Elevator car guide with multidirectional movement function

Abstract

The application relates to the technical field of elevator components, in particular to an elevator car guiding device with a multidirectional moving function, which comprises a mounting base, a turning guiding assembly and a turning driving mechanism. The mounting base is provided with a turning accommodating cavity, the turning guiding assembly is rotatably arranged in the cavity, and is integrated with a longitudinal advancing part and a transverse advancing part; the turning driving mechanism is in transmission connection with the turning guiding assembly, and drives the turning of the turning guiding assembly to switch the guiding direction. The application can realize efficient guiding switching of the elevator car between the vertical and horizontal directions.

Description

Technical Field

[0001] This utility model belongs to the field of elevator component technology, specifically an elevator car guide device with multi-directional movement function. Background Technology

[0002] With the continuous development of elevator technology, the design of multi-car elevator systems and guiding devices has gradually become a research hotspot. However, existing elevator guiding devices still have certain limitations in achieving multi-directional movement functions, making it difficult to meet the needs for efficient and flexible operation in complex scenarios. In existing technologies, some guiding devices only support vertical motion control and lack the ability to coordinate movement in horizontal or other directions, limiting their applicability in multi-shaft or circulating operation systems. In addition, some guiding structures with multi-directional operation capabilities rely on complex drive and transmission mechanisms, which have certain limitations in the precision of position adjustment and response speed during operation. This results in the need to improve the continuity and stability of system operation under conditions requiring frequent changes in direction or precise positioning. Utility Model Content

[0003] This utility model provides an elevator car guiding device with multi-directional movement function, which aims to solve the problems of complex structure, insufficient flexibility and difficulty in efficient switching between vertical and horizontal directions of existing elevator guiding devices.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An elevator car guiding device with multi-directional movement function includes a mounting base, a steering guide assembly, and a steering drive mechanism, wherein:

[0006] The mounting base is used to be fixedly connected to the bottom of the elevator car, and the mounting base has a through rotating receiving cavity in the middle.

[0007] The steering guide assembly is disposed in the rotating receiving cavity of the mounting base, and the steering guide assembly is rotatably connected to the inner wall of the rotating receiving cavity. The steering guide assembly integrates a longitudinal traveling part and a lateral traveling part.

[0008] The steering drive mechanism is fixedly installed on the mounting base. The power output end of the steering drive mechanism is connected to the steering guide assembly. When the steering drive mechanism is working, it drives the steering guide assembly to rotate around its own central axis to switch the working state of the longitudinal travel part or the lateral travel part.

[0009] Furthermore, the steering guide assembly includes a rotating disc, multiple longitudinal guide wheels, and multiple transverse guide wheels. The rotating disc is disc-shaped, and its outer edge is rotatably engaged with the inner wall of the rotating receiving cavity via an annular rolling bearing. The multiple longitudinal guide wheels and multiple transverse guide wheels are all mounted on the bottom surface of the rotating disc, and the rolling direction of the multiple longitudinal guide wheels is perpendicular to the rolling direction of the multiple transverse guide wheels.

[0010] Furthermore, the steering drive mechanism includes a drive source, a worm gear, and a worm wheel. The drive source is fixed to the top surface of the mounting base. One end of the worm gear is fixedly connected to the output shaft of the drive source. The worm wheel is fixedly sleeved on the outer side wall of the rotating disk. The worm gear and the worm wheel mesh and transmit power. When the drive source drives the worm gear to rotate, it drives the rotating disk to rotate via the worm wheel.

[0011] Furthermore, the steering guide assembly also includes multiple elastic support arms and multiple reset components. The multiple elastic support arms are correspondingly disposed on the multiple longitudinal guide wheels and the multiple transverse guide wheels. One end of each elastic support arm is pivotally connected to the bottom of the rotating disk, and the other end is rotatably connected to the corresponding guide wheel. The reset component is connected between the elastic support arm and the rotating disk, providing a preload force to the elastic support arm in the direction of the guide rail.

[0012] Furthermore, the present invention also includes a locking mechanism, which includes a plurality of positioning grooves and a locking pin. The plurality of positioning grooves are formed on the side wall of the rotating disk, and their circumferential positions correspond to the working positions of the longitudinal traveling part and the transverse traveling part, respectively. The locking pin is telescopically mounted on the mounting base, and the end of the locking pin selectively engages with the positioning groove.

