Ramp inward-opening type double-leaf protective air-tight door

By designing components such as grooves, elastic airbags and pressure springs in the double-fan protective sealed door, the fit and angle adjustment of the extension plate and the ramp are achieved, which solves the problem of reduced sealing effect after the ramp settles, and improves the flexibility of the sealed door and sealing effect.

CN222991407UActive Publication Date: 2025-06-17GUANGDONG ZHONGAN CIVIL AIR DEFENSE CO LTD
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Patent Information

Application Number
CN202421563370.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-06-17
Estimated Expiration
2034-07-04

AI Technical Summary

Technical Problem

After the existing double-fan protective sealed door settles, the slope changes lead to a reduction in the sealing effect, making it difficult to adjust the angle according to the slope.

Method used

A double-fan protective sealed door inside the ramp is designed. By setting up grooves, elastic airbags, connecting blocks, sliding grooves and pressure springs, the extension plate fits the ramps, and through the matching of the elastic airbags and connecting blocks, the angle of the extension plate is adjusted to adapt to slope changes.

Benefits of technology

This design improves the flexibility and sealing effect of the double-fan protective sealed door, and can adjust the angle of the extension plate according to the different slopes of the ramp, which enhances the scope of use of the protective sealed door.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of double-leaf protective air-tight doors, and discloses a ramp inward-opening type double-leaf protective air-tight door which comprises an air-tight assembly, an adjusting assembly is arranged in the air-tight assembly and comprises a groove, an elastic air bag adheres to the interior of the groove, a connecting block adheres to the lower portion of the elastic air bag, and the connecting block is connected with the groove. A first sliding groove is formed in the lower portion of the connecting block, a first sliding block is slidably connected into the first sliding groove, a connecting rod is hinged to the lower portion of the first sliding block, an extending plate is hinged to the lower portion of the connecting rod, a baffle is hinged to the front face of the extending plate, and a second sliding groove is formed in the inner wall of the groove. According to the ramp inward-opening type double-leaf protective air-tight door, a second sliding block compresses a pressure spring, meanwhile, elastic recovery of the pressure spring pushes an extension plate to be attached to the ramp, and elastic recovery of an elastic air bag pushes a connecting rod to move, so that the connecting rod pushes the extension plate to be attached to the ramp; the angle of the extension plate can be conveniently adjusted according to different gradients of ramps, and the use range of the protective airtight door is widened.
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Description

Technical Field

[0001] The utility model relates to the technical field of double - leaf protective airtight doors, in particular to a double - leaf protective airtight door with an inward - opening ramp type. Background Technique

[0002] The protective airtight door is also known as a civil air defense door. The civil air defense door is the door at the entrance of the people's air defense project. The classification of civil air defense doors is relatively distinct, including ordinary single - leaf and double - leaf protective airtight doors and airtight doors, live - threshold single - leaf and double - leaf protective airtight doors and airtight doors, etc. It has two functions of blocking shock waves and isolating poisonous agents. However, when installing existing double - leaf protective airtight doors, most of them need to be customized according to the slope of the ramp. During use, the ramp may settle, resulting in a change in the slope, which reduces the sealing effect of the double - leaf protective airtight door. Content of the Utility Model

[0003] (1) Technical Problem to be Solved

[0004] The purpose of the utility model is to provide a double - leaf protective airtight door with an inward - opening ramp type to solve the problem that the double - leaf protective airtight door is not convenient to adjust the angle according to the slope in the above - mentioned background technique.

[0005] (2) Technical Solution

[0006] To achieve the above purpose, the utility model provides the following technical solution: A double - leaf protective airtight door with an inward - opening ramp type, including a sealing component. An adjusting component is arranged inside the sealing component, and the adjusting component includes a groove. An elastic airbag is bonded inside the groove, and a connecting block is bonded under the elastic airbag. A sliding groove I is opened under the connecting block, and a slider I is slidably connected inside the sliding groove I. The slider I is hinged with a connecting rod below, and the connecting rod is hinged with an extension plate below. A baffle is hinged on the front surface of the extension plate. A sliding groove II is opened on the inner wall of the groove, and a pressure spring is fixedly connected inside the sliding groove II. A slider II is fixedly connected under the pressure spring, and the front surface of the slider II is fixedly connected with the baffle. A sealing component is arranged under the sealing component.

