Arc-shaped portal crane of commercial full-circle sightseeing elevator

Abstract

The invention discloses an arc-shaped door machine of a commercial full-circle sightseeing elevator, and belongs to the technical field of elevator equipment, the arc-shaped door machine comprises a car and two car doors, the two car doors slide around the car oppositely or oppositely, and the car comprises a car top, a car body and a car bottom; the car roof is provided with a driving mechanism used for driving the car door to operate in an arc shape and a guiding mechanism used for guiding movement of the car door. The circular elevator car door has the effects that the operation stability of the circular elevator car door is improved, and then the service life of the circular elevator car door is prolonged.

Description

Technical Field

[0001] This application relates to the field of elevator equipment technology, and in particular to an arc-shaped door operator for a commercial full-circle sightseeing elevator. Background Technology

[0002] Commercial circular sightseeing elevators, with their aesthetic appeal and high space utilization, have been widely used in high-end hotels, shopping malls, and scenic spots. These elevators provide passengers with a unique visual experience, enhance the overall grade and attractiveness of buildings, meet people's needs for high-quality travel and efficient space utilization, and drive the further development of the elevator industry in the commercial sector. They not only become a beautiful feature in commercial buildings but also, to a certain extent, promote the coordinated development of related industries, such as architectural design and interior decoration, creating a more comfortable and convenient environment for commercial spaces.

[0003] Currently, the market primarily uses belt drive or chain drive to control the opening and closing of elevator doors. Belt drive is characterized by its simple structure, low cost, and relatively easy installation and maintenance, and can achieve the basic opening and closing functions of elevator doors to a certain extent. Chain drive, on the other hand, has higher transmission power and efficiency, making it suitable for applications with high load requirements. These two drive methods are the most common technologies in the industry.

[0004] However, for commercial fully circular arc-shaped elevator doors, belt drive and chain drive structures have significant drawbacks in controlling door opening and closing. Due to the large arc length of the doors in commercial fully circular sightseeing elevators, the doors must withstand the combined loads of lateral centrifugal force and vertical gravity during opening and closing. These drive structures are prone to problems such as door swaying, shifting, jamming, and misalignment. At the same time, the clamping drive structure experiences significant wear and noise, making it difficult to meet the high-frequency opening and closing requirements of elevator doors in commercial scenarios, and failing to guarantee the stable operation and long-term reliability of the car doors. Summary of the Invention

[0005] In order to improve the stability of the operation of circular elevator car doors and thus extend their service life, this application provides an arc-shaped door operator for a commercial fully circular sightseeing elevator.

[0006] The arc-shaped door operator of the commercial fully circular sightseeing elevator provided in this application adopts the following technical solution: A commercial fully circular sightseeing elevator has an arc-shaped door operator including a car and two car doors. The two car doors slide around the car, either facing each other or back to back. The car includes a car top, a car body, and a car bottom. The car top is provided with a drive mechanism for driving the car doors to move in an arc shape and a guide mechanism for guiding the movement of the car doors.

[0007] By adopting the above technical solutions, the guide mechanism can ensure that the car door moves precisely along the predetermined arc path, avoiding jamming, deviation or shaking. The drive mechanism controls the opening and closing of the car door. By centrally arranging the doors on the car top, vibration transmission to the car interior can be reduced, improving passenger comfort.

[0008] Preferably, a top frame is fixedly connected to the top of the car, the top frame is arranged circumferentially along the top of the car, and a bracket is fixedly arranged inside the top of the car; the driving mechanism includes a screw and a driving assembly for driving the screw to rotate, the screw is rotatably mounted on the bracket, the left and right ends of the screw are respectively provided with a left-hand threaded section and a right-hand threaded section, and the two ends of the screw are respectively threadedly connected to sliders, the driving mechanism also includes two sets of transmission assemblies, and the two sliders control the opening and closing of the two car doors through the two sets of transmission assemblies respectively.

[0009] By adopting the above technical solution, when the car door opens and closes, the screw rotates under the action of the drive assembly. The rotation of the screw drives the sliders at both ends to move in opposite directions or relative to each other. The movement of the sliders realizes the opening and closing of the car door through the transmission assembly. Through mechanical synchronization, bidirectional symmetrical force is achieved, balancing the lateral centrifugal force and vertical gravity on both sides of the door body, and avoiding the eccentric swaying caused by unilateral drive. 。 For example, when the door opens, the sliders on both sides move outward synchronously, and the door unfolds along an arc-shaped trajectory, with a uniform torque distribution, reducing jamming or misalignment caused by uneven force.

