Gas filtering device for civil air defense engineering

Abstract

The utility model relates to the technical field of collection support, concretely to a gas filter device of civil air defence engineering. The utility model discloses a box body and fan, the inside of box body is equipped with collection device, the collection device includes fixed frame and concave groove board, the outside of fixed frame is fixedly connected with box body, the inside slide coupling of concave groove board has active carbon adsorption board, one end of fixed frame is fixedly connected with four telescopic rods, and the output fixedly connected with rubber frame of four telescopic rods, one end of rubber frame is fixedly connected with filter plate, one end fixedly connected with micro vibration motor of filter plate, one side fixedly connected with T shape groove board of fixed frame, the inside slide coupling of T shape groove board has T shape board. The utility model solves the problem that the traditional gas filter device of civil air defence engineering is inconvenient to collect the sundries after removing, the sundries can fall to the bottom of the box, and the new block point is formed after the accumulation, which leads to the problem of airflow resistance increase, ventilation efficiency decline.

Description

Technical Field

[0001] This utility model relates to the field of collection support technology, and in particular to a gas filtration device for civil defense projects. Background Technology

[0002] Gas filtration devices in civil defense projects are key protective equipment specifically designed for civil defense projects (such as air-raid shelters and underground protective buildings). They are mainly used to filter and purify harmful substances, dust, and harmful gases in the air to ensure the safety of personnel and their normal activities inside the project.

[0003] For example, publication number CN213823871U discloses a gas filtration device for civil defense engineering, relating to the field of civil defense engineering. It includes a housing, an anti-clogging mechanism, and a locking mechanism. A fan is installed at one end inside the housing. The anti-clogging mechanism includes an upper fixed plate located at the top of the housing. Two upper springs are installed on one side of the upper fixed plate, and a filter screen is installed at the other end of each upper spring. Two lower springs are installed at the bottom of the filter screen, and a lower fixed plate is installed at the other end of each lower spring. A base is installed on the outer wall of the housing. This utility model, by setting up a motor, a cam, a filter plate, and springs, causes the cam to rotate when the motor is started. The top of the cam intermittently strikes the filter screen. The filter screen, restricted by the upper and lower springs, undergoes small reciprocating movements and vibrates under the elastic force, shaking and removing debris adhering to the filter screen surface, thus preventing clogging.

[0004] The aforementioned patent describes a system that uses a motor, cam, filter plate, and spring. When the motor is started, the cam rotates, and the top of the cam intermittently strikes the filter screen, shaking away the debris attached to the filter screen surface. However, some debris remains, making it difficult to collect the removed debris. The debris falls to the bottom of the housing, accumulates, and forms new blockages, leading to increased airflow resistance and decreased ventilation efficiency. Therefore, a gas filtration device for civil defense projects is needed that can remove and collect the attached debris for centralized processing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing gas filtration devices for civil defense projects, such as the inconvenience in collecting cleaned debris, the debris falling to the bottom of the housing and accumulating to form new blockages, leading to increased airflow resistance and decreased ventilation efficiency. Therefore, this invention proposes a gas filtration device for civil defense projects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas filtration device for civil defense engineering, comprising a housing and a fan, wherein a collection device is provided inside the housing, the collection device comprising a fixed frame and a concave groove plate, the outer side of the fixed frame being fixedly connected to the housing, an activated carbon adsorption plate being slidably connected to the inner side of the concave groove plate, four telescopic rods being fixedly connected to one end of the fixed frame, a rubber frame being fixedly connected to the output ends of the four telescopic rods, a filter plate being fixedly connected to one end of the rubber frame, a micro vibration motor being fixedly connected to one end of the filter plate, a T-shaped groove plate being fixedly connected to one side of the fixed frame, a T-shaped plate being slidably connected inside the T-shaped groove plate, a collection box being fixedly connected to one side of the T-shaped plate, and an L-shaped limiting plate being fixedly connected to one side of the collection box.

[0007] The above components achieve the following effects: the vibration generated by the micro vibration motor is transmitted to the filter plate, causing the filter plate to vibrate. The vibration force is transmitted from the rubber frame to the telescopic rod, which controls the vibration range of the filter plate and prevents the filter plate from colliding with the housing.

