CN119434815A - Explosion-proof valve device and protective closed door - Google Patents
Explosion-proof valve device and protective closed door Download PDFInfo
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- CN119434815A CN119434815A CN202411701733.8A CN202411701733A CN119434815A CN 119434815 A CN119434815 A CN 119434815A CN 202411701733 A CN202411701733 A CN 202411701733A CN 119434815 A CN119434815 A CN 119434815A
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- Prior art keywords
- explosion
- support body
- ventilation channel
- leaf
- outer frame
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The explosion-proof wave valve device comprises an outer frame, and an explosion-proof wave valve unit, wherein the explosion-proof wave valve unit is arranged in the outer frame and comprises a support body, a hinge is arranged on the support body and is hinged with the support body up and down relative to the support body, and the hinge is turned upwards and downwards and is propped against the outer frame when being acted by shock waves so as to seal a ventilation channel at the upper part of the support body and a ventilation channel at the lower part of the support body. In addition, the invention also provides a protective airtight door. In the invention, the hinge can be overturned under the impact of shock waves so as to cut off the ventilation channel of the outer frame, and can be opened to realize the conduction of the ventilation channel in a normal state. The whole structure of the invention can be entirely composed of metal components, and has longer service life while bearing bidirectional impact. After bearing the impact, the loose-leaf can also be automatically reset, thereby realizing maintenance-free in the whole life cycle.
Description
Technical Field
The invention relates to the technical field related to protective equipment, in particular to an explosion wave-proof valve device and a protective airtight door.
Background
The high-energy electromagnetic pulse can form a serious threat to sensitive electronic, electric equipment and systems in work, and engineering electromagnetic pulse prevention measures are needed to ensure the normal operation and running of the electronic equipment and the wind-electricity-water power equipment in engineering.
For the engineering main body, the wall or the protective layer is thicker, so that the electromagnetic pulse energy entering the engineering main body through the protective layer is very small, and for the opening structure arranged on the engineering main body, the protective structure arranged at the opening is weaker, so that the protective capability of the engineering main body to the electromagnetic pulse is easily reduced. The mouth structure of seting up in the engineering main part generally includes the vent that ventilation air conditioning system set up, can set up explosion-proof ripples valve on the vent among the prior art for guarantee engineering personnel and equipment safety when suffering blasting or impact load, can also guarantee the incessant ventilation of engineering simultaneously. The explosion-proof wave valve can be closed rapidly and automatically under the overpressure effect of the shock wave, most of the shock wave is blocked outside the engineering, and after the shock wave passes, the explosion-proof wave valve can be reset automatically in time, so that normal ventilation inside the engineering is not affected.
In the prior art, the explosion-proof valve is generally classified into a pendulum valve and a rubber tube valve. For the pendulum type valve, the vertical installation can only be carried out, and the pendulum type valve belongs to a gravity sensitive structure, and the normal ventilation and wave-absorbing performance of the pendulum type valve can be directly influenced by the installation verticality. For the rubber tube type valve, the rubber tube type valve cannot resist high temperature, the applicable temperature is between-34 ℃ and 40 ℃, the resistant limiting temperature cannot be higher than 110 ℃, and the rubber tube type valve cannot be installed in high-temperature occasions such as a smoke outlet. In addition, the rubber tube type valve has the problems that the rubber tube type valve is easy to age, short in service life (generally needs to be replaced every 10 years), low in resistance to overpressure design value of shock waves is smaller than 0.6MPa, sensitive to the action direction of the shock waves, incapable of bearing the shock waves in two directions, capable of bearing the action of the forward shock waves only, incapable of bearing the shock waves in the lateral direction or the reverse direction and the like.
Disclosure of Invention
First technical problem
In summary, how to provide an anti-explosion valve with a novel structure, which can bear bidirectional impact and has a longer service life, is a problem to be solved by those skilled in the art.
