Elevator door assembly

Abstract

The present invention relates to the field of elevator technology, and specifically provides an elevator door assembly, comprising a door connector and a door lock, wherein a door knife actuator is provided on the door connector; the door lock is provided on one side of the door connector along a first direction, the first direction being parallel to the height direction of a target shaft; the door lock comprises a door locking seat, a locking transmission member, and a door locking member; the door locking seat is connected to the door connector, the locking transmission member is movably connected to the door locking seat, and the locking transmission member is transmission-connected to the door knife arm of the door knife actuator; the door locking member is rotationally connected to the door locking seat, and the door locking member is transmission-connected to the locking transmission member, and a first locking hook portion is provided on the door locking member, the first locking hook portion being used to cooperate with the target locking portion; the locking transmission member moves to lock or unlock the first locking hook portion with the target locking portion. The present invention effectively reduces the volume of the elevator door assembly in the depth direction of the elevator shaft, improves space utilization, and facilitates installation and transportation operations.

Description

Technical Field

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

[0002] Elevator doors are essential components of an elevator and are divided into car doors and landing doors. The car door is installed at the entrance and exit of the elevator car, while the landing doors are installed at the entrance and exit of each floor of the hoistway. While the elevator car is in motion, the car door and landing doors are closed to ensure passenger safety. When the elevator car is parked, the car door and corresponding landing doors open to allow entry and exit. To ensure safety, elevator doors are typically equipped with door locks. While the car is in motion, the door locks secure the door. Existing elevator doors are affected by the door locks, resulting in a large overall size relative to the depth of the elevator hoistway and low space utilization. This often makes installation impossible in the relatively small hoistway installation space. Summary of the Invention

[0003] An elevator door assembly provided by an embodiment of the present invention at least solves the problem that existing assemblies are large in size and have low space utilization in the depth direction of the elevator shaft, effectively reduces the volume of the elevator door assembly in the depth direction of the elevator shaft, improves space utilization, and facilitates installation and transportation operations.

[0004] The present invention provides an elevator door assembly, including a door connecting member, a door knife transmission device provided on the door connecting member; a door lock, wherein the door lock is provided on one side of the door connecting member along a first direction, and the first direction is parallel to the height direction of the target well; the door lock comprises a door locking seat, a locking transmission member and a door locking member; the door locking seat is connected to the door connecting member, the locking transmission member is movably connected to the door locking seat, the locking transmission member is transmission-connected to the door knife arm of the door knife transmission member; the door locking member is rotatably connected to the door locking seat, the door locking member is transmission-connected to the locking transmission member, a first locking hook portion is provided on the door locking member, and the first locking hook portion is used to cooperate with the target locking portion; wherein, the locking transmission member moves to lock or unlock the first locking hook portion with the target locking portion.

[0005] In one embodiment of the present invention, a first transmission part is provided on the locking transmission member, and a second transmission part is provided on the door knife arm, the second transmission part can move along the first direction relative to the first transmission part, and the second transmission part can rotate relative to the first transmission part; a first lifting hook abutment part is also provided on the door locking member; the door lock device also includes a locking lifting hook member, and the locking lifting hook member is rotatably connected to the locking transmission member; a third transmission part and a second lifting hook abutment part are provided on the locking lifting hook member; the second transmission part can move along the first direction relative to the third transmission part, and the second transmission part can rotate relative to the third transmission part; wherein, the movement of the locking transmission member drives the locking lifting hook member to rotate, and the first lifting hook abutment part abuts against the second lifting hook abutment part, causing the door locking member to rotate, so that the first lock hook part is locked or unlocked with the target locking part.

[0006] In one embodiment of the present invention, the door lock further comprises a first elastic member, which is respectively connected to the door locking seat and the locking transmission member, and the first elastic member is used to drive the locking transmission member to move relative to the door locking seat, so that the door lock switches from a locked state to an unlocked state; wherein, when the door lock is in the locked state, the first lock hook portion is locked with the target locking portion; when the door lock is in the unlocked state, the first lock hook portion is unlocked with the target locking portion.

[0007] In one embodiment of the present invention, the locking transmission member is provided with a first unlocking abutment; the door lock device further includes: a locking unlocking member rotatably connected to the door locking seat; the locking unlocking member is provided with a second unlocking abutment and a third unlocking abutment, wherein the second unlocking abutment is used to cooperate with the target unlocking member; wherein the working state of the locking unlocking member includes a limited state and an avoidance state; when the locking unlocking member is in the limited state, the second unlocking abutment is separated from the target unlocking part, and the third unlocking abutment abuts with the first unlocking abutment; when the locking unlocking member is in the avoidance state, the second unlocking abutment abuts with the target unlocking part, and the third unlocking abutment is separated from the first unlocking abutment; and a second elastic member is respectively connected to the door locking seat and the locking unlocking member; the second elastic member is used to drive the locking unlocking member to rotate so that the locking unlocking member switches from the avoidance state to the limited state.

[0008] In one embodiment of the present invention, along the second direction, limit adjustment screw holes are provided at both ends of the door locking seat, and limit adjustment bolts are provided in the limit adjustment screw holes. The limit adjustment bolts are threadedly connected to the limit adjustment screw holes, and the limit adjustment bolts are used to prevent the locking transmission member from moving relative to the door locking seat when in contact with the locking transmission member; the second direction is parallel to the moving direction of the locking transmission member.

[0009] In one embodiment of the present invention, a plurality of adjustment strip holes are further provided on the door locking member, and the plurality of adjustment strip holes are arranged in sequence along the first direction, and the extension direction of each adjustment strip hole is parallel to the second direction; an adjustment connecting member is provided in each adjustment strip hole, and the adjustment connecting member can move along the adjustment strip hole; the door lock also includes a door locking adjustment component, the door locking adjustment component is connected to the adjustment connecting member, and a second lock hook portion is provided on the door locking adjustment component, and the second lock hook portion is used to cooperate with the target locking portion.

[0010] In one embodiment of the present invention, it also includes a carrier; a guide member connecting the carrier; when there are multiple guide members, the multiple guide members are arranged in sequence along a third direction; the third direction is perpendicular to the second direction and the first direction respectively; along the third direction, the door connecting member is arranged between the first guide member and the carrier, and is movably connected to the first guide member, and the first guide member is the guide member at the head end of the third direction; the door knife actuator is provided on the first connecting surface of the door connecting member, and the first connecting surface is the surface of the door connecting member connected to the first guide member; or, along the third direction, the door connecting member is arranged between two adjacent guide members, and is movably connected to the second guide member, and the second guide member is the guide member of the two adjacent guide members of the door connecting member that is relatively far away from the first guide member along the third direction; the door knife actuator is provided on the second connecting surface of the door connecting member, and the second connecting surface is the surface of the door connecting member connected to the second guide member.

[0011] In one embodiment of the present invention, the door knife actuator includes two door knife links, and along a first direction, the two door knife links are respectively arranged on both sides of the target guide member, and the target guide member is a guide member connected to the door connecting member; each door knife link is rotatably connected to the door connecting member through a connecting rod bearing, and a connecting rod pin is provided at both ends of each door knife link; there are two door knife arms, and along a second direction, the two door knife arms are respectively arranged on both sides of the connecting rod bearing, and each door knife arm is rotatably connected to the two connecting pins; wherein, the locking transmission member moves and switches the working state of the door knife actuator; the working state of the door knife actuator includes an open state and a clamped state; when the door knife actuator is in the open state, the dimension between the two door knife arms along the second direction is a first dimension; when the door knife actuator is in the clamped state, the dimension between the two door knife arms along the second direction is a second dimension, and the second dimension is smaller than the first dimension.

[0012] In one embodiment of the present invention, it also includes a contact seat, which is arranged on the side of the door lock relatively away from the door connecting member along the first direction; the contact seat includes a first contact seat, which is connected to the target carrier; two contact seat sockets are provided on the first contact seat, and the two contact seat sockets are arranged at intervals along the third direction; a second contact seat is connected to the door connecting member; and two contact seat pins corresponding to the two contact seat sockets are provided on the second contact seat.

[0013] In one embodiment of the present invention, the door connector includes a first connector, the door knife actuator is arranged on the first connector, and the door lock seat is connected to the first connector; a second connector, along the first direction, the second connector is arranged on one side of the first connector, one end of the second connector is connected to one end of the first connector, and an extension direction of the second connector is at an angle to an extension direction of the first connector; and a third connector, along the first direction, the third connector is arranged on one side of the second connector, one end of the third connector is connected to the other end of the second connector, and an extension direction of the third connector is parallel to the extension direction of the first connector; a first connecting hole is provided on the third connector; the elevator door assembly also includes a door body, one end of the door body along the first direction is provided with a receiving portion and a connecting portion, and along the third direction, the receiving portion and the connecting portion are arranged in sequence; the third connector is arranged in the receiving portion, and a second connecting hole corresponding to the first connecting hole is provided on the connecting portion; and a door fastener, respectively connecting the first connecting hole and the second connecting hole.

