Civil air defense ventilation filtering device easy to maintain

Abstract

The utility model discloses a civil air defense ventilation filtering device easy to maintain in the field of civil air defense equipment, which comprises a box body, the box body comprises a main box body and a side end cover, the main box body and the side end cover are inserted and fixed through bolts, an air inlet and an air outlet are respectively arranged at the front end and the rear end of the main box body, a sliding chute is arranged at the top and the bottom in the main box body, and a filtering plate is inserted in the sliding chute. The filter plate comprises a front frame, a rear frame and a filter element layer clamped between the front frame and the rear frame, positioning holes are formed in the edge of the filter element layer, and positioning columns and positioning grooves are formed in the positions, corresponding to the positioning holes, of the front frame and the rear frame respectively. The civil air defense ventilation filtering device easy to maintain has the advantages of being low in maintenance cost, high in maintenance efficiency, good in sealing performance and the like.

Description

Technical Field

[0001] This utility model relates to the field of civil defense equipment, and in particular to an easy-to-maintain ventilation and filtration device for civil defense. Background Technology

[0002] Civil defense engineering refers to underground protective structures built independently to ensure the shelter of personnel and materials, command and control of civil air defense, and medical rescue during wartime, as well as basements integrated with above-ground buildings that can be used for air defense during wartime. These systems are complex and structurally rigorous, requiring careful consideration of the special environments during wartime and disasters during design and construction. Ventilation filtration devices must be installed on their ventilation ducts. To ensure ventilation quality, the filter elements in these devices must be replaced continuously, especially when the air contains high levels of toxic substances or dust, leading to significant filter wear and frequent replacements. However, current technology typically uses an integral structure for filter elements, where the frame and core are a single unit, resulting in high operating costs due to frequent replacements. Furthermore, the installation structure of existing filter elements is complex, with lengthy disassembly and installation times, leading to prolonged ventilation shutdown times and endangering the lives of personnel in underground civil defense rooms. Utility Model Content

[0003] The purpose of this invention is to provide an easy-to-maintain ventilation and filtration device for human protection, in order to solve the problems existing in the prior art.

[0004] The purpose of this utility model is achieved as follows: an easy-to-maintain ventilation and filtration device for civil defense includes a box, which includes a main box and a side end cover. The main box and the side end cover are inserted together and fixed with bolts. The front and rear ends of the main box are respectively provided with an air inlet and an air outlet. The top and bottom of the main box are provided with a sliding groove, and a filter plate is inserted into the sliding groove. The filter plate includes a front frame, a rear frame, and a filter core layer sandwiched between the front frame and the rear frame. The edge of the filter core layer is provided with a positioning hole. The front frame and the rear frame are respectively provided with a positioning post and a positioning groove at the position corresponding to the positioning hole.

[0005] This utility model's easy-to-maintain ventilation and filtration device for civil defense uses a split-type filter plate (i.e., filter element). Replacement only requires the filter element layer, significantly reducing maintenance costs. Furthermore, the filter plate's assembly method and its connection to the main housing are both very simple, greatly improving maintenance efficiency. In addition, the main housing and side end caps of this easy-to-maintain ventilation and filtration device use a plug-in structure and are fixed with bolts, resulting in good sealing performance and minimizing the leakage of toxic gases.

[0006] As a further improvement of this utility model, the side end cover includes an outer end plate, a surrounding plate, and an inner end plate. The opening end of the main housing is inserted into the surrounding plate, and the end abuts against the inner end plate. The outer end plate is detachably connected to the outer end of the surrounding plate, and a storage layer is formed between the outer end plate and the inner end plate. A connecting post is provided on the outer wall of the inner end plate at the position corresponding to the positioning hole of the filter element layer. The storage layer forms a storage space for the spare filter element layer. The spare filter element layer can be quickly and neatly stored in it through the connecting post. When the filter plate needs to be replaced, the spare filter element layer can be easily taken out by simply opening the outer end plate. In special periods such as wartime, the time spent searching for the spare filter element layer in the storage room can be saved, and the process risk can be reduced.

