Composite structure type seam blocking strip for wooden fireproof door

Abstract

The utility model belongs to the technical field of wooden fireproof doors, and particularly relates to a composite structure type seam blocking strip for a wooden fireproof door. The composite structure type seam blocking strip for the wood fireproof door comprises a door frame, a plurality of hinges are installed at the left end and the right end of the inner wall of the door frame at equal intervals, door leaves are rotationally connected to the left end and the right end of the inner wall of the door frame through the hinges, seam blocking assemblies used for seam blocking of the fireproof door are installed on the outer walls of the door leaves, and each seam blocking assembly comprises a transverse plate which is fixedly connected to the top wall of the corresponding door leaf; the tail end of the transverse plate is fixedly connected with a vertical plate, the outer wall of the vertical plate is attached to the outer wall of the door leaf, the transverse plate and the vertical plate both adopt flame-retardant hardwood made of the same material as the door leaf as a base body, a plurality of mounting holes are formed in the outer wall of the vertical plate at equal intervals, and the vertical plate and the door leaf are fixedly mounted through the mounting holes. The ladder type fireproof barrier can be achieved through the vertical plates of the composite structure design and the transverse plates formed by the multiple layers of materials, meanwhile, the ladder type fireproof barrier is used in cooperation with the expansion materials and the buffer layers, the risk of sealing failure is reduced, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wood fireproof door technical field, concretely is a kind of composite structure formula blocking joint strip for wood fireproof door. BACKGROUND

[0002] Fire door blocking joint strip is also called fire door cover joint plate or fireproof sealing strip, which is a special accessory for fire doors. Its main function is to ensure that the fire door can effectively seal the gap between the door leaf and the door frame and the gap between the door leaf and the door leaf in the closed state, preventing the spread of fire and smoke through these gaps, thereby improving the fire resistance of the fire door.

[0003] The existing fire door blocking joint strip has the following technical defects: the metal or rubber blocking joint strip has a large difference in thermal expansion coefficient with the wooden door body, and is easily separated at high temperature. At the same time, it only relies on a single layer of material for sealing, which is easily ablated and fails during a fire, resulting in a single sealing effect. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of composite structure formula blocking joint strip for wood fireproof door, to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of composite structure formula blocking joint strip for wood fireproof door, including door frame, the inner wall left and right ends of the door frame are equally spaced and installed with a plurality of hinges, the inner wall left and right ends of the door frame are rotationally connected with door leaf by hinge, the outer wall of the door leaf is installed with the blocking joint assembly for fire door blocking joint.

[0006] Preferably, the blocking joint assembly includes a horizontal plate fixedly connected to the top wall of the door leaf, the end of the horizontal plate is fixedly connected with a vertical plate, the outer wall of the vertical plate is attached to the outer wall of the door leaf, the horizontal plate and the vertical plate are made of the same fire-retardant hardwood as the material of the door leaf, a plurality of mounting holes are equally spaced on the outer wall of the vertical plate, and the vertical plate is fixedly installed with the door leaf through the mounting holes.

[0007] Preferably, the outer surface of the vertical plate is coated with a fireproof ceramic layer, and the material of the fireproof ceramic layer is made of a composite of aluminum silicate ceramic fiber and inorganic binder.

[0008] Preferably, the outer wall of the horizontal plate is fixedly installed with a stainless steel layer and a buffer layer from top to bottom.

[0009] Preferably, an inner cavity is formed in the door leaf, and the inner cavity is filled with aerogel particles.

[0010] Preferably, a guide groove is formed in the top wall of the stainless steel layer, and an intumescent material is installed in the inner wall of the guide groove, the intumescent material includes a graphite-based intumescent strip and a high-temperature-resistant fiberglass cloth wrapped thereon.

[0011] Preferably, the material of the buffer layer is made of high-temperature-resistant silica gel material.

