CN220745051U - Door plant and elevator prevent fire door - Google Patents

Abstract

The utility model discloses a door plate and an elevator fireproof door, wherein the door plate comprises a door plate main body, an upper sealing head and a lower sealing head, and the upper sealing head and the lower sealing head are arranged at the upper end and the lower end of the door plate main body along the height direction of the door plate main body; wherein, upper head and/or low head and door plant main part set up to integral type structure. Therefore, the door plate can be integrally processed and formed, the processing technology is simplified, the production efficiency is improved, the waste materials generated in the production process can be reduced, and the effect of reducing the production cost is achieved.

Description

Door plant and elevator prevent fire door

Technical Field

The utility model belongs to the technical field related to elevator doors, and particularly relates to a door plate and an elevator fireproof door.

Background

The elevator fireproof door is characterized in that an independent fireproof structure is formed between two door plates of the elevator fireproof door and two door plates and corresponding door pocket stand columns so as to achieve the fireproof effect.

The door plate of the elevator fireproof door generally comprises a door plate main body, an upper sealing head and a lower sealing head, wherein the upper sealing head and the lower sealing head are arranged at the upper end and the lower end of the door plate main body along the height direction of the door plate main body. At present, the door plant that conventional elevator prevents fire door is usually stand alone type structure between upper cover and the lower cover and the door plant main part, specifically, need adopt welded mode to assemble upper cover and lower cover to the door plant main part in, therefore, when the door plant that the elevator prevents fire door need be with door plant main part, upper cover and lower cover separately production preparation respectively earlier, then assemble the three, so, not only processing procedure is many, production efficiency is low, and the door plant main part, upper cover and lower cover all can produce the waste material when processing moreover, the material consumption is many, thereby increase manufacturing cost.

Disclosure of Invention

In view of the foregoing, there is a need for a door panel and an elevator fire door that solve the above-mentioned problems.

The door plate is applied to the elevator fireproof door and is characterized by comprising a door plate main body, an upper sealing head and a lower sealing head, wherein the upper sealing head and the lower sealing head are arranged at the upper end and the lower end of the door plate main body along the height direction of the door plate main body;

wherein, upper head and/or lower head with the door plant main part sets up as integrated structure.

It can be understood that the upper sealing head and/or the lower sealing head and the door plate main body are arranged into an integrated structure, so that the door plate can be integrally processed and formed, the processing technology is simplified, the production efficiency is improved, the waste materials generated in the production process can be reduced, and the production cost is reduced.

In one embodiment, the upper header is formed by bending the door panel body portion;

and/or the lower seal head is formed by bending the door plate main body part.

It can be appreciated that the door panel body forms the upper seal head and/or the lower seal head in a bending manner, so that the upper seal head and/or the lower seal head is convenient to machine and form on the door panel body.

In one embodiment, two bending plates are formed on the door plate main body in a bending mode, one bending plate is fixedly connected with the upper sealing head, and the other bending plate is fixedly connected with the lower sealing head.

It can be understood that the upper end socket and the lower end socket are respectively connected by the bending plates formed by bending the door plate main body, so that the structural strength of the upper end socket and the lower end socket on the door plate main body can be improved.

In one embodiment, the upper head has a first connecting plate which is arranged parallel to the door panel body and through which the upper head can be connected to the corresponding bending plate;

and/or the lower seal head is provided with a second connecting plate, the second connecting plate is parallel to the door plate main body, and the lower seal head can be connected with the corresponding bending plate through the second connecting plate.

It can be understood that the upper seal head comprises a horizontal section formed by horizontally bending the upper end of the door plate main body, and the horizontal section continuously bends downwards to form a first connecting plate; the first connecting plate may be a vertical section formed by continuously extending the horizontal section downward vertically, or an inclined section formed by continuously extending the horizontal section downward obliquely; the first connecting plate is connected with the bending plate, so that the bending end of the upper sealing head can be supported and reinforced; the second connecting plate is arranged as above.

In one embodiment, the furthest distance between the bending plate and the corresponding upper head or the corresponding lower head is set to L, wherein L < 150mm.

In one embodiment, the door panel body is further folded to form a folded plate, and the folded plate is used for being matched with the door sleeve stand column to form a first fireproof structure.

It can be understood that the first fireproof structure formed by matching the folded plate with the door pocket stand column is utilized to realize the fireproof function of the assembly between the door plate and the door pocket stand column.

