Pipeline breaking resistance low-temperature-resistant safety protection snap valve

Abstract

The utility model relates to the technical field of breakaway valves, in particular to a pipeline breaking resistance low-temperature-resistant safety protection breakaway valve. Comprising a breakaway valve body, a filter screen is installed on one side of the breakaway valve body, an adjusting device is arranged on the arc surface of the breakaway valve body, the adjusting device comprises a fixing ring, the fixing ring is fixedly connected with the arc surface of the breakaway valve body, and two adjusting rings are rotatably connected to the inner wall of the fixing ring; the ends of the arc surfaces of the adjusting rings are fixedly connected with mounting plates, and the sides, close to each other, of the two mounting plates are each fixedly connected with two sealing gaskets. According to the pipeline breaking resistance low-temperature-resistant safety protection breakaway valve, when the breakaway valve needs to be connected with an oil inlet connector of an oil gun, the connecting task can be completed through the adjusting device, so that the connecting effect of the oil inlet connector of the oil gun and the breakaway valve can be improved through the adjusting device, and the service life of the breakaway valve is prolonged. And the use stability of the whole snap valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of breakaway valve technology, and in particular to a low-temperature resistant safety breakaway valve for pipeline interruption. Background Technology

[0002] A breakaway valve is a reusable breakaway valve designed to be installed on the oil inlet of the fuel dispenser. When subjected to a certain pulling force, it automatically disengages and closes the valve to stop the fuel dispenser from dispensing oil.

[0003] Utility model CN216045671U discloses a breakaway valve. Its key technical features include: a valve body comprising a main valve and a connector; a first flow channel for fluid flow on the valve body; a sealing assembly for sealing the first flow channel between the main valve and the connector; and a breakaway assembly for restricting separation between the two. The breakaway assembly includes a retaining ring. The main valve has a first retaining groove, and the connector has a second retaining groove. The second retaining groove includes a first guide slope. When the main valve and the connector are fixed together, the first and second retaining grooves cooperate to form a breakaway groove. The retaining ring is located within the breakaway groove and restricts the separation of the main valve and the connector. When the main valve and the connector are pulled, the retaining ring disengages from the second retaining groove along the first guide slope, causing them to separate. This utility model has the following advantages and effects: it can automatically separate the oil gun and oil pipe under excessive force, and ensures the oil pipe is sealed and leak-free.

[0004] Regarding the above-mentioned issues, the following technical defects exist: The low-temperature resistant safety breakaway valve for pipeline disconnection is a safety protection device specifically designed for use at the oil inlet interface of the fuel nozzle. It is mainly used to automatically cut off and protect against abnormal situations when the fuel nozzle malfunctions. The filter screen can filter the oil in the fuel nozzle. However, when the breakaway valve is connected to the oil inlet interface of the fuel nozzle, it is connected by rotating a single screw. The stability of the connection by rotating a single screw is poor, and the breakaway valve may fall off the fuel nozzle.

[0005] Therefore, it is necessary to provide a new type of pipeline disconnection, low-temperature resistant, safety-protective pull-off valve to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem that in the existing technology, when the breakaway valve is connected to the oil inlet of the fuel nozzle, the connection is made by rotating a single screw. This connection with a single screw has poor stability and the breakaway valve may fall off the fuel nozzle.

[0007] To solve the above technical problems, this utility model provides a low-temperature resistant safety breakaway valve for pipeline disconnection, comprising: a breakaway valve body, a filter screen installed on one side of the breakaway valve body, an adjustment device provided on the arc surface of the breakaway valve body, the adjustment device including a fixing ring, the fixing ring being fixedly connected to the arc surface of the breakaway valve body, two adjustment rings being rotatably connected to the inner wall of the fixing ring, a mounting plate being fixedly connected to one end of the arc surface of the adjustment ring, two sealing gaskets being fixedly connected to the sides of the two mounting plates that are close to each other, assembly rings being fixedly connected to both ends of the side of the mounting plate, the four assembly rings being grouped in pairs, the same fixing rod being threaded through the inner wall of each group of assembly rings, a connecting block being fixedly connected to one end of the arc surface of the fixing rod, and a sliding rod being slidably passed through the inner wall of the connecting block.

[0008] The aforementioned components achieve the following effects: The low-temperature resistant, pipeline-breakable safety pull-off valve body is a safety protection device specifically designed for use at the fuel nozzle inlet. It is mainly used for automatic shut-off and protection in case of abnormal conditions at the fuel nozzle. The filter screen can filter the oil in the fuel nozzle. However, when the pull-off valve body is connected to the fuel nozzle inlet, it is connected by a single screw rotation. The stability of the connection by a single screw rotation is poor, and the pull-off valve body may fall off the fuel nozzle. At this time, an adjustment device can be used to replace the single screw connection method, so that the pull-off valve body is connected to the fuel nozzle inlet. Thus, the stability of the connection between the fuel nozzle inlet and the pull-off valve body can be improved by adjusting the device.

