Explosion-proof overpressure exhaust valve

Abstract

The utility model relates to the technical field of civil air defense engineering, and discloses an anti-explosion overpressure exhaust valve which comprises an exhaust valve body installed on an installation base, an installation disc is fixedly installed on the outer wall of the exhaust valve body and fixedly installed on the installation base through bolts, a cover plate is hinged to the outer wall of the exhaust valve body, and the cover plate is fixedly installed on the installation base through bolts. A sealing plate is fixedly installed on the outer wall of the cover plate, a stabilizing mechanism is arranged in the exhaust valve, and a sealing mechanism is arranged on the outer wall of the sealing plate. According to the anti-explosion overpressure exhaust valve, an inclined surface of an extrusion block is extruded by an extrusion rod in the stabilizing mechanism, so that the extrusion block can drive an insertion plate on the outer wall to move upwards to be inserted into an insertion groove, the exhaust valve can be mounted more stably, and the exhaust valve is prevented from shaking when being impacted by air pressure; and meanwhile, the inserting plate can move out of the inserting groove through the elastic force of the bearing spring, and the exhaust valve can be conveniently disassembled and overhauled subsequently.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, specifically to an explosion-proof overpressure exhaust valve. Background Technology

[0002] Explosion-proof overpressure exhaust valves are important devices in air-raid shelters. They are installed at various openings in civil defense projects to block or reduce the destructive effects of weapons from entering the interior, ensuring the safety of the interior. To maintain a certain overpressure inside the shelter—that is, the pressure of the gas inside the shelter is greater than the atmospheric pressure outside—they serve to protect against external chemical and toxic gases. Externally, they provide protection against shock waves. This ensures that the shelter has both external shock wave protection and internal overpressure exhaust capabilities.

[0003] The exhaust valve is designed to be sealed. Due to the high internal air pressure, the inside of the exhaust valve is constantly subjected to significant impact forces during use. The existing exhaust valve is only installed and fixed with bolts. Under the continuous impact waves of air pressure, the exhaust valve may loosen and be damaged again, resulting in a reduced service life. Therefore, we need an explosion-proof overpressure exhaust valve. Utility Model Content

[0004] The purpose of this invention is to provide an explosion-proof overpressure exhaust valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof overpressure exhaust valve, comprising an exhaust valve mounted on a mounting base, an mounting plate fixedly mounted on the outer wall of the exhaust valve, the mounting plate being fixedly mounted on the mounting base by bolts, a cover plate hinged to the outer wall of the exhaust valve, a sealing plate fixedly mounted on the outer wall of the cover plate, a stabilizing mechanism provided inside the exhaust valve, and a sealing mechanism provided on the outer wall of the sealing plate, the stabilizing mechanism comprising:

[0006] A slide plate that slides through the interior of the exhaust valve;

[0007] The slot is located inside the mounting base and is adapted to the size of the insert plate. The insertion plate can be moved and inserted into the slot to make the exhaust valve more securely installed.

[0008] Preferably, a compression block is slidably connected to the inner wall of the exhaust valve, the outer wall of the compression block is set as an inclined surface, and the side wall of the compression block is fixedly connected to the outer wall of the insert plate.

[0009] Preferably, the outer wall of the extrusion block is fixedly connected with one end of a bearing spring, the other end of the bearing spring is fixedly connected with the inner wall of the exhaust valve, and the extrusion block drives the insertion plate on the outer wall to move out of the inside of the insertion slot for resetting through the elastic force of the bearing spring.

[0010] Preferably, the outer wall of the cover plate is fixedly installed with an extrusion rod, the end of the extrusion rod is provided in a circular arc shape, the extrusion rod is located at the side of the extrusion block, and the extrusion block is moved upward on the inner wall of the exhaust valve through extrusion of the inclined surface of the extrusion block by rotation of the extrusion rod.

[0011] Preferably, the sealing mechanism comprises a sealing ring, the sealing ring is fixedly installed on the outer wall of the sealing plate, the sealing ring is moved into the inside of the gap of the exhaust valve for sealing, the sealing ring is provided in a conical shape, the sealing ring is conveniently extruded and sealed through the conical shape, sealing blocks are fixedly installed on the outer wall of the sealing ring, and the sealing blocks are distributed in a circular array on the outer wall of the sealing ring.

[0012] Preferably, the inside of the exhaust valve is provided with grooves, the grooves are provided in an array on the exhaust valve, and the grooves are correspondingly arranged between the sealing blocks; the sealing ring is uniformly distributed in the inside of the exhaust valve through movement of the sealing blocks into the inside of the grooves.

