Elevator car

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator car. The elevator car comprises a car body, a handrail and a telescopic ladder stand, the handrail is connected to the inner wall of the car body, a containing cavity is formed in the handrail, the telescopic ladder stand is contained in the containing cavity, the telescopic ladder stand comprises multiple stages of ladder steps, every two adjacent ladder steps are connected through a connecting piece, a top ladder step is located at the top end of the telescopic ladder stand, and a bottom ladder step is located at the bottom end of the telescopic ladder stand. And the top rung and the bottom rung can be far away from each other in the vertical direction and drive the multi-stage rung to move so as to unfold the telescopic ladder stand. The telescopic ladder stand has the advantages that the containing cavity formed in the handrail is used for containing the telescopic ladder stand, and when the telescopic ladder stand is not used, the telescopic ladder stand is in a contracted state, occupies a small size and is contained in the containing cavity. When the telescopic ladder stand needs to be used, the top ladder pedals and the bottom ladder pedals move away from each other to unfold the whole telescopic ladder stand, the top ladder pedals and the bottom ladder pedals are unfolded synchronously, and the opening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator car. Background Art

[0002] Elevators are widely used in various high-rise buildings, but due to the particularity of elevator operation, their safety is particularly important. If an elevator fails during operation, it will pose a huge threat to the personal safety of passengers in the elevator car.

[0003] Existing elevators usually have ladders in the elevator car, so that when the elevator fails and rescuers cannot arrive in time, trapped passengers can use the ladder in the elevator car to rescue themselves. However, the ladder is usually installed on the inner wall of the elevator car, protruding from the front inner wall of the car body, which not only takes up space, but also has an unsightly appearance and is prone to collision accidents. Utility Model Content

[0004] Based on this, the utility model provides an elevator car to solve the above technical problems.

[0005] An elevator car comprises: a car body; a handrail connected to the inner wall of the car body, the handrail being configured with a receiving cavity; a telescopic ladder received in the receiving cavity, the telescopic ladder comprising a plurality of ladder steps, adjacent ladder steps being connected by a connecting piece, a top ladder step being located at the top end of the telescopic ladder, a bottom ladder step being located at the bottom end of the telescopic ladder, the top ladder step and the bottom ladder step being able to move away from each other in a vertical direction, and drive the plurality of ladder steps to move so as to unfold the telescopic ladder.

[0006] In this way, the accommodating cavity constructed in the handrail is used to accommodate the telescopic ladder. When the telescopic ladder is not in use, the telescopic ladder is in a retracted state, and occupies a small volume, so it can be accommodated in the accommodating cavity. When the telescopic ladder needs to be used, the top ladder step at the top moves upward, and the bottom ladder step at the bottom moves downward, and the two move away from each other to unfold the entire telescopic ladder. The ladder step at the top and the ladder step at the bottom are unfolded synchronously, which improves the opening efficiency, and the multiple ladder steps between the two can be used for passengers to climb.

[0007] In one embodiment, a slide groove is opened in each step of the ladder in the horizontal direction, and a sliding rod is provided in the slide groove, and the sliding rod can move along the slide groove. The connecting member is configured as a hinged rod, and the two ends of the hinged rod are respectively connected to the sliding rods in the steps of two adjacent steps, and are rotatably connected to the sliding rods. As the steps of two adjacent steps move toward or away from each other, the movement directions of the two ends of the hinged rod are opposite.

[0008] In one embodiment, two sliding rods are disposed in each of the sliding grooves, two hinged rods are disposed between two adjacent ladder steps, and the two sliding rods in one of the sliding grooves are respectively connected to the two hinged rods.

[0009] In one embodiment, the two hinged rods are cross-arranged, and the two hinged rods are rotatably connected at the mutually crossing position.

[0010] In one embodiment, the elevator car further includes a car top platform, and the top ladder step is provided with a hook, and the hook is detachably connected to the car top platform.

