A backpack-style six-fold door elevator

Abstract

The present invention provides a backpack - type six - fold door elevator, including guide rails and a car that cooperates with the guide rails, as well as several layer door devices; any layer door device includes: a door frame, with a first horizontal slide rail provided on the inner side wall; a pair of sliding plates symmetrically arranged on both sides of the center of the door frame, respectively cooperating with the first horizontal slide rail, and a guide post is provided at the top of any sliding plate; a door panel assembly, including a pair of first door panels, a pair of second door panels and a pair of third door panels, and the tops of the pair of first door panels are respectively connected to the pair of sliding plates; a driving assembly, including a driving member provided above the door frame and a pair of transmission rods located above the first horizontal slide rail, and the driving member is respectively connected to the ends of the pair of transmission rods. Transmission grooves that cooperate with the guide posts are provided on the surfaces of the pair of transmission rods. The transmission structure in this application provides a stable movement trajectory and support for the opening and closing of the door panel assembly, ensuring the smooth operation of the elevator layer door during the opening and closing processes.

Description

Technical Field

[0001] The invention relates to the technical field of elevator equipment, and in particular to a backpack type six-fold door elevator. Background Art

[0002] With the advancement of technology, villa elevators, home elevators and other elevators suitable for limited space building environments have gradually become popular. Among them, backpack elevators are a new type of elevators. Its main feature is that the elevator car guide rails are arranged on one side of the shaft, so that the car and the guide rails form a "backpack" shape. This design makes the elevator more flexible and space-efficient during installation and use.

[0003] Generally speaking, the main methods of opening the landing doors of backpack elevators include center-split doors, side-opening doors, hand-pull doors, multi-folding doors, etc. Different methods of opening doors have different characteristics. Among them, center-split doors and side-opening doors are common methods of opening doors. They are easy to operate, beautiful, and have a low failure rate, but they have high requirements for the width of the shaft. For scenes with small spaces such as villas or small houses, the width of the elevator shaft is usually very limited. Therefore, existing home elevators or villa elevators often use multi-fold door structures (such as two-fold doors, four-fold doors, etc.) to adapt to the requirements of small shaft widths.

[0004] Commonly, multi-fold door structures generally use chains, belts or connecting rods to drive multiple door panels. These transmission structures will more or less have problems such as asynchronous transmission, easy wear, and high noise. For example, some multi-fold door structures use a single-side drive device to drive the door panels to fold, resulting in uneven force on the door panels, which are prone to deformation or jamming after long-term use; in addition, the movement of the door panels in the multi-fold door structure is mostly achieved by the combination of sliders and slide grooves. This type of sliding structure has high friction resistance and requires frequent lubrication and maintenance. In addition, the door panels are prone to vibration when starting and stopping, which affects the service life of the equipment.

[0005] In view of this, how to provide an elevator that is suitable for small shaft widths and ensures that elevator door openings and closings can be fast, stable and safe, and maintains good performance under long-term and frequent use has become an urgent problem to be solved. Summary of the invention

[0006] Aiming at the problems in the prior art of home elevators or villa elevator floor doors, the multi-fold door structure has asynchronous transmission, easy wear, loud noise, and large friction during the relative sliding process between door panels, requiring frequent maintenance, the present invention provides a backpack-type six-fold door elevator to improve the above problems.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: The present invention provides a backpack - type six - fold - door elevator, including guide rails and a car that cooperates with the guide rails, as well as a plurality of layer - door devices arranged along the extension direction of the guide rails, and the car can correspond to different layer - door devices respectively during the linear movement along the guide rails; moreover, any layer - door device includes: a door frame with a first horizontal slide rail provided on the inner side wall; a pair of sliding plates symmetrically arranged on both sides of the center of the door frame, which respectively cooperate with the first horizontal slide rail, and a guide post is provided at the top of any sliding plate; a door - panel assembly, including a pair of first door panels, a pair of second door panels, and a pair of third door panels, and the tops of the pair of first door panels are respectively connected to the pair of sliding plates, and the sides between the first door panel, the second door panel, and the third door panel on the same side are connected to each other; a driving assembly, including a driving member provided above the door frame and a pair of transmission rods located above the first horizontal slide rail, and the driving member is respectively connected to the ends of the pair of transmission rods, and transmission grooves that cooperate with the guide posts are provided on the surfaces of the pair of transmission rods; wherein, the pair of transmission rods can rotate in response to the drive of the driving member, so that the guide posts can move in the transmission grooves, thereby driving the pair of sliding plates to approach or move away from each other, and realizing the opening and closing of the pair of first door panels, the pair of second door panels, and the pair of third door panels.

