Fireproof door plate for lift car

Abstract

The fireproof door plate comprises a door body plate, a left reinforcing plate, a right reinforcing plate, a middle reinforcing plate, a decorative cover plate and a fireproof heat insulation plate, the door body plate comprises a planar main plate body, a large turned-over edge and a small turned-over edge, the left reinforcing plate comprises a main body part and an edge landing part, the section of the edge landing part is in an L shape, the middle reinforcing plate comprises a U-shaped part and a 90-degree turned-over edge part, and the decorative cover plate is arranged in the middle of the door body plate. The fireproof heat insulation plate comprises a first heat insulation plate, a second heat insulation plate and a third heat insulation plate, the second heat insulation plate is arranged in the groove of the U-shaped part, the third heat insulation plate is arranged between the middle reinforcing plate and the right reinforcing plate, and the right end of the third heat insulation plate abuts against the left side of the right reinforcing plate perpendicular to one side of the main plate body. According to the utility model, the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate are used for mounting the fire-resistant heat-insulating plate, so that the fire-resistant heat-insulating plate is convenient to disassemble and assemble, the fire-resistant heat-insulating plate can be directly clamped into the cavities, glue is not needed for mounting, the disassembly and assembly are convenient, and the overall deviation of the fire-resistant heat-insulating plate is not caused.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a fire-resistant door panel for a car. Background Art

[0002] Car elevators are commonly used vertical elevators with sliding door panels at each floor entrance and on the car. To prevent smoke and fire from entering the car through the car exit or entering the elevator shaft through each floor entrance, fire-resistant door panels are typically used. Existing fire-resistant door panels typically incorporate an integral insulation panel between the decorative panel and the door panel, secured with glue. This makes disassembly and assembly extremely difficult. Over time, the glue can easily peel, causing the insulation material to shift. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fire-resistant door panel for a car.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a fire-resistant door panel for a car, comprising a door body panel, a left reinforcing plate arranged on the left side of the front side of the door body panel, a right reinforcing plate arranged on the right side of the front side of the door body panel, a middle reinforcing plate arranged in the middle of the front side of the door body panel, a decorative cover plate arranged on the front side of the door body panel, and a fire-resistant heat-insulating plate arranged between the decorative cover plate and the door body panel, the door body panel comprises a planar main body, a large flange arranged at the left end of the main body, and a small flange arranged at the right end of the main body, the large flange and the small flange are both L-shaped, the left reinforcing plate comprises a main body with a Z-shaped cross section, a lap portion connected to one end of the main body, the lap portion has an L-shaped cross section, the middle reinforcing plate comprises a U-shaped portion, and 90-degree flange portions located at both ends of the U-shaped portion, that is, the 90-degree flange portions are parallel to the main body, The cross-section of the right reinforcing plate is Z-shaped, one side of the right reinforcing plate is attached to the front side of the right end of the main body, and the other side of the right reinforcing plate is attached to the small flange parallel to one side of the main body. The fire-resistant heat insulation board includes a first heat insulation board, a second heat insulation board, and a third heat insulation board. The first heat insulation board is arranged between the left reinforcing plate and the middle reinforcing plate. The front side of the right end of the first heat insulation board is attached to the rear side of the left flange of the middle reinforcing plate. The left end of the first heat insulation board is against the right side of the main body perpendicular to one side of the main body. The second heat insulation board is The plate is arranged in the groove of the U-shaped portion, the rear side of the second heat insulation plate is attached to the side of the U-shaped portion away from the opening, the left and right sides of the second heat insulation plate respectively abut the left and right sides of the U-shaped portion, the third heat insulation plate is arranged between the middle reinforcing plate and the right reinforcing plate, the front side of the left end of the third heat insulation plate is attached to the rear side of the flange of the right end of the middle reinforcing plate, the right end of the third heat insulation plate abuts the left side of the right reinforcing plate perpendicular to the side of the main board body, the overlapping portion and the main body are parallel to one side of the main board body to form a U-shaped opening opening to the right.

[0005] As a further improvement of the present design, the decorative cover plate is connected to the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate by self-tapping screws.

[0006] As a further improvement of the present design, the cross-sections of the first heat insulation board, the second heat insulation board and the third heat insulation board are all oval-shaped.

[0007] As a further improvement of the present design, the overlapped edge is completely fitted to the large flange.

