Fireproof door with heat insulation function

Abstract

The utility model provides a fireproof door with a heat insulation function, which relates to the technical field of fireproof doors and comprises a fireproof door frame, a fireproof door plate is movably hinged to the inner surface of the fireproof door frame, and the fireproof door plate sequentially comprises a fireproof steel plate layer, an aerogel heat insulation felt layer, a rock wool heat insulation layer and an aluminum silicate fiber felt layer from outside to inside. The aerogel heat insulation felt has an extremely low heat conductivity coefficient, the rock wool heat insulation layer and the aluminum silicate fiber felt layer have good heat preservation and heat insulation performance, the three layers have a synergistic effect, heat conduction can be effectively blocked, the surface temperature of the door body is reduced, and the heat insulation effect of the fireproof door is improved; the material of the fireproof door plate has the characteristic of thermal expansion and cold contraction, in a fire high-temperature environment, the metal expansion ring is heated and expanded to extrude the high-temperature-resistant rubber pad on the outer side, so that the high-temperature-resistant rubber pad is tightly attached to the fireproof door frame, and the sealing performance between the fireproof door plate and the fireproof door frame is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof door technical field especially, it is a kind of fireproof door with heat insulation function. BACKGROUND

[0002] In modern building system, fire safety is a vital link, and fireproof door as the key facility of building fireproof separation, undertakes the heavy responsibility of preventing fire spreading, guaranteeing personnel life and property safety.When fire occurs in building, fire will spread rapidly along passageway, corridor and other spaces, fireproof door can form physical barrier within a certain time, control fire in specific area, gain valuable time window for personnel evacuation and fire rescue, whether personnel-intensive commercial complex, school, hospital or residential, industrial plant and other places, fireproof door is widely used, and its performance is directly related to safety when fire occurs.

[0003] The existing fireproof door with heat insulation function has the following shortcomings:

[0004] From the heat insulation performance, the heat insulation layer of traditional fireproof door is mostly constructed by single material.For example, the common perlite plate heat insulation layer, although the perlite plate has certain heat insulation effect, but its thermal conductivity is relatively high, in the high-temperature environment when facing fire, cannot form effective heat insulation barrier, leading to temperature of the other side of door body being too high, which easily causes surrounding combustible material to burn, and in the sealing structure of fireproof door plate and fireproof door frame, simple rubber strip sealing is mostly used, rubber strip is easy to soften and deform under high temperature, so that the sealing property of door gap is reduced, and hot gas and smoke can overflow from gap, which seriously affects the blocking effect of fireproof door.In addition, under the continuous impact of high temperature and flame of fire, door body structure is subjected to great thermal stress and mechanical stress, when the connection strength between fireproof door plate and frame is reduced to a certain extent, door plate is easy to deform or even fall down under the impact of flame and thermal deformation, cannot effectively play the role of fireproof separation, is difficult to guarantee personnel and property safety, so that fire extinguishing and rescue work are in more difficult situation. INVENTION CONTENTS

[0005] The utility model provides a kind of fireproof door with heat insulation function, by multilayer heat insulation structure and innovative sealing, reinforcement design, effectively improve heat insulation performance, sealing property and overall strength, to solve the problem raised in the above background technology.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of fireproof door with heat insulation function, including fireproof door frame, the inner surface of the fireproof door frame is hingedly connected with fireproof door plate, the outer surface of the fireproof door frame is provided with a plurality of reinforcing components, the fireproof door plate includes fireproof steel plate layer, aerogel heat insulation felt layer, rock wool heat insulation layer, aluminum silicate fiber felt layer from outside to inside.

[0007] Preferably, the fireproof steel plate layer, aerogel thermal blanket layer, rock wool thermal insulation layer, aluminum silicate fiber blanket layer are bonded by adhesive.

[0008] Preferably, the outer surface of the fireproof door panel is provided with a right-angle handle in the middle of the right side.

[0009] Preferably, the outer surface of the fireproof door panel is provided with an annular groove in the rear side, and the inner surface of the annular groove is fixedly connected with a high-temperature-resistant rubber pad.

[0010] Preferably, the inner surface of the annular groove is fixedly connected with a plurality of metal expansion rings, and the metal expansion rings are arranged on the inner side of the high-temperature-resistant rubber pad.

[0011] Preferably, the reinforcing assembly comprises a connecting socket, the connecting socket is arranged on the front surface of the fireproof door frame and penetrates through the rear surface of the fireproof door frame, and the inner surface of the connecting socket is rotatably connected with a connecting socket pipe.

