CN218376787U

CN218376787U - Air inlet mechanism and piston integrated structure

Info

Publication number: CN218376787U
Application number: CN202222353774.5U
Authority: CN
Inventors: 罗忠福; 何锋; 杨镇; 胡耀宗
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-24
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a mechanism and piston integrated structure admit air, connecting rod including T type structure, the one end that the connecting rod was provided with the end cover is provided with the outer end and is the open-ended chamber that admits air, the pole of connecting rod is provided with the inlet port that communicates with the chamber that admits air on one's body, the leather cup that is provided with the loop configuration is hugged closely on connecting rod end cover surface, the other end of leather cup is provided with the clamp plate, the end cover fixed connection of clamp plate and connecting rod, be provided with on the clamp plate with the exhaust hole that admits air the chamber and communicate, another terminal surface of clamp plate is fixed with the elasticity valve block, the exit end in exhaust hole is sheltered from to the elasticity valve block. The utility model discloses after being a whole with air intake mechanism and piston design, the compression pump volume reduces, has reduced the use of material, has also reduced the noise that produces when admitting air simultaneously, can be applied to the use scene that has the requirement to the noise, has improved the range of application.

Description

Air inlet mechanism and piston integrated structure

Technical Field

The utility model relates to a mechanism and piston integral structure admit air belongs to piston compression pump technical field.

Background

With the development of light weight, many mechanisms need to be reduced in size, which relates to integration of the mechanisms, for example, in a traditional piston type compression pump, an air inlet mechanism and an air outlet mechanism are always separately designed outside a cylinder body, and the design outside the cylinder body has two disadvantages, and for light weight, a certain space needs to be left for the air inlet mechanism and the air outlet mechanism so as to facilitate the convenience of air inlet and air outlet of the compression pump during operation, but the design increases the size of the whole compression pump. Meanwhile, in the aspect of air intake and exhaust of the compression pump, due to the fact that the pressure and the air intake channel are long, large noise can be generated, and the compression pump is not beneficial to use.

Disclosure of Invention

An object of the utility model is to provide an air inlet mechanism and piston integrated structure. The piston of piston type compression pump is improved mainly for the purpose of simplifying the mechanism of the whole piston type compression pump and reducing the noise generated during air intake and exhaust.

The technical scheme of the utility model: the utility model provides an inlet mechanism and piston integral structure, connecting rod including T type structure, the one end that the connecting rod was provided with the end cover is provided with the outer end and is the open-ended chamber that admits air, the pole body of connecting rod is provided with the inlet port with admit air the chamber intercommunication, the leather cup that is provided with annular structure is hugged closely on connecting rod end cover surface, the other end of leather cup is provided with the clamp plate, the clamp plate is connected with the end cover fixed connection of connecting rod, be provided with the exhaust hole with the chamber intercommunication that admits air on the clamp plate, another terminal surface of clamp plate is fixed with the elasticity valve block, the exit end in exhaust hole is sheltered from to the elasticity valve block.

In the aforementioned integrated structure of the air inlet mechanism and the piston, a plurality of fixed blocks are arranged on the inner wall of the air inlet cavity in an array manner, a fixed screw hole is formed in each fixed block, a penetrating hole corresponding to the fixed screw hole is formed in the pressure plate, and the cross recessed countersunk head screw penetrates through the penetrating hole and then extends into the fixed screw hole, so that the pressure plate and the end cover of the connecting rod are fixed together, and the leather cup is tightly pressed and fixed.

In the integrated structure of the air inlet mechanism and the piston, the thread counter bore is formed in the middle of the pressing plate, the air inlet valve pressing block capable of extending into the thread counter bore is arranged on the end face, deviating from the leather cup, of the pressing plate, and the cross groove countersunk head screw penetrates through the air inlet valve pressing block and the elastic valve block and then extends into the thread counter bore, so that the elastic valve block is fixed.

In the integrated structure of the air inlet mechanism and the piston, the bowl opening of the leather bowl faces the direction of the pressing plate, and the pressing plate is sunk into the leather bowl.

In the air inlet mechanism and piston integrated structure, the end face of the pressing plate, facing the elastic valve block, is provided with an annular sunken groove, the exhaust hole is formed in the pressing plate inside the annular sunken groove, and the size of the elastic valve block is matched with that of the annular sunken groove.

