A linkage device for double-opening revolving doors of an elevator

Abstract

This invention relates to the field of elevator technology and discloses a linkage device for a double-opening revolving door of an elevator, comprising: a door frame, a left revolving door, a right revolving door, and a linkage mechanism; a sill is provided at the bottom of the door frame, and a door operator housing is provided at the top inside the door frame. Along a first direction, there is a first gap between the sill and the door operator housing. The left and right revolving doors are rotatably disposed within the first gap around the first direction. The linkage mechanism includes a sheave drive assembly, a left sheave assembly, a right sheave assembly, and a wire rope. The output end of the left sheave assembly is connected to the left revolving door; the output end of the right sheave assembly is connected to the right revolving door. The wire rope is wound around the sheave drive assembly, the left sheave assembly, and the right sheave assembly, with the wire rope on one side of the sheave drive assembly arranged in parallel and the wire rope on the other side of the sheave drive assembly arranged in a cross pattern, so that the left and right sheave assemblies move synchronously under the action of the sheave drive assembly.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to a linkage device for a double-opening revolving door of an elevator. Background Technology

[0002] With the increasing pursuit of space utilization and improved living quality in modern home design, home elevators, especially shaftless and compact platform elevators, are gradually becoming standard equipment in high-end residences. These elevators are popular among users due to their flexible installation methods and space-saving features. In the early days, most of these elevators had manual single-door entrances. However, with technological advancements and people's increasing demands for quality of life, the market has gradually developed electric double-door revolving doors.

[0003] Currently, the door operator systems of traditional electric elevators with double revolving doors on the market basically use two control systems and two door operator motors to drive the two doors respectively. This structure has high material costs and daily maintenance costs, and the synchronization accuracy of the two doors is low and difficult to adjust. Summary of the Invention

[0004] The purpose of this invention is to provide a linkage device for double-opening revolving doors in elevators, so as to solve the problems mentioned in the background art, such as high production and maintenance costs of elevator door operator systems with two control systems and two door operator motors, and difficulty in adjusting the synchronous rotation accuracy of the two revolving doors.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A linkage device for a double-opening revolving door of an elevator, comprising: A door frame, the bottom of which is provided with a sill, and the top of which is provided within the door frame, wherein a first gap exists between the sill and the door operator housing along a first direction. A left-hand revolving door, which is rotatably disposed within a first interval about a first direction and close to the left side of the door frame; A right-hand revolving door, which is rotatably disposed within a first interval about a first direction and close to the right side of the door frame; A linkage mechanism, located within the door operator's housing, includes a rope pulley drive assembly, a left rope pulley assembly, a right rope pulley assembly, and a steel wire rope. The rope pulley drive assembly is situated on the bottom wall of the door operator's housing. The left rope pulley assembly is located to the left of the rope pulley drive assembly, and its output end is connected to the left revolving door to open or close it. The right rope pulley assembly is located to the right of the rope drive assembly, and its output end is connected to the right revolving door to open or close it. The steel wire rope is wound around the rope pulley drive assembly, the left rope pulley assembly, and the right rope pulley assembly. The steel wire rope on one side of the rope pulley drive assembly is arranged parallel to each other, while the steel wire rope on the other side is arranged in a crisscross pattern, so that the left and right rope pulley assemblies move synchronously when the rope pulley drive assembly is activated. Through this arrangement, a single set of rope pulley drive assemblies simultaneously controls the left and right revolving doors to rotate in opposite directions, achieving synchronized door opening and closing.

[0006] Furthermore, the rope pulley drive assembly includes a door operator motor, a first base, a first bearing, and a drive rope pulley. The first base is installed at the bottom of the door operator housing, and a first bearing hole extending along a first direction is formed in the first base. The first bearing is fixed in the first bearing hole. The bottom end of the drive rope pulley is connected to the inner ring of the first bearing, and the top end of the drive rope pulley is connected to the output end of the door operator motor. The drive rope pulley is used to connect a steel wire rope. With the above configuration, a combination of a door operator motor and a steel wire rope can drive the movement of two revolving doors, reducing material costs and daily maintenance costs. Moreover, the accuracy of synchronous opening and closing of the left and right doors can be greatly improved by adjusting the steel wire rope.

