Pendulum type anti-explosion valve

Abstract

The utility model discloses a dangling anti-explosion valve, and relates to the technical field of civil air defense engineering. The door comprises a door frame, a through groove is formed in the side wall of the door frame, a filtering assembly is arranged in the through groove, a filtering plate in the filtering assembly is arranged in the through groove, an inserting rod is connected to the side wall of a movable frame arranged on the side wall of the filtering plate, and the inserting rod is connected with an inserting hole formed in the inner side wall of the through groove in an inserted mode. A through hole is formed in the side wall of a sliding block fixedly connected to the inner side wall of the movable frame. A dangling valve assembly is arranged on the outer side wall of the door frame. According to the utility model, the filter component is arranged, so that the working steps during disassembly and assembly of the filter plate are effectively simplified, the filter plate is conveniently and quickly disassembled and assembled, the disassembly, assembly, cleaning and replacement of the filter plate are facilitated, and the dangling valve component is arranged, so that the impact force between the dangling loose-leaf door and the door frame is effectively buffered while the automatic opening and closing of the dangling loose-leaf door are facilitated; and the protection effect and the stability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil air defense engineering, in particular to a suspended swing type explosion-proof wave valve. Background Art

[0002] Civil air defense projects refer to underground protective buildings and their ground ancillary buildings and structures specially built to ensure civil air defense during wartime, as well as basements built in conjunction with ground buildings that can be used for air defense during wartime; among them, blast-proof valves refer to protective ventilation equipment used in civil air defense projects to ensure uninterrupted ventilation in the project in the event of an air raid;

[0003] The main structures of the explosion-proof wave valve include: door frame, bottom plate, pendulum plate, pendulum hinge, buffer rubber pad and limiter. Under normal circumstances, the explosion-proof wave valve maintains a certain opening angle under the action of the eccentric moment of its own weight, allowing air to enter the project through the gap between the pendulum plate and the bottom plate and the openings on the bottom plate. When the explosion-proof wave valve encounters a shock wave, the pendulum plate will quickly close under the action of the shock wave overpressure, blocking the ventilation holes and preventing the shock wave from entering the project. After the shock wave, the pendulum plate can automatically reset to a normal state. In addition, in order to control the opening angle of the pendulum plate, a limit seat is set on the bottom plate. Usually, the opening angle of the pendulum plate is less than fifteen degrees.

[0004] However, it still has the following disadvantages in actual use:

[0005] The existing swing-type explosion-proof valve, during use, filters the gas entering the room from the outside through the filter assembly arranged inside the through slot, thereby improving the sanitation level of the gas entering the room, thereby facilitating people to live better indoors. However, multiple bolts are required to lock the position of the filter assembly, which increases the steps of disassembling and assembling the filter assembly, causing inconvenience to the later disassembly, cleaning and replacement of the filter assembly.

[0006] 2. In the use of the existing swing-type explosion-proof valve, the swing-type valve automatically closes when it is subjected to a shock wave, thereby preventing the shock wave from entering the room and causing adverse effects. After the shock wave subsides, the swing-type valve automatically opens, and the opening angle of the swing-type valve is limited by the limit plate. However, it is not convenient to buffer the speed of the swing-type valve during the opening and closing process, and it is not convenient to buffer the impact force of the swing-type valve, door frame and limit plate, thereby reducing the protection of the swing-type valve, door frame and limit plate, and reducing the stability of the existing swing-type explosion-proof valve after installation.

[0007] To this end, we provide a suspended swing-type explosion-proof wave valve to solve the above-mentioned problems. Utility Model Content

[0008] The utility model aims to provide a swing-type explosion-proof wave valve, which solves the problems of inconvenient disassembly and assembly of the filter plate and poor anti-collision effect of the existing swing-type explosion-proof wave valve by arranging a filter assembly and a swing-type valve assembly.

