Elevator door structure for vertical elevator

Abstract

The present invention discloses an elevator door structure for a vertical elevator, the opening and closing mechanism comprising an inner cavity, the inner cavity being arranged inside the elevator door, the inner wall of the inner cavity being arranged with a through slot, the inner wall of the through slot being movably connected with two arc plates through a connecting assembly, the outer surfaces of the arc plates on both sides being fitted with each other, the outer surfaces of the arc plates being threadedly connected with screws, the outer surface of the screw being provided with a fixed bearing, the outer surface of the fixed bearing being penetrated and fixedly connected with a fixed plate, the outer surface of the fixed plate being fixedly connected with the inner wall of the sliding cavity, and relating to the technical field of vertical elevators, solving the problem that the elevator door of an existing vertical elevator cannot sense or senses in time at the end of a closing stroke, causing the elevator door to continue to close, thereby easily causing harm to passengers, and at the same time, due to the locking of electrical components, the elevator door is difficult to open when the elevator fails, causing increased difficulty in rescue, and the maintenance cost is increased by prying open the elevator door for rescue.

Description

Technical Field

[0001] The invention relates to the technical field of vertical elevators, in particular to an elevator door structure for a vertical elevator. Background Art

[0002] The vertical elevator is powered by an electric motor and is equipped with a box-shaped pod for carrying people or goods in multi-story buildings. The patent application number is 2016108311205, which is a smart vertical elevator dedicated to two-story villas. It includes a lower elevator frame, an upper elevator frame and a control box. The upper elevator frame and the lower elevator frame are arranged up and down and separated by a floor in the middle. The device can automatically detect people taking the elevator and automatically open the elevator door. It also has the function of controlling the elevator with sound, so that the degree of automation is high, the structure is simple, the space occupied is small, and the operation is stable.

[0003] Although this device has the above advantages, it uses the same driving device as the existing vertical elevator, so it has the following defects:

[0004] 1) Although existing vertical elevators are equipped with sensing devices, when passengers place their limbs between the two sides of the elevator doors for sensing at the end of the elevator door closing stroke, the sensing device often fails to sense the elevator door, or the sensing device is not timely, causing the elevator door to continue to close, which can easily cause harm to passengers.

[0005] 2) Due to the electrical components installed in the existing elevator doors, the elevator doors will be locked after closing. When the elevator breaks down or malfunctions, the elevator doors will be locked and cannot be easily opened, which increases the difficulty of rescuing passengers inside the car. In addition, the elevator doors are difficult to open and external tools will be used to pry them open, which can easily cause damage to the elevator doors and increase maintenance costs.

[0006] Therefore, it is necessary to solve the above-mentioned problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an elevator door structure for a vertical elevator, which solves the problems that the existing vertical elevator door cannot sense or senses untimely at the end of the closing stroke, causing the door to continue closing, which can easily cause harm to passengers; at the same time, due to the locking of electrical components, when the elevator fails, the door is difficult to open, increasing the difficulty of rescue, and prying open the door for rescue leads to increased maintenance costs.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an elevator door structure for a vertical elevator, comprising a car, a doorway is provided on the car, both sides of the inner wall of the doorway are movably connected with elevator doors, an opening and closing mechanism is provided on the elevator door, a through sliding cavity is provided on both sides of the interior of the car, the outer surface of the elevator door is movably connected to the inner surface of the sliding cavity, a limiting groove is provided on the inner wall of the sliding cavity, the outer surface of the elevator door is fixedly connected to a limiting strip, and the outer surface of the limiting strip is movably connected to the inner surface of the limiting groove;

[0009] The opening and closing mechanism includes an inner cavity, which is opened inside the ladder door, and the inner wall of the inner cavity is provided with a through slot, and the inner wall of the through slot is movably connected to two arc plates through a connecting component, and the outer surfaces of the arc plates on both sides are in contact with each other, and the outer surfaces of the arc plates are threadedly connected with a screw, and the outer surface of the screw is provided with a fixed bearing, and the outer surface of the fixed bearing is fixedly connected with a fixed plate through, and the outer surface of the fixed plate is fixedly connected to the inner wall of the sliding cavity, and the inner wall of the fixed bearing is fixedly connected with a spring rod, and the outer surface of the screw is provided with a slot, and the inner surface of the slot is provided with a matching slot, and the outer surface of the spring rod is movably connected to the inner surface of the matching slot, and the outer surface of the spring rod is snapped with the inner surface of the slot, and the inner cavity is movably connected with a servo motor, and the output end of the servo motor is fixedly connected to one end of the screw through a coupling, and the outer surface of the servo motor is fixedly connected with a mounting plate, and both sides of the outer surface of the mounting plate are movably connected with slides, and the outer surfaces of the slides on both sides are fixedly connected to the inner wall of the inner cavity.

