Induction heat insulation steel fireproof door

Abstract

The utility model belongs to the technical field of fireproof doors, and particularly relates to an induction heat insulation steel fireproof door which comprises a door pocket, and a plurality of sliding grooves are formed in the outer side wall of the door pocket. A door pocket is matched with a fireproof material to block fire, the temperature is gradually increased, a thermosensitive spring is heated to extend, a push plate is pushed to move upwards, a rotating shaft is pushed under driving of a connecting rod, the rotating shaft drives a rotating disc to rotate, an arc-shaped groove can drive a plurality of moving blocks to move through a sliding rod, the moving blocks push a sliding plate through a push rod, and the sliding plate slides out of a sliding groove. When the fireproof door needs to pass through, the rotating shaft is rotated through the rotating rod to extrude the thermosensitive spring, the sealing strip and the sliding plate are driven to retract into the door pocket, the fireproof door is convenient to open for escape, and the thermosensitive spring naturally shrinks at normal temperature, so that the fireproof door can pass through the fireproof door. On the premise that fire prevention and smoke prevention are not affected, the sealing strip is not prone to being abraded due to treading or friction.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to an induction heat-insulating steel fire door. Background Technique

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. Generally, the outer layer is made of metal, and the inner layer can be filled with lightweight heat-insulating materials. It is mainly installed at positions such as fire compartments, evacuation stairwells, and vertical shafts. It is a fire separation with a certain fire resistance, used to isolate the flames and smoke generated by a fire. Existing fire doors generally improve the airtightness of the fire door by fixedly installing a sealing strip at the bottom of the door frame or the door panel, so as to improve the blocking effect of the fire door and prevent smoke from passing through the fire door through the gap between the door panel and the door frame during a fire.

[0003] After the sealing strips of some existing fire doors are installed, due to the walking of people and the transportation of goods, they are constantly trampled and worn, resulting in a decline in the sealing effect of the sealing strips. When opening and closing the door, there will still be friction between the sealing strip and the door frame. The sealing strip is still prone to wear after long-term use, and the friction between the door frame and the sealing strip makes it difficult to open and close the fire door, which is not conducive to the use of the fire door.

[0004] Therefore, an induction heat-insulating steel fire door is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an induction heat-insulating steel fire door to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An induction heat-insulating steel fire door, including a door pocket, a plurality of sliding grooves are opened on the outer side wall of the door pocket, a sliding plate is slidably connected to the inner side wall of the sliding groove, a sealing strip is adhered to the outer side wall of the sliding plate, a round box is fixedly connected to the inner side wall of the door pocket, a rotating shaft is rotatably connected to the inner side wall of the round box, a turntable is fixedly connected to the rear end of the rotating shaft, a uniformly distributed arc-shaped groove is opened on the inner side wall of the turntable, uniformly distributed moving blocks are slidably connected to the inner side wall of the round box, a sliding rod is fixedly connected to the rear side wall of the moving block, and the outer side wall of the sliding rod is slidably connected to the inner side wall of the arc-shaped groove. The front side of the inner side wall of the door pocket is fixedly connected with an automatic box, a push plate is slidably connected to the inner side wall of the automatic box, a heat-sensitive spring is fixedly connected between the lower surface of the push plate and the inner side wall of the automatic box, a connecting rod is hinged between the upper surface of the push plate and the lower surface of the rotating shaft, and a push rod is fixedly connected between the side of the sliding plate away from the sealing strip and the outer side wall of the moving block.

[0007] As a further preference of this technical solution: A door frame is provided on the outer side wall of the door pocket, and a hinge is fixedly connected between the outer side wall of the door frame and the outer side wall of the door pocket.

[0008] As a further preference of this technical solution: A clamping groove is provided on the inner side wall of the door frame.

[0009] As a further preference of this technical solution: A handle is installed on the front surface of the door pocket.

[0010] As a further preference of this technical solution: A rotating rod is rotatably connected to the front surface of the door pocket, and the rear end of the rotating rod is fixedly connected to the front surface of the rotating shaft.

[0011] As a further preference of this technical solution: Uniformly distributed support frames are fixedly connected to the inner side wall of the door pocket, and a fireproof material is provided on the inner side wall of the support frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] The present utility model blocks the fire through the cooperation of the door pocket and the fireproof material. As the temperature gradually rises, the heat-sensitive spring is heated and elongates, pushing the push plate upward. Driven by the connecting rod, the rotating shaft is pushed, and the rotating shaft drives the turntable to rotate. The arc-shaped groove can drive a plurality of moving blocks to move through the sliding rod. The moving block pushes the sliding plate through the push rod, and the sliding plate slides out of the sliding groove, so that the sealing strip moves out of the door pocket. The sealing strip expands when heated. Blocked by the sliding plate and the sealing strip, the smoke and dust are blocked. When passing through the fire door, the rotating shaft is rotated by the rotating rod to squeeze the heat-sensitive spring, driving the sealing strip and the sliding plate to retract into the door pocket, which is convenient for opening to escape. At normal temperature, the heat-sensitive spring naturally contracts, causing the sliding plate to drive the sealing strip to retract into the sliding groove. Without affecting fire and smoke prevention, the sealing strip is not easily worn due to trampling or friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural diagram of the present utility model;

