A manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform

Abstract

This utility model belongs to the field of vehicle accessibility technology, specifically a manual / automatic dual-use drive device for a vehicle accessibility guidance platform. It includes a drive module, an elastic element, and a cylindrical rack. The drive module includes a connecting plate and a drive gear horizontally mounted on the connecting plate. Under the action of the elastic element, the drive gear abuts against the cylindrical rack. The outer wall of the cylindrical rack has a rack surface and a smooth surface. The contact position between the cylindrical rack and the drive gear switches between the rack surface and the smooth surface as the cylindrical rack rotates. When the drive gear is in contact with the rack surface, it is in automatic mode. Rotating the cylindrical rack overcomes the force of the elastic element, causing the drive gear to disengage from the rack surface and contact the smooth surface, thus entering manual mode. This invention solves the technical problem of unreliable drive caused by the easily damaged cable mechanism in the drive device of a vehicle accessibility guidance platform in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle accessibility technology, specifically a manual / automatic dual-use drive device for a vehicle accessibility guidance platform. Background Technology

[0002] Existing vehicle-mounted accessibility platforms include a frame installed inside the vehicle body (such as the space under the floor panel at the door of the vehicle), a drive unit installed inside the frame, and a guide platform driven by the drive unit. The drive unit includes a guide frame disposed at one end of the guide platform and moves along with the guide platform within the frame. One function of the guide frame is to move within the frame to push the guide platform out of the frame. At the same time, the movement of the guide frame within the frame needs to have both automatic (electric) and manual drive modes, and the two drive modes must be able to be switched at any time.

[0003] In the existing technology, a motor module is installed on the guide frame, and a toothed plate is installed on the frame. The extension direction of the toothed plate is the same as the movement direction of the guide frame. The gear of the motor module contacts the toothed plate. An additional set of linear guide rails for guidance and a cable mechanism for disengaging the gear from the toothed plate are required. However, in actual use, the wire of the cable mechanism is prone to breakage, resulting in incomplete gear engagement and unreliable drive. Summary of the Invention

[0004] In order to solve the technical problem that the cable mechanism in the drive device of the vehicle-mounted barrier-free guidance platform is easily damaged, resulting in unreliable drive, this application proposes a manual and automatic dual-use drive device for the vehicle-mounted barrier-free guidance platform, which solves the above-mentioned technical problem.

[0005] The technical solution adopted by this utility model to solve its technical problem is: This utility model provides a manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform. The vehicle-mounted barrier-free guidance platform includes a frame and a guide frame configured within the frame for horizontal movement. A sliding groove is formed on the frame, and a sliding block is slidably disposed within the sliding groove. The sliding block is limited within the sliding groove and moves horizontally. The sliding block is fixedly connected to the guide frame. The manual / automatic dual-use drive device includes a drive module mounted on the guide frame and moving with the guide frame within the frame. The drive module includes a connecting plate and a drive gear horizontally disposed on the connecting plate. The connecting plate is rotatably disposed on the guide frame in the horizontal direction. An elastic element is disposed on... Between the guide frame and the connecting plate, under the action of the elastic element, the drive gear abuts against the cylindrical rack. The cylindrical rack is rotatably mounted on the frame. The extension direction of the cylindrical rack is the same as the movement direction of the guide frame. The outer wall of the cylindrical rack has a rack surface and a smooth surface. The contact position between the cylindrical rack and the drive gear switches between the rack surface and the smooth surface as the cylindrical rack rotates. When the drive gear is in contact with the rack surface, it is in automatic mode. When the cylindrical rack is rotated, it overcomes the force of the elastic element, causing the drive gear to retract from the rack surface and contact the smooth surface, thus entering manual mode.

[0006] Furthermore, the guide frame has a crossbeam perpendicular to the cylindrical rack in the horizontal direction, and the connecting plate is connected to the crossbeam near the cylindrical rack by a rotating pin.

[0007] Furthermore, a limiting protrusion extending vertically is formed on the crossbeam. When the connecting plate rotates to the point where the drive gear is furthest from the cylindrical rack, the connecting plate abuts against the limiting protrusion and is limited.

[0008] Furthermore, the connecting plate is equipped with a first pressure block extending vertically, and a horizontally extending assembly pin is fixed on the first pressure block. The assembly pin extends to the crossbeam of the guide frame and is inserted into a second pressure block on the crossbeam. The second pressure block is vertical, and the pin hole into which the assembly pin is inserted is a horizontally extending elongated hole. The elastic element is sleeved on the assembly pin, and the two ends of the elastic element abut against the first pressure block and the second pressure block, respectively.

