Lift car and elevator

Abstract

The invention provides a lift car and an elevator, and relates to the technical field of elevators. The lift car comprises a lift car assembly, a turning plate assembly and a driving assembly, and the lift car assembly is provided with a lift car door; the turning plate assembly is located at the bottom of the lift car door and hinged to the lift car assembly. The driving assembly comprises a door plate and a first transmission part, the door plate is movably arranged on the car door, and the car door can be at least switched between an open state and a closed state through movement of the door plate; the door plate is further connected with the turning plate assembly through a first transmission part, so that the turning plate assembly can be driven to be switched between the state of turning towards the outside of the car door and the state of turning towards the inside of the car door through movement of the door plate. By improving the lift car of the elevator, the personnel and goods entering and exiting efficiency can be improved, and the safety of personnel and goods can be guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of elevators, and particularly to a car and an elevator. Background Art

[0002] A construction elevator, also known as a construction hoist, is a commonly used vertical transportation device for people and goods at a construction site. There is a certain gap between the construction elevator and the main structure to prevent collision between the construction elevator and the main structure during operation. The distance between the construction elevator and the structural edge is generally required to be no more than 50 mm. However, the outer contour of the structure is often inconsistent up and down, and the gap distance at some floors is 10 - 20 cm. There are significant safety hazards during the entry and exit of personnel and the transportation of materials. Usually, a flap is set inside the elevator to solve this problem. When the elevator door is opened and closed, personnel need to flip the flap, which is time-consuming and laborious, affecting the entry and exit efficiency of personnel and goods. At the same time, this also makes some on-site personnel lazy and take chances. When supervision is not strict, they step out (step into) the elevator without flipping the flap, posing safety hazards such as personnel tripping and falling objects. Summary of the Invention

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a car and an elevator. By improving the car of the elevator, it can not only improve the entry and exit efficiency of personnel and goods but also ensure the safety of personnel and goods.

[0004] This application provides the following technical solutions:

[0005] In a first aspect, an embodiment of this application provides a car, which includes:

[0006] A car assembly, which has a car door;

[0007] A flap assembly, which is located at the bottom of the car door, and the flap assembly is hinged to the car assembly;

[0008] A driving assembly, which includes a door panel and a first transmission member. The door panel is movably disposed on the car door, and the movement of the door panel can switch the car door between at least an open state and a closed state; wherein, the door panel is also connected to the flap assembly through the first transmission member, so that the movement of the door panel can drive the flap assembly to switch between a state of flipping outwards from the car door and a state of flipping inwards towards the car door.

[0009] In some embodiments of the first aspect, the door panel includes an upper door panel, a lower door panel and a second transmission member, the upper door panel is detachably disposed at the upper portion of the car door, the lower door panel is detachably disposed at the lower portion of the car door, the upper door panel is connected to the lower door panel via the second transmission member, so that movement of the upper door panel can drive movement of the lower door panel, and the movement directions of the lower door panel and the upper door panel are opposite.

[0010] In some embodiments of the first aspect, the moving direction of the upper door panel is the height direction of the car; when the car door is in a closed state, the flap assembly is located on a side of the door panel close to the car door; and the first transmission member includes:

[0011] A rack and a gear, wherein the gear is rotatably arranged on the car assembly, the rack is arranged on the upper door panel, the rack is extended along the height direction of the car, and a separation section and a meshing section are provided on the moving path of the upper door panel, the separation section and the meshing section are sequentially arranged in the direction in which the upper door panel moves away from the car door, the rack and the gear located in the separation section are in a separation state, and the rack and the gear located in the meshing section are in a meshing state; wherein, in the direction in which the upper door panel moves away from the car door, the movement of the upper door panel in the separation section can form an avoidance space for the flap assembly to flip over between the upper door panel and the lower door panel respectively;

[0012] A chain transmission mechanism, wherein the chain transmission mechanism has a power input sprocket and a power output sprocket, the power input sprocket is transmission-connected to the gear so that the rotation of the gear can drive the power input sprocket to rotate, and the power output sprocket is transmission-connected to the flap assembly so that the rotation of the power output sprocket can drive the flap assembly to flip.

[0013] In some embodiments of the first aspect, the chain transmission mechanism includes a primary chain transmission mechanism, a secondary chain transmission mechanism and a transfer portion, the transfer portion is detachably connected to the car assembly, the primary chain transmission mechanism has a primary active transmission sprocket and a primary driven transmission sprocket, the primary active transmission sprocket is rotatably arranged on the car assembly, the primary driven transmission sprocket is rotatably arranged on the transfer portion, the primary active transmission sprocket is the power output sprocket, and the primary active transmission sprocket is connected to the gear transmission;

[0014] The secondary chain transmission mechanism comprises a secondary active transmission sprocket and a secondary driven transmission sprocket, the secondary active transmission sprocket is rotatably arranged on the adapter, the secondary driven transmission sprocket is rotatably arranged on the car assembly, the secondary active transmission sprocket is transmission-connected to the primary driven transmission sprocket, the secondary driven transmission sprocket is the power output sprocket, and the secondary driven transmission sprocket is transmission-connected to the flap assembly.

[0015] In some embodiments of the first aspect, the adapter comprises:

[0016] A base, the base is detachably connected to the car assembly, the base having a tension adjustment direction, a tensioning position and a first limit hole;

[0017] A sliding seat, the primary driven transmission sprocket and the secondary active transmission sprocket are both rotatably arranged on the sliding seat, the sliding seat is slidably connected to the base, the sliding seat has a second limiting hole, the sliding seat can slide along the tension adjustment direction to adjust the tension of the chains of the primary chain transmission mechanism and the secondary chain transmission mechanism, and the tensioning station is located on the moving path of the sliding seat, when the sliding seat is located at the tensioning station, the chains of the primary chain transmission mechanism and the secondary chain transmission mechanism are both in a tensioned state;

[0018] A limiting member is removably disposed through the first limiting hole and the second limiting hole to limit the sliding seat so that the sliding seat is in the tensioning position.

[0019] In some embodiments of the first aspect, the tension adjustment direction is the depth direction of the car, the adapter further comprises a first elastic member, one end of the first elastic member is connected to an end of the base close to the car door, the other end of the first elastic member is connected to the sliding seat, the tensioning station is located at an end of the base away from the car door, and the primary active transmission sprocket and the secondary driven transmission sprocket are close to the car door;

[0020] When the sliding seat is located at the tensioning station, the first elastic member is in an elastically deformed state, so that the first elastic member has a driving force acting on the sliding seat to move toward the car door.