[0008] In some embodiments, the axis of the transmission rod is parallel to the extension direction of the door frame, and the axis of the driving member is perpendicular to the axis of the transmission rod; moreover, a driving bevel gear is provided at the end of the driving shaft of the driving member, and a transmission bevel gear that cooperates with the driving bevel gear is provided at the end of the transmission rod.

[0009] In some embodiments, the driving assembly further includes shaft seats respectively located at both ends of any transmission rod; any transmission rod includes an outer cylinder and a transmission shaft that penetrates and extends to both ends of the outer cylinder, and the transmission groove on the surface of the outer cylinder is a spiral groove formed around the axis of the transmission rod, and the transmission shaft cooperates with the shaft seat and can rotate relative to the shaft seat.

[0010] In some embodiments, the spiral grooves of the transmission rods on one side and the spiral grooves of the transmission rods on the other side have opposite helix directions.

[0011] In some embodiments, the guide post includes a column body connected to the sliding plate, an upper sliding disk and a lower sliding disk spaced apart on the column body, and a plurality of ball bearings respectively provided on the upper sliding disk and the lower sliding disk, and during the movement of the guide post, the plurality of ball bearings can respectively contact the inner wall and the outer wall of the transmission groove.

[0012] In some embodiments, the first door panel, the second door panel, and the third door panel on the same side are stacked, and chutes are provided on the backs of the first door panel and the second door panel, and sliding units are provided on the sides of the second door panel and the third door panel, and the sliding units cooperate with the chutes to realize the sliding connection between the first door panel, the second door panel, and the third door panel.

[0013] In some embodiments, the sliding unit includes fixed seats respectively arranged on the side walls of the second door panel and the third door panel, and a first sliding roller and a second sliding roller respectively rotatably connected to the fixed seats. Both the first sliding roller and the second sliding roller are located in the sliding groove, and the axis of the first sliding roller is perpendicular to the axis of the second sliding roller.

[0014] In some embodiments, buffer pads are respectively arranged at both ends of the sliding groove. During the movement of the sliding unit along the sliding groove, the first sliding roller and the second sliding roller can respectively contact the buffer pads.

[0015] In some embodiments, a plurality of damping bands are arranged on both sides of the inner wall of the sliding groove close to the buffer pads. During the movement of the sliding unit along the sliding groove, the first sliding roller and the second sliding roller can respectively contact the plurality of damping bands.

[0016] In some embodiments, a second horizontal sliding rail and a third horizontal sliding rail are further arranged in parallel at the bottom of the door frame. Upper sliding blocks are arranged at the tops of a pair of second door panels and a pair of third door panels, and the upper sliding blocks are respectively matched with the second horizontal sliding rail and the third horizontal sliding rail; any one of the landing door devices further includes a sill located below the door panel assembly. Three track grooves are arranged in parallel on the sill. Lower sliding blocks are arranged at the bottoms of a pair of first door panels, a pair of second door panels and a pair of third door panels, and the lower sliding blocks are respectively matched with the three track grooves.

