Air tightness detection equipment for air compressor component

Abstract

The utility model discloses an air compressor part airtightness detection device, which relates to the technical field of air compressor detection and comprises a frame, a base is mounted in the middle of the frame, a lower frame body matched with a valve plate of an air compressor to be detected is mounted on the base through a group of connecting pieces, and a lower pressing piece is mounted on the upper portion of the frame. A base plate is installed at the output end of the downward pressing piece, an upper frame body matched with the air compressor valve plate to be detected is installed below the base plate through another set of connecting pieces, and a first cavity and a second cavity are reserved in the left side and the right side of the interior of the upper frame body; a piston assembly is installed in the base, two air pressure sensors are installed below the base plate, and the two air pressure sensors are located in the first cavity and the second cavity correspondingly. The air compressor component airtightness detection equipment is stable in connection and convenient to disassemble and assemble, multiple sealing guarantees accurate detection, movement is stable, errors are reduced, valve plates of different specifications are adapted through adjustment, universality is high, and airtightness detection is efficiently completed.

Description

Technical Field

[0001] This utility model relates to the field of air compressor testing technology, specifically to an air compressor component air tightness testing device. Background Technology

[0002] An air compressor is a device used to compress gas. Most air compressors are reciprocating piston type. Reciprocating piston air compressors use a cylinder, valve plate, and intake and exhaust valves on the valve plate to achieve air intake and exhaust. The sealing performance of the valve plate directly affects the operation of the air compressor, so the sealing performance of the air compressor's valve plate needs to be tested.

[0003] However, there are still pressing issues to be addressed in the sealing testing of air compressor valve plates. For example, existing testing equipment has poor versatility. Due to differences in size and structure between valve plates of different models and specifications of air compressors, when testing different models of valve plates, it is often necessary to make large-scale adjustments to the overall structure of the equipment or replace multiple core components. This not only makes the operation cumbersome and increases the cost of using the equipment, but also prolongs the preparation time for testing, severely restricting the improvement of testing efficiency.

[0004] Therefore, we propose an air tightness testing device for air compressor components to solve the problems mentioned above. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] The purpose of this invention is to provide an air tightness testing device for air compressor components to solve the problems currently found in the market as described in the background.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, this utility model provides the following technical solution: an air compressor component air tightness testing device, including a frame, a base installed in the middle of the frame, a lower frame body matching the valve plate of the air compressor to be tested installed on the base through a set of connecting parts, a lower pressure component installed on the upper part of the frame, a base plate installed at the output end of the lower pressure component, and an upper frame body matching the valve plate of the air compressor to be tested installed below the base plate through another set of connecting parts, and a first chamber and a second chamber are pre-reserved on the left and right sides inside the upper frame body;

[0009] The base has a piston assembly installed inside, and two pressure sensors are installed below the base plate. The two pressure sensors are located inside chamber one and chamber two, respectively.

[0010] Furthermore, the connector includes a fixing frame fixed to the base or substrate, a connecting block is elastically slidably installed inside the fixing frame on the side near the center of the frame, and a pull rope is fixed on the side of the connecting block away from the center of the frame. The pull rope is connected to a pull ring on the outside of the fixing frame, and a screw is threadedly installed in the middle of the fixing frame, which abuts against the connecting block.

[0011] With the above technical solution, when the upper or lower frame is placed between the two connecting parts and installed in place, the connecting block can quickly extend into the upper or lower frame to achieve quick engagement. Then, the screw is rotated to hold the connecting block in place, improving stability. When disassembly is required, the screw is rotated in the opposite direction, and the pull ring is pulled to make the connecting block disengage from the upper or lower frame, thus completing the disassembly.

[0012] Furthermore, the connectors are symmetrically distributed about the center of the frame, the connecting block is inclined on the side near the center of the frame, and the connecting block forms a concave-convex fit structure with the side of the lower frame or the side of the upper frame.

[0013] The above technical solution ensures that the connecting block will not obstruct the displacement of the upper or lower frame.

[0014] Furthermore, a first sealing gasket and a second sealing gasket are respectively installed at the upper and lower ends of the lower frame. The lower frame is attached to the base and the valve plate of the air compressor to be tested through the first and second sealing gaskets, respectively. A third sealing gasket and a fourth sealing gasket are respectively installed at the upper and lower ends of the upper frame. The upper frame is attached to the base plate and the valve plate of the air compressor to be tested through the third and fourth sealing gaskets, respectively.

[0015] The above technical solution ensures that the pressure data monitored by the air pressure sensor only reflects the leakage of the valve plate under test, thereby improving the detection accuracy.

