Civil air defense door with quick plugging mechanism

Abstract

The utility model discloses a civil air defense door with a quick plugging mechanism, relates to the technical field of civil air defense doors, and provides the following scheme aiming at the problems that after a fireproof door provided in the background technology is automatically closed, a certain gap exists between a fireproof connecting door and the ground, toxic smoke enters the other side of the fireproof door along the gap, and the protection effect is poor. Comprising a door frame and a sealing door, a limiting mechanism is arranged in the door frame, the limiting mechanism comprises a doorsill, a blocking mechanism is arranged in the door frame, and the blocking mechanism comprises a blocking plate, a connecting plate fixedly arranged on the outer wall of one side of the blocking plate and four connecting rods fixedly arranged on the outer walls of the two sides of the connecting plate in a pairwise mode; adjusting mechanisms are arranged on the two sides of the door frame, and each adjusting mechanism comprises a mounting plate and an adjusting oil cylinder. The gap between the bottom of the civil air defense door and the ground can be blocked in the automatic closing process of the civil air defense door, toxic smoke is prevented from penetrating through the gap, and the protection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, and in particular to a civil defense door with a rapid sealing mechanism. Background Technology

[0002] Civil defense doors are the doors at the entrances and exits of civil defense projects. Civil defense doors are classified in a relatively clear manner, including ordinary single and double-leaf protective airtight doors and airtight doors, as well as single and double-leaf protective airtight doors and airtight doors with movable thresholds, and other types of civil defense equipment.

[0003] A search revealed a Chinese patent (application number "202121361756.0") disclosing "a fire door for civil defense projects with automatic smoke detection and closing function." This fire door includes a top plate with a partition at its lower end. A smoke filter is installed inside the partition, and a fire-resistant connecting door is located inside the smoke filter. A hinge block connected to the partition is installed at the outer end of the fire-resistant connecting door. An observation frame is installed in the middle of the fire-resistant connecting door, and an operating component is fixedly installed at the front end of the observation frame. A fire extinguishing component is installed above the operating component at the lower end of the top plate. A water valve assembly is installed on the left side of the upper surface of the top plate. A smoke-absorbing mechanism is located on the right side of the upper surface of the top plate, and a transmission pipe is connected to the right end of the smoke-absorbing mechanism. A smoke sensor is installed at the rear end of the top plate. However, during use, after the fire door automatically closes, a gap exists between the fire-resistant connecting door and the ground, allowing toxic smoke to enter the other side of the fire door along the gap, resulting in poor protection. Utility Model Content

[0004] This utility model provides a fire-resistant door with a quick-sealing mechanism, which solves the problem mentioned in the prior art that after the fire door automatically closes, there is a certain gap between the fire-resistant connecting door and the ground, causing toxic fumes to enter the other side of the fire door along the gap, resulting in poor protection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A civil defense door with a rapid sealing mechanism includes a door frame and a sealing door. The door frame is provided with a limiting mechanism, which includes a threshold. The door frame is provided with a sealing mechanism, which includes a sealing plate, a connecting plate fixed to one outer wall of the sealing plate, and four connecting rods fixed in pairs to the outer walls of both sides of the connecting plate. Both sides of the door frame are provided with an adjustment mechanism, which includes a mounting plate, an adjusting cylinder bolted to the bottom outer wall of the mounting plate, and a connecting block bolted to the bottom outer wall of the piston rod of the adjusting cylinder.

[0007] Preferably, the door frame has mounting grooves on the top and both outer walls, and a connecting groove on one outer wall.

[0008] Preferably, the sealed door includes a door panel connected to the outer wall of the door frame by two hinges and a sealing plate fixed to the outer wall of the door panel.

[0009] Preferably, the threshold is fixed on the lower inner wall of the door frame on both sides, and four limiting rods are fixed on the outer wall at the bottom of the threshold.

[0010] Preferably, an installation opening is provided on the upper outer wall of one side of the sealing plate, and a sealing gasket is embedded in the installation opening. The two sides of the connecting plate abut against the lower inner walls of the two sides of the door frame, and the connecting plates are slidably installed on the outer walls of the four limiting rods. Four slides are provided on the lower inner walls of the two sides of the door frame, and the four connecting rods are slidably installed in the four slides.

