Breaking valve

Abstract

The utility model relates to the technical field of breakaway valves, and provides a breakaway valve which comprises a valve body, a male connector and a female connector are arranged at the two ends of the valve body respectively, the female connector is arranged in the male connector, the male connector is communicated with the interior of the female connector, a first spring is arranged on the side, close to the male connector, of the valve body, and an annular block is fixedly connected to the interior of the valve body. One end of the first spring abuts against the male connector, the other end of the first spring abuts against the annular block, an annular clamping groove is formed in the outer surface of the female connector, a plurality of containing grooves are formed in the outer surface of the male connector, a fixing ball is arranged in each containing groove, and an extrusion cylinder enabling the fixing balls to be connected with the annular clamping groove in a clamped mode is arranged in the valve body. A sliding assembly enabling the fixing ball to be separated from the annular clamping groove or enabling the fixing ball to be connected with the annular clamping groove in a clamped mode is arranged on the side, close to the female connector, of the valve body. According to the technical scheme, the maintenance cost of workers is reduced, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breakaway valves, and in particular to a breakaway valve. Background Art

[0002] Breakaway valves are safety devices primarily used in pipeline systems in industries like oil, gas, and chemicals to prevent accidents. Their primary function is to monitor pressure and flow within the pipeline. If a rupture or leak occurs, the breakaway valve automatically closes quickly, preventing the escape of the media and protecting the environment and equipment.

[0003] However, conventional breakaway valves need to be completely replaced after being broken, which not only increases the maintenance workload of the staff, but also increases the maintenance cost and reduces practicality. Utility Model Content

[0004] The utility model provides a breakaway valve, which reduces maintenance time and cost for workers and improves practicability.

[0005] The technical solution of the utility model is as follows: a pull-off valve comprises a valve body, wherein two ends of the valve body are respectively provided with a male joint and a female joint, and the male joint and the female joint are both provided with a sealing mechanism that can seal their respective interiors when the male joint and the female joint are separated, the female joint is arranged inside the male joint, and the male joint is connected to the interior of the female joint, a first spring is provided on the side of the valve body close to the male joint, an annular block is fixedly connected to the interior of the valve body, one end of the first spring abuts against the male joint, and the other end of the first spring abuts against the annular block, an annular groove is provided on the outer surface of the female joint, a plurality of accommodating grooves are provided on the outer surface of the male joint, and a fixing ball is provided in each accommodating groove, an extrusion cylinder for engaging the fixing ball with the annular groove is provided in the valve body, and a sliding component for disengaging the fixing ball from the annular groove or engaging the fixing ball with the annular groove is provided on the side of the valve body close to the female joint.

[0006] Furthermore, the sliding assembly includes a second spring and a sliding cylinder. An accommodating space is provided on the side of the valve body close to the female joint. The extrusion cylinder is slidingly connected to the inner wall of the accommodating groove. An annular extrusion block is provided on the side of the extrusion cylinder close to the fixed ball, and both sides of the extrusion block are provided with a first inclined surface slidingly connected to the fixed ball. The fixed ball abuts against the annular extrusion block. The sliding cylinder is provided on the side of the valve body close to the female joint and is threadedly connected to the inside of the valve body. The bottom of the sliding cylinder abuts against the extrusion cylinder, one end of the second spring abuts against the bottom of the sliding cylinder, and the other end of the second spring abuts against the top of the annular block.

[0007] Furthermore, a rotating block is fixedly connected to a side of the sliding cylinder away from the male joint, and the cross section of the rotating block is a hexagonal structure.

[0008] Furthermore, a plurality of balls are provided on the top of the extrusion cylinder, and the balls are circumferentially arranged with the female joint as the center, and the bottom of the sliding cylinder is rollingly connected to the balls.

[0009] Furthermore, a mounting groove is provided on one side of the extrusion cylinder opposite to the annular block, and both ends of the second spring are fixedly connected to the bottom of the corresponding mounting groove.

[0010] Furthermore, both sides of the accommodating space are provided with limiting grooves, and both sides of the sliding cylinder are provided with limiting blocks, and the limiting blocks are slidably connected to the inner walls of the limiting grooves.

[0011] The working principle and beneficial effects of the utility model are as follows:

[0012] When axial tension is applied to both ends of the breakaway valve, the female connector drives the male connector in the direction of the compressed first spring. When the female connector forces the retaining ball on the male connector away from the inner wall of the extrusion barrel, the retaining ball has room to move, and the female connector detaches from the male connector. The respective sealing mechanisms of the male and female connectors seal the interior to prevent gas or liquid leakage.

