Steel fireproof door

Abstract

The utility model discloses a steel fireproof door in the technical field of fireproof doors, which comprises a door frame, a door body is arranged in the door frame, a door handle is arranged on the left side of the front of the door body, a fixing mechanism is arranged on the left side of the front of the door frame, a connecting mechanism is arranged on the left side of the front of the door body, and a control mechanism is arranged on the top of the fixing mechanism. Two sets of hinges are arranged on the right side of the front portion of the door body, the door body is rotationally connected with a door frame through the two sets of hinges, the door body comprises two sets of steel plates, gypsum boards are arranged on the sides, close to each other, of the two sets of steel plates, fireproof plates are arranged on the sides, close to each other, of the two sets of gypsum boards, and a flame-retardant plate is arranged between the two sets of fireproof plates. The fireproof door locking device solves the problems that when a traditional lock hole is used for locking a fireproof door, a person needs to use a key to open the fireproof door in the case of a fire disaster, time is wasted, the evacuation efficiency of the person is reduced, and applicability is limited.

Description

Technical Field

[0001] This utility model relates to the technical field of fire doors, and in particular to a steel fire door. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation for a certain period of time. They are installed in fire compartments, evacuation stairwells and vertical shafts. They are fire-resistant partitions with a certain degree of fire resistance. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. They can stop the spread of fire for a certain period of time and ensure the evacuation of personnel.

[0003] For example, the steel fire door with announcement number CN221096336U includes a door frame. The inner side of the door frame is equipped with a fire door assembly and an alarm assembly. The fire door assembly and alarm assembly are mutually abutting. The fire door assembly, with its gypsum board and fire-resistant steel plate, provides fire and high-temperature protection from both sides. Sound insulation material reduces noise, and flame-retardant particleboard suppresses fire and prevents its spread. The door panel edges are secured with edging steel plates. The first and second outer protective plates also have fire resistance, significantly improving the fire door's safety. The alarm assembly, using a controller and smoke sensor, detects smoke and triggers an audible alarm. The installation slot and inspection cover allow for regular maintenance of the controller to prevent damage and facilitate repairs.

[0004] However, the above-mentioned device uses a traditional keyhole to lock the fire door. In the event of a fire, people need to use a key to open the fire door, which wastes time and reduces the efficiency of personnel evacuation, thus limiting its applicability. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a steel fire door that can solve the problem that the above-mentioned devices use traditional keyholes to lock the fire door, and in the event of a fire, people need to use a key to open the fire door, which wastes time, reduces the efficiency of personnel evacuation, and has limited applicability.

[0007] To solve the above-mentioned technical problems, this utility model provides a steel fire door, which adopts the following technical solution: it includes a door frame, a door body is provided inside the door frame, a door handle is provided on the front left side of the door body, a fixing mechanism is provided on the front left side of the door frame, a connecting mechanism is provided on the front left side of the door body, and a control mechanism is provided on the top of the fixing mechanism.

[0008] Optionally, the front right side of the door body is provided with two hinges, and the door body is rotatably connected to the door frame through the two hinges.

[0009] By adopting the above technical solution, the fire door can be rotated.

[0010] Optionally, the door body includes two sets of steel plates, each set of steel plates is provided with a gypsum board on the side close to each other, each set of gypsum boards is provided with a fireproof board on the side close to each other, and a flame-retardant board is provided between the two sets of fireproof boards.

[0011] By adopting the above technical solutions, the spread of the fire was prevented.

[0012] Optionally, the fixing mechanism includes a fixing plate, the left side of which is disposed on the door frame, and a fixing groove is provided at the bottom right side of the fixing plate; the connecting mechanism includes a connecting plate, the left side of which is disposed on the door body; and the control mechanism includes a control rod.

[0013] By adopting the above technical solution, a fixed mechanism is set up.

[0014] Optionally, a connecting side plate is provided on the front right side of the connecting plate, and a connecting rod is provided on the left side of the connecting side plate. The connecting rod is inserted into the fixing groove, and a connecting hole is provided on the connecting rod. A sliding rod groove that matches the control rod is provided on the top of the fixing plate.

