Quick connecting structure of butterfly valve

Abstract

The utility model discloses a quick connecting structure of a butterfly valve, and belongs to the technical field of butterfly valve connection. The quick connecting structure of the butterfly valve comprises a valve body, a connecting sleeve arranged on the valve body and used for being externally connected with a pipeline, and an inserting pipe arranged in the connecting sleeve and connected with the inner wall of the valve body in a sliding and inserting mode. The mounting ring is fixedly arranged on the connecting sleeve and fixedly connected with the inserting pipe, the sealing ring is fixedly arranged on the mounting ring and connected with the connecting end, close to the inserting pipe, of the valve body, and the mounting structure is arranged on the side, close to the valve body, of the connecting sleeve and used for being connected with the valve body. According to the quick connecting structure of the butterfly valve, the valve body and the external pipeline are connected through the connecting sleeve, sealing of the connecting position is achieved through the sealing ring, meanwhile, quick connection of the connecting sleeve and the valve body is achieved through the mounting structure, the time for connecting the butterfly valve and the pipeline is shortened, and the maintenance efficiency of maintenance personnel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of butterfly valve connections, and specifically to a quick connection structure for a butterfly valve. Background Art

[0002] A butterfly valve, also called a flap valve, is a simple structure regulating valve. A butterfly valve used for on-off control of media in low-pressure pipelines refers to a valve whose closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing. It is often used in industries such as pharmaceuticals, food, and chemicals, as well as in the transportation of particles and powders.

[0003] The Chinese utility model patent with the authorization announcement number CN221347902U discloses a quick connection structure for a butterfly valve. By installing a connection pipe assembly, the installation ring can be slid to the side of the flange at one end of the butterfly valve in a sliding manner, facilitating the positioning of the butterfly valve and the pipeline. The L-shaped plate is used to connect the butterfly valve and the pipeline together, reducing the connection time between the butterfly valve and the pipeline, improving the maintenance efficiency of maintenance personnel, and avoiding the loosening of bolt connections in the prior art. However, for this quick connection structure of the butterfly valve, multiple insertion rods are still required to achieve the connection when connecting the valve body and the pipeline, which is relatively cumbersome. Moreover, during the use of the butterfly valve, it is difficult to ensure the sealing performance of the connection structure, easily leading to leakage at the connection.

[0004] Therefore, the present application provides a quick connection structure for a butterfly valve to solve the above problems. Utility Model Content

[0005] The present application provides a quick connection structure for a butterfly valve, aiming to solve the problems in the background art that when connecting the valve body and the pipeline, multiple insertion rods are still required to achieve the connection, which is relatively cumbersome, and during the use of the butterfly valve, it is difficult to ensure the sealing performance of the connection structure, easily leading to leakage at the connection, etc.

[0006] To achieve the above object, the present application provides the following technical solution: A quick connection structure for a butterfly valve includes a valve body, a connection sleeve provided on the valve body for externally connecting a pipeline, an insertion pipe provided inside the connection sleeve and slidably inserted into the inner wall of the valve body, an installation ring fixedly provided on the connection sleeve and fixedly connected to the insertion pipe, and a sealing ring fixedly provided on the installation ring and in contact with the connection end of the valve body close to the insertion pipe.

[0007] In order to achieve a sealed connection at the joint between the valve body and the connecting sleeve; the quick-connection structure of the butterfly valve further includes an installation structure arranged on the side of the connecting sleeve close to the valve body for connecting with the valve body; during use, by first connecting the valve body with the connecting sleeve for connecting the pipeline, it is thus possible to avoid the inconvenience caused by directly connecting the valve body with the pipeline and needing to replace the valve body. By sliding and inserting the insertion pipe on the connecting sleeve into the inside of one end of the valve body, the sealing ring on the installation ring is tightly abutted against the valve body, thereby achieving the sealing at the joint between the valve body and the insertion pipe. At this time, the quick connection and fixation of the insertion pipe and the valve body are realized by using the installation structure.

[0008] Preferably, in order to achieve the quick installation of the valve body and the connecting sleeve; the installation structure includes a connecting pipe fixedly arranged on the outside of the connecting sleeve close to the valve body side and a connecting piece fixedly arranged on the valve body for inserting and connecting with the connecting pipe; after inserting the insertion pipe into the valve body, the connecting pipe and the connecting piece are slidably inserted to achieve the preliminary positioning of the valve body and the connecting sleeve.

[0009] Preferably, in order to achieve the reasonable insertion and fixation of the connecting piece and the connecting pipe; at least four arc-shaped grooves and clamping grooves distributed in an annular array are formed on the surface of the connecting pipe close to the connecting piece, the arc-shaped grooves are communicated with the clamping grooves, and a moving groove communicated with the arc-shaped grooves is formed on the clamping groove; the connecting piece can be inserted into the arc-shaped grooves and the clamping grooves and achieve the limiting effect by sliding in the moving groove.

