Novel heat insulation fireproof elevator door and elevator using same

Abstract

The utility model discloses a novel heat insulation fireproof elevator door and an elevator using the elevator door, the elevator door comprises a left door plate and a right door plate which are closed with each other, the right door plate and the left door plate respectively comprise a mounting bottom plate and a heat insulation plate fixed in the mounting bottom plate; a reinforcing rib with a rectangular section is arranged in the middle of the inner side surface of the mounting bottom plate; a left side plate of the mounting bottom plate is bent inwards to be connected with the heat insulation plate supporting plate to form a first tubular stand column with an inverted T-shaped section, and a right side plate of the mounting bottom plate is bent inwards to be connected with the heat insulation plate supporting plate to form a second tubular stand column with an L-shaped section; the heat insulation plate is arranged in a space formed by the first tubular stand column, the reinforcing ribs and the second tubular stand column, and the heat insulation plate is fixed to the mounting bottom plate through side pressing plates on the two sides, an upper pressing plate and a lower pressing plate; the first tubular stand column of the left door plate and the first tubular stand column of the right door plate form a labyrinth structure. The structure has the advantages of being thin in door plate, low in manufacturing cost and good in strength, and can be widely applied to various elevators.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof elevator doors, in particular to a novel heat-insulating fireproof elevator door and an elevator using the elevator door. Background Art

[0002] As a special equipment that people often use in their daily lives, the safety and reliability of elevators are very important. However, with the participation of more and more elevator companies, market competition is becoming increasingly fierce, and optimization and cost reduction have become important issues for companies. As the most used component of the entire elevator system, it is particularly important to reduce costs on elevator doors.

[0003] In the elevator industry, in order to reduce costs and profits, while meeting the national standard strength requirements, elevator doors are now made thinner and thinner, with the thickness of the door panels increasing from 1.5mm to 1.2mm, and then to 1.0mm or even 0.8mm. However, the thinner the door panels, the weaker the door strength. For panels with a thickness of 1.0mm or less, most existing thermal insulation fire door structures can only be used in small-size applications with a small door opening width and low door opening height. At the same time, the door panels generally only have one reinforcing rib structure. For large-size thermal insulation fire doors with a large door opening width and high door opening, the existing structures cannot meet the strength requirements.

[0004] In the face of the current situation, this application aims to develop a new thermal insulation fire door to achieve optimization and cost reduction under the premise of meeting the strength requirements of national standards, while also solving the disadvantage of insufficient strength of large specifications. Utility Model Content

[0005] The technical problem to be solved by the present application is that in order to reduce costs, the thermal insulation fire door structures of existing elevators can mostly only be used in small-sized specifications with a small door opening width and a low door opening height, and cannot meet the strength requirements for large-sized thermal insulation fire doors with a large door opening width and a high door opening.

[0006] To solve the above technical problems, one aspect of the present application provides a new type of insulated fireproof elevator door, comprising a left door panel and a right door panel that are closed to each other, both the right door panel and the left door panel comprising a mounting base plate and an insulation board fixed in the mounting base plate; a reinforcing rib with a rectangular cross-section is provided in the middle of the inner side surface of the mounting base plate to support the insulation board; the left side panel of the mounting base plate is bent inwardly to connect the insulation board support plate to form a first tubular column with a ┻-shaped cross-section, and the right side panel of the mounting base plate is bent inwardly to connect the insulation board support plate to form a second tubular column with a ┛-shaped cross-section; the insulation board is placed in a space formed by the first tubular column, the reinforcing rib and the second tubular column, and the insulation board is fixed to the mounting base plate by side pressure plates, an upper pressure plate and a lower pressure plate on both sides; wherein, when the left door panel and the right door panel are closed at the center line of the door opening, the first tubular column of the left door panel and the first tubular column of the right door panel form a maze structure.

[0007] According to an embodiment of the present application, the insulation board support plate is a bent plate with two layers of steps, one side of the mounting base plate is bent inwardly into two layers of steps, and the other opposite side is bent inwardly into a right angle, the two-layer stepped sides of the bent plate and the mounting base plate are spliced ​​to form a first tubular column, the right-angled sides of the bent plate and the mounting base plate are spliced ​​to form a second tubular column, the bottom layer of the bent plate and the reinforcement rib are located on the same horizontal plane, and the second layer height of the bent plate is adapted to the thickness of the insulation board.

