CN215485667U

CN215485667U - Steel construction threshold single leaf protective airtight door that lives

Info

Publication number: CN215485667U
Application number: CN202023248361.8U
Authority: CN
Inventors: 周剑刚; 王海峰; 郑黎; 张旭敏
Original assignee: Zhejiang Liming Civil Air Defense Equipment Co ltd
Current assignee: Zhejiang Liming Civil Air Defense Equipment Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-01-11
Anticipated expiration: 2030-12-29

Abstract

The application discloses steel construction threshold single leaf protection airtight door alive, include the door frame and locate the airtight door in the door frame, be equipped with the screw rod in the door frame and be used for holding the appearance chamber of airtight door, airtight door includes the first door body, the second door body, the first door body sets up with the interval of the second door body, the internal rotation of second door is connected with the carousel, the one end and the first body coupling of screw rod, the other end is connected with the carousel cooperation, the first door body receives the impact promotion screw rod and removes toward the second door body direction, the screw rod drives the carousel and rotates. The application provides a steel construction threshold single leaf protection airtight door that lives can be very big slows down the impact force to decompose the impact force of perpendicular to airtight door into the decomposition power that is on a parallel with airtight door, thereby reduce and reach the effect that slows down the impact, the very big reduction the cost when having reduced airtight door weight.

Description

Steel construction threshold single leaf protective airtight door that lives

Technical Field

The application relates to the field of airtight doors, in particular to a steel structure movable threshold single-leaf protective airtight door.

Background

The protective airtight door is arranged on the outermost side of the entrance and the exit, and the protective airtight door can block shock waves to meet the corresponding resistance requirement. When selecting the use, not only should satisfy the needs of entrance to a cave size, still should satisfy the design pressure requirement, but present protective airtight door need use a large amount of protective material usually, and not only the cost is expensive and occupy a large amount of usable floor area, and it is also very inconvenient because the heavy switching of whole weight is.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the steel structure movable threshold single-leaf protective airtight door which can greatly reduce the impact force and decompose the impact force vertical to the airtight door into the decomposition force parallel to the airtight door, thereby reducing the effect of reducing the impact and greatly reducing the cost while reducing the weight of the airtight door.

For reaching above mesh, this application provides a steel construction threshold single leaf protection airtight door, include the door frame and locate the airtight door in the door frame, be equipped with the screw rod in the door frame and be used for the holding the appearance chamber of airtight door, airtight door includes the first door body, the second door body, the first door body with the second door body interval sets up, the internal rotation of second door is connected with the carousel, the one end of screw rod with the first body coupling, the other end with the carousel cooperation is connected, the first door body receives the impact promotion the screw rod is past the removal of second door body direction, the screw rod drives the carousel rotates.

Compared with the prior art, the beneficial effect of this application lies in: the two door bodies are arranged in front and back to form a whole, so that the two doors are fixed in a normal use state, and the normal use is not influenced; when the impact comes, the first door body can be used as a buffer layer to buffer the first layer, the impact force is weakened, the first door body can be pushed to move towards the second door body direction by the impact force when bearing the impact force, the screw rod is pushed to move towards the second door body direction, the electric rotary table of the screw rod is rotated, the impact force is decomposed into the decomposition force parallel to the second door body direction by the force vertical to the second door body direction, the impact force is further buffered, and the impact resistance is improved.

As an improvement, the turntable is provided with a threaded hole for the screw rod to pass through, the screw rod is in threaded fit with the threaded hole, the door frame is provided with a hole for the screw rod to pass through, through the improvement, the turntable is matched with the screw rod more closely, and the hole in the door frame reserves a space for the movement of the screw rod.

As an improvement, the first door body and the second door body are respectively positioned on two sides of the accommodating cavity, the rotary table is abutted against the door frame, the use of the sealed door in a normal use state can be ensured through the improvement, the rotary table is abutted against the door frame, the rotary table rotating resistance can be increased when the rotary table rotates, and the impact force is reduced.