The utility model has the advantages that: compared with the prior art, the utility model discloses mainly constitute by elastic valve block, clamp plate, leather cup and connecting rod, through be provided with the inlet port on the connecting rod and admit air the chamber, be provided with the exhaust hole on the clamp plate to shelter from the exhaust hole through elastic valve block, thereby become a mechanism with the piston design of admitting air mechanism, in the space, reduced the space of mechanism of admitting air. In terms of noise, because the piston and the inner wall of the cylinder are always in a friction state, large noise can be generated, the air inlet mechanism is arranged in the cylinder, the air inlet mechanism and the piston move simultaneously, the length of an air inlet pipeline cannot be changed due to the movement of the piston, and therefore the noise generated when the air inlet mechanism is used for air inlet is small compared with the noise generated when the air inlet mechanism is arranged outside the cylinder.

In summary, after the air inlet mechanism and the piston are designed into a whole, the volume of the compression pump is reduced, the use of materials is reduced, and meanwhile, the noise generated during air inlet is also reduced, so that the compression pump can be applied to a use scene with requirements on noise, and the application range is improved.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an exploded view of the part of FIG. 1;

FIG. 3 is a schematic view of the platen;

fig. 4 is a schematic structural view of the connecting rod.

Reference numerals: 1-a cross-shaped groove countersunk head screw, 2-an air inlet valve compression block, 3-an elastic valve plate, 4-a pressing plate, 5-a leather cup, 6-a connecting rod, 7-an air inlet hole, 8-an air inlet cavity, 9-an exhaust hole, 10-a fixing block, 11-a fixing screw hole, 12-a penetrating hole and 13-a thread counter bore.

Detailed Description

The present invention will be further described with reference to the drawings and examples, which should not be construed as a limitation to the present invention.

The embodiment of the utility model provides a: an air inlet mechanism and piston integrated structure is shown in figures 1-4 and comprises 1 connecting rod 6 with a T-shaped structure, an air inlet cavity 8 with an opening at the outer end is arranged at one end of the connecting rod 6 provided with an end cover, an air inlet hole 7 communicated with the air inlet cavity 8 is arranged on the rod body of the connecting rod 6, a leather cup 5 with an annular structure is tightly attached to the surface of the end cover of the connecting rod 6, a pressing plate 4 is arranged at the other end of the leather cup 5, the size of the leather cup 5 is larger than that of the end covers of the pressing plate 4 and the connecting rod 6, the pressing plate 4 is fixedly connected with the end cover of the connecting rod 6, and the leather cup 5 is fixedly pressed through the pressing plate 4. The pressure plate 4 is provided with an exhaust hole 9 communicated with the air inlet cavity 8, the other end face of the pressure plate 4 is fixed with an elastic valve plate 3, and the outlet end of the exhaust hole 9 is shielded by the elastic valve plate 3.

The utility model discloses constitute by elastic valve block 3, clamp plate 4, leather cup 5 and connecting rod 6, through be provided with inlet port 7 and admit air chamber 8 on connecting rod 6, be provided with exhaust hole 9 on clamp plate 4 to shelter from exhaust hole 9 through elastic valve block 3, thereby become a mechanism with the piston design with the mechanism of admitting air.

The array is provided with a plurality of fixed blocks 10 on the inner wall of air inlet chamber 8, all is provided with 1 fixed screw 11 on every fixed block 10, is provided with the hole 12 of wearing that corresponds with fixed screw 11 position on the clamp plate 4, and cross recess countersunk screw 1 passes and stretches into to fixed screw 11 behind the hole 12 of wearing to it is together fixed with the end cover of clamp plate 4 and connecting rod 6, and compress tightly fixedly with leather cup 5. The pressing plate 4, the leather cup 5 and the connecting rod 6 are quickly installed through the structure, and the dismounting is also convenient.

The middle position of clamp plate 4 is provided with screw thread counter bore 13, and the terminal surface that clamp plate 4 deviates from leather cup 5 is provided with can stretch into to the intake valve compact heap 2 of screw thread counter bore 13, and cross recess countersunk screw 1 passes and stretches into behind the hole of wearing on intake valve compact heap 2 and the elastic valve piece 3 in the screw thread counter bore 13 to fix elastic valve piece 3. The structure realizes the quick installation of the elastic valve plate 3 and the pressing plate 4, and the disassembly is also more convenient.

The bowl mouth of leather cup 5 is towards 4 directions of clamp plate, and clamp plate 4 sinks to leather cup 5 in, struts leather cup 5 completely through clamp plate 4, guarantees that leather cup 5 and cylinder body contact are good, avoids appearing gaseous leakage.

