Elevator door assembly

Abstract

The invention relates to the technical field of elevators, in particular to an elevator door assembly which comprises a door connector and a door locker, and a door knife driver is arranged on the door connector; in the first direction, the door locker is arranged on one side of the door connecting piece, and the first direction is parallel to the height direction of the target hoistway; the door locking device comprises a door locking seat, a locking transmission piece and a door locking piece; the door locking seat is connected with the door connecting piece, the locking transmission piece is movably connected with the door locking seat, and the locking transmission piece is in transmission connection with a door knife arm of the door knife driver; the door locking piece is rotationally connected with the door locking seat, the door locking piece is in transmission connection with the locking transmission piece, and a first lock hook part is arranged on the door locking piece and used for being matched with the target locking part; and the locking transmission piece moves, so that the first lock hook part and the target locking part are locked or unlocked. The size of the elevator door assembly in the depth direction of the elevator shaft is effectively reduced, the space utilization rate is increased, and installation and transportation operation is facilitated.

Description

Technical Field

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

[0002] The elevator door is an important part of the elevator, which is divided into a car door and a landing door. The car door is installed at the entrance and exit of the elevator car, and the landing door is installed at the entrance and exit corresponding to each floor of the hoistway. During the movement of the elevator car, the car door and the landing door are closed to ensure the safety of personnel; when the elevator car stops, the car door and the corresponding landing door are opened for people to enter and exit. To ensure safety, door locks are usually installed on the elevator doors. During the movement of the car, the elevator doors are locked by the door locks. Affected by the door locks, the overall volume of the existing elevator doors in the depth direction of the elevator hoistway is large, and the space utilization rate is low. When facing a relatively small installation space in the hoistway, installation is often impossible. Summary of the Invention

[0003] An elevator door assembly provided by an embodiment of the present invention at least solves the problems that the existing assembly has a large volume in the depth direction of the elevator hoistway and low space utilization rate, effectively reduces the volume of the elevator door assembly in the depth direction of the elevator hoistway, improves the space utilization rate, and facilitates installation and transportation operations.

[0004] The present invention provides an elevator door assembly, including a door connector, on which a door knife driver is provided; a door lock, along a first direction, the door lock is arranged on one side of the door connector, and the first direction is parallel to the height direction of the target hoistway; the door lock includes a door lock seat, a locking transmission member and a door locking member; the door lock seat is connected to the door connector, the locking transmission member is movably connected to the door lock seat, and the locking transmission member is in transmission connection with the door knife arm of the door knife driver; the door locking member is rotatably connected to the door lock seat, the door locking member is in transmission connection with the locking transmission member, and a first locking hook portion is arranged on the door locking member, and the first locking hook portion is used to cooperate with a target locking portion; wherein, when the locking transmission member moves, the first locking hook portion is locked or unlocked with the target locking portion.

[0005] In an embodiment of the present invention, a first transmission part is provided on the locking transmission part, a second transmission part is provided on the door knife arm, the second transmission part is movable relative to the first transmission part along the first direction, and the second transmission part is rotatable relative to the first transmission part; a first hook abutting part is further provided on the door locking part; the door lock also includes a locking hook member, and the locking hook member is rotatably connected to the locking transmission part; a third transmission part and a second hook abutting part are provided on the locking hook member; the second transmission part is movable relative to the third transmission part along the first direction, and the second transmission part is rotatable relative to the third transmission part; wherein, the movement of the locking transmission part drives the locking hook member to rotate, and the first hook abutting part abuts against the second hook abutting part, so that the door locking part rotates, so that the first locking hook part is locked or unlocked with the target locking part.

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

[0007] In an embodiment of the present invention, a first unlocking abutting part is provided on the locking transmission part; the door lock further includes: a locking unlocking member, which is rotatably connected to the door lock seat; a second unlocking abutting part and a third unlocking abutting part are provided on the locking unlocking member, and the second unlocking abutting part is used to cooperate with the target unlocking part; wherein, the working state of the locking unlocking member includes a limiting state and an avoiding state; when the locking unlocking member is in the limiting state, the second unlocking abutting part is separated from the target unlocking part, and the third unlocking abutting part abuts against the first unlocking abutting part; when the locking unlocking member is in the avoiding state, the second unlocking abutting part abuts against the target unlocking part, and the third unlocking abutting part is separated from the first unlocking abutting part; and, a second elastic member, which is respectively connected to the door lock 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 is switched from the avoiding state to the limiting 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. A limit adjustment bolt is disposed in each of the limit adjustment screw holes, and the limit adjustment bolt is threadedly connected to the limit adjustment screw hole. When the limit adjustment bolt is used to contact the locking transmission member, it prevents the locking transmission member from moving relative to the door locking seat; 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. Along the first direction, the plurality of adjustment strip holes are sequentially arranged, and the extending direction of each adjustment strip hole is parallel to the second direction; an adjustment connecting member is disposed in each adjustment strip hole, and the adjustment connecting member is movable along the adjustment strip hole; the door lock also includes a door lock adjustment component, the door lock adjustment component is connected to the adjustment connecting member, and a second locking hook portion is provided on the door lock adjustment component, and the second locking hook portion is used to cooperate with the target locking portion.

[0010] In one embodiment of the present invention, it further includes a carrier; a guide member connected to the carrier; when there are a plurality of the guide members, the plurality of guide members are sequentially arranged along the 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 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; a door knife driver is disposed on the first connection surface of the door connecting member, and the first connection surface is the surface of the door connecting member connecting the first guide member; or, along the third direction, the door connecting member is disposed between two adjacent guide members and is movably connected to the second guide member, and the second guide member is the guide member among the two guide members adjacent to the door connecting member that is relatively far from the first guide member along the third direction; a door knife driver is disposed on the second connection surface of the door connecting member, and the second connection surface is the surface of the door connecting member connecting the second guide member.

[0011] In an embodiment of the present invention, the door knife driver includes two door knife linkages. Along a first direction, the two door knife linkages are respectively arranged on both sides of a target guide member, and the target guide member is a guide member connected to the door connection member; each door knife linkage is rotatably connected to the door connection member through a linkage bearing, and linkage pins are arranged at both ends of each door knife linkage; two door knife arms are provided, and along a second direction, the two door knife arms are respectively arranged on both sides of the linkage bearing, and each door knife arm is rotatably connected to the two linkage pins; wherein, the locking driver moves and switches the working state of the door knife driver; the working state of the door knife driver includes an open state and a clamping state; when the door knife driver 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 driver is in the clamping 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.

[0012] In an embodiment of the present invention, a contact seat is further included. Along the first direction, the contact seat is arranged on the side of the door lock relative to the side away from the door connection member; the contact seat includes a first contact seat connected to a target carrier; two contact seat jacks are arranged on the first contact seat, and the two contact seat jacks are spaced along a third direction; a second contact seat connected to the door connection member; and two contact seat pins corresponding to the two contact seat jacks are arranged on the second contact seat.

[0013] In an embodiment of the present invention, the door connection member includes a first connection body, on which the door knife driver is arranged, and the door lock seat is connected to the first connection body; a second connection body, along the first direction, the second connection body is arranged on one side of the first connection body, one end of the second connection body is connected to one end of the first connection body, and there is an included angle between the extending direction of the second connection body and the extending direction of the first connection body; and a third connection body, along the first direction, the third connection body is arranged on one side of the second connection body, one end of the third connection body is connected to the other end of the second connection body, and the extending direction of the third connection body is parallel to the extending direction of the first connection body; a first connection hole is arranged on the third connection body; the elevator door assembly further includes a door body, one end of the door body along the first direction is provided with a receiving portion and a connection portion, and along the third direction, the receiving portion and the connection portion are arranged in sequence; the third connection body is arranged in the receiving portion, and a second connection hole corresponding to the first connection hole is arranged on the connection portion; and a door fastener connecting the first connection hole and the second connection hole respectively.