[0021] In some embodiments of the first aspect, the sliding seat has a connecting portion, the second limiting hole is located in the connecting portion, and a limiting gap is defined between the connecting portion and the base; the side of the limiting member has a protruding portion, the protruding portion is located in the middle of the limiting member, and a side wall of the second limiting hole has a side hole portion, the protruding portion can pass through the side hole portion, the limiting member can be rotatably inserted into the first limiting hole and the second limiting hole, and the protruding portion is located in the limiting gap, wherein the rotation of the limiting member can cause the protruding portion and the side hole portion to be misaligned.

[0022] In some embodiments of the first aspect, the flap assembly includes a flap and a guardrail, the flap is rotatably arranged at the bottom of the car door, the guardrails are respectively arranged on both sides of the flap, and the guardrails are located at the stepping end surface of the flap.

[0023] In some embodiments of the first aspect, the flap assembly includes a flap and a second elastic member, one side of the power output sprocket has a toggle portion, the flap has a rotating portion, the rotating portion is rotatably connected to the bottom of the car door, one end of the rotating portion has a toggle groove, the toggle portion is inserted into the toggle groove, and the toggle groove extends along the rotation direction of the toggle portion, the second elastic member is arranged in the toggle groove, in the rotation direction of the flap toward the car door, one end of the second elastic member abuts against the toggle portion, the other end of the second elastic member abuts against the upstream groove end of the toggle groove, and the toggle portion also abuts against the downstream groove end of the toggle groove.

[0024] In a second aspect, the present application further provides an elevator, comprising a car as described in any one of the above embodiments.

[0025] The embodiments of the present application have the following advantages:

[0026] The present application provides a car, when the door panel moves to open the car door, the flap assembly flips outwards through the transmission action of the first transmission member to fill the gap between the elevator and the building. When the door panel moves to close the car door, the flap assembly flips inwards back to the initial position to prepare for the next use.

[0027] Therefore, by linking the door panel of the elevator car and the flap assembly, the flap assembly is driven to flip during the opening and closing of the car door, eliminating the need for manual handling of the flap separately. Obviously, the automated flap operation reduces safety hazards caused by human negligence, such as the risk of tripping or objects falling due to stepping out of the elevator without flipping the flap. Moreover, it ensures that the flap can be accurately positioned every time the elevator door opens and closes, effectively reducing or eliminating the gap between the elevator and the building. Furthermore, the linkage between the flap assembly and the door panel eliminates the time and labor for manual flap operation, speeds up the entry and exit of personnel and goods, reduces delays caused by improper manual operation, and improves the overall work efficiency.

[0028] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0030] Figure 1 FIG. 1 shows a schematic structural view of a perspective of a car of an elevator provided by an embodiment of the present application in a closed state;

[0031] Figure 2 FIG. 2 shows a schematic structural view of a perspective of a car of an elevator provided by an embodiment of the present application in an open state;

[0032] Figure 3 FIG. 3 shows a schematic structural view of a perspective of a drive assembly provided by an embodiment of the present application;

[0033] Figure 4 FIG. 4 shows a schematic assembly structural view of a perspective of a gear and a rack provided by an embodiment of the present application;

[0034] Figure 5 FIG. 5 shows a schematic assembly structural view of another perspective of a gear and a rack provided by an embodiment of the present application;

[0035] Figure 6 FIG. 6 shows a schematic assembly structural view of a perspective of a secondary driving sprocket and a primary driven sprocket provided by an embodiment of the present application;

[0036] Figure 7 FIG. 7 shows a schematic assembly structural view of another perspective of a secondary driving sprocket and a primary driven sprocket provided by an embodiment of the present application;

[0037] Figure 8 A schematic diagram of an assembly structure of a position limiting member provided in an embodiment of the present application is shown;

[0038] Figure 9 A schematic structural diagram of a chain transmission mechanism provided in an embodiment of the present application is shown;

[0039] Figure 10 A schematic diagram of an assembly structure of a secondary driven transmission sprocket provided in an embodiment of the present application is shown from one perspective;

[0040] Figure 11 A schematic diagram of an assembly structure of a secondary driven transmission sprocket provided by an embodiment of the present application from another perspective is shown;

[0041] Figure 12 A schematic diagram of an assembly structure of a secondary driven transmission sprocket provided by an embodiment of the present application from another perspective is shown;

[0042] Figure 13 A schematic diagram of the assembly structure of a two-stage driven transmission sprocket provided in an embodiment of the present application is shown from another perspective.

[0043] Description of main component symbols:

[0044] 100-car assembly; 210-upper door panel; 211-rack; 220-lower door panel; 300-flap assembly; 310-rotating part; 320-flap; 400-gear; 510-primary chain transmission mechanism; 511-primary active transmission sprocket; 512-primary driven transmission sprocket; 513-primary transmission gear; 520-transfer part; 521-base; 5211-first slot section; 5212-second slot section; 5213-second slide slot; 5214- The first limiting hole; 522-sliding seat; 5221-second limiting hole; 52211-side hole portion; 5222-first sliding section; 5223-second sliding section; 5224-second sliding portion; 530-secondary chain transmission mechanism; 531-secondary driven transmission sprocket; 5311-moving portion; 532-secondary active transmission sprocket; 533-secondary transmission gear; 540-first elastic member; 550-limiting member; 551-protruding portion; 560-second elastic member. DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0050] In the related art, the construction elevator, also known as the construction hoist, is a commonly used vertical transportation equipment for people and goods at the construction site. A certain gap is left between the construction elevator and the main structure to prevent the construction elevator from colliding with the main structure during operation. The distance between the construction elevator and the edge of the structure is generally required to be no more than 50mm, but the outer contour of the structure is often inconsistent up and down, and the gap distance of some floors is 10-20cm. There are great safety hazards when people enter and exit and transport materials. This problem is usually solved by setting a flap 320 in the elevator. When the elevator door is opened and closed, personnel are required to flip the flap 320, which is time-consuming and laborious, affecting the efficiency of people and goods entering and exiting. At the same time, this also makes some on-site personnel lazy and lucky. When supervision is not strict, they step out (step into) the elevator without flipping the flap 320, which poses a safety hazard of people tripping and objects falling.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, in order to solve the above-mentioned technical problems, an embodiment of the present application provides a car, which includes a car assembly 100, a flap assembly 300 and a drive assembly, the car assembly 100 having a car door; the flap assembly 300 is located at the bottom of the car door, and the flap assembly 300 and the car assembly 100 are hinged; the drive assembly includes a door panel and a first transmission member, the door panel is detachably arranged on the car door, and the movement of the door panel can switch the car door at least between an open state and a closed state; wherein, the door panel is also connected to the flap assembly 300 through the first transmission member, so that the movement of the door panel can drive the flap assembly 300 to switch between a flipping state toward the outside of the car door and a flipping state toward the inside of the car door.

