Fire-fighting butterfly valve adjusting mechanism for fire-fighting facility engineering

Abstract

The utility model discloses a fire-fighting butterfly valve adjusting mechanism for fire-fighting facility engineering, which comprises a valve body, a valve arranged in the valve body, a rotating rod fixedly connected to the valve, the rotating rod rotatably connected with the valve body, a fixed box fixed at the top end of the valve body, and a round seat fixedly connected to one end of the rotating rod extending into the fixed box. The top end of the round seat is fixedly connected with a connecting rod, the top end of the connecting rod is fixedly connected with a round plate, the top end of the round plate is fixedly connected with a pointer, the top end of the fixed box is provided with a sealing cover, a round groove is formed in the position, corresponding to the round plate, of the sealing cover, and the diameter of the round groove is smaller than that of the round plate. And a transparent plate is installed in the circular groove, scale marks are arranged on the transparent plate, the fixed box is connected with an adjusting plate through an adjusting assembly, a pointer points to the position on the scale marks, the opening degree of the valve is conveniently observed and accurately adjusted, and the use practicability of the valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and more specifically, to a fire butterfly valve regulating mechanism for fire protection facilities engineering. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used for on / off control of low-pressure pipeline media. A butterfly valve is a type of valve whose closing element is a disc that rotates around the valve shaft to achieve opening and closing. Butterfly valves are frequently used in pipelines for fire protection engineering.

[0003] A search revealed that Chinese utility model patent application number CN202320982021.2 discloses a fire-fighting butterfly valve adjustment mechanism, which includes a device housing and a pipe. A housing body is fixedly installed on one side of the device housing, a baffle is fixedly installed on one side of the device housing, a second bevel gear is fixedly connected to the outer wall of the rotating rod, a valve is fixedly installed at one end of the rotating rod, and a shim is fixedly installed inside the housing body.

[0004] When adjusting the valve, people cannot see the inside of the butterfly valve or its opening degree. They rely on experience to control the opening degree, which makes it difficult to accurately adjust the opening degree and reduces its practicality. In addition, since the first and second bevel gears are always in a meshed state, it is easy for outsiders to adjust the valve. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a fire butterfly valve adjustment mechanism for fire protection facilities engineering, so as to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting butterfly valve adjustment mechanism for fire protection facilities engineering, comprising a valve body, a valve inside the valve body, a rotating rod fixedly connected to the valve, the rotating rod being rotatably connected to the valve body, a fixed box fixedly fixed at the top of the valve body, a circular seat fixedly connected to one end of the rotating rod extending into the fixed box, a locking mechanism provided on the fixed box, a connecting rod fixedly connected to the top of the circular seat, a circular plate fixedly connected to the top of the connecting rod, a pointer fixedly connected to the top of the circular plate, a sealing cover installed at the top of the fixed box, a circular groove provided on the sealing cover at a position corresponding to the circular plate, the diameter of the circular groove being smaller than the diameter of the circular plate, a transparent plate installed inside the circular groove, and scale lines provided on the transparent plate, an adjustment plate connected to the fixed box via an adjustment component, the adjustment plate slidingly engaging with the fixed box, a drive component connecting the adjustment plate and the sealing cover to drive the rotating rod to rotate, and the pointer pointing to the position on the scale line facilitating observation of the valve opening, allowing for accurate adjustment of the valve opening, thus improving its practicality.

[0009] The present invention is further configured such that the adjusting component includes a first screw, the first screw is threadedly connected to the adjusting plate, the bottom end of the first screw is rotatably connected to the fixed box, the top end of the first screw is provided with a regular polygonal column, the sealing cover is rotatably connected to a first rotating shaft, and the bottom end of the first rotating shaft is provided with a regular polygonal groove adapted to the regular polygonal column, so as to facilitate the adjustment of the position of the driving component.

[0010] The present invention is further configured such that a small handle is fixedly connected to the top end of the first rotating shaft to facilitate the rotation of the first rotating shaft.

