A double-fold door elevator landing door device

Abstract

The application provides a double-fold door elevator landing door device, which comprises a landing door bottom plate and a linkage door assembly arranged on the landing door bottom plate; the linkage door assembly comprises a driving door hanging plate, a driven door hanging plate and a linkage assembly; the linkage assembly comprises a linkage seat, a linkage rope and two linkage wheels; the two linkage wheels are arranged on the driven door hanging plate; the linkage seat is arranged on the driving door hanging plate and located between the two linkage wheels; one end of the linkage rope is arranged on the linkage seat, and the other end of the linkage rope is arranged on the linkage seat after sequentially passing through the two linkage wheels; an abutting piece is arranged on the driven door hanging plate; and the linkage seat is located at the rear side of the abutting piece, so as to limit the abutting piece from moving in the door opening direction when the linkage rope is disabled. The application improves the reliability of the whole landing door device.

Description

Technical Field

[0001] This application relates to the field of elevator technology, specifically to a double-folding elevator landing door device. Background Technology

[0002] Bi-folding door elevators, also known as center-parting bi-folding door elevators, are a common type of elevator door system widely used due to their smaller space requirement when opening. Their characteristic feature is that both the landing door and car door consist of two panels connected by hinges, which fold and unfold like an accordion when opening and closing.

[0003] In the existing technology, such devices mostly rely on transmission components such as rope pulleys to transmit motion and force. However, in actual operation, such structures still have certain technical defects. In the event of failure of the linkage component, the driven door leaf lacks an effective movement restriction mechanism, which can easily lead to unexpected displacement and cause safety hazards. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application provides a double-folding elevator landing door device.

[0005] The specific technical solution is as follows: A double-folding elevator landing door device includes a landing door base plate and a linkage door assembly disposed on the landing door base plate; The linkage door assembly includes an active door mounting plate, a passive door mounting plate, and a linkage component. The linkage component includes a linkage seat, a linkage rope, and two linkage wheels. The two linkage wheels are disposed on the passive door mounting plate. The linkage seat is disposed on the active door mounting plate and located between the two linkage wheels. One end of the linkage rope is disposed on the linkage seat, and the other end passes around the two linkage wheels in sequence and is disposed on the linkage seat. The passive door mounting plate is provided with an abutment. The linkage seat is located behind the abutment to restrict the movement of the abutment in the door opening direction when the linkage rope fails.

[0006] In one embodiment, the driven door mounting plate is provided with a first mounting bracket and a second mounting bracket, and the two linkage wheels are respectively mounted on the first mounting bracket and the second mounting bracket; The first mounting bracket extends from the driven door mounting plate to the active door mounting plate, and the abutment is disposed on the first mounting bracket.

[0007] In one embodiment, the abutment member is provided with a hook-shaped portion, which faces the linkage seat.

[0008] In one embodiment, the bottom plate of the landing door is provided with a first guide rail and a second guide rail, the active door hanging plate is slidably disposed on the first guide rail, and the passive door hanging plate is slidably disposed on the second guide rail; A first limiting member is provided on the bottom plate of the landing door, the first limiting member being disposed adjacent to the first guide rail, for limiting the maximum displacement of the active door hanging plate in the closing direction; and / or, a second limiting member is provided on the bottom plate of the landing door, the second limiting member being disposed adjacent to the second guide rail, for limiting the maximum displacement of the driven door hanging plate in the closing direction.

[0009] In one embodiment, two end sealing plates are provided on the bottom plate of the landing door, and the two end sealing plates are respectively located at the left and right ends of the bottom plate of the landing door; The end sealing plate includes a first support portion, a second support portion, and a third support portion disposed on different sides of the main body. The first support portion and the second support portion are disposed opposite to each other. The first support portion is disposed on the bottom plate of the landing door, the first guide rail is disposed on the second support portion, and the third support portion is disposed at the upper end of the bottom plate of the landing door.

[0010] In one embodiment, the lower end of the door bottom plate is bent to form the second guide rail.

