Valve connecting structure

Abstract

The utility model discloses a valve connecting structure which comprises a valve body, connecting pipes are arranged at the two ends of the valve body, external connecting pipes are arranged at the ends, away from the valve body, of the connecting pipes, sealing rings are arranged between the external connecting pipes and the sealing rings, and connecting rings are fixed to the ends, close to the external connecting pipes, of the connecting pipes. The connecting ring is arranged on the outer side of the outer connecting pipe, a sleeve is arranged on the side, away from the outer connecting pipe, of the connecting ring, the sleeve is rotationally connected to the outer side face of the connecting pipe, and a limiting ring is arranged at the end, away from the connecting ring, of the sleeve. The transmission ring moves to drive the push rod on one side to move, when the push rod moves, the push rod can push the limiting block to move downwards through the inclined face of the limiting block, in this way, after the limiting block moves downwards, one side of the external pipe can be fixed, the external pipe and the connecting pipe are tightly connected, and fixing of the external pipe is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a valve connecting structure. BACKGROUND

[0002] Valve is the key control part in fluid conveying system, main function has opening and closing, regulation, throttling effect, and the connecting mode of valve is various, can choose suitable connecting mode according to specific demand and condition, such as flange connection, screw connection, welding connection, valve is various, and is widely used in chemical industry, petroleum, industrial medium control etc.

[0003] Through the search, such as Chinese patent document discloses CN209414861U, a valve connecting structure, by pulling the baffle, under the elastic action of spring, make the guide rod drive two limit blocks stably close to each other or away from each other, due to the limiting effect of limit block and limit slot, facilitate the installation or disassembly of connecting pipe, simultaneously under the cooperation of sealing ring, can effectively guarantee the sealing property of valve, but there are still the following problems:

[0004] The valve connecting structure can install or disassemble the connecting pipe through the baffle during use, but needs to be operated one by one, cannot control all the baffles to move together, and cannot quickly complete fixing and disassembly. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a valve connecting structure to solve the problem of the valve connecting structure in the background art, which can install or disassemble the connecting pipe through the baffle, but needs to be operated one by one, cannot control all the baffles to move together, and cannot quickly complete fixing and disassembly.

[0006] To achieve the above object, the utility model provides the following technical scheme: a valve connecting structure, including valve body, the both ends of valve body are provided with connecting pipe, the one end away from valve body of connecting pipe is provided with external connecting pipe, the external connecting pipe and sealing ring are provided with sealing ring between;

[0007] The one end of connecting pipe close to external connecting pipe is fixed with connecting ring, the connecting ring is arranged on the outside of external connecting pipe, the side away from external connecting pipe of connecting ring is provided with sleeve, the sleeve is rotationally connected on the outside of connecting pipe, and the one end away from connecting ring of sleeve is provided with limit ring, and the limit ring is fixedly connected with the outside of connecting pipe.

[0008] Preferably, the inside of connecting ring is provided with four groups of limit blocks, the limit blocks are evenly distributed at equal angles, a limit sliding slot is formed at the connecting portion of connecting ring and limit block, and the limit sliding slot and limit block are slidingly connected.

[0009] Preferably, the top of the limiting block is slidably connected with a telescopic rod, and a telescopic sliding groove is formed at the connecting position of the limiting block and the telescopic rod, and a spring is arranged in the telescopic sliding groove and fixedly connected between the limiting block and the telescopic rod.

[0010] Preferably, the limiting block is provided with two groups of inclined surfaces near the top of the telescopic rod, and the two groups of inclined surfaces are arranged on the two sides of the telescopic rod.

[0011] Preferably, the inclined surface is slidably connected with a push rod on one side close to the sleeve, and a circular ring-shaped transmission ring is fixedly arranged at the end of the push rod away from the limiting block, and the transmission ring is rotatably connected with the sleeve.

[0012] Preferably, the push rod is of a "U" type structure, and four groups of push rods are arranged in position correspondence between the limiting block and the connecting ring, and the limiting block is slidably connected with the connecting ring.

[0013] Preferably, a slope surface structure matching the inclined surface is arranged at the connecting position of the push rod and the limiting block.

[0014] Preferably, a threaded structure is arranged at the connecting position of the sleeve and the connecting pipe, and the length dimension of the threaded structure of the connecting pipe is greater than the length dimension of the sleeve.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] By rotating the sleeve, the sleeve can drive the transmission ring to move close to the connecting ring, the movement of the transmission ring can drive the push rod on one side to move, and when the push rod moves, the limiting block can be pushed to move downward through the inclined surface of the limiting block, so that the limiting block can be fixed on one side of the external connecting pipe after moving downward, the external connecting pipe and the connecting pipe are tightly connected, and the fixing of the external connecting pipe is completed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram in the utility model;

[0019] Figure 3 It is a limiting block and push rod structural schematic diagram in the utility model;

[0020] Figure 4 It is a limiting block structural schematic diagram in the utility model;

[0021] Figure 5 It is a connecting pipe structural schematic diagram in the utility model.