[0010] Preferably, the drive assembly includes a permanent magnet synchronous servo motor, a reducer, and a flexible coupling. One end of the flexible coupling is connected to the screw, and the other end is connected to the output shaft of the reducer. The input shaft of the reducer is connected to the permanent magnet synchronous servo motor.

[0011] By adopting the above technical solutions, the flexible coupling absorbs the vibration energy of the motor and reducer during operation through its elastic elements, reducing the dynamic transmission of vibration to the screw and car door, lowering system noise, and improving ride comfort. Simultaneously, the flexible coupling allows for a certain degree of axial, radial, or angular misalignment between the motor shaft, reducer input shaft, and screw shaft. The deformation of the elastic elements automatically compensates for misalignment caused by installation errors or thermal expansion, ensuring smooth power transmission. The permanent magnet synchronous servo motor reduces its output speed and amplifies its torque through the reducer, adapting to the low-speed, high-torque characteristics required for the screw-driven car door. Therefore, the drive assembly, through the vibration damping and inter-shaft compensation functions of the flexible coupling, combined with the torque optimization of the reducer and the precise control of the motor, achieves smooth opening and closing, precise trajectory control, and long-term reliability of the fully circular sightseeing elevator door under heavy and complex load conditions. Furthermore, the modular design improves maintenance convenience, making it a key technical support for commercial sightseeing elevator car door systems.

[0012] Preferably, a central shaft is fixedly connected to the center of the car roof, and the car door rotates around the central shaft when opening and closing. The transmission assembly includes a swing arm and a connecting member. The swing arm includes a swing rod and an adjusting rod. One end of the swing rod is rotatably connected to the central shaft, and the adjusting rod is connected to the end of the swing rod away from the central shaft. The end of the adjusting rod away from the swing rod is fixedly connected to the car door through the connecting member. The adjusting rod is telescopically connected to the swing rod. A sliding groove is provided on the side wall of the swing rod, and a connecting rod is fixedly connected to the sliding block. The connecting rod is slidably connected in the sliding groove.

[0013] By adopting the above technical solution, the central axis at the center of the car top serves as the geometric reference point for the rotation of the swing arm, ensuring that the swing arm rotates around a fixed axis and balancing the lateral centrifugal force and vertical gravity of the car door, maintaining the symmetry and stability of the motion trajectory. When the slider moves on the screw, the slider's movement drives the connecting rod on it to move. The connecting rod slides in the groove and drives the swing arm to rotate around the central axis, thereby driving the car door to run along a preset arc path, avoiding deviation or swaying.

[0014] Preferably, sensors are installed at both ends of the slide, the sensors are used to sense the position of the connecting rod, and the sensors are electrically connected to the permanent magnet synchronous servo motor.

[0015] By adopting the above technical solution, when the connecting rod moves in the slide groove to the end and enters the sensing range of the sensor, the sensor controls the permanent magnet synchronous servo motor to start and stop, thereby controlling the operation of the permanent magnet synchronous servo motor.

[0016] Preferably, the screw is provided with a dust cover for dust prevention, and the dust cover has a through hole for the slider to pass through, and the through hole is sealed to the slider.

[0017] By adopting the above technical solution, the dust cover can cover the screw area, forming a physical barrier to prevent external dust from entering, protecting the screw and internal mechanical structure from contamination, and reducing mechanical wear and precision loss caused by dust accumulation.

[0018] Preferably, the guiding mechanism includes an upper support guiding assembly, a middle outer sliding guide assembly, and a lower sill ball wheel guiding assembly. The upper support guiding assembly includes two support blocks. A through groove is provided on the side wall of the top frame for the swing rod to pass through and slide. The two support blocks are respectively fixedly sleeved on the ends of the two adjusting rods away from the swing rod. A first slide rail is provided on the inner wall of the through groove for the support blocks to slide.

