Energy-saving air circulation device for civil air defense

By designing a combined structure of a rotating air intake pipe and a compressed air outlet chamber, the blind spot problem of the air circulation device was solved, achieving full-coverage purification and accelerated air replacement, thus improving the air circulation effect of civil defense projects.

CN224302268UActive Publication Date: 2026-05-29ANHUI CIVIL AIR DEFENSE ARCHITECTURE DESIGN & RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI CIVIL AIR DEFENSE ARCHITECTURE DESIGN & RES INST
Filing Date
2025-07-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing air circulation devices in civil defense projects have blind spots in air circulation, leading to the accumulation of toxic and harmful gases and insufficient oxygen in some areas.

Method used

An energy-saving air circulation device for civil defense was designed. Through a rotating air inlet pipe and a compressed air outlet structure, the device ensures the comprehensiveness and efficiency of air circulation. The combination of components such as the movable chamber, air inlet pipe, fan, motor, rotating shaft, baffle plate and air outlet chamber achieves full coverage purification and accelerated exhaust of air.

Benefits of technology

It effectively avoids blind spots in air circulation, improves air flow speed and purification efficiency, ensures uniform air circulation and quality inside civil defense projects, and protects personnel safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224302268U_ABST
    Figure CN224302268U_ABST
Patent Text Reader

Abstract

The utility model provides an energy -saving civil air defence air circulation device belongs to civil air defence engineering field, including solution storehouse and bottom disc, the bottom disc fixed connection is in the bottom of solution storehouse, the surface of solution storehouse is provided with air inlet subassembly, the surface of air inlet subassembly is provided with air outlet subassembly, air inlet subassembly includes movable bin, air inlet pipe, filter plate, fan, contraction pipe, motor, pivot, resist plate no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering, and more specifically, to an energy-saving civil defense air circulation device. Background Technology

[0002] Air circulation devices for civil defense are important equipment used in civil defense projects to ensure air circulation and quality. When civil defense projects are in a closed state, such as during wartime or in the event of special disasters, the outside air may be polluted or dangerous. The air circulation device can process and regenerate the internal air through an internal circulation system, continuously providing personnel with the fresh air needed for breathing and ensuring their safety.

[0003] However, existing air circulation devices often experience blind spots due to ineffective air circulation or purification in certain areas, leading to the accumulation of toxic and harmful gases, as well as insufficient oxygen and excessive carbon dioxide concentrations. Solving these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an energy-saving air circulation device for civil defense, which aims to solve the problem that existing air circulation devices cannot avoid blind spots during use.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an energy-saving air circulation device for civil defense, including a solution tank and a chassis. The chassis is fixedly connected to the bottom of the solution tank. An air inlet component is provided on the surface of the solution tank, and an air outlet component is provided on the surface of the air inlet component.

[0007] The air intake assembly includes a movable chamber, an air intake pipe, a filter plate, a fan, a contraction pipe, a motor, a rotating shaft, a first abutment plate, a support plate, a first spring push rod, and a second abutment plate. The movable chamber is installed on top of the solution chamber. The air intake pipe is fixedly connected to the surface of the air intake pipe. The filter plate is fixedly connected to the inner wall of the air intake pipe. The fan is installed inside the air intake pipe. The contraction pipe is fixedly connected to one end of the air intake pipe. The motor is fixedly connected to the bottom of the solution chamber. The rotating shaft is installed at the output end of the motor. The first abutment plate is fixedly connected to the top of the rotating shaft. The support plate is fixedly connected to the inner wall of the movable chamber. The first spring push rod is fixedly connected to the bottom of the support plate. The second abutment plate is fixedly connected to the bottom end of the first spring push rod.

[0008] Preferably, the bottom and top of the movable chamber are fixedly connected with retaining rings, the top of the solution chamber has a groove, the retaining ring at the bottom of the movable chamber engages with the groove, and the retaining ring is rotatably connected to the groove, thus the movable chamber is rotatably connected to the solution chamber.

[0009] By adopting the above technical solution, the movable chamber can rotate on top of the solution chamber, and the setting of the retaining ring and groove one can facilitate the operator to install the movable chamber.

[0010] Preferably, the bottom end of the shrink tube extends into the interior of the solution chamber, the rotating shaft passes through the solution chamber and extends above the solution chamber, and the rotating shaft is rotatably connected to the solution chamber.

[0011] By adopting the above technical solution, after the outside air enters the interior of the solution chamber through the air inlet pipe and the constriction pipe, it will mix with the solution inside the solution chamber and purify the air through the solution.

