Self-driving hall door device for home elevator and control method

Abstract

The application relates to a self-driving hall door device of a household elevator, which comprises a shaft, a controller, a car provided in the shaft and having an open front end without a car door, a plurality of hall door mechanisms distributed upwards and downwards and corresponding to floors one by one, a car in-position detection module, a hall door detection module and a hall door warning module; the hall door mechanism comprises a door frame arranged at the front end of the shaft, at least one hall door and a hall door driving device arranged on the door frame and provided with a hall door lock. The self-driving hall door device of the household elevator detects the arrival of the car at the hall door position of a set floor through the car in-position detection module, detects the opening or closing of the hall door through the hall door detection module, monitors the warning of the car not being at the floor or not reaching the correct position of the floor when the hall door is opened through the hall door warning module, and the hall door mechanism realizes the self-driving opening and closing of the hall door through the hall door driving device provided with the hall door lock, and is suitable for the household elevator with the hall door opening and closing of the no-car-door low-speed household elevator.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to a self-driven hall door device and control method for a home elevator. Background Technology

[0002] High-rise buildings can improve the space utilization of cities, and they are usually equipped with elevators. The elevator car moves vertically up and down inside the building, while N sets of hall door devices are stationary, located at the corresponding entrances and exits on different floors of the building. Based on safety considerations and redundancy design arising from the conventional elevator situation, the elevator has two barriers consisting of an active car door and a passive hall door, neither of which can function independently. During the elevator car's operation, the car door is closed. Upon reaching the corresponding hall door position, the car door needs to open, and the hall door opens simultaneously. When the elevator departs, the hall door and car door need to close simultaneously. Furthermore, the corresponding components of the car should not interfere with the movement of the stationary hall door during operation.

[0003] Chinese Patent Application No. CN202122373239.1 discloses an elevator hall door opening and closing device and an elevator. The elevator hall door opening and closing device of this application includes: a shaft, a car mechanism and at least one hall door mechanism. The hall door mechanism is located in the shaft and includes at least one hall door. A first action member is provided on the hall door. The car mechanism is movably located in the shaft and includes at least one car door. A second action member is connected to the car door and can generate a traction force with the first action member. When the car door is closed, the hall door is closed under the action of the traction force between the first action member and the second action member. The elevator hall door opening and closing device consists of a first and a second actuator forming a composite unlocking system. Without the pull of the second actuator on the first actuator, although the car door can be opened and closed, people cannot leave the car through the hall door. Moreover, the individual hall door device cannot open on its own, and one set of car door devices can only open one set of hall door devices, and multiple hall door devices cannot be opened simultaneously. In case of an accident and the hall door is opened, the hall door can be forcibly closed by a counterweight or spring to prevent people from accidentally entering the elevator shaft and falling. These are the characteristic elements of the hall door as a passive door.

[0004] According to the standard GB / T21739 Safety Specifications for the Manufacturing and Installation of Home Elevators, low-speed home elevators may not require a car door. However, since the car door cannot drive the hall door to open and close, traditional elevator hall door opening and closing devices are not suitable for low-speed home elevators without car doors. Therefore, designing a self-driven hall door device and control method suitable for low-speed home elevators without car doors has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a self-driven hall door device and control method for a home elevator with a low-speed hall door that is suitable for opening and closing the hall door.

[0006] The specific technical solution of this invention is as follows: A self-driven hall door device for a home elevator includes: a shaft, a controller, a car located in the shaft with an open front end and no car door, multiple hall door mechanisms distributed vertically and corresponding to each floor, a car entry detection module, a hall door detection module, and a hall door warning module; each hall door mechanism includes: a door frame mounted at the front end of the shaft, at least one hall door, and a hall door drive device mounted on the door frame and equipped with a hall door lock; the car entry detection module is used to detect when the car reaches the hall door position of a set floor, the hall door detection module is used to detect whether the hall door is open or closed, and the hall door warning module is used to monitor and issue a warning when the hall door is open and the car is not on the current floor or has not reached the correct position of the current floor; the hall door drive device is used to drive the hall door to open or close, and the hall door lock is used to lock the hall door.