[0012] Compared with the prior art, the wood fireproof door composite structure type joint strip has the advantages that the vertical plate designed in a composite structure and the horizontal plate composed of multiple layers of materials realize a stepped fireproof barrier, and the horizontal plate is used in cooperation with the expansion material and the buffer layer to reduce the risk of sealing failure and improve the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a partial split structural schematic diagram of the wood fireproof door composite structure type joint strip proposed by the utility model;

[0015] Figure 3 It is a vertical plate structural schematic diagram of the wood fireproof door composite structure type joint strip proposed by the utility model;

[0016] Figure 4 It is a horizontal plate structural schematic diagram of the wood fireproof door composite structure type joint strip proposed by the utility model.

[0017] In the drawing: 1, door frame; 2, hinge; 3, door leaf; 4, horizontal plate; 41, vertical plate; 42, mounting hole; 5, fireproof ceramic layer; 6, flow guide groove; 7, expansion material; 8, inner cavity; 9, aerogel particles; 10, stainless steel layer; 11, buffer layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4The utility model provides a technical scheme: a composite structure formula fender strip for wooden fireproof door, including door frame 1, the inside wall left and right ends of door frame 1 are equally spaced and install multiple hinges 2, the inside wall left and right ends of door frame 1 are all rotationally connected with door leaf 3 through hinge 2, the outer wall of door leaf 3 is installed with the fender assembly for the fender of fireproof door, fender assembly includes horizontal plate 4, horizontal plate 4 fixedly connected at the top wall of door leaf 3, the end of horizontal plate 4 is fixedly connected with vertical plate 41, the outer wall of vertical plate 41 is attached with the outer wall of door leaf 3, and horizontal plate 4 and vertical plate 41 all adopt the same fire -retardant hardwood as the base body of door leaf 3, a plurality of mounting holes 42 are equally spaced and set up on the outer wall of vertical plate 41, and vertical plate 41 is fixedly installed through mounting hole 42 and door leaf 3.

[0020] Through the above technical scheme, the fireproof door is designed as a double door structure, the wooden base body of the fireproof door and the base bodies of the horizontal plate 4 and the vertical plate 41 are made of the same material, so that the difference in the thermal expansion coefficient caused by different materials is avoided, and the left and right horizontal plates 4 and the vertical plate 41 are integrally formed as a T-shaped structure, and the vertical plate 41 can be quickly disassembled and assembled through the mounting holes 42.

[0021] Please refer to Figure 3 and Figure 4 , the outer surface of the vertical plate 41 is covered with a fireproof ceramic layer 5, the material of the fireproof ceramic layer 5 is made of aluminum silicate ceramic fiber and inorganic binder, the outer wall of the horizontal plate 4 is fixedly installed with a stainless steel layer 10 and a buffer layer 11 from top to bottom, the top wall of the stainless steel layer 10 is provided with a flow guide groove 6, the inner wall of the flow guide groove 6 is installed with an intumescent material 7, and the intumescent material 7 includes a graphite-based intumescent strip and a high-temperature-resistant glass fiber cloth wrapped thereon.

[0022] Through the above technical scheme, the horizontal plate 4 and the vertical plate 41 are designed as a composite structure through a multi-layer structure, so as to form a stepped fireproof barrier and improve the fire resistance limit of the fireproof door, the top wall and both sides of the horizontal plate 4 are attached with a 1mm-thick 304 stainless steel plate to form the stainless steel layer 10, the intumescent material 7 can precisely fill irregular gaps, and at the same time, in combination with the buffer layer 11, compensate for the thermal expansion and contraction deformation, thereby greatly reducing the risk of sealing failure.

[0023] Please refer to Figure 2 and Figure 3 , an inner cavity 8 is formed in the door leaf 3, and the inner cavity 8 is filled with aerogel particles 9, and the material of the buffer layer 11 is made of high-temperature-resistant silica gel material.