As an improvement, a first spring is further arranged in the door frame, one end of the first spring is connected with the first door body, and the other end of the first spring is connected with the second door body.

As an improvement, the second door body is also provided with a resistance piece for increasing the rotation resistance of the rotary table, and through the improvement, the resistance piece can further increase the resistance of the rotary table during rotation, so that the consumption of impact force and the loss of the impact force are aggravated, and the second door body and the first door body are prevented from being damaged due to the bearing of larger impact force.

As an improvement, a plurality of convex strips are arranged on the circumferential direction of the turntable, a plurality of grooves are formed in the second door body, the blocking piece is arranged in the grooves and comprises a stop block and a second spring, one end of the second spring is connected with the stop block, the other end of the second spring is connected with the second door body, when the stop block is positioned on one side, far away from the second spring, in the grooves, the stop block is partially abutted against the convex strips, when the stop block is positioned on one side, close to the second spring, in the grooves, the stop block is separated from the convex strips, through the improvement, the resistance to rotation of the convex strips is increased through the second spring and the stop block, the resistance to rotation of the turntable is increased, the rotation of the turntable is not influenced, the impact force is converted into the kinetic energy of the rotation of the turntable through the screw turntable, and the impact force from the front is consumed, the impact force of the front surface is slowed down.

As the improvement, still be equipped with in the recess and be used for the restriction the dog is according to presetting the angular displacement the stopper through the aforesaid improvement, can guarantee that the stopper is according to presetting the angular displacement all the time to make the stopper can increase sand grip rotation resistance in presetting the position, and remove the certain distance back at the stopper, separate with the sand grip.

Drawings

FIG. 1 is a perspective view of the overall structure of the present application;

FIG. 2 is a rear view of the overall structure of the present application;

fig. 3 is a perspective view of the present application after a door frame is hidden;

fig. 4 is a cross-sectional view of the overall structure of the present application.

In the figure: 1. a door frame; 11. a cavity; 12. a first spring; 2. a first door body; 3. a second door body; 31. a turntable; 311. A convex strip; 32. a screw; 33. a stopper; 35. and a limiting block.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the orientation words, such as the terms "central", "upper", "lower", "front", "back", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The application provides a steel construction threshold single leaf protective airtight door, as shown in fig. 1-4, include door frame 1 and locate the airtight door in the door frame 1, be equipped with in the door frame 1 and be used for the holding the appearance chamber 11 of airtight door, it still is equipped with screw rod 32 to hold the intracavity 11, airtight door includes the first door body 2, the second door body 3, the first door body 2 with the 3 intervals of the second door body set up, 3 internal rotations of the second door body are connected with carousel 31, screw rod 32 one end with the first door body 2 is connected, the other end with the cooperation of carousel 31 is connected, screw rod 32 removes the drive carousel 31 rotates, the first door body 2 receives the impact promotion the screw rod 32 is past 3 directions of the second door body remove, screw rod 32 drives carousel 31 rotates.

Specifically, as shown in fig. 4, a threaded hole for the screw rod 32 to pass through is formed in the rotating disc 31, the screw rod 32 is in threaded fit with the threaded hole, and an opening for the screw rod 32 to pass through is formed in the door frame 1.

Specifically, the first door body 2 and the second door body 3 are respectively located on two sides of the accommodating cavity 11, and the rotary disc 31 is abutted to the door frame 1.

Specifically, as shown in fig. 4, a first spring 12 is further disposed in the door frame 1, one end of the first spring 12 is connected to the first door body 2, the other end of the first spring 12 is connected to the second door body 3, and the first spring 12 provides tension.

Specifically, as shown in fig. 3, a resistance member for increasing the rotation resistance of the rotary disc 31 is further disposed on the second door body 3.

