Butterfly valve convenient to maintain

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to a butterfly valve convenient to maintain, which comprises a butterfly valve body, two connecting rings are arranged on the butterfly valve body, a connecting assembly used for connecting the connecting rings with a pipeline is arranged on the outer sides of the connecting rings, and the connecting assembly comprises a fixed clamp, a movable clamp, a connecting clamp and a sealing strip. The fixing clamp is fixedly connected with the butterfly valve body; by unfolding the connecting assembly, the purpose of connecting the butterfly valve body and a pipeline can be achieved, the butterfly valve body is easier and more convenient to mount and dismount, the butterfly valve body is convenient to maintain, meanwhile, the multiple sealing strips can be tightly attached to the connecting position of the connecting ring and the flange, and the sealing effect is better. Therefore, the sealing strip can seal the joint of the butterfly valve body and the pipeline, the sealing performance between the butterfly valve body and the pipeline can be improved, and the sealing performance between the butterfly valve body and the pipeline can be improved while the butterfly valve body and the pipeline are connected through the connecting assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of butterfly valves, and in particular relates to a butterfly valve which is easy to maintain. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member as a disc, which rotates around the valve axis to achieve opening and closing. When installing a butterfly valve, the flanges on both sides are connected to the flanges at the end of the pipeline by several screws. Due to the large number of screws, it takes a lot of time to disassemble the butterfly valve when repairing it, and it also takes a lot of time to install the butterfly valve after the repair is completed, which affects work efficiency. In addition, the sealing of the butterfly valve during use is extremely important, and the sealing ring in the butterfly valve will age or be damaged after a certain period of use, which will cause leakage. Utility Model Content

[0003] The utility model provides a butterfly valve which is easy to maintain. The purpose of connecting the butterfly valve body and the pipeline can be achieved by unfolding the connecting assembly, so that the installation and disassembly of the butterfly valve body are simpler and faster, and the butterfly valve body is easy to maintain. At the same time, a plurality of sealing strips will be tightly attached to the connection between the connecting ring and the flange, so that the sealing strips can seal the connection between the butterfly valve body and the pipeline, which is beneficial to improve the sealing between the butterfly valve body and the pipeline. Therefore, the connecting assembly can be used to connect the butterfly valve body and the pipeline while improving the sealing between the butterfly valve body and the pipeline.

[0004] The utility model provides the following technical solution: it includes a butterfly valve body, which is characterized in that: two connecting rings are provided on the butterfly valve body, and a connecting assembly for connecting the connecting ring to a pipeline is provided on the outer side of the connecting ring, and the connecting assembly includes a fixed clamp, a movable clamp, a connecting clamp and a sealing strip, the fixed clamp is fixedly connected to the butterfly valve body, and the fixed clamp, a plurality of the movable clamps and the connecting clamp are connected by a plurality of sealing strips, and two connecting seats are provided on the top of the butterfly valve body, and a limit block for limiting the fixed clamp and the connecting clamp is rotatably connected to the inner side of the connecting seat.

[0005] Wherein, two fixing blocks are fixedly connected to the top of the butterfly valve body, and the fixing clamp is fixedly connected to the fixing blocks.

[0006] The connecting clip has the same size as the fixing clip, and a plurality of movable clips are located between the fixing clip and the connecting clip.

[0007] Wherein, a damping shaft is provided on the inner side of the connecting seat, and the limiting block is rotationally connected to the damping shaft.

[0008] A limiting groove is provided on a side of the limiting block away from the connecting seat, and the limiting groove matches the total width of the fixing clip and the connecting clip.

[0009] The beneficial effect of the utility model is that by unfolding the connection component, the connection clamp is made to slide along the outer side of the connection ring and the pipeline flange to align with the fixed clamp, and a plurality of movable clamps will be equidistantly distributed on the outer side of the connection ring and the pipeline flange, thereby achieving the purpose of connecting the butterfly valve body and the pipeline, making the installation and disassembly of the butterfly valve body simpler and faster, and facilitating the maintenance of the butterfly valve body. At the same time, a plurality of sealing strips will be tightly attached to the connection between the connection ring and the flange, so that the sealing strip can seal the connection between the butterfly valve body and the pipeline, which is beneficial to improving the sealing between the butterfly valve body and the pipeline. Therefore, the connection component can be used to improve the sealing between the butterfly valve body and the pipeline while connecting the butterfly valve body and the pipeline.

