CN109936788B - Support arm stretching structure and earphone - Google Patents

Abstract

The invention belongs to the technical field of electronic products, and particularly relates to a support arm stretching structure and an earphone, wherein the support arm stretching structure comprises a head-wearing support, a sliding sheet and a sliding buckle, a sliding groove is formed in the sliding sheet, the sliding buckle is in sliding fit with the sliding groove, the support arm stretching structure further comprises at least one connecting piece, each connecting piece comprises a screw, a nut and at least one waveform elastic piece, each waveform elastic piece is sleeved on the screw, at least one first connecting hole is formed in the head-wearing support, at least one second connecting hole is formed in the sliding buckle, the nut is arranged in the second connecting hole, the head-wearing support, the sliding sheet and the sliding buckle sequentially penetrate through the first connecting hole, the sliding groove and the second connecting hole through the screw and are in threaded connection with the nut, and the at least one waveform elastic piece is in butt joint with the head-wearing support, and the connecting piece is used for adjusting the degree of tightness of mutual bonding among the sliding buckle, the sliding sheet and the head-wearing support; therefore, the stretching hand feeling of the support arm stretching structure is effectively improved, the process is simple, and the reliability is good.

Description

Arm stretch structure and earphones

Technical Field

The invention belongs to the technical field of electronic products, and in particular relates to an arm stretching structure and an earphone.

Background technique

With the development of the electronics industry, electronic products such as smart phones, tablet computers and MP4 players have been widely used in people's daily lives. In the use of the above electronic products, headphones have become a very important auxiliary device and are widely used.

Headphones are loved by many music lovers for their comfortable wearing and fashionable appearance. However, the stretching feel of the headphone arms on the market is not very good. Some feel very tight, some feel very loose, and the stretching arm does not feel stretched after being stretched many times, which not only affects the comfort of users when wearing headphones, but also causes inconvenience during use.

Summary of the invention

The object of the present invention is to provide an arm stretching structure and earphones, aiming to solve the technical problem of poor hand feel of the arm stretching of the headphone in the prior art.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a support arm stretching structure, including a head-mounted bracket, a sliding plate and a sliding buckle, the sliding plate is provided with a sliding groove, and the sliding buckle is slidably matched with the sliding groove, the support arm stretching structure also includes at least one connecting member, each of the connecting members includes a screw, a nut and at least one corrugated spring sheet, each of the corrugated spring sheets is sleeved on the screw, the head-mounted bracket is provided with at least one first connecting hole, the sliding buckle is provided with at least one second connecting hole, the nut is arranged in the second connecting hole, the head-mounted bracket, the sliding plate and the sliding buckle pass through the first connecting hole, the sliding groove and the second connecting hole in sequence through the screw and are threadedly connected to the nut, and at least one of the corrugated spring sheets abuts against the head-mounted bracket.

Preferably, the screw includes a nut and a columnar connector, each of the corrugated spring sheets is sleeved on the columnar connector, the nut is arranged at one end of the columnar connector, and the other end of the columnar connector passes through the first connecting hole, the sliding groove and the second connecting hole in sequence to connect the head-mounted bracket, the sliding sheet and the sliding buckle.

Preferably, the connecting member further comprises a washer, and the washer is sleeved on the columnar connecting body and the washer sleeve is located between the corrugated spring sheet and the nut.

Preferably, the cylindrical connector includes a smooth portion and a threaded portion, the smooth portion is close to the nut, the corrugated spring sheet and the washer are sleeved on the smooth portion, and the threaded portion is threadedly connected to the nut.

Preferably, a sliding cavity is provided on the sliding sheet, a sliding groove is provided on the bottom wall of the sliding cavity, the sliding buckle comprises a sliding plate and a sliding bar arranged on the sliding plate, the sliding plate is arranged in the sliding cavity and the sliding bar slidably cooperates with the sliding groove.

Preferably, a gasket is arranged between the head-mounted bracket and the sliding plate, and a third connecting hole corresponding to the first connecting hole is opened on the gasket, and the connecting member passes through the first connecting hole, the third connecting hole, the sliding groove and the second connecting hole in sequence to be connected to the head-mounted bracket, the gasket, the sliding plate and the sliding buckle.