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

[0015] The elevator door assembly of the present invention adjusts the positional relationship between the door lock and the door blade actuator, shifting their positions from being arranged sequentially along the hoistway depth as in the prior art to being staggered along the hoistway height. This allows full utilization of the ample space along the hoistway height, conserving space along the hoistway depth, and effectively improving space utilization. This makes it particularly suitable for elevator cars, significantly reducing the difficulty of component installation and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a structural schematic diagram of an elevator door assembly in a preferred embodiment of the present invention.

[0018] Figure 2 This is one of the structural diagrams of the door knife driver in the preferred embodiment of the present invention.

[0019] Figure 3 This is the second structural diagram of the door knife driver in the preferred embodiment of the present invention.

[0020] Figure 4 This is one of the structural diagrams of the door lock in the preferred embodiment of the present invention.

[0021] Figure 5 This is one of the partial structural diagrams of the door lock in the preferred embodiment of the present invention.

[0022] Figure 6 This is the second partial structural diagram of the door lock in the preferred embodiment of the present invention.

[0023] Figure 7 This is the third partial structural diagram of the door lock in the preferred embodiment of the present invention.

[0024] Figure 8 This is the second structural diagram of the door lock in the preferred embodiment of the present invention.

[0025] Figure 9 This is the fourth schematic diagram of the partial structure of the door lock in the preferred embodiment of the present invention.

[0026] Figure 10 2 is a perspective structural diagram of a door locking member in a preferred embodiment of the present invention.

[0027] Figure 11 This is one of the cross-sectional structural diagrams of the door connector in the preferred embodiment of the present invention.

[0028] Figure 12 This is the second schematic cross-sectional view of the door connector in the preferred embodiment of the present invention.

[0029] Figure 13 Schematic diagram of the exploded structure of the door connector in the preferred embodiment of the present invention.

[0030] Figure 14 This is the third schematic cross-sectional view of the door connector in the preferred embodiment of the present invention.

[0031] Figure 15 It is a structural diagram of the seat contactor in a preferred embodiment of the present invention.

[0032] Figure 16 It is a structural diagram of a driven synchronizer in a preferred embodiment of the present invention.

[0033] The above drawings include the following reference numerals:

[0034] D1, first direction; D2, second direction; D3, third direction;

[0035] 10. Door connector; 101. First connector; 102. Second connector; 103. Third connector; 1031. First connection hole; 104. Door connection surface; 1041. First connection surface; 1042. Second connection surface; 11. Driven connector; 111. Driven connection surface; 12. Connecting pulley;

[0036] 20. Door knife actuator; 21. Door knife arm; 211. Second transmission unit; 22. Door knife connecting rod; 23. Connecting rod bearing; 24. Connecting rod pin;

[0037] 30. Door lock; 31. Door lock seat; 311. Limit adjustment screw hole; 312. Limit adjustment bolt; 32. Locking transmission member; 321. First transmission part; 322. First unlocking abutment part; 33. Door locking member; 331. First lock hook part; 3311. Target locking part; 332. First lifting hook abutment part; 333. Adjustment bar hole; 334. Adjustment connecting member; 335. Locking limiting hole; 34. Locking lifting hook member; 341. Third transmission part; 342. Second lifting hook abutment part; 343. Lifting hook rotating shaft; 35. First elastic member; 36. Locking and unlocking member; 361. Second unlocking abutment part; 3611. Target unlocking part; 362. Third unlocking abutment part; 37. Second elastic member; 38. Door lock adjusting member; 381. Second lock hook part;

[0038] 40. Carrier; 41. First carrier; 411. Synchronous drive motor; 412. Synchronous drive belt; 42. Second carrier; 43. Third carrier;

[0039] 50. Guide member; 51. First guide member; 52. Second guide member; 53. Third guide member;

[0040] 60, contact seat; 61, first contact seat; 611, contact seat socket; 62, second contact seat; 621, contact seat pin;

[0041] 70. Door body; 71. Accommodating portion; 72. Connecting portion; 721. Second connecting hole; 73. Door fastener;

[0042] 80. Driven synchronizer; 81. Driven synchronous pulley; 82. Driven synchronous belt; 821. First belt portion; 822. Second belt portion. DETAILED DESCRIPTION

[0043] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0044] It should be noted that an elevator is a device used for vertical transportation. It is widely used in various buildings and provides convenience for people to move up and down the stairs.

[0045] Elevator doors are a crucial component of an elevator. They primarily consist of landing doors at the entrances and exits of the hoistway floors, and car doors on the elevator car. The car can rise and fall along the height of the hoistway. While the elevator car is in motion, the car door and landing doors are closed to ensure passenger safety. When the elevator car stops, the car door and corresponding landing doors open to allow passengers to enter and exit.

[0046] Conventional elevator doors typically open and close horizontally. Depending on the number of doors on a single track, elevator doors can be categorized as side-opening or center-opening. Side-opening doors have only one door on their track, and when opening and closing, both doors move in the same direction. Center-opening doors have two doors on their track, and when opening and closing, the two doors on the same track move in opposite directions.

[0047] The number of door sections varies between different elevator doors. Conventional elevator doors mostly use a bi-fold structure. For example, a center-split bi-fold elevator door has four door sections, divided into two groups of two. Of course, there are also multi-fold structures like tri-fold, side-opening doors with a single door section, and center-split doors with two doors.

[0048] To ensure the safety and stability of the elevator car during movement and prevent the door from accidentally opening, elevator doors are usually equipped with door locks. While the elevator car is in motion, the door locks are locked to prevent the door from moving or opening. Once the elevator car is in place, the door locks are unlocked before the door can move.

[0049] In existing elevator cars, the car door lock is usually arranged in the middle area of the car door blade arm along the height direction of the elevator shaft.

[0050] The elevator shaft is usually a rectangular space. The depth direction of the elevator shaft is from the inner wall of the hall door to the rear wall of the shaft. The elevator depth direction is perpendicular to the height direction and the width direction of the shaft.

[0051] The car door blade arm is a component used to cooperate with the door ball to achieve synchronous opening and closing between the car door and the landing door. Usually the car door blade arm is set on the car door hanging plate.

[0052] In addition to the car door blade arm, the car door panel typically also includes the door body, a pulley, and other components. The pulley and car door blade arm are located on opposite sides of the car door panel along the shaft's depth, while the car door lock is located between the car door blade arm and the panel. In some cases, a partition may be required between the car door blade arm and the lock to prevent interference.

[0053] Furthermore, the components of the entire assembly need to be arranged sequentially along the depth of the elevator shaft, resulting in large dimensions and low space utilization. For example, a conventional elevator door assembly can measure 100 to 150 mm along the shaft depth. This makes it difficult to install large components within the limited shaft installation space. Furthermore, these large components make transportation and handling difficult.

[0054] To solve the above problems, refer to Figure 1 As shown, the present invention provides an elevator door assembly, including a door connector 10 and a door latch 30 .

[0055] The door connector 10 is used to mount various components, such as the door body 70, the door blade actuator 20, and the door lock 30. The door body 70 is positioned on one side of the door connector 10 along a first direction D1 and is fixedly connected to the door connector 10. The door connector 10 is mounted on a guide member 50 and is movable relative to the guide member 50 in a second direction D2. The guide member 50 provides guidance for the movement of the door connector 10. Accordingly, the door body 70 moves synchronously with the door connector 10.

[0056] Taking a bifold door elevator as an example, when the elevator door needs to be closed, each door connector 10 moves along the second direction D2, so that the corresponding door bodies 70 remain offset, thereby closing the door and switching to the closed state. Conversely, the door bodies 70 remain overlapped, thereby opening the door and switching to the open state.

[0057] Preferably, the first direction D1 is parallel to the height direction of the hoistway, the second direction D2 is parallel to the width direction of the hoistway, and the third direction D3 is parallel to the depth direction of the elevator hoistway. It can be understood that the first direction D1, the second direction D2 and the third direction D3 are perpendicular to each other.

[0058] Preferably, the door connector 10 is configured as a plate-like structure, and includes a door connector surface 104, which is the surface of the plate-like door connector 10. Preferably, the normal vector of the door connector surface 104 is parallel to the third direction D3.

[0059] It can be understood that each door connector 10 is provided with a door connection surface 104 on both sides along the third direction D3. On this basis, the guide member 50 and the door blade actuator 20 can be respectively provided on both sides of the door connector 10 along the third direction D3. Preferably, the guide member 50 and the door blade actuator 20 are simultaneously provided on one side of the door connector 10 along the third direction D3.