[0007] Preferably, the hall door driving device includes: a door head body connected to the rear end of the upper frame of the door frame; a control box mounted on the door head body; a door motor and a door head guide rail located below the door motor; a tensioning wheel located to the right of the door motor and pivotally connected to the rear end of the door head body; a drive wheel connected to the output shaft of the door motor; a drive belt that is pulverically connected to the drive wheel and the tensioning wheel respectively; two pulleys that are pivotally connected to both ends of the door head guide rail; a wire rope drive belt that is pulverically connected to the two pulleys; a left door hanger assembly that is slidably connected to the door head guide rail and connected to one side of the wire rope drive belt; and a right door hanger assembly that is connected to the other side of the wire rope drive belt; a drive plate that is connected to the drive belt and the right door hanger assembly respectively; the hall door has two doors that open to the left and right; the left door hanger assembly and the right door hanger assembly are connected to the rear ends of the two hall doors respectively; the control box is electrically connected to the door motor and the controller respectively; the left door hanger assembly and the right door hanger assembly are located between the two pulleys.

[0008] Preferably, the hall door driving device includes: a door head body connected to the rear end of the upper frame of the door frame; a control box mounted on the door head body; a door motor and a door head guide rail located below the door motor; a drive wheel connected to the output shaft of the door motor; a driven wheel located on one side of the door motor and pivotally connected to the door head body; a drive belt that is driven and connected to the drive wheel and the driven wheel respectively; two drive plates that are connected to the two sides of the drive belt respectively; one drive plate is connected to the left door hanger assembly, and the other drive plate is connected to the right door hanger assembly; the left door hanger assembly and the right door hanger assembly are connected to the rear ends of the two hall doors respectively; the control box is electrically connected to the door motor and the controller respectively; the axial direction of the drive wheel and the driven wheel is both vertical.

[0009] Preferably, both the left and right door hanging components are equipped with multiple rollers; the outer sides of the rollers are surrounded by annular grooves that block the upper sides of the door head guide rail; the width of the annular grooves is adapted to the thickness of the upper end of the door head guide rail.

[0010] Preferably, the hall door lock includes: a lock body connected to the rear end of the right door hanger assembly; an electromagnet mounted on the lock body; a stepped connecting rod with its small end connected to the lower end of the electromagnet's core; a lock tongue with its upper end connected to the large end of the stepped connecting rod; a return spring fitted over the small end of the stepped connecting rod and with its two ends correspondingly pressing against the lower end of the electromagnet and the upper end of the large end of the stepped connecting rod; an electrical contact mounted on one side of the lock body; a lock plate with a lock hole adapted to the lock tongue and connected to the rear end of the left door hanger assembly; and an electrical switch mounted on the upper part of the lock plate and opposite to the electrical contact. The electrical switch and the coil of the electromagnet are electrically connected to the control box. The electrical contact is used to touch the electrical switch to de-energize the coil.

[0011] Preferably, the car positioning detection module includes: a position sensor mounted on the car for detecting the floor reference position, a speed sensor and a photoelectric sensor mounted at the rear end of the hall door; the position sensor, speed sensor and photoelectric sensor are electrically connected to the controller; the speed sensor is a laser speed sensor.

[0012] Preferably, the hall door detection module is a displacement measurement unit mounted on the hall door; the displacement measurement unit is electrically connected to the controller; the displacement measurement unit is an inductive displacement detection unit.

[0013] Preferably, the hall door warning module includes: a visual sensor and a warning device installed on the hall door; the visual sensor and the warning device are electrically connected to the controller; the warning device is an audible and visual alarm or a voice prompt.

[0014] Preferably, the controller is equipped with a control switch and a display screen; the controller is installed on the upper part of the shaft.