[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 A magnified view of part A in FIG.

[0013] Figure 3 It is a side view structural schematic diagram of the utility model;

[0014] Figure 4 It is a schematic diagram of the contraction of the connection assembly in the utility model;

[0015] In the figure: 1. butterfly valve body; 11. connecting ring; 12. fixing block; 13. connecting seat; 131. damping shaft; 14. limiting block; 141. limiting groove; 2. connecting assembly; 21. fixing clip; 22. movable clip; 23. connecting clip; 24. sealing strip. DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 4The utility model provides the following technical solution: it includes a butterfly valve body 1, which is characterized in that: two connecting rings 11 are provided on the butterfly valve body 1, and a connecting assembly 2 for connecting the connecting ring 11 to a pipeline is provided on the outer side of the connecting ring 11, and the connecting assembly 2 includes a fixed clamp 21, a movable clamp 22, a connecting clamp 23 and a sealing strip 24, the fixed clamp 21 is fixedly connected to the butterfly valve body 1, and the fixed clamp 21, a plurality of movable clamps 22 and the connecting clamp 23 are connected by a plurality of sealing strips 24, and two connecting seats 13 are provided on the top of the butterfly valve body 1, and a limit block 14 for limiting the fixed clamp 21 and the connecting clamp 23 is rotatably connected to the inner side of the connecting seat 13.

[0017] In this embodiment: it includes a butterfly valve body 1, through which the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media can be controlled, and it mainly plays a role of cutting off and throttling on the pipeline. The opening and closing part of the butterfly valve body 1 is a disc-shaped butterfly plate, which rotates inside the butterfly valve body 1 to achieve the purpose of opening and closing or regulating. The butterfly valve body 1 is provided with two connecting rings 11. When the butterfly valve body 1 is connected to the pipeline, the two connecting rings 11 need to be aligned with the connecting flanges at the ends of the pipeline respectively. The outer side of the connecting ring 11 is provided with a connecting assembly 2 for connecting the connecting ring 11 to the pipeline. When the connecting assembly When the component 2 is in the contracted state, three quarters of the outer side of the connecting ring 11 are in an unobstructed state, so that the connecting ring 11 can be aligned with the flange of the pipeline. When the connecting ring 11 is aligned with the flange at the end of the pipeline, the butterfly valve body 1 and the pipeline can be limited by unfolding the connecting component 2. The connecting component 2 includes a fixed clamp 21, a movable clamp 22, a connecting clamp 23 and a sealing strip 24. The thickness of the movable clamp 22 is the same as the total thickness of the fixed clamp 21 and the connecting clamp 23. The fixed clamp 21 is fixedly connected to the butterfly valve body 1. The fixed clamp 21, several movable clamps 22 and the connecting clamp 23 are connected by several sealing strips 24. The sealing strip 24 is made of elastic material. By unfolding the connection assembly 2, the connection clamp 23 slides along the connection ring 11 and the outer side of the pipeline flange to align with the fixed clamp 21, and a plurality of movable clamps 22 are evenly distributed on the outer side of the connection ring 11 and the pipeline flange, thereby achieving the purpose of connecting the butterfly valve body 1 and the pipeline, making the installation and disassembly of the butterfly valve body 1 simpler and faster, and facilitating the maintenance of the butterfly valve body 1. At the same time, a plurality of sealing strips 24 are tightly attached to the connection between the connection ring 11 and the flange, so that the sealing strip 24 can seal the connection between the butterfly valve body 1 and the pipeline, thereby facilitating the improvement of the sealing performance between the butterfly valve body 1 and the pipeline. Component 2 can improve the sealing between the butterfly valve body 1 and the pipeline while connecting the butterfly valve body 1. Two connecting seats 13 are provided on the top of the butterfly valve body 1. The inner side of the connecting seat 13 is rotatably connected with a limit block 14 for limiting the fixing clamp 21 and the connecting clamp 23. When the fixing clamp 21 is aligned with the connecting clamp 23, the limit block 14 is rotated downward so that the fixing clamp 21 and the connecting clamp 23 can enter the inner side of the limit block 14, so that the limit block 14 can limit the fixing clamp 21 and the connecting clamp 23, so that the connecting component 2 is fixed in the expanded state, thereby achieving the purpose of connecting the butterfly valve body 1 and the pipeline.

