High-airtightness fireproof glass door system

By incorporating fire-resistant sealing strips, steps, grooves, anti-sinking prestressing mechanisms, and automatic dustproof mechanisms into fire-resistant glass doors, the problems of poor sealing and sinking in fire-resistant glass doors have been solved, achieving high airtightness and safety.

CN223676118UActive Publication Date: 2025-12-16HENGBAO FIRE RESISTANT GLASS FACTORY
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Patent Information

Application Number
CN202423100261.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-16
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing fireproof glass doors suffer from poor sealing and door leaf sagging during use, leading to sealing failure and safety hazards.

Method used

The design incorporates fire-resistant sealing strips, steps, grooves, anti-sinking prestressing mechanisms, and automatic dustproof mechanisms to ensure a good seal when the door is closed and prevent it from sinking. Stable closing is achieved through hinges and door closers.

Benefits of technology

It achieves a high airtightness sealing effect, prevents the door leaf from sinking, avoids scratches and jamming, and improves the safety and service life of fireproof glass doors.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223676118U_ABST
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Abstract

The utility model relates to a high-air-tightness fireproof glass door system which comprises a door frame, a first door leaf and a second door leaf, first fireproof sealing rubber strips are installed on the two sides, close to the door frame, of the first door leaf, and first fireproof sealing rubber strips are installed on the two sides, close to the door frame, of the second door leaf and the two sides, close to the first door leaf, of the second door leaf. A groove is formed in the side, close to the second door leaf, of the first door leaf. Steps are arranged around the front face of the door frame. The first door leaf and the second door leaf are each internally provided with a set of anti-sinking prestress mechanism. Dustproof mechanism mounting grooves are formed in the bottom of the first door leaf and the bottom of the second door leaf correspondingly, and automatic dustproof mechanisms are mounted in the dustproof mechanism mounting grooves. And a hidden syn-position device is mounted at the top of the door frame. The fireproof door has the beneficial effects that the step, the groove and the first fireproof sealing strip are matched, and the automatic dustproof mechanism in sliding contact with the ground is mounted at the bottom of the door leaf, so that a good sealing effect is achieved when the door leaf is closed; the side, away from the door frame side, of the door leaf is prevented from sinking.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof glass doors, and in particular to a high airtight fireproof glass door system. Background Technology

[0002] Because the current domestic fire-resistant glass doors meet the higher testing requirements of the new national standard "GB 12955-2024 Fire Doors", and existing fire-resistant glass doors have the following problems:

[0003] Existing fireproof glass doors use fire-resistant expansion sealing strips, which cannot provide a good seal during normal use.

[0004] The fire door was designed with excessive width to accommodate escape flow. However, due to its structural design, only the side of the door leaf closest to the frame serves as the point of force application. This causes the side of the door leaf furthest from the frame to often sink due to gravity, sometimes even touching the ground, resulting in the door leaf getting stuck and unable to close automatically. Analysis of the door leaf structure reveals that over time, the frame gradually changes from rectangular to a slightly rhomboid shape due to metal fatigue under normal use and stress, leading to scraping. Furthermore, in recent years, there have been numerous incidents of large glass doors suddenly detaching during use and injuring passersby. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned problems in the existing technology and provide a high airtight fireproof glass door system.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A high airtight fireproof glass door system includes a door frame, a first door leaf, and a second door leaf. The first and second door leaves are hinged to the door frame. A set of door closers is installed between the top of the first door leaf and the top of the second door leaf. A first fireproof sealing strip is installed on both sides of the first door leaf near the door frame. A first fireproof sealing strip is also installed on both sides of the second door leaf near the door frame and both sides near the first door leaf. A groove for engaging with the first fireproof sealing strip is provided on the side of the first door leaf near the second door leaf. Steps for tight contact with the first fireproof sealing strip are provided around the front perimeter of the door frame. A set of anti-sinking prestressing mechanisms is installed in both the first and second door leaves to prevent the adjacent sides from sinking. Recessed dustproof mechanism mounting grooves are provided at the bottom of the first and second door leaves, and automatic dustproof mechanisms that slide in contact with the ground are installed in these grooves. A concealed locator that closes the first door leaf first is installed at the top of the door frame.