[0009] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0010] The utility model is a suspended swing type explosion-proof wave valve, comprising a door frame, a through slot is provided on the side wall of the door frame, a filter assembly is provided inside the through slot, a filter plate in the filter assembly is provided inside the through slot, a plug rod is connected to the side wall of a movable frame provided on the side wall of the filter plate, the plug rod is plugged with a plug hole provided on the inner side wall of the through slot, a through hole is provided on the side wall of a slider fixed to the inner side wall of the movable frame, a guide rod is connected to the inner side wall of a slide slot provided at a corner of the side wall of the filter plate, the slider is sleeved on the peripheral side wall of the guide rod, a reset spring sleeved on the peripheral side wall of the guide rod The end of the spring is connected to the side wall of the slider; a swing valve assembly is provided on the outer wall of the door frame, and the swing hinge door in the swing valve assembly is hinged to the outer wall of the door frame through a hinge, and a connecting rod is hinged on the inner wall of the swing hinge door through a hinge, and a connecting tube is sleeved on the peripheral side wall of the connecting rod, and the end of the connecting tube is hinged to the inner bottom of the through groove through a hinge, and the upper end of the telescopic spring sleeved on the peripheral side wall of the connecting tube is sleeved on the peripheral side wall of the connecting rod, and a damper is connected to the inside of the accommodating groove opened on the outer wall of the door frame, and a shock-absorbing spring is sleeved on the peripheral side wall of the damper.

[0011] The utility model is further configured that the groove handle is away from the insertion rod and the movable frame is U-shaped and the groove handle is rectangular.

[0012] The utility model is further configured such that the sliding block is T-shaped, the sliding groove is T-shaped, and the outer diameter of the reset spring is smaller than the inner diameter of the through hole.

[0013] The utility model is further configured such that a limiting plate connected inside the through groove contacts the filter plate, and the limiting plate is in a U-shaped shape.

[0014] The utility model is further configured that a through hole is opened at the upper end of the connecting tube, a guide groove is opened on the inner peripheral side wall of the through hole, a sliding rod is connected to the peripheral side wall of the connecting rod, and the sliding rod is slidably connected to the guide groove.

[0015] The utility model is further configured that the protrusion fixed to the lower end of the connecting rod is movably arranged inside the connecting tube, and the outer diameter of the protrusion is larger than the inner diameter of the through hole.

[0016] The utility model is further configured that a placement component is arranged on the outer side of the door frame, and the placement component includes a base plate sleeved on the outer side of the door frame, a hinge is connected to the side wall of the base plate, and a door handle connected to the side wall of the base plate is away from the hinge.

[0017] The utility model is further configured that the bottom plate is in a U-shape, the thickness of the bottom plate is one third of the thickness of the door frame, and an anti-slip sleeve is sleeved on the peripheral side wall of the door handle.

[0018] The utility model has the following beneficial effects:

[0019] The utility model provides a filter assembly, applies opposite external forces to the two movable frames, and the reset spring is extended and retracted, so that the two movable frames move toward each other, the insertion rod is moved out of the insertion hole, and the position restriction of the filter plate in the through groove is released, so that the filter plate can be taken out from the through groove; conversely, the filter plate is restricted in the through groove, thereby simplifying the working steps of disassembling and assembling the filter plate, and facilitating the rapid disassembly and assembly of the filter assembly, and facilitating the disassembly, cleaning and replacement of the filter plate.

[0020] The utility model provides a swing-type valve assembly. When the swing-type valve door is affected by a shock wave, the connecting rod moves toward the inside of the connecting tube, the telescopic spring contracts, and the connecting rod, the connecting tube and the swing-type valve door all move in a circular arc with the hinge as a fixed point, thereby realizing automatic closing of the swing-type valve door. The damper and the shock-absorbing spring cooperate to buffer the impact force of the swing-type valve door on the door frame during the closing process, thereby improving the protection effect on the door frame and the swing-type valve door, thereby improving the service life of the swing-type explosion-proof valve and the stability after installation. Conversely, when the shock wave subsides, the telescopic spring gradually stretches to its original state, the connecting rod gradually moves out of the inside of the connecting tube, and the closed swing-type valve door gradually opens.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 A three-dimensional diagram of a suspended swing-type explosion-proof valve Figure 1 ;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 A three-dimensional diagram of a suspended swing-type explosion-proof valve Figure 2 ;

[0026] Figure 4 is a schematic diagram of the structure of the filter component;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 6 It is a structural schematic diagram of the door frame;