[0011] In one embodiment, a slide groove is provided in the top step, a slide rod is provided in the slide groove, the slide rod can move along the slide groove, and the hook is connected to the slide rod.

[0012] In one embodiment, the hook includes a connecting section, a clamping section, a hinge and a reset member, the connecting section is connected to the sliding rod, one end of the clamping section is connected to an end of the connecting section away from the sliding rod through a hinge, the other end of the clamping section is clamped to the car top platform, the reset member is arranged between the connecting section and the clamping section, and is connected to the connecting section and the clamping section, and can apply a pulling force to the connecting section and the clamping section to move them closer to each other.

[0013] In one embodiment, the top step is further provided with an upper limit rod and a lower limit rod which are spaced apart from each other, and a movable space is defined between the upper limit rod and the lower limit rod. At least a portion of the connecting section is located in the movable space and is limited to move in the movable space.

[0014] In one embodiment, a pull ring is connected to the bottom step, and the pull ring can drive the bottom step to move downward along the vertical direction.

[0015] In one embodiment, at least one fixed step is provided between the top step and the bottom step, and the fixed step is connected to the inner wall of the compartment.

[0016] Compared with the prior art, the utility model integrates the space originally occupied by the telescopic ladder into the handrail by arranging a telescopic ladder in the handrail, thereby reducing the space occupied in the compartment, avoiding safety accidents such as collision between the telescopic ladder and the occupants, and making the space in the compartment more concise and beautiful. In addition, the telescopic ladder is set as a scissor-type structure, and multiple steps can be unfolded synchronously with the single-stage force of the bottom step or the top step, with high unfolding efficiency. The structural strength of the entire telescopic ladder is further strengthened by the hook claw and the fixed step structure, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A cross-sectional view of one embodiment of the telescopic ladder provided by the utility model in an unfolded state;

[0018] Figure 2 A cross-sectional view of one embodiment of the telescopic ladder provided by the utility model in a retracted state;

[0019] Figure 3 A schematic diagram of the structure of the top ladder step provided by the utility model in one of the states when it is unfolded;

[0020] Figure 4 A schematic diagram of the structure of the top ladder step provided by the utility model in one of the states when it is unfolded;

[0021] Figure 5 A schematic diagram of the structure of the top ladder step provided by the utility model in one of the states when it is unfolded;

[0022] Figure 6 A schematic structural diagram of one embodiment of the bottom ladder step provided by the utility model;

[0023] Figure 7 This is a three-dimensional diagram of one embodiment of an elevator car provided by the utility model.

[0024] The symbols in the figure mean the following:

[0025] 100. Elevator car; 10. Car body; 20. Handrail; 21. Accommodation chamber; 30. Telescopic ladder; 31. Ladder step; 311. Top ladder step; 312. Bottom ladder step; 3121. Pull ring; 313. Slide groove; 314. Slide rod; 315. Articulated rod; 316. Claw; 3161. Connecting section; 3162. Snap-connecting section; 3163. Articulated member; 3164. Resetting member; 3165. Upper limit rod; 3166. Lower limit rod; 317. Fixed ladder step; 40. Car top platform; 50. Handrail connecting rod. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0031] Existing elevator cars are usually provided with ladders for self-rescue, but the ladders are usually installed on the inner wall of the car body, which takes up space in the car, affects the aesthetics of the inner wall of the car body, and is prone to cause bumping accidents to passengers.

[0032] In view of this, the utility model provides an elevator car 100, which adopts a telescopic ladder 30. The telescopic ladder 30 is accommodated in the elevator handrail 20. The telescopic ladder 30 arranged in this way will not occupy the space in the car, and also avoids the occurrence of a second safety accident of collision with passengers.