[0007] As a further improvement of this utility model, the main housing and inner end plate are provided with limiting slots at the corresponding two sides of the filter plate to effectively fix the filter plate, prevent the filter plate from vibrating under the action of the induced draft fan during the ventilation and filtration process, avoid deformation of the front and rear frames of the filter plate, and improve service life.

[0008] As a further improvement of this utility model, an elastic positioning ring is provided on the connecting column, so as to limit the spare filter core layer and prevent it from deforming when the spare filter core layer is insufficient to fill the entire storage layer.

[0009] As a further improvement of this utility model, the outer wall of the main box is provided with a first positioning plate, and the end of the enclosure is provided with a second positioning plate that cooperates with the first positioning plate. The first positioning plate and the second positioning plate are connected by bolts, which is convenient and reliable, and has a good sealing effect.

[0010] As a further improvement of this utility model, rollers are provided on both sides of the bottom of the enclosure to facilitate the disassembly of the side end caps.

[0011] As a further improvement of this utility model, a handle is provided on the outer wall of the outer end plate to facilitate opening the side end cover for filter replacement.

[0012] As a further improvement of this utility model, multiple sets of sliding grooves are arranged parallel to each other inside the main chamber, and each set of sliding grooves is equipped with a filter plate. This allows for the installation of various filter plates inside the main chamber as needed, thereby improving the filtration effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of the easy-to-maintain ventilation and filtration device for human protection according to this utility model.

[0014] Figure 2 This is a schematic diagram showing the connection of the filter plate in the easy-to-maintain ventilation and filtration device for human protection according to this utility model.

[0015] The components include: 1. Main housing; 2. First positioning plate; 3. Slide groove; 4. Front frame; 5. Rear frame; 6. Filter core layer; 7. Positioning column; 8. Outer end plate; 9. Surrounding plate; 10. Inner end plate; 11. Connecting column; 12. Limiting slot; 13. Elastic positioning ring; 14. Second positioning plate; 15. Handle; 16. Roller. Detailed Implementation

[0016] like Figure 1-2 The easily maintainable ventilation and filtration device for civil defense shown includes a housing. The housing includes a main housing 1 and side end covers.

[0017] The main housing 1 has an air inlet and an air outlet at its front and rear ends, respectively. The top and bottom of the main housing 1 are provided with sliding grooves 3, into which filter plates are inserted, forming a sliding connection between the filter plates and the sliding grooves 3. The filter plate includes a front frame 4, a rear frame 5, and a filter core layer 6 sandwiched between the front frame 4 and the rear frame 5. The filter core layer 6 has positioning holes along its edges, and the front frame 4 and the rear frame 5 have positioning posts 7 and positioning grooves corresponding to the positioning holes, respectively. In this embodiment, multiple sets of sliding grooves 3 are arranged parallel to each other within the main housing 1, and each set of sliding grooves 3 contains a filter plate. This allows for the installation of various filter plates within the main housing 1 as needed, improving the filtration effect.

[0018] The side end cover includes an outer end plate 8, a surrounding plate 9, and an inner end plate 10. The open end of the main housing 1 is inserted into the surrounding plate 9, and the end abuts against the inner end plate 10. The outer end plate 8 is detachably connected to the outer end of the surrounding plate 9. A storage layer is formed between the outer end plate 8 and the inner end plate 10. A connecting post 11 is provided on the outer wall of the inner end plate 10 at the position corresponding to the positioning hole of the filter element layer. The storage layer forms a storage space for the spare filter element layer 6. The spare filter element layer 6 can be quickly and flatly stored in it through the connecting post 11. When the filter plate needs to be replaced, the spare filter element layer 6 can be easily taken out by simply opening the outer end plate 8. In special periods such as wartime, the time spent searching for the spare filter element layer 6 in the storage room can be saved, and the process risk can be reduced. An elastic positioning ring 13 is provided on the connecting post 11, so as to limit the spare filter element layer 6 when it is insufficient to fill the entire storage layer, and prevent it from deforming.