[0029] Figure 7 It is an exploded schematic diagram of the connecting rod, the connecting cylinder, the protrusion and the telescopic spring;

[0030] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point C in the middle.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1-door frame, 101-through groove, 101a-limiting plate, 101b-insertion hole, 102-replacing groove, 2-swinging valve assembly, 201-swinging hinged door, 202-connecting tube, 202a-hinge, 202b-guide groove, 202c-through hole, 203-connecting rod, 203a-bump, 203b-slide bar, 204-shock absorbing spring, 204a-damper, 205-telescopic spring, 3-replacing assembly, 301-bottom plate, 302-hinge, 303-door handle, 303a-anti-slip sleeve, 4-filter assembly, 401-filter plate, 401a-slide groove, 402-movable frame, 402a-insertion rod, 402b-groove handle, 403-slider, 403a-through hole, 404-guide rod, 404a-reset spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0034] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the utility model is a pendulum - type explosion - proof flap, including a door frame 1. A through - slot 101 is opened on the side wall of the door frame 1. A filtering component 4 is arranged inside the through - slot 101. The filtering component 4 includes a filter plate 401, a movable frame 402, a plug rod 402a, a slider 403, a guide rod 404 and a return spring 404a. The through - hole 403a applies an external force in the opposite direction to the two movable frames 402, moving the plug rod 402a out of the inside of the jack 101b, releasing the limitation on the position of the filter plate 401; conversely, the filter plate 401 is limited inside the through - slot 101, thereby simplifying the disassembly and assembly steps of the filtering component 4, facilitating the quick disassembly and assembly of the filtering component 4, and facilitating the disassembly, cleaning or replacement of the filter plate 401;

[0035] Specifically, a limiting plate 101a is connected inside the through - slot 101. Jacks 101b are opened on the side wall of the through - slot 101. The filter plate 401 is sleeved inside the through - slot 101 and contacts the limiting plate 101a. A sliding groove 401a is opened at the corner of the side wall of the filter plate 401. The movable frame 402 contacts the side wall of the filter plate 401. A slider 403 is connected to the side wall of the movable frame 402. The slider 403 is slidably connected to the sliding groove 401a. A through - hole 403a is opened on the side wall of the slider 403. A guide rod 404 is connected to the inner side wall of the sliding groove 401a. The guide rod 404 penetrates through the through - hole 403a. A return spring 404a is sleeved on the peripheral side wall of the guide rod 404. The end of the return spring 404a is connected to the side wall of the slider 403. A plug rod 402a is fixedly connected to the side wall of the movable frame 402. The plug rod 402a is inserted into the jack 101b. A groove handle 402b is opened on the side wall of the movable frame 402, and the groove handle 402b is far from the plug rod 402a;

[0036] Furthermore, the limiting plate 101a is in a shape of a double - square frame. There are two groups of jacks 101b, and two jacks 101b in each group are symmetrically arranged. The four sliding grooves 401a are arranged in a rectangular array, and the sliding grooves 401a are in a T - shape. There are two groups of sliders 403, and two sliders 403 in each group are symmetrically arranged. The sliders 403 are in a T - shape. The movable frame 402 is in a U - shape. There are two groups of plug rods 402a, and two plug rods 402a in each group are symmetrically arranged;

[0037] The operation process of this embodiment is as follows: The staff holds the groove handle 402b with both hands and applies an external force in the opposite direction. The slider 403 slides along the sliding groove 401a, the return spring 404a contracts, the two movable frames 402 move towards each other, the plug rod 402a moves out of the inside of the jack 101b. Applying an external force in the direction away from the door frame 1 to the groove handle 402b, the filter plate 401 is taken out from the inside of the through - slot 101; conversely, the filter plate 401 is limited inside the through - slot 101. Embodiment 2

[0038] Please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 On the basis of the specific embodiment 1, a swing valve assembly 2 is provided, which includes a swing hinged door 201, a connecting tube 202, a connecting rod 203, a protrusion 203a, a shock absorbing spring 204, a damper 204a and a telescopic spring 205. The swing hinged door 201 is automatically closed when subjected to a shock wave through the cooperation of the connecting tube 202, the connecting rod 203 and the telescopic spring 205. When the shock wave subsides, the swing hinged door 201 automatically opens. The shock absorbing spring 204 cooperates with the damper 204a to effectively buffer the impact force of the swing hinged door 201 on the door frame 1 when it is closed, thereby protecting the door frame 1 and the swing hinged door 201, thereby improving the service life of the swing hinged door and the stability of the swing hinged door.

