CN218717357U

CN218717357U - Air valve block air inlet structure of air compressor

Info

Publication number: CN218717357U
Application number: CN202222994763.5U
Authority: CN
Inventors: 杨明海
Original assignee: Shaoxing Haoxin Electric Co ltd
Current assignee: Shaoxing Haoxin Electric Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses an air valve piece inlet structure of air compressor machine, including connecting rod, cylinder, air valve piece and cylinder head, the air valve piece on be provided with the inlet port, the air valve piece on be provided with the removal post that can move about and can automatic re-setting in inlet port department, removal post on the cover be equipped with inlet port matched with rubber seal ring. The utility model has the advantages that: the air valve block is simple and reasonable in structure, the air inlet is opened and closed by moving the movable column up and down on the air valve block, and sealing is realized by matching the rubber sealing ring with the air inlet, so that the displacement of the sealing element is avoided in the using process, the failure rate of the air compressor can be greatly reduced, and the service life of the air compressor is prolonged; the rubber sealing ring is adopted, so that when the rubber sealing ring impacts the air valve block, the noise during operation can be greatly reduced.

Description

Air valve block air inlet structure of air compressor

Technical Field

The utility model belongs to the technical field of the air compressor machine manufacturing technology and specifically relates to indicate an air valve piece inlet structure of air compressor machine.

Background

An air compressor (i.e., an air compressor) is a main body of an air source device, and is a device for converting mechanical energy of a prime mover (usually, an electric motor) into gas pressure energy, and is an air pressure generating device for compressing air. When the air compressor works, the connecting rod is driven by the power device to do reciprocating motion in the air cylinder, and then the circulation of air inlet and air outlet is completed.

As shown in fig. 9 to 10, a connecting rod air inlet structure of an existing air compressor mainly includes a connecting rod 1', an air cylinder 2', an air valve block 3' and an air cylinder cover 4', wherein the air valve block 3' is arranged between the air cylinder 2' and the air cylinder cover 4', an air inlet valve block 8' is arranged at an air inlet of the air valve block 3', one end of the air inlet valve block 8' is fixed by a screw, the other end is free, the air inlet valve block 8' is made of a stainless steel material, and when the connecting rod 1' moves down to admit air, the air inlet valve block 8' moves down by elasticity, so that the air inlet is opened to complete air admission; however, because the connecting rod of the air compressor is in a high-frequency working state, along with the increase of the working time of the air compressor, the air inlet valve sheet 8' is easy to break and shift (because the air inlet valve sheet 8' is only fixed at one end, the air inlet valve sheet 8' is easy to rotate, and the free end is deviated from the air inlet), and the like, which are important reasons for high failure rate of the air compressor, even cause the air compressor to lose functions, and in addition, the problems of poor sealing performance and high working noise exist, so the structure of the air compressor is required to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem that to prior art's current situation, provide simple structure, reasonable, the noise is little, and the fault rate is low, long service life's an air valve piece inlet structure of air compressor machine.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the air valve block air inlet structure of the air compressor comprises a connecting rod, an air cylinder, an air valve block and an air cylinder cover, wherein an air inlet hole is formed in the air valve block, a movable column capable of moving up and down and capable of automatically resetting is arranged at the air inlet hole in the air valve block, and a rubber sealing ring matched with the air inlet hole is sleeved on the movable column.

The optimized technical measures further comprise:

as an improvement, the air valve block is provided with a guide post, the movable post penetrates through the guide post, and the air inlet is arranged on the periphery of the guide post. The guide post is arranged, so that the moving track of the moving post can be guaranteed, and the moving stability of the moving post is improved.

As an improvement, the lower extreme of removal post be provided with the supporting part, the upper end of removal post be provided with the mounting, the mounting on the cover be equipped with flat pad and sealed the pad, sealed pad with be provided with the elasticity piece that resets between the valve block. The two ends of the movable column are limited by the supporting part and the flat pad respectively, automatic reset is realized by the elastic reset piece, the structure is simple, the operation is reliable, the supporting part provides supporting force for the rubber sealing ring, and the sealing effect is better.

As an improvement, the upper surface of the rubber sealing ring is provided with an outer convex rib and an inner convex rib, the outer convex rib is positioned on the outer side of the air inlet hole, and the inner convex rib is positioned on the inner side of the air inlet hole. The arrangement of the outer convex ribs and the inner convex ribs can improve the sealing performance of the rubber sealing ring.

