Anti-falling wafer butterfly valve body

Abstract

The utility model relates to the technical field of valve equipment, in particular to an anti-falling wafer butterfly valve body which comprises a butterfly valve main body, a first connecting plate and a second connecting plate, and arc-shaped grooves are symmetrically formed in the side wall of the butterfly valve main body; through the arrangement of the first connecting plate, the arc-shaped grooves, the second connecting plate, the limiting connecting pieces, the second threaded holes, the fixing bolts and the damping blocks, the damping blocks below the two limiting connecting pieces are aligned to the two arc-shaped grooves respectively and abut against the arc-shaped grooves; then the first connecting plate and the second connecting plate abut against the two sides of the butterfly valve body correspondingly and are fixedly connected with the limiting connecting piece through a plurality of fixing bolts, a first threaded hole, a second threaded hole and a third threaded hole; the damping blocks in the arc-shaped grooves can play a role in buffering and damping while playing a role in limiting and stabilizing the two sides of the butterfly valve body, the situation that the fixing bolts fall off due to shaking of the butterfly valve body is avoided, and the connecting structures of the two sides of the butterfly valve body, the water inlet pipe and the water outlet pipe are more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a wafer butterfly valve body that prevents falling off. Background Art

[0002] A butterfly valve, also called a flap valve, is a simple structure regulating valve. A butterfly valve used for the on-off control of a low-pressure pipeline medium refers to a valve whose closing member is a disc and rotates around the valve shaft to achieve opening and closing. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical industry, and water treatment, but also in the cooling water system of thermal power plants.

[0003] After retrieval, the publication number: CN219994504U discloses a wafer butterfly valve body that prevents falling off. By setting elastic packing, it plays a role in buffering and shock absorption, can buffer and shock-absorb the impact force of water flow, and reduce the influence of the water flow impact force on the main body of the valve body; at the same time, it can make the end face of the fastening pressing plate closely fit with the end face of the connecting pipeline to ensure the sealing performance. However, the two sides of the main body of the valve body in the above prior art that do not fit with the end face of the connecting pipeline are not limited and fixed. When the water flow passes through the main body of the valve body, the generated vibration is still likely to cause the valve body to shake left and right and loosen the valve body connection bolts. In the long run, it will also cause the connection bolts to fall off and the main body of the valve body to separate from the connecting pipeline, and the connection structure between the main body of the valve body and the connecting pipeline is not stable enough.

[0004] To solve the above problems, the utility model proposes a wafer butterfly valve body that prevents falling off. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a wafer butterfly valve body that prevents falling off, so as to solve the technical problem of "the two sides of the main body of the valve body in the above prior art that do not fit with the end face of the connecting pipeline are not limited and fixed. When the water flow passes through the main body of the valve body, the generated vibration is still likely to cause the valve body to shake left and right and loosen the valve body connection bolts. In the long run, it will also cause the connection bolts to fall off and the main body of the valve body to separate from the connecting pipeline, and the connection structure between the main body of the valve body and the connecting pipeline is not stable enough" in the prior art.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0007] An anti - shedding wafer - type butterfly valve body, comprising a butterfly valve main body, a first connecting plate, and a second connecting plate. Arc - shaped grooves are symmetrically opened on the side wall of the butterfly valve main body. Two limit connectors are arranged outside the butterfly valve main body. Shock - absorbing blocks are fixedly connected to the opposite side walls of the two limit connectors. The shock - absorbing blocks are matched with the arc - shaped grooves. Six second - threaded holes are opened on the side walls of the two limit connectors. A plurality of fixing bolts are arranged outside the butterfly valve main body. A plurality of nuts matched with the fixing bolts are arranged outside the butterfly valve main body. A valve hole is opened at the center of the butterfly valve main body. A butterfly plate is arranged in the valve hole. A valve neck is fixedly connected to the upper end surface of the butterfly plate. A lower valve stem is fixedly connected to the lower end surface of the butterfly plate. A waterproof and airtight layer is arranged in the inner wall of the valve hole. The butterfly plate is slidably connected to the side wall of the waterproof and airtight layer. The side wall of the valve neck is rotatably connected to the inner walls of the butterfly valve main body and the waterproof and airtight layer respectively. A plurality of first - threaded holes are annularly and equidistantly opened on the side wall of the first connecting plate. A plurality of third - threaded holes are annularly and equidistantly opened on the side wall of the second connecting plate.

