CN102465860B - an air compressor - Google Patents

Abstract

The invention discloses an air compressor, especially mean a resistance that can reduce the piston body of the compressor and make the air compressor can improve the air compression efficiency while reciprocating in the cylinder chamber, it is adjacent to cylinder and extend a gas storage seat whose diameter of the hollow portion is equal to or greater than the diameter of cavity of the cylinder at least directly from the cylinder, make the pressure that the piston body bears while reciprocating reduce and can therefore increase the propelling speed, greatly increase the efficiency of the air compression; the upper end of the gas storage seat is provided with a plurality of circularly arranged riveting columns, and a top cover which is oppositely provided with circularly arranged circular riveting holes is mechanically and firmly fixed on the gas storage seat through a stamping machine.

Description

an air compressor

technical field

The present invention relates to an air compressor, in particular to an air compressor in which the cylinder and the air storage seat are not arranged in phase separation, but are adjacent to the cylinder and directly extended from the cylinder to form an inner hollow part with at least the same diameter. The air storage seat equal to or larger than the diameter of the inner cavity of the cylinder reduces the pressure on the piston body during reciprocating motion and can thus increase the pushing speed, greatly increasing the efficiency of air compression. On the other hand, the combination of the air storage seat and the top cover at the upper end is fixed by stamping and riveting, which is different from the manual method of screwing and fixing with screws and nuts. It can be quite firmly combined without the problem of loosening.

Background technique

The inventor has been working on the research and development of air compressors for a long time, transforming the early air compressors that were labor-intensive and complicated in structure into products with a simplified structure and easy and quick assembly; or improving the structure of the air compressor to strengthen the performance of the air compressor use potency. The main structure of these air compressors is that a motor drives a piston body to perform reciprocating compression in the cylinder, and the compressed air can be transported from the cylinder to the air storage seat, and then the manifold set by the air storage seat It is connected to items of different usage properties through intermediate transmission components, such as inflatable valves or functional components, such as safety valves, air release valves, etc.

However, the diameter of the inner cavity of the air storage seat of all prior art air compressors is smaller than the diameter of the inner cavity of the cylinder, so the valve between the cylinder and the air storage seat, or the so-called elastic reed, is subjected to the direction of reaction. The pressure is strong, so it will directly affect the speed at which the piston body of the compressor reciprocates in the cylinder chamber, that is, the air compression efficiency of the air compressor cannot be improved.

Contents of the invention

The object of the present invention is to provide an air compressor to solve the problem that the air compression efficiency cannot be further improved in the prior art.

In order to achieve the above object, the solution of the present invention is:

An air compressor, which includes a main frame body, the main frame body is connected with a cylinder that can be operated by a piston body, and a power mechanism including a motor is fixed on it, and a weight rotating disk with a crank tip is arranged on the On the main frame body, the crank tip is pivotally connected to the piston body. When the motor is activated, the crank tip is driven to perform circular motion, and the piston head of the piston body is driven to reciprocate in the cylinder so that the compressed air in the cylinder is pushed into the air compressor. In the air storage seat, wherein, adjacent to the cylinder and directly extending from the cylinder body, there is an air storage seat whose inner cavity diameter is at least equal to the inner cavity diameter of the cylinder.

Further, the diameter of the inner cavity of the air storage seat is larger than the diameter of the inner cavity of the cylinder.

Further, the bottom of the air storage seat is adjacent to the top wall of the cylinder and forms a shared middle wall.

Further, the intermediate wall is provided with an air hole, and the air hole allows the compression chamber of the cylinder cavity to communicate with the inner space of the air storage seat, and the intermediate wall around the air hole is provided with a plurality of protruding pillars arranged in a circle at intervals , a gap is formed between the bosses.

Further, the air compressor also includes a valve seat and a spring, the valve seat is placed in the inner enclosure room jointly surrounded by the above-mentioned plurality of protruding posts arranged at intervals in a ring shape, and the spring is placed in the valve seat.

Further, the air compressor also includes an elastic reed, which is arranged at the air hole on the aforementioned intermediate wall to open and close the air in and out.

Further, the elastic reed can still be resisted by the pressing part of the top cover when it is opened.

