A pneumatic gate valve with anti-leakage structure

Abstract

The utility model relates to the technical field of gate valves, and proposes a pneumatic gate valve with an anti-leakage structure, comprising a gate valve, the top of which is fixedly connected to a cylinder, a side of which is provided with an anti-leakage stabilizing device, the anti-leakage stabilizing device comprising a push plate, the top of which is fixedly connected to the bottom of the cylinder, a notch is provided on the side of the gate valve, a side of the gate valve is fixedly connected to an air pressure cabin, one end of the air pressure cabin is penetrated by an extrusion rod, one end of the extrusion rod is fixedly connected to a triangular block away from the air pressure cabin, one end of the air pressure cabin is penetrated by a short tube, and one end of the short tube is penetrated by an air bag away from the air pressure cabin. Through the above technical scheme, the problems of difficulty in preventing medium leakage and providing reliable sealing performance in the prior art are solved, and the adaptability and stability of the valve are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, and in particular to a pneumatic gate valve with an anti-leakage structure. Background Art

[0002] The pneumatic gate valve with anti-leakage structure can effectively prevent leakage problems through a variety of designs and technical means, ensuring the safety and reliability of industrial processes.

[0003] Patent publication number CN 213267759 U discloses a pneumatic gate valve with an anti-leakage structure, including a pneumatic gate valve body and a pneumatic motor body, a pneumatic motor body is installed on the top of the pneumatic gate valve body, anti-leakage mechanisms are provided at both the front and rear ends of the pneumatic gate valve body, a fifth connecting plate is fixed to the top of the pneumatic gate valve body, and a first protective cover is provided on the top of the fifth connecting plate.

[0004] However, during the connection between the current gate valve and the pipeline, leakage may occur due to unstable connection. It is difficult to prevent medium leakage and provide reliable sealing performance through the mutual cooperation between the pneumatic gate valve body, the pneumatic motor body and other components, and to improve the adaptability and stability of the valve, which needs to be improved. Utility Model Content

[0005] The utility model provides a pneumatic gate valve with an anti-leakage structure, which solves the problem of a pneumatic gate valve with an anti-leakage structure in the related art.

[0006] The technical solution of the utility model is as follows: a pneumatic gate valve with an anti-leakage structure, comprising a gate valve, the top of the gate valve is fixedly connected to a cylinder, the side of the gate valve is provided with an anti-leakage stabilization device, the anti-leakage stabilization device comprises a push plate, the top of the push plate is fixedly connected to the bottom of the cylinder, a slot is provided on the side of the gate valve, the side of the gate valve is fixedly connected to an air pressure cabin, one end of the air pressure cabin is penetrated by an extrusion rod, the end of the extrusion rod away from the air pressure cabin is fixedly connected to a triangular block, the end of the air pressure cabin away from the extrusion rod is penetrated by a short tube, and the end of the short tube away from the air pressure cabin is penetrated by an air bag.

[0007] According to the above technical solution, the triangular block is located on the inner wall of the slot, and the triangular block is located on the displacement track of the push plate. The triangular block is located on the inner wall of the slot, which is conducive to unimpeded displacement of the triangular block.

[0008] According to the above technical solution, a spring is fixedly sleeved on the circumferential surface of the extrusion rod, and one end of the spring away from the extrusion rod is fixedly connected to the inner wall of the air pressure chamber. The air pressure chamber and the air bag are provided with two, and are symmetrical to each other along the vertical center axis of the gate valve. The design of the spring is conducive to automatic reset when the extrusion rod does not need to be squeezed.

[0009] According to the above technical solution, a rectangular groove is provided on the inner wall of the gate valve, a connecting pipe is passed through the bottom of the pressure chamber, a thin rod is passed through the end of the connecting pipe away from the pressure chamber, a push rod is slidably connected to the end of the thin rod away from the connecting pipe, and a pushing block is fixedly connected to the end of the push rod away from the thin rod, so that the gas inside the pressure chamber is squeezed downward, so that a part of the gas inside the pressure chamber will enter the interior of the connecting pipe, and the gas will enter the interior of the thin rod through the connecting pipe. The thin rod will push the push rod to move through the gas, and the movement of the push rod will push the pushing block to move. The pushing block will squeeze the pipeline, and the pipeline that has been placed on the inner wall of the gate valve and is not in the correct position will be squeezed into the correct position to prevent the pipeline from being skewed, which can ensure that the pipeline and the sealing surface of the gate valve are completely aligned, thereby improving the sealing performance and reducing the risk of leakage.

[0010] According to the above technical solution, the pushing block and the thin rod are located on the inner wall of the rectangular groove, and the connecting pipe is located on the side of the gate valve. The design of being located on the inner wall of the rectangular groove is conducive to not blocking the placement of the pipeline.

[0011] According to the above technical solution, two triangular blocks, springs and extrusion rods are provided, and are symmetrical to each other along the vertical center axis of the gate valve. Two groups are provided, which is conducive to inflating the two airbags at the same time and further deepening the sealing.

