High-reliability air filtering structure for civil air defense door

Abstract

The high-reliability air filtering structure for the civil defense door relates to the technical field of civil defense doors and comprises a door frame and a civil defense door body, the civil defense door body is installed on the front side of the door frame, a door handle is installed on the front side of the civil defense door body, and a ventilation opening is formed in the front side of the civil defense door body. And the inner wall of the ventilation opening is in threaded connection with a dustproof filter screen. By the adoption of the structure, when a large amount of dust is accumulated on the surface of the dustproof filter screen, a user can drive the dustproof filter screen to vibrate through the vibration module, under high-frequency vibration, the dust on the dustproof filter screen can fall down along with the dustproof filter screen, and the dust falling into the strip-shaped opening can be collected into the collection box in a unified mode along with the dustproof filter screen. And the collecting box is slidably connected in the collecting groove, so that a user can conveniently take out the collecting box to clean the collecting box in the later period, and meanwhile, the inconvenience caused by the fact that the dustproof filter screen needs to be detached every time the dustproof filter screen is cleaned is also solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil air defense doors, and particularly relates to an air filtering structure for civil air defense doors with high reliability. Background Technique

[0002] Civil air defense doors, that is, the doors at the entrances and exits of civil air defense projects, belong to civil air defense protection equipment and are used to protect people from dangerous factors such as air raids, fires, and chemical substance leaks in case of emergencies. Since some civil air defense doors need to have a ventilation structure, in order to improve the ventilation effect, an air filtering structure is installed on the civil air defense doors.

[0003] Chinese Patent with the publication number of "CN212985025U" discloses a civil air defense door with ventilation and filtering functions, including a door frame. A door panel is rotatably installed in the door frame. A door handle is installed on the door panel. A rectangular hole is opened on one side of the door panel. An activated carbon plate and two dust-proof filters are fixedly installed in the rectangular hole. The two dust-proof filters are symmetrically arranged on both sides of the activated carbon plate. Two ventilation fans are fixedly installed on the inner wall of one side of the rectangular hole. The two dust-proof filters are located between the two ventilation fans.

[0004] However, there are still some deficiencies in this filtering structure. Although the dust-proof filter can effectively filter the flowing air, there is a large amount of dust in the air. After a long time of filtering, the dust will adsorb on the surface of the dust-proof filter. Every time the dust needs to be cleaned, the user has to disassemble the dust-proof filter, which is very inconvenient. At the same time, the dust-proof filter with a large amount of adsorbed dust will also affect the air filtering efficiency. Content of the Utility Model

[0005] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide an air filtering structure for civil air defense doors with high reliability to solve the problems raised in the above background technique.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] An air filtration structure for a civil air defense door with high reliability, including a door frame and a civil air defense door body. The civil air defense door body is installed on the front side of the door frame. A door handle is installed on the front side of the civil air defense door body. A ventilation opening is provided on the front side of the civil air defense door body. A dust-proof filter net is threadedly connected to the inner wall of the ventilation opening, and the dust-proof filter net covers the inner side of the ventilation opening. A second installation groove is provided at the top end inside the ventilation opening, and a vibration module is installed at the top end inside the second installation groove. The bottom end of the vibration module is in contact with the top end of the dust-proof filter net. A strip-shaped opening is provided at the bottom end inside the ventilation opening, and the position of the strip-shaped opening corresponds to the position of the dust-proof filter net. A collection groove is provided on the front side of the civil air defense door body, and the strip-shaped opening communicates with the collection groove. A collection box is slidably connected to the inner wall of the collection groove, and the position of the collection box is symmetrical to the position of the strip-shaped opening. A protection plate is slidably connected to the front side of the civil air defense door body, and the protection plate covers the front side of the ventilation opening.

[0008] As a preferred technical solution, a fixing block is fixedly connected to the front side of the dust-proof filter net, and the other side of the fixing block is in contact with the inner wall of the ventilation opening. A screw hole is provided on one side of the fixing block, and the screw hole penetrates through the fixing block and the inner wall of the ventilation opening. A bolt is threadedly connected to the inner side of the screw hole, and the other side of the bolt is threadedly connected to the inside of the civil air defense door body through the screw hole. The dust-proof filter net is threadedly connected to the inner wall of the ventilation opening through the fixing block, the screw hole and the bolt.

