CN217897675U

CN217897675U - Steel structure double-leaf protective airtight door

Info

Publication number: CN217897675U
Application number: CN202221495595.9U
Authority: CN
Inventors: 梁红斌
Original assignee: Tianjin Zhonghe Hengtai Civil Defense Engineering Protection Equipment Co ltd
Current assignee: Tianjin Zhonghe Hengtai Civil Defense Engineering Protection Equipment Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-11-25
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to a steel construction two-leaf protection airtight door, including the door frame, the inside both sides of door frame articulate there is airtight door, and are two sets of the second spout has been seted up to the positive one end top of airtight door and one side of bottom, and is two sets of the inside slip of second spout is provided with seal assembly, the top that the positive one end of airtight door is close to one side each other has set gradually dead lever and first ratchet bar, two sets of fixed slots have been seted up to the intermediate position department at the inside top of door frame, and is two sets of the bottom of dead lever articulates there is the hinge bar. The utility model discloses the device is provided with two sets of closing plates through the positive one end at two sets of airtight doors, can shield the gap department between two sets of airtight doors sealed, increases the leakproofness between two sets of airtight doors for protective airtight door can be to the effectual separation of protecting of toxicant, and two sets of closing plates are fixed through two sets of kellies, and fixed between two sets of closing plates simultaneously can further increase protective airtight door's impact resistance force simultaneously.

Description

Steel structure double-leaf protective airtight door

Technical Field

The utility model relates to a protective airtight door technical field especially relates to a steel construction biparting protective airtight door.

Background

Civil air defense engineering also calls people's air defense work, refer to the underground protective building that is built alone for personnel and material shelter, people's air defense commander, medical aid and guarantee the wartime, and the basement that can be used for air defense during the wartime that combines ground building to build, civil air defense engineering is that the preparation enemy attacks suddenly, shelter personnel and material effectively, preserve the important facility of the potentiality of war, the protective airtight door is the main defence line of protection people's safety, the protective airtight door generally sets up in the access & exit outermost side, have and block two kinds of functions of shock wave and isolated poison agent.

However, the existing protective door has certain defects:

1. when the protective airtight door is used for protection, the impact resistance of the protective airtight door is poor due to the simple structure, the protective airtight door is easy to open, and the safety of the protective airtight door is reduced;

2. and current protective airtight door, two doors close the condition that can not appear not closed when closing, lead to the leakproofness of guard gate to reduce, reduce the effect to separation poison agent simultaneously.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and provides a steel structure double-leaf protective airtight door.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

steel construction two leaf protective airtight door, including the door frame, the inside both sides of door frame articulate there is airtight door, and is two sets of the second spout has been seted up to one side of the positive one end top of airtight door and bottom, and is two sets of the inside slip of second spout is provided with seal assembly, the positive one end of airtight door has set gradually dead lever and first ratchet bar near the top of one side each other, dead lever and airtight door sliding connection, two sets of dead lever male fixed slots that supply have been seted up to the intermediate position department at the inside top of door frame, and is two sets of the bottom of dead lever articulates there is the hinge bar, and the hinge bar is articulated with seal assembly, the back one end slip of dead lever is provided with the second ratchet bar, the positive one end of second ratchet bar is provided with the second spring. The first ratchet bar and the second ratchet bar are meshed with each other, and the bevel edges of the teeth of the first ratchet bar and the first ratchet bar slide with each other, so that the fixing rod is fixed conveniently. A pull rod is arranged at one end of the front face of the second ratchet bar, and the fixing rod and the sealing plate extend out of one end of the front face of the pull rod, so that the second ratchet bar and the first ratchet bar can be conveniently separated from each other.