Preferably, the sliding plate and the sliding strip of the sliding buckle are integrally formed.

Preferably, the head-mounted bracket, the gasket and the sliding buckle are respectively provided with a first wire hole, a second wire hole and a third wire hole, and the first wire hole, the second wire hole, the sliding groove and the third wire hole are connected to form a wire hole for setting the headphone wire.

Preferably, the sliding buckle and the head-mounted bracket are both made of wear-resistant POM material, and the sliding sheet is an aluminum sliding sheet.

The beneficial effects of the present invention are as follows: the head-mounted bracket, the sliding plate and the sliding buckle of the support arm stretching structure of the present invention are sequentially penetrated through the first connecting hole of the head-mounted bracket, the sliding groove of the sliding plate and the second connecting hole of the sliding buckle by the screws of the connecting member, and are threadedly connected with the nut arranged in the sliding buckle, so that the head-mounted bracket, the sliding plate and the sliding buckle are connected to each other, and then the operating sliding buckle can drive the head-mounted bracket to slide relative to the sliding plate, so as to realize the telescopic adjustment of the entire support arm stretching structure; when it is necessary to increase the friction force of the telescopic adjustment, the screw can be tightened relative to the nut, so that the friction force of the head-mounted bracket and the sliding buckle relative to the sliding plate can be increased; when it is necessary to reduce the friction force of the telescopic adjustment, the screw can be loosened relative to the nut, so that the friction force of the head-mounted bracket and the sliding buckle relative to the sliding plate can be reduced, and because the corrugated spring sheet sleeved on the screw is always in contact between the head-mounted bracket and the nut, it can ensure that the deformation amount of the corrugated spring sheet remains stable, thereby greatly improving the feel of the support arm when stretched, so that the user has a good experience during use.

Another technical solution adopted by the present invention is: an earphone, which includes the above-mentioned arm stretching structure.

The earphones of the present invention use the above-mentioned arm stretching structure, so that when the slider slides on the slide, the deformation of each corrugated spring piece can be adjusted by rotating the screw to adjust the tightness of the contact between the slider and the head-mounted bracket, thereby effectively improving the stretching feel of the arm stretching structure of the earphones.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic structural diagram of a support arm stretching structure provided by an embodiment of the present invention;

FIG2 is a schematic diagram of an exploded structure of a support arm tensile structure provided by an embodiment of the present invention;

FIG3 is a second exploded structural schematic diagram of the support arm tensile structure provided by an embodiment of the present invention;

FIG4 is a first exploded structural diagram of a nut and a slide buckle of a support arm tensile structure provided by an embodiment of the present invention;

FIG5 is a second exploded structural diagram of a nut and a slide buckle of a support arm tensile structure provided by an embodiment of the present invention;

FIG6 is a schematic diagram of an exploded structure of a connecting piece of a support arm tensile structure provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a slide of the arm stretching structure provided in an embodiment of the present invention.

Among them, the reference numerals in the figure are:

10—Head mount 11—Accommodation cavity 12—Inner plate

20—slide 21—slide cavity 22—bottom wall

30—Sliding buckle 31—Sliding plate 32—Sliding strip

40—Connector 41—Screw 42—Corrugated spring

43—washer 44—nut 50—gasket

51—third connection hole 60—wire hole 61—first wire hole

62—Second line hole 63—Third line hole 121—First connection hole

221—sliding groove 311—second connecting hole 312—semi-arc retaining edge

411—Nut 412—Columnar connector 441—Blocking body

4121—Smooth part 4122—Threaded part.

Detailed ways

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to Figures 1 to 7 are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As shown in Figures 1 to 7, an embodiment of the present invention provides an arm stretching structure, including a head-mounted bracket 10, a slide 20 and a slide buckle 30, the slide 20 is provided with a sliding groove 221, the slide buckle 30 is slidably matched with the sliding groove 221, the arm stretching structure also includes at least one connecting member 40, each of the connecting members 40 includes a screw 41, a nut 44 and at least one corrugated spring piece 42, each of the corrugated spring pieces 42 is sleeved on the screw 41, the head-mounted bracket 10 is provided with at least one first connecting hole 121, the slide buckle 30 is provided with at least one second connecting hole 311, the nut 44 is arranged in the second connecting hole 311, the head-mounted bracket 10, the slide 20 and the slide buckle 30 pass through the first connecting hole 121, the sliding groove 221 and the second connecting hole 311 in sequence through the screw 41 and are threadedly connected to the nut 44, and at least one corrugated spring piece 42 abuts against the head-mounted bracket 10.

