Anti-poison channel structure for civil air defense engineering

Abstract

The utility model belongs to the field of civil air defense engineering, and discloses a civil air defense engineering gas defense channel structure which comprises a suction device used for pushing airflow to flow and further comprises an air bellow device used for moving up and down along the side wall of a channel, and an outer cover device used for being matched with the side wall of the channel for protection is arranged on the outer side of the air bellow device. The suction device is arranged in the air bellow device, the air bellow device comprises a box body assembly, a lifting assembly is arranged behind the box body assembly, and an exhaust pipe is installed at one end of the box body assembly; the outer cover device comprises a fixing frame, a protective net cover is rotationally installed at one end of the fixing frame, and two lock catches are symmetrically installed on the protective net cover. According to the gas defense channel structure of the civil air defense project, through the arrangement of moving up and down along the side wall of the channel, the height range for adjusting sucked air is enlarged, and the gas defense comprehensiveness of the channel is guaranteed; through the arrangement of sucking gas flow close to the bottom of the channel, suction of poison gas with large specific gravity such as carbon dioxide is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of civil air defense engineering, in particular to a poison-proof passage structure of civil air defense engineering. Background Art

[0002] Civil air defense passages are primarily underground protective structures built during wartime to provide shelter for personnel and supplies, civil air defense command, and medical assistance. They are crucial facilities for responding to war or other emergencies, protecting lives and property. Anti-poison passages in civil air defense projects rely on ventilation and overpressure exhaust to ensure safe passage in the event of outdoor contamination.

[0003] In contrast, the Chinese patent with announcement number CN218010676U discloses a gas-proof channel structure for civil air defense projects, including a channel body, a mounting plate installed on the top of the inner cavity of the channel body, a lifting assembly installed on the bottom of the mounting plate, a box installed on the end of the lifting assembly away from the mounting plate, an air intake pipe extending into the box body is rotatably connected to one end of the bottom of the box body, a suction head is installed on one end of the air intake pipe, a HEPA filter is installed on one side of the inner cavity of the box body, an activated carbon filter is installed on the other side of the inner cavity of the box body, and a vertical plate is installed between the activated carbon filter and the HEPA filter. The HEPA filter can filter out microorganisms such as dust and bacteria contained in the gas, and the activated carbon filter can adsorb harmful substances such as carbon monoxide and formaldehyde contained in the gas, so that the toxic gas can be filtered and purified before being discharged, and the direct emission of gas to avoid environmental pollution.

[0004] However, the above patent can only suck the air near the top of the channel. It is difficult to suck out toxic gases with high specific gravity such as carbon dioxide that sink close to the ground. This greatly limits the height range of the sucked air and cannot ensure the comprehensiveness of the channel's anti-toxicity. Therefore, a new device must be designed. Utility Model Content

[0005] The purpose of the present invention is to provide a poison-proof passage structure for civil air defense projects to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A poison-proof channel structure for civil air defense projects, including a suction device for promoting airflow, and a bellows device for moving up and down along the side walls of the channel, an outer cover device for cooperating with the side walls of the channel for protection is provided on the outside of the bellows device, and the suction device is provided inside the bellows device; the bellows device includes a box assembly, a lifting assembly is provided at the rear of the box assembly, and an exhaust pipe is installed at one end of the box assembly; the outer cover device includes a fixed frame, a protective mesh cover is rotatably installed at one end of the fixed frame, and two lock buckles are symmetrically installed on the protective mesh cover.

[0008] Furthermore: the suction device includes two limit seats arranged in parallel, a HEPA filter and an activated carbon filter are respectively installed in the limit seats, and a power component is provided on one side of the activated carbon filter.

[0009] Furthermore, the power assembly includes a fixing frame, a motor is mounted on the fixing frame, an exhaust fan is mounted on the output end of the motor, and the fixing frame and the limiting seat are respectively welded to the box assembly.