Further, the circular top of the gas storage seat forms a circular inner wall lip, and the top expands an enlarged wall around, and a plurality of rivet columns arranged in a circle at intervals are arranged on the enlarged wall, and the riveted A groove is formed between the post and the lip of the inner wall; the air compressor also includes a circular top cover, which is provided with a plurality of fully penetrated riveting holes on the near outer circumference, and extends down a circle in the central section. The cylinder column and the rivet holes of the top cover are correspondingly combined with the rivet columns on the aforesaid amplified wall, and the top cover is firmly riveted and combined with the air storage seat by processing the punching machine.

Further, the cylindrical column is provided with a convex pressing portion, and the convex pressing portion is against the aforementioned spring and the valve seat.

Further, the cylindrical column has a bottom edge, and a convex pressing part is formed on the bottom edge toward the center of the cylindrical column, and the convex pressing part is against the aforementioned spring and valve seat; and the cylinder of the top cover The bottom edge of the column is covered on the upper half of the aforementioned convex column, and the compressed air flows into the inner space of the air storage seat through the gap between the convex columns.

Further, the top cover is provided with an outer wall, which fits over the upper half of a plurality of protruding pillars arranged at intervals in a ring shape, forming an inner layer with a smaller diameter inside the outer wall. For the cylinder wall, a pressing portion is formed at the end of the inner cylinder wall, and the pressing portion compresses the spring and the valve seat to form a gap layer between the inner cylinder wall and the outer cylinder wall.

Further, the air storage seat further forms an upwardly extending cylinder around the air hole of the intermediate wall, a gap is formed between the top end of the cylinder and the top cover, and a first inner hollow is formed on the inner diameter of the cylinder, And another second hollow part is formed on its outer diameter surface, and the bottom end of the first hollow part of the cylinder forms a plurality of projections separated by an appropriate distance, and a gap is naturally formed between two adjacent projections. , the protrusions form a circular alcove, the alcove provides the valve seat and spring, so the compressed air passes through the air hole and then passes through the gap to the first inner hollow of the cylinder, and then circulates through the gap above the top to the In the second inner space, the compressed air is directed to the connected objects through each manifold.

After adopting the above-mentioned structure, an air compressor related to the present invention has a cylinder for the reciprocating movement of the piston body, and an inner hollow part adjacent to the cylinder and directly extended by the cylinder has a diameter of at least The air storage seat is equal to or larger than the diameter of the inner cavity of the cylinder, so that the pressure on the piston body during reciprocating motion is reduced and the pushing speed can be increased accordingly, thereby greatly increasing the efficiency of air compression.

Description of drawings

Fig. 1 is an exploded view of part of the structure of the air compressor of the present invention.

Fig. 2 is an assembly diagram of the air compressor of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the air compressor of the present invention.

Fig. 4 is a schematic diagram of the protruding post and the gap between the protruding post and the protruding post in Fig. 3 of the present invention, and expresses the flow of compressed air through the gap and air hole.

Fig. 5 is a cross-sectional structure diagram of the cylinder and the air storage seat of the present invention.

Fig. 6 is a partial cross-sectional schematic diagram showing the diameter of the cylinder and the diameter of the air storage seat in the present invention.

Fig. 7 is a schematic cross-sectional view of another roof structure of the present invention cooperating with the air storage seat.

Fig. 8 is a schematic cross-sectional view of the cooperation between the top cover of the present invention and the gas storage seat of different structures.

Fig. 9 is a partial cross-sectional structural diagram of the cooperation between the protrusion and the valve seat at the bottom end of the cylinder of the gas storage seat in Fig. 8 of the present invention.

Fig. 10 is a schematic diagram of the flow of compressed air during operation in Fig. 9 of the present invention.

Fig. 11 is a structural view of an embodiment of an elastic reed on the air hole of the present invention.

Fig. 12 is an action diagram of Fig. 11 in the present invention.