[0015] A control method for a self-driven hall door device of a home elevator, wherein the self-driven hall door device of the home elevator is the aforementioned self-driven hall door device of the home elevator, (1) when the car stops at the set floor hall door position, the position sensor, speed sensor and photoelectric sensor of the car entry detection module are used to detect and confirm that the car is stopped at the floor reference position; (2) the coil of the electromagnet is energized and the latch moves upward to disengage from the lock hole; (3) the door motor of the hall door drive device is started, driving the left door hoist assembly and the right door hoist assembly to drive the two hall doors to move to the left and right respectively to open the hall doors; (4) the displacement measurement unit of the hall door detection module is used to detect and confirm that the hall door is open; (5) when the visual sensor of the hall door warning module detects that the hall door is open and the car is not on the current floor or has not reached the correct position of the current floor, the alarm is triggered; (6) the hall door is started. The door motor of the drive unit drives the left door crane assembly and the right door crane assembly to move the two hall doors to the right and left respectively to close the hall doors. The electrical contacts touch the electrical switch to de-energize the coil. Under the action of the reset spring, the lock tongue moves downward to insert into the lock hole to lock the hall door. After that, the car moves to the newly set floor hall door position that needs to be replaced; (7) In the maintenance state, as needed, the controller can control the hall doors of multiple hall door mechanisms to open and close the doors simultaneously, or control the hall doors of multiple hall door mechanisms to open and close the doors separately according to different set delay times; (8) In the maintenance state, as needed, the controller can control the hall doors to achieve different opening widths. The position of the car in the hoistway can be observed through the opened hall door. Only after confirming that there is no danger can the car enter the hoistway, preventing maintenance personnel from opening the door rashly and causing the risk of personnel falling into the hoistway because the car is not on the same floor.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: The self-driven hall door device of the described home elevator detects the car's arrival at the set floor hall door position through a car entry detection module, detects the opening or closing of the hall door through a hall door detection module, and provides a warning through a hall door warning module when the hall door is open and the car is not on the current floor or has not reached the correct position on the current floor. The hall door mechanism achieves self-driven hall door opening and closing through a hall door drive device equipped with a hall door lock, which is suitable for home elevators with hall door opening and closing in low-speed home elevators without car doors. The hall door drive device and hall door lock structure are practical and reliable. The controller is equipped with a control switch and a display screen, which facilitates observation and control operation.

[0017] For home elevators without car doors, the solution provided by this invention completely overturns the traditional elevator door opening and closing solution. Its main components have also undergone substantial changes. Unlike the traditional elevator door opening and closing method, this solution does not require a car door motor drive or a composite unlocking system on the car door (hall door device). It only requires a controller + N-layer active self-driven hall door mechanism to realize the automatic opening and closing of a single-layer hall door device, or the simultaneous opening and closing of multiple hall door devices.

[0018] The self-driven hall door device can be used without a car door operator, requiring only a positioning signal from the control cabinet. It is suitable not only for single-entry elevators but also for multi-entry systems, including situations with multiple entrances / exits on the same floor. All hall doors can open and close simultaneously, or at different times with delayed opening / closing (including no opening). It is even suitable for multi-story, multi-set hall door systems on different floors. During maintenance, the controller can control multiple hall door mechanisms to simultaneously and automatically open and close, or control multiple hall door mechanisms to automatically and delayedly open and close according to different set delay times. The controller can control different opening widths of the hall doors, allowing observation of the car's position in the hoistway through the opened doors. Entry into the hoistway is only permitted after confirming there is no danger, preventing maintenance personnel from recklessly opening doors and falling into the hoistway if the car is not on the current floor.

[0019] In traditional elevators, the door motors are centrally located on the car, and the unlocking system is also centrally located on the car door. In self-driven hall door systems, the door motors are distributed across multiple hall door mechanisms, and the unlocking devices are also distributed across multiple hall door mechanisms. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the hall door drive device; Figure 3 This is a schematic diagram of another type of hall door drive device; Figure 4 This is a structural diagram of the hall door lock.