[0009] Furthermore, the connecting plate is provided with a clearance hole extending along the rotation direction of the connecting plate. The clearance hole is disposed between the rotating pin and the first pressure block. The stabilizing bolt of the connecting plate passes through the clearance hole and stabilizes the connecting plate on the crossbeam.

[0010] Furthermore, sliding grooves are formed on both sides of the frame, and sliding blocks are disposed in each sliding groove.

[0011] Furthermore, there are two cylindrical racks, each equipped with an independent drive module and an elastic element, and each cylindrical rack is fitted with a sliding block, which slidably engages with the corresponding cylindrical rack.

[0012] Furthermore, both ends of the cylindrical rack are provided with fixing blocks fixed to the frame, and the sliding block is arranged between the two fixing blocks.

[0013] Furthermore, the cylindrical rack has a non-cylindrical end that protrudes from the fixing block.

[0014] Furthermore, the drive module includes a motor, the motor including a drive gear driven by the drive shaft of the motor, the drive gear meshing with a transition gear disposed on the connecting plate, and the transition gear meshing with the drive gear disposed on the connecting plate.

[0015] Based on the above technical solution, the technical effects that this utility model can achieve are as follows: This utility model discloses a manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform. The sliding block of the guide frame slidably engages within a sliding groove in the frame. The drive gear on the guide frame meshes with the rack surface of a cylindrical rack on the frame. In automatic mode, the rack surface of the cylindrical rack faces horizontally towards the drive gear, meshing with it. As the drive gear rotates, the sliding block, limited by the sliding groove, can only move horizontally within the groove, meaning the guide frame moves horizontally within the frame. When switching modes, the cylindrical rack rotates, causing the rack surface facing the drive gear to no longer face it, and the smooth surface of the cylindrical rack contacts the drive gear. When the drive module's drive gear no longer meshes with the rack face of the cylindrical rack, the drive module no longer interferes with the movement of the guide frame, and enters manual mode. The guide frame can be moved within the frame by hand. By rotating the cylindrical rack in the opposite direction, the rack face of the cylindrical rack will once again face the drive gear and mesh with it, returning to automatic mode. In summary, the manual / automatic dual-use drive device for the vehicle-mounted barrier-free guide platform of this utility model no longer uses a cable mechanism, avoiding the situation of cable breakage. This solves the technical problem of unreliable drive caused by easy damage to the cable mechanism in the drive device of the vehicle-mounted barrier-free guide platform in the prior art. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the drive gear of the manual / automatic dual-use drive device of the vehicle-mounted barrier-free guide platform of this utility model. Figure 2This is a schematic diagram of the manual / automatic dual-use drive device of the vehicle-mounted barrier-free guidance platform of this utility model in automatic mode; Figure 3 This is a schematic diagram of the manual / automatic dual-use drive device of the vehicle-mounted barrier-free guidance platform of this utility model in manual mode. Figure 4 This is a schematic diagram of the frame of this utility model; Figure 5 This is a schematic diagram of the sliding groove of the frame of this utility model.

[0017] In this utility model: 100-frame, 101-sliding groove; 200-guide frame, 201-sliding block, 202-crossbeam, 203-limiting protrusion, 204-second pressure block; 1-drive module, 11-connecting plate, 12-drive gear, 13-rotating pin, 14-first pressure block, 15-assembly pin, 16-stabilizing bolt, 17-motor, 171-drive gear, 18-transition gear; 2-elastic element; 3-cylindrical rack, 31-rack surface, 32-smooth surface, 33-fixing block, 34-end. Detailed Implementation

