CN219159634U

CN219159634U - Explosion-proof overpressure exhaust valve

Info

Publication number: CN219159634U
Application number: CN202223572366.5U
Authority: CN
Inventors: 江成超
Original assignee: Xinjiang Huiding Civil Air Defense Engineering Co ltd
Current assignee: Xinjiang Huiding Civil Air Defense Engineering Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-09
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses an explosion-proof overpressure exhaust valve, which belongs to the technical field of civil air defense and comprises an exhaust pipe, an exhaust valve and a dust filter disc, wherein the exhaust valve is arranged outside the exhaust pipe, an opening is formed in the top of the exhaust valve, the dust filter disc is movably installed inside the exhaust valve, and an explosion-proof mechanism capable of reducing the impact force of explosion shock waves and a sealing mechanism capable of conveniently and rapidly connecting the exhaust pipe with the exhaust valve and sealing the connecting part are arranged inside the exhaust valve. According to the utility model, the buffer pad of the explosion-proof mechanism, the seal groove seat, the guide rod, the explosion-proof cover, the seal edge, the concave plate and the explosion-proof pad are arranged for use in a matched manner, the explosion-proof cover is pushed to move by utilizing the impact generated by the shock wave generated by explosion, so that the seal edge is quickly matched with the seal groove seat to quickly close the vent of the exhaust valve, the impact is prevented from passing through the exhaust valve, and the impact force generated by the residual wave of the shock wave is weakened by utilizing the movement of the explosion-proof pad and the concave plate.

Description

Explosion-proof overpressure exhaust valve

Technical Field

The utility model belongs to the technical field of civil air defense, and particularly relates to an explosion-proof overpressure exhaust valve.

Background

The overpressure exhaust valve is a main device for ventilation of the civil air defense basement, and when explosion occurs around, the overpressure exhaust valve can block invasion of explosion residual wave and shock wave by sealing the ventilation opening, so as to protect a building on the other side of the civil air defense building.

The utility model provides a CN201921678352.7 superpressure exhaust valve, including sealed base, the hinge, the pull rod, the slider, the shock attenuation is glued, the rubber pad, flexible pipe, mount pad and bolt hole, sealed base is installed to valve main part downside, the pull rod is installed to the terminal surface under the sealed base, both sides are connected with the hinge about the pull rod, the slider is installed to the pull rod downside, the shock attenuation is glued on the slider right side, the mount pad is installed to the pull rod downside, the bolt hole has been seted up to the mount pad inside, the rubber pad is assembled to the mount pad lower terminal surface, flexible pipe is installed to the mount pad upside, this kind of novel impact resistance's that has the superpressure exhaust valve of being convenient for improvement effect.

According to research and analysis, the device has the advantages that the shock-absorbing glue and the sliding block are tightly attached to achieve the effect of improving shock resistance, the vent hole of the exhaust valve is not immediately sealed when the device is impacted by shock waves, so that the shock waves which are weakened and blocked partially overflow to the other side of the civil air defense wall to damage the building on the other side, the device is directly fixed by bolts in the process of being connected with the vent pipe, the connection is not firm enough, and the sealing performance of the connection of the exhaust valve is easily reduced when the device is impacted by the shock waves for a long time.

Disclosure of Invention

The utility model aims at: in order to solve the problems that the connection of the exhaust valve is unstable, the sealing performance is low, and shock waves cannot be intercepted efficiently, the explosion-proof overpressure exhaust valve is provided.

The technical scheme adopted by the utility model is as follows: the utility model provides an explosion-proof superpressure exhaust valve, includes blast pipe, exhaust valve, dust filter disc, the blast pipe outside has the exhaust valve, and the exhaust valve top is provided with the opening, the inside movable mounting of exhaust valve has the dust filter disc, and the dust filter disc is circular setting, the inside explosion-proof mechanism that can reduce the impact force of explosion shock wave and the sealing mechanism that can be convenient quick is connected blast pipe and exhaust valve and seal junction.

