Civil air defense door with good sealing effect

Abstract

The utility model discloses a civil air defense door with a good sealing effect, and belongs to the technical field of civil air defense doors, the civil air defense door comprises a door frame arranged on a building wall and a door leaf hinged to the door frame, and an air bag component used for improving the sealing performance of the door frame and the door leaf is arranged in a groove of the door frame; the airbag member includes an airbag pocket mounted within the door frame recess. According to the civil air defense door with the good sealing effect, the sunken part is formed in the door frame and used for providing the mounting space, and the air bag is arranged between the sunken part of the door frame and the door leaf, so that after the air bag is extruded by the door leaf, the air bag can be inflated, the edge of the closed door leaf is filled with the air bag, and the sealing effect of the door leaf is improved; and meanwhile, an extrusion strip located on the other side, away from the door leaf, of the air bag is arranged, the extrusion strip is extruded through an arranged swing rod, so that the air bag is further extruded, the attaching sealing performance of the air bag to the door leaf is improved, and the sealing effect of the device is improved.

Description

Technical Field

[0001] The present application relates to the field of civil air defense doors, and in particular to a civil air defense door with good sealing effect. Background Art

[0002] Civil defense doors are a type of protective facility used to protect personnel from external threats or dangers. Civil defense doors are usually made of high-strength materials, have a sturdy structure, can withstand external impact and pressure, and are designed to protect buildings or facilities to ensure the safety and security of personnel.

[0003] Referring to the utility model with announcement number CN219672498U, a double-leaf civil defense door with good airtightness includes a door frame, a left door leaf, a right door leaf, a hand wheel rotatably arranged on the left door leaf, and a push rod that slides left and right driven by the hand wheel, a pushing assembly is fixedly arranged on the push rod, an inflation assembly is fixedly arranged on the left door leaf, and a sealing assembly is also fixedly arranged on one side of the left door leaf. The inflation assembly is used to seal the left door leaf and the right door leaf after inflating the sealing assembly with the cooperation of the pushing assembly when the left door leaf and the right door leaf are closed, so that after the left door leaf and the right door leaf are closed, the airtightness between the left door leaf and the right door leaf is improved.

[0004] The sealing of the civil air defense door is mainly achieved by sealing the top surface of the civil air defense door and the connection between the double-leaf doors with a sealing strip. The civil air defense door and the door frame are movable by means of a hinge. However, there is no seal between the hinge between the door frame and the civil air defense door, and there is still room for improvement. In this regard, a civil air defense door with good sealing effect is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a civil air defense door with good sealing effect, which has the advantages of strengthening the sealing of the connection between the door frame and the door leaf, and improving the overall sealing of the civil air defense door.

[0006] In summary, the present application provides the following technical solutions: a civil air defense door with good sealing effect, comprising a door frame arranged on a building wall, a door leaf hinged to the door frame, and an airbag component for improving the sealing of the door frame and the door leaf arranged in a groove of the door frame;

[0007] The airbag component includes an airbag bag installed in the recess of the door frame, an airbag mounting seat for fixing the position of the airbag bag, and an extension belt extending between the contact surface of the door leaf and the door frame;

[0008] A squeezing mechanism for assisting the airbag bag to gather is also arranged in the door frame.

[0009] By adopting the above technical solution, the gap between the door leaf and the door frame can be filled and closed by the airbag bag, thereby improving the sealing effect of the door leaf in all directions.

[0010] Furthermore, the extension belt includes a fixing belt fixedly connected to the airbag mounting seat, an air bag sewn to the fixing belt, and an air pipe connected between the air bag and the airbag bag.

[0011] By adopting the above technical solution, the extension belt can deliver air to the airbag bag after being squeezed, so that the airbag bag can be adapted to the closing of the door leaf and inflated at the same time.

[0012] Furthermore, a stop rod is fixedly mounted on the door frame.

[0013] By adopting the above technical solution, the blocking rod can block and limit the position of the airbag bag, thereby improving the fit of the airbag bag with respect to the door frame.

[0014] Furthermore, the extrusion mechanism includes a dual-axis motor fixedly installed in the door frame, a threaded rod connected to the output ends of the dual-axis motor, an extrusion strip slidably installed in the groove of the door frame, and two connecting pieces connected between the extrusion strip and the threaded rod.

[0015] By adopting the above technical solution, the airbag bag can be squeezed from the opposite direction of the door leaf, thereby improving the fit of the airbag bag with respect to the door frame.

[0016] Furthermore, the thread directions of the upper and lower threaded rods are opposite, and the end of the connecting piece is threadedly connected to the threaded rod.

[0017] By adopting the above technical solution, the two connecting members can be pulled to move in opposite directions by rotating the threaded rod.

