Flame-retardant structure based on fireproof door

Abstract

The utility model relates to the technical field of fireproof doors, and discloses a flame-retardant structure based on a fireproof door, which comprises a fireproof door body, the front side of the fireproof door body is fixedly connected with a handle, the fireproof door body is fixedly connected with a door lock body, one side of the fireproof door body is provided with a mounting groove, and the mounting groove is provided with a mounting hole. The fireproof door comprises a fireproof door body, a mounting groove is formed in the fireproof door body, a fireproof expansion sealing strip is arranged in the mounting groove, a clamping block is slidably connected into the mounting groove, a connecting rod is fixedly connected to one side of the clamping block, the connecting rod penetrates through one side of the fireproof door body, and the connecting rod is slidably connected with one side of the fireproof door body. According to the flame-retardant structure based on the fireproof door, by arranging the fireproof expansion sealing strip, when a fire breaks out, the fireproof expansion sealing strip expands actively to block a door gap and isolate air circulation between two spaces, harm of dense smoke, toxic gas and hot air in the early stage of the fire to a human body is effectively avoided, and fire behavior extension is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a flame retardant structure for fireproof doors. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with a certain degree of fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.

[0003] After searching, a Chinese patent with publication number CN216767201U discloses a fire door, which belongs to the technical field of fire protection equipment. It includes a door shell, a first fire protection layer and a honeycomb panel. The first fire protection layer is fixed on one side of the honeycomb panel, and the door shell is fixed on the side of the honeycomb panel away from the first fire protection layer. The projections of the honeycomb panel and the first fire protection layer in the plane where the honeycomb panel is located completely overlap, and the projection of the honeycomb panel in the plane where the honeycomb panel is located is completely placed in the projection of the door shell in the plane where the honeycomb panel is located. The honeycomb panel is a panel composed of multiple hexagonal frames and is honeycomb-shaped. The first fire protection layer is a fire protection layer made of fire protection material. The present application has the effect of good fire protection performance of the fire door.

[0004] However, this type of fire door is not sealed enough to prevent thick smoke, toxic gases and hot air from entering the door in the early stage of a fire, causing harm to the human body and controlling the spread of the fire. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a flame retardant structure for fireproof doors. Its advantage is that when a fire breaks out, the fireproof expansion seal strip can be actively expanded to block the door gap, isolate the air circulation between the two spaces, effectively avoid the damage to the human body caused by the early smoke, toxic gases and heat in the fire, and control the spread of the fire.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a flame-retardant structure for a fire door, comprising a fire door body, a handle fixedly connected to the front side of the fire door body, a door lock body fixedly connected to the fire door body, a mounting groove opened on one side of the fire door body, a fire-proof expansion sealing strip arranged in the mounting groove, a clamping block slidably connected in the mounting groove, a connecting rod fixedly connected to one side of the clamping block, the connecting rod passes through one side of the fire door body, the connecting rod and one side of the fire door body are slidably connected, a spring is fixedly sleeved on the connecting rod, one end of the spring is fixedly connected to the clamping block, the other end of the spring is fixedly connected to one side of the mounting groove, an end of the connecting rod away from the clamping block is fixedly connected to the connecting block, and an end of the connecting block away from the connecting rod is fixedly connected to the connecting ring.

[0009] Preferably, the clamping block is in contact with the fireproof expansion sealing strip, and when the clamping block is in contact with the fireproof expansion sealing strip, the spring is in a compressed state.

[0010] With this arrangement, when a fire occurs, the fireproof expansion sealing strip will automatically expand to block the door gap, isolate the air circulation between the two spaces, effectively prevent the damage to the human body caused by thick smoke, toxic gases and heat in the early stage of the fire and control the spread of the fire.

[0011] Preferably, a flame retardant layer is fixedly connected to the surface of the fire door body, and the material of the flame retardant layer is a flame retardant board.

[0012] This arrangement makes the protective door flame-retardant and improves the safety of the fire door.

[0013] Preferably, an impact-resistant layer is fixedly connected to the surface of the flame-retardant layer, and the material of the impact-resistant layer is foam.

[0014] The foam arranged in this way has a series of characteristics such as elasticity, light weight, rapid pressure-sensitive fixation, easy use, free bending, ultra-thin volume, and reliable performance.

[0015] Preferably, a corrosion-resistant layer is fixedly connected to the surface of the impact-resistant layer, and the corrosion-resistant layer is made of glass fiber.