(II) technical scheme
In order to achieve the above object, the present invention provides the following technical solutions:
The present invention provides an explosion wave shutter device, in the present invention, the explosion wave shutter device includes:
the outer frame is of a cylindrical structure and is provided with a ventilation channel capable of transversely ventilating;
The explosion-proof wave valve unit is arranged in the outer frame and is positioned on the ventilation channel, and comprises a support body, wherein the support body comprises a wave facing surface and a wave backing surface, a loose leaf is arranged on the support body, the loose leaf is arranged on the wave facing surface of the support body and the wave backing surface of the support body, the loose leaf is arranged up and down relative to the support body, and the loose leaf is hinged with the support body;
the hinge can turn upwards and downwards in the vertical direction when being acted by shock waves, and can prop against the outer frame after being turned over so as to seal the ventilation channel at the upper part and the ventilation channel at the lower part of the support body;
When the hinges are not affected by shock waves, the two hinges arranged on the same side have relative movement trend and are separated from the outer frame so as to conduct the ventilation channel at the upper part of the support body and the ventilation channel at the lower part of the support body.
In the explosion wave prevention valve device, the ventilation channel is a linear rectangular channel, the support body is arranged at the middle position in the length direction of the ventilation channel and is positioned at the middle position in the height direction of the ventilation channel, the hinge is of a hard structure, two ends of the hinge are in sliding contact with the inner side surface of the ventilation channel, one side of the hinge is hinged with the support body, and the other side of the hinge is in airtight butt joint with the upper side surface or the lower side surface of the ventilation channel.
Preferably, in the explosion wave prevention valve device provided by the invention, the windward side and the leeward side of the supporting body are both provided with limiting bodies for supporting the hinge in a normal state.
Preferably, in the explosion wave prevention valve device provided by the invention, the limiting body is provided with a contact surface, the contact surface is an inclined surface, and the contact surface abuts against the loose leaf.
Preferably, in the explosion wave prevention valve device provided by the invention, the hinge is of a curved surface structure.
Preferably, in the explosion wave prevention valve device provided by the invention, the hinge is of a plane structure.
Preferably, in the explosion wave prevention valve device provided by the invention, a flexible filter screen is arranged on the side edge of the hinge, which is used for being propped against the ventilation channel, and a filter hole is arranged on the flexible filter screen.
Preferably, in the explosion wave prevention valve device provided by the invention, the hinge is provided with a reinforcing framework.
Preferably, in the explosion wave prevention valve device provided by the invention, the hinge is provided with a return spring, and the return spring is connected with the support body or the hinge on the same side.
Preferably, in the explosion wave prevention valve device provided by the invention, the support body is elastically arranged in the ventilation channel along the airflow flowing direction.
The invention also provides a protective airtight door, which comprises a door leaf, wherein the door leaf is provided with a vent valve mounting window. The invention also comprises the explosion-proof wave valve device, and the explosion-proof wave valve device is arranged on the vent valve mounting window.
(III) beneficial effects
The explosion-proof wave valve device comprises an outer frame, wherein the outer frame is of a cylindrical structure and is provided with a ventilation channel, the explosion-proof wave valve unit is arranged in the outer frame and is positioned on the ventilation channel, the explosion-proof wave valve unit comprises a support body, the support body comprises a wave facing surface and a wave backing surface, a hinge is arranged on the support body and the wave backing surface, the hinge is arranged up and down relative to the support body and hinged with the support body, the hinge is turned upwards and downwards and is abutted against the outer frame when being subjected to impact waves to seal the ventilation channel at the upper part and the ventilation channel at the lower part of the support body, and when not being subjected to the impact waves, the two hinges arranged at the same side have relative movement trend and are separated from the outer frame to conduct the ventilation channel at the upper part and the ventilation channel at the lower part of the support body. In the explosion wave-proof valve device provided by the invention, the support body is arranged in the outer frame, the hinge is arranged through the support body, and the hinge can be overturned under the impact of shock waves so as to cut off the ventilation channel of the outer frame, and in addition, the hinge can be opened to realize the conduction of the ventilation channel in a normal state. The whole structure of the invention can be entirely composed of metal components, and has longer service life while bearing bidirectional impact. After bearing the impact, the loose-leaf can also be automatically reset, thereby realizing maintenance-free in the whole life cycle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Wherein:
FIG. 1 is a schematic diagram of an explosion wave proof valve device in an embodiment of the invention;
FIG. 2 is a schematic diagram of the structure of the explosion wave proof valve device after the hinge structure is changed in the embodiment of the invention;
FIG. 3 is a schematic diagram of a structure of the explosion wave valve device after a hinge on one side of the explosion wave valve device is turned over and closed in an embodiment of the invention;
FIG. 4 is a schematic diagram showing an assembled structure between a supporting body and an outer frame in one embodiment of the present invention;
Fig. 5 is a schematic diagram showing an assembly structure between a support body and an outer frame in another embodiment of the present invention.