[0017] Due to the adoption of the above technical solutions, the technical effects achieved by the present invention are as follows: The backpack - type six - fold door elevator provided by the present invention, firstly, configures the door panel assembly as a folding structure of multiple door panels, so that the elevator landing door device can realize the folding and storage of multiple door panels during the opening and closing process, with a small occupied space and improved utilization efficiency of the building space, especially suitable for building environments with a small hoistway width; secondly, the transmission structure in the landing door device is realized by the cooperation of the transmission rod and the guide post. Specifically, through the movement of the guide post in the transmission groove, the opening and closing of the first door panel, the second door panel and the third door panel are driven when the sliding plate moves along the first horizontal sliding rail. Compared with the existing transmission methods such as chains, belts or linkages, the transmission structure in the present application provides a stable movement track and support for the opening and closing of the door panel assembly, ensures the smooth operation of the elevator landing door during the opening and closing process, reduces the situation of door panel shaking or jamming, and improves the reliability and service life of the elevator door system. In addition, the design of multiple door panels can better fit when closed. Compared with traditional elevator landing doors, it has better sealing performance, helps to improve the heat preservation performance and sound insulation effect of the elevator car, and can better prevent the entry of harmful gases such as smoke in case of emergency (such as fire), enhancing the safety of the elevator equipment.

[0018] The above description is only an overview of the technical solution of the embodiments of the present invention. In order to be able to understand the technical means of the embodiments of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following specifically gives the specific embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0020] Figure 1 Structural schematic diagram of a backpack-type six-fold door elevator provided by the present invention;

[0021] Figure 2 Structural schematic diagram of a landing door device provided by the present invention;

[0022] Figure 3 Structural schematic diagram of another landing door device provided by the present invention;

[0023] Figure 4 Structural schematic diagram of a door frame provided by the present invention;

[0024] Figure 5 Structural schematic diagram of a drive assembly provided by the present invention;

[0025] Figure 6 Structural schematic diagram of a transmission rod provided by the present invention;

[0026] Figure 7 Structural schematic diagram of a guide post provided by the present invention;

[0027] Figure 8 Structural schematic diagram of a first door panel provided by the present invention;

[0028] Figure 9 Provided by the present invention Figure 8 Enlarged schematic diagram of part A;

[0029] Figure 10 Structural schematic diagram of a second door panel provided by the present invention;

[0030] Figure 11 Provided by the present invention Figure 10 Enlarged schematic diagram of part B;

[0031] Figure 12 Structural schematic diagram of another door frame provided by the present invention;

[0032] Figure 13 is a schematic structural diagram of a door panel assembly provided by the present invention;

[0033] Figure 14 is a schematic structural diagram of another door panel assembly provided by the present invention;

[0034] Figure 15 is provided by the present invention Figure 14 an enlarged schematic diagram of part C in

[0035] Main reference numeral description: 100 guide rail; 200 car; 300 landing door device, 310 door frame, 311 first horizontal slide rail, 312 second horizontal slide rail, 313 third horizontal slide rail, 314 sill, 3141 track groove, 320 slide plate, 321 guide post, 3211 column body, 3212 upper slide plate, 3213 lower slide plate, 3214 ball, 330 door panel assembly, 331 first door panel, 332 second door panel, 333 third door panel, 340 drive assembly, 341 drive member, 3411 drive bevel gear, 342 transmission rod, 3421 transmission groove, 3422 transmission bevel gear, 3423 outer cylinder, 3424 transmission shaft, 343 shaft seat, 344 chute, 3441 buffer pad, 3442 damping belt, 335 sliding unit, 3351 fixed seat, 3352 first roller, 3353 second roller, 336 upper slider, 337 lower slider. Detailed implementation manners

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0037] Referring to Figures 1-6 as shown, the embodiment of the present invention provides a backpack - type six - fold door elevator, including a guide rail 100 and a car 200 that cooperates with the guide rail 100, and a plurality of landing door devices 300 arranged along the extending direction of the guide rail 100, and the car 200 can correspond to different landing door devices 300 respectively during the linear movement along the guide rail 100.