The terminal surface of clamp plate 4 orientation elastic valve block 3 is provided with the heavy groove of annular, and exhaust hole 9 sets up on the clamp plate 4 of the heavy inslot portion of annular, and the heavy groove size phase-match of elastic valve block 3 size and annular makes elastic valve block 3 can shelter from exhaust hole 9 is sealed well, avoids appearing gas leakage phenomenon.

The piston is not changed, the interior of the piston is solid, the interior of the originally solid piston needs to be designed to be hollow in order to realize the integration of the air inlet mechanism and the piston, an air inlet channel is arranged in the piston, namely the air inlet cavity 8, and an air inlet 7 is arranged at the connecting rod 6 and is connected with the interior of the air inlet cavity 8. The head of the piston consists of an air inlet valve pressing block 2, an elastic valve plate 3, a pressing plate 4 and a leather cup 5. The cross-shaped groove countersunk head screw 1 is matched with a threaded countersunk hole 13 on the pressing plate 4 and a fixed screw hole 11 on the connecting rod 6, and the air inlet valve pressing block 2, the elastic valve plate 3, the pressing plate 4 and the leather cup 5 are sequentially fixed at the head of the connecting rod 6.

When the piston moves, the piston can swing slightly due to the eccentric motion of the driving element, so that the leather cup 5 is used for preventing the gas in the cylinder from leaking when the piston head is not in complete contact with the inner wall of the cylinder. After the air inlet mechanism and the piston are designed into a whole, the piston head is reduced in pressure along with the gradual increase of the volume of a working chamber in the cylinder in the return process, when the pressure is smaller than the air pressure at the exhaust hole 9, the air inlet elastic valve plate 3 is pushed open by the air pressure under the action of pressure difference, and the air in the external environment enters the air inlet cavity 8 from the air inlet hole 7 and then enters the cylinder through the exhaust hole 9; the process is opposite to the return stroke, when the piston is in the process and the air pressure of the air in the cylinder is larger than that of the exhaust hole 9, the elastic valve plate 3 completely shields the exhaust hole 9 by the pressure difference, so that the exhaust hole 9 is in a closed state.

Claims

1. The utility model provides an air inlet mechanism and piston integral structure which characterized in that: the connecting rod (6) with the T-shaped structure is included, one end, provided with an end cover, of the connecting rod (6) is provided with an air inlet cavity (8) with an outer end provided with an opening, an air inlet hole (7) communicated with the air inlet cavity (8) is formed in the rod body of the connecting rod (6), a leather cup (5) with an annular structure is tightly attached to the surface of the end cover of the connecting rod (6), a pressing plate (4) is arranged at the other end of the leather cup (5), the pressing plate (4) is fixedly connected with the end cover of the connecting rod (6), an air exhaust hole (9) communicated with the air inlet cavity (8) is formed in the pressing plate (4), an elastic valve block (3) is fixed to the other end face of the pressing plate (4), and the outlet end of the exhaust hole (9) is shielded by the elastic valve block (3).

2. The integrated structure of an air intake mechanism and a piston as set forth in claim 1, wherein: the air inlet cavity is characterized in that a plurality of fixing blocks (10) are arranged on the inner wall of the air inlet cavity (8) in an array mode, a fixing screw hole (11) is formed in each fixing block (10), a penetrating hole (12) corresponding to the fixing screw hole (11) in position is formed in the pressing plate (4), a cross-shaped groove countersunk head screw (1) penetrates through the penetrating hole (12) and then extends into the fixing screw hole (11), and therefore the pressing plate (4) and an end cover of the connecting rod (6) are fixed together and the leather cup (5) is pressed and fixed.

3. The integrated structure of an air intake mechanism and a piston as set forth in claim 1, wherein: the middle position of clamp plate (4) is provided with screw thread counter bore (13), and the terminal surface that clamp plate (4) deviates from leather cup (5) is provided with can stretch into admission valve compact heap (2) to screw thread counter bore (13), and cross recess countersunk screw (1) passes and stretches into behind admission valve compact heap (2) and elastic valve piece (3) in screw thread counter bore (13) to fix elastic valve piece (3).

4. The integrated structure of an air intake mechanism and a piston as set forth in claim 1, wherein: the opening of the leather cup (5) faces the direction of the pressing plate (4), and the pressing plate (4) sinks into the leather cup (5).

5. The integrated structure of an air intake mechanism and a piston as set forth in claim 1, wherein: the end face of the pressing plate (4) facing the elastic valve block (3) is provided with an annular sinking groove, the exhaust holes (9) are formed in the pressing plate (4) inside the annular sinking groove, and the size of the elastic valve block (3) is matched with that of the annular sinking groove.