[0010] Preferably, in order to limit the connecting piece and the connecting pipe to prevent them from separating; the connecting piece includes a connecting ring fixedly arranged on the valve body close to the connecting sleeve, at least four arc-shaped plates fixedly arranged on the connecting ring and distributed in an annular array and slidably connected with the arc-shaped grooves, and a clamping block fixedly arranged at the end of the arc-shaped plate far from the connecting ring and slidably inserted into the clamping groove, the clamping block slides in the moving groove; by sliding and inserting the connecting ring and the clamping plate along the arc-shaped grooves and the clamping grooves, after the insertion is completed, in order to fix the two, the connecting sleeve can be manually rotated to drive the connecting pipe to rotate, so that the arc-shaped plate slides in the arc-shaped groove and the clamping block rotates in the moving groove, and one end of the clamping block rotates to the side far from the clamping groove. At this time, since the cross-section of the clamping block is larger than the cross-section of the arc-shaped groove, the separation of the two is thus avoided and the fixation is realized.

[0011] Preferably, in order to limit the arc-shaped plate and prevent it from rotating and causing the clamping block to move to the position of the clamping groove and become disengaged; the installation structure further includes at least four limiting grooves that are annularly arrayed and opened on the connecting pipe and communicate with the side of the arc-shaped groove away from the clamping groove, and rubber plugs that are slidably inserted into the limiting grooves and used to limit the arc-shaped plate to a certain extent. One end of the rubber plug away from the limiting groove is fixedly provided with a clamping plate; after rotation, the rubber plug can be slidably inserted into the limiting groove, so that the arc-shaped plate is located on the side of the rubber plug close to the clamping groove, realizing the limitation of the arc-shaped plate and the clamping block. The clamping plate facilitates the taking and limiting of the rubber plug.

[0012] The quick connection structure of this butterfly valve realizes the connection between the valve body and the external pipeline by setting a connecting sleeve, realizes the sealing of the connection by setting a sealing ring, and at the same time realizes the quick connection between the connecting sleeve and the valve body by setting an installation structure, thereby reducing the connection time between the butterfly valve and the pipeline and improving the maintenance efficiency of maintenance personnel. Brief Description of the Drawings

[0013] Figure 1 It is a three-dimensional structure schematic diagram of a quick connection structure of a butterfly valve;

[0014] Figure 2 It is a cross-sectional structure schematic diagram of a quick connection structure of a butterfly valve;

[0015] Figure 3 It is an installation structure schematic diagram of a quick connection structure of a butterfly valve;

[0016] Figure 4 It is a connecting pipe structure schematic diagram of a quick connection structure of a butterfly valve;

[0017] Figure 5 It is a partial structure schematic diagram of a quick connection structure of a butterfly valve.

[0018] In the figure:

[0019] 1. Valve body;

[0020] 2. Connecting sleeve;

[0021] 21. Insertion connecting pipe; 211. Installation ring;

[0022] 22. Sealing ring;

[0023] 23. Installation structure;

[0024] 231. Connecting pipe;

[0025] 2311. Arc-shaped groove; 2312. Clamping groove; 2313. Moving groove; 2314. Limiting groove;

[0026] 232. Connector

[0027] 2321. Connecting ring; 2322. Arc-shaped plate; 2323. Clamping block

[0028] 233. Rubber insertion block; 2331. Clamping plate Detailed implementation method

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] The present application provides a quick connection structure for a butterfly valve, as Figures 1-4 shown. The quick connection structure of the butterfly valve includes a valve body 1 and a connection sleeve 2 provided on the valve body 1 for externally connecting a pipeline.

[0031] Different from the prior art, the quick connection structure of the butterfly valve further includes an insertion pipe 21 arranged inside the connection sleeve 2 and slidably inserted into the inner wall of the valve body 1, a mounting ring 211 fixedly arranged on the connection sleeve 2 and fixedly connected to the insertion pipe 21, a sealing ring 22 fixedly arranged on the mounting ring 211 and in contact with the connection end of the valve body 1 close to the insertion pipe 21, and a mounting structure 23 arranged on one side of the connection sleeve 2 close to the valve body 1 for connecting with the valve body 1.

[0032] During use, by first connecting the valve body 1 with the connection sleeve 2 for connecting the pipeline, the inconvenience caused by directly connecting the valve body 1 with the pipeline and needing to replace the valve body 1 is avoided. By slidably inserting the insertion pipe 21 on the connection sleeve 2 into one end inside the valve body 1, the sealing ring 22 on the mounting ring 211 is tightly pressed against the valve body 1, thereby realizing the sealing at the connection between the valve body 1 and the insertion pipe 21. At this time, the mounting structure 23 is used to quickly connect and fix the insertion pipe 21 and the valve body 1.

[0033] Specifically, the mounting structure 23 includes a connection pipe 231 fixedly arranged on the outside of the connection sleeve 2 close to the valve body 1 and a connector 232 fixedly arranged on the valve body 1 for inserting into the connection pipe 231; after inserting the insertion pipe 21 into the valve body 1, the connection pipe 231 and the connector 232 are slidably inserted to achieve the preliminary limit of the valve body 1 and the connection sleeve 2.