[0018] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] like Figure 1-5As shown, this utility model provides a manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform. The vehicle-mounted barrier-free guidance platform includes a frame 100 and a guide frame 200 configured within the frame 100 for horizontal movement. A sliding groove 101 is formed on the frame 100, and a sliding block 201 is slidably disposed within the sliding groove 101. The sliding block 201 is limited within the sliding groove 101 for horizontal movement. The sliding block 201 is fixedly connected to the guide frame 200. The manual / automatic dual-use drive device includes a drive module 1, an elastic element 2, and a cylindrical rack 3. The drive module 1 is mounted on the guide frame 200 and moves with the guide frame 200 within the frame 100. The drive module 1 includes a connecting plate 11 and a drive gear 12 horizontally disposed on the connecting plate 11. The connecting plate 11 is horizontally... The drive gear 12 is rotatably mounted on the guide frame 200. The elastic element 2 is disposed between the guide frame 200 and the connecting plate 11. Under the action of the elastic element 2, the drive gear 12 abuts against the cylindrical rack 3. The cylindrical rack 3 is rotatably mounted on the frame 100. The extension direction of the cylindrical rack 3 is the same as the movement direction of the guide frame 200. The outer wall of the cylindrical rack 3 is formed with a rack surface 31 and a smooth surface 32. The contact position between the cylindrical rack 3 and the drive gear 12 switches between the rack surface 31 and the smooth surface 32 as the cylindrical rack 3 rotates. When the drive gear 12 contacts and meshes with the rack surface 31, it is in automatic mode. When the cylindrical rack 3 is rotated, the cylindrical rack 3 overcomes the force of the elastic element 2 and causes the drive gear 12 to retract from the rack surface 31 and contact the smooth surface 32, thus entering manual mode.

[0020] In one specific embodiment of this utility model, the guide frame 200 is formed with a crossbeam 202 that is perpendicular to the cylindrical rack 3 in the horizontal direction, and the connecting plate 11 is connected to the crossbeam 202 near the cylindrical rack 3 by a rotating pin 13.

[0021] In one specific embodiment of this utility model, a limiting protrusion 203 extending in the vertical direction is formed on the crossbeam 202. When the connecting plate 11 rotates to the point where the drive gear 12 is furthest from the cylindrical rack 3, the connecting plate 11 abuts against the limiting protrusion 203 and is limited.

[0022] In a specific embodiment of this utility model, a first pressing block 14 extending vertically is mounted on the connecting plate 11. A horizontally extending mounting pin 15 is fixed on the first pressing block 14. The mounting pin 15 extends to the crossbeam 202 of the guide frame 200 and is inserted into a second pressing block 204 on the crossbeam 202. The second pressing block 204 is vertical, and the pin hole into which the mounting pin 15 is inserted is a horizontally extending elongated hole. An elastic member 2 is sleeved on the mounting pin 15, and the two ends of the elastic member 2 abut against the first pressing block 14 and the second pressing block 204, respectively.

[0023] In a specific embodiment of this utility model, a clearance hole is provided on the connecting plate 11, extending along the rotation direction of the connecting plate 11. The clearance hole is disposed between the rotating pin 13 and the first pressure block 14. After the stabilizing bolt 16 of the connecting plate 11 passes through the clearance hole, it stabilizes the connecting plate 11 on the crossbeam 202, thereby preventing the connecting plate 11 and the driving components on the connecting plate 11 from shaking in the vertical direction.

[0024] In one specific embodiment of the present invention, sliding grooves 101 are formed on both sides of the frame 100, and sliding blocks 201 are arranged in each sliding groove 101.

[0025] In order to make the guide frame 200 move more stably in the horizontal direction within the frame 100, there are two cylindrical racks 3. Each cylindrical rack 3 is equipped with an independent drive module 1 and an elastic element 2. Each cylindrical rack 3 is fitted with a sliding block 201, and the sliding block 201 is slidably engaged with the corresponding cylindrical rack 3.

[0026] In one specific embodiment of this utility model, both ends of the cylindrical rack 3 are provided with fixing blocks 33 fixed on the frame 100, and a sliding block 201 is provided between the two fixing blocks 33 to limit the sliding range of the sliding block 201.

[0027] In one specific embodiment of this utility model, the end of the cylindrical rack 3 is formed with a non-cylindrical end 34, and the end 34 protrudes from the fixing block 33, so that the cylindrical rack 3 can be rotated more conveniently through the end 34.

[0028] In a preferred embodiment of this utility model, the drive module 1 includes a motor 17, which includes a drive gear 171 driven by the drive shaft of the motor 17. The drive gear 171 meshes with a transition gear 18 disposed on the connecting plate 11, and the transition gear 18 meshes with a drive gear 12 disposed on the connecting plate 11. The meshing of multiple gears can adjust the gear ratio, and more importantly, can adjust the distance between the motor 17 and the cylindrical rack 3, so that the position of the motor 17 within the guide frame 200 can be better adjusted.

