Annular valve for air compressor

Abstract

The utility model relates to the technical field of annular valves, in particular to an annular valve for an air compressor, which comprises a valve seat and a valve cover, the surface of the valve cover is fixedly connected with a screw rod, the arc surface of the screw rod is in threaded connection with a nut, the screw rod penetrates through the valve seat, and a plurality of springs are fixedly connected in the valve cover. One end of the spring is fixedly connected with a valve element, the valve element is connected with the valve seat in a sliding mode, the valve element is connected with the valve cover in a sliding mode, a connecting structure is arranged on the surface of the valve seat and comprises a first clamping groove, the first clamping groove is formed in the arc surface of the valve seat, and a plurality of second clamping grooves are formed in the arc surface of the valve cover. According to the check valve, the connecting structure is arranged, the connecting plate is inserted into the first clamping groove and the second clamping groove, the connecting plate can limit the positions of the valve seat and the valve cover, the situation that a gap is generated due to displacement of the valve seat and the valve cover is avoided, and therefore the sealing performance between the valve cover and the valve seat is guaranteed.

Description

Technical Field

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

[0002] When the air compressor is working, the annular valve controls the inflow and outflow of gas by moving the valve core. When the valve needs to be opened, the gas pressure overcomes the elastic force of the spring and pushes the valve core to move, allowing the gas to pass through the channel between the valve seat and the valve cover. When the valve needs to be closed, the elastic force of the spring pushes the valve core back to its original position, blocking the gas channel.

[0003] The above and existing technologies have the following defects: during the operation of the annular valve, the reciprocating movement of the valve core will cause the annular valve to vibrate, which can easily lead to the loosening of the fastening valve cover and the valve seat, resulting in a decrease in the sealing performance of the annular valve.

[0004] Therefore, an annular valve for an air compressor is proposed. Utility Model Content

[0005] The utility model aims to solve the problem that the reciprocating movement of the valve core causes the annular valve to vibrate, thereby easily leading to the loosening of the fastening valve cover and the valve seat, and proposes an annular valve for an air compressor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an annular valve for an air compressor, comprising a valve seat and a valve cover, the surface of the valve cover is fixedly connected with a screw, the arc surface of the screw is threadedly connected with a nut, the screw passes through the valve seat, a plurality of springs are fixedly connected inside the valve cover, one end of the spring is fixedly connected with a valve core, the valve core is slidingly connected to the valve seat, the valve core is slidingly connected to the valve cover, the surface of the valve seat is provided with a connecting structure, the connecting structure comprises a first groove, the first groove is opened on the arc surface of the valve seat, the arc surface of the valve cover is provided with a plurality of second grooves, the inner wall of the first groove is slidingly connected with a connecting plate, and the connecting plate is slidingly connected to the second groove.

[0007] The effect achieved by the above components is: by setting up a connecting structure and inserting the connecting plate into the first slot and the second slot, the connecting plate can limit the position of the valve seat and the valve cover, preventing the valve seat and the valve cover from shifting and causing a gap, thereby ensuring the sealing between the valve cover and the valve seat.

[0008] Preferably, a plug rod is slidably connected in the valve seat, and the plug rod passes through the connecting plate.

[0009] The effect achieved by the above components is: the insertion rod is inserted into the connecting plate to limit the position of the connecting plate.

[0010] Preferably, a magnetic ring is fixedly connected to the surface of the valve seat, and a magnetic plate is fixedly connected to one end of the insertion rod, and the magnetic poles of the magnetic plate and the magnetic ring on the side close to each other are in opposite directions.

[0011] The effect achieved by the above components is: when the connecting plate slides to a suitable position, the magnetic plate will move toward the magnetic ring with the help of magnetic force, and the movement of the magnetic plate will drive the insertion rod to move.

[0012] Preferably, a connection cap is fixedly connected to the surface of the magnetic plate, and the vertical cross-section of the connection cap is trapezoidal.

[0013] The effect achieved by the above components is that the connecting cap with a trapezoidal vertical cross section can facilitate the pulling out of the plug rod, thereby facilitating the subsequent removal of the connecting plate from the first slot and the second slot.

[0014] Preferably, a slope is provided on the surface of the connecting plate.