[0024] Through the above technical scheme, the inner part of the door leaf 3 is filled with aerogel particles 9, so that the heat can be delayed by the aerogel and transmitted to the wooden base body, and the bottom of the horizontal plate 4 is fixedly installed with a 2mm-thick high-temperature-resistant silica gel buffer layer 11, thereby further improving the durability of the structure.

[0025] Working principle: the left and right door leaves 3 are rotatably connected to the inner wall of the door frame 1 through the hinges 2, forming a double-opening door design, meanwhile, the outer side of the top wall of the door leaves 3 is connected with the horizontal plate 4 and the vertical plate 41 respectively, the horizontal plate 4 and the vertical plate 41 are fixed as a whole, the vertical plate 41 is fixedly installed with the door leaves 3 through the mounting hole 42 of the outer wall, a T-shaped blocking strip is formed through the horizontal plate 4 and the vertical plate 41 on the left and right sides, the horizontal plate 4 and the vertical plate 41 are both designed as a composite structure, the upper and lower sides of the horizontal plate 4 are respectively installed with the stainless steel layer 10 and the buffer layer 11, the outer surface of the vertical plate 41 is coated with the fireproof ceramic layer 5, the fireproof ceramic layer 5 is made of aluminum silicate ceramic fiber and inorganic binder, and the thickness is 2-3mm, so that the upper limit of the structural fire resistance temperature is greatly improved, the expansion material 7 contains graphite-based expansion strips and high-temperature-resistant fiberglass cloth wrapped outside, so that the expansion ratio is increased, when a fire occurs, the fireproof ceramic layer 5 is firstly impacted by the fire, the aerogel particles 9 in the inner cavity 8 delay the heat transfer to the wooden matrix, the expansion material 7 is sealed again, so as to form a stepped fireproof barrier.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite structure joint strip for wooden fire doors, comprising a door frame (1), characterized in that: Multiple hinges (2) are installed at equal intervals on the left and right sides of the inner wall of the door frame (1). Door leaves (3) are rotatably connected to the left and right sides of the inner wall of the door frame (1) through the hinges (2). A gap-blocking component for fire door gap blocking is installed on the outer wall of the door leaf (3).

2. The composite structure seam barrier strip for wooden fire doors according to claim 1, characterized in that: The gap-blocking assembly includes a horizontal plate (4), which is fixedly connected to the top wall of the door leaf (3). A vertical plate (41) is fixedly connected to the end of the horizontal plate (4). The outer wall of the vertical plate (41) is attached to the outer wall of the door leaf (3). Both the horizontal plate (4) and the vertical plate (41) are made of the same flame-retardant hardwood as the base material as the door leaf (3). The outer wall of the vertical plate (41) is provided with multiple mounting holes (42) at equal intervals. The vertical plate (41) is fixedly installed to the door leaf (3) through the mounting holes (42).

3. The composite structure joint-blocking strip for wooden fire doors according to claim 2, characterized in that: The outer surface of the vertical plate (41) is covered with a fireproof ceramic layer (5), which is made of aluminum silicate ceramic fiber and inorganic binder.

4. A composite structure joint-blocking strip for wooden fire doors according to claim 2, characterized in that: The outer wall of the horizontal plate (4) is fixedly installed with a stainless steel layer (10) and a buffer layer (11) on the upper and lower sides respectively.

5. A composite structure joint-blocking strip for wooden fire doors according to claim 1, characterized in that: The door leaf (3) has an inner cavity (8) inside, and the inner cavity (8) is filled with aerogel particles (9).

6. A composite structure joint-blocking strip for wooden fire doors according to claim 4, characterized in that: The top wall of the stainless steel layer (10) is provided with a flow channel (6), and the inner wall of the flow channel (6) is provided with an expansion material (7). The expansion material (7) includes a graphite-based expansion strip and a high-temperature resistant fiberglass cloth wrapped around it.

7. A composite structure joint-stop strip for wooden fire doors according to claim 4, characterized in that: The buffer layer (11) is made of high-temperature resistant silicone material.

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