Fireproof door with mechanical seal structure

Abstract

The utility model relates to a glass fireproof door with mechanical seal structure, including door frame and door leaf, the outer periphery of door leaf and / or the inboard of door frame is set up a circle sealing element installation groove, the mechanical seal element that pops out after fire breaks out is installed in sealing element installation groove, the outer periphery of door leaf and / or the inboard of door frame is installed a layer of fusible alloy piece, and the mechanical seal element is blocked in sealing element installation groove by fusible alloy piece. Advantageous effects are: glass fireproof door utilizes fusible alloy piece to block the mechanical seal element in sealing element installation groove in the daily use process, prevents the expansion graphite sealing strip from falling off, prevents the expansion graphite sealing strip from aging due to external environmental factors, high temperature makes fusible alloy piece melt after fire, under the resilience of compression spring, pushes out the expansion graphite sealing strip sealing strip containing groove, and the gap between door leaf and door frame is blocked by the high temperature expansion of expansion graphite sealing strip, prevents the smoke along the gap between door leaf and door frame of fire and spreads.

Description

Technical Field

[0001] This utility model relates to the field of glass fire doors, and in particular to a glass fire door with a mechanical seal structure. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire-resistant compartments, evacuation stairwells, vertical shafts, and other similar locations. As a core flame-retardant component of a building's fire protection system, the structural design of fire doors directly affects escape time and fire control effectiveness during a fire.

[0003] Fire doors typically have a gap between the door leaf and the frame to ensure smooth opening and closing. Traditional fire doors have a fireproof sealing strip pasted around the frame, but this strip is often exposed and prone to falling off and aging. This can cause the fireproof sealing strip to fail during a fire, allowing smoke to spread along the gap between the door leaf and the frame. This can cause people trying to escape to suffocate from the smoke, thus hindering their escape. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems existing in the prior art and to provide a glass fire door with a mechanical seal structure.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A fireproof glass door with a mechanical seal structure includes a door frame and a door leaf. One side of the door leaf is hinged to one side of the door frame via a hinge, and the other side of the door leaf is locked to the other side of the door frame via a door lock. A door closer is installed on the top of the back of the door leaf, and the end of the swing arm of the door closer is fastened to the top of the door frame with a fastener. A sealing element mounting groove is formed on the outer periphery of the door leaf and / or the inner side of the door frame. A mechanical seal that pops out after a fire occurs is installed in the sealing element mounting groove. A fusible alloy sheet is installed on the outer periphery of the door leaf and / or the inner side of the door frame. The fusible alloy sheet seals the mechanical seal in the sealing element mounting groove.

[0007] The sealing element mounting groove includes a long strip-shaped sealing strip receiving groove and a spring receiving groove with a circular cross-section, wherein the spring receiving groove is connected to the sealing strip receiving groove.

[0008] The mechanical seal includes an expanded graphite sealing strip and a plurality of compression springs. The expanded graphite sealing strip is filled in a sealing strip receiving groove. Each spring receiving groove holds a compression spring in a compressed state. One end of the compression spring abuts against the back of the expanded graphite sealing strip, and the front of the expanded graphite sealing strip abuts against the back of the fusible alloy sheet.

[0009] The expanded graphite sealing strip has a U-shaped stainless steel strip pasted on its back.

[0010] The width of the stainless steel strip is smaller than the width of the sealing strip receiving groove, and the width of the expanded graphite sealing strip is smaller than the width of the sealing strip receiving groove.

[0011] The door leaf includes a rectangular door leaf frame and a fireproof glass assembly installed in the door leaf frame. The fireproof glass assembly includes three layers of flat glass and two layers of potassium hydroxide glass, with a layer of potassium hydroxide glass sandwiched between two adjacent layers of flat glass.

[0012] The modulus of the potassium silicate is greater than 5.

[0013] The thickness of the flat glass is 5mm.

[0014] The beneficial effects of this utility model are: during daily use, the glass fire door uses a fusible alloy sheet to seal the mechanical seal in the seal installation groove, and avoids the expanded graphite sealing strip being exposed to the external environment, preventing the expanded graphite sealing strip from falling off and preventing the expanded graphite sealing strip from aging due to external environmental factors; after a fire occurs, the high temperature melts the fusible alloy sheet, and under the restoring force of the compression spring, the expanded graphite sealing strip is pushed out of the sealing strip receiving groove. The expanded graphite sealing strip expands at high temperature and seals the gap between the door leaf and the door frame, preventing the smoke generated by the fire from spreading along the gap between the door leaf and the door frame. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a structural schematic diagram of the glass fire door in Embodiment 1 of this utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure in the AA direction;