[0060] Next, the door blade actuator 20 is disposed on the door-connecting surface 104 of the door connector 10. The door blade actuator 20 includes two door blade arms 21, which are the primary components for transmitting power between the door blade actuator 20 and the corresponding door ball actuator. The two door blade arms 21 can move toward or away from each other along a second direction D2, thereby switching the operating state of the door blade actuator 20 between an open state and a clamped state.

[0061] When the door blade actuator 20 is in the open state, the distance between the two door blade arms 21 along the second direction D2 is the first dimension. At this point, the elevator car corresponding to the door blade actuator 20 can move and rise relative to the hoistway along the first direction D1. When the door blade actuator 20 is in the clamped state, the distance between the two door blade arms 21 along the second direction D2 is the second dimension, which is smaller than the first dimension.

[0062] Preferably, the linkage ball on the corresponding hoistway floor door is sized to the second size in any direction perpendicular to the third direction D3 to match the door knife arm 21. The linkage ball belongs to the prior art, and those skilled in the art can set it according to actual needs, which will not be described in detail here.

[0063] After the car corresponding to the door knife actuator 20 is in place, the car stops moving relative to the hoistway, and the landing door of the corresponding hoistway floor can be opened and closed synchronously with the car door under the coordinated transmission of the door knife arm 21 and the linkage ball.

[0064] Different from the prior art, Figure 2 and Figure 3 As shown, in this embodiment of the present invention, the installation position of the door lock 30 is adjusted. Specifically, along the first direction D1, the door lock 30 is disposed on the side of the door connector 10 facing away from the door body 70. It will be appreciated that, along the first direction D1, the door lock 30 and the door body 70 are disposed on either side of the door connector 10.

[0065] The door lock 30 is mainly used for transmission and locking. The door lock 30 includes a door locking seat 31 , a locking transmission member 32 and a door locking member 33 .

[0066] Along the first direction D1, the door locking seat 31 is arranged on the side of the door connector 10 away from the door body 70, and the door locking seat 31 is connected to the door connector 10. Preferably, the door locking seat 31 and the door connector 10 are connected by bolts, nuts and other components.

[0067] By adjusting the positional relationship between the door lock member 33 and the door blade actuator 20, the two are positioned in a staggered manner along the first direction D1, rather than being arranged sequentially along the shaft depth as in the prior art. This allows full utilization of the ample space in the shaft height direction, saving space in the shaft depth direction, and effectively improving space utilization.

[0068] The locking transmission member 32 is movably connected to the door locking seat 31. Preferably, the moving direction of the locking transmission member 32 is parallel to the second direction D2. In some embodiments, the moving direction of the locking transmission member 32 can also be tilted and fine-tuned, for example, so that an acute angle is formed between the moving direction of the locking transmission member 32 and the second direction D2.

[0069] Preferably, the door lock base 31 is provided with two parallel guide rods, whose axes are parallel to the second direction D2. The locking transmission member 32 is slidably connected to the guide rods via linear bearings, thereby enabling movement relative to the door lock base 31 in the second direction D2. Linear bearings effectively reduce friction and ensure smooth movement of all components. They also make motion transmission more direct and efficient, with fast transmission feedback response.

[0070] In actual use, the locking transmission member 32 can be connected to the driving end of a corresponding driver, and the driver drives the locking transmission member 32 to move along the second direction D2. For example, the driver includes a synchronous drive motor.

[0071] The locking transmission member 32 is connected to the door knife arm 21 of the door knife transmission device 20. When the locking transmission member 32 moves, the door knife arm 21 also moves accordingly, thereby switching the working state of the door knife transmission device 20 between the open state and the clamped state.

[0072] Those skilled in the art can set the transmission mode between the two according to actual needs. Exemplarily, it is set to pin-slot transmission, with a pin set on one of the locking transmission member 32 and the door knife arm 21 and a pin slot set on the other.

[0073] The door locking member 33 is rotatably connected to the door locking seat 31. Preferably, the door locking member 33 is rotatably connected to the door locking seat 31 via a bearing, and the axial direction of the bearing is parallel to the third direction D3.

[0074] The door lock member 33 is in transmission connection with the locking transmission member 32. Those skilled in the art will be able to configure the transmission method between the two according to actual needs. For example, a pin-and-slot transmission is configured, with a pin provided on one of the door lock member 33 and the locking transmission member 32 and a pin slot provided on the other.

[0075] The door locking member 33 is provided with a first locking hook portion 331, which is configured to engage with a target locking portion 3311. Preferably, the target locking portion 3311 is fixedly mounted, for example, on the carrier 40 or on another door connector 10. After the car door is in position and closed, the first locking hook portion 331 and the target locking portion 3311 are used to lock the car door. Preferably, the first locking hook portion 331 is configured as a locking hook, and the target locking portion 3311 is configured as a locking block.

[0076] When the locking transmission member 32 moves, the door locking member 33 rotates relative to the door locking base 31, switching the operating state of the door lock 30 between a locked state and an unlocked state. When the door lock 30 is in the locked state, the first locking hook 331 is locked with the target locking portion 3311; when the door lock 30 is in the unlocked state, the first locking hook 331 is unlocked from the target locking portion 3311.

[0077] Preferably, when the door blade actuator 20 is in the open state, the door lock 30 remains in the locked state. When the door blade actuator 20 is in the clamped state, the door lock 30 can be switched between the locked state and the unlocked state under the drive of the locking transmission member 32.

[0078] For example, take the example of opening the door when the car reaches its destination:

[0079] First, refer to Figure 2 As shown, the locking transmission member 32 moves relative to the door locking seat 31. Under the drive of the locking transmission member 32, the door knife driver 20 switches its state from the original open state to the clamped state.

[0080] Secondly, refer to Figure 3 As shown, the locking transmission member 32 is initially moved into position, so that the door blade transmission device 20 is switched from the open state to the clamped state.

[0081] Then, refer to Figure 7 As shown, when the door knife actuator 20 has been switched to the clamping state, the locking transmission member 32 continues to move, causing the door locking member 33 to rotate relative to the door locking seat 31, so that the working state of the door lock 30 is switched from the locking state to the unlocking state.

[0082] Finally, the locking transmission member 32 moves into position, completely locking the first lock hook portion 331 with the target locking portion 3311. At this point, the door lock 30, the door blade transmission 20, and the door connector 10 can move synchronously along the second direction D2, thereby switching the states of the car door and the landing door and realizing door opening.

[0083] In summary, the elevator door assembly of the present invention adjusts the positional relationship between the door lock 33 and the door blade actuator 20, shifting their positions from being sequentially positioned along the hoistway depth as in the prior art to being staggered along the hoistway height. This allows full utilization of the ample space along the hoistway height, conserving space along the hoistway depth, and effectively improving space utilization. This makes it particularly suitable for elevator cars, significantly reducing the difficulty of component installation and transportation.

[0084] On the premise of effectively reducing the volume of the component in the direction of the shaft depth, it is necessary to consider how to ensure that the door lock 30 can work stably.

[0085] Reference Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, in some embodiments of the elevator door assembly of the present invention, the locking transmission member 32 is provided with a first transmission portion 321. Among the two door knife arms 21, one of the door knife arms 21 is provided with a second transmission portion 211.

[0086] The second transmission part 211 is in transmission connection with the first transmission part 321 . Specifically, the second transmission part 211 can move relative to the first transmission part 321 along the first direction D1 , and the second transmission part 211 can rotate relative to the first transmission part 321 .

[0087] Those skilled in the art can configure two transmission components based on actual needs. Preferably, the first transmission component 321 is configured as a transmission through hole, the opening of which is rectangular, with the length of the rectangle parallel to the first direction D1. The second transmission component 211 is configured as a transmission pin, which moves or rotates within the transmission through hole. Preferably, the axial direction of the transmission pin is parallel to the third direction D3.

[0088] By setting up this structure, compared with the existing technology, it can realize stable and reliable transmission while eliminating complex intermediate transmission components, making the overall structure more compact and small in size, and can effectively save the volume required in the first direction D1, with high space utilization and reduced failure risk.

[0089] The door lock member 33 is also provided with a first hook abutment portion 332. Preferably, the first hook abutment portion 332 is configured as an abutment pin, the axial direction of which is parallel to the third direction D3. The door lock 30 also includes a locking hook member 34, which is rotatably connected to the locking transmission member 32. Preferably, the locking hook member 34 is rotatably connected to the locking transmission member 32 via a hook shaft 343, the axial direction of which is parallel to the third direction D3. The locking hook member 34 is provided with a third transmission portion 341 and a second hook abutment portion 342.