In fig. 1 the length, width and height directions are shown, and the direction of impact of the shock wave is shown.
Fig. 1 shows two return springs, one on each side of the support.
In fig. 1 to 5, the correspondence between the component names and the reference numerals is:
The device comprises an outer frame 1, a supporting body 2, a hinge 3, a return spring 4 and a limiting body 5.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. The examples are provided by way of explanation of the invention and not limitation of the invention. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly, and may be, for example, fixedly coupled or detachably coupled, or may be directly coupled or indirectly coupled through intermediate members, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the terms.
Please refer to fig. 1 to 5. The invention provides an explosion wave-proof valve device which is arranged on a vent valve installation window of a protective airtight door, is used for realizing ventilation (gas exchange) and can be timely closed when being impacted by shock waves. In the invention, the explosion wave valve device mainly comprises two parts, namely 1, an outer frame 1,2 and an explosion wave valve unit.
The outer frame 1 is a skeleton structure of an explosion-proof valve device, and is made of a metal material (stainless steel plate or aluminum alloy profile). The outer frame 1 may be formed by bending a metal plate, or may be formed by assembling a plurality of metal members. In one embodiment of the present invention, the outer frame 1 is a cylindrical structure, and in particular, the outer frame 1 may be a rectangular cylindrical structure or a circular cylindrical structure. The outer frame 1 is preferably of a rectangular cylindrical structure, and when the vent valve installation window is designed to be a rectangular window, the number of the explosion wave prevention valve devices in the vent valve installation window can be adjusted. For example, when the explosion proof shutter device is provided as one, the outer frame 1 of the explosion proof shutter device is shape-fitted to the vent shutter mounting window, and can be completely filled on the vent shutter mounting window. When a plurality of explosion proof wave valve devices need to be mounted in one vent valve mounting window, for example, two vent valve mounting windows, the width dimension of the outer frame 1 of the explosion proof wave valve device is kept identical to the width dimension of the vent valve mounting window, but the height dimension of the vent valve mounting window is at least twice the height dimension of the outer frame 1, so that two explosion proof wave valve devices (the two explosion proof wave valve devices are arranged in a row in the height direction) can be mounted in one vent valve mounting window. When the vent valve installation window is provided with a plurality of explosion-proof wave valve devices, sealing strips or sealing plates are required to be arranged between two adjacent explosion-proof wave valve devices and between the explosion-proof wave valve devices and the vent valve installation window so as to ensure that the vent valve installation window can only ventilate through the explosion-proof wave valve devices. When the outer frame 1 is a circular cylindrical knot, an explosion-proof valve device is preferably arranged on a vent valve installation window, namely the vent valve installation window is designed to be a circular window structure, the shape of the outer frame 1 of the explosion-proof valve device is matched with that of the vent valve installation window, and the outer frame 1 is arranged on the vent valve installation window and provided with a sealing strip or a sealing plate. Based on the structural design, a plurality of ventilation valve installation windows can be arranged on the protective airtight door so as to ensure ventilation quantity.
The outer frame 1 is installed on the vent valve installation window and is required to be provided with a sealing strip or a sealing plate, so that the sealing of the joint between the outer frame 1 and the vent valve installation window or between the outer frame 1 and the outer frame 1 is realized, and air flow can only be exchanged through the explosion-proof valve device. The outer frame 1 has ventilation channels for achieving a gas flow, in particular the outer frame 1 has ventilation channels enabling a lateral ventilation, i.e. the ventilation channels are mainly for the passage of a laterally flowing gas flow. In the invention, when the outer frame 1 is of a rectangular cylindrical structure, the ventilation channel is of a rectangular channel structure, and when the outer frame 1 is of a circular cylindrical structure, the ventilation channel is of a circular channel structure.