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

[0015] For the elevator door assembly of the present invention, by adjusting the positional relationship between the door locking member and the door knife driver, the positional relationship between the two, which is arranged in sequence along the depth direction of the hoistway in the prior art, becomes misaligned in the height direction of the hoistway. On this basis, the sufficient space in the height direction of the hoistway can be fully utilized to save the space in the depth direction of the hoistway, effectively improving the space utilization rate. It is especially suitable for elevator carriages, effectively reducing the difficulty of component installation and transportation operations. 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 will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other embodiments based on these drawings without creative efforts. In the drawings:

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

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

[0019] Figure 3 is another schematic structural diagram of the door knife driver in a preferred embodiment of the present invention.

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

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

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

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

[0024] Figure 8 is another schematic structural diagram of the door lock in a preferred embodiment of the present invention.

[0025] Figure 9 is a fourth partial structural diagram of the door lock in a preferred embodiment of the present invention.

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

[0027] Figure 11 One of the schematic cross-sectional structures of the door connector in the preferred embodiment of the present invention.

[0028] Figure 12 Another one of the schematic cross-sectional structures of the door connector in the preferred embodiment of the present invention.

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

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

[0031] Figure 15 Schematic structure diagram of the contact seat in the preferred embodiment of the present invention.

[0032] Figure 16 Schematic structure diagram of the driven synchronizer in the preferred embodiment of the present invention.

[0033] Among them, the above-mentioned drawings include the following reference numerals:

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

[0035] 10, door connector; 101, first connecting body; 102, second connecting body; 103, third connecting body; 1031, first connecting hole; 104, door connection surface; 1041, first connection surface; 1042, second connection surface; 11, driven connecting piece; 111, driven connection surface; 12, connecting hanging wheel;

[0036] 20, door knife driver; 21, door knife arm; 211, second transmission part; 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 part; 321, first transmission part; 322, first unlocking abutting part; 33, door locking part; 331, first locking hook part; 3311, target locking part; 332, first lifting hook abutting part; 333, adjustment strip hole; 334, adjustment connecting piece; 335, locking limit hole; 34, locking lifting hook part; 341, third transmission part; 342, second lifting hook abutting part; 343, lifting hook rotating shaft; 35, first elastic part; 36, locking and unlocking part; 361, second unlocking abutting part; 3611, target unlocking part; 362, third unlocking abutting part; 37, second elastic part; 38, door lock adjustment component; 381, second locking 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; 51. First guide; 52. Second guide; 53. Third guide;

[0040] 60. Contactor; 61. First contact; 611. Contact jack; 62. Second contact; 621. Contact pin;

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

[0042] 80. Driven synchronizer; 81. Driven synchronous pulley; 82. Driven synchronous belt; 821. First belt part; 822. Second belt part. Detailed implementation mode

[0043] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the 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 set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

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

[0045] The elevator door is one of the important components of the elevator, which mainly includes the landing door arranged at the entrance and exit of the hoistway floor, and the car door arranged on the car. The car can move up and down along the height direction of the hoistway. During the movement of the elevator car, the car door and the landing door are closed to ensure the safety of personnel; when the elevator car stops, the car door and the corresponding landing door are opened for people to enter and exit.

[0046] Conventional elevator doors usually achieve opening and closing by horizontal movement. According to the number of door bodies on the same guide rail, elevator doors can be divided into side-opening elevator doors and center-opening elevator doors. Only one door body is arranged on the guide rail of the side-opening elevator door, and when opening and closing, each door body moves to the same side. Two door bodies are arranged on the guide rail of the center-opening elevator door, and when opening and closing, the two door bodies on the same guide rail move in opposite directions.

[0047] At the same time, there are also differences in the number of car door bodies of different elevators. Conventional elevator doors mostly adopt a double-fold structure. Take the center-opening double-fold elevator door as an example. It has a total of four door bodies, which are divided into two groups, with two in each group. Of course, there are also multi-fold structures such as triple-fold, side-opening of a single door body, and center-opening of two door bodies.

[0048] To ensure the safety and stability of the car during movement and prevent problems such as accidental opening of the car door, door locks are usually installed on the elevator door. During the movement of the car, the door locks are locked to prevent the car door from moving or opening; after the car arrives, the door locks are unlocked first, and then the car door can move.

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

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

[0051] The car door knife arm is a component used to cooperate with the door ball to realize the synchronous opening and closing between the car door and the landing door. Usually, the car door knife arm is arranged on the car door hanging plate.

[0052] In addition to the car door knife arm, components such as the car door body and hanging wheels are usually arranged on the car door hanging plate. Among them, along the depth direction of the shaft, the hanging wheel and the car door knife arm are arranged on two opposite surfaces of the car door hanging plate respectively, and the car door lock is arranged between the car door knife arm and the car door hanging plate. In some cases, in order to avoid interference between the car door knife arm and the car door lock, a partition may need to be additionally arranged between them.

[0053] On this basis, the components in the depth direction of the elevator shaft need to be arranged in sequence, with a large volume and low space utilization rate. Take the conventional elevator door assembly as an example. Its size in the shaft depth direction can reach 100mm to 150mm. This makes it difficult for the staff to install large-volume components when facing the limited installation space of the shaft. At the same time, the large-volume components also make it difficult to transport and handle.

[0054] To solve the above problems, as shown in Figure 1 the present invention provides an elevator door assembly, including a door connector 10 and a door lock 30.

[0055] The door connector 10 is used to install various components, such as the door body 70, the door knife driver 20, and the door lock 30. Among them, along the first direction D1, the door body 70 is arranged on one side of the door connector 10, and the door body 70 is fixedly connected to the door connector 10. The door connector 10 is arranged on the guide member 50, and the door connector 10 can move relative to the guide member 50 along the second direction D2, and the guide member 50 provides guidance for the movement of the door connector 10. Correspondingly, the door body 70 moves synchronously with the door connector 10.

[0056] Taking the double-fold door type 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 are misaligned with each other, realizing door closing and switching to the closed state. On the contrary, each door body 70 overlaps, realizing door opening and switching to the open state.

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

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

[0059] It can be understood that door connection surfaces 104 are arranged on both sides of each door connector 10 along the third direction D3. On this basis, the guide member 50 and the door knife driver 20 can be respectively arranged on both sides of the door connector 10 along the third direction D3. Preferably, the guide member 50 and the door knife driver 20 are simultaneously arranged on one side of the door connector 10 along the third direction D3.

[0060] Continuing, the door knife driver 20 is arranged on the door connection surface 104 of the door connector 10. The door knife driver 20 includes two door knife arms 21, and the door knife arms 21 are the main components for the door knife driver 20 to transmit power to the corresponding door ball driver. The two door knife arms 21 can move relatively closer or farther away along the second direction D2, so that the working state of the door knife driver 20 can be switched between the open state and the clamping state.

[0061] When the door knife driver 20 is switched to the open state, along the second direction D2, the dimension between the two door knife arms 21 is the first dimension. At this time, the car corresponding to the door knife driver 20 can move up and down relative to the hoistway along the first direction D1. When the door knife driver 20 is in the clamping state, along the second direction D2, the dimension between the two door knife arms 21 is the second dimension, and the second dimension is smaller than the first dimension.