[0011] In one embodiment, the active door mounting plate is provided with a first anti-detachment structure, and the first guide rail is located inside the first anti-detachment structure; The driven door mounting plate is provided with a second anti-detachment structure, and the second guide rail is located inside the second anti-detachment structure.

[0012] In one embodiment, the bottom end of the active door hanging plate is bent to form a first door hanging part, and a first reinforcing rib is provided between the first door hanging part and the active door hanging plate; And / or, the bottom end of the driven door hanging plate is bent to form a second door hanging part, and a second reinforcing rib is provided between the second door hanging part and the driven door hanging plate.

[0013] In one embodiment, the double-folding elevator landing door device further includes a forced closing component, the active door mounting plate is provided with a first mounting position on the active door mounting plate body, the side of the active door mounting plate is provided with an extension member, the extension member is provided with a second mounting position, and the forced closing component is detachably mounted on one of the first mounting position and the second mounting position.

[0014] In one embodiment, the number of the linkage door components is two, namely a first linkage door component and a second linkage door component; The active door mounting plate of the first linkage door assembly and the active door mounting plate of the second linkage door assembly are connected by a follower assembly. The active door mounting plate of the first linkage door assembly drives the active door mounting plate of the second linkage door assembly to move through the follower assembly.

[0015] This application has at least the following beneficial effects: This application provides a double-folding elevator landing door device, including a landing door base plate and a linkage door assembly disposed on the landing door base plate; the linkage door assembly includes an active door mounting plate, a passive door mounting plate, and a linkage component, the linkage component including a linkage seat, a linkage rope, and two linkage wheels, the two linkage wheels being disposed on the passive door mounting plate, the linkage seat being disposed on the active door mounting plate and located between the two linkage wheels, one end of the linkage rope being disposed on the linkage seat, and the other end being disposed on the linkage seat after passing through the two linkage wheels in sequence, the passive door mounting plate being provided with an abutment, the linkage seat being located behind the abutment to restrict the movement of the abutment in the door opening direction when the linkage rope fails.

[0016] The double-folding elevator landing door device provided in this application, by setting up a linkage assembly including a linkage seat, linkage rope, and linkage wheel, and cooperating with an abutment member located on the driven door mounting plate, not only achieves stable linkage between the driving door and the driven door, but also further enhances the safety and reliability of the elevator landing door device under abnormal operating conditions. Specifically, in the event of linkage rope breakage or other transmission failure, because the linkage seat is located on the rear side and the abutment member is on the rear side, it can effectively limit the continued movement of the driven door mounting plate in the opening direction, thereby preventing safety hazards such as door leaf misalignment, collision, or abnormal gaps caused by the loss of control of the driven door. This application not only improves the passive protection capability of the landing door device in the event of transmission failure, but also enhances the stability of the entire elevator operation and passenger safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the double-folding elevator landing door device provided in this embodiment. Figure 1 ; Figure 2 for Figure 1 A magnified view of a portion of region A in the middle; Figure 3 for Figure 1 A magnified view of a portion of region B in the middle; Figure 4 for Figure 1 A magnified view of a portion of region C in the middle; Figure 5 for Figure 1 A magnified view of a portion of region D in the middle; Figure 6 A schematic diagram of the overall structure of the double-folding elevator landing door device provided in this embodiment. Figure 2 ; Figure 7 for Figure 6 A magnified view of a portion of region E in the middle; Figure 8 A schematic diagram of the overall structure of the double-folding elevator landing door device provided in this embodiment. Figure 3 ; Figure 9 for Figure 8 Schematic diagram of the cross section of line AA; Figure 10 for Figure 8 Schematic diagram of the cross section of the middle BB line; Figure 11 A schematic diagram of the overall structure of the double-folding elevator landing door device provided in this embodiment. Figure 4 ; Figure 12 for Figure 11 A magnified view of a portion of region F in the middle.

