Leak-proof pneumatic butterfly valve

Abstract

The utility model belongs to the technical field of pneumatic butterfly valves, and particularly relates to a leakproof pneumatic butterfly valve which comprises a valve body, a check block is fixedly installed on one side of the valve body, a first valve body connecting block is fixedly installed at the top of the valve body, and a second valve body connecting block is fixedly installed at the bottom of the valve body. An air bag mounting block is fixedly mounted on the outer side of the valve body, an air bag is arranged in the air bag mounting block, a first movable shaft is movably mounted in the valve body, a first movable shaft connecting rod is fixedly mounted at one end of the first movable shaft, and a connecting clamping block is fixedly mounted in the valve body. A first baffle can be driven to rotate through rotation of a first movable shaft, a better anti-leakage function can be achieved by matching with a first baffle connecting rubber ring fixedly installed on the outer side of the first baffle, a second baffle can be driven to rotate through rotation of a second movable shaft, and the second movable shaft can be matched with a connecting clamping block to partition internal passing materials; therefore, the anti-leakage function of the device is realized.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic butterfly valve technology, specifically relating to a leak-proof pneumatic butterfly valve. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on / off control of low-pressure pipeline media. A butterfly valve is characterized by a circular closing element (valve disc or butterfly plate) that rotates around the valve stem to open and close. A pneumatic butterfly valve consists of a pneumatic actuator and a butterfly valve. Pneumatic butterfly valves use a circular butterfly plate that rotates with the valve stem to achieve opening and closing, primarily used as shut-off valves. They can also be designed to have regulating or shut-off / regulating functions. The use of butterfly valves in low-pressure, large- and medium-diameter pipelines is increasing. Pneumatic butterfly valve classifications include: stainless steel pneumatic butterfly valves, hard-seal pneumatic butterfly valves, soft-seal pneumatic butterfly valves, and carbon steel pneumatic butterfly valves. The main advantages of pneumatic butterfly valves are their simple structure, small size, light weight, and low cost. These characteristics are particularly significant for pneumatic butterfly valves. They are conveniently installed in high-altitude, concealed passageways and can be controlled by a 2-position 5-way solenoid valve, allowing for the regulation of flow media.

[0003] Existing pneumatic butterfly valves have relatively simple internal structures and often use a single valve to control the conveying of internal materials. However, when a single valve is in use, its internal structure cannot perfectly isolate the internal materials, which may lead to material leakage. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a leak-proof pneumatic butterfly valve. This solves the problem that existing pneumatic butterfly valves, with their relatively simple internal structure, often use a single valve to control the conveying of internal materials. However, when a single valve is in use, its internal structure cannot perfectly isolate the internal materials, potentially leading to material leakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof pneumatic butterfly valve, comprising a valve body, a stop block fixedly installed on one side of the valve body, a first valve body connecting block fixedly installed on the top of the valve body, a second valve body connecting block fixedly installed on the bottom of the valve body, an airbag mounting block fixedly installed on the outer side of the valve body, an airbag disposed inside the airbag mounting block, a first movable shaft movably installed inside the valve body, a first movable shaft connecting rod fixedly installed at one end of the first movable shaft, a connecting block fixedly installed inside the valve body, a second movable shaft movably installed inside the valve body, a second movable shaft connecting rod fixedly installed at one end of the second movable shaft, a second baffle fixedly installed on the outer side of the second movable shaft, a valve body connecting block fixedly installed on the side of the valve body, a connecting rod movably installed inside the valve body connecting block, a cylinder fixedly installed on one side inside the stop block, a movable rod disposed inside the cylinder, and connecting plates fixedly installed on both sides of the connecting rod.

[0006] Preferably, a fan is fixedly installed on one side of the valve body, and the bottom of the fan is fixedly connected to the top of the baffle. A fan pipe is installed at the bottom of one side of the fan.

[0007] Preferably, a first telescopic cavity is fixedly installed inside the first valve body connecting block, and a first electric telescopic rod is movably installed inside the first telescopic cavity.

[0008] Preferably, a second telescopic cavity is fixedly installed inside the second valve body connecting block, and a second electric telescopic rod is movably installed inside the second telescopic cavity.