[0012] Preferably, the front and rear ends of the connecting socket pipe are fixedly connected with rotating baffles, and the two rotating baffles are rotatably connected on the front and rear sides of the fireproof door panel.

[0013] Preferably, the middle part of the connecting socket pipe is slidably connected with a front and rear penetrating push column, and the outer surface of the push column is provided with a connecting sliding groove in the middle part.

[0014] Preferably, the inner surface of the connecting sliding groove is fixedly connected with a clamping spring, and one end of the clamping spring is fixedly connected with a trapezoidal positioning plate.

[0015] Preferably, the inner surface of the connecting socket is annularly arranged with two positioning clamping grooves, the outer surface of the trapezoidal positioning plate is slidably connected with the inner surface of the connecting sliding groove, and the end away from the clamping spring penetrates into the inner part of the positioning clamping groove.

[0016] Due to the adoption of the above technical scheme, the technical progress achieved by the present application relative to the prior art is:

[0017] 1. In this utility model, the fireproof door panel adopts a multi-layer heat insulation structure consisting of an aerogel heat insulation felt layer, a rock wool heat insulation layer, and an aluminum silicate fiber felt layer. The aerogel heat insulation felt has an extremely low thermal conductivity, while the rock wool heat insulation layer and the aluminum silicate fiber felt layer have good thermal insulation performance. The three layers work together to effectively block heat conduction, reduce the surface temperature of the door, and improve the heat insulation effect of the fireproof door. At the same time, the metal expansion ring set in the annular groove on the back of the fireproof door panel has the characteristics of thermal expansion and contraction. In the high-temperature environment of a fire, the metal expansion ring expands due to heat, which will squeeze the high-temperature resistant rubber pad on the outside, so that the high-temperature resistant rubber pad is tightly fitted to the fireproof door frame, further enhancing the sealing between the fireproof door panel and the fireproof door frame, effectively preventing hot air from escaping from the door gaps, preventing smoke diffusion, and better protecting the safety of people inside the room.

[0018] 2. In this utility model, the reinforcing component achieves reinforcement of the fireproof door panel through ingenious structural design. When it is necessary to enhance the strength of the fireproof door panel, the pushing column is squeezed, causing the trapezoidal positioning plate to slide within the connecting groove. The inclined surface of the trapezoidal positioning plate is squeezed by the inner wall of the connecting tube, thus retracting from the positioning slot back into the connecting groove. At this time, the connecting tube is no longer restricted, and the rotating baffles at both ends of the connecting tube can be rotated to the front and rear sides of the fireproof door panel. The rotating baffles engage with the fireproof door panel, providing additional support for the fireproof door panel and enhancing the connection strength between the fireproof door frame and the fireproof door panel. In the event of a fire, this reinforcement structure can effectively resist high temperatures and flame impacts, preventing the fireproof door panel from deforming and tipping over, ensuring that the fireproof door can stably perform its fire-resistant separation function for a long time, and buying more time for personnel evacuation and fire rescue. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the fire door with heat insulation function according to this utility model;

[0020] Figure 2 This is a structural schematic diagram of the fireproof door panel of this utility model;

[0021] Figure 3 This is an enlarged structural schematic diagram of the fireproof door panel of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the fireproof door panel of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the reinforcement component of this utility model.

[0024] Legend: 1. Fire door frame; 2. Fire door panel; 201. Fireproof steel plate layer; 202. Aerogel insulation felt layer; 203. Rock wool insulation layer; 204. Aluminum silicate fiber felt layer; 21. Right-angle handle; 22. Annular groove; 23. High-temperature resistant rubber pad; 24. Metal expansion ring; 3. Reinforcing component; 31. Connecting socket; 32. Connecting tube; 33. Rotating baffle; 34. Push column; 35. Tightening spring; 36. Trapezoidal positioning plate; 37. Positioning slot. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: including a fire door frame 1, with a fire door panel 2 movably hinged to the inner surface of the fire door frame 1, characterized in that: the outer surface of the fire door frame 1 is provided with a plurality of reinforcing components 3, and the fire door panel 2 includes, from the outside to the inside, a fireproof steel plate layer 201, an aerogel heat insulation felt layer 202, a rock wool heat insulation layer 203, and an aluminum silicate fiber felt layer 204, which are all bonded together with an adhesive. A right-angle handle 21 is provided in the middle of the right side of the outer surface of the fire door panel 2, and an annular groove 22 is provided on the rear side of the outer surface of the fire door panel 2. A high-temperature resistant rubber pad 23 is fixedly connected to the outer side of the inner surface of the annular groove 22, and a plurality of metal expansion rings 24 are fixedly connected to the inner side of the inner surface of the annular groove 22. The metal expansion rings 24 are located inside the high-temperature resistant rubber pad 23.