[0021] In the diagram: 1. Hoistway; 2. Controller; 3. Car; 4. Hall door; 5. Hall door lock; 6. Upper frame; 7. Door head body; 8. Control box; 9. Door motor; 10. Door head guide rail; 11. Tensioning wheel; 12. Drive belt; 13. Pulley; 14. Wire rope drive belt; 15. Left door crane assembly; 16. Right door crane assembly; 17. Drive plate; 18. Roller; 19. Ring groove; 20. Lock body; 21. Iron core; 22. Step connecting rod; 23. Lock tongue; 24. Return spring; 25. Electrical contact; 26. Lock plate; 27. Electrical switch; 28. Coil; 29. ​​Position sensor; 30. Laser speed sensor; 31. Photoelectric sensor; 32. Inductive displacement measurement unit; 33. Vision sensor; 34. Audible and visual alarm; 35. Hall door drive device; 36. Drive wheel; 37. Driven wheel. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] Example 1, as shown in the attached document Figure 1 Appendix Figure 2Appendix Figure 4 The image shows a self-driven hall door device for a home elevator, comprising: a shaft 1; a controller 2 mounted on the upper part of the shaft 1 and equipped with a control switch (not shown) and a display screen (not shown); a car 3 located in the shaft 1 with an open front end and no car door; two hall door mechanisms distributed vertically and corresponding to each floor; a car entry detection module; a hall door detection module; and a hall door warning module. The car entry detection module is used to detect when the car 3 reaches the hall door position of a set floor; the hall door detection module is used to detect whether the hall door is open or closed; and the hall door warning module is used to monitor and issue a warning when the hall door is open and the car 3 is not on the current floor or has not reached the correct position on the current floor.

[0024] The hall door mechanism includes: a door frame installed at the front end of the shaft 1, two hall doors 4 that open to the left and right, and a hall door drive device 35 equipped with a hall door lock 5; the hall door drive device 35 is used to drive the hall door 4 to open or close, and the hall door lock 5 is used to lock the hall door 4.

[0025] The aforementioned door drive device 35 includes: a door head body 7 screwed to the rear end of an upper frame 6 provided with the door frame; a control box 8, a door motor 9, and a door head guide rail 10 located below the door motor 9 mounted on the door head body 7; a tension wheel 11 located to the right of the door motor 9 and pivotally connected to the rear end of the door head body 7 via a bearing; a drive wheel (not shown) keyed to the output shaft of the door motor 9; a drive belt 12 that is transmitted and connected to the drive wheel and the tension wheel 11 respectively; two pulleys 13 that are pivotally connected to both ends of the door head guide rail 10 via bearings; and two... The pulley 13 is connected to a wire rope drive belt 14. A left door hanger assembly 15 and a right door hanger assembly 16 are connected to one side of the wire rope drive belt 14 and the other side of the wire rope drive belt 14, respectively. A drive plate 17 is screwed to the lower side of the drive belt 12 and the right door hanger assembly 16. The left door hanger assembly 15 and the right door hanger assembly 16 are connected to the rear ends of the two hall doors 4 one by one. The control box 8 is electrically connected to the door motor 9 and the controller 2 respectively. The left door hanger assembly 15 and the right door hanger assembly 16 are located between the two pulleys 13. The left door hanger assembly 15 and the right door hanger assembly 16 are each equipped with two rollers 18. The outer side of the rollers 18 is surrounded by annular grooves 19 on both sides of the upper end of the door head guide rail 10, which are correspondingly blocked. The width of the annular grooves 19 is fitted with the thickness of the upper end of the door head guide rail 10.