[0009] Preferably, a movable rod connecting block is fixedly installed on the top of the movable rod, and the top of the movable rod connecting block is fixedly connected to the bottom of the connecting rod.

[0010] Preferably, a first baffle is fixedly installed on the outer side of the first movable shaft, and a first baffle connecting rubber ring is fixedly installed on the outer side of the first baffle.

[0011] Preferably, a movable connecting shaft is movably installed inside the connecting plate, and a traction block is movably installed outside the movable connecting shaft. One end of the traction block is fixedly connected to the outer side of one end of the first movable shaft connecting rod and the second movable shaft connecting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The first baffle connecting rubber ring, which is fixedly installed on the outside of the first baffle, can improve the isolation performance of 14. The second movable shaft can cooperate with the connecting block to isolate the internal material. Both methods can better realize the leakage prevention function of the device. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a first sectional view of the present invention;

[0018] Figure 4 This is a second cross-sectional view of the present invention.

[0019] In the diagram: 1. Valve body; 2. Stop block; 3. Fan; 4. Fan duct; 5. First valve body connecting block; 6. First telescopic cavity; 7. First electric telescopic rod; 8. Second valve body connecting block; 9. Second telescopic cavity; 10. Second electric telescopic rod; 11. Airbag mounting block; 12. Airbag; 13. First movable shaft; 14. First baffle; 15. First baffle connecting rubber ring; 16. Connecting block; 17. Second movable shaft; 18. Second baffle; 19. Valve body connecting block; 20. Cylinder; 21. Movable rod; 22. Movable rod connecting block; 23. Connecting rod; 24. Connecting plate; 25. Movable connecting shaft; 26. Traction block; 27. First movable shaft connecting rod; 28. Second movable shaft connecting rod. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model provides the following technical solution: a leak-proof pneumatic butterfly valve, comprising a valve body 1, a stop block 2 fixedly installed on one side of the valve body 1, a first valve body connecting block 5 fixedly installed on the top of the valve body 1, a second valve body connecting block 8 fixedly installed on the bottom of the valve body 1, an airbag mounting block 11 fixedly installed on the outer side of the valve body 1, an airbag 12 disposed inside the airbag mounting block 11, a first movable shaft 13 movably installed inside the valve body 1, a first movable shaft connecting rod 27 fixedly installed at one end of the first movable shaft 1, and the valve body 1... A connecting block 16 is fixedly installed inside the valve body 1. A second movable shaft 17 is movably installed inside the valve body 1. A second movable shaft connecting rod 28 is fixedly installed at one end of the second movable shaft 17. A second baffle 18 is fixedly installed on the outside of the second movable shaft 17. A valve body connecting block 19 is fixedly installed on the side of the valve body 1. A connecting rod 23 is movably installed inside the valve body connecting block 19. A cylinder 20 is fixedly installed on one side inside the baffle 2. A movable rod 21 is provided inside the cylinder 20. Connecting plates 24 are fixedly installed on both sides of the connecting rod 23.

[0022] In this embodiment: the rotation of the first movable shaft 13 can drive the first baffle 14 to rotate. The first baffle connecting rubber ring 15, which is fixedly installed on the outside of the first baffle 14, can achieve a better anti-leakage function. The rotation of the second movable shaft 17 can drive the second baffle 18 to rotate. The second movable shaft 17 can cooperate with the connecting block 16 to isolate the internal material, thereby realizing the anti-leakage function of the device.

[0023] In this embodiment: the blower 3 can work in conjunction with the blower pipe 4, and the airbag mounting block 11 can blow air into the airbag 12, thereby inflating the airbag 12 and blocking both sides of the first baffle 14, thus preventing the first baffle 14 from moving when closed. This method can improve the sealing effect of the device and prevent material leakage.

[0024] In this embodiment: by controlling the first electric telescopic rod 7 and the second electric telescopic rod 10 installed inside the first telescopic cavity 6 and the second telescopic cavity 9 to move towards the center of the device, the extension and retraction of the first electric telescopic rod 7 and the second electric telescopic rod 10 can abut against both sides of the second baffle 18, thereby cooperating with the connecting block 16 to fix the second baffle 18, thereby preventing the second baffle 18 from moving and causing leakage when closed.