[0016] Furthermore, the piston assembly includes a cavity formed inside the base, an electric push rod is installed at the bottom of the cavity, and a piston plate is installed at the output end of the electric push rod. The piston plate is slidably disposed inside the cavity, and the cavity communicates with the interior of the lower frame.

[0017] The above technical solution allows for adjustment of the internal pressure of the cavity once the electric actuator is activated.

[0018] Furthermore, the pressing component includes a second electric push rod installed on the upper part of the frame. The output end of the second electric push rod is fixedly connected to the upper part of the substrate, and a guide rod is fixedly installed on the upper part of the substrate. The guide rod is slidably mounted on the frame.

[0019] The above technical solution enables the upper frame to move downwards when the electric push rod 2 is activated, thereby achieving the connection and fixation between the upper frame, valve plate and lower frame.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the air compressor component air tightness testing equipment of this utility model, using the technical solution provided by this utility model, has a stable connection and is easy to assemble and disassemble. Multiple seals ensure accurate testing, smooth movement reduces errors, and by adjusting and adapting to valve plates of different specifications, it has strong versatility and efficiently completes the air tightness test. Its specific contents are as follows:

[0022] First, place the valve plate of the air compressor to be tested above the lower frame and attach it to the second sealing gasket. Then, control the extension of the electric push rod two of the lower pressure component, driving the base plate and upper frame to move downward, so that the upper frame tightly attaches to the upper part of the valve plate through the fourth sealing gasket, and causes the second sealing gasket to tightly attach to the lower part of the valve plate, completing the upper and lower sealing and fixing of the valve plate. If the left side of the valve plate is the intake valve plate and the right side of the valve plate is the outlet valve plate, when the piston plate is moved downward by the electric push rod one, the gas in chamber one enters the interior of the cavity. At this time, the value detected by the air pressure sensor in chamber one decreases. When the value detected by the air pressure sensor in chamber two remains unchanged, the sealing performance of the outlet valve plate of the valve plate is qualified; otherwise, it is unqualified. When the piston plate is moved upward by the electric push rod one, the gas in the cavity enters the interior of chamber two. At this time, the value detected by the air pressure sensor in chamber two increases. When the value detected by the air pressure sensor in chamber one remains unchanged, the sealing performance of the intake valve plate of the valve plate is qualified; otherwise, it is unqualified.

[0023] Meanwhile, the second and third sealing gaskets effectively isolate the interference of external gas on chamber one, chamber two and the cavity, ensuring that the pressure data monitored by the pressure sensor only reflects the leakage of the valve plate to be tested, thus improving the detection accuracy.

[0024] When the model of the air compressor valve plate to be tested is changed, the corresponding lower frame and upper frame should be replaced. When installing the new lower frame and upper frame, insert the lower frame or upper frame between the two corresponding connectors. After installation, under the action of the spring, the connecting block extends into the interior of the lower frame or upper frame to achieve quick connection. Then, rotate the corresponding screw so that the screw abuts against the connecting block to prevent slippage due to vibration and improve installation stability. In addition, by using the matching connectors, only the lower frame and upper frame of the corresponding size need to be replaced to adapt to air compressor valve plates of different specifications, thus improving the versatility of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2This is a schematic diagram of the overall front view of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the cavity in this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the upper frame of this utility model;

[0029] Figure 5 This is a schematic diagram of the working state of this utility model;

[0030] Figure 6 This is a schematic diagram of the internal structure of the fixing frame of this utility model.

[0031] In the diagram: 1. Frame; 2. Base; 3. Connector; 31. Fixing frame; 32. Connecting block; 33. Pull rope; 34. Pull ring; 35. Screw; 4. Lower frame; 41. First sealing gasket; 42. Second sealing gasket; 5. Piston assembly; 51. Cavity; 52. Piston plate; 53. Electric push rod one; 6. Lower pressing component; 61. Electric push rod two; 62. Base plate; 63. Guide rod; 7. Upper frame; 71. Chamber one; 72. Chamber two; 73. Third sealing gasket; 74. Fourth sealing gasket; 8. Pressure sensor. Detailed Implementation