[0062] Preferably, the linkage ball on the corresponding landing door of the hoistway is sized to a second dimension in any direction perpendicular to the third direction D3 to match the arm 21 of the door knife. 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 elaborated here.

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

[0064] Different from the prior art, referring to Figure 2 and Figure 3 As shown, in the 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 arranged on the side of the door connector 10 away from the door body 70. It can be understood that along the first direction D1, the door lock 30 and the door body 70 are respectively arranged on both sides of the door connector 10.

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

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

[0067] By adjusting the positional relationship between the door locking member 33 and the door knife actuator 20, the positional relationship between the two is changed from being arranged in sequence along the well depth direction in the prior art to being offset in the first direction D1. On this basis, the sufficient space in the well height direction can be fully utilized to save the space in the well depth direction, effectively improving the space utilization rate.

[0068] The locking transmission member 32 is movably connected to the door lock base 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 slightly adjusted obliquely. For example, an acute angle is formed between the moving direction of the locking transmission member 32 and the second direction D2.

[0069] Preferably, two parallel guide rods are arranged on the door lock base 31. The axial direction of the guide rods is parallel to the second direction D2. The locking transmission member 32 is slidably connected to the guide rods through linear bearings, so as to move relative to the door lock base 31 along the second direction D2. The linear bearings can effectively reduce friction, ensuring the smoothness of each component during movement. At the same time, the linear bearings also make the movement transmission more direct and efficient, and the transmission feedback response is very fast.

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

[0071] The locking transmission member 32 is in transmission connection with the knife arm 21 of the door knife driver 20. When the locking transmission member 32 moves, correspondingly, the knife arm 21 of the door knife also moves, so that the working state of the door knife driver 20 is switched between an open state and a clamping state.

[0072] Those skilled in the art can set the transmission mode between the two according to actual needs. Exemplarily, it is set as a pin-slot transmission. A pin is provided on one of the locking transmission member 32 and the knife arm 21 of the door knife, and a pin slot is provided 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 through a bearing, and the axial direction of the bearing is parallel to the third direction D3.

[0074] The door locking member 33 is in transmission connection with the locking transmission member 32. Those skilled in the art can set the transmission mode between the two according to actual needs. Exemplarily, it is set as a pin-slot transmission. A pin is provided on one of the door locking member 33 and the locking transmission member 32, and a pin slot is provided on the other.

[0075] A first locking hook portion 331 is provided on the door locking member 33, and the first locking hook portion 331 is used to cooperate with the target locking portion 3311. Preferably, the target locking portion 3311 is fixedly provided, for example, provided on the carrier 40 or provided on another door connecting member 10. After the car door arrives and closes, the car door is locked by the first locking hook portion 331 and the target locking portion 3311. Preferably, the first locking hook portion 331 is set as a locking hook, and the target locking portion 3311 is set as a locking block.

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

[0077] Preferably, when the door knife driver 20 is in the open state, the door lock 30 remains in the locked state. When the door knife driver 20 is in the clamping 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] Exemplarily, taking the car arriving and opening the door as an example:

[0079] First, as shown in Figure 2 When 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 will switch its state from the original open state to the clamping state.

[0080] Second, as shown in Figure 3 When the locking transmission member 32 is initially moved in place, the door knife driver 20 is switched from the open state to the clamping state.

[0081] Then, as shown in Figure 7 When the door knife driver 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 locked state to the unlocked state.

[0082] Finally, the locking transmission member 32 moves in place, so that the first locking hook portion 331 and the target locking portion 3311 are completely locked. At this time, the door lock 30, the door knife driver 20, and the door connecting member 10 can move synchronously along the second direction D2, thereby switching the states of the car door and the landing door to achieve door opening.

[0083] In summary, for the elevator door assembly described in the present invention, by adjusting the positional relationship between the door locking member 33 and the door knife driver 20, the positional relationship between the two is changed from being arranged in sequence along the depth direction of the hoistway in the prior art to being offset in the height direction of the hoistway. On this basis, the sufficient space in the height direction of the hoistway can be fully utilized to save the space in the depth direction of the hoistway, effectively improving the space utilization rate. It is especially suitable for elevator cars and effectively reduces the difficulty of component installation and transportation operations.

[0084] On the premise of effectively reducing the volume of the component in the depth direction of the hoistway, it is necessary to consider how to ensure the stable operation of the door lock 30.

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

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

[0087] Those skilled in the art can set two transmission parts according to actual needs. Preferably, the first transmission part 321 is set as a transmission through-hole, the orifice shape of the transmission through-hole is rectangular, and the length direction of the rectangle is parallel to the first direction D1. The second transmission part 211 is set as a transmission pin, so as to move or rotate within the transmission through-hole. Preferably, the axial direction of the transmission pin is parallel to the third direction D3.

[0088] By setting this structure, compared with the prior art, it can achieve stable and reliable transmission while eliminating complex intermediate transmission components, making the overall structure more compact, small in size, effectively saving the volume required in the first direction D1, having high space utilization rate, and reducing the risk of failure.

[0089] The door locking member 33 is further provided with a first hook abutting portion 332. Preferably, the first hook abutting portion 332 is set as an abutting pin, and its axial direction is parallel to the third direction D3. The door lock 30 further includes a locking hook member 34, and the locking hook member 34 is rotatably connected to the locking transmission member 32. Preferably, the locking hook member 34 is rotatably connected to the locking transmission member 32 through a hook rotating shaft 343, and the axial direction of the hook rotating shaft 343 is parallel to the third direction D3. The locking hook member 34 is provided with a third transmission part 341 and a second hook abutting portion 342.

[0090] Among them, the second transmission part 211 is in transmission connection with the third transmission part 341. Specifically, the second transmission part 211 can move along the first direction D1 relative to the third transmission part 341, and the second transmission part 211 can rotate relative to the third transmission part 341. Preferably, the third transmission part 341 is also set as a transmission through-hole, the orifice shape of the transmission through-hole is rectangular, and the length direction of the rectangle is parallel to the first direction D1.

[0091] By setting this structure, compared with the prior art, it can achieve stable and reliable transmission while eliminating complex intermediate transmission components, making the overall structure more compact, small in size, effectively saving the volume required in the first direction D1, having high space utilization rate, and reducing the risk of failure.

[0092] Subsequently, the second hook abutting portion 342 remains in abutment with the first hook abutting portion 332. It can be understood that the two can move relative to each other. Preferably, the second hook abutting portion 342 is set as an abutting surface.

[0093] In actual use, taking the example of the car arriving and the door opening:

[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 knife arm 21 are connected through the first transmission portion 321 and the second transmission portion 211, during the movement of the locking transmission member 32, the door knife actuator 20 will also switch states, switching from the original open state to the clamping state.

[0095] Secondly, referring to Figure 3 and Figure 5 As shown, the locking transmission member 32 is initially moved in place, causing the door knife actuator 20 to switch from the open state to the clamping state. At this time, the door knife arm 21 clamps the linkage ball of the corresponding hoistway floor.

[0096] Then, referring to Figure 6 and Figure 7 As shown, the dimension between the door knife arms 21 has become the second dimension and cannot be further reduced. At this time, if the locking transmission member 32 continues to move, the locking lifting hook member 34 will rotate relative to the locking transmission member 32. It can be understood that during the rotation of the locking lifting hook member 34 relative to the locking transmission member 32, it also rotates relative to the door knife arm 21. When the locking lifting 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, so that the first locking hook portion 331 and the target locking portion 3311 are unlocked.

