Elevator door guide device and elevator

Abstract

The present invention relates to the field of elevator technology, specifically providing an elevator door guide device and an elevator, comprising a load-bearing member, a guide member, and an anti-bending connector. At least three guide members are provided and arranged sequentially along a first direction. The guide members are provided with a connecting surface and a mounting surface on either side of the guide member along the first direction, respectively. The side of the guide member corresponding to the mounting surface is used to mount a door body. The guide member at the first end in the first direction is connected to the load-bearing member via a connecting surface. At least some of the remaining guide members are configured as guide groups, each guide group comprising two guide members, with the connecting surfaces of the two guide members arranged adjacently. The anti-bending connector connects the load-bearing member and the guide group, respectively, and is used to provide an anti-bending force for the guide group. While ensuring high space utilization, the present invention effectively increases the strength and stability of the guide member, preventing bending and sinking.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, in particular to an elevator door guide device and an elevator. Background Art

[0002] Elevator doors are essential components of an elevator and are divided into car doors and landing doors. The car door is installed at the entrance and exit of the elevator car, while the landing doors are installed at the entrance and exit of each floor in the hoistway. While the elevator car is in motion, the car door and landing doors are closed to ensure passenger safety. When the elevator car is parked, the car door and corresponding landing doors open to allow passengers to enter and exit. Car doors and landing doors typically open and close horizontally. To ensure stability, guide rails are often provided to guide the movement of the doors. However, existing elevator guide rails often struggle to achieve both high space utilization and high strength. Summary of the Invention

[0003] The elevator door guide device and elevator provided by the embodiments of the present invention at least solve the problem that existing elevator guide rails are difficult to strike a balance between space utilization and strength. While ensuring high space utilization, they effectively increase the strength and stability of the guide parts and avoid bending and sinking.

[0004] In the first aspect, the present invention provides an elevator door guide device, comprising a bearing member; at least three guide members arranged in sequence along a first direction, the guide members being respectively provided with a connecting surface and an installation surface on both sides along the first direction, and the side of the guide member corresponding to the installation surface is used for setting the door body; the guide member at the head end of the first direction is connected to the bearing member through the connecting surface; at least part of the remaining guide members are arranged as a guide group, each guide group comprising two guide members, and the connecting surfaces of the two guide members are arranged adjacent to each other; an anti-bending connector, respectively connecting the bearing member and the guide group, and the anti-bending connector is used to provide an anti-bending force for the guide group.

[0005] In one embodiment of the present invention, the support member includes: a first support member, which is arranged on one side of the guide member along the second direction; a second support member, which is connected to the first support member; the second support member is arranged on one side of the guide member along the first direction, and the second support member is connected to the connecting surface of the guide member at the head end of the first direction; wherein, at least one of the anti-bending connectors is respectively connected to the guide group and the first support member, or / and, at least one of the anti-bending connectors is respectively connected to the guide group and the second support member.

[0006] In one embodiment of the present invention, along the third direction, at least one of the two ends of the second carrier is provided with a first connecting hole, and each of the guide members is provided with a second connecting hole corresponding to the first connecting hole; the elevator door guide device also includes: a first fixing member, the first fixing member is respectively connected to the first connecting hole and the second connecting hole; a first abutment member is provided on the first fixing member; at least one first abutment member is provided, and when multiple first abutment members are provided, multiple first abutment members are sequentially provided along the extension direction of the first fixing member, each first abutment member is provided between two guide members, and the first abutment members respectively abut against the corresponding guide members.

[0007] In one embodiment of the present invention, the carrier also includes: a third carrier, which is arranged on one side of the guide member along the third direction, and the third carrier is connected to the first carrier; the third carrier is provided with a first connecting portion at one end away from the second carrier along the first direction, and the first connecting portion is connected to the guide member at the end of the first direction.

[0008] In one embodiment of the present invention, a plurality of the anti-bending connectors are provided, and at least part of the plurality of the anti-bending connectors are provided as an anti-bending connection group. Each of the anti-bending connection groups includes a plurality of the anti-bending connectors arranged in sequence along a third direction, and the anti-bending connectors in each of the anti-bending connection groups are connected to the same guide group.

[0009] In one embodiment of the present invention, the anti-bending connector includes: a first connector, which is connected to the bearing member; a second connector, one end of which is connected to the first connector; and a third connector, which is respectively connected to the other end of the second connector and the guide group; wherein, there is a first angle between the extension direction of the first connector and the extension direction of the second connector, or / and there is a second angle between the extension direction of the second connector and the extension direction of the third connector.

[0010] In one embodiment of the present invention, a third connecting hole is provided on the third connecting body, and a fourth connecting hole corresponding to the third connecting hole is provided on the guide member; the elevator door guide device also includes: a second fixing member, the second fixing member is respectively connected to the third connecting hole and the fourth connecting hole; a second abutting member, provided on the second fixing member, the second abutting member is provided between the two guide members, and the second abutting member abuts against the corresponding guide members respectively.

[0011] In a second aspect, the present invention further provides an elevator, comprising an elevator door guide device as described in any one of the above items, and a plurality of door bodies, wherein the door bodies are movably connected to the corresponding guide members.

[0012] In one embodiment of the present invention, two elevator door guide devices are provided, and the two elevator door guide devices are arranged in sequence along the third direction; the supporting member includes a fourth supporting body, and the fourth supporting body is arranged on one side of the guide member along the third direction, and a second connecting portion is provided on the fourth supporting body, and the two elevator door guide devices are detachably connected through the second connecting portion.

[0013] In one embodiment of the present invention, the door body includes a connected door panel and a hanging plate, and the hanging plate is movably connected to the corresponding guide member; the elevator also includes a plurality of linkage wheels, and along the second direction, the plurality of linkage wheels are respectively arranged on both sides of the guide member, and the linkage wheels are connected to the corresponding hanging plates; the axial direction of the rotating shaft of the linkage wheel is parallel to the second direction; the linkage wheel is used to set a linkage rope, and the linkage rope is used to connect the hanging plate to drive the corresponding hanging plate to move synchronously; wherein, the linkage wheel and the linkage rope are both staggered with the anti-bending connector.

