Butterfly valve convenient to overhaul

Abstract

The utility model provides a butterfly valve convenient to maintain, which comprises a valve body, a pipeline movably connected with one end of the valve body, flange assemblies arranged on the outer surfaces of the valve body and the two ends of the pipeline, a connecting assembly arranged at one end of the valve body and the pipeline, a first limiting assembly arranged inside the connecting assembly, and a second limiting assembly arranged inside the connecting assembly. The fixing assembly is arranged in the flange assembly, and the flange plates are fixedly connected to the valve body and the outer surfaces of the two ends of the pipeline. According to the butterfly valve convenient to overhaul, the connecting assembly is arranged at the connecting end of the valve body and the pipeline, the valve body and the pipeline are connected through the connecting assembly, and when disassembly is needed, only the fixing assembly needs to be taken out from the interior of the connecting assembly; the first limiting assembly and the second limiting assembly are pulled downwards, so that the second limiting assembly is separated from the flange assembly on the surface of the pipeline, the connecting assembly slides out of the interior of the pipeline, disassembly is completed, operation is easy, and damage to the valve body and the pipeline cannot be caused.

Description

Technical Field

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

[0002] Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. They mainly play a cutting and throttling role in pipelines. The butterfly valve opening and closing part is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or regulation.

[0003] The patent application with prior art publication number CN219263458U can complete the expansion work through the unsealing mechanism, which is convenient for removing and repairing the butterfly valve; by rotating the unsealing plate, the upper and lower connecting ends can be pried to solve the compression or adhesion problems, so that the upper and lower pipes can be directly taken out after a gap is generated between the upper and lower pipes and the valve body. However, the disassembly is relatively violent, which can easily cause deformation of the valve port, thereby affecting the secondary installation and sealing between the valve body and the pipeline.

[0004] Therefore, it is necessary to provide a butterfly valve that is easy to maintain to solve the above technical problems. Utility Model Content

[0005] The utility model provides a butterfly valve which is easy to repair and solves the problem that the valve body is deformed and affected by violent disassembly of the valve body.

[0006] In order to solve the above technical problems, the utility model provides a butterfly valve that is easy to repair, comprising: a valve body, one end of which is movably connected to a pipeline;

[0007] A flange assembly, the flange assembly being arranged on the outer surfaces of the valve body and both ends of the pipeline;

[0008] A connecting assembly, the connecting assembly being arranged at one end of the valve body and the pipeline;

[0009] A first limiting component, wherein the first limiting component is arranged inside the connecting component;

[0010] a second limiting component, the second limiting component being arranged inside the connecting component;

[0011] A fixing component is arranged inside the flange component.

[0012] Preferably, the flange assembly comprises a flange plate, the flange plate is fixedly connected to the outer surfaces of the valve body and the two ends of the pipeline, and a plurality of connecting holes are formed inside the flange plate.

[0013] Preferably, the connecting assembly includes an inner connecting sleeve, which is movably installed inside the valve body and one end of the pipeline, and a plurality of connecting bodies are fixedly connected to the outer surface of the inner connecting sleeve, and the other end of the connecting body is movably embedded in the interior of the connecting hole.

[0014] Preferably, the first limiting assembly includes a first limiting block, which is movably embedded in the interior of one end of the connecting body embedded in the interior of the valve body, a limiting hole is opened in the interior of one end of the valve body, and one end of the first limiting block is movably embedded in the interior of the limiting hole.

[0015] Preferably, the second limiting assembly includes a second limiting block, which is movably mounted inside the connecting body near the other end, and the bottom of the second limiting block is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the surface of the first limiting block.

[0016] Preferably, the fixing assembly comprises a fixing rod, the fixing rod is movably mounted inside the other end of the connector, both ends of the fixing rod are threadedly connected with fixing nuts, and the fixing nuts are movably embedded inside the connecting hole.

[0017] Preferably, a fixing hole is provided on the surface of the fixing rod near the center, and the top of the second limiting block is movably embedded in the fixing hole.

[0018] Compared with the related art, the butterfly valve provided by the utility model which is easy to repair has the following beneficial effects:

[0019] The utility model provides a butterfly valve which is easy to maintain. A connecting component is arranged at the connecting end of the valve body and the pipeline. The valve body and the pipeline are connected by the connecting component. When disassembly is required, it is only necessary to take out the fixing component from the inside of the connecting component, pull the first limiting component and the second limiting component downward to separate the second limiting component from the flange component on the pipeline surface, and the connecting component slides out from the inside of the pipeline to complete the disassembly of the valve body and the pipeline. The operation is simple and will not cause damage to the valve body and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a preferred embodiment of a butterfly valve that is easy to repair provided by the utility model;

[0021] Figure 2 for Figure 1 The front cross-sectional structural schematic diagram shown;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown.