[0018] Figure 3 yes Figure 2 Enlarged structural diagram of section B;

[0019] Figure 4 yes Figure 2 A magnified structural diagram of section C;

[0020] Figure 5 yes Figure 2 A magnified structural diagram of section D;

[0021] Figure 6 This is a partial structural diagram of the door frame and door leaf in Embodiment 1 of this utility model;

[0022] Figure 7 yes Figure 6 Enlarged structural diagram of section E in the middle;

[0023] Explanation of the numbers in the diagram: Door frame 1, Limiting flange 11,

[0024] Door leaf 2, door leaf frame 21, fireproof glass assembly 22, flat glass 221, potassium hydroxide glass 222, fireproof sealing strip 23

[0025] 3. Hinges; 4. Door locks; 5. Door closers

[0026] 6. Sealing element mounting groove; 61. Sealing strip receiving groove; 62. Spring receiving groove.

[0027] Mechanical seal 7, expanded graphite sealing strip 71, compression spring 72

[0028] 8. Fusible alloy sheet; 9. Stainless steel strip. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 7 The first embodiment shown includes a glass fire door with a mechanical seal structure, comprising a door frame 1 and a door leaf 2. One side of the door leaf 2 is hinged to one side of the door frame 1 via a hinge 3, and the other side of the door leaf 2 is locked to the other side of the door frame 1 via a door lock 4. A door closer 5 is installed on the top of the back of the door leaf 2. The end of the swing arm of the door closer 5 is fastened to the top of the door frame 1. A limiting flange 11 for blocking the door leaf 2 is provided on the inner side of the door frame 1 near the front of the door frame 1.

[0031] The door leaf 2 includes a rectangular door leaf frame 21 and a fireproof glass assembly 22 installed in the door leaf frame 21, with a fireproof sealing strip 23 sandwiched between the fireproof glass assembly 22 and the door leaf frame 21.

[0032] The fireproof glass assembly 22 includes three layers of flat glass 221 and two layers of potassium hydroxide glass 222. A layer of potassium hydroxide glass 222 is sandwiched between two adjacent layers of flat glass 221. The modulus of potassium hydroxide glass 222 is greater than 5, and the thickness of flat glass 221 is 5mm.

[0033] A sealing groove 6 is opened on the outer periphery of the door leaf 2 and the inner side of the door frame 1. A mechanical seal 7 that will pop out after a fire is installed in the sealing groove 6. A layer of fusible alloy sheet 8 is installed on the outer periphery of the door leaf 2 and the inner side of the door frame 1. The melting temperature of the fusible alloy sheet 8 is 120℃±5℃. The fusible alloy sheet 8 is nailed to the outer periphery of the door leaf 2 and the inner side of the door frame 1 with air vent nails. The fusible alloy sheet 8 seals the mechanical seal 7 in the sealing groove 6.

[0034] The sealing installation groove 6 includes a long strip-shaped sealing strip receiving groove 61 and a spring receiving groove 62 with a circular cross-section. The spring receiving groove 62 is connected to the sealing strip receiving groove 61.

[0035] The mechanical seal 7 includes an expanded graphite sealing strip 71 and a plurality of compression springs 72. The expanded graphite sealing strip 71 is filled in the sealing strip receiving groove 61. Each spring receiving groove 62 holds a compression spring 72 in a compressed state, and one end of the compression spring 72 abuts against the back of the expanded graphite sealing strip 71, while the front of the expanded graphite sealing strip 71 abuts against the back of the fusible alloy sheet 8.

[0036] A U-shaped stainless steel strip 9 is attached to the back of the expanded graphite sealing strip 71. Since the number of compression springs 72 is limited and the expanded graphite sealing strip 71 itself is a flexible material, the expanded graphite sealing strip 71 between adjacent compression springs 72 is prone to bending towards the compression spring. Therefore, the stainless steel strip 9 is used to support the expanded graphite sealing strip 71, increasing its rigidity and preventing bending between adjacent compression springs.

[0037] The width of the stainless steel strip 9 is smaller than the width of the sealing strip receiving groove 61, and the width of the expanded graphite sealing strip 71 is smaller than the width of the sealing strip receiving groove 61. This reduces the contact between the groove wall of the sealing strip receiving groove 61 and the stainless steel strip 9 and the expanded graphite sealing strip 71, thereby reducing the frictional resistance of the groove wall of the sealing strip receiving groove 61 on the stainless steel strip 9 and the expanded graphite sealing strip 71.