[0007] Furthermore, the drive pulley includes a drive disc, a first transmission shaft, and a winding section; the winding section is disposed on the upper surface of the drive disc and is used to wind the steel wire rope; the first transmission shaft is located on the lower surface of the drive disc; the drive disc is connected to the inner ring of a first bearing through the first transmission shaft; and the winding section has a keyway hole for connection with the gantry motor. The drive pulley has a simple structure, utilizing the gantry motor to drive the drive disc to rotate, thereby pulling the steel wire rope.

[0008] Furthermore, the rope winding section includes a central column and guide columns; both the central column and guide columns have rope grooves on their outer peripheral surfaces; the central column is located at the center of the upper surface of the drive disc, and its top surface has a keyway hole for connection with the door motor; there are two guide columns, positioned close to the outer peripheral surface of the drive disc, with a second gap between them, allowing the wire rope to pass around the central column and extend towards the left and right rope pulley assemblies respectively after passing through the second gap. Through this arrangement, the output shaft of the door motor is connected to the top surface of the central column, and the door motor also prevents the wire rope from falling off. After the wire rope passes around the central column, its two ends extend to the left and right sides respectively under the guidance of the two guide columns, winding around the left and right rope pulley assemblies respectively, driving the left and right revolving doors to move simultaneously via a single door motor.

[0009] Furthermore, it also includes a wire rope fixing bracket. The drive disc has a limiting hole extending along a first direction, and the limiting hole is positioned opposite to the center point of a second interval. The wire rope fixing bracket is connected to the limiting hole via a pin, thereby connecting the wire rope fixing bracket to the drive disc. When the drive disc rotates, the wire rope fixing bracket also swings accordingly. The two ends of the wire rope are adjustablely mounted on both sides of the wire rope fixing bracket. With the above arrangement, the two ends of the wire rope are respectively wound around the left and right sheave assemblies before being connected to the wire rope fixing bracket. Arranging the wire rope fixing bracket facilitates fixing the two open ends of the wire rope and also makes it convenient to adjust the tension of the wire rope.

[0010] Furthermore, one open end of the wire rope is a threaded joint, and the other open end is a fixed joint. The two ends of the wire rope are respectively installed on both sides of the wire rope fixing bracket. The tension of the wire rope can be adjusted through the end with the threaded joint.

[0011] Furthermore, the left rope pulley assembly includes a second base, a second bearing, a left rope pulley, and a first wire rope pressure plate. The second base is installed on the bottom wall of the door operator housing and located to the left of the first base. The second base has a second bearing hole that extends along a first direction. The second bearing is fixed inside the second bearing hole. The left rope pulley is connected to the inner ring of the second bearing and passes through the door operator housing to connect with the left revolving door. The wire rope is wound around the left rope pulley, and the first wire rope pressure plate is fastened to the left rope pulley. The left rope pulley assembly has a simple structure. The left rope pulley rotates under the pull of the wire rope, thereby driving the left revolving door to open and close.

[0012] Furthermore, the left pulley includes a left wheel and a second drive shaft; the second drive shaft is connected to the bottom end face of the left wheel, passes through the inner ring of the second bearing, and connects to the left revolving door. A rope groove is formed on the outer circumferential surface of the left wheel, and the first wire rope pressure plate is fastened to the outer circumference of the left wheel. By setting the first wire rope pressure plate, the wire rope can be prevented from falling off along the rope groove of the left wheel.

[0013] Furthermore, the right sheave assembly includes a third base, a third bearing, a right sheave, and a second wire rope pressure plate. The third base is installed at the bottom of the gantry housing and is located to the right of the first base. The third base has a third bearing hole that extends along a first direction. The third bearing is fixed in the third bearing hole. The right sheave is connected to the inner ring of the third bearing. The wire rope is wound around the right sheave. The second wire rope pressure plate is fastened to the right sheave. The structure and arrangement of the right sheave assembly are the same as those of the left sheave assembly.