[0019] like Figure 1As shown, the main housing 1 and the inner end plate 10 are equipped with limiting slots 12 at the corresponding edges of the filter plate, which effectively fixes the filter plate on both sides, preventing vibration of the filter plate that may occur under the action of the induced draft fan during ventilation filtration, avoiding deformation of the front frame 4 and rear frame 5 of the filter plate, and improving service life. The outer wall of the main housing 1 is equipped with a first positioning plate 2, and the end of the surrounding plate 9 is equipped with a second positioning plate 14 that cooperates with the first positioning plate 2. The first positioning plate 2 and the second positioning plate 14 are connected by bolts, which is convenient, reliable, and has a good sealing effect. The outer wall of the outer end plate 8 is equipped with a handle 15 for easy opening of the side end cover for filter element replacement. To facilitate the opening of the side end cover, rollers 16 are provided on both sides of the bottom of the surrounding plate 9. To avoid the bottom of the first positioning plate 2 rubbing against the ground when the side end cover is opened, the height of the first positioning plate 2 at the bottom is slightly shorter.

[0020] The easy-to-maintain ventilation and filtration device for civil defense in this embodiment has the following filter element replacement process: (1) Disconnect the first positioning plate 2 and the second positioning plate 14, pull the handle 15, and pull out the side end cover as a whole; (2) Pull out the filter plate in the main box 1 and remove the used filter core layer; (3) Remove the outer end plate 8, take out the spare filter core layer 6, and assemble it with the front frame 4 and the rear frame 5 to form a new filter plate; (4) Install the new filter plate into the main box 1; (5) Install the side end cover back into the main box 1.

[0021] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An easy-to-maintain ventilation and filtration device for civil defense, comprising a housing, characterized in that: The housing includes a main housing and side end caps, which are inserted together and fixed with bolts. The main housing has an air inlet and an air outlet at its front and rear ends, respectively. The main housing has sliding grooves at its top and bottom, and a filter plate is inserted into the sliding groove. The filter plate includes a front frame, a rear frame, and a filter core layer sandwiched between the front frame and the rear frame. The filter core layer has positioning holes along its edge, and the front frame and the rear frame have positioning posts and positioning grooves at the positions corresponding to the positioning holes, respectively.

2. The easy-to-maintain ventilation and filtration device for civil defense as described in claim 1, characterized in that: The side end cover includes an outer end plate, a surrounding plate, and an inner end plate. The opening end of the main housing is inserted into the surrounding plate and the end abuts against the inner end plate. The outer end plate is detachably connected to the outer end of the surrounding plate. A storage layer is formed between the outer end plate and the inner end plate. A connecting post is provided on the outer wall of the inner end plate at the position of the positioning hole of the filter layer.

3. The easy-to-maintain ventilation and filtration device for civil defense as described in claim 2, characterized in that: The main housing and inner end plate are provided with limiting slots at the corresponding two sides of the filter plate.

4. The easy-to-maintain ventilation and filtration device for civil defense as described in claim 2, characterized in that: The connecting column is equipped with an elastic positioning ring.

5. The easy-to-maintain ventilation and filtration device for civil defense as described in claim 2, characterized in that: The outer wall of the main box is provided with a first positioning plate, and the end of the enclosure is provided with a second positioning plate that cooperates with the first positioning plate. The first positioning plate and the second positioning plate are connected by bolts.

6. The easy-to-maintain ventilation and filtration device for civil defense as described in claim 5, characterized in that: The bottom sides of the enclosure are equipped with rollers.

7. The easy-to-maintain ventilation and filtration device for civil defense as described in any one of claims 2-6, characterized in that: The outer end plate is provided with a handle.

8. The easy-to-maintain ventilation and filtration device for civil defense as described in any one of claims 2-6, characterized in that: The main housing is provided with multiple sets of sliding grooves spaced parallel to each other, and each set of sliding grooves is provided with a filter plate.

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