CN215408285U

CN215408285U - Steel construction protective airtight door

Info

Publication number: CN215408285U
Application number: CN202121215782.2U
Authority: CN
Inventors: 陆曼青; 汪海英
Original assignee: Qianshan Jiuding Precision Machinery Co ltd
Current assignee: Yunnan Huiyan Civil Air Defense Engineering Co.,Ltd.
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-04
Anticipated expiration: 2031-06-01

Abstract

The utility model provides a steel structure protective airtight door which comprises a door frame, two openable door leaves and a lifting device arranged below the door leaves, wherein two positioning columns are arranged in the door frame at intervals, positioning rings are arranged on the door leaves, the positioning rings are sleeved on the positioning columns, a stop block is arranged below the positioning rings and fixed on the positioning columns, and the lifting device comprises a hydraulic cylinder and a lifting threshold. According to the utility model, when the protective airtight door needs to be closed, the door leaf can be jacked up through the lifting device, so that the top of the door leaf and the door frame are sealed, the sealing performance of the protective airtight door is ensured, when the door leaf is opened, three channels with the same size can be formed, and therefore, when people are crowded, three channels can be formed for people to form orderly, and crowding is avoided.

Description

Steel construction protective airtight door

Technical Field

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

Background

The protective airtight door is protective equipment installed on a building, is mainly used for blocking shock waves and isolating toxic gases, and can play a role in protecting and guaranteeing personnel safety when being closed in case of sudden accidents.

The protective airtight door that uses at present all can have certain clearance usually between door leaf and the door frame, and the gap between door leaf top and the door frame can't be sealed, can not guarantee the inside and outside isolated gaseous effect of airtight door like this, has certain not enoughly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects and provides the steel structure protective airtight door.

In order to achieve the purpose, the technical solution of the utility model is as follows: the utility model provides a steel construction protection airtight door, is in including door frame, two openable door leafs and setting the elevating gear of door leaf below, be provided with two interval distribution's reference column in the door frame, be provided with the holding ring on the door leaf, the holding ring cover is established on the reference column, the below of holding ring is provided with the dog, the dog is fixed on the reference column, elevating gear includes pneumatic cylinder and lift threshold, be provided with the confession on the lift threshold the through-hole that the reference column passed, the pneumatic cylinder sets up the below of lift threshold just the output of pneumatic cylinder is fixed on the lift threshold.

Furthermore, the door leaves are respectively provided with a handle.

Furthermore, a door closing pin is arranged on the handle.

Furthermore, a first sealing gasket is arranged between the door leaf and the inner side wall of the door frame, and a second sealing gasket is arranged between the door leaf and the top wall of the door frame.

Furthermore, a third sealing gasket is arranged on the lifting doorsill.

Furthermore, a fourth sealing gasket is respectively arranged on one side, close to the two door leaves, of each door leaf.

Further, the transverse distance between the two positioning columns and the door frame is the same as the transverse distance between the two positioning columns.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the lifting device is arranged, and the door leaf is sleeved on the positioning column through the positioning ring, so that the door leaf can be jacked up through the lifting device when the protective airtight door needs to be closed, the top of the door leaf is sealed with the door frame, and the sealing performance of the protective airtight door is ensured;

2. according to the utility model, the transverse distance between the positioning columns and the door frame is the same as the transverse distance between the two positioning columns, so that when the door leaf is opened, three channels with the same size can be formed, and therefore, when people are crowded, three channels can be formed for people to form in order, and crowding is avoided.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic rear view of an embodiment of the present invention.

Fig. 3 is a schematic rear sectional view illustrating an embodiment of the present invention.

Fig. 4 is a schematic top view of a lifting threshold according to an embodiment of the present invention.

In the figure: 1. a door frame; 2. a door leaf; 3. a lifting device; 11. a positioning column; 21. a positioning ring; 12. a stopper; 31. a hydraulic cylinder; 32. a lifting threshold; 33. a through hole; 22. a handle; 23. a door closing pin; 13. a first gasket; 14. a second gasket; 34. a third gasket; 15. a fourth gasket; 4. mounting a plate; 41. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 4, the steel structure protective airtight door of the present invention includes a door frame 1, two openable door leaves 2, and a lifting device 3 disposed below the door leaves 2, wherein two positioning pillars 11 are disposed in the door frame 1, a positioning ring 21 is disposed on the door leaf 2, the positioning ring 21 is sleeved on the positioning pillar 11, a stop 12 is disposed below the positioning ring 21, the stop 12 is fixed on the positioning pillar 11, the lifting device 3 includes a hydraulic cylinder 31 and a lifting doorsill 32, a through hole 33 for the positioning pillar 11 to pass through is disposed on the lifting doorsill 32, the hydraulic cylinder 31 is disposed below the lifting doorsill 32, and an output end of the hydraulic cylinder 31 is fixed on the lifting doorsill 32.