[0014] Furthermore, the right pulley includes a right wheel and a third drive shaft; the third drive shaft is connected to the bottom end face of the right wheel, and the third drive shaft passes through the inner ring of the third bearing and is connected to the right revolving door; a rope groove is opened on the outer circumferential surface of the right wheel, and the second wire rope pressure plate is fastened to the outer circumference of the right wheel.

[0015] Furthermore, the door frame also includes a top crossbeam, a left column, and a right column; the top ends of the left and right columns are respectively connected to the left and right ends of the top crossbeam, the sill is positioned opposite the top crossbeam and connected to the bottom ends of the left and right columns, and the door operator housing is located on the lower side of the top crossbeam. The door frame structure is simple, providing installation space and support for the door operator housing and the left and right revolving doors.

[0016] Furthermore, it also includes a door operator controller, which is located inside the door operator housing and is connected to the door operator motor via signal transmission. By controlling one door operator motor with one door operator controller, the synchronous opening and closing of the left and right revolving doors can be achieved.

[0017] Furthermore, the left-hand revolving door includes a door leaf and a pivot. The door leaf is connected to one side of the pivot, which is located near the left column of the door frame. The bottom end of the pivot is rotatably mounted on the sill, and the top end is connected to a second drive shaft. Thus, the door leaf can rotate along the pivot under the drive of the left pulley assembly, thereby opening and closing the elevator revolving door. The right-hand revolving door is configured the same as the left-hand revolving door.

[0018] The present invention has the following advantages over the prior art: 1. This invention discloses a linkage device for a double-opening revolving door of an elevator, comprising a door frame, a left revolving door, a right revolving door, and a linkage mechanism; wherein, a sill is provided at the bottom of the door frame, and a door operator housing is provided at the top inside the door frame, forming a first gap between the sill and the door operator housing, and the left and right revolving doors are rotatably installed within the first gap; the linkage mechanism includes a rope wheel drive assembly, a left rope wheel assembly, a right rope wheel assembly, and a steel wire rope; the left rope wheel assembly is located to the left of the rope wheel drive assembly, and the right rope wheel assembly is located to the right of the rope wheel drive assembly; the steel wire rope is wound around the rope wheel drive assembly, the left rope wheel assembly, and the right rope wheel assembly, with the steel wire rope on one side of the rope wheel drive assembly arranged in parallel and the steel wire rope on the other side arranged in a crisscross pattern; the left rope wheel assembly is used to drive the left revolving door, and the right rope wheel assembly is used to drive the right revolving door; the action of the rope wheel drive assembly drives the left and right revolving doors to move synchronously. This application utilizes a method where steel wire ropes are arranged parallel to one side of the pulley drive assembly and crossed on the other side. This allows a single pulley drive assembly to simultaneously control the left and right revolving doors to rotate in opposite directions, achieving synchronized opening and closing. Compared to similar products on the market, this design reduces one drive system, lowering material and daily maintenance costs. Furthermore, the use of steel wire ropes for linkage and the reduction in the number of drive systems lowers the space requirements for the door operator components. Adjusting the steel wire ropes can also significantly improve the accuracy of the synchronized opening and closing of the left and right doors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the linkage device for the double-opening revolving door of an elevator in an embodiment of the present invention; Figure 2 This is a schematic diagram of the linkage mechanism in the linkage device of the elevator double-opening revolving door in an embodiment of the present invention. Figure 3 This is a schematic diagram of the rope wheel drive assembly in the linkage device of the elevator double-opening revolving door in an embodiment of the present invention. Figure 4 This is an exploded view of the rope wheel drive assembly in the linkage device of the elevator double-opening revolving door in an embodiment of the present invention. Figure 5 This is an exploded view of the left rope pulley assembly in the linkage device of the elevator double-opening revolving door in an embodiment of the present invention. Figure 6 This is a top view of the linkage device of the elevator double-opening revolving door in the embodiment of the present invention when the door is closed. Figure 7 This is a top view of the linkage device of the elevator double revolving door in the embodiment of the present invention during the opening and closing process; Figure 8 This is a top view of the linkage device of the elevator double revolving door in the embodiment of the present invention when the door is in the open state; In the diagram: 1. Door frame; 101. Top beam; 102. Left column; 103. Right column; 2. Sill; 3. Door operator housing; 4. Left revolving door; 5. Right revolving door; 6. Rope pulley drive assembly; 601. Door operator motor; 602. First base; 6021. First bearing hole; 603. First bearing; 604. Drive rope pulley; 605. Drive disc; 606. First transmission shaft; 607. Center column; 608. Guide column; 609. Limiting hole; 610. Wire rope fixing bracket; 7. Left rope pulley assembly; 701. Second base; 7011. Second bearing hole; 702. Second bearing; 703. Left rope pulley; 704. First wire rope pressure plate; 7041. Protrusion; 705. Left wheel disc; 706. Second drive shaft; 8. Right rope pulley assembly; 9. Wire rope; 10. Door machine controller; 11. Threaded joint; 12. Fixed joint; X, First direction. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that in the description of this invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be further discussed and described in the description of the subsequent figures.

