CN218844160U

CN218844160U - Explosion-proof steel structure movable threshold double-leaf protective airtight door

Info

Publication number: CN218844160U
Application number: CN202223025235.5U
Authority: CN
Inventors: 汪勇; 汪志成
Original assignee: Anhui Huacheng Civil Air Defense Facility Co ltd
Current assignee: Anhui Huacheng Civil Air Defense Facility Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-04-11
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses an explosion-proof steel construction threshold biparting protective airtight door that lives, including airtight door plant, terminal surface middle part fixedly connected with support in the airtight door plant, the inboard rotation in support upper end is connected with changes the handle, change and be connected with the screw rod through the chain rotation on the side top, first external screw thread and second external screw thread have been seted up respectively to screw rod middle part both sides outer curved surface, screw rod both sides outer curved surface has the slider through threaded connection, slider both sides terminal surface laminating swing joint has the spacing groove, slider upper end outside fixedly connected with round pin post, the fixed cover of the inboard top fixedly connected with of airtight door plant. The utility model discloses when the round pin post leaves fixed cover and threshold up end inner wall simultaneously, through pressing the threshold, make the threshold move down along the grooved inner wall, can open airtight door plant to change the handle through rotating, press again or release the threshold and can play the effect of opening fast or consolidating airtight door plant.

Description

Explosion-proof steel structure movable threshold double-leaf protective airtight door

Technical Field

The utility model relates to a sealed door technical field specifically is an explosion-proof steel construction threshold biparting protective sealed door that lives.

Background

The protective airtight door is a door which is arranged at the outermost side of an entrance and an exit and has two functions of blocking shock waves and isolating toxicants, and is generally divided into three types, namely a fixed threshold, a movable threshold and a door leaf falling type door, wherein the manufacturing cost of the movable threshold series civil air defense door is slightly higher, the threshold is installed in the process of battle, and the corresponding requirements of protection, sealing and the like can be met in the process of battle; at ordinary times, no doorsill is arranged at the door opening, so that the passage of personnel and vehicles is facilitated, the requirement of fire evacuation is met, and the door opening is suitable for being used for more door openings for the passing of personnel and vehicles at ordinary times;

the application number 202122971081.8 discloses that "a steel construction threshold double-leaf protective airtight door that prevents blasting" includes the airtight door body and a door frame body, four edges of the airtight door body are provided with mounting panel and swivel bearing, the upper surface edge fixedly connected with fixed cover of the airtight door body, the inside grafting of fixed cover has the reinforcement inserted block, the fixed screw hole has been seted up on the surface of reinforcement inserted block, the outside threaded connection of fixed cover has revolves wrong pole, the front of the airtight door body is provided with two rolling discs, the surface of the door leaf department of opening and shutting of the airtight door body is provided with the fastening base, the inside of fastening base is provided with the locking inserted bar, the outside end of locking inserted bar is provided with the locking head, consolidates the inserted block and will consolidate the airtight door body once more to prevent the airtight door body from taking place the damage when receiving the blasting, thereby improved the steadiness of the airtight door body in the use;

but when using the fixed cover of consolidating the inserted block cooperation to consolidate or open the airtight door body, all need independently operate because of every consolidates the inserted block to can increase the operating time that the staff used the fixed cover of consolidating the inserted block cooperation to consolidate and open airtight door body, when meetting emergency, the condition that can't appear consolidating fast and open airtight door body easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent steel construction threshold biparting protective airtight door of blasting to but what provide among the above-mentioned background art is consolidating when fixed cover is consolidated the airtight door body or is opened in the use reinforcement inserted block cooperation, all need independently operate because of every reinforcement inserted block, thereby can increase the operating time that the staff used the fixed cover of reinforcement inserted block cooperation to the airtight door body to consolidate and open, when meetting emergency, the condition that can't appear consolidating fast and opening the airtight door body easily.

In order to achieve the above object, the utility model provides a following technical scheme: the door frame comprises a door frame body, the door frame inboard articulates there is airtight door plant, end surface middle part fixedly connected with support in the airtight door plant, the inboard rotation of support upper end is connected with changes the handle, it is connected with the screw rod to change the top of side through the chain rotation, first external screw thread and second external screw thread have been seted up respectively to screw rod middle part both sides camber, screw rod both sides camber rotates and is connected with the supporting shoe, supporting shoe bottom fixed connection is at airtight door plant up end, screw rod both sides camber has the slider through threaded connection, slider both sides end surface laminating swing joint has the spacing groove, slider upper end outside fixedly connected with round pin post, the inboard top fixedly connected with fixed cover of airtight door plant, the inboard bottom end ground of door frame is seted up flutedly, recess inner wall laminating swing joint has the threshold, first female screw hole has been seted up to recess upper end side, second female screw hole has been seted up to threshold upper end side, terminal surface fixedly connected with spring under the threshold, spring inner wall laminating swing joint has last spacing pipe, the laminating swing joint of last spacing pipe lower extreme camber has spacing pipe.

