Emptying valve for air compressor

Abstract

The emptying valve for the air compressor comprises a valve body, a circulation groove is formed in the valve body, an anti-abrasion mechanism and a flow adjusting mechanism are arranged in the circulation groove, the anti-abrasion mechanism comprises a valve seat, a hard alloy piece is fixedly connected in the valve seat, a fixing column is fixedly connected in the valve seat, and the flow adjusting mechanism is fixedly connected in the fixing column. One end of the fixing column is fixedly connected with a mounting plate. Through the arrangement of the anti-abrasion mechanism, the first spring plug sealing ring has better sealing performance than an O-shaped ring and has better abrasion resistance than the O-shaped ring, so that the service life can be prolonged, emptying and emptying stopping are carried out through sliding friction between the valve element and the hard alloy piece, the service life of the valve seat can be longer, and the safety of the valve seat is improved. The valve element is arranged in the valve seat and connected with the valve seat, so that the valve seat, the valve element and the first spring plug sealing ring are more convenient to disassemble and assemble, and the replacement time can be shorter when one part is seriously abraded and needs to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of vent valves, in particular to a vent valve for an air compressor. Background Art

[0002] An air valve is a device used to release gas or liquid to relieve overpressure in a system. This type of valve is usually designed to be manual or automatic. Its main function is to open or release the valve to allow gas or liquid in the system to flow out freely, thereby reducing the system pressure.

[0003] During the use of the air compressor, in order to release excess gas to avoid damage to the system due to overpressure and to prevent equipment failure, a vent valve is generally installed in the air compressor to discharge excess gas. At present, most air compressor valves use O-rings to form a seal with a certain interference fit and a low core. However, the rubber O-ring is prone to aging, which can easily lead to seal failure, resulting in leakage of the vent valve. A large amount of leakage of the vent valve will seriously affect the production efficiency of the two air separation equipment, increase operating costs, and has poor practicality. Therefore, in order to solve the above problems, a vent valve for an air compressor is proposed. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a vent valve for an air compressor.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a vent valve for an air compressor, comprising a valve body, a flow groove is provided inside the valve body, an anti-wear mechanism and a flow regulating mechanism are provided inside the flow groove, the anti-wear mechanism comprises a valve seat, a hard alloy part is fixedly connected to the interior of the valve seat, a fixing column is fixedly connected to the interior of the valve seat, one end of the fixing column is fixedly connected to a mounting plate, a sleeve is fixedly connected to one side of the mounting plate, a spring is fixedly connected to one side of the mounting plate, one side of the spring is fixedly connected to a limiting block, one side of the limiting block is fixedly connected to a valve core, a first universal seal ring is sleeved on the outside of the valve core, four fixing columns are provided, which can better fix the mounting plate, the sleeve and the valve core are respectively provided inside the valve seat, and there is a notch on the surface of the valve core so that the first universal seal ring can be inserted and stabilized on the outside of the valve core.

[0006] Preferably, the limit block is arranged inside the sleeve, and the limit block is slidably connected to the sleeve. When the limit block is slidably connected inside the sleeve, the sleeve also limits the valve core through the limit block.

[0007] Preferably, a clamping block is fixedly connected to the inner side of the sleeve, the valve core is slidably connected to the hard alloy part, a portion of the valve core is arranged inside the hard alloy part, and the first Variseal sealing ring is also arranged inside the hard alloy part, so that the valve core can slide into the hard alloy part and the first Variseal sealing ring can make the contact between the two more sealed.

[0008] Preferably, a fixing groove is provided inside the valve body, a fixing block is fixedly connected to one end of the valve seat, and the fixing block is fixed to the inside of the fixing groove by screws. A second Variseal sealing ring is sleeved on the outside of the valve seat, and an air inlet connector is fixedly connected to one end of the valve body, which can be connected to an air compressor through the air inlet connector, so that excess gas from the air compressor is discharged into the circulation groove through the gas connector and then discharged from the circulation groove. A notch is provided inside the valve seat, so that the second Variseal sealing ring can be stuck in the notch, thereby being stably sleeved on the outside of the valve seat.