[0012] Preferably, the top of the first abutment is provided with a slot, and the bottom of the second abutment is fixedly connected with a card plate, wherein the slot at the top of the first abutment engages with the card plate at the bottom of the second abutment.

[0013] By adopting the above technical solution, the card plate and the card slot are connected, and the rotating shaft can drive the support plate to rotate through the card plate and the card slot, so that the support plate drives the movable compartment to rotate.

[0014] Preferably, the gas outlet assembly includes a gas outlet chamber, a bent rod, a limiting plate, a second spring push rod, a turntable, a scraper, and a perforated plate. The gas outlet chamber is located at the top of the movable chamber. The bent rod is fixedly connected to the outer wall of the solution chamber. The limiting plate is fixedly connected to the outer wall of the gas outlet chamber. The second spring push rod is fixedly connected to the top of the support plate. The scraper is fixedly connected to the top of the second spring push rod. The perforated plate is fixedly connected to the inner wall of the gas outlet chamber.

[0015] Preferably, the inner diameter of the air inlet of the air outlet chamber is larger than the inner diameter of the air outlet of the air outlet chamber, and the bottom of the air outlet chamber is provided with a second groove. The second groove at the bottom of the air outlet chamber is engaged with the retaining ring at the top of the movable chamber and is rotatably connected with the retaining ring.

[0016] By adopting the above technical solution, when the purified gas is discharged through the gas outlet chamber, it will be compressed by the gas outlet chamber and discharged. The setting of the retaining ring and the second groove can facilitate the operator to position the gas outlet chamber.

[0017] Preferably, a threaded rod is fixedly connected to the top of the bent rod, a nut is provided on the top of the limiting plate and is adapted to the threaded rod, the limiting plate is located on the outer wall of the threaded rod and is slidably connected to the threaded rod.

[0018] By adopting the above technical solution, the connection between the solution chamber and the gas outlet chamber can be completed using a nut and a threaded rod.

[0019] The beneficial effects of this utility model are:

[0020] 1. After the motor starts, the support plate is rotated by the slot at the top of the support plate and the plate at the bottom of the support plate. This causes the support plate to rotate the movable chamber at the top of the solution chamber. At this time, the movable chamber will rotate the air inlet pipe. The fan can then draw all the air around the solution chamber into the air inlet pipe, avoiding blind spots in air circulation and solving the problem of blind spots that cannot be avoided in the use of existing air circulation devices.

[0021] 2. When air enters the air outlet chamber through the perforated plate, the air inside the air outlet chamber is compressed when it is discharged because the inner diameter of the outlet chamber is smaller than the inner diameter of the inlet chamber. The compressed air will accelerate the air flow speed when it is discharged from the air outlet chamber, thereby accelerating the air replacement speed inside the civil defense project and improving the purification efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an energy-saving air circulation device for civil defense provided by an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of an energy-saving air circulation device for civil defense provided by an embodiment of this utility model;

[0025] Figure 3 This is a partial separation diagram of the air intake component structure of an energy-saving civil defense air circulation device provided by an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the bottom structure of the air outlet chamber of an energy-saving air circulation device for civil defense provided by an embodiment of this utility model.

[0027] In the diagram: 1. Solution chamber; 2. Chassis; 3. Air inlet assembly; 301. Movable chamber; 302. Air inlet pipe; 303. Filter plate; 304. Fan; 305. Contraction pipe; 306. Motor; 307. Rotating shaft; 308. Support plate one; 309. Support plate; 310. Spring push rod one; 311. Support plate two; 4. Air outlet assembly; 401. Air outlet chamber; 402. Bend rod; 403. Limiting plate; 404. Spring push rod two; 405. Turntable; 406. Scraper; 407. Perforated plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Reference Figures 1-4 An energy-saving air circulation device for civil defense includes a solution tank 1 and a chassis 2. The chassis 2 is fixedly connected to the bottom of the solution tank 1. An air intake component 3 is provided on the surface of the solution tank 1, and an air outlet component 4 is provided on the surface of the air intake component 3.