[0090] The second transmission portion 211 is in transmission connection with the third transmission portion 341. Specifically, the second transmission portion 211 is movable relative to the third transmission portion 341 in the first direction D1, and the second transmission portion 211 is rotatable relative to the third transmission portion 341. Preferably, the third transmission portion 341 is also configured as a transmission through hole, and the opening of the transmission through hole is rectangular, with the length of the rectangle parallel to the first direction D1.

[0091] By setting up this structure, compared with the existing technology, it can realize stable and reliable transmission while eliminating complex intermediate transmission components, making the overall structure more compact and small in size, and can effectively save the volume required in the first direction D1, with high space utilization and reduced failure risk.

[0092] Then, the second lifting hook abutting portion 342 is kept in contact with the first lifting hook abutting portion 332. It can be understood that the two are relatively movable. Preferably, the second lifting hook abutting portion 342 is set as an abutting surface.

[0093] In actual use, take the example of opening the door when the car is in place:

[0094] First, refer to Figure 2 and Figure 4As shown, the locking transmission member 32 moves relative to the door locking seat 31. Since the locking transmission member 32 and the door blade arm 21 are connected via the first transmission portion 321 and the second transmission portion 211, the door blade actuator 20 also switches state from the original open state to the clamped state during the movement of the locking transmission member 32.

[0095] Secondly, refer to Figure 3 and Figure 5 Shown, locking transmission member 32 is initially moved into place, and door knife transmission device 20 is switched to clamped state from open state. At this moment, door knife blade arm 21 clamps the linkage ball of corresponding hoistway floor.

[0096] Next, refer to Figure 6 and Figure 7 As shown, the dimension between the door blade arm 21 has reached the second dimension and cannot be further reduced. At this time, if the locking transmission member 32 continues to move, the locking hook member 34 will rotate relative to the locking transmission member 32. It can be understood that in the process of rotating the locking hook member 34 relative to the locking transmission member 32, it also rotates relative to the door blade arm 21. When the locking hook member 34 rotates, the second hook abutting portion 342 applies a force to the first hook abutting portion 332, causing the door locking member 33 to rotate relative to the door locking seat 31, thereby unlocking the first lock hook portion 331 and the target locking portion 3311.

[0097] Finally, refer to Figure 8 As shown, the locking transmission member 32 moves into position, and the first lock hook portion 331 is completely unlocked from the target locking portion 3311. On this basis, the door lock 30, the door blade transmission 20, the door connector 10 and the corresponding door body 70 can all be driven by the corresponding drivers to move in the second direction D2, thereby switching the states of the car door and the landing door and realizing door opening.

[0098] By providing a door lock 30 with this structure, firstly, stable and reliable transmission between its components is achieved. Secondly, the overall structure is compact and compact, effectively reducing the volume required in the first direction D1, achieving high space utilization and reducing the risk of failure. Finally, by providing an improved transmission structure between the locking transmission member 32, the door lock member 33, the locking hook member 34, and the door blade arm 21, the locking transmission member 32 requires a shorter travel distance when switching between the door lock 30 and the door lock, compared to conventional car door locks. This helps reduce the volume of the assembly in the second direction D2, further improving space utilization.

[0099] Preferably, a locking limit hole 335 is further provided on the door locking member 33 to cooperate with the limit component on the door locking seat 31 to limit the rotation angle range of the door locking member 33.

[0100] When designing an elevator, safety is a key consideration. Since the elevator requires electrical drive when in use, when the power is cut off, the door body 70 that has lost its electrical drive is difficult to open, posing a potential safety hazard.

[0101] To solve the above problems, refer to Figure 4 As shown, in some embodiments of the elevator door assembly of the present invention, the door lock 30 further includes a first elastic member 35, which is respectively connected to the door lock base 31 and the locking transmission member 32. The first elastic member 35 is used to drive the locking transmission member 32 to move relative to the door lock base 31, thereby switching the door lock 30 from the locked state to the unlocked state.

[0102] Preferably, the first elastic member 35 is configured as a spring, which is sleeved on the guide rod of the door locking seat 31 .

[0103] When the car is in place but the locking transmission member 32 lacks the driver due to a power outage, causing the car door to close and be unable to open, the first elastic member 35 can simulate the driver and provide an elastic driving force to the locking transmission member 32. On this basis, rescuers or trapped people can more easily unlock the door lock 30, greatly improving the safety of the assembly.

[0104] At the same time, compared with conventional components in the prior art, by setting the first elastic member 35 and cooperating with the structure of the improved door lock 30, the distance between the first lock hook portion 331 and the target locking portion 3311 along the second direction D2 in the unlocked state can be effectively reduced, thereby reducing the volume of the component in the second direction D2 and improving space utilization.

[0105] In the prior art, due to the limited structure of the door blade and the car door lock, the car door lock often requires a long travel of the actuator to unlock. The actuator is the component that connects the door blade to the corresponding driver. To prevent direct contact between the first lock hook 331 and the target locking portion 3311 during the transition from the open state to the clamped state, thereby preventing the two from separating and unlocking, in the prior art, a relatively large gap of approximately 23 mm is typically maintained between the first lock hook 331 and the target locking portion 3311 when the car door is closed.

[0106] When the first elastic member 35 is provided, in conjunction with the door lock 30, the travel distance required for the locking transmission member 32 to be unlocked can be effectively shortened, thereby unlocking the door lock member 33. Furthermore, in the unlocked state, the distance between the first lock hook portion 331 and the target locking portion 3311 along the second direction D2 can also be reduced from the conventional 23 mm to approximately 5 mm.

[0107] Further, refer to Figure 10As shown, in some embodiments of the elevator door assembly of the present invention, the door locking member 33 is further provided with a plurality of adjustment strip holes 333. The plurality of adjustment strip holes 333 are sequentially arranged along the first direction D1, and the extension direction of each adjustment strip hole 333 is parallel to the second direction D2.

[0108] An adjusting connector 334 is provided in each adjusting strip hole 333. The adjusting connector 334 can be fixed after being moved along the adjusting strip hole 333. Preferably, the adjusting connector 334 is provided as a combination of a bolt and a nut.

[0109] The door lock 30 further includes a door lock adjustment component 38, which is connected to the adjustment connector 334. The door lock adjustment component 38 is provided with a second lock hook portion 381, which is used to cooperate with the target lock portion 3311. Preferably, the second lock hook portion 381 is configured as a lock hook.

[0110] By providing this structure, the distance between the first locking hook portion 331 and the target locking portion 3311 along the second direction D2 in the unlocked state can be flexibly and accurately adjusted.

[0111] Generally speaking, after the assembly structure is adjusted, the spacing between the first lock hook portion 331 and the target locking portion 3311 along the second direction D2 is set to approximately 5 mm. When the door lock adjustment component 38 is provided, the relative position of the door lock adjustment component 38 and the door lock member 33 can be adjusted so that the second lock hook portion 381 replaces the first lock hook portion 331 and cooperates with the target locking portion 3311.

[0112] On this basis, in the unlocked state, the spacing between the second lock hook portion 381 and the target locking portion 3311 along the second direction D2 can be flexibly adjusted within a range of 2 mm to 5 mm, thereby improving the reliability and safety of the door lock 30. Of course, other spacing sizes can also be set according to actual needs.

[0113] Considering that the structure of the door lock 30 can effectively reduce the volume, the locking transmission member 32 will move during the process of switching the car door from the open state to the closed state, causing the door lock member 33 to rotate and reset prematurely, affecting the normal closing of the car door. In order to solve the problem of the door lock member 33 rotating and resetting prematurely and affecting the normal operation of the component, refer to Figure 7 、 Figure 8 and Figure 9 As shown, in some embodiments of the elevator door assembly of the present invention, a first unlocking abutment 322 is provided on the locking transmission member 32 , and the door locker 30 further includes a locking and unlocking member 36 and a second elastic member 37 .

[0114] The locking and unlocking member 36 is rotatably connected to the door locking seat 31. Preferably, the two are rotatably connected by a pin, the axial direction of the pin being parallel to the third direction D3. The locking and unlocking member 36 is provided with a second unlocking abutment 361 and a third unlocking abutment 362. The second unlocking abutment 361 is used to cooperate with the target unlocking portion 3611.

[0115] Preferably, the target unlocking portion 3611 is fixedly disposed, for example, on the carrier 40 or on another door connector 10. The second unlocking abutment portion 361 abuts the target unlocking portion 3611 only when the door connector 10 corresponding to the door lock 30 is moved into position and the car door is switched to the closed state. Otherwise, the two separate.

[0116] Preferably, the first unlocking abutment portion 322 is configured as an abutment groove, the second unlocking abutment portion 361 is configured as an abutment block, the target unlocking portion 3611 is configured as a combination of a threaded hole and a screw, and the third unlocking abutment portion 362 is configured as an abutment rotating ball.