[0008] Preferably, the arc surface of the telescopic rod is fitted with a spring, and the two ends of the four springs are respectively fixedly connected to the fixed frame and the rubber frame.

[0009] The effect achieved by the above components is that the spring-reinforced telescopic rod returns to its original state.

[0010] Preferably, an internally threaded ring is fixedly connected to one side of the collection box.

[0011] The effect achieved by the above components is that the internal threaded ring is fixed on the collection box.

[0012] Preferably, the internal threaded ring is internally threaded with a bolt.

[0013] The effect achieved by the above components is that the bolt and the internal threaded ring are compatible.

[0014] Preferably, the bolt's arc surface is slidably connected to a fixing plate, and one end of the fixing plate is fixedly connected to the housing.

[0015] The effect achieved by the above components is that the bolts and the fixing plate are compatible.

[0016] Preferably, a protective device is provided on one side of the box body. The protective device includes an outer panel, one end of which is fixedly connected to the box body, and a limit strip is fixedly connected to the outer side of the outer panel.

[0017] The aforementioned components achieve the following effect: the limiting strip is fixed to the outer panel, and the outer panel is fixed to the housing.

[0018] Preferably, a connecting strip is fixedly connected to the inner side of the outer panel, and the inner side of the connecting strip is fixedly connected to the housing.

[0019] The aforementioned components achieve the effect of preventing the outer panel from shifting position.

[0020] Preferably, a cushioning pad is fixedly connected to the outer side of the outer panel.

[0021] The effect achieved by the above components is to fix the buffer pad to the outer panel.

[0022] Preferably, a sponge pad is fixedly connected to the outer side of the buffer pad, and a protective plate is fixedly connected to the outer side of the sponge pad.

[0023] The effect achieved by the above components is that the impact force on the protective plate is reduced by the sponge pad and the buffer pad.

[0024] In summary, the beneficial effects of this utility model are as follows:

[0025] In this invention, by means of an adjustment device, when gas filtration is required, the fan is started, the air is filtered by the filter plate and then discharged through the activated carbon adsorption plate. The micro vibration motor is started to make the filter plate vibrate, causing the debris on the filter plate to fall into the collection box. By means of an adjustment device, the problem of traditional air filtration devices for civil defense projects, which are not convenient for collecting the cleaned debris, and the debris will fall to the bottom of the box, accumulate and form new blockage points, resulting in increased airflow resistance and decreased ventilation efficiency is solved.

[0026] In this invention, a protective device is used to enhance the anti-collision performance of the device. The outer plate and connecting strip are installed around the box to prevent the protective plate from directly impacting the box. The impact force is reduced by the buffer pad and sponge pad. The protective device solves the problem that the gas filtration device of a traditional civil defense project has poor anti-collision performance and is prone to external deformation after being hit, which affects the filtration effect. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the collection device of this utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of the three-dimensional structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the protective structure of this utility model.

[0031] Legend: 1. Box body; 2. Collection device; 201. Fixing frame; 202. Telescopic rod; 203. Spring; 204. Rubber frame; 205. Filter plate; 206. Miniature vibration motor; 207. T-shaped groove plate; 208. T-shaped plate; 209. Collection box; 210. Internal threaded ring; 211. L-shaped limiting plate; 212. Concave groove plate; 213. Activated carbon adsorption plate; 214. Fixing plate; 215. Bolt; 3. Protective device; 31. Outer plate; 32. Limiting strip; 33. Connecting strip; 34. Buffer pad; 35. Sponge pad; 36. Protective plate; 4. Fan. Detailed Implementation

[0032] Reference Figure 1 and Figure 3 As shown, this utility model provides a technical solution: a gas filtration device for civil defense engineering, including a box 1 and a fan 4, a collection device 2 is provided inside the box 1, and a protective device 3 is provided on one side of the box 1.

[0033] The following section will describe the specific setup and function of the collection device 2 and the protective device 3.