[0038] Specifically, any layer door device 300 includes a door frame 310, a pair of sliding plates 320, a door panel assembly 330, and a driving assembly 340. Among them, a first horizontal slide rail 311 is provided on the inner side wall of the door frame 310; a pair of sliding plates 320 are symmetrically arranged on both sides of the center of the door frame 310, and the pair of sliding plates 320 are respectively matched with the first horizontal slide rail 311, and a guiding column 321 is provided at the top of any sliding plate 320; the door panel assembly 330 includes a pair of first door panels 331, a pair of second door panels 332, and a pair of third door panels 333, and the tops of the pair of first door panels 331 are respectively connected to the pair of sliding plates 320, and the sides between the first door panel 331, the second door panel 332, and the third door panel 333 on the same side are connected to each other; the driving assembly 340 includes a driving member 341 provided above the door frame 310 and a pair of transmission rods 342 located above the first horizontal slide rail 311, and the driving member 341 is respectively connected to the ends of the pair of transmission rods 342, and transmission grooves 3421 matched with the guiding column 321 are formed on the surfaces of the pair of transmission rods 342. Moreover, the pair of transmission rods 342 can rotate in response to the drive of the driving member 341, so that the guiding column 321 can move in the transmission groove 3421, thereby driving the pair of sliding plates 320 to approach or separate from each other, and realizing the opening and closing of the pair of first door panels 331, the pair of second door panels 332, and the pair of third door panels 333.

[0039] It should be noted that the backpack - type six - fold door elevator provided in this application is mainly applied to scenarios with relatively limited space such as small - sized residences, ground - floor residences, and villas. Since the hoistways in such scenarios are usually restricted by the complex structure and limited size inside the building, the hoistway size is usually small. If the bilateral connection method similar to that in existing common commercial elevators is adopted between the car and the guide rails, it is obviously not applicable to such small - sized hoistway scenarios. Therefore, for the elevator provided in this application, by adopting a backpack - type structure, the car and the guide rails are connected unilaterally to further optimize the space configuration of the equipment in small - hoistway scenarios. Moreover, compared with traditional commercial elevators, this backpack - type structure elevator has a simpler overall structure because the connection components between one side of the car and the guide rails are cancelled, and it can also reduce the production, installation, and maintenance costs of the equipment to a certain extent.

[0040] In addition, the backpack - type six - fold door elevator provided in this application can be applied to buildings with different floors. Correspondingly, there can be multiple layer door devices 300, and this application does not limit the number of layer door devices 300. Specifically, in the layer door device 300, the specific set dimensions of each component such as the door frame 310, the sliding plate 320, the door panel assembly 330, and the driving assembly 340 can be reasonably configured according to the actual construction scenario, and this application does not limit this either; in addition, the driving member 341 can be a driving motor, a hydraulic pump, a pneumatic pump, etc., and this application does not limit the type of the driving member 341.

[0041] The backpack - type six - fold door elevator provided by the present invention first configures the door panel assembly 330 as a folding structure of multiple door panels, so that the elevator landing door device 300 can realize the folding and storage of multiple door panels during the opening and closing process, occupying less space and improving the utilization efficiency of building space, especially suitable for building environments with a relatively small hoistway width. Secondly, the transmission structure in the landing door device 300 is realized by the cooperation of the transmission rod 342 and the guide column 321. Specifically, through the movement of the guide column 321 in the transmission groove 3421, the sliding plate 320 drives the opening and closing of the first door panel 331, the second door panel 332 and the third door panel 333 during the movement along the first horizontal slide rail 311. Compared with the existing transmission methods such as chains, belts or connecting rods, the transmission structure in the present application provides a stable movement track and support for the opening and closing of the door panel assembly 330, ensuring the smooth operation of the elevator landing door during the opening and closing process, reducing the situation of door panel shaking or jamming, and improving the reliability and service life of the elevator door system. In addition, the design of multiple door panels can better fit when closed. Compared with traditional elevator landing doors, it has better sealing performance, which helps to improve the heat preservation performance and sound insulation effect of the elevator car 200. At the same time, in case of emergency (such as fire), it can better prevent the entry of harmful gases such as smoke, enhancing the safety of elevator equipment.

[0042] In some embodiments, referring to Figures 4-6 As shown, the axis of the transmission rod 342 is parallel to the extension direction of the door frame 310, and the axis of the driving member 341 is perpendicular to the axis of the transmission rod 342; moreover, a driving bevel gear 3411 is provided at the end of the driving shaft of the driving member 341, and a transmission bevel gear 3422 that cooperates with the driving bevel gear 3411 is provided at the end of the transmission rod 342.