[0024] Example: refer to Figure 1 and Figure 2 This embodiment provides a linkage device for a double-opening revolving door of an elevator, including: a door frame 1, a left revolving door 4, a right revolving door 5, and a linkage mechanism; a sill 2 is provided at the bottom of the door frame 1, and a door operator housing is provided at the top inside the door frame 1, along a first direction ( Figure 1 The first direction is the X-direction (which is vertical in actual installation). A first gap exists between the sill 2 and the door machine housing 3, providing installation space for the left and right revolving doors. The left revolving door 4 is rotatably positioned within the first gap around the first direction and is located near the left side of the door frame 1. The right revolving door 5 is rotatably positioned within the first gap around the first direction and is located near the right side of the door frame 1. The linkage mechanism is located inside the door machine housing 3 and includes a rope pulley drive assembly 6, a left rope pulley assembly 7, a right rope pulley assembly 8, and a wire rope 9. The rope pulley drive assembly 6 is located on the bottom wall of the door machine housing 3. The left rope pulley assembly... Component 7 is located on the left side of the rope drive assembly 6. The output end of the left rope drive assembly 7 is connected to the left revolving door 4 to drive the left revolving door 4 to open or close. The right rope drive assembly 8 is located on the right side of the rope drive assembly 6. The output end of the right rope drive assembly 8 is connected to the right revolving door 5 to drive the right revolving door 5 to open or close. The steel wire rope 9 is wound around the rope drive assembly 6, the left rope drive assembly 7, and the right rope drive assembly 8. The steel wire rope 9 on one side of the rope drive assembly 6 is arranged in parallel, and the steel wire rope 9 on the other side of the rope drive assembly 6 is arranged in a cross pattern, so that the left rope drive assembly 7 and the right rope drive assembly 8 can move synchronously under the action of the rope drive assembly 6. In this application, by arranging the steel wire rope in parallel on one side of the rope drive assembly and crossing it on the other side, a set of rope drive assemblies can simultaneously control the left and right revolving doors to rotate in opposite directions to achieve the effect of synchronous opening and closing of the doors.

[0025] In existing technologies, there is a method that uses a single control system and a single door operator motor to drive the two doors through a linkage structure. This type of door operator system occupies a large space and is prone to locking up when rotating at large angles. In contrast, this application utilizes a steel wire rope to reduce the number of linkage and drive systems, thereby lowering the space requirements for door operator components. Furthermore, the steel wire rope transmission provides timely response and facilitates maintenance.