In the picture:

10 main frame body 11 motor

12 small gears 13 large gears

14 crank pin 15 piston body

16 piston head 17 cooling fan blade

18 weight rotating disc 2 cylinders

20 middle wall 21 top wall

22 air hole 23 boss

230 inner wall room 25 clearance

26 compression chamber 29 inner cavity

31 valve seat 32 spring

51 top cover 52 riveting holes

53 cylindrical column 531 bottom edge

532 Pressing part 533 Gap layer

534 outer wall 535 inner wall

6 air storage seat 60 bottom

601 boss 6011 clearance

602 alcove 603 cylinder

605 inner hollow part 6051 first inner hollow part

6052 the top of the second inner space 606

607 clearance 608 clearance

609 bump 61 top

62 Amplified wall 63 Riveting column

64 inner wall lip 66 groove

67, 68, 69 manifold 7 elastic reeds

91 hose 92 safety valve

93 pressure gauge 95 rubber gasket

Detailed ways

In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

Please refer to Fig. 1 to Fig. 4, a kind of air compressor that the present invention relates to, it can provide the cylinder 2 that piston body 15 operates and the main frame body 10 that provides motor 11 to fix and design into the structural state of integral molding, this main frame The body 10 can fix the power mechanism of the air compressor, and the power mechanism includes a motor 11, a pinion gear 12 for transmission purposes, a bull gear 13, a weight rotating disc 18 with a crank tip 14, and a cooling fan blade 17 for heat dissipation purposes. The motor 11 drives the power mechanism of the air compressor so that the piston head 16 of the piston body 15 can perform reciprocating compression in the inner cavity 29 of the cylinder 2, and the compressed air can be compressed by pushing the valve seat 31 through the air hole 22 The spring 32 allows the compressed air to enter the air storage seat 6 . Then can be provided with a plurality of manifolds 67,68,69 on the air storage seat 6, manifold 67 can connect an end of a flexible pipe 91, certainly the other end then can connect an air nozzle (not shown in the figure) and connect to the Inflated articles; manifold 68 can be applied to set a safety valve 92; manifold 69 can be set with a pressure gauge 93 . The most important structural feature of the present invention is that an air storage seat 6 with an inner cavity 605 whose diameter is at least equal to or greater than the diameter of the inner chamber 29 of the cylinder 2 is directly adjacent to the cylinder 2 and is directly extended from the cylinder 2 body, as shown in the figure 6 (the spring is not shown in the figure), the diameter D2 of the inner hollow portion 605 of the air storage seat 6 is greater than the diameter D1 of the inner chamber 29 of the cylinder 2, so that the pressure received by the piston body 15 during reciprocating motion can be increased. In order to reduce and thus increase the pushing speed of the piston body 15, the efficiency of air compression is greatly increased.

Please cooperate with Figures 1 to 4 at the same time, the air storage seat 6 is adjacent to the top wall 21 of the cylinder 2 at the bottom 60 and forms a shared intermediate wall 20, and an air hole 22 is provided on the intermediate wall 20, and the air hole 22 can allow The compression chamber 26 of the inner cavity 29 of the cylinder 2 communicates with the inner space 605 of the air storage seat 6, and the intermediate wall 20 around the aforementioned air hole 22 is provided with a plurality of convex columns 23 arranged in a circle at intervals. 23 and the boss 23 is formed with a gap 25 (refer to FIG. 4 ), and the valve seat 31 can be placed in the inner enclosure 230 jointly surrounded by the aforementioned plurality of bosses 23 arranged at intervals in a ring shape. , a spring 32 can be placed on the valve seat 31. The circular top 61 of the gas storage seat 6 forms a circular inner wall lip 64, and the top 61 expands an expansion wall 62 around, and on the expansion wall 62 is provided with a plurality of rivets arranged in a circle at intervals 63 , a groove 66 is formed between the rivet post 63 and the inner wall lip 64 . A circular top cover 51 is provided with a plurality of fully penetrated riveting holes 52 on the near outer circumference, and a cylindrical column 53 extends downward in the central section, and the cylindrical column 53 has a bottom edge 531 , a convex pressing portion 532 is further formed on the bottom edge 531 towards the center of the cylindrical column 53, as shown in FIG. 3 . An annular rubber gasket 95 can be placed in the aforementioned groove 66, and the rivet hole 52 of the aforementioned top cover 51 can be correspondingly combined with the rivet post 63 on the aforementioned augmented wall 62, and the top cover can be made 51 is quite firmly riveted and combined on the gas storage seat 6, there will be no problem of loosening. Please refer to Fig. 5 again, the bottom edge 531 of aforesaid cylinder column 53 can be extended length, when top cover 51 is riveted and combined on the expansion wall 62 at the top of air storage seat 6, the cylinder of this top cover 51 The bottom edge 531 of the column 53 can just cover the upper half of the aforementioned convex column 23 , so the compressed air can flow into the inner space 605 of the air storage seat 6 through the gap 25 between the convex columns 23 . In terms of action, when the piston body 15 reciprocates in the cylinder 2, the compressed air can push the valve seat 31 through the air hole 22 to compress the spring 32, so that the compressed air can pass through the aforementioned plurality of protrusions 23 to each other. The gap 25 between them enters the inner space 605 of the air storage seat 6, as shown in Fig. 3 and Fig. 4 . As shown in Figure 6, since the diameter D2 of the inner space 605 of the air storage seat 6 is greater than the diameter D1 of the inner cavity 29 of the cylinder 2, the pressure received by the piston body during reciprocating motion can be greatly reduced and thus Increase the pushing speed of the piston body and greatly increase the efficiency of air compression.

