Air inlet device for civil air defense engineering

Abstract

The utility model discloses a civil air defence engineering air inlet device, specifically relates to civil air defence engineering technical field, including the casing, the both sides of casing are established with air inlet and air outlet respectively, when the pollutant attached to the surface of filter screen gradually increases, influences ventilation efficiency, can clean filter screen in time, and the motor is started and carries out positive and negative rotation, and then drives screw rod positive and negative rotation, and then drives the up and down movement of connecting block, drives the telescopic corrugated protective cover of both ends, simultaneously drives hollow board and clean brush close filter screen surface, cleans filter screen in the movement, and water source is sent into hollow board through the water source of connecting pipe external connection, and then is sprayed through the spray head, and the filter screen is washed, and the cleaning effect is further improved, and the efficient filtering performance of filter screen is maintained, if filter screen uses time too long, still can not satisfy the filtration requirement after cleaning, can carry out disassembly replacement, can also clean clean brush after filter screen dismounts, and the subsequent cleaning effect of clean brush is maintained.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, specifically to a civil defense engineering air intake device. Background Technology

[0002] As vital underground facilities for providing shelter for personnel, storing supplies, and maintaining the basic operation of cities during wartime, the air quality inside civil defense projects directly affects the health and safety of personnel and the normal operation of the projects. Air intake devices, as a core component of the air circulation system of civil defense projects, bear the crucial responsibility of introducing fresh outside air and filtering pollutants, and are the fundamental guarantee for ensuring air quality within civil defense projects.

[0003] Chinese patent CN202322317003.5 discloses a filter absorber for civil defense engineering. By setting an adjustment structure, the filter screen inside the filter absorber body can be replaced or repaired and cleaned, so as to improve the filtration and exhaust effect of the filter absorber body and thus improve the working efficiency of the filter absorber body.

[0004] However, although the filter screen of the civil defense project mentioned in the above scheme can be opened and disassembled from the side, frequent disassembly and assembly can easily cause wear and deformation of the connecting parts, resulting in a decrease in sealing performance. Furthermore, cleaning the filter screen requires disassembly every time, making it difficult to clean in a timely manner, ultimately affecting the overall protective performance of the filter and the safety of the internal environment of the project.

[0005] Therefore, it is necessary to invent a ventilation device for civil defense projects. Utility Model Content

[0006] The purpose of this utility model is to provide an air intake device for civil defense projects to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a civil defense engineering air intake device, comprising a housing, with an air inlet and an air outlet respectively opened on both sides of the housing, a detachable rectangular frame inside the housing, a rubber block fixedly mounted on the top of the rectangular frame, the rubber block penetrating the top of the housing and having a horizontal plate fixedly mounted at its end, a filter screen detachably mounted between the two side walls of the rectangular frame, a threaded rod rotatably mounted between the two side walls of the rectangular frame, a connecting block threadedly mounted on the outer wall of the threaded rod, corrugated protective covers fixedly mounted at both ends of the connecting block, the two ends of the corrugated protective covers being fixedly connected to the top and bottom inner walls of the rectangular frame respectively, the connecting block penetrating the corrugated protective covers and having a hollow plate fixedly mounted at its end, the hollow plate being slidably connected to the inner wall of the rectangular frame, multiple nozzles communicating on one side of the hollow plate, and a cleaning brush fixedly mounted at the bottom of the hollow plate.

[0008] Preferably, a connecting pipe is provided at the top of the hollow plate, and the connecting pipe passes through the rubber block and the cross plate.

[0009] Preferably, a motor is fixedly mounted on the top of the horizontal plate, and the threaded rod passes through the rectangular frame, the rubber block and the horizontal plate and is fixedly connected to the output shaft of the motor.

[0010] Preferably, a slider is fixedly provided on one side of the hollow plate, and a sliding groove is provided on both sides of the rectangular frame. The slider and the connecting block are slidably installed in the two sliding grooves respectively.

[0011] Preferably, the top of the housing has a through groove, and the rubber block is movably engaged in the through groove.

