A pneumatic clamp valve

Abstract

The utility model discloses a kind of pneumatic pinch valve, it is related to pneumatic pinch valve technical field, including drive pipe, the left side of the drive pipe is placed with first valve body, the right side of the drive pipe is placed with second valve body, first hose is installed in the first valve body, second hose is installed in the second valve body, the top and bottom of the first valve body and second valve body are fixedly connected with first joint, the top and bottom of the first valve body and second valve body are fixedly connected with second joint, the pneumatic pinch valve, by being provided with first valve body, second valve body and second hose and first hose, by being closed in cutting off, first hose is closed first, then second hose is closed, can substantially reduce when feeding material body, material in material body is stuck in first hose inside, cause first hose to be not closed strictly, leakage occurs, by being provided with second hose behind first hose, to be able to reinforce closed again.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic clamp valve technology, specifically a pneumatic clamp valve. Background Technology

[0002] Pinch valves, also known as clamp valves, airbag valves, or shut-off valves, are widely used in various types of conveying pipelines. Based on the actuation method, pinch valves can be classified into manual pinch valves, pneumatic pinch valves, electric pinch valves, and hydraulic pinch valves, with pneumatic pinch valves being the most common. However, when cutting off material, the material can easily become stuck in the flow hose, causing a leak and affecting the conveying of the material. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pneumatic clamp valve, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic pinch valve, comprising a drive pipe, a first valve body placed on the left side of the drive pipe, and a second valve body placed on the right side of the drive pipe. A first flexible hose is installed inside the first valve body, and a second flexible hose is installed inside the second valve body. First connectors are fixedly connected to the top and bottom of both the first and second valve bodies, and second connectors are fixedly connected to the top and bottom of both the first and second valve bodies. An operating box is fixedly connected to the top of the drive pipe, and an air box is fixedly connected to the top of the operating box. A first pump is fixedly connected to the bottom of the air box. A main pipe is fixedly connected to one end of the first pump. A piston cylinder is fixedly connected to the bottom of the main pipe. A drive cylinder is fixedly connected to the bottom of the piston cylinder. A support spring is fixedly connected to the bottom of the inner cavity of the drive cylinder. A piston column is fixedly connected to the top of the support spring. The top of the piston column extends into the piston cylinder and is fixedly connected to a piston block. A first input pipe is fixedly connected to one side of the main pipe. A second input pipe is fixedly connected to one side of the piston cylinder. The first input pipe, the extraction pipe, and the second input pipe are all flexible hoses.

[0005] Preferably, one end of the second input pipe extends into the piston cylinder, and one end of the second input pipe and one end of the first input pipe extend to the outside of the control box, respectively.

[0006] Preferably, both ends of the first input tube are connected to one end of the corresponding first connector, and both ends of the second input tube are connected to one end of the corresponding first connector.

[0007] Preferably, an extraction pipe is fixedly connected between the four second connectors, one end of the extraction pipe extends into the inside of the operating box, and a second pump is fixedly connected to the bottom of the air box, one end of the second pump is fixedly connected to one end of the extraction pipe, and one end of both the second pump and the first pump extends into the inside of the air box.

[0008] Preferably, one end of each of the first valve bodies is fixedly connected to a mounting base, one end of each mounting base is provided with a fixing base, and the other end of each of the first valve bodies is fixedly connected to a connecting base.

[0009] Preferably, several mounting blocks are fixedly connected to both the connecting seat and the outer side of the drive tube.

[0010] This utility model provides a pneumatic clamp valve, which has the following advantages:

[0011] 1. This pneumatic clamp valve, by comprising a first valve body, a second valve body, a second hose, and a first hose, can significantly reduce the occurrence of material getting stuck inside the first hose during material conveying, which could lead to incomplete sealing and leakage. By installing a second hose after the first hose, a second sealing can be achieved.

