Pneumatic program control valve

Abstract

The utility model provides a pneumatic program control valve, which relates to the technical field of program control valves, and comprises a valve body, the left surface of the valve body is fixedly connected with a supporting pipe, the outer surface of the supporting pipe is fixedly connected with a plurality of adjusting blocks at equal intervals, and the outer surfaces of the adjusting blocks are all provided with screw rods in a threaded penetrating manner; an adjusting pipe is movably connected to the inner surface of the supporting pipe, a connecting ring is fixedly connected to the left end face of the adjusting pipe, and gears are fixedly connected to the positions, close to the left side, of the outer surfaces of the multiple lead screws. The connecting ring, the adjusting block, the gear, the circular ring, the lead screw, the adjusting pipe, the limiting block, the supporting pipe and the tooth groove are used in cooperation, the position of the adjusting pipe in the supporting pipe can be adjusted, meanwhile, under the cooperation of a sealing gasket, a piston and a sealing groove during adjustment, the sealing performance of connection can be guaranteed, and the service life of the adjusting pipe is prolonged. Therefore, the length of the valve body can be adjusted according to the length between the pipelines at the two ends, and the valve body is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of program-controlled valves, in particular to a pneumatic program-controlled valve. Background Art

[0002] A pneumatic program-controlled valve is a valve that uses compressed air as a power source, drives the valve to open and close through a pneumatic actuator, and realizes automatic control through a control system. It is widely used in various industrial automation process control systems, especially in occasions that require frequent opening and closing and remote control.

[0003] In the prior art, as disclosed in Chinese Patent Publication No. CN207333908U, a pneumatic program-controlled valve is provided, which includes a valve body, a piston rod, a gasket and a valve flap. A nut is provided at the middle position of the valve body. A connecting block is provided at the middle position below the nut. Cylinder valves are provided on both sides of the connecting block. A piston is provided on the left side of the cylinder valve. A bracket is provided at the lower right of the piston. A bolt is provided below the bracket. The piston rod is installed at the lower right of the connecting block. The gasket is installed at the upper right of the piston rod. A screw is provided at the lower left of the gasket. The structure of the utility model is scientific and reasonable, safe and convenient to use. Two O-rings can make the sealing performance of the valve body more reliable and stable, so that the valve body will not leak during frequent operation and long-term use. A sealing ring resistor is provided inside the valve body to reduce the corrosion time of the valve body. The nut and bolt on the valve body are convenient to disassemble, which makes it more convenient for workers during maintenance.

[0004] In the above patent, although the valve body will not leak during frequent operation and long-term use, and the nut and bolt on the valve body are convenient to disassemble, which makes it more convenient for workers during maintenance, when installing the valve body, when the length between the two pipes to be connected by the valve body is greater than the length of the valve body, the pipes need to be lengthened and extended before installing the valve body, which causes inconvenience to the installation of the valve body. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the above patent that although the valve body will not leak during frequent operation and long-term use, and the nut and bolt on the valve body are convenient to disassemble, which makes it more convenient for workers during maintenance, when installing the valve body, when the length between the two pipes to be connected by the valve body is greater than the length of the valve body, the pipes need to be lengthened and extended before installing the valve body, which causes inconvenience to the installation of the valve body, and a pneumatic program-controlled valve is proposed.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A pneumatic program-controlled valve, comprising: a valve body, a support pipe is fixedly connected to the left surface of the valve body, a plurality of adjusting blocks are fixedly connected to the outer surface of the support pipe at equal intervals, a lead screw is threadedly penetrated through the outer surface of each of the plurality of adjusting blocks, an adjusting pipe is movably connected to the inner surface of the support pipe, a connecting ring is fixedly connected to the left end surface of the adjusting pipe, a gear is fixedly connected to the outer surface of each of the plurality of lead screws near the left side, a ring is sleeved between the outer surfaces of the plurality of gears, and a plurality of tooth grooves are equidistantly formed in the inner wall of the ring.

[0007] Preferably, the outer surfaces of the plurality of gears are respectively meshed with the inner surfaces of the plurality of tooth grooves, and the outer surfaces of the plurality of gears are all matched with the inner surface of the ring.

[0008] Preferably, the left end surfaces of the plurality of lead screws are rotatably connected to the right end surface of the connecting ring, and the left end surface of the ring is in close contact with the right end surface of the connecting ring.

[0009] Preferably, a sealing groove is formed in the outer surface of the adjusting pipe near the right side, and a sealing gasket is arranged on the inner surface of the sealing groove.

[0010] Preferably, the outer surface of the adjusting pipe is matched with the inner surface of the support pipe, and a piston is fixedly connected to the right end surface of the adjusting pipe.