Please refer to Fig. 7 again, the cylindrical column 53 of the top cover 51 of the present invention can be formed into a so-called outer wall 534 according to the same design concept. The upper half of the protruding pillars 601 arranged in a circle form an inner cylinder wall 535 with a smaller diameter inside the outer cylinder wall 534, and a pressing portion 532 is still formed at the end of the inner cylinder wall 535. The pressing portion 532 The aforementioned spring 32 and valve seat 31 can still be suppressed, and a gap layer 533 can be formed between the inner cylinder wall 535 and the outer cylinder wall 534 . Such an implementation can also allow compressed air to flow through the gap 6011 between the bosses 601 (its function is the same as the gap 25 between two adjacent bosses 23 in FIG. 4 ) to flow to the inner space 605, and then pass through each manifold. 67, 68, 69 are connected to objects of different properties and functions.

Another different embodiment of the gas storage seat 6 of the present invention can be shown in FIGS. 51 are not completely in close contact so a gap 607 is formed, and the cylinder 603 forms a first hollow portion 6051 on its inner diameter, and another second hollow portion 6052 is formed on its outer diameter surface, the cylinder 603 A plurality of protrusions 609 are formed at the bottom of the first hollow portion 6051 at an appropriate distance, and a gap 608 is naturally formed between two adjacent protrusions 609, and these protrusions 609 form a circular alcove 602, the alcove 602 provides for placing the valve seat 31, so the compressed air can pass through the air hole 22 and then pass through the gap 608 to the first inner space 6051 of the cylinder 603, and then flow through the gap 607 above the top end 606 to the second inner space Part 6052, the compressed air can pass through each manifold 67, 68, 69 to the connected objects.

In the present invention, the reciprocating piston body 15 in the inner cavity 29 of the cylinder 2 can suck the air outside the air compressor into the compression chamber 26 in the cylinder 2 during the retreat stroke of the piston body 15, and can suck the air outside the air compressor into the compression chamber 26 in the cylinder 2 during the forward stroke. The air in the compression chamber 26 is compressed into the inner space 605 of the air storage seat 6 through the air hole 22 provided on the intermediate wall 20, wherein a valve seat 31 is provided on the air hole 22 as the inlet and outlet of the opening and closing air, but the present invention also An elastic reed 7 can be set at the air hole 22 as the opening and closing of the air. The elastic reed 7 can still be resisted by the pressing part 532 of the top cover 51 when it is opened. This method can effectively avoid the elastic reed 7 It is easy to form the lack of elastic fatigue under high-frequency movements, and its movement state can be shown in Figure 11 to Figure 12.

To sum up, the air compressor can be used to inflate items to be inflated. Therefore, if the inflation efficiency of the air compressor can be improved, it can not only shorten the time spent on inflation, but also prolong the service life of the air compressor. The diameter of the inner cavity of the air storage seat of the existing air compressor is smaller than the diameter of the inner cavity of the cylinder. This design makes the post or elastic reed suffer from a relatively large reaction pressure, thus causing the piston body to suffer during the forward stroke. The resistance also becomes larger, greatly reducing the compression efficiency of the piston body. In contrast to the present invention, the diameter D2 of the inner hollow portion 605 of the air storage seat 6 is greater than the diameter D1 of the inner cavity 29 of the cylinder 2, so that the pressure suffered by the piston body during reciprocating motion can be greatly reduced and the piston can be accelerated accordingly. The pushing speed of the body greatly increases the efficiency of air compression. Compared with the two, the structure of the present invention is not only different from the previous structure, but also more progressive in terms of use efficiency, and has sufficient industrial use value.