[0023] Numbers in the figure: 1. Valve body,

[0024] 2. Pipeline,

[0025] 3. Flange assembly, 31. Flange plate, 32. Connection hole,

[0026] 4. Connecting assembly, 41. Internal connecting sleeve, 42. Connecting body,

[0027] 5. first limiting assembly, 51. first limiting block, 52. limiting hole,

[0028] 6. Second limit assembly, 61. Second limit block, 62. Connecting rod,

[0029] 7. fixing assembly, 71. fixing rod, 72. fixing nut, 73. fixing hole. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a butterfly valve that is easy to repair provided by the utility model; Figure 2 for Figure 1 The front cross-sectional structural schematic diagram shown; Figure 3 for Figure 2 The enlarged schematic diagram of part A is shown. A butterfly valve that is easy to maintain comprises: a valve body 1, one end of the valve body 1 is movably connected to a pipeline 2;

[0032] A flange assembly 3, wherein the flange assembly 3 is arranged on the outer surfaces of both ends of the valve body 1 and the pipeline 2;

[0033] A connecting component 4, wherein the connecting component 4 is arranged at one end of the valve body 1 and the pipeline 2;

[0034] A first limiting component 5, wherein the first limiting component 5 is arranged inside the connecting component 4;

[0035] A second limiting component 6, wherein the second limiting component 6 is arranged inside the connecting component 4;

[0036] The fixing component 7 is arranged inside the flange component 3 .

[0037] The function of the flange component 3 is to connect, the function of the connecting component 4 is to be a connector between the valve body 1 and the pipeline 2 to prevent the valve body 1 and the pipeline 2 from being damaged due to disassembly, and it also has a sealing function. The functions of the first limit component 5 and the second limit component 6 are both to fix and limit, and the function of the fixing component 7 is to fix.

[0038] The flange assembly 3 includes a flange plate 31 , which is fixedly connected to the outer surfaces of the valve body 1 and the two ends of the pipeline 2 , and a plurality of connecting holes 32 are formed inside the flange plate 31 .

[0039] Flanges 31 are fixedly mounted on the outer surfaces of both ends of the valve body 1 and the pipeline 2, and the surface of each flange 31 is provided with connecting holes 32 in a circumferential array. The number of connecting holes 32 can be determined according to actual conditions, and the connecting holes 32 on the surfaces of the two flanges 31 at the connecting ends of the valve body 1 and the pipeline 2 are opposite to each other.

[0040] The connecting assembly 4 includes an inner connecting sleeve 41, which is movably installed inside the valve body 1 and one end of the pipeline 2. The outer surface of the inner connecting sleeve 41 is fixedly connected to a plurality of connecting bodies 42, and the other end of the connecting body 42 is movably embedded in the connecting hole 32.

[0041] The inner connecting sleeve 41 is a circular ring, which is just the right size to be embedded in the inside of the valve body 1 and the pipe 2, and a sealing gasket is fixedly installed on the surface to have a sealing effect. The connecting bodies 42 are arranged in a circular array on the outer surface of the inner connecting sleeve 41, and the number is the same as the number of connecting holes 32 inside each flange 31. The top is T-shaped, and the two ends of the top of each connecting body 42 are respectively embedded in the inside of the two connecting holes 32 at one end of the valve body 1 and the pipe 2.

[0042] The first limiting assembly 5 includes a first limiting block 51, which is movably embedded in the interior of one end of the connecting body 42 embedded in the interior of the valve body 1. A limiting hole 52 is opened in the interior of one end of the valve body 1, and one end of the first limiting block 51 is movably embedded in the interior of the limiting hole 52.

[0043] The number of the first limiting components 5 is the same as the number of the connecting bodies 42. A hole is provided in the inner wall of the valve body 1. One end of the connecting body 42 is movably embedded in the hole, and a hole is provided in the end. The first limiting block 51 is movably embedded in the hole. The first limiting block 51 is composed of a block with a spring connected to the bottom. The limiting hole 52 is provided on the surface of the hole provided on the inner wall of the valve body 1 close to the outside. When the top of the connecting body 42 is embedded in the connecting hole 32 on the surface of the pipeline 2, the elastic force of the spring in the first limiting block 51 pushes the connecting block embedded in the limiting hole 52, thereby fixing the connecting body 42, which has the function of limiting and fixing.

[0044] The second limiting assembly 6 includes a second limiting block 61, which is movably installed inside the connecting body 42 near the other end. The bottom of the second limiting block 61 is fixedly connected to a connecting rod 62, and the other end of the connecting rod 62 is fixedly connected to the surface of the first limiting block 51.

[0045] A hole is opened inside near the top of each connecting body 42, and each second limit block 61 is movably embedded in the inside of the hole. The connecting rod 62 is an L-shaped rod, one end of which is fixedly connected to the bottom of the second limit block 61, and a spring is movably sleeved on the outer surface of the hole opened at the top of the connecting body 42, and the other end is fixedly connected to the surface of the connecting block in the first limit block 51. A piece is fixedly connected to the surface of the connecting rod 62, and the block is movably installed on the outer surface of the connecting body 42, which is convenient for pulling the connecting rod 62 downward. Pulling the connecting rod 62 downward can drive the second limit block 61 and the first limit block 51 to move downward at the same time, so that the first limit block 51 is disengaged from the inside of the limit hole 52, and the connecting body 42 loses its fixing force, and the valve body 1 and the pipeline 2 can be disassembled.