[0034] Reference Figure 2As shown in this embodiment: the collection device 2 includes a fixed frame 201 and a concave groove plate 212. The outer side of the fixed frame 201 is fixedly connected to the box body 1. An activated carbon adsorption plate 213 is slidably connected to the inner side of the concave groove plate 212. Four telescopic rods 202 are fixedly connected to one end of the fixed frame 201. A rubber frame 204 is fixedly connected to the output end of the four telescopic rods 202. A filter plate 205 is fixedly connected to one end of the rubber frame 204. A micro vibration motor 206 is fixedly connected to one end of the filter plate 205. A T-shaped groove plate 207 is fixedly connected to one side of the fixed frame 201. A T-shaped plate 208 is slidably connected inside the T-shaped groove plate 207. A collection box 209 is fixedly connected to one side of the T-shaped plate 208. An L-shaped limiting plate 211 is fixedly connected to one side of the collection box 209. The micro-vibration motor 206 generates vibration, which is transmitted to the filter plate 205, causing it to vibrate. The vibration force is transmitted from the rubber frame 204 to the telescopic rod 202, which controls the vibration range of the filter plate 205 and prevents the filter plate 205 from colliding with the housing 1. Springs 203 are fitted onto the arc surface of the telescopic rod 202, and the two ends of the four springs 203 are fixedly connected to the fixed frame 201 and the rubber frame 204, respectively. This achieves the effect of the springs 203 reinforcing the telescopic rod 202 to return to its original state. An internally threaded ring 210 is fixedly connected to one side of the collection box 209, ensuring the internally threaded ring 210 is fixed to the collection box 209. Bolts 215 are connected to the internal threads of the internally threaded ring 210, ensuring the bolts 215 and the internally threaded ring 210 are compatible. A fixing plate 214 is slidably connected to the arc surface of the bolt 215, and one end of the fixing plate 214 is fixedly connected to the housing 1. This achieves the effect of matching bolt 215 and fixing plate 214.

[0035] Reference Figure 4 As shown in this embodiment: the protective device 3 includes an outer plate 31, one end of which is fixedly connected to the housing 1, and a limiting strip 32 is fixedly connected to the outer side of the outer plate 31. This achieves the effect of fixing the limiting strip 32 to the outer plate 31 and the outer plate 31 to the housing 1. A connecting strip 33 is fixedly connected to the inner side of the outer plate 31, and the inner side of the connecting strip 33 is fixedly connected to the housing 1. This achieves the effect of preventing the outer plate 31 from shifting position. A buffer pad 34 is fixedly connected to the outer side of the outer plate 31. This achieves the effect of fixing the buffer pad 34 to the outer plate 31. A sponge pad 35 is fixedly connected to the outer side of the buffer pad 34, and a protective plate 36 is fixedly connected to the outer side of the sponge pad 35. This achieves the effect of reducing the impact force on the protective plate 36 by the sponge pad 35 and the buffer pad 34.

[0036] Working Principle: When gas filtration is required, the operator first installs the housing 1 at the air inlet of the civil defense project using the adjustment device. Then, the fan 4 is started. The fan 4 generates suction, drawing outside air into the housing 1. The air first undergoes preliminary filtration through the filter plate 205 to remove larger particles. The pre-filtered air then enters the activated carbon adsorption plate 213 for further adsorption of harmful gases and fine particles. Finally, clean air is discharged from the housing 1. As filtration continues, a certain amount of debris gradually adheres to the surface of the filter plate 205. At this point, the micro vibration motor 206 is started. The vibration generated by the motor is transmitted to the filter plate 205, causing it to vibrate at high frequency. The attached debris falls off under the vibration and falls into the collection box 209 below by its own gravity, completing the debris collection. During the vibration of the filter plate 205, the vibration is transmitted to the rubber frame 204 connected to it. The limiting structure composed of the telescopic rod 202 and the spring 203 can effectively limit the rubber frame. The vibration range of 204 provides support for the filter plate 205 and prevents it from colliding with the housing 1 and being damaged during vibration. To replace the activated carbon adsorption plate 213 or clean debris from the collection box 209, the bolt 215 can be rotated to unscrew the internal threaded ring 210, releasing the restriction on the collection box 209. At this point, the collection box 209 can be pushed, causing the T-shaped plate 208 to slide out of the T-shaped groove plate 207, completing the disassembly of the collection box 209. (The text abruptly ends here, likely due to an incomplete sentence or missing information.) 9. During the movement, the L-shaped limiting plate 211 connected to it will move accordingly, releasing the limiting of the concave groove plate 212, so that the concave groove plate 212 can be taken out from the box 1, making it convenient to replace the internal activated carbon adsorption plate 213. Through the adjustment device, the problem of traditional air defense engineering gas filtration devices being inconvenient to collect the cleaned debris, causing the debris to fall to the bottom of the box 1, accumulate and form new blockage points, resulting in increased airflow resistance and decreased ventilation efficiency is solved.

