Compact type center opening door machine structure

Abstract

The utility model discloses a compact type center opening door machine structure. Comprising a door machine bottom plate, a first door hanging plate, a second door hanging plate and a door knife assembly, wherein the first door hanging plate and the second door hanging plate are arranged at the front end of the door machine bottom plate, can horizontally slide along the door machine bottom plate and are used for hanging a car door; the driving mechanism is arranged at the front end of the door machine bottom plate and can drive the first door hanging plate and the second door hanging plate to get close to each other or get away from each other in the horizontal sliding direction; the driving mechanism comprises a synchronous belt assembly arranged in the horizontal direction of the door machine bottom plate, a driving motor used for driving the synchronous belt assembly to operate and a controller connected with the driving motor. According to the door system, the whole structure is assembled on the front side of the door machine bottom plate, so that the product structure is compact, and the overall thickness of the structure is controlled to be 40 mm and is far smaller than 60 mm of a traditional structure; the middle of the bottom plate of the door system does not protrude, the elevator car structure can be designed without a front wall, and the space of an elevator shaft is effectively saved; and the product installation adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a compact center-split door machine structure. Background Art

[0002] Elevators rely on the lifting and lowering of the car to transport goods and people. To increase the safety of the car during operation, a center-split door machine structure is installed outside the car. This locks the car door during operation, preventing it from being opened from the inside by external force, thereby ensuring the safety of the car. However, the current standard center-split door machine system has a large structural size and is relatively thick overall, which requires a high amount of space in the shaft of compact standard elevators and villa elevators. The elevator door machine system has a complex transmission structure, especially the large size of the synchronous door knife structure with the car door lock structure, which results in a limited number of elevator door system installation and application scenarios. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] The technical problem to be solved by the utility model is to provide a compact center-split door machine structure, in which the entire structure is assembled on the front side of the door machine bottom plate, so that the product structure is compact. The door system controls the overall thickness of the structure to 40 mm, which is much smaller than the 60 mm of the traditional structure. Moreover, there is no protrusion behind the middle part of the door system bottom plate, and the elevator car structure can be designed without a front wall, which effectively saves elevator shaft space. The product has stronger installation adaptability.

[0005] (2) Technical solution

[0006] The solution adopted by the present invention to solve the above-mentioned technical problems is a compact center-split door machine structure, including a door machine bottom plate, a first door hanging plate and a second door hanging plate for hanging a car door, which are arranged at the front end of the door machine bottom plate and can slide horizontally along the door machine bottom plate, a door knife assembly connected to the front end of the door hanging plate, and a driving mechanism arranged at the front end of the door machine bottom plate and can drive the first door hanging plate and the second door hanging plate to move closer to or away from each other along the horizontal sliding direction; the driving mechanism includes a synchronous belt assembly arranged in the horizontal direction along the door machine bottom plate, a driving motor for driving the synchronous belt assembly to operate, and a controller connected to the driving motor.

[0007] Specifically, the front end of the door machine base plate is recessed inward to form a receiving groove for accommodating the first door hanging plate, the second door hanging plate, the door knife assembly and the driving mechanism; the door machine base plate is provided with door machine side reinforcement plates at both ends in the horizontal direction, which play a reinforcing role and can limit the sliding operation range of the first door hanging plate and the second door hanging plate; the drive motor adopts a more compact permanent magnet synchronous motor structure with an outer dimension of 126x126x35, strong torque, compact structure, and flexible installation, making the overall structure of the door system more compact; and the controller is directly embedded in the door machine base plate, which is convenient for debugging, eliminates the need for additional control system mounting brackets and protective casings, and the overall structure is more coordinated.

[0008] With this solution, the entire structure is assembled on the front side of the door machine base, making the product compact. The door system controls the overall thickness of the structure to 40mm, which is much smaller than the 60mm of the traditional structure. In addition, there is no protrusion behind the middle of the door system base plate, so the elevator car structure can be designed without a front wall, effectively saving elevator shaft space. The product has stronger installation adaptability.

[0009] In some embodiments, the front end of the door machine base plate is also provided with a transmission wire rope assembly for connecting the first door hanging plate and the second door hanging plate; and the transmission wire rope assembly is relatively arranged below the synchronous belt assembly; the controller is fixed on the front end of the door machine base plate, and the rear end part of the controller is recessed inward to form an avoidance opening for avoiding the transmission wire rope assembly; and the controller is provided with an operation panel and a display screen on its left side.

[0010] Specifically, the wire rope assembly includes pulleys provided at both ends of the door machine bottom plate in the horizontal direction, and a wire rope connected between the two pulleys; the high rope of the wire rope is connected to the second door hanging plate through a connecting piece, and the low rope of the wire rope is connected to the first door hanging plate through a connecting piece, so as to realize the simultaneous and uniform movement of the first door hanging plate and the second door hanging plate toward each other, thereby realizing the opening and closing actions of the elevator door.

[0011] In some embodiments, the top end of the drive motor is fixed to the top end of the door machine bottom plate through a motor plate, so that the drive motor is suspended in front of the transmission wire rope assembly.

[0012] By adopting the above solution, the avoidance opening can avoid the wire rope, and the drive motor is suspended to avoid the wire rope, so that the controller and the drive motor are set close to each other, reducing the size of the entire structure in the height direction, making the structure compact, and reducing costs.