[0009] As a preferred technical solution, a first sliding groove matching the dust-proof filter net is provided on the inner wall of the ventilation opening, and the outer side of the dust-proof filter net is slidably connected to the inner wall of the ventilation opening through the first sliding groove.

[0010] As a preferred technical solution, a second sliding groove matching the collection box is provided on the inner wall of the collection groove, and the collection box is slidably connected to the inner wall of the collection groove through the second sliding groove. A convex block is fixedly connected to the front side of the collection box, and the shape of the convex block is an inverted cone.

[0011] As a preferred technical solution, a first installation groove is provided at the bottom end inside the collection groove, and a first magnet is fixedly connected to the bottom end inside the first installation groove. The first magnet covers the inner side of the first installation groove, and the position of the top end of the first magnet is in contact with the position of the bottom end of the collection box.

[0012] As a preferred technical solution, a third sliding groove matching the protection plate is provided on the front side of the civil air defense door body, and the protection plate is slidably connected to the front side of the civil air defense door body through the third sliding groove. A handle is fixedly connected to the front side of the protection plate, and the shape of the handle is concave, and the shape of the corners of the handle is arc-shaped. A second magnet is fixedly connected to the front side of the civil air defense door body, and the position of the second magnet corresponds to the position of the protection plate.

[0013] As a preferred technical solution, a rectangular opening is provided on the front side of the protection plate, and the rectangular opening communicates with the ventilation opening. A transparent glass is fixedly connected to the inside of the rectangular opening, and the transparent glass covers the inside of the rectangular opening. The position of the transparent glass is symmetrical to the position of the dust-proof filter net.

[0014] In summary, the present utility model mainly has the following beneficial effects:

[0015] First, during use, due to the opening of the ventilation openings, it is beneficial for the civil air defense door to effectively ventilate and dissipate heat. Its dust-proof filter net can effectively filter the flowing air. When there is a large amount of dust accumulated on the surface of the dust-proof filter net, the user can drive the dust-proof filter net to vibrate through the vibration module. Under high-frequency vibration, the dust on the dust-proof filter net will fall off, and the dust that has fallen into the strip-shaped openings will also be uniformly collected into the collection box. Since the collection box is slidably connected to the collection groove, it is also beneficial for the user to later take out the collection box for cleaning, and at the same time, it solves the inconvenience caused by having to disassemble the dust-proof filter net every time it is cleaned;

[0016] Second, due to the presence of the protection plate, when it is necessary to seal the ventilation openings, the user can slide the protection plate to a position corresponding to the second magnet. Under the adsorption of the second magnet, it can prevent the protection plate from falling off, and the protection plate can also effectively seal and protect the front side of the ventilation openings. Due to the opening of the rectangular openings, the user can directly view the inside of the ventilation openings through the transparent glass without opening the protection plate, which is beneficial for the user to always observe the condition of the dust-proof filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the civil air defense door body of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 is an enlarged schematic structural diagram of part A of;

[0020] Figure 4 is a schematic structural diagram of the inside of the ventilation opening of the present utility model.

[0021] Reference numerals: 1, door frame; 2, civil air defense door body; 3, ventilation opening; 4, dust-proof filter net; 5, first sliding groove; 6, fixing block; 7, screw hole; 8, bolt; 9, strip-shaped opening; 10, collection groove; 11, first installation groove; 12, first magnet; 13, second sliding groove; 14, collection box; 15, convex block; 16, third sliding groove; 17, protection plate; 18, rectangular opening; 19, transparent glass; 20, handle; 21, second magnet; 22, door handle; 23, second installation groove; 24, vibration module. DETAILED DESCRIPTION OF THE EMBODIMENTS Embodiment