[0007] Preferably, the sealing component includes a protective airtight door frame. A protective airtight door I is rotatably connected inside the protective airtight door frame. A control handle is rotatably connected on the front surface of the protective airtight door I. One side of the protective airtight door I is snap - connected with a protective airtight door II, and one side of the protective airtight door II is rotatably connected with the protective airtight door frame.

[0008] Preferably, the groove is opened below the protective airtight door I. One end of the extension plate is rotatably connected with the lower part of the protective airtight door frame, and the extension plate is a telescopic plate.

[0009] Preferably, the baffle is slidably connected with the protective airtight door frame through the slider II, and two slider IIs are symmetrically arranged along the center of the baffle.

[0010] Preferably, the sealing assembly includes a receiving groove, and the receiving groove is opened below the protective and sealed door frame, and the receiving groove is opened on the front side of the groove.

[0011] Preferably, a sealing airbag is snap-connected in the receiving groove, and a sealing rubber pad is bonded under the sealing airbag.

[0012] Preferably, a clamping block is overlapped on the front side of the sealing airbag, and a screw rod is rotatably connected to the front side of the clamping block, and the screw rod is rotatably connected to the front side of the protective and airtight door frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The ramp-opening double-leaf protective airtight door is provided with grooves, elastic airbags, connecting blocks, a slide groove 1, a slider 1, a connecting rod, an extension plate, a baffle plate, a slider 2, a slide groove 2 and a pressure spring. By closing the protective airtight door 1, the extension plate is overlapped with the ramp, so that the extension plate pushes the baffle plate to move along the slide groove 2 through the slider 2, so that the slider 2 compresses the pressure spring, and at the same time, the elastic recovery of the pressure spring pushes the extension plate to fit the ramp, and the elastic recovery of the elastic airbag pushes the connecting rod to move, so that the connecting rod pushes the extension plate to fit the ramp, so that the angle of the extension plate can be adjusted according to the different slopes of the ramp, thereby increasing the use range of the protective airtight door;

[0015] 2. The ramp-opening double-leaf protective airtight door is provided with a storage groove, a sealing airbag, a sealing rubber pad, a clamping block and a screw rod. First, the old sealing airbag is disassembled by rotating the screw rod, and then the sealing airbag is engaged with the storage groove. Then the screw rod is rotated so that the screw rod pushes the clamping block to clamp the sealing airbag, thereby completing the replacement of the sealing airbag to ensure the sealing effect of the protective airtight door and reduce the difficulty of replacement. At the same time, when the protective airtight door is closed, the protective airtight door squeezes the sealing airbag, so that the sealing airbag extends and fills the gap between the protective airtight door and the ramp, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a cutaway three-dimensional structure of a protective airtight door of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the extension plate of the utility model;

[0019] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 5 For the present utility model Figure 2 is a schematic enlarged structure diagram at position B in the present utility model.

