Butterfly valve closing self-locking structure

Abstract

The utility model discloses a butterfly valve closing self-locking structure, and relates to the technical field of butterfly valve self-locking, the butterfly valve closing self-locking structure comprises a valve body, the top of the valve body is fixedly provided with a connecting block, the top of the connecting block is fixedly provided with a fixing block, the inside of the valve body is rotatably connected with a valve plate, the top of the fixing block is rotatably connected with a handle, and the handle is fixedly connected with the valve plate. The bottom of the handle is fixedly provided with an auxiliary block, the auxiliary block is connected with the fixing block in a sliding mode, and the bottom of the auxiliary block is provided with a T-shaped inserting block. The valve plate locking device has the advantages that the T-shaped inserting block is inserted into a plurality of grooves formed in the top of the fixing block, so that the position of the handle is fixed, and the valve plate is further locked; and a connecting plate is moved to drive a T-shaped inserting block to move, so that locking of the valve plate is relieved, the position of the T-shaped inserting block is reset through cooperation of an arranged reset spring, and therefore the T-shaped inserting block can be conveniently inserted into a fixing block.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve self-locking, in particular to a butterfly valve closed self-locking structure. Background Art

[0002] A butterfly valve is a valve whose closing part is a disc, which rotates around the valve axis to achieve opening and closing. It is mainly used for cutting off and throttling in pipelines. The opening and closing part of a butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening, closing or regulation.

[0003] Butterfly valves usually need to be adjusted by rotating the valve stem. However, during long-term use, the existing butterfly valves are prone to loosening due to wear and tear. Under fluid impact, the butterfly plate is prone to deflect at a certain angle, which changes the flow control. In addition, if the valve stem is accidentally moved during use, the butterfly plate will also deflect. For this reason, we propose a closed self-locking structure for butterfly valves. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a closed self-locking structure for a butterfly valve, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a butterfly valve closed self-locking structure, comprising a valve body, a connecting block is fixedly installed on the top of the valve body, a fixed block is fixedly installed on the top of the connecting block, a valve plate is rotatably connected to the inside of the valve body, a handle is rotatably connected to the top of the fixed block, an auxiliary block is fixedly installed on the bottom of the handle, the auxiliary block is slidably connected to the fixed block, a T-shaped plug-in block is provided at the bottom of the auxiliary block, a plurality of grooves matching the T-shaped plug-in blocks are provided on the top of the fixed block, the T-shaped plug-in block is inserted into the inside of the groove and slidably connected thereto, a T-shaped slide bar is fixedly installed on the bottom of the auxiliary block, the T-shaped slide bar is inserted into the inside of the T-shaped plug-in block and slidably connected thereto, two return springs are fixedly installed on the top of the T-shaped plug-in block and on the corresponding two sides of the T-shaped slide bar, and one end of the plurality of return springs away from the T-shaped plug-in block is fixedly connected to the auxiliary block, and a connecting plate is fixedly installed on one side of the T-shaped plug-in block, and the connecting plate passes through one side of the auxiliary block and is slidably connected thereto.

[0006] Preferably, valve shafts are fixedly installed on the corresponding two sides of the valve plate, and the two valve shafts are inserted into the interior of the valve body and rotatably connected thereto, a valve stem is fixedly installed on the bottom of the handle, and the valve stem is inserted into the interior of the valve body and rotatably connected thereto, the valve stem is fixedly connected to one of the valve shafts, and the valve stem passes through a connecting block and is rotatably connected thereto, and a first pipe and a second pipe are fixedly installed on the corresponding two sides of the valve body, respectively. By arranging the first pipe and the second pipe on both sides of the butterfly valve, it is convenient to arrange an auxiliary structure inside the first pipe, thereby improving the applicability of the device.

