Fireproof door convenient to disassemble and maintain

By designing grooves, rotating rods, and guide rail grooves on fire doors, the problem of inconvenient fire door disassembly has been solved, enabling quick disassembly and simplified operation, and improving maintenance efficiency.

CN223908108UActive Publication Date: 2026-02-13ZHEJIANG ZHENGHE IND & TRADE CO LTD
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Patent Information

Application Number
CN202520506981.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-13
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

The existing fire doors are inconvenient to disassemble, resulting in high labor intensity during maintenance and affecting the progress of maintenance work.

Method used

A fire door structure was designed, including a groove on the door frame, a rotating rod, a drive sleeve, a guide rail groove, and a connecting hinge. Through the cooperation of these components, the fire door can be quickly disassembled, simplifying the operation process.

Benefits of technology

It enables rapid disassembly of fire doors, reduces labor intensity, improves maintenance efficiency, and facilitates the disassembly and maintenance work of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fireproof doors, in particular to a fireproof door convenient to disassemble and maintain, which comprises a fireproof door body and a door frame positioned on the outer side of the fireproof door body, the groove is formed in the right side in the door frame, a positioning clamping groove is formed in the top of the inner wall of the groove, a rotating rod is movably connected to the middle end of the bottom of the inner wall of the groove through a bearing, the upper end of the rotating rod is sleeved with a driving sleeve, and a guide rail groove is formed in the inner wall of the driving sleeve. Under the action of the deflector rod, the driving sleeve and the guide rail groove, the fireproof door has the advantage of being convenient to disassemble and maintain, and the problems that a fireproof door in the existing market is inconvenient to disassemble, so that the fireproof door is difficult to disassemble in the daily maintenance process, the labor intensity of workers is large, and the maintenance cost is low are solved. And the disassembly work and the follow-up maintenance work of workers are not facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof door technical field, concretely is a kind of fireproof door of convenient disassembly maintenance. BACKGROUND

[0002] Fireproof door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation for a certain time, it is the fireproof partition with certain fire resistance, which is arranged between fire compartment, evacuation stairway and vertical shaft, and has the function of preventing fire spreading and smoke diffusion, which can prevent fire spreading for a certain time and ensure personnel evacuation.

[0003] At present, the fireproof door on the existing market has the inconvenience of disassembly, which leads to the difficulty of disassembly in the daily maintenance process, and the labor intensity of workers is large, which is not conducive to the disassembly work of workers and the follow-up maintenance work, therefore, we provide a kind of fireproof door of convenient disassembly maintenance. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of fireproof door of convenient disassembly maintenance, with the advantage of convenient disassembly maintenance, solve the inconvenience of disassembly of the fireproof door on the existing market, which leads to the difficulty of disassembly in the daily maintenance process, and the labor intensity of workers is large, which is not conducive to the disassembly work of workers and the follow-up maintenance work.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of fireproof door of convenient disassembly maintenance, including fireproof door body, further including:

[0006] Door frame located at the outer side of fireproof door body;

[0007] Groove opened in the right side of the door frame interior, the top of the groove inner wall is equipped with positioning slot, the middle end of the groove inner wall bottom is movably connected with rotating rod by bearing, the upper end of the rotating rod is equipped with driving sleeve, the inner wall of the driving sleeve is equipped with guide rail slot, the upper end of the rotating rod right side is fixedly connected with guide protrusion sliding in guide rail slot, the lower end of the rotating rod rear side is fixedly connected with lever, the outer side of the lever is provided with U-shaped limit seat, the top of the driving sleeve is fixedly connected with support plate, the top of the support plate is placed with convex block with upper end clamped in positioning slot;

[0008] The connecting hinge is fixedly installed between the left side of the convex block and the right side of the fireproof door body.

[0009] Preferably, the front of the fireproof door body is provided with a handle.

[0010] Preferably, the number of grooves is three, and the distance between adjacent two grooves is equal.

[0011] Preferably, the lower end of the right side of the inner wall of the groove is provided with a first guide slot, and the middle end of the right side of the supporting plate is fixedly connected with a first guide sliding block sliding in the first guide slot.

[0012] Preferably, the guide rail slot is a half-circle-shaped rail slot spirally upward.