[0026] The hall door lock 5 includes: a lock body 20 screwed to the rear end of the right door hanger assembly 16; an electromagnet mounted on the lock body 20; a stepped connecting rod 22 with its small end screwed to the lower end of the electromagnet's core 21; a latch 23 with its upper end screwed to the large end of the stepped connecting rod 22; a return spring 24 sleeved on the small end of the stepped connecting rod 22 and with both ends corresponding to each other, pressing against the lower end of the electromagnet and the upper end of the large end of the stepped connecting rod 22; an electrical contact 25 mounted on one side of the lock body 20; a lock plate 26 with a lock hole (not shown) that fits with the latch 23 and is screwed to the rear end of the left door hanger assembly 15; and an electrical switch 27 mounted on the upper end of the lock plate 26 and opposite to the electrical contact 25. The electrical switch 27 and the electromagnet's coil 28 are electrically connected to the control box 8. The electrical contact 25 is used to touch the electrical switch 27 to de-energize the coil 28.

[0027] The car positioning detection module includes: a position sensor 29 mounted on the car 3 for detecting the floor reference position, a laser speed sensor 30 and a photoelectric sensor 31 mounted at the rear end of the hall door 4; the position sensor 29, the laser speed sensor 30 and the photoelectric sensor 31 are electrically connected to the controller 2 respectively.

[0028] The hall door detection module is an inductive displacement measuring unit 32 installed on the hall door 4; the inductive displacement measuring unit 32 is electrically connected to the controller 2.

[0029] The hall door warning module includes a visual sensor 33 and an audible and visual alarm 34 mounted on the hall door 4; the visual sensor 33 and the audible and visual alarm 34 are electrically connected to the controller 2 respectively.

[0030] A control method for a self-driven hall door device of a home elevator: (1) When the car 3 stops at the position of the hall door 4 on the set floor, the position sensor 29, laser speed sensor 30 and photoelectric sensor 31 of the car entry detection module are used to detect and confirm that the car 3 is stopped at the floor reference position; (2) The coil 28 of the electromagnet is energized and the latch 23 moves upward to disengage from the lock hole; (3) The door motor 9 of the hall door drive device 35 is started, driving the left door hanging assembly 15 and the right door hanging assembly 16 to drive the two hall doors 4 to move to the left and right respectively to open the hall doors 4; (4) The inductive displacement measurement unit 32 of the hall door detection module is used to detect and confirm that the hall door 4 is open; (5) When the visual sensor 33 of the hall door warning module detects that the hall door 4 is open and the car 3 is not on the floor or has not reached the correct position of the floor, the audible and visual alarm 34 will sound an alarm; (6) The door motor 9 of the hall door drive device 35 is started to drive the left door The hoisting assembly 15 and the right door hoisting assembly 16 drive the two hall doors 4 to move to the right and left respectively to close the hall doors 4. The electrical contact 25 touches the electrical switch 27 to de-energize the coil 28 of the electromagnet. Under the action of the return spring 24, the locking tongue 23 moves downward to insert into the lock hole to lock the hall door 4. Then the car 3 moves to the newly set floor hall door 4 position that needs to be replaced; (7) In the maintenance state, as needed, the controller 2 can control the hall doors 4 of multiple hall door 4 mechanisms to open and close the doors simultaneously, or control the hall doors 4 of multiple hall door 4 mechanisms according to different set delay times, and open and close the doors separately with delay; (8) In the maintenance state, as needed, the controller 2 can control the hall doors 4 to achieve different opening widths. The position of the car 3 in the hoistway 1 can be observed through the opened hall door 4. Only after confirming that there is no danger can the car enter the hoistway 1, preventing maintenance personnel from opening the door rashly and causing the risk of personnel falling into the hoistway 1 because the car 3 is not on the same floor.

[0031] Example 2, as shown in the attached document Figure 1 Appendix Figure 3 Appendix Figure 4 The image shows a self-driven hall door device for a home elevator, comprising: a shaft 1; a controller 2 mounted on the upper part of the shaft 1 and equipped with a control switch (not shown) and a display screen (not shown); a car 3 located in the shaft 1 with an open front end and no car door; two hall door mechanisms distributed vertically and corresponding to each floor; a car entry detection module; a hall door detection module; and a hall door warning module. The car entry detection module is used to detect when the car 3 reaches the hall door position of a set floor; the hall door detection module is used to detect whether the hall door is open or closed; and the hall door warning module is used to monitor and issue a warning when the hall door is open and the car 3 is not on the current floor or has not reached the correct position on the current floor.