[0010] Preferably, the connecting assembly includes a circular sleeve and a clamping groove, the circular sleeve is arranged on the outside of the arc plate, the inner surface of the circular sleeve is fixedly connected to the inner surface of the through groove, the clamping groove is opened on the outer surface of the arc plate, the inner wall of the circular sleeve is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to a clamping plate, and the outer surface of the clamping plate is movably connected to the inner surface of the clamping groove.

[0011] Preferably, the inner wall of the circular sleeve is fixedly connected to a limit bearing, a retraction unit is provided on the limit bearing, a telescopic rod is fixedly connected to the inner wall of the limit bearing, and the output end of the telescopic rod is connected to the outer surface of the arc plate through the retraction unit.

[0012] Preferably, the folding unit includes an embedding groove and a permanent magnet, the outer surface of the permanent magnet is fixedly connected to the output end of the telescopic rod, the outer surface of the permanent magnet is fixedly connected to the outer surface of the arc plate, and the embedding groove is provided on the outer surface of the limit bearing.

[0013] Preferably, an insulating ring is fixedly connected to the inner surface of the embedded groove, and a ring-shaped coil is arranged inside the insulating ring. The ring-shaped coil generates a magnetic field when energized, and the ring-shaped coil interacts with the permanent magnet through the magnetic force of the magnetic field.

[0014] Preferably, the screw rod comprises two short rods, one ends of the two short rods are fitted together, the outer surfaces of the two short rods are provided with connecting grooves, the inner surfaces of the connecting grooves are movably connected with connecting strips, both sides of the connecting strips are threadedly connected with screws, and the outer surfaces of the screws on both sides are respectively threadedly connected to the inner sides of the two short rods.

[0015] Preferably, an inner groove is opened inside the short rod on one side, the inner surface of the inner groove is movably connected to the inner surface of the slot, an airbag is fixedly connected to the inner wall of the inner groove, the outer surface of the airbag is movably connected to the inner surface of the slot, and the outer surface of the airbag is movably connected to the output end of the spring rod.

[0016] Preferably, the outer surface of the airbag is fixedly connected to a push plate, and the outer surface of the push plate is slidably connected to the inner surface of the inner groove, and the outer surface of the push plate is fixedly connected to a screw tube, and the outer surface of the screw tube is movably connected to the inner surface of the inner groove, and the inner surface of the screw tube is threadedly connected to a screw rod, and the outer surface of the screw rod is rotatably connected to the inner surface of the inner groove, and the outer surface of the screw rod is rotatably connected to the inside of a short rod on one side, and one end of the screw rod is fixedly connected to one end of the short rod on the other side.

[0017] Beneficial Effects

[0018] The present invention provides an elevator door structure for a vertical elevator. Compared with the prior art, it has the following beneficial effects:

[0019] (1) By setting up an opening and closing mechanism, a servo motor is used to drive the screw to rotate forward and backward, and the screw is connected to the arc plates on both sides through threads, so as to control the opening and closing of the elevator doors on both sides. By controlling the two arc plates to disengage from the screw, the elevator doors can be in an independent active state, so that the elevator doors are not controlled by external forces, avoiding the problem of passengers being pinched due to untimely sensing and the problem of the elevator doors being locked and difficult to open during the rescue process.

[0020] (2) By setting a connecting component, a limit bearing and a telescopic rod, the arc plate can be limited and the connection between the arc plate and the screw can be controlled. At the same time, the hydraulic rod clamps and fixes the arc plate through the connection between the clamping plate and the clamping groove, so that the circular sleeve, the arc plate and the elevator door are integrated. Then, the opening and closing of the elevator door can be controlled by the drive of the servo motor. After being separated from the clamping of the clamping plate, the arc plate can only rotate with the screw and cannot drive the elevator door to open and close, thereby avoiding pinching and the problem of the elevator door being difficult to open due to elevator failure.