Specifically, the head-mounted bracket 10, the slide sheet 20 and the slide buckle 30 are sequentially penetrated through the first connecting hole 121 of the head-mounted bracket 10, the sliding groove 221 of the slide sheet 20 and the second connecting hole 311 of the slide buckle 30 through the screw 41 of the connecting member 40, and are threadedly connected with the nut 44 arranged in the slide buckle 30, so that the head-mounted bracket 10, the slide sheet 20 and the slide buckle 30 are connected to each other, and then the control of the slide buckle 30 can drive the head-mounted bracket 10 to slide relative to the slide sheet 20, so as to realize the telescopic adjustment of the entire arm stretching structure; when it is necessary to increase the friction force of the telescopic adjustment, the screw 4 can be tightened relative to the nut 44 1, so that the friction between the head-mounted bracket 10 and the slider 30 and the slide 20 can be increased; when the friction of the telescopic adjustment needs to be reduced, the screw 41 can be loosened relative to the nut 44, so that the friction between the head-mounted bracket 10 and the slider 30 and the slide 20 can be reduced, and because the corrugated spring piece 42 sleeved on the screw 41 is always in contact between the head-mounted bracket 10 and the nut 411, the deformation of the corrugated spring piece 42 can be ensured to remain stable, thereby greatly improving the feel of the arm when stretched, so that the user has a good experience during use, and its process is simple and reliable.

Furthermore, the nut 44 adopts an M2.5 copper nut. In order to make the overall appearance of the slide buckle 30 beautiful, when the nut 44 is set in the slide buckle 30, the second connecting hole 311 is set as a sunken through hole, and a blocking body 441 adapted to the sunken through hole is set on the periphery of the outer end of the nut 44, so that the outer surface of the nut 44 is flush with the outer surface of the slide buckle 30.

In this embodiment, as shown in Figure 6, the screw 41 includes a nut 411 and a columnar connector 412, each of the corrugated spring pieces 42 is sleeved on the columnar connector 412, the nut 411 is set at one end of the columnar connector 412, and the other end of the columnar connector 412 passes through the first connecting hole 121, the sliding groove 221 and the second connecting hole 311 in sequence to connect the head-mounted bracket 10, the slide 20 and the sliding buckle 30. Specifically, the screw 41 adopts an M2.5 T-stage machine screw that is compatible with the above-mentioned nut 44, that is, the screw 41 includes a nut 411 and a columnar connector 412 that are perpendicular to each other; two corrugated spring sheets 42 are provided and are stacked on the columnar connector 412, and the corrugated spring sheets 42 are sleeved between the nut 411 and the washer 43, thereby forming a buffer space to adjust the tightness of the columnar connector 412 connected in series between the head-mounted bracket 10, the gasket 50, the slide 20 and the slide buckle 30.

In this embodiment, as shown in FIG6 , the connector 40 further includes a washer 43, which is sleeved on the columnar connector 412 and is sleeved between the corrugated spring piece 42 and the nut 44. Specifically, the provision of the washer 43 can firstly better protect the corrugated spring piece 42, and avoid the unnecessary wear of the crest of the corrugated spring piece 42 caused by the direct point contact between the crest of the corrugated spring piece 42 and the head-mounted bracket 10 when the tightness of the corrugated spring piece 42 is adjusted, thereby extending its service life; and then the elastic force generated by the corrugated spring piece 42 can be transmitted to the head-mounted bracket 10 in a surface contact manner through the washer 43, so that the force is more uniform, thereby allowing the user to have a better stretching feel.

