Modularized steel fireproof door with quick disassembly and assembly lock catch

The quick-release locking mechanism simplifies the installation and disassembly process of modular steel fire doors, solves the problem of requiring multiple operators in existing technologies, and improves operational efficiency and fire resistance.

CN224049039UActive Publication Date: 2026-03-27ZHEJIANG SANXIN FIRE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing modular steel fire doors require several workers to hold the door and turn the screws during installation and disassembly, which is inconvenient.

Method used

The system employs a quick-release locking mechanism, which includes components such as a connecting seat, lead screw, adjusting block, first door hinge, insertion post, and support post. The door hinge can be inserted and disengaged by rotating the lead screw, simplifying the installation and disassembly process.

Benefits of technology

It enables a single person to quickly install and dismantle fire doors, reducing operating steps and manpower requirements, while enhancing the strength and fire resistance of the door body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel fireproof doors, and discloses a modularized steel fireproof door with a quick dismounting and mounting lock catch, which comprises a steel fireproof door body, a dismounting and mounting mechanism is arranged outside the steel fireproof door body, a fireproof mechanism is arranged outside the steel fireproof door body, the dismounting and mounting mechanism comprises a connecting seat and a supporting seat, a lead screw is rotatably connected to the inner side of the connecting base, an adjusting block is in threaded connection with the outer portion of the lead screw, a first door shaft is fixedly connected to the outer portion of the adjusting block, an inserting column is inserted into the bottom of the first door shaft, a second door shaft is fixedly connected to the bottom of the inserting column, and a supporting column is hinged to one end of the supporting base. According to the modularized steel fireproof door with the quick dismounting and mounting lock catch, dismounting of the steel fireproof door is completed through the dismounting and mounting mechanism, dismounting by rotating bolts and other objects is not needed, and therefore the effect of directional dismounting and mounting is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel fireproof door technical field, concretely is modular steel fireproof door with quick dismounting lock catch. BACKGROUND

[0002] Steel fireproof door is a kind of safety door specially designed to prevent fire spreading. This door is usually made of steel, has excellent fire resistance, is widely used in commercial buildings, industrial facilities and public places, steel fireproof door usually has long service life, and maintenance cost is lower, which makes them more attractive in commercial and industrial environments, with the increasing importance of people to fire safety, steel fireproof door gradually popular, become the important component of modern building safety design.

[0003] The existing modular steel fireproof door has some problems in use, for example, the existing steel fireproof door is installed in the process, and a hinge is used for installation and fixation between door frame and door body, so when installing and dismounting the door frame, multiple workers are needed to hold the door body, and then the screw is rotated to achieve installation and dismounting effect, which is relatively inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing modular steel fireproof door with quick dismounting lock catch to solve the problems of the existing modular steel fireproof door in use in the background art, for example, the existing steel fireproof door is installed in the process, and a hinge is used for installation and fixation between door frame and door body, so when installing and dismounting the door frame, multiple workers are needed to hold the door body, and then the screw is rotated to achieve installation and dismounting effect, which is relatively inconvenient.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: modular steel fireproof door with quick dismounting lock catch, including steel fireproof door body, the outside of steel fireproof door body is provided with dismounting mechanism, the outside of steel fireproof door body is provided with fire prevention mechanism;

[0006] The dismounting mechanism includes connecting seat and support seat, the inner side of connecting seat is rotatably connected with lead screw, the outside of lead screw is connected with adjusting block, the outside of adjusting block is fixedly connected with first door shaft, the bottom of first door shaft is inserted with inserting column, the bottom of inserting column is fixedly connected with second door shaft, one end of support seat is hingedly connected with support column, the inner side of support column is screw-connected with adjusting column.

[0007] Preferably, one end of the connecting seat and one end of the supporting column are fixedly connected with one end of the steel fireproof door body, and one end of the adjusting block is in sliding connection with the inner side of the connecting seat.

[0008] Preferably, the outer part of the lead screw is fixedly connected with a rotating block, and the outer part of the inserting column is provided with a gasket.

[0009] Preferably, the outer part of the adjusting column is fixedly connected with a shock pad, and the outer part of the steel fireproof door body is fixedly connected with a clamping seat.

[0010] Preferably, the fireproof mechanism comprises a fireproof layer and a protective shell, and the inner side of the protective shell is mounted with a reinforcing rib.