[0033] See also Figure 1-Figure 2 as well as Figure 7The elevator car 100 includes a car body 10, a handrail 20 and a telescopic ladder 30. The handrail 20 is connected to the inner wall of the car body 10. A housing chamber 21 is constructed in the handrail 20. The telescopic ladder 30 is accommodated in the housing chamber 21. The telescopic ladder 30 includes multiple ladder steps 31. Adjacent ladder steps 31 are connected by a connecting piece. The top of the telescopic ladder 30 is a top ladder step 311. The bottom of the telescopic ladder 30 is a bottom ladder step 312. The top ladder step 311 and the bottom ladder step 312 can move away from each other in the vertical direction and drive the multiple ladder steps 31 to move to unfold the telescopic ladder 30. In this way, the housing chamber 21 constructed in the handrail 20 is used to accommodate the telescopic ladder 30. When the telescopic ladder 30 is not in use, the telescopic ladder 30 is in a retracted state and occupies a small volume, so that it is accommodated in the housing chamber 21. When the telescopic ladder 30 needs to be used, the top step 311 at the top moves upward, and the bottom step 312 at the bottom moves downward, and the two move away from each other to unfold the entire telescopic ladder 30. The top step 311 and the bottom step 312 are unfolded synchronously to improve the opening efficiency, and the multi-level steps 31 between the two can be used for passengers to climb.

[0034] Furthermore, a slide groove 313 is provided in each step 31 along the horizontal direction, and a slide bar 314 is provided in the slide groove 313. The slide bar 314 can move along the slide groove 313. The connecting member is provided as a hinged rod 315. The two ends of the hinged rod 315 are respectively connected to the slide bars 314 in the two adjacent steps 31, and are rotatably connected to the slide bars 314. As the two adjacent steps 31 move toward or away from each other, the two ends of the hinged rod 315 move in opposite directions. In this way, since the slide groove 313 is provided horizontally, the slide bar 314 can move in the horizontal direction therein, and since the two ends of the hinged rod 315 are connected to the slide bars 314 in the two adjacent steps 31, it is convenient for the hinged rod 315 and the step 31 to be folded when the telescopic ladder 30 is folded to reduce the occupied area. The specific explanation is given by taking two adjacent sliding bars 314 as an example: when the telescopic ladder 30 is folded, the sliding bar 314 located at the top will automatically move to one end of the slide groove 313. The sliding bar 314 located at the bottom is connected to the sliding bar 314 above through the hinged rod 315, that is, the distance between one end of the two sliding bars 314 connected to the hinged rod 315 is the length of the hinged rod 315, and the distance is fixed. Therefore, the sliding bar 314 located at the bottom will automatically move to the other end of the slide groove 313. As the two adjacent sliding bars 314 move, the hinged rod 315 changes from a vertical layout to a horizontal layout, that is, it fits with the horizontal ladder step 31, thereby reducing the occupied space.

[0035] Of course, in other embodiments, the connecting member may also adopt other structures, such as ropes, belts, etc., and is not limited to the above-mentioned hinge rod 315 structure.

[0036] Preferably, in this embodiment, two slide bars 314 are provided in each slide groove 313, two hinged rods 315 are provided between two adjacent ladder steps 31, and the two slide bars 314 in one slide groove 313 are respectively connected to the two hinged rods 315. Similar to the embodiment of one hinged rod 315, the two hinged rods 315 are also arranged vertically to connect the adjacent ladder steps 31 of the upper and lower levels when the telescopic ladder 30 is in use, and when the telescopic ladder 30 is folded, the two hinged rods 315 are also changed from being arranged vertically to being arranged horizontally, and the four adjacent slide bars 314 are respectively moved in directions away from each other. Two slide bars 314 are arranged in each slide groove 313, and increasing the number of hinged rods 315 to four can improve the working stability between two adjacent ladder steps 31 after unfolding, increase the supporting points between the slide bars 314 and the slide groove 313, and reduce the relative displacement between adjacent ladder steps 31, that is, reduce the shaking of the telescopic ladder 30 during use.

