A radial rotation type breakaway valve and its usage method

Abstract

This invention relates to a radial rotation type pull-off valve and its usage method, comprising a first valve body and a second valve body, which are engaged by a clamping clamp; a fixed valve core and a movable valve core are disposed inside the first and second valve bodies; a boss is provided on the movable valve core, and guide posts corresponding to the positions of the boss are fixed on the first and second valve bodies; a spring is provided on the inner side of the movable valve core; this invention is simple and lightweight, easy to manufacture, convenient to maintain, and reusable.

Description

Technical Field

[0001] This invention belongs to the field of breakaway valve technology, and in particular to a radial rotation type breakaway valve and its usage method. Background Technology

[0002] Breakaway valves are designed to prevent leaks caused by accidental pipeline rupture. They are applicable in areas such as ship-to-shore unloading, tank loading and unloading on highways and railways, and other stationary and mobile fluid storage devices. Common existing types include: One-way breakaway valves: Once the external force reaches the rated value, the female and male valve discs separate, each forming a sealing surface with the sealing ring, blocking the flow. Swing breakaway valves: Initially, the two valve plates are hooked together by their respective edge springs, and the valve is fully open. Once the external force on the swing breakaway valve reaches the rated value, the springs disengage, and the two valve plates rotate 90° by the deflection force of the springs, completely closing the valve and blocking the flow.

[0003] In the existing technology, breakaway valves are mostly designed with a valve core that moves along the connecting axis, which is relatively complex and lacks protection measures after breakage. Summary of the Invention

[0004] To address the technical problems of complex structure and lack of effective protection measures after breakage of the aforementioned break-off valve, this invention provides a radial rotation type break-off valve.

[0005] The technical solution of the present invention is as follows: it includes a first valve body and a second valve body, which are engaged by a clamping clamp; a fixed valve core and a movable valve core are provided inside the first valve body and the second valve body; a boss is provided on the movable valve core, and guide posts corresponding to the positions of the boss are fixed on the first valve body and the second valve body; a spring is provided on the inner side of the movable valve core.

[0006] Furthermore, the fixed valve core is welded inside the valve body, and valve holes are provided on both the fixed valve core and the movable valve core.

[0007] Furthermore, the valve orifice is either teardrop-shaped or circular.

[0008] Furthermore, the fixed valve core and the movable valve core are connected by a connecting shaft; one end of the spring is connected to the connecting shaft, and the other end is connected to the movable valve core.

[0009] Furthermore, a limiting platform and a limiting post that engage with each other are provided at the connection position of the first valve body and the second valve body.

[0010] Furthermore, the outer periphery of the boss is provided with an arc-shaped slope, and the center position of the boss corresponds to the position of the guide post of another valve body.

[0011] Furthermore, a gasket is provided at the connection point between the first valve body and the second valve body.

[0012] Furthermore, the clamp is equipped with a breakable bolt; the breakable bolt is a necked bolt with a notch in the middle, and its shape is an arc groove or annular groove.

[0013] Furthermore, the two valve bodies are provided with internal threads for communicating with the pipeline.

[0014] Furthermore, to achieve the above objectives, this application also discloses a method for using a radially rotating pull-off valve, comprising the following steps: Step 1, connecting the first valve body and the second valve body to a pipeline respectively; Step 2, connecting the first valve body and the second valve body together, with the guide post contacting the boss, the guide post driving the boss to rotate relative to each other, the boss driving the movable valve core to rotate, the valve holes of the fixed valve core and the movable valve core communicating, the spring pre-tightening, and the pipeline in a connected state; Step 3, engaging the first valve body and the second valve body with a clamping clamp; Step 4, when the tension on the clamp exceeds a threshold, the clamping clamp disengages, the guide post separates from the boss, the boss rotates under the action of the spring and returns to its original position, the valve holes of the fixed valve core and the movable valve core are staggered, and the pipeline is in a closed state.

[0015] The present invention has the following beneficial effects:

[0016] The valve core of this device can be reset after being broken. When it is broken, it automatically springs back and seals the valve hole to prevent leakage. After the emergency is over, the easy-to-break bolt on the clamp can be replaced and it can be used again. The device has a simple structure, is easy to manufacture, easy to maintain, and can be reused. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the movable valve core according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram showing that the valve holes of the fixed valve core and the movable valve core are not connected in an embodiment of the present invention.

[0020] Figure 4 This is a side view of the movable valve core according to an embodiment of the present invention.

[0021] Figure 5 This is an overall schematic diagram of the separation time of the two valve bodies in an embodiment of the present invention.

[0022] Figure 6 For the present invention Figure 5 Enlarged view of the positions of the limit post and the limit platform.