[0016] This setting makes the fire door have good protective performance and is not easy to corrode.

[0017] Preferably, a metal layer is fixedly connected to the surface of the corrosion-resistant layer.

[0018] This arrangement makes the fire door more beautiful.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a flame retardant structure for fire doors, which has the following beneficial effects:

[0021] 1. This flame retardant structure for fire doors is equipped with a fire-proof expansion sealing strip. When a fire occurs, the fire-proof expansion sealing strip will automatically expand to block the gap between the door and isolate the air circulation between the two spaces, effectively avoiding the damage to the human body caused by thick smoke, toxic gases and heat in the early stage of the fire and controlling the spread of the fire.

[0022] 2. This flame-retardant structure for fire doors has a flame-retardant layer made of a flame-retardant board, which makes the protective door flame-retardant and improves the safety of the fire doors. An impact-resistant layer is fixedly connected to the surface of the flame-retardant layer, and the material of the impact-resistant layer is foam, so that the fire doors have impact resistance. A corrosion-resistant layer is fixedly connected to the surface of the impact-resistant layer, and the material of the corrosion-resistant layer is glass fiber, so that the fire doors have good protective performance and are not easy to corrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is the front view of the utility model;

[0025] Figure 2 It is a top view of the utility model;

[0026] Figure 3 It is an enlarged view of part A of the utility model;

[0027] Figure 4 It is a cross-sectional view of the utility model.

[0028] In the figure: 1. Fire door body; 2. Handle; 3. Door lock body; 4. Installation groove; 5. Fire expansion sealing strip; 6. Clamping block; 7. Connecting rod; 8. Spring; 9. Connecting block; 10. Connecting ring; 11. Flame retardant layer; 12. Impact-resistant layer; 13. Corrosion-resistant layer; 14. Metal layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] like Figure 1-4As shown, the utility model provides a flame retardant structure for a fire door, including a fire door body 1, a handle 2 is fixedly connected to the front side of the fire door body 1, a door lock body 3 is fixedly connected to the fire door body 1, a mounting groove 4 is opened on one side of the fire door body 1, a fire expansion sealing strip 5 is arranged in the mounting groove 4, a clamping block 6 is slidably connected in the mounting groove 4, by setting the clamping block 6 to contact with the fire expansion sealing strip 5, and when the clamping block 6 and the fire expansion sealing strip 5 are in contact, the spring 8 is in a compressed state, so that when a fire occurs, the fire expansion sealing strip 5 will actively expand to block the gap of the door seam and isolate the air circulation between the two spaces, effectively avoiding the damage to the human body caused by thick smoke, toxic gases and heat in the early stage of the fire and controlling the extension of the fire, a connecting rod 7 is fixedly connected to one side of the clamping block 6, the connecting rod 7 passes through one side of the fire door body 1, the connecting rod 7 is slidably connected to one side of the fire door body 1, a spring 8 is fixedly sleeved on the connecting rod 7, one end of the spring 8 is fixed to the clamping block 6 The fireproof door body 1 is fixedly connected, and the other end of the spring 8 is fixedly connected to one side of the mounting groove 4. The end of the connecting rod 7 away from the clamping block 6 is fixedly connected with a connecting block 9, and the end of the connecting block 9 away from the connecting rod 7 is fixedly connected with a connecting ring 10. The surface of the fireproof door body 1 is fixedly connected with a flame retardant layer 11, and the material of the flame retardant layer 11 is a flame retardant board. This arrangement makes the protective door have a flame retardant effect and improves the safety of the fireproof door. The surface of the flame retardant layer 11 is fixedly connected with an impact-resistant layer 12, and the material of the impact-resistant layer 12 is foam. This arrangement of foam has a series of characteristics such as elasticity, light weight, rapid pressure-sensitive fixation, easy use, free bending, ultra-thin volume, and reliable performance. The surface of the impact-resistant layer 12 is fixedly connected with a corrosion-resistant layer 13, and the material of the corrosion-resistant layer 13 is glass fiber. This arrangement makes the fireproof door have a good protective performance and is not easy to corrode. The surface of the corrosion-resistant layer 13 is fixedly connected with a metal layer 14, and this arrangement makes the fireproof door more beautiful.