When the protective airtight door needs to be opened, the hydraulic cylinder 31 is opened to drive the lifting doorsill 32 to descend and then push the door leaf 2 open, the door leaf 2 rotates around the positioning column 11, when the protective airtight door needs to be closed, the two door leaves 2 are firstly closed, then the lifting doorsill 32 is driven to ascend by opening the hydraulic cylinder 31, and when the lifting doorsill 32 contacts the door leaf 2, the door leaf 2 is jacked up, so that the upper end of the door leaf 2 is sealed with the door frame 1.

Preferably, an installation plate 4 is arranged below the door frame 1, an installation groove 41 is arranged in the installation plate 4, and the lifting device 3 is arranged in the installation groove 41.

In one embodiment, the door leaves 2 are respectively provided with a handle 22. This design facilitates the opening and closing of the door leaf 2.

In one embodiment, the handle 22 is provided with a door closing pin 23. By the design, the door leaf 2 can be prevented from being opened by itself when the door leaf 2 is closed.

In an embodiment, a first gasket 13 is disposed between the door leaf 2 and the inner side wall of the door frame 1, and a second gasket 14 is disposed between the door leaf 2 and the top wall of the door frame 1. With this configuration, the sealing performance between the door 2 and the side wall and the ceiling wall of the door frame 1 can be improved.

In one embodiment, a third gasket 34 is disposed on the lifting sill 32. By the design, when the lifting doorsill 32 is contacted with the door leaf 2, the sealing performance between the lifting doorsill 32 and the door leaf 2 is ensured.

In one embodiment, the side of the two door leaves 2 close to each other is provided with a fourth gasket 15. With this arrangement, when the two door leaves 2 are closed, the fourth gasket 15 is raised to seal the contact position of the two door leaves 2.

In an embodiment, a lateral distance between two positioning pillars 11 and the door frame 1 is the same as a lateral distance between two positioning pillars 11. By the design, three channels with the same size can be formed when the door leaf 2 is opened, so that people can conveniently and orderly pass through the channels under the crowded condition.

The utility model provides a steel structure protective airtight door, when the protective airtight door needs to be opened, a door closing pin is pulled out from a handle, then a hydraulic cylinder is started to drive a lifting doorsill to descend, two door leaves are opened, three channels can be formed, people can conveniently walk in order, crowds are avoided, when the protective airtight door needs to be closed, the two door leaves are firstly closed, then the lifting doorsill is jacked up through the hydraulic cylinder, when the lifting doorsill contacts the door leaves, the door leaves are jacked up, so that the top of the door leaves extrudes a second sealing gasket, sealing between the upper end of the door leaves and a door frame is realized, and then the door closing pin is inserted between the handles, so that the sealing performance of the protective airtight door is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a steel construction protective airtight door which characterized in that: including door frame (1), two openable door leafs (2) and setting are in elevating gear (3) of door leaf (2) below, be provided with two interval distribution's reference column (11) in door frame (1), be provided with holding ring (21) on door leaf (2), holding ring (21) cover is established on reference column (11), the below of holding ring (21) is provided with dog (12), dog (12) are fixed on reference column (11), elevating gear (3) include pneumatic cylinder (31) and lift threshold (32), be provided with the confession on lift threshold (32) through-hole (33) that reference column (11) passed, pneumatic cylinder (31) set up the below of lift threshold (32) just the output of pneumatic cylinder (31) is fixed on lift threshold (32).

2. The steel structural containment door of claim 1, wherein: the door leaves (2) are respectively provided with a handle (22).

3. The steel structural containment door of claim 2, wherein: the handle (22) is provided with a door closing pin (23).

4. The steel structural containment door of claim 1 or 2, wherein: a first sealing gasket (13) is arranged between the door leaf (2) and the inner side wall of the door frame (1), and a second sealing gasket (14) is arranged between the door leaf (2) and the top wall of the door frame (1).

5. The steel structural containment door of claim 1 or 2, wherein: and a third sealing gasket (34) is arranged on the lifting doorsill (32).

6. The steel structural containment door of claim 1 or 2, wherein: and one sides of the two door leaves (2) close to each other are respectively provided with a fourth sealing gasket (15).

7. The steel structural containment door of claim 1 or 2, wherein: the transverse distance between the two positioning columns (11) and the door frame (1) is the same as the transverse distance between the two positioning columns (11).