[0022] Refer to Figures 1 to 4, An air filtration structure for a civil air defense door with high reliability in this embodiment includes a door frame 1 and a civil air defense door body 2. The civil air defense door body 2 is installed on the front side of the door frame 1. A door handle 22 is installed on the front side of the civil air defense door body 2. A ventilation opening 3 is opened on the front side of the civil air defense door body 2. A dust-proof filter screen 4 is threadedly connected to the inner wall of the ventilation opening 3. The dust-proof filter screen 4 covers the inside of the ventilation opening 3. A second installation groove 23 is opened at the inner top end of the ventilation opening 3. A vibration module 24 is installed at the inner top end of the second installation groove 23. The bottom end of the vibration module 24 is in contact with the top end of the dust-proof filter screen 4. A strip-shaped opening 9 is opened at the inner bottom end of the ventilation opening 3. The position of the strip-shaped opening 9 corresponds to the position of the dust-proof filter screen 4. A collection groove 10 is opened on the front side of the civil air defense door body 2. The strip-shaped opening 9 communicates with the collection groove 10. A collection box 14 is slidably connected to the inner wall of the collection groove 10. The position of the collection box 14 is symmetrical to the position of the strip-shaped opening 9. A protection plate 17 is slidably connected to the front side of the civil air defense door body 2. The protection plate 17 covers the front side of the ventilation opening 3. During use, due to the opening of the ventilation opening 3, it is beneficial for the civil air defense door to effectively ventilate and dissipate heat. Its dust-proof filter screen 4 can effectively filter the flowing air. When there is a lot of dust accumulated on the surface of the dust-proof filter screen 4, the user can drive the dust-proof filter screen 4 to vibrate through the vibration module 24. The vibration module 24 is driven by a vibration motor. Under high-frequency vibration, the dust on the dust-proof filter screen 4 will fall off. The dust that falls into the strip-shaped opening 9 will also be uniformly collected into the collection box 14. Since the collection box 14 is slidably connected in the collection groove 10, it is also beneficial for the user to take out the collection box 14 for cleaning later.

[0023] Reference Figures 1 to 3 , A fixing block 6 is fixedly connected to the front side of the dust-proof filter screen 4. The other side of the fixing block 6 is in contact with the inner wall of the ventilation opening 3. A screw hole 7 is opened on one side of the fixing block 6. The screw hole 7 penetrates through the fixing block 6 and the inner wall of the ventilation opening 3. A bolt 8 is threadedly connected to the inner side of the screw hole 7. The other side of the bolt 8 is threadedly connected to the inside of the civil air defense door body 2 through the screw hole 7. The dust-proof filter screen 4 is threadedly connected to the inner wall of the ventilation opening 3 through the fixing block 6, the screw hole 7 and the bolt 8. A first sliding groove 5 matching the dust-proof filter screen 4 is opened on the inner wall of the ventilation opening 3. The outer side of the dust-proof filter screen 4 is slidably connected to the inner wall of the ventilation opening 3 through the first sliding groove 5. Due to the existence of the bolt 8, the screwing in of the bolt 8 can effectively fix the position of the dust-proof filter screen 4 and prevent its position from shifting. When the dust-proof filter screen 4 needs to be disassembled later, unscrew the bolt 8 from the screw hole 7, and then pull it out through the first sliding groove 5. This is also beneficial for the user to maintain or replace the dust-proof filter plate later.

[0024] Reference Figure 1 With Figure 2 And Figure 4, a second chute 13 matching the collection box 14 is provided on the inner wall of the collection tank 10. The collection box 14 is slidably connected to the inner wall of the collection tank 10 through the second chute 13. A convex block 15 is fixedly connected to the front side of the collection box 14. The shape of the convex block 15 is an inverted cone. A first installation groove 11 is provided at the inner bottom end of the collection tank 10. A first magnet 12 is fixedly connected to the inner bottom end of the first installation groove 11. The first magnet 12 covers the inner side of the first installation groove 11. The position of the top end of the first magnet 12 is in contact with the position of the bottom end of the collection box 14. The bottom end of the collection box 14 is made of iron. When the bottom end of the collection box 14 is in contact with the top end of the first magnet 12, the two will adsorb to each other, thereby avoiding the displacement of the collection box 14. The handle 20 can provide a grasping point for the user, which is also beneficial for the user to pull out the collection box 14 later.

