Waterproof steel structure double-leaf air-tight door

By installing a support plate and a latch structure on the bottom of the airtight door, the weight of the door is supported, solving the problem of wear and tear on rotating parts when the airtight door is opened, and achieving stable opening and closing of the airtight door.

CN223908092UActive Publication Date: 2026-02-13SHANGHAI YUEYOU CIVIL AIR DEFENSE ENG CO LTD
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Patent Information

Application Number
CN202423291468.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-02-13
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

When existing waterproof steel double-leaf airtight doors are opened, the weight of the door is concentrated on the rotating parts, causing rapid wear and tear on the rotating parts.

Method used

A support plate and a latch structure are installed on the bottom surface of the airtight door. The support plate flips to support the weight of the airtight door when it is opened, reducing the force on the rotating connector. It is also locked in place by forming a tripod structure through a height adjustment device.

Benefits of technology

It reduces wear on rotating connectors, extends the service life of the airtight door, and ensures stable door closure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223908092U_ABST
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Abstract

The utility model relates to the technical field of waterproof steel structure double-leaf air-tight doors, in particular to a waterproof steel structure double-leaf air-tight door which comprises a door frame, two air-tight door bodies are symmetrically arranged in the door frame, and the air-tight door bodies are rotationally connected with the surface of the door frame through rotating connecting pieces. Two first sliding grooves are symmetrically formed in the inner frame face of the door frame, supporting plates are rotationally connected to the interiors of the two first sliding grooves correspondingly, and the top faces of the supporting plates make contact with the bottom face of the airtight door. Through the arrangement of the supporting plate, in the opening process of the air-tight door, the supporting plate is always supported on the bottom face of the air-tight door, so that part of the weight of the air-tight door falls on the supporting plate, the acting force on the rotary connecting piece is reduced, and then the loss of the rotary connecting piece is relieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water -resistant type steel structure double -leaf airtight door field especially relates to a water -resistant type steel structure double -leaf airtight door. BACKGROUND

[0002] Sealing door, often in underground parking lot and underground shopping mall and so on place, these door frame and door leaf constitute the sealing door firm and durable. Especially worth noting, the edge of sealing door is carefully installed a circle sealing rubber strip, this rubber strip not only has outstanding sealing and airtight performance, can also effectively prevent dust, prevent rain, and have the characteristics of aging resistance. In the face of flood or fire and so on extreme situation, sealing door can play its essential role, provides solid guarantee for people's life and property safety.

[0003] The existing water -resistant type steel structure double -leaf airtight door, after pushing airtight door leaves door frame, only the rotating part on the door frame is supporting airtight door, since airtight door generally all is heavier, the weight of whole sealing door will concentrate on the rotating part when opening state, will accelerate the loss to rotating part. UTILITY MODEL CONTENTS

[0004] The utility model discloses a water -resistant type steel structure double -leaf airtight door to solve the shortcomings in the prior art.

[0005] To achieve the above object, the utility model adopts the technical scheme, a water -resistant type steel structure double -leaf airtight door, including door frame, the door frame is symmetrically provided with two airtight doors in, the airtight door with the door frame surface is through the rotating connecting piece rotation and is connected, the inner frame surface of door frame is symmetrically opened and is provided with two first sliding slot, two the inside of first sliding slot all rotationally connected with support plate, the top surface of support plate and airtight door bottom surface contact, the top end of support plate is opened and is provided with second sliding slot, the second sliding slot is slidably connected with the bolt, the bolt is set up on the bottom surface of airtight door.

[0006] Should understand, after pushing airtight door leaves door frame, only the rotating connecting piece on the door frame is supporting airtight door, since airtight door generally all is heavier, the weight of whole sealing door will concentrate on the rotating connecting piece when opening state, will accelerate the loss to rotating part, the technical scheme of the utility model can solve above -mentioned problem, and the specific technical scheme is as follows:

[0007] In the process of opening airtight door, airtight door leaves door frame under the support of rotating connecting piece, and the bolt on the bottom surface of airtight door will act second sliding slot, drive support plate overturn, and support plate always supports the bottom surface of the sealing door, so that a part of the weight of airtight door falls on the support plate, reduces the acting force to rotating connecting piece, and then is favorable for slowing down the loss to rotating connecting piece.

[0008] As a further optimization of the technical scheme, the second chute interior bottom surface is provided with a limiting hole matched with the bolt, the surface of the two said closed doors is provided with a mounting groove, the mounting groove interior bottom surface is provided with a communication hole, the bolt is connected in the communication hole, and the mounting groove is further provided with a height adjusting device for adjusting the height of the bolt.