[0013] In some embodiments, the motor plate is locked to the top of the door machine base plate by screws, and an opening for assembling the screw is provided at the top of the door machine base plate, and the size of the opening is equal to the shaft diameter of the screw; and a tensioning plate is fixed to the door machine base plate, and a tensioning shaft is movably connected to the tensioning plate, and the tensioning shaft passes through the tensioning plate and abuts against the motor plate, and can push the tensioning plate to move to adjust the tensioning degree of the synchronous belt assembly; when the synchronous belt becomes loose during use, the tensioning shaft is adjusted to push the tensioning plate to drive the motor plate to move toward a distance, and the synchronous belt is re-tensioned to ensure normal operation.

[0014] In some embodiments, a reinforcement plate is fixed to the front end of the door machine base plate, and the reinforcement plate is relatively arranged in front of the place where the first door hanging plate and the second door hanging plate abut each other; wherein, a guide rail is provided along the horizontal direction of the front end of the door machine base plate, and the first door hanging plate and the second door hanging plate are both slidably connected to the guide rail through upper hanging wheels and lower hanging wheels to realize the reciprocating sliding movement of the first door hanging plate and the second door hanging plate relative to the door machine base plate in the horizontal direction; and, the top end of the reinforcement plate is locked to the top end of the door machine base plate, so that the reinforcement plate is suspended in front of the synchronous belt assembly and the transmission wire rope assembly; the bottom end of the reinforcement plate is locked on the guide rail.

[0015] In some embodiments, the tensioning plate is fixed to the top of the reinforcement plate and is arranged close to the drive motor; a first limit switch is provided at both left and right ends of the bottom end of the reinforcement plate, and correspondingly, a door hanging plate plug assembly is provided at one end of the first door hanging plate and the second door hanging plate close to the reinforcement plate; and when the first door hanging plate and the second door hanging plate are close to each other until the door hanging plate plug assembly is inserted into the first limit switch, the car door is in a closed state.

[0016] In some embodiments, the door knife assembly includes a door knife base plate, a moving member, an active member, and a driven member, wherein the driven member is located at both left and right ends thereof and is rotatably connected to the door knife;

[0017] The cam is fixed to the front end of the first door hanging plate, and the active member and the driven member are coaxially rotated on the door knife base plate, and the movable member is connected with the active member and can drive the active member to rotate, and the active member and the driven member are connected with a first elastic member to realize the synchronous rotation of the active member and the driven member; and the driven member can also rotate relative to the active member, and a limiting member is provided between the driven member and the active member, and the limiting member is used to limit the rotation range of the driven member relative to the active member; a release link is rotatably connected to the active member, and the follower is provided with a first waist-shaped hole, and the active member is provided with a through hole, and the release link is rotatably connected to the first roller, and the first roller passes through the through hole and extends into the first waist The locking member is engaged with the locking lever and is engaged with the locking member when the locking lever is engaged, and the locking member is engaged with the locking member when the locking lever is engaged.

[0018] Specifically, the door machine assembly adopts a synchronous door knife with a car door lock function, which meets the latest national standard requirements, and the installation thickness of the door knife is only 34.5mm, which more effectively controls the overall thickness of the door system; the operation effect of using a synchronous door knife is more comfortable.

[0019] In some embodiments, the limiting member includes a second waist-shaped hole provided on the active member, and a third roller provided on the driven member and connected to the driven member, the third roller portion is adapted in the second waist-shaped hole, and the rotation range of the third roller in the second waist-shaped hole is the rotation range of the driven member relative to the active member; and the driven member is located at its lower half and is rotatably connected to the active member through the door knife main shaft to realize the rotation of the driven member relative to the active member; and the driven member is rotatably connected between the upper halves of the two door knives, and another connecting rod is rotatably connected between the lower halves of the two door knives, and the connecting rod is rotatably arranged relative to the door knife bottom plate to make the size adjustment of the door knife more stable.

[0020] In some embodiments, the top end of the movable lock hook is connected to a lock hook plug assembly, and a second limit switch is provided at the top end of the reinforcement plate near one end of the door knife assembly. When the movable lock hook is locked on the locking member, the lock hook plug assembly is inserted into the second limit switch, and the car door is in a closed position.

[0021] In some embodiments, the synchronous belt assembly includes a driving wheel connected to the output end of the drive motor, a driven wheel fixed on the door machine bottom plate, and a synchronous belt connected to the driving wheel and the driven wheel; the moving part is fixedly connected to the lower belt of the synchronous belt.

[0022] Specifically, when the controller issues an operation instruction and drives the drive motor to rotate, thereby driving the driving wheel on the output end of the drive motor to rotate, thereby driving the synchronous belt to move, the moving part on the synchronous belt will drive the active part to operate.

[0023] In some embodiments, a sliding groove is provided along the horizontal direction of the door knife base plate, and the moving member passes through the sliding groove and is connected to the active member; an unlocking member is rotatably connected to the door knife base plate, and one end of the unlocking member is close to the reinforcing plate and is rotatably connected to the door knife base plate, and a third elastic member is connected between one end close to the moving member and the door machine base plate, and the third elastic member can give the unlocking member a tendency to always move downward and lock on the moving member; and an unlocking wheel is provided on the reinforcing plate, and the unlocking member includes an unlocking part that is abutted against the unlocking wheel; when the synchronous belt moves, the door knife assembly is driven to the unlocking part of the unlocking member and abuts against the unlocking wheel, so that the unlocking member rotates relative to the door knife base plate and the unlocking member is unlocked from the moving member, and the moving member can drive the active member to rotate under the drive of the synchronous belt.

[0024] Specifically, the first elastic member, the second elastic member and the third elastic member are all tension springs, which have a long service life and are easy to install.