[0021] In the figure: 1. Sealing assembly; 101. Protective airtight door frame; 102. First protective airtight door; 103. Control handle; 104. Second protective airtight door; 2. Adjusting assembly; 201. Groove; 202. Elastic airbag; 203. Connecting block; 204. First chute; 205. First slider; 206. Connecting rod; 207. Extension plate; 208. Baffle; 209. Second slider; 210. Second chute; 211. Pressure spring; 3. Sealing assembly; 301. Storage groove; 302. Sealing airbag; 303. Sealing rubber pad; 304. Clamping block; 305. Lead screw. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5, the present utility model provides a technical solution: a ramp inward-opening double-leaf airtight and blast-proof door, including an airtight assembly 1, an adjustment assembly 2 is arranged inside the airtight assembly 1, and the adjustment assembly 2 includes a groove 201, an elastic airbag 202 is bonded inside the groove 201, and a connecting block 203 is bonded under the elastic airbag 202. A first sliding groove 204 is opened under the connecting block 203, and a first slider 205 is slidably connected inside the first sliding groove 204. A connecting rod 206 is hinged under the first slider 205, and an extension plate 207 is hinged under the connecting rod 206. A baffle 208 is hinged on the front surface of the extension plate 207. A second sliding groove 210 is opened on the inner wall of the groove 201, and a pressure spring 211 is fixedly connected inside the second sliding groove 210. A second slider 209 is fixedly connected under the pressure spring 211, and the front surface of the second slider 209 is fixedly connected to the baffle 208. A sealing assembly 3 is arranged under the airtight assembly 1. By providing the second slider 209 and the second sliding groove 210, the second slider 209 slides along the second sliding groove 210, so as to facilitate driving the baffle 208 to adjust and adjust the position of the baffle 208. By providing the pressure spring 211, when the pressure spring 211 is compressed, the elastic force generated by the pressure spring 211 pushes the second slider 209 to move, so as to ensure that the extension plate 207 always fits the ramp. By providing the elastic airbag 202, through the elastic recovery of the elastic airbag 202, the connecting block 203 is pushed to move along the groove 201, so as to push the extension plate 207 to fit the ramp. By providing the first sliding groove 204 and the first slider 205, the stable operation of the connecting block 203 is ensured. By providing the connecting rod 206, the connection between the connecting block 203 and the extension plate 207 is ensured.

[0024] The airtight assembly 1 includes a blast-proof and airtight door frame 101, and a blast-proof and airtight door leaf 102 is rotatably connected inside the blast-proof and airtight door frame 101. A control handle 103 is rotatably connected to the front surface of the blast-proof and airtight door leaf 102. A blast-proof and airtight door leaf 104 is snap-connected to one side of the blast-proof and airtight door leaf 102, and one side of the blast-proof and airtight door leaf 104 is rotatably connected to the blast-proof and airtight door frame 101.

[0025] The groove 201 is opened under the blast-proof and airtight door leaf 102. One end of the extension plate 207 is rotatably connected to the lower part of the blast-proof and airtight door frame 101, and the extension plate 207 is a telescopic plate. By providing the extension plate 207, the baffle 208 drives the extension plate 207 to move, so as to facilitate adjusting the angle of the extension plate 207, and the extension plate 207 is a telescopic plate, so as to ensure the connection between the extension plate 207 and the baffle 208.

[0026] The baffle 208 is slidably connected to the blast-proof and airtight door frame 101 through the second slider 209, and two second sliders 209 are symmetrically arranged along the center of the baffle 208.

[0027] The sealing assembly 3 includes a receiving groove 301, and the receiving groove 301 is opened below the protective airtight door frame 101, and the receiving groove 301 is opened on the front of the groove 201.

[0028] A sealing airbag 302 is snap-fitted in the receiving groove 301, and a sealing rubber pad 303 is bonded to the lower part of the sealing airbag 302. By providing the sealing airbag 302 and the sealing rubber pad 303, when the protective airtight door frame 101 is engaged with the ramp, the sealing rubber pad 303 is pushed to squeeze the sealing airbag 302, so that the sealing airbag 302 begins to extend, and thus the sealing airbag 302 fills the gap between the protective airtight door 102 and the ramp, so as to achieve the sealing effect.

[0029] A clamping block 304 is lapped on the front of the sealing airbag 302, and a lead screw 305 is rotatably connected to the front of the clamping block 304. The lead screw 305 is rotatably connected to the front of the protective airtight door frame 101. By providing the lead screw 305 and the clamping block 304, by rotating the lead screw 305 to drive the lead screw 305 away from the sealing airbag 302, the fixation of the sealing airbag 302 is released, so as to facilitate the replacement of the sealing rubber pad 303 and the sealing airbag 302 and ensure the sealing effect.