Wherein, sealing mechanism is including preventing slow-witted connecting block, connection edge, spout, prevent slow-witted spread groove, smooth edge, seal rubber ring A, agreeing with the groove, seal rubber ring B, agreeing with the edge, wherein, exhaust pipe top four ends all are provided with prevents slow-witted connecting block, the exhaust pipe top is provided with the connection edge, the outside activity nestification of connection edge is provided with seal rubber ring B, and seal rubber ring B bottom and connection edge between elastic connection have the spring, seal rubber ring B top is provided with agreeing with the edge, the inboard laminating of exhaust valve bottom is provided with seal rubber ring A, is seal rubber ring A bottom and is provided with agreeing with the groove, and agrees with and be agreeing with the setting between the groove, the dust filter disc outside is provided with smooth edge, exhaust valve inner wall is provided with the spout, and is slip agreeing with setting between the two through the bolt fastening, exhaust valve bottom all is provided with prevents slow-witted spread groove and prevents slow-witted spread connecting block and is agreeing with setting, and is agreeing with setting between the two, and through the bolt through the penetration fixation.

Wherein, explosion-proof mechanism includes blotter, seal groove seat, guide bar, explosion-proof lid, sealed edge, indent board, explosion-proof pad, wherein, the inside seal groove seat that is close to the opening outside of exhaust valve, the inside elastic fit of seal groove seat has the blotter, seal groove seat outer wall one end is provided with the guide bar, two the activity is provided with explosion-proof lid between the guide bar, and is connected with the spring between guide bar and the explosion-proof lid, the outer edge top of explosion-proof lid is provided with sealed edge, and is the fit setting between sealed edge and the seal groove seat, and sealed edge outside laminating has the sealing washer to seal, and the laminating of guide bar surface is provided with the damping layer, and the spout inboard of explosion-proof lid both sides and guide bar contact is provided with the tooth of rubber material, the explosion-proof lid inboard is provided with indent board through spring elastic connection, indent board surface laminating is provided with explosion-proof pad.

Wherein, the explosion-proof pad is the explosion-proof pad of high resilience sponge material.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the sealing mechanism is arranged, and the fool-proof connecting block, the connecting edge, the sliding groove, the fool-proof connecting groove, the sliding edge, the sealing rubber ring A, the engaging groove, the sealing rubber ring B and the engaging edge are matched for use, so that the exhaust pipe and the exhaust valve can be conveniently and rapidly connected in a sealing manner, the dust filter disc can be conveniently replaced, and the filtering efficiency of air passing through the exhaust valve is improved.

2. According to the utility model, the buffer pad of the explosion-proof mechanism, the seal groove seat, the guide rod, the explosion-proof cover, the seal edge, the concave plate and the explosion-proof pad are arranged for use in a matched manner, the explosion-proof cover is pushed to move by utilizing the impact generated by the shock wave generated by explosion, the seal edge is quickly matched with the seal groove seat, so that the vent of the exhaust valve is quickly closed, the impact is prevented from passing through the exhaust valve, and the impact force generated by the residual wave of the shock wave is weakened by utilizing the movement of the explosion-proof cover and the concave plate.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional exploded structure of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of the present utility model;

FIG. 3 is a schematic diagram of the enlarged construction of FIG. 2A according to the present utility model;

fig. 4 is a schematic diagram of the enlarged structure of fig. 2B according to the present utility model.

The marks in the figure: 1. an exhaust pipe; 101. fool-proof connecting blocks; 102. a connecting edge; 2. an exhaust valve; 201. a chute; 202. fool-proof connecting grooves; 3. a dust filter disc; 301. a sliding edge; 4. a cushion pad; 5. a sealing rubber ring A; 501. a fitting groove; 6. a sealing rubber ring B; 601. a mating edge; 7. a seal groove seat; 701. a guide rod; 702. an explosion-proof cover; 7021. a sealing edge; 8. an inward concave plate; 801. an explosion-proof pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1-4, an explosion-proof overpressure exhaust valve comprises an exhaust pipe 1, an exhaust valve 2 and a dust filter disc 3, wherein the exhaust valve 2 is arranged outside the exhaust pipe 1, an opening is formed in the top of the exhaust valve 2, the dust filter disc 3 is movably installed inside the exhaust valve 2, the dust filter disc 3 is arranged in a circular shape, and an explosion-proof mechanism capable of reducing the impact force of explosion shock waves and a sealing mechanism capable of conveniently and rapidly connecting the exhaust pipe 1 with the exhaust valve 2 and sealing a connecting position are arranged inside the exhaust valve 2.

