Elevator

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator. An elevator includes a car including a car door; the suspended ceiling is provided with an inner cavity, and the suspended ceiling is arranged at the top of the lift car in the height direction of the lift car; the door machine is used for driving the compartment door to open / close; the door machine comprises a driving piece and a transmission assembly. The transmission assembly is respectively connected with the driving part and the compartment door, and the transmission assembly is controlled by the driving part to drive the compartment door to open / close; wherein the transmission assembly is installed on the side wall, corresponding to one side of the compartment door, of the suspended ceiling, and the driving piece is arranged in the inner cavity. It is necessary to provide an elevator which is high in space utilization rate and capable of fully opening a car door.

Description

Technical Field

[0001] This application relates to the field of elevator manufacturing technology, and in particular to an elevator. Background Technology

[0002] Elevators generally consist of a car and a door operator, with the door operator used to open or close the car doors. In related technologies, the door operator includes a base plate and a drive unit. The drive unit is mounted on the base plate and is used to open or close the car doors. The base plate is then mounted to the front of the car roof using angle steel. This installation results in a relatively thick overall door operator structure. This increased thickness encroaches on the installation space of the car within the hoistway, leading to a smaller overall car size. Furthermore, the length of the base plate limits the door operator's ability to fully open the car doors, making it inconvenient to load or unload large items. Utility Model Content

[0003] Therefore, it is necessary to provide an elevator with high space utilization and fully openable car doors.

[0004] An elevator, comprising:

[0005] The sedan chair, including the doors;

[0006] A suspended ceiling, having an inner cavity, is provided at the top of the car along the height direction of the car;

[0007] A door operator is used to drive the opening / closing action of the compartment door; the door operator includes a drive component and a transmission assembly; the transmission assembly is connected to the drive component and the compartment door respectively, and the transmission assembly is controlled by the drive component to drive the opening / closing action of the compartment door;

[0008] The transmission assembly is installed on the side wall of the ceiling corresponding to the side of the compartment door, and the drive component is located inside the cavity.

[0009] In one embodiment, the transmission assembly includes a door hanging plate, a transmission mechanism, and a guide rail; the door hanging plate is connected to the compartment door and can reciprocate along the length direction of the guide rail; the driving member is connected to the door hanging plate through the transmission mechanism and is used to drive the door hanging plate to perform reciprocating motion; the door hanging plate, the transmission mechanism, and the guide rail are all installed on the side wall of the ceiling corresponding to the compartment door.

[0010] In one embodiment, the door operator further includes a fixing plate disposed on the side wall of the inner cavity corresponding to the side of the door, and the driving component is mounted on the fixing plate.

[0011] In one embodiment, the transmission mechanism includes a drive wheel, a driven wheel, a transmission belt, and a door knife. The drive wheel and the driven wheel are rotatably mounted on the side wall of the ceiling, and the drive wheel is connected to the driving member. The transmission belt is sleeved on the drive wheel and the driven wheel respectively, and extends along the length of the guide rail. The door knife is connected to the transmission belt and the door hanging plate respectively.

[0012] In one embodiment, the transmission assembly further includes a synchronous transmission assembly, which includes a transmission wheel and a transmission rope. The transmission wheel is configured to be at least two, and the two transmission wheels are rotatably disposed at both ends of the guide rail. The transmission rope is respectively sleeved on the two transmission wheels, and the door hanging plate is fixedly connected to the transmission rope.

[0013] In one embodiment, the elevator further includes a control cabinet and a junction box, the junction box being installed inside the cavity; the junction box is electrically connected to the control cabinet and the door motor respectively.

[0014] In one embodiment, the door operator further includes a chain for holding the light curtain cable; one end of the chain is installed on the ceiling sidewall and the other end is installed on the door hanging plate; the light curtain cable is electrically connected to the junction box.

[0015] In one embodiment, a base is provided at the bottom of the inner cavity along the height direction of the inner cavity, the base is connected to the bottom of the suspended ceiling, and the junction box is disposed on the base.

