CN215169479U

CN215169479U - Smoke-proof fire-proof door

Info

Publication number: CN215169479U
Application number: CN202120553163.8U
Authority: CN
Inventors: 钟平
Original assignee: Zhejiang Zhenyuan Security Technology Co ltd
Current assignee: Zhejiang Zhenyuan Security Technology Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-12-14
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses a smoke protection type prevents fire door, including the door body (1) and door frame (2), the door body (1) constitute by steel shell body (11), flame retardant coating (12) and insulating layer (13) set gradually in steel shell body (11) from the front to the back, door body (1) and door frame (2) one side are connected through fire prevention hinge (3), door frame (2) are provided with fire prevention thermal expansion strip (4) at the fitting surface with the door body (1), heating wire (7) are installed to fire prevention thermal expansion strip (4) lower part, heating wire (7) series connection smoke transducer (6), smoke transducer (6) are installed on door frame (2). It realizes preventing the flue gas that the conflagration produced from getting into indoorly through setting up fire prevention thermal expansion strip at door frame and door body combination department, further ensures the smoke protection effect through setting up smoke transducer. Its structure is retrencied, and the stable performance has improved the security performance of preventing fire door.

Description

Smoke-proof fire-proof door

Technical Field

The utility model relates to a prevent fire door, especially a smoke protection type prevents fire door.

Background

During a fire, most casualties are caused by dense smoke generated by the fire, the smoke of the fire is mainly subjected to high-temperature thermal damage, poisoning and suffocation are caused, the sight is influenced, the smoke becomes a factor for fire development and spread, terrorism and other hazards, and therefore, how to isolate the generated smoke is very important during the fire. The fireproof door is a door which can meet the requirements of fire resistance stability, integrity and heat insulation within a certain time. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof subareas, evacuation staircases, vertical shafts and the like. The fireproof door has the functions of preventing the fire from spreading and the smoke from diffusing besides the function of a common door, can prevent the fire from spreading within a certain time, ensures the evacuation of people, but the protection effect of the fireproof door on the market on the smoke is still not perfect, and the smoke can enter a room through a door gap to cause potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire door is prevented to smoke protection type. It can prevent that the flue gas that the conflagration produced from getting into indoor, the security of guarantee personnel.

The utility model discloses a technical scheme: the smoke-proof fireproof door comprises a door body and a door frame, wherein the door body consists of a steel outer shell, a fireproof layer and a heat insulation layer, the fireproof layer and the heat insulation layer are sequentially arranged in the steel outer shell from front to back, one side of the door body and one side of the door frame are connected through a fireproof hinge, the door frame is provided with a fireproof thermal expansion strip on a matching surface with the door body, a heating wire is arranged on the lower part of the fireproof thermal expansion strip, the heating wire is connected with a smoke sensor in series, and the smoke sensor is arranged on the door frame.

In the smoke-proof fireproof door, the matching surface of the door frame and the door body is in a step shape.

Among the aforementioned smoke protection type prevents fire door, the door frame includes the door frame shell body, is provided with interior sandwich layer in the door frame shell body, and the door frame shell body is the steel shell, and interior sandwich layer adopts pearlite fire resistive material, and the flame retardant coating in the door body adopts the pearlite PLASTIC LAMINATED, and the insulating layer adopts fire-resistant thermal-insulated cotton.

In the smoke-proof fireproof door, the inner side of the door body is provided with the decorative plate, and the size of the decorative plate is consistent with that of the inner side of the door frame.

Compared with the prior art, it can realize when meetting the conflagration, and the thermal expansion strip that prevents fires is heated the inflation for the door body and door frame combine closely, and the flue gas can't get into indoorly, guarantee personnel's safety of living, if produce a large amount of flue gases when meetting the conflagration, under the not many circumstances that the temperature rises, photoelectric switch sensor can control heating wire temperature rise and make the thermal expansion strip that prevents fires inflation, separation flue gas, the utility model discloses the structure is retrencied, stable performance, difficult trouble.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention.

The labels in the figures are: the door comprises a door body 1, a door frame 2, a steel outer shell 11, a fire-resistant layer 12, a thermal insulation layer 13, an inner core layer 21, a door frame outer shell 22, a fireproof hinge 3, a fireproof thermal expansion strip 4, a decorative plate 5, a photoelectric switch sensor 6 and an electric heating wire 7.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Example 1. A smoke-proof fireproof door is shown in figure 1-2, and comprises a door body 1 and a door frame 2, wherein the door body 1 consists of a steel outer shell 11, a fireproof layer 12 and a heat insulation layer 13, the fireproof layer 12 and the heat insulation layer 13 are sequentially arranged in the steel outer shell 11 from front to back, the steel outer shell 11 plays a role in fixing and protecting the fireproof layer 12 and the heat insulation layer 13, the fireproof layer 12 is made of a burning-resistant material, the heat insulation layer 13 is made of a high-temperature-resistant heat insulation material, the fireproof door has better safety performance due to the existence of the fireproof layer 12 and the heat insulation layer 13, heat transfer can be reduced as much as possible, one sides of the door body 1 and the door frame 2 are connected through a fireproof hinge 3, the door frame 2 is provided with a fireproof thermal expansion strip 4 on a matching surface with the door body 1, the fireproof thermal expansion strip 4 is heated to expand to tightly seal a gap between the door body 1 and the door frame 2 so that smoke can not enter, when no fire exists, the fireproof thermal expansion strip 4 is in a contraction state, the opening and closing of the door cannot be influenced, abrasion cannot be caused, and the tightness of the fireproof thermal expansion strip 4 cannot be influenced. Heating wire 7 is installed to 4 lower parts of fire prevention thermal expansion strip, and heating wire 7 establishes ties smoke transducer 6, and smoke transducer 6 installs on door frame 2, and smoke transducer 6 is when preventing that the conflagration from taking place, and the flue gas speed of stretching is faster than flame diffusion rate, and fire prevention thermal expansion strip does not in time act on, influences personnel's safety.