Referring to fig. 1-4, in this embodiment, the sealing mechanism includes a foolproof connection block 101, a connection edge 102, a sliding chute 201, a foolproof connection groove 202, a sliding edge 301, a sealing rubber ring A5, a fitting groove 501, a sealing rubber ring B6, and a fitting edge 601, wherein the foolproof connection block 101 is disposed at the four ends of the top of the exhaust pipe 1, the connection edge 102 is disposed at the top end of the exhaust pipe 1, the sealing rubber ring B6 is movably nested outside the connection edge 102, a spring is elastically connected between the bottom of the sealing rubber ring B6 and the connection edge 102, the fitting edge 601 is disposed at the top end of the sealing rubber ring B6, the sealing rubber ring A5 is disposed at the inner side of the bottom of the exhaust valve 2, the fitting groove 501 is disposed at the bottom end of the sealing rubber ring A5, the fitting groove 501 is disposed between the fitting edge 601 and the fitting groove 501, the sliding edge 301 is disposed at the outer side of the dust filter disc 3, the sliding chute 201 is disposed at the inner wall of the exhaust valve 2, the sliding edge 301 is disposed between the sliding edge 201 and the sliding edge 201, the two are fixed by bolts, foolproof connecting grooves 202 are arranged at the four ends of the bottom of the exhaust valve 2, the foolproof connecting grooves 202 and the foolproof connecting blocks 101 are trapezoidal, the foolproof connecting grooves 202 and the foolproof connecting blocks 101 are matched, and are penetrated and fixed by bolts, an installer penetrates and installs the exhaust pipe 1 into a civil air defense wall, so that the two ends of the exhaust pipe 1 are respectively positioned at the two sides of the civil air defense wall, then the foolproof connecting grooves 202 at the bottom of the exhaust valve 2 are matched and connected with the corresponding foolproof connecting blocks 101 at one end of the exhaust pipe 1, meanwhile, the connecting edge 102 is inserted into the inner side of the bottom end of the exhaust valve 2, so that a sealing rubber ring B6 moving outside the connecting edge 102 is fully contacted with a sealing rubber ring A5, thereby sealing the joint of the exhaust pipe 1 and the sealing rubber ring B6 are contacted with the sealing rubber ring A5, and the matching groove 501 are fully matched with the matching edge 601, thereby further sealing the connection between the two and finally fixing the connection between the fool-proof connecting block 101 and the fool-proof connecting groove 202 by screwing in the bolt.

