Anti-drop flange butterfly valve

Abstract

The utility model discloses a kind of anti-drop flange butterfly valves, including valve body, the upper surface of the valve body is fixedly installed operation cylinder, the both ends of the valve body are fixedly connected with installation flange, the surface of the installation flange is fixedly installed with butt joint flange, the outside of the butt joint flange is fixedly welded with pipeline, the inside of the installation flange and butt joint flange is equipped with mounting hole, the outside of the butt joint flange is equipped with clamping counterbore, the inside of the mounting hole is inserted with connecting bolt, the end of the connecting bolt is screw-mounted with mounting nut, the side surface of installation flange is tightly installed by the mounting nut, the both ends of the valve body are equipped with anti-drop assembly, the anti-drop assembly includes limit plate and hexagonal groove distributed on the surface of limit plate, the hexagonal groove is sleeved on the outer surface of mounting nut, the inside of the limit plate is equipped with sliding hole, can be installed after alignment after split processing, simple and efficient, also convenient for butt joint installation to prevent drop, safe and stable.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to an anti-detachment flange butterfly valve. Background Technology

[0002] Flanged butterfly valves are simple in structure, small in size, and light in weight, consisting of only a few parts. They can be quickly opened and closed with just a 90° rotation, making them easy to operate. These valves also have excellent fluid control characteristics. The butterfly plate of the valve is installed in the diameter direction of the pipeline. In actual installation, it is connected and fixed using flange bolts. However, a type of anti-detachment flanged butterfly valve with authorization announcement number CN218543209 U uses a positioning cylinder on the side of the flange combined with internal locking blocks for limiting support. This makes it impossible to process and assemble the valve in parts, resulting in a complex local structure that affects processing efficiency, hinders maintenance and replacement, and has poor adaptability. Therefore, we propose an anti-detachment flanged butterfly valve. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides an anti-detachment flange butterfly valve. This utility model solves the problems mentioned in the background section.

[0004] This utility model discloses an anti-detachment flange butterfly valve, comprising a valve body, an operating cylinder fixedly mounted on the upper surface of the valve body, mounting flanges fixedly connected to both ends of the valve body, a mating flange fixedly mounted on the surface of the mounting flange, a pipe fixedly welded to the outer side of the mating flange, mounting holes provided inside the mounting flange and the snap-fit ​​countersunk hole provided on the outer side of the mating flange, a connecting bolt inserted into the mounting hole, a mounting nut threaded onto the end of the connecting bolt, the mounting nut pressing against one side surface of the mounting flange, anti-detachment components provided at both ends of the valve body, the anti-detachment components including a limiting plate and hexagonal grooves distributed on the surface of the limiting plate, the hexagonal grooves fitting onto the outer surface of the mounting nut, a sliding hole provided inside the limiting plate, the sliding hole rotatably fitting onto both ends of the outer surface of the valve body, and the limiting plate pressing against the side of the mounting flange.

[0005] In the above scheme, a clamping assembly is provided on the outer side of the limiting plate. The clamping assembly includes a threaded cylinder, a threaded head, and a clamping rod fixedly connected to the rear end of the threaded head. The clamping rod is threadedly installed inside the threaded cylinder through the threaded head.

[0006] In the above scheme, the threaded cylinder is fixedly connected to the outer surface of the limiting plate and is offset from the hexagonal groove.

[0007] In the above scheme, the end of the clamping rod is provided with an adjustment through hole, and the clamping rod is clamped to the outer surface of the limiting plate.

[0008] In the above scheme, a circular block is fixedly connected to the rear end of the clamping rod, and a compression spring is fixedly connected to the surface of the circular block.

[0009] In the above scheme, a support cylinder is slidably sleeved on the outer surface of the circular block, and the support cylinder is sleeved on the outer surface of the compression spring.

[0010] In the above scheme, there are four support cylinders, which are evenly distributed at equal angles on both sides of the outer surface of the valve body.

[0011] The advantages and beneficial effects of this utility model in the above solution are as follows: This utility model provides an anti-detachment flange butterfly valve, which connects the mounting flanges at both ends of the valve body to the docking flange and connecting bolts, and uses the combination to position the pipeline to the end position. In addition, combined with the anti-detachment components at both ends, it can be installed separately and then snapped in for positioning, preventing the nuts from loosening and falling off. It is stable and efficient. Compared with the prior art, it can be processed separately and then installed in alignment, which is simple and efficient. It is also convenient to dock for anti-detachment installation, which is safe and stable. Attached Figure Description

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a partial cross-sectional view of the anti-detachment component connection of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting plate of this utility model; Figure 5 This is an internal cross-sectional view of the clamping assembly of this utility model.