[0015] Figure 2 It is a structural diagram of the door pocket and the sliding groove in the present utility model;

[0016] Figure 3 It is a structural diagram of the sliding plate and the sealing strip in the present utility model;

[0017] Figure 4 It is a structural diagram of the push plate, the heat-sensitive spring and the connecting rod in the present utility model;

[0018] Figure 5 It is a structural diagram of the turntable, the arc-shaped groove and the moving block in the present utility model;

[0019] Figure 6This is a schematic diagram of the support frame and fireproof material in the present utility model;

[0020] Figure 7 This is a schematic diagram of the door frame, hinge and card slot in the present utility model.

[0021] In the figure: 1, door pocket; 2, chute; 3, slide plate; 4, sealing strip; 5, round box; 6, rotating shaft; 7, turntable; 8, arc groove; 9, moving block; 10, slide bar; 11, automatic box; 12, push plate; 13, thermal spring; 14, connecting rod; 15, push rod; 16, door frame; 17, hinge; 18, card slot; 19, handle; 20, rotating rod; 21, support frame; 22, fireproof material. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation to the present application. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0024] Please refer to Figures 1-7, the present utility model provides a technical solution: an induction heat-insulating steel fire door, including a door pocket 1. A plurality of sliding grooves 2 are formed on the outer side wall of the door pocket 1. A sliding plate 3 is slidably connected to the inner side wall of the sliding groove 2. A sealing strip 4 is adhered to the outer side wall of the sliding plate 3. A round box 5 is fixedly connected to the inner side wall of the door pocket 1. A rotating shaft 6 is rotatably connected to the inner side wall of the round box 5. A turntable 7 is fixedly connected to the rear end of the rotating shaft 6. Arc-shaped grooves 8 are evenly distributed on the inner side wall of the turntable 7. Uniformly distributed moving blocks 9 are slidably connected to the inner side wall of the round box 5. A sliding rod 10 is fixedly connected to the rear side wall of the moving block 9. The outer side wall of the sliding rod 10 is slidably connected to the inner side wall of the arc-shaped groove 8. An automatic box 11 is fixedly connected to the front side of the inner side wall of the door pocket 1. A push plate 12 is slidably connected to the inner side wall of the automatic box 11. A thermal-sensitive spring 13 is fixedly connected between the lower surface of the push plate 12 and the inner side wall of the automatic box 11. A connecting rod 14 is hinged between the upper surface of the push plate 12 and the lower surface of the rotating shaft 6. A push rod 15 is fixedly connected between the side of the sliding plate 3 away from the sealing strip 4 and the outer side wall of the moving block 9; when a fire occurs, the door pocket 1 is a spray-coated galvanized steel plate, which blocks the fire through the door pocket 1. As the temperature gradually rises, the thermal-sensitive spring 13 expands when heated, pushing the push plate 12 to move upward. Driven by the connecting rod 14, the rotating shaft 6 is pushed. The rotating shaft 6 drives the turntable 7 to rotate. The arc-shaped groove 8 can drive a plurality of moving blocks 9 to move through the sliding rod 10. The moving block 9 pushes the sliding plate 3 through the push rod 15. The sliding plate 3 slides out of the sliding groove 2, so that the sealing strip 4 moves out of the door pocket 1. The sealing strip 4 expands when heated. Blocked by the sliding plate 3 and the sealing strip 4, the smoke and dust are blocked. When people need to pass through the fire door, rotate the rotating shaft 6 to squeeze the thermal-sensitive spring 13, driving the expanded sealing strip 4 and the sliding plate 3 to retract into the door pocket 1, which is convenient for opening and escaping. At normal temperature, the thermal-sensitive spring 13 naturally contracts, causing the sliding plate 3 to drive the sealing strip 4 to retract into the sliding groove 2. Without affecting fire and smoke prevention, the sealing strip 4 is not easily worn due to trampling or friction.

[0025] In this embodiment, specifically: a door frame 16 is provided on the outer side wall of the door pocket 1. A hinge 17 is fixedly connected between the outer side wall of the door frame 16 and the outer side wall of the door pocket 1; the door pocket 1 is installed through the door frame 16 and the hinge 17.