[0037] It is understandable that in other embodiments, in order to further improve the stability of the telescopic ladder 30, the number of the articulated rods 315 can be increased to three or four, etc., and is not limited to the above-mentioned embodiment of two.

[0038] Furthermore, when there are two hinged rods 315, the two hinged rods 315 are cross-arranged and rotatably connected at the mutually intersecting positions. In this way, a scissor-type structure can be formed between the hinged rods 315, and the rotatably connected hinged rods 315 support each other, thereby improving the overall structural strength of the telescopic ladder 30.

[0039] Illustratively, in this embodiment, from the top step 311 to the bottom step 312, two hinged rods 315 are used between two adjacent steps 31, two slide bars 314 are provided in each slide groove 313, and a scissor-type structure is used for connection from top to bottom, thereby enhancing the stability and durability of the telescopic ladder 30.

[0040] The elevator car 100 further includes a car top platform 40, and the top ladder step 311 is provided with a hook 316, and the hook 316 is detachably connected to the car top platform 40. In this way, when the telescopic ladder 30 is unfolded, the top ladder step 311 can be close to the car top platform 40, and the hook 316 is clamped on the car top platform 40, thereby realizing the connection between the telescopic ladder 30 and the car top platform 40, so as to facilitate the trapped passengers to climb from the car to the top of the car top platform 40 to escape.

[0041] Specifically, one end of the hook 316 is connected to the slide bar 314 in the top step 311, and the slide bar 314 can rotate in the slide slot 313, so the hook 316 can also rotate with the slide bar 314 relative to the top step 311. When the telescopic ladder 30 is folded, the hook 316 rotates to a horizontal position to reduce its occupation of the space in the car, and when the telescopic ladder 30 is in use, the hook 316 is rotated to a vertical position to hook the car top platform 40.

[0042] In other embodiments, the top step 311 can also be connected to the car top platform 40 by other means, not limited to the hook 316. For example, by providing a buckle on the top step 311, opening a slot on the car top platform 40, and connecting them to each other. Preferably, the buckle and the slot can be stressed in the vertical direction to prevent the buckle from slipping from the slot due to stress bias. It is not limited to the above-mentioned hook 316 scheme.

[0043] See also Figure 3-Figure 5 In the embodiment of the hook claw 316 of the present embodiment, the hook claw 316 includes a connecting section 3161, a clamping section 3162, a hinge 3163 and a reset member 3164. The connecting section 3161 is connected to the slide bar 314. One end of the clamping section 3162 is connected to the end of the connecting section 3161 away from the slide bar 314 through the hinge 3163. The other end of the clamping section 3162 is clamped to the car top platform 40. The reset member 3164 is arranged between the connecting section 3161 and the clamping section 3162, and is connected to the connecting section 3161 and the clamping section 3162, and can apply a pulling force to the connecting section 3161 and the clamping section 3162 to move them closer to each other. In this way, the connecting section 3161 is connected to the slide bar 314, so the connecting section 3161 and the slide bar 314 rotate synchronously, and the clamping section 3162 is connected to the connecting section 3161, so the clamping section 3162 can also rotate with the connecting section 3161. And because the clamping section 3162 and the connecting section 3161 are connected by the hinge 3163, the clamping section 3162 and the connecting section 3161 can rotate relative to each other, and the two can be arranged at an angle. During the unfolding process of the hook 316, if the distance between the top ladder step 311 and the car top platform 40 is too close, the unfolding path of the hook 316 may interfere with the car top platform 40, causing the hook 316 to be difficult to unfold and hook the car top platform 40. At this time, the clamping section 3162 and the connecting section 3161 can rotate relative to each other, that is, the clamping section 3162 can rotate downward, thereby forming a space to avoid the car top platform 40, so that the hook 316 can be smoothly unfolded. The presence of the reset member 3164 allows the connecting section 3161 and the engaging section 3162 to exert a pulling force to move them closer to each other, that is, the two can automatically return to their initial state, that is, a state without an angle setting, so that the hook 316 can work normally.