[0018] Furthermore, the connecting member includes a threaded tube threadedly connected to the threaded rod, a connecting seat fixedly installed on the extrusion strip, and a swing rod hinged between the threaded tube and the connecting seat.

[0019] By adopting the above technical solution, the inclination angle of the swing rod can be changed to achieve the pushing of the extrusion bar.

[0020] Furthermore, a locking structure for closing the door leaf is provided on the surface of the door leaf.

[0021] By adopting the above technical solution, the door leaf can be easily sealed after closing.

[0022] The civil air defense door with good sealing effect is provided with a recess in the door frame to provide an installation space, and an airbag bag is provided between the recess of the door frame and the door leaf, so that after the airbag is squeezed by the door leaf, the airbag bag can be inflated, so that the edge of the door leaf after closing is filled with the airbag bag, so that the sealing effect of the door leaf is improved. At the same time, an extrusion strip is provided on the other side of the airbag bag away from the door leaf, and the airbag bag is further squeezed by squeezing the extrusion strip through a swing rod, thereby improving the fit and sealing of the airbag bag to the door leaf and improving the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the overall structure of this application;

[0024] Figure 2 It is a schematic diagram of the overall structure of the airbag structure of the present application;

[0025] Figure 3 This is a bottom view of the top surface structure of the door frame of the present application;

[0026] Figure 4 It is a partial stereoscopic diagram of the connector of the present application.

[0027] Description of reference numerals:

[0028] 1. Door frame; 2. Door leaf; 3. Locking structure; 4. Airbag bag; 5. Airbag mounting seat; 6. Fixing belt; 7. Airbag; 8. Air pipe; 9. Stop rod; 10. Extrusion strip; 11. Dual-axis motor; 12. Threaded rod; 13. Threaded pipe; 14. Connecting seat; 15. Swing rod. DETAILED DESCRIPTION

[0029] See also Figure 1 In this embodiment, a civil air defense door with good sealing effect includes a door frame 1 arranged on the building wall, and a door leaf 2 hinged to the door frame 1. The door leaf 2 is an outward-pushing double-opening door. The inner surface of the door frame 1 is recessed and corresponds to the door leaf 2, so that the door leaf 2 can be embedded in the door frame 1 to improve the sealing effect of the connection with the door frame 1.

[0030] It should be noted that a locking structure 3 for closing the door leaf 2 is provided on the surface of the door leaf 2. The locking structure 3 is a locking structure of an existing civil air defense door and will not be described in detail herein.

[0031] See also Figure 1-2In this embodiment, an airbag component for improving the airtightness of the door frame 1 and the door leaf 2 is provided in the groove of the door frame 1. The airbag component includes an airbag bag 4 installed in the depression of the door frame 1, an airbag mounting seat 5 for fixing the position of the airbag bag 4, and an extension belt extending between the contact surface of the door leaf 2 and the door frame 1. The outer walls at both ends of the airbag bag 4 are fixedly connected to the airbag mounting seat 5, so that the end position of the airbag bag 4 is stable, and at the same time it can expand and fit in the gap between the door leaf 2 and the door frame 1, thereby improving the airtightness after the door leaf 2 is closed.

[0032] See also Figure 2-3 In this embodiment, the extension belt includes a fixing belt 6 fixedly connected to the airbag mounting seat 5, an airbag 7 sewn on the fixing belt 6, and an air tube 8 connected between the airbag 7 and the airbag bag 4. By squeezing the airbag 7, the air in the airbag 7 can be squeezed into the interior of the airbag bag 4, so that the airbag bag 4 is inflated.

[0033] Specifically, when the door leaf 2 is closed, the airbag 7 can be squeezed by the end face of the door leaf 2 fitting into the groove of the door frame 1, thereby enabling the airbag bag 4 to be inflated. At the same time, the airbag is made of high-strength polyester fiber to ensure that it can withstand high pressure under the squeezing of the door leaf 2 and has a wear-resistant effect.

[0034] It should be noted that a stopper rod 9 is also fixedly mounted on the door frame 1 , and the stopper rod 9 is used to block and limit the position of the airbag bag 4 , thereby improving the fit of the airbag bag 4 relative to the door frame 1 .

[0035] See also Figure 1 and Figure 4 In this embodiment, a squeezing mechanism for assisting the airbag 4 in gathering is also provided in the door frame 1, and the squeezing mechanism includes a dual-axis motor 11 fixedly installed in the door frame 1, a threaded rod 12 connected to the output ends of the dual-axis motor 11, an squeezing strip 10 slidably installed in the groove of the door frame 1, and two connecting members connected between the squeezing strip 10 and the threaded rod 12.

