WO2021244631A1

WO2021244631A1 - Indoor fireproof door and manufacturing method therefor

Info

Publication number: WO2021244631A1
Application number: PCT/CN2021/098280
Authority: WO
Inventors: 于本波
Original assignee: 于本波
Priority date: 2020-06-05
Filing date: 2021-06-04
Publication date: 2021-12-09
Also published as: CN219528851U; CN113153111B; CN111827847A; CN113153111A

Abstract

An indoor fireproof door and a manufacturing method therefor. The indoor fireproof door comprises a door frame (1) and a door leaf (2), the door leaf (2) being sequentially provided with a door leaf framework (8), a fireproof expansion sealing member (6) and a perlite fireproof door core plate (10) in the cross section, a gap being provided between the door frame (1) and the door leaf (2), and the door frame (1) being connected to the door leaf (2) by means of fireproof hinges (4). The manufacturing method comprises the following steps: firstly, laminating multiple layers of wood veneers and a glass magnesium board on a cold press by means of a fireproof adhesive; cutting the laminated big plate and sawing same into timbers; then raising and assembling the timbers, and sorting the frames and assembling same; and finally placing the perlite fireproof door core plate (10) in the frame composed of the timbers, and filling the gap between the timbers and the perlite fireproof door core plate (10) with a fireproof sealing rubber strip (6). The indoor fireproof door has a good flame retardant effect and facilitates automatic production.

Description

Indoor fire door and preparation method thereof

Technical field

The invention relates to the technical field of fire doors, in particular to an indoor fire door and a preparation method thereof.

Background technique

The traditional fire door is fire-retardant with solid wood. First, the natural wood is passed through the flame-retardant tank, the flame-retardant liquid is added to the tank, the wood is put into the tank, the wood is vacuumed, and the flame-retardant hydraulic pressure is pressed into the wood, and then the water is drained and dried. It is made of wooden cubes, cut and pressed together.

This kind of fire door mainly has the following problems:

First of all, in the process of using flame-retardant wood for traditional fire doors, the flame-retardant liquid will naturally volatilize if the time is too long, so that the real flame-retardant effect will not be achieved;

Secondly, after the solid wood cube is dried, the material can be modified before the basic frame operation of the door leaf. This process wastes a lot of time, manpower and financial resources in the raw material preparation process, and the operation efficiency is low, which is not convenient for the modern door leaf automatic line. Production;

Third, when the traditional technology is filling the core of the fire door, there will be a certain gap between the core of the fire door and the frame of the door leaf. This gap will have a certain impact on the fire resistance time of the fire door, and it is easy to cause fire. As a result, the standard fire resistance time cannot be reached.

Summary of the invention

The present invention aims at the technical problems of the existing fire doors with poor flame retardant effect, inconvenient automatic production, and inability to reach the standard fire resistance time, and provides a fire-retardant effect that is good for automatic production and can reach the standard fire resistance time. Indoor fire door and preparation method thereof.

To this end, the present invention provides an indoor fire door, which is provided with a door frame and a door leaf. There is a gap between, and the door frame and the door leaf are connected by a fireproof hinge.

Preferably, a fireproof expansion seal is embedded in one side of the door frame, and the fireproof expansion seal is π-shaped.

Preferably, the fireproof expansion seal is arranged in the middle of the door leaf, and a shock-absorbing strip is arranged on the other surface perpendicular to the door frame; the door frame is provided with a soft magnetic attraction at the contact position with the door leaf.

Preferably, the inner layer of the door leaf is a perlite fire-resistant door core board, the two outer sides of the perlite fire-resistant door core board are provided with high-performance flame-retardant composite boards, and the outer side of the high-performance flame-retardant composite board is provided with density boards.

Preferably, a door stop line and a door cover are further provided, the door stop line position is provided with a fireproof expansion sealing strip groove and a silent suction strip, the back position of the door cover is also provided with a fire sealing strip groove, the fireproof seal An expansion sealing strip is arranged in the groove.

Preferably, the bottom of the door leaf is the bottom of a door panel, a groove is provided on the bottom of the door panel, and a fire-proof expansion seal is arranged on the groove

The present invention also provides a method for preparing an indoor fire door, which includes the following steps: Step 1: Firstly, the multilayer veneer and the glass magnesium board are pressed on a cold press through a fireproof glue; Step 2: The step 1 The compressed large slab is cut and sawed into wooden squares; Step 3: The wooden squares obtained in the step 2 are erected and assembled, and framed and framed; Step 4: Put the inside of the wooden squares into the perlite fireproof board, and fill the gaps Fire-proof sealing rubber strip, the fire-proof expansion strip plays a role of fire prevention.

Preferably, the product obtained in step 4 is coated with fireproof adhesive on both sides, and then placed on both sides of the glass magnesium board, then put into the press, after pressing, take it out, and again apply fireproof adhesive on both sides and put MDF on both sides. Then put it into the cold press again, press to form the door edge, and seal the door edge with flame-retardant edge sealing strips around the door.