[0008] As a preferred technical solution of the present utility model, sealing washers are arranged between the butterfly valve main body and the first connecting plate and the second connecting plate respectively. Both of the two sealing washers are rubber ring blocks.

[0009] As a preferred technical solution of the present utility model, two ear plates are fixedly connected to the upper and lower end surfaces of the butterfly valve main body respectively. Ear - plate threaded holes matched with the first - threaded holes and the third - threaded holes are opened on the side walls of the four ear plates.

[0010] As a preferred technical solution of the present utility model, a water inlet pipe and a water outlet pipe are fixedly connected to the opposite sides of the first connecting plate and the second connecting plate respectively. A water inlet hole and a water outlet hole are opened on the side walls of the first connecting plate and the second connecting plate respectively. The water inlet hole is internally communicated with the water inlet pipe. The water outlet hole is internally communicated with the water outlet pipe.

[0011] As a preferred technical solution of the present utility model, a rotation hole matched with the lower valve stem is opened on the lower end surface of the butterfly valve main body. A sealing ring block is arranged in the inner wall of the rotation hole. The lower valve stem is rotatably connected to the inner wall of the sealing ring block.

[0012] As a preferred technical solution of the present utility model, both of the two shock - absorbing blocks are arc - shaped highly elastic rubber blocks.

[0013] The present utility model provides an anti - shedding wafer - type butterfly valve body, which has the following beneficial effects:

[0014] 1. By setting the first connecting plate, arc-shaped groove, second connecting plate, limit connecting piece, second threaded hole, fixing bolt, and shock-absorbing block, first align the shock-absorbing blocks below the two limit connecting pieces with the two arc-shaped grooves respectively and press them into the grooves. Then, press the first connecting plate and the second connecting plate against both sides of the butterfly valve body respectively, and realize the fixed connection with the limit connecting piece through multiple fixing bolts and the first threaded hole, second threaded hole, and third threaded hole. The shock-absorbing blocks in the arc-shaped grooves can play a role in limiting and stabilizing both sides of the butterfly valve body while also playing a role in buffering and shock absorption, avoiding the fixing bolts from falling off due to the shaking of the butterfly valve body, and making the connection structure between both sides of the butterfly valve body and the water inlet pipe and the water outlet pipe more stable;

[0015] 2. By setting four ear plates and ear plate threaded holes, after the first connecting plate and the second connecting plate are pressed against both sides of the butterfly valve body respectively, realize the threaded fixed connection of the first connecting plate, the second connecting plate, and the butterfly valve body through four fixing bolts in sequence with the first threaded hole, ear plate threaded hole, and third threaded hole, further improving the connection strength between the butterfly valve body and the first connecting plate and the second connecting plate. Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a pair-clamp butterfly valve body with anti-dropping proposed by the present utility model;

[0017] Figure 2 It is a front structural sectional view of a pair-clamp butterfly valve body with anti-dropping proposed by the present utility model;

[0018] Figure 3 It is a side structural sectional view of a pair-clamp butterfly valve body with anti-dropping proposed by the present utility model.

[0019] In the figure: 1 butterfly valve body, 2 first connecting plate, 3 second connecting plate, 4 water inlet pipe, 5 water outlet pipe, 6 sealing gasket, 7 valve neck, 8 butterfly plate, 9 waterproof and airtight layer, 10 ear plate, 11 arc-shaped groove, 12 limit connecting piece, 13 shock-absorbing block, 14 first threaded hole, 15 second threaded hole, 16 ear plate threaded hole, 17 third threaded hole, 18 fixing bolt, 19 lower valve stem. Detailed Embodiment

[0020] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Accordingly, a feature pointed out in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the illustrated feature. In addition, it should be noted that this specification describes many features. Although some features may be combined to show possible system designs, these features may also be used in other combinations not explicitly described. Accordingly, unless otherwise stated, the illustrated combinations are not intended to be limiting.

