CN211205677U

CN211205677U - Air compressor machine air pump valve plate leakproofness check out test set

Info

Publication number: CN211205677U
Application number: CN201922273098.9U
Authority: CN
Inventors: 冯正鹏; 杨跃勇
Original assignee: Bulangke Automotive Brake System Zhenjiang Co ltd
Current assignee: Bulangke Automotive Brake System Zhenjiang Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-07
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a device for detecting the sealing performance of an air pump valve plate of an air compressor, which comprises a shell, an air pump valve plate and a valve seat, wherein the shell is provided with an inner cavity, and one end of the inner cavity is communicated with the outside; the piston is arranged in the inner cavity of the shell and can reciprocate along one end of the shell; the air tightness detection device comprises a cover body, a plurality of partition plates and a plurality of air tightness detection devices, wherein one end of the cover body is provided with an opening, the opening of the cover body is divided into a first opening, a second opening and a third opening by the partition plates, and in the air tightness detection process, one end of the cover body is in close contact with one end of a shell so that the first opening, the second opening and the third opening are connected with the shell to form a seal; the first air pressure sensor, the second air pressure sensor and the third air pressure sensor are respectively used for measuring the air pressure value in the corresponding open port. The utility model provides a pair of air compressor machine air pump valve plate leakproofness check out test set can detect the leakproofness between valve block and the valve plate of admitting air and the valve block of giving vent to anger to and the leakproofness between valve plate and the cylinder body, guarantees the work efficiency of air compressor machine, avoids the air compressor machine inefficacy.

Description

Air compressor machine air pump valve plate leakproofness check out test set

Technical Field

The utility model relates to a leakproofness detects technical field, concretely relates to air compressor machine air pump valve plate leakproofness check out test set.

Background

Air compressors are devices for compressing gas, and most air compressors are of the reciprocating piston type. The reciprocating piston type air compressor realizes the suction and discharge of air through the cylinder body, the valve plate, and the air inlet valve plate and the air outlet valve plate on the valve plate. In the air suction stage, the piston in the cylinder body moves downwards, the volume between the piston and the cylinder body is increased, the air pressure is reduced, and the outside air pushes the air inlet valve to enter the cylinder body; in the air outlet stage, the piston in the cylinder body moves upwards, the volume between the piston and the cylinder body is reduced, the gas in the cylinder body is compressed, the pressure is increased, and when the gas pressure reaches a certain value, the air in the cylinder body pushes the air outlet valve plate away to be discharged out of the cylinder body.

However, if the air inlet valve plate and the air outlet valve plate are not sealed well or the valve plate and the cylinder body are not sealed well, the air suction stage and the air outlet stage of the air compressor are greatly affected, so that the working efficiency of the air compressor is reduced, and even the air compressor fails in severe cases.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an air compressor machine air pump valve plate leakproofness check out test set makes it can detect the leakproofness between air inlet valve piece and the air outlet valve piece and the valve plate to and the leakproofness between valve plate and the cylinder body, thereby guarantee the work efficiency of air compressor machine, avoid the air compressor machine inefficacy.

In order to achieve the above purpose, the present invention is implemented by the following technical solutions: the utility model provides an air compressor machine air pump valve plate leakproofness check out test set, includes:

the air pump valve plate is detachably connected with one end of the shell;

a piston disposed in the inner cavity of the housing and reciprocally movable along the one end of the housing, the piston being held in close contact with the housing while reciprocally moving;

the air tightness detection device comprises a cover body, wherein one end of the cover body is provided with an opening, a plurality of partition plates are arranged in the cover body, the opening of the cover body is divided into a first opening, a second opening and a third opening by the partition plates, in the air tightness detection process, one end of the cover body is in close contact with one end of a shell, so that the first opening, the second opening and the third opening are connected with the shell to form a seal, and the first opening and the second opening can respectively cover an air inlet valve plate and an air outlet valve plate on an air pump valve plate;

first atmospheric pressure sensor, second atmospheric pressure sensor and third atmospheric pressure sensor all set up on the lid, in the gas tightness testing process, be used for measuring respectively first uncovered, the second uncovered with the uncovered intraoral gas pressure value of third, first atmospheric pressure sensor second atmospheric pressure sensor with third atmospheric pressure sensor all is connected with external control ware electricity.