[0032] The hall door mechanism includes: a door frame installed at the front end of the shaft 1, two hall doors 4 that open to the left and right, and a hall door drive device 35 equipped with a hall door lock 5; the hall door drive device 35 is used to drive the hall door 4 to open or close, and the hall door lock 5 is used to lock the hall door 4.

[0033] The hall door drive device 35 includes: a door head body 7 screwed to the rear end of the upper frame 6 provided with the door frame; a control box 8, a door motor 9, and a door head guide rail 10 located below the door motor 9 mounted on the door head body 7; a drive wheel 36 keyed to the output shaft of the door motor 9; a driven wheel 37 located to the right of the door motor 9 and pivotally connected to the door head body 7 via a bearing; a drive belt 12 that is transmitted and connected to the drive wheel 36 and the driven wheel 37 respectively; two drive plates 17 that are connected to the two sides of the drive belt 12 respectively; one drive plate 17 is screwed to the left door hanger assembly 15, and the other drive plate 17 is screwed to the right door hanger assembly 16; the left door hanger assembly 15 and the right door hanger assembly 16 are screwed to the rear ends of the two hall doors 4 respectively; the control box 8 is electrically connected to the door motor 9 and the controller 2 respectively; the axial direction of the drive wheel 36 and the driven wheel 37 is both up and down. Both the left door hanging assembly 15 and the right door hanging assembly 16 are provided with two rollers 18; the outer sides of the rollers 18 are provided with annular grooves 19 on both sides of the upper end of the door head guide rail 10, which are corresponding to each other; the width of the annular grooves 19 is matched with the thickness of the upper end of the door head guide rail 10.

[0034] The hall door lock 5 includes: a lock body 20 screwed to the rear end of the right door hanger assembly 16; an electromagnet mounted on the lock body 20; a stepped connecting rod 22 with its small end screwed to the lower end of the electromagnet's core 21; a latch 23 with its upper end screwed to the large end of the stepped connecting rod 22; a return spring 24 sleeved on the small end of the stepped connecting rod 22 and with both ends corresponding to each other, pressing against the lower end of the electromagnet and the upper end of the large end of the stepped connecting rod 22; an electrical contact 25 mounted on one side of the lock body 20; a lock plate 26 with a lock hole (not shown) that fits with the latch 23 and is screwed to the rear end of the left door hanger assembly 15; and an electrical switch 27 mounted on the upper end of the lock plate 26 and opposite to the electrical contact 25. The electrical switch 27 and the electromagnet's coil 28 are electrically connected to the control box 8. The electrical contact 25 is used to touch the electrical switch 27 to de-energize the coil 28.

[0035] The car positioning detection module includes: a position sensor 29 mounted on the car 3 for detecting the floor reference position, a laser speed sensor 30 and a photoelectric sensor 31 mounted at the rear end of the hall door 4; the position sensor 29, the laser speed sensor 30 and the photoelectric sensor 31 are electrically connected to the controller 2 respectively.

[0036] The hall door detection module is an inductive displacement measuring unit 32 installed on the hall door 4; the inductive displacement measuring unit 32 is electrically connected to the controller 2.

[0037] The hall door warning module includes a visual sensor 33 and an audible and visual alarm 34 mounted on the hall door 4; the visual sensor 33 and the audible and visual alarm 34 are electrically connected to the controller 2 respectively.