[0026] Specifically, in this embodiment, the door frame 1 further includes a top crossbeam 101, a left column 102, and a right column 103; the top ends of the left column 102 and the right column 103 are respectively connected to the left and right ends of the top crossbeam 101, the sill 2 is arranged opposite to the top crossbeam 101 and connected to the bottom ends of the left column 102 and the right column 103, and the door operator housing 3 is located on the lower side of the top crossbeam 101. In this embodiment, the door frame 1 has a simple structure, the door frame 1 is the door operator housing 3, and the left and right revolving doors provide installation space and installation support. The door operator housing 3 is a commonly used component in the art. In this embodiment, the door operator housing is U-shaped, as shown in the reference. Figure 1The opening of the door operator housing faces outward to facilitate the installation of the linkage mechanism inside the door operator housing. In this embodiment, the left revolving door 4 includes a door leaf and a rotating shaft; the axis of the rotating shaft extends along a first direction, the door leaf is connected to one side of the rotating shaft, the rotating shaft is installed near the left column 102 of the door frame 1, the bottom end of the rotating shaft is rotatably installed on the sill 2, and the top end of the rotating shaft is connected to the second transmission shaft 706, so that the door leaf can rotate along the rotating shaft under the drive of the left rope pulley assembly, realizing the opening and closing of the elevator revolving door. The right revolving door is set up in the same way as the left revolving door.

[0027] refer to Figure 3 and Figure 4 The rope pulley drive assembly 6 includes a door operator motor 601, a first base 602, a first bearing 603, and a drive rope pulley 604. The first base 602 is installed at the bottom inside the door operator housing 3. The first base 602 has a first bearing hole 6021 extending along a first direction. The first bearing 603 is fixed inside the first bearing hole 6021 (i.e., the outer ring of the first bearing 603 is fixed to the first bearing hole 6021). The bottom end of the drive rope pulley 604 is connected to the inner ring of the first bearing 603, and the top end of the drive rope pulley 604 is connected to the output end of the door operator motor 601. The drive rope pulley 604 is used to connect the wire rope 9. The output shaft of the door operator motor 601 is arranged along the first direction. The output shaft of the door operator motor 601 is connected to the drive rope pulley 604, and the drive rope pulley 604 is connected to the first bearing 603, so that the drive rope pulley 604 is rotatable. The combination of a door motor 601 and a steel wire rope 9 can drive the movement of two revolving doors, reducing material costs and daily maintenance costs; and by adjusting the steel wire rope, the accuracy of the synchronous opening and closing of the left and right doors can be greatly improved.

[0028] Specifically, the drive pulley 604 includes a drive disc 605, a first transmission shaft 606, and a winding section. The winding section is located on the upper surface of the drive disc 605 and is used to wind the steel wire rope 9. The first transmission shaft 606 is located on the lower surface of the drive disc 605. The drive disc 605 is connected to the inner ring of the first bearing 603 through the first transmission shaft 606. The winding section has a keyway hole for connection with the gantry motor 601. The drive pulley 604 has a simple structure, using the gantry motor 601 to drive the drive disc 605 to rotate, thereby applying tension to the steel wire rope 9.

[0029] The rope winding section includes a central post 607 and guide posts 608. Both the central post 607 and guide posts 608 have rope grooves on their outer circumferential surfaces to prevent the wire rope 9 from falling off. The central post 607 is located at the center of the upper surface of the drive disc 605, and its top surface has a keyway hole for connection with the gantry motor 601. There are two guide posts 608, positioned close to the outer circumferential surface of the drive disc, with a second gap between them to allow the wire rope 9 to pass around the central post and extend towards the left and right sheave assemblies, respectively, after passing through the second gap. Through this arrangement, the output shaft of the gantry motor is connected to the top surface of the central post, enabling the drive disc 605 to rotate and preventing the wire rope from falling off. After the wire rope 9 passes around the central column 607, the two ends of the wire rope extend to the left and right sides respectively under the guidance of the two guide columns 608, and are respectively wrapped around the left rope wheel assembly and the right rope wheel assembly. The left and right revolving doors are driven to move simultaneously by a door motor.