[0014] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0015] The elevator door guide device and elevator described herein utilize a bending-resistant connector to connect the guide assembly carrier, effectively strengthening the guide assembly and preventing bending and sinking of the guide members within the guide assembly, thereby preventing sinking and scraping of the door body on the guide members. The overall structure is highly stable, reliable, and safe. The elevator door guide device described herein is particularly suitable for center-split, tri-fold elevator doors, effectively strengthening the medium-speed and high-speed guide rails while ensuring high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without inventive work. In the drawings:

[0017] Figure 1 This is one of the structural diagrams of conventional elevator door guide rails in the prior art.

[0018] Figure 2 This is the second structural diagram of a conventional elevator door guide rail in the prior art.

[0019] Figure 3 This is one of the partial structural diagrams of the elevator door guide device in the preferred embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of a guide member in a preferred embodiment of the present invention.

[0021] Figure 5 This is one of the cross-sectional structural diagrams of the elevator door guide device in the preferred embodiment of the present invention.

[0022] Figure 6 This is the second schematic cross-sectional view of the elevator door guide device in the preferred embodiment of the present invention.

[0023] Figure 7 It is a schematic cross-sectional view of the bending-resistant connector in a preferred embodiment of the present invention.

[0024] Figure 8 This is the second partial structural diagram of the elevator door guide device in the preferred embodiment of the present invention.

[0025] Figure 9 It is a schematic cross-sectional structural diagram of a guide member in a preferred embodiment of the present invention.

[0026] Figure 10 This is the third partial structural diagram of the elevator door guide device in the preferred embodiment of the present invention.

[0027] Figure 11 This is one of the structural diagrams of the elevator door guide device in the preferred embodiment of the present invention.

[0028] Figure 12 This is the fourth partial structural diagram of the elevator door guide device in the preferred embodiment of the present invention.

[0029] Figure 13 This is the second structural diagram of the elevator door guide device in the preferred embodiment of the present invention.

[0030] Figure 14 It is a structural schematic diagram of the linkage wheel and the guide member in a preferred embodiment of the present invention.

[0031] Figure 15 It is a structural schematic diagram of the linkage wheel and linkage rope in a preferred embodiment of the present invention.

[0032] The above drawings include the following reference numerals:

[0033] 01. Door head back panel; 02. Guide rail A; 03. Guide rail B; 04. Guide rail C; 05. Reinforcement rail; 06. Reinforcement bracket; D1. First direction; D2. Second direction; D3. Third direction; 10. Carrier; 11. First carrier; 12. Second carrier; 121. Avoidance portion; 1211. First connecting hole; 13. Third carrier; 131. First connecting portion; 14. Fourth carrier; 141. Second connecting portion; 142. Carrier connecting component; 20. Guide group; 21. Guide member; 211. Connecting surface; 212. Mounting surface; 213. Second connecting hole; 214. Fourth connecting hole; 30. Anti-bending connection group ;31. Anti-bending connector;311. First connector;312. Second connector;313. Third connector;3131. Third connecting hole;411. First fixing member;412. First abutting member;421. Second fixing member;422. Second abutting member;51. Hanging plate;521. Fast hanging plate;522. Medium-speed hanging plate;523. Slow hanging plate;61. Linkage wheel;611. Wheel A;612. Wheel B;613. Wheel C;614. Wheel D;62. Linkage rope;621. Rope A;6211. First rope portion;6212. Second rope portion;622. Rope B;6221. Third rope portion;6222. Fourth rope portion. DETAILED DESCRIPTION

[0034] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that an elevator is a device used for vertical transportation. It is widely used in various buildings and provides convenience for people to move up and down the stairs.

[0036] Elevator doors are a crucial component of an elevator. They primarily consist of landing doors at the entrances and exits of the hoistway floors, and car doors on the elevator car. While the elevator car is moving, the car door and landing doors are closed to ensure passenger safety. When the elevator car is stopped, the car door and corresponding landing doors open to allow passengers to enter and exit.

[0037] Conventional elevator doors typically open and close horizontally. Depending on the direction of door movement, elevator doors can be categorized as side-opening or center-opening. Side-opening doors move in the same direction when opening and closing. Center-opening doors move in opposite directions when opening and closing.

[0038] The number of door bodies varies between elevator doors. Conventional elevator doors mostly use a bi-fold or tri-fold structure. For example, a center-split tri-fold elevator door has six door bodies, divided into two groups of three.

[0039] To ensure door stability during movement, guide rails are typically installed to provide guidance. Taking a center-folding elevator door as an example, there are three guide rails, each with two doors. Depending on the distance traveled by the doors on the guide rails, the guide rails can be categorized as Guide A02, Guide B03, and Guide C04. The two doors on Guide C04 come into contact when closing.

[0040] However, the strength of the guide rail is limited. When a heavy door is installed on a weak guide rail, the stress on the guide rail exceeds the yield strength of the guide rail material, causing the guide rail to plastically deform, bend, and sink.

[0041] When the guide rail bends and sinks, the door mounted on the rail will vibrate and jump during opening and closing, reducing stability. Furthermore, the bending and sinking of the guide rail will cause the door to sink, causing it to scrape against the sill below. This not only damages the door and sill, shortening the service life of the elevator door, but also poses a safety hazard.

[0042] In order to prevent the guide rails from bending and sinking, it is usually necessary to strengthen the guide rails. However, the existing reinforcement solutions for elevator guide rails often find it difficult to balance the strength of the guide rails with the overall space utilization.

[0043] Continuing with the example of a center-split, tri-fold elevator door, in this case, Guide Rail A 02, Guide Rail B 03, and Guide Rail C 04 are sequentially arranged along one direction perpendicular to the guide rail's extension. Guide Rail A 02 serves as the slow-speed guide rail, Guide Rail B 03 as the medium-speed guide rail, and Guide Rail C 04 as the fast-speed guide rail. Typically, Guide Rail A 02 in a center-split, tri-fold elevator door is directly fixed, for example, by being fixedly connected to the door head and back panel 01.

[0044] Since guide rail A 02 is a slow guide rail, the stroke of the door body set on guide rail A 02 is relatively short, so a connecting structure can be set at a position outside the stroke of the door body corresponding to guide rail A 02 to fixedly connect guide rail B 03 with guide rail A 02.