[0013] Furthermore, the locking mechanism also includes an electromagnetic actuator, which is fixedly installed on the outer wall of the mounting base. The locking pin is fixedly connected to the telescopic end of the electromagnetic actuator. The end of the locking pin has a tapered guide surface, and the opening edge of the positioning groove has a chamfer. The tapered guide surface cooperates with the chamfer.

[0014] Furthermore, the mounting base is a rectangular frame structure, with fixing bolt holes at each of the four corners of the rectangular frame. An annular mounting step is machined on the inner wall of the rotating cavity. The outer ring of the annular rolling bearing is fixed on the annular mounting step, and the outer edge of the rotating disk is pressed against the inner ring of the annular rolling bearing.

[0015] Furthermore, the present invention also includes a protective housing, which is a hollow cover. The bottom edge of the protective housing is fixed to the top surface of the mounting base by fasteners. The protective housing completely covers the steering drive mechanism and the top of the rotating disk. The top of the protective housing has an opening for maintenance, and the opening is equipped with a removable cover plate.

[0016] Furthermore, the positioning assembly includes a telescopic rod and a compression spring. One end of the telescopic rod is hinged to the bottom of the rotating disk, and the other end of the telescopic rod is hinged to the middle of the elastic support arm. The compression spring is sleeved on the outside of the telescopic rod, and both ends of the compression spring abut against the bottom surface of the elastic support arm and the rotating disk, respectively.

[0017] This utility model provides an elevator car guiding device with multi-directional movement function, which has the following beneficial effects:

[0018] This elevator car guiding device with multi-directional movement function achieves rapid switching between vertical and horizontal guiding directions by setting a rotatable steering guide assembly on the mounting base and integrating mutually perpendicular longitudinal and lateral traveling parts on the assembly. The assembly is driven to rotate by a steering drive mechanism. Compared to solutions relying on complex external transmission mechanisms, this structure is more compact, reducing installation space and debugging difficulty. The steering drive mechanism uses worm gear transmission, utilizing its large transmission ratio and self-locking characteristics to achieve stable and precise rotational positioning without the need for additional braking components. The application of the locking mechanism, through the physical engagement of the locking pin and the positioning groove, provides dual position fixation for the car when traveling in a single direction, significantly enhancing the reliability of operation. Simultaneously, each guide wheel is connected by an elastic support arm. This structure absorbs the impact and vibration caused by uneven guide rails during car operation, improving ride smoothness and comfort. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the steering guide assembly and the mounting base according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram showing the connection between the steering drive mechanism and the rotating disk of this utility model;

[0022] Figure 4 This is a partially enlarged schematic diagram of the connection between the elastic support arm and the guide wheel according to an embodiment of this application;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Mounting base; 2. Rotating receiving cavity; 3. Rotating disc; 4. Longitudinal guide wheel; 5. Lateral guide wheel; 6. Drive source; 7. Worm gear; 8. Worm wheel; 9. Annular rolling bearing; 10. Elastic support arm; 11. Reset assembly; 12. Telescopic rod; 13. Compression spring; 14. Positioning groove; 15. Locking pin; 16. Electromagnetic actuator; 17. Protective housing; 18. Fixing bolt hole; 19. Annular mounting step; 20. Longitudinal traveling section; 21. Lateral traveling section; 22. Guide rail; 23. Pivot point; 24. Conical guide surface; 25. Chamfer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides an elevator car guiding device with multi-directional movement function. The device is applied to special elevator systems that require the elevator car to switch between vertical and horizontal tracks. Through the rotation and switching of the internal structure, the guide wheel group and the guide rails 22 in different directions are matched.

[0027] Please see Figures 1 to 3 This utility model provides a technical solution: an elevator car guiding device with multi-directional movement function, including a mounting base 1, a steering guide assembly and a steering drive mechanism.

[0028] Mounting base 1 serves as the load-bearing and installation foundation for the entire device. Its structure is a rectangular frame made of high-strength alloy steel, integrally cast and then precision machined to achieve sufficient structural rigidity and installation accuracy. Fixing bolt holes 18 are provided at the four corners of mounting base 1, allowing it to be securely fixed to the bottom frame of the elevator car using high-strength bolts. At the geometric center of mounting base 1, a through-hole rotating cavity 2 is provided. This rotating cavity 2 is a cylindrical cavity with its inner wall precision ground. A ring-shaped mounting step 19 is machined circumferentially on the inner wall of the rotating cavity 2, providing a precise axial and radial positioning reference for the subsequent installation of the ring rolling bearing 9.