[0052] In these embodiments, the application provides an improved car, which is particularly suitable for use in a construction elevator environment to improve safety and operating efficiency. The application takes the car of an elevator as an example. Of course, in other embodiments, it can also be a car of a car, a car of a transport box, etc.

[0053] The car assembly 100 includes a car door that can be opened and closed, which constitutes the main passage for people and goods to enter and exit. For example, in this embodiment, the car assembly 100 has one car door. Of course, in other embodiments, the car assembly 100 may also have two or three car doors, which is not specifically limited here and is selected according to the actual application scenario.

[0054] The flap assembly 300 is located at the bottom of the car door and is connected to the car assembly 100 by a hinge. The flap assembly 300 can be flipped outward or inward when necessary to adapt to the change in the gap between the construction elevator and the building. For example, when the car stops at the corresponding floor, the flap assembly 300 can be flipped to overlap the floor ground.

[0055] The driving assembly has multiple components. Among them, the door panel is installed on the car door, and the opening and closing functions of the car door can be realized by moving. The first transmission member is used to connect the door panel and the flap assembly 300, and the first transmission member is used to transmit power to transmit the driving force generated by the movement of the door panel to the flap assembly 300, so as to drive the flap assembly 300 to flip, that is, when the door panel moves (for example, opening or closing the door), it can drive the flap assembly 300 to switch between the outward flipping state and the inward flipping state, that is, to realize the opening or closing of the car door.

[0056] Exemplarily, the first transmission member can be a chain drive mechanism, a multi-link drive mechanism, a belt drive mechanism, a gear 400 drive mechanism, etc. Obviously, the first transmission member can transmit power and convert the movement form of the door panel into the flipping form of the flap assembly 300. For example, if the movement form of the door panel is linear movement, the first transmission member converts the linear movement of the door panel into the rotation of the flap assembly 300. Of course, the movement form of the door panel can also be rotation.

[0057] Exemplarily, the first transmission member is a belt drive mechanism. The door panel is connected to the transmission belt of the belt drive mechanism, and the pulley of the belt drive mechanism is drivingly connected to the flap assembly 300, or the axis of the pulley coincides with the rotation axis of the flap assembly 300, and the two rotate coaxially.

[0058] For easy understanding, the working process is provided as follows: When the door panel moves to open the car door, through the transmission action of the first transmission member, the flap assembly 300 flips outwards to fill the gap between the elevator and the building. When the door panel moves to close the car door, the flap assembly 300 flips inwards back to the initial position to prepare for the next use.

[0059] Therefore, by linking the door panel of the elevator car and the flap assembly 300, it is realized that the flap assembly 300 is driven to flip during the process of opening and closing the car door, eliminating the need for manual removal and placement of the flap 320. Obviously, the automated operation of the flap 320 reduces the safety hazards caused by human negligence, such as the risk of tripping or falling objects when stepping out of the elevator without flipping the flap 320. And it ensures that the flap 320 can be accurately in place every time the elevator door is opened and closed, effectively reducing or eliminating the gap between the elevator and the building. Moreover, the linkage between the flap assembly 300 and the door panel eliminates the time and labor for manually operating the flap 320, speeds up the entry and exit speed of personnel and goods, reduces the delays caused by improper manual operation, and improves the overall work efficiency.

[0060] Such as Figure 1 and Figure 2 As shown, in some embodiments, the door panel includes an upper door panel 210, a lower door panel 220, and a second transmission member. The upper door panel 210 is removably disposed on the upper part of the car door, the lower door panel 220 is removably disposed on the lower part of the car door, and the upper door panel 210 is connected to the lower door panel 220 through the second transmission member, so that the movement of the upper door panel 210 can drive the movement of the lower door panel 220, and the movement directions of the lower door panel 220 and the upper door panel 210 are opposite.

[0061] In these embodiments, the structure of the door panel is further disclosed, adding the upper door panel 210 and the lower door panel 220 and realizing linkage through the second transmission member. This design can provide a more flexible door operation method and can improve safety and efficiency in certain specific scenarios.

[0062] The upper door panel 210 is movably and removably arranged at the upper part of the car door. It is usually responsible for opening and closing the upper half of the door.

[0063] The lower door panel 220 is movably and removably arranged at the lower part of the car door. It is responsible for opening and closing the lower half of the door.

[0064] The second transmission member connects the upper door panel 210 and the lower door panel 220. It ensures that the movement of the upper door panel 210 can drive the movement of the lower door panel 220, and the two move in opposite directions. Exemplarily, the second transmission member can be a chain drive mechanism, a multi-link drive mechanism, a belt drive mechanism, a gear 400 drive mechanism, etc. Exemplarily, the second transmission member is a belt drive mechanism. One side of the upper door panel 210 is connected to the transmission belt of the belt drive mechanism, and the other side of the lower door panel 220 is connected to the transmission belt of the belt drive mechanism, thereby realizing the relative movement or the movement away from each other of the upper door panel 210 and the lower door panel 220.

