A connection structure of a pipe valve

Abstract

The utility model relates to pipe valve spare technical field especially relates to a pipe valve spare's connecting structure, including valve body, both ends of valve body are equipped with fixed pipe, the one end detachably installed with connecting pipe of fixed pipe far from valve body, the one end of connecting pipe is equipped with connecting joint, the side of connecting joint far from connecting pipe is equipped with protruding portion, the one end of fixed pipe far from valve body is equipped with fixed joint, the side of fixed joint far from fixed pipe is equipped with the recess of the protruding portion plug -in of setting up, be equipped with two opposite settings connecting plate on fixed joint, two connecting plates between sliding connection have two opposite settings clamping plate, the utility model will traditional multiple bolts aim at and tighten the cumbersome operation, simplify into only need to tighten a pair of convenient steps of nut after insertion, improved the efficiency of installation and dismounting, in addition, all connecting components are integrated on the joint, avoid the risk that traditional bolt and nut are as scattered small spare parts and are easy to lose.

Description

Technical Field

[0001] This utility model relates to the field of pipe valve technology, and in particular to a connection structure for pipe valves. Background Technology

[0002] Pipe valves are devices used in piping systems to control, adjust, and distribute the flow rate, direction, and parameters of fluids. These devices play a crucial role in piping systems, regulating the flow rate, pressure, and direction of fluids in the pipeline by controlling the opening and closing of valves, thus achieving control and normal operation of the piping system. The working principle of pipe valves is mainly to control the flow of the medium by the movement of the valve core or valve plate. When the orifice on the valve core or valve plate is aligned with the pipeline axis, the valve is in the open state, and the medium can pass smoothly through the valve passage. When the valve core or valve plate rotates or moves, and the orifice deviates from the pipeline axis, the valve is in the closed state, and the medium cannot pass through the valve passage.

[0003] Pipe valves are typically connected to moving pipes via fixed pipes on both sides. The traditional connection method is flange mating, where multiple bolts and nuts are used to fasten the flanges together. While this connection method provides a reliable seal, it reveals shortcomings in temporary, emergency, or frequently maintained applications: the installation and disassembly process is cumbersome, requiring repetitive actions such as picking up bolts, aligning holes, and tightening nuts, leading to low work efficiency. Furthermore, the small, scattered parts such as bolts and nuts pose a risk of loss, affecting the response speed of maintenance and repair. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a connection structure for pipe valves.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A connection structure for a pipe valve includes a valve body. Both ends of the valve body are provided with fixed pipes. A connecting pipe is detachably installed at the end of each fixed pipe away from the valve body. One end of the connecting pipe is provided with a connecting joint. A protrusion is provided on the side of the connecting joint away from the connecting pipe. The end of the fixed pipe away from the valve body is provided with a fixed joint. A groove is formed on the side of the fixed joint away from the fixed pipe for the protrusion to be inserted. The fixed joint has two opposing connecting plates. Two opposing locking plates with a semi-circular arc structure are slidably connected between the two connecting plates. The locking plates are located outside the fixed joint. One locking plate has two opposing fixed threaded posts. A stop plate is provided at the end of each fixed threaded post away from the locking plate. A fixing nut is screwed onto the fixed threaded post. An installation groove is formed on the inner side of the fixed threaded post. The other locking plate has a threaded half-post that matches the installation groove.

[0006] As a further embodiment of this utility model, the fixed joint is provided with two opposing limiting rods on the side away from the fixed pipe, and the connecting joint is provided with a limiting groove for the limiting rods to be inserted on the side away from the connecting pipe.

[0007] As a further embodiment of this utility model, the inner sidewall of the snap-fit ​​plate is provided with two opposite snap-fit ​​plates, and both the fixed joint and the connecting joint are provided with snap-fit ​​grooves for the snap-fit ​​plates to be inserted.

[0008] As a further embodiment of this utility model, the outer wall of the connecting plate is provided with a guide groove, and the locking plate is provided with a guide block that can slide and move within the guide groove.