[0021] (3) By setting up the retracting unit, the annular coil is energized to generate a magnetic field, and the inner circle magnetic poles are the same. The magnetic poles can be changed by controlling the direction of the current. Since the permanent magnet is fixed, the magnetic field poles are fixed. Therefore, through magnetic repulsion and attraction, and changing the inner circle magnetic poles of the annular coil, the connection between the arc plate and the screw can be controlled, so that when the elevator fails and rescue is required, the elevator door can be opened quickly, and the screw can also be replaced, so as to facilitate the long-term use of the device.

[0022] (4) By setting up structures such as screws and utilizing the functions of connecting grooves and connecting strips, the two short rods can be assembled into one, thereby controlling the opening and closing of the elevator door. At the same time, after disassembly, the short rod on one side is rotated to drive the screw rod to rotate, so that the screw tube squeezes the airbag through the push plate, so that the airbag pushes the output end of the spring rod out from the inside of the slot, thereby facilitating the replacement of the screw after it is worn out. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the internal structure of the present invention;

[0024] Figure 2 is a cross-sectional view of the internal structure of the elevator door of the present invention;

[0025] Figure 3 This is a disassembled diagram of the external structure of the screw of the present invention;

[0026] Figure 4 The internal structure of the screw rod of the present invention is disassembled;

[0027] Figure 5 The figure is a disassembled diagram of the external structure of the slide of the present invention;

[0028] Figure 6 The figure is a disassembled diagram of the external structure of the arc plate of the present invention;

[0029] Figure 7 This is a disassembled diagram of the external structure of the limit bearing of the present invention.

[0030] In the figure: 1, car; 2, elevator door; 3, opening and closing mechanism; 31, inner cavity; 32, through groove; 33, connecting assembly; 331, round sleeve; 332, clamping groove; 333, hydraulic rod; 334, clamping plate; 335, limit bearing; 336, retracting unit; 3361, embedded groove; 3362, permanent magnet; 3363, insulating ring; 3364, annular coil; 337, telescopic rod; 34, arc plate; 35, screw Rod; 351, short rod; 352, connecting groove; 353, connecting strip; 354, screw; 355, inner groove; 356, airbag; 357, push plate; 358, screw tube; 359, screw rod; 36, fixed bearing; 37, fixed plate; 38, spring rod; 39, slot; 310, fitting slot; 311, servo motor; 312, mounting plate; 313, slide; 4, slide cavity; 5, limit slot; 6, limit strip. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-7 , the present invention provides a technical solution: an elevator door structure for a vertical elevator:

[0033] Embodiment 1:

[0034] Reference Manual Attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 5, including a car 1, the interior of the device is made of pressure-resistant and wear-resistant materials, a doorway is provided on the car 1, and both sides of the inner wall of the doorway are movably connected with elevator doors 2, a maintenance passage (not shown in the figure) is provided on the elevator door 2, and a blocking door is provided inside the maintenance passage, and an automatic telescopic member (not shown in the figure) is installed on the blocking door, and the automatic telescopic member is only retracted under the control of a maintenance signal, and an opening and closing mechanism 3 is provided on the elevator door 2, and a through sliding cavity 4 is provided on both sides of the interior of the car 1, the outer surface of the elevator door 2 is movably connected to the inner surface of the sliding cavity 4, and a limiting groove 5 is provided on the inner wall of the sliding cavity 4, and the limiting groove 5 and the interior of the sliding cavity 4 are connected to the interior of the doorway, and the outer surface of the elevator door 2 is fixedly connected to a limiting strip 6, and the outer surface of the limiting strip 6 is connected to the inner surface of the limiting groove 5. Surface movable connection; the opening and closing mechanism 3 includes an inner cavity 31, and the opening and closing mechanism 3 can also be arranged on the existing opening and closing drive device station of the ladder door 2. The inner cavity 31 is opened inside the ladder door 2, and the inner wall of the inner cavity 31 is provided with a through groove 32. The inner wall of the through groove 32 is movably connected to two arc plates 34 through a connecting component 33. The inner wall of the arc plate 34 is provided with an internal thread (not shown in the figure), and the outer surfaces of the arc plates 34 on both sides are fitted with each other. The outer surface of the arc plate 34 is threadedly connected with a screw 35, and the outer surface of the screw 35 is provided with a fixed bearing 36. The outer surface of the fixed bearing 36 is fixedly connected with a fixed plate 37, and the outer surface of the fixed plate 37 is fixedly connected to the inner wall of the sliding cavity 4, and the inner wall of the fixed bearing 36 is fixedly connected with a spring rod 38. The spring rod 38 is made of compression-resistant and fatigue-resistant materials, and preferably, a chamfer is provided on one side of the output end of the spring rod 38 (not shown in the figure), a card slot 39 is provided on the outer surface of the screw rod 35, and a fitting groove 310 is provided on the inner surface of the card slot 39. The fitting groove 310 is inclined, and the inclination angle is adapted to the chamfer angle of the output end of the spring rod 38, so that the output end of the spring rod 38 can be compressed to facilitate the card connection between the output end of the spring rod 38 and the card slot 39, the outer surface of the spring rod 38 is movably connected to the inner surface of the fitting groove 310, the outer surface of the spring rod 38 is carded with the inner surface of the card slot 39, and the inner cavity 31 is movably connected with a servo motor 311, the servo motor 311 is electrically connected to the control circuit of the elevator, and the servo motor 31 The output end of 1 is fixedly connected to one end of the screw rod 35 through a coupling, the outer surface of the servo motor 311 is fixedly connected to the mounting plate 312, and the two sides of the outer surface of the mounting plate 312 are movably connected to the slides 313, and the outer surfaces of the slides 313 on both sides are fixedly connected to the inner wall of the inner cavity 31. By setting the opening and closing mechanism 3, the servo motor 311 is used to drive the screw rod 35 to rotate forward and reverse, and the screw rod 35 is threadedly connected to the arc plates 34 on both sides, so as to control the opening and closing of the ladder doors 2 on both sides, and by controlling the two arc plates 34 to break away from the contact with the screw rod 35, the ladder door 2 can be in an independent active state, so that the ladder door 2 is not controlled by external force, avoiding the problem of passengers being pinched due to untimely induction and the ladder door 2 being locked and difficult to open during the rescue process.

[0035] Embodiment 2:

[0036] Based on the first embodiment, refer to the attached specification Figure 2 , Attachment Figure 6 The connecting component 33 includes a circular sleeve 331 and a clamping groove 332. The circular sleeve 331 plays a connecting and supporting role. The circular sleeve 331 is sleeved on the outside of the arc plate 34. The inner surface of the circular sleeve 331 is fixedly connected to the inner surface of the through groove 32. The clamping groove 332 is arranged on the outer surface of the arc plate 34. The inner wall of the circular sleeve 331 is fixedly connected with a hydraulic rod 333. The hydraulic rod 333 is connected to the external control oil cylinder and can also be replaced with an automatic telescopic part such as an electric push rod. The output end of the hydraulic rod 333 is fixedly connected with a clamping plate 334. The clamping plate 334 is made of a material that is resistant to pressure, wear-resistant and has a large friction coefficient. The arc plate 34 can be fixed by clamping and using friction. The outer surface of the clamping plate 334 is movably connected to the inner surface of the clamping groove 332. The inner wall of the circular sleeve 331 is fixedly connected with a limited bearing 335. The limited bearing 335 is provided with a retracting unit 3 36. The inner wall of the limit bearing 335 is fixedly connected with a telescopic rod 337. The telescopic rod 337 plays a limiting and guiding role. The output end of the telescopic rod 337 is connected to the outer surface of the arc plate 34 through the retracting unit 336. By setting the connecting component 33, the limit bearing 335 and the telescopic rod 337, the arc plate 34 can be limited, and the connection between the arc plate 34 and the screw 35 can be controlled. At the same time, the hydraulic rod 333 clamps and fixes the arc plate 34 through the connection between the clamping plate 334 and the clamping groove 332, so that the circular sleeve 331, the arc plate 34 and the ladder door 2 are formed into one body, and then the opening and closing of the ladder door 2 can be controlled by the drive of the servo motor 311. After being separated from the clamping of the clamping plate 334, the arc plate 34 can only rotate with the screw 35 and cannot drive the ladder door 2 to open and close, thereby avoiding the problem of pinching and the difficulty of opening the ladder door 2 due to elevator failure.