[0012] 2. This pneumatic pinch valve, consisting of a first input pipe, a main pipe, and a piston cylinder, draws gas from the air chamber using a first pump. The gas then enters the first input pipe through the main pipe, and subsequently the first valve body through a first connector. This causes the gas to deform the first flexible hose, cutting off the material. When the gas pressure inside the first valve body reaches a certain level, exceeding the yield strength of the supporting spring, the piston block and piston rod move downwards, compressing the supporting spring. At this point, the main pipe and the second input pipe are connected, allowing gas from the main pipe to enter the second valve body through the second input pipe. This gas then causes the second flexible hose to deform, cutting off the material, thus sealing the first flexible hose, and then sealing the second flexible hose. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the outer structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the control box of this utility model.

[0016] In the diagram: 1. First valve body; 2. Second valve body; 3. First hose; 4. Second hose; 5. First connector; 6. First input pipe; 7. Control box; 8. First pump; 9. Main pipe; 11. Piston cylinder; 12. Piston block; 13. Piston column; 14. Drive cylinder; 15. Support spring; 16. Second input pipe; 18. Second pump; 19. Extraction pipe; 20. Second connector; 21. Mounting seat; 22. Fixed seat; 23. Air box; 24. Drive pipe; 25. Connecting seat; 26. Mounting block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0018] Please see Figures 1 to 3 This utility model provides a technical solution: a pneumatic clamp valve, including a drive pipe 24, a first valve body 1 placed on the left side of the drive pipe 24, a second valve body 2 placed on the right side of the drive pipe 24, a first flexible hose 3 installed inside the first valve body 1, a second flexible hose 4 installed inside the second valve body 2, a first connector 5 fixedly connected to the top and bottom of both the first valve body 1 and the second valve body 2, a second connector 20 fixedly connected to the top and bottom of both the first valve body 1 and the second valve body 2, an operation box 7 fixedly connected to the top of the drive pipe 24, and a... Air box 23, a first pump 8 is fixedly connected to the bottom of air box 23, a main pipe 9 is fixedly connected to one end of the first pump 8, a piston cylinder 11 is fixedly connected to the bottom of the main pipe 9, a drive cylinder 14 is fixedly connected to the bottom of the piston cylinder 11, a support spring 15 is fixedly connected to the bottom of the inner cavity of the drive cylinder 14, a piston column 13 is fixedly connected to the top of the support spring 15, the top of the piston column 13 extends into the piston cylinder 11 and is fixedly connected to a piston block 12, a first input pipe 6 is fixedly connected to one side of the main pipe 9, and a second input pipe 16 is fixedly connected to one side of the piston cylinder 11.

[0019] One end of the second input pipe 16 extends into the piston cylinder 11. One end of the second input pipe 16 and one end of the first input pipe 6 extend to the outside of the operating box 7 respectively. Both ends of the second input pipe 16 and the first input pipe 6 are connected to threaded ends through rotary joints, and the threaded ends are threadedly connected to the internal threads inside the first connector 5.

[0020] Both ends of the first input tube 6 are connected to one end of the corresponding first connector 5, and both ends of the second input tube 16 are connected to one end of the corresponding first connector 5. All four ends of the first input tube 6 are connected to threaded ends through rotary joints, and the threaded ends are threadedly connected to the internal threads inside the second connector 20.

[0021] An extraction pipe 19 is fixedly connected between the four second connectors 20. One end of the extraction pipe 19 extends into the inside of the operation box 7. A second pump 18 is fixedly connected to the bottom of the gas box 23. One end of the second pump 18 is fixedly connected to one end of the extraction pipe 19. One end of both the second pump 18 and the first pump 8 extends into the inside of the gas box 23. Gas can be input into and extracted from the inside of the gas box 23 through the second pump 18 and the first pump 8.

[0022] One end of the first valve body 1 is fixedly connected to a mounting base 21, and one end of the mounting base 21 is placed with a fixing base 22. The other end of the first valve body 1 is fixedly connected to a connecting base 25. The mounting base 21 and the fixing base 22 are fixed with bolts through the insertion holes on the fixing base 22. Example

[0023] Please see Figures 1 to 2 The present invention provides a technical solution: a number of mounting blocks 26 are fixedly connected to the outer side of both the connecting seat 25 and the drive tube 24, and the connecting seat 25 and the corresponding mounting blocks 26 on the drive tube 24 are fixed with bolts.