[0044] Furthermore, the connecting section 3161 and the clamping section 3162 are always arranged at an angle, and the angle needs to not affect the deployment of the hook 316. When the hook 316 is in use, it needs to bear the weight of the trapped occupant, and the angle between the connecting section 3161 and the clamping section 3162 is conducive to stress transmission, thereby improving the load-bearing capacity of the hook 316.

[0045] In this embodiment, the hinge 3163 is a hinge, which has a simple structure and low cost. In other embodiments, the clamping section 3162 and the connecting section 3161 can also be provided with rotation grooves respectively, and the rotating shaft is inserted into the rotation grooves, so that the clamping section 3162 and the connecting section 3161 can rotate relative to each other, and the technical effect can also be achieved.

[0046] In this embodiment, the reset member 3164 is a torsion spring, which is a standard part like the hinge, has low cost and is easy to install.

[0047] It can be understood that in other embodiments, the locking section 3162 and the connecting section 3161 can also be reset by other elastic members, such as a spring, by connecting the two ends of the spring to the locking section 3162 and the connecting section 3161 respectively.

[0048] The top ladder step 311 is also provided with an upper limit rod 3165 and a lower limit rod 3166 which are arranged at intervals. An activity space is defined between the upper limit rod 3165 and the lower limit rod 3166. At least part of the connecting section 3161 is located in the activity space and is limited to move in the activity space. In this way, the upper limit rod 3165 and the lower limit rod 3166 can define the rotation space and rotation angle of the connecting section 3161, ensuring that the hook 316 is in a workable state, and can also prevent the relative rotation angle between the top ladder step 311 and the car top platform 40 from being too large, causing the telescopic ladder 30 to be unstable.

[0049] See also Figure 6 The bottom ladder step 312 is connected with a pull ring 3121, and the pull ring 3121 can drive the bottom ladder step 312 to move downward in the vertical direction. When the telescopic ladder 30 needs to be unfolded, the trapped occupant only needs to pull the pull ring 3121 on the bottom ladder step 312 to drive the bottom ladder step 312 to move downward, and then further drive the hinged rod 315 located above to be pulled from the horizontal direction to the vertical direction. The vertical hinged rod 315 supports two adjacent ladder steps 31 to be away from each other and spaced at a certain distance, which is the length of the hinged rod 315 between the two ladder steps 31. With the transmission of force, the entire telescopic ladder 30 can be unfolded.

[0050] In order to further enhance the stability of the telescopic ladder 30, at least one fixed ladder step 317 is provided between the top ladder step 311 and the bottom ladder step 312, and the fixed ladder step 317 is connected to the inner wall of the compartment 10. After the fixed ladder step 317 is directly connected to the inner wall of the compartment 10, the stress it bears can be distributed to the inner wall of the compartment 10, and the fixed ladder step 317 can further reduce the shaking of the telescopic ladder 30 due to its fixed relative position, thereby improving the load-bearing capacity of the telescopic ladder 30.

[0051] Exemplarily, the handrail 20 and the inner wall of the body 10 are connected by a handrail 20 connecting rod, and the fixed ladder step 317 is connected to the handrail 20 connecting rod and extends in parallel with the handrail 20 connecting rod to the inner wall of the body 10 in the same direction. Alternatively, the fixed ladder step 317 can also be independently connected to the inner wall of the body 10.

