CN108204706B - Door body and refrigerator having the same - Google Patents

Abstract

The invention provides a door body, which comprises a first door body with an object taking opening, a second door body and a driving assembly, wherein the second door body is rotatably connected with the first door body to open or shield the object taking opening; the driving assembly comprises a driving mechanism, a guide rail and an elastic piece, wherein the driving mechanism is arranged on the first door body and drives the main rotating shaft to rotate along the axial direction of the main rotating shaft and simultaneously outwards protrude out of the first door body, the guide rail is arranged on the first door body to limit the moving track of the main rotating shaft, the elastic piece is connected with the first door body and the second door body, one end of the guide rail is rotatably connected with the first door body, and the other end of the guide rail is a free end. The second door body rotates to open the object taking opening and moves outwards at the same time, and interference between the second door body and the existing racks in the box body is avoided.

Description

Door body and refrigerator having the same

technical field

The invention relates to the field of household appliances, in particular to a door body assembly and a refrigerator with a small door that can be rotated to open.

Background technique

Among the high-end refrigerators on the existing market, most models have a door-in-door structure. The door-in-door structure can not only improve the appearance design effect of the refrigerator, but also make it easier to access the food in the refrigerator. The opening and closing of the door in the existing door usually takes one side as the axis, and applies a pulling force or a pushing force on the other side to open and close the door; lead to serious cold leakage. The problem of cold leakage will cause the press to work frequently and increase the power consumption.

In view of this, it is necessary to improve the existing door assembly with small door and refrigerator to solve the above problems.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a door assembly and a refrigerator having a small door that can be rotated to open.

In order to achieve the above-mentioned purpose of the invention, the present invention provides a door body, comprising a first door body with an object extraction port, a second door body rotatably connected with the first door body to open or cover the object extraction port, and The drive assembly, the second door body has a main rotating shaft and a slave rotating shaft located on the same straight line, one of the main rotating shaft and the slave rotating shaft is located in the middle part of the upper end of the second door body, and the other is located in the The middle part of the lower end of the second door body; the driving assembly includes a drive assembly disposed on the first door body to drive the main shaft to rotate along its axial direction, and at the same time to make the main shaft protrude out of the first door The driving mechanism of the door body, the guide rail set on the first door body to define the moving track of the slave shaft, and the elastic piece connecting the first door body and the second door body, one end of the guide rail is connected to the The first door body is rotatably connected, and the other end is a free end.

As a further improvement of the present invention, the driving mechanism includes a switch arranged on the outside of the first door body or the second door body, a motor communicatively connected to the switch, a driving wheel connected to the motor in a driving manner, The driving wheel is connected by a cam through a fixed rod, a driven wheel meshing with the driving wheel, and a coupling connecting the driven wheel with the main shaft, and the fixed rod is connected to the fixed rod at different positions on the upper outer edge of the cam. The distance between the central axis is different, when the driving mechanism drives the main rotating shaft to rotate along its axial direction and at the same time causes the main rotating shaft to protrude out of the first door body, the elastic member is dedicated to the first door body. The two door bodies make the coupling and the cam always in conflict.

As a further improvement of the present invention, the coupling includes a first bracket fixedly connected to the driven wheel, a second bracket fixedly connected to the main shaft, and both the first bracket and the second bracket The connecting rod is rotated in the up-down direction, and the connecting rod is always in conflict with the outer edge of the cam.

As a further improvement of the present invention, the bottom of the second door body has an accommodating cavity, and the main rotating shaft is located in the accommodating cavity; the end of the second bracket away from the connecting rod has a fixing block, and the fixing block There is a through hole for accommodating the main rotating shaft, and a positioning structure for positioning the main rotating shaft and the through hole along the circumferential direction of the main rotating shaft; the driving mechanism also includes a connection to the fixing block and the main rotating shaft. or elastic supports between the accommodating cavities.

As a further improvement of the present invention, the cam has a first cam block and a second cam block respectively disposed on both sides of the fixing rod, and the distance from the outer edge of the first cam block to the central axis of the fixing rod is the same, Along the direction of the first cam block toward the second cam block, the distance from the outer edge of the second cam block to the central axis of the fixing rod gradually increases; the cam is along the direction of the second cam block. The middle position of the outer edge and the connecting line of the central axis of the fixing rod are symmetrically arranged, and when the second door body covers the extraction port, the middle position of the coupling and the outer edge of the second cam block contradict each other.

As a further improvement of the present invention, the elastic member is connected between the first door body and the upper rotating shaft.

As a further improvement of the present invention, the elastic member is located in the guide rail.

As a further improvement of the present invention, the peripheral edge of the second door body has a sealing structure matched with the extraction opening of the first door body.

As a further improvement of the present invention, the second door body is provided with several bottle seats.