[0097] Finally, referring to Figure 8 As shown, the locking transmission member 32 is moved in place, and the first locking hook portion 331 and the target locking portion 3311 are completely unlocked. On this basis, the door locking device 30, the door knife actuator 20, the door connecting member 10 and the corresponding door body 70 can all move along the second direction D2 under the drive of the corresponding driver, so as to switch the states of the car door and the landing door and achieve door opening.

[0098] By setting the door locking device 30 with this structure, first, stable and reliable transmission can be achieved between the components. Secondly, the overall structure is compact and small in size, which can effectively save the volume required in the first direction D1, has a high space utilization rate, and reduces the failure risk. Finally, by setting the improved transmission structure among the locking transmission member 32, the door locking member 33, the locking lifting hook member 34 and the door knife arm 21, compared with the car door lock in the prior art, when the door locking device 30 switches states, the travel required for the locking transmission member 32 to move is shorter, which helps to reduce the volume of the components in the second direction D2 and further improve the space utilization rate.

[0099] Preferably, a locking limit hole 335 is further provided on the door locking member 33 to cooperate with the limiting 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 issues need to be given top priority. Since the elevator is electrically driven during use, when the power is cut off, the door body 70 that loses power drive is difficult to open, posing a safety hazard.

[0101] To solve the above problems, referring 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, and the first elastic member 35 is respectively connected to the door lock seat 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 seat 31, so that the door lock 30 is switched from the locked state to the unlocked state.

[0102] Preferably, the first elastic member 35 is set as a spring, and it is sleeved on the guide rod of the door lock seat 31.

[0103] When the car is in place normally, but due to a power cut, the locking transmission member 32 lacks the drive of the driver, resulting in the car door being unable to open when it is closed. In this case, the first elastic member 35 can simulate the driver to provide an elastic driving force for the locking transmission member 32. On this basis, the rescue personnel or the trapped personnel can unlock the door lock 30 more easily, greatly improving the safety of the assembly.

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

[0105] In the prior art, limited by the structures of the door knife and the car door lock, the car door lock often requires a relatively long stroke of the transmission to be unlocked. Among them, the transmission is the component connecting the door knife and the corresponding driver. In order to prevent the first locking hook portion 331 and the target locking portion 3311 from directly contacting during the process of the door knife switching from the open state to the clamping state, which may cause them to be unable to separate and unlock, in the prior art, there is usually a certain interval between the first locking hook portion 331 and the target locking portion 3311 when the car door is closed, and the interval size is about 23 mm, which is relatively large.

[0106] However, in the case of setting the first elastic member 35 and cooperating with the door lock 30, the required moving stroke of the locking transmission member 32 can be effectively shortened to realize the unlocking of the door locking member 33. On this basis, the interval between the first locking hook portion 331 and the target locking portion 3311 along the second direction D2 in the unlocked state can also be reduced, from the conventional 23 mm to about 5 mm.

[0107] Furthermore, referring to Figure 10As shown, in some embodiments of the elevator door assembly of the present invention, a plurality of adjusting elongated holes 333 are further provided on the door locking member 33. Along the first direction D1, the plurality of adjusting elongated holes 333 are arranged in sequence, and the extending direction of each adjusting elongated hole 333 is parallel to the second direction D2.

[0108] An adjusting connecting member 334 is provided in each adjusting elongated hole 333, and the adjusting connecting member 334 can be fixed after moving along the adjusting elongated hole 333. Preferably, the adjusting connecting member 334 is set as a combination of a bolt and a nut.

[0109] The door lock 30 further includes a door lock adjusting member 38, and the door lock adjusting member 38 is connected to the adjusting connecting member 334. A second locking hook portion 381 is provided on the door lock adjusting member 38, and the second locking hook portion 381 is used to cooperate with the target locking portion 3311. Preferably, the second locking hook portion 381 is set as a locking hook.

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

[0111] Generally speaking, after the structure of the assembly is adjusted, the interval dimension between the first locking hook portion 331 and the target locking portion 3311 along the second direction D2 is set to about 5 mm. In the case of providing the door lock adjusting member 38, the relative position of the door lock adjusting member 38 and the door locking member 33 can be adjusted, so that the second locking hook portion 381 can replace the first locking hook portion 331 to cooperate with the target locking portion 3311.

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

[0113] Considering that although the structure of the door lock 30 effectively reduces the volume, during the process of the car door switching from the open state to the closed state, the locking transmission member 32 will move, resulting in the door locking member 33 rotating and resetting in advance, which affects the normal closing of the car door. In order to solve the problem that the premature rotation and reset of the door locking member 33 affect the normal operation of the assembly, 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 abutting portion 322 is provided on the locking transmission member 32, and the door lock 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, and the axial direction of the pin is parallel to the third direction D3. The locking and unlocking member 36 is provided with a second unlocking abutting portion 361 and a third unlocking abutting portion 362, and the second unlocking abutting portion 361 is used to cooperate with the target unlocking portion 3611.

[0115] Preferably, the target unlocking portion 3611 is fixedly arranged, for example, arranged on the carrier 40 or arranged on another door connecting member 10. Only when the door connecting member 10 corresponding to the door lock 30 moves in place and the car door is switched to the closed state, the second unlocking abutting portion 361 abuts against the target unlocking portion 3611. Conversely, the two are separated.

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

[0117] The working states of the locking and unlocking member 36 include a limiting state and an avoidance state. When the locking and unlocking member 36 is in the limiting state, the second unlocking abutting portion 361 is separated from the target unlocking portion 3611, and the third unlocking abutting portion 362 abuts against the first unlocking abutting portion 322. At this time, the locking transmission member 32 is restricted by the locking and unlocking member 36 and cannot move in the reverse direction, so that the door lock 30 remains in the unlocked state when the car door is not in the closed state.

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

[0119] The second elastic member 37 is respectively connected to the door locking seat 31 and the locking and unlocking member 36. The second elastic member 37 is used to drive the locking and unlocking member 36 to rotate, so that the locking and unlocking member 36 is switched from the avoidance state to the limiting state. Preferably, the second elastic member 37 is arranged as a torsion spring. The torsion spring is sleeved on the corresponding pin of the locking and unlocking member 36. One end of the torsion spring abuts against the door locking seat 31, and the other end abuts against the locking and unlocking member 36.

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

[0121] Conversely, when the second unlocking abutting portion 361 is separated from the target unlocking portion 3611, the acting force of the target unlocking portion 3611 is lost, and the locking and unlocking member 36 rotates reversely relative to the door locking seat 31 under the elastic acting force of the second elastic member 37, so that the third unlocking abutting portion 362 abuts against the first unlocking abutting portion 322 to prevent the door locking member 33 from rotating.

[0122] This structure is small in size and can well prevent the door locking member 33 from resetting in advance, ensuring the safe, stable and reliable operation of the door locking device 30.

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

[0124] Among them, the limit adjustment bolt 312 is threadedly connected with 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 seat 31 when contacting the locking transmission member 32. It can be understood that when the locking transmission member 32 contacts the limit adjustment bolt 312, the locking transmission member 32 cannot move further towards the side where the corresponding 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 depth direction of the hoistway is effectively reduced by adjusting the positional relationship between the door locking member 33 and the door knife actuator 20, there is still room for further reduction in the volume of the assembly.

[0127] In the prior art, the hanging plate connecting the door panels usually includes two surfaces. The surface adjacent to the guide rail is the first surface, and hanging wheels are arranged on the first surface. The hanging plate realizes reciprocating sliding on the guide rail through the hanging wheels. The surface opposite to the first surface is the second surface, and components such as the door knife are arranged on the second surface. It can be understood that taking the door knife as an example, the door knife and the hanging wheels are respectively arranged on two different surfaces of the hanging plate. This results in that in the depth direction of the elevator hoistway, the door knife, the hanging plate and the hanging wheels will each independently occupy a certain space, with a large volume and low space utilization rate.