Specifically, as shown in fig. 3, a plurality of protruding strips 311 are arranged on the circumferential direction of the rotating disc 31, a plurality of grooves are formed in the second door body 3, the blocking piece is arranged in the groove and comprises a blocking piece 33 and a second spring, one end of the second spring is connected with the blocking piece 33, the other end of the second spring is connected with the second door body 3, the second spring provides tension, when the blocking piece 33 is located on one side, far away from the second spring, in the groove, the blocking piece 33 is partially abutted to the protruding strips 311, the protruding strips 311 rotate to drive the blocking piece 33 to compress the second spring to move, when the blocking piece 33 is located on one side, near the second spring, in the groove, the blocking piece 33 is separated from the protruding strips 311, and the blocking piece 33 is restored to the initial state under the acting force of the second spring.

Specifically, as shown in fig. 3, a limiting block 35 for limiting the stopper 33 to move according to a preset angle is further disposed in the groove.

The working principle of the application is as follows: the first door body 2 is located at the outer side, the second door body 3 is located at the inner side, when the outer side of the door frame 1 receives impact force, the impact force first impacts the door frame 1, then the door frame 1 acts on the first door body 2, the first door body 2 is pushed to compress the first spring 12 and move towards the inner side, and simultaneously the screw rod 32 is driven to move towards the inner side, because the screw rod 32 is in threaded connection with the rotary disc 31 and the rotary disc 31 is abutted with the door frame 1, the rotary disc 31 will start to rotate to consume the impact force from the direction perpendicular to the second door body 3, the convex strip 311 on the rotary disc 31 starts to rotate clockwise, the convex strip 311 is abutted with the stop 33 and drives the stop 33 to compress the second spring to start to move, the stop 33 and the second spring increase resistance for the rotation of the rotary disc 31, the impact force is further consumed, when the convex strip 311 drives the stop 33 to move to be limited by the limit block 35, the stop 33 can only move in parallel, when the convex strip 311 drives the stopper 33 to move to the stopper 33 and the convex strip 311 no longer abut, the stopper 33 returns to the initial state again under the action of the second spring, which is equivalent to charging, providing resistance for the rotation of the next convex strip 311, thereby effectively reducing the impact force.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a steel construction threshold single leaf protective airtight door that lives, its characterized in that: including the door frame and locate the airtight door in the door frame, be equipped with the screw rod in the door frame and be used for the holding the appearance chamber of airtight door, airtight door includes the first door body, the second door body, the first door body with the second door body interval sets up, the internal rotation of second door is connected with the carousel, the one end of screw rod with the first body coupling, the other end with the carousel cooperation is connected, the first door body receives the impact promotion the screw rod is past the removal of second door body direction, the screw rod drives the carousel rotates.

2. The steel structure movable threshold single-leaf protective airtight door of claim 1, wherein: the rotary plate is provided with a threaded hole for the screw rod to pass through, the screw rod is in threaded fit with the threaded hole, and the door frame is provided with a hole for the screw rod to pass through.

3. The steel structure movable threshold single-leaf protective airtight door of claim 1, wherein: the first door body and the second door body are respectively positioned on two sides of the containing cavity, and the rotary table is abutted to the door frame.

4. The steel structure movable threshold single-leaf protective airtight door of claim 3, wherein: the door frame is also internally provided with a first spring, one end of the first spring is connected with the first door body, and the other end of the first spring is connected with the second door body.

5. The steel structure movable threshold single-leaf protective airtight door of claim 3, wherein: and the second door body is also provided with a resistance piece for increasing the rotation resistance of the turntable.

6. The steel structure movable threshold single-leaf protective airtight door of claim 5, wherein: the circumference of carousel is equipped with many sand grips, a plurality of recesses have been seted up on the second door body, it locates to hinder the piece in the recess, it includes dog and second spring to hinder the piece, the one end of second spring with the dog is connected, the other end with second door body coupling, works as the dog is located keep away from in the recess during one side of second spring, the dog part with the sand grip butt, works as the dog is located be close to in the recess during one side of second spring, the dog with the sand grip separation.

7. The steel structure movable threshold single-leaf protective airtight door of claim 6, wherein: and a limiting block used for limiting the stop block to move according to a preset angle is further arranged in the groove.