In this embodiment, as shown in FIG6 , the columnar connector 412 includes a smooth portion 4121 and a threaded portion 4122, the smooth portion 4121 is close to the nut 411, the corrugated spring piece 42 and the washer 43 are sleeved on the smooth portion 4121, and the threaded portion 4122 is threadedly connected to the nut 44. Specifically, in order to prevent the deformation of the corrugated spring piece 42 from being affected by the thread of the screw 41 during the process of adjusting the tightness when the corrugated spring piece 42 is squeezed, the columnar connector 412 is provided with a smooth portion 4121 and a threaded portion 4122, and the corrugated spring piece 42 and the washer 43 are sleeved on the smooth portion 4121, so as to ensure that the deformation of the corrugated spring piece 42 when it is squeezed can be fully reflected in the adjustment of the tightness.

In this embodiment, as shown in Figures 1 to 2 and Figure 7, a sliding cavity 21 is provided on the sliding sheet 20, a sliding groove 221 is provided on the bottom wall 22 of the sliding cavity 21, and the sliding buckle 30 includes a sliding plate 31 and a sliding bar 32 arranged on the sliding plate 31, the sliding plate 31 is arranged in the sliding cavity 21 and the sliding bar 32 is slidably matched with the sliding groove 221. Specifically, two sliding grooves 221 are provided and are parallel to each other, and two corresponding sliding strips 32 are also provided to match the sliding grooves 221, so that the slider 30 fits into the opening on the slide 20 and slides; during the sliding process, the surface of the sliding plate 31 arranged between the sliding strips 32 contacts the surface of the bottom wall 22 arranged between the two sliding grooves 221. In order to make the sliding between the slider 30 and the slide 20 smooth and improve the stretching feel, the surface of the sliding plate 31 arranged between the sliding strips 32 is a high-gloss surface, and dry lubricating oil is applied on the surface of the bottom wall 22 arranged between the two sliding grooves 221 to reduce friction. At the same time, the surface of the slide 20 is also anodized.

In this embodiment, as shown in Figure 2, a gasket 50 is arranged between the head-mounted bracket 10 and the slide 20, and a third connecting hole 51 corresponding to the first connecting hole 121 is opened on the gasket 50. The connecting member 40 passes through the first connecting hole 121, the third connecting hole 51, the sliding groove 221 and the second connecting hole 311 in sequence to be connected to the head-mounted bracket 10, the gasket 50, the slide 20 and the sliding buckle 30. Specifically, a receiving cavity 11 is provided on the head mounted bracket 10, and a gasket 50 is arranged in the receiving cavity 11. A first connecting hole 121 is provided on the inner plate body 12 in the receiving cavity 11, so that the gasket 50 can be firmly fixed on the head mounted bracket 10, and the stability of the movement of the slide 20 on the head mounted bracket 10 is effectively improved, and the gasket 50 and the head mounted bracket 10 are not relatively shifted when the slider 30 slides on the slider 20. In addition, the side surface where the gasket 50 first contacts the slider 20 is a high gloss surface to reduce the friction between the slider 20 and the gasket 50, thereby improving the user's stretching feel; and, by arranging the gasket 50 between the head mounted bracket 10 and the slider 20, the gasket 50 fills the gap between the head mounted bracket 10 and the slider 20, so that the head mounted bracket 10 and the slider 20 can be directly connected together more stably.

In this embodiment, as shown in Figures 4 and 5, the sliding plate 31 and the sliding bar 32 of the sliding buckle 30 are integrally formed. Specifically, in order to ensure the stability of the sliding buckle 30 sliding on the sliding sheet 20 and not to affect the user's stretching feel due to relative slippage when the sliding buckle 30 slides on the sliding sheet 20, the sliding plate 31 and the sliding bar 32 are set to be integrally formed.

In this embodiment, as shown in FIGS. 2-3 , the head-mounted bracket 10, the gasket 50 and the slide buckle 30 are respectively provided with a first wire hole 61, a second wire hole 62 and a third wire hole 63. The first wire hole 61, the second wire hole 62, the sliding groove 221 and the third wire hole 63 are connected to form a wire hole 60 for setting the headphone wire. Specifically, the wire hole 60 runs through the inner and outer sides of the tensile structure to facilitate the insertion of the headphone wire. In order to prevent the headphone wire from contacting the edge of the wire hole 60 and being worn in the wire hole 60, a semi-arc retaining edge 312 is provided on the outer side of the slide buckle 30 and above the third wire hole 63. The semi-arc retaining edge 312 protects the slide buckle 30, and the design of the semi-arc retaining edge 312 improves the beauty of the slide buckle 30.