[0008] According to an embodiment of the present application, the top plate of the bent plate is parallel to the inner side surface of the mounting base plate and connected to the side plate of the mounting base plate, and the bottom plate of the bent plate fits the inner side surface of the mounting base plate and is fixedly connected thereto. The bent plate and the mounting base plate are fixedly connected by riveting, welding or bonding.

[0009] According to an embodiment of the present application, a plurality of heat insulation board cross-pressing plates are evenly arranged along the body of the heat insulation board.

[0010] According to an embodiment of the present application, a side baffle is installed on a side of the installation base plate away from the closed side, and an upper baffle is installed on the top side of the installation base plate.

[0011] According to an embodiment of the present application, extension plates are provided on both sides of the reinforcing ribs and connected to the inner side of the mounting base plate. The extension plates are fixedly connected to the mounting base plate by welding or bonding.

[0012] According to an embodiment of the present application, the tops of the left door panel and the right door panel are respectively connected to the elevator floor door device through door hanging bolts.

[0013] According to an embodiment of the present application, the heat insulation board is made of high-grade refractory material.

[0014] Another aspect of the present application discloses an elevator, comprising the fireproof elevator door as described above.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] 1. The present application arranges an insulation board in the installation base plate of the door panel for fire prevention and heat insulation. Compared with the prior art in which the insulation board has only one longitudinal reinforcement rib, the present application arranges insulation board supports on both sides of the installation base plate inwardly, so that the insulation board is placed in the space formed by the insulation board supports on both sides, the middle reinforcement rib and the installation base plate, so that the insulation board has a three-reinforcement rib structure. Compared with the existing products, the door strength is significantly improved under the same door base plate thickness. The patented insulated fire door can replace the existing products with a thinner door base plate, and has the characteristics of thin door panel, good strength and low cost. At the same time, the presence of three reinforcement ribs can increase the manufacturing of the door panel, making the insulated fire door more applicable.

[0017] 2. In the present application, when the left door panel and the right door panel are closed, a maze structure is formed, which can effectively slow down the speed at which flames enter the elevator shaft and improve the fireproof and heat-insulating properties.

[0018] 3. The utility model has a simple structure and good fireproof and heat-insulating effects. The heat-insulating board is reinforced with transverse reinforcing ribs and middle vertical reinforcing ribs, so that the elevator floor door has impact resistance and ensures the safety of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0020] Figure 1 A cross-sectional schematic diagram of a base plate for installing a heat-insulating fireproof elevator door in the prior art;

[0021] Figure 2 A schematic diagram of the installation structure of a new type of heat-insulating fireproof elevator door as an example of the utility model;

[0022] Figure 3 for Figure 2 Cross-section along the AA direction;

[0023] Figure 4 It is a cross-sectional schematic diagram of the installation base plate in the example of the present utility model;

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Right door panel, 2. Elevator floor door device, 3. Door opening center line, 4. Upper pressure plate, 5. Lower pressure plate, 6. Side pressure plate, 7. Insulation board cross pressure plate, 10. Installation base plate, 11. Reinforcement ribs, 12. First tubular column, 13. Second tubular column, 14. Side baffle, 20. Insulation board, 30. Insulation board support plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0027] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.

[0028] like Figures 2 to 4 As shown, a new type of heat-insulating fireproof elevator door exemplified by the utility model comprises a left door panel and a right door panel 1 which are closed to each other. The left door panel and the right door panel 1 form a mosaic-type maze structure at the center line 3 of the door opening. A reinforcing rib 11 is provided in the middle of the mounting bottom plate 10 of the door panel, and the two sides are respectively bent into different shapes to connect the stepped insulation board support plate 30, so that a structure with reinforcing ribs on the left, middle and right sides is formed on the contact surface between the mounting bottom plate 10 and the insulation board 20, as shown in FIG. Figure 1 As shown, compared with the prior art in which the door panel structure has only one reinforcing rib 11 structure, the heat-insulating fireproof elevator door of the present application has three evenly arranged reinforcing rib structures, which has higher strength.

[0029] In this embodiment, both the right door panel 1 and the left door panel include a mounting base plate 10 and a heat insulation board 20 fixed in the mounting base plate 10. A reinforcing rib 11 with a rectangular cross section is provided in the middle of the inner side surface of the mounting base plate 10 to support the heat insulation board 20; the left side plate of the mounting base plate 10 is bent inwardly to connect the heat insulation board support plate 30 to form a first tubular column 12 with a ┻-shaped cross section, and the right side plate of the mounting base plate 10 is bent inwardly to connect the heat insulation board support plate 30 to form a second tubular column 13 with a ┛-shaped cross section.