[0039] Specifically, the swing hinge door 201 is hinged to the outer wall of the door frame 1 through a hinge 202a, the upper end of the connecting rod 203 is hinged to the inner wall of the swing hinge door 201 through the hinge 202a, the connecting tube 202 is sleeved on the peripheral side wall of the connecting rod 203, and the lower end of the connecting tube 202 is hinged to the inner bottom of the through groove 101 through the hinge 202a, and a telescopic spring 205 is sleeved on the peripheral side wall of the connecting tube 202, and the upper end of the telescopic spring 205 is sleeved on the peripheral side wall of the connecting rod 203, and the protrusion 203a is connected to the connecting rod 203. The lower end of the connecting rod 203 and the protrusion 203a are movably arranged inside the connecting tube 202, the upper end of the connecting tube 202 is provided with a through hole 202c, the inner peripheral side wall of the through hole 202c is provided with a guide groove 202b, the peripheral side wall of the connecting rod 203 is connected with a slide bar 203b, the slide bar 203b is slidably connected with the guide groove 202b, the outer side wall of the door frame 1 is provided with a placement groove 102, the damper 204a is connected inside the placement groove 102, and the peripheral side wall of the damper 204a is sleeved with a shock absorbing spring 204;

[0040] Further, three guide grooves 202b are opened in a circular array, three slide bars 203b are arranged in a circular array, the outer diameter of the protrusion 203a is larger than the inner diameter of the through hole 202c, the lower part of the connecting rod 203 passes through the through hole 202c from the top of the connecting tube 202 and enters the inner cavity of the connecting tube 202, the protrusion 203a enters the inner cavity of the connecting tube 202 from the bottom of the connecting tube 202 and is threadedly connected to the bottom end of the connecting rod 203, at this time, the protrusion 203a is located inside the connecting tube 202;

[0041] The operation process of this embodiment is as follows: when the swing door 201 is impacted by the shock wave, the upper end of the connecting rod 203 and the lower end of the connecting tube 202 both move in an arc with the hinge 202a as a fixed point, and the telescopic spring 205 contracts, and the connecting rod 203 moves into the interior of the connecting tube 202. At the same time, the swing door 201 moves in an arc with the hinge 202a as a fixed point. When the swing door 201 contacts the damper 204a, the damper 204a is engaged. The damping spring 204 works together to buffer the impact of the swinging hinged door 201 on the door frame 1 until the swinging hinged door 201 is fully in contact with the door frame 1, effectively preventing the shock wave from passing through the filter plate 401; when the shock wave subsides, the contracted telescopic spring 205 extends, the connecting rod 203 gradually moves out of the interior of the connecting tube 202, and the swinging hinged door 201 gradually moves away from the door frame 1, that is, the swinging hinged door 201 is opened, and the outside air passes through the filter plate 401 into the room. Example 3

[0042] See also Figure 1 and Figure 3 On the basis of the specific embodiment 1 and the specific embodiment 2, a placement assembly 3 is provided, which includes a bottom plate 301, a hinge 302, a door handle 303 and an anti-slip sleeve 303a. The swing-type explosion-proof valve placed on the indoor wall is opened or closed by the cooperation of the hinge 302 and the door handle 303;

[0043] Specifically, the bottom plate 301 is connected to the outside of the door frame 1, the door handle 303 is connected to the side wall of the bottom plate 301, and the side wall of the door handle 303 is sleeved with an anti-slip sleeve 303a, the hinge 302 is connected to the side wall of the bottom plate 301, and the hinge 302 is away from the door handle 303;

[0044] Furthermore, the hinges 302 are arranged at equal intervals, the bottom plate 301 is in a U-shape, and the thickness of the door frame 1 is three times the thickness of the bottom plate 301;