[0007] Preferably, a filter plate is provided inside the first pipe, and a side plate is fixedly installed on the outer side of the filter plate, the side plate is inserted into the inside of the first pipe and slidably connected thereto, an auxiliary structure is provided on the first pipe, the auxiliary structure includes a plurality of transmission gears, a gear ring is rotatably connected inside the first pipe, the gear ring is meshed with a plurality of transmission gears, a rotating rod is fixedly installed on one side of the plurality of transmission gears, the plurality of rotating rods are rotatably connected to the valve body, a baffle is fixedly installed on one side of the plurality of rotating rods away from the transmission gear, the plurality of baffles are rotatably connected to the first pipe, and the plurality of baffles are slidably connected to the side plates, and the synchronous rotation of the plurality of baffles restricts the position of the side plates, and at the same time facilitates the replacement of the side plates.

[0008] Preferably, a plurality of support blocks are fixedly installed on the inner wall of the first pipe, a T-shaped plug rod is provided on one side of the support blocks close to the side plate, a plurality of the T-shaped plug rods are inserted into the interior of the support block and slidably connected thereto, a plurality of the T-shaped plug rods are fixedly installed on one side away from the support block, a compression spring is provided on the side of the T-shaped plug rod away from the slider and located inside the support block, both ends of the compression spring are fixedly connected to the T-shaped plug rod and the support block respectively, a plurality of the sliders are slidably connected to the first pipe, and the cooperation of the slider, T-shaped plug rod and compression spring can activate the buffering effect when the side plate is impacted, and the side plate is reset by the compression spring, thereby realizing the vibration of the side plate, reducing the possibility of clogging of the side plate, and further preventing clogging of the valve body.

[0009] Preferably, the first pipe is internally rotatably connected to two bevel gears, the two bevel gears are meshed, one of the bevel gears is fixedly connected to one of the transmission gears, and a hand is fixedly installed on one side of the other bevel gear, the hand passes through one side of the first pipe and is rotatably connected thereto, a plurality of sliders are fixedly installed with a fixing rod on the side away from the T-shaped plug rod, a plurality of the hand passes through the side plate and is slidably connected thereto, and a sealing ring is provided at the junction of a plurality of the support blocks and the T-shaped plug rod, and the two bevel gears are rotated by rotating the hand, and the gear ring on the outer side of the transmission gear is driven to rotate, so that the baffles on one side of the plurality of rotating rods rotate synchronously, and the filter plate is more stable when in use by passing the fixing rod through the side plate.

[0010] Preferably, flanges are fixedly mounted on the outer sides of the first pipeline and the second pipeline, and the device is fixedly connected to the connecting pipe by cooperation of the provided flanges and existing fixing bolts.

[0011] The utility model provides a butterfly valve closed self-locking structure, which has the following beneficial effects:

[0012] 1. The closed self-locking structure of the butterfly valve is realized by inserting the T-shaped plug into the several grooves opened on the top of the fixed block, so as to fix the position of the handle and further lock the valve plate. The connecting plate is moved to drive the movement of the T-shaped plug position, thereby releasing the lock of the valve plate, and the position of the T-shaped plug is reset by the reset spring, so as to facilitate the insertion of the T-shaped plug into the fixed block.

[0013] 2. The butterfly valve has a closed self-locking structure. The liquid delivery pipe is fixedly connected to one side of the first pipe, and then the side plate is inserted into the interior of the first pipe. The filter plate is provided to filter the liquid. The baffles are rotated synchronously by turning the handle, which limits the position of the side plate and facilitates the replacement of the side plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0017] Figure 4 For this utility model Figure 2 The enlarged view of point B in the figure;

[0018] Figure 5 It is a side sectional view of the utility model;

[0019] Figure 6 It is an exploded view of the local structure of the utility model.