[0030] In this embodiment, the sheave drive assembly further includes a wire rope fixing bracket 610. The drive disk 605 has a limiting hole 609 extending along a first direction. The limiting hole 609 is positioned opposite to the center point of a second interval (i.e., distributed along the same diameter of the drive disk 605). The wire rope fixing bracket 610 is connected to the limiting hole 609 via a pin, thereby connecting the wire rope fixing bracket 610 to the drive disk 605. When the drive disk 605 rotates, the wire rope fixing bracket 610 also swings accordingly. The two ends of the wire rope 9 are adjustablely mounted on both sides of the wire rope fixing bracket 610. With the above arrangement, the two ends of the wire rope are respectively wound around the left sheave assembly and the right sheave assembly before being connected to the wire rope fixing bracket. Arranging the wire rope fixing bracket facilitates fixing the two open ends of the wire rope, and also allows for convenient adjustment of the wire rope tension.

[0031] Specifically, one open end of the wire rope 9 is a threaded connector 11, and the other open end is a fixed connector 12. The two ends of the wire rope 9 are respectively installed on both sides of the wire rope fixing bracket 610. The tension of the wire rope 9 can be adjusted by the end with the threaded connector 11.

[0032] refer to Figure 5The left rope pulley assembly 7 includes a second base 701, a second bearing 702, a left rope pulley 703, and a first wire rope pressure plate 704. The second base 701 is installed on the bottom wall of the door operator housing 3 and is located to the left of the first base 602. The second base 701 has a second bearing hole 7011 that extends along a first direction. The second bearing 702 is fixed in the second bearing hole 7011. The left rope pulley 703 is connected to the inner ring of the second bearing 702 and passes through the door operator housing 3 to connect with the left revolving door 4. The wire rope 9 is wound around the left rope pulley 703, and the first wire rope pressure plate 704 is fastened to the left rope pulley 703. The left rope pulley assembly 7 has a simple structure. The left rope pulley 703 rotates under the pull of the wire rope 9, thereby driving the left revolving door 4 to open and close.

[0033] Specifically, the left pulley 703 includes a left wheel disc 705 and a second drive shaft 706; the second drive shaft 706 is connected to the bottom end face of the left wheel disc 705, and passes through the inner ring of the second bearing 702 and the door machine housing 3 before connecting to the rotating shaft of the left revolving door. A rope groove is formed on the outer circumferential surface of the left wheel disc, and the first wire rope pressure plate 704 is fastened to the outer circumference of the left wheel disc 705. (Reference) Figure 5 The first wire rope pressure plate 704 has a downwardly extending protrusion 7041 for preventing the wire rope from falling off along the rope groove of the left wheel.

[0034] In this embodiment, the right rope pulley assembly 8 includes a third base, a third bearing, a right rope pulley, and a second wire rope pressure plate. The third base is installed at the bottom of the gantry housing and is located to the right of the first base. The third base has a third bearing hole that extends along a first direction. The third bearing is fixed in the third bearing hole. The right rope pulley is connected to the inner ring of the third bearing. The wire rope is wound around the right rope pulley, and the second wire rope pressure plate is fastened to the right rope pulley. The right rope pulley includes a right wheel disc and a third drive shaft. The third drive shaft is connected to the bottom end face of the right wheel disc. The third drive shaft passes through the inner ring of the third bearing and is connected to the right revolving door. A rope groove is formed on the outer circumferential surface of the right wheel disc, and the second wire rope pressure plate is fastened to the outer circumference of the right wheel disc. The structure and arrangement of the right rope pulley assembly are the same as those of the left rope pulley assembly. In specific implementation, the first base 602, the second base 701, and the third base are located on the same horizontal plane, and the height at which the wire rope is wound on the central column 607, the left wheel disc 705, and the right wheel disc is the same.

[0035] This embodiment also includes a door operator controller 10, which is disposed within the door operator housing 3 and is signal-connected to the door operator motor 601. Synchronous opening and closing of the left and right revolving doors can be achieved by controlling one door operator motor with one door operator controller. Compared with similar products on the market, this design reduces the use of one door operator motor and one door operator controller. Utilizing a steel wire rope for linkage and reducing the number of door operator motors and controllers lowers the space requirements of the door operator system.