[0009] It should be understood that when the closed door needs to be locked after being closed, the height of the bolt is adjusted by the height adjusting device, so that the bolt is inserted into the limiting hole to limit the sliding of the bolt in the second chute. Therefore, the rotation points of the closed door and the door frame, the rotation points of the support plate and the door frame, and the connection points of the bolt and the support plate are determined, so that a tripod structure is formed between the door frame, the support plate and the closed door, and the closed state of the closed door is locked and positioned.

[0010] As an optional technical scheme, the height adjusting device comprises a guide block fixedly connected to the top end of the bolt, a guide groove is formed in the surface of the guide block, the guide groove comprises a first horizontal groove, an inclined groove and a second horizontal groove, a guide pin is slidably arranged in the guide groove, one end of the guide pin is slidably connected to the inner wall of the mounting groove through a sliding rail, and the other end of the guide pin is fixedly connected with a pushing block.

[0011] As a further optimization of the technical scheme, the elastic member is connected between the bolt and the inner wall of the mounting groove, the elastic member comprises a limiting ring and a supporting spring, the limiting ring is fixedly sleeved on the surface of the bolt, the supporting spring is movably sleeved on the surface of the bolt, and the two ends of the supporting spring are fixedly connected with the limiting ring and the inner bottom surface of the mounting groove respectively.

[0012] As an optional technical scheme, the sliding rail comprises a connecting rail and a sliding block, the connecting rail is fixedly installed on the inner wall of the mounting groove, the sliding block is connected to the connecting rail, and the end surface is fixedly connected with the guide pin.

[0013] As a further optimization of the technical scheme, the mounting groove is fixedly connected with a sealing plate at the opening, the sealing plate is provided with a gap groove, the guide pin passes through the gap groove, and the pushing block is in sliding contact with the surface of the sealing plate.

[0014] As a further optimization of the technical scheme, the pushing block is fixedly connected with a sliding baffle on the surface, the sliding baffle is in contact with the sealing surface, and the gap groove is shielded.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By setting the support plate, in the process of opening the sealing door, the support plate is always supported on the bottom surface of the sealing door, so that part of the weight of the sealing door falls on the support plate, reducing the force on the rotating connecting piece, thereby facilitating the reduction of the wear of the rotating connecting piece.

[0017] By adjusting the height of the bolt through the height adjusting device, the bolt is inserted into the limiting hole to limit the sliding of the bolt in the second sliding groove, so that the rotation point of the sealing door and the door frame, the rotation point of the support plate and the door frame, and the connection point of the bolt and the support plate are determined, so that a tripod structure is formed between the door frame, the support plate and the sealing door, and the closing state of the sealing door is locked and positioned. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the overall structure of the utility model;

[0019] Figure 2 It is a sectional view of the overall structure of the utility model;

[0020] Figure 3 It is Figure 2 It is an enlarged view of part A;

[0021] Figure 4 It is an exploded view of the height adjusting device of the utility model;

[0022] Figure 5 It is a schematic view of the structure of two sealing doors of the utility model;

[0023] Figure 6 It is a schematic view of the structure of the door frame of the utility model.

[0024] In the drawing: door frame 1, sealing door 2, sealing strip 201, handle 202, rotating connecting piece 3, first sliding groove 4, support plate 5, second sliding groove 6, bolt 7, limiting hole 8, mounting groove 9, communication hole 10, guide block 11, horizontal groove 12, inclined groove 13, guide pin 14, pushing block 15, limiting ring 16, support spring 17, rail connecting track 18, sliding block 19, sealing plate 20, accommodation groove 21, sliding baffle 22, second horizontal groove 23. DETAILED DESCRIPTION

[0025] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and those skilled in the art can think of other obvious modifications.

[0026] As Figures 1 to 6The utility model provides an illustrated water -proof type steel structure double -leaf airtight door, including door frame 1, two airtight doors 2 are symmetrically arranged in door frame 1, and the airtight door 2 is rotatably connected with the surface of door frame 1 through rotating connecting piece 3, and the inner frame surface of door frame 1 is symmetrically provided with two first sliding grooves 4, the inside of two first sliding grooves 4 is rotatably connected with support plate 5, the top surface of support plate 5 is in contact with the bottom surface of airtight door 2, and the top end of support plate 5 is provided with second sliding groove 6, and the second sliding groove 6 is slidably connected with bolt 7, and bolt 7 is arranged on the bottom surface of airtight door 2.