Further, the one end of casing is the upper end, the lid sets up along transversely the top of casing.

Further, a plurality of sealing elements are arranged on the lower surface of the cover body, and in the sealing performance detection process, the sealing elements are used for sealing the connection between the cover body and the shell.

The utility model has the advantages that: the utility model provides a pair of air compressor machine air pump valve plate leakproofness check out test set when the leakproofness detects, earlier with the one end fixed connection of air pump valve plate and casing, then with lid and casing one end sealing connection. When the piston reciprocates, the first air pressure sensor and the second air pressure sensor are respectively used for detecting air pressure numerical values in the first opening and the second opening, and whether the air inlet valve plate and the air outlet valve plate are qualified or not is judged through the analysis of the numerical values. The third air pressure sensor is used for detecting an air pressure value in the third open port, the shell and the cylinder body are identical in specification, and whether the sealing performance of the air pump valve plate and the cylinder body is qualified or not is judged through numerical value analysis. Thereby guaranteed the work efficiency of air compressor machine, avoided the air compressor machine inefficacy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the cover;

fig. 3 is a block diagram illustrating the flow of the present invention.

Reference numerals: 10-shell, 11-inner cavity, 20-air pump valve plate, 21-air inlet valve plate, 22-air outlet valve plate, 30-piston, 40-cover, 41-first air pressure sensor, 42-second air pressure sensor, 43-third air pressure sensor, 50-partition plate, 51-first opening, 52-second opening, 53-third opening, 54-sealing element and 60-sealing groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In this application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-3, the utility model provides an air compressor machine air pump valve plate leakproofness check out test set, include: a housing 10, a piston 30, a cover 40, and a pressure sensor.

Because air pump valve plate 20 is in during operation and cylinder body cooperation, consequently the utility model discloses in be used for detecting the specification of casing 10 of leakproofness the same with the standard cylinder body. The housing 10 has an inner cavity 11, the inner cavity 11 communicates with the outside at one end of the housing 10, and the air pump valve plate 20 is detachably connected to the one end of the housing 10. When the air pump valve plate 20 needs to be subjected to tightness detection, a worker fixes the air pump valve plate 20 at the one end of the shell 10, and the next air pump valve plate 20 is replaced after the detection is finished. The piston 30 is disposed in the inner cavity 11 of the housing 10 and is reciprocally movable along the one end of the housing 10, and the piston 30 is held in close contact with the inner wall of the housing 10 while being reciprocally moved.

The cover body 40 is provided with an opening at one end thereof and a plurality of partitions 50 are provided therein, and the opening of the cover body 40 is divided into a first opening 51, a second opening 52 and a third opening 53 by the plurality of partitions 50. During the airtightness detection, the one end of the cover 40 is in close contact with the one end of the casing 10, so that the first opening 51, the second opening 52 and the third opening 53 are connected to the casing 10 to form a hermetic seal. When the cover 40 is in close contact with the housing 10, the first opening 51 and the second opening 52 can cover the inlet valve sheet 21 and the outlet valve sheet 22 on the air pump valve plate 20, respectively.

In the process of detecting the sealing performance, when the piston 30 moves to the end away from the housing 10, the air intake stage is performed, the volume between the housing 10 and the piston 30 becomes larger, the air pressure becomes smaller, and the air in the first opening 51 pushes the air intake valve to enter the housing 10; when the piston 30 moves towards the one end of the housing 10, the air outlet stage is formed, the volume between the housing 10 and the piston 30 is reduced, the air pressure is increased, and the air in the housing 10 pushes the air outlet valve plate to enter the second opening 52.