[0030] The air intake assembly 3 includes a movable chamber 301, an air intake pipe 302, a filter plate 303, a fan 304, a contraction pipe 305, a motor 306, a rotating shaft 307, a first abutment plate 308, a support plate 309, a first spring push rod 310, and a second abutment plate 311. The movable chamber 301 is installed on top of the solution chamber 1. Both the bottom and top of the movable chamber 301 are fixedly connected with retaining rings. The top of the solution chamber 1 has a groove, and the retaining ring at the bottom of the movable chamber 301 engages with the groove, and the retaining ring is rotatably connected to the groove. 301 is rotatably connected to solution chamber 1. The movable chamber 301 can rotate on top of solution chamber 1. The retaining ring and groove design facilitate installation of the movable chamber 301 by the operator. Air inlet pipe 302 is fixedly connected to the surface of air inlet pipe 302. Filter plate 303 is fixedly connected to the inner wall of air inlet pipe 302. Fan 304 is installed inside air inlet pipe 302. Contraction pipe 305 is fixedly connected to one end of air inlet pipe 302, with its bottom end extending into the interior of solution chamber 1. After ambient air enters the solution chamber 1 through the air inlet pipe 302 and the contraction pipe 305, it mixes with the solution inside the solution chamber 1 and purifies the air through the solution. The motor 306 is fixedly connected to the bottom of the solution chamber 1, and the rotating shaft 307 is installed at the output end of the motor 306. The rotating shaft 307 passes through the solution chamber 1 and extends to the top of the solution chamber 1. The rotating shaft 307 is rotatably connected to the solution chamber 1. The abutment plate 308 is fixedly connected to the top of the rotating shaft 307, and the top of the abutment plate 308 has a slot. The support plate 309 is fixedly connected to the inner wall of the movable chamber 301. The first spring push rod 310 is fixedly connected to the bottom of the support plate 309. The second abutment plate 311 is fixedly connected to the bottom end of the first spring push rod 310. A retaining plate is fixedly connected to the bottom of the second abutment plate 311. The retaining plate and the retaining plate are connected. The rotating shaft 307 can drive the support plate 309 to rotate through the retaining plate and the retaining plate, so that the support plate 309 drives the movable chamber 301 to rotate.

[0031] After the motor 306 starts, the support plate 309 is rotated by the slot at the top of the support plate 308 and the plate at the bottom of the support plate 311. This causes the support plate 309 to rotate the movable chamber 301 at the top of the solution chamber 1. At this time, the movable chamber 301 will drive the air inlet pipe 302 to rotate. Then the fan 304 can draw all the air around the solution chamber 1 into the interior of the air inlet pipe 302 through the air inlet pipe 302, avoiding the blind spot of air circulation and solving the problem that the existing air circulation device cannot avoid the blind spot during use.

[0032] The air outlet assembly 4 includes an air outlet chamber 401, a bent rod 402, a limiting plate 403, a second spring push rod 404, a turntable 405, a scraper 406, and a perforated plate 407. The air outlet chamber 401 is located on top of the movable chamber 301. The inlet diameter of the air outlet chamber 401 is larger than the outlet diameter. When the purified gas is discharged through the air outlet chamber 401, it is compressed by the outlet port of the air outlet chamber 401 before being discharged. A second groove is provided at the bottom of the air outlet chamber 401. The second groove at the bottom of the air outlet chamber 401 engages with a retaining ring at the top of the movable chamber 301 and is rotatably connected with the retaining ring. The design of the retaining ring and the second groove facilitates the operator's operation. The gas outlet chamber 401 is positioned, the bent rod 402 is fixedly connected to the outer wall of the solution chamber 1, and a threaded rod is fixedly connected to the top of the bent rod 402. The top of the limiting plate 403 is provided with a nut, which is adapted to the threaded rod. The limiting plate 403 is located on the outer wall of the threaded rod and is slidably connected to the threaded rod. The connection between the solution chamber 1 and the gas outlet chamber 401 can be completed by the nut and the threaded rod. The limiting plate 403 is fixedly connected to the outer wall of the gas outlet chamber 401. The second spring push rod 404 is fixedly connected to the top of the support plate 309. The scraper 406 is fixedly connected to the top of the second spring push rod 404. The hollow plate 407 is fixedly connected to the inner wall of the gas outlet chamber 401.

[0033] When air enters the interior of the air outlet chamber 401 through the perforated plate 407, the air inside the air outlet chamber 401 is compressed when it is discharged because the inner diameter of the outlet of the air outlet chamber 401 is smaller than the inner diameter of the inlet. The compressed air will accelerate the air flow speed when it is discharged from the air outlet chamber 401, thereby accelerating the air replacement speed inside the civil defense project and improving the purification efficiency.