The explosion wave valve unit is a component arranged inside the outer frame 1, and the overall outline shape of the explosion wave valve unit is designed according to the ventilation channel of the outer frame 1, so that the explosion wave valve unit can be installed inside the ventilation channel and can realize the connection and disconnection of the ventilation channel as a design standard (mainly the shape of a hinge 3 of the explosion wave valve unit is designed).
The explosion proof wave valve unit is fixedly arranged in the outer frame 1 and is positioned on the ventilation channel, and the explosion proof wave valve unit is mainly used for coping with the impact of external shock waves, so that the explosion proof wave valve unit is arranged close to the inner side end of the ventilation channel on the outer frame 1 in the direction from outside to inside (from outside to inside for the airtight protective door), and when the explosion proof wave valve unit is subjected to shock waves, the shock waves can pass through the longer ventilation channel and then impact the explosion proof wave valve unit, and thus the impact energy can be reduced.
The explosion wave-proof valve unit comprises a support body 2, wherein the whole support body 2 is of a rod-shaped structure, the cross section of the support body 2 is preferably rectangular or square, the cross section of the support body can also be round or oval, the support body 2 is made of solid metal profiles, and the support body 2 adopts an integral structural design, so that the structural strength of the support body 2 can be improved, and the high explosion impact and the reliability of the loose-leaf 3 installation can be met. The support body 2 comprises a wave facing surface (a side surface facing to the outside in an actual installation state) and a back wave surface (a side surface facing to the inside in an actual installation state), the hinge 3 is arranged on the support body 2, the hinge 3 is arranged on the wave facing surface of the support body 2 and the back wave surface of the support body 2, the hinge 3 is arranged up and down relative to the support body 2, and the hinge 3 is hinged with the support body 2. Specifically, the hinge 3 is used for being provided with the turn-up structure and is used for forming the round hole structure with the articulated one side of support body 2, is provided with corresponding round hole on support body 2, has set up the articulated shaft through the round hole structure on hinge 3 and the support body 2 to realize the articulated of hinge 3 and support body 2, its structure is similar with hinge structure among the prior art.
The loose-leaf pages 3 can be divided into four types according to the mounting positions of the loose-leaf pages 3 on the supporting body 2, and the loose-leaf pages 3 are respectively provided with an upper edge of a wave-facing surface, a lower edge of the wave-facing surface, an upper edge of a back wave surface and a lower edge of the back wave surface. When the support body 2 is installed in the ventilation channel, the four hinges 3 can be turned over to prop against the inner side surface of the ventilation channel, so that the ventilation channel is cut off.
Specifically, for two kinds of loose-leaf pages 3 disposed above and below the wave-facing surface, when the loose-leaf pages 3 are subjected to the action of a frontal shock wave (i.e., a shock wave directed toward the wave-facing surface), the loose-leaf pages 3 disposed above the wave-facing surface may be turned upward, the loose-leaf pages 3 disposed below the wave-facing surface may be turned downward, and the loose-leaf pages 3 may be abutted against the outer frame 1 (i.e., abutted against the inner side walls of the ventilation channels) after being turned over, so as to seal the ventilation channels at the upper portion and the ventilation channels at the lower portion of the support body 2. For two kinds of loose-leaf 3 that set up about the back wave surface, when loose-leaf 3 receives back shock wave (namely towards the shock wave of back wave surface direction) effect, loose-leaf 3 that sets up in back wave surface upside can upwards overturn, and loose-leaf 3 that sets up in back wave surface downside can downwards overturn, and loose-leaf 3 can with outer frame 1 offset (namely with ventilation channel's inside wall offset) after overturning for seal support body 2 upper portion's ventilation channel and lower part's ventilation channel.
The hinge 3 can turn upwards and downwards in the vertical direction when being acted by shock waves, and the hinge 3 can be propped against the outer frame after turning. The hinge 3 provided at the upper portion of the support body 3 is turned upward (turned downward in the case of reset) when being impacted by a shock wave, and the hinge 3 provided at the lower portion of the support body 3 is turned downward (turned upward in the case of reset) when being impacted by a shock wave. For the same ventilation channel, two hinges are required to be turned over simultaneously to realize the sealing of the ventilation channel.