[0065] As Figure 3 、 Figure 4 and Figure 5 shown, in some embodiments, the moving direction of the upper door panel 210 is the height direction of the car; when the car door is in the closed state, the flap assembly 300 is located on the side of the door panel close to the car door;

[0066] The first transmission member includes a rack 211, a gear 400 and a chain drive mechanism. The gear 400 is rotatably arranged on the car assembly 100. The rack 211 is arranged on the upper door panel 210. The rack 211 extends along the height direction of the car, and there are a separation section and an engagement section on the moving path of the upper door panel 210. The separation section and the engagement section are arranged in sequence in the direction in which the upper door panel 210 moves away from the car door. The rack 211 and the gear 400 are in a separated state in the separation section, and the rack 211 and the gear 400 are in an engaged state in the engagement section; wherein, in the direction in which the upper door panel 210 moves away from the car door, the movement of the upper door panel 210 in the separation section can form an avoidance space for the flap assembly 300 to flip between the upper door panel 210 and the lower door panel 220 respectively;

[0067] The chain drive mechanism has a power input sprocket and a power output sprocket. The power input sprocket is drivingly connected to the gear 400, so that the rotation of the gear 400 can drive the rotation of the power input sprocket, and the power output sprocket is drivingly connected to the flap assembly 300, so that the rotation of the power output sprocket can drive the flap assembly 300 to flip.

[0068] In these embodiments, the transmission mechanism is further described in detail, especially the moving direction of the upper door panel 210, the cooperation mode of the rack 211 and the gear 400, and the specific application of the chain drive mechanism. This design realizes the automatic operation of the door panel and the flap assembly 300 through a complex mechanical linkage system, improving the reliability and efficiency of the system.

[0069] The moving direction of the upper door panel 210 is the height direction of the car, i.e., the vertical direction. When the car door is in the closed state, the flap assembly 300 is located on the side of the door panel close to the car door.

[0070] Among the components of the first transmission member: The gear 400 is rotatably arranged on the car assembly 100. The rack 211 is arranged on the upper door panel 210 and extends along the height direction of the car. Moreover, there are a separation section and an engagement section on the moving path of the upper door panel 210. That is to say, the engagement section is above the separation section. Separation section: In this section, the rack 211 and the gear 400 are in a separated state. Engagement section: In this section, the rack 211 and the gear 400 are in an engaged state.

[0071] When the upper door panel 210 moves in the separation section, an avoidance space is formed between the flap assembly 300, the upper door panel 210, and the lower door panel 220, allowing the flap assembly 300 to flip.

[0072] The chain drive mechanism includes a power input sprocket and a power output sprocket. The power input sprocket is drivingly connected to the gear 400, so that the rotation of the gear 400 can drive the power input sprocket to rotate. The power output sprocket is drivingly connected to the flap assembly 300, so that the rotation of the power output sprocket can drive the flap assembly 300 to flip.

[0073] For easy understanding, the working process is as follows:

[0074] 1) Door opening process

[0075] The upper door panel 210 moves upward: In the initial stage, the upper door panel 210 moves in the separation section, and the rack 211 is separated from the gear 400.

[0076] During this process, an avoidance space is formed between the flap assembly 300, the upper door panel 210, and the lower door panel 220. This avoidance space provides sufficient space for the flipping of the flap assembly 300 in the subsequent engagement section, thereby preventing the upper door panel 210 and the lower door panel 220 from interfering with the flipping of the flap assembly 300.

[0077] The upper door panel 210 enters the engagement section: When the upper door panel 210 enters the engagement section, the rack 211 and the gear 400 start to engage. As the upper door panel 210 continues to move upward, the gear 400 is driven to rotate by the rack 211.

[0078] The gear 400 drives the chain drive mechanism: The rotation of the gear 400 drives the power input sprocket to rotate. Through the chain drive mechanism, the power input sprocket transmits the power to the power output sprocket.

[0079] The flap assembly 300 flips: The rotation of the power output sprocket drives the flap assembly 300 to flip, filling the gap between the elevator and the building.

[0080] 2) Closing process

[0081] The upper door panel 210 moves downward: In the initial stage, the upper door panel 210 moves in the meshing section, and the rack 211 remains meshed with the gear 400. The gear 400 rotates reversely as the upper door panel 210 moves, and drives the flap assembly 300 to reverse and flip back to the initial position through the chain drive mechanism.

[0082] The upper door panel 210 enters the separation section: When the upper door panel 210 enters the separation section, the rack 211 separates from the gear 400.

[0083] During the closing process, when entering the separation section, the flap of the flap assembly 300 has returned to the initial position, while the upper door panel 210 and the lower door panel 220 continue to move until they are closed. That is to say, the flap assembly 300 returns to its position first to provide an avoidance space for the subsequent movement of the upper door panel 210 and the lower door panel 220, so that the upper door panel 210 and the lower door panel 220 can be reset smoothly.

[0084] Obviously, the cooperation between the rack 211 and the gear 400 provides high-precision position control to ensure that the flap 320 can be accurately in place every time the door is opened and closed. The chain drive mechanism can achieve efficient force transmission between the gear 400 and the flap assembly 300, and is suitable for heavy-duty application scenarios. The design of the separation section and the meshing section enables the system to be flexibly adjusted under different working conditions to ensure the safe flipping and resetting of the flap assembly 300.

[0085] Exemplarily, a construction elevator using this design is used at a high-rise building construction site. When the elevator reaches the designated floor, the upper door panel 210 starts to move upward. In the separation section, the upper door panel 210 and the lower door panel 220 first move away from each other. In the meshing section, under the action of the gear 400 and the rack 211, the flap assembly 300 automatically flips outward to fill the gap between the elevator and the building for safe entry and exit of personnel and goods.

[0086] After all personnel and goods enter the elevator, the upper door panel 210 starts to move downward. The rack 211 meshes with the gear 400, driving the chain drive mechanism to flip the flap assembly 300 back to the initial position. Finally, the upper door panel 210 and the lower door panel 220 are completely closed, and the flap assembly 300 is reset, ready for the next operation.

[0087] It should be noted that the inner side of the lower door panel 220 is the side of the lower door panel 220 close to the car assembly 100. Since the flap assembly 300 flips outward to open the car door, it is necessary to consider the interference of the lower door panel 220 and the upper door panel 210 on the rotation of the flap assembly 300, so the present application divides the moving path of the upper door panel 210 into a separation section and a meshing section, and then when the upper door panel 210 moves in the separation section, the gear 400 and the rack 211 are separated, and the upper door panel 210 will not drive the flap assembly 300 to rotate outward. Only after the upper door panel 210 moves to the meshing section, the gear 400 and the rack 211 are meshed, and the upper door panel 210 can drive the flap assembly 300 to flip outward. At this time, there is a certain distance between the upper door panel 210 and the lower door panel 220, and the upper door panel 210 and the lower door panel 220 continue to separate and move away from each other, thereby ensuring that the upper door panel 210 and the lower door panel 220 will not interfere with the outward flipping of the flap assembly 300, that is, during the flipping process of the flap assembly 300, the flap assembly 300 maintains a gap with the upper door panel 210 and the lower door panel 220 respectively.