The above-mentioned embodiments and drawings do not limit the form and style of the product of the present invention, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims (10)

1. A kind of air compressor, it comprises a main frame body, and this main frame body connects a cylinder that can be operated by piston body, and fixes a power mechanism that includes motor on it, and a weight rotating disc with crank tip Set on the main frame body, the crank tip is pivotally connected to the piston body. When the motor is activated, the crank tip is driven to perform circular motion, and the piston head of the piston body is driven to reciprocate in the cylinder so that the compressed air in the cylinder is pushed into the air In the air storage seat of the compressor, it is characterized in that, adjacent to the cylinder and directly extending from the cylinder body, there is an air storage seat whose inner hollow part has a diameter larger than the inner cavity diameter of the cylinder, and the circular top of the air storage seat forms a A circular inner wall lip, the top of which expands to the surrounding wall with a plurality of rivet posts arranged in a circle at intervals, forming a groove between the rivet posts and the inner wall lip; The air compressor also includes a circular top cover, which is provided with a plurality of fully penetrated riveting holes near the outer circumference, and a cylindrical column extends downwards in the central section, and the riveting holes of the top cover are combined correspondingly. On the rivets on the aforesaid expansion wall, and by processing the punching machine, the top cover is quite firmly riveted and combined on the air storage seat. 2. An air compressor as claimed in claim 1, characterized in that the air storage seat is adjacent to the top wall of the cylinder at the bottom and forms a shared middle wall. 3. A kind of air compressor as claimed in claim 2, it is characterized in that, this intermediate wall is provided with an air hole, and this air hole allows the compression chamber of the inner cavity of the cylinder to communicate with the inner space of the air storage seat, and the surrounding of the air hole The intermediate wall is provided with a plurality of protruding posts spaced apart and arranged in a ring shape, and gaps are formed between the protruding posts. 4. A kind of air compressor as claimed in claim 3, it is characterized in that, this air compressor also comprises a valve seat and a spring, and this valve seat is placed on the aforesaid plurality of protrusions arranged in a ring at intervals. In the inner room enclosed by the pillars, the spring is placed on the valve seat. 5. A kind of air compressor as claimed in claim 2, it is characterized in that, this air compressor also comprises an elastic reed, and this elastic reed is arranged at the air hole on the aforementioned middle wall to open and close air in and out. 6. An air compressor as claimed in claim 5, wherein the elastic reed can still be resisted by the pressing portion of the top cover when it is opened. 7 . The air compressor according to claim 4 , wherein the cylindrical column is provided with a convex pressing portion, and the convex pressing portion is against the spring and the valve seat. 8 . 8. An air compressor as claimed in claim 4, wherein the cylindrical column has a bottom edge, and a convex pressing part is formed on the bottom edge toward the center of the cylindrical column, and the convex The pressing part of the top cover is against the aforementioned spring and valve seat; while the bottom edge of the cylindrical column of the top cover is covered on the upper half of the aforementioned convex column, and the compressed air flows into the air storage seat through the gap between the convex columns. inside the inner space. 9. An air compressor as claimed in claim 4, characterized in that, the top cover is provided with an outer wall, and the outer wall fits over a plurality of protruding pillars arranged at intervals in a ring shape. In the half section, an inner cylinder wall with a smaller diameter is formed inside the outer cylinder wall, and a pressing part is formed at the end of the inner cylinder wall, and the pressing part compresses the aforementioned spring and valve seat, and the inner cylinder wall and the outer layer A gap layer is formed between the cylinder walls. 10. An air compressor according to claim 1, characterized in that, the air storage seat is formed with a cylinder extending upward around the air hole of the middle wall, and a cylinder is formed between the top end of the cylinder and the top cover. gap, and the cylinder forms a first hollow part on its inner diameter part, and another second hollow part is formed on its outer diameter surface, and the cylinder forms several spaced apart Protrusions with a proper distance, a gap is naturally formed between two adjacent protrusions, the protrusions form a circular recess, the recess provides the valve seat and spring, so the compressed air passes through the air hole and then passes through the gap to the The first hollow part of the cylinder flows to the second hollow part through the gap above the top end, and the compressed air passes through each manifold to the connected objects.