[0019] Figure label: 1-Floor door bottom plate; 2-Linked door assembly; 3-Forced closing assembly; 4-First linked door assembly; 5-Second linked door assembly; 6-Follow-up assembly; 11-First guide rail; 12-Second guide rail; 13-First limiting component; 14-Second limiting component; 15-End sealing plate; 21-Active door hanging plate; 22-Driven door hanging plate; 23-Linked assembly; 151-Main body; 152-First bearing part; 153-Second bearing part; 154-Third bearing part; 212-First door hanging part; 2 13-First reinforcing rib; 214-First mounting position; 215-Extension; 216-Second mounting position; 221-Abutting part; 222-First mounting bracket; 223-Second mounting bracket; 225-Second door hanger; 226-Second reinforcing rib; 231-Linkage seat; 232-Linkage rope; 233-Linkage wheel; 2111-First anti-detachment hook; 2112-Second anti-detachment hook; 2211-Hook-shaped part; 2241-Third anti-detachment hook; 2242-Anti-detachment ball; X-Door opening direction. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] like Figures 1 to 12 As shown, this embodiment provides a double-folding elevator landing door device, including a landing door base plate 1 and a linkage door assembly 2 disposed on the landing door base plate 1; the linkage door assembly 2 includes an active door mounting plate 21, a driven door mounting plate 22 and a linkage component 23, the linkage component 23 includes a linkage seat 231, a linkage rope 232 and two linkage wheels 233, the two linkage wheels 233 are disposed on the driven door mounting plate 22, the linkage seat 231 is disposed on the active door mounting plate 21 and located between the two linkage wheels 233, one end of the linkage rope 232 is disposed on the linkage seat 231, and the other end passes through the two linkage wheels 233 in sequence and is disposed on the linkage seat 231, the driven door mounting plate 22 is provided with an abutment 221, and the linkage seat 231 is located behind the abutment 221 to restrict the abutment 221 from moving in the door opening direction X when the linkage rope 232 fails.

[0024] Specifically, in the door system, the direction closer to the closing position is the front side, and the direction farther from the closing position is the rear side. That is, in the closing direction, the linkage seat 231 is located behind the abutment 221.

[0025] The double-folding elevator landing door device provided in this embodiment, by setting up a linkage assembly 23 including a linkage seat 231, a linkage rope 232, and a linkage wheel 233, and cooperating with the abutment member 221 provided on the driven door mounting plate 22, not only achieves stable linkage between the driving door and the driven door, but also further enhances the safety and reliability of the elevator landing door device under abnormal operating conditions. Specifically, in the event of a breakage of the linkage rope 232 or other transmission failures, since the linkage seat 231 is located behind the abutment member 221, it can effectively limit the continued movement of the driven door mounting plate 22 in the opening direction, thereby preventing safety hazards such as door leaf misalignment, collision, or abnormal gaps caused by the loss of control of the driven door. This embodiment not only improves the passive protection capability of the landing door device in the event of transmission failure, but also enhances the stability of the entire elevator operation and passenger safety.

[0026] like Figures 1 to 5 As shown, in one embodiment, the driven door mounting plate 22 is provided with a first mounting bracket 222 and a second mounting bracket 223, and two linkage wheels 233 are respectively provided on the first mounting bracket 222 and the second mounting bracket 223; the distance between the first mounting bracket 222 and the active door mounting plate 21 is less than the distance between the second mounting bracket 223 and the active door mounting plate 21, and the first mounting bracket 222 extends from the driven door mounting plate 22 to the active door mounting plate 21 and passes over the linkage seat 231, so that the linkage seat 231 is located between the two linkage wheels 233, and the abutment member 221 is provided on the first mounting bracket 222.

[0027] In this embodiment, two linkage wheels 233 are respectively mounted by setting a first mounting bracket 222 and a second mounting bracket 223. The first mounting bracket 222 extends from the driven door plate 22 to the driving door plate 21 and is used to mount the abutment member 221. This provides a stable and precise mounting reference for the linkage wheel 233 and the abutment member 221, ensuring the accuracy of the transmission path of the linkage rope 232 and the reliability of the abutment relationship between the linkage seat 231 and the abutment member 221, and avoiding transmission failure caused by component shaking or displacement. Secondly, by integrating the abutment member 221 and a linkage wheel 233 onto the first mounting bracket 222, the overall structure of the driven door plate 22 is simplified, facilitating the positioning and assembly of each component, and improving production efficiency and assembly accuracy.