[0024] In summary, when this pneumatic clamp valve is in use, the gas inside the air box 23 is extracted by the first pump 8, and then the gas enters the first input pipe 6 through the main pipe 9, and then enters the first valve body 1 through the first connector 5. This causes the gas to drive the first hose 3 to deform and cut off the material. When the gas pressure inside the first valve body 1 reaches a certain pressure, the gas pressure is greater than the yield strength of the support spring 15, causing the piston block 12 and piston column 13 to move down and squeeze the support spring 15. At this time, the main pipe 9 and the second input pipe 16 are connected, so that the gas inside the main pipe 9 enters the second valve body 2 through the second input pipe 16, causing the gas to drive the second hose 4 to deform and cut off the material.

[0025] When it needs to be opened, the gas inside the first valve body 1 and the second valve body 2 is extracted through the second pump 18, the extraction pipe 19 and the second connector 20. Then, the gas is discharged into the gas box 23 through the other end of the second pump 18, which reduces the gas pressure inside the first valve body 1 and the second valve body 2, causing the first hose 3 and the second hose 4 to reset. At this time, the support spring 15 pushes the piston column 13 and the piston block 12 to move upward, blocking the bottom end of the main pipe 9, so that the main pipe 9 is disconnected from the second input pipe 16.

[0026] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pneumatic pinch valve, characterized in that: The system includes a drive tube (24), a first valve body (1) placed on the left side of the drive tube (24), and a second valve body (2) placed on the right side of the drive tube (24). A first flexible hose (3) is installed inside the first valve body (1), and a second flexible hose (4) is installed inside the second valve body (2). A first connector (5) is fixedly connected to the top and bottom of both the first valve body (1) and the second valve body (2). A second connector (20) is fixedly connected to the top and bottom of both the first valve body (1) and the second valve body (2). An operating box (7) is fixedly connected to the top of the drive tube (24), and an air box (23) is fixedly connected to the top of the operating box (7). A first pump (8) is fixedly connected to the bottom of the piston cylinder (9). A main pipe (9) is fixedly connected to one end of the first pump (8). A piston cylinder (11) is fixedly connected to the bottom of the main pipe (9). A drive cylinder (14) is fixedly connected to the bottom of the piston cylinder (11). A support spring (15) is fixedly connected to the bottom of the inner cavity of the drive cylinder (14). A piston column (13) is fixedly connected to the top of the support spring (15). The top of the piston column (13) extends into the piston cylinder (11) and is fixedly connected to a piston block (12). A first input pipe (6) is fixedly connected to one side of the main pipe (9). A second input pipe (16) is fixedly connected to one side of the piston cylinder (11).

2. The pneumatic pinch valve according to claim 1, characterized in that: One end of the second input pipe (16) extends into the piston cylinder (11), and one end of the second input pipe (16) and the first input pipe (6) extend to the outside of the operating box (7), respectively.

3. A pneumatic pinch valve according to claim 1, characterized in that: Both ends of the first input tube (6) are connected to one end of the corresponding first connector (5), and both ends of the second input tube (16) are connected to one end of the corresponding first connector (5).

4. A pneumatic pinch valve according to claim 1, characterized in that: An extraction tube (19) is fixedly connected between the four second connectors (20). One end of the extraction tube (19) extends into the inside of the operating box (7). A second pump (18) is fixedly connected to the bottom of the air box (23). One end of the second pump (18) is fixedly connected to one end of the extraction tube (19). One end of the second pump (18) and one end of the first pump (8) both extend into the inside of the air box (23).

5. A pneumatic pinch valve according to claim 1, characterized in that: One end of the first valve body (1) is fixedly connected to a mounting base (21), and one end of the mounting base (21) is placed with a fixing base (22). The other end of the first valve body (1) is fixedly connected to a connecting base (25).

6. A pneumatic pinch valve according to claim 5, characterized in that: Several mounting blocks (26) are fixedly connected to the outer side of both the connecting seat (25) and the drive tube (24).

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