[0013] Preferably, the lower end of the rear side of the inner wall of the groove is provided with a second guide slot, and the rear side of the U-shaped limiting seat is fixedly connected with a second guide sliding block sliding in the second guide slot.

[0014] Preferably, the lower end of the left side of the supporting plate is hingedly connected with a shielding plate matched with the lower end of the groove.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. When the U-shaped limiting seat is stably moved upward in the groove through the cooperation of the second guide slot and the second guide sliding block, the U-shaped limiting seat can exit the position limitation on the lever, then when the rotating rod is turned outward by one hundred and eighty degrees through the lever, and under the assistance of the first guide slot and the first guide sliding block, the rotating rod can drive the guide protrusion to slide in the guide rail slot of the driving sleeve, and when the first guide sliding block slides in the first guide slot, the stable downward movement of the supporting plate and the driving sleeve is ensured, and when the supporting plate moves downward, the convex block moves downward synchronously, after the upper end of the convex block exits the positioning clamping groove, the convex block can be driven to exit the groove through the fireproof door body and the connecting hinge, so that the fireproof door body can be quickly disassembled, the operation is simple, the use is convenient, and the disassembly and maintenance work of the staff is facilitated.

[0017] 2. The utility model has simple structure, saves time and effort in operation, and can effectively improve the disassembly and maintenance efficiency of the staff. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 It is an explosion structure schematic view of the utility model;

[0020] Figure 3 It is a door frame structure schematic view of the utility model;

[0021] Figure 4 It is a cooperation structure schematic view of the driving sleeve and the rotating rod of the utility model.

[0022] In the figure: 1, fireproof door body; 101, handle; 102, connecting hinge; 2, door frame; 3, recess; 301, first guide sliding slot; 302, second guide sliding slot; 303, positioning clamping groove; 304, convex block; 305, first guide sliding block; 306, driving sleeve; 307, second guide sliding block; 308, U-shaped limiting seat; 309, lever; 310, rotating rod; 311, guide convex block; 312, support plate; 313, guide rail slot; 4, shielding plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The fireproof door body 1, the handle 101, the connecting hinge 102, the door frame 2, the groove 3, the first guide sliding groove 301, the second guide sliding groove 302, the positioning clamping groove 303, the convex block 304, the first guide sliding block 305, the driving sleeve 306, the second guide sliding block 307, the U-shaped limiting seat 308, the push rod 309, the rotating rod 310, the guide convex block 311, the supporting plate 312, the guide rail groove 313 and the shielding plate 4 parts of the fireproof door are all general standard parts or parts known by those skilled in the art, and the structure and principle thereof can be known by the technical personnel through a technical manual or through a conventional experimental method. EMBODIMENT

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: a fireproof door which can be conveniently disassembled and maintained, comprising a fireproof door body 1, further comprising:

[0028] A door frame 2 located on the outer side of the fireproof door body 1;

[0029] A groove 3 is opened in the right side of the inner side of the door frame 2, the top of the inner wall of the groove 3 is provided with a positioning clamping groove 303, the middle end of the bottom of the inner wall of the groove 3 is movably connected with a rotating rod 310 through a bearing, the upper end of the rotating rod 310 is sleeved with a driving sleeve 306, the inner wall of the driving sleeve 306 is provided with a guide rail groove 313, the upper end of the right side of the rotating rod 310 is fixedly connected with a guide convex block 311 which slides in the guide rail groove 313, the lower end of the rear side of the rotating rod 310 is fixedly connected with a push rod 309, the outer side of the push rod 309 is provided with a U-shaped limiting seat 308, the top of the driving sleeve 306 is fixedly connected with a supporting plate 312, the top of the supporting plate 312 is placed with a convex block 304 which is clamped into the positioning clamping groove 303;

[0030] The connecting hinge 102 is fixedly installed between the left side of the convex block 304 and the right side of the fireproof door body 1.

[0031] The front surface of the fireproof door body 1 is provided with a handle 101, the number of the grooves 3 is three, the distance between adjacent two grooves 3 is equal, the lower end of the right side of the inner wall of the groove 3 is provided with a first guide sliding groove 301, the middle end of the right side of the supporting plate 312 is fixedly connected with a first guide sliding block 305 which slides in the first guide sliding groove 301, the guide rail groove 313 is a half circle shaped rail groove which spirally upwards, the lower end of the rear side of the inner wall of the groove 3 is provided with a second guide sliding groove 302, the rear side of the U-shaped limiting seat 308 is fixedly connected with a second guide sliding block 307 which slides in the second guide sliding groove 302.