[0011] Preferably, a rotating rod is fixedly connected to the outer surface of the ring, and a limiting block is fixedly connected to the right end surface of each of the plurality of lead screws.

[0012] Preferably, a connecting pipe is fixedly connected to the left end surface of the connecting ring, and a flange is fixedly connected to the left end surface of the connecting pipe.

[0013] Preferably, the positions of the plurality of adjusting blocks are all located on the left side of the support pipe, and the diameter of the limiting block is larger than the diameter of the lead screw.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are as follows.

[0015] 1. In the utility model, through the cooperation of the connecting ring, the adjusting block, the gear, the ring, the lead screw, the adjusting pipe, the limiting block, the support pipe and the tooth groove, the position of the adjusting pipe inside the support pipe can be adjusted. At the same time, during the adjustment, with the cooperation of the sealing gasket, the piston and the sealing groove, the sealing of the connection can be ensured, so that the length of the valve body can be adjusted according to the length between the two ends of the pipeline, making the installation of the valve body more convenient.

[0016] 2. In the utility model, when rotating the ring, the ring can be toggled through the rotating rod, making it more stable and convenient for the staff to rotate the ring, and the practicability is relatively high. Description of the Drawings

[0017] Figure 1 The present utility model provides a three-dimensional view of a pneumatic program control valve;

[0018] Figure 2 The present utility model provides a partial structure sectional view of a pneumatic program control valve;

[0019] Figure 3 The present utility model provides an exploded view of a partial structure of a pneumatic program control valve;

[0020] Figure 4 The present utility model provides a sectional view of a disc of a pneumatic program control valve.

[0021] Legend: 1. Valve body; 2. Flange; 3. Connecting pipe; 4. Connecting ring; 5. Adjusting block; 6. Gear; 7. Ring; 8. Lead screw; 9. Adjusting pipe; 10. Limiting block; 11. Gasket; 12. Piston; 13. Support pipe; 14. Sealing groove; 15. Rotating rod; 16. Tooth groove. Specific embodiments

[0022] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0023] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1, as Figures 1-4As shown in the figure, the utility model provides a pneumatic program control valve, including: a valve body 1, a support pipe 13 is fixedly connected to the left surface of the valve body 1, a plurality of adjusting blocks 5 are fixedly connected to the outer surface of the support pipe 13 at equal intervals, a lead screw 8 is threadedly penetrated through the outer surface of each of the plurality of adjusting blocks 5, an adjusting pipe 9 is movably connected to the inner surface of the support pipe 13, a connecting ring 4 is fixedly connected to the left end surface of the adjusting pipe 9, a gear 6 is fixedly connected to the outer surface of each of the plurality of lead screws 8 near the left side, a circular ring 7 is sleeved between the outer surfaces of the plurality of gears 6, a plurality of tooth grooves 16 are equidistantly opened on the inner wall of the circular ring 7, the outer surfaces of the plurality of gears 6 are respectively meshed with the inner surfaces of the plurality of tooth grooves 16, the outer surfaces of the plurality of gears 6 are all matched with the inner surface of the circular ring 7, the left end surfaces of the plurality of lead screws 8 are rotatably connected to the right end surface of the connecting ring 4, the left end surface of the circular ring 7 is in close contact with the right end surface of the connecting ring 4, a sealing groove 14 is opened on the outer surface of the adjusting pipe 9 near the right side, a sealing gasket 11 is arranged on the inner surface of the sealing groove 14, the outer surface of the adjusting pipe 9 is matched with the inner surface of the support pipe 13, a piston 12 is fixedly connected to the right end surface of the adjusting pipe 9, a limiting block 10 is fixedly connected to the right end surface of each of the plurality of lead screws 8, a connecting pipe 3 is fixedly connected to the left end surface of the connecting ring 4, and a flange 2 is fixedly connected to the left end surface of the connecting pipe 3.

[0025] The effect achieved by the entire embodiment 1 is that when installing the valve body 1, by rotating the circular ring 7, the circular ring 7 rotates in contact with the connecting ring 4 and the gears 6. Through the rotation of the circular ring 7 and the cooperation of the tooth grooves 16, four gears 6 will be synchronously driven to rotate, thereby synchronously driving four lead screws 8 to rotate on the connecting ring 4. At the same time, the adjusting block 5 is threadedly connected to the lead screw 8. Therefore, with the cooperation of the adjusting block 5, the adjusting pipe 9 can move forward or backward in the support pipe 13. During adjustment, with the cooperation of the limiting block 10, the lead screw 8 can be prevented from disengaging from the adjusting block 5, so that the length of the valve body 1 can be increased or shortened, and the length of the valve body 1 can be adjusted according to the length between the two ends of the pipeline. Then, it is fixed through the connecting pipe 3 and the flange 2, which is convenient for the installation of the valve body 1. At the same time, during adjustment, the piston 12 can seal the support pipe 13 and the adjusting pipe 9. At the same time, with the cooperation of the sealing groove 14 and the sealing gasket 11, the sealing performance is further ensured, and the stability of the adjustment of the valve body 1 is guaranteed.