[0030] Working principle: When using the protective airtight door, first, the old sealing airbag 302 is disassembled by rotating the lead screw 305. Secondly, the sealing airbag 302 is snap-fitted with the receiving groove 301. Then, the lead screw 305 is rotated to make the lead screw 305 push the clamping block 304 to clamp the sealing airbag 302, so as to complete the replacement of the sealing airbag 302 and ensure the sealing effect of the protective airtight door. At the same time, the replacement difficulty is reduced. At the same time, when the protective airtight door 102 is closed, the protective airtight door 102 squeezes the sealing airbag 302, so that the sealing airbag 302 extends to fill the gap between the protective airtight door 102 and the ramp, thereby improving the sealing effect. By rotating the control handle 103, the locking of the protective airtight door 102 is released, and at the same time, the locking of the protective airtight door 104 is released, and the protective airtight door 102 and the protective airtight door 104 are pushed to close the protective airtight door 102, so that the extension plate 207 is lapped with the ramp, and thus the extension plate 207 pushes the baffle 208 to move along the sliding groove 210 through the sliding block two 209, so that the sliding block two 209 compresses the pressure spring 211. At the same time, the elastic recovery of the pressure spring 211 pushes the extension plate 207 to fit with the ramp, and the elastic recovery of the elastic airbag 202 pushes the connecting rod 206 to move, so that the connecting rod 206 pushes the extension plate 207 to fit with the ramp, so as to facilitate the adjustment of the angle of the extension plate 207 according to different slopes of the ramp, increase the use range of the protective airtight door, and thus complete the use of the protective airtight door.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present utility model, rather than limiting the protection scope of the present utility model. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present utility model shall not depart from the essence and scope of the technical solution of the present utility model.

Claims

1. A ramp inward opening double-leaf protective closed door, comprising a closed component (1), characterized in that: The sealing component (1) is provided with an adjustment component (2), and the adjustment component (2) comprises a groove (201), an elastic airbag (202) is bonded in the groove (201), and a connecting block (203) is bonded below the elastic airbag (202), a sliding groove (204) is provided below the connecting block (203), and a sliding block (205) is slidably connected in the sliding groove (204), a connecting rod (206) is hinged below the sliding block (205), and the connecting rod (206) is hinged below the sliding block (205). An extension plate (207) is hingedly connected below the groove (206), a baffle (208) is hingedly connected to the front of the extension plate (207), a slide groove (210) is provided on the inner wall of the groove (201), and a pressure spring (211) is fixedly connected inside the slide groove (210), a slider (209) is fixedly connected below the pressure spring (211), and the front of the slider (209) is fixedly connected to the baffle (208), and a sealing component (3) is arranged below the sealing component (1).

2. The ramp inward opening double-leaf protective closed door according to claim 1, characterized in that: The sealing component (1) includes a protective sealed door frame (101), and a protective sealed door 1 (102) is rotatably connected inside the protective sealed door frame (101), a control handle (103) is rotatably connected to the front of the protective sealed door 1 (102), a protective sealed door 2 (104) is snap-connected to one side of the protective sealed door 1 (102), and one side of the protective sealed door 2 (104) is rotatably connected to the protective sealed door frame (101).

3. The ramp inward opening double-leaf protective closed door according to claim 2, characterized in that: The groove (201) is opened below the protective sealed door (102), one end of the extension plate (207) is rotatably connected to the bottom of the protective sealed door frame (101), and the extension plate (207) is a telescopic plate.

4. The ramp inward opening double-leaf protective closed door according to claim 2, characterized in that: The baffle plate (208) is slidably connected to the protective closed door frame (101) via a second slider (209), and two second sliders (209) are symmetrically arranged along the center of the baffle plate (208).

5. The ramp inward opening double-leaf protective closed door according to claim 1, characterized in that: The sealing assembly (3) comprises a receiving groove (301), and the receiving groove (301) is arranged below the protective and airtight door frame (101), and the receiving groove (301) is arranged on the front side of the groove (201).

6. The ramp inward opening double-leaf protective closed door according to claim 5, characterized in that: A sealing airbag (302) is snap-connected inside the storage groove (301), and a sealing rubber pad (303) is bonded under the sealing airbag (302).

7. The ramp inward opening double-leaf protective closed door according to claim 6, characterized in that: The front side of the sealing airbag (302) is overlapped with a clamping block (304), and the front side of the clamping block (304) is rotatably connected to a screw rod (305), and the screw rod (305) is rotatably connected to the front side of the protective and airtight door frame (101).