Preferably, the door frame is an integral casting component, and the lower bottom end of the door frame is embedded in the ground.

Preferably, the number of the closed door panels is two, the two closed door panels are symmetrically distributed on the inner side of the door frame, and the top end of the rotating handle side and the outer curved surface of the middle part of the screw rod are respectively and fixedly connected with a chain wheel.

Preferably, the first external thread and the second external thread are opposite in direction, every two support blocks form a group, the two groups of support blocks are symmetrically distributed by external curved surfaces on two sides of the screw rod, and the bottom ends of the support blocks are fixedly connected to the upper end face of the closed door plate.

Preferably, the bottom end of the limiting groove is fixedly connected to the upper end face of the closed door plate, the sliding blocks are symmetrically distributed by outer curved surfaces on two sides of the screw, the outer curved surface at the upper end of the pin is inserted into the inner wall of the fixed sleeve, and the outer curved surface at the lower end of the pin is inserted into the upper end face of the doorsill.

Preferably, the number of the first internal thread holes is three, so that the side surfaces of the upper end of the groove are symmetrically distributed, the inner wall of the second internal thread hole is in threaded connection with a bolt, the number of the second internal thread holes is three, so that the side surfaces of the upper end of the doorsill are symmetrically distributed, and the first internal thread holes and the second internal thread holes are on the same vertical line.

Preferably, the number of the springs is three, the springs are symmetrically distributed on the lower end face of the threshold, the upper top end of the upper limiting pipe is fixedly connected to the lower end face of the threshold, and the lower bottom end of the lower limiting pipe is fixedly connected to the inner bottom face of the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses when the twist grip rotates, can drive the screw rod that the side top of twist grip rotates to be connected through the chain rotation, when the screw rod rotates, can pass through first external screw thread and second external screw thread that screw rod middle part both sides external surface was seted up respectively, drive the slider that the screw rod both sides external surface passes through the screw thread rotation and connects, along the spacing inslot wall linear motion of slider both sides terminal surface laminating swing joint, and first external screw thread and second external screw thread opposite in orientation, thereby can move to the inboard simultaneously when the slider moves because of the threaded connection linear motion, can drive slider upper end outside welded round pin post when the slider moves to the inboard simultaneously, leave the fixed cover inner wall of airtight door plant inboard top welded and the threshold up end inner wall of recess inner wall laminating swing joint simultaneously, when round pin post leaves fixed cover and threshold up end inner wall simultaneously, through pressing down the threshold, make the threshold move down along the recess inner wall, after the threshold moves down along the recess inner wall, can open airtight door plant, thereby through rotating the twist grip, press down or release the threshold can play the effect of opening fast or consolidating airtight door plant;

2. the utility model discloses still when the threshold moves down along the grooved inner wall simultaneously, can promote the lower terminal surface welded spring of compression threshold, elastic potential energy through the production of spring compression deformation, can reverse promotion threshold rebound, thereby can play the effect of opening fast and closed threshold, simultaneously when the threshold is downward, can promote the lower terminal surface welded upper limit pipe of threshold, along the lower limit pipe inner wall of upper limit pipe lower extreme outer curved surface laminating swing joint move down, the crooked condition appears when preventing spring compression deformation through upper limit pipe and lower limit pipe, when the threshold is packed up completely downwards to needs simultaneously, the first internal thread hole of seting up second internal thread hole and recess upper end side of seting up threshold upper end side through the bolt, with threshold bolted connection at the grooved inner wall, thereby play and can hide the threshold, the effect that the vehicle of being convenient for passes through.

Drawings

Fig. 1 is a schematic view of the overall structure of an explosion-proof steel structure movable threshold double-leaf protective airtight door;

fig. 2 is a schematic view of the overall structure of an explosion-proof steel structure movable threshold double-leaf protective airtight door of the utility model II;

fig. 3 is the utility model relates to an explosion-proof steel construction threshold bi-leaf protective airtight door overall structure sectional view schematic diagram that lives.