[0117] The locking and unlocking member 36 operates in two modes: a restricted state and an evasive state. When the locking and unlocking member 36 is in the restricted state, the second unlocking abutment portion 361 is separated from the target unlocking portion 3611, and the third unlocking abutment portion 362 abuts against the first unlocking abutment portion 322. At this point, the locking transmission member 32 is constrained by the locking and unlocking member 36 and cannot move in the opposite direction, thereby maintaining the door lock 30 in the unlocked state even when the car door is not closed.

[0118] When the locking and unlocking member 36 is in the avoidance state, the second unlocking abutment portion 361 abuts against the target unlocking portion 3611, and the third unlocking abutment portion 362 is separated from the first unlocking abutment portion 322. At this time, the car door has switched to the closed state, and the door locker 30 can switch between the locked state and the unlocked state.

[0119] The second elastic member 37 is connected to the door lock base 31 and the lock / unlock member 36. The second elastic member 37 is used to drive the lock / unlock member 36 to rotate, causing the lock / unlock member 36 to switch from the avoidance state to the restricted state. Preferably, the second elastic member 37 is configured as a torsion spring, which is sleeved around the corresponding pin of the lock / unlock member 36. One end of the torsion spring abuts the door lock base 31, and the other end locks the lock / unlock member 36.

[0120] When the second unlocking abutment portion 361 abuts against the target unlocking portion 3611 , the locking unlocking member 36 overcomes the elastic force of the second elastic member 37 and rotates relative to the door locking seat 31 , thereby separating the third unlocking abutment portion 362 from the first unlocking abutment portion 322 .

[0121] On the contrary, when the second unlocking abutment 361 is separated from the target unlocking portion 3611, the force of the target unlocking portion 3611 is lost, and the locking unlocking member 36 rotates in the opposite direction relative to the door locking seat 31 under the elastic force of the second elastic member 37, so that the third unlocking abutment 362 abuts against the first unlocking abutment 322, preventing the door locking member 33 from rotating.

[0122] This structure is compact and can effectively prevent the door locking member 33 from resetting prematurely, thereby ensuring that the door locking device 30 works safely, stably and reliably.

[0123] Reference Figure 4 As shown, in some embodiments of the elevator door assembly of the present invention, limit adjustment screw holes 311 are provided at both ends of the door locking seat 31 along the second direction D2, and limit adjustment bolts 312 are provided in the limit adjustment screw holes 311.

[0124] The limit adjustment bolt 312 is threadedly connected to the limit adjustment screw hole 311. The limit adjustment bolt 312 is used to prevent the locking transmission member 32 from moving relative to the door locking base 31 when it contacts the locking transmission member 32. As can be understood, when the locking transmission member 32 contacts the limit adjustment bolt 312, the locking transmission member 32 cannot move further toward the side where the limit adjustment bolt 312 is located.

[0125] By setting the structure, the movable stroke of the locking transmission member 32 can be adjusted by rotating the limit adjustment bolt 312, which is very convenient.

[0126] Although the volume of the assembly in the direction of the shaft depth is effectively reduced by adjusting the positional relationship between the door locking member 33 and the door blade actuator 20, there is still room for reducing the volume of the assembly.

[0127] In the prior art, the hanging plate connecting the door panel usually includes two surfaces. The surface adjacent to the guide rail is the first surface, on which a hanging pulley is provided, and the hanging plate slides back and forth on the guide rail via the hanging pulley. The surface opposite to the first surface is the second surface, on which components such as the door knife are provided. It can be understood that, taking the door knife as an example, the door knife and the hanging pulley are respectively provided on two different surfaces of the hanging plate. This results in the door knife, hanging plate, and hanging pulley each independently occupying a certain amount of space in the depth direction of the elevator shaft, resulting in a large volume and low space utilization.

[0128] In order to further reduce the volume of the assembly in the direction of the hoistway depth, the elevator door assembly of the present invention, in some embodiments, further includes a bearing member 40 and a guide member 50 .

[0129] The bearing member 40 is used to securely mount the guide member 50. In some embodiments, the bearing member 40 can be mounted on the elevator car to provide guidance for the car door via the guide member 50. In some specific embodiments, the bearing member 40 can be mounted on the wall of the elevator shaft entrance or exit to provide guidance for the landing door via the guide member 50. How to securely mount the bearing member 40 on the elevator car or wall is well known in the art and will not be further described.

[0130] Those skilled in the art can set the shape and material of the supporting member 40 according to actual needs to ensure that the supporting member 40 can maintain a stable and firm connection.

[0131] Preferably, the bearing member 40 is set as a door head back plate. Figure 1 As shown, the carrier includes a first carrier 41 , a second carrier 42 and a third carrier 43 .

[0132] The first carrier 41 is disposed on one side of the guide member 50 along the third direction D3. The second carrier 42 is disposed on one side of the guide member 50 along the first direction D1 and is connected to the first carrier 41. Two third carriers 43 are provided, one on each side of the guide member 50 along the second direction D2, and both third carriers 43 are connected to the first carrier 41.

[0133] Preferably, the door lock 30 is disposed between the door connecting member 10 and the second carrier 42 .

[0134] When the elevator door assembly is installed on the car, a synchronous drive motor 411 can be installed on the first carrier 41. The driving end of the synchronous drive motor 411 is in transmission connection with a synchronous drive belt 412. Thus, the driving end of the synchronous drive motor 411 drives the synchronous drive belt 412 to rotate in a clockwise or counterclockwise direction, thereby driving the door connector 10 and the locking transmission member 32 connected to the synchronous drive belt 412 to move, thereby achieving the opening and closing of the car door. Preferably, the driving end of the synchronous drive motor 411 is parallel to the third direction D3, and the synchronous drive belt 412 is connected to the locking transmission member 32 via a synchronous belt clamp.

[0135] By adopting this structure, compared with setting the floor doors as active doors, only one synchronous drive motor 411 is required on the car to drive the doors on each floor, and there is no need to install a motor on each floor door. This saves the space required for installation, reduces the volume, improves the overall space utilization, and effectively saves the cost of multiple motors.

[0136] The guide member 50 is connected to the carrier 40. Different elevator door assemblies utilize different connection methods for the guide member 50 and the carrier 40. For example, the guide member 50 can be connected to the corresponding third carrier 43 at both ends along the second direction D2. Alternatively, multiple connecting members, such as bolts, can be sequentially provided on the guide member 50 at intervals along the second direction D2 to connect the guide member 50 to the first carrier 41.

[0137] Those skilled in the art can set a specific guide member 50 structure according to actual needs to adapt to different door connectors 10 and door bodies 70. Preferably, the guide member 50 is set to be hollow along its length direction to reduce weight while increasing strength and improving bending resistance.

[0138] Those skilled in the art can adjust the number of guide members 50 according to actual needs, such as one, two, three, four, or five, to accommodate the installation and guidance requirements of different numbers of door connectors 10. Preferably, only two guide members 50 are provided, i.e., the elevator is configured as a side-opening bi-folding structure or a center-split bi-folding structure.

[0139] The guide member 50 is disposed on one side of the first carrier 41 along the third direction D3. If multiple guide members 50 are provided, the guide members 50 are sequentially disposed along the third direction D3. Those skilled in the art can adjust the relative positions of the guide members 50 according to actual needs. For example, the positions of the guide members 50 can be kept consistent in the first direction D1, or one or more guide members 50 can be staggered relative to the other guide members 50.

[0140] The same guide member 50 can provide guidance for only one door connector 10, or can provide guidance for two door connectors 10 at the same time. A door knife actuator 20 can be provided on each door connector 10, or can be provided on only one of the door connectors 10. In the case where two door connectors 10 are provided, and each door connector 10 is provided with a door knife actuator 20, preferably, only one door lock 30 is provided, and only the door knife arm 21 of one door knife actuator 20 is connected to the door lock member 33 of the door lock 30 in a transmission manner. The door knife arm of the other door knife actuator 20 can be connected to a transmission structure similar to the door lock 30 to achieve transmission. Exemplarily, the transmission structure includes components with similar structures to the door locking seat 31, the locking transmission member 32 and the first elastic member 35 of the door lock 30.

[0141] Preferably, a connecting pulley 12 is provided on the door connector 10, and the door connector 10 is slidably connected to the guide member 50 via the connecting pulley 12. Preferably, each door connector 10 is provided with four connecting pulleys 12, which are arranged at the four corners of a quadrilateral, preferably a rectangle or an isosceles trapezoid. The four connecting pulleys 12 are divided into two groups, each with two connecting pulleys. One group of connecting pulleys 12 is arranged on one side of the guide member 50 along the first direction D1, with its wheel surface abutting the upper portion of the guide member 50; the other two connecting pulleys 12 are arranged on the other side of the guide member 50 along the first direction D1, with their wheel surfaces abutting the lower portion of the guide member 50.