It should be noted that the edges of the two ends (two ends in the horizontal direction) of the loose-leaf 3 are propped against the ventilation channel and can slide relative to the ventilation channel, so that the edges of the two ends of the loose-leaf 3 can be sealed. Furthermore, the movable track of the hinge 3 corresponding to the ventilation channel is provided with the inward concave fan-shaped groove structure, the edges of the two ends of the hinge 3 extend into the fan-shaped groove structure, and the edges of the two ends of the hinge 3 are propped against the bottom surface (vertical surface) of the fan-shaped groove structure and can slide relatively, so that the sealing of the edges of the two ends of the hinge 3 can be further improved.
For the structure of the leaflet 3, the leaflet 3 is designed according to the shape of the ventilation channel, for example, when the ventilation channel is in a rectangular channel structure, the leaflet 3 adopts a rectangular structure, and when the ventilation channel is in a circular or oval structure, the leaflet 3 adopts a semicircular or semi-oval structure. The shape of the hinge 3 is specifically designed according to the design standard that the hinge can be abutted against the inner side surface of the ventilation channel after being overturned by shock waves to realize the sealing of the ventilation channel (the upper ventilation channel or the lower ventilation channel). In addition, when the loose-leaf 3 is impacted by the shock wave, the included angle between the loose-leaf 3 and the horizontal plane is kept 40-50 degrees after the loose-leaf 3 is turned over, and the loose-leaf 3 can prop against the inner side surface of the ventilation channel to realize the sealing of the ventilation channel.
In the present invention, when the hinges 3 are not subjected to the shock wave, the two hinges 3 disposed at the same side have a relative movement tendency and are separated from the outer frame 1, so as to communicate with the ventilation channel at the upper part of the supporting body 2 and the ventilation channel at the lower part. The leaflet 3 should be separated from the ventilation channel in normal conditions, i.e. when not being impacted by a shock wave, so that the ventilation channel is conducted, and the leaflet 3 needs to have a tendency towards normal conditions. Specifically, the invention arranges a return spring 4 on the loose leaf 3, and the return spring 4 is connected with the supporting body 2 or the loose leaf 3 on the same side. The return spring 4 may be a normal spring (a long straight cylinder spring), and when the return spring 4 is a normal spring, one end of the return spring 4 is connected with the leaflet 3, and the other end of the return spring 4 is connected with the other leaflet 3 on the same side, so that tension can be applied to the two leaflets 3 by the return spring 4, thereby turning the leaflet 3 to the middle. In addition, the return spring 4 can also be a pressure spring, the pressure spring is arranged between the loose-leaf 3 and the supporting body 2, the pressure spring can be pressed to deform when the loose-leaf 3 overturns from a normal state, and after the shock wave, the pressure spring returns to push the loose-leaf 3 back to the normal state.
In the invention, the loose-leaf 3 can be of an integral structure or a split structure, namely, the loose-leaf 3 comprises at least two loose-leaf 3 units, and the two loose-leaf 3 units are arranged in a lamination mode along the width direction of the ventilation channel (namely, adjacent sides of the two adjacent loose-leaf 3 units are overlapped.)
On the horizontal plane, the air supply direction of the ventilation channel is the length direction, the width direction is perpendicular to the length direction, and the height direction is perpendicular to the vertical direction. In one embodiment of the invention, the ventilation channel is a linear rectangular channel, i.e. the ventilation channel is a linear channel in the length direction and a rectangular structure in the height direction. The support body 2 is provided at an intermediate position in the length direction of the ventilation passage and at an intermediate position in the height direction of the ventilation passage. The leaflet 3 is a rigid structure, and the leaflet 3 is preferably a metal leaflet 3, such as a stainless leaflet 3 or an aluminum-profile leaflet 3. When the ventilation channel is a linear rectangular channel, the loose-leaf 3 is a rectangular loose-leaf 3, two ends of the loose-leaf 3 (namely two ends in the width direction of the ventilation channel) are in sliding contact with the inner side surfaces of the ventilation channel (the inner walls of two sides in the width direction of the ventilation channel), one side of the loose-leaf 3 is hinged with the support body 2, and the other side of the loose-leaf 3 is in airtight propping against the upper side surface or the lower side surface of the ventilation channel.