[0010] Furthermore: the box assembly includes a sealed box, a sealing cover is installed in front of the sealed box, and an air intake window is provided at one end of the sealed box away from the exhaust pipe; the lifting assembly includes two symmetrically arranged linear guide rails, the linear guide rails are vertically arranged, and a linear motor is installed on the linear guide rails, and the sealed box and the linear motor are bolted together.

[0011] Furthermore, the sealing box is in a square column shape, and the sealing cover is snap-connected to the sealing box.

[0012] Furthermore: the protective mesh cover is semicircular and is made of 204 stainless steel.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. The setting of moving up and down along the side wall of the channel increases the height range of adjusting the suction air, ensuring the comprehensiveness of the channel anti-virus;

[0015] 2. The suction airflow is set close to the bottom of the channel to ensure the suction of heavy toxic gases such as carbon dioxide;

[0016] 3. The provision of the semicircular arc-shaped protective mesh not only ensures internal protection but also reduces obstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a poison-proof passage structure for a civil air defense project described in the present utility model;

[0018] Figure 2This is a front axonometric drawing of a bellows device of a gas-proof passage structure for a civil air defense project described in the utility model;

[0019] Figure 3 This is a rear axonometric view of a bellows device of a gas-proof passage structure for a civil air defense project described in the utility model;

[0020] Figure 4 This is a schematic diagram of a suction device for a gas-proof passage structure of a civil air defense project described in the present invention;

[0021] Figure 5 It is a schematic diagram of an outer cover device of a gas-proof passage structure of a civil air defense project described in the present invention.

[0022] In the accompanying drawings: 1. Channel side wall; 201. Sealing box; 202. Sealing cover; 203. Air inlet window; 204. Exhaust pipe; 205. Linear guide rail; 206. Linear motor; 301. Limit seat; 302. HEPA filter; 303. Activated carbon filter; 304. Fixing frame; 305. Motor; 306. Exhaust fan; 401. Fixing frame; 402. Protective mesh cover; 403. Lock. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 A gas-proof channel structure for civil air defense projects includes a suction device for promoting airflow, and a bellows device for moving up and down along the channel side wall 1. An outer cover device for cooperating with the channel side wall 1 for protection is provided on the outside of the bellows device, and the suction device is provided inside the bellows device.

[0025] In this embodiment: the bellows device includes a box assembly, a lifting assembly is provided at the rear of the box assembly, and an exhaust pipe 204 is installed at one end of the box assembly; the box assembly includes a sealed box 201, a sealing cover 202 is installed in front of the sealed box 201, and an air intake window 203 is provided at one end of the sealed box 201 away from the exhaust pipe 204; the lifting assembly includes two symmetrically arranged linear guide rails 205, the linear guide rails 205 are vertically arranged, and a linear motor 206 is installed on the linear guide rails 205, and the sealed box 201 and the linear motor 206 are bolted together; the sealed box 201 is square cylindrical, and the sealing cover 202 and the sealed box 201 are snap-connected; the sealing cover 202 is used to close the sealed box 201 and protect the internal structure. The air enters the sealed box 201 from the air intake window 203 and is discharged from the exhaust pipe 204. At the same time, the channel side wall 1 supports the linear guide rail 205, and the linear motor 206 drives the sealed box 201 to move up and down along the linear guide rail 205 to adjust the height of the sucked air to ensure the comprehensiveness of the channel anti-toxicity;

[0026] In this embodiment, the suction device includes two limit seats 301 arranged in parallel, each of which is equipped with a HEPA filter 302 and an activated carbon filter 303. A power assembly is provided on one side of the activated carbon filter 303. The power assembly includes a fixing frame 304, on which a motor 305 is mounted. An exhaust fan 306 is mounted at the output end of the motor 305. The fixing frame 304 and the limit seat 301 are respectively welded to the box assembly. The fixing frame 304 supports the motor 305 to drive the exhaust fan 306 to work, thereby promoting the flow of air. The HEPA filter 302 positioned by the limit seat 301 in turn filters dust and microorganisms such as bacteria in the airflow, and the activated carbon filter 303 absorbs harmful substances such as carbon oxides and formaldehyde in the airflow.