In the figure: 1. a door frame; 2. a closed door panel; 3. a support; 4. turning a handle; 5. a screw; 6. a first external thread; 7. a second external thread; 8. a support block; 9. a slider; 10. a pin; 11. fixing a sleeve; 12. a groove; 13. a threshold; 14. a first internally threaded bore; 15. a second internally threaded bore; 16. a spring; 17. an upper limit pipe; 18. a lower limit pipe; 19. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the door frame 1 is an integral casting component, the lower bottom end of the door frame 1 is embedded on the ground, the inner side of the door frame 1 is hinged with two sealed door panels 2, the two sealed door panels 2 are symmetrically distributed on the inner side of the door frame 1, a support 3 is welded in the middle of the inner end surface of each sealed door panel 2, the inner side of the upper end of each support 3 is rotatably connected with a rotating handle 4 through a rotating shaft, the top end of the side of each rotating handle 4 is rotatably connected with a screw 5 through a chain, chain wheels are respectively welded on the top end of the side of each rotating handle 4 and the outer curved surface of the middle part of each screw 5, first external threads 6 and second external threads 7 are respectively arranged on the outer curved surfaces on the two sides of each screw 5, the threads of the first external threads 6 and the second external threads 7 are opposite, the outer curved surfaces on the two sides of each screw 5 are rotatably connected with supporting blocks 8 through rotating shafts, every two groups of supporting blocks 8 are symmetrically distributed on the outer curved surfaces on the two sides of each screw 5, and the bottom ends of the supporting blocks 8 are welded on the upper end surface of each sealed door panel 2, the outer curved surfaces of two sides of a screw 5 are connected with a slide block 9 through threads, the end surfaces of two sides of the slide block 9 are jointed with a limit groove 19 movably, the bottom end of the limit groove 19 is welded on the upper end surface of a closed door panel 2, the slide block 9 is distributed symmetrically by the outer curved surfaces of two sides of the screw 5, the outer side of the upper end of the slide block 9 is welded with a pin 10, the top end of the inner side of the closed door panel 2 is welded with a fixed sleeve 11, the outer curved surface of the upper end of the pin 10 is inserted into the inner wall of the fixed sleeve 11, the ground of the lower bottom end of the inner side of a door frame 1 is provided with a groove 12, the inner wall of the groove 12 is jointed with a door sill 13 movably, the outer curved surface of the lower end of the pin 10 is inserted into the upper end surface of the door sill 13, the side of the upper end of the groove 12 is provided with a first internal thread hole 14, the number of the first internal thread holes 14 is three, the side surfaces of the upper end of the groove 12 are distributed symmetrically, the upper end of the door sill 13 is provided with a second internal thread hole 15, and the inner wall of the second internal thread is connected with a bolt through threads, the number of the second internal thread holes 15 is three, the upper end side faces of the doorsill 13 are symmetrically distributed, the first internal thread holes 14 and the second internal thread holes 15 are on the same vertical line, the lower end face of the doorsill 13 is welded with the springs 16, the number of the springs 16 is three, the lower end face of the doorsill 13 is symmetrically distributed, the inner wall of each spring 16 is jointed with the upper limiting pipe 17 in a movable mode, the upper top end of each upper limiting pipe 17 is welded on the lower end face of the doorsill 13, the outer curved surface of the lower end of each upper limiting pipe 17 is jointed with the lower limiting pipe 18 in a movable mode, and the lower bottom end of each lower limiting pipe 18 is welded on the inner bottom face of the groove 12.

The working principle is as follows: when the door frame is used, when the door frame 1 is required to be opened, the inner side of the door frame is hinged to the closed door panel 2, the rotating handle 4 is rotatably connected through the rotating shaft through the inner side of the upper end of the rotating handle 3, when the rotating handle 4 rotates, the screw 5 rotatably connected through the chain can be driven to rotate by the top end of the side of the rotating handle 4, when the screw 5 rotates, the first external thread 6 and the second external thread 7 which are respectively arranged on the outer curved surfaces of the two sides of the screw 5 are driven to linearly move through the slider 9 which is rotatably connected through the threads, the inner walls of the limiting grooves 19 which are movably connected are attached along the end surfaces of the two sides of the slider 9 linearly move, the threads of the first external thread 6 and the second external thread 7 are opposite in direction, so that the slider 9 can simultaneously move inwards when linearly moving due to the threaded connection, the slider 9 can drive the pin column 10 welded on the outer side of the upper end of the slider 9 when moving inwards at the same time, the pin column 10 simultaneously leaves the inner wall of the fixed sleeve 11 welded on the inner side of the closed door panel 2 and the inner wall of the threshold 13 which is attached to the inner wall of the groove 12, the closed door panel can simultaneously leave the inner wall of the fixed sleeve 11 and the inner wall of the door panel 13, so that the door panel can be quickly released by pressing the door panel 13, after the door panel 2 is opened, the closed door panel 2, and then the door panel can be quickly released downwards, and the door panel 2 or the door panel can be quickly released by pressing the door panel 2, and then released downwards through the door panel 2 or the door panel 2, and the door panel can be quickly released downwards;