[0038] The locations where hinges and door locks are installed are provided with the expanded graphite sealing strip 71 and the fusible alloy sheet 8 by means of opening clearance holes or clearance grooves.

[0039] The outer periphery of door leaf 2 refers to the top, bottom, left and right sides of the outer wall of the door leaf frame, that is, the four sides of the outer wall of the door leaf frame; the inner side of door frame 1 refers to the bottom, top, left and right sides of the inner wall of the door frame, that is, the four sides of the inner wall of the door frame.

[0040] After the fire, the high temperature melts the fusible alloy sheet. Under the restoring force of the compression spring, the expanded graphite sealing strip is pushed out of the sealing strip receiving groove. The expanded graphite sealing strip expands at high temperature and seals the gap between the door leaf and the door frame, preventing the smoke generated by the fire from spreading along the gap between the door leaf and the door frame.

[0041] In daily use, glass fire doors utilize fusible alloy sheets to seal the mechanical seals in the seal installation grooves, preventing the expanded graphite sealing strips from being exposed to the external environment, thus preventing the expanded graphite sealing strips from falling off and aging due to external environmental factors.

[0042] Example 2 differs from Example 1 in that: a sealing element installation groove 6 is formed around the outer periphery of the door leaf 2, and a mechanical seal 7 that pops out after a fire is installed in the sealing element installation groove 6. A layer of fusible alloy sheet 8 is installed around the outer periphery of the door leaf 2. The melting temperature of the fusible alloy sheet 8 is 120℃±5℃. The fusible alloy sheet 8 is nailed to the outer periphery of the door leaf 2 with air vent nails, and the fusible alloy sheet 8 seals the mechanical seal 7 in the sealing element installation groove 6.

[0043] Example 3 differs from Example 1 in that: a sealing element installation groove 6 is formed on the inner side of the door frame 1, and a mechanical seal 7 that pops out after a fire is installed in the sealing element installation groove 6. A layer of fusible alloy sheet 8 is installed on the inner side of the door frame 1. The melting temperature of the fusible alloy sheet 8 is 120℃±5℃. The fusible alloy sheet 8 is nailed to the inner side of the door frame 1 with air vent nails. The fusible alloy sheet 8 seals the mechanical seal 7 in the sealing element installation groove 6.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fireproof glass door with a mechanical seal structure, comprising a door frame and a door leaf, wherein one side of the door leaf is hinged to one side of the door frame via a hinge, and the other side of the door leaf is locked to the other side of the door frame via a door lock, and a door closer is installed on the top of the back of the door leaf, wherein the end of the swing arm of the door closer is fastened to the top of the door frame with a fastener, characterized in that: A sealing element mounting groove is formed on the outer periphery of the door leaf and / or the inner side of the door frame. A mechanical seal that will pop out after a fire occurs is installed in the sealing element mounting groove. A fusible alloy sheet is installed on the outer periphery of the door leaf and / or the inner side of the door frame. The fusible alloy sheet seals the mechanical seal in the sealing element mounting groove.

2. The glass fire door according to claim 1, characterized in that: The sealing element mounting groove includes a long strip-shaped sealing strip receiving groove and a spring receiving groove with a circular cross-section, and the spring receiving groove is connected to the sealing strip receiving groove.

3. The glass fire door according to claim 1, characterized in that: The mechanical seal includes an expanded graphite sealing strip and a plurality of compression springs. The expanded graphite sealing strip is filled in a sealing strip receiving groove. Each spring receiving groove holds a compression spring in a compressed state. One end of the compression spring abuts against the back of the expanded graphite sealing strip, and the front of the expanded graphite sealing strip abuts against the back of the fusible alloy sheet.

4. The glass fire door according to claim 3, characterized in that: A U-shaped stainless steel strip is attached to the back of the expanded graphite sealing strip.

5. The glass fire door according to claim 4, characterized in that: The width of the stainless steel strip is smaller than the width of the sealing strip receiving groove, and the width of the expanded graphite sealing strip is smaller than the width of the sealing strip receiving groove.

6. The glass fire door according to claim 1, characterized in that: The door panel includes a rectangular door panel frame and a fireproof glass assembly installed in the door panel frame. The fireproof glass assembly includes three layers of flat glass and two layers of potassium hydroxide glass, with a layer of potassium hydroxide glass sandwiched between two adjacent layers of flat glass.

7. The glass fire door according to claim 1, characterized in that: The modulus of the potassium silicate is greater than 5.

8. The glass fire door according to claim 1, characterized in that: The thickness of the flat glass is 5mm.

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