[0027] In this embodiment: the outer cover device includes a fixed frame 401, and a protective mesh cover 402 is rotatably installed at one end of the fixed frame 401. Two lock buckles 403 are symmetrically installed on the protective mesh cover 402; the protective mesh cover 402 is semicircular and made of 204 stainless steel; the protective mesh cover 402 covers the entire stroke of the sealing box 201 to prevent damage caused by contact. Open the lock buckle 403 and open the protective mesh cover 402 for maintenance under the support of the fixed frame 401.

[0028] Working principle: During operation, the fixed frame 304 supports the motor 305 to drive the exhaust fan 306, so that the air flow enters the sealed box 201 from the air inlet window 203, and passes through the HEPA filter 302 positioned by the limit seat 301 in turn to filter dust, bacteria and other microorganisms in the air flow. The activated carbon filter 303 adsorbs harmful substances such as carbon oxides and formaldehyde in the air flow, and finally discharges them from the exhaust pipe 204. At the same time, the channel side wall 1 supports the linear guide 205, and the linear motor 206 drives the sealed box 201 to move up and down along the linear guide 205 to adjust the height of the sucked air to ensure the comprehensiveness of the channel anti-virus. The protective mesh cover 402 covers the entire stroke of the sealed box 201 to avoid damage caused by touch. When maintenance or replacement is required, open the lock 403, and open the protective mesh cover 402 with the support of the fixed frame 401. Open the sealing cover 202, and you can maintain or replace the HEPA filter 302, activated carbon filter 303 and motor 305 inside the sealed box 201.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas-proof passage structure for civil air defense engineering, comprising a suction device for promoting airflow, characterized in that: It also includes a bellows device for moving up and down along the channel side wall (1), an outer cover device for cooperating with the channel side wall (1) for protection is provided on the outside of the bellows device, and the suction device is provided inside the bellows device; The bellows device comprises a box assembly, a lifting assembly is arranged at the rear of the box assembly, and an exhaust pipe (204) is installed at one end of the box assembly; The outer cover device comprises a fixing frame (401), one end of which is rotatably mounted with a protective net cover (402), and two lock buckles (403) are symmetrically mounted on the protective net cover (402).

2. The anti-poison passage structure for civil air defense projects according to claim 1, characterized in that: The suction device comprises two limiting seats (301) arranged in parallel, wherein a HEPA filter (302) and an activated carbon filter (303) are respectively installed in the limiting seats (301), and a power component is arranged on one side of the activated carbon filter (303).

3. The anti-poison passage structure for civil air defense projects according to claim 2, characterized in that: The power assembly comprises a fixing frame (304), a motor (305) is mounted on the fixing frame (304), an exhaust fan (306) is mounted at the output end of the motor (305), and the fixing frame (304) and the limiting seat (301) are respectively welded to the box assembly.

4. The anti-poison passage structure for civil air defense projects according to claim 1, characterized in that: The box assembly comprises a sealed box (201), a sealed cover (202) is installed in front of the sealed box (201), and an air intake window (203) is provided at one end of the sealed box (201) away from the exhaust pipe (204); the lifting assembly comprises two symmetrically arranged linear guide rails (205), the linear guide rails (205) are arranged vertically, a linear motor (206) is installed on the linear guide rails (205), and the sealed box (201) and the linear motor (206) are bolted together.

5. The anti-poison passage structure for civil air defense projects according to claim 4, characterized in that: The sealing box (201) is in the shape of a square column, and the sealing cover (202) and the sealing box (201) are snap-connected.

6. The anti-poison passage structure for civil air defense projects according to claim 1, characterized in that: The protective mesh cover (402) is semicircular and made of 204 stainless steel.

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