[0019] By adopting the above technical solution, the guiding mechanism forms a three-dimensional stabilization system through upper support guidance, middle sliding block guidance, and bottom sill ball wheel guidance, thereby improving the stability of the large-sized arc-shaped car door during movement. When the transmission component drives the car door to open and close, the support block moves within the first slide rail following the movement of the car door. The arrangement between the first slide rail and the support block not only restricts the movement trajectory of the swing arm but also provides support to the end of the swing arm, reducing the impact of the car door's gravity on the swing arm.

[0020] Preferably, the middle outer sliding guide assembly includes two guide blocks, which are respectively fixedly connected to the outer wall of the car door. A second slide rail is provided on the outer wall of the car body, and the guide blocks are slidably connected to the second slide rail.

[0021] By adopting the above technical solution, the two guide blocks and the second slide rail on the outside of the car body form a sliding engagement, constituting a double-point guide structure, which ensures that the car door or car body slides smoothly along a predetermined straight trajectory during the movement, effectively avoiding deviation, shaking or jamming, and improving the accuracy and reliability of the movement.

[0022] Preferably, the lower sill ball wheel guide assembly includes multiple rollers, the bottom of the car is provided with a third slide rail, the multiple rollers are evenly distributed and fixedly installed at the lower ends of the two car doors, and the rollers are rotatably connected in the third slide rail.

[0023] By adopting the above technical solutions, the roller design distributes the load borne by the lower end of the car door, avoiding localized wear caused by excessive force at a single point; at the same time, the rolling friction characteristics reduce the wear rate of the slide rail and roller surface, significantly reducing motion resistance, making the lower end of the car door move more smoothly in the slide rail, reducing energy loss and operating noise, and improving the comfort of equipment operation.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The guiding mechanism ensures that the car door moves precisely along a predetermined arc path, avoiding jamming, deviation, or shaking. The drive mechanism controls the opening and closing of the car door. By centrally arranging the mechanism on the car top, vibration transmission to the car interior can be reduced, improving passenger comfort. The central axis at the center of the car top serves as the geometric reference point for the rotation of the swing arm, ensuring that the swing arm rotates around a fixed axis and balancing the lateral centrifugal force and vertical gravity of the car door, maintaining the symmetry and stability of the motion trajectory. When the slider moves on the screw, the slider's movement drives the connecting rod on it to move. The connecting rod slides in the groove and drives the swing arm to rotate around the central axis, thereby driving the car door to run along a preset arc path, avoiding deviation or swaying. The guiding mechanism forms a three-dimensional stabilization system through upper support guidance, middle sliding block guidance, and bottom sill ball wheel guidance, improving the stability of the large-sized arc-shaped car door during movement. When the transmission component drives the car door to open and close, the support block moves within the first slide rail following the movement of the car door. The arrangement between the first slide rail and the support block not only restricts the movement trajectory of the swing arm but also provides support to the end of the swing arm, reducing the impact of the car door's gravity on the swing arm. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the car in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the prominent support block structure in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the structure protruding from the roof in an embodiment of this application.

[0028] Figure 4 This is a schematic diagram of the structure of the dust cover in the embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the structure of the prominent guide block in the embodiment of this application.

[0030] Explanation of reference numerals in the attached figures: 1. Car; 2. Car door; 3. Car top; 4. Car body; 5. Car bottom; 6. Drive mechanism; 7. Guide mechanism; 8. Top frame; 9. Bracket; 10. Screw; 11. Drive assembly; 12. Transmission assembly; 13. Permanent magnet synchronous servo motor; 14. Reducer; 15. Flexible coupling; 16. Central shaft; 17. Swing arm; 18. Connector; 19. Swing rod; 20. Adjusting rod; 21. Slide groove; 22. Connection 23. Rod; 24. Slider; 25. Dust cover; 26. Perforation; 27. Upper support guide assembly; 28. Middle outer sliding guide assembly; 29. ​​Lower sill ball wheel guide assembly; 30. Support block; 31. Through groove; 32. First slide rail; 33. Guide block; 34. Second slide rail; 35. Roller; 36. Third slide rail; 37. Abutment block; 38. Bolt; 39. Car entrance; 40. Drive block; 41. Landing door. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] like Figure 1 and Figure 2As shown in the embodiment of this application, an arc-shaped door operator for a commercial fully circular sightseeing elevator is disclosed, including a car 1 and two car doors 2. The car 1 is cylindrical in shape, and the two car doors 2 are symmetrically arranged and both are arc-shaped. The car 1 includes a car top 3, a car body 4, and a car bottom 5; a car entrance 38 is opened on the side wall of the car body 4, and the two car doors 2 are located at the car entrance 38 when closed, and the car doors 2 are arc-shaped.