[0013] When the female connector is detached from the male connector, the first spring returns to its original shape, causing the retaining ball on the male connector to re-extend. At this point, the detached female connector cannot be reinserted into the male connector. The operator must use the sliding assembly to retract the retaining ball into the receiving groove, then install the female connector into the male connector, and finally use the sliding assembly to engage the retaining ball with the annular retaining groove to secure it.

[0014] The sliding assembly allows the breakaway valve to be reused after disconnection, reducing the frequency of valve replacement and thus lowering maintenance and component replacement costs. After disconnecting the breakaway valve, workers simply reinstall the female connector into the male connector to resume use, reducing maintenance workload. Furthermore, the sliding assembly allows for manual separation of the male and female connectors, facilitating inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] In the figure: 1. valve body; 101. male connector; 102. female connector; 103. first spring; 104. annular block; 105. annular groove; 106. accommodating groove; 107. fixed ball; 2. second spring; 201. sliding cylinder; 202. accommodating space; 203. annular extrusion block; 204. first inclined surface; 205. extrusion cylinder; 3. rotating block; 301. ball; 302. mounting groove; 303. limiting groove; 304. limiting block; 5. valve core; 501. third spring; 502. support plate. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figure 1-3 A breakaway valve includes a valve body 1, with a male connector 101 and a female connector 102 provided at each end. Both male and female connectors 101 and 102 are provided with sealing mechanisms that can seal their respective interiors when the male and female connectors 101 and 102 are separated. This embodiment uses the sealing mechanism provided within the male connector 101 as an example. The sealing mechanism includes a valve core 5 for sealing the interior of the male connector 101, a third spring 501, and a support plate 502. The support plate 502 is provided within and fixedly connected to the interior of the male connector 101. The support plate 502 is provided with a plurality of through holes for fluid passage. One end of the third spring 501 is fixedly connected to the support plate 502, and the other end of the third spring 501 is fixedly connected to the valve core 5. When the male and female connectors 101 and 102 are separated, the third springs 501 in each sealing mechanism quickly recover their deformation, thereby sealing the interiors of the male and female connectors 101 and 102 through the valve core 5 to prevent fluid leakage.

[0022] The female connector 102 is arranged inside the male connector 101, and the male connector 101 is connected to the interior of the female connector 102. A first spring 103 is provided on the side of the valve body 1 close to the male connector 101, and an annular block 104 is fixedly connected to the inside of the valve body 1. One end of the first spring 103 abuts against the male connector 101, and the other end of the first spring 103 abuts against the annular block 104. An annular groove 105 is provided on the outer surface of the female connector 102, and a plurality of accommodating grooves 106 are provided on the outer surface of the male connector 101, and a fixing ball 107 is provided in each accommodating groove 106. An extrusion cylinder 205 is provided in the valve body 1 to engage the fixing ball 107 with the annular groove 105. A sliding component is provided on the side of the valve body 1 close to the female connector 102 to disengage the fixing ball 107 from the annular groove 105 or to engage the fixing ball 107 with the annular groove 105.

[0023] When axial tension is applied to both ends of the breakaway valve, the female connector 102 drives the male connector 101 to move in the direction of compressing the first spring 103. When the female connector 102 causes the retaining ball 107 on the male connector 101 to separate from the inner wall of the extrusion barrel 205, the retaining ball 107 has room to move. At this point, the female connector 102 separates from the male connector 101, and the respective sealing mechanisms of the male connector 101 and the female connector 102 seal the interior to prevent gas or liquid leakage.

[0024] When the female connector 102 is separated from the male connector 101, the first spring 103 returns to its original shape, causing the fixing ball 107 on the male connector 101 to re-extend. At this point, the separated female connector 102 cannot be reinserted into the male connector 101. The operator must use the sliding assembly to retract the fixing ball 107 into the receiving groove 106, then install the female connector 102 into the male connector 101, and finally use the sliding assembly to engage the fixing ball 107 with the annular groove 105 to secure it.

[0025] The sliding assembly allows the disconnected breakaway valve to be reused, reducing the frequency of valve replacement and thus the cost of repairs and replacement parts. After disconnecting the breakaway valve, personnel simply reinstall the female connector 102 into the male connector 101 to resume use, thus reducing maintenance workload. Furthermore, the sliding assembly allows for manual separation of the male connector 101 from the female connector 102, facilitating inspection and maintenance.