In this embodiment, the slider 30 and the head-mounted bracket 10 are both made of wear-resistant POM material, and the slide sheet 20 is an aluminum slide sheet. Specifically, the slider 30 and the head-mounted bracket 10 are both made of wear-resistant POM material, which can well guarantee the number of stretching times by utilizing its wear-resistant and non-abrasive properties; the aluminum slide sheet 20 is rubbed against the wear-resistant POM material, which is wear-resistant and non-abrasive, and can well guarantee the effective stretching times of the arm stretching structure.

An embodiment of the present invention further provides an earphone, which includes the above-mentioned arm stretching structure.

The earphones of the embodiment of the present invention use the above-mentioned arm stretching structure, so that when the slider 30 slides on the slide 20, the deformation of each corrugated spring piece 42 is adjusted by rotating the screw 41 to adjust the tightness of the contact between the slide 20 and the head-mounted bracket 10, thereby effectively improving the stretching feel of the arm stretching structure of the earphones.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A support arm stretching structure, comprising a head-mounted bracket, a sliding sheet and a sliding buckle, the sliding sheet is provided with a sliding groove, and the sliding buckle is slidably matched with the sliding groove, characterized in that: the support arm stretching structure also includes at least one connecting member, each of the connecting members includes a screw, a nut and at least one corrugated spring sheet, each of the corrugated spring sheets is sleeved on the screw, the head-mounted bracket is provided with at least one first connecting hole, the sliding buckle is provided with at least one second connecting hole, the nut is arranged in the second connecting hole, the head-mounted bracket, the sliding sheet and the sliding buckle pass through the first connecting hole, the sliding groove and the second connecting hole in sequence through the screw and are threadedly connected to the nut, and at least one corrugated spring sheet abuts against the head-mounted bracket; The screw comprises a nut and a cylindrical connector, each of the corrugated spring sheets is sleeved on the cylindrical connector, the nut is arranged at one end of the cylindrical connector, and the other end of the cylindrical connector passes through the first connecting hole, the sliding groove and the second connecting hole in sequence to connect the head-mounted bracket, the sliding sheet and the sliding buckle; The corrugated spring pieces are provided with two pieces, and are stacked on each other and sleeved on the columnar connecting body. 2. The arm tensile structure according to claim 1 is characterized in that: the connecting member further comprises a washer, the washer is sleeved on the columnar connecting body and the washer sleeve is located between the corrugated spring sheet and the nut. 3. The arm stretching structure according to claim 2 is characterized in that: the cylindrical connector includes a smooth portion and a threaded portion, the smooth portion is close to the nut, the corrugated spring sheet and the washer are sleeved on the smooth portion, and the threaded portion is threadedly connected to the nut. 4. The arm stretching structure according to claim 1 is characterized in that: a sliding cavity is opened on the sliding plate, a sliding groove is opened on the bottom wall of the sliding cavity, the sliding buckle includes a sliding plate and a sliding strip arranged on the sliding plate, the sliding plate is arranged in the sliding cavity and the sliding strip slides with the sliding groove. 5. The arm stretching structure according to claim 1 is characterized in that: a gasket is arranged between the head-mounted bracket and the sliding plate, and a third connecting hole corresponding to the first connecting hole is opened on the gasket, and the screw passes through the first connecting hole, the third connecting hole, the sliding groove and the second connecting hole in sequence to be connected to the head-mounted bracket, the gasket, the sliding plate and the sliding buckle. 6. The arm stretching structure according to claim 4, characterized in that the sliding plate and the sliding strip of the sliding buckle are integrally formed. 7. The arm stretching structure according to claim 5 is characterized in that: the head-mounted bracket, the gasket and the sliding buckle are respectively provided with a first wire hole, a second wire hole and a third wire hole, and the first wire hole, the second wire hole, the sliding groove and the third wire hole are connected to form a wire hole for setting the headphone wire. 8. The arm stretching structure according to any one of claims 1 to 6, characterized in that the sliding buckle and the head-mounted bracket are both made of wear-resistant POM material, and the sliding sheet is an aluminum sliding sheet. 9. An earphone, characterized by comprising the arm stretching structure according to any one of claims 1 to 8.