To achieve the above purpose of the invention, the present invention also provides a refrigerator, which includes a box body and the door body.

The beneficial effects of the present invention are: in the door body of the present invention, by arranging the slave rotating shaft and the main rotating shaft at the middle part of the second door body, the second door body rotates to open the retrieval When the opening is opened, it can also cover part of the extraction opening, and the opening angle is small, which can reduce cold leakage; The body protrudes outward from the first door body, so that the side of the second door body that rotates toward the box body protrudes into the box body at a small distance, and will not be separated from the existing racks in the box. It is not necessary to reserve a gap between the existing rack and the second door body, and the space utilization rate in the box is high; and the second door body of any width can be rotated to open without interfering with The shelves inside the box interfere with each other.

Description of drawings

Fig. 1 is the structural representation of the refrigerator of the present invention;

Fig. 2 is the structural representation that the door body in Fig. 1 is in the closed state of the small door;

Fig. 3 is the structural representation that the small door in Fig. 1 is in the open state;

4 is a partial cross-sectional view of the refrigerator of the present invention when the small door is opened by 90°;

Fig. 5 is the matching diagram of the driving wheel and the driven wheel of Fig. 4;

Fig. 6 is the structural representation of the cam in Fig. 4;

FIG. 7 is a cross-sectional view along the A-A direction of the small door in FIG. 4 after removing the bottle holder and its fixing structure.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 4 , the refrigerator 100 of the present invention has a box body 1 , a door body 2 , and a storage room surrounded by the box body 1 and the door body 2 , and the storage room is provided with a shelf for storing articles. The object rack 11, the door body 2 is provided with a bottle holder 20 for storing objects.

Please refer to FIG. 1 to FIG. 7 in detail, the door body 2 includes a first door body 21 having an extraction opening, a second door body 21 rotatably connected with the first door body 21 to open or cover the extraction opening The door body 22, the bottle base 20 is disposed on the second door body 22, so that only when objects need to be taken and placed in the bottle base 20, the second door body 22 can be rotated and opened to reduce cold leakage. In this embodiment, the second door body 22 has a main rotating shaft 221 and a slave rotating shaft 222 located on the same straight line, and one of the main rotating shaft 221 and the slave rotating shaft 222 is located at the upper end of the second door body 22 The middle part and the other part are located at the middle part of the lower end of the second door body 22 . According to the present invention, by arranging the secondary rotating shaft 222 and the main rotating shaft 221 in the middle of the second door body 22, when the second door body 22 is rotated to open the pick-up port, it can also cover part of the The opening angle of the extraction port is small, which can reduce cold leakage.

The door body 2 also includes a drive assembly, which includes a drive assembly provided on the first door body 21 to drive the main shaft 221 to rotate along its axial direction, while making the main shaft 221 protrude outwards. The driving mechanism 23 of the first door body 21 , the guide rail 24 provided on the first door body 21 to define the movement trajectory of the slave shaft 222 , and the connection between the first door body 21 and the second door body 22 One end of the guide rail 24 is rotatably connected with the first door body 21, and the other end is a free end. When the second door body 22 is rotated to open the pick-up port, the secondary shaft 222 will drive the guide rail 24 relative to the first door body 21 during the movement of the second door body 22 . Rotate, but the secondary shaft 222 will not be separated from the guide rail 24. During this process, the elastic deformation of the elastic member 25 produces a pulling force on the second door body 22 to pull it back to the state of covering the extraction port. , under the cooperation of the drive mechanism 23 , the guide rail 24 and the elastic member 25 , the second door body 22 rotates smoothly.

When the second door body 22 needs to be rotated to open the pick-up port, the driving mechanism 23 drives the main rotating shaft 221 to drive the second door body 22 to simultaneously make the second door open during the process of rotating and opening. The body 22 protrudes out of the first door body 21 , so that the side of the second door body 22 that rotates toward the inside of the box body 1 protrudes into the box body 1 at a small distance, and will not be connected to the box body 1 . Interference is formed between the existing racks 11, and there is no need to reserve a gap between the existing racks 11 and the second door body 22, and the space utilization rate in the box body 1 is high; and any The width of the second door body 22 can be rotated to open without interfering with the rack 11 in the box body 1 . During this process, the secondary rotating shaft 222 will drive the guide rail 24 to rotate relative to the first door body 21 during the movement of the second door body 22 , but the secondary rotating shaft 222 will not be separated from the guide rail 24 . , the elastic deformation of the elastic member 25 generates a pulling force, and the cooperation of the driving mechanism 23 , the guide rail 24 and the elastic member 25 makes the second door body 22 rotate smoothly. Of course, the elastic member 25 exerts a pulling force on the second door body 22, so that the second door body 22 can also be accommodated in the extraction opening when the second door body 22 closes the extraction opening; The second door body 22 can be driven by the second driving assembly to rotate and close the extraction port.