In one embodiment, the door panel further comprises a reinforcing rib plate, and the reinforcing rib plate is installed on the door panel main body and is respectively connected with the upper seal head and the lower seal head.

It can be understood that the reinforcing rib plates are used for respectively connecting the door plate main body, the upper sealing head and the lower sealing head, so that the integral structural strength of the door plate can be improved.

The application further requests protection of an elevator fireproof door, which comprises a first door plate and a second door plate, wherein the first door plate and the second door plate are arranged in a relatively opening and closing way;

wherein the first door panel and/or the second door panel are/is configured as the door panel.

In one embodiment, the first door panel is bent to form a first step, and the second door panel is bent to form a second step;

after the first door panel and the second door panel are closed, the second stepped step can be mutually matched with the first stepped step and form a second fireproof structure.

It is understood that the second fireproof structure formed by the cooperation of the first step and the second step is utilized to realize the fireproof function when the first door plate and the second door plate are closed.

In one embodiment, the first stepped portion extends into an upper end enclosure and a lower end enclosure of the first door panel and is connected with the upper end enclosure and the lower end enclosure respectively;

and/or the first step part extends into the upper end socket and the lower end socket of the second door plate and is respectively connected with the upper end socket and the lower end socket.

Compared with the prior art, the method has the following beneficial effects:

the application claims that door plant and elevator prevent fire door sets up upper cover and/or low head and door plant main part as an organic whole structure, so, can make door plant integrated into one piece, not only simplified processing technology like this, improve production efficiency, but also can reduce the waste material that accompanies production in the production process, and then have the effect of reduction in production cost.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of a door panel according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view of portion P of FIG. 1;

FIG. 3 is a schematic view of a door panel according to another embodiment of the present disclosure;

fig. 4 is a schematic structural view of an elevator fire door according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an elevator fire door according to an embodiment of the present application when the fire door is mated with a door pocket pillar.

Reference numerals: 100. a door panel; 10. a door panel body; 11. a bending plate; 20. an upper end enclosure; 21. a first connection plate; 22. a first horizontal segment; 30. a lower end enclosure; 31. a second connecting plate; 32. a second horizontal segment; 40. a folded plate; 50. reinforcing rib plates; 51. a vertical plate; 52. a horizontal lower folded plate; 53. a horizontal upper folded plate; 54. a connection structure; 541. a bottom surface; 542. an inclined plane; 110. a first door panel; 111. a first step; 120. a second door panel; 121. a second step; 200. door pocket stand column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The door plate 100 disclosed by the application is applied to an elevator fireproof door so that the elevator fireproof door can meet the GB/T27903-2011 fireproof test requirement.

As shown in fig. 1 and 3, a door panel 100 according to an embodiment of the present disclosure includes a door panel main body 10, an upper seal head 20, and a lower seal head 30, where the upper seal head 20 and the lower seal head 30 are disposed at upper and lower ends of the door panel main body 10 along a height direction of the door panel main body 10; wherein, the upper seal head 20 and/or the lower seal head 30 are/is arranged as an integral structure with the door panel body. Thus, the door panel 100 can be integrally formed, so that the processing technology is simplified, the production efficiency is improved, the waste materials generated in the production process can be reduced, and the production cost is reduced.

It should be noted that, in order to further facilitate the processing and forming of the door panel 100, the upper end socket 20 and the lower end socket 30 are both integrally formed with the door panel body 10. Of course, it is also possible for those skilled in the art to provide one of the upper seal head 20 and the lower seal head 30 as an integral structure with the door panel body 10, and the other is fixed to the door panel body 10 by welding, which will not be described herein.

Illustratively, the upper seal head 20 is formed by bending a part of the door panel body 10; and/or, the lower seal head 30 is formed by bending part of the door panel main body 10, so that the upper seal head 20 and/or the lower seal head 30 are convenient to process and form on the door panel main body 10. The respective bent ends of the upper head 20 and the lower head 30 (i.e., their respective free ends, in particular, see first connection plate 21, second connection plate 31 below) are located on the same side of the door panel body 10.