[0029] The steering guide assembly is the core component for switching steering directions, and it is entirely housed within the rotating cavity 2 of the mounting base 1. The steering guide assembly includes a rotating disc 3, a longitudinal traveling section 20, and a lateral traveling section 21. The main body of the rotating disc 3 is a solid disc-shaped structure, and its outer diameter is adapted to the inner diameter of the rotating cavity 2. The outer edge of the rotating disc 3 and the inner wall of the rotating cavity 2 are rotatably connected via an annular rolling bearing 9. Specifically, the outer ring of the annular rolling bearing 9 is press-fitted onto the annular mounting step 19 using an interference fit, while the outer wall of the rotating disc 3 is tightly pressed and fixed to the inner ring of the annular rolling bearing 9. This connection method provides low-friction, high-precision support for the rotation of the rotating disc 3.

[0030] Both the longitudinal traveling section 20 and the transverse traveling section 21 are integrated on the bottom surface of the rotating disk 3. The longitudinal traveling section 20 consists of multiple longitudinal guide wheels 4, and the transverse traveling section 21 consists of multiple transverse guide wheels 5. In this embodiment, there are four longitudinal guide wheels 4 and four transverse guide wheels 5, symmetrically distributed on two mutually perpendicular diameter lines at the bottom of the rotating disk 3. The rolling directions of each longitudinal guide wheel 4 are parallel to each other, collectively defining the longitudinal traveling direction of the car. Similarly, the rolling directions of each transverse guide wheel 5 are also parallel to each other, and maintain a precise 90-degree perpendicular relationship with the rolling directions of all the longitudinal guide wheels 4. The wheel bodies of the guide wheels 4 and 5 are made of high-wear-resistant polyurethane, and the wheel cores have built-in rolling bearings to reduce rolling friction.

[0031] Please see Figure 3 The steering drive mechanism is fixedly mounted on the mounting base 1, and its power output end is connected to the rotating disk 3 in the steering guide assembly. The steering drive mechanism includes a drive source 6, a worm 7, and a worm wheel 8. In this embodiment, the drive source 6 is a DC geared motor, which is fixed to the top surface of the mounting base 1 by a mounting bracket. The worm 7 is a standard cylindrical worm, one end of which is fixedly connected to the output shaft of the drive source 6 by a coupling, and the other end is mounted on the mounting base 1 by a support bearing seat. The worm wheel 8 is a standard ring gear, which is evenly fixed on the outer wall of the rotating disk 3 by multiple fastening screws, and its teeth precisely mesh with the thread of the worm 7. When the drive source 6 is working, its output rotational motion is transmitted to the worm 7, and the rotation of the worm 7 then drives the meshing worm wheel 8 to rotate. Since the worm wheel 8 is integrally fixed with the rotating disk 3, the rotating disk 3, together with the longitudinal guide wheel 4 and the transverse guide wheel 5 mounted on it, rotates around its own central axis. The worm gear transmission mechanism has the characteristics of large transmission ratio and self-locking. When the drive source 6 is de-energized and stops working, a self-locking mechanism will be formed between the worm 7 and the worm wheel 8. The torque applied to the rotating disk 3 by the outside cannot drive the worm 7 to rotate in the reverse direction, thereby maintaining the angular position of the rotating disk 3 without external braking.

[0032] Please see Figure 4 To improve the smoothness of elevator operation, the steering and guiding assembly also includes multiple elastic support arms 10 and multiple reset components 11. The longitudinal guide wheel 4 and the transverse guide wheel 5 are not directly fixed to the rotating disk 3, but are connected via their respective elastic support arms 10. One end of each elastic support arm 10 is pivotally connected to the bottom of the rotating disk 3 via a pivot point 23, and the other end is rotatably connected to the corresponding guide wheel 4 or 5 via an axle. The reset components 11 are connected between the elastic support arms 10 and the rotating disk 3.