As another structural improvement point of the invention, the invention is provided with a limiting body 5 which is used for supporting the loose-leaf 3 in a normal state so as to keep the loose-leaf 3 in a normal state on the windward side and the leeward side of the supporting body 2. Meanwhile, when the reset spring 4 is arranged, the limiting body 5 can also limit the reset overturning of the loose-leaf 3, so that the phenomenon that the loose-leaf 3 is reset and overturned excessively (the loose-leaf 3 is reset and overturned to be horizontal or close to the horizontal) and the shock wave cannot be intercepted is avoided. Specifically, the limiting device is provided with the contact surface, the contact surface is an inclined surface (an included angle of 40-50 degrees is kept between the contact surface and the horizontal plane), and the contact surface abuts against the loose-leaf 3, so that the loose-leaf 3 can keep a normal state (an included angle of 40-50 degrees is kept between the contact surface and the horizontal plane).
In the present invention, the contour shape of the leaflet 3 is designed according to the shape (cross-sectional shape) of the ventilation channel. The whole structure of the loose leaf 3 can be a flat plate structure or a curved surface structure. When the loose-leaf 3 adopts the curved surface structure design, the bending direction of the loose-leaf 3 is concave towards the port direction of the ventilation channel, namely, the dead loose-leaf 3 is a curved surface structure protruding forwards (towards the other port direction) when seen from the port direction of the ventilation channel. By adopting the curved surface structural design, when the impact of shock waves is born, the area of the hinge 3 is increased, so that the hinge can be more stably propped against the inner side surface of the ventilation channel, and the ventilation channel is cut off. Meanwhile, in a normal state of the loose-leaf 3, air flow can flow through the curved surface of the loose-leaf 3, and the influence of the loose-leaf 3 on the air flow can be reduced.
In order to realize gas filtration, the invention is characterized in that a flexible filter screen is arranged on the side of the hinge 3, which is used for propping against the ventilation channel, and a filter hole is arranged on the flexible filter screen, so that the gas flow can be filtered by the filter screen when passing through the hinge 3. The filter screen is provided with a certain ductility (or a little longer length) so as to ensure that the loose-leaf pages 3 can be turned over smoothly.
In order to avoid the ventilation channel closing failure caused by the deformation of the hinge 3 when the hinge is impacted by shock waves, the hinge 3 is provided with a reinforcing framework which is a metal strip, and the hinge can be arranged on the back surface of the hinge 3 by adopting a net structure.
As a further development of the invention, the invention proposes an optimized design in which the support body 2 is arranged elastically in the ventilation channel in the direction of the air flow. Specifically, rectangular holes are formed in two side walls in the width direction of the ventilation channel, and the rectangular holes are horizontally arranged along the length direction of the ventilation channel. The sliding block is arranged in the strip hole, the baffle is arranged on the outer side of the outer frame 1 and covers the strip hole, so that the sliding block can slide in the strip hole smoothly and simultaneously can seal the strip hole. On the sliding direction of the sliding block, springs are arranged on two sides of the sliding block, so that the sliding block can slide along the strip Kong Zhongdan, two ends of the supporting body 2 are fixedly connected with the sliding block, and therefore the whole explosion-proof wave valve unit can elastically move in the outer frame 1 to buffer impact of shock waves. Further, the rectangular hole can be designed into a rectangular window, the sliding block adopts a rectangular block structure, springs are arranged at four corners of the sliding block, and the springs are connected with the four corners of the rectangular window, so that the sliding block can move in the rectangular window in the two-dimensional direction (namely, the sliding block can elastically move in a vertical face range formed by the rectangular window), and the supporting body 2 can move under the condition that one loose-leaf 3 is closed and fails, and the other loose-leaf 3 on the same side is closed. In this embodiment, the height dimension of the hinge 3 is not smaller than the height dimension of the ventilation channel, that is, one hinge 3 on the same side is closed, and the downward component force after the hinge 3 abuts against the outer frame 1 drives the support body 2 to move until the support body 2 abuts against the inner side surface of the outer frame 1, so that the ventilation channel can be cut off by the hinge 3 on one side.