As an improvement, the air inlet holes are waist-shaped holes. The air inlet holes are designed to be waist-shaped holes, so that the ventilation capacity can be increased.

As an improvement, the lower end of the moving column is provided with an inner hexagonal groove. And an inner hexagonal groove is arranged, so that the installation is convenient.

As an improvement, a lug matched with the inner hexagonal groove is arranged on the connecting rod. The setting of lug can extrude the air in the interior hexagonal groove, reduces air residue, improves the work efficiency of air compressor machine.

The utility model relates to an air valve block air inlet structure of an air compressor, which has simple and reasonable structure, realizes the opening and closing of an air inlet hole by the up-and-down movement of a moving column on the air valve block, realizes the sealing by the matching of a rubber sealing ring and the air inlet hole, avoids the displacement of a sealing element in the using process, can greatly reduce the failure rate of the air compressor, and improves the service life of the air compressor; adopt rubber seal ring, when it strikes the air valve piece, noise when can reduce the operation greatly has also solved among the prior art because of the fracture of stainless steel valve block causes the problem that the air compressor machine became invalid.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an exploded schematic view of an embodiment of the invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

FIG. 6 is a schematic view of the rubber seal ring of FIG. 4;

FIG. 7 is a schematic view of the structure of the moving column of FIG. 4;

FIG. 8 is a schematic view of the gasket of FIG. 4;

FIG. 9 is a schematic cross-sectional view of a venting structure of a connecting rod in the prior art;

fig. 10 is an exploded view of a prior art venting structure of a connecting rod.

Wherein the reference numerals are: the air valve comprises a connecting rod 1, a convex block 1a, an air cylinder 2, an air valve block 3, an air inlet hole 3a, a guide column 31, a cylinder cover 4, a moving column 5, an inner hexagonal groove 5a, a supporting part 51, a rubber sealing ring 6, an outer convex rib 61, an inner convex rib 62, a fixing piece 71, a flat gasket 72, a sealing gasket 73 and an elastic resetting piece 74.

Reference numbers in the prior art: connecting rod 1', cylinder 2', valve block 3', cylinder head 4' and air inlet valve plate 8'.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 8, an air valve block air inlet structure of an air compressor comprises a connecting rod 1, an air cylinder 2, an air valve block 3 and an air cylinder cover 4, wherein an air inlet hole 3a is formed in the air valve block 3, a movable column 5 which can move up and down and can automatically reset is arranged at the air inlet hole 3a on the air valve block 3, and a rubber sealing ring 6 matched with the air inlet hole 3a is sleeved on the movable column 5.

In this embodiment, the air valve block 3 is provided with two sets of air inlets 3a, and correspondingly, the number of the movable columns 5 and the number of the rubber sealing rings 6 are both two.

The air valve block 3 is provided with a guide column 31, the movable column 5 penetrates through the guide column 31, and the air inlet 3a is arranged on the periphery of the guide column 31. The guide post 31 can ensure the moving track of the moving post 5 and improve the stability of the movement of the moving post 5.

The lower extreme of removal post 5 be provided with supporting part 51, the upper end of removal post 5 be provided with mounting 71, mounting 71 on the cover be equipped with flat pad 72 and sealed pad 73, sealed pad 73 with be provided with elasticity reset 74 between the valve piece 3. The fixing member 71 is preferably a screw, and the elastic restoring member 74 is preferably a spring. The support portion 51 and the flat pad 72 limit the stroke of the movable column 5.

As shown in fig. 8, the section of the sealing gasket 73 is in a convex structure, so that the elastic resetting piece 74 can be conveniently assembled, and due to the arrangement of the sealing gasket 73, the impact noise caused by the movement of the movable column 5 can be reduced, and the noise generated when the air compressor operates can be reduced.

The upper surface of the rubber sealing ring 6 is provided with an outer convex rib 61 and an inner convex rib 62, the outer convex rib 61 is positioned on the outer side of the air inlet hole 3a, and the inner convex rib 62 is positioned on the inner side of the air inlet hole 3 a. The contact area of the rubber sealing ring 6 and the surface of the air valve block 3 is reduced by the outer convex rib 61 and the inner convex rib 62, the processing requirement of a contact plane is reduced, and the sealing performance can be improved by the design.