[0026] Specifically, the sliding assembly includes a second spring 2 and a sliding cylinder 201. An accommodating space 202 is provided on the side of the valve body 1 close to the female connector 102. The extrusion cylinder 205 is slidingly connected to the inner wall of the accommodating groove 106. An annular extrusion block 203 is provided on the side of the extrusion cylinder 205 close to the fixed ball 107 (the annular extrusion block 203 and the extrusion cylinder 205 can be integrally formed), and both sides of the extrusion block are provided with a first inclined surface 204 slidingly connected to the fixed ball 107. The fixed ball 107 abuts against the annular extrusion block 203. The sliding cylinder 201 is provided on the side of the valve body 1 close to the female connector 102 and is threadedly connected to the internal part of the valve body 1. The bottom of the sliding cylinder 201 abuts against the extrusion cylinder 205, one end of the second spring 2 abuts against the bottom of the sliding cylinder 201, and the other end of the second spring 2 abuts against the top of the annular block 104.

[0027] When the breakaway valve is disconnected, the operator needs to twist the sliding cylinder 201 and screw it into the valve body 1. At this time, the bottom of the sliding cylinder 201 will squeeze the extrusion cylinder 205, causing the extrusion cylinder 205 to move in the direction of compressing the second spring 2. Since the threaded connection is self-locking, the extrusion cylinder 205 will not be affected by the reset of the second spring 2. At this time, the annular extrusion block 203 will be separated from the fixed ball 107, and the fixed ball 107 can move in the cavity inside the extrusion cylinder 205. Then, the operator can reinsert the female connector 102 into the male connector 101, and the bottom of the female connector 102 will squeeze the fixed ball 107. Since the fixed ball 107 has space for movement, the female connector 102 can be smoothly inserted into the male connector 101 without getting stuck.

[0028] When female connector 102 is fully inserted into male connector 101, the operator can reverse the rotation of sliding cylinder 201, which will move accordingly, thereby restoring second spring 2. Second spring 2 drives extrusion cylinder 205, which in turn causes first inclined surface 204 on annular extrusion block 203 inside extrusion cylinder 205 to push retaining ball 107 back into annular retaining groove 105. This process allows the breakaway valve to be reused, reducing the frequency of valve replacement and lowering maintenance and component replacement costs.

[0029] In this embodiment, to facilitate the operator's rotation of the sliding cylinder 201, a rotating block 3 is fixedly connected to the side of the sliding cylinder 201 away from the male connector 101. The rotating block 3 has a hexagonal cross-section. The hexagonal cross-section of the rotating block 3 allows the operator to easily rotate the sliding cylinder 201 using a wrench, reducing the operator's labor intensity.

[0030] In addition, a plurality of balls 301 are provided on the top of the extrusion cylinder 205, and each ball 301 is circumferentially arranged with the female connector 102 as the center, and the bottom of the sliding cylinder 201 is rollingly connected to each ball 301. By providing the ball 301, the contact area between the bottom of the sliding cylinder 201 and the top of the extrusion cylinder 205 can be reduced, thereby reducing friction, making it easier for the operator to rotate the sliding cylinder 201, reducing the possibility of jamming when the sliding cylinder 201 rotates, making the operator more labor-saving, and improving the stability of the sliding assembly during use.

[0031] In this embodiment, a mounting groove 302 is provided on the side opposite to the extrusion cylinder 205 and the annular block 104, and the two ends of the second spring 2 are fixedly connected to the bottom of the corresponding mounting groove 302. By providing the mounting groove 302, a fixed mounting position is provided for the second spring 2, making it less likely to be offset or misaligned during long-term use, thereby increasing the service life of the second spring 2 and further enhancing the reliability and stability of the sliding assembly under long-term use.

[0032] In addition, limiting grooves 303 are provided on both sides of the accommodating space 202, and limiting blocks 304 are provided on both sides of the sliding cylinder 201. The limiting blocks 304 are slidably connected to the inner walls of the limiting grooves 303. By providing the limiting blocks 304 and the limiting grooves 303, the sliding cylinder 201 can be prevented from being offset or misaligned during movement, thereby ensuring that the second spring 2 is evenly stressed, further improving the service life of the second spring 2 and the reliability and stability of the sliding assembly under long-term use.