[0043] This perpendicular cross - axis layout of the axis of the transmission rod 342 and the axis of the driving member 341 makes the structure of the driving assembly 340 more compact, enabling efficient transmission of the door panel assembly 330 within a limited space, saving the installation space inside the elevator door system, and being conducive to the miniaturization and lightweight of the overall design. And the cooperation of the driving bevel gear 3411 and the transmission bevel gear 3422 can smoothly and accurately transmit the power of the driving member 341 to the transmission rod 342, ensuring that the rotation of the transmission rod 342 is synchronous and stable with the drive of the driving member 341, improving the accuracy and reliability of the opening and closing actions of the door panel assembly 330, and reducing the loss and error during the power transmission process.

[0044] In addition, compared with some other transmission methods, bevel gear transmission can generate less noise during operation, making the door panel assembly 330 quieter when opening and closing, providing a more comfortable riding environment for passengers, and being beneficial to the user experience. Moreover, the meshing structure of the bevel gear can withstand bidirectional torque, which can to a certain extent avoid gear slippage or wear caused by inertial impact when the door panel assembly 330 starts and stops, and is beneficial to further improving the stability of the equipment transmission structure.

[0045] In some embodiments, with continued reference to Figure 5 and Figure 6 as shown, the drive assembly 340 further includes shaft seats 343 respectively located at both ends of any one transmission rod 342; any one transmission rod 342 includes an outer cylinder 3423 and a transmission shaft 3424 that penetrates and extends to both ends of the outer cylinder 3423. The transmission groove 3421 on the surface of the outer cylinder 3423 is a spiral groove opened around the axis of the transmission rod 342. The transmission shaft 3424 cooperates with the shaft seat 343 and can rotate relative to the shaft seat 343.

[0046] On the one hand, the setting of the shaft seat 343 provides stable support for the transmission rod 342, ensuring that the transmission rod 342 will not shift or shake during rotation, so as to improve the stability of the contact between the spiral groove and the guide post 321, as well as the movement stability of the transmission rod 342, and can reduce vibration and noise during transmission, thus ensuring the smoothness of the opening and closing actions of the entire door panel assembly 330; on the other hand, the design of the transmission groove 3421 in the shape of a spiral groove enables the guide post 321 to generate a smoother and continuous movement trajectory when moving in the transmission groove 3421. Compared with other forms of transmission grooves 3421 such as straight grooves, it can better adapt to the folding and unfolding actions of the door panel assembly 330, reduce impact and wear during movement, and extend the service life of the components; on the third hand, the transmission rod 342 is composed of an outer cylinder 3423 and a transmission shaft 3424 penetrating through it. This structure enhances the overall strength and rigidity of the transmission rod 342, enabling it to withstand greater loads and torques, improving the stability and reliability of the elevator door system during long-term operation, and reducing the risk of failures caused by component damage.

[0047] In some embodiments, the spiral directions of the spiral grooves of the transmission rods 342 on one side are opposite to those of the spiral grooves of the transmission rods 342 on the other side.

[0048] The spiral grooves with opposite rotation directions enable the slide plates 320 on both sides to achieve symmetrical movement of approaching or moving away from each other when the transmission rod 342 rotates, thereby driving the first door panel 331, the second door panel 332 and the third door panel 333 to perform symmetrical opening and closing movements. This symmetrical movement mode can ensure that the door panel assembly 330 is subjected to uniform force during the opening and closing process, avoiding deformation or damage of the door panel due to uneven force, and can also avoid misalignment or jamming of the door panel assembly 330 due to travel differences, thereby improving the service life and reliability of the door panel assembly 330. In addition, the symmetrical movement mechanism makes the entire elevator door system more stable during operation, reduces shaking or vibration caused by uncoordinated movement of the door panel assembly 330, further improves the overall performance and stability of the elevator door system, and provides passengers with a safer and more comfortable riding environment.

[0049] In some embodiments, reference Figure 7 As shown, the guide column 321 includes a column 3211 connected to the slide plate 320, an upper sliding plate 3212 and a lower sliding plate 3213 spaced apart from each other on the column 3211, and a plurality of balls 3214 respectively arranged on the upper sliding plate 3212 and the lower sliding plate 3213, and during the movement of the guide column 321, the plurality of balls 3214 can respectively contact the inner wall and the outer wall of the transmission groove 3421.