[0046] The fixing assembly 7 includes a fixing rod 71 movably mounted inside the other end of the connecting body 42 , and both ends of the fixing rod 71 are threadedly connected with fixing nuts 72 , and the fixing nuts 72 are movably embedded inside the connecting hole 32 .

[0047] A groove is formed on the top of the connecting body 42 , and each fixing rod 71 is embedded in the groove formed on the top of each connecting body 42 through the inside of the connecting hole 32 . Both ends of the fixing rod 71 are provided with threads, and both ends of each fixing rod 71 are threaded with fixing nuts 72 .

[0048] A fixing hole 73 is formed on the surface of the fixing rod 71 near the center, and the top of the second limiting block 61 is movably embedded in the fixing hole 73 .

[0049] When the two fixing nuts 72 are threaded on the two ends of the fixing rod 71, the two fixing nuts 72 fix the two ends of the top of the connecting body 42 to prevent the connecting body 42 from shaking inside the connecting hole 32, and the elastic force of the spring in the second limit block 61 pushes the second limit block 61 to be embedded in the fixing hole 73, thereby fixing the fixing rod 71, thereby increasing the indirect stability of the connecting component 4 and the fixing component 7.

[0050] The working principle of a butterfly valve that is easy to repair provided by the utility model is as follows:

[0051] When it is necessary to disassemble the valve body 1 and the pipeline 2, first thread the fixing nuts 72 at both ends of each fixing rod 71 out of the two ends of the fixing rod 71, and then pull the connecting rod 62 downward to drive the top of the second limit block 61 to disengage from the interior of the fixing hole 73, and the fixing rod 71 loses its fixing force. Then, the fixing rod 71 is pulled out from the interior of the connecting body 42, and the connecting rod 62 is continued to be pulled down to drive the top of the first limit block 51 to disengage from the interior of the limit hole 52, and the connecting body 42 loses its fixing force. Then, the connecting body 42 is pulled toward the inside of the valve body 1, and the top of the connecting body 42 is disengaged from the interior of the connecting hole 32 on the surface of the pipeline 2, and the inner connecting sleeve 41 is disengaged from the interior of the pipeline 2, thus completing the disassembly of the valve body 1 and the pipeline 2.

[0052] Compared with the related art, the butterfly valve provided by the utility model which is easy to repair has the following beneficial effects:

[0053] The utility model provides a butterfly valve which is easy to maintain. A connecting component 4 is arranged at the connecting end of a valve body 1 and a pipeline 2. The valve body 1 and the pipeline 2 are connected by the connecting component 4. When disassembly is required, it is only necessary to take out the fixing component 7 from the interior of the connecting component 4, pull the first limiting component 5 and the second limiting component 6 downward to separate the second limiting component 6 from the flange component 3 on the surface of the pipeline 2, and the connecting component 4 slides out from the interior of the pipeline 2 to complete the disassembly of the valve body 1 and the pipeline 2. The operation is simple and will not cause damage to the valve body 1 and the pipeline 2.

[0054] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A butterfly valve that is easy to maintain, characterized in that: include: A valve body, one end of which is movably connected to a pipeline; A flange assembly, wherein the flange assembly is arranged on the outer surfaces of the valve body and both ends of the pipeline; A connecting assembly, the connecting assembly being arranged at one end of the valve body and the pipeline; A first limiting component, wherein the first limiting component is arranged inside the connecting component; a second limiting component, the second limiting component being arranged inside the connecting component; A fixing component is arranged inside the flange component.

2. A butterfly valve that is easy to maintain according to claim 1, characterized in that: The flange assembly comprises a flange plate, which is fixedly connected to the outer surfaces of the valve body and the two ends of the pipeline, and a plurality of connecting holes are formed inside the flange plate.

3. A butterfly valve that is easy to maintain according to claim 2, characterized in that: The connection assembly includes an inner connection sleeve, which is movably installed inside the valve body and one end of the pipeline. The outer surface of the inner connection sleeve is fixedly connected to a plurality of connection bodies, and the other end of the connection body is movably embedded in the connection hole.

4. A butterfly valve that is easy to maintain according to claim 3, characterized in that: The first limiting assembly includes a first limiting block, which is movably embedded in the interior of one end of the connecting body embedded in the interior of the valve body. A limiting hole is provided in the interior of one end of the valve body, and one end of the first limiting block is movably embedded in the interior of the limiting hole.

5. A butterfly valve that is easy to maintain according to claim 4, characterized in that: The second limiting assembly includes a second limiting block, which is movably mounted inside the connecting body near the other end. The bottom of the second limiting block is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the surface of the first limiting block.

6. A butterfly valve that is easy to maintain according to claim 5, characterized in that: The fixing assembly comprises a fixing rod, which is movably mounted inside the other end of the connecting body. Both ends of the fixing rod are threadedly connected with fixing nuts, which are movably embedded inside the connecting hole.

7. A butterfly valve that is easy to maintain according to claim 6, characterized in that: A fixing hole is provided on the surface of the fixing rod near the center, and the top of the second limiting block is movably embedded in the fixing hole.

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