A moisture-proof and ventilation structure for civil defense engineering

Abstract

This utility model provides a moisture-proof ventilation structure for civil defense projects, belonging to the field of civil defense engineering. It includes a ventilation duct, a dust filter, and an intake fan. The dust filter is fixedly connected to the inner wall of the ventilation duct, and the intake fan is installed inside the ventilation duct. A moisture-proof component is installed inside the ventilation duct. In this utility model, outside air enters the ventilation duct under the action of the intake fan. When it passes through a sponge pad, the moisture in the air is absorbed by the sponge pad, and the remaining dry air is discharged into the civil defense project through a perforated plate. This solves the problem that existing ventilation structures cannot dehumidify the air entering the civil defense project. Simultaneously, the high-speed airflow inside the ventilation duct drives rollers to roll on the surface of the sponge pad via inclined blades and a rotating shaft, compressing the sponge pad in conjunction with the perforated plate, thereby expelling the moisture absorbed inside the sponge pad and ensuring its dryness.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering, and more specifically, to a moisture-proof and ventilation structure for civil defense engineering. Background Technology

[0002] Civil air defense engineering refers to underground protective structures built independently to ensure the shelter of personnel and materials, civil air defense command, and medical rescue during wartime, as well as basements integrated with above-ground buildings that can be used for air defense during wartime. To ensure air circulation within civil air defense engineering projects, ventilation structures are usually installed. These ventilation structures provide clean air and regulate the internal environment.

[0003] Because the ventilation structures of civil defense projects primarily focus on meeting basic ventilation and NBC (nuclear, chemical, and biological) protection requirements, they lack moisture-proof structures. Therefore, when the humidity in the outside air is too high, humid air enters the civil defense project through the ventilation structure, leading to increased humidity inside and problems such as mold growth and metal corrosion. How to solve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a moisture-proof ventilation structure for civil defense projects, aiming to solve the problem that existing ventilation structures cannot dehumidify the air entering the civil defense project.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a moisture-proof ventilation structure for civil defense projects, including a ventilation pipe, a dust filter and an air intake fan. The dust filter is fixedly connected to the inner wall of the ventilation pipe, the air intake fan is installed inside the ventilation pipe, and a moisture-proof component is provided inside the ventilation pipe.

[0007] The moisture-proof component includes a fixed rod, a sleeve, a rotating shaft, an inclined fan blade, a rotating plate, a bent rod, a connector, an outer rod, a roller, an outer plate, a sponge pad, and a perforated plate. The fixed rod is fixedly connected to the inner wall of the ventilation duct. The sleeve is located inside the ventilation duct. The rotating shaft is located inside the ventilation duct. The inclined fan blade is located inside the ventilation duct. The rotating plate is fixedly connected to one end of the rotating shaft. The bent rod is fixedly connected to the outer wall of the rotating plate. The connector is fixedly connected to the end of the bent rod away from the rotating plate. The outer rod is located inside the ventilation duct. The roller is located inside the ventilation duct. The outer plate is fixedly connected to the inner wall of the ventilation duct. The sponge pad is fixedly connected to the surface of the outer plate. The perforated plate is fixedly connected to the surface of the outer plate.

[0008] Preferably, the end of the fixing rod away from the ventilation pipe is fixedly connected to the outer wall of the sleeve, the rotating shaft passes through the sleeve and extends to the outside of the sleeve, and the rotating shaft is rotatably connected to the sleeve.

[0009] By adopting the above technical solution, the fixing rod can support the sleeve, and the rotating shaft can rotate inside the sleeve.

[0010] Preferably, the inclined fan blades are evenly arranged on the outer wall of the rotating shaft, the outer rod is fixedly connected to the connecting piece, the outer rod passes through the roller and is rotatably connected to the roller.

[0011] By adopting the above technical solution, when the intake fan draws outside air into the ventilation duct, the inclined fan blades will drive the rotating shaft to rotate under the action of the rapidly flowing air. The connecting parts, under the action of the bent rod and the rotating plate, can drive the roller to rotate through the outer rod.

[0012] Preferably, the surface of the outer plate is provided with auxiliary components, the outer wall of the sponge pad is in contact with the outer wall of the roller, and the outer wall of the sponge pad abuts against the outer wall of the perforated plate.