Referring to fig. 1-4, in this embodiment, the explosion-proof mechanism includes a cushion pad 4, a seal groove seat 7, a guide rod 701, an explosion-proof cover 702, a sealing edge 7021, an inner concave plate 8, and an explosion-proof pad 801, wherein the seal groove seat 7 is disposed inside the exhaust valve 2 near the outside of the opening, the cushion pad 4 is elastically attached to the inside of the seal groove seat 7, the guide rod 701 is disposed at one end of the outer wall of the seal groove seat 7, the explosion-proof cover 702 is movably disposed between the two guide rods 701, a spring is connected between the guide rod 701 and the explosion-proof cover 702, the sealing edge 7021 is disposed at the top end of the outer edge of the explosion-proof cover 702, the sealing edge 7021 is in fit with the seal groove seat 7, the sealing edge 7021 is attached with a sealing ring, the surface of the guide rod 701 is attached with a damping layer, the inner side of the chute where the two sides of the explosion-proof cover 702 are in contact with the guide rod 701 is provided with teeth made of rubber material, the inner concave plate 8 is elastically connected to the inner side of the explosion-proof cover 702 through the spring, the explosion-proof pad 801 is attached to the surface of the inner concave plate 8, when explosion occurs outside, residual waves generated by the explosion can form shock waves to contact with a civil air-proof wall, impact force of the shock waves can push the explosion-proof cover 702 to move outwards, while moving, teeth on the inner side of a chute where two sides of the explosion-proof cover 702 are contacted with the guide rod 701 are fully contacted with a damping layer on the surface of the guide rod 701, so that damping effect on the explosion-proof cover 702 can be achieved, the explosion-proof cover 702 is prevented from being returned too quickly due to spring rebound, afterwards, the sealing edge 7021 is fully contacted with the buffer pad 4 to unload the shock waves, meanwhile, the sealing groove seat 7 is matched with the sealing edge 7021 can seal an air circulation opening to prevent the shock waves from penetrating the other side of the civil air-proof wall, and meanwhile, the shock waves push the inner concave plate 8 to move towards the inner side of the explosion-proof cover 702 under the action of the spring to further unload the shock waves, and finally, the arc-shaped protrusions on the surface of the explosion-proof pad 801 are utilized to locally absorb the shock waves, so that the impact is weakened.

Referring to fig. 1-4, in this embodiment, the explosion-proof pad 801 is made of a high-resilience sponge material, and has good sound absorption and buffering effects because of the high-resilience sponge material, so that when an explosion occurs, the shock wave generated by the explosion contacts with the explosion-proof pad 801, and the shock wave can be locally absorbed through the arc-shaped protrusions on the surface of the high-resilience sponge material, thereby playing a role in weakening the impact.

Working principle: firstly, an installer penetratingly installs the exhaust pipe 1 into a civil air defense wall, so that two ends of the exhaust pipe 1 are respectively positioned at two sides of the civil air defense wall, then, a foolproof connecting groove 202 at the bottom of an exhaust valve 2 is in fit connection with a corresponding foolproof connecting block 101 at one end of the exhaust pipe 1, meanwhile, a connecting edge 102 is inserted into the inner side of the bottom end of the exhaust valve 2, a sealing rubber ring B6 moving outside the connecting edge 102 is fully contacted with a sealing rubber ring A5, thus, the joint of the exhaust pipe 1 and the exhaust valve 2 is sealed, the sealing rubber ring B6 is fully engaged with a fitting edge 601 while being contacted with the sealing rubber ring A5, so that the connection of the sealing rubber ring B6 and the foolproof connecting block 101 and the foolproof connecting block 202 are further sealed, finally, a gap is reserved between the exhaust valve 2 and the explosion-proof cover 702 for daily air flowing work through a screw bolt, the circulated air passes through the dust filter disc 3, dust in the air is filtered by utilizing the dust filter disc 3, when the outside explodes, the residual wave generated by the explosion can form shock wave to contact with a civil air defense wall, the impact force of the shock wave can push the explosion-proof cover 702 to move outwards, the damping effect on the explosion-proof cover 702 can be achieved by fully contacting teeth on the inner side of a sliding groove which is contacted with the guide rod 701 on two sides of the explosion-proof cover 702 with a damping layer on the surface of the guide rod 701 while moving, the explosion-proof cover 702 is prevented from being quickly reset due to spring rebound, then the sealing edge 7021 is fully contacted with the cushion pad 4 to unload the shock wave, meanwhile, the sealing groove seat 7 and the sealing edge 7021 can seal an air circulation opening to prevent the shock wave from penetrating the other side of the civil air defense wall, and meanwhile, the shock wave pushes the inner concave plate 8 to move towards the inner side of the explosion-proof cover 702 under the action of the spring, the impact wave is further unloaded, and finally the arc-shaped protrusions on the surface of the explosion-proof pad 801 are utilized to locally absorb the impact wave, so that the impact is weakened, and finally, the exhaust valve 2 can be unloaded through the reverse operation of the method under the daily condition, the fixed sliding edge 301 and the bolts of the sliding groove 201 are unscrewed, and the sliding edge 301 slides out of the sliding groove 201 to replace the dust filter disc 3.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an explosion-proof superpressure exhaust valve, includes blast pipe (1), exhaust valve (2), dust filter dish (3), the blast pipe (1) outside has exhaust valve (2), and exhaust valve (2) top is provided with the opening, exhaust valve (2) inside movable mounting has dust filter dish (3), its characterized in that: the exhaust valve (2) is internally provided with an explosion-proof mechanism capable of reducing the impact force of explosion shock waves and a sealing mechanism capable of conveniently and rapidly connecting the exhaust pipe (1) with the exhaust valve (2) and sealing the connecting position.