The air pressure sensor comprises a first air pressure sensor 41, a second air pressure sensor 42 and a third air pressure sensor 43, and the three air pressure sensors are all arranged on the cover body 40 and are respectively used for measuring air pressure values in the first opening 51, the second opening 52 and the third opening 53 in the air tightness detection process. The first, second, and third

air pressure sensors

41, 42, and 43 are all electrically connected to an external controller.

In the air inlet stage, if the air pressure change value in the second opening 52 is lower than the standard threshold, the controller judges that the sealing property of the air valve is qualified, otherwise, the air valve is unqualified; if the air pressure change value in the third opening 53 is lower than the standard threshold value, the controller judges that the sealing property of the air pump valve plate 20 and the shell 10 is qualified, otherwise, the sealing property is unqualified; in the air outlet stage, if the air pressure variation value in the first opening 51 is lower than the standard threshold, the controller judges that the air inlet valve is qualified in sealing performance, otherwise, the air inlet valve is unqualified. The tightness of the valve plate 20 of the air pump can be determined by one reciprocating motion of the piston 30, but in practice, the air pressure can be determined by taking the average value of the air pressure through a plurality of experiments for accuracy.

In one embodiment, the housing 10 is disposed in a longitudinal direction, the one end of which is an upper end, and the cover 40 is disposed above the housing 10 in a transverse direction. The longitudinally arranged shell 10 is convenient for the actual operation of workers, and when the tightness is detected, the workers can control the cover body 40 to lift through the controller, so that the operation is simple and the use is convenient.

In one embodiment, a sealing groove 60 is preferably formed on both the upper surfaces of the case 10 and the partition 50, and the lower surface of the cover 40. A sealing element 54 is arranged in the sealing groove 60, and the sealing element 54 can be fixedly connected to the housing 10 or to the cover 40 and the partition 50. During the tightness test, a plurality of sealing members 54 are used to seal the connection of the cover 40 and the housing 10. The seal 54 is preferably a type 0 gasket. The O-ring deforms under pressure to fill the sealing grooves 60, thereby improving the sealing effect between the housing 10 and the cover 40 and improving the accuracy of the sealing performance testing apparatus.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an air compressor machine air pump valve plate leakproofness check out test set which characterized in that: the method comprises the following steps:

the air pump comprises a shell (10) and a valve plate (20), wherein the shell (10) is provided with an inner cavity (11), the inner cavity (11) is communicated with the outside at one end of the shell (10), and the air pump valve plate (20) is detachably connected with the one end of the shell (10);

a piston (30) disposed in the inner cavity (11) of the housing (10) and reciprocally movable along the one end of the housing (10), the piston (30) being held in close contact with the housing (10) while reciprocally moving;

the air pump valve plate comprises a cover body (40), one end of the cover body is arranged in an open mode, a plurality of partition plates (50) are arranged inside the cover body (40), the open port of the cover body (40) is divided into a first open port (51), a second open port (52) and a third open port (53) through the partition plates (50), in the air tightness detection process, one end of the cover body (40) is in close contact with one end of the shell (10) so that the first open port (51), the second open port (52) and the third open port (53) are connected with the shell (10) to form a closed state, and the first open port (51) and the second open port (52) can respectively cover an air inlet valve plate (21) and an air outlet valve plate (22) on the air pump valve plate (20);

first atmospheric pressure sensor (41), second atmospheric pressure sensor (42) and third atmospheric pressure sensor (43), all set up on lid (40), in the gas tightness testing process, be used for measuring respectively first uncovered (51), second uncovered (52) and the gas pressure value in third uncovered (53), first atmospheric pressure sensor (41), second atmospheric pressure sensor (42) and third atmospheric pressure sensor (43) all are connected with the external control ware electricity.

2. The air compressor air pump valve plate tightness detection device of claim 1, characterized in that: the one end of casing (10) is the upper end, lid (40) along transversely setting in casing (10) top.

3. The air compressor air pump valve plate tightness detection device of claim 1, characterized in that: a plurality of sealing elements (54) are arranged on the lower surface of the cover body (40), and in the sealing detection process, the sealing elements (54) are used for sealing the connection between the cover body (40) and the shell (10).