[0008] The top and the side close to the side edge of the door frame of the first door leaf are a first door leaf profile, the bottom of the first door leaf is a second door leaf profile, the side close to the second door leaf of the first door leaf is a third door leaf profile, and the middle part of the first door leaf is a fireproof glass assembly.

[0009] The top and the side close to the side edge of the door frame of the second door leaf are a first door leaf profile, the bottom of the second door leaf is a second door leaf profile, the side close to the first door leaf of the second door leaf is a fourth door leaf profile, and the middle part of the second door leaf is a fireproof glass assembly.

[0010] The fireproof glass assembly comprises three layers of sandwiched fireproof glass, and the side of the three layers of sandwiched fireproof glass facing the indoor side is pasted with colored glaze glass, artistic glass or electric film glass.

[0011] The fireproof glass assembly comprises three layers of sandwiched fireproof glass, and the side of the three layers of sandwiched fireproof glass facing the indoor side is pasted with colored glaze glass, artistic glass or electric film glass.

[0012] The automatic dustproof mechanism comprises an installation strip and a second fireproof sealing rubber strip.

[0013] The first fireproof sealing rubber strip is in a U-shaped cross section.

[0014] Preferably, a set of anti-falling ropes is installed between the side upper part of the first door leaf and the side upper part of the second door leaf.

[0015] The utility model discloses an automatic dustproof mechanism is installed in the bottom of the door leaf and is in sliding contact with the ground, and the automatic dustproof mechanism is matched with the step and the groove and the first fireproof sealing strip, so that the door leaf plays a good sealing role when closing. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and serve to explain the utility model without imposing any undue limitation to the utility model. In the drawings:

[0017] Figure 1 It is the structure schematic diagram of fireproof glass door system in the utility model;

[0018] Figure 2 It is the partial structure schematic diagram of the connection of the door frame and the second door leaf side in the utility model;

[0019] Figure 3 It is the partial structure schematic diagram of the connection of the first door leaf and the second door leaf in the utility model;

[0020] Figure 4 It is the partial structure schematic diagram of the connection of the door frame and the second door leaf top in the utility model;

[0021] Figure 5 It is the partial structure schematic diagram of the second door leaf bottom in the utility model;

[0022] Explanation of reference numerals in the drawings: door frame 1, step 101, first door leaf 2, groove 201, second door leaf 3, hinge 4, door closer 5, first fireproof sealing rubber strip 6, anti-sinking prestressed mechanism 7, steel plate 701, steel wire 702, lifting eye bolt 703, dustproof mechanism mounting groove 8, automatic dustproof mechanism 9, mounting strip 901, second fireproof sealing rubber strip 902, hidden type orderer 10, first door leaf section bar 11, second door leaf section bar 12, third door leaf section bar 13, fireproof glass assembly 14, three-layer laminated fireproof glass 141, colored glaze glass 142, glass fixing buckle strip 15, fourth door leaf section bar 16, anti-falling rope 17. DETAILED DESCRIPTION

[0023] The utility model will be described in detail below in combination with the embodiments and with reference to the drawings.

[0024] As Figures 1 to 5As shown, a high air-tight fireproof glass door system includes a door frame 1, a first door leaf 2, a second door leaf 3, the first door leaf 2 and the second door leaf 3 are respectively hinged to the door frame 1 through hinges 4, a set of door closers 5 are respectively installed between the door frame 1 and the top of the first door leaf 2 and the top of the second door leaf 3, and a hidden sequence closer 10 for closing the first door leaf 2 first is installed on the top of the door frame 1.

[0025] In order to prevent the first door leaf 2 and the second door leaf 3 from falling during use, a set of anti-falling ropes 17 are respectively installed between the upper side of the first door leaf 2 and the upper side of the second door leaf 3 and the door frame 1.

