Rail door

Abstract

The utility model provides a track door, which relates to the technical field of tracks and comprises a door frame and a door plate. One side of the door plate is hinged to the door frame, the door plate comprises two outer plates and an inner reinforcing plate, the inner reinforcing plate is arranged between the two outer plates, and a heat insulation layer and a flame-retardant layer are sequentially arranged on the side face of the inner reinforcing plate in the direction towards the outer plates; a plurality of reinforcing rods are fixedly arranged on the two side faces of the inner reinforcing plate respectively, a connecting rod is arranged between every two adjacent reinforcing rods on the same side, the reinforcing rods sequentially penetrate through the heat insulation layer and the flame retardant layer and are fixedly connected with the outer plate, and the reinforcing rods on the two sides of the inner reinforcing plate are arranged in a staggered mode. The problems that a door core structure is integrated, heat transfer is fast when a fire breaks out, and fireproof performance is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tracks, in particular to a track door. Background Art

[0002] With the development of my country's national strength and the continuous improvement of the economy, many cities in my country now have subways. In order to improve the safety of the subway, protective doors are needed. A protective door is a door that can resist various shock waves or collisions of heavy objects, and is mainly composed of a door frame and a frame. For example, the existing patent with application number CN201921228318.X discloses a fireproof and smokeproof armored safety door, including a door frame, an outer door panel, an outer door panel edging arranged on the left and right sides of the outer door panel, an inner door panel, and a wooden door core assembly arranged between the outer door panel and the inner door panel. There are gaps on both sides of the door frame and the inner door panel, and a first seal is provided in the gap. The upper and lower ends of one side of the first seal are provided with a first sealing strip that abuts the inner door panel, and the lower end of the first seal is provided with a second seal. The safety door in this patent can effectively block the spread of smoke, but because its door core structure (skeleton) is integrated, heat transfer is faster in the event of a fire, and the fire protection performance is poor, which does not meet the fire protection requirements of the subway. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a track door, which solves the problem that the door core structure is integrated, heat transfer is fast in the event of fire, and fireproof performance is poor.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A track door, comprising: a door frame and a door panel;

[0006] One side of the door panel is hinged to the door frame, and the door panel includes two outer panels and an inner reinforcement panel, the inner reinforcement panel is arranged between the two outer panels, and the side surface of the inner reinforcement panel is provided with a heat insulation layer and a flame retardant layer in sequence along the direction toward the outer panels;

[0007] A number of reinforcing rods are fixedly provided on both sides of the inner reinforcing plate, and a connecting rod is provided between two adjacent reinforcing rods on the same side. The reinforcing rods pass through the thermal insulation layer and the flame retardant layer in sequence and are fixedly connected to the outer plate, and the several reinforcing rods on both sides of the inner reinforcing plate are staggered.

[0008] Preferably, it also includes a hinge, which includes a first fixed plate detachably connected to the door frame and a second fixed plate detachably connected to the door panel, the first fixed plate is long and narrow, the second fixed plate is hinged to the first fixed plate, and the hinge axis of the hinge between the second fixed plate and the first fixed plate is parallel to the length direction of the first fixed plate.

[0009] Preferably, four hinges are provided, and the four hinges are located on the same side of the door panel.

[0010] Preferably, a shutter is further provided, the shutter comprising a plurality of blades inclined in the same direction, a through opening is provided at the lower portion of the door panel, two shutters are provided, the two shutters are respectively provided at both ends of the through opening, and the blades on the two shutters are symmetrically arranged.

[0011] Preferably, a door handle is also provided on the door panel.

[0012] The utility model has the following beneficial effects:

[0013] The heat-insulating layer and the flame-retardant layer work together to prevent the rail door body from being burned in a short time, effectively extending the flame-retardant and heat-insulating time of the rail door body, buying more time for rescue and reducing risks.

[0014] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the door panel structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the hinge structure of the present utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the connection structure between the shutter and the door panel of the present invention.

[0019] In the above drawings: 1. Door frame; 2. Door panel; 21. Outer panel; 22. Through opening; 3. Inner reinforcing plate; 31. Reinforcing rod; 311. Connecting rod; 4. Insulation layer; 5. Flame retardant layer; 6. Hinge; 61. First fixing plate; 62. Second fixing plate; 7. Shutter; 8. Door handle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the technical solutions in the present invention are further described below with reference to the accompanying drawings and embodiments.

[0021] See also Figures 1 to 4As shown, a track door comprises: a door frame 1 and a door panel 2; one side of the door panel 2 is hinged on the door frame 1, and the door panel 2 comprises two outer panels 21 and an inner reinforcing panel 3, the inner reinforcing panel 3 is arranged between the two outer panels 21, and the side surfaces of the inner reinforcing panel 3 are provided with a heat insulation layer 4 and a flame retardant layer 5 in sequence along the direction toward the outer panels 21; a plurality of reinforcing rods 31 are fixedly provided on both side surfaces of the inner reinforcing panel 3, and a connecting rod 311 is provided between two adjacent reinforcing rods 31 on the same side, the reinforcing rods 31 pass through the heat insulation layer 4 and the flame retardant layer 5 in sequence and are fixedly connected to the outer panels 21, and the plurality of reinforcing rods 31 on both sides of the inner reinforcing panel 3 are staggered.