[0011] Preferably, the mounting plate is fixed on the inner wall of one side of the mounting groove, and a support column is fixed on the outer wall of the bottom of the mounting plate, and the connecting block is fixed on the outer wall of one end of two connecting rods.

[0012] With the above scheme, when a fire occurs on one side of the air-raid shelter door, the door will automatically close. When it closes, the regulating cylinder will move, causing the piston rods of the two regulating cylinders to move synchronously and drive the connecting block to rise. The connecting block will drive the connecting plate to rise along the four limit rods through the connecting rod, and at the same time drive the sealing plate to rise, so that the sealing plate will seal the gap between the air-raid shelter door and the ground, preventing toxic fumes from entering the other side of the air-raid shelter door through the gap.

[0013] The beneficial effects of this utility model are as follows:

[0014] When a fire occurs on one side of the air-raid shelter door, the door automatically closes. During the closing process, the regulating cylinders actuate, causing the piston rods of the two regulating cylinders to move synchronously, which in turn raises the connecting block. The connecting block, through the connecting rod, raises the connecting plate along the four limit rods, simultaneously raising the sealing plate. This causes the sealing plate to seal the gap between the air-raid shelter door and the ground, preventing toxic fumes from entering the other side of the air-raid shelter door through the gap. The sealing plate can also seal the gap between the bottom of the air-raid shelter door and the ground during the automatic closing process, preventing toxic fumes from passing through the gap and improving the protective effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall main structure of a civil defense door with a rapid sealing mechanism proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of the door frame of a civil defense door with a rapid sealing mechanism proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of a sealing door with a rapid sealing mechanism for a civil defense door proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the front view structure of the threshold of a civil defense door with a rapid sealing mechanism proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the main structure of the sealing mechanism of a civil defense door with a rapid sealing mechanism proposed in this utility model.

[0020] Figure 6 This is a schematic diagram of the main structure of the adjustment mechanism of a civil defense door with a rapid sealing mechanism proposed in this utility model.

[0021] In the diagram: 1. Door frame; 11. Mounting groove; 12. Connecting groove; 2. Sealed door; 201. Door panel; 202. Sealing plate; 3. Limiting mechanism; 301. Threshold; 302. Limiting rod; 4. Sealing mechanism; 401. Sealing plate; 402. Sealing gasket; 403. Connecting plate; 404. Connecting rod; 5. Adjusting mechanism; 501. Mounting plate; 502. Support column; 503. Adjusting cylinder; 504. Connecting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, referring to Figure 1-4 A type of air-raid shelter door with a quick-sealing mechanism includes a door frame 1 and a sealing door 2. The door frame 1 has mounting grooves 11 on its top and two outer walls, and a connecting groove 12 on one outer wall. The sealing door 2 includes a door panel 201 connected to the outer wall of the door frame 1 by two hinges and a sealing plate 202 fixed to the outer wall of the door panel 201. The sealing door 2 and the door frame 1 are connected by a switch structure in the prior art. There is a certain gap between the bottom of the sealing door 2 and the ground at the installation position of the air-raid shelter door. The sealing plate 202 can be completely embedded in the connecting groove 12 when closed. The door frame 1 is provided with a limiting mechanism 3, which includes a threshold 301. The threshold 301 is fixed to the lower inner walls of the two sides of the door frame 1, and four limiting rods 302 are fixed to the bottom outer wall of the threshold 301. The threshold 301 is flush with the ground at the installation position of the air-raid shelter door.