[0011] The present invention is further configured such that the driving assembly includes a first gear and a second gear, the adjusting plate is rotatably connected to a second rotating shaft, the top end of the second rotating shaft is fixedly connected to a square tube, the bottom end of the second rotating shaft is fixedly connected to a first gear, the second gear is fixedly connected to a rotating rod, the sealing cover is rotatably connected to a third rotating shaft, the bottom end of the third rotating shaft is fixedly connected to a square column, the square column is inserted into the inside of the square tube, which facilitates the rotation of the rotating rod and the valve, and facilitates the adjustment of the valve opening.

[0012] The present invention is further configured such that a large handle is fixedly connected to the top end of the third rotating shaft, which facilitates the rotation of the third rotating shaft.

[0013] The present invention is further configured such that the locking mechanism includes two telescopic rods and an adjusting seat. The two telescopic rods are fixedly installed inside the fixed box. The adjusting seat is fixedly connected to the side ends of the two telescopic rods. A locking pin is fixedly connected to one end of the adjusting seat near the round seat. Multiple locking grooves are evenly arranged on the outside of the round seat. A second screw is fixedly connected to the side end of the adjusting seat. A threaded tube is threadedly connected to the outside of the second screw. The threaded tube is rotatably connected to the fixed box. A rotating handle is fixedly connected to the side end of the threaded tube, which facilitates the fixing of the round seat, rotating rod and valve.

[0014] The present invention is further configured such that multiple limiting posts are fixedly connected inside the fixed box, which serve to limit the movement of the adjusting plate.

[0015] The present invention is further provided that a sealing gasket is provided between the sealing cover and the fixed box to ensure the sealing of the connection between the sealing cover and the fixed box.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a fire-fighting butterfly valve adjustment mechanism for fire protection facility engineering, which has the following beneficial effects:

[0018] 1. During the rotation of the rotating rod and valve by the drive component, the rotating rod drives the round seat, connecting rod, round plate and pointer to rotate. People can observe the position of the pointer through the transparent plate and judge the opening degree of the valve by observing the position of the pointer on the scale line. This makes it easier for people to accurately adjust the opening degree of the valve and improves its practicality.

[0019] 2. By rotating the small handle, the small handle drives the first screw, the regular polygonal column and the first screw to rotate. The rotation of the first screw causes the adjusting plate to slide inside the fixed box. The adjusting plate drives the corresponding structure on the drive assembly to move, so that the drive assembly and the rotating rod are separated, which can prevent outsiders from rotating the drive assembly to adjust the valve.

[0020] 3. By rotating the handle and the threaded tube counterclockwise, the threaded tube rotates and moves relative to the threaded tube. The second screw drives the adjusting seat and the locking pin to move, so that the locking pin is inserted into the corresponding locking groove. This facilitates the fixing of the round seat, the rotating rod and the valve, and ensures the stability of the valve after it is opened to a certain degree. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a fire-fighting butterfly valve adjustment mechanism for fire protection facilities engineering according to the present invention;

[0022] Figure 2 This is a structural diagram showing the assembly of the valve body, fixed box, adjusting plate, first screw, second rotating shaft, and square tube in this utility model.

[0023] Figure 3 This is a structural diagram showing the connection between the valve body, fixed box, round seat, connecting pipe, pressure plate, and pointer in this utility model.

[0024] Figure 4 This is a structural diagram showing the assembly of the valve body, rotating rod, circular seat, connecting rod, circular plate, and pointer in this utility model.

[0025] Figure 5 This is a schematic diagram of the locking mechanism in this utility model;

[0026] Figure 6 This is a structural diagram showing the combination of the sealing cover, the first rotating shaft, the third rotating shaft, and the square column in this utility model.