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

[0129] The carrier 40 is used to fixedly install the guide member 50. In some embodiments, the carrier 40 can be installed on the elevator car to provide guidance for the car door through the guide member 50. In some special embodiments, the carrier 40 can be installed on the wall of the elevator hoistway entrance and exit, and the guide member 50 provides guidance for the landing door. How to fixedly install the carrier 40 on the elevator car or the wall belongs to the prior art and will not be elaborated here.

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

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

[0132] Among them, the first carrier 41 is arranged on one side of the guide member 50 along the third direction D3. The second carrier 42 is arranged on one side of the guide member 50 along the first direction D1 and is connected to the first carrier 41. There are two third carriers 43, which are respectively arranged on both sides 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 arranged between the door connecting member 10 and the second carrier 42.

[0134] When the elevator door assembly is arranged on the car, a synchronous drive motor 411 can be arranged on the first carrier 41. The drive end of the synchronous drive motor 411 is in transmission connection with the synchronous drive belt 412. Thus, through the drive end of the synchronous drive motor 411, the synchronous drive belt 412 is driven to rotate clockwise or counterclockwise, and then the door connecting member 10 and the locking transmission member 32 connected to the synchronous drive belt 412 are driven to move, realizing the opening and closing of the car door. Preferably, the drive 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 through a synchronous belt clip.

[0135] Adopting this structure, compared with setting the landing door as the active door, only one synchronous drive motor 411 needs to be arranged on the car to realize the drive of each landing door. There is no need to install a motor on each landing door, which not only saves the installation space, reduces the volume, improves the overall space utilization rate, but also effectively saves the cost of multiple motors.

[0136] The guide member 50 is connected to the carrier member 40. In different elevator door assemblies, the guide member 50 and the carrier member 40 may also have different connection methods. Exemplarily, both ends of the guide member 50 along the second direction D2 can be respectively connected to corresponding third carrier members 43, or connection components such as bolts can be sequentially and spacedly arranged on the guide member 50 along the second direction D2 to achieve the connection between the guide member 50 and the first carrier member 41.

[0137] Those skilled in the art can set the specific structure of the guide member 50 according to actual needs to adapt to different door connection members 10 and door bodies 70. Preferably, the guide member 50 is provided as hollow along its own length direction to increase strength and improve bending resistance while reducing weight.

[0138] Those skilled in the art can set the number of guide members 50 according to actual needs, such as one, two, three, four, five, etc., to adapt to the installation and guiding requirements of different numbers of door connection members 10. Preferably, only two guide members 50 are provided, that is, the elevator is set to a side-opening double-fold or center-opening double-fold structure.

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

[0140] The same guide member 50 can provide guidance for only one door connection member 10 or can also provide guidance for two door connection members 10 simultaneously. A door knife driver 20 can be arranged on each door connection member 10, or a door knife driver 20 can be arranged only on one of the door connection members 10. When two door connection members 10 are provided and a door knife driver 20 is arranged on each door connection member 10, preferably, only one door lock 30 is provided, and the door knife arm 21 of only one of the door knife drivers 20 is in driving connection with the door lock member 33 of the door lock 30. The door knife arm of the other door knife driver 20 can be connected to a driving structure similar to that of the door lock 30 to achieve driving. Exemplarily, the driving structure includes components similar to the door lock seat 31, the locking driving member 32, and the first elastic member 35 of the door lock 30.

[0141] Preferably, a connecting hanging wheel 12 is provided on the door connecting member 10, and the door connecting member 10 is slidably connected to the guiding member 50 through the connecting hanging wheel 12. Preferably, four connecting hanging wheels 12 are provided on each door connecting member 10, and the four connecting hanging wheels 12 are arranged at the four corners of a quadrilateral, and the quadrilateral is preferably a rectangle or an isosceles trapezoid. The four connecting hanging wheels 12 are divided into two groups, with two in each group. One group of connecting hanging wheels 12 is arranged on one side of the guiding member 50 along the first direction D1, and the wheel surface thereof abuts against the upper part of the guiding member 50; the other two connecting hanging wheels 12 are arranged on the other side of the guiding member 50 along the first direction D1, and the wheel surface thereof abuts against the lower part of the guiding member 50.

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

[0143] Since a door knife driver 20 needs to be provided, generally the door body 70 connected by the door connecting member 10 is a shutter door. Among them, the shutter door refers to the door body 70 arranged on a fast guide rail, and its moving stroke is the longest among all door bodies 70. When opening and closing the elevator door, there are differences in the moving strokes of all door bodies 70, but all door bodies 70 need to be opened and closed synchronously. On this basis, the moving speed of the door body 70 on the fast guide rail is also relatively fast.

[0144] In order to reduce the volume and improve the space utilization rate, the positions of the door connecting member 10 relative to the guiding member 50 and the door knife driver 20 relative to the door connecting member 10 need to be adjusted.

[0145] Specifically, referring to Figure 11 As shown, in some embodiments, along the third direction D3, the door connecting member 10 is arranged between the first guiding member 51 and the bearing member 40, and the door connecting member 10 is movably connected to the first guiding member 51. The first guiding member 51 is the guiding member 50 at the head end of the third direction D3. To ensure that the door knife driver 20 can be linked with the corresponding linkage ball, preferably, there is one guiding member 50, and the only guiding member 50 is the first guiding member 51.

[0146] The first connecting surface 1041 of the door connecting member 10 is the door connecting surface 104 where the door connecting member 10 connects to the first guiding member 51. Except for the connecting hanging wheel 12, the door knife driver 20 is also arranged on the first connecting surface 1041 of the door connecting member 10.

[0147] In the case of setting this structure, both the door knife driver 20 and the connecting sprocket 12 are arranged on the first connecting surface 1041 of the door connecting member 10, rather than being respectively arranged on both sides of the hanging plate as in the prior art. This can effectively save the volume of the components in the depth direction of the elevator hoistway, improve the space utilization rate, and thus can well adapt to the hoistway with limited space. When the volume of the components is reduced, it is convenient to transport and install the components, improving the operation efficiency.

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

[0149] Refer to Figure 12 As shown, in some embodiments, the elevator door assembly is provided with at least two guide members 50. Along the third direction D3, the door connecting member 10 is arranged between two adjacent guide members 50.

[0150] The second guide member 52 is the guide member 50 among the two guide members 50 adjacent to the door connecting member 10 that is relatively far from the first guide member 51 along the third direction D3. The door connecting member 10 is movably connected to the second guide member 52. The second connecting surface 1042 is the door connecting surface 104 of the door connecting member 10 for connecting the second guide member 52, and the door knife driver 20 is arranged on the second connecting surface 1042 of the door connecting member 10. It can be understood that except for the connecting sprocket 12, the door knife driver 20 is also arranged on the second connecting surface 1042 of the door connecting member 10.

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

[0152] It should be noted that attention should be paid to avoiding the door knife driver 20 from interfering with other components to avoid affecting the use. For example, the door knife driver 20 can be arranged between the four connecting sprockets 12 along the second direction D2.

[0153] Of course, the position adjustment structure of the door connecting member 10 and the guide member 50 is not only applicable to the door knife driver 20, but also applicable to the setting of linkage balls, driven synchronizers 80, etc. Exemplarily, in a center-opening double-fold elevator car door, after simultaneously adjusting the positions of the door knife driver 20, the driven synchronizer 80 and the door connecting member 10, through actual measurement, the size of the elevator door assembly described in the embodiment of the present invention in the third direction D3 can be reduced to one-half to one-third of the conventional size.