[0032] To facilitate understanding of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0036] Please see Figure 1-6 An air compressor component air tightness testing device includes a frame 1, a base 2 mounted in the middle of the frame 1, a lower frame 4 matching the valve plate of the air compressor to be tested mounted on the base 2 via a set of connectors 3, a lower pressure component 6 mounted on the upper part of the frame 1, a base plate 62 mounted on the output end of the lower pressure component 6, and an upper frame 7 matching the valve plate of the air compressor to be tested mounted below the base plate 62 via another set of connectors 3. The upper frame 7 has two pre-drilled chambers 71 and 72 on the left and right sides. A piston assembly 5 is installed inside the base 2, and two air pressure sensors 8 are installed below the base plate 62, located inside chambers 71 and 72 respectively. A first sealing gasket 41 and a second sealing gasket 42 are installed at the upper and lower ends of the lower frame 4 respectively. The lower frame 4 is connected by the first sealing gasket 41 and the second sealing gasket 42. 2. The upper frame 7 is respectively attached to the base 2 and the valve plate of the air compressor to be tested. The upper and lower ends of the upper frame 7 are respectively equipped with a third sealing gasket 73 and a fourth sealing gasket 74. The upper frame 7 is attached to the base plate 62 and the valve plate of the air compressor to be tested through the third sealing gasket 73 and the fourth sealing gasket 74 respectively. The piston assembly 5 includes a cavity 51 opened inside the base 2. An electric push rod 53 is installed at the bottom of the cavity 51. A piston plate 52 is installed at the output end of the electric push rod 53. The piston plate 52 is slidably disposed inside the cavity 51. The cavity 51 is connected to the interior of the lower frame 4. The lower pressing component 6 includes an electric push rod 61 installed on the upper part of the frame 1. The output end of the electric push rod 61 is fixedly connected to the upper part of the base plate 62. A guide rod 63 is fixedly installed on the upper part of the base plate 62. The guide rod 63 is slidably disposed on the frame 1.

[0037] First, place the valve plate of the air compressor to be tested above the lower frame 4 and attach it to the second sealing gasket 42. Then, control the extension of the electric push rod 61 of the lower pressure component 6, driving the base plate 62 and the upper frame 7 to move downwards, so that the upper frame 7 is tightly attached to the upper part of the valve plate through the fourth sealing gasket 74, and causes the second sealing gasket 42 to be tightly attached to the lower part of the valve plate, completing the upper and lower sealing and fixing of the valve plate. If the left side of the valve plate is the intake valve plate and the right side of the valve plate is the outlet valve plate, when the piston plate 52 is moved downwards by the electric push rod 53, the gas in the first chamber 71 enters the interior of the cavity 51. At this time, the value detected by the air pressure sensor 8 in the first chamber 71 decreases. When the value detected by the air pressure sensor 8 in the second chamber 72 remains unchanged, the sealing performance of the outlet valve plate of the valve plate is qualified; otherwise, it is unqualified. When the piston plate 52 is moved upwards by the electric push rod 53, the gas in the cavity 51 enters the chamber. Inside chamber 72, the pressure sensor 8 inside chamber 72 detects an increase in value. When the pressure sensor 8 inside chamber 71 remains unchanged, the sealing performance of the intake valve plate of the valve plate is qualified; otherwise, it is unqualified. At the same time, the second sealing gasket 42 and the third sealing gasket 73 are used to effectively isolate the interference of external gas on chamber 71, chamber 72 and cavity 51, ensuring that the pressure data monitored by the pressure sensor 8 only reflects the leakage of the valve plate under test, thus improving the detection accuracy.

[0038] The connector 3 includes a fixing frame 31 fixed on the base 2 or the base plate 62. A connecting block 32 is elastically slidably installed inside the fixing frame 31 on the side near the center of the frame 1. A pull rope 33 is fixed on the side of the connecting block 32 away from the center of the frame 1. A pull ring 34 is connected to the outside of the fixing frame 31 via the pull rope 33. A screw 35 is threadedly installed in the middle of the fixing frame 31, and the connecting block 32 is held against the connecting block 32 by the screw 35. The connector 3 is symmetrically distributed about the center of the frame 1. The lower part of the connecting block 32 near the center of the frame 1 is inclined. The connecting block 32 and the side of the lower frame 4 or the side of the upper frame 7 form a concave-convex fit structure.

[0039] When the model of the air compressor valve plate to be tested is changed, the corresponding lower frame 4 and upper frame 7 are replaced, and the new lower frame 4 and upper frame 7 are installed. First, the lower frame 4 or upper frame 7 is inserted between the two corresponding connecting parts 3. After installation, under the action of the spring, the connecting block 32 extends into the interior of the lower frame 4 or upper frame 7 to achieve quick connection. Then, the corresponding screw 35 is rotated so that the screw 35 abuts against the connecting block 32 to prevent slippage due to vibration and improve installation stability. In addition, with the cooperation of the connecting parts 3, only the lower frame 4 and upper frame 7 of the corresponding size need to be replaced to adapt to air compressor valve plates of different specifications, improving the versatility of the equipment.