[0016] In one embodiment, the upper part of the inner cavity is open and movably connected to a cover plate; the elevator also includes a maintenance box, which is detachably connected to the cover plate; the maintenance box is electrically connected to the junction box.

[0017] In one embodiment, the elevator further includes a fan and a light fixture. The fan is installed inside the cavity. The bottom of the ceiling faces the interior of the car. The bottom of the ceiling is provided with ventilation holes and mounting holes. The fan ventilates the interior of the car through the ventilation holes. The light fixture is located in the mounting holes to illuminate the interior of the car. Both the fan and the light fixture are electrically connected to the junction box.

[0018] Compared to existing technologies, this elevator directly mounts the door operator's transmission components onto the ceiling sidewall and installs the drive unit within the ceiling's inner cavity. The ceiling sidewall directly serves as the door operator's base plate, eliminating the need for additional space in the car installation area due to the reduced thickness of the door operator and its mounting structure. This allows for deeper cars, increasing the car's internal area, enhancing passenger capacity, and improving efficiency. Furthermore, with the guide rails directly mounted on the ceiling, where shaft space permits, the guide rail ends can extend beyond the car top sidewall, extending the door's movement trajectory and enabling full door opening for easy loading and unloading of large items. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the 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.

[0020] Figure 1 The elevator structure diagram provided in this application.

[0021] Figure 2 This application provides a schematic diagram of the ceiling structure after the cover plate has been removed. Figure 1 .

[0022] Figure 3 This application provides a schematic diagram of the ceiling structure after the cover plate has been removed. Figure 2 .

[0023] Figure 4 A top view of the suspended ceiling provided for this application.

[0024] Figure 5 for Figure 4 A diagram showing the result after removing the cover plate.

[0025] Reference numerals: 1. Car; 11. Car door; 2. Ceiling; 21. Interior cavity; 22. Base; 23. Support beam; 24. Ventilation hole; 25. Mounting hole; 3. Door operator; 30. Transmission assembly; 31. Door hanger; 311. Main door hanger; 312. Secondary door hanger; 33. Drive component; 34. Transmission mechanism; 341. Drive wheel; 342. Driven wheel; 343. Transmission belt; 344. Door knife; 35. Guide rail; 36. Synchronous transmission assembly; 361, transmission wheel; 362, transmission rope; 37, fixing plate; 38, guide wheel; 39, limit switch; 40, gantry inverter; 41, chain; 411, first chain; 412, second chain; 51, junction box; 511, traveling cable; 52, fan; 53, lighting lamp; 6, cover plate; 61, first cover plate; 62, second cover plate; 7, maintenance box; 71, cable; 72, cable hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 5 This application provides an elevator, which includes a car 1, a ceiling 2, and a door operator 3. The car 1 includes two doors 11, which are capable of opening and closing. The ceiling 2 has an inner cavity 21. The ceiling 2 is located at the top of the car 1 along its height direction. The door operator 3 is used to drive the two doors 11 to open and close. The door operator 3 includes a transmission assembly 30 and a drive component 33. The transmission assembly 30 is connected to the drive component 33 and the doors 11 respectively, and the transmission assembly 30 is controlled by the drive component 33 to drive the doors 11 to open and close.

[0032] The transmission component 30 is installed on the side wall of the ceiling 2 corresponding to the door, and the drive component 33 is located in the inner cavity 21.

[0033] Understandably, the transmission assembly 30 is installed on the side wall of the ceiling 2, which directly serves as the base plate of the door operator 3. Compared to the existing door operator 3, this effectively eliminates the space required for the base plate and right-angle steel of the door operator 3, significantly reducing the thickness of the door operator 3. Furthermore, the drive component 33 is installed within the inner cavity 21 of the ceiling 2, and its thickness does not encroach on the installation space of the car 1. Compared to the existing door operator 3, the thickness of the base plate, right-angle steel, and drive component 33 are all eliminated, greatly reducing the thickness of the door operator 3 and its installation structure. This saves at least 50% of the installation space occupied by the car 1, allowing for a deeper car 1. The increased internal area of ​​the car 1 increases passenger capacity while improving efficiency.