[0154] Exemplarily, taking the driven synchronizer 80 as an example for illustration, the driven synchronizer 80 is used to achieve synchronous transmission of the connecting members on different guiding members 50, ensuring that each connecting member can switch states simultaneously to realize door opening and closing. Preferably, the connecting member has the same structure as the door connecting member 10.

[0155] Referring Figure 16 As shown, the driven synchronizer 80 is disposed on the driven connection surface 111 of the driven connecting member 11. The driven connecting member 11 is movably connected to the third guiding member 53, and the driven connection surface 111 is the surface where the driven connecting member 11 connects to the third guiding member 53. Preferably, a connecting hanger wheel 12 is disposed on the driven connection surface 111, and the driven connecting member 11 is connected to the third guiding member 53 through the connecting hanger wheel 12.

[0156] The third guiding member 53 is any guiding member 50 other than the guiding member 50 at the end of the third direction D3. It can be understood that according to the different numbers of guiding members 50 in the assembly, the third guiding member 53 can be the first guiding member 51 or the second guiding member 52.

[0157] The driven synchronizer 80 includes a driven synchronous belt 82 and two driven synchronous wheels 81. Both of the two driven synchronous wheels 81 are rotatably connected to the corresponding driven connecting member 11. Preferably, the wheel axes of the two driven synchronous wheels 81 are parallel to the third direction D3. Along the second direction D2, the two driven synchronous wheels 81 are spaced apart. The driven synchronous belt 82 is disposed on the two driven synchronous wheels 81, and the driven synchronous belt 82 includes a first belt portion 821 and a second belt portion 822. Along the first direction D1, the first belt portion 821 and the second belt portion 822 are respectively disposed on both sides of the driven synchronous wheel 81.

[0158] Among them, the first belt portion 821 is fixedly connected to the carrier 40, and the second belt portion 822 is fixedly connected to the connecting member that is adjacent to the door and the current driven connecting member 11 and is relatively far from the first guiding member 51 along the third direction D3. This connecting member can be either the door connecting member 10 or another driven connecting member 11.

[0159] By setting this structure, when the elevator door is opened and closed, different connecting members can achieve synchronous movement under the action of the synchronous drive motor 411 and the corresponding transmission components. The volume of the assembly in the depth direction of the hoistway is effectively reduced, and the space utilization rate is improved.

[0160] Of course, in some other embodiments, if there are connecting members disposed on both sides of the current driven connecting member 11 along the third direction D3, in addition to connecting to the carrier 40, the first belt portion 821 can also be connected to another driven connecting member 11.

[0161] When applying the component to the car to realize the opening and closing of the car door body 70, since the relative positions of the door connecting member 10 and the guiding member 50, and the relative position of the door knife driver 20 and the corresponding door connecting member 10 are adjusted, the structure of the door knife driver 20 also needs to be adjusted.

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

[0163] Along the first direction D1, the two door knife connecting rods 22 are respectively arranged on both sides of the target guiding member, and the target guiding member is the guiding member 50 connected to the door connecting member 10, which can be the first guiding member 51 or the second guiding member 52. Each door knife connecting rod 22 is rotatably connected to the door connecting member 10 through a connecting rod 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] In 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 driver 20 can switch its working state and has good stability.

[0166] It should be noted that along the third direction D3, the target guiding member is arranged between the door knife arm 21 and the door connecting member 10, and the spacing between the components along the third direction D3 should be reasonably set to avoid interference during the operation of the components. Exemplarily, along the third direction D3, the size of the target guiding member is set to be smaller than the size between the door knife arm 21 and the door connecting member 10.

[0167] The working states of the door knife driver 20 include an open state and a clamping state. Taking a parallelogram as an example, fix the centers of two opposite sides of the parallelogram and set the sides to be rotatably connected. At this time, move one of the other two sides relative to the other side, and the spacing between these two sides can be adjusted.

[0168] When the door knife driver 20 is in the open state, along the second direction D2, the size between the two door knife arms 21 is the first size. When the door knife driver 20 is in the clamping state, along the second direction D2, the size between the two door knife arms 21 is the second size C2, and the second size C2 is smaller than the first size. In Figure 8 the second size C2 is shown.

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

[0170] When the door knife driver 20 is in the clamped state, the door knife arm 21 clamps the corresponding door ball. At this time, transmission can be achieved through the cooperation of the door knife arm 21 and the door ball, so that the corresponding landing door can be opened and closed together with the car door.

[0171] Preferably, during 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] Exemplarily, a synchronous drive motor 411 is provided on the first carrier 41 connecting the car. A synchronous drive wheel is provided on the drive end of the synchronous drive motor 411. At the same time, along the second direction D2, another synchronous drive wheel is also provided on one side of the synchronous drive motor 411, and this synchronous drive wheel is rotatably connected to the first carrier 41. The synchronous drive belt 412 is sleeved on the two synchronous drive wheels.

[0173] When the elevator door is a side-opening type, only one door knife driver 20 is provided on the car, and one door knife arm 21 is connected to the synchronous drive belt 412. The drive end of the synchronous drive motor 411 rotates, driving the synchronous drive belt 412 to rotate, so as to switch the door knife driver 20 between the open state and the clamped state.

[0174] When the elevator door is a center-opening type, at least one door knife driver 20 is provided on the car. When only one door knife driver 20 is provided, the two door connectors 10 on the target guide member can achieve synchronous state switching by setting an additional synchronous linkage mechanism. When two door knife drivers 20 are provided, one door knife arm 21 of each of the two door knife drivers 20 is connected to the synchronous drive belt 412 to ensure that each door connector 10 and the door body 70 can move relatively closer or relatively farther away.

[0175] Before the door knife driver 20 is switched to the clamped state, both the car door and the corresponding landing door remain in the closed state. When the door knife driver 20 is switched to the clamped state, the car door can be switched between the closed state and the open state. Correspondingly, the landing door can be driven by the door knife arm 21 to achieve state switching together.

[0176] Preferably, along the second direction D2, the four connecting hanging wheels 12 on the door connection surface 104 are divided into two groups. Preferably, the door knife driver 20 is arranged between the two groups of connecting hanging wheels 12 to improve the structural stability.

[0177] In the prior art, conventional connecting rods and suspension plates, as well as between the cutter arm and the connecting rod, usually achieve rotational connection by using bearings. The volume of the bearings is relatively large, and the space utilization rate is low.

[0178] To solve the above problems, further, with reference to Figure 2 As shown, in some embodiments, connecting rod pins 24 are provided at both ends of each door cutter connecting rod 22, and each door cutter arm 21 is rotatably connected to the two connecting rod pins 24. By setting this structure, the volume of the component along the second direction D2 can be further reduced, and the space utilization rate can be improved. Preferably, the axial directions of the connecting rod bearings 23 and the connecting rod pins 24 are parallel to the third direction D3.

[0179] With reference to Figure 13 and Figure 14 As shown, in some embodiments of the elevator door assembly of the present invention, the door connecting member 10 includes a first connecting body 101, a second connecting body 102, and a third connecting body 103.

[0180] The door cutter driver 20 and the connecting hanging wheel 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 connecting body 102 is arranged on one side of the first connecting body 101. Preferably, along the first direction D1, the second connecting body 102 and the second carrier 42 are respectively arranged on both sides of the first connecting body 101, and the door lock 30 is arranged between the first connecting body 101 and the second carrier 42.