[0025] With the above solution, the reinforcement plate integrates the limit switch, movable lock hook and unlocking wheel of the door knife, and integrates multiple functions of the synchronous belt tensioning mechanism. It can also enhance the overall strength of the door machine bottom plate, simplify the structure and reduce costs.

[0026] Specifically, when the car stops at the leveling area, the door lock roller enters between the two door knives, and the moving part moves to the left under the action of the synchronous belt, and the moving part will drive the active part to rotate to the left along the sliding groove on the door knife bottom plate, and because the two door knives are against the door lock roller, the door lock roller makes the size between the two door knives increase to 46mm, and drives the driven part to rotate right relative to the active part; and the door lock roller restricts the two door knives from approaching each other, so the rotation of the driven part is restricted by the door lock roller. At this time, the driven part stops rotating, and the active part continues to rotate under the drive of the moving part, so a staggered angle is formed between the active part and the driven part; and in the process of continuous rotation of the active part, because the first roller is locked in the first waist-shaped hole, when the active part continues to rotate to the left, the lower end of the release link will tilt, so that the second roller on the release link pushes the active part When the locking mechanism is unlocked, the unlocking portion of the unlocking member disengages from the unlocking wheel, and the top end of the unlocking member is engaged with the moving member under the action of the third elastic member, so that the moving member is restricted and will not move relative to the door knife bottom plate. The continued movement of the synchronous belt will drive the door knife bottom plate and the active member to move synchronously, and then drive the first door hanging plate to move synchronously. Under the action of the wire rope assembly, the second door hanging plate and the first door hanging plate move back to each other at the same speed at the same time. Since the two door knives are tightly engaged on the door knife roller, the elevator door can be opened.

[0027] After receiving the door closing command, the reverse movement of the synchronous belt will drive the first door hanging plate, the door knife bottom plate, and the active part to move synchronously to the right, and under the action of the wire rope assembly, the second door hanging plate and the first door hanging plate will move toward each other at the same speed at the same time, realizing the closing action of the elevator door; until the unlocking part of the unlocking member is against the unlocking wheel, the top of the unlocking member will rotate upward to release the moving member, and the moving member will rotate to the right under the action of the synchronous belt, and drive the active member to rotate to the right. Due to the action of the first elastic member, the driven member is driven to rotate to the right synchronously, and in the process of continuous rotation of the active member, the first roller is locked in the first waist-shaped hole, so that when the active member continues to rotate to the right, the unlocking part of the release link will move downward, so that the second roller on the release link moves downward. When the protrusion of the movable lock hook is disengaged, the movable lock hook will move downward and lock on the locking member under the action of the second elastic member to limit the movement of the door knife assembly; and since the follower rotates to the right, the follower will push the size between the two door knives to make it larger, and when the movable lock hook is locked on the locking member, the size between the two door knives increases to 71mm; at the same time, when the movable lock hook is locked on the locking member, the lock hook plug assembly is inserted into the second limit switch; the door hanging plate plug assemblies on the first door hanging plate and the second door hanging plate are inserted into the first limit switch; at this time, a door closed position signal is issued; and since the size between the two door knives is larger than the size of the door lock roller at this time, the lifting and lowering movement of the center-split door machine structure will not drive the movement of the elevator door;

[0028] When the elevator is in an abnormal state, the active member and the driven member move synchronously under the action of the first elastic member, and the size between the two blades shrinks to 38mm; then, the blades cannot clamp the door knife roller; at the same time, the unlocking part of the release link is in a state of being separated from the protrusion of the movable lock hook, and the movable lock hook is locked on the locking member under the action of the third elastic member, and the center-split door machine structure cannot drive the elevator door to fully open, thereby ensuring the safety of the passengers in the elevator.

[0029] (3) Beneficial effects

[0030] Compared with the existing technology, the utility model designs a compact center-opening door machine structure.

[0031] (1) The utility model assembles the entire structure on the front side of the door machine bottom plate, making the product structure compact. The door system controls the overall thickness of the structure to 40mm, which is much smaller than the 60mm of the traditional structure. In addition, there is no protrusion behind the door system bottom plate, and the elevator car structure can be designed without a front wall, effectively saving elevator shaft space. The product has stronger installation adaptability.

[0032] (2) The door machine bottom plate of the utility model is provided with door machine side reinforcement plates at both ends in the horizontal direction, which play a reinforcing role and can limit the sliding range of the first door hanging plate and the second door hanging plate;

[0033] (3) The drive motor of the utility model adopts a more compact permanent magnet synchronous motor structure with an overall size of 126x126x35, which has strong torque, compact structure and flexible installation, making the overall structure of the door system more compact;

[0034] (4) The controller of the present invention is directly embedded in the door machine base plate, which is convenient for debugging, eliminates the need for additional control system mounting brackets and protective housings, and makes the overall structure more coordinated; the controller's operating panel and display screen are set on the left side, close to the middle of the door system, which is convenient for parameter adjustment.