[0009] Preferably, a guide block is fixedly connected to the other end of the arc surface of the fixing rod, and the guide block is funnel-shaped.

[0010] The effect achieved by the above components is that when the fixing rod comes into contact with the inner wall of the assembly ring, the guide block installed on the fixing rod can increase the speed at which the fixing rod connects with the inner wall of the assembly ring.

[0011] Preferably, an anti-slip sleeve is fixedly connected to the arc surface of the sliding rod, and the arc surface of the anti-slip sleeve is provided with anti-slip texture.

[0012] The effect achieved by the above components is that when the fixed rod is rotated using the sliding rod within the connecting block, the anti-slip sleeve installed on the sliding rod can increase the friction on the surface of the sliding rod, thereby improving the stability of the user rotating the fixed rod using the sliding rod.

[0013] Preferably, a contact pad is fixedly connected to the arc surface of the fixing rod.

[0014] The effect achieved by the above components is that when the fixing rod rotates inside the assembly ring and comes into contact with one of the assembly rings, the contact pad installed on the fixing rod can prevent the fixing rod from directly contacting the assembly ring and causing contact damage. Thus, the surface of the fixing rod can be protected by the action of the contact pad.

[0015] Preferably, the sliding rod is a titanium alloy rod.

[0016] The effect achieved by the above components is that the sliding rod made of titanium alloy has a relatively hard surface and is less prone to deformation after long-term use, resulting in a longer service life.

[0017] Preferably, an auxiliary device is provided at one end of the arc surface of the breakaway valve body. The auxiliary device includes three connecting blocks, all three connecting blocks are fixedly connected to the arc surface of the breakaway valve body, and a dustproof shell is slidably connected to the arc surface of the breakaway valve body. The dustproof shell has connecting grooves at the positions corresponding to the three connecting blocks. The three connecting blocks are slidably connected to the inner walls of the three connecting grooves respectively. A magnetic block is fixedly connected to one side of the connecting block, and a metal block is fixedly connected to the bottom wall of the connecting groove. The three magnetic blocks are attracted to the three metal blocks respectively.

[0018] The effect achieved by the above components is that, when the breakaway valve body is not used, the surface of the filter screen can be protected by the auxiliary device to prevent the filter screen from being exposed to the air for a long time and from coming into contact with dust and becoming clogged.

[0019] Preferably, a sponge is fixedly connected to the bottom wall of the dustproof shell.

[0020] The effect achieved by the above components is as follows: when the dust cover is used to protect the filter screen, the sponge installed on the bottom wall of the dust cover can absorb the oil stains adhering to the filter screen, preventing the oil stains from dripping into the inner wall of the dust cover and affecting the use effect of the dust cover.

[0021] Compared with related technologies, the low-temperature resistant safety breakaway valve for pipeline interruption provided by this utility model has the following beneficial effects:

[0022] This utility model provides a pipeline disconnection and low-temperature resistant safety breakaway valve. By setting an adjustment device, when it is necessary to connect the breakaway valve to the oil inlet of the fuel nozzle, the connection task can be completed through the adjustment device. Thus, the connection effect between the oil inlet of the fuel nozzle and the breakaway valve can be improved by the adjustment device, thereby improving the stability of the entire breakaway valve during use.

[0023] By installing an auxiliary device, the filter screen of the break-off valve can be protected when it is not in use. This protection prevents the filter screen from becoming clogged due to prolonged contact with dust in the air, and the auxiliary device can improve the filter screen's performance. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a low-temperature resistant, pipeline disconnection safety protection pull-off valve provided by this utility model;

[0025] Figure 2 for Figure 1 Partial structural diagram;

[0026] Figure 3 for Figure 1 The diagram shows the structure of the regulating device.

[0027] Figure 4 for Figure 3 The enlarged view at point A is shown below;

[0028] Figure 5 for Figure 1 The diagram shows the structure of the auxiliary device.

[0029] Figure 6 for Figure 1 The diagram shows the disassembled structure of the auxiliary device.