[0009] As a further embodiment of this utility model, a first sealing gasket is provided on the end face of the protrusion, and a second sealing gasket is provided in the groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention simplifies the cumbersome process of aligning and tightening multiple bolts into a simple step of tightening only one pair of nuts after insertion, improving the efficiency of installation and disassembly. In addition, all connecting parts are integrated into the connector, avoiding the risk of losing traditional bolts and nuts as scattered small parts. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an installation diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing tube of this utility model; Figure 4 This is a schematic diagram of the connecting pipe of this utility model; In the diagram: 1. Valve body; 2. Fixed pipe; 201. Fixed connector; 202. Groove; 203. Connecting plate; 204. Snap-fit ​​plate; 205. Fixed threaded post; 206. Stop plate; 207. Fixed nut; 208. Mounting groove; 209. Threaded half post; 210. Limiting rod; 211. Snap-fit ​​plate; 212. Guide groove; 213. Guide block; 214. Second sealing gasket; 3. Connecting pipe; 301. Connecting connector; 302. Protrusion; 303. Limiting groove; 304. Snap-fit ​​groove; 305. First sealing gasket. Detailed Implementation

[0012] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0013] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0014] refer to Figures 1-4 A connection structure for a pipe valve includes a valve body 1. Both ends of the valve body 1 are provided with fixed pipes 2. A connecting pipe 3 is detachably installed at the end of the fixed pipe 2 away from the valve body 1. One end of the connecting pipe 3 is provided with a connecting connector 301. A protrusion 302 is provided on the side of the connecting connector 301 away from the connecting pipe 3. A fixed connector 201 is provided at the end of the fixed pipe 2 away from the valve body 1. A groove 202 for the protrusion to be inserted is provided on the side of the fixed connector 201 away from the fixed pipe 2. Two opposing connecting plates 203 are provided on the fixed connector 201, and two opposing connecting plates 203 are slidably connected between the two connecting plates 203. A locking plate 204 with a semi-circular arc structure is located outside the fixed joint 201. One locking plate 204 is provided with two oppositely arranged fixed threaded posts 205. A stop plate 206 is provided at the end of the fixed threaded post 205 away from the locking plate. The stop plate 206 ensures that the fixed nut 207 always maintains the connection relationship with the fixed threaded post 205 and prevents it from falling off and being lost. The fixed nut 207 is screwed onto the fixed threaded post 205. An installation groove 208 is opened on the inner side of the fixed threaded post 205. The other locking plate 204 is provided with a threaded half post 209 that matches the installation groove 208.

[0015] The fixed joint 201 has two opposing limiting rods 210 on the side away from the fixed pipe 2, and the connecting joint 301 has a limiting groove 303 on the side away from the connecting pipe 3 for the limiting rods 210 to be inserted. The cooperation between the limiting rods 210 and the limiting groove 303 prevents relative rotation between the connecting pipe 3 and the fixed pipe 2, ensuring the stability of the connection between the two.

[0016] The inner sidewall of the snap-fit ​​plate 204 is provided with two opposite snap-fit ​​plates 211. Both the fixed joint 201 and the connecting joint 301 are provided with snap-fit ​​grooves 304 for the snap-fit ​​plates 211 to be inserted into. The axial connection strength of the fixed joint 201 and the connecting joint 301 is ensured by the cooperation of the snap-fit ​​plates 211 and the snap-fit ​​grooves 304.

[0017] The connecting plate 203 has a guide groove 212 on its outer side wall, and the locking plate 204 has a guide block 213 that can slide within the guide groove 212. Through the cooperation of the guide block 213 and the guide groove 212, the two semi-circular locking plates 204 can move and align accurately and smoothly.

[0018] The protrusion 302 has a first sealing gasket 305 on its end face and a second sealing gasket 214 in its groove 202. The double sealing design of the protrusion 302 and the groove 202, as well as the first sealing gasket 305 and the second sealing gasket 214, ensures the sealing reliability of the connection.