[0026] The top of the first door leaf 2 and the side close to the side edge of the door frame 1 are a first door leaf profile 11, the bottom of the first door leaf 2 is a second door leaf profile 12, the side close to the second door leaf 3 of the first door leaf 2 is a third door leaf profile 13, and the middle of the first door leaf 2 is a fireproof glass assembly 14, glass fixing buckles 15 are installed on the side close to the fireproof glass assembly 14 of the first door leaf profile 11, the second door leaf profile 12 and the third door leaf profile 13, and the fireproof glass assembly 14 is clamped between the glass fixing buckles 15 and the first door leaf profile 11, the second door leaf profile 12 and the third door leaf profile 13.

[0027] The top of the second door leaf 3 and the side close to the side edge of the door frame 1 are a first door leaf profile 11, the bottom of the second door leaf 3 is a second door leaf profile 12, the side close to the first door leaf of the second door leaf 3 is a fourth door leaf profile 16, and the middle of the second door leaf 3 is a fireproof glass assembly 14, glass fixing buckles 15 are installed on the side close to the fireproof glass assembly 14 of the first door leaf profile 11, the second door leaf profile 12 and the fourth door leaf profile 16, and the fireproof glass assembly 14 is clamped between the glass fixing buckles 15 and the first door leaf profile 11, the second door leaf profile 12 and the fourth door leaf profile 16.

[0028] The first door leaf 2 is installed with first fireproof sealing rubber strips 6 close to both sides of the door frame 1, the second door leaf 3 is installed with first fireproof sealing rubber strips 6 close to both sides of the door frame 1 and close to both sides of the first door leaf 2, and the cross section of the first fireproof sealing rubber strip 6 is U-shaped.

[0029] The side close to the second door leaf 3 of the first door leaf 2 is provided with a groove 201 for engaging with the first fireproof sealing rubber strip 6, so that when the first door leaf and the second door leaf are in the closed state, the first fireproof sealing rubber strip 6 engages with the groove 201 to form a sealing structure.

[0030] The front of the door frame 1 is provided with steps 101 for closely fitting with the first fireproof sealing rubber strip 6, so that when the first door leaf and the second door leaf are in the closed state, the first fireproof sealing rubber strip 6 closely fits with the steps 101 to form a sealing structure.

[0031] The bottom of the first door leaf 2 and the bottom of the second door leaf 3 are respectively provided with an inner concave dustproof mechanism mounting groove 8, and an automatic dustproof mechanism 9 in sliding contact with the ground is mounted in the dustproof mechanism mounting groove 8, the automatic dustproof mechanism 9 comprises an elongated mounting strip 901 and a second fireproof sealing rubber strip 902, the dustproof mechanism mounting groove 8 is located at the bottom of the second door leaf profile 12, the mounting strip 901 is mounted in the dustproof mechanism mounting groove 8, and the second fireproof sealing rubber strip 902 is mounted at the bottom of the mounting strip 901, so that the second fireproof sealing rubber strip 902 is in sliding contact with the ground to form a sealing structure when the first door leaf and the second door leaf are in a closed state.

[0032] The above points are combined to achieve good sealing effect when the first door leaf and the second door leaf are closed.

[0033] A set of anti-sinking prestressed mechanisms 7 for preventing the side close to each other from sinking are respectively mounted in the first door leaf 2 and the second door leaf 3, the anti-sinking prestressed mechanism 7 comprises a steel plate 701 and a steel wire 702, the steel plate 701 is mounted in the first door leaf profile 11 at the top of the first door leaf 2 or the top of the second door leaf 3, a lifting ring bolt 703 is screwed at one end of the steel plate 701 close to the side edge of the door frame 1, one end of the steel wire 702 is connected to the lifting ring bolt 703, and the other end of the steel wire 702 is fixed in the first door leaf profile 11 close to the side edge of the first door leaf 2 or the side edge of the second door leaf 3 by a screw.

[0034] The angle of the steel wire is adjusted by rotating the lifting ring bolt 703, and then the tension of the steel wire on the steel plate 701 is adjusted, the anti-sinking prestressed mechanism is used to exert an upward pulling force on the side of the door leaf away from the side edge of the door frame, so that the side of the door leaf away from the side edge of the door frame is prevented from sinking, and the phenomenon of the door leaf bottom being stuck due to scraping the ground is avoided.