[0022] The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments:

[0023] Reference Figures 1-3 , an anti-drop wafer butterfly valve body, comprising a butterfly valve main body 1, a first connecting plate 2, and a second connecting plate 3. Arc-shaped grooves 11 are symmetrically formed on the side wall of the butterfly valve main body 1. Two limit connectors 12 are arranged outside the butterfly valve main body 1. Shock-absorbing blocks 13 are fixedly connected to the opposite side walls of the two limit connectors 12. The shock-absorbing blocks 13 are matched with the arc-shaped grooves 11. Six second threaded holes 15 are formed on the side walls of the two limit connectors 12. A plurality of fixing bolts 18 are arranged outside the butterfly valve main body 1. A plurality of nuts matching the fixing bolts 18 are arranged outside the butterfly valve main body 1. A valve hole is formed at the center of the butterfly valve main body 1. A butterfly plate 8 is arranged in the valve hole. A valve neck 7 is fixedly connected to the upper end surface of the butterfly plate 8. A lower valve stem 19 is fixedly connected to the lower end surface of the butterfly plate 8. A waterproof and airtight layer 9 is arranged in the inner wall of the valve hole. The side wall of the butterfly plate 8 is slidably connected to the side wall of the waterproof and airtight layer 9. The side wall of the valve neck 7 is rotatably connected to the inner walls of the butterfly valve main body 1 and the waterproof and airtight layer 9 respectively. A plurality of first threaded holes 14 are annularly formed at equal intervals on the side wall of the first connecting plate 2. A plurality of third threaded holes 17 are annularly formed at equal intervals on the side wall of the second connecting plate 3.

[0024] When water flows through the butterfly valve body 1 and it is necessary to limit and stabilize both sides of the butterfly valve body 1, the first connecting plate 2 and the second connecting plate 3 are respectively abutted against both sides of the butterfly valve body 1. Then, the shock-absorbing blocks 13 below the two limiting connecting pieces 12 are respectively aligned with the two arc-shaped grooves 11 and inserted into them. Next, a plurality of fixing bolts 18 are threaded into the first threaded holes 14 and then into the three second threaded holes 15 on the front and back sides of the limiting connecting pieces 12. Finally, a plurality of fixing bolts 18 are threaded into the third threaded holes 17 and the threaded fixed connection between the first connecting plate 2, the limiting connecting pieces 12, and the second connecting plate 3 is realized through a plurality of nuts. When the vibration generated by the water flow causes the butterfly valve body 1 to sway from side to side after the water flow passes through the butterfly valve body 1, the shock-absorbing blocks 13 on both sides can limit and stabilize the butterfly valve body 1 while reducing the left and right sway of the butterfly valve body 1 caused by the water flow impact, avoiding the slow detachment of the fixing bolts 18 due to the long-term left and right sway of the butterfly valve body 1, and further separating the butterfly valve body 1 from the first connecting plate 2 and the second connecting plate 3, making the connection structure between the two sides of the butterfly valve body 1 and the water inlet pipe 4 and the water outlet pipe 5 more stable. By rotating the valve neck 7, the butterfly plate 8 and the lower valve stem 19 can be controlled to rotate;

[0025] Furthermore, sealing washers 6 are provided between the butterfly valve body 1 and the first connecting plate 2 and the second connecting plate 3 respectively, and both of the two sealing washers 6 are rubber ring blocks.