[0034] Among them, in order to achieve reasonable insertion and fixation of the connecting member 232 and the connecting pipe 231; on one side of the connecting pipe 231 close to the connecting member 232, at least four arc-shaped grooves 2311 and clamping grooves 2312 distributed in an annular array are provided. The arc-shaped grooves 2311 communicate with the clamping grooves 2312. A moving groove 2313 communicating with the arc-shaped grooves 2311 is provided on the clamping groove 2312. The connecting member 232 includes a connecting ring 2321 fixedly arranged on the valve body 1 close to the connecting sleeve 2, at least four arc-shaped plates 2322 fixedly arranged on the connecting ring 2321 and distributed in an annular array and slidably connected with the arc-shaped grooves 2311, and a clamping block 2323 fixedly arranged at one end of the arc-shaped plate 2322 away from the connecting ring 2321 and slidably inserted into the clamping groove 2312. The clamping block 2323 slides in the moving groove 2313; by sliding and inserting the connecting ring 2321 and the clamping plate 2331 along the arc-shaped grooves 2311 and the clamping grooves 2312, after the insertion is completed, in order to fix the two, the connecting sleeve 2 can be manually rotated to drive the connecting pipe 231 to rotate, so that the arc-shaped plate 2322 slides in the arc-shaped groove 2311, and the clamping block 2323 rotates in the moving groove 2313, so that one end of the clamping block 2323 rotates to the side away from the clamping groove 2312. At this time, since the cross-section of the clamping block 2323 is larger than the cross-section of the arc-shaped groove 2311, the separation of the two is avoided, and the fixation is achieved.

[0035] Furthermore, the installation structure 23 further includes at least four limiting grooves 2314 distributed in an annular array and opened on the connecting pipe 231 and communicating with the side of the arc-shaped groove 2311 away from the clamping groove 2312, and rubber insertion blocks 233 slidably inserted into the limiting grooves 2314 for limiting the arc-shaped plates 2322 to a certain extent. A clamping plate 2331 is fixedly arranged at one end of the rubber insertion block 233 away from the limiting groove 2314; during connection, in order to limit the arc-shaped plate 2322 and avoid the problem that the clamping block 2323 moves to the position of the clamping groove 2312 and disengages due to its self-rotation, after the rotation is completed, the rubber insertion block 233 can be slidably inserted into the limiting groove 2314, so that the arc-shaped plate 2322 is located on one side of the rubber insertion block 233 away from the clamping groove 2312, realizing the limitation of the arc-shaped plate 2322 and the clamping block 2323. The clamping plate 2331 facilitates taking and limiting the rubber insertion block 233.

[0036] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application, according to the technical solution and its concept of the present application, makes equivalent replacements or changes, and should be covered by the protection scope of the present application.

Claims

1. A quick connection structure of a butterfly valve, characterized in that: It comprises a valve body (1), a connecting sleeve (2) arranged on the valve body (1) for connecting an external pipeline, a plug-in tube (21) arranged inside the connecting sleeve (2) and slidably plugged with the inner wall of the valve body (1), a mounting ring (211) fixedly arranged on the connecting sleeve (2) and fixedly connected to the plug-in tube (21), and a sealing ring (22) fixedly arranged on the mounting ring (211) and grounded with the valve body (1) near the connecting end of the plug-in tube (21); The quick connection structure of the butterfly valve also includes a mounting structure (23) arranged on a side of the connecting sleeve (2) close to the valve body (1) and used for connecting with the valve body (1).

2. The quick connection structure of the butterfly valve according to claim 1, characterized in that: The mounting structure (23) comprises a connecting pipe (231) fixedly arranged outside the connecting sleeve (2) close to the valve body (1) and a connecting piece (232) fixedly arranged on the valve body (1) for plugging with the connecting pipe (231).

3. The quick connection structure of the butterfly valve according to claim 2, characterized in that: At least four arc-shaped grooves (2311) and clamping grooves (2312) distributed in a ring array are provided on one side of the connecting tube (231) close to the connecting piece (232); the arc-shaped groove (2311) is connected to the clamping groove (2312); and the clamping groove (2312) is provided with a moving groove (2313) connected to the arc-shaped groove (2311).

4. The quick connection structure of a butterfly valve according to claim 3, characterized in that: The connecting member (232) comprises a connecting ring (2321) fixedly arranged on the valve body (1) near the connecting sleeve (2), at least four arc plates (2322) fixedly arranged on the connecting ring (2321) and distributed in a ring array and slidably connected to the arc groove (2311), and a clamping block (2323) fixedly arranged on one end of the arc plate (2322) away from the connecting ring (2321) and slidably plugged into the clamping groove (2312), wherein the clamping block (2323) slides in the movable groove (2313).

5. The quick connection structure of a butterfly valve according to claim 4, characterized in that: The mounting structure (23) further comprises at least four limiting grooves (2314) arranged in a ring array and connected to a side of the arc groove (2311) away from the clamping groove (2312), and a rubber plug (233) slidably inserted in the limiting groove (2314) for limiting the arc plate (2322) to a certain extent, and a clamping plate (2331) is fixedly provided at one end of the rubber plug (233) away from the limiting groove (2314).

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