[0040] Working principle: When using this air compressor component air tightness testing equipment, such as... Figure 1-6As shown, firstly, the lower frame 4 corresponding to the model of the air compressor valve plate to be tested is installed on the base 2, and the upper frame 7 is installed below the base plate 62. Then, the air compressor valve plate to be tested is placed above the lower frame 4 and attached to the second sealing gasket 42. The electric push rod 61 is activated to drive the base plate 62 and the upper frame 7 to move down, so that the upper frame 7 is tightly attached to the upper part of the valve plate through the fourth sealing gasket 74, and the second sealing gasket 42 is tightly attached to the lower part of the valve plate, thus completing the upper and lower sealing and fixing of the valve plate. If the left side of the valve plate is the intake valve plate and the right side is the exhaust valve plate, when the piston plate 52 is moved downward by the electric push rod 53, if the value detected by the air pressure sensor 8 in the chamber 72 remains unchanged, then the sealing performance of the exhaust valve plate of the valve plate is qualified; otherwise, it is unqualified. When the piston plate 52 is moved upward by the electric push rod 53, if the value detected by the air pressure sensor 8 in the chamber 71 remains unchanged, then the sealing performance of the intake valve plate of the valve plate is qualified; otherwise, it is unqualified.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air compressor component air tightness testing device, characterized in that: The device includes a frame (1), a base (2) is installed in the middle of the frame (1), a lower frame (4) matching the valve plate of the air compressor to be tested is installed on the base (2) through a set of connectors (3), a lower pressure component (6) is installed on the upper part of the frame (1), a base plate (62) is installed at the output end of the lower pressure component (6), and an upper frame (7) matching the valve plate of the air compressor to be tested is installed below the base plate (62) through another set of connectors (3). The upper frame (7) has a first chamber (71) and a second chamber (72) reserved on the left and right sides. The base (2) is equipped with a piston assembly (5), and two pressure sensors (8) are installed below the base plate (62). The two pressure sensors (8) are located inside the first chamber (71) and the second chamber (72), respectively.

2. The air tightness testing equipment for air compressor components according to claim 1, characterized in that: The connector (3) includes a fixing frame (31) fixed on the base (2) or the base plate (62). A connecting block (32) is elastically slidably installed inside the fixing frame (31) on the side close to the center of the frame (1). A pull rope (33) is fixed on the side of the connecting block (32) away from the center of the frame (1). A pull ring (34) is connected to the outside of the fixing frame (31) via the pull rope (33). A screw (35) is threaded in the middle of the fixing frame (31) and abuts the connecting block (32) through the screw (35).

3. The air tightness testing equipment for air compressor components according to claim 2, characterized in that: The connector (3) is symmetrically distributed about the center of the frame (1). The connecting block (32) is inclined on the side near the center of the frame (1), and the connecting block (32) forms a concave-convex fit structure with the side of the lower frame (4) or the side of the upper frame (7).

4. The air tightness testing equipment for air compressor components according to claim 1, characterized in that: The lower frame (4) is equipped with a first sealing gasket (41) and a second sealing gasket (42) at its upper and lower ends respectively. The lower frame (4) is attached to the base (2) and the valve plate of the air compressor to be tested through the first sealing gasket (41) and the second sealing gasket (42) respectively. The upper frame (7) is equipped with a third sealing gasket (73) and a fourth sealing gasket (74) at its upper and lower ends respectively. The upper frame (7) is attached to the base plate (62) and the valve plate of the air compressor to be tested through the third sealing gasket (73) and the fourth sealing gasket (74) respectively.

5. The air tightness testing equipment for air compressor components according to claim 1, characterized in that: The piston assembly (5) includes a cavity (51) opened inside the base (2). An electric push rod (53) is installed at the bottom of the cavity (51), and a piston plate (52) is installed at the output end of the electric push rod (53). The piston plate (52) is slidably disposed inside the cavity (51) and the cavity (51) is connected to the interior of the lower frame (4).

6. The air tightness testing equipment for air compressor components according to claim 1, characterized in that: The pressing component (6) includes an electric push rod two (61) installed on the upper part of the frame (1). The output end of the electric push rod two (61) is fixedly connected to the upper part of the substrate (62), and a guide rod (63) is fixedly installed on the upper part of the substrate (62). The guide rod (63) is slidably mounted on the frame (1) in close contact with the upper part of the substrate (62).

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