[0025] Reference Figure 1 , a third chute 16 matching the protection plate 17 is provided on the front side of the civil air defense door body 2. The protection plate 17 is slidably connected to the front side of the civil air defense door body 2 through the third chute 16. A handle 20 is fixedly connected to the front side of the protection plate 17. The shape of the handle 20 is concave, and the shape of the corners of the handle 20 is arc-shaped. A second magnet 21 is fixedly connected to the front side of the civil air defense door body 2. The position of the second magnet 21 corresponds to the position of the protection plate 17. The rear side of the protection plate 17 is made of iron. Due to the presence of the protection plate 17, when it is necessary to seal the ventilation opening 3, the user can slide the protection plate 17 to a position corresponding to the second magnet 21. Under the adsorption of the second magnet 21, the protection plate 17 can be prevented from falling. The protection plate 17 can also effectively seal and protect the front side of the ventilation opening 3, thereby effectively improving the safety and reliability of the air filtration structure.

[0026] Reference Figure 1 , a rectangular opening 18 is provided on the front side of the protection plate 17. The rectangular opening 18 communicates with the ventilation opening 3. A transparent glass 19 is fixedly connected to the inner side of the rectangular opening 18. The transparent glass 19 covers the inner side of the rectangular opening 18. The position of the transparent glass 19 is symmetrical to the position of the dust filter screen 4. Due to the opening of the rectangular opening 18, the user can directly view the inside of the ventilation opening 3 through the transparent glass 19 without opening the protection plate 17, which is beneficial for the user to observe the condition of the dust filter screen 4 at all times.

[0027] Principle of use and advantages: During use, due to the opening of the ventilation opening 3, it is beneficial for the civil air defense door to effectively ventilate and dissipate heat. Its dust-proof filter net 4 can effectively filter the flowing air. When there is a large amount of dust accumulation on the surface of the dust-proof filter net 4, the user can drive the dust-proof filter net 4 to vibrate through the vibration module 24. The vibration module 24 is driven by a vibration motor. Under high-frequency vibration, the dust on the dust-proof filter net 4 will fall off, and the dust falling into the strip-shaped opening 9 will also be uniformly collected into the collection box 14. Since the collection box 14 is slidably connected to the collection groove 10, it is also beneficial for the user to take out the collection box 14 for cleaning later. Due to the existence of the bolt 8, the screwing of the bolt 8 can effectively fix the position of the dust-proof filter net 4 and prevent its position from shifting. When the dust-proof filter net 4 needs to be disassembled later, unscrew the bolt 8 from the screw hole 7 and then pull it out through the first chute 5, which is also beneficial for the user to maintain or replace the dust-proof filter plate later. The bottom end of the collection box 14 is made of iron. When the bottom end of the collection box 14 is in contact with the top end of the first magnet 12, the two will adsorb each other, thus preventing the collection box 14 from shifting. The handle 20 can provide a grasping point for the user, which is also beneficial for the user to pull out the collection box 14 later. Due to the existence of the protection plate 17, when the ventilation opening 3 needs to be sealed, the user can slide the protection plate 17 to the position corresponding to the second magnet 21. Under the adsorption of the second magnet 21, the protection plate 17 can be prevented from falling off. The protection plate 17 can also effectively seal and protect the front side of the ventilation opening 3, thus effectively improving the safety and reliability of the air filtration structure. Due to the opening of the rectangular opening 18, the user can directly view the inside of the ventilation opening 3 through the transparent glass 19 without opening the protection plate 17, which is beneficial for the user to observe the condition of the dust-proof filter net 4 at all times. If the dust-proof filter net 4 is damaged, the staff can also be informed in time, which can further improve the safety protection of the dust-proof filter net 4.