[0013] Compared with the prior art, the utility model provides a kind of explosion-proof overpressure exhaust valve, with the following beneficial effects:

[0014] 1、the explosion-proof overpressure exhaust valve, the inclined surface of the extrusion block is extruded by extrusion rod in stable mechanism, the insertion plate on the outer wall can be moved upward and inserted in the inside of insertion slot, the exhaust valve can be installed more stably, prevent from appearing to shake when being impacted by air pressure, simultaneously, the insertion plate can move out of the inside of insertion slot by the elastic force of bearing spring, facilitate subsequent exhaust valve to be disassembled and overhauled.

[0015] 2、the explosion-proof overpressure exhaust valve, the sealing ring in sealing mechanism is provided in conical shape and is conveniently extruded and sealed, simultaneously, each sealing block moves into the inside of different groove, the sealing ring can be uniformly distributed in the inside of exhaust valve, prevent extrusion sealing ring from being deformed and leading to insufficient sealing. ACCURACY

[0016] Figure 1 it is whole front view structure schematic diagram of the utility model;

[0017] Figure 2 it is part structure schematic diagram of the utility model;

[0018] Figure 3 it is the utility model Figure 1A structure amplification schematic view;

[0019] Figure 4 For the utility model Figure 2 B structure amplification schematic view.

[0020] In the figure: 1, mounting seat; 2, exhaust valve; 3, mounting disc; 4, cover plate; 5, stable mechanism; 51, plugboard; 52, slot; 53, extrusion block; 54, bearing spring; 55, extrusion rod; 6, sealing plate; 7, sealing mechanism; 71, sealing ring; 72, sealing block; 73, groove. DETAILED DESCRIPTION

[0021] As Figures 1-4 shown, the utility model provides a technical scheme: an explosion-proof overpressure exhaust valve, including the exhaust valve 2 of installing on the mounting seat 1, the outer wall of exhaust valve 2 is fixedly installed with mounting disc 3, and mounting disc 3 is fixedly installed on mounting seat 1 by bolt, and the outer wall of exhaust valve 2 is hinged with cover plate 4, and the outer wall of cover plate 4 is fixedly installed with sealing plate 6, and by pushing cover plate 4, sealing plate 6 can be driven to overturn and close the gap of exhaust valve 2, the inside of exhaust valve 2 is provided with stable mechanism 5, and the outer wall of sealing plate 6 is provided with sealing mechanism 7.

[0022] In the embodiment, the inside of exhaust valve 2 is provided with stable mechanism 5, the inclined surface of extrusion block 53 is extruded by extrusion rod 55 in stable mechanism 5, extrusion block 53 can drive plugboard 51 on the outer wall to move upwards and be inserted in the inside of slot 52, exhaust valve 2 can be installed more stably, and shaking when being impacted by air pressure is prevented, simultaneously, plugboard 51 can move out of the inside of slot 52 by the elasticity of bearing spring 54, which is convenient for subsequent dismounting and overhauling of exhaust valve 2.

[0023] In the embodiment, the outer wall of sealing plate 6 is provided with sealing mechanism 7, sealing ring 71 in sealing mechanism 7 is provided with conical shape and is extruded and sealed simultaneously, and each sealing block 72 moves in the inside of different groove 73, sealing ring 71 can be evenly distributed in the inside of exhaust valve 2, and deformation of extruded sealing ring 71 leading to insufficient sealing is prevented.

[0024] The stable mechanism 5 includes an insertion plate 51 sliding through the inside of the exhaust valve 2, the inside of the mounting base 1 is provided with an insertion slot 52, the size of the insertion slot 52 is adapted to the insertion plate 51, the insertion plate 51 on the outer wall is driven upward by the extrusion block 53 and inserted into the inside of the insertion slot 52, which can make the exhaust valve 2 more stable, the extrusion block 53 is slidingly connected to the inner wall of the exhaust valve 2, the outer wall of the extrusion block 53 is provided in a slope shape, the extrusion block 53 is extruded by the extrusion rod 55 on the outer wall driven by the cover plate 4, which can make the extrusion block 53 move upward on the inner wall of the exhaust valve 2, the side wall of the extrusion block 53 is fixedly connected to the outer wall of the insertion plate 51, the outer wall of the extrusion block 53 is fixedly connected to one end of the bearing spring 54, the other end of the bearing spring 54 is fixedly connected to the inner wall of the exhaust valve 2, the extrusion block 53 can drive the insertion plate 51 on the outer wall to move out of the inside of the insertion slot 52 by the elastic force of the bearing spring 54, which facilitates the disassembly and maintenance of the exhaust valve 2, the extrusion rod 55 is fixedly installed on the outer wall of the cover plate 4, the end of the extrusion rod 55 is provided in a circular arc shape, and the extrusion rod 55 is located at the side of the extrusion block 53.

