Hollow energy-saving fireproof door

Abstract

The utility model relates to the technical field of fireproof doors, in particular to a hollow type energy-saving fireproof door which comprises a door frame, a door cover and a door frame. The fireproof door leaf is mounted on the door frame through hinges; the two groups of sealing assemblies are symmetrically distributed in the door frame; each set of sealing assembly comprises two sealing plates used for sealing the glass window, and one end of each sealing plate extends to form a vertical plate. The spring provides reset force for the closing plate; and the fusing type safety rope is used for blocking the closing plate. The glass window has the advantages that the closing assembly is arranged, when a fire occurs, the fusing type safety rope can be automatically fused at high temperature, the closing plate is released, the glass window is closed under the action of the spring, and at the moment, even if the temperature exceeds the set temperature of the glass window, the glass window is broken, and the glass window is not broken under closing of the closing plate; the glass fragments exist in the installation position, the splashing situation is avoided, and under the sealing effect of the sealing plate, smoke can be prevented from entering the glass fragments.

Description

Technical Field

[0001] The present application relates to the technical field of fire doors, and in particular to a hollow energy-saving fire door. Background Art

[0002] Fire doors are key components in buildings to prevent the spread of fire, especially crucial in high-rise buildings, public facilities, and industrial sites. For example, a hollow energy-saving metal fire door proposed in the patent with the publication number CN218816043U can be firmly locked when closed through the combined action of a frame, guide rails, tightening sliders, springs, and locking rods, making it not easy to loosen, thereby improving the functionality and anti-theft performance of this fire door. When connecting one side of the main body to the door frame, the connection part is connected to the guide rail, and the locking rod is turned clockwise, which drives the tightening slider to displace to the right and generate pressure, compressing the spring at the upper end of the guide rail. In this way, the connection part can be firmly locked between the frame and the tightening slider through the action of pressure, which is very practical and efficient.

[0003] However, in actual use of this fire door, it is inconvenient to block the glass window during a fire, resulting in the glass window on the fire door being prone to cracking during the change of fire pressure. The generated fragments may cause injuries to personnel, and may also cause smoke to enter from the broken position.

[0004] In response to this, the present application proposes a hollow energy-saving fire door to solve this problem. Summary of the Invention

[0005] The purpose of the present application aims to solve at least one of the above technical defects.

[0006] For this reason, an object of the present application is to propose a hollow energy-saving fire door to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.

[0007] To achieve the above object, an embodiment of one aspect of the present application provides a hollow energy-saving fire door, including: a door frame on which a glass window is installed; a fire door leaf installed on the door frame through hinges; two sets of closing components symmetrically distributed within the door frame; a single set of closing components including: two closing plates for closing the glass window, with a vertical plate extending from one end of the closing plate; a spring providing a restoring force for the closing plate; a fuse-type safety rope for blocking the closing plate; and a damper for cooperating with the vertical plate to slow down the movement speed of the closing plate.

[0008] Preferably, two connection grooves are provided on the door frame, symmetrically distributed at both ends of the glass window, for accommodating the closing components.

[0009] Preferably, a through hole is provided on the connection groove for installing the fuse-type safety rope.

[0010] Preferably, one end of the spring is installed in the connection groove, and the other end is connected to the closing plate.

[0011] Preferably, the closing plate is slidably arranged in the connection groove. An installation groove is formed in the closing plate, and a sealing gasket is installed in the installation groove for sealing the gap between the two closing plates. A buckling groove is formed in the closing plate, which is the operation point when manually driving the closing plate.

[0012] Preferably, the melting point of the fuse-type safety rope is lower than that of the glass window, and the resistance provided by the fuse-type safety rope is greater than the elastic force provided by the spring.

[0013] Preferably, a positioning block is installed on the damper. The positioning block is installed in the connection groove, and the damper is a double-headed damper.

[0014] Compared with the prior art, the advantages and beneficial effects of the present application are as follows:

[0015] In the present application, a closing assembly is provided. When a fire breaks out, the fuse-type safety rope will automatically melt when encountering high temperature, releasing the closing plate, which closes the glass window under the action of the spring. At this time, even if the temperature exceeds the set temperature of the glass window and causes the glass window to break, under the closure of the closing plate, the glass fragments still remain in the installation position and will not splash. Under the closure of the closing plate, the intrusion of smoke can also be avoided.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram of the open state of the closing plate according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the closed state of the closing plate according to an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of a partial cross-section according to an embodiment of the present application;

[0021] Figure 4 is a sectional view taken from above according to an embodiment of the present application;

[0022] Figure 5Schematic diagram of a single - group closing component according to an embodiment of the present application;

[0023] Figure 6 Schematic diagram of spring connection according to an embodiment of the present application;

[0024] Figure 7 Schematic diagram of the connection of the positioning block according to an embodiment of the present application.

