Butterfly valve lining mounting structure

Abstract

The utility model discloses a butterfly valve lining mounting structure, and relates to the technical field of butterfly valve lining mounting structures. The butterfly valve lining installation structure comprises a valve shell, a butterfly plate assembly and a lining, the butterfly plate assembly is connected with the valve shell in an inserted mode, the lining is connected into the valve shell in an inserted mode, the valve shell comprises a valve body and connecting rings, the connecting rings are fixedly arranged at the two ends of the valve body, a fixing clamping groove is formed in the inner side of the valve body, an inserting pipe is fixedly arranged at the top end of the valve body, and the inserting pipe is fixedly connected with the valve body. The top of the insertion pipe is sleeved with a sealing cover, and an upper sealing ring is clamped between the insertion pipe and the sealing cover. The lining comprises a lining layer and a fixing clamping ring, the fixing clamping ring is fixedly connected to the outer side of the lining layer in a sleeving mode, an inserting hole is formed in the top of the lining layer, and the inserting hole corresponds to the inserting pipe. According to the butterfly valve lining installation structure, the fixing clamping groove is formed in the inner side of the valve shell of the butterfly valve, the fixing clamping ring is fixedly connected to the outer side of the lining layer in a sleeved mode, and the fixing clamping groove is matched with the fixing clamping ring, so that the lining is conveniently fixed to the inner side of the valve shell.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve lining installation structure, in particular to a butterfly valve lining installation structure. Background Technique

[0002] The butterfly valve, also called a flap valve, is a simple-structured regulating valve, which can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. It mainly plays the role of cutting off and throttling in pipelines.

[0003] In the prior art, the opening and closing member of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjusting. During the opening and closing process, the butterfly plate often rubs against the butterfly valve lining, which is likely to cause wear of the butterfly plate and the lining; the existing lining is generally fixedly arranged inside the butterfly valve and cannot be replaced after wear, resulting in the scrapping of the butterfly valve.

[0004] During the opening and closing process, the butterfly plate often rubs against the butterfly valve lining, causing wear of the butterfly plate and the lining. Severe wear of the butterfly plate and the lining will lead to poor sealing of the butterfly valve and leakage of the medium in the closed state; the lining cannot be replaced due to wear, resulting in the overall scrapping of the butterfly valve and increasing the use cost. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a butterfly valve lining installation structure, which solves the problem of inconvenient replacement after the lining is worn.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A butterfly valve lining installation structure, including a valve housing, a butterfly plate assembly, and a lining. The butterfly plate assembly is inserted into the valve housing, the lining is inserted inside the valve housing. The valve housing includes a valve body and a connecting ring. The connecting ring is fixedly arranged at both ends of the valve body. A fixed card slot is opened inside the valve body. A plug is fixedly arranged at the top of the valve body. A sealing cover is sleeved on the top of the plug. An upper sealing ring is clamped between the plug and the sealing cover.

[0007] The lining includes a lining layer and a fixed clamping ring. The fixed clamping ring is fixedly sleeved outside the lining layer. A jack is opened at the top of the lining layer, and the jack corresponds to the plug.

[0008] Preferably, a sealing card slot is opened on the outer side of the connecting ring. A connecting sealing ring is inserted into the sealing card slot. A connecting screw hole evenly distributed in a ring shape is opened on the connecting ring, and the connecting screw hole is used for fixedly connecting the butterfly valve to the pipeline.

[0009] Preferably, the butterfly plate assembly includes a butterfly plate and a connecting rod. The connecting rod is inserted inside the butterfly plate. A fixed insertion rod is inserted in the middle of the butterfly plate. The fixed insertion rod penetrates through the butterfly plate and is inserted at the bottom end of the connecting rod.

[0010] Preferably, a rotary handle is inserted into the top of the connecting rod, and the rotary handle is fixed to the top end of the connecting rod by bolts.

[0011] Preferably, the outer side of the inner lining layer is closely attached to the inner side of the valve body, and the fixing snap ring is clamped in the fixing clamping groove.

[0012] Preferably, the outer side of the butterfly plate is closely abutted against the inner side of the inner lining layer, the connecting rod is inserted into the inner side of the insertion tube, and the outer side of the connecting rod is closely attached to the inner side of the upper sealing ring.