[0045] However, due to the relatively long travel of the upper door body on Guide Rail B03, it is difficult to secure Guide Rail C04 in the same manner. Guide Rail C04 is relatively suspended compared to the other two guide rails. Without effective reinforcement, Guide Rail C04 of the center-folding elevator door is prone to bending and sinking, affecting stability, safety, and the service life of the equipment.

[0046] Engineers also made improvements to the guide rail C04 for the center-folding, tri-folding elevator doors, including using dual fast rails and staggering the reinforcement rails 05 and fast rails to strengthen the guide rail C04. While this strengthened the rails to some extent, it also compromised space efficiency, resulting in a larger elevator. Large elevator doors often cannot be installed in confined spaces.

[0047] Reference Figure 1 As shown, Figure 1 The existing double-fast guide rail and reinforced rail structure is demonstrated. Specifically, its guide rail B 03 and guide rail A 02 are still connected according to the conventional structure. At the guide rail C 04, on the one hand, a reinforced rail 05 is set, and the two ends of the reinforced rail 05 in the length direction are connected to the guide rail B 03. On the other hand, two guide rails C 04 are set on the reinforced rail 05 in sequence along the height direction to achieve thickening, thereby strengthening the guide rail and preventing it from bending and sinking. However, although this structure increases the strength, the size in the height direction is relatively large, and the space utilization rate is low. At the same time, although the guide rail C 04 has been strengthened to a certain extent, it is actually still suspended, and the strength increase effect is limited. In addition, the strengthening effect of the guide rail B 03 is limited.

[0048] Reference Figure 2 As shown, Figure 2 The present invention shows an existing fast guide rail misalignment structure. Specifically, its guide rail B 03 and guide rail A 02 are still connected according to the conventional structure, while guide rail C 04 is misaligned with the other guide rails in the height direction. In the case of guide rail C 04 misalignment, the space above guide rail B 03 and guide rail A 02 can be used to set up a reinforcement bracket 06 to connect guide rail C 04 for reinforcement. However, although this structure increases strength, its height dimension is relatively large, and the space utilization rate is low. In addition, the reinforcement effect of guide rail B 03 is limited.

[0049] To solve the above problems, refer to Figure 3 As shown, the present invention provides an elevator door guide device, including a bearing member 10, a guide member 21 and an anti-bending connection member 31.

[0050] The bearing member 10 is used to securely mount the guide member 21. In some embodiments, the bearing member 10 can be mounted on the elevator car to provide guidance for the car door via the guide member 21. In some embodiments, the bearing member 10 can be mounted on the wall at the entrance or exit of the elevator shaft to provide guidance for the landing door via the guide member 21. How to securely mount the bearing member 10 on the elevator car or wall is well known in the art and will not be further described.

[0051] Those skilled in the art can set the shape and material of the carrier 10 according to actual needs to ensure that the carrier 10 can maintain a stable and firm connection. Preferably, the carrier 10 is set as a door head back panel.

[0052] The guide member 21 is used to position the door. After the door is mounted on the guide member 21, the door can move relative to the guide member 21, and the guide member 21 provides guidance for the movement of the door. The same guide member 21 can provide guidance for only one door or for multiple doors at the same time.

[0053] Those skilled in the art can set the specific structure of the guide member 21 according to actual needs to adapt to different door bodies. Preferably, the guide member 21 is set to be hollow along its length direction to reduce weight while increasing strength and improving bending resistance.

[0054] In the present invention, at least three guide members 21 are provided. Those skilled in the art can set the number of guide members 21 according to actual needs, such as three, four, five, etc., to adapt to the installation and guiding requirements of different numbers of door bodies.

[0055] Meanwhile, the guide members 21 are sequentially arranged along the first direction D1. When the guide members 21 are sequentially arranged along the first direction D1, those skilled in the art can adjust the guide members 21 according to actual needs.

[0056] For example, the positions of the guide members 21 are kept consistent in the height direction; or, one or more guide members 21 are staggered relative to other guide members 21 in the height direction.

[0057] Preferably, the length extension directions of the guide members 21 are parallel to each other. In some embodiments, the length extension direction of one or more guide members 21 can also have a certain angle relative to other guide members 21, as long as the angle does not affect the movement of the door body.

[0058] Preferably, the width direction of the guide member 21 is parallel to the first direction D1, the height direction of the guide member 21 is parallel to the second direction D2, and the length direction of the guide member 21 is parallel to the third direction D3. It can be understood that the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0059] Reference Figure 4 As shown, the guide member 21 is provided with a connecting surface 211 and a mounting surface 212 on both sides along the first direction D1. The connecting surface 211 is used to achieve connection, and the side of the guide member 21 corresponding to the mounting surface 212 is used to set the door body.

[0060] Typically, the door body is slidably connected to the guide member 21 via guide wheels. Exemplarily, the door body includes a detachably connected door panel and a hanging plate 51. The door panel is conventional and not shown in the figure. Along a first direction D1, the hanging plate 51 is disposed on a side of the guide member 21 corresponding to the mounting surface 212. The hanging plate 51 is provided with guide wheels for slidably connecting to the guide member 21.

[0061] In some embodiments, four guide wheels are provided, one at each corner of a rectangle. Along the second direction D2, the two guide wheels located above abut against the upper portion of the guide member 21, while the two guide wheels located below abut against the lower portion of the guide member 21.

[0062] On this basis, the hanging plate 51 can reciprocate relative to the guide member 21 along the third direction D3. To close the elevator door, the door panels on different guide members 21 are driven by the hanging plate 51 to move along the third direction D3, maintaining an offset with the door panels on other guide members 21, thereby closing the door. To open the elevator door, the door panels on different guide members 21 are driven by the hanging plate 51 to move along the third direction D3, overlapping with the door panels on other guide members 21, thereby opening the door.

[0063] Among the at least three guide members 21, the guide member 21 disposed at the head end in the first direction D1 is connected to the carrier 10 via a connection surface 211. Those skilled in the art can configure the connection method between the guide member 21 and the carrier 10 according to actual needs, such as welding or fastener connection.