[0015] The effect achieved by the above components is that during the movement of the connecting plate, the inclined surface of the connecting plate will come into contact with the insertion rod, and the connecting plate will squeeze the insertion rod.

[0016] Preferably, a fixing rod is fixedly connected to the surface of the valve seat, one end of the fixing rod is rotatably connected to a rotating plate, and the rotating plate is slidably connected to the nut.

[0017] The effect achieved by the above components is that the rotating plate can prevent the nut from rotating along the arc surface of the screw, thereby ensuring the fastening effect of the screw and the nut.

[0018] Preferably, the arc surface of the fixing rod is sleeved with a torsion spring, and both ends of the torsion spring are fixedly connected to the valve seat and the rotating plate respectively.

[0019] The effect achieved by the above components is that the rotating plate can be always positioned above the nut by utilizing the torsion force of the torsion spring.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] In the utility model, a connecting structure is provided to ensure the sealing of the annular valve in the air compressor. The connecting plate is inserted into the first slot and the second slot. The connecting plate can limit the position of the valve seat and the valve cover, preventing the valve seat and the valve cover from being displaced and causing a gap, thereby ensuring the sealing between the valve cover and the valve seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 This is a schematic diagram of the split structure of the valve seat of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the valve seat of the utility model;

[0025] Figure 4 This is a schematic diagram of the split structure of the valve seat of the utility model from another angle;

[0026] Figure 5 This is a schematic structural diagram of the connecting plate of the utility model;

[0027] Legend: 1. Valve seat; 2. Valve cover; 3. Screw; 4. Nut; 5. Spring; 6. Valve core; 7. Connection structure; 701. First slot; 702. Second slot; 703. Connecting plate; 704. Insert rod; 705. Magnetic ring; 706. Magnetic plate; 707. Connecting cap; 708. Fixed rod; 709. Rotating plate; 710. Torsion spring. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figure 1-Figure 5 As shown, the utility model provides an annular valve for an air compressor, comprising a valve seat 1 and a valve cover 2, a screw rod 3 being fixedly connected to the surface of the valve cover 2, a nut 4 being threadedly connected to the arc surface of the screw rod 3, the screw rod 3 passing through the valve seat 1, a plurality of springs 5 ​​being fixedly connected to the inside of the valve cover 2, a valve core 6 being fixedly connected to one end of the spring 5, the valve core 6 being slidably connected to the valve seat 1, the valve core 6 being slidably connected to the valve cover 2, a connecting structure 7 being provided on the surface of the valve seat 1, the connecting structure 7 comprising a first groove 701, the first groove 701 being provided on the arc surface of the valve seat 1, a plurality of second grooves 702 being provided on the arc surface of the valve cover 2, the inner wall of the first groove 701 being slidably connected to the inner wall of the valve cover 2 It is connected to a connecting plate 703, which is slidably connected to the second slot 702. A plug rod 704 is slidably connected to the valve seat 1. The plug rod 704 passes through the connecting plate 703, so that the plug rod 704 is inserted into the connecting plate 703 to limit the position of the connecting plate 703. A magnetic ring 705 is fixedly connected to the surface of the valve seat 1, and a magnetic plate 706 is fixedly connected to one end of the plug rod 704. The magnetic poles of the magnetic plate 706 and the magnetic ring 705 on the side close to each other are in opposite directions. When the connecting plate 703 slides to a suitable position, the magnetic plate 706 will move toward the direction close to the magnetic ring 705 with the help of magnetic force, and the movement of the magnetic plate 706 will drive the plug rod 704 to move.

[0031] like Figure 2-Figure 4 As shown, the surface of the magnetic plate 706 is fixedly connected to a connecting cap 707, and the vertical cross-section of the connecting cap 707 is trapezoidal. The connecting cap 707 with a trapezoidal vertical cross-section can easily pull out the plug rod 704, thereby facilitating the subsequent removal of the connecting plate 703 from the first slot 701 and the second slot 702. The surface of the connecting plate 703 is provided with an inclined surface. In the process of moving the connecting plate 703, the inclined surface of the connecting plate 703 will contact the plug rod 704, and the connecting plate 703 will squeeze the plug rod 704, and the valve seat 1 The surface is fixedly connected to a fixing rod 708, one end of which is rotatably connected to a rotating plate 709, and the rotating plate 709 is slidingly connected to the nut 4. The rotating plate 709 can prevent the nut 4 from rotating along the arc surface of the screw 3, thereby ensuring the fastening effect of the screw 3 and the nut 4. The arc surface of the fixing rod 708 is covered with a torsion spring 710, and the two ends of the torsion spring 710 are fixedly connected to the valve seat 1 and the rotating plate 709 respectively. The torsion force of the torsion spring 710 can make the rotating plate 709 always located above the nut 4.