Based on the explosion-proof wave valve device, the invention also provides a protective airtight door, which comprises a door leaf, wherein the door leaf is provided with a vent valve mounting window, and the explosion-proof wave valve device is arranged on the vent valve mounting window. The number of the explosion-proof valve devices arranged in the vent valve installation window is adjustable.
In the invention, the explosion-proof wave valve device comprises an outer frame 1, an explosion-proof wave valve unit and a support body 2, wherein the outer frame 1 is of a cylindrical structure, the outer frame 1 is provided with a ventilation channel, the explosion-proof wave valve unit is arranged in the outer frame 1 and positioned on the ventilation channel, the support body 2 comprises a wave facing surface and a back wave surface, the support body 2 is provided with a loose leaf 3, the loose leaf 3 is arranged on the wave facing surface of the support body 2 and the back wave surface of the support body 2, the loose leaf 3 is arranged up and down relative to the support body 2, the loose leaf 3 is hinged with the support body 2, the loose leaf 3 is turned upwards and downwards and is propped against the outer frame 1 when being impacted by shock waves so as to seal the ventilation channel at the upper part of the support body 2 and the ventilation channel at the lower part, and the loose leaf 3 is arranged at the same side and has relative movement trend and is separated from the outer frame 1 so as to conduct the ventilation channel at the upper part of the support body 2 and the ventilation channel at the lower part of the same side when not being impacted by shock waves.
Through the structural design, in the explosion wave-proof valve device provided by the invention, the supporting body 2 is arranged in the outer frame 1, the hinge 3 is arranged by the supporting body 2, the hinge 3 can be overturned under the impact of shock waves so as to cut off the ventilation channel of the outer frame 1, and in addition, the hinge 3 can be opened to realize the conduction of the ventilation channel in a normal state. The whole structure of the invention can be entirely composed of metal components, and has longer service life while bearing bidirectional impact. After bearing the impact, the loose-leaf 3 can also be automatically reset, so that maintenance-free in the whole life cycle is realized.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411701733.8A CN119434815B (en) | 2024-11-25 | 2024-11-25 | Explosion-proof valve device and protective airtight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411701733.8A CN119434815B (en) | 2024-11-25 | 2024-11-25 | Explosion-proof valve device and protective airtight door |
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| CN119434815A true CN119434815A (en) | 2025-02-14 |
| CN119434815B CN119434815B (en) | 2025-10-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110183600A1 (en) * | 2010-01-26 | 2011-07-28 | Ctb, Inc. | Air check valve system and method of mounting same |
| CN202560288U (en) * | 2012-04-19 | 2012-11-28 | 山东省天安矿业有限公司 | Anti-blasting-shock-wave air door of mine |
| CN105716850A (en) * | 2016-03-29 | 2016-06-29 | 南京赛百联人防科技有限公司 | Suspension plate type anti-blast valve bidirectional monitoring operation and maintenance sensor module and anti-blast valve |
| CN208564386U (en) * | 2018-07-07 | 2019-03-01 | 安徽力昂人防工程设备有限公司 | One kind dangles formula protective door |
| CN117552701A (en) * | 2023-11-10 | 2024-02-13 | 常州华东人防设备有限公司 | A two-way wave elimination and explosion-proof wave valve |
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- 2024-11-25 CN CN202411701733.8A patent/CN119434815B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110183600A1 (en) * | 2010-01-26 | 2011-07-28 | Ctb, Inc. | Air check valve system and method of mounting same |
| CN202560288U (en) * | 2012-04-19 | 2012-11-28 | 山东省天安矿业有限公司 | Anti-blasting-shock-wave air door of mine |
| CN105716850A (en) * | 2016-03-29 | 2016-06-29 | 南京赛百联人防科技有限公司 | Suspension plate type anti-blast valve bidirectional monitoring operation and maintenance sensor module and anti-blast valve |
| CN208564386U (en) * | 2018-07-07 | 2019-03-01 | 安徽力昂人防工程设备有限公司 | One kind dangles formula protective door |
| CN117552701A (en) * | 2023-11-10 | 2024-02-13 | 常州华东人防设备有限公司 | A two-way wave elimination and explosion-proof wave valve |
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| Publication number | Publication date |
|---|---|
| CN119434815B (en) | 2025-10-31 |
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