[0088] Optionally, the flap assembly 300 has a support member, which is located at the stepped end surface of the flap assembly 300, so that when the flap assembly 300 is flipped to a vertical state, the support member abuts against the bottom of the car, so that after the external force is removed, the flap assembly 300 can remain in a vertical state.

[0089] like Figure 3 and Figure 9 As shown, in some embodiments, the chain transmission mechanism includes a primary chain transmission mechanism 510, a secondary chain transmission mechanism 530 and a transfer part 520, the transfer part 520 is detachably connected to the car assembly 100, the primary chain transmission mechanism 510 has a primary active transmission sprocket 511 and a primary driven transmission sprocket 512, the primary active transmission sprocket 511 is rotatably arranged on the car assembly 100, the primary driven transmission sprocket 512 is rotatably arranged on the transfer part 520, the primary active transmission sprocket 511 is a power output sprocket, and the primary active transmission sprocket 511 is transmission-connected to the gear 400;

[0090] The secondary chain transmission mechanism 530 has a secondary active transmission sprocket 532 and a secondary driven transmission sprocket 531. The secondary active transmission sprocket 532 is rotatably arranged on the adapter 520, and the secondary driven transmission sprocket 531 is rotatably arranged on the car assembly 100. The secondary active transmission sprocket 532 is transmission-connected with the primary driven transmission sprocket 512. The secondary driven transmission sprocket 531 is a power output sprocket, and the secondary driven transmission sprocket 531 is transmission-connected with the flap assembly 300.

[0091] In this embodiment, the structure of the chain drive mechanism is further refined, and a primary chain drive mechanism 510, a secondary chain drive mechanism 530, and a transfer part 520 are introduced. This multi-stage chain drive design can achieve a more complex force transmission path, improve the flexibility and adaptability of the system, and facilitate maintenance and adjustment. Among them, the structure of the primary chain drive mechanism 510 is as follows:

[0092] The primary driving sprocket 511 is rotatably arranged on the car assembly 100 and is in transmission connection with the gear 400. The primary driven sprocket 512 is rotatably arranged on the transfer part 520. Moreover, the primary driving sprocket 511 is the power output sprocket, which transmits the rotational motion of the gear 400 to the primary driven sprocket 512.

[0093] The structure of the secondary chain drive mechanism 530 is as follows:

[0094] The secondary driving sprocket 532 is rotatably arranged on the transfer part 520 and is in transmission connection with the primary driven sprocket 512. The secondary driven sprocket 531 is rotatably arranged on the car assembly 100 and finally serves as the power output sprocket, which is in transmission connection with the flap assembly 300.

[0095] The transfer part 520 is detachably connected to the car assembly 100 and is used to install the primary driven sprocket 512 and the secondary driving sprocket 532 to achieve the transition and connection between the two-stage chain drives.

[0096] During the door opening process, when the upper door panel 210 enters the meshing section, the rack 211 starts to mesh with the gear 400. As the upper door panel 210 continues to move upward, the gear 400 is driven to rotate by the rack 211. At this time, the primary chain drive mechanism 510 is activated, and the rotation of the gear 400 drives the primary driving sprocket 511 (i.e., the power output sprocket) to rotate. The primary driving sprocket 511 transmits the power to the primary driven sprocket 512 through the chain, and the latter is located on the transfer part 520.

[0097] At the same time, the secondary chain drive mechanism 530 is activated, and the primary driven sprocket 512 drives the secondary driving sprocket 532 to rotate through the chain. The secondary driving sprocket 532 then transmits the power to the secondary driven sprocket 531 through the chain. The secondary driven sprocket 531 serves as the final power output sprocket, and its rotation drives the flap assembly 300 to flip, filling the gap between the elevator and the building.

[0098] Obviously, the multi-stage chain drive mechanism can achieve complex force transmission paths and is suitable for application scenarios that require multi-step transmission, that is, the transmission distance is relatively long. At the same time, the connection between different chain drive mechanisms is realized through the adapter part 520. Furthermore, by disassembling and assembling the adapter part 520, the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 can be quickly disassembled and assembled. That is to say, after the adapter part 520 is disassembled, the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 can be loosened. Due to the complex environment at the construction site and the mechanical structure being prone to failure, the design of this quick-disassembly structure can ensure that when a failure occurs in the device, the mechanical linkage relationship between the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 and the flap assembly 300 can be quickly released without affecting the normal use of the flap assembly 300. Of course, it is also beneficial for quick disassembly, assembly and maintenance.

[0099] As Figure 6 、 Figure 7 and Figure 8 shown, in some embodiments, the adapter part 520 includes a base 521, a sliding seat 522 and a limiting member 550. The base 521 is detachably connected to the car assembly 100. The base 521 has a tension adjustment direction, a tensioning station and a first limiting hole 5214.

[0100] Both the first-stage driven transmission sprocket 512 and the second-stage driving transmission sprocket 532 are rotatably arranged on the sliding seat 522. The sliding seat 522 is slidably connected to the base 521. The sliding seat 522 has a second limiting hole 5221. The sliding seat 522 can slide along the tension adjustment direction to adjust the tension of the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530. And the tensioning station is located on the moving path of the sliding seat 522. When the sliding seat 522 is located at the tensioning station, the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 are both in a tensioned state.

[0101] The limiting member 550 is removably inserted through the first limiting hole 5214 and the second limiting hole 5221 to limit the sliding seat 522 so that the sliding seat 522 is in the tensioning station.

[0102] In these embodiments, the function of adjusting the chain tension is realized through the base 521, the sliding seat 522 and the limiting member 550, which not only improves the reliability and durability of the chain drive mechanism, but also facilitates maintenance and adjustment.

[0103] The base 521 is detachably connected to the car assembly 100. The base 521 has a tension adjustment direction, a tensioning station and a first limiting hole 5214. Among them, the tension adjustment direction defines the direction in which the sliding seat 522 can move to adjust the tension of the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530.

[0104] The tensioning station is a specific position on the moving path of the sliding seat 522. At the tensioning station, the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 are both in a tensioned state to ensure the normal operation of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530.