[0032] Its overall working principle is that the screw 3 and the nut 4 cooperate to fasten the valve seat 1 and the valve cover 2 together. When the air in the air compressor pipeline enters the valve seat 1, the air will impact the valve core 6, and the valve core 6 will slide into the valve cover 2. Then the air can flow through the valve cover 2. When the air no longer impacts the valve core 6, the spring 5 stretches to make the valve core 6 seal the valve seat 1. When it is necessary to enhance the connection effect between the valve seat 1 and the valve cover 2, the connecting plate 703 is inserted into the first slot 701 and the second slot 702. The connecting plate 703 can limit the position of the valve seat 1 and the valve cover 2 to prevent the valve seat 1 and the valve cover 2 from shifting and generating a gap. In the process of moving the connecting plate 703, the inclined surface of the connecting plate 703 will contact the plug rod 704, the connecting plate 703 will squeeze the plug rod 704, and the plug rod 704 will slide upward along the valve seat 1. When the connecting plate 70 When the valve seat 1 and the valve cover 2 need to be separated, the connecting cap 707 with a trapezoidal vertical cross section can be used to easily pull out the plug 704, thereby facilitating the subsequent removal of the connecting plate 703 from the first slot 701 and the second slot 702. After that, the rotating plate 709 is rotated to disengage the rotating plate 709 from the nut 4, and then the nut 4 can be loosened to separate the valve seat 1 and the valve cover 2.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An annular valve for an air compressor, comprising a valve seat (1) and a valve cover (2), characterized in that: The surface of the valve cover (2) is fixedly connected with a screw rod (3), the arc surface of the screw rod (3) is threadedly connected with a nut (4), the screw rod (3) passes through the valve seat (1), a plurality of springs (5) are fixedly connected inside the valve cover (2), one end of the spring (5) is fixedly connected with a valve core (6), the valve core (6) is slidably connected to the valve seat (1), the valve core (6) is slidably connected to the valve cover (2), the surface of the valve seat (1) is provided with a connecting structure (7), the connecting structure (7) includes a first groove (701), the first groove (701) is provided on the arc surface of the valve seat (1), the arc surface of the valve cover (2) is provided with a plurality of second grooves (702), the inner wall of the first groove (701) is slidably connected with a connecting plate (703), and the connecting plate (703) is slidably connected to the second groove (702).

2. The annular valve for an air compressor according to claim 1, characterized in that: An insert rod (704) is slidably connected inside the valve seat (1), and the insert rod (704) passes through the connecting plate (703).

3. The annular valve for an air compressor according to claim 2, characterized in that: A magnetic ring (705) is fixedly connected to the surface of the valve seat (1), and a magnetic plate (706) is fixedly connected to one end of the insertion rod (704). The magnetic poles of the magnetic plate (706) and the magnetic ring (705) on the side close to each other are in opposite directions.

4. The annular valve for an air compressor according to claim 3, characterized in that: A connection cap (707) is fixedly connected to the surface of the magnetic plate (706), and the vertical cross-section of the connection cap (707) is trapezoidal.

5. The annular valve for an air compressor according to claim 2, characterized in that: The surface of the connecting plate (703) is provided with an inclined surface.

6. The annular valve for an air compressor according to claim 1, characterized in that: A fixed rod (708) is fixedly connected to the surface of the valve seat (1), one end of the fixed rod (708) is rotatably connected to a rotating plate (709), and the rotating plate (709) is slidably connected to the nut (4).

7. The annular valve for an air compressor according to claim 6, characterized in that: The arc surface of the fixed rod (708) is covered with a torsion spring (710), and the two ends of the torsion spring (710) are fixedly connected to the valve seat (1) and the rotating plate (709) respectively.

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