[0182] One end of the second connecting body 102 is connected to one end of the first connecting body 101. There is an included angle between the extending direction of the second connecting body 102 and the extending direction of the first connecting body 101 for the purpose of avoidance, so as to reduce the volume of the door connecting member 10 in the third direction D3 and improve the space utilization rate. Those skilled in the art can set the size of the included angle according to actual needs, which will not be elaborated here.

[0183] Along the first direction D1, the third connecting body 103 is arranged on one side of the second connecting body 102. It can be understood that along the first direction D1, the first connecting body 101 and the third connecting body 103 are respectively arranged on both sides of the second connecting body 102. One end of the third connecting body 103 is connected to the other end of the second connecting body 102, and the extending direction of the third connecting body 103 is parallel to the extending direction of the first connecting body 101. A first connecting hole 1031 is provided on the third connecting body 103.

[0184] One end of the door body 70 along the first direction D1 is provided with a receiving portion 71 and a connecting portion 72. Along the third direction D3, the receiving portion 71 and the connecting portion 72 are arranged in sequence. Preferably, the receiving portion 71 is arranged as a receiving cavity, the third connecting body 103 is arranged in the receiving portion 71, and a second connecting hole 721 corresponding to the first connecting hole 1031 is arranged on the connecting portion 72.

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

[0186] By setting this structure, on the premise of facilitating disassembly and connection, the space required for the connection structure between the door body 70 and the door connector 10 in the third direction D3 can be effectively reduced, the volume of the assembly is reduced, and the space utilization rate is improved. Cooperating with the position adjustment among the door knife driver 20, the door connector 10, and the guide member 50 can make the overall assembly more compact.

[0187] In order to ensure the stability and safety of the elevator car during operation, usually after the car door and the landing door are in place and switched to the closed state, the car can move up and down. Usually, the in-place detection of the car door and the landing door is realized by a contact seat switch. However, in the prior art, the installation position of the contact seat switch is not reasonable. This not only causes waste of installation space, but also makes it easy for dust to enter the contact seat, resulting in the failure of the contact seat switch. In addition, arc ablation is likely to occur when the switch meshes, causing the switch to fail or be damaged in advance.

[0188] To solve the above problems, referring to Figure 4 、 Figure 10 and Figure 15 shown, in some embodiments of the elevator door assembly of the present invention, it further includes a contact seat 60. Along the first direction D1, the contact seat 60 is arranged on the side of the door lock 30 opposite to the door connector 10. The contact seat 60 includes a first contact seat 61 and a second contact seat 62.

[0189] The first contact seat 61 is fixedly connected to the target carrier. Preferably, the target carrier is arranged as the second carrier 42. Two contact seat jacks 611 are arranged on one side of the first contact seat 61 along the second direction D2 to cooperate with the movement of the door connector 10 to realize in-place detection. Along the third direction D3, the two contact seat jacks 611 are arranged at intervals.

[0190] The second contact seat 62 is connected to the door connector 10; in some other embodiments, the second contact seat 62 can also be connected to the door lock 33. Two contact seat pins 621 corresponding to the two contact seat jacks 611 are arranged on the second contact seat 62. When the contact seat pins 621 are inserted into the contact seat jacks 611, it means that the corresponding door body 70 is in place. The in-place detection principle of the contact seat 60 belongs to the prior art and will not be elaborated here.

[0191] By setting this structure, the jacks that were originally arranged at intervals along the height direction of the hoistway are adjusted to be arranged at intervals along the third direction D3. First of all, it can effectively reduce the volume of the contactor 60 in the first direction D1. In cooperation with the position adjustment among the door knife driver 20, the door connecting piece 10, and the guiding piece 50, the overall assembly can be made more compact.

[0192] Secondly, the elevator hoistway environment is relatively harsh, with a certain amount of dust and foreign objects. By setting this structure, the possibility of dust and foreign objects entering the contact jack 611 can be effectively reduced, preventing the contactor 60 from failing.

[0193] Finally, the two contact pins 621 can be inserted into the corresponding contact jacks 611 simultaneously, ensuring high synchronism of meshing and accuracy of meshing angle, avoiding the generation of electric arcs during sequential insertion and meshing, burning and ablating the pins and the contacts, thereby ensuring that the contactor 60 can work well, extending its service life, and achieving multiple benefits at once.

[0194] On the other hand, the embodiment of the present invention also provides an elevator, including the elevator door assembly described in any one of the above embodiments. For the elevator of the present invention, since it includes the elevator door assembly described in the above embodiments, all the beneficial effects it has are also possessed by the elevator, which will not be elaborated here.

[0195] Among them, the elevator door assembly can be applied to the car door of the elevator and can also be applied to the landing door of the elevator. According to the different numbers of door connecting pieces 10 on the same guiding piece 50, the elevator can be a side-opening door or a center-opening door. According to the different numbers of guiding pieces 50, the elevator can be a single-fold door, a double-fold door, a triple-fold door, etc.

[0196] Working principle:

[0197] Taking the center-opening double-fold elevator as an example, after the car moves into place, under the drive of the synchronous drive motor 411, the locking transmission member 32 moves along the second direction D2, and the door knife driver 20 switches from the original open state to the clamping state.

[0198] When the locking transmission member 32 is initially in place, the door knife driver 20 switches to the clamping state and clamps the linkage door ball.

[0199] The locking transmission member 32 continues to move. At this time, since the dimension between the door knife arms 21 has reached the second dimension and cannot be further reduced, the locking hook member 34 rotates relative to the locking transmission member 32 and the door knife arms 21, and 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, so that the door lock 30 switches from the locked state to the unlocked state.

[0200] The locking transmission member 32 moves into place and abuts against one of the limit adjusting bolts 312 on the door locking seat 31, and the first locking hook portion 331 is completely unlocked from the target locking portion 3311. On this basis, each door connecting member 10 will move along the second direction D2 under the drive of the synchronous drive motor 411, so as to switch the states of the car door and the landing door and realize door opening.

[0201] Due to the movement of each door connecting member 10, the second unlocking abutting portion 361 of the locking and unlocking member 36 is separated from the target unlocking portion 3611. Losing the acting force of the target unlocking portion 3611, the locking and unlocking member 36 rotates relative to the door locking seat 31 under the elastic acting force of the second elastic member 37, so that the third unlocking abutting portion 362 abuts against the first unlocking abutting portion 322, preventing the door locking member 33 from rotating and resetting.

[0202] After the personnel in the car and on the floor have completed entering and exiting, under the drive of the synchronous drive motor 411, each door connecting member 10 resets to close the door. During the door closing process, the third unlocking abutting portion 362 abuts against the first unlocking abutting portion 322, preventing the door locking member 33 from rotating and resetting in advance.

[0203] After each door connecting member 10 closes in place, the contact pin 621 is inserted into the corresponding contact socket 611, the second unlocking abutting portion 361 abuts against the target unlocking portion 3611, and the locking and unlocking member 36 overcomes the elastic acting force of the second elastic member 37 and rotates relative to the door locking seat 31, so that the third unlocking abutting portion 362 is separated from the first unlocking abutting portion 322.

[0204] At this time, with the movement of the locking transmission member 32, the door knife driver 20 switches to the open state, and the door locking member 33 switches to the locking state. After that, the car can perform corresponding lifting and moving.

[0205] It should be noted that the term "including" and its variants used in the embodiments of the present invention are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The modifications of "one" and "multiple" mentioned in the embodiments of the present invention are illustrative rather than restrictive, and those skilled in the art should understand that unless clearly stated otherwise in the context, it should be understood as "one or more".