Preferably, the seal assembly comprises a seal plate, a sliding plate, a first sliding groove, an installation block, a clamping rod, a telescopic groove and a first spring, the seal plate is in sliding connection with a second sliding groove, the hinge rod is hinged to the seal plate and is two sets of the first sliding groove is formed in one end of the front face of the seal plate, the first sliding groove is formed in the first sliding groove, the sliding plate is two sets of the mounting block, the telescopic groove is formed in one side, close to the mounting block, of the mounting block, the clamping rod is arranged in the telescopic groove in a sliding mode, the clamping rod is two sets of the first spring, fixedly connected with one side, far away from the first sliding groove, the clamping rod is two sets of the inclined plane, a limiting block for preventing the sliding of the telescopic groove from sliding out is arranged on one side, and the two sets of clamping rods are in contact, and horizontally move away from each other. Two sets of one side of closing plate contact is equipped with the sealing strip, can seal airtight door.

Preferably, one side at the positive one end top of airtight door is provided with the fixed block, the dead lever is located the inside slip of fixed block for the dead lever is vertical upwards.

The utility model has the advantages that:

1. through being provided with dead lever and fixed slot to protection airtight door for the dead lever card is in the inside of fixed slot, strengthens the firm in connection between airtight door and the door frame, can be so that airtight door reply stronger impact force.

2. Be provided with two sets of closing plates through the positive one end at two sets of airtight doors, can shield the gap department between two sets of airtight doors sealed, increase the leakproofness between two sets of airtight doors for protection airtight door can be to the effectual separation of protecting of toxicant, and two sets of closing plates are fixed through two sets of kellies, and the impact resistance of protection airtight door can further be increased to fixing between two sets of closing plates simultaneously.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is a front sectional view of the mounting block of the present invention;

fig. 4 is a side view and a cross-sectional view of the fixing rod of the present invention.

In the figure: 1-a door frame; 2-sealing a plate; 3, a sliding plate; 4-a first chute; 5-a second chute; 6, mounting a block; 7-a sealed door; 8-clamping the rod; 9-a telescopic groove; 10-a first spring; 11-a fixing bar; 12-a fixed slot; 13-a first ratchet bar; 14-a hinged lever; 15-a second spring; 16-second ratchet bar.

The following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1-4, a steel structure double-leaf protective airtight door comprises a door frame 1, airtight doors 7 are hinged to two sides of the interior of the door frame 1, second chutes 5 are formed in the top and one side of the bottom of the front ends of two groups of airtight doors 7, sealing assemblies are arranged inside the two groups of second chutes 5 in a sliding manner, fixing rods 11 and first ratchet bars 13 are sequentially arranged at the top of one side, which is close to the front end of each of the airtight doors 7, the fixing rods 11 are connected with the airtight doors 7 in a sliding manner, two groups of fixing grooves 12 for inserting the fixing rods 11 are formed in the middle position of the interior of the door frame 1, hinge rods 14 are hinged to the bottoms of the two groups of fixing rods 11, the hinge rods 14 are hinged to the sealing assemblies, second rack ratchets 16 are arranged at one ends of the back sides of the fixing rods 11 in a sliding manner, the first ratchet bars 13 are meshed with the second ratchet bars 16, the bevel edges of the teeth of the first ratchet bars 13 slide with the first ratchet bars 13, second springs 15 are arranged at one end of the front of the airtight doors 7, and the fixing rods 11 are arranged in a sliding manner inside the fixing blocks. A pull rod is arranged at one end of the front surface of the second ratchet bar 16, and one end of the front surface of the pull rod extends out of the fixing rod 11 and the sealing plate 2.

Further, seal assembly includes closing plate 2, slide 3, first spout 4, installation piece 6, kelly 8, flexible groove 9 and first spring 10,

closing plate

2 and 5 sliding connection of second spout, hinge bar 14 articulates on closing plate 2, first spout 4 has been seted up to two sets of closing plate 2 positive one end, the inside slip of two sets of first spouts 4 is provided with slide 3, one side fixedly connected with installation piece 6 that two sets of slides 3 are close to each other, flexible groove 9 has been seted up to one side that two sets of installation pieces 6 are close to each other, the inside slip of two sets of flexible groove 9 is provided with kelly 8, the first spring 10 of one side fixedly connected with that two sets of kellies 8 kept away from each other, it is two sets of one side cooperation that kelly 8 are close to each other is equipped with the inclined plane, one side that deviates from each other is equipped with the stopper that prevents the flexible groove 9 of roll-off. And sealing strips are arranged on one side of the two groups of sealing plates 2, which are in contact with each other, and the sealing strips can be made of rubber materials which do not react with toxic gas.