[0037] With the protective device 3, when it is necessary to enhance the anti-collision performance of the device, the operator first installs the outer plate 31 and connecting strip 33 on the outside of the box 1. When an external object hits the box 1, the outer protective plate 36 will first come into contact with the external object, buffering the initial impact force and preventing the external object from directly hitting the box 1. The impact force received by the protective plate 36 will be transmitted to the inner buffer pad 34 and sponge pad 35 in sequence. The energy will be further reduced through the elastic deformation of the two. Since a certain gap is reserved between the protective plate 36 and the box 1, even if the impact force is not completely offset, the physical isolation effect of the gap can effectively prevent the residual impact force from directly acting on the box 1, thereby achieving multi-level protection of the internal structure. With the protective device 3, the problem of poor anti-collision performance of traditional air defense gas filtration devices, which are prone to external deformation after collision and affect the filtration effect is solved.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A gas filtering device for a civil defense shelter, comprising a box (1) and a fan (4), characterized in that: The box (1) is equipped with a collection device (2) inside. The collection device (2) includes a fixed frame (201) and a concave groove plate (212). The outer side of the fixed frame (201) is fixedly connected to the box (1). An activated carbon adsorption plate (213) is slidably connected to the inner side of the concave groove plate (212). Four telescopic rods (202) are fixedly connected to one end of the fixed frame (201). A rubber frame (204) is fixedly connected to the output end of the four telescopic rods (202). A filter plate (205) is fixedly connected to one end of the rubber frame (204), a micro vibration motor (206) is fixedly connected to one end of the filter plate (205), a T-shaped groove plate (207) is fixedly connected to one side of the fixed frame (201), a T-shaped plate (208) is slidably connected inside the T-shaped groove plate (207), a collection box (209) is fixedly connected to one side of the T-shaped plate (208), and an L-shaped limiting plate (211) is fixedly connected to one side of the collection box (209).

2. The gas filtering device for civil defense engineering according to claim 1, characterized in that: The arc surface of the telescopic rod (202) is fitted with springs (203), and the two ends of the four springs (203) are fixedly connected to the fixed frame (201) and the rubber frame (204) respectively.

3. A gas filtration device for civil defense engineering according to claim 1, characterized in that: An internal threaded ring (210) is fixedly connected to one side of the collection box (209).

4. A gas filtration device for civil defense engineering according to claim 3, characterized in that: The internal threaded ring (210) is internally threaded with a bolt (215).

5. A gas filtration device for civil defense engineering according to claim 4, characterized in that: The bolt (215) has a fixed plate (214) slidably connected to its arc surface, and one end of the fixed plate (214) is fixedly connected to the box body (1).

6. A gas filtration device for civil defense engineering according to claim 5, characterized in that: The box (1) is provided with a protective device (3) on one side. The protective device (3) includes an outer plate (31). One end of the outer plate (31) is fixedly connected to the box (1), and a limit strip (32) is fixedly connected to the outer side of the outer plate (31).

7. A gas filtration device for civil defense engineering according to claim 6, characterized in that: A connecting strip (33) is fixedly connected to the inner side of the outer panel (31), and the inner side of the connecting strip (33) is fixedly connected to the box body (1).

8. A gas filtration device for civil defense engineering according to claim 7, characterized in that: A buffer pad (34) is fixedly connected to the outer side of the outer plate (31).

9. A gas filtration device for civil defense engineering according to claim 8, characterized in that: A sponge pad (35) is fixedly connected to the outside of the buffer pad (34), and a protective plate (36) is fixedly connected to the outside of the sponge pad (35).

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