CN219220205U

CN219220205U - Protective safety airtight door

Info

Publication number: CN219220205U
Application number: CN202320166534.6U
Authority: CN
Inventors: 李志鹏; 刘万林; 甘立凤; 祝小强; 艾李雄; 李自宾; 李军
Original assignee: Yunnan Yushun Civil Air Defense Equipment Co ltd
Current assignee: Yunnan Yushun Civil Air Defense Equipment Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-20
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a protective safety airtight door which comprises a door frame, wherein the door frame is movably connected with a door body through a hinge, a placing cavity is formed in the door body, bearings are arranged at the inner top and the inner bottom of the placing cavity, a rotating shaft is fixedly connected to the inner side surface of the bearing, a buffer mechanism is arranged in the door body and comprises an energy absorption area and honeycomb filler, the honeycomb filler is filled in the energy absorption area, driven bevel gears are fixedly connected to the surface of the rotating shaft, rotating rods are movably connected to the front side surface and the rear side surface of the door body, and driving bevel gears are fixedly connected to the inner bottom of the rotating rods extending to the placing cavity. Through the structure, the door body can be opened through the hand wheels at the two sides of the door body by arranging the hand wheels at the two sides of the door body, so that the problem that the sealing door is locked is effectively prevented, and the whole buffering performance of the sealing door can be improved through deformation of the energy absorption area effectively by arranging the energy absorption area.

Description

Protective safety airtight door

Technical Field

The utility model relates to the technical field of safety airtight doors, in particular to a protective safety airtight door.

Background

The protective airtight door is usually arranged at the outermost side of a civil air defense entrance and exit, has the functions of blocking shock waves and isolating toxic agents, can block the shock waves, meets corresponding resistance requirements, and adopts a flat-open type reinforced concrete protective airtight door. Dividing according to the number of door leaves, namely a single civil air defense door and a double civil air defense door, wherein the single civil air defense door is generally used for a personnel entrance with smaller size; the double-leaf door is generally used for a large-size vehicle entrance and exit, meanwhile, the reinforced concrete protective airtight door is divided according to the existence of a threshold at the entrance, the fixed threshold and the valve threshold are two types, the existing reinforced concrete protective airtight door can only be opened on one side, the problem that the airtight door is locked easily occurs is solved, meanwhile, the reinforced concrete protective airtight door is of a solid structure, the buffering performance is poor, and therefore the prior art is necessarily improved.

Disclosure of Invention

The utility model aims to provide a protective safety airtight door, which can effectively realize that both sides can be opened, avoid the problem of back locking of the airtight door and improve the buffering performance of the airtight door.

In order to achieve the above-mentioned purpose, provide a protection safety airtight door, including the door frame, the door frame has the door body through hinge swing joint, the cavity of placing has been seted up to the inside of the door body, the bearing is all installed to the interior top and the interior bottom of placing the cavity, the inboard fixed surface of bearing is connected with the pivot, the inside of the door body is provided with buffer gear, buffer gear includes energy-absorbing region and honeycomb filler, the inside in energy-absorbing region is filled to the honeycomb filler, the fixed surface of pivot is connected with driven bevel gear, the equal swing joint in front and back side surface of the door body has the dwang, the dwang extends to the interior bottom fixedly connected with initiative bevel gear of placing the cavity, initiative bevel gear's surface meshes with driven bevel gear's surface. Through setting up the door frame for the convenience carries out the effect of location installation to the door body, place the chamber through the setting and be for carrying out the effect of location installation to pivot and latch segment, be for making things convenient for the pivot to fix a position the installation through setting up the bearing, the effect of frictional force when can also reducing the pivot rotation simultaneously, be for conveniently improving the cushioning properties's of the door body effect through setting up the energy-absorbing district, be for conveniently not influencing the door body cushioning properties through setting up cellular filler, fill the effect of supporting the door body, be for conveniently carrying out the driven effect of transmission through setting up driven bevel gear cooperation initiative bevel gear.

According to the protective safety airtight door, the surface of the rotating shaft is fixedly connected with a spur gear, the surface of the spur gear is meshed with a rack, and one end of the rack is fixedly connected with a locking block. The spur gear is arranged to facilitate the action of driving the rack to drive the locking block to move.

According to the protective safety airtight door, the locking block is movably connected in the placing cavity, a fixing rod is fixedly connected to the inner side surface of the placing cavity, and the surface of the fixing rod is in contact with the surface of the rack. The locking block is arranged to conveniently position and lock the door body, and the fixing rod is arranged to conveniently position the rack.

According to the protective safety airtight door, reserved openings are formed in the left side surface and the right side surface of the door body, the reserved openings are communicated with the placing cavity, and limit grooves are formed in the left side surface and the right side surface of the door frame. The reserved opening is arranged to facilitate the locking block to extend to the outside of the door body to perform the matching function with the limit groove.

According to the protective safety airtight door, the positions of the limiting grooves correspond to the positions of the reserved openings, the positions of the reserved openings correspond to the positions of the locking blocks, and the number of the reserved openings, the number of the limiting grooves and the number of the locking blocks are multiple. Plays a role in conveniently improving the stability of locking and positioning of the door body.

According to the protective safety airtight door, the hand wheels are fixedly connected to the front side surface and the rear side surface of the rotating rod, which are far away from the door body. The hand wheel is arranged to conveniently drive the rotating rod, so that the rotating shaft is driven to rotate through the driving bevel gear matched with the driven bevel gear.