[0013] By adopting the above technical solution, when the roller rolls on the outer wall of the sponge pad, it cooperates with the perforated plate to squeeze the sponge pad, thereby squeezing out the water inside the sponge pad and ensuring that the inside of the sponge pad is dry.

[0014] Preferably, the auxiliary component includes an inner groove, a magnetic plate, and a spring. The inner groove is formed on the surface of the outer plate, the magnetic plate is disposed inside the inner groove, and the spring is fixedly connected to the inner wall of the inner groove.

[0015] Preferably, the magnetic plates are distributed inside the inner groove and on the outer wall of the connector, and the magnetic plates located inside the inner groove are slidably connected to the inner groove.

[0016] By adopting the above technical solution, the magnetic plate can slide inside the inner groove.

[0017] Preferably, the magnetic plate inside the inner groove and the magnetic plate inside the connector repel each other, and one side of the spring is fixedly connected to the outer wall of the magnetic plate inside the inner groove.

[0018] By adopting the above technical solution, the repulsive force generated between the magnetic plates can assist the tilted fan blades in driving the connecting parts to rotate, and the spring can push the magnetic plates inside the inner groove to reset.

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

[0020] 1. Outside air enters the ventilation duct under the action of the intake fan. When it passes through the sponge pad, the moisture in the air is absorbed by the sponge pad, and the remaining dry air is discharged into the interior of the civil defense project through the perforated plate. This solves the problem that the existing ventilation structure cannot dehumidify the air entering the civil defense project. At the same time, the high-speed airflow inside the ventilation duct drives the rollers to roll on the surface of the sponge pad through the inclined fan blades and rotating shaft. This, together with the perforated plate, compresses the sponge pad, thereby expelling the moisture absorbed inside the sponge pad and ensuring that the sponge pad is dry.

[0021] 2. When the two magnetic plates come into contact, the magnetic plate located inside the outer plate will move into the inner groove under the action of repulsion and apply pressure to the spring. When the two magnetic plates separate, the spring pushes the magnetic plate located inside the outer plate to reset. At this time, a repulsive force will be generated between the two magnetic plates. Under the action of the repulsive force, the connecting part will accelerate the rotation speed, reduce the driving force required for the tilting fan blade to rotate, and ensure the stable operation of the equipment. 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 the overall intent of a moisture-proof and ventilation structure for civil defense engineering provided by the embodiments of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of a moisture-proof ventilation pipe for a civil defense project, provided by an embodiment of this utility model.

[0025] Figure 3 This is a schematic diagram of a moisture-proof ventilation structure moisture-proof component for civil defense engineering provided by an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the interior of the outer panel of a moisture-proof and ventilation structure for civil defense engineering, provided by an embodiment of this utility model;

[0027] Figure 5 This is a utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 6 This is a utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0029] In the diagram: 1. Ventilation duct; 2. Dust filter; 3. Intake fan; 4. Moisture-proof component; 401. Fixing rod; 402. Sleeve; 403. Rotating shaft; 404. Inclined fan blade; 405. Rotating plate; 406. Bent rod; 407. Connector; 408. Outer rod; 409. Roller; 410. Outer plate; 411. Sponge pad; 412. Perforated plate; 5. Auxiliary component; 501. Inner groove; 502. Magnetic plate; 503. Spring. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-6 A moisture-proof ventilation structure for civil defense engineering includes a ventilation pipe 1, a dust filter 2 and an air intake fan 3. The dust filter 2 is fixedly connected to the inner wall of the ventilation pipe 1, the air intake fan 3 is installed inside the ventilation pipe 1, and a moisture-proof component 4 is provided inside the ventilation pipe 1.