As shown in fig. 1 and 3, in some embodiments, a side edge of a door panel main body 10 is bent to form an upper bending plate 11 and a lower bending plate 11, wherein one bending plate 11 is fixedly connected with an upper sealing head 20, and the other bending plate 11 is fixedly connected with a lower sealing head 30. In this way, the structural strength of the upper seal head 20 and the lower seal head 30 on the door panel main body 10 can be improved, that is, the bending plate 11 can play a role in supporting the bending ends of the corresponding upper seal head 20 and the corresponding lower seal head 30.

The bending plate 11 is fixedly connected to the corresponding upper seal head 20 and the corresponding lower seal head 30 by welding or riveting. In addition, the bending plate 11 is formed by bending a part of the door panel body 10, so that the door panel body 10 is convenient to process and form the bending plate 11. In this way, when the door panel 100 is manufactured, the bending plate 11 can be formed by bending one side of the door panel body 10 according to the requirement, the upper end and the lower end of the door panel body 10 are formed by bending the upper end and the lower end of the door panel body 10, and then the upper end socket 20 and the lower end socket 30 are connected and fixed with the corresponding upper end socket 20 or the corresponding lower end socket 30 by welding or riveting. It is needless to say that, for those skilled in the art, the bending plate 11 may be provided independently of the door panel body 10, and specifically, may be connected and fixed to the door panel body 10 by welding or riveting.

As shown in fig. 1 and 3, in some embodiments, the upper head 20 has a first connection plate 21, the first connection plate 21 is disposed parallel to the door panel body 10, and the upper head 20 can be connected with the corresponding bending plate 11 through the first connection plate 21; and/or, the lower head 30 has a second connection plate 31, the second connection plate 31 is disposed parallel to the door panel body 10, and the lower head 30 can be connected with the corresponding bending plate 11 through the second connection plate 31. That is, the first connecting plate 21 on the upper seal head 20 and/or the second connecting plate 31 on the lower seal head 30 are respectively attached to the corresponding bending plates 11, so that the bending angles of the first connecting plate 21 on the upper seal head 20 and the second connecting plate 31 of the lower seal head 30 can be limited in the process of bending the door panel main body 10 and forming the upper seal head 20 and the lower seal head 30, and further the door panel main body 10 can be bent and formed conveniently.

Specifically, the upper end enclosure 20 includes the first horizontal segment 22 that forms by the door plant main part 10 upper end through the horizontal bending, the horizontal segment continues to be bent vertically downwards and forms first connecting plate 21, leave the space between first connecting plate 21 and the door plant main part 10, and the bending plate 11 that is located door plant main part 10 upper end inserts in this space and forms fixed connection with first connecting plate 21, bending plate 11 supports in the dog-ear department of upper end enclosure 20, not only can keep this dog-ear to be non-deformable, be fixed in on first connecting plate 21 through welding or riveted form, can also play the effect that improves upper end enclosure 20 bending end intensity. Similarly, the lower seal head 30 includes a second horizontal section 32 formed by horizontally bending the lower end of the door panel main body 10, the second horizontal section 32 continues to be vertically bent upwards to form a second connecting plate 31, a gap is reserved between the second connecting plate 31 and the door panel main body 10, a bending plate 11 positioned at the lower end of the door panel main body 10 is inserted into the gap to form fixed connection with the second connecting plate 31, the bending plate 11 is supported at a bending angle of the lower seal head 30, the bending angle can be kept not to deform, and the lower seal head is fixed on the second connecting plate 31 in a welding or riveting mode, so that the strength of the bending end of the lower seal head 30 can be improved.

The farthest distance between the bending plate 11 and the corresponding upper head 20 or the corresponding lower head 30 is set to L, where L < 150mm, and specifically L may be 145mm,140mm,130mm, or the like. In this manner, the door panel 100 can be made to meet its design specification requirements in an elevator fire door.

As shown in fig. 5, in some embodiments, a folded plate 40 is formed on the door panel main body 10 in a bending manner, and the folded plate 40 is used for being matched with the door pocket pillar 200 to form a first fireproof structure, that is, the folded plate 40 on the door panel 100 for being matched with the door pocket pillar 200 can also be integrally bent and formed with the upper sealing head 20 and the lower sealing head 30 on the door panel main body 10, so as to play a role in facilitating the production and preparation of the door panel 100; moreover, by utilizing the structural characteristics of the first fireproof structure, the fireproof effect can be achieved, and the GB/T27903-2011 fireproof test requirement can be met.