[0033] Working principle:

[0034] When the breakaway valve is disconnected, the operator needs to twist the sliding cylinder 201 and screw it into the valve body 1. At this time, the bottom of the sliding cylinder 201 will squeeze the extrusion cylinder 205, causing the extrusion cylinder 205 to move in the direction of compressing the second spring 2. Since the threaded connection is self-locking, the extrusion cylinder 205 will not be affected by the reset of the second spring 2. At this time, the annular extrusion block 203 will be separated from the fixed ball 107, and the fixed ball 107 can move in the cavity inside the extrusion cylinder 205. Then, the operator can reinsert the female connector 102 into the male connector 101, and the bottom of the female connector 102 will squeeze the fixed ball 107. Since the fixed ball 107 has space for movement, the female connector 102 can be smoothly inserted into the male connector 101 without getting stuck.

[0035] When female connector 102 is fully inserted into male connector 101, the operator can reverse the rotation of sliding cylinder 201, which will move accordingly, thereby restoring second spring 2. Second spring 2 drives extrusion cylinder 205, which in turn causes first inclined surface 204 on annular extrusion block 203 inside extrusion cylinder 205 to push retaining ball 107 back into annular retaining groove 105. This process allows the breakaway valve to be reused, reducing the frequency of valve replacement and lowering maintenance and component replacement costs.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A breakaway valve, comprising a valve body (1), wherein a male connector (101) and a female connector (102) are respectively provided at both ends of the valve body (1), wherein the male connector (101) and the female connector (102) are each provided with a sealing mechanism capable of sealing the interior of each connector when the male connector (101) and the female connector (102) are separated, wherein: The female connector (102) is arranged inside the male connector (101), and the male connector (101) is connected to the inside of the female connector (102). A first spring (103) is provided on the side of the valve body (1) close to the male connector (101). An annular block (104) is fixedly connected inside the valve body (1). One end of the first spring (103) abuts against the male connector (101), and the other end of the first spring (103) abuts against the annular block (104). The outer surface of the female connector (102) is provided with An annular groove (105), the outer surface of the male connector (101) is provided with a plurality of accommodating grooves (106), and each accommodating groove (106) is provided with a fixed ball (107), the valve body (1) is provided with an extrusion cylinder (205) for engaging the fixed ball (107) with the annular groove (105), and the side of the valve body (1) close to the female connector (102) is provided with a sliding component for disengaging the fixed ball (107) from the annular groove (105) or engaging the fixed ball (107) with the annular groove (105).

2. A breakaway valve according to claim 1, characterized in that: The sliding assembly includes a second spring (2) and a sliding cylinder (201). A accommodating space (202) is provided on a side of the valve body (1) close to the female connector (102). The extrusion cylinder (205) is slidably connected to the inner wall of the accommodating groove (106). An annular extrusion block (203) is provided on a side of the extrusion cylinder (205) close to the fixed ball (107), and both sides of the extrusion block are provided with a first inclined surface (204) slidably connected to the fixed ball (107). The fixed ball (107) abuts against the annular extrusion block (203). The sliding cylinder (201) is provided on a side of the valve body (1) close to the female connector (102) and is threadedly connected to the inside of the valve body (1). The bottom of the sliding cylinder (201) abuts against the extrusion cylinder (205). One end of the second spring (2) abuts against the bottom of the sliding cylinder (201), and the other end of the second spring (2) abuts against the top of the annular block (104).

3. A breakaway valve according to claim 2, characterized in that: A rotating block (3) is fixedly connected to the side of the sliding cylinder (201) away from the male connector (101), and the cross section of the rotating block (3) is a hexagonal structure.

4. A breakaway valve according to claim 3, characterized in that: A plurality of balls (301) are provided on the top of the extrusion cylinder (205), and each ball (301) is circumferentially arranged with the female connector (102) as the center, and the bottom of the sliding cylinder (201) is rollingly connected to each ball (301).

5. A breakaway valve according to claim 4, characterized in that: The extrusion cylinder (205) is provided with a mounting groove (302) on one side opposite to the annular block (104), and the two ends of the second spring (2) are fixedly connected to the bottom of the corresponding mounting groove (302).

6. A breakaway valve according to claim 5, characterized in that: Both sides of the accommodating space (202) are provided with limiting grooves (303), and both sides of the sliding cylinder (201) are provided with limiting blocks (304), and the limiting blocks (304) are slidably connected to the inner walls of the limiting grooves (303).

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