[0105] The sliding seat 522 is slidably connected to the base 521 and can slide in the tension adjustment direction. The first-stage driven transmission sprocket 512 and the second-stage driving transmission sprocket 532 are both rotatably arranged on the sliding seat 522. The sliding seat 522 has a second limiting hole 5221. When the sliding seat 522 is located at the tensioning station, it can be fixed at this position by the limiting member 550, that is, to keep the chains of the first-stage chain drive mechanism 510 and the second-stage chain drive mechanism 530 in a tensioned state.

[0106] The limiting member 550 is removably inserted through the first limiting hole 5214 of the base 521 and the second limiting hole 5221 of the sliding seat 522. When the sliding seat 522 is located at the tensioning station, the limiting member 550 is inserted into the limiting hole to limit the sliding seat 522 and ensure that the chain remains in a tensioned state.

[0107] Obviously, by removing the limiting member 550 so that it is no longer inserted through the first limiting hole 5214 of the base 521 and the second limiting hole 5221 of the sliding seat 522, the limitation on the sliding seat 522 is released.

[0108] Moreover, the sliding seat 522 is moved along the tension adjustment direction until the chain reaches an appropriate tension. During this process, the tension state of the chain can be checked to ensure that the chain is neither too loose nor too tight.

[0109] When the sliding seat 522 is located at the tensioning station, the limiting member 550 is re-inserted so that it is inserted through the first limiting hole 5214 of the base 521 and the second limiting hole 5221 of the sliding seat 522 to fix the position of the sliding seat 522. Ensure that the sliding seat 522 is at the tensioning station and keep the chain in a tensioned state.

[0110] Exemplarily, a pair of sliding grooves are provided on the base 521. The openings of the pair of sliding grooves are arranged opposite to each other. The two ends of the sliding seat 522 are respectively slidably inserted into the sliding grooves on the corresponding side, realizing the sliding fit between the base 521 and the sliding seat 522, and thus facilitating the separation of the base 521 and the sliding seat 522 after the subsequent removal of the limiting member 550.

[0111] Further, in a pair of slide grooves, one of the slide grooves is a first slide groove, and the other is a second slide groove 5213, the first slide groove includes a first groove section 5211 and a second groove section 5212, there is a separation gap between the first groove section 5211 and the second groove section 5212, and one side of the sliding seat 522 has a first sliding part, and the other side of the sliding seat 522 has a second sliding part 5224, the first sliding part includes a first sliding section 5222 and a second sliding section 5223, the first sliding section 5222 slides through the first groove section 5211, the second sliding section 5223 slides through the second groove section 5212, and the second sliding part 5224 slides through the second slide groove 5213. The length of the separation gap is greater than the length of the first sliding section 5222, and when the first sliding section 5222 moves to the separation gap, the second sliding section 5223 is located outside the second groove section 5212, thereby facilitating the separation between the sliding seat 522 and the base 521.

[0112] like Figure 6 and Figure 7 As shown, in some embodiments, the tension adjustment direction is the depth direction of the car, the adapter 520 further includes a first elastic member 540, one end of the first elastic member 540 is connected to an end of the base 521 close to the car door, the other end of the first elastic member 540 is connected to the sliding seat 522, the tensioning station is located at an end of the base 521 away from the car door, and the primary active transmission sprocket 511 and the secondary driven transmission sprocket 531 are close to the car door;

[0113] When the sliding seat 522 is located at the tensioning position, the first elastic member 540 is in an elastically deformed state, so that the first elastic member 540 has a driving force acting on the sliding seat 522 to move toward the car door.

[0114] In these embodiments, when the sliding seat 522 is located at the tensioning position, the first elastic member 540 is in an elastic deformation state, providing a driving force to move the sliding seat 522 toward the direction of the car door, so that after the stopper 550 is pulled out, under the action of the first elastic member 540, the chains of the primary chain transmission mechanism 510 and the secondary chain transmission mechanism 530 are in a relaxed state, that is, the distance L1 between the primary active transmission sprocket 511 and the primary driven transmission sprocket 512 is reduced, and the distance L2 between the secondary active transmission sprocket 532 and the secondary driven transmission sprocket 531 is reduced, so that it is easy to remove the chain. In particular, when the primary chain transmission mechanism 510 and the secondary chain transmission mechanism 530 fail, the normal use of the flap assembly 300 can be guaranteed.

[0115] That is to say, after the limiting member 550 is pulled out, the first elastic member 540 can drive the sliding seat 522 to move in the depth direction of the car, so as to approach the car door, making the first-stage driving sprocket 511 and the first-stage driven sprocket 512 of the first-stage chain transmission mechanism 510 approach each other, and the second-stage driving sprocket 532 and the second-stage driven sprocket 531 of the second-stage chain transmission mechanism 530 approach each other, thereby slackening the chains of the first-stage chain transmission mechanism 510 and the second-stage chain transmission mechanism 530.

[0116] Exemplarily, in this embodiment, the first elastic member 540 is set as a telescopic spring. Of course, in other embodiments, the first elastic member 540 can also be an elastic rope or the like. Among them, when the first elastic member 540 is set as a telescopic spring, hooks are respectively arranged at both ends of the telescopic spring, so that both ends of the telescopic spring are hung and connected with the sliding seat 522 and the base 521 through the hooks, which is convenient for disassembly and assembly.

[0117] As Figure 8 shown, in some embodiments, the sliding seat has a connecting portion, the second limiting hole is located in the connecting portion, and a limiting gap is defined between the connecting portion and the base; the side surface of the limiting member 550 has a protruding portion 551, the protruding portion 551 is located in the middle of the limiting member 550, one side wall of the second limiting hole 5221 has a side hole portion 52211, the protruding portion 551 can pass through the side hole portion 52211, the limiting member 550 is rotatably inserted into the first limiting hole 5214 and the second limiting hole 5221, and the protruding portion 551 is located in the limiting gap, wherein the rotation of the limiting member 550 can misalign the protruding portion 551 and the side hole portion 52211.

[0118] In these embodiments, by adding the protruding portion 551 to the side surface of the limiting member 550 and arranging the side hole portion 52211 on one side wall of the second limiting hole 5221, the limiting member 550 can be locked and unlocked by rotation to the sliding seat 522.