[0030] The following are the labeling elements in the diagram: 1. Breakaway valve body; 2. Adjusting device; 201. Fixing ring; 202. Adjusting ring; 203. Mounting plate; 204. Sealing gasket; 205. Assembly ring; 206. Fixing rod; 207. Connecting block; 208. Sliding rod; 209. Guide block; 210. Anti-slip sleeve; 211. Contact pad; 3. Auxiliary device; 31. Metal block; 32. Connecting block; 33. Dustproof shell; 34. Connecting groove; 35. Magnetic block; 36. Sponge; 4. Filter screen. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0033] Please see Figures 1 to 6 The present invention provides a pipeline disconnection and low temperature resistant safety protection pull-off valve, comprising: a pull-off valve body 1, a filter screen 4 installed on one side of the pull-off valve body 1, an adjustment device 2 provided on the arc surface of the pull-off valve body 1, and an auxiliary device 3 provided at one end of the arc surface of the pull-off valve body 1.

[0034] In the embodiments of this utility model, please refer to Figure 3 and Figure 4The regulating device 2 includes a fixed ring 201, which is fixedly connected to the arc surface of the breakaway valve body 1. Two regulating rings 202 are rotatably connected to the inner wall of the fixed ring 201. A mounting plate 203 is fixedly connected to one end of the arc surface of each regulating ring 202. Two sealing gaskets 204 are fixedly connected to the sides of the two mounting plates 203 that are close to each other. Assembly rings 205 are fixedly connected to both ends of the side of the mounting plates 203. The four assembly rings 205 are grouped in pairs. A fixed rod 206 is threaded through the inner wall of each group of assembly rings 205. A connecting block 207 is fixedly connected to one end of the arc surface of the fixed rod 206. A sliding rod 208 slides through the inner wall of the connecting block 207. The low-temperature resistant, breakaway safety valve body 1 is a specially designed safety protection device for use at the fuel nozzle inlet. It is primarily used for automatic shut-off and protection in case of abnormal conditions at the fuel nozzle. The filter screen 4 filters the fuel inside the nozzle. However, the connection between the breakaway valve body 1 and the fuel nozzle inlet is achieved through a single screw rotation. This single-screw connection has poor stability, and the breakaway valve body 1 may detach from the fuel nozzle. In this case, the adjusting device 2 can replace the single-screw connection, allowing the breakaway valve body 1 to connect directly to the fuel nozzle inlet. The adjusting device 2 improves the connection between the fuel nozzle inlet and the fuel nozzle inlet. To ensure the stability of the connection of the breakaway valve body 1, a guide block 209 is fixedly connected to the other end of the arc surface of the fixed rod 206. The guide block 209 is funnel-shaped. When the fixed rod 206 contacts the inner wall of the assembly ring 205, the guide block 209 installed on the fixed rod 206 can increase the speed at which the fixed rod 206 connects with the inner wall of the assembly ring 205. An anti-slip sleeve 210 is fixedly connected to the arc surface of the sliding rod 208. The arc surface of the anti-slip sleeve 210 is provided with anti-slip texture. When the fixed rod 206 is rotated by the sliding rod 208 in the connecting block 207, the anti-slip sleeve 210 installed on the sliding rod 208 can increase the friction on the surface of the sliding rod 208, thereby allowing the anti-slip sleeve 210 to pass through. 10. This improves the stability of the user rotating the fixed rod 206 using the sliding rod 208. The arc surface of the fixed rod 206 is fixedly connected with a contact pad 211. When the fixed rod 206 rotates within the assembly ring 205 and comes into contact with one of the assembly rings 205, the contact pad 211 installed on the fixed rod 206 can prevent the fixed rod 206 from directly contacting the assembly ring 205 and causing contact damage. Thus, the surface of the fixed rod 206 can be protected by the contact pad 211. The sliding rod 208 is a titanium alloy rod. The surface of the sliding rod 208 made of titanium alloy is relatively hard, and the rod body is less likely to deform after long-term use, resulting in a longer service life.

[0035] In the embodiments of this utility model, please refer to Figure 5 and Figure 6The auxiliary device 3 includes three connecting blocks 32, all of which are fixedly connected to the arc surface of the breakaway valve body 1. A dustproof shell 33 is slidably connected to the arc surface of the breakaway valve body 1. The dustproof shell 33 has connecting grooves 34 at the positions corresponding to the three connecting blocks 32. The three connecting blocks 32 are slidably connected to the inner walls of the three connecting grooves 34 respectively. A magnetic block 35 is fixedly connected to one side of the connecting block 32, and a metal block 31 is fixedly connected to the bottom wall of the connecting groove 34. The three magnetic blocks 35 are respectively connected to the three metal blocks. 31-phase adsorption: When the pull-off valve body 1 is not used, the surface of the filter screen 4 can be protected by the auxiliary device 3 to prevent the filter screen 4 from being exposed to the air for a long time and coming into contact with dust and becoming clogged. The bottom wall of the dust cover 33 is fixedly connected with a sponge 36. When the dust cover 33 is used to protect the filter screen 4, the sponge 36 installed on the bottom wall of the dust cover 33 can absorb the oil stains adhering to the filter screen 4 and prevent the oil stains from dripping into the inner wall of the dust cover 33 and affecting the use effect of the dust cover 33.