[0037] Embodiment three:

[0038] Based on the second embodiment, refer to the attached specification Figure 6 , Attachment Figure 7The folding unit 336 includes a groove 3361 and a permanent magnet 3362. The outer surface of the permanent magnet 3362 is fixedly connected to the output end of the telescopic rod 337. The outer surface of the permanent magnet 3362 is fixedly connected to the outer surface of the arc plate 34. The permanent magnet 3362 is fixed to the arc plate 34 through an easily detachable connector, so as to facilitate the disassembly and replacement of the arc plate 34 after it is worn out. The groove 3361 is provided on the outer surface of the limit bearing 335. The inner surface of the groove 3361 is fixedly connected with an insulating ring 3363. The insulating ring 3363 plays a role of fixing and insulating. A toroidal coil 3364 is arranged inside the insulating ring 3363. The toroidal coil 3364 is connected to the elevator. The control circuit is electrically connected, and the annular coil 3364 is energized to generate a magnetic field. The annular coil 3364 interacts with the permanent magnet 3362 through the magnetic force of the magnetic field. By setting the retracting unit 336, the annular coil 3364 is energized to generate a magnetic field, and the inner circle magnetic poles are the same. Its magnetic poles can be changed by controlling the direction of the current. Since the permanent magnet 3362 is fixed, its magnetic field poles are fixed. Therefore, through magnetic repulsion and attraction, and changing the inner circle magnetic poles of the annular coil 3364, the connection between the arc plate 34 and the screw 35 can be controlled, so that when the elevator fails and rescue is convenient, the elevator door 2 can be quickly opened, and it is also convenient to replace the screw 35, so as to facilitate the long-term use of the device.

[0039] Embodiment 4:

[0040] Based on the third embodiment, refer to the attached manual Figure 4The screw rod 35 includes two short rods 351, and the two short rods 351 are made of threaded rods with the same pitch thread size. One end of the two short rods 351 fits each other. The outer surfaces of the two short rods 351 are provided with connecting grooves 352. The inner surface of the connecting groove 352 is movably connected with a connecting bar 353. The connecting bar 353 plays a role of splicing and fixing, and its thickness is less than the depth of the connecting groove 352. Both sides of the connecting bar 353 are threadedly connected with screws 354. The end of the screw 354 is inside the connecting groove 352 to avoid affecting the screw rod 35 and the arc plate The outer surfaces of the screws 354 on both sides are respectively connected with the inner through-threads of the two short rods 351. An inner groove 355 is provided inside the short rod 351 on one side. The inner surface of the inner groove 355 is movably connected with the inner surface of the slot 39. An airbag 356 is fixedly connected to the inner wall of the inner groove 355. The airbag 356 is filled with non-toxic and harmless gas. The outer surface of the airbag 356 is movably connected with the inner surface of the slot 39. The outer surface of the airbag 356 is movably connected with the output end of the spring rod 38. The outer surface of the airbag 356 is fixedly connected to the inner surface of the slot 39. A push plate 357 is fixedly connected, and the outer surface of the push plate 357 is slidably connected to the inner surface of the inner groove 355. A screw 358 is fixedly connected to the outer surface of the push plate 357. The outer surface of the screw 358 is movably connected to the inner surface of the inner groove 355. The inner surface of the screw 358 is threadedly connected to a screw rod 359. The screw rod 359 is made of a wear-resistant and pressure-resistant material. The outer surface of the screw rod 359 is rotatably connected to the inner surface of the inner groove 355. The outer surface of the screw rod 359 is rotatably connected to the inside of the short rod 351 on one side. One side of the screw rod 359 The end is fixedly connected with one end of the short rod 351 on the other side. By setting structures such as the screw rod 35 and utilizing the functions of the connecting groove 352 and the connecting bar 353, the two short rods 351 can be assembled into one, so that the ladder door 2 can be controlled to open and close. At the same time, after disassembly, the short rod 351 on one side is rotated to drive the screw rod 359 to rotate, so that the screw tube 358 squeezes the air bag 356 through the push plate 357, so that the air bag 356 pushes the output end of the spring rod 38 outward from the inside of the card slot 39, thereby facilitating the replacement of the screw rod 35 after it is worn out.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] When working:

[0043] The ladder door 2 opens and closes normally: the servo motor 311 drives the screw rod 35 to rotate through the coupling, and the arc plates 34 on both sides are threadedly connected to the screw rod 35. The arc plates 34 are fixed by friction due to the contact between the clamping plates 334 and the clamping grooves 332, and are fixed to the ladder door 2 as a whole through the hydraulic rod 333 and the round sleeve 331. Since the ladder door 2 is limited by the connection between the limit strip 6 and the limit groove 5, the ladder door 2 reciprocates along the screw rod 35 in the sliding cavity 4 and the doorway to realize the opening and closing of the ladder door 2. At the same time, the servo motor 311 moves and adjusts the relative position inside the inner cavity 31 through the limit of the mounting plate 312 and the slide 313 to adapt to the opening and closing of the ladder door 2.