[0052] Compared with the prior art, the present invention integrates the space originally occupied by the telescopic ladder 30 into the handrail 20 by setting the telescopic ladder 30 in the handrail 20, so as to reduce the space occupied in the compartment 10, and also avoid safety accidents such as collision between the telescopic ladder 30 and the occupants, so as to make the space in the compartment 10 more concise and beautiful. In addition, the telescopic ladder 30 is set as a scissor-type structure, and the multi-stage ladder steps 31 can be synchronously unfolded with the single-stage force of the bottom ladder step 312 or the top ladder step 311, and the unfolding efficiency is high. The structural strength of the entire telescopic ladder 30 is further strengthened by the hook claw 316 and the fixed ladder step 317 structure, and the stability of use is improved.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An elevator car, characterized in that: The elevator car comprises: Carriage (10); An armrest (20) connected to the inner wall of the compartment (10), wherein the armrest (20) is provided with a receiving cavity (21); A telescopic ladder (30) is accommodated in the accommodating cavity (21), wherein the telescopic ladder (30) comprises a plurality of ladder steps (31), and adjacent ladder steps (31) are connected via connecting pieces. Located at the top of the telescopic ladder (30) is a top ladder step (311), and located at the bottom of the telescopic ladder (30) is a bottom ladder step (312). The top ladder step (311) and the bottom ladder step (312) can move away from each other in a vertical direction and drive multiple steps of the ladder steps (31) to move so as to unfold the telescopic ladder (30).

2. The elevator car according to claim 1, characterized in that: A slide groove (313) is provided in the ladder step (31) of each level along the horizontal direction, and a slide rod (314) is provided in the slide groove (313). The slide rod (314) can move along the slide groove (313). The connecting member is configured as a hinged rod (315). The two ends of the hinged rod (315) are respectively connected to the slide rods (314) in the ladder steps (31) of two adjacent levels, and are rotationally connected to the slide rod (314). As the ladder steps (31) of two adjacent levels move toward or away from each other, the movement directions of the two ends of the hinged rod (315) are opposite.

3. The elevator car according to claim 2, characterized in that: Two sliding rods (314) are arranged in each sliding groove (313), two hinged rods (315) are arranged between two adjacent ladder steps (31), and the two sliding rods (314) in one sliding groove (313) are respectively connected to the two hinged rods (315).

4. The elevator car according to claim 3, characterized in that The two hinge rods (315) are cross-arranged, and the two hinge rods (315) are rotatably connected at the mutually cross-arriving positions.

5. The elevator car according to claim 1, characterized in that: The elevator car also includes a car top platform (40), and the top ladder step (311) is provided with a hook (316), and the hook (316) is detachably connected to the car top platform (40).

6. The elevator car according to claim 5, characterized in that A slide groove (313) is provided in the top ladder step (311), a slide rod (314) is provided in the slide groove (313), the slide rod (314) can move along the slide groove (313), and the hook (316) is connected to the slide rod (314).

7. The elevator car according to claim 6, characterized in that The hook (316) comprises a connecting section (3161), a clamping section (3162), a hinge (3163) and a reset member (3164); the connecting section (3161) is connected to the slide bar (314); one end of the clamping section (3162) is connected to an end of the connecting section (3161) away from the slide bar (314) via a hinge (3163); the other end of the clamping section (3162) is clamped to the car top platform (40); the reset member (3164) is arranged between the connecting section (3161) and the clamping section (3162), and is connected to the connecting section (3161) and the clamping section (3162), and can apply a pulling force to the connecting section (3161) and the clamping section (3162) to bring them closer to each other.

8. The elevator car according to claim 7, characterized in that The top ladder step (311) is also provided with an upper limit rod (3165) and a lower limit rod (3166) which are arranged at intervals, and an activity space is defined between the upper limit rod (3165) and the lower limit rod (3166), and at least a part of the connecting section (3161) is located in the activity space and is limited to move in the activity space.

9. The elevator car according to claim 1, characterized in that The bottom step (312) is connected to a pull ring (3121), and the pull ring (3121) can drive the bottom step (312) to move downward along the vertical direction.

10. The elevator car according to claim 1, characterized in that At least one fixed step (317) is provided between the top step (311) and the bottom step (312), and the fixed step (317) is connected to the inner wall of the compartment (10).

Images