[0036] The working principle of the low-temperature resistant safety breakaway valve for pipeline disconnection provided by this utility model is as follows: The oil inlet of the fuel nozzle is brought into contact with one side of the breakaway valve body 1. At this time, the mounting plate 203 can be rotated on the adjusting ring 202. The movement of the mounting plate 203 will cause the adjusting ring 202 to rotate on the fixing ring 201, bringing the two mounting plates 203 into contact. At this time, the angles of the assembly rings 205 installed on the two mounting plates 203 will be aligned. Then, within the assembly rings 205, the fixing rod 206 can be rotated by sliding the sliding rod 208 up and down within the connecting block 207, thus fixing the two assembly rings 205 together. This fixes the installation angle of the two mounting plates 203. Finally, the breakaway valve body 1 can be connected to the oil inlet of the fuel nozzle via the adjusting device 2.

[0037] Align the dust cover 33 with the position of the breakaway valve body 1 near the filter screen 4, and align the connecting block 32 with the connecting groove 34. Then, press the dust cover 33 towards the connecting block 32. The movement of the dust cover 33 will drive the metal block 31 towards the connecting block 32. When the metal block 31 and the magnetic block 35 installed on the connecting block 32 are attracted, the dust cover 33 can be fixed on the filter screen 4 of the breakaway valve body 1.

[0038] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-temperature resistant, safety-protective breakaway valve for pipeline interruption, characterized in that, include: A breakaway valve body (1) is provided with a filter screen (4) installed on one side. An adjustment device (2) is provided on the arc surface of the breakaway valve body (1). The adjustment device (2) includes a fixing ring (201), which is fixedly connected to the arc surface of the breakaway valve body (1). Two adjustment rings (202) are rotatably connected to the inner wall of the fixing ring (201). An installation plate (203) is fixedly connected to one end of the arc surface of the adjustment ring (202). Two sealing gaskets (204) are fixedly connected to each other on the side of the mounting plate (203). Assembly rings (205) are fixedly connected to both ends of the side of the mounting plate (203). The four assembly rings (205) are in pairs. The same fixing rod (206) is threaded through the inner wall of each set of assembly rings (205). A connecting block (207) is fixedly connected to one end of the arc surface of the fixing rod (206). A sliding rod (208) slides through the inner wall of the connecting block (207).

2. The pipeline disconnection low-temperature resistant safety breakaway valve according to claim 1, characterized in that, A guide block (209) is fixedly connected to the other end of the arc surface of the fixed rod (206), and the guide block (209) is funnel-shaped.

3. The pipeline disconnection low-temperature resistant safety breakaway valve according to claim 1, characterized in that, The arc surface of the sliding rod (208) is fixedly connected to an anti-slip sleeve (210), and the arc surface of the anti-slip sleeve (210) is provided with anti-slip texture.

4. A low-temperature resistant, safety-protective pull-off valve for pipeline disconnection according to claim 1, characterized in that, The arc surface of the fixing rod (206) is fixedly connected to the contact pad (211).

5. A low-temperature resistant, safety-protective pull-off valve for pipeline disconnection according to claim 1, characterized in that, The sliding rod (208) is a titanium alloy rod.

6. A low-temperature resistant, safety-protective pull-off valve for pipeline disconnection according to claim 1, characterized in that, An auxiliary device (3) is provided at one end of the arc surface of the breakaway valve body (1). The auxiliary device (3) includes three connecting blocks (32). The three connecting blocks (32) are fixedly connected to the arc surface of the breakaway valve body (1). A dustproof shell (33) is slidably connected to the arc surface of the breakaway valve body (1). A connecting groove (34) is provided at the position of the three connecting blocks (32) of the dustproof shell (33). The three connecting blocks (32) are slidably connected to the inner wall of the three connecting grooves (34). A magnetic block (35) is fixedly connected to one side of the connecting block (32). A metal block (31) is fixedly connected to the bottom wall of the connecting groove (34). The three magnetic blocks (35) are attracted to the three metal blocks (31) respectively.

7. A pipeline disconnection type low-temperature resistant safety breakaway valve according to claim 6, characterized in that, The bottom wall of the dustproof shell (33) is fixedly connected with a sponge (36).

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