[0119] The limiting member 550 is rotatably inserted into the first limiting hole 5214 of the base 521 and the second limiting hole 5221 of the sliding seat 522. Exemplarily, the limiting member 550 is arranged in a cylindrical structure, and the first limiting hole 5214 and the second limiting hole 5221 are arranged as round holes. Of course, in other embodiments, the limiting member 550 is arranged in a prismatic structure, and the first limiting hole 5214 and the second limiting hole 5221 are arranged as round holes or the like.

[0120] The side surface of the limiting member 550 has a protruding portion 551, which is located in the middle of the limiting member 550. One side wall of the second limiting hole 5221 has a side hole portion 52211, and the protruding portion 551 can enter the limiting gap through the side hole portion 52211.

[0121] When the limiting member 550 rotates, the protrusion 551 and the side hole portion 52211 are misaligned, thereby achieving a locking or unlocking function.

[0122] That is, the limiting member 550 passes through the first limiting hole 5214 and the second limiting hole 5221 , and the protrusion 551 is located in the limiting gap, and the protrusion 551 is misaligned with the side hole portion 52211 by rotating the limiting member 550 , thereby locking the position of the sliding seat 522 .

[0123] When it is necessary to pull out the limiting member 550 , the staff can rotate the limiting member 550 to align the protrusion 551 with the side hole portion 52211 , and then the limiting member 550 can be pulled out.

[0124] For example, the head end of the limiting member 550 is inserted into the first limiting hole 5214 and the second limiting hole 5221, and the tail end of the limiting member 550 is provided with a handle for convenient hand-held operation by the staff. For example, the limiting member 550 is a limiting rod. Of course, the limiting member 550 can also be a screw, a bolt, etc. The first limiting member 550 is threadedly connected to the first limiting hole 5214, and the second limiting hole 5221 is set as a through hole.

[0125] like Figure 1 As shown, in some embodiments, the flap assembly 300 includes a flap 320 and a guardrail. The flap 320 is rotatably arranged at the bottom of the car door. Guardrails are respectively arranged on both sides of the flap 320, and the guardrails are located at the treading end surface of the flap 320.

[0126] In these embodiments, guardrails are added to enhance the safety of people and goods passing through the flap 320. One end of the flap 320 is rotatably arranged at the bottom of the car door, and can be flipped outward to fill the gap between the elevator and the building. The guardrails are located on both sides of the flap 320 and are arranged on the stepping end surface of the flap 320 to provide additional support and protection.

[0127] The rotation of the gear 400 is transmitted to the flap assembly 300 through the primary chain transmission mechanism 510 and the secondary chain transmission mechanism 530 to drive the flap assembly 300 to flip. The flap assembly 300 is located in the car in the stowed state, that is, the flap 320 and the guardrail are both in the car, which does not occupy additional space and optimizes the space layout inside the car.

[0128] It should be noted that since the flap 320 is provided with a guardrail, when the flap 320 rotates to the initial position in the car, the guardrail can contact the bottom plate of the car to support the flap 320, so that the flap 320 has a tendency to continue to flip into the car, which is equivalent to adding a counterweight. During the movement of the upper door panel 210 in the separation section, the flap 320 is prevented from flipping outward and affecting the closing of the upper door panel 210 and the lower door panel 220.

[0129] likeFigure 10 , Figure 11 , Figure 12 and Figure 13 As shown, in some embodiments, the flap assembly 300 includes a flap 320 and a second elastic member 560, one side of the power output sprocket has a toggle portion 5311, the flap 320 has a rotating portion 310, the rotating portion 310 is rotatably connected to the bottom of the car door, one end of the rotating portion 310 has a toggle groove, the toggle portion 5311 is inserted into the toggle groove, and the toggle groove extends along the rotation direction of the toggle portion 5311, the second elastic member 560 is arranged in the toggle groove, in the rotation direction of the flap 320 toward the car door, one end of the second elastic member 560 abuts against the toggle portion 5311, the other end of the second elastic member 560 abuts against the first groove end of the toggle groove located upstream, and the toggle portion 5311 also abuts against the second groove end of the toggle groove located downstream.

[0130] In these embodiments, the flap 320 is rotatably arranged at the bottom of the car door and can be turned outward to fill the gap between the elevator and the building. One end of the flap 320 has a rotating portion 310, which is rotatably connected to the bottom of the car door. One end of the rotating portion 310 has a toggle groove, which is extended along the rotation direction of the toggle portion 5311.

[0131] The second elastic member 560 is disposed in the toggle slot to provide elastic restoring force.

[0132] One side of the power output sprocket has a toggle portion 5311 which is inserted into the toggle slot of the flap 320 .

[0133] The toggle part 5311 can move in the toggle groove, and in the rotation direction of the flap 320 toward the car door, the toggle part 5311 abuts against the second groove end of the toggle groove located downstream. When working, the toggle part 5311 can transmit force through the second groove end of the toggle groove located downstream to drive the flap 320 to rotate outward.

[0134] One end of the second elastic member 560 abuts against the toggle portion 5311, and the other end abuts against the first upstream end of the toggle slot. During operation, the toggle portion 5311 can transmit force to the first upstream end of the toggle slot through the second elastic member 560 to drive the flap 320 to rotate inward.

[0135] The construction elevator is started and stopped manually, and it is inevitable that the floor plane and the car bottom plate plane are not flush when stopped. The second elastic member 560 is used to realize a non-rigid connection between the toggle portion 5311 and the first slot end, so that the flap 320 has a certain degree of free rotation ability. When the staff steps on the flap 320, it can drive the flap 320 to continue to flip outward and compress the first elastic member 540, effectively protecting the flap 320, so that the flap 320 can connect the uneven floor plane and the bottom of the car, ensuring smooth entry and exit of personnel and vehicles.

[0136] For example, in this embodiment, the second elastic member 560 is configured as a torsion spring, the rotating portion 310 has a mounting shaft, the mounting shaft and the secondary driven transmission sprocket 531 are coaxial, and the torsion spring is sleeved on the mounting shaft, and the two ends of the torsion spring are respectively in contact with the first groove end and the toggle portion 5311. Of course, in other embodiments, the second elastic member 560 can also be a rubber elastic body, a telescopic spring, etc.

[0137] like Figure 7 As shown, in some embodiments, the primary driven transmission sprocket 512 and the primary transmission gear 513 are integrated, and the secondary active transmission sprocket 532 and the secondary transmission gear 533 are integrated.