[0023] Figure 7 This is an enlarged view of the easily breakable bolt of the present invention.

[0024] The reference numerals in the figure are as follows:

[0025] 1. First valve body; 2. Second valve body; 3. Fixed valve core; 4. Movable valve core; 5. Guide post; 6. Boss; 7. Clamp; 8. Valve hole; 9. Spring; 10. Limit post; 11. Limit platform; 12. Easily breakable bolt; 13. Internal thread. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] Please see Figure 1-4 As shown, in one embodiment of the present invention, a first valve body 1 and a second valve body 2 are included, which are engaged by a clamping clamp 7; a fixed valve core 3 and a movable valve core 4 are provided inside the first valve body 1 and the second valve body 2; a boss 6 is provided on the movable valve core 4, and guide posts 5 corresponding to the positions of the boss 6 are fixed on the first valve body 1 and the second valve body 2; a spring 9 is provided on the inner side of the movable valve core 4.

[0028] When the first valve body 1 and the second valve body 2 are connected, the guide post 5 contacts the boss 6. The guide post 5 moves along the arc surface of the boss 6, thereby causing the boss 6 to rotate relative to each other. The boss 6 drives the movable valve core 4 to rotate, and the valve holes 8 of the fixed valve core 3 and the movable valve core 4 are connected. The spring 9 is pre-tightened, and the pipeline is in a connected state. When the guide post 5 separates from the boss 6, the boss 6 rotates under the action of the spring 9 and returns to its original position. At this time, the valve holes 8 of the fixed valve core 3 and the movable valve core 4 are offset from each other, and the pipeline is in a closed state. The guide post 5 is relatively fixed by the radial limit of the outer edge of the valve. The connection position of the first valve body 1 and the second valve body 2 is achieved by the clamping clamp 7, which completes the fastening and sealing. When subjected to external pulling force and reaching the failure value, the easily breakable bolt 12 on the clamp 7 breaks, the clamp 7 loosens, and the valve disconnects; under the action of the spring 9 loosening, the valve hole 8 of the movable valve core 4 resets, sealing the valve hole 8 of the fixed valve core 3, thus completing the leakage prevention protection after the pull-off.

[0029] Please see Figure 1-3 As shown, in another embodiment of the present invention, the fixed valve core 3 is welded inside the valve body, and valve holes 8 are provided on both the fixed valve core 3 and the movable valve core 4. The valve holes 8 on the fixed valve core 3 and the movable valve core 4 are offset relative to each other. When the first valve body 1 and the second valve body 2 are connected, the movable valve core 4 rotates under the action of the guide post 5 and the boss 6. At this time, the valve holes 8 on the fixed valve core 3 and the movable valve core 4 coincide, and the valve holes 8 are in a connected state.

[0030] In the above embodiments of the present invention, the valve hole 8 is teardrop-shaped or circular.

[0031] Please see Figure 2 , 3 As shown, in another embodiment of the present invention, the fixed valve core 3 and the movable valve core 4 are connected by a connecting shaft; one end of the spring 9 is connected to the connecting shaft, and the other end is connected to the movable valve core 4. The function of the connecting shaft is to allow the movable valve core 4 to fit against the fasteners of the fixed valve core 3. When the valve is pulled apart, the clamp 7 automatically resets under the action of the spring 9, sealing the fluid channel on the fixed partition and preventing material leakage.

[0032] Please see Figure 5 , 6 As shown, in another embodiment of the present invention, a limiting platform 11 and a limiting post 10 that engage with each other are provided at the connection position of the first valve body 1 and the second valve body 2.

[0033] The limiting posts 10 of the first valve body 1 and the second valve body 2 are respectively placed on the limiting platform 11 of the other valve body. When the two valve bodies are connected, they are engaged with each other, which strengthens the connection between the first valve body 1 and the second valve body 2.

[0034] Please see Figure 4 As shown, in another embodiment of the present invention, the outer periphery of the boss 6 is provided with an arc-shaped slope, and the center position of the boss 6 corresponds to the position of the guide post 5 of another valve body.

[0035] When the first valve body 1 and the second valve body 2 are connected, the guide post 5 on the first valve body 1 moves forward and gradually approaches the movable valve core 4 along the arc of the outer periphery of the boss 6. During this process, the boss 6 rotates relative to the movable valve core 4, and the boss 6 on the second valve body 2 drives the movable valve core 4 to rotate. The valve holes 8 of the fixed valve core 3 and the movable valve core 4 overlap, realizing the connection of the valve holes 8 inside the second valve body 2. Similarly, the guide post 5 on the second valve body 2 moves forward and drives the movable valve core 4 on the first valve body 1 to rotate. The valve holes 8 of the fixed valve core 3 and the movable valve core 4 overlap, realizing the connection of the valve holes 8 inside the first valve body 1. The number of guide posts 5 is one or two. The guide posts 5 of the first valve body 1 and the second valve body 2 are staggered. When there is one guide post 5, the positions of the guide posts 5 on the first valve body 1 and the second valve body 2 differ by 180°; when there are two guide posts 5, the positions of the guide posts 5 on the first valve body 1 and the second valve body 2 differ by 90°.

