Impact-resistant explosion-resistant valve

Abstract

The utility model relates to the technical field of valves, and discloses an anti-impact explosion-proof valve which comprises a valve body, an S-shaped air passing groove is formed in the valve body, a sliding groove is formed in the valve body, the sliding groove is communicated with the air passing groove, a cylindrical valve element is connected into the sliding groove in a sliding mode, an air passing hole is formed in one side of the valve element, and the air passing hole is communicated with the air passing groove. The top of the valve body is provided with a limiting assembly for keeping the valve normally open, and one side of the valve element is provided with a flow guide component for changing the flow direction of gas. By arranging the S-shaped gas passing groove and the cylindrical valve element, the flow direction of the gas can be changed, meanwhile, the flow energy of the gas is increased, and the purpose of consuming the energy of the gas is achieved; the overall thickness of the valve element is enhanced, the overall strength of the valve element is enhanced, the impact resistance of the valve element is improved, the service life of the valve element is prolonged, the impact resistance of the valve can be improved through the flow guide component, and the explosion resistance effect of the valve can be achieved through the limiting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and more specifically to an impact-resistant explosion-proof valve. Background Art

[0002] The existing explosion-proof valve uses the structure of the valve body itself and the valve plate to seal when an explosion occurs in the pipeline. The strength of the valve body and the valve stem is used to withstand the shock wave during the explosion, thereby achieving the purpose of explosion-proofing.

[0003] After searching, the Chinese patent document with the announcement number CN111075971A discloses a flameproof explosion-proof valve with automatic pressure relief. When the pipeline explodes, the explosion plate changes through pressure, and automatically explodes when the explosion pressure is reached, and the pressure is relieved to reduce the impact pressure, thereby protecting the valve body and the internal structure of the valve body. However, there are still the following defects: most valves use valve plates for isolation and sealing, and the valve plates are plate-shaped. The impact of the explosion can easily cause the valve plates to bend and deform, resulting in a short service life of the valve. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an impact-resistant explosion-proof valve to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: an impact-resistant explosion-proof valve, comprising a valve body, an S-shaped air passage groove is provided inside the valve body, a slide groove is provided inside the valve body, and the slide groove is communicated with the air passage groove, a valve core which is generally cylindrical is slidably connected in the slide groove, an air passage hole is provided on one side of the valve core, a limit assembly for keeping the valve normally open is provided on the top of the valve body, and a guide component for changing the gas flow direction is provided on one side of the valve core.

[0006] Furthermore, the guide component is a plurality of guide grooves, the plurality of guide grooves are all opened on one side of the valve core, and the plurality of guide grooves are evenly distributed.

[0007] Furthermore, the limit assembly includes a connecting rod, which is rotatably connected to the top of the valve core, and a magnet is fixed to the outer side of the circumference of the connecting rod by bolts, and two support plates matching the outer sides of the connecting rod are fixed to the top outer wall of the valve body by bolts, and the magnet is in contact with one of the support plates, and an avoidance hole is provided on the top outer wall of the valve body, and the connecting rod is movably connected in the avoidance hole, an elastic component for pushing the valve core to move downward is provided on the top of the valve core, and a power component for pulling the connecting rod to rotate is provided on the top outer wall of the valve body.

[0008] Furthermore, the elastic component is a spring, the spring is welded to the top of the valve core, and the spring is fixed to the slide groove.

[0009] Furthermore, the power component is an electromagnet, which is fixed to the top outer wall of the valve body by bolts, and the electromagnet can be adsorbed by the magnetic block.

[0010] Furthermore, a avoiding groove is formed between the two support plates, and a pull ring for pulling the connecting rod to move upward is provided on the top of the connecting rod.

[0011] Furthermore, a protective cover is fixed to the top of the valve body by bolts, and the electromagnet, the support plate and the connecting rod are all inside the protective cover.

[0012] Furthermore, both upper and lower ends of the slide groove are provided with installation grooves, a sealing ring is bonded in the installation groove, and the sealing ring is in contact with the valve core.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with an S-shaped air passage groove and a cylindrical valve core, which can change the flow direction of the gas and increase the gas flow energy to achieve the purpose of consuming gas energy. The cylindrical valve core design strengthens the overall thickness of the valve core, thereby strengthening the overall strength of the valve core and improving the impact resistance of the valve core. At the same time, when the gas impacts the valve core, the flow direction of the gas can be changed, thereby disturbing the flow direction of the gas, reducing the gas impact on the valve core, and thus increasing the service life of the valve core.

[0015] 2. The utility model is provided with a guide component, and the gas enters from both ends of the guide groove. The gas that is initially guided by the cylindrical valve core will enter from the large-mouth end of the guide groove, and a small amount of gas will enter from the small-mouth end of the guide groove. The gas at both ends is gathered in the guide groove, and the gas entering from the large-mouth end will impact the gas entering from the small-mouth end, thereby offsetting the flow rate of the gas, thereby reducing the impact of the gas and improving the impact resistance of the valve.