[0025] The working principle and usage process of this utility model are as follows: After installation, the cylinder 20 retracts the movable rod 21, which in turn moves the movable rod connecting block 22. The movement of the connecting block 22 then moves the connecting rod 23. The connecting rod 23 slides within the connecting plate 24, causing the connecting plate 24 to move. This movement of the connecting plate 24, in conjunction with the movable connecting shaft 25, moves the traction block 26. The movement of the traction block 26, in conjunction with the first movable shaft connecting rod 27 and the second movable shaft connecting rod 28, rotates the first movable shaft 13 and the second movable shaft 17. The rotation of the first movable shaft 13 rotates the first baffle 14. The first baffle connecting rubber ring 15, fixedly installed on the outside of the first baffle 14, provides better leak prevention. The rotation of the second movable shaft 17 rotates the second baffle 18. The second movable shaft 17, in conjunction with the connecting... The locking block 16 isolates the interior with materials to achieve the device's leak-proof function. Then, by controlling the first electric telescopic rod 7 and the second electric telescopic rod 10 installed inside the first telescopic cavity 6 and the second telescopic cavity 9 to move towards the center of the device, the extension and retraction of the first electric telescopic rod 7 and the second electric telescopic rod 10 abut against both sides of the second baffle 18, thus cooperating with the connecting locking block 16 to fix the second baffle 18, preventing leakage caused by movement of the second baffle 18 when closed. Finally, the fan 3 works in conjunction with the fan pipe 4, and the airbag mounting block 11 inflates the airbag 12, causing it to expand and block both sides of the first baffle 14, preventing movement of the first baffle 14 when closed. This method improves the sealing effect of the device, thus preventing material leakage. All electrical equipment in this device is powered by an external power source.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A leak-tight pneumatic butterfly valve comprising a valve body (1), characterized in that: The side of the valve body (1) is fixedly installed with a stop block (2), the top of the valve body (1) is fixedly installed with a first valve body connecting block (5), the bottom of the valve body (1) is fixedly installed with a second valve body connecting block (8), the outer side of the valve body (1) is fixedly installed with an air bag mounting block (11), the inside of the air bag mounting block (11) is provided with an air bag (12), the inside of the valve body (1) is movably installed with a first movable shaft (13), one end of the first movable shaft (13) is fixedly installed with a first movable shaft connecting rod (27), the inside of the valve body (1) is fixedly installed with a connecting clamping block (16), the inside of the valve body (1) is movably installed with a second movable shaft (17), one end of the second movable shaft (17) is fixedly installed with a second movable shaft connecting rod (28), the outer side of the second movable shaft (17) is fixedly installed with a second baffle (18), the side of the valve body (1) is fixedly installed with a valve body connecting block (19), the inside of the valve body connecting block (19) is movably installed with a connecting rod (23), the inside of the stop block (2) is fixedly installed with a pneumatic cylinder (20), the inside of the pneumatic cylinder (20) is provided with a movable rod (21), and the two sides of the connecting rod (23) are fixedly installed with connecting plates (24).

2. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The side of the valve body (1) is fixedly installed with a fan (3), and the bottom of the fan (3) is fixedly connected with the top of the stop block (2).

3. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The inside of the first valve body connecting block (5) is fixedly installed with a first telescopic cavity (6), and the inside of the first telescopic cavity (6) is movably installed with a first electric telescopic rod (7).

4. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The inside of the second valve body connecting block (8) is fixedly installed with a second telescopic cavity (9), and the inside of the second telescopic cavity (9) is movably installed with a second electric telescopic rod (10).

5. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The top of the movable rod (21) is fixedly installed with a movable rod connecting block (22), and the top of the movable rod connecting block (22) is fixedly connected with the bottom of the connecting rod (23).

6. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The outer side of the first movable shaft (13) is fixedly installed with a first baffle (14), and the outer side of the first baffle (14) is fixedly installed with a first baffle connecting rubber ring (15).

7. A leak-proof pneumatic butterfly valve according to claim 1, characterized in that: The inside of the connecting plate (24) is movably installed with a movable connecting shaft (25), the outer side of the movable connecting shaft (25) is movably installed with a traction block (26), and one end of the traction block (26) is fixedly connected with one end of the first movable shaft connecting rod (27) and the second movable shaft connecting rod (28) on the inner side.

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