Specifically, please refer to FIG. 3 and FIG. 4 , the elastic member 25 is connected between the first door body 21 and the secondary shaft 222 , preferably the elastic member 25 is located in the guide rail 24 , When the second door body 22 is opened, it will not affect the user to take items from the access port.

Specifically, please refer to FIG. 3 to FIG. 6 , the driving mechanism 23 includes a switch (not shown) disposed outside the first door body 21 or the second door body 22 , a switch communicatively connected to the switch The motor 231, the driving wheel 232 drivingly connected with the motor 231, the cam 233 connected with the driving wheel 232 through the fixing rod 236, the driven wheel 234 engaged with the driving wheel 232, and the driven wheel 234 connected with the driving wheel 234. For the coupling 235 of the main shaft 221, the distances between the upper outer edge of the cam 233 and the central axis of the fixing rod 236 are different at different positions; when the drive mechanism 23 drives the main shaft 221 to rotate along its axial direction , the elastic member 25 is committed to the second door body 22 so that the coupling 235 and the cam 233 are always in conflict. When different positions of the upper outer edge of the cam 233 collide with the coupling 235, the distance between the end of the coupling 235 away from the driven wheel 234 and the plane where the first door body 21 is located is different, so the When the cam 233 rotates, it presses the coupling 235 to drive the main shaft 221 to protrude out of the first door body 21 , so that the second door body 22 moves outward while rotating.

The motor 231 is a stepping motor 231. After receiving the signal sent by the switch, the stepping motor 231 drives the cam 233 and the coupling 235 to rotate through the driving wheel 232 and the driven wheel 234 respectively. The coupling 235 is pressed to move outwards, thereby driving the second door body 22 to move outwards in the process of rotating and opening.

The coupling 235 includes a first bracket 2351 fixedly connected with the driven wheel 234, a second bracket 2353 fixedly connected with the main shaft 221, and both the first bracket 2351 and the second bracket 2353. Rotate the connected connecting rod 2352 in the up-down direction, and the connecting rod 2352 is always in conflict with the outer edge of the cam 233 . Both the first bracket 2351 and the second bracket 2353 include a Y-shaped fixing frame and a supporting frame located on the fixing frame. The connecting rod 2352 is rotatably connected to the middle position of the supporting frame, and all the The connecting rod 2352 can rotate up and down relative to the supporting frame. When the connecting rod 2352 moves outward under the pressure of the cam 233, the connecting rod 2352 moves downward at the same time close to one end of the second bracket 2353; otherwise, when the connecting rod 2352 moves inward , one end of the connecting rod 2352 close to the second bracket 2353 moves upward at the same time.

Further, the bottom of the second door body 22 has an accommodating cavity 223, and the main shaft 221 is located in the accommodating cavity 223; the end of the second bracket 2353 away from the connecting rod 2352 has a fixing block 2354, so The fixing block 2354 has a through hole (not shown) for accommodating the main rotating shaft 221 , and a positioning structure (not shown) for positioning the main rotating shaft 221 and the through hole along the circumferential direction of the main rotating shaft 221 ; When the cam 233 rotates, it exerts force on the connecting rod 2352, the connecting rod 2352 drives the second bracket 2353 to rotate, and the fixing block 2354 moves up and down relative to the main rotating shaft 221 while acting on the positioning structure. The main rotating shaft 221 is driven down to rotate, and the main rotating shaft 221 drives the second door body 22 to rotate; the driving mechanism 23 further includes a connection between the fixing block 2354 and the main rotating shaft 221 or the receiving cavity 223 The elastic support member 224 between them, the elastic support member 224 plays an elastic support role when the second bracket 2353 moves up and down, so as to ensure that the second door body 22 does not move down.

Referring to FIGS. 4 and 6 , the cam 233 has a first cam block 2331 and a second cam block 2332 respectively disposed on both sides of the fixing rod 236 . The outer edge of the first cam block 2331 reaches the The distance between the fixing rods 236 is the same, and along the direction of the first cam block 2331 toward the second cam block 2332 , the distance from the outer edge of the second cam block 2332 to the fixing rod 236 gradually increases. The middle position of the cam 233 along the middle position of the outer edge of the second cam block 2332 and the connecting line of the fixing rod 236 are symmetrically arranged, and when the second door body 22 covers the extraction port, the coupling The gate 235 is in conflict with the middle position of the outer edge of the second cam block 2332, and the second door body 22 can open or close the extraction port in two directions.