[0027] It should be understood that after pushing the airtight door 2 away from the door frame 1, only the rotating connecting piece 3 on the door frame 1 supports the airtight door 2, since the airtight door 2 is generally relatively heavy, the weight of the entire airtight door 2 will concentrate on the rotating connecting piece 3 in the open state, which will accelerate the wear of the rotating part, and the embodiment of the utility model can solve the above problems, and the specific implementation manner is as follows:

[0028] In the process of opening the airtight door 2, the airtight door 2 leaves the door frame 1 under the support of the rotating connecting piece 3, and the bolt 7 on the bottom surface of the airtight door 2 will act on the second sliding groove 6, drive the support plate 5 to overturn, and the support plate 5 is always supported on the bottom surface of the airtight door 2, so that part of the weight of the airtight door 2 falls on the support plate 5, the acting force on the rotating connecting piece 3 is reduced, and then the wear of the rotating connecting piece 3 is slowed down.

[0029] Specifically, the edge of one of the airtight doors 2 has an extended sealing strip 201, which is used to seal the gap between the two airtight doors 2 when the two airtight doors 2 are closed, and is conducive to water isolation.

[0030] Specifically, the surface of the airtight door is fixedly provided with a handle 202, which facilitates pushing or pulling by the staff.

[0031] As a further optimized embodiment, the second sliding groove 6 is provided with a limiting hole 8 on the inner bottom surface, which is adapted for use with the bolt 7, the surface of the two airtight doors 2 is provided with a mounting groove 9, the inner bottom surface of the mounting groove 9 is provided with a communication hole 10, the bolt 7 penetrates and connects in the communication hole 10, and the mounting groove 9 is further provided with a height adjusting device for adjusting the height of the bolt 7.

[0032] It should be understood that after the airtight door 2 is closed, it needs to be locked, the height of the bolt 7 is adjusted by the height adjusting device, so that the bolt 7 is inserted into the limiting hole 8, and the sliding of the bolt 7 in the second sliding groove 6 is limited, so the rotation points of the airtight door 2 and the door frame 1, the rotation points of the support plate 5 and the door frame 1, and the connection points of the bolt 7 and the support plate 5 are all determined, so a tripod structure is formed between the door frame 1, the support plate 5 and the airtight door 2, and the closed state of the airtight door 2 is locked and positioned.

[0033] As an optional implementation, the height adjusting device comprises a guide block 11 fixedly connected to the top end of the latch 7, the guide block 11 is provided with a guide groove on the surface, the guide groove comprises a first horizontal groove 12, an inclined groove 13 and a second horizontal groove 23, a guide pin 14 is slidably arranged in the guide groove, one end of the guide pin 14 is slidably connected with the inner wall of the mounting groove 9 through a sliding rail, and the other end of the guide pin 14 is fixedly connected with a pushing block 15.

[0034] It should be understood that, as shown in Figure 3 , the sealing door 2 is in a locked state, when it is necessary to release the locked state, the pushing block 15 is pushed to drive the guide pin 14 to move, the guide pin 14 moves from the first horizontal groove 12 to the inclined groove 13, in the process of moving in the inclined groove 13, the guide block 11 is pushed to move upwardly, so that the guide block 11 drives the latch 7 to move upwardly, so that the latch 7 is separated from the limiting hole 8, and the locked positioning of the sealing door 2 is cancelled.

[0035] It should be further explained that, when it is necessary to lock, after the sealing door 2 is closed, the pushing block 15 is moved to the state as shown in Figure 3 , so that the guide pin 14 moves to the second horizontal groove 23, at this time, the latch 7 is inserted into the limiting hole 8 to form the locked positioning.

[0036] As a further optimized implementation, the latch 7 is connected with the inner wall of the mounting groove 9 through a resilient member, the resilient member comprises a limiting ring 16 and a supporting spring 17, the limiting ring 16 is fixedly sleeved on the surface of the latch 7, and the supporting spring 17 is movably sleeved on the surface of the latch 7, and the two ends of the supporting spring 17 are fixedly connected with the limiting ring 16 and the inner bottom surface of the mounting groove 9 respectively.