[0016] 3. The utility model is provided with a limit assembly, and the electromagnet is started to generate magnetic force, which is attracted to the magnetic block, so that the magnetic block and the connecting rod rotate synchronously, and then the magnetic block rotates to the top of the avoidance groove. At this time, the compressed spring will squeeze the valve core to move downward in the slide groove, so that the air hole and the air groove are disconnected from the connected state, thereby realizing the closure of the valve, and then achieving the explosion-proof effect of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 3 It is a partial enlarged structural schematic diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the partial decomposition structure of the utility model.

[0021] The accompanying drawings are marked as follows: 1. valve body; 2. protective cover; 3. sealing ring; 4. slide groove; 5. air groove; 6. air hole; 7. mounting groove; 8. valve core; 9. guide groove; 10. connecting rod; 11. magnetic block; 12. avoidance groove; 13. support plate; 15. spring; 16. avoidance hole; 17. electromagnet; 18. pull ring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 4 The utility model provides an impact-resistant explosion-proof valve, including a valve body 1, an S-shaped air passage groove 5 is provided inside the valve body 1, a slide groove 4 is provided inside the valve body 1, and the slide groove 4 is connected to the air passage groove 5, a valve core 8 which is cylindrical as a whole is slidably connected in the slide groove 4, an air passage hole 6 is provided on one side of the valve core 8, a limit assembly for keeping the valve normally open is provided on the top of the valve body 1, and a guide component for changing the flow direction of gas is provided on one side of the valve core 8. By providing the S-shaped air passage groove 5 and the cylindrical valve core 8, the flow direction of gas can be changed, and the gas flow energy can be increased at the same time, so as to achieve the purpose of consuming gas energy. The cylindrical valve core 8 design strengthens the overall thickness of the valve core 8, thereby strengthening the overall strength of the valve core 8, improving the impact resistance of the valve core 8, and at the same time, when the gas impacts the valve core 8, the flow direction of the gas can be changed, thereby disturbing the flow direction of the gas, reducing the gas impact of the valve core 8, and thus improving the service life of the valve core 8.

[0024] Among them, the guide component is a plurality of guide grooves 9, and the plurality of guide grooves 9 are all opened on one side of the valve core 8, and the plurality of guide grooves 9 are evenly distributed. The gas enters from both ends of the guide groove 9. The gas that is initially guided by the cylindrical valve core 8 will enter from the large mouth end of the guide groove 9, and a small amount of gas will enter from the small mouth end of the guide groove 9. The gas at both ends is gathered in the guide groove 9, and the gas entering from the large mouth end will impact the gas entering from the small mouth end, thereby offsetting the flow rate of the gas, thereby reducing the impact of the gas and improving the impact resistance of the valve.

[0025] The limit assembly includes a connecting rod 10, which is rotatably connected to the top of the valve core 8. A magnetic block 11 is fixed to the outer side of the circumference of the connecting rod 10 by bolts. Two support plates 13 matching the outer side of the connecting rod 10 are fixed to the top outer wall of the valve body 1 by bolts, and the magnetic block 11 is in contact with one of the support plates 13. A avoidance hole 16 is provided on the top outer wall of the valve body 1, and the connecting rod 10 is movably connected in the avoidance hole 16. An elastic component for pushing the valve core 8 to move downward is provided on the top of the valve core 8. A power component for pulling the connecting rod 10 to rotate is provided on the top outer wall of the valve body 1, and the elastic component is a spring 15. The spring 15 is welded to the top of the valve core 8, and the spring 15 is fixed to the slide groove 4. The power component is the electromagnet 17, and the electromagnet 17 is fixed to the top outer wall of the valve body 1 by bolts, and the electromagnet 17 can be adsorbed with the magnetic block 11. The electromagnet 17 is started to generate magnetic force and adsorbed with the magnetic block 11, so that the magnetic block 11 and the connecting rod 10 rotate synchronously, and then the magnetic block 11 rotates to the top of the avoidance groove 12. At this time, the compressed spring 15 will squeeze the valve core 8 to move downward in the slide groove 4, so that the air hole 6 and the air groove 5 are out of the connected state, thereby realizing the closure of the valve, and then achieving the explosion-proof effect of the valve.

[0026] Among them, a avoidance groove 12 is formed between the two support plates 13, and a pull ring 18 is provided on the top of the connecting rod 10 for pulling the connecting rod 10 upward. The connecting rod 10 and the valve core 8 can be pulled upward from the bottom of the slide groove 4 through the pull ring 18 to facilitate the resetting of the valve core 8.