[0015] The door is fixed by adopting the above technical solution.

[0016] Optionally, the control rod is inserted into the slide groove, a spring plate is sleeved on the outside of the control rod, a control spring is provided on the top of the spring plate, the control spring is sleeved on the outside of the control rod, a spring groove is provided in the fixing plate, the spring plate is slidably connected in the spring groove, and a triangular plate is provided at the bottom of the control rod, the triangular plate is inserted into the connecting hole.

[0017] By adopting the above technical solution, the connecting rod is limited and fixed.

[0018] In summary, this utility model has at least one of the following beneficial effects: by setting a control mechanism to limit and fix the connecting mechanism, in the event of a fire, only the control rod needs to be pulled upwards to pull the door handle to open the fire door, saving time, increasing the evacuation efficiency of personnel, and making it more applicable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the door body of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the fixing mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection mechanism of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Door frame; 2. Door body; 201. Steel plate; 202. Gypsum board; 203. Fireproof board; 204. Flame-retardant board; 3. Hinge; 4. Door handle; 5. Fixing mechanism; 501. Fixing plate; 502. Fixing groove; 503. Slide bar groove; 504. Spring groove; 6. Connecting mechanism; 601. Connecting plate; 602. Connecting side plate; 603. Connecting rod; 604. Connecting hole; 7. Control mechanism; 701. Control rod; 702. Spring plate; 703. Control spring; 704. Triangle plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0026] Example 1, refer to Figure 1 In this embodiment, in order to solve the problem that the above-mentioned device uses a traditional keyhole to lock the fire door, and in the event of a fire, personnel need to use a key to open the fire door, which wastes time, reduces the evacuation efficiency, and has limited applicability, this utility model discloses a steel fire door, including a door frame 1, a door body 2 inside the door frame 1, a door handle 4 on the front left side of the door body 2, a fixing mechanism 5 on the front left side of the door frame 1, a connecting mechanism 6 on the front left side of the door body 2, and a control mechanism 7 on the top of the fixing mechanism 5.

[0027] Based on the above features, the working principle of this embodiment is as follows: the fire door is installed in a suitable position through the door frame 1, and the door body 2 prevents the fire from spreading in the event of a fire. Pulling the control mechanism 7 can cancel the fixation of the connecting mechanism 6, and pulling the door handle 4 can rotate the door body 2 to open the fire door, which is more convenient and faster.

[0028] Example 2, refer to Figure 1-4 In this embodiment, to address the problem that the aforementioned device uses a traditional keyhole to lock the fire door, requiring a key to open it during a fire, wasting time and reducing evacuation efficiency, and having limited applicability, based on the same concept as the first embodiment, this steel fire door also includes two hinges 3 on the front right side of the door body 2. The door body 2 is rotatably connected to the door frame 1 via the two hinges 3. The door body 2 includes two sets of steel plates 201, with gypsum board 202 on the side of each set of steel plates 201 that is close to each other, and fireproof board 203 on the side of each set of gypsum board 202 that is close to each other. A flame-retardant board 204 is provided between the two sets of fireproof boards 203. The fixing mechanism 5 includes a fixing plate 501, with the left side of the fixing plate 501 mounted on the door frame 1, and a fixing groove 502 opened at the bottom right side of the fixing plate 501. The connecting mechanism 6 includes a connecting plate 60. 1. The left side of the connecting plate 601 is set on the door body 2. The control mechanism 7 includes a control rod 701. A connecting side plate 602 is provided on the front right side of the connecting plate 601. A connecting rod 603 is provided on the left side of the connecting side plate 602. The connecting rod 603 is inserted into the fixing groove 502. A connecting hole 604 is opened on the connecting rod 603. A sliding rod groove 503 adapted to the control rod 701 is opened on the top of the fixing plate 501. The control rod 701 is inserted into the sliding rod groove 503. A spring plate 702 is sleeved on the outside of the control rod 701. A control spring 703 is provided on the top of the spring plate 702. The control spring 703 is sleeved on the outside of the control rod 701. A spring groove 504 is opened in the fixing plate 501. The spring plate 702 is slidably connected in the spring groove 504. A triangular plate 704 is provided at the bottom of the control rod 701. The triangular plate 704 is inserted into the connecting hole 604.