[0064] It will be appreciated that if at least three guide members 21 are provided, subtracting one will leave at least two remaining. Of the remaining guide members 21, at least some are provided as guide groups 20. Each guide group 20 includes two guide members 21, with the connecting surfaces 211 of the two guide members 21 disposed adjacent to each other. Those skilled in the art will be able to adjust the spacing between the connecting surfaces 211 of the two guide members 21 in the guide group 20 according to actual needs.

[0065] For example, if the total number of guide members 21 is three or four, when one is subtracted, the remaining guide members 21 can form one guide group 20. If the total number of guide members 21 is five or six, when one is subtracted, the remaining guide members 21 can form two guide groups 20.

[0066] In the case where the guide members 21 form the guide group 20, the guide members 21 of the guide group 20 can be strengthened by the anti-bending connectors 31. Specifically, the anti-bending connectors 31 connect the bearing member 10 and the guide group 20 respectively, thereby providing an anti-bending force for the guide group 20 through the anti-bending connectors 31, thereby strengthening the guide members 21 in the guide rail group.

[0067] Those skilled in the art can set a specific bending-resistant connector 31 according to actual needs. For example, the bending-resistant connector 31 is set to a sheet metal part, a steel wire rope, etc.

[0068] When the anti-bending connector 31 is provided, the anti-bending force provided by the anti-bending connector 31 can generate a bending moment, thereby offsetting a portion of the mid-span bending moment experienced by the guide member 21 in the guide group 20. This reduces the mid-span bending moment, which would otherwise cause plastic deformation of the guide member 21, to within the yield limit of the material of the guide member 21. This effectively prevents problems such as bending and sinking caused by plastic deformation of the guide member 21. Therefore, by providing the anti-bending connector 31, the originally suspended guide member 21 can be effectively strengthened, improving the stability, reliability, and safety of the device.

[0069] Those skilled in the art can set the connection position of the anti-bending connector 31 and the guide group 20 according to actual needs, as long as the anti-bending connector 31 is prevented from interfering with the movement of the door body on the guide member 21.

[0070] Preferably, the anti-bending connector 31 is disposed between the connecting surfaces 211 of two guide members 21 in the guide group 20. In some embodiments, the anti-bending connector 31 can be connected to one of the guide members 21, and then the two guide members 21 can be connected to each other; or, the anti-bending connector 31 can be connected to the connecting surfaces 211 of the two guide members 21 respectively.

[0071] When the anti-bending connector 31 is disposed between the two connection surfaces 211 , the anti-bending connector 31 will not interfere with the door body disposed on a side of the mounting surface 212 of the guide member 21 .

[0072] It is worth noting that the movement range of the door body on different guide members 21 is different. The door body on some guide members 21 will only reciprocate within a certain range of the guide member 21 along the third direction D3 and will not move to another range. The anti-bending connector 31 can also be connected to the mounting surface 212 of the guide member 21 without affecting the movement of the door body along the guide member 21.

[0073] Those skilled in the art can adjust the number of anti-bending connectors 31 according to actual needs. For example, when the ends of the guide members 21 in the guide assembly 20 are fixed, only one anti-bending connector 31 can be provided. When the guide members 21 are relatively long, multiple anti-bending connectors 31 can be provided, for example, two to nine.

[0074] Those skilled in the art can set the connection mode between the anti-bending connector 31 and the bearing member 10 and between the anti-bending connector 31 and the guide group 20 according to actual needs, such as welding, setting fasteners, etc.

[0075] Preferably, the total number of guide members 21 is set to an odd number to ensure that when one guide member 21 is subtracted, the remaining number is an even number, so that two guide members 21 form a guide group 20. Of course, when the number of guide members 21 is set to an even number, the remaining guide members 21 that cannot form a guide group 20 can also be reinforced and fixed by the anti-bending connector 31.

[0076] Taking a tri-fold elevator door as an example, its slow-speed guide rail can be mounted on a carrier 10, and the medium-speed and fast-speed guide rails can be combined into a guide assembly 20. These two rails are reinforced by anti-bending connectors 31, making the entire assembly stable and reliable. Compared to existing designs with dual fast-speed guide rails and reinforced rails or staggered fast-speed guide rails, this design effectively reinforces the medium-speed and fast-speed guide rails while ensuring high space utilization.

[0077] In summary, the elevator door guide device of the present invention effectively strengthens the guide group 20 by connecting the guide assembly 20 and the carrier through the anti-bending connector 31, preventing the guide members 21 in the guide group 20 from bending or sinking, thereby preventing the door body from sinking or scratching on the guide members 21. The overall structure is very stable, reliable, and highly safe. The elevator door guide device of the present invention is particularly suitable for center-split tri-fold elevator doors, effectively strengthening the medium-speed and high-speed guide rails while ensuring high space utilization.

[0078] In elevators, the installation space is often limited. In order to further improve the space utilization, it is necessary to optimize the structure of the bearing member 10. Figure 5 As shown, in the elevator door guide device of the present invention, in some embodiments, the carrier 10 includes a first carrier 11 and a second carrier 12 .

[0079] Along the second direction D2, the first carrier 11 is disposed on one side of the guide member 21. It can be understood that, along the second direction D2, the door panel and the first carrier 11 are disposed on both sides of the guide member 21, respectively.

[0080] Along the first direction D1, the second carrier 12 is disposed on one side of the guide member 21. The second carrier 12 is connected to the first carrier 11 on one side and to the connection surface 211 of the guide member 21 at the beginning of the first direction D1 on the other side. Preferably, the second carrier 12 is fixedly connected to the elevator car or wall. This structure allows the carrier 10 to not only stably and securely mount the guide member 21 and, in conjunction with the anti-bending connector 31, reinforce the guide assembly 20, but also effectively reduce its own volume, improving space utilization.

[0081] Preferably, the first carrier 11 and the second carrier 12 are both configured as rectangular plate structures, with the normal vectors of the two planes being perpendicular, so as to further reduce the volume and improve space utilization.

[0082] Those skilled in the art can design the connection method between the components according to actual needs, such as threaded connection, welding, etc. Preferably, the second carrier 12 and the first carrier 11 are integrally formed.