[0050] On the one hand, the design of the ball 3214 converts the sliding friction between the guide column 321 and the transmission groove 3421 into rolling friction, which greatly reduces the friction resistance between the guide column 321 and the transmission groove 3421, so that the guide column 321 can move more smoothly in the transmission groove 3421, thereby improving the flexibility and efficiency of the elevator door opening and closing action and reducing energy consumption; on the other hand, the upper sliding plate 3212 and the lower sliding plate 3213 clamp the transmission groove 3421 through the ball 3214, which can limit the radial displacement of the guide column 321 relative to the transmission groove 3421 and prevent the guide column 321 from disengaging from the transmission groove 3421 when the door panel assembly 330 moves at high speed; on the other hand, the ball 3214 can also automatically adapt to the processing error or slight deformation of the transmission groove 3421, thereby reducing the motion interference caused by insufficient precision of the transmission mechanism.

[0051] In some embodiments, reference Figure 2 , Figures 8-11 As shown, the first door panel 331, the second door panel 332 and the third door panel 333 on the same side are stacked, and the backs of the first door panel 331 and the second door panel 332 are provided with a slide groove 344, and the sides of the second door panel 332 and the third door panel 333 are provided with a sliding unit 335, and the sliding unit 335 cooperates with the slide groove 344 to realize the sliding connection between the first door panel 331, the second door panel 332 and the third door panel 333.

[0052] First, the first door panel 331, the second door panel 332, and the third door panel 333 are stacked on top of each other. This stacked structure enables the door panel assembly 330 to fold tightly together when closed, further reducing the space occupied by the door panel assembly 330, improving the spatial compactness of the elevator landing door in the closed state, facilitating the coordinated cooperation between the elevator car 200 and the floor space, and particularly meeting the requirements of the building space better when the elevator shaft space is limited.

[0053] Secondly, the cooperation mode of the sliding unit 335 and the sliding groove 344 enables smooth relative movement between the door panels. During the opening and closing process of the door panel assembly 330, each door panel can fold and unfold in a predetermined order and trajectory, ensuring the coordination and reliability of the movement of the door panel assembly 330 and avoiding mutual interference or jamming between the door panels. In addition, the cooperation between the sliding unit 335 and the sliding groove 344 provides stable support and guidance for the movement between the door panels, enabling the door panels to maintain a relatively stable position and posture during the movement process, reducing the shaking and jitter of each door panel during the opening and closing process, improving the running smoothness and safety of the elevator door system, and providing a more comfortable entry and exit experience for passengers.

[0054] Furthermore, continuing to refer to Figure 11 As shown, the sliding unit 335 may include fixed seats 3351 respectively arranged on the side walls of the second door panel 332 and the third door panel 333, and a first sliding roller 3352 and a second sliding roller 3353 respectively rotatably connected to the fixed seats 3351. Both the first sliding roller 3352 and the second sliding roller 3353 are located in the sliding groove 344, and the axis of the first sliding roller 3352 is perpendicular to the axis of the second sliding roller 3353.

[0055] The axes of the first sliding roller 3352 and the second sliding roller 3353 located in the sliding groove 344 are perpendicular to each other. This design enables the sliding unit 335 to achieve flexible sliding in multiple directions in the sliding groove 344. The first sliding roller 3352 and the second sliding roller 3353 can move along different inner wall surfaces of the sliding groove 344 respectively, and the sliding unit 335 is allowed to simultaneously adapt to lateral and longitudinal displacements within the sliding groove 344, eliminating the movement interference during the folding of the door panel assembly 330, thus better adapting to the complex movement trajectory of the door panel assembly 330 during the opening and closing process and improving the sliding performance and movement flexibility between the door panels.

[0056] Moreover, the rolling contact between the sliding roller and the sliding groove 344 can further reduce the frictional resistance between the door panels, making the opening and closing actions of the door panel assembly 330 easier and smoother, reducing energy consumption; further, the sliding structure of the double sliding rollers can also disperse the local pressure of the sliding roller on the inner wall of the sliding groove 344, reducing the wear rate of the sliding groove 344 and extending the service life of the door panel assembly 330.