[0034] Furthermore, the transmission assembly 30 includes a door mounting plate 31, a transmission mechanism 34, and a guide rail 35; the door mounting plate 31 is connected to the compartment door 11 and can reciprocate along the length of the guide rail 35. The driving component 33 is connected to the door mounting plate 31 via the transmission mechanism 34 and is used to drive the door mounting plate to perform reciprocating motion. The door mounting plate, the transmission mechanism 34, and the guide rail 35 are all installed on the side wall of the ceiling 2 corresponding to the compartment door 11.

[0035] Understandably, the guide rail 35 is directly installed on the suspended ceiling 2. Where the shaft space allows, the end of the guide rail 35 can extend out of the car top side wall to extend the movement trajectory of the car door 11, allowing the car door 11 to be fully opened for easy entry and exit of large items. The number of door hanging plates 31 corresponds to the number of car doors 11.

[0036] In one embodiment, the door operator 3 further includes a fixing plate 37, which is disposed on the side wall of the inner cavity 21 corresponding to the side door 11, and the driving component 33 is mounted on the fixing plate 37.

[0037] For example, the fixing plate 37 is the base plate of the existing door operator 3. The inner cavity 21 corresponds to the side wall of the door 11, that is, the inner side of the side wall of the ceiling 2 corresponding to the door 11, while the door hanging plate 31 transmission mechanism 34 and guide rail 35 are installed on the outer side of this side wall. Thus, the fixing plate 37 can provide a certain support for the side wall of the ceiling 2. When the door hanging plate 31, transmission mechanism 34, and guide rail 35 are installed in the ceiling 2, they can also partially pass through the side wall of the ceiling 2 and connect to the fixing plate 37, making the structure more stable. For example, the driving component 33 is a motor. The driving component 33 is screwed onto the fixing plate 37 for easy installation and disassembly. Of course, in other embodiments, a mounting bracket can also be connected to the fixing plate 37, and the driving component 33 is placed on the mounting bracket.

[0038] Furthermore, the transmission mechanism 34 includes a driving wheel 341, a driven wheel 342, a transmission belt 343, and a door knife 344. The driving wheel 341 and the driven wheel 342 are rotatably mounted on the side wall of the ceiling 2, and the driving wheel 341 is connected to the driving member 33. The transmission belt 343 is sleeved on the driving wheel 341 and the driven wheel, and extends along the length of the guide rail 35. The door knife 344 is connected to the transmission belt 343 and the door hanging plate 31.

[0039] Understandably, the driving component 33 drives the driving wheel 341 to rotate, the driving wheel 341 drives the transmission belt 343 to rotate, the transmission belt 343 drives the driven wheel 342 to rotate, and the transmission belt 343 rotates on the driving wheel 341 and the driven wheel 342. As a result, the door knife 344 moves under the drive of the transmission belt 343, which in turn drives the door hanging plate 31 to move, and the door hanging plate 31 drives the door 11 to move.

[0040] For example, both the driving wheel 341 and the driven wheel 342 are directly mounted on the side wall of the ceiling 2. There is a certain gap between them, which is the movement trajectory of the door 11. The output shaft of the drive unit 33 passes through the fixed plate 37 and the side wall of the ceiling 2 and is connected to the driving wheel 341 to drive the driving wheel 341 to rotate.

[0041] Furthermore, the driving pulley 341 and driven pulley 342 are pulleys, and the transmission belt 343 is a synchronous belt, resulting in better synchronization. The door knife 344 is fixedly connected to the transmission belt 343 via a locking buckle.

[0042] In one embodiment, the transmission assembly 30 further includes a synchronous transmission assembly 36. The synchronous transmission assembly 36 includes transmission wheels 361 and transmission ropes 362. At least two transmission wheels 361 are provided, and the two transmission wheels 361 are rotatably disposed at both ends of the guide rail 35. The transmission ropes 362 are respectively sleeved on the two transmission wheels 361, and the door hanging plates 31 are respectively fixedly connected to the transmission ropes 362.