[0037] It should be understood that, by arranging the supporting spring 17 and the limiting ring 16, the supporting of the latch 7 is realized, after the guide pin 14 is pushed out of the first horizontal groove 12, the supporting spring 17 can provide a force under the action of the supporting spring 17, so that the guide pin 14 is not pushed completely, and the latch 7 is inserted into the limiting hole 8 under the action of gravity.

[0038] As an optional implementation, the sliding rail comprises a connecting rail 18 and a sliding block 19, the connecting rail 18 is fixedly installed on the inner wall of the mounting groove 9, and the sliding block 19 is connected to the connecting rail 18 and fixedly connected with the end surface of the guide pin 14.

[0039] It should be understood that, by arranging the connecting rail 18 and the sliding block 19, the moving track of the guide pin 14 is limited, and the sliding support is always maintained.

[0040] As a further optimized implementation, the opening of the mounting groove 9 is fixedly connected with a sealing plate 20, the sealing plate 20 is provided with a gap groove 21, the guide pin 14 passes through the gap groove 21, and the pushing block 15 is in sliding contact with the surface of the sealing plate 20.

[0041] It should be understood that by setting the sealing plate 20, the opening of the mounting groove 9 is shielded, which is conducive to reducing the dust entering the mounting groove 9.

[0042] By setting the accommodation groove 21, the guide pin 14 is accommodated.

[0043] As a further optimized embodiment, the pushing block 15 is fixedly connected with a sliding baffle 22 on the surface, the sliding baffle 22 is in contact with the sealing surface, and is used for shielding the accommodation groove 21.

[0044] It should be understood that by setting the sliding baffle 22, the sliding baffle 22 always shields the accommodation groove 21 during the movement of the pushing block 15, cooperates with the sealing plate 20, realizes the sealing shielding of the opening of the mounting groove 9, and is conducive to preventing the dust from entering and causing the pollution of the components in the mounting groove 9.

[0045] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A water isolation type steel structure double-leaf sealed door, comprising a door frame (1), two symmetrical sealed doors (2) are arranged in the door frame (1), the sealed doors (2) are rotatably connected with the surface of the door frame (1) through a rotating connecting piece (3), characterized in that, Two first sliding grooves (4) are symmetrically arranged on the inner frame surface of the door frame (1), and a supporting plate (5) is rotatably connected to the inner portion of each of the first sliding grooves (4).

2. A water-resisting steel structure double-leaf sealed door according to claim 1, characterized in that, A limiting hole (8) is arranged on the inner bottom surface of the second sliding groove (6) and is adapted to the bolt (7), and an installation groove (9) is arranged on the surface of each of the two sealing doors (2).

3. A water-resisting steel structure double-leaf sealed door according to claim 2, characterized in that, The height adjusting device comprises a guide block (11) fixedly connected to the top end of the bolt (7), a guide groove is arranged on the surface of the guide block (11), the guide groove comprises a first horizontal groove (12), an inclined groove (13) and a second horizontal groove (23), a guide pin (14) is slidably arranged in the guide groove, one end of the guide pin (14) is slidably connected to the inner wall of the installation groove (9) through a sliding rail, and the other end of the guide pin (14) is fixedly connected to a pushing block (15).

4. A water-resisting steel structure double-leaf sealed door according to claim 3, characterized in that, An elastic member is connected between the bolt (7) and the inner wall of the installation groove (9), the elastic member comprises a limiting ring (16) and a supporting spring (17), the limiting ring (16) is fixedly sleeved on the surface of the bolt (7), and the supporting spring (17) is movably sleeved on the surface of the bolt (7) and fixedly connected to the limiting ring (16) and the inner bottom surface of the installation groove (9).

5. A water-resisting steel structure double-leaf sealed door according to claim 3, characterized in that, The sliding rail comprises a connecting track (18) and a sliding block (19), the connecting track (18) is fixedly installed on the inner wall of the installation groove (9), the sliding block (19) is connected to the connecting track (18), and the end surface is fixedly connected to the guide pin (14).

6. A water-resisting steel structure double-leaf sealed door according to claim 3, characterized in that, A sealing plate (20) is fixedly connected to the opening of the installation groove (9), a gap groove (21) is arranged on the sealing plate (20), the guide pin (14) passes through the gap groove (21), and the pushing block (15) is in sliding contact with the surface of the sealing plate (20).

7. A water-resisting steel structure double-leaf sealed door according to claim 6, characterized in that, A sliding baffle (22) is fixedly connected to the surface of the pushing block (15), the sliding baffle (22) is in contact with the sealing surface and is used for shielding the gap groove (21).