[0022] In the figure: 1, valve body; 101, connecting pipe; 102, limit ring; 2, external pipe; 3, sealing ring; 4, connecting ring; 401, limit block; 402, limit sliding groove; 403, inclined surface; 404, telescopic rod; 405, telescopic sliding groove; 406, spring; 5, push rod; 501, transmission ring; 6, sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0024] Embodiment 1, please refer to Figures 1-5 The utility model provides a valve connecting structure, including valve body 1, connecting pipe 101, limit ring 102, external pipe 2, sealing ring 3, connecting ring 4, limit block 401, limit sliding groove 402, inclined surface 403, telescopic rod 404, telescopic sliding groove 405, spring 406, push rod 5, transmission ring 501, sleeve 6, the both ends of valve body 1 are provided with connecting pipe 101, the end away from valve body 1 of connecting pipe 101 is provided with external pipe 2, and sealing ring 3 is arranged between external pipe 2 and sealing ring 3;

[0025] Specifically, as shown in Figure 2 and Figure 3 , one end of connecting pipe 101 close to external pipe 2 is fixed with connecting ring 4, the inside of connecting ring 4 is provided with four sets of limit block 401, limit block 401 is evenly distributed at equal angles, limit sliding groove 402 is set up at the connecting place of connecting ring 4 and limit block 401, and limit sliding groove 402 is slidingly connected with limit block 401, and limit block 401 can be fixed to one side of external pipe 2 when protruding, so as to fix external pipe 2;

[0026] Specifically, as shown in Figure 2 and Figure 4 , telescopic rod 404 is slidingly connected to the top of limit block 401, telescopic sliding groove 405 is set up at the connecting place of limit block 401 and telescopic rod 404, spring 406 is arranged in the inside of telescopic sliding groove 405, and spring 406 is fixedly connected between limit block 401 and telescopic rod 404, and spring 406 can pull limit block 401 to move to the inside of limit sliding groove 402 by contraction, so as to facilitate the storage of limit block 401 and the release of the fixation of external pipe 2;

[0027] Specifically, as shown in Figure 2 and Figure 4As shown, the limiting block 401 is provided with two groups of inclined surfaces 403 near the top of the telescopic rod 404, and the two groups of inclined surfaces 403 are arranged on both sides of the telescopic rod 404. The inclined surfaces 403 can move the limiting block 401 when the push rod 5 moves, and control the protrusion of the limiting block 401.

[0028] Specifically, as shown in Figure 3 and Figure 4 , the inclined surface 403 is slidably connected with the push rod 5 on one side of the sleeve 6, and the end of the push rod 5 away from the limiting block 401 is fixed with a circular ring-shaped transmission ring 501, which is rotatably connected with the sleeve 6. In this way, when the sleeve 6 rotates, it can drive the transmission ring 501 to move horizontally, and then drive the push rod 5 to move.

[0029] Specifically, as shown in Figure 2 and Figure 3 , the push rod 5 is of "U" type structure, and the push rod 5 is provided with four groups, and the four groups of push rod 5 correspond in position between the limiting block 401 and the connecting ring 4. The limiting block 401 is slidably connected with the connecting ring 4, and the "U" type structure of the push rod 5 can avoid contact with the telescopic rod 404, and then push the limiting block 401 to protrude when the push rod 5 moves, facilitating the fixation of the connected external pipe 2.

[0030] Specifically, as shown in Figure 3 and Figure 4 , the connecting part of the push rod 5 and the limiting block 401 is provided with a slope surface structure matching the inclined surface 403, so that the push rod 5 can push the limiting block 401 to slide in the limiting sliding groove 402, facilitating the fixation of the position of the external pipe 2.

[0031] In embodiment 2, specifically, as shown in Figure 1 , Figure 2 and Figure 5 , the connecting ring 4 is arranged on the outside of the external pipe 2, and the sleeve 6 is arranged on the side of the connecting ring 4 away from the external pipe 2. The connecting pipe 101 is provided with a threaded structure at the connecting part of the sleeve 6, and the length dimension of the threaded structure of the connecting pipe 101 is greater than the length dimension of the sleeve 6, so that the movement range of the sleeve 6 is increased, facilitating the movement of the sleeve 6 to drive the push rod 5, and better controlling the movement of the limiting block 401.