[0142] Preferably, the length extension direction of each guide member 50 is set to be parallel to the second direction D2. In some embodiments, the length extension direction of one or more guide members 50 can also have a certain angle relative to other guide members 50, as long as the angle does not affect the movement of the door body 70.

[0143] Because of the need for a door blade actuator 20, the door body 70 connected to the door connector 10 is typically a shutter. The shutter refers to the door body 70 mounted on the fast rail, and its travel distance is the longest among all the door bodies 70. When the elevator doors are opened and closed, the travel distances of the doors 70 vary, but they must open and close synchronously. Consequently, the doors 70 on the fast rails move relatively quickly.

[0144] In order to reduce the volume and improve space utilization, the position of the door connecting member 10 relative to the guide member 50 and the position of the door blade actuator 20 relative to the door connecting member 10 need to be adjusted.

[0145] Specifically, refer to Figure 11 As shown, in some embodiments, along the third direction D3, the door connector 10 is disposed between the first guide member 51 and the carrier 40, and the door connector 10 is movably connected to the first guide member 51. The first guide member 51 is the guide member 50 at the beginning of the third direction D3. To ensure that the door blade actuator 20 can be linked with the corresponding linkage ball, preferably, a single guide member 50 is provided, namely the first guide member 51.

[0146] The first connection surface 1041 of the door connector 10 is the door connection surface 104 at which the door connector 10 is connected to the first guide member 51. In addition to the connection pulley 12, the door blade actuator 20 is also provided on the first connection surface 1041 of the door connector 10.

[0147] With this structure, the door blade actuator 20 and the connecting pulley 12 are both mounted on the first connecting surface 1041 of the door connector 10, rather than being located on either side of the hanging plate as in the prior art. This effectively reduces the assembly's volume in the elevator shaft depth direction, improving space utilization and enabling optimal adaptation to limited hoistway space. The reduced assembly size facilitates transportation and installation, improving operational efficiency.

[0148] It is worth noting that, along the third direction D3, a certain gap should be provided between the door connecting member 10 and the first carrier 41 to avoid problems such as scratching between the two.

[0149] Reference Figure 12 As shown, in some embodiments, the elevator door assembly is provided with at least two guide members 50 , and along the third direction D3 , the door connector 10 is provided between two adjacent guide members 50 .

[0150] The second guide member 52 is the guide member 50 located relatively farther from the first guide member 51 along the third direction D3, of the two adjacent guide members 50 of the door connector 10. The door connector 10 is movably connected to the second guide member 52. The second connecting surface 1042 is the door-connecting surface 104 where the door connector 10 connects to the second guide member 52. The door blade actuator 20 is disposed on this second connecting surface 1042 of the door connector 10. It will be appreciated that, in addition to being connected to the pulley 12, the door blade actuator 20 is also disposed on the second connecting surface 1042 of the door connector 10.

[0151] This structure has the same effect as setting the door connecting member 10 on the first guide member 51, and both can effectively reduce the volume of the component, improve space utilization, and facilitate transportation and installation operations.

[0152] It is noteworthy that the door knife transmission device 20 should be kept away from other components to avoid affecting the use. For example, the door knife transmission device 20 can be set between the four connecting wheels 12 along the second direction D2.

[0153] Of course, the position adjustment structure of the door connector 10 and the guide member 50 is not limited to the door blade actuator 20, but can also be applied to the installation of a linkage ball, a driven synchronizer 80, etc. For example, in a center-split bi-fold elevator car door, after simultaneously adjusting the positions of the door blade actuator 20, the driven synchronizer 80, and the door connector 10, actual measurements show that the dimension of the elevator door assembly in the third direction D3 according to the embodiment of the present invention can be reduced to one-half to one-third of the conventional dimension.

[0154] For example, the driven synchronizer 80 is used to realize the synchronous transmission of the connecting members on different guide members 50, ensuring that the connecting members can switch states at the same time to realize the door opening and closing. Preferably, the connecting member has the same structure as the door connecting member 10.

[0155] Reference Figure 16 As shown, the driven synchronizer 80 is disposed on a driven connection surface 111 of the driven connecting member 11. The driven connecting member 11 is movably connected to the third guide member 53. The driven connection surface 111 is the surface where the driven connecting member 11 connects to the third guide member 53. Preferably, a connecting pulley 12 is disposed on the driven connection surface 111, and the driven connecting member 11 is connected to the third guide member 53 via the connecting pulley 12.

[0156] The third guide member 53 is any guide member 50 other than the guide member 50 at the end of the third direction D3. It can be understood that, depending on the number of guide members 50 in the component, the third guide member 53 can be the first guide member 51 or the second guide member 52.

[0157] The driven synchronizer 80 includes a driven synchronous belt 82 and two driven synchronous pulleys 81. Both driven synchronous pulleys 81 are rotatably connected to the corresponding driven connecting member 11. Preferably, the axis lines of the two driven synchronous pulleys 81 are parallel to the third direction D3. The two driven synchronous pulleys 81 are spaced apart along the second direction D2. The driven synchronous belt 82 is provided on the two driven synchronous pulleys 81 and includes a first belt portion 821 and a second belt portion 822. The first belt portion 821 and the second belt portion 822 are respectively provided on either side of the driven synchronous pulley 81 along the first direction D1.

[0158] The first belt portion 821 is fixedly connected to the carrier 40, and the second belt portion 822 is fixedly connected to a connector adjacent to the door and the current driven connector 11, which is relatively far away from the first guide member 51 along the third direction D3. This connector can be either the door connector 10 or another driven connector 11.

[0159] By setting up this structure, when the elevator door is opened or closed, different connecting parts can achieve synchronous movement under the action of the synchronous drive motor 411 and the corresponding transmission components, effectively reducing the volume of the components in the depth direction of the hoistway and improving space utilization.

[0160] Of course, in some other embodiments, if the current driven connecting member 11 is provided with connecting members on both sides along the third direction D3, then the first belt portion 821 can be connected to another driven connecting member 11 in addition to being connected to the supporting member 40 .

[0161] When the component is applied to the car to realize the opening and closing of the car door body 70, the relative positions of the door connector 10 and the guide member 50, as well as the relative positions of the door knife actuator 20 and the corresponding door connector 10 are adjusted, the structure of the door knife actuator 20 also needs to be adjusted.

[0162] Reference Figure 2 and Figure 3 As shown, in the elevator door assembly of the present invention, in some embodiments, the door knife actuator 20 further includes two door knife connecting rods 22.

[0163] Along the first direction D1, two door blade links 22 are respectively arranged on either side of a target guide member, which is a guide member 50 connected to the door connector 10, which can be a first guide member 51 or a second guide member 52. Each door blade link 22 is rotatably connected to the door connector 10 via a link bearing 23.

[0164] Along the second direction D2 , the two door knife arms 21 are respectively arranged on both sides of the connecting rod bearing 23 , and each door knife arm 21 is rotatably connected to the two door knife connecting rods 22 .

[0165] Under this structure, the two door knife connecting rods 22 and the two door knife arms 21 form a parallelogram-like structure, so that the door knife transmission device 20 can switch the working state and has good stability.

[0166] It should be noted that along the third direction D3, the target guide member is positioned between the door blade arm 21 and the door connector 10. The spacing between the various components along the third direction D3 should be appropriately set to avoid interference during operation. For example, along the third direction D3, the target guide member is configured to be smaller than the dimension between the door blade arm 21 and the door connector 10.

[0167] The door blade actuator 20 operates in two states: open and clamped. For example, consider a parallelogram. The centers of two opposing sides are fixed, and the sides are connected in a rotational manner. By moving one of the other two sides relative to the other, the distance between them can be adjusted.

[0168] When the door knife actuator 20 is in the open state, the dimension between the two door knife arms 21 along the second direction D2 is the first dimension. When the door knife actuator 20 is in the clamped state, the dimension between the two door knife arms 21 along the second direction D2 is the second dimension C2, which is smaller than the first dimension. Figure 8 The second dimension C2 is shown in FIG.

[0169] When the door knife actuator 20 is in the open state, the door knife arm 21 is separated from the corresponding door ball, and the car door and the landing door are both in the closed state. At this time, the car where the door knife actuator 20 is located can move along the first direction D1, thereby transporting the passengers in the car to the corresponding floor.

[0170] When the door knife transmission device 20 is in the clamping state, the door knife arm 21 clamps the corresponding door ball. At this moment, it is possible to cooperate with the door knife arm 21 to realize transmission so that the corresponding floor door can realize switching with the car door.

[0171] Preferably, in actual use, the state switching of the above components is achieved by the synchronous drive motor 411 cooperating with the synchronous drive belt 412.