[0032] The technical scheme: through the cooperation of the connecting hinge 102, the handle 101 drives the fireproof door body 1 to open outward in the door frame 2, then, under the assistance of the second guide sliding groove 302 and the second guide sliding block 307, the U-shaped limiting seat 308 is driven to move upward stably in the groove 3, then the U-shaped limiting seat 308 can exit the position limitation of the push rod 309, then the push rod 309 drives the rotating rod 310 to turn outward by 180 degrees, and under the assistance of the first guide sliding groove 301 and the first guide sliding block 305, the rotating rod 310 can drive the guide block 311 to slide in the guide rail groove 313 of the driving sleeve 306, when the first guide sliding block 305 slides in the first guide sliding groove 301, the stable downward movement of the supporting plate 312 and the driving sleeve 306 is ensured, and when the supporting plate 312 moves downward, the convex block 304 is driven to move downward synchronously, after the upper end of the convex block 304 exits the positioning clamping groove 303, the convex block 304 can be driven to exit the groove 3 through the fireproof door body 1 and the connecting hinge 102, and the quick disassembly of the fireproof door body 1 can be realized, which is simple to operate, convenient to use and beneficial to the disassembly and maintenance work of the staff. Embodiment

[0033] Based on the embodiment one, the utility model discloses as shown in Figures 1-4 The lower end of the left side of the supporting plate 312 is movably connected with a shielding plate 4 matched with the lower end of the groove 3 through a hinge.

[0034] The technical scheme: through the setting of the shielding plate 4, when the fireproof door body 1 is installed, and under the assistance of the hinge, the shielding plate 4 can be located at the lower end of the groove 3, which can shield and protect the fireproof door body 1, ensure the appearance of the inside of the door frame 2 when the fireproof door body 1 is opened, and when the fireproof door body 1 is disassembled, the shielding plate 4 can be turned outward under the assistance of the hinge, which does not affect the disassembly operation of the fireproof door body 1.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, and are not limited to the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A fire door which can be easily disassembled and maintained, comprising a fire door body (1), characterized in that, Also includes: The door frame (2) is located outside the fireproof door body (1); The recess (3) is opened in the right side of the inner door frame (2), the top of the inner wall of the recess (3) is provided with a positioning slot (303), the middle end of the bottom of the inner wall of the recess (3) is movably connected with a rotating rod (310) through a bearing, the upper end of the rotating rod (310) is provided with a driving sleeve (306), the inner wall of the driving sleeve (306) is provided with a guide rail slot (313), the upper end of the right side of the rotating rod (310) is fixedly connected with a guide protrusion (311) sliding in the guide rail slot (313), the lower end of the rear side of the rotating rod (310) is fixedly connected with a lever (309), the outer side of the lever (309) is provided with a U-shaped limiting seat (308), the top of the driving sleeve (306) is fixedly connected with a support plate (312), the top of the support plate (312) is placed with a convex block (304) with the upper end clamped in the positioning slot (303). The left side of the convex block (304) and the right side of the fireproof door body (1) are fixedly connected with a connecting hinge (102).

2. A fire door according to claim 1, wherein: The front of the fireproof door body (1) is provided with a handle (101).

3. The fire door of claim 1, wherein: The number of the recess (3) is three, and the distance between the adjacent two recesses (3) is equal.

4. The fire door of claim 1, wherein: The lower end of the right side of the inner wall of the recess (3) is provided with a first guide sliding groove (301), and the middle end of the right side of the support plate (312) is fixedly connected with a first guide sliding block (305) sliding in the first guide sliding groove (301).

5. The fire door of claim 1, wherein: The guide rail slot (313) is a half circle shaped rail slot spirally upward.

6. The fire door of claim 1, wherein: The lower end of the rear side of the inner wall of the recess (3) is provided with a second guide sliding groove (302), and the rear side of the U-shaped limiting seat (308) is fixedly connected with a second guide sliding block (307) sliding in the second guide sliding groove (302).

7. The fire door of claim 1, wherein: The lower end of the left side of the support plate (312) is movably connected with a shielding plate (4) matched with the lower end of the recess (3) through a hinge.