[0083] Preferably, at least one anti-bending connector 31 is connected to the guide group 20 and the first carrier 11. Because the first carrier 11 is located on the side of the guide member 21 along the second direction D2, when the anti-bending connector 31 is connected to the first carrier 11, it can extend directly along the second direction D2, thereby connecting and reinforcing the guide group 20 and reducing the possibility of interference with other equipment components in the elevator. This eliminates the need for excessive bending of the anti-bending connector 31, effectively reducing manufacturing costs.

[0084] In some embodiments, at least one anti-bending connector 31 can be connected to the guide group 20 and the second carrier 12. When the anti-bending connector 31 is connected to the second carrier 12, care should be taken to avoid interference between the anti-bending connector 31 and other equipment components in the elevator.

[0085] Of course, when multiple anti-bending connectors 31 are provided, some of the anti-bending connectors 31 can be connected to the guide group 20 and the first carrier 11 respectively, and the other part of the anti-bending connectors 31 can be connected to the guide group 20 and the second carrier 12 respectively.

[0086] Further, refer to Figure 7 and Figure 8 As shown, in some embodiments of the elevator door guide device of the present invention, along the third direction D3, at least one of the ends of the second carrier 12 is provided with a first connection hole 1211, and each guide member 21 is provided with a second connection hole 213 corresponding to the first connection hole 1211. The elevator door guide device also includes a first fixing member 411 and a first abutting member 412.

[0087] The first fixing member 411 is respectively connected to the first connection hole 1211 and the second connection hole 213. Preferably, the first fixing member 411 includes a bolt and a nut. The bolt is inserted into the first connection hole 1211 and the second connection hole 213 and cooperates with the nut to achieve a fixed connection between the second carrier 12 and each guide member 21.

[0088] The first abutting member 412 is provided on the first fixing member 411. At least one first abutting member 412 is provided. If multiple first abutting members 412 are provided, the multiple first abutting members 412 are sequentially arranged along the extending direction of the first fixing member 411. Each first abutting member 412 is provided between two guide members 21, and the first abutting member 412 abuts against the two guide members 21 at its ends.

[0089] By setting up this structure, each guide member 21 can be effectively fixed without interfering with the movement of the door body relative to the guide member 21, and the guide member 21 can be strengthened in conjunction with the anti-bending connector 31, so that the stability, reliability and safety of the device are further improved.

[0090] Preferably, the second carrier 12 is provided with an evacuation portion 121 , and the first connection hole 1211 is provided on the evacuation portion 121 so as to evade the first fixing member 411 through the evacuation portion 121 to provide an accommodation space for the first fixing member 411 .

[0091] Preferably, the avoidance portion 121 is configured as a avoidance groove extending parallel to the third direction D3, formed by bending the second carrier 12. Furthermore, the avoidance portion 121 protrudes toward the guide assembly 20 relative to the second carrier 12. This structure maintains a certain distance between the hanging plate 51 on the guide member 21 at the beginning of the first direction D1 and the second carrier 12 in the first direction D1, preventing interference between the two.

[0092] Preferably, a plurality of other connection holes are further provided on the avoidance portion 121 , and bolts are provided in these connection holes to achieve a detachable connection between the second carrier 12 and the guide member 21 at the head end of the first direction D1 .

[0093] It is worth noting that in some embodiments, corresponding connecting holes can be set at other positions of the guide member 21 and the second carrier 12 along the third direction D3, and corresponding fixing members and abutment members can be set to achieve reinforcement, as long as the fixing members and abutment members are prevented from interfering with the moving door body.

[0094] For example, in a tri-fold elevator door, the door travel on both the slow and medium-speed guide rails is not full, with the travel on the slow guide rail being shorter than that on the medium-speed guide rail. Therefore, connecting holes, fixings, and abutments can be provided on both sides of the door body outside the travel of the medium-speed guide rail to provide clearance for the door while also providing reinforcement.

[0095] Further, refer to Figure 8 and Figure 9 As shown, in the elevator door guide device of the present invention, in some embodiments, the carrier 10 further includes a third carrier 13. Along the third direction D3, the third carrier 13 is disposed on one side of the guide member 21 and connected to the first carrier 11.

[0096] Those skilled in the art can set the connection method between the third carrier 13 and the first carrier 11 according to actual needs, such as welding, threaded connection, etc. Of course, in some other embodiments, the third carrier 13 can also be connected to the second carrier 12, or the third carrier 13 can be connected to the first carrier 11 and the second carrier 12 respectively.

[0097] Preferably, the third carrier 13 is configured as a rectangular plate-shaped structure, and the normal vector of its plane is perpendicular to the normal vectors of the planes of the other two carriers.

[0098] The third carrier 13 has a first connecting portion 131 at one end thereof, which is away from the second carrier 12 along the first direction D1. The first connecting portion 131 is connected to the guide member 21 at the end of the first direction D1. This structure can further strengthen the guide member 21, improving the stability, reliability, and safety of the device.

[0099] Those skilled in the art can configure the connection method between the first connection portion 131 and the guide member 21 at the end of the first direction D1 according to actual needs.

[0100] Exemplarily, the first connecting portion 131 is configured as a sheet metal that extends along the third direction D3 toward one side of the guide member 21. The sheet metal is provided with connection holes. The first fixing member 411 connects to the first connection hole 1211 and the second connection hole 213 while also connecting to the connection hole of the sheet metal. Simultaneously, one side surface of the sheet metal along the first direction D1 abuts the guide member 21 at the end of the first direction D1, and the other side surface abuts the first abutting member 412.

[0101] In some embodiments, a guide wheel can be provided on the third carrier 13 to cooperate with the rope to form a pulley structure to realize the linkage opening and closing of the door body.

[0102] Reference Figure 10 As shown, in some embodiments of the elevator door guide device of the present invention, a plurality of anti-bending connectors 31 are provided, and at least some of the plurality of anti-bending connectors 31 are provided as anti-bending connection groups 30. Each anti-bending connection group 30 includes a plurality of anti-bending connectors 31 sequentially spaced along the third direction D3, and the anti-bending connectors 31 in each anti-bending connection group 30 are connected to the same guide group 20.