[0026] In this embodiment, specifically: a clamping groove 18 is formed on the inner side wall of the door frame 16; when the sealing strip 4 and the sliding plate 3 extend out, they are inserted into the clamping groove 18, improving the connection between the door frame 16 and the door pocket 1.

[0027] In this embodiment, specifically: a handle 19 is installed on the front surface of the door pocket 1; the handle 19 is convenient for opening or closing the handle 19.

[0028] In this embodiment, specifically: a rotating rod 20 is rotatably connected to the front surface of the door pocket 1. The rear end of the rotating rod 20 is fixedly connected to the front surface of the rotating shaft 6; the rotating rod 20 is convenient for the user to rotate the rotating shaft 6 from outside the door pocket 1.

[0029] In this embodiment, specifically, uniformly distributed support frames 21 are fixedly connected to the inner side wall of the door pocket 1, and a fireproof material 22 is provided on the inner side wall of the support frame 21; the fireproof performance of the door pocket 1 is improved by the fireproof material 22.

[0030] The working principle of the present utility model is as follows: When a fire occurs, the door pocket 1 is made of spray-coated galvanized steel plate. The door pocket 1 blocks the fire, and the fireproof and heat-insulating performance of the door pocket 1 is improved by the fireproof material 22. As the temperature gradually rises, the thermal-sensitive spring 13 expands when heated and pushes the push plate 12 to move upward. Driven by the connecting rod 14, the push plate 12 pushes the rotating shaft 6, and the rotating shaft 6 drives the turntable 7 to rotate. The arc-shaped groove 8 can drive a plurality of moving blocks 9 to move through the sliding rod 10. The moving block 9 pushes the sliding plate 3 through the push rod 15, and the sliding plate 3 slides out of the sliding groove 2, so that the sealing strip 4 moves out of the door pocket 1. The sealing strip 4 expands when heated. Blocked by the sliding plate 3 and the sealing strip 4, the smoke and dust are blocked. When people need to pass through the fire door, the rotating shaft 6 is rotated by the rotating rod 20 to squeeze the thermal-sensitive spring 13, driving the expanded sealing strip 4 and the sliding plate 3 to retract into the door pocket 1, which is convenient for opening and escaping. At normal temperature, the thermal-sensitive spring 13 naturally contracts, causing the sliding plate 3 to drive the sealing strip 4 to retract into the sliding groove 2. Without affecting fire and smoke prevention, the sealing strip 4 is not easily worn due to trampling or friction.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An induction heat-insulating steel fire door, comprising a door frame (1), characterized in that: The outer wall of the door cover (1) is provided with a plurality of slide grooves (2), the inner wall of the slide groove (2) is slidably connected with a slide plate (3), the outer wall of the slide plate (3) is bonded with a sealing strip (4), the inner wall of the door cover (1) is fixedly connected with a round box (5), the inner wall of the round box (5) is rotatably connected with a rotating shaft (6), the rear end of the rotating shaft (6) is fixedly connected with a rotating disk (7), the inner wall of the rotating disk (7) is provided with evenly distributed arc grooves (8), the inner wall of the round box (5) is slidably connected with evenly distributed moving blocks (9), the rear wall of the moving block (9) is fixedly connected with a sliding rod (10 ), the outer wall of the slide rod (10) is slidably connected to the inner wall of the arc groove (8), the front side of the inner wall of the door frame (1) is fixedly connected to an automatic box (11), the inner wall of the automatic box (11) is slidably connected to a push plate (12), a thermal spring (13) is fixedly connected between the lower surface of the push plate (12) and the inner wall of the automatic box (11), a connecting rod (14) is hinged between the upper surface of the push plate (12) and the lower surface of the rotating shaft (6), and a push rod (15) is fixedly connected between the side of the slide plate (3) away from the sealing strip (4) and the outer wall of the moving block (9).

2. The induction heat-insulating steel fire door according to claim 1, characterized in that: The outer side wall of the door cover (1) is provided with a door frame (16), and a hinge (17) is fixedly connected between the outer side wall of the door frame (16) and the outer side wall of the door cover (1).

3. The induction heat-insulating steel fire door according to claim 2, characterized in that: The inner side wall of the door frame (16) is provided with a clamping groove (18).

4. The induction heat-insulating steel fire door according to claim 1, characterized in that: A handle (19) is installed on the front surface of the door cover (1).

5. The induction heat-insulating steel fire door according to claim 1, characterized in that: The front surface of the door cover (1) is rotatably connected to a rotary rod (20), and the rear end of the rotary rod (20) is fixedly connected to the front surface of the rotating shaft (6).

6. The induction heat-insulating steel fire door according to claim 1, characterized in that: The inner side wall of the door frame (1) is fixedly connected to a uniformly distributed support frame (21), and the inner side wall of the support frame (21) is provided with a fireproof material (22).

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