[0033] In one specific implementation, the reset assembly 11 includes a telescopic rod 12 and a compression spring 13. One end of the telescopic rod 12 is hinged to the bottom surface of the rotating disk 3, and the other end is hinged to the middle position of the corresponding elastic support arm 10. The compression spring 13 is sleeved on the outside of the telescopic rod 12. One end of the compression spring 13 abuts against the surface of the elastic support arm 10, and the other end abuts against the bottom surface of the rotating disk 3. In the static assembly state, the compression spring 13 is in a pre-compressed state, and its elastic force, through the telescopic rod 12 and the elastic support arm 10, applies a pre-tightening force to the guide wheel 4 or 5 in the direction of the guide rail 22. When the car is running, if there is unevenness on the surface of the guide rail 22, the guide wheel 4 or 5 will generate radial runout. At this time, the elastic support arm 10 will swing at a small angle around the pivot point 23, and the compression spring 13 will be further compressed or rebound, absorbing the impact energy, thereby reducing the vibration transmitted to the car.

[0034] To reliably lock the angular position of the rotating disk 3 when the car is traveling in one direction, this device also includes a locking mechanism. This locking mechanism includes multiple positioning grooves 14 formed on the side wall of the rotating disk 3 and a locking pin 15 retractably mounted on the mounting base 1. In this embodiment, two positioning grooves 14 are provided, their circumferential positions spaced ninety degrees apart, precisely corresponding to the working positions of the longitudinal traveling section 20 and the transverse traveling section 21, respectively. The locking pin 15 is a solid steel pin that slides along its axial direction within a mounting sleeve fixed to the outer wall of the mounting base 1.

[0035] The locking mechanism also includes an electromagnetic actuator 16, which is fixedly mounted on the outer wall of the mounting base 1. Its internal telescopic push rod is fixedly connected to the tail end of the locking pin 15. When the electromagnetic actuator 16 is energized, its push rod extends, driving the end of the locking pin 15 into one of the positioning grooves 14, achieving physical locking. When the electromagnetic actuator 16 is de-energized, the push rod retracts under the action of the internal return spring, and the locking pin 15 disengages from the positioning groove 14. For smooth operation, the end of the locking pin 15 is machined with a tapered guide surface 24, and the opening edge of each positioning groove 14 is machined with a chamfer 25. When the locking pin 15 extends, its tapered guide surface 24 first contacts the chamfer 25 of the positioning groove 14 for initial centering guidance, and then the pin body smoothly enters the groove.

[0036] To protect the internal steering drive mechanism and the top of the rotating disk 3, the device also includes a protective housing 17. The protective housing 17 is a hollow metal cover whose shape matches the top profile of the mounting base 1. The bottom edge of the protective housing 17 is secured to the top surface of the mounting base 1 by a ring of fasteners, completely covering components such as the drive source 6, worm gear 7, and worm wheel 8. An opening for maintenance is provided at the center of the top of the protective housing 17, and this opening is fitted with a removable cover plate secured with screws.

[0037] In this invention, the working steps of the device are as follows:

[0038] 1. When the car needs to move vertically, the steering guide assembly is in its initial position. At this time, the multiple longitudinal guide wheels 4 of the longitudinal traveling part 20 are aligned and in contact with the vertical guide rail 22 in the hoistway. The electromagnetic actuator 16 is energized, and its drive locking pin 15 extends and inserts into the first positioning groove 14 corresponding to this position, firmly locking the rotating disk 3. The car moves up and down along the vertical guide rail 22, the longitudinal guide wheels 4 roll on the surface of the guide rail 22, and the elastic support arm 10 and the reset assembly 11 continue to work, absorbing the vibration caused by unevenness of the track.

[0039] 2. When the car reaches a floor where it needs to switch to horizontal movement, the car first precisely positions itself and stops. At this time, the external system sends a power-off signal to the electromagnetic actuator 16, and the locking pin 15 retracts from the positioning groove 14 under the action of the internal spring, releasing the lock on the rotating disk 3.

[0040] Third, the external system then supplies power to the drive source 6, which begins to rotate. Through the transmission of the worm gear 7 and worm wheel 8, the rotating disk 3 is driven to slowly rotate 90 degrees around its central axis. During this rotation, the longitudinal guide wheel 4 disengages from the vertical guide rail 22, while the transverse guide wheel 5 gradually turns and eventually aligns with the horizontal guide rail 22 set at the floor level.

[0041] Fourth, once the rotating disk 3 has reached its designated position, the external system stops supplying power to the drive source 6, and the self-locking characteristic of the worm gear mechanism maintains the current angle of the rotating disk 3. Immediately afterwards, the external system supplies power to the electromagnetic actuator 16 again, causing the locking pin 15 to extend. Its tapered guide surface 24 engages with the chamfer 25 of the second positioning groove 14, ultimately inserting precisely into the second positioning groove 14, thus locking the rotating disk 3 in its horizontal traveling position.