[0035] (5) The upper rope of the steel wire rope of the utility model is connected to the second door hanging plate through a connector, and the lower rope of the steel wire rope is connected to the first door hanging plate through a connector, so that the first door hanging plate and the second door hanging plate can move toward each other at the same speed at the same time, thereby realizing the opening and closing of the elevator door;

[0036] (6) The avoidance opening on the controller of the utility model can avoid the wire rope, and the drive motor is suspended to avoid the wire rope, so that the controller and the drive motor are arranged close to each other, reducing the size of the entire structure in the height direction, making the structure compact and reducing costs;

[0037] (7) The utility model has a tensioning plate fixed on the bottom plate of the door machine, and a tensioning shaft is movably connected to the tensioning plate. The tensioning shaft passes through the tensioning plate and abuts against the motor plate, and can push the tensioning plate to move so as to adjust the tension of the synchronous belt assembly. When the synchronous belt becomes loose during use, the tensioning shaft is adjusted to push the tensioning plate so as to drive the motor plate to move toward a distance, and the synchronous belt is re-tensioned to ensure normal operation.

[0038] (8) The reinforcing plate of the utility model integrates the limit switch, the movable lock hook and the unlocking wheel of the door knife, and integrates multiple functions of the synchronous belt tensioning mechanism, and can enhance the overall strength of the door machine bottom plate, simplify the structure and reduce costs;

[0039] (9) The door machine assembly of the present invention adopts a synchronous door knife with a car door lock function, which meets the requirements of the latest national standards, and the installation thickness of the door knife is only 34.5mm, which more effectively controls the overall thickness of the door system; the operation effect of using a synchronous door knife is more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1This is a schematic diagram of a compact center-opening door machine structure of the present invention;

[0042] Figure 2 for Figure 1 A in the middle is an enlarged schematic diagram;

[0043] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0044] Figure 4 This is a partial schematic diagram of a compact center-opening door machine structure of the present invention;

[0045] Figure 5 for Figure 4 The enlarged schematic diagram of point C in the middle;

[0046] Figure 6 for Figure 4 The enlarged schematic diagram of point D in the middle;

[0047] Figure 7 This is a structural diagram of the door knife assembly of the present utility model;

[0048] Figure 8 This is a partial structural diagram of the door knife assembly of the present utility model;

[0049] Figure 9 This is a schematic diagram of a door knife assembly of the present invention in which the distance between the door knives is 46 mm;

[0050] Figure 10 This is a schematic diagram of a door knife assembly of the present invention in which the distance between the door knives is 71 mm;

[0051] Figure 11 Schematic diagram showing that the spacing between the door knives of the door knife assembly of the present invention is 38 mm.

[0052] 1 , door opening; 101, opening; 102, tensioning plate; 1021, tensioning shaft; 103, reinforcing plate; 104, guide rail; 105, first limit switch; 106, locking member; 107, second limit switch; 108, unlocking wheel; 109, receiving groove; 110, door machine side reinforcing plate; 200, first door hanging plate; 300, second door hanging plate; 400, door knife assembly; 401, door knife bottom plate; 4011, slide groove; 402, moving member; 403, active member; 4031, through hole; 404, driven member; 4041, first waist-shaped hole; 405, door knife; 406, first elastic member; 407, limiting member; 4071, second waist-shaped Hole; 4072, third roller; 408, release link; 4081, first roller; 4082, second roller; 409, movable lock hook; 4091, protrusion; 410, second elastic member; 411, lock hook plug assembly; 412, unlocking member; 4121, unlocking portion; 413, third elastic member; 414, connecting rod; 500, synchronous belt assembly; 501, driving wheel; 502, driven wheel; 503, synchronous belt; 600, drive motor; 601, motor plate; 602, screw; 700, controller; 701, avoidance; 800, transmission wire rope assembly; 801, pulley; 802, wire rope; 100a, upper hanging wheel; 100b, lower hanging wheel; 100c, door hanging plate plug assembly. DETAILED DESCRIPTION

[0053] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0056] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0057] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0058] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0059] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0060] like Figures 1-11As shown, the utility model provides a compact center-split door machine structure, including a door machine base plate 100, a first door hanging plate 200 and a second door hanging plate 300 for hanging a car door, which are arranged at the front end of the door machine base plate 100 and can slide horizontally along the door machine base plate 100, a door knife assembly 400 connected to the front end of the door hanging plate, and a driving mechanism arranged at the front end of the door machine base plate 100 and capable of driving the first door hanging plate 200 and the second door hanging plate 300 to move closer to or away from each other along the horizontal sliding direction; the driving mechanism includes a synchronous belt assembly 500 arranged in the horizontal direction of the door machine base plate 100, a driving motor 600 for driving the synchronous belt assembly 500 to operate, and a controller 700 connected to the driving motor 600. Specifically, the front end of the door machine base plate 100 is recessed inward to form a receiving groove 109 for accommodating the first door hanging plate 200, the second door hanging plate 300, the door knife assembly 400 and the driving mechanism; the door machine base plate 100 is provided with door machine side reinforcement plates 110 at both ends in the horizontal direction, which play a reinforcing role and can limit the sliding operation range of the first door hanging plate 200 and the second door hanging plate 300; the drive motor 600 adopts a more compact permanent magnet synchronous motor structure with an outer dimension of 126x126x35, strong torque, compact structure, and flexible installation, making the overall structure of the door system more compact; and the controller 700 is directly embedded in the door machine base plate 100, which is convenient for debugging, eliminates the need for additional control system mounting brackets and protective casings, and the overall structure is more coordinated. By adopting the above solution, the entire structure is assembled on the front side of the door machine base plate 100, making the product structure compact. The overall thickness of the door system is controlled at 40 mm, which is much smaller than the 60 mm of the traditional structure. In addition, there is no protrusion behind the door system base plate, and the elevator car structure can be designed without a front wall, effectively saving elevator shaft space. The product has stronger installation adaptability.