[0029] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A hand and automatic driving device for a barrier-free guiding platform for vehicles, characterized in that, The vehicle-mounted barrier-free guidance platform includes a frame (100) and a guide frame (200) configured within the frame (100) for horizontal movement. A sliding groove (101) is formed on the frame (100), and a sliding block (201) is slidably disposed within the sliding groove (101). The sliding block (201) is confined within the sliding groove (101) for horizontal movement. The sliding block (201) is fixedly connected to the guide frame (200). The manual / automatic dual-use drive device includes: A drive module (1) is mounted on a guide frame (200) and moves within a frame (100) along with the guide frame (200). The drive module (1) includes a connecting plate (11) and a drive gear (12) horizontally disposed on the connecting plate (11). The connecting plate (11) is rotatably disposed on the guide frame (200) in the horizontal direction. The elastic element (2) is disposed between the guide frame (200) and the connecting plate (11). Under the action of the elastic element (2), the drive gear (12) abuts against the cylindrical rack (3). A cylindrical rack (3) is rotatably mounted on the frame (100). The extension direction of the cylindrical rack (3) is the same as the movement direction of the guide frame (200). The outer wall of the cylindrical rack (3) is formed with a rack surface (31) and a smooth surface (32). The contact position between the cylindrical rack (3) and the drive gear (12) switches between the rack surface (31) and the smooth surface (32) as the cylindrical rack (3) rotates. When the drive gear (12) is in contact with the rack surface (31), it is in automatic mode. When the cylindrical rack (3) is rotated, the cylindrical rack (3) overcomes the force of the elastic element (2) and causes the drive gear (12) to retract from the rack surface (31) and contact the smooth surface (32), thereby entering manual mode.

2. The hands-free driving apparatus for the barrier-free guiding platform for vehicles according to claim 1, characterized in that, The guide frame (200) has a crossbeam (202) that is perpendicular to the cylindrical rack (3) in the horizontal direction. The connecting plate (11) is connected to the crossbeam (202) near the cylindrical rack (3) by a rotating pin (13).

3. The drive apparatus according to claim 2, wherein A limiting protrusion (203) extending in the vertical direction is formed on the crossbeam (202). When the connecting plate (11) rotates to the point where the drive gear (12) is furthest from the cylindrical rack (3), the connecting plate (11) abuts against the limiting protrusion (203) and is limited.

4. The drive apparatus according to claim 3, wherein The connecting plate (11) is equipped with a first pressure block (14) extending vertically. The first pressure block (14) is fixed with a horizontally extending assembly pin (15). The assembly pin (15) extends to the crossbeam (202) of the guide frame (200) and is inserted into a second pressure block (204) on the crossbeam (202). The second pressure block (204) is vertical, and the pin hole into which the assembly pin (15) is inserted is a horizontally extending elongated hole. The elastic element (2) is sleeved on the assembly pin (15), and the two ends of the elastic element (2) abut against the first pressure block (14) and the second pressure block (204) respectively.

5. The hands-free driving apparatus for the barrier-free guiding platform for vehicles according to claim 4, characterized in that, The connecting plate (11) has a clearance hole extending along the rotation direction of the connecting plate (11). The clearance hole is disposed between the rotating pin (13) and the first pressure block (14). The stabilizing bolt (16) of the connecting plate (11) passes through the clearance hole and stabilizes the connecting plate (11) on the crossbeam (202).

6. The hands-free driving apparatus for the barrier-free guiding platform for vehicles according to claim 5, characterized in that, The frame (100) has sliding grooves (101) on both sides, and the sliding blocks (201) are arranged in the sliding grooves (101).

7. The manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform according to claim 6, characterized in that, There are two cylindrical racks (3). Each cylindrical rack (3) is equipped with an independent drive module (1) and an elastic element (2). Each cylindrical rack (3) is fitted with a sliding block (201), and the sliding block (201) is slidably engaged with the corresponding cylindrical rack (3).

8. The manual / automatic dual-use drive device for the vehicle-mounted barrier-free guidance platform according to claim 7, characterized in that, Both ends of the cylindrical rack (3) are provided with fixing blocks (33) fixed on the frame (100), and the sliding block (201) is arranged between the two fixing blocks (33).

9. The manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform according to claim 8, characterized in that, The cylindrical rack (3) has a non-cylindrical end (34) at its end, and the end (34) protrudes from the fixing block (33).

10. The manual / automatic dual-use drive device for a vehicle-mounted barrier-free guidance platform according to claim 1, characterized in that, The drive module (1) includes a motor (17), the motor (17) including a drive gear (171) driven by the drive shaft of the motor (17), the drive gear (171) meshing with a transition gear (18) disposed on the connecting plate (11), the transition gear (18) meshing with the drive gear (12) disposed on the connecting plate (11).

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