[0042] 5. After locking is completed, the car can move laterally along the horizontal guide rail 22. At this time, the horizontal guide wheel 5 rolls on the horizontal guide rail 22 to guide the car. The process of switching from horizontal movement back to vertical movement is the reverse of the above steps.

Claims

1. An elevator car guiding device with multi-directional movement function, characterized in that: Includes mounting base (1), steering guide assembly and steering drive mechanism, wherein: The mounting base (1) is fixedly connected to the bottom of the elevator car, and the mounting base (1) has a through rotating receiving cavity (2) in the middle. The steering guide assembly is disposed in the rotating receiving cavity (2) of the mounting base (1), and the steering guide assembly is rotatably connected to the inner wall of the rotating receiving cavity (2). The steering guide assembly integrates a longitudinal traveling part (20) and a transverse traveling part (21). The steering drive mechanism is fixedly installed on the mounting base (1). The power output end of the steering drive mechanism is connected to the steering guide assembly. The steering drive mechanism drives the steering guide assembly to rotate around its own central axis. The rotation switches the working state of the longitudinal travel part (20) or the lateral travel part (21).

2. The elevator car guiding device with multi-directional movement function according to claim 1, characterized in that: The steering guide assembly includes a rotating disc (3), multiple longitudinal guide wheels (4) and multiple transverse guide wheels (5). The outer edge of the rotating disc (3) is rotatably engaged with the inner wall of the rotating receiving cavity (2) through an annular rolling bearing (9). The multiple longitudinal guide wheels (4) and multiple transverse guide wheels (5) are all mounted on the bottom surface of the rotating disc (3). The rolling direction of the multiple longitudinal guide wheels (4) is perpendicular to the rolling direction of the multiple transverse guide wheels (5).

3. The elevator car guiding device with multi-directional movement function according to claim 2, characterized in that: The steering drive mechanism includes a drive source (6), a worm (7) and a worm wheel (8). The drive source (6) is fixed to the top surface of the mounting base (1). One end of the worm (7) is fixedly connected to the output shaft of the drive source (6). The worm wheel (8) is fixedly sleeved on the outer side wall of the rotating disk (3). The worm (7) and the worm wheel (8) mesh and transmit power.

4. The elevator car guiding device with multi-directional movement function according to claim 2, characterized in that: The steering guide assembly also includes multiple elastic support arms (10) and multiple reset components (11). The multiple elastic support arms (10) are respectively disposed on the multiple longitudinal guide wheels (4) and the multiple transverse guide wheels (5). One end of each elastic support arm (10) is pivotally connected to the bottom of the rotating disk (3), and the other end is rotatably connected to the corresponding guide wheel. The reset component (11) is connected between the elastic support arm (10) and the rotating disk (3).

5. The elevator car guiding device with multi-directional movement function according to claim 4, characterized in that: The reset assembly (11) includes a telescopic rod (12) and a compression spring (13). One end of the telescopic rod (12) is hinged to the bottom of the rotating disk (3), and the other end of the telescopic rod (12) is hinged to the middle of the elastic support arm (10). The compression spring (13) is sleeved on the outside of the telescopic rod (12), and the two ends of the compression spring (13) abut against the bottom surfaces of the elastic support arm (10) and the rotating disk (3), respectively.

6. The elevator car guiding device with multi-directional movement function according to claim 2, characterized in that: It also includes a locking mechanism, which includes multiple positioning grooves (14) and a locking pin (15). The multiple positioning grooves (14) are formed on the side wall of the rotating disk (3), and the locking pin (15) is telescopically mounted on the mounting base (1). The end of the locking pin (15) selectively engages with the positioning grooves (14).

7. The elevator car guiding device with multi-directional movement function according to claim 6, characterized in that: The locking mechanism further includes an electromagnetic actuator (16), which is fixedly installed on the outer wall of the mounting base (1). The locking pin (15) is fixedly connected to the telescopic end of the electromagnetic actuator (16). The end of the locking pin (15) has a tapered guide surface (24), and the opening edge of the positioning groove (14) has a chamfer (25).

8. The elevator car guiding device with multi-directional movement function according to claim 1, characterized in that: It also includes a protective housing (17) fixed to the top surface of the mounting base (1) and covering the steering drive mechanism; the top of the protective housing (17) has an opening and a removable cover plate.

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