[0032] Moisture-proof component 4 includes a fixing rod 401, a sleeve 402, a rotating shaft 403, an inclined fan blade 404, a rotating plate 405, a bent rod 406, a connector 407, an outer rod 408, a roller 409, an outer plate 410, a sponge pad 411, and a perforated plate 412. The fixing rod 401 is fixedly connected to the inner wall of the ventilation pipe 1. The sleeve 402 is disposed inside the ventilation pipe 1. The end of the fixing rod 401 away from the ventilation pipe 1 is fixedly connected to the outer wall of the sleeve 402. The fixing rod 401 can support the sleeve 402. The rotating shaft 403 is disposed in the ventilation pipe 1. Inside the ventilation duct 1, the rotating shaft 403 passes through the sleeve 402 and extends to the outside of the sleeve 402. The rotating shaft 403 is rotatably connected to the sleeve 402 and can rotate inside the sleeve 402. The inclined fan blades 404 are disposed inside the ventilation duct 1 and are evenly distributed on the outer wall of the rotating shaft 403. When the intake fan 3 draws outside air into the ventilation duct 1, the inclined fan blades 404 will drive the rotating shaft 403 to rotate under the action of the rapidly flowing air. The rotating plate 405 is fixedly connected to one end of the rotating shaft 403. Rod 406 is fixedly connected to the outer wall of rotating plate 405. Connector 407 is fixedly connected to the end of bent rod 406 away from rotating plate 405. Outer rod 408 is disposed inside ventilation pipe 1 and is fixedly connected to connector 407. Roller 409 is disposed inside ventilation pipe 1. Outer rod 408 passes through roller 409 and is rotatably connected to roller 409. Under the action of bent rod 406 and rotating plate 405, connector 407 can drive roller 409 to rotate through outer rod 408. Outer plate 410 is fixedly connected to the inner wall of ventilation pipe 1. An auxiliary component 5 is provided on the surface of the outer plate 410. A sponge pad 411 is fixedly connected to the surface of the outer plate 410. The outer wall of the sponge pad 411 contacts the outer wall of the roller 409. A perforated plate 412 is fixedly connected to the surface of the outer plate 410. The outer wall of the sponge pad 411 abuts against the outer wall of the perforated plate 412. When the roller 409 rolls on the outer wall of the sponge pad 411, it cooperates with the perforated plate 412 to squeeze the sponge pad 411, thereby squeezing out the water inside the sponge pad 411 and ensuring that the inside of the sponge pad 411 is dry.

[0033] Outside air enters the ventilation duct 1 under the action of the intake fan 3. When it passes through the sponge pad 411, the moisture in the air is absorbed by the sponge pad 411. The remaining dry air is discharged into the interior of the civil defense project through the perforated plate 412, thus solving the problem that the existing ventilation structure cannot dehumidify the air entering the civil defense project. At the same time, the high-speed airflow inside the ventilation duct 1 drives the roller 409 to roll on the surface of the sponge pad 411 through the inclined fan blade 404 and the rotating shaft 403. In conjunction with the perforated plate 412, the sponge pad 411 is compressed, thereby expelling the moisture absorbed inside the sponge pad 411 and ensuring the dryness of the sponge pad 411.

[0034] The auxiliary component 5 includes an inner groove 501, a magnetic plate 502, and a spring 503. The inner groove 501 is formed on the surface of the outer plate 410. The magnetic plate 502 is disposed inside the inner groove 501 and is distributed inside the inner groove 501 and on the outer wall of the connector 407. The magnetic plate 502 inside the inner groove 501 is slidably connected to the inner groove 501 and can slide inside the inner groove 501. The magnetic plate 502 inside the inner groove 501 and the magnetic plate 502 inside the connector 407 repel each other. The repulsive force generated between the magnetic plates 502 can assist the tilting fan blade 404 in pushing the connector 407 to rotate. The spring 503 is fixedly connected to the inner wall of the inner groove 501. One side of the spring 503 is fixedly connected to the outer wall of the magnetic plate 502 inside the inner groove 501. The spring 503 can push the magnetic plate 502 inside the inner groove 501 to reset.

[0035] When the two magnetic plates 502 come into contact, the magnetic plate 502 located inside the outer plate 410 will move into the inner groove 501 under the action of repulsion and apply pressure to the spring 503. When the two magnetic plates 502 separate, the spring 503 pushes the magnetic plate 502 located inside the outer plate 410 to reset. At this time, a repulsive force will be generated between the two magnetic plates 502. Under the action of the repulsive force, the connector 407 will accelerate its rotation speed, reduce the driving force required for the tilting fan blade 404 to rotate, and ensure the stable operation of the equipment.