[0014] In the diagram: Valve body 1, Operating cylinder 11, Mounting flange 12, Connecting flange 13, Pipe 14, Mounting hole 15, Connecting bolt 16, Mounting nut 17, Snap-fit ​​countersunk hole 18, Anti-detachment component 2, Limiting plate 21, Hexagonal groove 22, Sliding hole 23, Tightening component 3, Threaded cylinder 31, Threaded head 32, Tightening rod 33, Adjusting through hole 34, Circular block 35, Compression spring 36, Support cylinder 37. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] like Figure 1-5 As shown, this utility model is an anti-detachment flange butterfly valve, including a valve body 1. An operating cylinder 11 is fixedly installed on the upper surface of the valve body 1, through which a valve stem can be installed. A handwheel is installed at the upper end, which rotates the internal valve plate to control opening and closing. (Further details omitted). Mounting flanges 12 are fixedly connected to both ends of the valve body 1. A mating flange 13 is fixedly installed on the surface of the mounting flange 12, allowing for separate installation and positioning. This enables the valve body 1 of the butterfly valve to be aligned and installed onto the pipeline 14, allowing for opening and closing to control the flow of media. This is convenient and efficient. The mating flange 13... A pipe 14 is fixedly welded to the outside. Both the mounting flange 12 and the mating flange 13 have mounting holes 15 inside. The mating flange 13 has a snap-fit ​​countersunk hole 18 on its outer side. A connecting bolt 16 is inserted into the mounting hole 15, and a mounting nut 17 is threaded onto the end of the connecting bolt 16. During installation, the connecting bolt 16 can be inserted into the mounting hole 15, while its end is snapped into the snap-fit ​​countersunk hole 18 to prevent slippage and rotation. The mounting nut 17 is then connected from the other end to lock and secure the flange 14 in place. The valve body 1 is positioned in combination with the flange 13, facilitating separate installation and use. It is highly efficient and stable. The mounting nut 17 is tightened against one side of the mounting flange 12. Anti-detachment components 2 are provided at both ends of the valve body 1. These components limit the mounting nut 17, preventing it from loosening and falling off, ensuring high stability. The anti-detachment component 2 includes a limiting plate 21 and hexagonal grooves 22 distributed on the surface of the limiting plate 21. The hexagonal grooves 22 can be fitted onto the mounting nut 17 for limiting, facilitating connection and use. The hexagonal grooves 22 fit onto the outer surface of the mounting nut 17. The limiting plate 21 has a sliding hole 23 inside. With the sliding hole 23, the limiting plate 21 can be processed first, then fitted onto the two ends of the valve body 1, and finally the flange 12 can be welded on. It can be processed separately and then assembled. The structure is simple, easy to form, and highly adaptable. The sliding hole 23 is fitted onto the surface of the valve body 1. The position of the hexagonal groove 22 can be adjusted by rotating the limiting plate 21. It can also be laterally slid for fitting. The sliding hole 23 is rotated and fitted onto the two ends of the outer surface of the valve body 1. The limiting plate 21 is pressed against the side of the flange 12. During the specific connection, first align the valve body 1 with the reserved position on the pipeline 14, and align the mounting flanges 12 at both ends with the surfaces of the mating flanges 13. Then, install the connecting bolts 16 and the mounting nuts 17 to lock and fix them in place. This allows for connection and positioning. Then, manually adjust the position of the limiting plate 21 and fit the set hexagonal grooves 22 onto the corresponding mounting nuts 17. This allows for combined positioning, preventing loosening due to rotation, ensuring safety and stability. In this way, the limiting plate 21 can be pressed against the surfaces of the mounting flanges 12 at both ends to achieve locking and braking, thereby preventing disengagement and providing high adaptability. Furthermore, the outer side of the limiting plate 21 is provided with a clamping component 3. The clamping component 3 includes a threaded cylinder 31, a threaded head 32, and a clamping rod 33 fixedly connected to the rear end of the threaded head 32. The clamping rod 33 is threaded into the inside of the threaded cylinder 31 through the threaded head 32. The clamping component 3 is connected to the limiting plate 21, and can be assembled and positioned separately from the outside, which is conducive to assisting clamping and limiting, and is stable and efficient. Furthermore, the threaded cylinder 31 is fixedly connected to the outer surface of the limiting plate 21 and is offset from the hexagonal groove 22; Furthermore, the end of the clamping rod 33 is provided with an adjustment through hole 34. The clamping rod 33 clamps against the outer surface of the limiting plate 21. The adjustment through hole 34 provided in the clamping rod 33 facilitates the rotation of the clamping rod 33 for threaded installation, which is convenient for operation. In the specific connection, the threaded head 32 can be aligned with the inside of the threaded cylinder 31, and then the crossbar can be inserted into the adjustment through hole 34 to facilitate the rotation of the thread for installation and fixation. The clamping rod 33 can be connected to the end position of the threaded cylinder 31, thereby clamping it against the surface of the limiting plate 21, which is conducive to clamping at both ends and convenient for combination use. Furthermore, a circular block 35 is fixedly connected to the rear end of the clamping rod 33, and a compression spring 36 is fixedly connected to the surface of the circular block 35; Furthermore, a support cylinder 37 is slidably sleeved on the outer surface of the circular block 35. The support cylinder 37 is sleeved on the outer surface of the compression spring 36, which can provide auxiliary support and facilitate integrated connection and positioning. Furthermore, there are four support cylinders 37, which are evenly distributed at equal angles on both sides of the outer surface of the valve body 1. By connecting the circular block 35 and the compression spring 36 with the top clamping rod 33 and sleeved with the support cylinder 37, the two top clamping rods 33 can be connected together. Combined with the internal compression spring 36, they are pressed against both ends. The top clamping rod 22 moves to both ends, thereby pushing the limit plates 21 at both ends to press against the side of the mounting flange 12. The mounting nuts 17 can then be sleeved for limit support, which is convenient and stable. It can be installed and fixed separately, thus distributing to the outer position of the valve body 1, providing balanced support and positioning, and has high adaptability.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flanged butterfly valve with anti-detachment feature, comprising a valve body (1), characterized in that, An operating cylinder (11) is fixedly installed on the upper surface of the valve body (1). Both ends of the valve body (1) are fixedly connected to mounting flanges (12). A mating flange (13) is fixedly installed on the surface of the mounting flange (12). A pipe (14) is fixedly welded to the outside of the mating flange (13). Mounting holes (15) are provided inside both the mounting flange (12) and the mating flange (13). A snap-fit ​​countersunk hole (18) is provided on the outside of the mating flange (13). A connecting bolt (16) is inserted into the mounting hole (15). The end of the connecting bolt (16)... A mounting nut (17) is threaded on and presses against one side surface of the mounting flange (12). The valve body (1) is provided with anti-detachment components (2) at both ends. The anti-detachment components (2) include a limiting plate (21) and hexagonal grooves (22) distributed on the surface of the limiting plate (21). The hexagonal grooves (22) are sleeved on the outer surface of the mounting nut (17). The limiting plate (21) is provided with a sliding hole (23) inside. The sliding hole (23) is rotatably sleeved on both ends of the outer surface of the valve body (1). The limiting plate (21) presses against the side of the mounting flange (12).