[0022] When installing the door body, the door frame 1 is connected to the wall through a fireproof seal. There are many types of fireproof seals, such as expansion bolts, fastening screws, rivets, etc. Preferably, expansion bolts are used as fireproof seals; in order to make the door body lighter, the door panel 2 is made of aluminum; the insulation layer 4 can be made of polyurethane foam board, and the flame retardant layer 5 can be composed of fireproof cotton. When a fire occurs, the flame retardant layer 5 can be used for fire prevention, and the insulation layer 4 can effectively isolate the high temperature heat generated by the fire. The insulation layer 4 and the flame retardant layer 5 work together to prevent the track door body from being burned in a short time, effectively extending the flame retardant insulation time of the track door body, buying more time for rescue, and reducing risks; and an inner reinforcement plate 3 is provided. The inner reinforcement plate 3 is fixedly connected to the two outer plates 21 through a reinforcement rod 31, which can reduce the weight of the fire door while ensuring anti-collision strength and effectively reducing costs, and a connecting rod 311 is provided between the two adjacent reinforcement rods 31 on the same side to increase stability.

[0023] Further, if Figure 1 and Figure 3 As shown, it also includes a hinge 6, which includes a first fixed plate 61 detachably connected to the door frame 1 and a second fixed plate 62 detachably connected to the door panel 2, the first fixed plate 61 is long and strip-shaped, the second fixed plate 62 is hinged to the first fixed plate 61, and the hinge axis of the second fixed plate 62 and the first fixed plate 61 is parallel to the length direction of the first fixed plate 61. Specifically, two protrusions are provided on the first fixing plate 61, and the second fixing plate 62 is hinged between the two protrusions. Several mounting holes are provided on the first fixing plate 61 on both sides of the second fixing plate 62 and on one end of the second fixing plate 62 away from the hinge axis where the second fixing plate 62 and the first fixing plate 61 are hinged, so that they can be fixed to the door frame 1 and the door panel 2 respectively by screws. In order to ensure that the door panel 2 and the door frame 1 are in the same horizontal plane when the door is closed, the second fixing plate 62 is also provided with a bending portion so that the bottom of the part of the second fixing plate 62 with the mounting hole can be in the same horizontal plane with the bottom of the first fixing plate 61, so that the door panel 2 is hinged to the door frame 1 through the hinge 6.

[0024] Further, if Figure 1 As shown, in order to improve reliability and increase the connection strength between the door panel 2 and the door frame 1 , four hinges 6 are provided, and the four hinges 6 are located on the same side of the door panel 2 .

[0025] Further, if Figure 1 and Figure 4 As shown, a shutter 7 is further provided, comprising a plurality of blades inclined in the same direction. A through opening 22 is provided at the lower portion of the door panel 2. Two shutters 7 are provided, one at each end of the through opening 22, and the blades of the two shutters 7 are symmetrically arranged. The shutters 7 are used for ventilation, and providing two shutters 7 can improve the fire prevention effect.

[0026] Further, if Figure 1 As shown, in order to facilitate opening the door, a door handle 8 is further provided on the door panel 2.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A track door, characterized in that: include: Door frame (1) and door panel (2); One side of the door panel (2) is hinged to the door frame (1), and the door panel (2) comprises two outer panels (21) and an inner reinforcement panel (3), wherein the inner reinforcement panel (3) is arranged between the two outer panels (21), and a heat insulation layer (4) and a flame retardant layer (5) are sequentially provided on the side surface of the inner reinforcement panel (3) in a direction toward the outer panels (21); A plurality of reinforcing rods (31) are fixedly provided on both sides of the inner reinforcing plate (3), a connecting rod (311) is provided between two adjacent reinforcing rods (31) on the same side, the reinforcing rods (31) pass through the heat insulation layer (4) and the flame retardant layer (5) in sequence and are fixedly connected to the outer plate (21), and the plurality of reinforcing rods (31) on both sides of the inner reinforcing plate (3) are staggered.

2. A track door according to claim 1, characterized in that: The invention also includes a hinge (6), wherein the hinge (6) includes a first fixing plate (61) detachably connected to the door frame (1) and a second fixing plate (62) detachably connected to the door panel (2), wherein the first fixing plate (61) is in the shape of an elongated strip, and the second fixing plate (62) is hinged to the first fixing plate (61), and the hinge axis of the hinged connection between the second fixing plate (62) and the first fixing plate (61) is parallel to the length direction of the first fixing plate (61).

3. A track door as claimed in claim 2, characterized in that: Four hinges (6) are provided, and the four hinges (6) are located on the same side of the door panel (2).

4. A track door according to claim 1, characterized in that: A shutter (7) is also provided, the shutter (7) comprising a plurality of blades inclined in the same direction, a through opening (22) is provided at the lower portion of the door panel (2), two shutters (7) are provided, the two shutters (7) are respectively provided at the two ends of the through opening (22), and the blades on the two shutters (7) are symmetrically arranged.

5. The track door according to claim 1, characterized in that: The door panel (2) is also provided with a door handle (8).

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