[0032] The sleeve 6 is rotatably connected on the outer side of the connecting pipe 101, and the end of the sleeve 6 away from the connecting ring 4 is provided with a limiting ring 102, and the limiting ring 102 is fixedly connected with the outer side of the connecting pipe 101.

[0033] In use, the embodiment of the application: by setting the connecting ring 4 on the connecting pipe 101, and the inner side of the connecting ring 4 is provided with a limiting block 401, when connecting the outer connecting pipe 2, the sleeve pipe 6 can be rotated, the sleeve pipe 6 can be moved on the connecting pipe 101, when the sleeve pipe 6 moves, the transmission ring 501 can be driven to move close to the connecting ring 4, when the transmission ring 501 moves, the push rod 5 on one side can be moved, when the push rod 5 moves, the limiting block 401 can be pushed to move downward through the inclined surface 403 of the limiting block 401, so that the limiting block 401 can be fixed on one side of the outer connecting pipe 2 after moving downward, the outer connecting pipe 2 and the connecting pipe 101 are tightly connected, the fixing of the outer connecting pipe 2 is completed, when the sleeve pipe 6 is reversely rotated, the transmission ring 501 will move reversely, then the push rod 5 will also move, at this time, the limiting block 401 loses support, the spring 406 in the telescopic sliding groove 405 will contract, so as to pull the limiting block 401 to move to the limiting sliding groove 402 of the connecting ring 4, so that the limiting block 401 will not fix the outer connecting pipe 2, so that the valve connecting structure is used, it should be noted that the utility model is a valve connecting structure, the components are general standard parts or components known by those skilled in the art, the structure and principle thereof can be known by those skilled in the art through a technical manual or through a conventional experimental method, at the idle place of the device, all the electrical components, the power elements, the electrical components and the matched monitoring computer and power supply are connected through wires, the specific connection means should be referred to the working principle, the working order of the electrical components is completed, the detailed connection means is the known technology in the art.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A valve connection structure, comprising a valve body (1), characterized in that: The valve body (1) is provided with connecting pipes (101) at both ends. The end of the connecting pipe (101) away from the valve body (1) is provided with an external pipe (2). A sealing ring (3) is provided between the external pipe (2) and the sealing ring (3). A connecting ring (4) is fixed at one end of the connecting pipe (101) near the outer pipe (2). The connecting ring (4) is located on the outside of the outer pipe (2). A sleeve (6) is provided on the side of the connecting ring (4) away from the outer pipe (2). The sleeve (6) is rotatably connected to the outer surface of the connecting pipe (101). A limiting ring (102) is provided at the end of the sleeve (6) away from the connecting ring (4). The limiting ring (102) is fixedly connected to the outer surface of the connecting pipe (101).

2. The valve connection structure according to claim 1, characterized in that: The connecting ring (4) is provided with four sets of limiting blocks (401) inside. The limiting blocks (401) are evenly distributed at equal angles. A limiting groove (402) is opened at the connection between the connecting ring (4) and the limiting block (401), and the limiting groove (402) and the limiting block (401) are slidably connected.

3. The valve connection structure according to claim 2, characterized in that: The top of the limiting block (401) is slidably connected to a telescopic rod (404). A telescopic groove (405) is provided at the connection between the limiting block (401) and the telescopic rod (404). A spring (406) is provided inside the telescopic groove (405), and the spring (406) is fixedly connected to the limiting block (401) and the telescopic rod (404).

4. The valve connection structure according to claim 2, characterized in that: The limiting block (401) has two sets of inclined surfaces (403) near the top of the telescopic rod (404), and the two sets of inclined surfaces (403) are located on both sides of the telescopic rod (404).

5. A valve connection structure according to claim 4, characterized in that: A push rod (5) is slidably connected to the side of the inclined surface (403) near the sleeve (6). A transmission ring (501) with a circular structure is fixed to the end of the push rod (5) away from the limiting block (401). The transmission ring (501) is rotatably connected to the sleeve (6).

6. The valve connection structure according to claim 5, characterized in that: The push rod (5) has a "U" shaped structure and four sets of push rods (5) are provided. The four sets of push rods (5) correspond to the positions of the limiting block (401). The limiting block (401) is slidably connected to the connecting ring (4).

7. A valve connection structure according to claim 5, characterized in that: The connection between the push rod (5) and the limiting block (401) is provided with a slope structure that matches the inclined surface (403).

8. The valve connection structure according to claim 1, characterized in that: The connection between the sleeve (6) and the connecting pipe (101) is provided with a threaded structure, and the length of the threaded structure of the connecting pipe (101) is greater than the length of the sleeve (6).

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