[0012] According to the above technical solution, an air pipe runs through the side of the cylinder, the gate valve is set to be made of metal, and the cylinder is located on the top of the push plate. The metal gate valve is conducive to making the connection more stable.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. The utility model realizes that the round tube connected to the cylinder moves downward by the mutual cooperation among the push plate, the air pressure chamber, the triangular block, the extrusion rod and other components inside the anti-leakage stabilization device, which will drive the push plate to move downward. In the process of the push plate moving downward, the triangular block will be squeezed. The squeezed triangular block will move sideways, and the triangular block will drive the extrusion rod to move, so that the extrusion rod is squeezed into the air pressure chamber, and the gas inside the air pressure chamber is squeezed downward, so that a part of the gas inside the air pressure chamber passes through the short tube, and the gas is filled into the interior of the airbag, so that the airbag in a deflated state expands and bulges. When the airbag expands, it will form a tight seal with the inner wall of the pipe to prevent medium leakage, provide reliable sealing performance, and improve the adaptability and stability of the valve.

[0015] 2. The utility model realizes the downward squeezing of the gas inside the pressure chamber through the mutual cooperation between the connecting pipe, the pushing block, the pushing rod and other components inside the anti-leakage stabilizing device, so that a part of the gas inside the pressure chamber will enter the inside of the connecting pipe, and the gas will enter the inside of the thin rod through the connecting pipe. The thin rod will push the pushing rod to move through the gas, and the movement of the pushing rod will push the pushing block to move. The pushing block will squeeze the pipeline, and the pipeline that has been placed on the inner wall of the gate valve and is in an incorrect position will be squeezed into the correct position to prevent the pipeline from being skewed, which can ensure that the sealing surface of the pipeline and the gate valve are completely aligned, thereby improving the sealing performance, reducing the risk of leakage, and maintaining the stability of the pipeline and the correct installation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0018] Figure 2 It is a three-dimensional enlarged structural diagram of the air pressure cabin of the utility model;

[0019] Figure 3 It is a three-dimensional enlarged structural diagram of the airbag of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of A in the middle;

[0021] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the push block of the utility model.

[0022] In the figure: 1. gate valve; 2. cylinder; 3. anti-leakage stabilization device; 31. push plate; 32. notch; 33. air pressure chamber; 34. triangular block; 35. extrusion rod; 36. spring; 37. short tube; 38. air bag; 39. connecting tube; 310. rectangular groove; 311. thin rod; 312. push block; 313. push rod; 4. air pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1 to Figure 3 As shown, this embodiment proposes a pneumatic gate valve with an anti-leakage structure, including a gate valve 1, a cylinder 2 is fixedly connected to the top of the gate valve 1, an anti-leakage stabilizing device 3 is arranged on the side of the gate valve 1, the anti-leakage stabilizing device 3 includes a push plate 31, the top of the push plate 31 is fixedly connected to the bottom of the cylinder 2, a slot 32 is provided on the side of the gate valve 1, an air pressure cabin 33 is fixedly connected to the side of the gate valve 1, an extrusion rod 35 penetrates one end of the air pressure cabin 33, a triangular block 34 is fixedly connected to the end of the extrusion rod 35 away from the air pressure cabin 33, a short tube 37 penetrates one end of the air pressure cabin 33 away from the extrusion rod 35, and an air bag 38 penetrates one end of the short tube 37 away from the air pressure cabin 33.

[0026] The triangular block 34 is located on the inner wall of the slot 32 . The triangular block 34 is located on the displacement track of the push plate 31 . The triangular block 34 being located on the inner wall of the slot 32 is conducive to ensuring that the displacement of the triangular block 34 is not hindered.

[0027] A spring 36 is fixedly sleeved on the circumferential surface of the extrusion rod 35, and one end of the spring 36 away from the extrusion rod 35 is fixedly connected to the inner wall of the air pressure chamber 33. There are two air pressure chambers 33 and air bags 38, which are symmetrical to each other along the vertical center axis of the gate valve 1. The design of the spring 36 is conducive to automatic reset when the extrusion rod 35 does not need to be squeezed.

[0028] When the air bag 38 is inflated, it will form a tight seal with the inner wall of the pipe to prevent leakage of the medium. This design provides reliable sealing performance, and can effectively prevent leakage even when the connection is not tight, thereby improving the adaptability and stability of the valve.