[0011] Preferably, the fireproof layer is arranged on the inner side of the steel fireproof door body, and the fireproof layer comprises, in sequence from inside to outside, a ceramic fiber plate, a nano aerogel felt and a steel honeycomb layer.

[0012] Preferably, the protective shell is fixedly connected on the outer part of the steel fireproof door body, and the reinforcing rib is provided in plurality and is arranged in a staggered manner.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Firstly, the second door shaft is fixed on the wall, then the steel fireproof door body is conveyed to the wall, then the rotating block rotates the lead screw, thereby driving the adjusting block outside the lead screw to descend, so that the first door shaft descends until the first door shaft is inserted with the inserting column at the top of the second door shaft, and the gasket at the inserting column facilitates reducing the impact and vibration of the door in the opening and closing process, simultaneously preventing the first door shaft and the second door shaft from loosening, the installation of the steel fireproof door is completed, when disassembling, the rotating block rotates the lead screw again, so that the adjusting block slides upward in the connecting seat, simultaneously pulling the supporting column hinged with the supporting seat and rotating the adjusting column, so that the adjusting column contacts with the ground and supports the steel fireproof door, since the adjusting block slides upward, thereby driving the first door shaft to move upward, so that the first door shaft is separated from the second door shaft, thereby separating the steel fireproof door from the wall, the disassembly of the steel fireproof door is completed, and the disassembly does not need to be performed by rotating the bolt, thereby achieving the effect of directional disassembly and installation.

[0015] Secondly, the protective shell is arranged on the outer part of the steel fireproof door body, and the reinforcing rib is arranged in the protective shell, thereby enhancing the strength of the steel fireproof door body, simultaneously, the composite fireproof layer of the ceramic fiber plate, the nano aerogel felt and the steel honeycomb layer reduces the weight of the door body while improving the fire resistance limit, thereby achieving the effect of improving the fireproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall perspective view of the utility model.

[0017] Figure 2 It is the perspective view of the first door shaft of the utility model;

[0018] Figure 3 It is the sectional view of the fireproof mechanism of the utility model;

[0019] Figure 4 It is the sectional view of the support column of the utility model.

[0020] Wherein: 1, steel fireproof door body; 2, dismounting mechanism; 3, fireproof mechanism; 21, connecting seat; 22, screw rod; 23, adjusting block; 24, first door shaft; 25, plug-in column; 26, second door shaft; 27, support seat; 28, support column; 29, adjusting column; 31, fireproof layer; 32, protective shell; 33, reinforcing rib. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] The utility model provides the following technical solutions:

[0023] Embodiment one

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 4 The modular steel fireproof door with quick dismounting lock catch comprises a steel fireproof door body 1, a dismounting mechanism 2 arranged outside the steel fireproof door body 1, and a fireproof mechanism 3 arranged outside the steel fireproof door body 1.

[0025] The dismounting mechanism 2 comprises a connecting seat 21 and a support seat 27, the connecting seat 21 is rotationally connected with a bidirectional screw rod 22 at the inner side, the bidirectional screw rod 22 is externally threadedly connected with an adjusting block 23, the adjusting block 23 is fixedly connected with a first door shaft 24 at the outer side, the first door shaft 24 is plugged with a plug-in column 25 at the bottom, the plug-in column 25 is fixedly connected with a second door shaft 26 at the bottom, one end of the support seat 27 is hingedly connected with a support column 28, and the support column 28 is threadedly connected with an adjusting column 29 at the inner side.

[0026] One end of the connecting seat 21 and one end of the support column 28 are both fixedly connected with one end of the steel fireproof door body 1, and one end of the adjusting block 23 is slidingly connected with the inner side of the connecting seat 21.

[0027] The rotating block is fixedly connected to the outside of the bidirectional screw rod 22, and the grommet is arranged on the outside of the insertion column 25.

[0028] The damping pad is fixedly connected to the outside of the adjusting column 29, and the clamping seat is fixedly connected to the outside of the steel fireproof door body 1.