[0057] In some embodiments, referring to Figure 9 as shown, buffer pads 3441 are respectively arranged at both ends of the sliding groove 344. During the movement of the sliding unit 335 along the sliding groove 344, the first roller 3352 and the second roller 3353 can respectively contact the buffer pads 3441. Optionally, the material of the buffer pads 3441 can be rubber, silica gel, etc.

[0058] On the one hand, the buffer pads 3441 can play a buffering role when the door panel assembly 330 moves to the limit position, effectively reducing the impact force and noise generated by the collision between the door panels, protecting the door panel assembly 330 and related components from damage, and improving the service life and reliability of the elevator door system; on the other hand, as a physical limiting device, the buffer pads 3441 can also prevent derailment of the door panel or deformation of the sliding groove 344 caused by the overtravel of the sliding unit 335.

[0059] In some embodiments, continuing to refer to Figure 9 as shown, a plurality of damping belts 3442 are arranged on both sides of the inner wall of the sliding groove 344 close to the buffer pads 3441. During the movement of the sliding unit 335 along the sliding groove 344, the first roller 3352 and the second roller 3353 can respectively contact the plurality of damping belts 3442.

[0060] The plurality of damping belts 3442 arranged on both sides of the sliding groove 344 achieve a smooth and progressive start or deceleration of the movement of each door panel through the damping effect formed by the damping belts 3442, effectively reducing the shaking, jitter or noise of the door panel assembly 330 during the movement process, further improving the running stability of the elevator door system, ensuring that the door panel assembly 330 can maintain a stable state when opening and closing, and improving the overall performance of the elevator door system. In addition, the setting of the damping belts 3442 can also reduce the discomfort of passengers caused by the rapid movement of the door panel when entering and leaving the elevator, improving the use experience of passengers.

[0061] Preferably, three damping belts 3442 are respectively arranged on the inner top wall, inner bottom wall and rear side wall on one side of the sliding groove 344, and the material of the damping belts 3442 can be rubber, plastic, fiber, metal alloy, etc. Among them, the three damping belts 3442 can respectively contact the surfaces of the first roller 3352 and the second roller 3353 to further improve the damping effect.

[0062] In some embodiments, referring to Figures 12-15As shown, a second horizontal slide rail 312 and a third horizontal slide rail 313 are further provided in parallel at the bottom of the door frame 310. Upper sliders 336 are provided at the tops of a pair of second door panels 332 and a pair of third door panels 333. The upper sliders 336 are respectively engaged with the second horizontal slide rail 312 and the third horizontal slide rail 313. Any layer of door device 300 further includes a sill 314 located below the door panel assembly 330. Three track grooves 3141 are provided side by side in the sill 314. Lower sliders 337 are provided at the bottoms of a pair of first door panels 331, a pair of second door panels 332 and a pair of third door panels 333. The lower sliders 337 are respectively engaged with the three track grooves 3141.

[0063] The multi-track guiding design of the first horizontal slide rail 311, the second horizontal slide rail 312, the third horizontal slide rail 313 and the track grooves 3141 of the sill 314 guides the top and bottom of the door panel assembly 330 at the same time, restricts the shaking of the door panel in the vertical direction, can provide more stable support and guidance for the door panel assembly 330, ensures that the door panel assembly 330 can move smoothly along a predetermined track during the movement process, and reduces the shaking and jamming phenomena of the door panel assembly 330. Moreover, the multi-track guiding system can effectively disperse the force generated by the door panel assembly 330 during the movement process, avoids the wear or deformation of the track caused by excessive force on a single track, improves the service life and reliability of the track system, and further enhances the overall stability of the elevator door system.