[0012] Preferably, a circular groove is formed on the inner wall of the bottom of the housing, a rubber column is movably inserted into the circular groove, a sealing cap is fixedly provided at the bottom end of the rubber column, and a triangular block is fixedly provided on the inner wall of the bottom of the housing.

[0013] Preferably, a second fixing block is fixedly provided at the bottom of the housing, and a second screw is threadedly inserted into one side of the second fixing block, and the second screw is movably inserted into the sealing cover.

[0014] Preferably, the top of the housing is fixedly provided with symmetrically distributed fixing blocks, and a screw is threaded into one side of the fixing block, the screw being movably inserted into the cross plate.

[0015] Preferably, vertical rods are fixedly provided on both sides of the filter screen, and grooves are provided on both sides of the rectangular frame. The vertical rods are slidably installed in the grooves, and screws are threaded into both sides of the rectangular frame. The screws are movably inserted into the vertical rods.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. When the pollutants attached to the filter screen gradually increase and affect the ventilation efficiency, the filter screen can be cleaned in time. Start the motor to rotate forward and backward, which in turn drives the threaded rod to rotate forward and backward, which in turn drives the connecting block to move up and down, and drives the corrugated protective covers at both ends to extend and retract. At the same time, it drives the hollow plate and the cleaning brush to press against the filter screen surface, cleaning the filter screen during the movement. Water is sent into the hollow plate through the connecting pipe and then sprayed out through the nozzle to rinse the filter screen, further improving the cleaning effect and maintaining the high-efficiency filtration performance of the filter screen;

[0018] 2. If the filter screen has been used for too long and still cannot meet the filtration requirements after cleaning, it can be disassembled and replaced. After the filter screen is removed, the cleaning brush can also be cleaned to maintain the cleaning effect of the cleaning brush. Attached Figure Description

[0019] Figure 1A schematic diagram of the overall structure of this utility model;

[0020] Figure 2 A schematic diagram of the rectangular frame structure provided by this utility model;

[0021] Figure 3 A schematic diagram of the air outlet structure provided by this utility model;

[0022] Figure 4 A schematic diagram of the hollow plate structure provided by this utility model;

[0023] Figure 5 A schematic diagram of the filter structure provided by this utility model;

[0024] Figure 6 A schematic diagram of the nozzle structure provided by this utility model;

[0025] Figure 7 Provided by this utility model Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Housing; 11. Air inlet; 12. Air outlet; 13. Fixing block one; 14. Screw one; 16. Through groove; 17. Sealing cover; 171. Rubber column; 172. Circular groove; 18. Triangular block; 19. Fixing block two; 191. Screw two; 21. Horizontal plate; 22. Motor; 24. Rubber block; 25. Rectangular frame; 251. Filter screen; 252. Vertical rod; 253. Screw three; 254. Groove; 27. Threaded rod; 271. Connecting block; 28. Corrugated protective cover; 29. ​​Hollow plate; 291. Connecting pipe; 292. Nozzle; 293. Cleaning brush; 295. Slider. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Figures 1-7As shown, this utility model provides an air intake device for civil defense engineering, including a housing 1. An air inlet 11 and an air outlet 12 are respectively opened on both sides of the housing 1. A rectangular frame 25 is detachably installed inside the housing 1. A rubber block 24 is fixedly installed on the top of the rectangular frame 25. The rubber block 24 penetrates the top of the housing 1 and a horizontal plate 21 is fixedly installed at its end. A filter screen 251 is detachably installed between the two side walls of the rectangular frame 25. A threaded rod 27 is rotatably installed between the two side walls of the rectangular frame 25. The outer wall of the threaded rod 27 is threaded with a... The connecting block 271 has corrugated protective covers 28 fixedly installed at both its upper and lower ends. The two ends of the corrugated protective covers 28 are fixedly connected to the top and bottom inner walls of the rectangular frame 25, respectively. The connecting block 271 passes through the corrugated protective covers 28 and has a hollow plate 29 fixedly installed at its end. The hollow plate 29 is slidably connected to the inner wall of the rectangular frame 25. Multiple nozzles 292 are provided on one side of the hollow plate 29. A cleaning brush 293 is fixedly installed at the bottom of the hollow plate 29. The corrugated protective covers 28 are telescopic and tightly enclose the threaded rod 27. Dust and impurities carried by the outside air cannot come into contact with the threaded rod 27, thereby preventing dust from falling on its surface and avoiding affecting the movement of the connecting block 271.