The utility model has the beneficial effects that: the hand wheels are arranged on the two sides of the door body, the door body can be opened through the hand wheels on the two sides, the problem that the sealing door is locked is effectively prevented, and the energy absorption area is arranged, so that the whole buffering performance of the sealing door is effectively improved through deformation of the energy absorption area.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a perspective view showing the external structure of a protective security door according to the present utility model;

FIG. 2 is a front view showing the internal structure of a protective security door according to the present utility model;

FIG. 3 is a top view showing the internal structure of a protective security door according to the present utility model;

fig. 4 is a schematic structural view of a driving bevel gear and a driven bevel gear of the protective safety airtight door.

Legend description:

1. a door frame; 2. a door body; 3. a placement cavity; 4. reserving a port; 5. a limit groove; 6. a rotating shaft; 7. a bearing; 8. spur gears; 9. a rack; 10. a locking block; 11. a drive bevel gear; 12. a driven bevel gear; 13. a rotating lever; 14. an energy absorption region; 15. a honeycomb filler; 16. a hand wheel; 17. and a fixing rod.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1 to 4, the embodiment of the utility model provides a protective safety airtight door, which comprises a door frame 1, wherein the door frame 1 is movably connected with a door body 2 through a hinge, a placement cavity 3 is formed in the door body 2, bearings 7 are respectively arranged at the inner top and the inner bottom of the placement cavity 3, a rotating shaft 6 is fixedly connected with the inner side surface of the bearings 7, a buffer mechanism is arranged in the door body 2 and comprises an energy absorption area 14 and a honeycomb filler 15, the honeycomb filler 15 is filled in the energy absorption area 14, driven bevel gears 12 are fixedly connected with the surfaces of the rotating shaft 6, rotating rods 13 are movably connected with the surfaces of the front side and the rear side of the door body 2, a driving bevel gear 11 is fixedly connected with the inner bottom of the rotating rods 13 extending to the placement cavity 3, the surfaces of the driving bevel gear 11 are meshed with the surfaces of the driven bevel gears 12, the energy absorption area 14 is positioned at the front side and the rear side of the placement cavity 3, and the outer surface of the energy absorption area 14 is made of iron sheet materials.

The surface fixedly connected with straight-tooth wheel 8 of pivot 6, the surface engagement of straight-tooth wheel 8 has rack 9, and the one end fixedly connected with latch segment 10 of rack 9, latch segment 10 swing joint is in the inside of placing the chamber 3, and the inboard surface fixedly connected with dead lever 17 in placing the chamber 3, the surface of dead lever 17 contacts with the surface of rack 9.

The left and right side surfaces of the door body 2 are provided with reserved openings 4, the reserved openings 4 are communicated with the placing cavity 3, the left and right inner side surfaces of the door frame 1 are provided with limit grooves 5, the positions of the limit grooves 5 correspond to the positions of the reserved openings 4, the positions of the reserved openings 4 correspond to the positions of the locking blocks 10, and the number of the reserved openings 4, the number of the limit grooves 5 and the number of the locking blocks 10 are multiple.

The front side surface and the rear side surface of the rotating rod 13 far away from the door body 2 are fixedly connected with a hand wheel 16.

Working principle: during the use, through rotating hand wheel 16 drive dwang 13 and rotate, and then drive bevel gear 11 rotates, and drive bevel gear 11 rotates the back and meshes driven bevel gear 12 and rotate, and then drive pivot 6 rotates, and then spur gear 8 also can follow pivot 6 and rotate in step, and then spur gear 8 meshes with rack 9 direct drive rack 9 with the rack 10 and moves, can realize locking and opening door body 2 like this, when door body 2 receives the impact, and energy-absorbing district 14 can take place deformation and then cushion the impact force that receives.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a protection safety airtight door, includes door frame (1), its characterized in that, door frame (1) have door body (2) through hinge swing joint, place chamber (3) have been seted up to the inside of door body (2), place interior top and interior bottom in chamber (3) and all install bearing (7), the inboard fixedly connected with pivot (6) of bearing (7), the inside of door body (2) is provided with buffer gear, buffer gear includes energy-absorbing region (14) and honeycomb filler (15), the inside in energy-absorbing region (14) is filled to honeycomb filler (15), the equal swing joint of side surface has dwang (13) around pivot (6) of door body (2), the interior bottom fixedly connected with initiative bevel gear (11) of chamber (3) are placed in extension to dwang (13), the surface of initiative bevel gear (11) meshes with the surface of driven bevel gear (12).

2. The protective safety airtight door according to claim 1, wherein a spur gear (8) is fixedly connected to the surface of the rotating shaft (6), a rack (9) is meshed with the surface of the spur gear (8), and a locking block (10) is fixedly connected to one end of the rack (9).

3. The protective safety airtight door according to claim 2, wherein the locking block (10) is movably connected inside the placing cavity (3), a fixing rod (17) is fixedly connected to the inner side surface of the placing cavity (3), and the surface of the fixing rod (17) is in contact with the surface of the rack (9).

4. The protective safety airtight door according to claim 1, wherein the left and right side surfaces of the door body (2) are provided with reserved openings (4), the reserved openings (4) are communicated with the placing cavity (3), and the left and right inner side surfaces of the door frame (1) are provided with limit grooves (5).

5. The protective safety airtight door according to claim 4, wherein the position of the limit groove (5) corresponds to the position of the reserved opening (4), the position of the reserved opening (4) corresponds to the position of the locking block (10), and the number of the reserved openings (4) and the number of the limit grooves (5) and the locking blocks (10) are multiple.

6. A protective safety airtight door according to claim 1, wherein the front side surface and the rear side surface of the rotating rod (13) far away from the door body (2) are fixedly connected with a hand wheel (16).