[0030] Specifically, Figure 3 , Figure 4As shown, the heat insulation board support plate 30 is a bent plate in a two-layer stepped shape, one side of the mounting base plate 10 is bent inwardly into a two-layer stepped shape, and the other opposite side is bent inwardly into a right angle shape, the bent plate and the mounting base plate 10 are spliced ​​at two layers of stepped sides to form a first tubular column 12, and the bent plate and the mounting base plate 10 are spliced ​​at a right angle to form a second tubular column 13, the bottom layer of the bent plate and the reinforcing rib 11 are located in the same horizontal plane, and the height of the second layer of the bent plate is adapted to the thickness of the heat insulation board 20. Among them, the top plate of the bent plate is parallel to the inner side surface of the mounting base plate 10 and is connected to the side plate of the mounting base plate 10, and the bottom plate of the bent plate extends outward to fit the inner side surface of the mounting base plate 10 and is fixedly connected thereto. The heat insulation board 20 is placed in the space formed by the first tubular column 12, the reinforcement rib 11 and the second tubular column 13. The bent plate of the first tubular column 12 is equivalent to the longitudinal reinforcement rib on one side of the bottom surface of the heat insulation board 20, and the bent plate of the second tubular column 13 is equivalent to the longitudinal reinforcement rib structure on the other side of the bottom surface of the heat insulation board 20. Together with the reinforcement rib 11 in the middle of the mounting base plate 10, each heat insulation board 20 is provided with 3 longitudinal reinforcement rib structures between the mounting base plates 10, and the structural strength of the entire door panel is significantly enhanced.

[0031] Specifically, a plurality of heat insulation board transverse pressing plates 7 are evenly arranged along the body of the heat insulation board 20 , and the heat insulation board transverse pressing plates 7 function as transverse reinforcing ribs of the heat insulation board.

[0032] Specifically, the bending plate is fixedly connected to the mounting base plate 10 by riveting, welding or bonding. The present application does not limit the connection method between the heat insulation plate 20 and the mounting base plate 10, and a common connection method in the technical field can be used.

[0033] Specifically, the reinforcing rib 11 has a rectangular cross-section, and extension plates are provided on both sides of the bottom of the reinforcing rib 11 to connect to the inner side of the mounting base plate 10. The extension plates are fixedly connected to the mounting base plate 10 by riveting, welding or bonding. The present application does not limit the connection method between the reinforcing rib 11 and the mounting base plate 10, and the common connection method in this technical field can be adopted.

[0034] When the left door panel and the right door panel 1 are closed at the door opening center line 3, the first tubular column 12 of the left door panel and the first tubular column 12 of the right door panel 1 form a maze structure, that is, the left door panel and the right door panel 1 near the door opening center line 3 adopt a concave-convex mosaic maze structure, and the function of the maze structure is to prevent open flames from entering through the gap between the two doors. The closure of the left door panel and the right door panel 1 is relatively set according to the shapes of the closed sides of the two, and the shapes of the first tubular column 12 of the left door panel and the first tubular column 12 of the right door panel 1 meet the requirements of the concave and convex parts being adapted and embedded to form a closed connection.

[0035] In this embodiment, the heat insulation board 20 is fixed in the installation base plate 10 by the side pressing plates 6, the upper pressing plate 4 and the lower pressing plate 5 on both sides.

[0036] Specifically, a side baffle 14 is installed on a side of the installation base plate 10 away from the closed side, and an upper baffle is installed on the top side of the installation base plate 10 .

[0037] Specifically, the tops of the left door panel and the right door panel 1 are connected to the elevator floor door device 2 through door hanging bolts respectively.

[0038] Specifically, the heat insulation board 20 is made of high-grade refractory material, such as silicon dioxide.

[0039] In another aspect of the present application, the present application discloses an elevator, including the fireproof elevator door as described above. When a fire occurs, the elevator door of the elevator is closed, and each door panel is provided with a heat insulation board 20, which not only has a heat-resistant effect, but also can prevent the thick smoke and flames generated by the fire from entering the elevator running track compartment, thereby preventing the flame or thick smoke from spreading to other floors through the elevator door, effectively preventing the fire from expanding, increasing the escape time of residents, and reducing the personal and property losses of residents.