[0036] refer to Figures 6-8 The opening and closing process of the elevator door operator system in this embodiment is as follows: In this embodiment, the wire ropes on the left side of the sheave assembly are arranged in parallel, while the wire ropes on the right side of the sheave assembly are arranged in a crisscross pattern. In the closed state ( Figure 6 The door operator controller 10 outputs a command to control the door operator motor 601 to rotate counterclockwise. At this time, the door operator motor shaft drives the drive rope wheel 604 to rotate counterclockwise as well. When the drive rope wheel 604 rotates counterclockwise, it drives the wire rope 9 to generate a leftward tension (upper wire rope) and a rightward tension (lower wire rope). Under the action of the tension in the wire rope 9, the left rope wheel assembly 7 rotates counterclockwise, and the right rope wheel assembly 8 rotates clockwise. Correspondingly, the left revolving door 4 opens counterclockwise along the axis, and the right revolving door 5 opens clockwise synchronously along the axis, until the doors are fully open and the opening action is completed. The closing process is the reverse of the opening process.

[0037] The linkage device for the elevator double-opening revolving door in this embodiment is based on the following principle: 1. In the linkage mechanism, the wire rope is arranged in parallel on one side of the rope pulley drive assembly and in a crisscross arrangement on the other side. The wire rope is wound around the left rope pulley assembly, the right rope pulley assembly, and the drive rope pulley assembly; 2. When the door is closed, the door motor rotates counterclockwise, which drives the drive rope wheel to rotate counterclockwise through the door motor shaft. Under the tension of the wire rope, the left rope wheel assembly rotates counterclockwise and the right rope wheel assembly rotates clockwise. Correspondingly, the left revolving door opens counterclockwise along the rotation axis, and the right revolving door opens clockwise along the rotation axis until the door is fully opened and the opening action is completed. 3. When the door is open, the door motor rotates clockwise, which drives the drive rope wheel to rotate clockwise through the door motor shaft. Under the tension of the wire rope, the left rope wheel assembly rotates clockwise and the right rope wheel assembly rotates counterclockwise. Correspondingly, the left revolving door moves clockwise along the rotation axis to close, and the right revolving door moves counterclockwise along the rotation axis to close synchronously until the door is fully closed and the closing action is completed. This invention employs a design with one control system and one door motor, driving two doors through a wire rope linkage device. This perfectly solves the problems of high production and maintenance costs and difficulty in adjusting the synchronous rotation accuracy of the two revolving doors in existing elevator door operator systems with two control systems and two door motors.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linkage device for a double-opening revolving door of an elevator, characterized in that, include: A door frame, the bottom of which is provided with a sill, and the top of which is provided within the door frame, wherein a first gap exists between the sill and the door operator housing along a first direction. A left-hand revolving door, which is rotatably disposed within a first interval about a first direction and close to the left side of the door frame; A right-hand revolving door, which is rotatably disposed within a first interval about a first direction and close to the right side of the door frame; A linkage mechanism is provided, located within the door operator housing. The linkage mechanism includes a rope pulley drive assembly, a left rope pulley assembly, a right rope pulley assembly, and a steel wire rope. The rope pulley drive assembly is located on the bottom wall of the door operator housing. The left rope pulley assembly is located to the left of the rope pulley drive assembly, and its output end is connected to a left revolving door to open or close it. The right rope pulley assembly is located to the right of the rope drive assembly, and its output end is connected to a right revolving door to open or close it. The steel wire rope is wound around the rope pulley drive assembly, the left rope pulley assembly, and the right rope pulley assembly. The steel wire rope on one side of the rope pulley drive assembly is arranged parallel to each other, while the steel wire rope on the other side is arranged in a crisscross pattern, so that the left and right rope pulley assemblies move synchronously when the rope pulley drive assembly is activated.