[0043] Understandably, when there are multiple doors 11, it is necessary to control the synchronous movement of multiple doors 11. In this case, multiple door hanging plates 31 that are connected one-to-one with the multiple doors 11 can achieve synchronous movement through the synchronous transmission assembly 36.

[0044] For example, there are two doors 11, and the door mounting plates 31 include a main door mounting plate 311 and a secondary door mounting plate 312. The main door mounting plate 311 and the secondary door mounting plate 312 are respectively connected to the two doors 11 and can reciprocate along the length of the guide rail 35. A drive component 33 is connected to the main door mounting plate 311 via a transmission mechanism 34, and is used to drive the main door mounting plate 311 to reciprocate. A synchronous transmission assembly 36 is used to drive the secondary door mounting plate 312 and the main door mounting plate 311, allowing the secondary door mounting plate 312 to move synchronously and in opposite directions with the main door mounting plate 311 via the synchronous transmission assembly 36. The main door mounting plate 311, the secondary door mounting plate 312, the transmission mechanism 34, the guide rail 35, and the synchronous transmission assembly 36 are installed on the side wall of the ceiling 2 corresponding to the door, and the drive component 33 is located within the inner cavity 21.

[0045] For example, the drive wheel 361 is a wire wheel or rope wheel, and the drive rope 362 is a wire rope. Two drive wheels 361 are provided, and the drive rope 362 is looped around the two drive wheels 361. There will be two drive ropes 362 in the middle section, one above the other, and the two drive ropes 362 move in opposite directions. The main door hanging plate 311 and the secondary door hanging plate 312 are respectively connected to the two different drive ropes 362. Therefore, when the main door hanging plate 311 moves, it drives the drive rope 362 to rotate, and the secondary door hanging plate 312 moves in the opposite direction to the door hanging plate's movement.

[0046] In one embodiment, the guide rail 35 is fixed to the side wall of the ceiling 2 corresponding to the side of the door 11. The main door hanging plate 311 and the secondary door hanging plate 312 are respectively provided with guide wheels 38 on the side near the guide rail 35. The guide wheels 38 are tumblingly connected to the guide rail 35.

[0047] Understandably, during the movement of the main door mounting plate 311 and the secondary door mounting plate 312, the guide wheel 38 rolls synchronously on the guide rail 35, which guides the movement of the main door mounting plate 311 and the secondary door mounting plate 312, making the operation more stable.

[0048] For example, two guide wheels 38 are provided, which are distributed vertically, and the guide rail 35 is located between the two guide wheels 38, making the fit more stable.

[0049] Furthermore, a limit switch 39 is also installed on the side wall of the ceiling 2 corresponding to the side of the door 11. The limit switch 39 is fixed to the side wall of the ceiling 2. When the door is closed, the main door mounting plate 311 and the auxiliary door mounting plate 312 will touch the limit switch 39 to ensure that the main door mounting plate 311 and the auxiliary door mounting plate 312 are in a fully close state, thereby driving the door 11 to close and ensuring that it is closed in place.

[0050] For example, the limit switch 39 may be a travel switch, a sensor, or the like.

[0051] In one embodiment, the elevator further includes a control cabinet and a junction box 51, which is installed inside the cavity 21. The junction box 51 is electrically connected to both the control cabinet and the door operator 3.

[0052] Understandably, junction box 51 obtains power from the control cabinet, which is then transmitted to the gantry crane 3 and other electrical equipment connected to it.

[0053] In one embodiment, the door operator 3 further includes a chain 41 for holding the light curtain cable. One end of the chain 41 is mounted on the side wall of the ceiling 2, and the other end is mounted on the door mounting plate 31. The light curtain cable is electrically connected to the junction box 51. The chain 41 is also directly mounted on the side wall of the ceiling 2, saving installation space.

[0054] For example, chain 41 is a tank chain.