[0103] By setting up this structure, the guide group 20 can be effectively strengthened, and the guide member 21 of the guide group 20 can be prevented from bending or sinking, thereby avoiding the problem of sinking or scratching of the door body on the guide member 21. The stability, reliability and safety of the device are improved.

[0104] Those skilled in the art can set the specific number of the anti-bending connectors 31 in each anti-bending connection group 30 according to actual needs, such as two, three, four, five, etc., and the present invention is not limited to this.

[0105] In some embodiments of the elevator door guide device of the present invention, the anti-bending connector 31 includes a first connector 311, a second connector 312, and a third connector 313. The first connector 311 is connected to the carrier 10, the second connector 312 is connected to the first connector 311 at one end and to the third connector 313 at the other end, and the third connector 313 is connected to the guide group 20.

[0106] Those skilled in the art can set the connection method between the first connector 311, the second connector 312 and the third connector 313 according to actual needs, such as welding. Preferably, the first connector 311, the second connector 312 and the third connector 313 are integrally formed.

[0107] There is a first angle α1 between the extending direction of the first connector 311 and the extending direction of the second connector 312 , or / and a second angle α2 between the extending direction of the second connector 312 and the extending direction of the third connector 313 .

[0108] Preferably, refer to Figure 5 As shown, the extension direction of the first connector 311 and the extension direction of the second connector 312 form a first angle α1, so that the first connector 311 can fit closely with the first carrier 11, increasing the contact area between the two, thereby enhancing structural stability and connection reliability. Preferably, both the first carrier 11 and the first connector 311 are provided with through holes, and bolts are provided in the through holes. The bolts cooperate with nuts to lock the first carrier 11 and the first connector 311.

[0109] Reference Figure 6 As shown, in some embodiments, there is a second angle α2 between the extension direction of the second connector 312 and the extension direction of the third connector 313, so that the spacing between the guide bodies can be controlled within a suitable range, and avoidance of other components in the elevator can be achieved, thereby improving space utilization.

[0110] Further, refer to Figure 11 As shown, in some embodiments of the elevator door guide device of the present invention, the third connecting body 313 is provided with a third connecting hole 3131, and the guide member 21 is provided with a fourth connecting hole 214 corresponding to the third connecting hole 3131. The elevator door guide device further includes a second fixing member 421 and a second abutting member 422.

[0111] The second fixing member 421 is connected to the third connection hole 3131 and the fourth connection hole 214, respectively. Preferably, the second fixing member 421 includes a bolt and a nut. The bolt is inserted into the third connection hole 3131 and the fourth connection hole 214 and cooperates with the nut to achieve a fixed connection between the two guide members 21. The second abutment member 422 is provided on the second fixing member 421 and is disposed between the two guide members 21.

[0112] Those skilled in the art can configure the second abutment member 422 according to actual needs. For example, along the first direction D1, an independent second abutment member 422 is provided on both sides of the third connector 313, and each second abutment member 422 abuts against the third connector 313 and the corresponding guide member 21. Alternatively, a second abutment member 422 can be provided that avoids the third connector 313, and the second abutment member 422 abuts against the two guide members 21.

[0113] By providing this structure, the guide member 21 can be effectively fixed, the structural strength of the guide group 20 can be enhanced, and the stability, reliability and safety of the device can be further improved.

[0114] The present invention further provides an elevator comprising the elevator door guide device as described in any one of the above embodiments, and a plurality of door bodies. The elevator of the present invention, since it includes the elevator door guide device described in the above embodiments, has all the beneficial effects that the elevator has, and will not be described in detail.

[0115] The door body is movably connected to a corresponding guide member 21. The same guide member 21 can provide guidance for only one door body or for multiple door bodies at the same time.

[0116] The door body is slidably connected to the guide member 21 via guide wheels. Exemplarily, the door body includes a detachably connected door panel and a hanging plate 51. The door panel is conventional and not shown in the figure. Along the first direction D1, the hanging plate 51 is disposed on a side of the guide member 21 corresponding to the mounting surface 212. The hanging plate 51 is provided with guide wheels for slidably connecting to the guide member 21.

[0117] In some embodiments, four guide wheels are provided, one at each corner of a rectangle. Along the second direction D2, the two guide wheels located above abut against the upper portion of the guide member 21, while the two guide wheels located below abut against the lower portion of the guide member 21.

[0118] On this basis, the hanging plate 51 can reciprocate relative to the guide member 21 along the third direction D3. To close the elevator door, the door panels on different guide members 21 are driven by the hanging plate 51 to move along the third direction D3, maintaining an offset with the door panels on other guide members 21, thereby closing the door. To open the elevator door, the door panels on different guide members 21 are driven by the hanging plate 51 to move along the third direction D3, overlapping with the door panels on other guide members 21, thereby opening the door.

[0119] Considering the situation of the elevator door with a three-fold center, the excessively long guide rail will increase the difficulty of installation and reduce the installation efficiency. Figure 12 As shown, in some embodiments of the elevator of the present invention, two elevator door guide devices are provided, and the two elevator door guide devices are provided in sequence along the third direction D3.

[0120] In each elevator door guide device, the carrier 10 includes a fourth carrier 14, which is arranged on one side of the guide member 21 along the third direction D3. Preferably, the fourth carrier 14 and the third carrier 13 are arranged on both sides of the first carrier 11 along the third direction D3, and the fourth carrier 14 connects the first carrier 11 and the second carrier 12 respectively.

[0121] The fourth carrier 14 is provided with a second connecting portion 141, and the two elevator door guide devices are detachably connected via the second connecting portion 141. It can be understood that when two elevator door guide devices are provided, although the connection between the two is separated by the fourth carrier 14, it does not affect the opening and closing of the center-split door body.

[0122] Preferably, the second connection portion 141 is configured as a through hole, in which a load-bearing connection component 142 is disposed. Preferably, the load-bearing connection component 142 includes a bolt and a nut, and the bolt cooperates with the nut to achieve a fixed connection between the two fourth carriers 14 .

[0123] When this structure is set up, the original one-stage, relatively long structure is divided into two-stage, relatively short structures. During installation, the two can be installed in sections, which greatly reduces the installation difficulty and improves the production, transportation and installation efficiency.