[0061] In some embodiments, the front end of the door machine base plate 100 is also provided with a transmission wire rope assembly 800 for connecting the first door hanging plate 200 and the second door hanging plate 300; and the transmission wire rope assembly 800 is relatively arranged below the synchronous belt assembly 500; the controller 700 is fixed on the front end of the door machine base plate 100, and the rear end part of the controller 700 is recessed inward to form an avoidance opening 701 for avoiding the transmission wire rope assembly 800; and the controller 700 is provided with an operation panel and a display screen on its left side, close to the middle position of the door system, for convenient parameter adjustment. Specifically, the wire rope assembly 802 includes pulleys 801 disposed at both ends of the door machine base plate 100 in the horizontal direction, and a wire rope 802 connected between the two pulleys 801. The upper rope of the wire rope 802 is connected to the second door hanging plate 300 via a connector, and the lower rope of the wire rope 802 is connected to the first door hanging plate 200 via a connector, so that the first door hanging plate 200 and the second door hanging plate 300 can move toward each other at the same speed simultaneously, thereby realizing the opening and closing of the elevator door. In some embodiments, the top end of the drive motor 600 is fixed to the top end of the door machine base plate 100 via a motor plate 601, so that the drive motor 600 is suspended in front of the transmission wire rope assembly 800. By adopting the above solution, the avoidance opening 701 can avoid the wire rope 802, and the drive motor 600 is suspended and can avoid the wire rope 802, so that the controller 700 and the drive motor 600 are set close to each other, reducing the size of the entire structure in the height direction, making the structure compact, and reducing costs. In some embodiments, the motor plate 601 is locked to the top of the door machine base plate 100 by a screw 602, and the top of the door machine base plate 100 is provided with an opening 101 for assembling the screw 602, and the size of the opening 101 is the shaft diameter of the screw 602; and, a tensioning plate 102 is fixed on the door machine base plate 100, and a tensioning shaft 1021 is movably connected to the tensioning plate 102, and the tensioning shaft 1021 passes through the tensioning plate 102 and abuts against the motor plate 601, and can push the tensioning plate 102 to move to adjust the tensioning degree of the synchronous belt assembly 500; when the synchronous belt 503 becomes loose during use, the tensioning shaft 1021 is adjusted to push the tensioning plate 102 so that it drives the motor plate 601 to move toward a distance, and the synchronous belt 503 is re-tensioned to ensure normal operation.

[0062] In some embodiments, a reinforcing plate 103 is fixed to the front end of the door machine base plate 100, and the reinforcing plate 103 is relatively arranged in front of the place where the first door hanging plate 200 and the second door hanging plate 300 are in contact with each other; wherein, a guide rail 104 is provided at the front end of the door machine base plate 100 along its horizontal direction, and the first door hanging plate 200 and the second door hanging plate 300 are both slidably connected to the guide rail 104 through the upper hanging wheel 100a and the lower hanging wheel 100b, so as to realize the reciprocating sliding movement of the first door hanging plate 200 and the second door hanging plate 300 relative to the door machine base plate 100 in the horizontal direction; and, the top end of the reinforcing plate 103 is locked to the top end of the door machine base plate 100, so that the reinforcing plate 103 is suspended in front of the synchronous belt assembly 500 and the transmission wire rope assembly 800; the bottom end of the reinforcing plate 103 is locked on the guide rail 104. In some embodiments, the tensioning plate 102 is fixed to the top of the reinforcing plate 103 and is arranged close to the driving motor 600; the left and right ends of the bottom end of the reinforcing plate 103 are provided with a first limit switch 105, and correspondingly, the first door hanging plate 200 and the second door hanging plate 300 are provided with a door hanging plate plug assembly 100c at one end close to the reinforcing plate 103; and, when the first door hanging plate 200 and the second door hanging plate 300 are close to each other until the door hanging plate plug assembly 100c is inserted into the first limit switch 105, the car door is in the closed position.

[0063] In some embodiments, the door knife assembly 400 includes a door knife base plate 401, a moving part 402, an active part 403 and a driven part 404, and the driven part 404 is located at both ends thereof and is rotatably connected to a door knife 405; the door knife base plate 401 is fixed to the front end of the first door hanging plate 200, the active part 403 and the driven part 404 rotate coaxially on the door knife base plate 401, the moving part 402 is connected to the active part 403 and can drive the active part 403 to rotate, and a first elastic part is connected between the active part 403 and the driven part 404 406, so as to realize the synchronous rotation of the active member 403 and the driven member 404; and the driven member 404 can also rotate relative to the active member 403, and a limit member 407 is provided between the driven member 404 and the active member 403, and the limit member 407 is used to limit the rotation range of the driven member 404 relative to the active member 403; a release link 408 is rotatably connected to the active member 403, a first waist-shaped hole 4041 is provided on the driven member 404, a through hole 4031 is provided on the active member 403, and a release link 408 is rotatably connected to the active member 403. The first roller 4081 is rotatably connected to the door knife bottom plate 401, and the first roller 4081 passes through the through hole 4031 and extends into the first waist-shaped hole 4041; a movable lock hook 409 is rotatably connected to the door knife bottom plate 401, and a locking member 106 is provided on the reinforcing plate 103 to lock with the movable lock hook 409; the other end of the release link 408 is connected to a second roller 4082 that contacts the movable lock hook 409, and a protrusion 4091 on the upper part of the movable lock hook 409 protrudes toward one end close to the release link 408; The active member 403 is rotated, and the release link 408 is driven to rotate relative to the active member 403, so that the second roller 4082 on the release link 408 pushes the protrusion 4091 of the movable lock hook 409, driving the movable lock hook 409 to rotate and unlock from the locking member 106. In addition, a second elastic member 410 is connected between the movable lock hook 409 and the door machine base plate 100. The second elastic member 410 can give the movable lock hook 409 a tendency to move downward and lock the movable lock hook 409 on the locking member 106. Specifically, the door machine assembly adopts a synchronous door knife 405 with a car door lock function, which meets the requirements of the latest national standards. The installed thickness of the door knife 405 is only 34.5 mm, which more effectively controls the overall thickness of the door system. The use of the synchronous door knife 405 provides a more comfortable operation.In some embodiments, the limiting member 407 includes a second waist-shaped hole 4071 provided on the active member 403, and a third roller 4072 provided on the driven member 404, wherein the third roller 4072 is partially adapted in the second waist-shaped hole 4071, and the rotation range of the third roller 4072 in the second waist-shaped hole 4071 is the rotation range of the driven member 404 relative to the active member 403; and the driven member 404 is located at its lower half and is rotatably connected to the active member 403 through the main shaft of the door knife 405 to realize the rotation of the driven member 404 relative to the active member 403; and the driven member 404 is rotatably connected between the upper halves of the two door knives 405, and another connecting rod 414 is rotatably connected between the lower halves of the two door knives 405, and the connecting rod 414 is rotatably arranged relative to the door knife base plate 401 to make the size adjustment of the door knife 405 more stable.