[0026] By providing the sealing washers 6, the joints between the first connecting plate 2, the second connecting plate 3 and the side wall of the butterfly valve body 1 can be waterproof-sealed by the sealing washers 6 respectively;

[0027] Furthermore, two ear plates 10 are fixedly connected to the upper and lower end faces of the butterfly valve body 1 respectively, and ear plate threaded holes 16 matching the first threaded holes 14 and the third threaded holes 17 are provided on the side walls of the four ear plates 10.

[0028] By providing the four ear plates 10 and the ear plate threaded holes 16, after the first connecting plate 2 and the second connecting plate 3 are respectively abutted against both sides of the butterfly valve body 1, the threaded fixed connection between the first connecting plate 2, the second connecting plate 3 and the butterfly valve body 1 is realized through the four fixing bolts 18 in sequence with the first threaded holes 14, the ear plate threaded holes 16, and the third threaded holes 17, further improving the connection strength between the butterfly valve body 1 and the first connecting plate 2 and the second connecting plate 3;

[0029] Furthermore, a water inlet pipe 4 and a water outlet pipe 5 are respectively fixedly connected to the sides of the first connecting plate 2 and the second connecting plate 3 that are opposite to each other. Water inlet holes and water outlet holes are respectively provided on the side walls of the first connecting plate 2 and the second connecting plate 3. The water inlet holes are communicated with the inside of the water inlet pipe 4, and the water outlet holes are communicated with the inside of the water outlet pipe 5.

[0030] By setting the water inlet hole and the water outlet hole, the liquid can be discharged from the water inlet pipe 4 and the water outlet pipe 5 through the water inlet hole and the water outlet hole respectively;

[0031] Furthermore, a rotation hole matching the lower valve rod 19 is provided on the lower end surface of the butterfly valve body 1, a sealing ring block is arranged in the inner wall of the rotation hole, and the lower valve rod 19 is rotationally connected with the inner wall of the sealing ring block.

[0032] By setting the rotation hole and the sealing ring block, the lower valve rod 19 can rotate in the rotation hole and along the inner wall of the sealing ring block;

[0033] Furthermore, both of the two shock-absorbing blocks 13 are arc-shaped highly elastic rubber blocks.

[0034] By setting the two shock-absorbing blocks 13 as arc-shaped highly elastic rubber blocks, the arc-shaped highly elastic rubber blocks have good resilience and can better absorb the impact force generated when water flows into the butterfly valve body 1;

[0035] Furthermore, the valve neck 7 and the ear plate 10 have been fully disclosed in the publication number: CN219994504U, and will not be elaborated here.

[0036] The working principle of the present utility model: When water flows through the butterfly valve body 1 and it is necessary to limit and stabilize both sides of the butterfly valve body 1, the shock-absorbing blocks 13 below the two limit connectors 12 are respectively aligned with the two arc-shaped grooves 11 and inserted into them. Then, a plurality of fixing bolts 18 are threaded into the first threaded holes 14 and then into the three second threaded holes 15 on the front and back sides of the limit connectors 12. Finally, the plurality of fixing bolts 18 are threaded into the third threaded holes 17 and the threaded fixed connection between the first connecting plate 2, the limit connector 12, and the second connecting plate 3 is realized through a plurality of nuts. When the vibration generated by the water flow causes the butterfly valve body 1 to sway from side to side after the water flow passes through the butterfly valve body 1, the shock-absorbing blocks 13 on both sides can limit and stabilize the butterfly valve body 1 while reducing the left and right sway of the butterfly valve body 1 caused by the water flow impact, avoiding the gradual detachment of the fixing bolts 18 due to the long-term left and right sway of the butterfly valve body 1, and further separating the butterfly valve body 1 from the first connecting plate 2 and the second connecting plate 3, making the connection structure between both sides of the butterfly valve body 1 and the water inlet pipe 4 and the water outlet pipe 5 more stable;