[0064] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. / Any person familiar with the technical field of the present invention can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A backpack - type six - fold door elevator, characterized in that, Comprising a guide rail and a car cooperating with the guide rail, as well as a plurality of landing door devices arranged along the extending direction of the guide rail, and the car can correspond to different landing door devices respectively during the linear movement along the guide rail; And, any one of the landing door devices includes: A door frame, with a first horizontal slide rail provided on the inner side wall; A pair of sliding plates symmetrically arranged on both sides of the center of the door frame, respectively cooperating with the first horizontal slide rail, and a guide post is provided at the top end of any one of the sliding plates; A door panel assembly, including a pair of first door panels, a pair of second door panels and a pair of third door panels, and the top parts of the pair of first door panels are respectively connected to the pair of sliding plates, and the sides between the first door panel, the second door panel and the third door panel on the same side are connected to each other; A driving assembly, including a driving member provided above the door frame, a pair of transmission rods located above the first horizontal slide rail, and shaft seats respectively located at both ends of any one of the transmission rods, and the driving member is respectively connected to the ends of the pair of transmission rods. Transmission grooves cooperating with the guide posts are provided on the surfaces of the pair of transmission rods. The axis of the transmission rod is parallel to the extending direction of the door frame, and the axis of the driving member is perpendicular to the axis of the transmission rod. And, any one of the transmission rods includes an outer cylinder and a transmission shaft passing through and extending to both ends of the outer cylinder. The transmission groove on the surface of the outer cylinder is a spiral groove opened around the axis of the transmission rod. The transmission shaft cooperates with the shaft seat and can rotate relative to the shaft seat; Wherein, the pair of transmission rods can rotate in response to the drive of the driving member, so that the guide posts can move in the transmission grooves, thereby driving the pair of sliding plates to approach or move away from each other, and realizing the opening and closing of the pair of first door panels, the pair of second door panels and the pair of third door panels.

2. The backpack - type six - fold door elevator according to claim 1, characterized in that, A driving bevel gear is provided at the end of the driving shaft of the driving member, and a transmission bevel gear cooperating with the driving bevel gear is provided at the end of the transmission rod.

3. The backpack - type six - fold door elevator according to claim 1, wherein, The spiral directions of the spiral grooves of the transmission rods on one side are opposite to those of the spiral grooves of the transmission rods on the other side.

4. The backpack - type six - fold - door elevator according to claim 1, characterized in that, The guide post includes a column body connected to the sliding plate, an upper sliding disc and a lower sliding disc spaced apart on the column body, and a plurality of ball bearings respectively provided on the upper sliding disc and the lower sliding disc. During the movement of the guide post, the plurality of ball bearings can respectively contact the inner wall and the outer wall of the transmission groove.

5. The backpack - type six - fold - door elevator according to claim 1, wherein, The first door panels, the second door panels and the third door panels on the same side are stacked, and sliding grooves are provided on the backs of the first door panels and the second door panels, and sliding units are provided on the sides of the second door panels and the third door panels. The sliding units cooperate with the sliding grooves to realize the sliding connection between the first door panels, the second door panels and the third door panels.

6. The backpack - type six - fold door elevator according to claim 5, characterized in that, The sliding unit includes fixed seats respectively provided on the side walls of the second door panel and the third door panel, and a first sliding roller and a second sliding roller respectively rotatably connected between the fixed seats. The first sliding roller and the second sliding roller are both located in the sliding groove, and the axis of the first sliding roller is perpendicular to the axis of the second sliding roller.

7. The backpack - type six - fold door elevator according to claim 6, characterized in that, Buffer pads are respectively arranged at both ends of the sliding groove. During the movement of the sliding unit along the sliding groove, the first roller and the second roller can respectively contact the buffer pads.

8. The backpack - type six - fold door elevator according to claim 7, characterized in that, A plurality of damping belts are arranged on both sides of the inner wall of the sliding groove close to the buffer pads. During the movement of the sliding unit along the sliding groove, the first roller and the second roller can respectively contact the plurality of damping belts.

9. The backpack - type six - fold door elevator according to claim 1, characterized in that, A second horizontal slide rail and a third horizontal slide rail are arranged in parallel at the bottom of the door frame. Upper sliders are arranged at the tops of a pair of the second door panels and a pair of the third door panels, and the upper sliders are respectively matched with the second horizontal slide rail and the third horizontal slide rail; Any one of the landing door devices further includes a sill located below the door panel assembly. Three track grooves are arranged side by side on the sill. Lower sliders are arranged at the bottoms of a pair of the first door panels, a pair of the second door panels and a pair of the third door panels, and the lower sliders are respectively matched with the three track grooves.

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