[0013] The utility model discloses an installation structure of a butterfly valve inner lining, and the beneficial effects thereof are as follows: A fixing clamping groove is formed in the inner side of the valve housing of the butterfly valve, a fixing snap ring is fixedly sleeved on the outer side of the inner lining layer, and the fixing clamping groove and the fixing snap ring are matched with each other, so that it is convenient to fix the inner lining on the inner side of the valve housing; and the inner lining is made of rubber material, and the rubber material is soft and elastic, which is convenient for the installation and replacement of the inner lining; the soft and elastic inner lining is closely attached to the edge of the butterfly plate and has little wear on the butterfly plate, thereby prolonging the service life of the butterfly plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic structural diagram of the valve housing of the present invention;

[0017] Figure 3 is a schematic structural diagram of the butterfly plate of the present invention;

[0018] Figure 4 is a schematic cross-sectional structural diagram of the butterfly plate of the present invention;

[0019] Figure 5 is a schematic structural diagram of the inner lining of the present invention.

[0020] In the figure: 1. Valve housing; 11. Valve body; 111. Fixing clamping groove; 112. Insertion tube; 113. Sealing cover; 114. Upper sealing ring; 12. Connecting ring; 121. Sealing clamping groove; 122. Connecting sealing ring; 123. Connecting screw hole; 2. Butterfly plate assembly; 21. Butterfly plate; 22. Connecting rod; 221. Fixing insertion rod; 23. Rotary handle; 3. Inner lining; 31. Inner lining layer; 311. Insertion hole; 32. Fixing snap ring. Detailed implementation mode

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation modes.

[0022] The embodiment of the utility model discloses a butterfly valve lining installation structure.

[0023] According to the attached Figures 1-5 As shown, it includes a valve housing 1, a butterfly plate assembly 2 and a lining 3. The butterfly plate assembly 2 is inserted into the valve housing. The lining 3 is inserted inside the valve housing 1. The valve housing 1 includes a valve body 11 and a connecting ring 12. The connecting ring 12 is fixedly arranged at both ends of the valve body 11. A fixed card slot 111 is arranged inside the valve body 11. A plug tube 112 is fixedly arranged at the top of the valve body 11. A sealing cover 113 is sleeved on the top of the plug tube 112. An upper sealing ring 114 is clamped between the plug tube 112 and the sealing cover 113. The lining 3 includes a lining layer 31 and a fixed clamping ring 32. The fixed clamping ring 32 is fixedly sleeved on the outside of the lining layer 31. An insertion hole 311 is arranged at the top of the lining layer 31. The insertion hole 311 corresponds to the plug tube 112.

[0024] A fixed card slot 111 is arranged inside the butterfly valve housing 11. A fixed clamping ring 32 is fixedly sleeved on the outside of the lining layer 31. The fixed card slot 111 and the fixed clamping ring 31 cooperate with each other, which is convenient for fixing the lining 3 inside the valve housing 11. And the lining 3 is made of rubber material. The rubber material is soft and elastic, which is convenient for the installation and replacement of the lining 3. The soft and elastic lining 3 fits closely with the edge of the butterfly plate 21 and has less wear on the butterfly plate 21, extending the service life of the butterfly plate 21.

[0025] Further, a sealing card slot 121 is arranged on the outside of the connecting ring 12. A connecting sealing ring 122 is inserted into the sealing card slot 121. Connecting screw holes 123 are arranged on the connecting ring 12 in a uniformly distributed circular pattern. The connecting screw holes 123 are used for the fixed connection of the butterfly valve and the pipeline.

[0026] Further, the butterfly plate assembly 2 includes a butterfly plate 21 and a connecting rod 22. The connecting rod 22 is inserted inside the butterfly plate 21. A fixed insertion rod 221 is inserted in the middle of the butterfly plate 21. The fixed insertion rod 221 penetrates through the butterfly plate 21 and is inserted into the bottom end of the connecting rod 22.

[0027] Specifically disclosed, a rotating handle 23 is inserted at the top of the connecting rod 22. The rotating handle 23 is bolted to the top of the connecting rod 22.