[0037] Compared with the prior art, by providing the first connecting plate 2, the arc-shaped groove 11, the second connecting plate 3, the limit connecting piece 12, the second threaded hole 15, the fixing bolt 18, and the shock-absorbing block 13, first align the shock-absorbing blocks 13 below the two limit connecting pieces 12 with the two arc-shaped grooves 11 respectively and press them into the grooves. Then, press the first connecting plate 2 and the second connecting plate 3 against both sides of the butterfly valve body 1 respectively, and realize the fixed connection with the two limit connecting pieces 12 through the threaded cooperation of a plurality of fixing bolts 18 with the first threaded hole 14, the second threaded hole 15, and the third threaded hole 17. The shock-absorbing blocks 13 in the arc-shaped grooves 11 on both sides can play a role in buffering and shock absorption while limiting and stabilizing both sides of the butterfly valve body 1, avoiding the fixing bolts 18 falling off due to the long-term shaking of the butterfly valve body 1, and making the connection structure between both sides of the butterfly valve body 1 and the water inlet pipe 4 and the water outlet pipe 5 more stable.

[0038] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An anti-dropout wafer butterfly valve body, comprising a butterfly valve body (1), a first connecting plate (2), and a second connecting plate (3), characterized in that: The side wall of the butterfly valve body (1) is symmetrically provided with arc grooves (11); two limit connecting pieces (12) are arranged outside the butterfly valve body (1); shock absorbing blocks (13) are fixedly connected to the side walls on the opposite sides of the two limit connecting pieces (12); the shock absorbing blocks (13) match the arc grooves (11); six No. 2 threaded holes (15) are arranged on the side walls of the two limit connecting pieces (12); a plurality of fixing bolts (18) are arranged outside the butterfly valve body (1); a plurality of nuts matching the fixing bolts (18) are arranged outside the butterfly valve body (1); a valve is arranged at the center of the butterfly valve body (1). A butterfly plate (8) is arranged in the valve hole, the upper end surface of the butterfly plate (8) is fixedly connected to the valve neck (7), the lower end surface of the butterfly plate (8) is fixedly connected to the lower valve stem (19), a waterproof sealing layer (9) is arranged in the inner wall of the valve hole, the butterfly plate (8) is slidably connected to the side wall of the waterproof sealing layer (9), the side wall of the valve neck (7) is rotatably connected to the butterfly valve body (1) and the inner wall of the waterproof sealing layer (9), a plurality of No. 1 threaded holes (14) are equidistantly provided in an annular manner on the side wall of the first connecting plate (2), and a plurality of No. 3 threaded holes (17) are equidistantly provided in an annular manner on the side wall of the second connecting plate (3).

2. The anti-dropout wafer butterfly valve body according to claim 1 is characterized in that: Sealing gaskets (6) are provided between the butterfly valve body (1) and the first connecting plate (2) and the second connecting plate (3), and the two sealing gaskets (6) are both rubber ring blocks.

3. The anti-dropping wafer butterfly valve body according to claim 1 is characterized in that: Two ear plates (10) are fixedly connected to the upper and lower end surfaces of the butterfly valve body (1), and the side walls of the four ear plates (10) are provided with ear plate threaded holes (16) matching the No. 1 threaded hole (14) and the No. 3 threaded hole (17).

4. The anti-dropout wafer butterfly valve body according to claim 1, characterized in that: A water inlet pipe (4) and a water outlet pipe (5) are fixedly connected to the opposite sides of the first connecting plate (2) and the second connecting plate (3), and a water inlet hole and a water outlet hole are respectively opened on the side walls of the first connecting plate (2) and the second connecting plate (3), the water inlet hole is connected to the inside of the water inlet pipe (4), and the water outlet hole is connected to the inside of the water outlet pipe (5).

5. The anti-dropout wafer butterfly valve body according to claim 1, characterized in that: The lower end surface of the butterfly valve body (1) is provided with a rotation hole matching the lower valve stem (19), the inner wall of the rotation hole is provided with a sealing ring block, and the lower valve stem (19) is rotatably connected to the inner wall of the sealing ring block.

6. The anti-dropping wafer butterfly valve body according to claim 1, characterized in that: The two shock-absorbing blocks (13) are both arc-shaped high-elasticity rubber blocks.

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