Preferably, the laminated fire-retardant board is cut into the width of the door cover, and then the door stop line is pressed into the wooden board again, and a slot for the fire-proof sealing strip is opened on the door cover, and inlaid in the slot Into the fireproof expansion sealing strip.

Preferably, in the step 3, the code frame is combined and arranged in a staggered code frame manner.

The present invention has the following beneficial effects:

(1) The position of the door stop line of the present invention is provided with a fireproof expansion sealing strip groove and a silent suction strip, so that the sealing effect of the fireproof door and the door cover will be better after the fire protection performance is achieved. The back position of the door cover is also provided with 3 A fire-proof sealing strip groove with a width of cm, and an expansion sealing strip is embedded in the fire-proof sealing strip groove to improve the fire strength of the fire door; the other vertical side of the door frame is equipped with a shock absorbing strip with fire prevention effect;

(2) The code frame adopts the staggered code frame method for combination arrangement, thereby improving the strength of the door leaf;

(3) A fireproof expansion seal is embedded in one side of the door frame, and the fireproof expansion seal is π-shaped. The same π-shaped groove is opened on the door frame to install the fireproof expansion seal in the groove and is not easy to fall off.

Description of the drawings

Figure 1 is a schematic diagram of the internal structure of the indoor fire door of the present invention;

Figure 2 is a schematic diagram of the external structure of the indoor fire door of the present invention;

Figure 3 is a cross-sectional view of Figure 2 A-A;

Figure 4 is a B-B cross-sectional view of Figure 2;

Figure 5 is a partial enlarged view of Figure 2;

Figure 6 is a bottom schematic view of the indoor fire door of the present invention.

Attached icon number description:

1. Door frame; 2. Door leaf; 3. Fire lock; 4. Fire hinge; 5. Magnetic sealing strip; 6. Fire expansion seal; 7. Anti-collision sealing strip; 8. Door leaf frame; 9. High performance flame retardant Composite board; 10. Core board of perlite fire door; 11. Bottom of door panel; 12. Groove.

detailed description

The present invention will be further described below in conjunction with embodiments.

The manufacturers of the high-performance flame-retardant composite boards used in the following examples are Xinyang Meilizhenhao Straw New Material Technology Co., Ltd.; the manufacturer of the perlite fire door core board is Zhongtian Environmental Protection (Yancheng) Co., Ltd.; glass magnesium Fireproof board and MDF are conventional models.

The indoor fire-proof door provided by the present invention is provided with a door frame 1 and a door leaf 2. The cross-section of the door leaf 2 is provided with a door frame 8, a fire-proof expansion seal 6 and a perlite fire-resistant door core plate 10 in turn. Between the door frame 1 and the door leaf 2, there are In the gap, door frame 1 and door leaf 2 are connected by fire-proof hinge 4. Door frame 1 is provided with soft magnetic and magnetic sealing strip 5 at the contact position of door leaf 2, magnetic sealing strip 5 is set at an angle of 45° to ensure that door leaf 2 is the same as the door The sleeve is seamless and has the effect of fire and sound insulation. Fireproof The hinge 4 can fix the door leaf 2 on the door frame 1, and can be opened freely.

As shown in Figure 1-5, a fire-proof expansion seal 6 is embedded on one side of the door frame 1. The fire-proof expansion seal 6 is π-shaped, and the fire-proof expansion seal 6 is set in the middle of the door leaf 2, at a vertical position to the door frame 1. There is a shock-absorbing strip on the other side. The same π-shaped groove is opened on the door frame 1, and the fireproof expansion seal 6 is installed in the groove and is not easy to fall off.

As shown in Figure 1-5, the inner layer of the door leaf 2 is the perlite fire-resistant door core board 10, the outer side of the perlite fire-resistant door core board 10 is equipped with a high-performance flame-retardant composite board 9, and the outer side of the high-performance flame-retardant composite board 9 is provided Density board.

The preparation method of the indoor fire door provided by the present invention includes the following steps: Step 1: Firstly, the multilayer veneer and the glass magnesium board are compressed on a cold press with a fireproof glue to form a large board with a thickness of 8 cm; Step 2: After the big slab is cut and sawed into wooden squares; Step 3: Stand up and assemble the square wood in step 2 and stack the frame, and the wooden door can be used by erecting the wooden door in the process of use, using the stacking group The frame prevents the wooden door from bending and has the effect of flame retardant; Step 4: Put the perlite fireproof board inside the coded frame, and fill the gap with fireproof sealing tape, and the fireproof expansion strip plays a fireproof effect.

Further put a glass magnesium board on both sides after applying fire-resistant adhesive on both sides and put them into the press, press in a cold press with a pressure of 10 tons and take it out after 6 hours, and apply fire-resistant adhesive on both sides again. Put a piece of density board on each and put it into the cold press again, press it in a cold press with a pressure of 10 tons for 6 hours and then press it to form the door edge, and seal it with flame-retardant edge banding around the door edge .