[0028] like Figures 1 to 5 As shown, in one embodiment, the abutment 221 is provided with a hook-shaped portion 2211, which faces the linkage seat 231. In this embodiment, when the abutment 221 moves forward and abuts the linkage seat 231, the linkage seat 231 can stably contact the hook-shaped portion 2211 to restrict the movement of the abutment 221.

[0029] like Figures 1 to 5As shown, in one embodiment, a first guide rail 11 and a second guide rail 12 are provided on the bottom plate 1 of the door, the active door hanging plate 21 is slidably disposed on the first guide rail 11, and the driven door hanging plate 22 is slidably disposed on the second guide rail 12. A first limiting member 13 is provided on the bottom plate 1 of the landing door, which is located adjacent to the first guide rail 11 and is used to limit the maximum displacement of the active door hanging plate 21 in the closing direction; and / or, a second limiting member 14 is provided on the bottom plate 1 of the landing door, which is located adjacent to the second guide rail 12 and is used to limit the maximum displacement of the driven door hanging plate 22 in the closing direction.

[0030] Specifically, a buffer pad is provided on the first limiting member 13, which is used to contact the active door mounting plate 21.

[0031] Specifically, a buffer ball is provided on the second limiting member 14, which is used to contact the passive door.

[0032] This embodiment constructs a mechanical limiting structure by setting a first limiting member 13 and a second limiting member 14, ensuring that the active door hanging plate 21 and the driven door hanging plate 22 can accurately reach their positions when closed and reliably cooperate with the door lock device. Compared with the electronic sensor limiting structure, the mechanical limiting structure set in this embodiment simplifies the structure of the device, reduces production costs, and eliminates the risk of false signals or failures, further improving the reliability of the device.

[0033] like Figures 6 to 7 As shown, in one embodiment, two end sealing plates 15 are provided on the bottom plate 1 of the door, and the two end sealing plates 15 are respectively located at the left and right ends of the bottom plate 1 of the door; The end sealing plate 15 includes a main body 151 with a first support portion 152, a second support portion 153, and a third support portion 154 disposed on different sides of the main body 151. The first support portion 152 and the second support portion 153 are disposed opposite to each other. The first support portion 152 is disposed on the bottom plate 1 of the landing door, the first guide rail 11 is disposed on the second support portion 153, and the third support portion 154 is disposed at the upper end of the bottom plate 1 of the landing door.

[0034] In this embodiment, the first support part 152 is disposed on the landing door bottom plate 1, and the third support part 154 is disposed on the upper end of the landing door bottom plate 1, achieving double-sided contact. This can more effectively resist the vibration and torque generated during the operation of the landing door, preventing the landing door bottom plate 1 and the end sealing plate 15 from loosening or deforming, and greatly enhancing the connection rigidity and stability between the end sealing plate 15 and the landing door bottom plate 1. At the same time, it makes the installation of the first guide rail 11 more stable, thereby indirectly improving the smoothness of the operation of the active door hanging plate 21.

[0035] like Figures 8 to 10 As shown, in one embodiment, the lower end of the floor door bottom plate 1 is bent to form a second guide rail 12.

[0036] In this embodiment, the second guide rail 12 is integrally formed with the bottom plate 1 of the door, eliminating the need for additional independent guide rail installation. This significantly reduces the number of parts and assembly steps, thereby effectively lowering material and manufacturing costs. Furthermore, the integrally formed structure avoids loosening or installation errors that may occur due to welding or bolted connections, improving the positioning accuracy and long-term reliability of the second guide rail 12, resulting in a more compact and robust structure.