[0020] In the figure: 1. valve body; 2. connecting block; 3. fixing block; 4. valve stem; 5. valve shaft; 6. valve plate; 7. first pipeline; 8. handle; 9. auxiliary block; 10. T-type plug block; 11. T-type slide rod; 12. reset spring; 13. connecting plate; 14. filter plate; 15. side plate; 16. support block; 17. slide block; 18. T-type plug rod; 19. compression spring; 20. baffle; 21. turning rod; 22. transmission gear; 23. gear ring; 24. bevel gear; 25. flange; 26. groove; 27. second pipeline; 28. turning handle; 29. ​​fixing rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 6 The utility model provides a technical solution: a butterfly valve closed self-locking structure, including a valve body 1, a connecting block 2 is fixedly installed on the top of the valve body 1, a fixing block 3 is fixedly installed on the top of the connecting block 2, a valve plate 6 is rotatably connected inside the valve body 1, a handle 8 is rotatably connected to the top of the fixing block 3, an auxiliary block 9 is fixedly installed on the bottom of the handle 8, the auxiliary block 9 is slidably connected to the fixing block 3, a T-shaped plug 10 is arranged at the bottom of the auxiliary block 9, a plurality of grooves 26 cooperating with the T-shaped plug 10 are opened on the top of the fixing block 3, and the T-shaped plug 10 is inserted into the interior of the groove 26 and is slidably connected thereto, a T-shaped slide bar 11 is fixedly installed at the bottom of the auxiliary block 9, the T-shaped slide bar 11 is inserted into the interior of the T-shaped plug block 10 and is slidably connected thereto, two return springs 12 are fixedly installed on the top of the T-shaped plug block 10 and on the corresponding two sides of the T-shaped slide bar 11, and one end of the return springs 12 away from the T-shaped plug block 10 is fixedly connected to the auxiliary block 9, and a connecting plate 13 is fixedly installed on one side of the T-shaped plug block 10, and the connecting plate 13 passes through one side of the auxiliary block 9 and is slidably connected thereto.

[0023] Valve shafts 5 are fixedly installed on the corresponding two sides of the valve plate 6, and the two valve shafts 5 are inserted into the interior of the valve body 1 and are rotatably connected thereto. A valve stem 4 is fixedly installed at the bottom of the handle 8, and the valve stem 4 is inserted into the interior of the valve body 1 and is rotatably connected thereto. The valve stem 4 is fixedly connected to one of the valve shafts 5, and the valve stem 4 passes through the connecting block 2 and is rotatably connected thereto. The first pipe 7 and the second pipe 27 are fixedly installed on the corresponding two sides of the valve body 1 respectively. By arranging the first pipe 7 and the second pipe 27 on both sides of the butterfly valve, it is convenient to arrange an auxiliary structure inside the first pipe 7, thereby improving the applicability of the device.

[0024] A filter plate 14 is provided inside the first pipe 7, and a side plate 15 is fixedly installed on the outer side of the filter plate 14. The side plate 15 is inserted into the first pipe 7 and slidably connected thereto. An auxiliary structure is provided on the first pipe 7, and the auxiliary structure includes a plurality of transmission gears 22. A gear ring 23 is rotatably connected inside the first pipe 7, and the gear ring 23 meshes with the plurality of transmission gears 22. A rotating rod 21 is fixedly installed on one side of the plurality of transmission gears 22. The plurality of rotating rods 21 are rotatably connected to the valve body 1, and a baffle 20 is fixedly installed on one side of the plurality of rotating rods 21 away from the transmission gear 22. The plurality of baffles 20 are rotatably connected to the first pipe 7, and the plurality of baffles 20 are slidably connected to the side plate 15. The synchronous rotation of the plurality of baffles 20 limits the position of the side plate 15, and at the same time facilitates the replacement of the side plate 15.

[0025] A plurality of support blocks 16 are fixedly installed on the inner wall of the first pipe 7, and a T-shaped plug rod 18 is provided on one side of the support blocks 16 close to the side plate 15. The T-shaped plug rods 18 are inserted into the interior of the support block 16 and slidably connected thereto, and a slider 17 is fixedly installed on one side of the T-shaped plug rod 18 away from the support block 16. A compression spring 19 is provided on the side of the T-shaped plug rod 18 away from the slider 17 and located inside the support block 16. The two ends of the compression spring 19 are respectively fixedly connected to the T-shaped plug rod 18 and the support block 16, and the plurality of sliders 17 are slidably connected to the first pipe 7. The provided slider 17, T-shaped plug rod 18 and compression spring 19 cooperate to activate the buffering effect when the side plate 15 is impacted, and the provided compression spring 19 is used to reset the side plate 15, thereby realizing the vibration of the side plate 15, reducing the possibility of blockage of the side plate 15, and further preventing the valve body 1 from being blocked.