Cut the laminated flame-retardant board into the width of the door cover, seal the door cover board with the flame-retardant edge banding strip, and then press the door stop line into the board again, and open the door cover to a width of 2 cm The slot hole of the fireproof sealing strip, and the fireproof expansion sealing strip is inserted into the slot hole.

The door stop line is equipped with a fireproof expansion sealing strip groove and a silent suction strip, so that the sealing effect of the fireproof door and the door cover will be better after the fireproof performance. The back of the door cover is also equipped with a 3 cm wide fireproof seal Strip grooves, and embed expansion sealing strips in the fire-proof sealing strip grooves, thereby improving the fire-proof strength of the fire-proof door.

The expansion sealing strip will expand more than 30 times when exposed to fire.

The code frame adopts a staggered code frame method for combined arrangement, thereby improving the strength of the door leaf.

As shown in Figure 6, the bottom of the door leaf 2 is a door panel bottom 11, and a groove 12 is provided on the door panel bottom 11, and a fire-proof expansion seal 6 is arranged on the groove 12 to ensure the door frame 1 and the door leaf 2 When encountering a fire, the gaps between them can be completely closed in time, so as to achieve a better fire protection effect.

According to the Chinese National Standard GB12955-2008 "Fire Doors", NCFE-FJR2-05:2009 "National Consumer Product Quality Classification and Certification Implementation Rules for Refractory Component Products", the China National Fixed Fire Extinguishing System and Refractory Component Quality Supervision and Inspection Center for the present invention The product (model specification: MFM-1124-d5A1.50 (Grade A)-1-X-JO-belt shape) inspection conclusion is: qualified. Among them, the integrity of fire resistance: greater than 1.5h, there is no flame on the back of the sample; the cotton pad is not ignited; there is no crack that penetrates into the test furnace. Fire resistance and heat insulation: more than 1.5h, the average temperature rise on the back of the test piece is 49℃, the highest single point temperature rise (except the door frame) is 90℃, and the highest single point temperature rise on the door frame is 354℃.

However, the above are only specific embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the replacement of equivalent components, or equivalent changes and modifications made in accordance with the scope of the patent protection of the present invention, shall apply. It still belongs to the scope covered by the claims of the present invention.

Claims

An indoor fire door, which is provided with a door frame and a door leaf, and is characterized in that the cross section of the door leaf is sequentially provided with a door leaf frame, a fire-proof expansion seal, and a perlite fire-resistant door core plate, and the door frame and the door leaf are arranged between There is a gap, and the door frame and the door leaf are connected by a fire-proof hinge.
The indoor fireproof door according to claim 1, wherein a fireproof expansion seal is embedded in one side of the door frame, and the fireproof expansion seal is π-shaped.
The indoor fireproof door according to claim 1, wherein the fireproof expansion seal is arranged in the middle position of the door leaf, and a shock-absorbing strip is arranged on the other surface perpendicular to the door frame; The contact position of the door leaf is provided with a soft magnetic attraction.
The indoor fire door according to claim 1 or 2, wherein the inner layer of the door leaf is a perlite fire door core board, and both outer sides of the perlite fire door core board are provided with high-performance flame-retardant composite boards. A density board is arranged on the outside of the high-performance flame-retardant synthetic board.
The indoor fire door according to claim 3, characterized in that it is further provided with a door stop line and a door cover, the door stop line position is provided with a fireproof expansion sealing strip groove and a silent suction strip, and the back position of the door cover A fire-proof sealing strip groove is also provided, and an expansion sealing strip is arranged in the fire-proof sealing strip groove.
The indoor fire door according to claim 1, wherein the bottom of the door leaf is the bottom of the door panel, and the bottom of the door panel is provided with a groove, and a fire-proof expansion seal is arranged on the groove.
The method for preparing an indoor fire door according to claim 1, characterized in that it comprises the following steps:

Step 1: First, press the multilayer veneer and the glass magnesium board on the cold press through the fireproof glue;

Step 2: Cutting the big slabs made in step 1 and sawing them into squares;

Step 3: Stand up and assemble the wooden squares obtained in step 2 and stack them into frames;

Step 4: Put the inside of the wooden square into the perlite fireproof board, and fill the gaps with fireproof sealant strips, and the fireproof expansion strips play a role in fire prevention.
The method for preparing an indoor fire door according to claim 7, characterized in that the product obtained in step 4 is coated with fireproof glue on both sides and a glass magnesium board is placed on both sides and then put into the press and pressed After closing, take it out, apply fire-retardant adhesive on both sides again, put the density board on both sides, put it in the cold press again, press to form the door edge, and seal the door edge with flame-retardant edge banding.
The method for preparing an indoor fire door according to claim 7, characterized in that the laminated fire-retardant board is cut into the width of the door cover, and then the door stop line is pressed into the wooden board again and placed on the door cover Slot holes for fire-proof sealing strips are opened on the upper part, and fire-proof expansion sealing strips are inlaid in the slots.
The method for preparing an indoor fire door according to claim 7, characterized in that, in the step 3, the code frame adopts a staggered code frame for combined arrangement.