[0172] For example, a synchronous drive motor 411 is provided on a first carrier 41 connected to the elevator car. A synchronous drive wheel is provided on the driving end of the synchronous drive motor 411. Meanwhile, another synchronous drive wheel is provided on one side of the synchronous drive motor 411 along the second direction D2. The synchronous drive wheel is rotationally connected to the first carrier 41. A synchronous drive belt 412 is sleeved on the two synchronous drive wheels.

[0173] In the case of a side-opening elevator door, only one door knife actuator 20 is provided on the car, and one door knife arm 21 is connected to the synchronous drive belt 412. The driving end of the synchronous drive motor 411 rotates, driving the synchronous drive belt 412 to rotate, thereby switching the door knife actuator 20 between an open state and a clamped state.

[0174] In the case of a center-split elevator door, at least one door blade actuator 20 is installed on the car. When only one door blade actuator 20 is provided, the two door connectors 10 on the target guide can achieve synchronized state switching by providing an additional synchronization linkage mechanism. When two door blade actuators 20 are provided, each door blade actuator 20 has a door blade arm 21 connected to a synchronous drive belt 412, ensuring that each door connector 10 and the door body 70 can move relatively close to or away from each other.

[0175] When the door blade actuator 20 is not switched to the clamped state, the car door and the corresponding landing door remain closed. When the door blade actuator 20 is switched to the clamped state, the car door can switch between the closed and open states. Correspondingly, the landing door can also switch between states under the drive of the door blade arm 21.

[0176] Preferably, along the second direction D2, the four connecting pulleys 12 on the door connecting surface 104 are divided into two groups. Preferably, the door blade transmission device 20 is arranged between the two groups of connecting pulleys 12 to improve structural stability.

[0177] In the prior art, conventional connecting rods and hanging plates, as well as blade arms and connecting rods, are generally connected by bearings for rotation, which are relatively large and have low space utilization.

[0178] In order to solve the above problems, further referring to Figure 2 As shown, in some embodiments, each door blade link 22 is provided with a link pin 24 at both ends, and each door blade arm 21 is rotatably connected to the two link pins 24. This structure can further reduce the volume of the assembly along the second direction D2, improving space utilization. Preferably, the axial direction of the link bearing 23 and the link pin 24 is parallel to the third direction D3.

[0179] Reference Figure 13 and Figure 14 As shown, in some embodiments of the elevator door assembly of the present invention, the door connector 10 includes a first connector 101 , a second connector 102 and a third connector 103 .

[0180] The door blade driver 20 and the connecting pulley 12 are both arranged on the door connecting surface 104 of the first connecting body 101 , and the door locking seat 31 is connected to the first connecting body 101 .

[0181] Along the first direction D1, the second connector 102 is disposed on one side of the first connector 101. Preferably, along the first direction D1, the second connector 102 and the second carrier 42 are respectively disposed on both sides of the first connector 101, and the door lock 30 is disposed between the first connector 101 and the second carrier 42.

[0182] One end of the second connector 102 is connected to one end of the first connector 101. An angle is formed between the extension direction of the second connector 102 and the extension direction of the first connector 101 to achieve avoidance, thereby reducing the volume of the door connector 10 in the third direction D3 and improving space utilization. Those skilled in the art can adjust the size of the angle according to actual needs, and this will not be described in detail here.

[0183] Along the first direction D1, the third connector 103 is disposed on one side of the second connector 102. As will be appreciated, along the first direction D1, the first connector 101 and the third connector 103 are respectively disposed on either side of the second connector 102. One end of the third connector 103 is connected to the other end of the second connector 102, and the extension direction of the third connector 103 is parallel to the extension direction of the first connector 101. A first connection hole 1031 is provided on the third connector 103.

[0184] The door body 70 is provided with a receiving portion 71 and a connecting portion 72 at one end thereof along the first direction D1. The receiving portion 71 and the connecting portion 72 are sequentially arranged along the third direction D3. Preferably, the receiving portion 71 is configured as a receiving cavity, the third connecting body 103 is disposed within the receiving portion 71, and the connecting portion 72 is provided with a second connecting hole 721 corresponding to the first connecting hole 1031.

[0185] The elevator door assembly further includes a door fastener 73, which is respectively connected to the first connection hole 1031 and the second connection hole 721. Preferably, the door fastener 73 is configured as a bolt.

[0186] This structure effectively reduces the space required for the connection structure between the door body 70 and the door connector 10 in the third direction D3 while facilitating assembly and disassembly, thereby reducing the assembly volume and improving space utilization. Furthermore, by adjusting the positions of the door blade actuator 20, the door connector 10, and the guide member 50, the assembly can be made more compact.

[0187] To ensure the stability and safety of the elevator car during operation, the car door and landing door must be in place and closed before the car can be raised or lowered. This is typically detected by a contact switch. However, in existing technology, the contact switch is not properly installed. This not only wastes installation space but also makes it easy for dust to enter the contact seat, causing the contact switch to fail. Furthermore, arc erosion is easily generated when the switch is engaged, causing the switch to fail or prematurely damage.

[0188] To solve the above problems, refer to Figure 4 、 Figure 10 and Figure 15 As shown, the elevator door assembly of the present invention, in some embodiments, further includes a contactor 60, which is arranged on a side of the door lock 30 relatively away from the door connector 10 along the first direction D1. The contactor 60 includes a first contactor 61 and a second contactor 62.

[0189] The first contact base 61 is fixedly connected to a target support member, preferably, the second support member 42. Two contact base receptacles 611 are provided on one side of the first contact base 61 along the second direction D2 to facilitate position detection in conjunction with the movement of the door connector 10. The two contact base receptacles 611 are spaced apart along the third direction D3.

[0190] The second contact base 62 is connected to the door connector 10; in some other embodiments, the second contact base 62 can also be connected to the door locking member 33. The second contact base 62 is provided with two contact pins 621 corresponding to the two contact sockets 611. When the contact pins 621 are inserted into the contact sockets 611, the corresponding door body 70 is in place. The principle of the contact base 60's in-place detection is well known in the art and will not be further described.

[0191] This structure changes the jacks, originally spaced apart along the height of the hoistway, to spaced apart along the third direction D3. This effectively reduces the size of the contactor 60 in the first direction D1. Combined with the positional adjustments between the door blade actuator 20, the door connector 10, and the guide 50, the overall assembly becomes more compact.

[0192] Secondly, the elevator shaft environment is relatively harsh, and a certain amount of dust foreign matter is arranged. By arranging this structure, the possibility that dust foreign matter enters the contact seat jack 611 can be effectively reduced, preventing the contact seat device 60 from losing effectiveness.

[0193] Finally, the two contact pins 621 can be inserted into the corresponding contact sockets 611 at the same time, ensuring the synchronization of engagement and the accuracy of the engagement angle, avoiding the generation of arcs and burning of pins and contact sockets when inserting and engaging one after another, thereby ensuring that the contact socket 60 can work well, extending its service life, and achieving multiple goals at one stroke.

[0194] On the other hand, an embodiment of the present invention further provides an elevator, comprising an elevator door assembly as described in any of the above embodiments. Since the elevator of the present invention comprises the elevator door assembly as described in the above embodiments, the elevator also has all the beneficial effects, which will not be described in detail.

[0195] The elevator door assembly can be used for both elevator car doors and hall doors. Depending on the number of door connectors 10 on the same guide member 50, the elevator can have a side-opening door or a center-opening door. Depending on the number of guide members 50, the elevator can have single-folding, bi-folding, or tri-folding doors.

[0196] Working principle:

[0197] Taking a center-split bi-fold elevator as an example, after the car moves into position, driven by the synchronous drive motor 411, the locking transmission member 32 moves along the second direction D2, and the door blade actuator 20 switches from the original open state to the clamped state.

[0198] When the locking transmission member 32 is initially moved into position, the door knife transmission device 20 is switched to the clamping state and clamps the linked door ball.

[0199] The locking transmission member 32 continues to move. At this time, since the size between the door knife arm 21 is already the second size and cannot be further reduced, the locking lifting hook member 34 rotates relative to the locking transmission member 32 and the door knife arm 21, and the second lifting hook abutment portion 342 applies a force to the first lifting hook abutment portion 332, causing the door locking member 33 to rotate relative to the door locking seat 31, thereby switching the door lock 30 from a locked state to an unlocked state.

[0200] The locking transmission member 32 moves into position and abuts against one of the limit adjustment bolts 312 on the door locking seat 31, completely unlocking the first lock hook portion 331 and the target locking portion 3311. On this basis, each door connecting member 10 is driven by the synchronous drive motor 411 to move in the second direction D2, thereby switching the state of the car door and the landing door and realizing door opening.

[0201] As the door connectors 10 move, the second unlocking abutment 361 of the locking / unlocking member 36 separates from the target unlocking portion 3611. Without the force of the target unlocking portion 3611, the locking / unlocking member 36 rotates relative to the door lock seat 31 under the elastic force of the second elastic member 37, causing the third unlocking abutment 362 to abut against the first unlocking abutment 322, thereby preventing the door lock member 33 from rotating and returning to its original position.