[0026] The first pipe 7 is internally rotatably connected to two bevel gears 24, which are meshed, one of which is fixedly connected to one of the transmission gears 22, and a hand 28 is fixedly installed on one side of the other bevel gear 24, which passes through one side of the first pipe 7 and is rotatably connected thereto. A fixing rod 29 is fixedly installed on the side of the sliders 17 away from the T-shaped plug rod 18, and a plurality of hand 28s pass through the side plate 15 and are slidably connected thereto. A sealing ring is provided at the intersection of the plurality of support blocks 16 and the T-shaped plug rod 18. The two bevel gears 24 are rotated by rotating the hand 28, and the gear ring 23 on the outer side of the transmission gear 22 is driven to rotate, so that the baffles 20 on one side of the plurality of rotating rods 21 rotate synchronously, and the fixing rod 29 passes through the side plate 15 to make the filter plate 14 more stable when in use. A flange 25 is fixedly installed on the outer side of the first pipe 7 and the second pipe 27, and the device is fixedly connected to the connecting pipe by the provided flange 25 and the existing fixing bolts.

[0027] In summary, the butterfly valve has a closed self-locking structure. When in use, the device is fixedly connected to the connecting pipe by the provided flange 25 and the existing fixing bolts, and the liquid delivery pipe is fixedly connected to one side of the first pipeline 7, so that the auxiliary structure provided inside the first pipeline 7 plays a filtering effect. The side plate 15 is inserted into the interior of the first pipeline 7, and the filtering effect is played by the provided filter plate 14. The two bevel gears 24 are rotated by rotating the handle 28, and the gear ring 23 on the outer side of the transmission gear 22 is driven to rotate, so that the baffles 20 on one side of the multiple rotating rods 21 rotate synchronously, which limits the position of the side plate 15 and facilitates the replacement of the side plate 15. The provided slider 17, T-shaped plug rod 18 and compression spring 19 cooperate to start the buffering effect when the side plate 15 is impacted, and the provided compression spring 19 is used to reset the side plate 15, so as to achieve the vibration of the side plate 15, reduce the possibility of blockage of the side plate 15, and further prevent the valve body 1 from being blocked.

[0028] The angle of the valve plate 6 can be adjusted by rotating the handle 8. At the same time, a plurality of grooves 26 cooperating with the T-shaped plug 10 are provided on the top of the fixed block 3. The T-shaped plug 10 is moved out from the interior of the fixed block 3 by moving the position of the connecting plate 13. The position of the T-shaped plug 10 is moved by a plurality of reset springs 12, so that the T-shaped plug 10 is inserted into the interior of the fixed block 3 to fix the position of the handle 8, and further lock the valve plate 6 when opening and closing, which is more convenient to use.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A butterfly valve closed self-locking structure, comprising a valve body (1), characterized in that: A connecting block (2) is fixedly mounted on the top of the valve body (1), a fixing block (3) is fixedly mounted on the top of the connecting block (2), a valve plate (6) is rotatably connected to the inside of the valve body (1), a handle (8) is rotatably connected to the top of the fixing block (3), an auxiliary block (9) is fixedly mounted on the bottom of the handle (8), the auxiliary block (9) is slidably connected to the fixing block (3), a T-shaped plug (10) is arranged at the bottom of the auxiliary block (9), a plurality of grooves (26) cooperating with the T-shaped plug (10) are provided on the top of the fixing block (3), and the T-shaped plug (10) is inserted into the grooves (26). The auxiliary block (9) is fixedly mounted with a T-shaped slide bar (11) at the bottom, the T-shaped slide bar (11) is inserted into the T-shaped plug block (10) and is slidably connected thereto, two return springs (12) are fixedly mounted on the top of the T-shaped plug block (10) and on the two corresponding sides of the T-shaped slide bar (11), and one end of the return springs (12) away from the T-shaped plug block (10) is fixedly connected to the auxiliary block (9), and a connecting plate (13) is fixedly mounted on one side of the T-shaped plug block (10), and the connecting plate (13) passes through one side of the auxiliary block (9) and is slidably connected thereto.