[0036] The working principle of the moisture-proof ventilation structure of this civil defense project is as follows: When the air intake fan 3 is started, the air intake fan 3 draws outside air into the ventilation pipe 1 through the dust filter screen 2 and accelerates the air flow inside the ventilation pipe 1. When the air inside the ventilation pipe 1 passes through the sponge pad 411, the humid gas in the air will be absorbed by the sponge pad 411, and the remaining dry gas will be discharged through the perforated plate 412.

[0037] 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. A moisture-proof ventilation structure for civil defense engineering, comprising a ventilation pipe (1), a dust filter (2), and an air intake fan (3), wherein the dust filter (2) is fixedly connected to the inner wall of the ventilation pipe (1), and the air intake fan (3) is installed inside the ventilation pipe (1), characterized in that: The ventilation pipe (1) is equipped with a moisture-proof component (4); The moisture-proof component (4) includes a fixed rod (401), a sleeve (402), a rotating shaft (403), an inclined fan blade (404), a rotating plate (405), a bent rod (406), a connector (407), an outer rod (408), a roller (409), an outer plate (410), a sponge pad (411), and a perforated plate (412). The fixed rod (401) is fixedly connected to the inner wall of the ventilation pipe (1), the sleeve (402) is disposed inside the ventilation pipe (1), the rotating shaft (403) is disposed inside the ventilation pipe (1), and the inclined fan blade (404) is disposed inside the ventilation pipe (1). The rotating plate (405) is fixedly connected to one end of the rotating shaft (403), the bent rod (406) is fixedly connected to the outer wall of the rotating plate (405), the connecting piece (407) is fixedly connected to the end of the bent rod (406) away from the rotating plate (405), the outer rod (408) is disposed inside the ventilation pipe (1), the roller (409) is disposed inside the ventilation pipe (1), the outer plate (410) is fixedly connected to the inner wall of the ventilation pipe (1), the sponge pad (411) is fixedly connected to the surface of the outer plate (410), and the hollow plate (412) is fixedly connected to the surface of the outer plate (410).

2. The moisture-proof ventilation structure of civil air defense engineering according to claim 1, characterized in that: The end of the fixed rod (401) away from the ventilation pipe (1) is fixedly connected to the outer wall of the sleeve (402). The rotating shaft (403) passes through the sleeve (402) and extends to the outside of the sleeve (402). The rotating shaft (403) is rotatably connected to the sleeve (402).

3. The moisture-proof ventilation structure of civil air defense engineering according to claim 2, characterized in that: The inclined fan blades (404) are evenly arranged on the outer wall of the rotating shaft (403), the outer rod (408) is fixedly connected to the connector (407), the outer rod (408) passes through the roller (409) and is rotatably connected to the roller (409).

4. The moisture-proof ventilation structure of civil air defense engineering according to claim 3, characterized in that: The outer plate (410) is provided with an auxiliary component (5), the outer wall of the sponge pad (411) is in contact with the outer wall of the roller (409), and the outer wall of the sponge pad (411) abuts against the outer wall of the perforated plate (412).

5. The moisture-proof and ventilation structure for civil defense engineering according to claim 4, characterized in that: The auxiliary component (5) includes an inner groove (501), a magnetic plate (502) and a spring (503). The inner groove (501) is opened on the surface of the outer plate (410), the magnetic plate (502) is disposed inside the inner groove (501), and the spring (503) is fixedly connected to the inner wall of the inner groove (501).

6. The moisture-proof ventilation structure of civil air defense engineering according to claim 5, characterized in that: The magnetic plates (502) are distributed inside the inner groove (501) and on the outer wall of the connector (407). The magnetic plates (502) located inside the inner groove (501) are slidably connected to the inner groove (501).

7. The moisture-proof ventilation structure of civil air defense engineering according to claim 6, characterized in that: The magnetic plate (502) located inside the inner groove (501) and the magnetic plate (502) inside the connector (407) are mutually repulsive, and one side of the spring (503) is fixedly connected to the outer wall of the magnetic plate (502) located inside the inner groove (501).

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