[0029] Through the above technical scheme, the second door shaft 26 is fixed on the wall, and then the steel fireproof door body 1 is transported to the wall, then the rotating block is rotated to rotate the screw rod 22, and then the adjusting block 23 outside the screw rod 22 is lowered, so that the first door shaft 24 is lowered, until the first door shaft 24 is inserted with the insertion column 25 at the top of the second door shaft 26, and the grommet at the insertion column 25 facilitates to reduce the impact and vibration of the door during opening and closing, while preventing the first door shaft 24 and the second door shaft 26 from loosening, completing the installation of the steel fireproof door. When disassembling, the rotating block is rotated again to rotate the screw rod 22, so that the adjusting block 23 slides upward in the connecting seat 21, while pulling the support column 28 hinged with the support seat 27, and rotating the adjusting column 29, so that the adjusting column 29 is in contact with the ground, supporting the steel fireproof door. Since the adjusting block 23 slides upward, the first door shaft 24 is moved upward, so that the first door shaft 24 is separated from the second door shaft 26, so that the steel fireproof door is separated from the wall, completing the disassembly of the steel fireproof door. No need to disassemble by rotating the bolt and the like, so as to achieve the effect of disassembling and installing in one direction.

[0030] Embodiment two

[0031] Please refer to Figure 1 、 Figure 3 , and on the basis of embodiment one, it is further obtained that the fireproof mechanism 3 comprises a fireproof layer 31 and a protective shell 32, and the inner side of the protective shell 32 is provided with reinforcing ribs 33.

[0032] The fireproof layer 31 is arranged on the inner side of the steel fireproof door body 1, and the fireproof layer 31 comprises, from inside to outside, a ceramic fiber plate, a nano aerogel felt and a steel honeycomb layer.

[0033] The protective shell 32 is fixedly connected to the outside of the steel fireproof door body 1, and the reinforcing ribs 33 are arranged in multiple, and the multiple reinforcing ribs 33 are arranged in a staggered manner.

[0034] Through the above technical scheme, the protective shell 32 is arranged on the outside of the steel fireproof door body 1, and the reinforcing ribs 33 are arranged in the protective shell 32, so as to enhance the strength of the steel fireproof door body 1, and at the same time, the composite fireproof layer 31 of the ceramic fiber plate, the nano aerogel felt and the steel honeycomb layer reduces the weight of the door body while improving the fire resistance limit, so as to improve the fireproof performance.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Modular steel fire door with quick release lock, comprising a steel fire door body (1), characterized in that: The outer part of the steel fireproof door body (1) is provided with a dismounting mechanism (2), and the outer part of the steel fireproof door body (1) is provided with a fireproof mechanism (3); The dismounting mechanism (2) comprises a connecting seat (21) and a supporting seat (27), the inner side of the connecting seat (21) is rotationally connected with a lead screw (22), the outer part of the lead screw (22) is threadedly connected with an adjusting block (23), the outer part of the adjusting block (23) is fixedly connected with a first door shaft (24), the bottom of the first door shaft (24) is inserted with an insertion column (25), the bottom of the insertion column (25) is fixedly connected with a second door shaft (26), one end of the supporting seat (27) is hingedly connected with a supporting column (28), and the inner side of the supporting column (28) is threadedly connected with an adjusting column (29).

2. The modular steel fire door with quick release latch according to claim 1, wherein: One end of the connecting seat (21) and one end of the supporting column (28) are fixedly connected with one end of the steel fireproof door body (1), and one end of the adjusting block (23) is slidingly connected with the inner side of the connecting seat (21).

3. The modular steel fire door with quick release latch according to claim 1, wherein: The outer part of the lead screw (22) is fixedly connected with a rotating block, and the outer part of the insertion column (25) is provided with a gasket.

4. The modular steel fire door with quick release latch according to claim 1, wherein: The outer part of the adjusting column (29) is fixedly connected with a shock-absorbing pad, and the outer part of the steel fireproof door body (1) is fixedly connected with a clamping seat.

5. The modular steel fire door with quick release latch according to claim 1, wherein: The fireproof mechanism (3) comprises a fireproof layer (31) and a protective shell (32), and the inner side of the protective shell (32) is mounted with a reinforcing rib (33).

6. The modular steel fire door with quick release latch of claim 5, wherein: The fireproof layer (31) is arranged on the inner side of the steel fireproof door body (1), and the fireproof layer (31) comprises, from inside to outside, a ceramic fiber plate, a nano aerogel felt and a steel honeycomb layer.

7. The modular steel fire door with quick release latch according to claim 5, wherein: The protective shell (32) is fixedly connected to the outer part of the steel fireproof door body (1), and the reinforcing rib (33) is provided with a plurality of reinforcing ribs (33) arranged in a staggered manner.