[0029] Example 2

[0030] like Figure 3 to Figure 5As shown, based on the same concept as the above-mentioned embodiment 1, the present embodiment further proposes that a rectangular groove 310 is provided on the inner wall of the gate valve 1, a connecting pipe 39 passes through the bottom of the air pressure chamber 33, a thin rod 311 passes through the end of the connecting pipe 39 away from the air pressure chamber 33, a push rod 313 is slidably connected to the end of the thin rod 311 away from the connecting pipe 39, and a pushing block 312 is fixedly connected to the end of the push rod 313 away from the thin rod 311, so that the gas inside the air pressure chamber 33 is squeezed downward, so that a part of the gas inside the air pressure chamber 33 will enter the inside of the connecting pipe 39, and the gas will enter the inside of the thin rod 311 through the connecting pipe 39. The thin rod 311 will push the push rod 313 to move through the gas, and the movement of the push rod 313 will push the pushing block 312 to move, and the pushing block 312 will squeeze the pipeline, and squeeze the pipeline that has been placed on the inner wall of the gate valve 1 and is not in the correct position to the correct position, prevent the pipeline from being skewed, and ensure that the pipeline and the sealing surface of the gate valve 1 are completely aligned, thereby improving the sealing performance and reducing the risk of leakage.

[0031] The push block 312 and the thin rod 311 are located on the inner wall of the rectangular groove 310, and the connecting pipe 39 is located on the side of the gate valve 1. The design of being located on the inner wall of the rectangular groove 310 is conducive to the placement of the pipeline without blocking it.

[0032] There are two triangular blocks 34, springs 36, and extrusion rods 35, which are symmetrical to each other along the vertical center axis of the gate valve 1. Two groups are provided, which is conducive to expanding and bulging the two air bags 38 at the same time, further deepening the sealing performance.

[0033] An air pipe 4 penetrates the side of the cylinder 2, and the gate valve 1 is set to be made of metal. The cylinder 2 is located on the top of the push plate 31. The gate valve 1 made of metal is conducive to making the connection more stable.

[0034] In this embodiment, the gas inside the pressure chamber 33 is squeezed downward, so that a part of the gas inside the pressure chamber 33 will enter the inside of the connecting pipe 39, and the gas will enter the inside of the thin rod 311 through the connecting pipe 39. The thin rod 311 will push the push rod 313 to move through the gas, and the movement of the push rod 313 will push the push block 312 to move. The push block 312 will squeeze the pipeline, and the pipeline that has been placed on the inner wall of the gate valve 1 and is in an incorrect position will be squeezed into the correct position to prevent the pipeline from being skewed, which can ensure that the pipeline and the sealing surface of the gate valve 1 are completely aligned, thereby improving the sealing performance, reducing the risk of leakage, and maintaining the stability of the pipeline and the correct installation position.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic gate valve with a leak-proof structure, characterized in that: It comprises a gate valve (1), characterized in that: a cylinder (2) is fixedly connected to the top of the gate valve (1), and a leakage-proof stabilizing device (3) is arranged on the side of the gate valve (1); The anti-leakage stabilizing device (3) comprises a push plate (31), the top of which is fixedly connected to the bottom of the cylinder (2), a slot (32) is provided on the side of the plug valve (1), a pressure chamber (33) is fixedly connected to the side of the plug valve (1), an extrusion rod (35) is passed through one end of the pressure chamber (33), an end of the extrusion rod (35) away from the pressure chamber (33) is fixedly connected to a triangular block (34), an end of the pressure chamber (33) away from the extrusion rod (35) is passed through a short tube (37), and an end of the short tube (37) away from the pressure chamber (33) is passed through an air bag (38).

2. A pneumatic gate valve with an anti-leakage structure according to claim 1, characterized in that: The triangular block (34) is located on the inner wall of the notch (32), and the triangular block (34) is located on the displacement track of the push plate (31).

3. A pneumatic gate valve with an anti-leakage structure according to claim 2, characterized in that: A spring (36) is fixedly sleeved on the circumferential surface of the extrusion rod (35), and one end of the spring (36) away from the extrusion rod (35) is fixedly connected to the inner wall of the air pressure chamber (33). Two air pressure chambers (33) and air bags (38) are provided and are symmetrical to each other along the vertical center axis of the gate valve (1).

4. The pneumatic gate valve with anti-leakage structure according to claim 3, characterized in that: A rectangular groove (310) is provided on the inner wall of the gate valve (1); a connecting pipe (39) penetrates the bottom of the air pressure chamber (33); a thin rod (311) penetrates the end of the connecting pipe (39) away from the air pressure chamber (33); a push rod (313) is slidably connected to the end of the thin rod (311) away from the connecting pipe (39); and a push block (312) is fixedly connected to the end of the push rod (313) away from the thin rod (311).

5. The pneumatic gate valve with anti-leakage structure according to claim 4, characterized in that: The pushing block (312) and the thin rod (311) are located on the inner wall of the rectangular groove (310), and the connecting pipe (39) is located on the side of the gate valve (1).

6. The pneumatic gate valve with anti-leakage structure according to claim 5, characterized in that: The triangular block (34), the spring (36), and the extrusion rod (35) are provided in two pieces and are symmetrical to each other along the vertical center axis of the gate valve (1).

7. The pneumatic gate valve with anti-leakage structure according to claim 6, characterized in that: An air pipe (4) penetrates the side of the cylinder (2), the gate valve (1) is made of metal, and the cylinder (2) is located on the top of the push plate (31).

Images