[0028] Specifically disclosed, the outside of the lining layer 31 is closely attached to the inside of the valve body 11. The fixed clamping ring 32 is clamped in the fixed card slot 111.

[0029] It should be particularly emphasized that the outer side of the butterfly plate 21 is in close contact with the inner side of the inner lining layer 31, the connecting rod 22 is inserted into the inner side of the inserting pipe 112, and the outer side of the connecting rod 22 is in close fit with the inner side of the upper sealing ring 114.

[0030] It should be particularly emphasized that the inner lining 3 is made of rubber material.

[0031] Working principle: First, fold the inner lining 3 and place it inside the valve body 11. Under the action of elastic force, the inner lining 3 returns to its original shape. Adjust the position of the inner lining 3 so that the fixed snap ring 32 is stably snapped into the fixed slot 111, and align the jack 311 with the inserting pipe 112;

[0032] Then, place the butterfly plate 21 inside the inner lining 3, insert the connecting rod 22 from the inner side of the inserting pipe 112 into the inner side of the inner lining 3, and insert it into the butterfly plate 21. Use the fixed inserting rod 221 to fixedly connect the butterfly plate 21 and the connecting rod 22;

[0033] Then, slip the upper sealing ring 114 onto the outer side of the connecting rod 22, then slip the sealing cover 113 onto the outer side of the connecting rod 22, and snap it onto the top of the upper sealing ring 114. The sealing cover 113 is threadedly connected and fixed to the inserting pipe 112, and then fix the turning handle 23 to the top of the connecting rod 22 with bolts;

[0034] Finally, when installing and using this butterfly valve, insert the connecting sealing ring 122 into the sealing slot and then connect it to the pipeline.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Butterfly valve lining installation structure, comprising a valve housing (1), a butterfly plate assembly (2) and a lining (3), wherein the butterfly plate assembly (2) is inserted into the valve housing, and the lining (3) is inserted inside the valve housing (1), characterized in that, The valve housing (1) includes a valve body (11) and a connecting ring (12). The connecting ring (12) is fixedly arranged at both ends of the valve body (11). A fixed card slot (111) is formed inside the valve body (11). A plug tube (112) is fixedly arranged at the top of the valve body (11). A sealing cover (113) is sleeved on the top of the plug tube (112). An upper sealing ring (114) is clamped between the plug tube (112) and the sealing cover (113). The inner liner (3) includes an inner liner layer (31) and a fixed clamping ring (32). The fixed clamping ring (32) is fixedly sleeved on the outside of the inner liner layer (31). An insertion hole (311) is formed at the top of the inner liner layer (31). The insertion hole (311) corresponds to the plug tube (112).

2. The butterfly valve lining installation structure according to claim 1, characterized in that, A sealing card slot (121) is formed on the outside of the connecting ring (12). A connecting sealing ring (122) is inserted into the sealing card slot (121). A connecting screw hole (123) evenly distributed in a ring shape is formed on the connecting ring (12). The connecting screw hole (123) is used for fixedly connecting the butterfly valve to a pipeline.

3. The butterfly valve lining installation structure according to claim 1, characterized in that, The butterfly plate assembly (2) includes a butterfly plate (21) and a connecting rod (22). The connecting rod (22) is inserted into the inside of the butterfly plate (21). A fixed insertion rod (221) is inserted into the middle of the butterfly plate (21). The fixed insertion rod (221) penetrates through the butterfly plate (21) and is inserted into the bottom end of the connecting rod (22).

4. The butterfly valve inner lining installation structure according to claim 3, characterized in that, A turning handle (23) is inserted into the top of the connecting rod (22). The turning handle (23) is bolted to the top end of the connecting rod (22).

5. The butterfly valve lining installation structure according to claim 1, characterized in that The outside of the inner liner layer (31) is closely attached to the inside of the valve body (11). The fixed clamping ring (32) is clamped in the fixed card slot (111).

6. The butterfly valve inner lining installation structure according to claim 3, characterized in that, The outside of the butterfly plate (21) is closely abutted against the inside of the inner liner layer (31). The connecting rod (22) is inserted into the inside of the plug tube (112). And the outside of the connecting rod (22) is closely attached to the inside of the upper sealing ring (114).

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