[0202] After the people on the elevator car and floor have finished entering and exiting, each door connecting member 10 is reset and closed under the drive of the synchronous drive motor 411. During the door closing process, the third unlocking abutment 362 abuts against the first unlocking abutment 322, preventing the door locking member 33 from rotating and resetting in advance.

[0203] After each door connector 10 is closed, the contact seat pin 621 is inserted into the corresponding contact seat hole 611, the second unlocking abutment 361 abuts against the target unlocking portion 3611, and the locking unlocking member 36 overcomes the elastic force of the second elastic member 37 and rotates relative to the door locking seat 31, thereby separating the third unlocking abutment 362 from the first unlocking abutment 322.

[0204] At this time, as the locking transmission member 32 moves, the door blade transmission device 20 switches to the open state, and the door locking member 33 switches to the locked state. Afterwards, the car can perform corresponding lifting and lowering movements.

[0205] It should be noted that the term "including" and its variations used in the embodiments of the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; and the term "some embodiments" means "at least some embodiments". The modifications of "one" and "a plurality of" mentioned in the embodiments of the present invention are illustrative and non-restrictive. Those skilled in the art should understand that unless the context clearly indicates otherwise, they should be understood as "one or more".

[0206] The various steps described in the method implementation schemes provided in the embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method implementation schemes may include additional steps and / or omit the steps shown. The scope of protection of the present invention is not limited in this respect.

[0207] The term "embodiment" in this specification refers to specific features, structures, or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. The various embodiments in this specification are described in a related manner, and the same or similar parts between the various embodiments are referenced to each other. In particular, for the embodiments of the device, equipment, and system, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts are referred to the partial description of the method embodiment.

[0208] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An elevator door assembly, characterized in that: include: A door connecting piece, wherein a door knife driver is provided on the door connecting piece; A door locker is provided on one side of the door connecting member along a first direction, wherein the first direction is parallel to the height direction of the target well; the door locker comprises a door locking seat, a locking transmission member, a locking lifting hook member, a first elastic member, a locking unlocking member, a second elastic member, and a door locking member; The door locking seat is connected to the door connecting member, the locking transmission member is movably connected to the door locking seat, and the locking transmission member is transmission-connected to the door knife arm of the door knife actuator; the locking transmission member is provided with a first transmission part and a first unlocking abutment part, and the door knife arm is provided with a second transmission part, the second transmission part is movable along the first direction relative to the first transmission part, and the second transmission part is rotatable relative to the first transmission part; The locking hook member is rotatably connected to the locking transmission member; the locking hook member is provided with a third transmission portion and a second hook abutting portion; the second transmission portion is movable along the first direction relative to the third transmission portion, and the second transmission portion is rotatable relative to the third transmission portion; The first elastic member is respectively connected to the door locking seat and the locking transmission member, and the first elastic member is used to drive the locking transmission member to move relative to the door locking seat, so that the door lock device switches from a locked state to an unlocked state; The lock and unlock member is rotatably connected to the door lock seat; the lock and unlock member is provided with a second unlocking abutment and a third unlocking abutment, the second unlocking abutment being used to cooperate with the target unlocking portion; the working state of the lock and unlock member includes a limited state and an avoidance state; when the lock and unlock member is in the limited state, the second unlocking abutment is separated from the target unlocking portion, and the third unlocking abutment abuts against the first unlocking abutment; When the locking and unlocking member is in the avoidance state, the second unlocking abutment portion abuts against the target unlocking portion, and the third unlocking abutment portion is separated from the first unlocking abutment portion; The second elastic member is respectively connected to the door locking seat and the locking and unlocking member; The second elastic member is used to drive the locking and unlocking member to rotate, so that the locking and unlocking member switches from the avoidance state to the limit state; The door locking member is rotatably connected to the door locking seat, and the door locking member is transmission-connected to the locking transmission member. The door locking member is provided with a first lock hook portion and a first lifting hook abutting portion, and the first lock hook portion is used to cooperate with the target locking portion; Among them, the movement of the locking transmission member drives the locking lifting hook member to rotate, and the first lifting hook abutting portion abuts against the second lifting hook abutting portion, causing the door locking member to rotate. When the door lock is in the locked state, the first locking hook portion is locked with the target locking portion; when the door lock is in the unlocked state, the first locking hook portion is unlocked with the target locking portion.

2. The elevator door assembly according to claim 1, characterized in that: Along the second direction, limit adjustment screw holes are provided at both ends of the door locking seat, and limit adjustment bolts are provided in the limit adjustment screw holes. The limit adjustment bolts are threadedly connected to the limit adjustment screw holes. The limit adjustment bolts are used to prevent the locking transmission member from moving relative to the door locking seat when in contact with the locking transmission member; the second direction is parallel to the moving direction of the locking transmission member.

3. The elevator door assembly according to claim 1, wherein: The door locking member is further provided with a plurality of adjustment strip holes, which are arranged in sequence along the first direction, and the extension direction of each adjustment strip hole is parallel to the second direction; an adjustment connecting member is provided in each adjustment strip hole, and the adjustment connecting member can move along the adjustment strip hole; The door lock device further includes a door locking adjustment component, the door locking adjustment component is connected to the adjustment connector, and a second lock hook portion is provided on the door locking adjustment component, and the second lock hook portion is used to cooperate with the target locking portion.

4. The elevator door assembly according to any one of claims 1 to 3, characterized in that: Also includes: bearing members; a guide member connected to the supporting member; when a plurality of the guide members are provided, the plurality of guide members are sequentially arranged along a third direction; the third direction is perpendicular to the second direction and the first direction respectively; Along the third direction, the door connecting member is disposed between the first guide member and the bearing member and is movably connected to the first guide member, the first guide member being the guide member at the head end of the third direction; the door knife actuator is disposed on the first connecting surface of the door connecting member, the first connecting surface being the surface of the door connecting member connected to the first guide member; or, Along the third direction, the door connecting member is arranged between two adjacent guide members and is movably connected to the second guide member. The second guide member is the guide member among the two adjacent guide members of the door connecting member, which is relatively far away from the first guide member along the third direction; the door knife transmission is provided on the second connecting surface of the door connecting member, and the second connecting surface is the surface of the door connecting member connected to the second guide member.

5. The elevator door assembly according to any one of claims 1 to 3, characterized in that: The door knife transmission device comprises: Two door knife connecting rods, along the first direction, the two door knife connecting rods are respectively arranged on both sides of the target guide member, and the target guide member is a guide member connected to the door connecting member; each door knife connecting rod is rotatably connected to the door connecting member through a connecting rod bearing, and each door knife connecting rod is provided with a connecting rod pin at both ends; There are two door knife arms, and along the second direction, the two door knife arms are respectively arranged on both sides of the connecting rod bearing, and each door knife arm is rotatably connected to the two connecting rod pins; In which, the locking transmission member moves and switches the working state of the door knife transmission; the working state of the door knife transmission includes an open state and a clamped state; when the door knife transmission is in the open state, along the second direction, the dimension between the two door knife arms is a first dimension; when the door knife transmission is in the clamped state, along the second direction, the dimension between the two door knife arms is a second dimension, and the second dimension is smaller than the first dimension.

6. The elevator door assembly according to any one of claims 1 to 3, characterized in that: It also includes a seat contactor, which is arranged on a side of the door locker relatively away from the door connecting member along the first direction; the seat contactor includes: A first contact seat is connected to the target carrier; the first contact seat is provided with two contact seat holes, and the two contact seat holes are spaced apart along the third direction; The second contact seat is connected to the door connecting piece; the second contact seat is provided with two contact seat pins corresponding to the two contact seat sockets.

7. The elevator door assembly according to any one of claims 1 to 3, characterized in that: The door connecting member comprises: a first connecting body, the door knife actuator is arranged on the first connecting body, and the door locking seat is connected to the first connecting body; A second connector, arranged on one side of the first connector along the first direction, one end of the second connector is connected to one end of the first connector, and an angle is formed between an extension direction of the second connector and an extension direction of the first connector; and a third connector, disposed on one side of the second connector along the first direction, one end of the third connector connected to the other end of the second connector, the extension direction of the third connector being parallel to the extension direction of the first connector; and a first connection hole being provided on the third connector; The elevator door assembly further comprises: A door body, wherein one end of the door body along the first direction is provided with a receiving portion and a connecting portion, and along the third direction, the receiving portion and the connecting portion are sequentially provided; the third connecting body is provided in the receiving portion, and the connecting portion is provided with a second connecting hole corresponding to the first connecting hole; and Door fasteners are respectively connected to the first connection hole and the second connection hole.

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