[0138] In some embodiments, the present application also provides an elevator, comprising a car as described in any of the above embodiments.

[0139] Since the above-mentioned car has the above-mentioned technical effects, the elevator including the car should have the same technical effects, which will not be repeated here.

[0140] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0141] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0142] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A car, characterized in that, The car comprises: a car assembly having a car door; A flap assembly, the flap assembly is located at the bottom of the car door, and the flap assembly is hinged to the car assembly; A driving assembly, the driving assembly comprising a door panel and a first transmission member, the door panel being detachably arranged on the car door, and the movement of the door panel enabling the car door to switch between at least an open state and a closed state; wherein the door panel is also connected to the flap assembly via the first transmission member, so that the movement of the door panel can drive the flap assembly to switch between a flipping state toward the outside of the car door and a flipping state toward the inside of the car door.

2. The car according to claim 1, wherein The door panel includes an upper door panel, a lower door panel and a second transmission member. The upper door panel is detachably arranged on the upper part of the car door, and the lower door panel is detachably arranged on the lower part of the car door. The upper door panel is connected to the lower door panel through the second transmission member, so that the movement of the upper door panel can drive the movement of the lower door panel, and the movement directions of the lower door panel and the upper door panel are opposite.

3. The car according to claim 2, characterized in that, The moving direction of the upper door panel is the height direction of the car; when the car door is in a closed state, the flap assembly is located on a side of the door panel close to the car door; the first transmission member includes: A rack and a gear, wherein the gear is rotatably arranged on the car assembly, the rack is arranged on the upper door panel, the rack is extended along the height direction of the car, and a separation section and a meshing section are provided on the moving path of the upper door panel, the separation section and the meshing section are sequentially arranged in the direction in which the upper door panel moves away from the car door, the rack and the gear located in the separation section are in a separation state, and the rack and the gear located in the meshing section are in a meshing state; wherein, in the direction in which the upper door panel moves away from the car door, the movement of the upper door panel in the separation section can form an avoidance space for the flap assembly to flip over between the upper door panel and the lower door panel respectively; A chain transmission mechanism, wherein the chain transmission mechanism has a power input sprocket and a power output sprocket, the power input sprocket is transmission-connected to the gear so that the rotation of the gear can drive the power input sprocket to rotate, and the power output sprocket is transmission-connected to the flap assembly so that the rotation of the power output sprocket can drive the flap assembly to flip.

4. The car according to claim 3, characterized in that, The chain transmission mechanism comprises a primary chain transmission mechanism, a secondary chain transmission mechanism and a transfer part, the transfer part is detachably connected to the car assembly, the primary chain transmission mechanism comprises a primary active transmission sprocket and a primary driven transmission sprocket, the primary active transmission sprocket is rotatably arranged on the car assembly, the primary driven transmission sprocket is rotatably arranged on the transfer part, the primary active transmission sprocket is the power output sprocket, and the primary active transmission sprocket is connected to the gear transmission; The secondary chain transmission mechanism comprises a secondary active transmission sprocket and a secondary driven transmission sprocket, the secondary active transmission sprocket is rotatably arranged on the adapter, the secondary driven transmission sprocket is rotatably arranged on the car assembly, the secondary active transmission sprocket is transmission-connected to the primary driven transmission sprocket, the secondary driven transmission sprocket is the power output sprocket, and the secondary driven transmission sprocket is transmission-connected to the flap assembly.

5. The car according to claim 4, characterized in that The transfer unit comprises: A base, the base is detachably connected to the car assembly, the base having a tension adjustment direction, a tensioning position and a first limit hole; A sliding seat, the primary driven transmission sprocket and the secondary active transmission sprocket are both rotatably arranged on the sliding seat, the sliding seat is slidably connected to the base, the sliding seat has a second limiting hole, the sliding seat can slide along the tension adjustment direction to adjust the tension of the chains of the primary chain transmission mechanism and the secondary chain transmission mechanism, and the tensioning station is located on the moving path of the sliding seat, when the sliding seat is located at the tensioning station, the chains of the primary chain transmission mechanism and the secondary chain transmission mechanism are both in a tensioned state; A limiting member is removably disposed through the first limiting hole and the second limiting hole to limit the sliding seat so that the sliding seat is in the tensioning position.

6. The car according to claim 5, characterized in that, The tension adjustment direction is the depth direction of the car, the adapter also includes a first elastic member, one end of the first elastic member is connected to an end of the base close to the car door, the other end of the first elastic member is connected to the sliding seat, the tensioning station is located at an end of the base away from the car door, and the primary active transmission sprocket and the secondary driven transmission sprocket are close to the car door; When the sliding seat is located at the tensioning station, the first elastic member is in an elastically deformed state, so that the first elastic member has a driving force acting on the sliding seat to move toward the car door.

7. The car according to claim 5, characterized in that, The sliding seat has a connecting portion, the second limiting hole is located in the connecting portion, and a limiting gap is defined between the connecting portion and the base; the side of the limiting member has a protruding portion, the protruding portion is located in the middle of the limiting member, and a side wall of the second limiting hole has a side hole portion, the protruding portion can pass through the side hole portion, the limiting member can be rotatably inserted into the first limiting hole and the second limiting hole, and the protruding portion is located in the limiting gap, wherein the rotation of the limiting member can cause the protruding portion and the side hole portion to be misaligned.

8. The car according to claim 3, characterized in that, The flap assembly comprises a flap and a guardrail, wherein the flap is rotatably arranged at the bottom of the car door, and the guardrails are respectively arranged on both sides of the flap, and the guardrails are located at the stepped end surface of the flap.

9. The car according to claim 3, characterized in that, The flap assembly includes a flap and a second elastic member, one side of the power output sprocket has a toggle portion, the flap has a rotating portion, the rotating portion is rotatably connected to the bottom of the car door, one end of the rotating portion has a toggle groove, the toggle portion is inserted into the toggle groove, and the toggle groove extends along the rotation direction of the toggle portion, the second elastic member is arranged in the toggle groove, in the rotation direction of the flap toward the car door, one end of the second elastic member abuts against the toggle portion, the other end of the second elastic member abuts against the upstream groove end of the toggle groove, and the toggle portion also abuts against the downstream groove end of the toggle groove.

10. An elevator, characterized in that, The elevator comprises the car according to any one of claims 1 to 6.

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