[0024] Example 2, refer to Figure 5-6A type of air-raid shelter door with a rapid sealing mechanism further includes a sealing mechanism 4. The sealing mechanism 4 includes a sealing plate 401, a connecting plate 403 fixed to one outer wall of the sealing plate 401, and four connecting rods 404 respectively fixed in pairs to the outer walls of the connecting plate 403 on both sides. An installation opening is provided on the upper outer wall of one side of the sealing plate 401, and a sealing gasket 402 is embedded in the installation opening. The sealing gasket 402 is made of a heat-expanding sealing material, such as an expanded graphite composite gasket. When the door panel 201 is heated, heat is transferred to the sealing gasket 402, causing the sealing gasket 402 to expand, further improving the sealing performance between the door panel 201 and the sealing plate 401. The connecting plates 403 abut against the lower inner walls of both sides of the door frame 1 on both sides, and the connecting plates 403 are slidably mounted on the four limiting rods 30. On the outer wall, four slide rails are opened on the lower inner walls of both sides of the door frame 1. Four connecting rods 404 are slidably installed in the four slide rails respectively. The bottom ends of the four connecting rods 404 are embedded in the ground groove (pre-opened in the ground) at the installation position of the air-raid shelter door. Adjustment mechanisms 5 are provided on both sides of the door frame 1. The adjustment mechanism 5 includes a mounting plate 501, an adjustment cylinder 503 connected to the bottom outer wall of the mounting plate 501 by bolts, and a connecting block 504 connected to the bottom outer wall of the piston rod of the adjustment cylinder 503 by bolts. The mounting plate 501 is fixed on the inner wall of one side of the mounting groove 11. A support column 502 is fixed on the bottom outer wall of the mounting plate 501. The support column 502 is an I-beam. At the same time, the lower part of the support column 502 is embedded in the groove at the installation position of the air-raid shelter door. The connecting block 504 is fixed on the outer wall of one end of two of the connecting rods 404.

[0025] Working principle: When a fire occurs on one side of the air-raid shelter door, the door closes automatically. When it closes, the regulating cylinder 503 is activated, causing the piston rods of the two regulating cylinders 503 to move synchronously, which drives the connecting block 504 to rise. The connecting block 504 drives the connecting plate 403 to rise along the four limit rods 302 through the connecting rod 404. At the same time, it drives the sealing plate 401 to rise, so that the sealing plate 401 seals the gap between the sealing door 2 and the ground, preventing toxic fumes from entering the other side of the air-raid shelter door through the gap.

[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A civil air defense door with a quick sealing mechanism, comprising a door frame (1) and a sealing door (2), characterized in that, The door frame (1) is internally provided with a limiting mechanism (3), the limiting mechanism (3) comprises a door sill (301); The door frame (1) is internally provided with a plugging mechanism (4), the plugging mechanism (4) comprises a plugging plate (401), a connecting plate (403) fixedly arranged on one side of the outer wall of the plugging plate (401) and four connecting rods (404) fixedly arranged on the outer walls on both sides of the connecting plate (403) respectively in pairs; Both sides of the door frame (1) are provided with an adjusting mechanism (5), the adjusting mechanism (5) comprises a mounting plate (501), an adjusting oil cylinder (503) connected to the bottom outer wall of the mounting plate (501) by bolts and a connecting block (504) connected to the outer wall of the bottom end of the piston rod of the adjusting oil cylinder (503) by bolts.

2. The civil defense door having a quick sealing mechanism according to claim 1, wherein, The top and both sides of the outer wall of the door frame (1) are provided with mounting grooves (11), and one side of the outer wall of the door frame (1) is provided with a connecting groove (12).

3. The civil defense door having a quick sealing mechanism according to claim 1, wherein, The sealing door (2) comprises a door plate (201) connected to the outer wall of the door frame (1) by two hinges and a sealing plate (202) fixedly arranged on the outer wall of the door plate (201).

4. The civil defense door with a quick sealing mechanism according to claim 1, characterized in that, The door sill (301) is fixedly arranged on the lower inner wall of both sides of the door frame (1) respectively, and four limiting rods (302) are fixedly arranged on the bottom outer wall of the door sill (301).

5. The civil defense door with a quick sealing mechanism according to claim 4, characterized in that, The upper outer wall of one side of the plugging plate (401) is provided with a mounting opening, and a sealing gasket (402) is embedded in the mounting opening, the connecting plate (403) is abutted on the lower inner wall of both sides of the door frame (1) respectively, and the connecting plate (403) is slidingly installed on the outer wall of the four limiting rods (302) respectively, the lower inner wall of both sides of the door frame (1) is provided with four slide ways respectively, and the four connecting rods (404) are slidingly installed in the four slide ways respectively.

6. The civil defense door with a quick sealing mechanism according to claim 2, characterized in that, The mounting plate (501) is fixedly arranged on one side of the inner wall of the mounting groove (11), and a supporting column (502) is fixedly arranged on the bottom outer wall of the mounting plate (501), and the connecting block (504) is fixedly arranged on the outer wall of one end of the two connecting rods (404).

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