[0044] Abnormal opening and closing of the elevator door 2: First, at the end of the closing stroke of the elevator door 2, when the sensing device of the elevator door 2 senses a human body or cargo, it feeds back the sensing signal to the elevator control system, and then the control system controls the output end of the hydraulic rod 333 to retract, thereby driving the clamping plate 334 to move and disengage from the contact with the clamping groove 332. After the arc plates 34 on both sides are disengaged from the clamping, they are disconnected from the fixed connection with the circular sleeve 331 and the elevator door 2. Even if the servo motor 311 drives the screw 35 to rotate, the arc plate 34 will also drive the permanent magnet 3362 and the telescopic rod 337 to rotate radially inside the limit bearing 335, and will not drive the elevator door 2 to move. After the elevator door 2 stops moving This avoids the possibility of injury to passengers or cargo, and also avoids the possibility of system failure caused by the closing pressure of the ladder door 2. During the rescue process, the current direction of the ring coil 3364 is changed by the control circuit, so that the magnetic pole inside the ring coil 3364 is different from the magnetic pole outside the permanent magnet 3362. By using the attraction between the magnetic poles, the permanent magnet 3362 drives the arc plate 34 to move along the contraction direction of the output end of the telescopic rod 337, so that the arc plate 34 is disconnected from the screw rod 35, and then the screw rod 35 and the ladder door 2 are two independent individuals. The screw rod 35 will not restrict the movement of the ladder door 2, and the ladder door 2 can be opened and closed by directly pushing it.