[0055] For example, the system includes a first chain 411 and a second chain 412. One end of the first chain 411 is mounted on the side wall of the ceiling 2, and the other end is mounted on the main door hanging plate 311. One end of the second chain 412 is mounted on the side wall of the ceiling 2, and the other end is mounted on the secondary door hanging plate 312.

[0056] In one embodiment, the door operator 3 also includes a door operator frequency converter 40. The door operator frequency converter 40 is electrically connected to the drive unit 33 and is also located inside the inner cavity 21, so it does not occupy the installation space of the car 1.

[0057] In one embodiment, the upper part of the inner cavity 21 is open and movably connected to a cover plate 6. The elevator also includes a maintenance box 7, which is detachably connected to the cover plate 6. The maintenance box 7 is electrically connected to the junction box 51.

[0058] Understandably, the inspection box 7 is detachably connected to the cover plate 6 to make it easy for maintenance personnel to access.

[0059] Furthermore, the cover plate 6 can be flipped to open or close the inner cavity 21, facilitating the installation and maintenance of components within the inner cavity 21. The cover plate 6 also enhances the waterproof performance of the ceiling 2, preventing accidental water ingress during daily operations that could lead to short circuits in components.

[0060] For example, the maintenance box 7 is electrically connected to the junction box 51 via a cable 71. The cover plate 6 is provided with a cable hole 72, and the maintenance box 7 is electrically connected to the junction box 51 via a cable 71, which is movably inserted into the cable hole 72.

[0061] For example, the cover plate 6 is hinged to the opening.

[0062] Preferably, the cover plate 6 includes a first cover plate 61 and a second cover plate 62 that are hinged to each other. When the cover plate 6 is opened, the required flipping height is smaller, which is more convenient.

[0063] For example, the maintenance box 7 is equipped with a magnetic chuck. The magnetic chuck is a magnet, which is fixed to the bottom of the maintenance box 7. The cable 71 is 3m long to facilitate the free movement of the maintenance box 7. For example, the maintenance box 7 adopts an existing structure, which will not be described in detail.

[0064] Understandably, the inspection box 7 can be magnetically attached to the car top or car 1. When maintenance personnel are performing maintenance, the inspection box 7 can be easily removed and attached to a convenient location, making maintenance operations more convenient.

[0065] For example, junction box 51 is connected to traveling cable 511, which is electrically connected to control cabinet distribution box to deliver voltage.

[0066] In one embodiment, a base 22 is provided at the bottom of the inner cavity 21 along the height direction of the inner cavity 21, and the base 22 is connected to the bottom of the suspended ceiling. That is, it is connected to the bottom of the inner cavity 21, and the junction box 51 is disposed on the base 22. The junction box 51 is relatively large in size and weight. By using the base 22 to support the junction box 51, the weight is not entirely applied to the bottom of the suspended ceiling 2, and the bottom of the suspended ceiling 2 is less likely to fall off.

[0067] Furthermore, the base 22 includes a plurality of support beams 23. The plurality of support beams 23 are arranged intersecting each other, and the ends of the plurality of support beams 23 are connected to the bottom of the inner cavity 21.

[0068] Preferably, the multiple support beams 23 are arranged in a "well" shape to provide better support.

[0069] For example, the base 22 is connected to the bottom of the ceiling by rivets. The end of the support beam 23 is connected to the bottom of the inner cavity 21 by rivets.

[0070] In one embodiment, the elevator further includes a fan 52 and a light 53. The fan 52 and the light 53 are installed within the inner cavity 21. The bottom of the ceiling 2 faces the interior of the car 1, and the bottom of the ceiling 2 is provided with ventilation holes 24 and mounting holes 25. The fan 52 ventilates the interior of the car 1 through the ventilation holes 24, and the light 53 is located in the mounting holes 25 to illuminate the interior of the car 1. Both the fan 52 and the light 53 are electrically connected to the junction box 51.