[0029] Furthermore, a connecting pipe 291 is provided at the top of the hollow plate 29, and the connecting pipe 291 passes through the rubber block 24 and the horizontal plate 21.

[0030] Furthermore, a motor 22 is fixedly mounted on the top of the horizontal plate 21, and the threaded rod 27 passes through the rectangular frame 25, the rubber block 24 and the horizontal plate 21 and is fixedly connected to the output shaft of the motor 22.

[0031] Furthermore, a slider 295 is fixedly provided on one side of the hollow plate 29, and a sliding groove is provided on both sides of the rectangular frame 25. The slider 295 and the connecting block 271 are slidably installed in the two sliding grooves respectively.

[0032] Furthermore, a through groove 16 is provided on the top of the housing 1, and the rubber block 24 is movably engaged in the through groove 16 to improve the sealing performance.

[0033] Furthermore, a circular groove 172 is provided on the inner wall of the bottom of the housing 1, a rubber column 171 is movably inserted into the circular groove 172, a sealing cap 17 is fixedly provided at the bottom end of the rubber column 171, and a triangular block 18 is fixedly provided on the inner wall of the bottom of the housing 1.

[0034] Furthermore, a fixing block 19 is fixedly provided at the bottom of the housing 1, and a screw 191 is threaded into one side of the fixing block 19. The screw 191 is movably inserted into the sealing cover 17.

[0035] Furthermore, the top of the housing 1 is fixedly provided with symmetrically distributed fixing blocks 13, and one side of the fixing block 13 is threaded with a screw 14, which is movably inserted into the horizontal plate 21.

[0036] Furthermore, vertical rods 252 are fixedly provided on both sides of the filter screen 251, and grooves 254 are provided on both sides of the rectangular frame 25. The vertical rods 252 are slidably installed in the grooves 254. Screws 253 are threaded into both sides of the rectangular frame 25, and the screws 253 are movably inserted into the vertical rods 252.

[0037] Working principle: When in use, the air inlet 11 of the housing 1 is connected to the louvers, and the air outlet 12 of the housing 1 is connected to the negative pressure fan. After the negative pressure fan is started, a negative pressure environment is formed in the device, which draws in external air through the louvers and forces it to the underground civil defense project through the housing 1, realizing the directional and forced flow of air, and continuously replenishing the interior of the project with fresh air. The airflow is filtered by the filter screen 251, and the dust is filtered by the filter screen 251, thereby achieving the purpose of purifying the air.

[0038] When the pollutants attached to the surface of the filter screen 251 gradually increase and affect the ventilation efficiency, the motor 22 can be started to rotate forward and backward, which in turn drives the threaded rod 27 to rotate forward and backward, which in turn drives the connecting block 271 to move up and down, drives the corrugated protective cover 28 at both ends to extend and retract, and at the same time drives the hollow plate 29 to move up and down. The cleaning brush 293 on one side of the hollow plate 29 is in close contact with the surface of the filter screen 251. During the movement, the brush brushes the filter screen 251 to sweep away the dust and impurities. Water is sent into the hollow plate 29 through the connecting pipe 291 and then sprayed out through the nozzle 292 to rinse the filter screen 251, further improving the cleaning effect and maintaining the high-efficiency filtration performance of the filter screen 251.

[0039] Dust and wastewater generated by the cleaning brush 293 and the spray nozzle 292 fall into the bottom of the housing 1. The rubber column 171 and the sealing cover 17 in the circular groove 172 on the bottom inner wall are used to seal the dust collection area. When cleaning, unscrew the screw 191 on one side of the fixing block 19 and open the sealing cover 17 to discharge the accumulated pollutants. After cleaning, reinstall the sealing cover 17 and tighten the screw to ensure the device is sealed.