[0033] like Figure 3 As shown, the center of the car door 2 and the center of the car 1 are at the same point. There is also a landing door on the outside of the car door. When the car door 2 reaches a certain floor and is ready to open, the car door 2 and the landing door 40 are connected by a door knife assembly. The movement of the car door 2 causes the landing door 40 to move synchronously, thereby opening or closing the elevator. The top of the car 3 is equipped with a drive mechanism 6 for driving the car door 2 in an arc-shaped motion and a guide mechanism 7 for guiding the movement of the car door 2.

[0034] like Figure 2 and Figure 3 As shown, a top frame 8 is fixedly welded to the top of the car 3, and the top frame 8 is arranged in a ring along the circumference of the top of the car 3. The drive mechanism 6 is set on the top of the car 3 inside the top frame 8. The drive mechanism 6 includes a screw 10 and a drive assembly 11 that drives the screw 10 to rotate. The surface of the screw 10 is nitrided to improve its wear resistance and increase its service life to twice that of traditional screws. The length of the screw 10 is determined according to the elevator door. A bracket 9 is fixedly installed on the top of the car 3, and the screw 10 rotates on the bracket 9. The bracket 9 includes three support structures, which support the two ends and the middle of the screw 10 respectively. The left and right ends of the screw 10 are respectively provided with left-hand threaded sections and right-hand threaded sections, that is, a bidirectional screw 10. The two ends of the screw 10 are respectively threaded with sliders 23. The screw 10 rotates under the action of the drive assembly 11, and the rotation of the screw 10 drives the two sliders 23 on it to slide synchronously relative to each other or in opposite directions. The slider 23 is equipped with an integrated automatic quantitative oil injection device, which uses a micro motor to drive a quantitative gear pump to automatically replenish food-grade lubricating oil every 500 openings and closings.

[0035] like Figure 3 and Figure 4 As shown, the drive assembly 11 includes a permanent magnet synchronous servo motor 13, a reducer 14, and a flexible coupling 15. The permanent magnet synchronous servo motor 13, reducer 14, and flexible coupling 15 are all located at one end of the screw 10 and mounted on the bracket 9. One end of the flexible coupling 15 is connected to the screw 10, and the other end is connected to the output shaft of the reducer 14. The input shaft of the reducer 14 is connected to the permanent magnet synchronous servo motor 13. The reducer 14 uses a planetary gear reduction mechanism with a reduction ratio of 1:20 to ensure output torque. 150 N·m; The permanent magnet synchronous servo motor 13 adopts a fully sealed aluminum alloy shell, with a built-in temperature sensor and overload protector, and low operating noise. 55dB, reducing noise to meet the acoustic requirements of commercial public spaces.

[0036] like Figure 3 and Figure 4 As shown, the permanent magnet synchronous servo motor 13 drives the screw 10 to rotate through the reducer 14 and the flexible coupling 15. The reducer 14 can reduce the output speed and amplify the torque, adapting to the low-speed, high-torque characteristics required by the screw 10 to drive the car door 2. The flexible coupling 15 absorbs the vibration energy of the motor and reducer 14 during operation through elastic elements, reducing the dynamic transmission of vibration to the screw 10 and the car door 2, reducing system noise, and improving ride comfort. In addition, the flexible coupling 15 allows for a certain degree of axial, radial, or angular deviation between the motor shaft, the input shaft of the reducer 14, and the shaft of the screw 10. The deformation of the elastic element automatically compensates for misalignment caused by installation errors or thermal expansion, ensuring smooth power transmission. Therefore, through the shock absorption and inter-shaft compensation functions of the flexible coupling 15, combined with the torque optimization of the reducer 14 and the precise control of the motor, the smooth opening and closing, precise trajectory control, and long-term reliability of the full-circular sightseeing elevator door under heavy load and complex load conditions are achieved. At the same time, the modular design improves maintenance convenience, which is a key technical support for the commercial sightseeing elevator car door 2 system.