Claims

1. An air filtration structure for a civil air defense door with high reliability, comprising a door frame (1) and a civil air defense door body (2), characterized in that: A human air defense door body (2) is installed on the front side of the door frame (1), a door handle (22) is installed on the front side of the human air defense door body (2), a vent (3) is provided on the front side of the human air defense door body (2), a dust filter (4) is threadedly connected to the inner wall of the vent (3), the dust filter (4) covers the inner side of the vent (3), a second installation groove (23) is provided at the inner top end of the vent (3), a vibration module (24) is installed at the inner top end of the second installation groove (23), the bottom end of the vibration module (24) is aligned with the top end of the dust filter (4), and the vibration module (24) is provided at the inner top end of the second installation groove (23). A strip opening (9) is provided at the inner bottom end of the ventilation port (3), and the position of the strip opening (9) corresponds to the position of the dust filter (4). A collecting groove (10) is provided on the front side of the civil air defense door body (2), and the strip opening (9) is communicated with the collecting groove (10). A collecting box (14) is slidably connected to the inner wall of the collecting groove (10), and the position of the collecting box (14) is symmetrical to the position of the strip opening (9). A protective plate (17) is slidably connected to the front side of the civil air defense door body (2), and the protective plate (17) covers the front side of the ventilation port (3).

2. According to claim 1, an air filter structure for civil air defense door with high reliability is characterized in that: The front side of the dust filter (4) is fixedly connected to a fixing block (6), the other side of the fixing block (6) is in contact with the inner wall of the vent (3), one side of the fixing block (6) is provided with a screw hole (7), the screw hole (7) penetrates the fixing block (6) and the inner wall of the vent (3), the inner side of the screw hole (7) is threadedly connected to a bolt (8), the other side of the bolt (8) is threadedly connected to the inside of the civil air defense door body (2) through the screw hole (7), and the dust filter (4) is threadedly connected to the inner wall of the vent (3) through the fixing block (6), the screw hole (7) and the bolt (8).

3. The air filter structure for civil air defense door with high reliability according to claim 2 is characterized in that: A first sliding groove (5) matching the dustproof filter (4) is provided on the inner wall of the ventilation opening (3); the outer side of the dustproof filter (4) is slidably connected to the inner wall of the ventilation opening (3) via the first sliding groove (5).

4. The air filter structure for civil air defense door with high reliability according to claim 1 is characterized in that: A second slide groove (13) matching the collection box (14) is provided on the inner wall of the collection trough (10); the collection box (14) is slidably connected to the inner wall of the collection trough (10) via the second slide groove (13); a protrusion (15) is fixedly connected to the front side of the collection box (14); the protrusion (15) is in the shape of an inverted cone.

5. The air filter structure for civil air defense door with high reliability according to claim 4 is characterized in that: A first mounting groove (11) is provided at the inner bottom end of the collecting groove (10), a first magnet (12) is fixedly connected to the inner bottom end of the first mounting groove (11), the first magnet (12) covers the inner side of the first mounting groove (11), and the top end of the first magnet (12) is in contact with the bottom end of the collecting box (14).

6. The air filter structure for civil air defense door with high reliability according to claim 1 is characterized in that: The front side of the civil air defense door body (2) is provided with a third slide groove (16) matching with the protective plate (17); the protective plate (17) is slidably connected to the front side of the civil air defense door body (2) via the third slide groove (16); the front side of the protective plate (17) is fixedly connected with a handle (20); the shape of the handle (20) is concave; the shape of the corner of the handle (20) is arc-shaped; the front side of the civil air defense door body (2) is fixedly connected with a second magnet (21); the position of the second magnet (21) corresponds to the position of the protective plate (17).

7. The air filter structure for civil air defense door with high reliability according to claim 6 is characterized in that: A rectangular opening (18) is provided on the front side of the protective plate (17), the rectangular opening (18) being in communication with the ventilation opening (3), a transparent glass (19) being fixedly connected to the inner side of the rectangular opening (18), the transparent glass (19) covering the inner side of the rectangular opening (18), and the position of the transparent glass (19) being symmetrical with the position of the dust filter (4).

Images