When the second door body 22 needs to be rotated to open the pick-up port, the first cam block 2331 first presses the connecting rod 2352. During this process, the second door body 22 only revolves around the slave rotating shaft 222 and the connecting rod 2352. The main shaft 221 rotates without moving outward, which facilitates the quick separation between the outer edge of the second door body 22 and the extraction port; when the second cam block 2332 presses the connecting rod 2352, the When the second door body 22 rotates and moves outward, the resistance of the whole process is small.

In addition, as shown in FIG. 7 , the peripheral edge of the second door body 22 has a sealing structure 26 matched with the extraction opening of the first door body 21 , and the sealing structure 26 is embedded in the second door body 22 The cut surface of the peripheral edge is an arc-shaped PVC rubber pad, and the second door body 22 can be opened and closed normally when it rotates in two directions while being in contact with the extraction port, thereby achieving effective heat preservation of the refrigerator 100 .

To sum up, in the door body 2 of the present invention, by arranging the slave rotating shaft 222 and the main rotating shaft 221 in the middle part of the second door body 22, the second door body 22 rotates to open all the When the extraction opening is used, part of the extraction opening can also be covered, and the opening angle is small, which can reduce cold leakage; The second door body 22 protrudes out of the first door body 21, so that the side of the second door body 22 that rotates toward the inside of the box body 1 protrudes into the box body 1 at a small distance, and will not It interferes with the existing rack 11 in the box body 1, and there is no need to reserve a gap between the existing rack 11 and the second door body 22, and the space utilization rate in the box body 1 is relatively high. and the second door body 22 of any width can be rotated to open without interfering with the rack 11 in the box body 1 .

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. a door body, is characterized in that, comprises The first door body has an extraction port; A second door body that is rotatably connected with the first door body to open or shield the extraction port, the second door body has a main shaft and a slave shaft located on the same straight line, the main shaft and the slave One of the rotating shafts is located in the middle part of the upper end of the second door body, and the other is located in the middle part of the lower end of the second door body; A drive assembly, comprising a drive mechanism arranged on the first door body to drive the main shaft to rotate along its axial direction while making the main shaft protrude out of the first door body, and a drive mechanism arranged on the first door body. The first door body is provided with a guide rail that defines the movement track of the slave shaft, and an elastic member connecting the first door body and the second door body. One end of the guide rail is rotatably connected to the first door body, and the other One end is the free end; The driving mechanism includes a switch arranged on the outside of the first door body or the second door body, a motor connected in communication with the switch, a driving wheel connected with the motor in a driving manner, and a fixed rod connected with the driving wheel. The cam, the driven wheel meshing with the driving wheel, and the coupling connecting the driven wheel and the main rotating shaft, the distances between the different positions of the upper outer edge of the cam and the central axis of the fixed rod are different, so When the driving mechanism drives the main rotating shaft to rotate along its axial direction and at the same time causes the main rotating shaft to protrude out of the first door body, the elastic member is committed to the second door body so that the The coupling is always in conflict with the cam. 2 . The door body according to claim 1 , wherein the coupling comprises a first bracket fixedly connected with the driven wheel, a second bracket fixedly connected with the main shaft, and a first bracket fixedly connected with the first Both the first bracket and the second bracket rotate connected connecting rods in the up-down direction, and the connecting rods always collide with the outer edge of the cam. 3 . The door body according to claim 2 , wherein: the bottom of the second door body has a receiving cavity, and the main rotating shaft is located in the receiving cavity; the second bracket is far away from the connecting rod. 4 . One end has a fixing block, the fixing block has a through hole for accommodating the main rotating shaft, and a positioning structure for positioning the main rotating shaft and the through hole along the circumferential direction of the main rotating shaft; the driving mechanism also includes a An elastic support between the fixed block and the main rotating shaft or the accommodating cavity. 4 . The door body according to claim 1 , wherein the cam has a first cam block and a second cam block respectively disposed on both sides of the fixing rod, and the outer edge of the first cam block reaches the The distance from the central axis of the fixed rod is the same, and along the direction of the first cam block toward the second cam block, the distance from the outer edge of the second cam block to the central axis of the fixed rod gradually increases; the The cam is arranged symmetrically along the connection line between the middle position of the outer edge of the second cam block and the central axis of the fixing rod. When the second door body covers the extraction port, the coupling and the first The middle positions of the outer edges of the two cam blocks collide. 5 . The door body according to claim 1 , wherein the elastic member is connected between the first door body and the secondary shaft. 6 . 6. The door body according to claim 5, wherein the elastic member is located in the guide rail. 7 . The door body according to claim 1 , wherein the peripheral edge of the second door body has a sealing structure matched with the extraction opening of the first door body. 8 . 8 . The door body according to claim 1 , wherein the second door body is provided with a plurality of bottle seats. 9 . 9 . A refrigerator, comprising a box body and a door body, wherein the door body is the door body according to any one of claims 1 to 8 .

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