[0040] If the filter 251 has been used for too long and still cannot meet the filtration requirements after cleaning, it can be disassembled and replaced. Unscrew screw 14 from inside the horizontal plate 21, and then pull the horizontal plate 21 and rectangular frame 25 out from the top of the housing 1. Unscrew screws 253 on both sides of the rectangular frame 25 to pull the vertical rod 252 out of the groove 254, and then remove the filter 251 for replacement. After the filter 251 is removed, the cleaning brush 293 can also be cleaned to maintain the subsequent cleaning effect of the cleaning brush 293.

[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for civil defense engineering, comprising a housing (1), characterized in that: The housing (1) has an air inlet (11) and an air outlet (12) on its two sides respectively. A rectangular frame (25) is detachably provided inside the housing (1). A rubber block (24) is fixedly provided on the top of the rectangular frame (25). The rubber block (24) passes through the top of the housing (1) and a horizontal plate (21) is fixedly provided at its end. A filter screen (251) is detachably provided between the two side walls of the rectangular frame (25). A threaded rod (27) is rotatably provided between the two side walls of the rectangular frame (25). A connecting block is threaded on the outer wall of the threaded rod (27). 271), both the upper and lower ends of the connecting block (271) are fixedly provided with corrugated protective covers (28), and the two ends of the corrugated protective covers (28) are respectively fixedly connected to the top and bottom inner walls of the rectangular frame (25). The connecting block (271) passes through the corrugated protective cover (28) and a hollow plate (29) is fixedly provided at its end. The hollow plate (29) is slidably connected to the inner wall of the rectangular frame (25). Multiple nozzles (292) are provided on one side of the hollow plate (29). A cleaning brush (293) is fixedly provided at the bottom of the hollow plate (29).

2. The air intake device for civil defense engineering according to claim 1, characterized in that: The top of the hollow plate (29) is provided with a connecting pipe (291), which passes through the rubber block (24) and the horizontal plate (21).

3. The air intake device for civil defense engineering according to claim 1, characterized in that: The top of the horizontal plate (21) is fixedly equipped with a motor (22), and the threaded rod (27) passes through the rectangular frame (25), the rubber block (24) and the horizontal plate (21) and is fixedly connected to the output shaft of the motor (22).

4. The air intake device for civil defense engineering according to claim 1, characterized in that: A slider (295) is fixedly provided on one side of the hollow plate (29), and a sliding groove is provided on both sides of the rectangular frame (25). The slider (295) and the connecting block (271) are respectively slidably installed in the two sliding grooves.

5. The air intake device for civil defense engineering according to claim 1, characterized in that: The top of the housing (1) is provided with a through groove (16), and the rubber block (24) is movably locked in the through groove (16).

6. The air intake device for civil defense engineering according to claim 1, characterized in that: The bottom inner wall of the housing (1) is provided with a circular groove (172), a rubber column (171) is movably inserted in the circular groove (172), a sealing cap (17) is fixedly provided at the bottom end of the rubber column (171), and a triangular block (18) is fixedly provided on the bottom inner wall of the housing (1).

7. The air intake device for civil defense engineering according to claim 6, characterized in that: The bottom of the housing (1) is fixedly provided with a second fixing block (19), and a second screw (191) is threaded into one side of the second fixing block (19), and the second screw (191) is movably inserted into the sealing cover (17).

8. The air intake device for civil defense engineering according to claim 1, characterized in that: The top of the housing (1) is fixed with symmetrically distributed fixing blocks (13), and a screw (14) is threaded into one side of the fixing block (13). The screw (14) is movably inserted into the horizontal plate (21).

9. The air intake device for civil defense engineering according to claim 1, characterized in that: The filter screen (251) is fixedly provided with vertical rods (252) on both sides. The rectangular frame (25) is provided with grooves (254) on both sides. The vertical rods (252) are slidably installed in the grooves (254). The rectangular frame (25) is threaded with screws (253) on both sides. The screws (253) are movably inserted into the vertical rods (252).

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