The working principle is as follows: firstly, two groups of airtight doors 7 are closed, at the moment, the two groups of airtight doors 2 are close to each other in the second sliding groove 5 through the sliding sealing plates 2, so that the two groups of sealing plates 2 drive the two groups of hinged rods 14 to move, the two groups of hinged rods 14 push the fixed rod 11 to the inside of the fixed groove 12, the fixed rod 11 simultaneously drives the second ratchet bar 16 to move, the teeth of the second ratchet bar 16 and the bevel edge of the teeth of the first ratchet bar 13 slide mutually, when the two groups of sealing plates 2 are attached, the right-angle side of the teeth of the first ratchet bar 13 fixes the second ratchet bar 16, meanwhile, the two groups of sliding plates 3 are close to each other in the inside of the first sliding groove 4, the bevel edges of the two groups of clamping rods 8 are in contact with each other, so that the two groups of clamping rods 8 move to the inside of the telescopic groove 9, the two groups of clamping rods 8 continue to move, and when the two groups of clamping rods 8 are communicated with each other, the first spring 10 resets the clamping rods 8, so that the two groups of clamping rods 8 are mutually clamped.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Two protective airtight doors of steel construction, including door frame (1), its characterized in that, door frame (1) inside both sides are articulated to have airtight door (7), and are two sets of airtight door (7) openly one end top and one side of bottom have seted up second spout (5), and are two sets of the inside slip of second spout (5) is provided with seal assembly, airtight door (7) openly one end is close to the top of one side each other and has set gradually dead lever (11) and first ratchet bar (13), dead lever (11) and airtight door (7) sliding connection, the intermediate position department at door frame (1) inside top has seted up two sets of confession dead lever (11) male fixed slot (12), and is two sets of the bottom of dead lever (11) articulates there are hinge bar (14), and hinge bar (14) are articulated with seal assembly, the back one end slip of dead lever (11) is provided with second ratchet bar (16), the openly one end of second ratchet bar (16) is provided with second spring (15), intermeshing between first ratchet bar (13) and second ratchet bar (16), first ratchet bar (13) and the positive hypotenuse of first ratchet bar (13) slip one end and second ratchet bar (16) be provided with the positive hypotenuse pull rod (11) one end and the positive pull rod (2 pull rod (11) and the inside pull rod (16) that slides.

2. The steel structure double-leaf protective airtight door according to claim 1, wherein the sealing assembly comprises a sealing plate (2), a sliding plate (3), a first sliding groove (4), an installation block (6), a clamping rod (8), a telescopic groove (9) and a first spring (10), the sealing plate (2) is slidably connected with a second sliding groove (5), a hinge rod (14) is hinged on the sealing plate (2), the first sliding groove (4) is formed in one front end of the sealing plate (2), the sliding plate (3) is slidably arranged in the first sliding groove (4), the sliding plate (3) is fixedly connected with the installation block (6) in one side, the telescopic groove (9) is formed in one side, the installation block (6) is close to the sliding plate in the other side, the telescopic groove (9) is formed in the two sets of inner sliding grooves (9), the clamping rod (8) is fixedly connected with the first spring (10) in the other side, the clamping rod (8) is far away from the first sliding plate in the other side, an inclined plane is arranged in the side, the clamping rod (8) is separated from the telescopic groove (9) in the other side, an inclined plane is arranged in the side, and a limiting block (2) is arranged in the side, and a limiting block is arranged in the sealing plate (2) is arranged in the side.

3. The steel structure double-leaf protective airtight door according to claim 2, wherein a fixed block is arranged on one side of the top of one end of the airtight door (7) in the front, and the fixed rod (11) is positioned in the fixed block to slide.