[0025] The sealing mechanism 7 includes a sealing ring 71 fixedly installed on the outer wall of the sealing plate 6, which can drive the sealing ring 71 on the outer wall to move into the gap of the exhaust valve 2 for sealing, the sealing ring 71 is provided in a conical shape, which can be easily extruded and sealed, the sealing block 72 is fixedly installed on the outer wall of the sealing ring 71, the sealing block 72 is distributed in a circular array on the outer wall of the sealing ring 71, the recess 73 is provided in the inside of the exhaust valve 2, the recess 73 is provided in an array on the exhaust valve 2, and the recess 73 is correspondingly provided between the sealing block 72, which can make the sealing ring 71 evenly distributed in the inside of the exhaust valve 2, preventing the sealing ring 71 from being deformed due to extrusion and causing insufficient sealing.

[0026] When the exhaust valve 2 needs to be closed, the cover plate 4 is pushed to drive the sealing plate 6 to flip and close the gap of the exhaust valve 2. At this time, the extrusion rod 55 on the outer wall is driven by the cover plate 4 to rotate and extrude the inclined surface of the extrusion block 53, so that the extrusion block 53 moves upward on the inner wall of the exhaust valve 2, and then the insertion plate 51 on the outer wall is driven by the extrusion block 53 to move upward and be inserted into the insertion slot 52, so that the exhaust valve 2 is installed more stably and prevents shaking when subjected to air pressure impact. At the same time, the sealing ring 71 on the outer wall is driven by the sealing plate 6 to move into the gap of the exhaust valve 2, and the sealing ring 71 is set in a conical shape to facilitate being extruded and sealed. Then, the sealing block 72 moves into the groove 73, so that the sealing ring 71 is evenly distributed in the exhaust valve 2, preventing deformation of the extruded sealing ring 71 from causing insufficient sealing. When the cover plate 4 is opened, the extrusion rod 55 no longer extrudes the outer wall of the extrusion block 53. At this time, the extrusion block 53 drives the insertion plate 51 on the outer wall to move out of the insertion slot 52 by the elastic force of the bearing spring 54, and the limiting is released to facilitate subsequent disassembly and maintenance of the exhaust valve 2.

[0027] The above has made a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. An explosion-proof overpressure exhaust valve comprising an exhaust valve (2) mounted on a mounting base (1), characterized in that: The outer wall of the exhaust valve (2) is fixedly installed with a mounting disc (3), the mounting disc (3) is fixedly installed on the mounting seat (1) through bolts, the outer wall of the exhaust valve (2) is hingedly connected with a cover plate (4), the outer wall of the cover plate (4) is fixedly installed with a sealing plate (6), the inside of the exhaust valve (2) is provided with a stabilizing mechanism (5), the outer wall of the sealing plate (6) is provided with a sealing mechanism (7), and the stabilizing mechanism (5) comprises: The plug (51) is slidably penetrated through the inside of the exhaust valve (2); The plug slot (52) is arranged in the inside of the mounting seat (1), and the size of the plug slot (52) is adapted to that of the plug (51).

2. An explosion relief overpressure exhaust valve according to claim 1, characterized in that: The inner wall of the exhaust valve (2) is slidably connected with an extrusion block (53), the outer wall of the extrusion block (53) is provided in a slope shape, and the side wall of the extrusion block (53) is fixedly connected with the outer wall of the plug (51).

3. An explosion relief overpressure exhaust valve according to claim 2, characterised in that: The outer wall of the extrusion block (53) is fixedly connected with one end of the bearing spring (54), and the other end of the bearing spring (54) is fixedly connected with the inner wall of the exhaust valve (2).

4. An explosion relief overpressure exhaust valve according to claim 3, characterised in that: The outer wall of the cover plate (4) is fixedly installed with an extrusion rod (55), the end portion of the extrusion rod (55) is provided in a circular arc shape, and the extrusion rod (55) is located at the side of the extrusion block (53).

5. An explosion relief overpressure exhaust valve according to claim 4, characterised in that: The sealing mechanism (7) comprises a sealing ring (71), the sealing ring (71) is fixedly installed on the outer wall of the sealing plate (6), the sealing ring (71) is provided in a conical shape, the outer wall of the sealing ring (71) is fixedly installed with a sealing block (72), and the sealing block (72) is arranged in a circumferential array on the outer wall of the sealing ring (71).

6. An explosion relief overpressure exhaust valve according to claim 5, characterised in that: The inside of the exhaust valve (2) is provided with a groove (73), the groove (73) is arranged in an array on the exhaust valve (2), and the groove (73) is correspondingly arranged between the sealing block (72).

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