[0037] like Figure 2 and Figure 3 As shown, the drive mechanism 6 also includes a transmission assembly 12 for moving the car door 2. Two sets of transmission assemblies 12 are provided, each corresponding to one of the two car doors 2. A central shaft 16 is fixedly welded to the center of the car top 3. The central shaft 16 is cylindrical, and its axis is vertically oriented. The car door 2 rotates around the central shaft 16 during opening and closing. The transmission assembly 12 includes a swing arm 17 and a connecting member 18. The connecting member 18 is fixedly welded to the top of the car door 2. One end of the swing arm 17 is connected to the connecting member 18, and the other end rotates around the central shaft 16. The swing arm 17 includes a swing rod 19 and an adjusting rod 20. The adjusting rod 20 is telescopically positioned on the extension line of the swing rod 19. The end of the swing rod 19 away from the adjusting rod 20 is rotatably connected to the central shaft 16. A flange is mounted on the lower end of the central shaft 16 to support the swing rod 19.

[0038] like Figure 2 and Figure 4As shown, the adjusting rod 20 is threaded through the swing rod 19. The end of the adjusting rod 20 away from the swing rod 19 is fixedly connected to the connector 18, which is fixedly connected to the top side wall of the car door 2. The end of the swing rod 19 near the adjusting rod 20 is rotatably connected to the driving block 39, which is threaded to the adjusting rod 20. The operator rotates the driving block 39 to adjust the length of the swing arm by extending the adjusting rod 20 out of the swing rod 19. A bolt 37 is provided on the driving block, which passes through the driving block 39 and abuts against the adjusting rod 20. The operator can tighten the bolt 37 to limit the rotation of the driving block, thereby preventing the driving block from rotating spontaneously.

[0039] like Figure 3 and Figure 4 As shown, a groove 21 is provided on the side wall of the swing arm 19. The groove 21 is an oblong groove. A connecting rod 22 is fixedly welded to the slider 23. The connecting rod 22 is perpendicular to the slider 23 in the vertical direction. The connecting rod 22 is slidably connected in the groove 21. An abutment block 36 is connected to the end of the connecting rod 22. The connecting rod 22 passes through the groove 21, and the abutment block 36 abuts against the surface of the swing arm 19, thereby preventing the connecting rod 22 from falling off the swing arm.

[0040] An infrared light curtain system and a contact-type anti-pinch strip are integrated at the door closing point. A dual triggering force of ≤5N is sufficient to reverse the motor. The infrared light has a beam spacing of ≤40mm and a response time of ≤0.02s. Sensors are installed at both ends of the slide rail 21. These sensors are used to determine the distance between the end of the slide rail 21 and the connecting rod 22 that slides within it. The sensors are electrically connected to the permanent magnet synchronous servo motor 13. When the connecting rod 22 enters the range set by the sensor, the sensor controls the permanent magnet synchronous servo motor 13 to stop running, thus detecting the position of the car door 2. When the car door 2 is fully open or closed, the permanent magnet synchronous servo motor 13 stops running. The sensors, combined with the infrared light curtain system, achieve precise bidirectional limiting of the door opening and closing.

[0041] Vibration and temperature sensors are installed at the shafts of the permanent magnet synchronous servo motor 13, screw 10, and swing arm 17 to collect real-time operating data, including but not limited to vibration frequency, temperature, and number of opening and closing cycles. This data is uploaded to a cloud platform via a 4G module. When parameters exceed thresholds, local alarms and remote notifications are immediately triggered, automatically detecting the elevator's status and improving its safety performance. Furthermore, the motor system establishes a fault prediction model based on big data analysis, automatically calculating the remaining lifespan of vulnerable components such as screw 10 and slider 23, generating maintenance reminders 30 days in advance. The system supports remote parameter adjustment, such as door opening and closing speed and torque thresholds, optimizing the operating curve without on-site operation. The elevator system also includes an anti-pry and emergency system. After the door closes, the electromagnetic anti-pry locking device is automatically activated, locking the car door 2 from the opposite angle to prevent forced opening and potential falls. A UPS emergency power supply is provided; in case of power failure, the door operator can be remotely controlled via an emergency button inside the car or from the building monitoring center.