[0064] In some embodiments, a hook plug assembly 411 is connected to the top of the movable lock hook 409, a second limit switch 107 is provided at the top of the reinforcement plate 103 near the door blade assembly 400, and when the movable lock hook 409 is locked on the locking member 106, the hook plug assembly 411 is inserted into the second limit switch 107, and the car door is in the fully closed state. In some embodiments, the synchronous belt assembly 500 includes a driving pulley 501 connected to the output end of the drive motor 600, a driven pulley 502 fixed to the door machine bottom plate 100, and a synchronous belt 503 connected to the driving pulley 501 and the driven pulley 502; the moving member 402 is fixedly connected to the lower belt of the synchronous belt 503. Specifically, when the controller 700 issues an operation instruction and drives the drive motor 600 to rotate, thereby driving the driving wheel 501 on the output end of the drive motor 600 to rotate, thereby driving the synchronous belt 503 to move, the moving part 402 on the synchronous belt 503 will drive the active part 403 to operate.

[0065] In some embodiments, a sliding groove 4011 is provided on the door knife base plate 401 along the horizontal direction, and the moving member 402 passes through the sliding groove 4011 and is connected to the active member 403; an unlocking member 412 is rotatably connected to the door knife base plate 401, and the end of the unlocking member 412 close to the reinforcing plate 103 is rotatably connected to the door knife base plate 401, and a third elastic member 413 is connected between the end close to the moving member 402 and the door machine base plate 100, and the third elastic member 413 can give the unlocking member 412 an always downward movement and lock it on the moving member 402. The locking mechanism 406 is configured to lock the locking member 402 and unlock the locking member 412. The locking mechanism 406 is configured to lock the locking member 412 and unlock the locking member 412. The locking mechanism 406 is configured to lock the locking member 412 and unlock the locking member 412. The locking mechanism 406 is configured to lock the locking member 412 and unlock the locking member 412. The locking mechanism 406 is configured to lock the locking member 412 and unlock the locking member 412. The locking member 412 is configured to lock the locking member 412 and unlock the locking member 412. The locking member 412 is configured to lock the locking member 412 and unlock the locking member 412. By adopting the above solution, the reinforcing plate 103 integrates the limit switch, the movable locking hook 409 and the unlocking wheel 108 of the door knife 405, and integrates multiple functions of the synchronous belt 503 tensioning mechanism, and can enhance the overall strength of the door machine base plate 100, simplify the structure and reduce costs.

[0066] Specifically, when the car stops at the leveling area, the door lock roller enters between the two door knives 405, and the moving member 402 moves to the left under the action of the synchronous belt 503. The moving member 402 will drive the active member 403 to rotate to the left along the slide groove 4011 on the door knife base plate 401. Since the two door knives 405 are against the door lock roller, the door lock roller increases the size between the two door knives 405 to 46 mm, and drives the driven member 404 to rotate to the right relative to the active member 403. In addition, the door lock roller restricts the two door knives 405 from approaching each other. The rotation of the moving member 404 is restricted by the door lock roller. At this time, the driven member 404 stops rotating, and the active member 403 continues to rotate under the drive of the moving member 402. Therefore, a misalignment angle is formed between the active member 403 and the driven member 404. In the process of continuous rotation of the active member 403, since the first roller 4081 is locked in the first waist-shaped hole 4041, when the active member 403 continues to rotate to the left, the lower end of the release link 408 will be tilted, so that the second roller 4082 on the release link 408 pushes the protrusion 4081 of the movable lock hook 409. 91, realizes the purpose of pushing the movable lock hook 409 to rotate, so as to unlock the movable lock hook 409 from the locking member 106; in the above process, the unlocking portion 4121 of the unlocking member 412 is in a state of abutting against the unlocking wheel 108, and the top of the unlocking member 412 is in a state of releasing the moving member 402, so that the moving member 402 can move freely in the sliding groove 4011 of the door knife bottom plate 401; at the same time, after the movable lock hook 409 is unlocked from the locking member 106, the unlocking portion 4121 of the unlocking member 412 is disengaged from the unlocking wheel 108, and then the third elastic member Under the action of 413, the top end of the unlocking member 412 is engaged with the moving member 402, so the moving member 402 is restricted and will not move relative to the door knife base plate 401. Then, the continued movement of the synchronous belt 503 will drive the door knife base plate 401 and the active member 403 to move synchronously, and then drive the first door hanging plate 200 to move synchronously. Under the action of the wire rope 802 assembly, the second door hanging plate 300 and the first door hanging plate 200 move in opposite directions at the same speed at the same time. Since the two door knives 405 are tightly engaged with the door knife 405 rollers, the elevator door can be opened.