[0029] Based on the above features, the working principle of this embodiment is as follows: Two sets of fireproof boards 203 cooperate with two sets of gypsum boards 202 to provide fireproof and high-temperature protection from both sides. Pulling the control rod 701 upward causes the spring plate 702 and the triangular plate 704 to move upward. While the spring plate 702 compresses the control spring 703, the triangular plate 704 moves from the connecting hole 604 into the slide bar groove 503, stopping the limiting of the connecting rod 603. Pulling the door handle 4 causes the door body 2 to rotate, thus opening the fire door. When the connecting rod 603 moves out of the fixing groove 502, the control rod 701 is released. The spring plate 702 moves downward under the elastic force of the control spring 703, causing the control rod 702 to move downward. 01 moves downwards, and the control lever 701 drives the triangular plate 704 to move into the designated slot 502, closing the door 2. The door 2 drives the connecting rod 603 to insert into the fixed slot 502. The connecting rod 603 pushes the triangular plate 704 upwards, and the triangular plate 704 drives the control lever 701 upwards. The control lever 701 drives the spring plate 702 upwards, squeezing the control spring 703. When the triangular plate 704 contacts the connecting hole 604, the spring plate 702, under the action of the elastic force of the control spring 703, drives the control lever 701 downwards. The control lever 701 drives the triangular plate 704 downwards into the connecting hole 604, limiting and fixing the connecting rod 603.

[0030] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A steel fire door, comprising a door frame (1), characterized in that: The door frame (1) is provided with a door body (2), the door body (2) is provided with a door handle (4) on the front left side, the door frame (1) is provided with a fixing mechanism (5) on the front left side, the door body (2) is provided with a connecting mechanism (6) on the front left side, and the fixing mechanism (5) is provided with a control mechanism (7) on top.

2. A steel fire door according to claim 1, characterized in that: Two hinges (3) are provided on the front right side of the door body (2), and the door body (2) is rotatably connected to the door frame (1) through the two hinges (3).

3. A steel fire door according to claim 1, characterized in that: The door body (2) includes two sets of steel plates (201), and gypsum board (202) is provided on the side of the two sets of steel plates (201) that are close to each other. Fireproof board (203) is provided on the side of the two sets of gypsum board (202) that are close to each other. Flame-retardant board (204) is provided between the two sets of fireproof boards (203).

4. A steel fire door according to claim 1, characterized in that: The fixing mechanism (5) includes a fixing plate (501), the left side of which is disposed on the door frame (1), and a fixing groove (502) is provided at the bottom right side of the fixing plate (501). The connecting mechanism (6) includes a connecting plate (601), the left side of which is disposed on the door body (2). The control mechanism (7) includes a control rod (701).

5. A steel fire door according to claim 4, characterized in that: The connecting plate (601) has a connecting side plate (602) on the front right side and a connecting rod (603) on the left side of the connecting side plate (602). The connecting rod (603) is inserted into the fixing groove (502) and a connecting hole (604) is opened on the connecting rod (603). The top of the fixing plate (501) has a sliding rod groove (503) that is compatible with the control rod (701).

6. A steel fire door according to claim 5, characterized in that: The control rod (701) is inserted into the slide groove (503). A spring plate (702) is sleeved on the outside of the control rod (701). A control spring (703) is provided on the top of the spring plate (702). The control spring (703) is sleeved on the outside of the control rod (701). A spring groove (504) is provided in the fixing plate (501). The spring plate (702) is slidably connected in the spring groove (504). A triangular plate (704) is provided at the bottom of the control rod (701). The triangular plate (704) is inserted into the connecting hole (604).

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