[0042] like Figure 2 As shown, when the car door 2 needs to be opened or closed, the screw 10 rotates under the action of the drive assembly 11. The rotation of the screw 10 drives the sliders 23 at both ends to move in opposite directions or relative to each other. The movement of the sliders 23 drives the connecting rod 22 on them to move together. The connecting rod 22 is inserted into the slide groove 21 and abuts against the inner wall of the slide groove 21, driving the swing rod 19 to rotate around the central axis 16. The rotation of the swing rod 19 drives the car door 2 to rotate through the adjusting rod 20, thereby realizing the opening and closing of the car door 2. Through the left-hand and right-hand threads at both ends of the screw 10, the two sliders 23 drive the two swing arms 17 to achieve bidirectional symmetrical force, balancing the lateral centrifugal force and vertical gravity on both sides of the door body, avoiding the eccentric swaying caused by unilateral drive. For example, when the door body is opened, the sliders 23 on both sides move outward synchronously, and the door body unfolds along the arc trajectory, with uniform torque distribution, reducing jamming or misalignment caused by uneven force.

[0043] like Figure 4 As shown, a dust cover 24 for dust prevention is provided on the screw 10. Since there are two sliding blocks 23 moving on the screw 10, two dust covers 24 are provided. The two ends of the two dust covers 24 are respectively connected to the end bracket 9 and the middle bracket 9. The dust cover 24 has a through hole 25 for the sliding block 23 to pass through, and the opening of the through hole 25 is sealed to the sliding block 23. The dust cover 24 can cover the area of ​​the screw 10, forming a physical barrier to prevent external dust from entering, protecting the screw 10 and its internal mechanical structure from contamination, and reducing mechanical wear and precision loss caused by dust accumulation.

[0044] like Figure 2 and Figure 5As shown, the guide mechanism 7 includes an upper support guide assembly 26, a middle outer sliding guide assembly 27, and a lower sill ball wheel guide assembly 28. The upper support guide assembly 26 includes two support blocks 29, which are fixedly sleeved on the ends of the two adjusting rods 20 away from the swing rod 19. Two symmetrical first slide rails 31 are provided on the side wall of the top frame 8, and the two support blocks 29 are slidably connected to the two first slide rails 31 respectively. The first slide rails 31 are arc-shaped and restrict the movement path of the support blocks 29, thereby guiding the movement path of the car door 2. The support blocks 29 are arranged close to the car door 2, and their lower end faces abut against the bottom inner wall of the first slide rails 31. Therefore, the support blocks 29 play a certain role in supporting the gravity of the car door 2, reducing the lever arm length corresponding to the car door 2, thereby reducing the burden of the weight of the car door 2 on the swing arm 17.

[0045] like Figure 2 and Figure 5 As shown, the middle outer sliding guide assembly 27 includes two guide blocks 32, which are fixedly welded to the outer wall of the car door 2. The guide blocks 32 are located at a position of the car door 2 that is not located at the entrance of the car 1. The outer wall of the car body 4 is provided with a second slide rail 33. The second slide rail 33 is arc-shaped on the outer wall of the car body 4, and its cross-section is set as a dovetail groove. The guide blocks 32 are set as dovetail blocks. The two guide blocks 32 are slidably connected in the second slide rail 33. The setting of the dovetail groove and the dovetail block can prevent the guide blocks 32 from separating from the second slide rail 33. The lower sill ball wheel guide assembly 28 includes multiple rollers 34. The bottom of the car 5 is provided with a third slide rail 35, which is located below the car door 2. The multiple rollers 34 are evenly distributed and installed at the lower ends of the two car doors 2. The rollers 34 are tumblingly connected to the third slide rail 35. The multiple rollers 34 share the load borne by the lower end of the car door 2, avoiding local wear caused by excessive force at a single point. At the same time, the rolling friction characteristics reduce the friction at the bottom of the car door 2.

[0046] like Figure 2 and Figure 5 As shown, the guide mechanism 7 guides and supports the car door 2 from the top, middle and bottom respectively through the support block 29, guide block 32 and roller 34, forming a three-dimensional stability system, which improves the stability of the large-size arc-shaped car door 2 during movement, ensures that the car door 2 or the car body 4 slides smoothly along the predetermined straight trajectory during movement, effectively avoids deviation, shaking or jamming, and improves movement accuracy and reliability.