[0036] It should be noted that the thread directions of the upper and lower threaded rods 12 are opposite, and the ends of the connectors are threadedly connected to the threaded rods 12 , so that the two connectors can be pulled to move in opposite directions by rotating the threaded rods 12 .

[0037] See also Figure 1 and Figure 4In this embodiment, the connecting member includes a threaded tube 13 threadedly connected to the threaded rod 12, a connecting seat 14 fixedly installed on the extrusion strip 10, and a swing rod 15 hinged between the threaded tube 13 and the connecting seat 14, wherein one end of the swing rod 15 is rotatably connected to the connecting seat 14, and the other end is rotatably connected to the outside of the threaded tube 13. After the threaded tube 13 moves relative to the threaded rod 12, the inclination angle of the swing rod 15 can be changed to push the extrusion strip 10.

[0038] A recess is provided in the door frame 1 to provide an installation space, and the airbag bag 4 is provided between the recess of the door frame 1 and the door leaf 2. After the airbag 7 is squeezed by the door leaf 2, the airbag bag 4 can be inflated, so that the edge of the closed door leaf 2 is filled with the airbag bag 4, thereby improving the sealing effect of the door leaf 2. At the same time, an extrusion strip 10 is provided on the other side of the airbag bag 4 away from the door leaf 2, and the extrusion strip 10 is squeezed by a swing rod 15 so that the airbag bag 4 is further squeezed, thereby improving the fit and sealing of the airbag bag 4 to the door leaf and improving the sealing effect of the device.

[0039] The working principle of the above embodiment is:

[0040] When the civil air defense door is closed, the door leaf 2 is rotated relative to the door frame 1 so that the door leaf 2 fits into the recess of the door frame 1 for closing. During the closing process of the door leaf 2, the door leaf 2 squeezes the air bag 7 located in the recess of the door frame 1, so that the air in the air bag 7 is squeezed and filled into the air bag 4 along the air pipe 8 connected between the air bag 7 and the air bag 4. At this time, the air bag 4 is inflated and expanded. The air bag 4 is restricted by the stop rod 9 to extend and fill the gap between the door leaf 2 and the door frame 1, so that the closing and sealing effect of the door leaf 2 is improved. At the same time, the dual-axis motor 11 can be controlled so that the dual-axis motor 11 drives the threaded rod 12 to rotate through the reducer. The threaded rod 12 is threadedly engaged with the threaded tube 13 during rotation. The threaded tube 13 moves relative to the threaded rod 12 and changes the angle of the swing rod 15 connected between the connecting seat 14 and the threaded tube 13, and makes the extrusion strip 10 sliding in the door frame 1 move toward the air bag 4, further improving the sealing effect of the air bag 4 on the door leaf 2.

Claims

1. A civil air defense door with good sealing effect, comprising a door frame (1) arranged on a building wall, and a door leaf (2) hinged to the door frame (1), characterized in that: An airbag component for improving the airtightness of the door frame (1) and the door leaf (2) is arranged in the groove of the door frame (1); The airbag component comprises an airbag bag (4) installed in a recess of the door frame (1), an airbag mounting seat (5) for fixing the position of the airbag bag (4), and an extension belt extending between the contact surface of the door leaf (2) and the door frame (1); A squeezing mechanism for assisting the airbag bag (4) to gather is also provided in the door frame (1).

2. The airtight door according to claim 1, characterized in that: The extension belt comprises a fixing belt (6) fixedly connected to the airbag mounting seat (5), an air bag (7) sewn to the fixing belt (6), and an air pipe (8) connected between the air bag (7) and the air bag (4).

3. The airtight door according to claim 1, characterized in that: A blocking rod (9) is also fixedly mounted on the door frame (1).

4. The civil air defense door with good sealing effect according to claim 1, characterized in that: The extrusion mechanism comprises a dual-axis motor (11) fixedly mounted in the door frame (1), a threaded rod (12) connected to the output ends of both ends of the dual-axis motor (11), an extrusion strip (10) slidably mounted in a groove of the door frame (1), and two connecting members connected between the extrusion strip (10) and the threaded rod (12).

5. The airtight door according to claim 4, characterized in that: The thread directions of the upper and lower threaded rods (12) are opposite, and the end of the connecting piece is threadedly connected to the threaded rod (12).

6. The civil air defense door with good sealing effect according to claim 5, characterized in that: The connecting member comprises a threaded tube (13) threadedly connected to the threaded rod (12), a connecting seat (14) fixedly mounted on the extruded strip (10), and a swinging rod (15) hinged between the threaded tube (13) and the connecting seat (14).

7. The civil air defense door with good sealing effect according to claim 1, characterized in that: A locking structure (3) for closing the door leaf (2) is provided on the surface of the door leaf (2).

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