[0035] The fireproof glass assembly 14 comprises three layers of sandwiched fireproof glass 141, and colored enamel glass 142 is attached to one side of the three layers of sandwiched fireproof glass 141 facing the indoor side.

[0036] 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 examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A high air-tight fireproof glass door system, comprising a door frame, a first door leaf, a second door leaf, the first door leaf and the second door leaf are respectively hinged with the door frame by hinges, a set of door closers are respectively installed between the door frame and the top of the first door leaf and the top of the second door leaf, characterized in that: The first door leaf is provided with a first fireproof sealing rubber strip on both sides close to the door frame, the second door leaf is provided with a first fireproof sealing rubber strip on both sides close to the door frame and the first door leaf, the first door leaf is provided with a groove close to the second door leaf, and the door frame is provided with a step close to the first fireproof sealing rubber strip; a set of anti-sinking prestress mechanism is arranged in the first door leaf and the second door leaf respectively to prevent the sinking of one side close to each other; a concave dustproof mechanism mounting groove is arranged in the bottom of the first door leaf and the second door leaf, and an automatic dustproof mechanism in sliding contact with the ground is arranged in the dustproof mechanism mounting groove; and a hidden order device is arranged on the top of the door frame to make the first door leaf close first.

2. The fire protective glazed door system of claim 1, wherein: The top and the side close to the door frame of the first door leaf are a first door leaf profile, the bottom of the first door leaf is a second door leaf profile, the side close to the second door leaf of the first door leaf is a third door leaf profile, and the middle of the first door leaf is a fireproof glass assembly; the first door leaf profile, the second door leaf profile and the third door leaf profile are provided with a glass fixing buckle strip close to the fireproof glass assembly; and the fireproof glass assembly is clamped between the glass fixing buckle strip and the first door leaf profile, the second door leaf profile and the third door leaf profile.

3. The fire protective glazed door system of claim 1, wherein: The top and the side close to the door frame of the second door leaf are a first door leaf profile, the bottom of the second door leaf is a second door leaf profile, the side close to the first door leaf of the second door leaf is a fourth door leaf profile, and the middle of the second door leaf is a fireproof glass assembly; the first door leaf profile, the second door leaf profile and the fourth door leaf profile are provided with a glass fixing buckle strip close to the fireproof glass assembly; and the fireproof glass assembly is clamped between the glass fixing buckle strip and the first door leaf profile, the second door leaf profile and the fourth door leaf profile.

4. Fire door system according to claim 2 or 3, characterized in that: The fireproof glass assembly comprises three layers of sandwiched fireproof glass, and the side of the three layers of sandwiched fireproof glass facing the indoor side is pasted with colored glaze glass, artistic glass or electric film glass.

5. A fire door system according to claim 2 or 3, characterised in that: The anti-sinking prestress mechanism comprises a steel plate and a steel wire; the steel plate is arranged in the first door leaf profile at the top of the first door leaf or the second door leaf; a lifting ring bolt is screwed on one end of the steel plate close to the side of the door frame; one end of the steel wire is tied on the lifting ring bolt; and the other end of the steel wire is fixed in the first door leaf profile close to the side of the door frame or the second door leaf profile close to the side of the door frame by a screw.

6. The fire door system of claim 2 or 3, wherein: The automatic dustproof mechanism comprises an elongated mounting strip and a second fireproof sealing rubber strip; the dustproof mechanism mounting groove is arranged in the bottom of the second door leaf profile; and the mounting strip is arranged in the dustproof mechanism mounting groove; and the second fireproof sealing rubber strip is arranged on the bottom of the mounting strip.

7. The fire protective glazed door system of claim 1, wherein: The first fireproof sealing rubber strip is in U-shaped cross section.

8. The fire protective glazed door system of claim 1, wherein: A set of anti-falling ropes is arranged between the side upper part of the first door leaf and the second door leaf and the door frame.