[0019] The working principle of this utility model: During installation, firstly, align the protrusion 302 on the connecting pipe 3 with the groove 202 on the fixing pipe 2 and insert it. During insertion, ensure that the limiting rod 210 on the fixing pipe 2 is inserted into the limiting groove 303 of the connecting pipe 3 to achieve initial connection between the connecting pipe 3 and the fixing pipe 2. Then, close the two semi-circular locking plates 204 from both sides towards the middle, so that they wrap around the outside of the fixing joint 201 and the connecting joint 301. During this process, the locking plate 211 on the inner side of the locking plate 204 will naturally embed into the locking groove 304 of the fixing joint 201 and the connecting joint 301. At the same time, the threaded half-post 209 on one of the locking plates 204... It will be embedded in the mounting groove 208 inside the fixed threaded post 205 on another snap-fit ​​plate 204. At this time, the threaded half post 209 and the fixed threaded post 205 cooperate to form a complete threaded post. Then, rotate the fixing nut 207 so that it is screwed onto the threaded half post 209 and the fixed threaded post 205. During the tightening of the fixing nut 207, the fixing nut 207 will drive the snap-fit ​​plate 204 with the fixed threaded post 205 and the snap-fit ​​plate 204 with the threaded half post 209 to tighten towards the center, thereby generating a strong radial clamping force to ensure that the two snap-fit ​​plates 204 are firmly fixed, thereby realizing a stable connection between the connecting pipe 3 and the fixing pipe 2.

[0020] During disassembly, first rotate the fixing nut 207 in the opposite direction to disengage it from the threaded half column 209. Then, move the two locking plates 204 to the sides respectively to release the locking of the fixing joint 201 and the connecting joint 301. Finally, remove the protrusion 302 of the connecting tube 3 from the groove 202 of the fixing tube 2 to complete the disassembly of the connecting tube 3 and the fixing tube 2.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A connection structure for a pipe valve, comprising a valve body (1), wherein fixed pipes (2) are provided at both ends of the valve body (1), and a connecting pipe (3) is detachably installed at the end of the fixed pipe (2) away from the valve body (1), characterized in that: One end of the connecting pipe (3) is provided with a connecting joint (301), and the connecting joint (301) is provided with a protrusion (302) on the side away from the connecting pipe (3). The end of the fixing pipe (2) away from the valve body (1) is provided with a fixing joint (201), and the side of the fixing joint (201) away from the fixing pipe (2) is provided with a groove (202) for the protrusion to be inserted. The fixing joint (201) is provided with two oppositely arranged connecting plates (203), and the two connecting plates (203) are slidably connected by two oppositely arranged semi-circular arc structures. The locking plate (204) is located outside the fixed joint (201). One locking plate (204) is provided with two oppositely arranged fixed threaded posts (205). The end of the fixed threaded post (205) away from the locking plate is provided with a stop plate (206). A fixed nut (207) is screwed onto the fixed threaded post (205). An installation groove (208) is opened on the inner side of the fixed threaded post (205). The other locking plate (204) is provided with a threaded half post (209) that matches the installation groove (208).

2. The connection structure of a pipe valve according to claim 1, characterized in that: The fixed joint (201) has two opposing limiting rods (210) on the side away from the fixed pipe (2), and the connecting joint (301) has a limiting groove (303) on the side away from the connecting pipe (3) for the limiting rods (210) to be inserted.

3. The connection structure of a pipe valve according to claim 1, characterized in that: The inner sidewall of the snap-fit ​​plate (204) is provided with two opposite snap-fit ​​plates (211), and the fixed joint (201) and the connecting joint (301) are both provided with snap-fit ​​grooves (304) for the snap-fit ​​plates (211) to be inserted.

4. The connection structure of a pipe valve according to claim 1, characterized in that: The outer wall of the connecting plate (203) is provided with a guide groove (212), and the locking plate (204) is provided with a guide block (213) that can slide within the guide groove (212).

5. The connection structure of a pipe valve according to claim 1, characterized in that: The protrusion (302) has a first sealing gasket (305) on its end face, and the groove (202) has a second sealing gasket (214).

Images