[0071] Understandably, fan 52 is used for ventilation of car 1, and lighting 53 is used for lighting inside car 1. Both are powered through junction box 51.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An elevator, characterized in that, include: The car (1) includes the car door (11); The ceiling (2) has an inner cavity (21) and is located at the top of the car (1) along the height direction of the car (1); Door operator (3) is used to drive the door (11) to open / close. The door operator (3) includes a transmission assembly (30) and a drive component (33). The transmission assembly (30) is connected to the drive component (33) and the door (11) respectively. The transmission assembly (30) is controlled by the drive component (33) to drive the door (11) to open / close. The transmission component (30) is installed on the side wall of the ceiling (2) corresponding to the side of the door (11), and the drive component (33) is located in the inner cavity (21).

2. The elevator according to claim 1, characterized in that, The transmission assembly (30) includes a door hanging plate (31), a transmission mechanism (34), and a guide rail (35); the door hanging plate (31) is connected to the compartment door (11) and can reciprocate along the length direction of the guide rail (35); the driving member (33) is connected to the door hanging plate (31) through the transmission mechanism (34) and is used to drive the door hanging plate (31) to perform reciprocating motion; the door hanging plate (31), the transmission mechanism (34), and the guide rail (35) are all installed on the side wall of the ceiling (2) on the side corresponding to the compartment door (11).

3. The elevator according to claim 1, characterized in that, The door operator (3) also includes a fixing plate (37), which is located on the side wall of the inner cavity (21) corresponding to the side door (11), and the driving component (33) is installed on the fixing plate (37).

4. The elevator according to claim 2, characterized in that, The transmission mechanism (34) includes a drive wheel (341), a driven wheel (342), a transmission belt (343), and a door knife (344). The drive wheel (341) and the driven wheel (342) are rotatably mounted on the side wall of the ceiling (2). The drive wheel (341) is connected to the drive member (33). The transmission belt (343) is sleeved on the drive wheel (341) and the driven wheel respectively, and extends along the length of the guide rail (35). The door knife (344) is connected to the transmission belt (343) and the door hanging plate (31) respectively.

5. The elevator according to claim 2, characterized in that, The transmission assembly (30) further includes a synchronous transmission assembly (36), which includes a transmission wheel (361) and a transmission rope (362). There are at least two transmission wheels (361), and the two transmission wheels (361) are rotatably disposed at both ends of the guide rail (35). The transmission rope (362) is sleeved on the two transmission wheels (361) respectively, and the door hanging plate (31) is fixedly connected to the transmission rope (362).

6. The elevator according to claim 2, characterized in that, The elevator also includes a control cabinet and a junction box (51), the junction box (51) being installed inside the inner cavity (21); the junction box (51) is electrically connected to the control cabinet and the door operator (3) respectively.

7. The elevator according to claim 6, characterized in that, The door operator (3) also includes a chain (41) for placing the light curtain cable; one end of the chain (41) is installed on the side wall of the ceiling (2), and the other end is installed on the door hanging plate (31); the light curtain cable is electrically connected to the junction box (51).

8. The elevator according to claim 6, characterized in that, Along the height direction of the inner cavity (21), a base (22) is provided at the bottom of the inner cavity (21), the base (22) is connected to the bottom of the ceiling (2), and the junction box (51) is provided on the base (22).

9. The elevator according to claim 6, characterized in that, The upper part of the inner cavity (21) is open and is movably connected to a cover plate (6); the elevator also includes a maintenance box (7), which is detachably connected to the cover plate (6); the maintenance box (7) is electrically connected to the junction box (51).

10. The elevator according to claim 6, characterized in that, The elevator also includes a fan (52) and a light (53), which are installed in the inner cavity (21); the bottom of the ceiling (2) faces the inside of the car (1), and the bottom of the ceiling (2) is provided with a ventilation hole (24) and a mounting hole (25); the fan (52) ventilates the inside of the car (1) through the ventilation hole (24); the light (53) is located in the mounting hole (25) to illuminate the inside of the car (1); the fan (52) and the light (53) are both electrically connected to the junction box (51).

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