[0026] Embodiment 2, as Figures 1-4 shown, a rotating rod 15 is fixedly connected to the outer surface of the circular ring 7, the positions of the plurality of adjusting blocks 5 are all on the left side of the support pipe 13, and the diameter of the limiting block 10 is greater than the diameter of the lead screw 8.

[0027] The effect achieved by the entire embodiment 2 is that when rotating the circular ring 7, the circular ring 7 can be toggled through the rotating rod 15, making it more stable and convenient for the staff to rotate the circular ring 7, and the practicability is relatively high.

[0028] Working principle: When installing the valve body 1, the ring 7 can be toggled through the rotating rod 15, so that the ring 7 rotates along with the connecting ring 4 and the gear 6. Through the rotation of the ring 7 and the cooperation of the tooth grooves 16, the four gears 6 will be driven to rotate synchronously, and thus the four lead screws 8 will be driven to rotate on the connecting ring 4. At the same time, the adjusting block 5 is threadedly connected to the lead screw 8. Therefore, with the cooperation of the adjusting block 5, the adjusting pipe 9 can move forward or backward in the support pipe 13. During adjustment, with the cooperation of the limit block 10, the lead screw 8 can be prevented from disengaging from the adjusting block 5, so that the length of the valve body 1 can be increased or shortened, and thus the length of the valve body 1 can be adjusted according to the length between the two end pipes. Then, it is fixed through the connecting pipe 3 and the flange 2, which is convenient for the installation of the valve body 1. At the same time, during adjustment, the piston 12 can seal the support pipe 13 and the adjusting pipe 9. At the same time, with the cooperation of the sealing groove 14 and the sealing gasket 11, the sealing performance is further ensured, and the stability of the adjustment of the valve body 1 is guaranteed.

[0029] The above is only the preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A pneumatic program-controlled valve, characterized in that: include: A valve body (1), wherein the left surface of the valve body (1) is fixedly connected to a support tube (13), the outer surface of the support tube (13) is equidistantly fixedly connected to a plurality of adjustment blocks (5), the outer surfaces of the plurality of adjustment blocks (5) are all threaded with screw rods (8), the inner surface of the support tube (13) is movably connected to an adjustment tube (9), the left end surface of the adjustment tube (9) is fixedly connected to a connecting ring (4), the outer surfaces of the plurality of screw rods (8) near the left side are all fixedly connected to gears (6), a circular ring (7) is sleeved between the outer surfaces of the plurality of gears (6), and the inner wall of the circular ring (7) is provided with a plurality of tooth grooves (16) at equal intervals.

2. The pneumatic program-controlled valve according to claim 1, characterized in that: The outer surfaces of the plurality of gears (6) are respectively meshed with the inner surfaces of the plurality of tooth grooves (16), and the outer surfaces of the plurality of gears (6) are matched with the inner surface of the ring (7).

3. The pneumatic program-controlled valve according to claim 2, characterized in that: The left end faces of the plurality of screw rods (8) are rotatably connected to the right end face of the connecting ring (4), and the left end face of the circular ring (7) is arranged in close contact with the right end face of the connecting ring (4).

4. The pneumatic program-controlled valve according to claim 3, characterized in that: A sealing groove (14) is provided on the outer surface of the regulating tube (9) near the right side, and a sealing gasket (11) is provided on the inner surface of the sealing groove (14).

5. The pneumatic program-controlled valve according to claim 4, characterized in that: The outer surface of the regulating tube (9) matches the inner surface of the supporting tube (13), and the right end surface of the regulating tube (9) is fixedly connected with a piston (12).

6. The pneumatic program-controlled valve according to claim 5, characterized in that: The outer surface of the circular ring (7) is fixedly connected to a rotating rod (15), and the right end surfaces of the plurality of screw rods (8) are fixedly connected to a limiting block (10).

7. The pneumatic program-controlled valve according to claim 6, characterized in that: The left end surface of the connecting ring (4) is fixedly connected to a connecting pipe (3), and the left end surface of the connecting pipe (3) is fixedly connected to a flange (2).

8. The pneumatic program-controlled valve according to claim 7, characterized in that: The positions of the plurality of adjustment blocks (5) are all located on the left side of the support tube (13), and the diameter of the limit block (10) is greater than the diameter of the screw rod (8).

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