[0036] In any of the above embodiments of the present invention, a gasket is provided at the connection position between the first valve body 1 and the second valve body 2. The gasket is used to improve the sealing performance of the device.

[0037] In any of the above embodiments of the present invention, the clamp 7 is provided with a breakable bolt.

[0038] Please see Figure 7As shown, in another embodiment of the present invention, the easily broken bolt 12 is a necked bolt with a notch in the middle, and the shape is an arc groove or annular groove; the easily broken bolt 12 has a notch in the middle position, and the stability at the notch is weak, making it easier to break when subjected to external force.

[0039] In any of the above embodiments of the present invention, the two valve bodies are provided with internal threads 13 for communicating with pipelines. This facilitates the connection of the valve bodies with pipelines in the application environment.

[0040] In another embodiment of the present invention, a method for using a radially rotating pull-off valve is disclosed, comprising the following steps: Step 1, connecting the first valve body 1 and the second valve body 2 to a pipeline respectively; Step 2, connecting the first valve body 1 and the second valve body 2 together, with the guide post 5 in contact with the boss 6, the guide post 5 driving the boss 6 to rotate relative to each other, the boss 6 driving the movable valve core 4 to rotate, the valve holes 8 of the fixed valve core 3 and the movable valve core 4 communicating, the spring 9 pre-tightening, and the pipeline in a connected state; Step 3, engaging the first valve body 1 and the second valve body 2 with a clamping clamp 7; Step 4, when the tension on the clamp 7 exceeds a threshold, the clamping clamp 7 disengages, the guide post 5 separates from the boss 6, the boss 6 rotates under the action of the spring 9 and returns to its original position, the valve holes 8 of the fixed valve core 3 and the movable valve core 4 are staggered, and the pipeline is in a closed state.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A radial rotation type breakaway valve, characterized in that: The device includes a first valve body and a second valve body, which are engaged by a clamping clamp. A fixed valve core and a movable valve core are provided inside the first and second valve bodies. A boss is provided on the movable valve core, and guide posts corresponding to the positions of the boss are fixed on the first and second valve bodies. A spring is provided on the inner side of the movable valve core. The outer periphery of the boss is provided with an arc slope, and the center position of the boss corresponds to the position of the guide post of another valve body; The method of using the radial rotation type pull-off valve includes the following steps: Step 1, connect the first valve body and the second valve body to the pipeline respectively; Step 2, connect the first valve body and the second valve body together, the guide post contacts the boss, the guide post drives the boss to rotate relative to each other, the boss drives the movable valve core to rotate, the valve holes of the fixed valve core and the movable valve core are connected, the spring is pre-tightened, and the pipeline is in a connected state; Step 3, clamp the first valve body and the second valve body together with a clamp; Step 4, when the tension of the clamp exceeds the threshold, the clamp breaks, the guide post separates from the boss, the boss rotates under the action of the spring and returns to its original position, the valve holes of the fixed valve core and the movable valve core are staggered, and the pipeline is in a closed state; The fixed valve core and the movable valve core are connected by a connecting shaft; one end of the spring is connected to the connecting shaft, and the other end is connected to the movable valve core.

2. The radial rotation type breakaway valve according to claim 1, characterized in that: The fixed valve core is welded inside the valve body, and valve holes are provided on both the fixed valve core and the movable valve core.

3. The radial rotation type breakaway valve according to claim 2, characterized in that: The valve orifice is either teardrop-shaped or circular.

4. The radial rotation type breakaway valve according to claim 1, characterized in that: The first valve body and the second valve body are provided with a limiting platform and a limiting post that engage with each other at the connection position.

5. The radial rotation type breakaway valve according to claim 1, characterized in that: A gasket is provided at the connection point between the first valve body and the second valve body.

6. The radial rotation type breakaway valve according to claim 1, characterized in that: The clamp is equipped with a breakable bolt; the breakable bolt is a necked bolt with a notch in the middle, and its shape is an arc groove or annular groove.

7. The radial rotation type breakaway valve according to claim 1, characterized in that: Both valve bodies have internal threads for connecting to pipelines.

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