[0027] In the diagram: 1. Valve body; 2. Valve; 3. Rotating rod; 4. Fixed box; 5. Round seat; 6. Connecting rod; 7. Round plate; 8. Pointer; 9. Sealing cover; 10. Round groove; 11. Transparent plate; 12. Scale line; 13. Adjusting plate; 14. First screw; 15. Regular polygonal column; 16. First rotating shaft; 17. Regular polygonal groove; 18. Small handle; 19. First gear; 20. Second gear; 21. Second rotating shaft; 22. Square tube; 24. Third rotating shaft; 25. Square column; 26. Large handle; 27. Telescopic rod; 28. Adjusting seat; 29. ​​Locking post; 30. Locking groove; 31. Threaded tube; 32. Second screw; 33. Rotating handle; 34. Limiting post; 35. Sealing gasket. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-6A fire-fighting butterfly valve regulating mechanism for fire protection facilities includes a valve body 1, a valve 2 disposed inside the valve body 1, a rotating rod 3 fixedly connected to the valve 2, the rotating rod 3 being rotatably connected to the valve body 1, a fixed box 4 fixedly fixed to the top of the valve body 1, a circular seat 5 fixedly connected to one end of the rotating rod 3 extending into the fixed box 4, a locking mechanism disposed on the fixed box 4, a connecting rod 6 fixedly connected to the top of the circular seat 5, a circular plate 7 fixedly connected to the top of the connecting rod 6, a pointer 8 fixedly connected to the top of the circular plate 7, a sealing cover 9 installed on the top of the fixed box 4, a sealing gasket 35 disposed between the sealing cover 9 and the fixed box 4 to ensure the sealing of the connection between the sealing cover 9 and the fixed box 4, and a corresponding position on the sealing cover 9 corresponding to the circular plate 7. A circular groove 10 is provided, the diameter of which is smaller than that of the circular plate 7. The circular plate 7 blocks the circular groove 10, preventing people from observing the internal structure. A transparent plate 11 is installed inside the circular groove 10, and scale lines 12 are provided on the transparent plate 11. An adjusting plate 13 is connected to the fixed box 4 through an adjusting component. The adjusting plate 13 slides with the fixed box 4. Multiple limiting posts 34 are fixedly connected inside the fixed box 4, which limit the adjustment plate 13. The adjusting plate 13 and the sealing cover 9 are connected to a driving component that drives the rotating rod 3 to rotate. The pointer 8 points to the position on the scale line 12, which makes it easy to observe the opening degree of the valve 2 and make accurate adjustment of the valve 2 opening degree, thus improving its practicality.

[0032] Specifically, during the rotation of the rotating rod 3 and valve 2 by the drive assembly, the rotating rod 3 drives the round seat 5, connecting rod 6, round plate 7 and pointer 8 to rotate. People can observe the position of pointer 8 through the transparent plate 11 and judge the opening degree of valve 2 by observing the position of pointer 8 on the scale line 12. This makes it easier for people to accurately adjust the opening degree of valve 2 and improves its practicality.

[0033] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The drive assembly includes a first gear 19 and a second gear 20. An adjusting plate 13 is rotatably connected to a second rotating shaft 21. A square tube 22 is fixedly connected to the top end of the second rotating shaft 21. The first gear 19 is fixedly connected to the bottom end of the second rotating shaft 21. The second gear 20 is fixedly connected to the rotating rod 3. A third rotating shaft 24 is rotatably connected to the sealing cover 9. A square column 25 is fixedly connected to the bottom end of the third rotating shaft 24. The square column 25 is inserted into the inside of the square tube 22. A large handle 26 is fixedly connected to the top end of the third rotating shaft 24 to facilitate the rotation of the third rotating shaft 24. The large handle 26 facilitates the rotation of the third rotating shaft 24.

[0034] Specifically, by rotating the large throttle 26, the large throttle 26 drives the third rotating shaft 24, square column 25, square tube 22, second rotating shaft 21 and first gear 19 to rotate. The first gear 19 drives the second gear 20, rotating rod 3 and valve 2 to rotate, which facilitates the control of the opening and closing of the butterfly valve.

[0035] Please see Figure 1 , Figure 2 and Figure 6 The adjustment assembly includes a first screw 14, which is threadedly connected to the adjustment plate 13. The bottom end of the first screw 14 is rotatably connected to the fixed box 4. A regular polygonal post 15 is provided at the top end of the first screw 14. A first rotating shaft 16 is rotatably connected to the sealing cover 9. A regular polygonal groove 17 that matches the regular polygonal post 15 is provided at the bottom end of the first rotating shaft 16. A small handle 18 is fixedly connected to the top end of the first rotating shaft 16 to facilitate the rotation of the first rotating shaft 16.