It should be noted that, the folded plate 40 is formed by bending one side of the door panel body 10, in one embodiment, the folded plate 40 and the bending plate 11 are formed by bending the same side of the door panel body 10, specifically, the upper portion and the lower portion of one side of the door panel body 10 are respectively bent to form the bending plate 11 so as to match with the corresponding upper end socket 20 and lower end socket 30, and the middle portion of one side of the door panel body 10 is bent to form the folded plate 40 so as to match with the door pocket pillar 200 to form the first fireproof structure. In one embodiment, the flap 40 and the bending plate 11 face away from each other; of course, according to practical application requirements, the folded plate 40 and the bending plate 11 may also be bent towards the same side of the door panel body 10, such as towards the front of the lower door panel body 10 or towards the back of the door panel body 10. The front and rear surfaces of the door panel body 10 may be differentiated toward the car side or away from the car side, or may be differentiated toward the hall side or away from the hall side. In addition, the folded plate 40 and the door pocket upright post 200 are mutually matched to form a first fireproof structure, which comprises a labyrinth-shaped channel, and the labyrinth-shaped channel is used for blocking smoke and flame to play a fireproof role; in one embodiment, the folded plate 40 is formed by extending the door panel body 10 horizontally outwards towards the door pocket pillar 200, bending the door panel body to extend vertically, and then continuing to bend the door panel body to extend horizontally inwards to form a U-shaped cross section, and the extending section extending horizontally inwards is inserted into the cavity formed by the bending section of the door pocket pillar 200 to form a labyrinth-shaped channel, wherein the inwards and outwards directions are defined in a direction approaching or separating from the door panel body 10.

In addition, the door panel 100 further includes a reinforcing rib plate 50, and the reinforcing rib plate 50 is mounted on the door panel body 10 and connected with the upper seal head 20 and the lower seal head 30, respectively, so that the overall structural strength of the door panel 100 can be improved. It should be noted that, the two end portions of the reinforcing rib plate 50 may be inserted into the corresponding upper end socket 20 and the corresponding lower end socket 30, and then connected to the door panel main body 10, the upper end socket 20 and the lower end socket 30, respectively.

Specifically, in one embodiment, two bending plates 11 are formed at the upper and lower ends of one side of the door panel body 10, and the two bending plates 11 are respectively inserted into the gap between the upper end 20 and the door panel body 10 from the side of the door panel body 10 or into the gap between the lower end 30 and the door panel body 10 from the side of the door panel body 10, so as to support the upper end 20 or the lower end 30, corresponding to the positions of the upper end 20 and the lower end 30; the reinforcing rib plate 50 is located in the middle of the door panel body 10, the upper end of the reinforcing rib plate is inserted into the gap between the upper end socket 20 and the door panel body 10, the lower end of the reinforcing rib plate is inserted into the gap between the lower end socket 30 and the door panel body 10, and the reinforcing rib plate is fixed with the door panel body 10, the upper end socket 20 and the lower end socket 30 through welding or riveting, so as to support and improve the strength of the middle sections of the upper end socket 20 and the lower end socket 30.

As shown in fig. 2, the reinforcing rib plate 50 includes a vertical plate 51, a horizontal lower flap 52, and a horizontal upper flap 53, wherein the bottom surface of the vertical plate 51 is abutted to the door panel body 10 through the horizontal lower flap 52, and the top surface of the vertical plate 51 is abutted to the corresponding upper seal head 20 and the corresponding lower seal head 30 through the horizontal upper flap 53. Wherein, the vertical plate 51 is connected with the horizontal lower folded plate 52 and the horizontal upper folded plate 53 to form a Z-shaped structure with a Z-shaped cross section. To enhance the supporting effect of the reinforcing plate 50, two or more sets of Z-shaped structures may be provided. In one embodiment, the reinforcing rib 50 comprises two sets of symmetrically arranged Z-shaped structures, and the middle of the two sets of Z-shaped structures are connected through a connecting structure 54. The cross section of the connection structure 54 is in an inverted conical structure, and the connection structure 54 comprises a bottom surface 541 abutting against the door panel main body 10, and an inclined surface 542 connecting the bottom surface 541 and the two-side Z-shaped structures. The vertical plate 51 can play a role in supporting the upper seal head 20 and the lower seal head 30, and the contact area between the horizontal lower folded plate 52 and the horizontal upper folded plate 53 and the door panel main body 10 or the upper seal head 20 and the lower seal head 30 can be increased; with the intermediate connecting structure 54, not only can the upper horizontal flap 53 supporting the top surface of the Z-shaped structure be provided, but also the contact area between the reinforcing rib plate 50 and the door panel body 10 can be further increased by the bottom surface structure thereof.