[0025] In the figure: 1. Door frame, 101. Glass window, 2. Fire - resistant door leaf, 3. Closing component, 301. Closing plate, 302. Vertical plate, 303. Spring, 304. Fuse - type safety rope, 305. Damper, 306. Sealing gasket, 307. Positioning block. Detailed implementation mode

[0026] As Figures 1 to 7 shown, a hollow - type energy - saving fire - resistant door includes:

[0027] A door frame 1, on which a glass window 101 is installed;

[0028] A fire - resistant door leaf 2, which is installed on the door frame 1 through hinges;

[0029] Two groups of closing components 3, which are symmetrically distributed inside the door frame 1. When viewed from above, the two groups of closing components 3 are symmetrically distributed along the long - axis side of the door frame 1;

[0030] A single - group closing component 3 includes:

[0031] Two closing plates 301, which are used to close the glass window 101. One end of the closing plate 301 extends with a vertical plate 302. The two closing plates 301 are symmetrically distributed, and when viewed from above, the two closing plates 301 are symmetrically distributed along the short - axis side of the door frame 1. The closing plate 301 is made of fire - resistant material;

[0032] A spring 303, which provides a restoring force for the closing plate 301. There are several springs 303, which are symmetrically arranged at one end of the closing plate 301;

[0033] A fuse - type safety rope 304, which is used to block the closing plate 301. A safety rope made of special material is used. When the environmental temperature reaches a preset value, the material melts, causing the rope to break;

[0034] Specifically, when the fuse - type safety rope 304 is not melted, it blocks the closing plate 301, making the closing plate 301 immovable. When the fuse - type safety rope 304 melts, the block on the closing plate 301 is released;

[0035] A damper 305, which is used to cooperate with the vertical plate 302 to slow down the movement speed of the closing plate 301. When the vertical plate 302 contacts the working head of the damper 305, the movement speed of the closing plate 301 is slowed down under the influence of the damper 305.

[0036] Further, two connecting grooves are formed on the door frame 1, symmetrically distributed at both ends of the glass window 101, for accommodating the closing assembly 3.

[0037] Further, a through hole is formed in the connecting groove for installing the fusing safety rope 304.

[0038] Further, one end of the spring 303 is installed in the connecting groove, and the other end is connected to the closing plate 301.

[0039] Further, the closing plate 301 is slidably arranged in the connecting groove. An installation groove is formed on the closing plate 301, and a sealing gasket 306 is installed in the installation groove. The sealing gasket 306 is used for sealing the gap between the two closing plates 301. The arrangement of the sealing gasket 306 can further provide a buffering force when the two oppositely arranged closing plates 301 come into contact;

[0040] The sealing gasket 306 is made of ceramic fiber mixed with graphite, having extremely high temperature resistance, and can withstand a high temperature of over 1000 °C. The high temperature resistance and fire resistance of the sealing gasket are improved by adding fillers such as graphite.

[0041] A buckle groove is formed on the closing plate 301, which is the operation point when manually driving the closing plate 301.

[0042] Further, the melting point of the fusing safety rope 304 is lower than that of the glass window 101, and the resistance provided by the fusing safety rope 304 is greater than the elastic force provided by the spring 303.

[0043] Further, a positioning block 306 is installed on the damper 305. The positioning block 306 is installed in the connecting groove. The positioning block 306 supports and positions the installation of the damper. The damper 305 is a double-headed damper 305, that is, working heads are provided at both ends of the damper 305 to match the two closing plates 301 in a single group. The arrangement of the damper 305 avoids the situation that the two oppositely arranged closing plates 301 are not tightly closed due to excessive force when they come into contact with each other. The damping force provided by the damper 305 is less than the elastic force provided by the spring 303.

[0044] A hollow energy-saving fire door has the following working principle:

[0045] When a fire breaks out and the temperature exceeds the set temperature of the fusible safety rope 304, the fusible safety rope 304 is fused, and the closing plate 301 is no longer blocked. Under the action of the spring 303, the closing plate 301 is driven to move under the limit of the connecting groove. The movement of the closing plate 301 synchronously drives the vertical plate 302 thereon. When the vertical plate 302 moves to contact the working head of the damper 305, the movement of the closing plate 301 is restricted by the damping force, and the movement speed of the closing plate 301 slows down until the gaskets 306 on the two closing plates 301 contact each other. Under the action of the spring 303, the two gaskets 306 are squeezed against each other to block the gap between the two closing plates 301, and the two groups of closing plates 301 close the glass window 101 on the door frame.

Claims

1. A hollow energy-saving fire door, characterized in that: Comprising: A door frame, on which a glass window is installed; A fireproof door leaf, installed on the door frame through hinges; Two groups of closing components, symmetrically distributed within the door frame; A single group of closing components includes: Two closing plates for closing the glass window, with a vertical plate extending from one end of the closing plate; A spring, providing a restoring force for the closing plate; A fusible safety rope for blocking the closing plate; A damper for cooperating with the vertical plate to slow down the movement speed of the closing plate.

2. The hollow energy-saving fire door according to claim 1, wherein: Two connecting grooves are formed on the door frame, symmetrically distributed at both ends of the glass window, for accommodating the closing components.

3. The hollow energy-saving fire door according to claim 2, characterized in that: A through hole is formed on the connecting groove for installing the fusible safety rope.

4. The hollow energy-saving fire door according to claim 2, characterized in that: One end of the spring is installed in the connecting groove, and the other end is connected to the closing plate.

5. The hollow energy-saving fire door according to claim 4, characterized in that: The closing plate is slidably arranged in the connecting groove. An installation groove is formed on the closing plate, and a sealing gasket is installed in the installation groove for sealing the gap between the two closing plates; A buckle groove is formed on the closing plate, serving as an operating point when manually driving the closing plate.

6. The hollow energy-saving fire door according to claim 1, characterized in that: The melting point of the fusible safety rope is lower than that of the glass window, and the resistance provided by the fusible safety rope is greater than the elastic force provided by the spring.

7. The hollow energy-saving fire door according to claim 5, characterized in that: A positioning block is installed on the damper, and the positioning block is installed in the connecting groove. The damper is a double-headed damper.

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