[0038] A control method for a self-driven hall door device of a home elevator: (1) When the car 3 stops at the position of the hall door 4 on the set floor, the position sensor 29, laser speed sensor 30 and photoelectric sensor 31 of the car entry detection module are used to detect and confirm that the car 3 is stopped at the floor reference position; (2) The coil 28 of the electromagnet is energized and the latch 23 moves upward to disengage from the lock hole; (3) The door motor 9 of the hall door drive device 35 is started, driving the left door hanging assembly 15 and the right door hanging assembly 16 to drive the two hall doors 4 to move to the left and right respectively to open the hall doors 4; (4) The inductive displacement measurement unit 32 of the hall door detection module is used to detect and confirm that the hall door 4 is open; (5) When the visual sensor 33 of the hall door warning module detects that the hall door 4 is open and the car 3 is not on the floor or has not reached the correct position of the floor, the audible and visual alarm 34 will sound an alarm; (6) The door motor 9 of the hall door drive device 35 is started to drive the left door The hoisting assembly 15 and the right door hoisting assembly 16 drive the two hall doors 4 to move to the right and left respectively to close the hall doors 4. The electrical contact 25 touches the electrical switch 27 to de-energize the coil 28 of the electromagnet. Under the action of the return spring 24, the locking tongue 23 moves downward to insert into the lock hole to lock the hall door 4. Then the car 3 moves to the newly set floor hall door 4 position that needs to be replaced; (7) In the maintenance state, as needed, the controller 2 can control the hall doors 4 of multiple hall door 4 mechanisms to open and close the doors simultaneously, or control the hall doors 4 of multiple hall door 4 mechanisms according to different set delay times, and open and close the doors separately with delay; (8) In the maintenance state, as needed, the controller 2 can control the hall doors 4 to achieve different opening widths. The position of the car 3 in the hoistway 1 can be observed through the opened hall door 4. Only after confirming that there is no danger can the car enter the hoistway 1, preventing maintenance personnel from opening the door rashly and causing the risk of personnel falling into the hoistway 1 because the car 3 is not on the same floor.

[0039] In addition to the embodiments described above, within the scope disclosed in the claims and specification of this invention, the technical features or technical data of this invention can be reselected and combined to form new embodiments. These can be achieved by those skilled in the art without creative effort. Therefore, these embodiments not described in detail in this invention should also be regarded as specific embodiments of this invention and within the protection scope of this invention.

Claims

1. A self-driven hall door device for a home elevator, comprising: The hoistway and controller are characterized in that the self-driven hall door device of the home elevator further includes: a car located in the hoistway with an open front end and no car door, multiple hall door mechanisms distributed vertically, a car entry detection module, a hall door detection module, and a hall door warning module; the hall door mechanism includes: a door frame installed at the front end of the hoistway, at least one hall door, and a hall door drive device installed on the door frame and equipped with a hall door lock; The hall door drive device includes a left door hanger assembly and a right door hanger assembly that are connected to the rear ends of the two hall doors respectively; The hall door lock includes: a lock body connected to the rear end of the right door hanger assembly; an electromagnet mounted on the lock body; a stepped connecting rod whose small end is connected to the lower end of the electromagnet's core; a lock tongue connected to the large end of the stepped connecting rod; a return spring fitted over the small end of the stepped connecting rod and whose two ends correspond to each other, pressing against the lower end of the electromagnet and the upper end of the large end of the stepped connecting rod; an electrical contact mounted on one side of the lock body; a lock plate with a lock hole adapted to the lock tongue and connected to the rear end of the left door hanger assembly; and an electrical switch mounted on the upper part of the lock plate and opposite to the electrical contact. The electrical switch and the coil of the electromagnet are electrically connected to the control box. The control box is electrically connected to the controller; The car positioning detection module includes a position sensor mounted on the car for detecting the floor reference position, a speed sensor and a photoelectric sensor mounted at the rear of the landing door; the position sensor, speed sensor and photoelectric sensor are electrically connected to the controller.