[0067] After receiving the door closing command, the synchronous belt 503 moves in the opposite direction, which will drive the first door hanging plate 200, the door knife bottom plate 401, and the active member 403 to move to the right synchronously. Under the action of the wire rope 802 assembly, the second door hanging plate 300 and the first door hanging plate 200 move toward each other at the same speed, thereby realizing the closing action of the elevator door. When the unlocking part 4121 of the unlocking member 412 abuts against the unlocking wheel 108, the top of the unlocking member 412 rotates upward to release the moving member 402, and the moving member 402 is released. The moving member 402 rotates to the right under the action of the synchronous belt 503, and drives the active member 403 to rotate to the right. Due to the action of the first elastic member 406, the driven member 404 is driven to rotate to the right synchronously. In the process of continuous rotation of the active member 403, the first roller 4081 is locked in the first waist-shaped hole 4041. Therefore, when the active member 403 continues to rotate to the right, the unlocking portion 4121 of the release link 408 will move downward, so that the second roller on the release link 408 is unlocked. When the second locking member 410 is engaged, the locking member 4082 moves downward and disengages from the protrusion 4091 of the movable locking hook 409. Then, under the action of the second elastic member 410, the movable locking hook 409 moves downward and locks on the locking member 106 to limit the movement of the door knife assembly 400. Since the follower 404 rotates to the right, the follower 404 pushes the distance between the two door knives 405 to enlarge it, and when the movable locking hook 409 is locked on the locking member 106, the distance between the two door knives 405 increases to 71 mm. At the same time, when the movable locking hook 409 is locked on the locking member 106, the locking hook plug assembly 411 is inserted into the second limit switch 107. The door hanging plate plug assembly 100c on the first door hanging plate 200 and the second door hanging plate 300 is inserted into the first limit switch 105. At this time, a door closed position signal is issued. Since the distance between the two door knives 405 is larger than the size of the door lock roller, the lifting movement of the center-split door machine structure will not drive the movement of the elevator door.

[0068] When the elevator is in an abnormal state, the active member 403 and the driven member 404 move synchronously under the action of the first elastic member 406, and the size between the two blades shrinks to 38 mm; then, the blades cannot clamp the door knife 405 roller; at the same time, the unlocking portion 4121 of the release link 408 is in a state of being disengaged from the protrusion 4091 of the movable lock hook 409, and the movable lock hook 409 is locked on the locking member 106 under the action of the third elastic member 413, and the center-split door machine structure cannot drive the elevator door to fully open, thereby ensuring the safety of the passengers in the elevator.

[0069] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0070] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A compact center-opening door machine structure, characterized by: The invention comprises a door machine bottom plate (100), a first door hanging plate (200) and a second door hanging plate (300) which are arranged at the front end of the door machine bottom plate (100) and can slide horizontally along the door machine bottom plate (100) for hanging a car door, a door knife assembly (400) connected to the front end of the door hanging plate, and a driving mechanism which is arranged at the front end of the door machine bottom plate (100) and can drive the first door hanging plate (200) and the second door hanging plate (300) to move closer to or away from each other along the horizontal sliding direction; the driving mechanism comprises a synchronous belt assembly (500) arranged in the horizontal direction along the door machine bottom plate (100), a driving motor (600) for driving the synchronous belt assembly (500) to operate, and a controller (700) connected to the driving motor (600).

2. The compact center-opening door machine structure according to claim 1, characterized in that: The front end of the door machine bottom plate (100) is also provided with a transmission wire rope assembly (800) for connecting the first door hanging plate (200) and the second door hanging plate (300); and the transmission wire rope assembly (800) is relatively arranged below the synchronous belt assembly (500); the controller (700) is fixed on the front end of the door machine bottom plate (100), and the rear end portion of the controller (700) is recessed inward to form an avoidance opening (701) for avoiding the transmission wire rope assembly (800); and the controller (700) is provided with an operation panel and a display screen on its left side.

3. The compact center-opening door machine structure according to claim 2, characterized in that: The top end of the driving motor (600) is fixed to the top end of the door machine bottom plate (100) via a motor plate (601), so that the driving motor (600) is suspended in front of the transmission wire rope assembly (800).

4. The compact center-opening door machine structure according to claim 3 is characterized in that: The motor plate (601) is fixed to the top of the door machine base plate (100) by means of screws (602); the top of the door machine base plate (100) is provided with an opening (101) for assembling the screw (602); the size of the opening (101) is equal to the shaft diameter of the screw (602); and a tensioning plate (102) is fixed to the door machine base plate (100); a tensioning shaft (1021) is movably connected to the tensioning plate (102), the tensioning shaft (1021) passes through the tensioning plate (102) and abuts against the motor plate (601), and can push the tensioning plate (102) to move, so as to adjust the tension of the synchronous belt assembly (500).