when the threshold 13 moves downwards along the inner wall of the groove 12, the spring 16 welded on the lower end face of the compressed threshold 13 is pushed, elastic potential energy generated by compression deformation of the spring 16 can reversely push the threshold 13 to move upwards, so that the effect of quickly opening and closing the threshold 13 can be achieved, meanwhile, when the threshold 13 moves downwards, the upper limiting pipe 17 welded on the lower end face of the threshold 13 can be pushed, the lower limiting pipe 18 movably connected along the outer curved surface of the lower end of the upper limiting pipe 17 can move downwards, the bending condition can be prevented when the spring 16 is compressed and deformed through the upper limiting pipe 17 and the lower limiting pipe 18, meanwhile, when the threshold 13 needs to be completely folded downwards, the second internal thread hole 15 formed in the side face of the upper end of the threshold 13 and the first internal thread hole 14 formed in the side face of the upper end of the groove 12 are bolted on the inner wall of the groove 12 through bolts, so that the threshold 13 can be hidden, and vehicles can pass through conveniently.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof steel construction threshold bi-leaf protective airtight door that lives, includes door frame (1), its characterized in that: the inner side of the door frame (1) is hinged with a closed door panel (2), the middle part of the inner end face of the closed door panel (2) is fixedly connected with a support (3), the inner side of the upper end of the support (3) is rotatably connected with a rotating handle (4), the top end of the side of the rotating handle (4) is rotatably connected with a screw (5) through a chain, the outer curved surfaces of the two sides of the middle part of the screw (5) are respectively provided with a first external thread (6) and a second external thread (7), the outer curved surfaces of the two sides of the screw (5) are rotatably connected with a supporting block (8), the outer curved surfaces of the two sides of the screw (5) are connected with a sliding block (9) through threads, the end faces of the two sides of the sliding block (9) are movably connected with a limiting groove (19), the outer side of the upper end of the sliding block (9) is fixedly connected with a pin column (10), the top end of the inner side of the closed door panel (2) is fixedly connected with a fixed sleeve (11), the ground of the lower end of the inner side of the door frame (1) is provided with a groove (12), the inner wall of the groove (12) is movably connected with a door sill (13), the inner wall is movably connected with a sill (12), the inner wall of the groove (12) is movably connected with a sill (13), the upper end hole (14) is connected with a first inner hole (14), the upper end face of the groove (16), the inner hole (16) is connected with a limiting spring (17), the outer curved surface of the lower end of the upper limiting pipe (17) is movably connected with a lower limiting pipe (18).

2. The explosion-proof steel structure movable threshold double-leaf protective airtight door as defined in claim 1, characterized in that: the door frame (1) is an integrated casting forming component, and the lower bottom end of the door frame (1) is embedded in the ground.

3. The explosion-proof steel structure movable threshold double-leaf protective airtight door as defined in claim 1, characterized in that: the number of the closed door plates (2) is two, the inner sides of the door frames (1) are symmetrically distributed, and the lateral top ends of the rotating handles (4) and the outer curved surfaces of the middle parts of the screw rods (5) are respectively and fixedly connected with chain wheels.

4. The steel structure movable threshold double-leaf protective airtight door capable of preventing explosion according to claim 1, characterized in that: the thread orientations of the first external threads (6) and the second external threads (7) are opposite, every two supporting blocks (8) are in a group, the two groups of supporting blocks (8) are symmetrically distributed by using the external curved surfaces on the two sides of the screw (5), and the bottom ends of the supporting blocks (8) are fixedly connected to the upper end surface of the closed door plate (2).

5. The steel structure movable threshold double-leaf protective airtight door capable of preventing explosion according to claim 1, characterized in that: the bottom end of the limiting groove (19) is fixedly connected to the upper end face of the closed door panel (2), the sliding blocks (9) are symmetrically distributed by outer curved surfaces on two sides of the screw rod (5), the outer curved surface at the upper end of the pin column (10) is inserted into the inner wall of the fixing sleeve (11), and the outer curved surface at the lower end of the pin column (10) is inserted into the upper end face of the doorsill (13).

6. The steel structure movable threshold double-leaf protective airtight door capable of preventing explosion according to claim 1, characterized in that: first female screw hole (14) quantity has threely, with recess (12) upper end side symmetric distribution, second female screw hole (15) inner wall threaded connection has the bolt, and second female screw hole (15) quantity has threely, with threshold (13) upper end side symmetric distribution, first female screw hole (14) and second female screw hole (15) are on same vertical line.

7. The explosion-proof steel structure movable threshold double-leaf protective airtight door as defined in claim 1, characterized in that: the number of the springs (16) is three, the springs are symmetrically distributed on the lower end face of the threshold (13), the upper top end of the upper limiting pipe (17) is fixedly connected to the lower end face of the threshold (13), and the lower bottom end of the lower limiting pipe (18) is fixedly connected to the inner bottom face of the groove (12).