[0036] Specifically, the small throttle 18 drives the first rotating shaft 16, the regular polygonal column 15 and the first screw 14 to rotate clockwise. The rotation of the first screw 14 causes the adjusting plate 13 to move upward. The adjusting plate 13 drives the second rotating shaft 21, the square tube 22 and the first gear 19 to move upward, so that the first gear 19 and the second gear 20 are separated, which can prevent outsiders from rotating the drive components to adjust the valve 2.

[0037] Please see Figure 3 and Figure 5 The locking mechanism includes two telescopic rods 27 and an adjusting seat 28. The two telescopic rods 27 are fixedly installed inside the fixed box 4. The adjusting seat 28 is fixedly connected to the side ends of the two telescopic rods 27. A locking post 29 is fixedly connected to one end of the adjusting seat 28 near the round seat 5. Multiple locking grooves 30 are evenly arranged on the outside of the round seat 5. A second screw 32 is fixedly connected to the side end of the adjusting seat 28. A threaded tube 31 is threadedly connected to the outside of the second screw 32. The threaded tube 31 is rotatably connected to the fixed box 4. A rotating handle 33 is fixedly connected to the side end of the threaded tube 31 to facilitate the fixing of the round seat 5, the rotating rod 3, and the valve 2.

[0038] Specifically, by rotating the handle 33 and the threaded tube 31 counterclockwise, the threaded tube 31 rotates, causing the second screw 32 to move closer to the round seat 5. The second screw 32 drives the adjusting seat 28 and the locking pin 29 to move, so that the locking pin 29 is inserted into the corresponding locking groove 30, which facilitates the fixation of the round seat 5, the rotating rod 3, and the valve 2, ensuring the stability of the valve 2 after it is opened to a certain degree. By rotating the handle 33 and the threaded tube 31 clockwise, the threaded tube 31 rotates, causing the second screw 32 to move away from the round seat 5. The second screw 32 drives the adjusting seat 28 and the locking pin 29 to move, so that the locking pin 29 is separated from the locking groove 30, which facilitates the rotation of the round seat 5, the rotating rod 3, and the valve 2 through the drive assembly.

[0039] In summary, when using the overall equipment:

[0040] The small throttle 18 drives the first rotating shaft 16, the regular polygonal column 15, and the first screw 14 to rotate counterclockwise. The rotation of the first screw 14 causes the adjusting plate 13 to move downward. The adjusting plate 13 drives the second rotating shaft 21, the square tube 22, and the first gear 19 to move upward. When the bottom end of the adjusting plate 13 contacts the top end of the multiple limiting columns 34, the first gear 19 meshes with the second gear 20. Then, the rotating handle 33 and the threaded tube 31 are rotated clockwise. The rotation of the threaded tube 31 causes the second screw 32 to move away from the round seat 5. The second screw 32 drives the adjusting seat 28 and the locking pin 29 to move, causing the locking pin 29 to separate from the locking groove 30. Then, the large throttle 26 is rotated. The large throttle 26 drives the third rotating shaft 24, the square column 25, the square tube 22, the second rotating shaft 21, and the first gear 19 to rotate. The first gear 19 drives the second gear 20, the rotating rod 3, and the valve 2 to rotate. At the same time, the rotating rod... 3 drives the circular seat 5, connecting rod 6, circular plate 7 and pointer 8 to rotate. People observe the position of pointer 8 through transparent plate 11. By observing the position of pointer 8 on the scale line 12, they judge the opening degree of valve 2. After opening valve 2 to a certain degree, rotate handle 33 and threaded tube 31 counterclockwise. The rotation of threaded tube 31 causes the second screw 32 to move closer to the side of the circular seat 5. The second screw 32 drives the adjusting seat 28 and the locking pin 29 to move, so that the locking pin 29 is inserted into the corresponding locking groove 30, fixing the circular seat 5, rotating rod 3 and valve 2. Then, the small handle 18 drives the first rotating shaft 16, regular polygonal column 15 and first screw 14 to rotate clockwise. The rotation of the first screw 14 causes the adjusting plate 13 to move upward. The adjusting plate 13 drives the second rotating shaft 21, square tube 22 and first gear 19 to move upward, so that the first gear 19 and the second gear 20 are separated.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting butterfly valve regulating mechanism for fire protection facilities, comprising a valve body (1), a valve (2) disposed inside the valve body (1), a rotating rod (3) fixedly connected to the valve (2), the rotating rod (3) being rotatably connected to the valve body (1), characterized in that: A fixed box (4) is fixed to the top of the valve body (1). A circular seat (5) is fixedly connected to one end of the rotating rod (3) extending into the fixed box (4). A locking mechanism is provided on the fixed box (4). A connecting rod (6) is fixedly connected to the top of the circular seat (5). A circular plate (7) is fixedly connected to the top of the connecting rod (6). A pointer (8) is fixedly connected to the top of the circular plate (7). A sealing cover (9) is installed on the top of the fixed box (4). The sealing cover (9) is connected to the circular plate (8). A circular groove (10) is provided at the corresponding position of the plate (7). The diameter of the circular groove (10) is smaller than the diameter of the circular plate (7). A transparent plate (11) is installed inside the circular groove (10). A scale line (12) is provided on the transparent plate (11). The fixed box (4) is connected to an adjusting plate (13) through an adjusting component. The adjusting plate (13) slides with the fixed box (4). The adjusting plate (13) and the sealing cover (9) are connected to a driving component that drives the rotating rod (3) to rotate.

2. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 1, characterized in that: The adjustment assembly includes a first screw (14), which is threadedly connected to the adjustment plate (13). The bottom end of the first screw (14) is rotatably connected to the fixed box (4). The top end of the first screw (14) is provided with a regular polygonal column (15). The sealing cover (9) is rotatably connected to a first rotating shaft (16). The bottom end of the first rotating shaft (16) is provided with a regular polygonal groove (17) that matches the regular polygonal column (15).

3. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 2, characterized in that: A small throttle (18) is fixedly connected to the top of the first rotating shaft (16).

4. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 1, characterized in that: The drive assembly includes a first gear (19) and a second gear (20). The adjusting plate (13) is rotatably connected to a second rotating shaft (21). A square tube (22) is fixedly connected to the top end of the second rotating shaft (21). The first gear (19) is fixedly connected to the bottom end of the second rotating shaft (21). The second gear (20) is fixedly connected to the rotating rod (3). A third rotating shaft (24) is rotatably connected to the sealing cover (9). A square column (25) is fixedly connected to the bottom end of the third rotating shaft (24). The square column (25) is inserted into the inside of the square tube (22).

5. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 4, characterized in that: The top end of the third rotating shaft (24) is fixedly connected to a large throttle (26).

6. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 1, characterized in that: The locking mechanism includes two telescopic rods (27) and an adjusting seat (28). The two telescopic rods (27) are fixedly installed inside the fixed box (4). The adjusting seat (28) is fixedly connected to the side ends of the two telescopic rods (27). A locking post (29) is fixedly connected to one end of the adjusting seat (28) near the round seat (5). Multiple locking slots (30) are evenly arranged on the outside of the round seat (5). A second screw (32) is fixedly connected to the side end of the adjusting seat (28). A threaded tube (31) is threadedly connected to the outside of the second screw (32). The threaded tube (31) is rotatably connected to the fixed box (4). A rotating handle (33) is fixedly connected to the side end of the threaded tube (31).

7. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 1, characterized in that: The fixed box (4) is internally fixedly connected with multiple limiting posts (34).

8. The fire-fighting butterfly valve regulating mechanism for fire protection facilities engineering according to claim 1, characterized in that: A sealing gasket (35) is provided between the sealing cover (9) and the fixed box (4).

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