[0031] In this embodiment, the clamping block 6 is arranged to contact the fire expansion sealing strip 5, and when the clamping block 6 and the fire expansion sealing strip 5 are in contact, the spring 8 is in a compressed state. In this way, when a fire occurs, the fire expansion sealing strip 5 will actively expand to block the gap between the door and isolate the air circulation between the two spaces, effectively avoiding the damage to the human body caused by thick smoke, toxic gases and heat in the early stage of the fire and controlling the spread of the fire. By setting the surface of the fire door body 1 to be fixedly connected with a flame retardant layer 11, the material of the flame retardant layer 11 is a flame retardant board. In this way, the protective door has a flame retardant effect, which improves the fire door In order to improve the safety of the fire door, an impact-resistant layer 12 is fixedly connected to the surface of the flame-retardant layer 11. The material of the impact-resistant layer 12 is foam. The foam has a series of characteristics such as elasticity, light weight, rapid pressure-sensitive fixation, easy use, easy bending, ultra-thin volume, reliable performance, etc. A corrosion-resistant layer 13 is fixedly connected to the surface of the impact-resistant layer 12. The material of the corrosion-resistant layer 13 is glass fiber. This arrangement makes the fire door have good protective performance and is not easy to corrode. A metal layer 14 is fixedly connected to the surface of the corrosion-resistant layer 13. This arrangement makes the fire door more beautiful.

[0032] The following is a detailed description of the working principle of this flame retardant structure for fire doors.

[0033] like Figure 1-4 As shown, when the fire-proof expansion sealing strip 5 needs to be installed during use, the connecting ring 10 is pulled to move the connecting rod 7 fixedly connected to the connecting ring 10, and the clamping block 6 fixedly connected to the connecting rod 7 is moved. At this time, the spring 8 is squeezed into a compressed state. After the fire-proof expansion sealing strip 5 is installed in the installation groove 4, the connecting ring 10 is released, and the spring 8 drives the clamping block 6 to reset, so that the clamping block 6 squeezes the fire-proof expansion sealing strip 5, so that the fire-proof expansion sealing strip 5 is fixed. When a fire occurs, the fire-proof expansion sealing strip 5 actively expands to block the gap in the door and isolate the air circulation between the two spaces, effectively avoiding the damage to the human body caused by thick smoke, toxic gases and heat in the early stage of the fire and controlling the spread of the fire.

Claims

1. A flame retardant structure for a fire door, comprising a fire door body (1), characterized in that: A handle (2) is fixedly connected to the front side of the fire door body (1); a door lock body (3) is fixedly connected to the fire door body (1); a mounting groove (4) is provided on one side of the fire door body (1); a fireproof expansion sealing strip (5) is arranged in the mounting groove (4); a clamping block (6) is slidably connected in the mounting groove (4); a connecting rod (7) is fixedly connected to one side of the clamping block (6); the connecting rod (7) passes through one side of the fire door body (1); the connecting rod (7) and one side of the fire door body (1) are slidably connected; a spring (8) is fixedly sleeved on the connecting rod (7); one end of the spring (8) is fixedly connected to the clamping block (6); the other end of the spring (8) is fixedly connected to one side of the mounting groove (4); the end of the connecting rod (7) away from the clamping block (6) is fixedly connected to a connecting block (9); the end of the connecting block (9) away from the connecting rod (7) is fixedly connected to a connecting ring (10).

2. The flame retardant structure for fire doors according to claim 1, characterized in that: The clamping block (6) is in contact with the fireproof expansion sealing strip (5), and when the clamping block (6) and the fireproof expansion sealing strip (5) are in contact, the spring (8) is in a compressed state.

3. The flame retardant structure for fire doors according to claim 1, characterized in that: A flame retardant layer (11) is fixedly connected to the surface of the fire door body (1), and the material of the flame retardant layer (11) is a flame retardant board.

4. The flame retardant structure for fire doors according to claim 3, characterized in that: An impact-resistant layer (12) is fixedly connected to the surface of the flame-retardant layer (11), and the material of the impact-resistant layer (12) is foam.

5. The flame retardant structure for fire doors according to claim 4, characterized in that: A corrosion-resistant layer (13) is fixedly connected to the surface of the impact-resistant layer (12), and the corrosion-resistant layer (13) is made of glass fiber.

6. The flame retardant structure for fire doors according to claim 5, characterized in that: A metal layer (14) is fixedly connected to the surface of the corrosion-resistant layer (13).

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