[0124] To achieve synchronized opening and closing of each door panel in an elevator door, a pulley structure is typically used to connect the door panels. When one door panel moves, the pulley structure drives the other panels to open and close synchronously. However, in existing pulley structures, the pulleys are all positioned on the same side of the guide rail in the height direction, and the axis of the pulleys is axially arranged horizontally (for example, parallel to the first direction D1). This results in a relatively large height structure, low space utilization, and significant difficulty in reinforcing the guide rail.

[0125] To solve the above problems, refer to Figure 13 and Figure 14 As shown, in some embodiments of the elevator of the present invention, the elevator further comprises a plurality of interlocking wheels 61. Along the second direction D2, the plurality of interlocking wheels 61 are respectively arranged on both sides of the guide member 21. For example, when four interlocking wheels 61 are provided, the four interlocking wheels 61 are arranged in pairs on both sides of the guide member 21 along the second direction D2.

[0126] The linkage wheel 61 is connected to the corresponding hanging plate 51. Figure 14 As shown, the axis of rotation of each linkage wheel 61 is parallel to the second direction D2. Figure 14 In the figure, the dotted line indicates the axis of the rotation shaft of the linkage wheel 61. By disposing the linkage wheels 61 on both sides of the guide member 21 along the second direction D2, and axially arranging the rotation shaft of the linkage wheel 61 parallel to the second direction D2, the volume of the linkage structure in the prior art can be effectively reduced, improving space utilization, and providing the elevator with a space advantage while also enhancing overall stability.

[0127] The linkage wheels 61 are used to set linkage ropes 62, which are used to connect to the hanging plates 51 to drive the corresponding hanging plates 51 to move synchronously. Specifically, each two linkage wheels 61 are matched with a linkage rope 62 to form a pulley block. The linkage rope 62 is wound around the two linkage wheels 61 and is fixedly connected to the corresponding components, such as the door head back panel and the hanging plates 51, thereby driving the linkage movement of each hanging plate 51 to realize the opening and closing of the door.

[0128] For example, a side-opening, tri-fold elevator landing door includes a fast guide rail, a medium-speed guide rail, and a slow guide rail. The fast and medium-speed guide rails form a guide assembly 20 and are reinforced by a bending-resistant connector 31. The hanging plates on the fast, medium, and slow guide rails are referred to as fast hanging plates 521, medium hanging plates 522, and slow hanging plates 523, respectively.

[0129] When the elevator is running and the door is opened or closed, the quick hanging plate 521 cooperates with the car door hanging plate transmission (for example, through the door ball and door knife transmission) to achieve synchronous movement.

[0130] Reference Figure 15 As shown, in order to enable the medium-speed hanging plate 522 and the slow-speed hanging plate 523 to move along with the fast hanging plate 521, linkage wheels 61 and linkage ropes 62 are required between the fast hanging plate 521 and the slow-speed hanging plate 523, and between the medium-speed hanging plate 522 and the slow-speed hanging plate 523. In other words, a total of four linkage wheels 61 and two linkage ropes 62 are required. In this case, the four linkage wheels 61 and the two linkage ropes 62 are divided into two linkage groups, which are respectively arranged on both sides of the guide member 21 along the second direction D2.

[0131] To facilitate the distinction between the linkage wheels 61 and the linkage ropes 62, one group of linkage wheels 61 is recorded as wheel A 611 and wheel B 612, and wheel A 611 and wheel B 612 are arranged above the guide member 21 (corresponding to one side of the guide member 21 in the second direction D2), and the linkage rope 62 corresponding to wheel A 611 and wheel B 612 is recorded as rope A 621; the other group of linkage wheels 61 is recorded as wheel C 613 and wheel D 614, and wheel C 613 and wheel D 614 are arranged below the guide member 21 (corresponding to the other side of the guide member 21 in the second direction D2), and the linkage rope 62 corresponding to wheel C 613 and wheel D 614 is recorded as rope B 622.

[0132] The rotating shafts of both wheel A 611 and wheel B 612 are fixedly mounted. For example, the rotating shafts of the two interlocking wheels 61 are fixedly connected to the support 10. Meanwhile, the rope A 621 includes a first rope portion 6211 and a second rope portion 6212 located on either side of the interlocking wheel 61 along the first direction D1. The first rope portion 6211 is fixedly connected to a component, for example, the support 10. The second rope portion 6212 is fixedly connected to the medium-speed hanging plate 522.

[0133] The rotating shafts of reels C 613 and D 614 are both mounted on the medium-speed plate 522. Along the third direction D3, reels C 613 and D 614 are positioned on either side of the medium-speed plate 522. Rope B 622 includes a third rope portion 6221 and a fourth rope portion 6222 positioned on either side of the linkage wheel 61 along the first direction D1. The third rope portion 6221 is fixedly connected to the fast plate 521, while the fourth rope portion 6222 is fixedly connected to the slow plate 523.

[0134] On this basis, when the fast hanging plate 521 is driven to move, the medium-speed hanging plate 522 and the slow-speed hanging plate 523 can realize the linkage movement under the cooperation of the linkage wheel 61 and the linkage rope 62.

[0135] It is worth noting that the linkage wheel 61 and the linkage rope 62 are both staggered with the anti-bending connector 31 to avoid interference with the anti-bending connector 31 during movement and thus affecting the movement.

[0136] By setting up this structure, it can fully cooperate with the guide group 20, effectively reduce the volume and improve space utilization without affecting the synchronous linkage opening and closing of the door body, have high stability, and avoid interference with the anti-bending connector 31.

[0137] Working principle:

[0138] When installing a three-fold elevator, the two elevator door guides can be installed in sections, thereby dividing the original one-piece, relatively long structure into two relatively short sections, greatly reducing the installation difficulty and improving the efficiency of production, transportation, and installation. At the connection between the two elevator door guides, bolts are installed in the through holes of the fourth carrier 14, and the bolts are matched with nuts to achieve a fixed connection.

[0139] When installing the linkage wheels 61 and the linkage ropes 62, each linkage wheel 61 is respectively arranged on both sides of the guide member 21, and the axial direction of the rotating shaft of the linkage wheel 61 is set to be parallel to the second direction D2, thereby reducing the volume of the linkage structure and improving space utilization. This makes the elevator have a space advantage while improving the overall stability.