In this embodiment, the air inlet 3a be waist type hole, waist type hole is bigger than the circular port air flow, is favorable to the promotion of air input.

The lower end of the movable column 5 is provided with an inner hexagonal groove 5a.

The connecting rod 1 is provided with a convex block 1a matched with the inner hexagonal groove 5a.

During assembly, the rubber sealing ring 6 is sleeved on the movable column 5, the outer convex rib 61 and the inner convex rib 62 face the air inlet 3a, the movable column 5 is inserted into the guide column 31 from bottom to top, and after the elastic reset piece 74 (spring), the sealing pad 73 and the flat pad 72 are sequentially sleeved on the movable column, the movable column is fixed by the fixing piece 71 (screw). Since the moving post 5 is small in size, it is not easy to hold it by hand when fixing the upper fixing member 71, and it is easy to rotate when tightening the screw, and when mounting, it is possible to insert a socket wrench into the socket 5a to prevent it from rotating, thereby improving the assembling efficiency. And the setting of hexagon socket head cap groove 5a can increase the air residue, increases compression resistance, consequently sets up lug 1a, utilizes lug 1a to extrude the interior air of hexagon socket head cap groove 5a to reduce the air residue, reduce compression resistance, improve the work efficiency of air compressor machine.

The working principle is as follows:

when the connecting rod 1 moves downwards, the moving column 5 overcomes the elasticity of the elastic reset piece 74 (spring) to move downwards, the rubber sealing ring 6 is separated from the air valve block 3, the air inlet hole 3a is opened, and air inlet is completed; after the air intake is completed, the movable column 5 is reset by the elastic force of the elastic reset piece 74 (spring), and the rubber sealing ring 6 closes the air intake hole 3 a. The utility model discloses a remove the motion that post 5 drove rubber seal ring 6 to realize inlet port 3 a's switching, simple structure, it is reliable, avoided rubber seal ring 6 to appear shifting and the sealed inefficacy that leads to, can the greatly reduced fault rate, reduce the maintenance cost. In addition, the rubber sealing ring 6 is adopted, so that the noise caused by the impact of the sealing element can be greatly reduced when the air compressor works.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the invention have been shown and described in the embodiments, and any variations or modifications of the embodiments of the invention are possible without departing from the principles.

Claims

1. The utility model provides an air valve piece inlet structure of air compressor machine, including connecting rod (1), cylinder (2), air valve piece (3) and cylinder head (4), air valve piece (3) on be provided with inlet port (3 a), characterized by: the air valve block (3) is provided with a movable column (5) which can move up and down and can automatically reset at the air inlet hole (3 a), and the movable column (5) is sleeved with a rubber sealing ring (6) matched with the air inlet hole (3 a).

2. The air valve block air intake structure of the air compressor as claimed in claim 1, wherein: the air valve block (3) is provided with a guide column (31), the movable column (5) penetrates into the guide column (31), and the air inlet holes (3 a) are formed in the periphery of the guide column (31).

3. The air valve block air intake structure of the air compressor as claimed in claim 2, wherein: the lower extreme of removal post (5) be provided with supporting part (51), the upper end of removal post (5) be provided with mounting (71), mounting (71) go up the cover and be equipped with flat pad (72) and sealed pad (73), sealed pad (73) with be provided with elasticity reset piece (74) between valve block (3).

4. The air valve block air intake structure of the air compressor as claimed in claim 3, wherein: the upper surface of the rubber sealing ring (6) is provided with an outer convex rib (61) and an inner convex rib (62), the outer convex rib (61) is positioned on the outer side of the air inlet hole (3 a), and the inner convex rib (62) is positioned on the inner side of the air inlet hole (3 a).

5. The air valve block air intake structure of the air compressor as claimed in claim 4, wherein: the air inlet holes (3 a) are waist-shaped holes.

6. The air valve block air inlet structure of the air compressor as claimed in claim 5, wherein: the lower end of the movable column (5) is provided with an inner hexagonal groove (5 a).

7. The air valve block air intake structure of the air compressor as claimed in claim 6, wherein: the connecting rod (1) is provided with a convex block (1 a) matched with the inner hexagonal groove (5 a).