[0045] The operation process of this embodiment is as follows: the staff uses bolts to lock the hinge 302 to the indoor wall and locks the bottom plate 301 to the indoor wall to complete the installation of the swing-type explosion-proof valve; when the staff opens the door lock on the swing-type explosion-proof valve, an external force is applied to the door handle 303, and the door handle 303 moves in an arc with the hinge 302 as a fixed point to realize the opening or closing of the swing-type explosion-proof valve.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A swing-type explosion-proof valve, comprising a door frame (1), wherein a through slot (101) is provided on a side wall of the door frame (1), characterized in that: A filter assembly (4) is arranged inside the through groove (101), a filter plate (401) in the filter assembly (4) is arranged inside the through groove (101), a plug rod (402a) is connected to the side wall of a movable frame (402) arranged on the side wall of the filter plate (401), the plug rod (402a) is plugged into a plug hole (101b) provided on the inner side wall of the through groove (101), a through hole (403a) is provided on the side wall of a slider (403) fixed to the inner side wall of the movable frame (402), a guide rod (404) is connected to the inner side wall of a slide groove (401a) provided at a corner of the side wall of the filter plate (401), the slider (403) is sleeved on the peripheral side wall of the guide rod (404), and the end of a return spring (404a) sleeved on the peripheral side wall of the guide rod (404) is connected to the side wall of the slider (403); A swing valve assembly (2) is provided on the outer side wall of the door frame (1); a swing hinge door (201) in the swing hinge door assembly (2) is hinged to the outer side wall of the door frame (1) via a hinge (202a); a connecting rod (203) is hinged to the inner side wall of the swing hinge door (201) via a hinge (202a); a connecting tube (202) is sleeved on the peripheral side wall of the connecting rod (203); and the connecting tube (202) is provided on the inner side wall of the swing hinge door (201). The end of the door frame (1) is hinged to the inner bottom of the through groove (101) through a hinge (202a); the upper end of the telescopic spring (205) sleeved on the peripheral side wall of the connecting tube (202) is sleeved on the peripheral side wall of the connecting rod (203); the interior of the placement groove (102) opened on the outer side wall of the door frame (1) is connected to a damper (204a); and the peripheral side wall of the damper (204a) is sleeved with a shock-absorbing spring (204).

2. The swing-type explosion-proof valve according to claim 1 is characterized in that: The groove handle (402b) provided on the side wall of the movable frame (402) is away from the insertion rod (402a); the movable frame (402) is U-shaped; and the groove handle (402b) is rectangular.

3. The swing-type explosion-proof valve according to claim 1 is characterized in that: The sliding block (403) is T-shaped, the sliding groove (401a) is T-shaped, and the outer diameter of the return spring (404a) is smaller than the inner diameter of the through hole (403a).

4. The swing-type explosion-proof valve according to claim 1 is characterized in that: The limiting plate (101a) connected inside the through groove (101) contacts the filter plate (401), and the limiting plate (101a) is in the shape of a U-shaped letter "H".

5. The swing-type explosion-proof valve according to claim 1 is characterized in that: A through hole (202c) is provided at the upper end of the connecting tube (202), a guide groove (202b) is provided on the inner peripheral side wall of the through hole (202c), a sliding rod (203b) is connected to the peripheral side wall of the connecting rod (203), and the sliding rod (203b) is slidably connected to the guide groove (202b).

6. The swing-type explosion-proof valve according to claim 5 is characterized in that: The protrusion (203a) fixedly connected to the lower end of the connecting rod (203) is movably arranged inside the connecting tube (202), and the outer diameter of the protrusion (203a) is larger than the inner diameter of the through hole (202c).

7. The swing-type explosion-proof valve according to claim 1 is characterized in that: The outer side of the door frame (1) is provided with a placement assembly (3), the placement assembly (3) comprising a bottom plate (301) sleeved on the outer side of the door frame (1), a hinge (302) being connected to the side wall of the bottom plate (301), and a door handle (303) connected to the side wall of the bottom plate (301) being away from the hinge (302).

8. The swing-type explosion-proof valve according to claim 7 is characterized in that: The bottom plate (301) is in the shape of a Chinese character "Yu". The thickness of the bottom plate (301) is one third of the thickness of the door frame (1). An anti-slip sleeve (303a) is sleeved on the peripheral side wall of the door handle (303).

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