Valve plate structure of air inlet valve of compressor

Abstract

The utility model discloses a valve plate structure of an air inlet valve of a compressor, which belongs to the technical field of air inlet valves of compressors and comprises a valve body, a butt joint pipe is fixedly mounted at the upper end of the valve body, a connecting air pipe is fixedly connected to the lower end of the valve body, a valve plate mechanism is arranged in the valve body, and an air control mechanism is arranged below the valve body. The lower end of the butt joint pipe is fixedly provided with a talc block, the talc block is provided with a coating, the inner side of the talc block is provided with a sealing valve plate, the lower end of the sealing valve plate is fixedly provided with a sealing gasket, the valve plate structure of the air inlet valve of the compressor is additionally provided with a valve plate mechanism and an air control mechanism, and the valve plate mechanism adopts a lubricating material and a protection structure; the sliding stone filled with the coating is fixedly installed in the butt joint pipe so as to reduce the frictional resistance of the sealing valve plate in the opening and closing process, reduce the dynamic resistance and improve the sealing performance, and the air control mechanism is of a pneumatic structure and can control the position of the sealing valve plate so as to achieve the rapid opening and closing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor inlet valves, and specifically relates to a valve plate structure of a compressor inlet valve. Background Art

[0002] A compressor is a mechanical device that can compress gas to a specified pressure and volume, and is widely used in fields such as refrigeration, air conditioning, petroleum, and chemical industry. The compressor is driven by an electric motor or other power sources, and by means of the movement of mechanical components such as reciprocating pistons, rotary vanes, or screws, the gas is caused to change in pressure and temperature within a closed container, thereby achieving gas compression. The main components of the compressor include a compression chamber, an expansion valve, an electric motor, a cooling system, etc. According to the working principle and structural characteristics of the compressor, it can be divided into types such as reciprocating compressors, rotary compressors, and screw compressors.

[0003] Combined with the valve plate structure of the compressor inlet valve in the prior art, it is found that when the valve plate structure of the compressor inlet valve is applied, the valve plate structure of the existing compressor inlet valve is prone to wear after long-term use, resulting in a decrease in sealing performance and affecting the normal operation of the compressor. During the opening and closing process, the dynamic resistance of the valve plate is relatively large, increasing the power consumption of the compressor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a valve plate structure of a compressor inlet valve to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A valve plate structure of a compressor inlet valve, including a valve body, a docking pipe is fixedly installed at the upper end of the valve body, a connecting air pipe is fixedly connected to the lower end of the valve body, a valve plate mechanism is arranged inside the valve body, a gas control mechanism is arranged below the valve body, the valve plate mechanism includes a sliding stone block, a coating, a sealing valve plate, and a sealing gasket, the sliding stone block is fixedly installed at the lower end of the docking pipe, a coating is arranged on the sliding stone block, and a sealing valve plate is arranged inside the sliding stone block.

[0006] Optionally, a sealing gasket is fixedly installed at the lower end of the sealing valve plate.

[0007] Optionally, the valve plate mechanism further includes a limiting insertion ring, a limiting slot, a connecting column, and a spring body, the limiting insertion ring and the connecting column are fixedly installed at the lower end of the sealing gasket.

[0008] Optionally, the connecting column is fixedly installed in the middle inside the limiting insertion ring, and a spring body is fixedly installed at the lower end of the connecting column.

[0009] Optionally, a limiting slot is fixedly opened in the middle inside the valve body, and the limiting slot is snap-connected with the limiting insertion ring.

[0010] Optionally, the air control mechanism includes a mounting plate, an air pump body, an air duct and an air chamber. A mounting plate is provided on the right side of the connecting air duct, and one end of the spring body away from the connecting column is fixedly connected to the air chamber.

[0011] Optionally, an air pump body is fixedly installed on the mounting plate, an air duct is fixedly installed on the air pump body, and an air chamber is fixedly installed at one end of the air duct away from the air pump body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, a valve plate mechanism and an air control mechanism are provided. By adopting a lubrication structure combining a sliding stone and a coating, the valve plate mechanism can still maintain good sealing performance after long-term use, reducing the problem of sealing performance degradation caused by wear. The lubrication structure of the sliding stone and the coating effectively reduces the frictional resistance of the valve plate during opening and closing, reducing the power consumption of the compressor and improving the energy utilization efficiency. The use of a polytetrafluoroethylene (PTFE) coating improves the wear resistance of the sliding stone, extends the service life of the valve plate mechanism, and reduces the maintenance cost; the air control mechanism is pneumatically controlled, and the air control mechanism can quickly open and close the valve plate, improving the response speed and operation efficiency of the compressor. The air control mechanism can accurately control the position of the sealing valve plate to ensure the accurate opening and closing of the gas passage, avoiding performance degradation caused by poor control. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model in a three-dimensional front view;