[0040] In summary, the technical solution of this application has the following beneficial effects:

[0041] 1. The present application arranges an insulation board in the installation base plate of the door panel for fire prevention and heat insulation. Compared with the prior art in which the insulation board has only one longitudinal reinforcement rib, the present application arranges insulation board supports on both sides of the installation base plate inwardly, so that the insulation board is placed in the space formed by the insulation board supports on both sides, the middle reinforcement rib and the installation base plate, so that the insulation board has a three-reinforcement rib structure. Compared with the existing products, the door strength is significantly improved under the same door base plate thickness. The patented insulated fire door can replace the existing products with a thinner door base plate, and has the characteristics of thin door panel, good strength and low cost. At the same time, the presence of three reinforcement ribs can increase the manufacturing of the door panel, making the insulated fire door more applicable.

[0042] 2. In the present application, when the left door panel and the right door panel are closed, a maze structure is formed, which can effectively slow down the speed at which flames enter the elevator shaft and improve the fireproof and heat-insulating properties.

[0043] 3. The utility model has a simple structure and good fireproof and heat-insulating effects. The heat-insulating board is reinforced with transverse reinforcing ribs and middle vertical reinforcing ribs, so that the elevator floor door has impact resistance and ensures the safety of the elevator.

[0044] The above are merely exemplary embodiments of the present application and are not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.

Claims

1. A new type of heat-insulating fireproof elevator door, comprising a left door panel and a right door panel that are closed to each other, characterized in that: The right door panel and the left door panel both include a mounting base plate and a heat insulation plate fixed in the mounting base plate; A reinforcing rib with a rectangular cross section is provided in the middle of the inner side surface of the mounting base plate to support the heat insulation board; the left side plate of the mounting base plate is bent inwardly to connect the heat insulation board support plate to form a first tubular column with a ┻-shaped cross section, and the right side plate of the mounting base plate is bent inwardly to connect the heat insulation board support plate to form a second tubular column with a ┛-shaped cross section; The heat insulation board is placed in the space formed by the first tubular column, the reinforcing rib and the second tubular column, and the heat insulation board is fixed to the installation base plate through the side pressure plates, the upper pressure plate and the lower pressure plate on both sides; Wherein, when the left door panel and the right door panel are closed at the center line of the door opening, the first tubular column of the left door panel and the first tubular column of the right door panel form a maze structure.

2. A novel heat-insulating fireproof elevator door according to claim 1, characterized in that: The insulation board support plate is a bent plate with two layers of steps. One side of the mounting base plate is bent inwardly into two layers of steps, and the other opposite side is bent inwardly into a right angle. The bent plate and the mounting base plate are spliced ​​at two layers of stepped sides to form the first tubular column, and the bent plate and the mounting base plate are spliced ​​at right angles to form the second tubular column. The bottom layer of the bent plate and the reinforcing rib are located on the same horizontal plane, and the height of the second layer of the bent plate is adapted to the thickness of the insulation board.

3. A novel heat-insulating fireproof elevator door according to claim 2, characterized in that: The top plate of the bent plate is parallel to the inner side surface of the mounting base plate and connected to the side plate of the mounting base plate, and the bottom plate of the bent plate fits the inner side surface of the mounting base plate and is fixedly connected thereto.

4. A novel heat-insulating fireproof elevator door according to claim 3, characterized in that: The bending plate and the mounting base plate are fixedly connected by riveting, welding or bonding.

5. The novel heat-insulating fireproof elevator door according to claim 1, characterized in that: A plurality of heat insulation board cross-pressing plates are evenly arranged along the board body of the heat insulation board.

6. The novel heat-insulating fireproof elevator door according to claim 1, characterized in that: A side baffle is installed on the side of the installation base plate away from the closed side, and an upper baffle is installed on the top side of the installation base plate.

7. The novel heat-insulating fireproof elevator door according to claim 1, characterized in that: Extension plates are provided on both sides of the reinforcing rib and connected to the inner side of the mounting base plate. The extension plates are fixedly connected to the mounting base plate by welding or bonding.

8. The novel heat-insulating fireproof elevator door according to claim 1, characterized in that: The tops of the left door panel and the right door panel are respectively connected to the elevator floor door device through door hanging bolts.

9. The novel heat-insulating fireproof elevator door according to claim 1, characterized in that: The heat insulation board is made of high-grade refractory material.

10. An elevator, characterized in that: Comprising a fireproof elevator door according to any one of claims 1-9.

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