[0140] In terms of the guide members 21, on the one hand, the fast guide rail and the medium-speed guide rail are combined into a guide group 20, and an anti-bending connector 31 is provided for the guide group 20 to strengthen the fast guide rail and the medium-speed guide rail to prevent them from bending or sinking, thereby preventing the door body on the guide member 21 from sinking or scratching. The overall structure is very stable, reliable, and highly safe. On the other hand, the slow guide rail, the medium-speed guide rail, and the fast guide rail are fixed by fixing members and abutting members, thereby cooperating with the anti-bending connector 31 to further strengthen each guide member 21, thereby further improving the stability, reliability, and safety of the device.

[0141] Compared with the double fast guide rail and reinforced rail structure and the fast guide rail staggered structure in the prior art, the elevator door guide device of the present invention does not occupy additional space on the basis of effectively strengthening the medium-speed guide rail and the fast guide rail, thereby ensuring high space utilization.

[0142] It should be noted that the term "including" and its variations used in the embodiments of the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; and the term "some embodiments" means "at least some embodiments". The modifications of "one" and "a plurality of" mentioned in the embodiments of the present invention are illustrative and non-restrictive. Those skilled in the art should understand that unless the context clearly indicates otherwise, they should be understood as "one or more".

[0143] The various steps described in the method implementation schemes provided in the embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method implementation schemes may include additional steps and / or omit the steps shown. The scope of protection of the present invention is not limited in this respect.

[0144] The term "embodiment" in this specification refers to specific features, structures, or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. The various embodiments in this specification are described in a related manner, and the same or similar parts between the various embodiments are referenced to each other. In particular, for the embodiments of the device, equipment, and system, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts are referred to the partial description of the method embodiment.

[0145] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An elevator door guide device, characterized in that: include: The carrier comprises a first carrier and a second carrier; At least three guide members are arranged in sequence along the first direction, and the guide members are respectively provided with a connecting surface and a mounting surface on both sides along the first direction, and the side of the guide member corresponding to the mounting surface is used to set the door body; the guide member at the head end of the first direction is connected to the carrier through the connecting surface; at least part of the remaining guide members are arranged as a guide group, each of the guide groups includes two guide members, and the connecting surfaces of the two guide members are arranged adjacent to each other; wherein, along the second direction, the first carrier is arranged on one side of the guide member; the second carrier is connected to the first carrier; along the first direction, the second carrier is arranged on one side of the guide member, and the second carrier is connected to the connecting surface of the guide member at the head end of the first direction; The anti-bending connectors are respectively connected to the bearing member and the guide group, and the anti-bending connectors are used to provide anti-bending force for the guide group; wherein, at least one of the anti-bending connectors is respectively connected to the guide group and the first bearing member, or / and, at least one of the anti-bending connectors is respectively connected to the guide group and the second bearing member.

2. The elevator door guide device according to claim 1, characterized in that: Along the third direction, at least one of the two ends of the second carrier is provided with a first connecting hole, and each of the guide members is provided with a second connecting hole corresponding to the first connecting hole; The elevator door guide device also includes: a first fixing member, the first fixing member being connected to the first connecting hole and the second connecting hole respectively; A first abutment is provided on the first fixing member; at least one first abutment is provided, and when multiple first abutment are provided, multiple first abutment are provided in sequence along the extension direction of the first fixing member, each first abutment is provided between two of the guide members, and the first abutment respectively abuts against the corresponding guide members.

3. The elevator door guide device according to claim 1, characterized in that: The carrier also includes: A third carrier is provided on one side of the guide member along the third direction, and the third carrier is connected to the first carrier; a first connecting portion is provided at one end of the third carrier away from the second carrier along the first direction, and the first connecting portion is connected to the guide member at the end of the first direction.

4. The elevator door guide device according to claim 1, characterized in that: There are multiple anti-bending connectors, at least some of which are configured as anti-bending connection groups, each of which includes multiple anti-bending connectors spaced in sequence along a third direction, and the anti-bending connectors in each anti-bending connection group are connected to the same guide group.

5. The elevator door guide device according to any one of claims 1 to 4, characterized in that: The anti-bending connector comprises: a first connector, the first connector being connected to the carrier; a second connector, one end of which is connected to the first connector; a third connector, the third connector being respectively connected to the other end of the second connector and the guide group; There is a first angle between the extending direction of the first connector and the extending direction of the second connector, or / and there is a second angle between the extending direction of the second connector and the extending direction of the third connector.

6. The elevator door guide device according to claim 5, characterized in that: The third connecting body is provided with a third connecting hole, and the guide member is provided with a fourth connecting hole corresponding to the third connecting hole; The elevator door guide device also includes: a second fixing member, the second fixing member being connected to the third connecting hole and the fourth connecting hole respectively; The second abutting member is arranged on the second fixing member, the second abutting member is arranged between the two guide members, and the second abutting member abuts against the corresponding guide members respectively.

7. An elevator, characterized in that: It comprises the elevator door guide device according to any one of claims 1 to 6, and a plurality of door bodies, wherein the door bodies are movably connected to the corresponding guide members.

8. The elevator according to claim 7, characterized in that: There are two elevator door guide devices, and the two elevator door guide devices are arranged in sequence along the third direction; The bearing member includes a fourth bearing body, which is arranged on one side of the guide member along the third direction. A second connecting portion is provided on the fourth bearing body, and the two elevator door guide devices are detachably connected through the second connecting portion.

9. The elevator according to claim 7, characterized in that: The door body includes a door panel and a hanging plate connected to each other, and the hanging plate is movably connected to the corresponding guide member; The elevator also includes a plurality of linkage wheels, which are respectively arranged on both sides of the guide member along the second direction, and the linkage wheels are connected to the corresponding hanging plates; the axial direction of the rotating shaft of the linkage wheel is parallel to the second direction; the linkage wheel is used to set a linkage rope, and the linkage rope is used to connect the hanging plate to drive the corresponding hanging plate to move synchronously; wherein, the linkage wheel and the linkage rope are both staggered with the anti-bending connector.

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