2. A butterfly valve closed self-locking structure according to claim 1, characterized in that: The valve plate (6) is fixedly provided with valve shafts (5) on both corresponding sides, and the two valve shafts (5) are inserted into the interior of the valve body (1) and are rotatably connected thereto. A valve stem (4) is fixedly provided at the bottom of the handle (8), and the valve stem (4) is inserted into the interior of the valve body (1) and is rotatably connected thereto. The valve stem (4) is fixedly connected to one of the valve shafts (5), and the valve stem (4) passes through the connecting block (2) and is rotatably connected thereto. The valve body (1) is fixedly provided with a first pipe (7) and a second pipe (27) on both corresponding sides, respectively.

3. A butterfly valve closed self-locking structure according to claim 2, characterized in that: A filter plate (14) is arranged inside the first pipe (7), a side plate (15) is fixedly mounted on the outer side of the filter plate (14), the side plate (15) is inserted into the first pipe (7) and is slidably connected thereto, an auxiliary structure is arranged on the first pipe (7), the auxiliary structure comprises a plurality of transmission gears (22), a gear ring (23) is rotatably connected inside the first pipe (7), the gear ring (23) is meshed with the plurality of transmission gears (22), a rotating rod (21) is fixedly mounted on one side of the plurality of transmission gears (22), the plurality of rotating rods (21) are rotatably connected to the valve body (1), a baffle plate (20) is fixedly mounted on one side of the plurality of rotating rods (21) away from the transmission gear (22), the plurality of baffle plates (20) are rotatably connected to the first pipe (7), and the plurality of baffle plates (20) are slidably connected to the side plate (15).

4. A butterfly valve closed self-locking structure according to claim 3, characterized in that: A plurality of support blocks (16) are fixedly mounted on the inner wall of the first pipe (7); a T-shaped plug rod (18) is arranged on one side of the plurality of support blocks (16) close to the side plate (15); the plurality of T-shaped plug rods (18) are inserted into the interior of the support block (16) and are slidably connected thereto; a sliding block (17) is fixedly mounted on one side of the plurality of T-shaped plug rods (18) away from the support block (16); a compression spring (19) is arranged on one side of the T-shaped plug rod (18) away from the sliding block (17) and located inside the support block (16); two ends of the compression spring (19) are fixedly connected to the T-shaped plug rod (18) and the support block (16) respectively; and the plurality of sliding blocks (17) are slidably connected to the first pipe (7).

5. A butterfly valve closed self-locking structure according to claim 4, characterized in that: Two bevel gears (24) are rotatably connected inside the first pipe (7), and the two bevel gears (24) are meshed, one of the bevel gears (24) is fixedly connected to one of the transmission gears (22), and a hand (28) is fixedly installed on one side of the other bevel gear (24), and the hand (28) passes through one side of the first pipe (7) and is rotatably connected thereto, a plurality of sliders (17) are fixedly installed with a fixing rod (29) on one side away from the T-shaped insertion rod (18), and a plurality of hand (28) passes through the side plate (15) and is slidably connected thereto, and a sealing ring is provided at the intersection of a plurality of support blocks (16) and the T-shaped insertion rod (18).

6. A butterfly valve closed self-locking structure according to claim 2, characterized in that: Flanges (25) are fixedly mounted on the outer sides of the first pipeline (7) and the second pipeline (27).

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