2. The self-driven hall door device for a home elevator according to claim 1, characterized in that, The hall door drive device includes: a door head body connected to the rear end of the upper frame of the door frame; a control box mounted on the door head body; a door motor and a door head guide rail located below the door motor; a tensioning wheel located to the right of the door motor and pivotally connected to the rear end of the door head body; a drive wheel connected to the output shaft of the door motor; a drive belt that is pulverizedly connected to the drive wheel and the tensioning wheel respectively; two pulleys that are pivotally connected to both ends of the door head guide rail respectively; a wire rope drive belt that is pulverizedly connected to the two pulleys; a left door hanger assembly that is slidably connected to the door head guide rail and connected to one side of the wire rope drive belt; and a right door hanger assembly that is connected to the other side of the wire rope drive belt; and a drive plate that is connected to the drive belt and the right door hanger assembly respectively; the hall door has two doors that open to the left and right; the control box is electrically connected to the door motor and the controller respectively.

3. The self-driven hall door device for a home elevator according to claim 1, characterized in that, The aforementioned hall door drive device includes: a door head body connected to the rear end of the upper frame of the door frame; a control box mounted on the door head body; a door motor and a door head guide rail located below the door motor; a drive wheel connected to the output shaft of the door motor; a driven wheel located on one side of the door motor and pivotally connected to the door head body; a drive belt that is driven and transmitted to the drive wheel and the driven wheel respectively; two drive plates that are connected to the two sides of the drive belt respectively; one drive plate is connected to the left door hanger assembly, and the other drive plate is connected to the right door hanger assembly; the left door hanger assembly and the right door hanger assembly are connected to the rear ends of the two hall doors respectively; and the control box is electrically connected to the door motor and the controller respectively.

4. The self-driven hall door device for a home elevator according to claim 2 or 3, characterized in that, Both the left and right door hanging components are equipped with multiple rollers; the outer sides of the rollers are surrounded by annular grooves that block the upper sides of the door head guide rail.

5. The self-driven hall door device for a home elevator according to claim 1, 2, or 3, characterized in that, The aforementioned hall door detection module is a displacement measurement unit installed on the hall door; the displacement measurement unit is electrically connected to the controller.

6. The self-driven hall door device for a home elevator according to claim 1, 2, or 3, characterized in that, The hall door warning module includes: a visual sensor and an alarm installed on the hall door; the visual sensor and the alarm are electrically connected to the controller respectively.

7. The self-driven hall door device for a home elevator according to claim 1, 2, or 3, characterized in that, The controller is equipped with a control switch and a display screen.

8. A control method for a self-driven hall door device of a home elevator, wherein the self-driven hall door device of the home elevator is the self-driven hall door device of any one of claims 1 to 7, characterized in that, (1) When the car stops at the set floor hall door position, the position sensor, speed sensor and photoelectric sensor of the car entry detection module are used to detect and confirm that the car is stopped at the floor reference position; (2) The coil of the electromagnet is energized and the lock tongue moves upward to disengage from the lock hole; (3) The door motor of the hall door drive device is started, driving the left door crane assembly and the right door crane assembly to drive the two hall doors to move to the left and right respectively to open the hall doors; (4) The displacement measurement unit of the hall door detection module is used to detect and confirm that the hall door is open; (5) When the visual sensor of the hall door warning module detects that the hall door is open and the car is not on the floor or has not reached the correct position of the floor, the alarm is triggered; (6) The door motor of the hall door drive device is started, driving the left door crane assembly and the right door crane assembly to drive the two doors to move to the left and right respectively to open the hall doors. The hall doors move to the right and left respectively to close the hall doors. The electrical contacts touch the electrical switch to de-energize the coil. Under the action of the reset spring, the lock tongue moves downward to insert into the lock hole to lock the hall door. After that, the car moves to the newly set floor hall door position that needs to be replaced; (7) In the maintenance state, as needed, the controller can control the hall doors of multiple hall door mechanisms to open and close simultaneously by self-driving, or control the hall doors of multiple hall door mechanisms to open and close by self-driving with delay according to different set delay times; (8) In the maintenance state, as needed, the controller can control the hall doors to achieve different opening widths. The position of the car in the hoistway can be observed through the opened hall door. Only after confirming that there is no danger can the car enter the hoistway, preventing maintenance personnel from opening the door rashly and causing the risk of personnel falling into the hoistway because the car is not on the same floor.

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