[0009] Preferably, the flow regulating mechanism includes a setting cylinder, which is arranged inside the valve body, and one end of the setting cylinder is fixedly connected to a connecting ring, and the connecting ring is fixedly connected to the valve body by a screw. A limiting rod is arranged inside the setting cylinder, and one end of the limiting rod is arranged inside the circulation groove, which can block the circulation groove, and the connecting ring is arranged on the lower side of the valve body.

[0010] Preferably, the limiting rod is threadedly connected to the setting tube, and a third Variseal sealing ring is sleeved on the outside of the setting tube. A notch is provided on the surface of the setting tube, and the third Variseal sealing ring is inserted into the notch so that the third Variseal sealing ring can be stably sleeved on the outside of the setting tube.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. Through the provision of an anti-wear mechanism, the first Variseal seal ring of the present invention has better sealing performance and better wear resistance than an O-ring, thereby extending its service life. Venting and stopping venting are performed through sliding friction between the valve core and the carbide component, which can extend the service life of the valve seat. By locating the valve core inside the valve seat and connecting it to the valve seat, disassembly and assembly of the valve seat, valve core, and first Variseal seal ring are more convenient, and when a component is severely worn and needs to be replaced, replacement can be completed more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1This is a schematic structural diagram of the utility model facing the whole;

[0015] Figure 2 This is a schematic diagram of the structure of the first front cross-section of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the second front cross-section of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the third front cross-section of the utility model;

[0018] Figure 5 It is a schematic structural diagram of the side cross-section of the utility model.

[0019] In the figure: 1. valve body; 2. flow groove; 3. valve seat; 4. carbide part; 5. fixing column; 6. mounting plate; 7. sleeve; 8. spring; 9. limit block; 10. valve core; 11. first universal seal ring; 12. clamping block; 13. fixing groove; 14. fixing block; 15. second universal seal ring; 16. air inlet connector; 17. setting cylinder; 18. connecting ring; 19. limit rod; 20. third universal seal ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-5, a vent valve for an air compressor, comprising a valve body 1, a flow groove 2 is provided inside the valve body 1, an anti-wear mechanism and a flow regulating mechanism are provided inside the flow groove 2, the anti-wear mechanism comprises a valve seat 3, a hard alloy part 4 is fixedly connected to the inside of the valve seat 3, a fixing column 5 is fixedly connected to the inside of the valve seat 3, one end of the fixing column 5 is fixedly connected to a mounting plate 6, a sleeve 7 is fixedly connected to one side of the mounting plate 6, a spring 8 is fixedly connected to one side of the mounting plate 6, a limiting block 9 is fixedly connected to one side of the limiting block 9, a valve core 10 is fixedly connected to the outside of the valve core 10 with a first universal seal ring 11, the limiting block 9 is provided inside the sleeve 7, the limiting block 9 is slidably connected to the sleeve 7, a card block 12 is fixedly connected to the inner side of the sleeve 7, and the valve core 10 is slidably connected to the hard alloy part 4 Next, a first Variseal seal 11 is sleeved on the exterior of the valve core 10, so that when the valve core 10 slides into the interior of the hard alloy member 4, venting can be stopped. The provision of the first Variseal seal 11 provides better sealing performance and better wear resistance than an O-ring, thereby extending the service life and preventing leakage of the vent valve. Venting and stopping venting are performed by sliding friction between the valve core 10 and the hard alloy member 4, which can extend the service life of the valve seat 3. By disposing the valve core 10 inside the valve seat 3 and connecting it to the valve seat 3, disassembly and assembly of the valve seat 3, the valve core 10, and the first Variseal seal 11 are more convenient, and replacement of a component due to severe wear can be accelerated.

[0022] In one aspect of this embodiment, the fixing block 14 is inserted into the fixing groove 13 and fixed to the fixing groove 13 by screws, thereby fixing the valve seat 3 to the interior of the valve body 1. In addition, a second Variseal seal 15 is provided on the outside of the valve seat 3 to improve the sealing effect of the connection between the valve seat 3 and the valve body 1, thereby preventing gas from leaking from the connection between the valve seat 3 and the valve body 1. By providing the air inlet connector 16, the air compressor can be flange-connected to the air inlet connector 16, so that excess gas from the air compressor can be discharged through the vent valve.