As shown in fig. 3, the present application further provides an elevator fire door, which includes a first door panel 110 and a second door panel 120, where the first door panel 110 and the second door panel 120 are disposed in an opening-closing manner; the first door panel 110 and the second door panel 120 are both configured as the door panel 100 described above, and preferably, the first door panel 110 and the second door panel 120 are both configured as the door panel 100 described above. Thus, the door plate 100 is integrally manufactured and molded, and the function of reducing the production cost of the elevator fireproof door can be achieved.

It should be noted that, the first door panel 110 and the second door panel 120 are arranged to open and close relatively, specifically, the first door panel 110 and the second door panel 120 can move in opposite directions or in opposite directions according to the requirement, so as to meet the use requirement of the elevator.

As shown in fig. 4 and 5, in some embodiments, the first door panel 110 is formed with a first stepped step 111, and in particular, the first stepped step 111 is formed on the door panel body 10 at a side away from the bending plate 11; the second door panel 120 is formed with a second step 121, and specifically, the door panel body 10 is formed with the second step 121 on a side thereof away from the bending plate 11; after the first door panel 110 and the second door panel 120 are closed, the second step 121 can be mated with the first step 111 and formed into a second fire preventing structure. Therefore, the structural characteristics of the second fireproof structure are utilized, the fireproof effect can be achieved, and the GB/T27903-2011 fireproof test requirement is met. It should be noted that the first step 111 and the second step 121 may be formed by bending the corresponding door panel body 10.

It should be noted that the second fireproof structure includes a Z-shaped channel formed by the offset complementary matching of the first step 111 and the second step 121, and the Z-shaped channel can block the intrusion of smoke and flame to perform a fireproof function.

In some embodiments, the first step 111 extends into the upper seal head 20 and the lower seal head 30 of the first door panel 110, and is connected to the upper seal head 20 and the lower seal head 30 respectively, and specifically can be connected to the first connection plate 21 of the upper seal head 20 and the second connection plate 31 of the lower seal head 30; and/or, the second step 121 extends into the upper seal head 20 and the lower seal head 30 of the second door 120, and is connected with the upper seal head 20 and the lower seal head 30 respectively, and specifically can be connected with the first connection plate 21 of the upper seal head 20 and the second connection plate 31 of the lower seal head 30. In one embodiment, two bending plates 11 on the first door panel 110 extend into a gap between the upper end enclosure 20 and the door panel body 10 from one side edge of the door panel body 10, or a gap between the lower end enclosure 30 and the door panel body 10, and the upper end enclosure 20 and the lower end enclosure 30 are supported from the side edge through the two bending plates 11; the other side of the door panel body 10 (the side facing the second door panel 120) extends from the first step 111 into the gap between the upper seal head 20 and the door panel body 10 and the gap between the lower seal head 30 and the door panel body 10, and supports the upper seal head 20 and the lower seal head 30 on the side of the door panel body 10 facing the second door panel 120; meanwhile, the middle sections of the upper end enclosure 20 and the lower end enclosure 30 are supported by the reinforcing rib plates 50, so that the structures of the upper end enclosure 20 and the lower end enclosure 30 are reinforced through the matching structures at the two sides of the door plate main body 10 and the matching structures of the middle section reinforcing rib plates 50; the bending plate 11 on the second door 120 is arranged in the same way as the matching structure between the corresponding upper seal head 20, the corresponding lower seal head 30 and the second step 121.

To sum up, the elevator fire door of this application is with upper cover 20, low head 30, first ladder step 111 in the first door plant 110 by door plant main part 10 bending molding, wherein, upper cover 20 and low head 30 can support the connection with the board 11 and the first ladder step 111 that buckle and form on door plant main part 10, so, can improve upper cover 20 and low head 30 structural strength on door plant main part 10, in addition, be used for on the first door plant 110 with door pocket stand 200 cooperation in order to form first fire structure's folded plate 40 also through door plant main part 10 bending molding, so can make first door plant 110 integrated into one piece, not only simplified processing technology like this, improve production efficiency, but also can reduce the waste material that accompanies production in the production process, and then have the effect of reduction in production cost. The same applies to the second door panel 120 and will not be described herein.