The matching surface of the door frame 2 and the door body 1, which is far away from the fireproof hinge 3, is in a step shape.

The door frame 2 include the door frame shell body 22, be provided with interior sandwich layer 21 in the door frame shell body 22, the door frame shell body 22 is the steel shell, interior sandwich layer 21 adopts the perlite fire prevention material, flame retardant coating 12 in the door body 1 adopts the perlite PLASTIC LAMINATED, insulating layer 13 adopts fire-resistant thermal-insulated cotton.

The inner side of the door body 1 is provided with a decorative plate 5, and the size of the decorative plate 5 is consistent with that of the inner side of the door frame 2.

The utility model is composed of a door body 1 and a door frame 2. The contact surface of the door frame 2 and the door body 1, which is far away from the fireproof hinge 3, is in a step shape, the door frame 2 is provided with fireproof thermal expansion strips 4 on the matching surface with the door body 1, the step shape can increase the service area of the fireproof thermal expansion strips 4, the step shape is favorable for theft prevention, the fireproof thermal expansion strips 4 can expand when being heated, smoke is prevented from entering a room, and the fireproof thermal expansion strips 4 are made of expandable graphite. And also can meet the flue gas very big and the not violent condition of intensity of a fire when the conflagration takes place, when the fire prevention thermal expansion strip 4 takes place to act on under this kind of condition, probably the flue gas has got into indoorly, causes very big harm to the personnel, so the utility model discloses install heating wire 7 in fire prevention thermal expansion strip 4 lower parts, smoke transducer 6 is connected to heating wire 7, smoke transducer 6 installs on door frame 2, smoke transducer 6 connects, smoke transducer 6 can detect the flue gas, when detecting the flue gas, smoke transducer 6 is closed, forms closed loop, and heating wire 7 begins to generate heat, the inflation of fire prevention thermal expansion strip 4, the gap between the closed door body 1 and the door frame 2 prevents the entering of flue gas. The door body 1 comprises steel shell body 11, flame retardant coating 12 and insulating layer 13, and flame retardant coating 12 adopts the pearlite PLASTIC LAMINATED, and insulating layer 13 adopts fire-resistant thermal-insulated cotton, can reduce the heat and get into indoor and the quality of door can not be very big, influences the life of door, and door frame 2 comprises interior sandwich layer 21 and door frame shell body 22, and door frame shell body 22 is the steel shell, and interior sandwich layer 21 adopts pearlite fire-resistant material, and such fire door is safer. The decorative plate 5 is arranged on the inner side of the door body 1, and the fireproof door is more attractive due to the arrangement of the decorative plate 5, so that the attractiveness of the fireproof door is not lost under the condition of high safety.

Claims

1. Fire door is prevented to smoke protection type, its characterized in that: including the door body (1) and door frame (2), the door body (1) constitute by steel shell body (11), flame retardant coating (12) and insulating layer (13) set gradually in steel shell body (11) from the front to the back, door body (1) and door frame (2) one side are connected through fire prevention hinge (3), door frame (2) are provided with fire prevention thermal expansion strip (4) on the fitting surface with door body (1), heating wire (7) are installed to fire prevention thermal expansion strip (4) lower part, smoke transducer (6) are established ties in heating wire (7), smoke transducer (6) are installed on door frame (2).

2. The smoke resistant fire rated door of claim 1, wherein: the matching surface of the door frame (2) and the door body (1) far away from the fireproof hinge (3) is in a step shape.

3. The smoke resistant fire rated door of claim 1, wherein: the door frame (2) include door frame shell body (22), be provided with interior sandwich layer (21) in the door frame shell body (22), door frame shell body (22) are the steel shell, interior sandwich layer (21) adopt the perlite fire prevention material, flame retardant coating (12) in the door body (1) adopt the perlite PLASTIC LAMINATED, insulating layer (13) adopt fire-resistant thermal-insulated cotton.

4. The smoke resistant fire rated door of claim 1, wherein: the inner side of the door body (1) is provided with a decorative plate (5), and the size of the decorative plate (5) is consistent with that of the inner side of the door frame (2).