[0027] Among them, a protective cover 2 is fixed to the top of the valve body 1 by bolts, and the electromagnet 17, the support plate 13 and the connecting rod 10 are all inside the protective cover 2 to prevent foreign objects from touching the connecting rod 10, the electromagnet 17 and the support plate 13, thereby protecting the connecting rod 10, the electromagnet 17 and the support plate 13.

[0028] Among them, installation grooves 7 are opened at the upper and lower ends of the slide groove 4, and a sealing ring 3 is bonded in the installation groove 7. The sealing ring 3 is in contact with the valve core 8 to improve the sealing between the valve core 8 and the valve body 1 to prevent gas leakage.

[0029] The working principle of the utility model is as follows: when an explosion occurs in the pipeline, the electromagnet 17 starts to generate magnetic force, which is attracted to the magnetic block 11, so that the magnetic block 11 and the connecting rod 10 rotate synchronously, and then the magnetic block 11 rotates to the top of the avoidance groove 12. At this time, the compressed spring 15 will squeeze the valve core 8 to move downward in the slide groove 4, so that the air hole 6 and the air groove 5 are disconnected from the connected state, thereby achieving the closure of the valve. The S-shaped air groove 5 can change the flow direction of the gas and increase the gas flow energy at the same time, so as to achieve the purpose of consuming gas energy. The cylindrical valve core 8 design strengthens the overall thickness of the valve core 8, thereby strengthening the overall strength of the valve core 8 and improving the impact resistance of the valve core 8. At the same time, when the gas impacts the valve core 8, the flow direction of the gas can be changed, thereby disturbing the flow direction of the gas, reducing the gas impact on the valve core 8, and thus increasing the service life of the valve core 8.

[0030] This embodiment is applicable to gas extraction pipelines, exhaust pipes, and gas transmission pipelines for power generation. It can quickly execute actions through electromagnet attraction, has fast switching speed, stable and reliable performance, and long service life.

[0031] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. An impact-resistant explosion-proof valve, comprising a valve body (1), wherein an S-shaped air passage groove (5) is provided inside the valve body (1), and characterized in that: The valve body (1) is provided with a slide groove (4) inside, and the slide groove (4) is connected with the air passage groove (5), a valve core (8) which is generally cylindrical is slidably connected inside the slide groove (4), an air passage hole (6) is provided on one side of the valve core (8), a limit assembly for keeping the valve normally open is provided on the top of the valve body (1), and a guide component for changing the gas flow direction is provided on one side of the valve core (8).

2. The impact-resistant explosion-proof valve according to claim 1, characterized in that: The flow guide component is a plurality of flow guide grooves (9), the plurality of flow guide grooves (9) are all arranged on one side of the valve core (8), and the plurality of flow guide grooves (9) are evenly distributed.

3. The impact-resistant explosion-proof valve according to claim 1, characterized in that: The limit assembly comprises a connecting rod (10), the connecting rod (10) is rotatably connected to the top of the valve core (8), a magnetic block (11) is fixedly connected to the outer circumferential side of the connecting rod (10), the top outer wall of the valve body (1) is fixedly connected to two support plates (13) matching the outer side of the connecting rod (10), and the magnetic block (11) is in contact with one of the support plates (13), a avoidance hole (16) is provided on the top outer wall of the valve body (1), and the connecting rod (10) is movably connected in the avoidance hole (16), an elastic component for pushing the valve core (8) to move downward is provided on the top of the valve core (8), and a power component for pulling the connecting rod (10) to rotate is provided on the top outer wall of the valve body (1).

4. The impact-resistant explosion-proof valve according to claim 3, characterized in that: The elastic component is a spring (15), the spring (15) is fixedly connected to the top of the valve core (8), and the spring (15) is fixed to the slide groove (4).

5. The impact-resistant explosion-proof valve according to claim 3, characterized in that: The power component is an electromagnet (17), which is fixedly connected to the top outer wall of the valve body (1), and the electromagnet (17) can be adsorbed by the magnetic block (11).

6. The impact-resistant explosion-proof valve according to claim 3, characterized in that: A avoiding groove (12) is formed between the two support plates (13), and a pull ring (18) for pulling the connecting rod (10) to move upward is provided on the top of the connecting rod (10).

7. The impact-resistant explosion-proof valve according to claim 5, characterized in that: The top of the valve body (1) is fixedly connected to a protective cover (2), and the electromagnet (17), the support plate (13) and the connecting rod (10) are all inside the protective cover (2).

8. The impact-resistant explosion-proof valve according to claim 1, characterized in that: The upper and lower ends of the slide groove (4) are both provided with mounting grooves (7), a sealing ring (3) is fixedly connected in the mounting groove (7), and the sealing ring (3) is in contact with the valve core (8).

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