[0008] As a further improvement of this design, an upper cross beam is provided at the top of the front side of the main board body, and a lower cross beam is provided at the bottom of the front side of the main board body. The bottom of the upper cross beam abuts the top of the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate, and the top of the lower cross beam abuts the bottom of the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate.

[0009] The beneficial effects of the present invention are as follows: the present invention is divided into three chambers by the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate, which are used to install the fire-resistant insulation board, and are convenient for disassembly and assembly of the fire-resistant insulation board. The fire-resistant insulation board can be directly inserted into the chamber without the need for glue installation, and is convenient for disassembly and assembly, and will not cause the overall displacement of the fire-resistant insulation board. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 It is a front schematic diagram of the present utility model.

[0012] Figure 2 This utility model is Figure 1 Schematic diagram of the AA section.

[0013] Figure 3 This utility model is Figure 2 Schematic diagram of the middle BB section.

[0014] In the figure, 1. door panel, 10. large flange, 11. main board, 12. small flange, 13. U-shaped opening, 2. fire-resistant insulation board, 20. first insulation board, 21. second insulation board, 22. third insulation board, 3. upper crossbeam, 4. decorative cover plate, 5. lower crossbeam, 6. self-tapping screws, 7. left reinforcement plate, 70. main body, 71. overlapping part, 8. middle reinforcement plate, 80. U-shaped part, 81. 90-degree flange part, 9. right reinforcement plate. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention. Example

[0016] See Figure 1 、 Figure 2 The present embodiment provides a fire-resistant door panel for a car, comprising a door panel 1, a left reinforcing plate 7 arranged on the left front side of the door panel 1, a right reinforcing plate 9 arranged on the right front side of the door panel 1, a middle reinforcing plate 8 arranged in the middle of the front side of the door panel 1, a decorative cover plate 4 arranged on the front side of the door panel, and a fire-resistant heat-insulating plate 2 arranged between the decorative cover plate 4 and the door panel 1. The door panel 1 comprises a planar main body 11, a main body 11 arranged on the main body 11. The large flange 10 at the left end and the small flange 12 provided at the right end of the main body 11, the large flange 10 and the small flange 12 are both L-shaped, the left reinforcing plate 7 includes a main body 70 with a Z-shaped cross section, a lap portion 71 connecting one end of the main body 70, and the lap portion 71 has an L-shaped cross section, the middle reinforcing plate 8 includes a U-shaped portion 80, and a 90-degree flange portion 81 located at both ends of the U-shaped portion 80, that is, the 90-degree flange portion 81 is parallel to the main body 11, The cross section of the right reinforcing plate 9 is Z-shaped, and one side of the right reinforcing plate 9 is attached to the front side of the right end of the main body 11, and the other side of the right reinforcing plate 9 is attached to the small flange 12 parallel to the side of the main body 11. The fire-resistant heat-insulating board 2 includes a first heat-insulating board 20, a second heat-insulating board 21, and a third heat-insulating board 22. The first heat-insulating board 20 is arranged between the left reinforcing plate 7 and the middle reinforcing plate 8. The right end front side of the first heat-insulating board 20 is attached to the rear side of the left flange of the middle reinforcing plate 8. The left end of the first heat-insulating board 20 is against the right side of the main body 70 perpendicular to the side of the main body 11. The second heat-insulating board 21 is arranged in the groove of the U-shaped portion 80, the rear side of the second heat insulation board 21 is attached to the side of the U-shaped portion 80 away from the opening, and the left and right sides of the second heat insulation board 21 respectively abut the left and right sides of the U-shaped portion 80, and the third heat insulation board 22 is arranged between the middle reinforcing plate 8 and the right reinforcing plate 9. The front side of the left end of the third heat insulation board 22 is attached to the rear side of the flange of the right end of the middle reinforcing plate 8, and the right end of the third heat insulation board 22 abuts the left side of the right reinforcing plate 9 perpendicular to the side of the main body 11. The overlapping portion 71 and the main body 70 are parallel to the side of the main body 11 to form a U-shaped opening 13 opening to the right.

[0017] The left reinforcing plate 7, the middle reinforcing plate 8, and the right reinforcing plate 9 form three chambers for mounting the fire-resistant insulation panel 2. This allows for easy assembly and disassembly of the panel 2, eliminating the need for glue. This facilitates assembly and disassembly, and prevents the panel 2 from shifting. The U-shaped opening 13 facilitates fire and smoke protection between adjacent panels of the multi-fold door.