[0047] The implementation principle of this application embodiment is as follows: Through synchronous bidirectional drive and the setting of the swing arm 17 in the drive mechanism 6, and the high-precision rotation-arc motion conversion, the guide mechanism 7 can ensure that the car door 2 moves accurately along the predetermined arc path, solving the problems of swaying, offset, jamming, and misalignment caused by the combined load when the arc length of the full-circular sightseeing elevator door is large. The drive mechanism 6 is centrally arranged on the top of the car 3, and the setting of the reducer 14 and the flexible coupling 15 can reduce the transmission of vibration to the interior of the car 1, improving the riding comfort.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An arc-shaped door operator for a commercial fully circular sightseeing elevator, characterized in that: It includes a car (1) and two car doors (2), which slide around the car (1) in opposite directions or back to back. The car (1) includes a car top (3), a car body (4), and a car bottom (5). The car top (3) is provided with a drive mechanism (6) for driving the car doors (2) to move in an arc and a guide mechanism (7) for guiding the movement of the car doors (2).

2. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 1, characterized in that: A top frame (8) is fixedly connected to the top of the car (3). The top frame (8) is arranged around the top of the car (3). A bracket (9) is fixedly arranged inside the top of the car (3). The driving mechanism (6) includes a screw (10) and a driving assembly (11) for driving the screw (10) to rotate. The screw (10) is rotatably arranged on the bracket (9). The left and right ends of the screw (10) are respectively provided with a left-hand thread section and a right-hand thread section. The two ends of the screw (10) are respectively threaded with sliders (23). The driving mechanism (6) also includes two sets of transmission assemblies (12). The two sliders (23) control the opening and closing of the two car doors (2) through the two sets of transmission assemblies (12).

3. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 2, characterized in that: The drive assembly (11) includes a permanent magnet synchronous servo motor (13), a reducer (14), and a flexible coupling (15). One end of the flexible coupling (15) is connected to the screw (10), and the other end is connected to the output shaft of the reducer (14). The input shaft of the reducer (14) is connected to the permanent magnet synchronous servo motor (13).

4. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 2, characterized in that: A central shaft (16) is fixedly connected to the center of the car top (3). When the car door (2) opens and closes, it rotates around the central shaft (16). The transmission assembly (12) includes a swing arm (17) and a connecting piece (18). The swing arm (17) includes a swing rod (19) and an adjusting rod (20). One end of the swing rod (19) is rotatably connected to the central shaft (16). The adjusting rod (20) is connected to the end of the swing rod (19) away from the central shaft (16). The end of the adjusting rod (20) away from the swing rod (19) is fixedly connected to the car door (2) through the connecting piece (18). The adjusting rod (20) is telescopically connected to the swing rod (19). A sliding groove (21) is provided on the side wall of the swing rod (19). A connecting rod (22) is fixedly connected to the slider (23). The connecting rod (22) is slidably connected in the sliding groove (21).

5. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 4, characterized in that: Sensors are installed at both ends of the slide (21), and the sensors are used to sense the position of the connecting rod (22). The sensors are electrically connected to the permanent magnet synchronous servo motor (13).

6. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 2, characterized in that: The screw (10) is provided with a dust cover (24) for dust prevention. The dust cover (24) has a through hole (25) for the slider (23) to pass through. The opening of the through hole (25) is sealed to the slider (23).

7. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 4, characterized in that: The guiding mechanism (7) includes an upper support guiding assembly (26), a middle outer sliding guide assembly (27), and a lower sill ball wheel guide assembly (28). The upper support guiding assembly (26) includes two support blocks (29). The top frame (8) has a through groove (30) on its side wall for the swing rod (19) to pass through and slide. The two support blocks (29) are respectively fixedly sleeved on the ends of the two adjusting rods (20) away from the swing rod (19). The inner wall of the through groove (30) has a first slide rail (31) for the support blocks (29) to slide.

8. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 7, characterized in that: The middle outer sliding guide assembly (27) includes two guide blocks (32), which are fixedly connected to the outer wall of the car door (2). A second slide rail (33) is provided on the outer wall of the car body (4), and the guide blocks (32) are slidably connected to the second slide rail (33).

9. The arc-shaped door operator of a commercial fully circular sightseeing elevator according to claim 7, characterized in that: The lower sill ball wheel guide assembly (28) includes multiple rollers (34), and the bottom of the car (5) is provided with a third slide rail (35). The multiple rollers (34) are evenly distributed and fixedly installed at the lower ends of the two car doors (2), and the rollers (34) are tumblingly connected in the third slide rail (35).

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