[0037] like Figures 8 to 10 As shown, in one embodiment, the active door mounting plate 21 is provided with a first anti-detachment structure, and the first guide rail 11 is located within the first anti-detachment structure. Specifically, the first anti-detachment structure includes a first anti-detachment hook 2111 and a second anti-detachment hook 2112, which are spaced apart along the upper and lower sides of the first guide rail 11 to confine the first guide rail 11 between the first anti-detachment hook 2111 and the second anti-detachment hook 2112.

[0038] The driven door mounting plate 22 is provided with a second anti-detachment structure, and the second guide rail 12 is located within the second anti-detachment structure. Specifically, the second anti-detachment structure includes a third anti-detachment hook 2241 and an anti-detachment ball 2242, which are spaced apart along the upper and lower sides of the second guide rail 12 to confine the second guide rail 12 between the third anti-detachment hook 2241 and the anti-detachment ball 2242.

[0039] This application addresses the risk of derailment that may occur when the door is subjected to unexpected external forces (such as strong winds or collisions) by setting anti-derailment structures that cover the first and second guide rails 12 on the active door mounting plate 21 and the driven door mounting plate 22, respectively. This greatly enhances the safety of the landing door device and ensures that the door remains engaged with the guide rails even under abnormal operating conditions, preventing the door from tipping over or falling.

[0040] like Figures 1 to 5 As shown, in one embodiment, the bottom end of the active door mounting plate 21 is bent to form a first door mounting portion 212, and a first reinforcing rib 213 is provided between the first door mounting portion 212 and the active door mounting plate 21. Specifically, there are multiple first reinforcing ribs 213, which are arranged sequentially.

[0041] like Figure 1 As shown, in one embodiment, the bottom end of the driven door hanging plate 22 is bent to form a second door hanging portion 225, and a second reinforcing rib 226 is provided between the second door hanging portion 225 and the driven door hanging plate 22. Specifically, there are multiple second reinforcing ribs 226, which are arranged sequentially.

[0042] This embodiment compensates for the structural weakening that may be caused by bending of the door by adding reinforcing ribs, which significantly enhances the rigidity and deformation resistance of the bottom of the door, ensuring that the door hanging part will not suffer fatigue deformation or damage during long-term load-bearing and operation, and extending the service life of the door.

[0043] like Figure 1 , Figure 5 , Figure 11 and Figure 12 As shown, in one embodiment, the double-folding elevator landing door device further includes a forced closing assembly 3. The active door mounting plate 21 is provided with a first mounting position 214 located on the body of the active door mounting plate 21. An extension 215 is provided on the side of the active door mounting plate 21. A second mounting position 216 is provided on the extension 215. The forced closing assembly 3 is detachably disposed in one of the first mounting position 214 and the second mounting position 216.

[0044] This embodiment provides a detachable forced-closing assembly 3 installation option between the first installation position 214 and the second installation position 216. Designers or installers can choose the most suitable installation position according to the specific spatial layout of different elevator shafts to avoid obstacles in the shaft or optimize the lever arm effect of the counterweight. This makes the landing door device provided in this embodiment highly flexible in configuration and adaptable to the environment, improving the market versatility of the landing door device and reducing the modification costs and time required due to unsuitable site conditions.

[0045] In one embodiment, the forced closing assembly 3 includes one of a counterweight forced closing assembly, a spring forced closing assembly, a pneumatic forced closing assembly, and a hydraulic forced closing assembly.

[0046] like Figure 12 As shown, in one embodiment, there are two linkage door components 2, namely a first linkage door component 4 and a second linkage door component 5; The active door mounting plate of the first linkage door assembly 4 and the active door mounting plate of the second linkage door assembly 5 are connected by a follower assembly 6. The active door mounting plate of the first linkage door assembly 4 drives the active door mounting plate of the second linkage door assembly 5 to move through the follower assembly 6.

[0047] In this embodiment, by setting up a follow-up component 6, the active door hanging plates of the two linkage door components 2 are connected, realizing the synchronous operation of the two sets of door components and achieving synchronous control of the two side door leaves of the center-parted double folding door.