[0023] In one aspect of this embodiment, the setting cylinder 17 is inserted deeply into the interior of the valve body 1, so that the connecting ring 18 is stuck on the lower side of the valve body 1. The provision of the third universal seal ring 20 can improve the sealing performance of the connection between the setting cylinder 17 and the valve body 1, thereby preventing gas leakage from the connection between the setting cylinder 17 and the valve body 1. After the setting cylinder 17 is fixed, the limiting rod 19 can be screwed into the interior of the valve body 1, so that one end of the limiting rod 19 is disposed in the flow groove 2, thereby blocking the flow groove 2. When it is necessary to adjust the flow rate of gas in the flow groove 2, it is only necessary to twist the lower end of the limiting rod 19 to change the volume of the limiting rod 19 in the flow groove 2 to control and change the flow rate of gas.

[0024] The working principle of the present utility model: when the vent valve for the air compressor is in use, it is installed together with the air compressor through the setting of the air inlet connecting piece 16. When venting is required, the solenoid valve is closed, and then the limit rod 19 is twisted to allow the gas to flow into the circulation groove 2. The setting of the fixed connection between the spring 8 and the limit block 9 and the fixed connection between the limit block 9 and the valve core 10 makes the valve core 10 elastic, and the pressure of the gas can push the valve core 10 out of the carbide part 4, so that the gas flows out from the valve seat 3. When the venting stops, the solenoid valve is opened, and then the limit rod 19 is twisted in the opposite direction to close the circulation groove 2. Thereafter, the limit block 9 is limited by the setting of the sleeve 7 and the limit block 9 is fixed by the spring 8, so that the elastic force of the spring 8 acts on the valve core 10 through the limit block 9, so that the valve core 10 is reset and re-stuck in the carbide part 4. All electrical equipment in this scheme are powered by an external power supply.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vent valve for an air compressor, comprising a valve body (1), characterized in that: The valve body (1) is provided with a circulation groove (2) inside, and an anti-wear mechanism and a flow regulating mechanism are provided inside the circulation groove (2). The anti-wear mechanism includes a valve seat (3), the interior of the valve seat (3) is fixedly connected to a hard alloy part (4), the interior of the valve seat (3) is fixedly connected to a fixing column (5), one end of the fixing column (5) is fixedly connected to a mounting plate (6), one side of the mounting plate (6) is fixedly connected to a sleeve (7), one side of the mounting plate (6) is fixedly connected to a spring (8), one side of the spring (8) is fixedly connected to a limit block (9), one side of the limit block (9) is fixedly connected to a valve core (10), and the outside of the valve core (10) is covered with a first universal seal ring (11).

2. The vent valve for an air compressor according to claim 1, characterized in that: The limiting block (9) is arranged inside the sleeve (7), and the limiting block (9) is slidably connected to the sleeve (7).

3. The vent valve for an air compressor according to claim 1, characterized in that: A clamping block (12) is fixedly connected to the inner side of the sleeve (7), and the valve core (10) is slidably connected to the hard alloy part (4).

4. The vent valve for an air compressor according to claim 1, characterized in that: A fixing groove (13) is provided inside the valve body (1), one end of the valve seat (3) is fixedly connected to a fixing block (14), the fixing block (14) is fixed inside the fixing groove (13) by screws, a second universal seal ring (15) is sleeved on the outside of the valve seat (3), and one end of the valve body (1) is fixedly connected to an air inlet connector (16).

5. The vent valve for an air compressor according to claim 1, characterized in that: The flow regulating mechanism comprises a setting cylinder (17), the setting cylinder (17) is arranged inside the valve body (1), one end of the setting cylinder (17) is fixedly connected to a connecting ring (18), the connecting ring (18) is fixedly connected to the valve body (1) via a screw, and a limiting rod (19) is arranged inside the setting cylinder (17).

6. The vent valve for an air compressor according to claim 5, characterized in that: The limiting rod (19) is threadedly connected to the setting cylinder (17), and the outside of the setting cylinder (17) is covered with a third universal sealing ring (20).

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