2. The linkage device for the double-opening revolving door of an elevator according to claim 1, characterized in that: The rope wheel drive assembly includes a gantry motor, a first base, a first bearing, and a drive rope wheel; the first base is installed at the bottom inside the gantry housing, the first base has a first bearing hole that extends along a first direction, the first bearing is fixed in the first bearing hole, the bottom end of the drive rope wheel is connected to the inner ring of the first bearing, the top end of the drive rope wheel is connected to the output end of the gantry motor, and the drive rope wheel is used to connect a steel wire rope.

3. The linkage device for the double-opening revolving door of an elevator according to claim 2, characterized in that: The drive pulley includes a drive disc, a first transmission shaft, and a rope winding part; the rope winding part is disposed on the upper surface of the drive disc and is used to wind a steel wire rope; the first transmission shaft is located on the lower surface of the drive disc; the drive disc is connected to the inner ring of the first bearing through the first transmission shaft; and the rope winding part has a keyway hole for connection with the gantry motor.

4. The linkage device for the double-opening revolving door of an elevator according to claim 3, characterized in that: The rope winding section includes a central column and guide columns; both the central column and guide columns have rope grooves on their outer peripheral surfaces; the central column is located at the center of the upper surface of the drive disk, and the top surface of the central column has a keyway hole for connecting with the gantry motor; there are two guide columns, which are arranged close to the outer peripheral surface of the drive disk, and there is a second gap between the two guide columns so that the wire rope passes around the central column and extends to the left rope sheave assembly and the right rope sheave assembly respectively after passing through the second gap.

5. The linkage device for a double-opening revolving door of an elevator according to claim 4, characterized in that: It also includes a wire rope fixing bracket, wherein the drive disc has a limiting hole that extends through in a first direction, the limiting hole is positioned opposite to the center point of a second interval, the wire rope fixing bracket is connected to the limiting hole via a pin, and the two ends of the wire rope are adjustablely mounted on both sides of the wire rope fixing bracket.

6. The linkage device for a double-opening revolving door of an elevator according to claim 2, characterized in that: The left rope pulley assembly includes a second base, a second bearing, a left rope pulley, and a first wire rope pressure plate. The second base is installed on the bottom wall of the gantry housing and is located to the left of the first base. The second base has a second bearing hole that extends in a first direction. The second bearing is fixed in the second bearing hole. The left rope pulley is connected to the inner ring of the second bearing and passes through the gantry housing to connect with the left revolving door. The wire rope is wound around the left rope pulley, and the first wire rope pressure plate is fastened to the left rope pulley.

7. The linkage device for a double-opening revolving door of an elevator according to claim 6, characterized in that: The left pulley includes a left wheel and a second drive shaft; the second drive shaft is connected to the bottom end face of the left wheel, and the second drive shaft passes through the inner ring of the second bearing and the door machine housing and is connected to the left revolving door. The outer circumferential surface of the left wheel is provided with a rope groove, and the first wire rope pressure plate is fastened to the outer circumference of the left wheel.

8. The linkage device for a double-opening revolving door of an elevator according to claim 2, characterized in that: The right rope pulley assembly includes a third base, a third bearing, a right rope pulley, and a second wire rope pressure plate. The third base is installed at the bottom inside the door machine housing and is located to the right of the first base. The third base has a third bearing hole that runs through the first direction. The third bearing is fixed in the third bearing hole. The right rope pulley is connected to the inner ring of the third bearing and passes through the door machine housing to connect with the right revolving door. The wire rope is wound around the right rope pulley, and the second wire rope pressure plate is fastened to the right rope pulley.

9. The linkage device for a double-opening revolving door of an elevator according to claim 1, characterized in that: The door frame also includes a top crossbeam, a left column, and a right column; the top of the left column and the top of the right column are respectively connected to the left and right ends of the top crossbeam, the sill is arranged opposite to the top crossbeam and connected to the bottom ends of the left column and the right column, and the door operator housing is located on the lower side of the top crossbeam.

10. The linkage device for a double-opening revolving door of an elevator according to claim 9, characterized in that: It also includes a door operator controller, which is located inside the door operator housing and is connected to the door operator motor via a signal connection.

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