[0048] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, and the scope of this application is determined by the scope of the appended claims.

[0049] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-folding elevator landing door device, characterized in that, Includes a landing door base plate and a linkage door assembly disposed on the landing door base plate; The linkage door assembly includes an active door mounting plate, a passive door mounting plate, and a linkage component. The linkage component includes a linkage seat, a linkage rope, and two linkage wheels. The two linkage wheels are disposed on the passive door mounting plate. The linkage seat is disposed on the active door mounting plate and located between the two linkage wheels. One end of the linkage rope is disposed on the linkage seat, and the other end passes around the two linkage wheels in sequence and is disposed on the linkage seat. The passive door mounting plate is provided with an abutment. The linkage seat is located behind the abutment to restrict the movement of the abutment in the door opening direction when the linkage rope fails.

2. The double-folding elevator landing door device according to claim 1, characterized in that, The driven door mounting plate is provided with a first mounting bracket and a second mounting bracket, and the two linkage wheels are respectively mounted on the first mounting bracket and the second mounting bracket; The first mounting bracket extends from the driven door mounting plate to the active door mounting plate, and the abutment is disposed on the first mounting bracket.

3. The double-folding elevator landing door device according to claim 1 or 2, characterized in that, The abutment is provided with a hook-shaped part, which faces the linkage seat.

4. The double-folding elevator landing door device according to claim 1, characterized in that, The bottom plate of the door is provided with a first guide rail and a second guide rail. The active door hanging plate is slidably mounted on the first guide rail, and the passive door hanging plate is slidably mounted on the second guide rail. A first limiting member is provided on the bottom plate of the landing door, the first limiting member being disposed adjacent to the first guide rail, for limiting the maximum displacement of the active door hanging plate in the closing direction; and / or, a second limiting member is provided on the bottom plate of the landing door, the second limiting member being disposed adjacent to the second guide rail, for limiting the maximum displacement of the driven door hanging plate in the closing direction.

5. The double-folding elevator landing door device according to claim 4, characterized in that, Two end sealing plates are provided on the bottom plate of the landing door, and the two end sealing plates are respectively located at the left and right ends of the bottom plate of the landing door; The end sealing plate includes a first support portion, a second support portion, and a third support portion disposed on different sides of the main body. The first support portion and the second support portion are disposed opposite to each other. The first support portion is disposed on the bottom plate of the landing door, the first guide rail is disposed on the second support portion, and the third support portion is disposed at the upper end of the bottom plate of the landing door.

6. The double-folding elevator landing door device according to claim 4, characterized in that, The lower end of the bottom plate of the door is bent to form the second guide rail.

7. The double-folding elevator landing door device according to claim 4, characterized in that, The active door mounting plate is provided with a first anti-detachment structure, and the first guide rail is located inside the first anti-detachment structure; The driven door mounting plate is provided with a second anti-detachment structure, and the second guide rail is located inside the second anti-detachment structure.

8. The double-folding elevator landing door device according to claim 1, characterized in that, The bottom end of the active door hanging plate is bent to form a first door hanging part, and a first reinforcing rib is provided between the first door hanging part and the active door hanging plate; And / or, the bottom end of the driven door hanging plate is bent to form a second door hanging part, and a second reinforcing rib is provided between the second door hanging part and the driven door hanging plate.

9. The double-folding elevator landing door device according to claim 1, characterized in that, The double-folding elevator landing door device also includes a forced closing component. The active door mounting plate is provided with a first mounting position on the active door mounting plate body. An extension is provided on the side of the active door mounting plate. A second mounting position is provided on the extension. The forced closing component is detachably mounted on one of the first mounting position and the second mounting position.

10. The double-folding elevator landing door device according to claim 1, characterized in that, The number of the linkage door components is two, namely a first linkage door component and a second linkage door component; The active door mounting plate of the first linkage door assembly and the active door mounting plate of the second linkage door assembly are connected by a follower assembly. The active door mounting plate of the first linkage door assembly drives the active door mounting plate of the second linkage door assembly to move through the follower assembly.

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