[0028] The effect achieved by the whole embodiment 1 is that: in normal use, the right-angle handle 21 of the fireproof door plate 2 facilitates personnel to open and close the door, when a fire occurs, the fireproof steel plate layer 201 first resists the impact of the flame, the aerogel thermal insulation felt layer 202 greatly reduces the heat transfer by virtue of the extremely low thermal conductivity, the rock wool thermal insulation layer 203 and the aluminum silicate fiber felt layer 204 further block the heat conduction, the four-layer structure cooperates, the temperature on the other side of the fireproof door plate 2 is significantly reduced, and a good heat insulation effect is achieved. Meanwhile, as the temperature of the fire scene rises, the metal expansion ring 24 expands by heat, extrudes the high-temperature-resistant rubber pad 23 outward, so that the high-temperature-resistant rubber pad 23 is tightly attached to the fireproof door frame 1, the sealing property between the fireproof door plate 2 and the fireproof door frame 1 is enhanced, heat and smoke are effectively prevented from leaking from the door gap, and the life safety and property safety of indoor personnel are better ensured.

[0029] Embodiment 2: as shown in Figures 1-5 The utility model provides a technical scheme: the reinforcing assembly 3 includes connecting socket 31, connecting socket 31 is set up in the front surface of fireproof door frame 1 and is penetrated to the back surface of fireproof door frame 1, the inner surface of connecting socket 31 is rotatably connected with connecting socket 32, the front and back both ends of connecting socket 32 are fixedly connected with rotating baffle 33, and two rotating baffles 33 are rotatably clamped on the front and back sides of fireproof door plate 2 respectively, the middle part of connecting socket 32 is slidably connected with front and back penetrating push column 34, the outer surface middle part of push column 34 is provided with connecting sliding groove, the inner surface of connecting sliding groove is fixedly connected with tight spring 35, one end of tight spring 35 is fixedly connected with trapezoidal positioning plate 36, the inner surface of connecting socket 31 is annularly arranged with two positioning clamping grooves 37, and the outer surface of trapezoidal positioning plate 36 is slidably connected with the inner surface of connecting sliding groove and is penetrated to the inside of positioning clamping groove 37 away from the end of tight spring 35;

[0030] The effect achieved by the whole embodiment 2 is that in daily use, the connecting pipe 32 is fixed in the connecting socket 31 of the fire door frame 1 through the cooperation of the trapezoidal positioning plate 36 and the positioning clamping groove 37, without affecting the normal opening and closing of the fire door plate 2. When facing emergency situations such as fire that require strengthening the strength of the fire door plate 2, the operator squeezes and pushes the pushing column 34, the pushing column 34 slides in the connecting pipe 32, drives the trapezoidal positioning plate 36 to move towards the inside of the connecting sliding groove, the slope of the trapezoidal positioning plate 36 is extruded by the inner wall of the connecting pipe 32, so that it gradually exits from the positioning clamping groove 37, at this time the connecting pipe 32 is no longer limited. Then, the rotating baffle 33 at the front and rear ends of the connecting pipe 32 is rotated to the front and rear sides of the fire door plate 2, the rotating baffle 33 is clamped with the fire door plate 2 to provide additional support for the fire door plate 2, enhance the connection strength between the fire door frame 1 and the fire door plate 2, so that the fire door plate 2 can better resist high temperature and flame impact, avoid deformation or tilting, and ensure that the fire door can play a role in fire separation for a long time, and gain more time for personnel evacuation and fire rescue.

[0031] The working principle of the whole device is that in the normal state, the fire door plate 2 is connected with the fire door frame 1 through the hinged structure, and personnel can easily open and close the fire door through the right-angle handle 21. When the fire occurs, the multi-layer structure of the fire door plate 2 begins to play a role. The fireproof steel plate layer 201 as the outer layer directly bears the flame and high temperature, has high strength and good fireproof performance, and can effectively delay the damage of the flame to the internal materials. The aerogel thermal insulation felt layer 202 greatly reduces the heat conduction speed by using its extremely low thermal conductivity, reduces the heat transfer to the inside of the fire door plate 2. The rock wool thermal insulation layer 203 and the aluminum silicate fiber felt layer 204 further absorb and block heat, isolate heat in the door body through the fiber structure and porous properties, reduce the surface temperature of the door body, and prevent heat conduction to the other side of the door to cause the surrounding combustible materials to burn;