2. An explosion proof overpressure vent valve as set forth in claim 1 wherein: sealing mechanism is including preventing slow-witted connecting block (101), connection edge (102), spout (201), prevent slow-witted spread groove (202), smooth edge (301), sealed rubber ring A (5), agreeing with groove (501), sealed rubber ring B (6), agreeing with edge (601), wherein, exhaust pipe (1) top is four all provided with prevents slow-witted connecting block (101), exhaust pipe (1) top is provided with connection edge (102), it is provided with sealed rubber ring B (6) to connect along (102) outside activity nestification, sealed rubber ring B (6) top is provided with agreeing with edge (601), inboard laminating in exhaust valve (2) bottom is provided with sealed rubber ring A (5), is sealed rubber ring A (5) bottom is provided with agreeing with groove (501), dust filter disc (3) outside is provided with smooth edge (301), exhaust valve (2) inner wall is provided with spout (201), exhaust valve (2) bottom is four ends all provided with prevents slow-witted spread groove (202).

3. An explosion proof overpressure vent valve as set forth in claim 1 wherein: the explosion-proof mechanism comprises a buffer cushion (4), a seal groove seat (7), guide rods (701), an explosion-proof cover (702), a sealing edge (7021), an inner concave plate (8) and an explosion-proof pad (801), wherein the seal groove seat (7) is arranged in the exhaust valve (2) and close to the outside of an opening, the buffer cushion (4) is elastically attached to the inside of the seal groove seat (7), the guide rods (701) are arranged at one end of the outer wall of the seal groove seat (7), the explosion-proof cover (702) is movably arranged between the guide rods (701) two, the sealing edge (7021) is arranged at the top end of the outer edge of the explosion-proof cover (702), the inner concave plate (8) is connected with the inner concave plate (801) through spring elastic connection, and the explosion-proof pad (801) is attached to the surface of the inner concave plate (8).

4. An explosion proof overpressure vent valve as set forth in claim 2 wherein: the fool-proof connecting groove (202) and the fool-proof connecting block (101) are trapezoidal, are in fit arrangement, are fixed through bolts, are elastically connected with springs between the bottom of the sealing rubber ring B (6) and the connecting edge (102), and are in fit arrangement between the fit edge (601) and the fit groove (501).

5. An explosion proof overpressure vent valve as set forth in claim 2 wherein: the dust filter disc (3) is arranged in a circular shape, the sliding edge (301) and the sliding groove (201) are in sliding fit, and the sliding edge and the sliding groove are fixed through bolts.

6. An explosion proof overpressure vent valve as set forth in claim 3 wherein: the anti-explosion device is characterized in that a spring is connected between the guide rod (701) and the anti-explosion cover (702), a sealing edge (7021) is matched with the sealing groove seat (7), a sealing ring is attached to the outer side of the sealing edge (7021) for sealing, a damping layer is attached to the surface of the guide rod (701), and teeth made of rubber are arranged on the inner sides of sliding grooves, in contact with the guide rod (701), of the two sides of the anti-explosion cover (702).

7. An explosion proof overpressure vent valve as set forth in claim 3 wherein: the explosion-proof pad (801) is made of high-resilience sponge material.