[0018] Two fixing blocks 12 are fixedly connected to the top of the butterfly valve body 1 , and the fixing clamp 21 is fixedly connected to the fixing blocks 12 ; the position of the fixing clamp 21 is fixed by the connection of the fixing blocks 12 .

[0019] The connecting clip 23 has the same size as the fixed clip 21, and a plurality of movable clips 22 are located between the fixed clip 21 and the connecting clip 23; when the connecting component 2 is in a retracted state, the distance between the connecting clip 23 and the fixed clip 21 is the farthest, and when the connecting clip 23 slides along the connecting ring 11 to align with the fixed clip 21, the connecting component 2 is in an expanded state.

[0020] A damping shaft 131 is provided on the inner side of the connecting seat 13 , and the limit block 14 is rotatably connected to the damping shaft 131 ; through the connection between the limit block 14 and the damping shaft 131 , the limit block 14 can rotate on the inner side of the connecting seat 13 .

[0021] A limiting groove 141 is provided on one side of the limiting block 14 away from the connecting seat 13, and the limiting groove 141 matches the total width of the fixing clip 21 and the connecting clip 23; when the connecting clip 23 is aligned with the fixing clip 21, by rotating the limiting block 14 downward, the fixing clip 21 and the connecting clip 23 can enter the inner side of the limiting groove 141, so that the limiting block 14 can limit the fixing clip 21 and the connecting clip 23.

[0022] The working principle and use process of the utility model are as follows: when the connecting component 2 is in a retracted state, three quarters of the outer side of the connecting ring 11 are in an unobstructed state, so that the connecting ring 11 can be aligned with the flange of the pipeline, and then the connecting component 2 is unfolded, so that the connecting clamp 23 slides along the outer side of the connecting ring 11 and the pipeline flange to be aligned with the fixed clamp 21, and a plurality of movable clamps 22 are evenly distributed on the outer side of the connecting ring 11 and the pipeline flange, and then the limit block 14 is rotated downward to limit the connecting clamp 23, so as to achieve the purpose of connecting the butterfly valve body 1 and the pipeline, so that the installation and disassembly of the butterfly valve body 1 are simpler and faster, and the butterfly valve body 1 is easy to repair, and at the same time, a plurality of sealing strips 24 will be in close contact with the connection between the connecting ring 11 and the flange, so that the sealing strip 24 can seal the connection between the butterfly valve body 1 and the pipeline.

Claims

1. A butterfly valve that is easy to maintain, comprising a butterfly valve body (1), Features: The butterfly valve body (1) is provided with two connecting rings (11), and a connecting assembly (2) for connecting the connecting ring (11) to a pipeline is provided on the outer side of the connecting ring (11), and the connecting assembly (2) comprises a fixed clamp (21), a movable clamp (22), a connecting clamp (23) and a sealing strip (24). The fixed clamp (21) is fixedly connected to the butterfly valve body (1), and the fixed clamp (21), a plurality of movable clamps (22) and the connecting clamp (23) are connected via a plurality of sealing strips (24). Two connecting seats (13) are provided on the top of the butterfly valve body (1), and a limit block (14) for limiting the fixed clamp (21) and the connecting clamp (23) is rotatably connected to the inner side of the connecting seat (13).

2. A butterfly valve that is easy to maintain according to claim 1, Features: Two fixing blocks (12) are fixedly connected to the top of the butterfly valve body (1), and the fixing clamp (21) is fixedly connected to the fixing blocks (12).

3. A butterfly valve that is easy to maintain according to claim 2, Features: The connecting clip (23) has the same size as the fixing clip (21), and a plurality of the movable clips (22) are located between the fixing clip (21) and the connecting clip (23).

4. A butterfly valve that is easy to maintain according to claim 3, Features: A damping shaft (131) is provided on the inner side of the connecting seat (13), and the limiting block (14) is rotatably connected to the damping shaft (131).

5. A butterfly valve that is easy to maintain according to claim 4, Features: A limiting groove (141) is provided on a side of the limiting block (14) away from the connecting seat (13), and the limiting groove (141) matches the total width of the fixing clip (21) and the connecting clip (23).

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