[0032] At the same time, as the temperature of the fire scene continues to rise, the metal expansion ring 24 in the annular groove 22 expands due to heat, and since it is installed on the inside of the high-temperature-resistant rubber pad 23, the pushing force generated by the expansion will extrude the high-temperature-resistant rubber pad 23, so that the high-temperature-resistant rubber pad 23 tightly fits the fire door frame 1, fills the gap between the fire door plate 2 and the fire door frame 1, enhances the sealing effect, effectively prevents the leakage of hot air and smoke from the door gap, and ensures the safety of the indoor environment;

[0033] If the fire is expected to be more serious, the operator can operate the reinforcing assembly 3 to extrude the push column 34, the push column 34 drives the trapezoidal positioning plate 36 to overcome the elastic force of the top spring 35, and the trapezoidal positioning plate 36 is extruded by the inner wall of the connecting plug pipe 32 to retract from the positioning clamping groove 37, so that the connecting plug pipe 32 is released from the fixed state, then the connecting plug pipe 32 is rotated, the rotating baffle 33 at the front and rear ends of the connecting plug pipe 32 is rotated to the front and rear sides of the fireproof door plate 2, the rotating baffle 33 is clamped and matched with the fireproof door plate 2 to provide additional support for the fireproof door plate 2, and the connection strength between the fireproof door frame 1 and the fireproof door plate 2 is enhanced, so that the fireproof door plate 2 can remain stable under the impact of high temperature and flame and is not easy to deform or fall down, and the fireproof door plate 2 can continuously play a role in fireproof separation, more escape time is provided for the trapped personnel, and favorable conditions are created for fire rescue work.

[0034] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belong to the protection scope of the present application technical scheme.

Claims

1. A fireproof door with heat insulation function, comprising a fireproof door frame (1), the inner surface of the fireproof door frame (1) is hingedly connected with a fireproof door plate (2), characterized in that: The outer surface of the fireproof door frame (1) is provided with a plurality of reinforcing assemblies (3), and the fireproof door plate (2) comprises, from outside to inside, a fireproof steel plate layer (201), an aerogel thermal insulation felt layer (202), a rock wool thermal insulation layer (203), and an aluminum silicate fiber felt layer (204).

2. The fireproof door with thermal insulation function according to claim 1, characterized in that: The fireproof steel plate layer (201), the aerogel thermal insulation felt layer (202), the rock wool thermal insulation layer (203), and the aluminum silicate fiber felt layer (204) are bonded by using an adhesive.

3. The fireproof door with thermal insulation function according to claim 1, characterized in that: The outer surface of the fireproof door plate (2) is provided with a right-angle handle (21) at the middle of the right side.

4. The fireproof door with thermal insulation function according to claim 1, characterized in that: An annular groove (22) is formed in the outer surface of the rear side of the fireproof door plate (2), and a high-temperature-resistant rubber pad (23) is fixedly connected to the inner surface of the annular groove (22).

5. The fire door with thermal insulation function according to claim 4, characterized in that: A plurality of metal expansion rings (24) are fixedly connected to the inner surface of the annular groove (22) and are arranged on the inner side of the high-temperature-resistant rubber pad (23).

6. The fireproof door with thermal insulation function according to claim 1, characterized in that: The reinforcing assembly (3) comprises a connecting insertion hole (31) formed in the front surface of the fireproof door frame (1) and penetrating through the rear surface of the fireproof door frame (1), and a connecting insertion pipe (32) is rotatably connected to the inner surface of the connecting insertion hole (31).

7. The fire door with thermal insulation function according to claim 6, characterized in that: Rotating baffles (33) are fixedly connected to the front and rear ends of the connecting insertion pipe (32), and the rotating baffles (33) are rotatably connected to the front and rear sides of the fireproof door plate (2), respectively.

8. The fireproof door with thermal insulation function according to claim 6, characterized in that: A front-to-rear pushing column (34) is slidingly connected to the middle of the connecting insertion pipe (32), and a connecting sliding groove is formed in the outer surface of the pushing column (34).

9. The fire door with thermal insulation function according to claim 8, characterized in that: A jacking spring (35) is fixedly connected to the inner surface of the connecting sliding groove, and a trapezoidal positioning plate (36) is fixedly connected to one end of the jacking spring (35).

10. The fire door with thermal insulation function according to claim 9, characterized in that: Two positioning clamping grooves (37) are annularly arranged on the inner surface of the connecting insertion hole (31), and the outer surface of the trapezoidal positioning plate (36) is slidingly connected to the inner surface of the connecting sliding groove and penetrates through the inner part of the positioning clamping groove (37) away from the jacking spring (35).

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