5. The compact center-opening door machine structure according to claim 4, characterized in that: A reinforcing plate (103) is fixed to the front end of the door machine bottom plate (100), and the reinforcing plate (103) is relatively arranged in front of the position where the first door hanging plate (200) and the second door hanging plate (300) abut each other; wherein, a guide rail (104) is arranged at the front end of the door machine bottom plate (100) along its horizontal direction, and the first door hanging plate (200) and the second door hanging plate (300) are both slidably connected to the guide rail (104) through an upper hanging wheel (100a) and a lower hanging wheel (100b); and the top end of the reinforcing plate (103) is locked to the top end of the door machine bottom plate (100), so that the reinforcing plate (103) is suspended in front of the synchronous belt assembly (500) and the transmission wire rope assembly (800); the bottom end of the reinforcing plate (103) is locked to the guide rail (104).

6. The compact center-opening door machine structure according to claim 5, characterized in that: The tensioning plate (102) is fixed to the top of the reinforcing plate (103) and is arranged close to the driving motor (600); first limit switches (105) are provided at both left and right ends of the bottom end of the reinforcing plate (103); correspondingly, a door hanging plate plug assembly (100c) is provided at one end of the first door hanging plate (200) and the second door hanging plate (300) close to the reinforcing plate (103); and when the first door hanging plate (200) and the second door hanging plate (300) are close to each other until the door hanging plate plug assembly (100c) is inserted into the first limit switch (105), the car door is in a closed position.

7. The compact center-opening door machine structure according to claim 5, characterized in that: The door knife assembly (400) comprises a door knife base plate (401), a moving part (402), an active part (403) and a driven part (404), wherein the driven part (404) is located at both left and right ends thereof and is rotatably connected to a door knife (405); The door knife base plate (401) is fixed to the front end of the first door hanging plate (200), the active member (403) and the driven member (404) rotate coaxially on the door knife base plate (401), the moving member (402) is connected to the active member (403) and can drive the active member (403) to rotate, and a first elastic member (406) is connected between the active member (403) and the driven member (404) to achieve synchronous rotation of the active member (403) and the driven member (404); and the driven member (404) can also rotate relative to the active member (403). A limiting member (407) is provided between the driven member (404) and the active member (403), and the limiting member (407) is used to limit the rotation range of the driven member (404) relative to the active member (403); a release link (408) is rotatably connected to the active member (403), a first waist-shaped hole (4041) is provided on the driven member (404), a through hole (4031) is provided on the active member (403), and a first roller (4081) is rotatably connected to the release link (408), and the first roller (4081) passes through the through hole (4031) and extends into the release link (408). The first waist-shaped hole (4041); the door knife bottom plate (401) is rotatably connected with a movable lock hook (409), and the reinforcing plate (103) is provided with a locking member (106) that cooperates with the movable lock hook (409) to lock; the other end of the release link (408) is connected with a second roller (4082) that contacts the movable lock hook (409), and the upper part of the movable lock hook (409) is convex toward one end close to the release link (408); after the driven member (404) is subjected to force, it rotates relative to the active member (403) and drives the release member (408) to rotate relative to the active member (403) and drives the release member (408) to rotate relative to the active member (403). The connecting rod (408) rotates relative to the active member (403), so that the second roller (4082) on the release connecting rod (408) pushes the protrusion (4091) of the movable lock hook (409), and drives the movable lock hook (409) to rotate and unlock from the locking member (106); and a second elastic member (410) is connected between the movable lock hook (409) and the door machine bottom plate (100), and the second elastic member (410) can give the movable lock hook (409) a tendency to move downward and cause the movable lock hook (409) to be locked on the locking member (106).

8. The compact center-opening door machine structure according to claim 7, characterized in that: The top end of the movable lock hook (409) is connected to a lock hook plug assembly (411), and the top end of the reinforcing plate (103) close to one end of the door knife assembly (400) is provided with a second limit switch (107), and when the movable lock hook (409) is locked on the locking member (106), the lock hook plug assembly (411) is inserted into the second limit switch (107), and the car door is in a closed position.

9. The compact center-opening door machine structure according to claim 7, characterized in that: The synchronous belt assembly (500) comprises a driving wheel (501) connected to the output end of the driving motor (600), a driven wheel (502) fixed to the door machine bottom plate (100), and a synchronous belt (503) connected to the driving wheel (501) and the driven wheel (502); the moving part (402) is fixedly connected to the lower belt of the synchronous belt (503).

10. The compact center-opening door machine structure according to claim 9, characterized in that: A sliding groove (4011) is provided on the door knife bottom plate (401) along the horizontal direction, and the moving member (402) passes through the sliding groove (4011) and is connected to the active member (403); an unlocking member (412) is rotatably connected to the door knife bottom plate (401), and one end of the unlocking member (412) close to the reinforcing plate (103) is rotatably connected to the door knife bottom plate (401), and a third elastic member (413) is connected between one end close to the moving member (402) and the door machine bottom plate (100), and the third elastic member (413) can give the unlocking member (412) a downward movement and lock it on the moving member (402). and, an unlocking wheel (108) is provided on the reinforcing plate (103), and the unlocking member (412) includes an unlocking portion (4121) that abuts against the unlocking wheel (108); when the synchronous belt (503) moves, the door knife assembly (400) is driven to the unlocking portion (4121) of the unlocking member (412) abuts against the unlocking wheel (108), so that the unlocking member (412) rotates relative to the door knife base plate (401) and the unlocking member (412) is unlocked from the moving member (402), and the moving member (402) can drive the active member (403) to rotate under the drive of the synchronous belt (503).

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