[0206] In the method implementation manners provided by the embodiments of the present invention, the steps recorded can be executed in different orders and / or executed in parallel. In addition, the method implementation manners may include additional steps and / or omit the steps shown. The protection scope of the present invention is not limited in this regard.

[0207] As used herein, the term "embodiment" means that the specific features, structures, or characteristics described in connection with an embodiment may be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily mean the same embodiment, nor does it mean being independent or alternative to other embodiments and mutually exclusive. The various embodiments in the specification are described in a related manner, and the same or similar parts among the embodiments are cross-referred to. In particular, for device, equipment, and system embodiments, since they are basically similar to method embodiments, they are described relatively simply, and the relevant parts refer to the partial description of the method embodiments.

[0208] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation of the protection scope. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. An elevator door assembly, characterized in that, Comprising: A door connecting member, on which a door knife driver is provided; A door locking device, along a first direction, the door locking device is arranged on one side of the door connecting member, and the first direction is parallel to the height direction of the target hoistway; the door locking device includes a door locking base, a locking transmission member and a door locking member; the door locking base is connected to the door connecting member, the locking transmission member is movably connected to the door locking base, and the locking transmission member is in transmission connection with the door knife arm of the door knife driver; the door locking member is rotatably connected to the door locking base, the door locking member is in transmission connection with the locking transmission member, and a first locking hook portion is arranged on the door locking member, and the first locking hook portion is used for cooperating with a target locking portion; Wherein, the locking transmission member moves to lock or unlock the first locking hook portion and the target locking portion.

2. The elevator door assembly according to claim 1, characterized in that: A first transmission portion is arranged on the locking transmission member, and a second transmission portion is arranged on the door knife arm, the second transmission portion can move along the first direction relative to the first transmission portion, and the second transmission portion can rotate relative to the first transmission portion; A first hook lifting abutting portion is further arranged on the door locking member; The door locking device further includes a locking hook lifting member, and the locking hook lifting member is rotatably connected to the locking transmission member; a third transmission portion and a second hook lifting abutting portion are arranged on the locking hook lifting member; the second transmission portion can move along the first direction relative to the third transmission portion, and the second transmission portion can rotate relative to the third transmission portion; Wherein, the movement of the locking transmission member drives the locking hook lifting member to rotate, and the first hook lifting abutting portion abuts against the second hook lifting abutting portion to make the door locking member rotate, so that the first locking hook portion locks or unlocks with the target locking portion.

3. The elevator door assembly according to claim 1, characterized in that: The door locking device further includes a first elastic member, and the first elastic member is respectively connected to the door locking base and the locking transmission member, and the first elastic member is used for driving the locking transmission member to move relative to the door locking base, so that the door locking device switches from a locked state to an unlocked state; Wherein, when the door locking device is in the locked state, the first locking hook portion locks with the target locking portion; when the door locking device is in the unlocked state, the first locking hook portion unlocks with the target locking portion.

4. The elevator door assembly according to claim 1, characterized in that: A first unlocking abutting portion is arranged on the locking transmission member; The door locking device further includes: A locking and unlocking member, rotatably connected to the door locking seat; a second unlocking abutting portion and a third unlocking abutting portion are provided on the locking and unlocking member, and the second unlocking abutting portion is used to cooperate with a target unlocking portion; wherein, the working state of the locking and unlocking member includes a limiting state and an avoiding state; when the locking and unlocking member is in the limiting state, the second unlocking abutting portion is separated from the target unlocking portion, and the third unlocking abutting portion abuts against the first unlocking abutting portion; when the locking and unlocking member is in the avoiding state, the second unlocking abutting portion abuts against the target unlocking portion, and the third unlocking abutting portion is separated from the first unlocking abutting portion; and, A second elastic member, respectively connecting 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 avoiding state to the limiting state.

5. The elevator door assembly according to claim 1, wherein: Along the second direction, limiting adjustment screw holes are provided at both ends of the door locking seat, a limiting adjustment bolt is arranged in the limiting adjustment screw hole, the limiting adjustment bolt is threadedly connected with the limiting adjustment screw hole, and the limiting adjustment bolt is used to prevent the locking transmission member from moving relative to the door locking seat when contacting the locking transmission member; the second direction is parallel to the moving direction of the locking transmission member.

6. The elevator door assembly according to claim 1, wherein: 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 extending direction of each adjustment strip hole is parallel to the second direction; an adjustment connecting member is arranged 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 member, the door locking adjustment member is connected to the adjustment connecting member, and a second locking hook portion is provided on the door locking adjustment member, and the second locking hook portion is used to cooperate with the target locking portion.

7. The elevator door assembly according to any one of claims 1 to 6, characterized in that, Further included: A carrier; A guiding member, connected to the carrier; when there are a plurality of guiding members, the plurality of guiding members are arranged in sequence along the 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 guiding member and the carrier and is movably connected to the first guiding member, and the first guiding member is the guiding member at the head end of the third direction; a door knife driver is arranged on the first connecting surface of the door connecting member, and the first connecting surface is the surface where the door connecting member connects the first guiding member; Or, Along the third direction, the door connecting member is arranged between two adjacent guiding members and is movably connected to the second guiding member, and the second guiding member is the guiding member among the two guiding members adjacent to the door connecting member that is relatively far from the first guiding member along the third direction; a door knife driver is arranged on the second connecting surface of the door connecting member, and the second connecting surface is the surface where the door connecting member connects the second guiding member.

8. The elevator door assembly according to any one of claims 1 to 6, characterized in that, The door knife driver includes: Two door knife connecting rods, along a first direction, are respectively arranged on both sides of a target guide member, and the target guide member is a guide member connected to the door connecting member; each of the door knife connecting rods is rotatably connected to the door connecting member through a connecting rod bearing, and connecting rod pins are arranged at both ends of each of the door knife connecting rods; There are two door knife arms, along a second direction, the two door knife arms are respectively arranged on both sides of the connecting rod bearing, and each of the door knife arms is rotatably connected to the two connecting rod 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 clamping state; when the door knife actuator 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 actuator is in the clamping 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.

9. The elevator door assembly according to any one of claims 1 to 6, wherein: It further includes a contact seat, along the first direction, the contact seat is arranged on the side of the door lock relative to and away from the door connecting member; the contact seat includes: A first contact seat, connected to a target carrier; two contact seat jacks are arranged on the first contact seat, and along a third direction, the two contact seat jacks are arranged at intervals; A second contact seat, connected to the door connecting member; two contact seat pins corresponding to the two contact seat jacks are arranged on the second contact seat.

10. The elevator door assembly according to any one of claims 1 to 6, wherein: The door connecting member includes: A first connecting body, on which the door knife actuator is arranged, and the door lock seat is connected to the first connecting body; A second connecting body, along the first direction, the second connecting body is arranged on one side of the first connecting body, one end of the second connecting body is connected to one end of the first connecting body, and there is an included angle between the extending direction of the second connecting body and the extending direction of the first connecting body; and, A third connecting body, along the first direction, the third connecting body is arranged on one side of the second connecting body, one end of the third connecting body is connected to the other end of the second connecting body, and the extending direction of the third connecting body is parallel to the extending direction of the first connecting body; a first connecting hole is arranged on the third connecting body; The elevator door assembly further includes: A door body, at one end of the door body along the first direction, there are a receiving portion and a connecting portion, along the third direction, the receiving portion and the connecting portion are arranged in sequence; the third connecting body is arranged in the receiving portion, and a second connecting hole corresponding to the first connecting hole is arranged on the connecting portion; and, A door fastener, connecting the first connecting hole and the second connecting hole respectively.

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