[0034] The working principle of this energy-saving civil defense air circulation device is as follows: Start the motor 306 and the fan 304. After the motor 306 starts, the rotating shaft 307 and the support plate 309 drive the movable chamber 301 to rotate on the top of the solution chamber 1. The air inlet pipe 302 changes its air extraction range under the action of the movable chamber 301. The fan 304 draws the air in the civil defense project into the air inlet pipe 302 through the filter plate 303 and delivers it to the interior of the solution chamber 1 through the contraction pipe 305. The air is mixed with the solvent inside the solution chamber 1. The air purified by the solvent inside the solution chamber 1 rises under the action of air pressure and is discharged through the perforated plate 407.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy-saving air circulation device for civil defense, comprising a solution tank (1) and a chassis (2), wherein the chassis (2) is fixedly connected to the bottom of the solution tank (1), characterized in that: The surface of the solution tank (1) is provided with an air inlet assembly (3), and the surface of the air inlet assembly (3) is provided with an air outlet assembly (4). The air intake assembly (3) includes a movable chamber (301), an air intake pipe (302), a filter plate (303), a fan (304), a contraction pipe (305), a motor (306), a rotating shaft (307), a first abutment plate (308), a support plate (309), a first spring push rod (310), and a second abutment plate (311). The movable chamber (301) is installed on the top of the solution chamber (1). The air intake pipe (302) is fixedly connected to the surface of the air intake pipe (302). The filter plate (303) is fixedly connected to the inner wall of the air intake pipe (302). The fan (304) is installed on the top of the solution chamber (1). Inside the air inlet pipe (302), the contraction tube (305) is fixedly connected to one end of the air inlet pipe (302), the motor (306) is fixedly connected to the bottom of the solution chamber (1), the rotating shaft (307) is installed at the output end of the motor (306), the first abutment plate (308) is fixedly connected to the top end of the rotating shaft (307), the support plate (309) is fixedly connected to the inner wall of the movable chamber (301), the first spring push rod (310) is fixedly connected to the bottom of the support plate (309), and the second abutment plate (311) is fixedly connected to the bottom end of the first spring push rod (310).

2. The energy-saving air circulation device for civil defense as described in claim 1, characterized in that: The bottom and top of the movable chamber (301) are fixedly connected with retaining rings. The top of the solution chamber (1) is provided with a groove. The retaining ring at the bottom of the movable chamber (301) is engaged with the groove and is rotatably connected to the groove. The movable chamber (301) is rotatably connected to the solution chamber (1).

3. The energy-saving air circulation device for civil defense as described in claim 2, characterized in that: The bottom end of the shrink tube (305) extends into the interior of the solution chamber (1), the rotating shaft (307) passes through the solution chamber (1) and extends above the solution chamber (1), and the rotating shaft (307) is rotatably connected to the solution chamber (1).

4. The energy-saving air circulation device for civil defense as described in claim 3, characterized in that: The top of the first abutment (308) is provided with a slot, and the bottom of the second abutment (311) is fixedly connected with a card plate. The slot at the top of the first abutment (308) engages with the card plate at the bottom of the second abutment (311).

5. The energy-saving air circulation device for civil defense as described in claim 4, characterized in that: The gas outlet assembly (4) includes a gas outlet chamber (401), a bent rod (402), a limiting plate (403), a second spring push rod (404), a turntable (405), a scraper (406), and a perforated plate (407). The gas outlet chamber (401) is located on the top of the movable chamber (301). The bent rod (402) is fixedly connected to the outer wall of the solution chamber (1). The limiting plate (403) is fixedly connected to the outer wall of the gas outlet chamber (401). The second spring push rod (404) is fixedly connected to the top of the support plate (309). The scraper (406) is fixedly connected to the top of the second spring push rod (404). The perforated plate (407) is fixedly connected to the inner wall of the gas outlet chamber (401).

6. The energy-saving air circulation device for civil defense as described in claim 5, characterized in that: The air inlet inner diameter of the air outlet chamber (401) is larger than the air outlet inner diameter of the air outlet chamber (401). The bottom of the air outlet chamber (401) is provided with a second groove. The second groove at the bottom of the air outlet chamber (401) is engaged with the retaining ring at the top of the movable chamber (301) and is rotatably connected with the retaining ring.

7. The energy-saving air circulation device for civil defense as described in claim 6, characterized in that: The top end of the bent rod (402) is fixedly connected to a threaded rod, and the top of the limiting plate (403) is provided with a nut and is adapted to the threaded rod. The limiting plate (403) is located on the outer wall of the threaded rod and is slidably connected to the threaded rod.