[0045] Loading and unloading of screw rod 35: When screw rod 35 is not in contact with arc plate 34, screw rod 35 is placed into inner cavity 31 through maintenance channel, and one end of screw rod 35 is inserted into round sleeve 331, and then inserted into the inner side of fixed bearing 36, and the output end of spring rod 38 is compressed by connecting with the chamfer of fitting groove 310 and spring rod 38, and when the slot 39 on screw rod 35 moves to align with spring rod 38, the output end of spring rod 38 rebounds into the slot 39 by elastic force, so that screw rod 35 is axially limited by snap connection, and then servo motor 311 is slid to make its output end close to the other end of screw 35, and the two are connected by coupling. When disassembling, remove the coupling and slide the servo motor 311 away from the screw rod 35, then unscrew the screw 354 and remove the connecting rod 353, then rotate the short rod 351 on one side, and connect the screw rod 359 with the screw tube 358 through the threaded connection, so that the screw tube 358 drives the push plate 357 to slide inside the inner groove 355 and compresses the airbag 356, thereby increasing the internal pressure of the airbag 356 and causing a part close to the slot 39 to expand, thereby entering the slot 39 and pushing the output end of the spring rod 38 out of the slot 39, so that the screw rod 35 is disengaged from the limit, and then the screw 35 is taken out, and the above installation steps are repeated to complete the replacement.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator door structure for a vertical elevator, comprising a car (1), characterized in that: The car (1) is provided with a doorway, and both sides of the inner wall of the doorway are movably connected with a stair door (2), and the stair door (2) is provided with an opening and closing mechanism (3). Both sides of the interior of the car (1) are provided with a through sliding cavity (4), and the outer surface of the stair door (2) is movably connected to the inner surface of the sliding cavity (4), and the inner wall of the sliding cavity (4) is provided with a limiting groove (5), and the outer surface of the stair door (2) is fixedly connected to a limiting strip (6), and the outer surface of the limiting strip (6) is movably connected to the inner surface of the limiting groove (5); The opening and closing mechanism (3) comprises an inner cavity (31), wherein the inner cavity (31) is provided inside the ladder door (2), and an inner wall of the inner cavity (31) is provided with a through slot (32), and the inner wall of the through slot (32) is movably connected to two arc plates (34) via a connecting assembly (33), and the outer surfaces of the arc plates (34) on both sides are in contact with each other, and the outer surfaces of the arc plates (34) are threadedly connected to a screw rod (35), and the outer surface of the screw rod (35) is provided with a fixed bearing (36), and the outer surface of the fixed bearing (36) is penetrated and fixedly connected to a fixed plate (37), and the outer surface of the fixed plate (37) is fixedly connected to the inner wall of the sliding cavity (4), and the inner wall of the fixed bearing (36) is fixedly connected to a spring rod (38), and the screw ( The outer surface of the spring rod (38) is provided with a card slot (39), the inner surface of the card slot (39) is provided with a fitting slot (310), the outer surface of the spring rod (38) is movably connected to the inner surface of the fitting slot (310), the outer surface of the spring rod (38) is engaged with the inner surface of the card slot (39), the inner cavity (31) is movably connected with a servo motor (311), the output end of the servo motor (311) is fixedly connected to one end of the screw rod (35) via a coupling, the outer surface of the servo motor (311) is fixedly connected to a mounting plate (312), both sides of the outer surface of the mounting plate (312) are movably connected to slides (313), and the outer surfaces of the slides (313) on both sides are fixedly connected to the inner wall of the inner cavity (31); The connecting assembly (33) comprises a circular sleeve (331) and a clamping groove (332); the circular sleeve (331) is sleeved on the outside of the arc plate (34); the inner surface of the circular sleeve (331) is fixedly connected to the inner surface of the through groove (32); the clamping groove (332) is provided on the outer surface of the arc plate (34); the inner wall of the circular sleeve (331) is fixedly connected to a hydraulic rod (333); the output end of the hydraulic rod (333) is fixedly connected to a clamping plate (334); the outer surface of the clamping plate (334) is movably connected to the inner surface of the clamping groove (332); the inner wall of the circular sleeve (331) is fixedly connected to a limit bearing (335); a retracting unit (336) is provided on the limit bearing (335); the inner wall of the limit bearing (335) is fixedly connected to a telescopic rod (337); the output end of the telescopic rod (337) is connected to the outer surface of the arc plate (34) via the retracting unit (336); The folding unit (336) comprises an embedding groove (3361) and a permanent magnet (3362); the outer surface of the permanent magnet (3362) is fixedly connected to the output end of the telescopic rod (337); the outer surface of the permanent magnet (3362) is fixedly connected to the outer surface of the arc plate (34); the embedding groove (3361) is provided on the outer surface of the limit bearing (335); an insulating ring (3363) is fixedly connected to the inner surface of the embedding groove (3361); a ring coil (3364) is arranged inside the insulating ring (3363); the ring coil (3364) generates a magnetic field when energized; the ring coil (3364) interacts with the permanent magnet (3362) through the magnetic force of the magnetic field.

2. The elevator door structure for a vertical elevator according to claim 1, characterized in that: The screw rod (35) comprises two short rods (351), one end of the two short rods (351) is fitted with each other, the outer surfaces of the two short rods (351) are provided with connecting grooves (352), the inner surfaces of the connecting grooves (352) are movably connected with connecting strips (353), both sides of the connecting strips (353) are threadedly connected with screws (354), the outer surfaces of the screws (354) on both sides are respectively threadedly connected with the inner surfaces of the two short rods (351), an inner groove (355) is provided inside the short rod (351) on one side, the inner surface of the inner groove (355) is movably connected with the inner surface of the slot (39), the inner wall of the inner groove (355) is fixedly connected with an air bag (356), the outer surface of the air bag (356) is movably connected with the inner surface of the slot (39), and the outer surface of the air bag (356) is movably connected with the inner surface of the slot (39). The outer surface of the airbag (356) is movably connected to the output end of the spring rod (38), the outer surface of the airbag (356) is fixedly connected to a push plate (357), the outer surface of the push plate (357) is slidably connected to the inner surface of the inner groove (355), the outer surface of the push plate (357) is fixedly connected to a screw tube (358), the outer surface of the screw tube (358) is movably connected to the inner surface of the inner groove (355), the inner surface of the screw tube (358) is threadedly connected to a screw rod (359), the outer surface of the screw rod (359) is rotatably connected to the inner surface of the inner groove (355), the outer surface of the screw rod (359) is rotatably connected to the inside of a short rod (351) on one side, and one end of the screw rod (359) is fixedly connected to one end of a short rod (351) on the other side.

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