2. The anti-detachment flange butterfly valve according to claim 1, characterized in that, The outer side of the limiting plate (21) is provided with a clamping assembly (3). The clamping assembly (3) includes a threaded cylinder (31), a threaded head (32), and a clamping rod (33) fixedly connected to the rear end of the threaded head (32). The clamping rod (33) is threadedly installed inside the threaded cylinder (31) through the threaded head (32).

3. The anti-detachment flange butterfly valve according to claim 2, characterized in that, The threaded cylinder (31) is fixedly connected to the outer surface of the limiting plate (21) and is offset from the hexagonal groove (22).

4. The anti-detachment flange butterfly valve according to claim 2, characterized in that, The end of the clamping rod (33) is provided with an adjustment through hole (34), and the clamping rod (33) clamps the outer surface of the limiting plate (21).

5. The anti-detachment flange butterfly valve according to claim 2, characterized in that, A circular block (35) is fixedly connected to the rear end of the clamping rod (33), and a compression spring (36) is fixedly connected to the surface of the circular block (35).

6. The anti-detachment flange butterfly valve according to claim 5, characterized in that, The outer surface of the circular block (35) is slidably fitted with a support cylinder (37), which is fitted onto the outer surface of the compression spring (36).

7. The anti-detachment flange butterfly valve according to claim 6, characterized in that, There are four support cylinders (37), which are evenly distributed at equal angles on both sides of the outer surface of the valve body (1).

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