[0015] Figure 2 is a schematic structural diagram of the present utility model in a planar front view;

[0016] Figure 3 is a schematic structural diagram of the present utility model in a three-dimensional bottom view;

[0017] Figure 4 is a schematic structural diagram of the present utility model in a planar bottom view;

[0018] Figure 5 is a schematic structural diagram of a three-dimensional cross-section of the present utility model Figure 1 ;

[0019] Figure 6 is a schematic structural diagram of a three-dimensional cross-section of the present utility model Figure 2 .

[0020] In the figure: 1. Valve body; 2. Docking pipe; 3. Connecting air pipe; 4. Valve plate mechanism; 401. Slide block; 402. Coating; 403. Sealing valve plate; 404. Sealing gasket; 405. Limit insertion ring; 406. Limit slot; 407. Connecting column; 408. Spring body; 5. Air control mechanism; 501. Mounting plate; 502. Air pump body; 503. Air guide pipe; 504. Air chamber. Detailed implementation mode

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 6, in the embodiment of the present utility model, a valve plate structure of a compressor intake valve includes a valve body 1. A butt joint pipe 2 is fixedly installed at the upper end of the valve body 1, and a connecting air pipe 3 is fixedly connected to the lower end of the valve body 1. A valve plate mechanism 4 is arranged inside the valve body 1, and a gas control mechanism 5 is arranged below the valve body 1. The valve plate mechanism 4 includes a sliding stone block 401, a coating 402, a sealing valve plate 403 and a sealing gasket 404. The sliding stone block 401 is fixedly installed at the lower end of the butt joint pipe 2. The coating 402 is arranged on the sliding stone block 401. The sealing valve plate 403 is arranged inside the sliding stone block 401. The sealing gasket 404 is fixedly installed at the lower end of the sealing valve plate 403. The valve plate mechanism 4 further includes a limiting insertion ring 405, a limiting slot 406, a connecting column 407 and a spring body 408. The limiting insertion ring 405 and the connecting column 407 are fixedly installed at the lower end of the sealing gasket 404. The connecting column 407 is fixedly installed in the middle inside the limiting insertion ring 405. The spring body 408 is fixedly installed at the lower end of the connecting column 407. A limiting slot 406 is fixedly opened in the middle inside the valve body 1. The limiting slot 406 is snap-connected with the limiting insertion ring 405;

[0025] The sliding stone block 401 made of high wear-resistant material has good lubrication performance, effectively reduces the frictional resistance of the valve plate during the opening and closing processes, and improves the service life of the valve plate. The coating 402 is made of polytetrafluoroethylene (PTFE) material, which has excellent wear resistance and a low coefficient of friction, reduces the frictional resistance of the valve plate during movement, and improves the wear resistance of the valve plate. The sealing valve plate 403 contacts the sliding stone block 401 to achieve the lubrication effect and at the same time plays a sealing role to ensure the sealing performance of the gas passage. The sealing gasket 404 is inserted into the annular sliding stone block 401 and the coating 402 to further ensure the sealing effect and prevent gas leakage. The limiting slot 406 cooperates with the limiting insertion ring 405 to control the movement range of the valve plate and ensure the normal operation of the valve plate. The spring body 408, under the control of the gas control mechanism 5, pulls the sealing valve plate 403 and the sealing gasket 404 to achieve the reset effect and at the same time plays a buffering role to reduce the impact force of the valve plate during the opening and closing processes;

[0026] The gas control mechanism 5 includes a mounting plate 501, an air pump body 502, a guide air pipe 503 and an air chamber 504. The mounting plate 501 is arranged on the right side of the connecting air pipe 3. One end of the spring body 408 far from the connecting column 407 is fixedly connected to the air chamber 504. The air pump body 502 is fixedly installed on the mounting plate 501. The guide air pipe 503 is fixedly installed on the air pump body 502. One end of the guide air pipe 503 far from the air pump body 502 is fixedly installed with the air chamber 504; The air pump body 502 provides power for the gas control mechanism 5, injects gas into the air chamber 504 through the guide air pipe 503 to achieve the opening and closing of the valve plate. The guide air pipe 503 connects the air pump body 502 and the air chamber 504 to convey gas and ensure the accuracy of pneumatic control.