The technical features of the above embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.

Claims (12)

1. The door plate is applied to an elevator fireproof door, and is characterized in that the door plate (100) comprises a door plate main body (10), an upper sealing head (20) and a lower sealing head (30), and the upper sealing head (20) and the lower sealing head (30) are arranged at the upper end and the lower end of the door plate main body (10) along the height direction of the door plate main body (10);

wherein the upper seal head (20) and/or the lower seal head (30) and the door plate main body (10) are/is arranged as an integrated structure.

2. Door panel according to claim 1, characterized in that the upper closure head (20) is formed by bending the door panel body (10) partially;

and/or, the lower seal head (30) is formed by bending part of the door plate main body (10).

3. Door panel according to claim 1, characterized in that the door panel body (10) is bent to form two bending plates (11), wherein one bending plate (11) is fixedly connected with the upper end socket (20), and the other bending plate (11) is fixedly connected with the lower end socket (30).

4. A door panel according to claim 3, characterized in that the upper closure head (20) has a first connection plate (21), the first connection plate (21) being arranged parallel to the door panel body (10), and the upper closure head (20) being connectable with the corresponding bending plate (11) via the first connection plate (21);

and/or the lower seal head (30) is provided with a second connecting plate (31), the second connecting plate (31) is arranged parallel to the door plate main body (10), and the lower seal head (30) can be connected with the corresponding bending plate (11) through the second connecting plate (31).

5. A door panel according to claim 3, characterized in that the furthest distance between the bending plate (11) and the corresponding upper head (20) or the corresponding lower head (30) is set to L, wherein L < 150mm.

6. Door panel according to claim 1, characterized in that the door panel body (10) is further folded to form a flap (40), which flap (40) is intended to cooperate with the door pocket pillar (200) to form a first fire protection structure.

7. The door panel according to claim 1, wherein the door panel (100) further comprises a reinforcing rib plate (50), and the reinforcing rib plate (50) is mounted on the door panel main body (10) and is connected with the upper end enclosure (20) and the lower end enclosure (30) respectively.

8. The door panel according to claim 7, wherein the reinforcing rib plate (50) comprises a vertical plate (51), a horizontal lower folded plate (52) and a horizontal upper folded plate (53), the bottom surface of the vertical plate (51) is abutted to the door panel main body (10) through the horizontal lower folded plate (52), and the top surface of the vertical plate (51) is abutted to the corresponding upper sealing head (20) and the corresponding lower sealing head (30) through the horizontal upper folded plate (53).

9. The door panel according to claim 8, characterized in that the connection between the vertical plate (51) and the horizontal lower flap (52) and the horizontal upper flap (53) forms a Z-shaped structure with a Z-shaped cross section;

the reinforcing rib plate (50) comprises at least two groups of Z-shaped structures which are symmetrically distributed, the middle parts of the two groups of Z-shaped structures are connected through a connecting structure (54), the cross section of the connecting structure (54) is of an inverted frustum structure, wherein the connecting structure (54) comprises a bottom surface (541) which is abutted to the door plate main body (10), and inclined surfaces (542) which are connected with the bottom surface (541) and the Z-shaped structures on two sides.

10. The fireproof door for the elevator is characterized by comprising a first door plate (110) and a second door plate (120), wherein the first door plate (110) and the second door plate (120) are arranged in a relatively opened and closed mode;

wherein the first door panel (110) and the second door panel (120) are both provided as door panels (100) according to any one of claims 1-9.

11. The elevator fire door of claim 10, wherein the first door panel (110) is bent to form a first stepped step (111), and the second door panel (120) is bent to form a second stepped step (121);

the second step (121) is capable of cooperating with the first step (111) and is formed as a second fire-protecting structure after the first door panel (110) and the second door panel (120) are closed.

12. The elevator fire door of claim 11, wherein the first stepped step (111) partially extends into an upper head (20) and a lower head (30) of the first door panel (110) and is connected to the upper head (20) and the lower head (30), respectively;

and/or, the second step (121) extends into the upper end enclosure (20) and the lower end enclosure (30) of the second door plate (120), and is respectively connected with the upper end enclosure (20) and the lower end enclosure (30).