[0018] See Figure 1To facilitate the installation of the decorative cover plate 4, the decorative cover plate 4 is connected to the left reinforcing plate 7, the middle reinforcing plate 8, and the right reinforcing plate 9 by self-tapping screws 6. The tips of the self-tapping screws penetrate into the interior of the fire-resistant insulation board 2 to limit and fix the fire-resistant insulation board 2.

[0019] See Figure 2 In order to facilitate the installation of the fire-resistant insulation board 2 and prevent the fire-resistant insulation board 2 from being squeezed, deformed and stuck in the chamber, the cross-sections of the first insulation board 20, the second insulation board 21 and the third insulation board 22 are all oval.

[0020] See Figure 2 In order to ensure the strength of the large flange 10 during operation, the overlap portion 71 is completely fitted to the large flange 10 .

[0021] See Figure 1 and Figure 3 To improve the overall strength of the fire-resistant door panel and limit the fire-resistant insulation board 2, an upper crossbeam 3 is provided on the top front side of the main body 11, and a lower crossbeam 5 is provided on the bottom front side of the main body 11. The bottom of the upper crossbeam 3 abuts the top of the left reinforcing plate 7, the middle reinforcing plate 8, and the right reinforcing plate 9, while the top of the lower crossbeam 5 abuts the bottom of the left reinforcing plate 7, the middle reinforcing plate 8, and the right reinforcing plate 9. The fire-resistant insulation board uses insulation cotton.

[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fire-resistant door panel for a car, characterized in that: The door panel comprises a door body panel, a left reinforcing plate arranged on the left side of the front side of the door body panel, a right reinforcing plate arranged on the right side of the front side of the door body panel, a middle reinforcing plate arranged in the middle part of the front side of the door body panel, a decorative cover plate arranged on the front side of the door body panel, and a fire-resistant heat-insulating plate arranged between the decorative cover plate and the door body panel. The door body panel comprises a planar main body, a large flange arranged at the left end of the main body, and a small flange arranged at the right end of the main body, the large flange and the small flange are both L-shaped, the left reinforcing plate comprises a main body with a Z-shaped cross section, a lap portion connected to one end of the main body, the lap portion has an L-shaped cross section, the middle reinforcing plate comprises a U-shaped portion, and 90-degree flange portions located at both ends of the U-shaped portion, that is, the 90-degree flange portions are parallel to the main body. The cross-section of the right reinforcing plate is Z-shaped, one side of the right reinforcing plate is attached to the front side of the right end of the main body, and the other side of the right reinforcing plate is attached to the small flange parallel to one side of the main body. The fire-resistant heat insulation board includes a first heat insulation board, a second heat insulation board, and a third heat insulation board. The first heat insulation board is arranged between the left reinforcing plate and the middle reinforcing plate. The front side of the right end of the first heat insulation board is attached to the rear side of the left flange of the middle reinforcing plate. The left end of the first heat insulation board is against the right side of the main body perpendicular to one side of the main body. The second heat insulation board is The plate is arranged in the groove of the U-shaped portion, the rear side of the second heat insulation plate is attached to the side of the U-shaped portion away from the opening, the left and right sides of the second heat insulation plate respectively abut the left and right sides of the U-shaped portion, the third heat insulation plate is arranged between the middle reinforcing plate and the right reinforcing plate, the front side of the left end of the third heat insulation plate is attached to the rear side of the flange of the right end of the middle reinforcing plate, the right end of the third heat insulation plate abuts the left side of the right reinforcing plate perpendicular to the side of the main board body, the overlapping portion and the main body are parallel to one side of the main board body to form a U-shaped opening opening to the right.

2. A fire-resistant door panel for a car according to claim 1, characterized in that: The decorative cover plate is connected to the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate by self-tapping screws.

3. The fire-resistant door panel for a car according to claim 1, characterized in that: The cross sections of the first heat insulation board, the second heat insulation board and the third heat insulation board are all oval-shaped.

4. The fire-resistant door panel for a car according to claim 1, characterized in that: The overlapping edge is completely fitted to the large flange.

5. The fire-resistant door panel for a car according to claim 1, characterized in that: An upper crossbeam is provided at the top of the front side of the main board body, and a lower crossbeam is provided at the bottom of the front side of the main board body. The bottom of the upper crossbeam abuts the top of the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate, and the top of the lower crossbeam abuts the bottom of the left reinforcing plate, the middle reinforcing plate and the right reinforcing plate.

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