[0027] The working principle of the present utility model is as follows: The valve plate structure of the intake valve of this compressor is additionally provided with a valve plate mechanism 4 and an air control mechanism 5. Before using the valve plate structure of the intake valve of this compressor, it is necessary to pre-energize the air pump body 502 and connect it to the control terminal. It is also necessary to use the docking pipe 2 and the connecting air pipe 3 to connect to the compressor. When using the valve plate structure of the intake valve of this compressor, the sliding stone block 401 and the coating 402 in the valve plate mechanism 4 are combined into a lubricating structure. The coating 402 is a polytetrafluoroethylene (PTFE) coating 402, which can improve the wear resistance of the sliding stone block 401. The sealing valve plate 403 contacts the sliding stone block 401 to achieve a lubricating effect. The sealing valve plate 403 and the sealing gasket 404 are inserted onto the annular sliding stone block 401 and the coating 402 to achieve a sealing effect. If it is necessary to push the sealing valve plate 403 and the sealing gasket 404, the air control mechanism 5 is enabled, and the air pump body 502 is started to inject air into the air chamber 504 through the air guide pipe 503, so that the pressure in the air chamber 504 increases, the spring body 408 extends, and the sealing valve plate 403 and the sealing gasket 404 are pushed into the annular sliding stone block 401 and the coating 402 to achieve a sealing effect. If it is necessary to open the gas passage, only the air pump body 502 needs to be enabled to extract the pressurized gas, and the spring body 408 expands and contracts, thereby pulling down the sealing valve plate 403 and the sealing gasket 404; In summary, the valve plate mechanism 4 adopts a lubricating material and a protection structure, and the sliding stone block 401 filled with the coating 402 is fixedly installed in the docking pipe 2 to reduce the frictional resistance of the sealing valve plate 403 during the opening and closing processes, reduce the dynamic resistance, and improve the sealing performance. The air control mechanism 5 adopts a pneumatic structure, which can control the position of the sealing valve plate 403 to achieve the effect of rapid opening and closing.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A valve plate structure of a compressor intake valve, comprising a valve body (1), a butt-joint pipe (2) being fixedly mounted on the upper end of the valve body (1), and a connecting air pipe (3) being fixedly connected to the lower end of the valve body (1), characterized in that: A valve plate mechanism (4) is arranged inside the valve body (1), an air control mechanism (5) is arranged below the valve body (1), the valve plate mechanism (4) comprises a talc block (401), a coating (402), a sealing valve plate (403) and a sealing gasket (404), a talc block (401) is fixedly mounted at the lower end of the butt-joint pipe (2), the talc block (401) is provided with a coating (402), and a sealing valve plate (403) is arranged on the inner side of the talc block (401).

2. The valve plate structure of a compressor intake valve according to claim 1, characterized in that: A sealing gasket (404) is fixedly mounted on the lower end of the sealing valve plate (403).

3. The valve plate structure of a compressor intake valve according to claim 2, characterized in that: The valve plate mechanism (4) further comprises a limiting insert ring (405), a limiting slot (406), a connecting column (407) and a spring body (408), and the limiting insert ring (405) and the connecting column (407) are fixedly mounted on the lower end of the sealing gasket (404).

4. The valve plate structure of a compressor intake valve according to claim 3, characterized in that: The connecting column (407) is fixedly mounted in the middle of the inner side of the limiting insert ring (405), and a spring body (408) is fixedly mounted at the lower end of the connecting column (407).

5. The valve plate structure of a compressor intake valve according to claim 1, characterized in that: A limiting slot (406) is fixedly provided in the middle of the inner side of the valve body (1), and the limiting slot (406) is snap-connected to the limiting insert ring (405).

6. The valve plate structure of a compressor intake valve according to claim 4, characterized in that: The air control mechanism (5) comprises a mounting plate (501), an air pump body (502), an air guide pipe (503) and an air chamber (504); the mounting plate (501) is arranged on the right side of the connecting air pipe (3); and one end of the spring body (408) away from the connecting column (407) is fixedly connected to the air chamber (504).

7. The valve plate structure of a compressor intake valve according to claim 6, characterized in that: An air pump body (502) is fixedly mounted on the mounting plate (501), an air guide tube (503) is fixedly mounted on the air pump body (502), and an air storage (504) is fixedly mounted on one end of the air guide tube (503) away from the air pump body (502).

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