Autonomous following type scissor platform

Abstract

The utility model discloses an autonomous following type scissor platform which comprises a vehicle body capable of autonomously following a worker to advance, the top of the vehicle body is provided with a scissor frame capable of stretching up and down, the top of the scissor frame is provided with a working platform, and the front side and the rear side of the vehicle body are provided with connecting levers which extend downwards towards the front side and the rear side of the vehicle body and can be overturned up and down. A transverse bar is arranged at the end of the connecting bar in the left-right side direction of the trolley body, and rolling wheels are arranged on the transverse bar and correspond to the two sides of the connecting bar. The utility model has the characteristics that the front side and the rear side of the vehicle body can be instantly supported when a worker autonomously follows, and the contact area between the vehicle body and the ground is increased, so that the scissor platform is prevented from tipping over, and the advancing stability of the scissor platform during autonomously following is ensured, and the like.

Description

Technical Field

[0001] This utility model relates to a scissor lift platform, specifically an autonomous following scissor lift platform. Background Technology

[0002] In scenarios such as construction and logistics warehousing, existing technology allows workers to have a scissor lift platform autonomously follow them during movement, eliminating the need to stop their work to manually move the platform each time. This saves time, streamlines workflows, and enables more tasks to be completed in less time. For tasks requiring frequent movement of the scissor lift platform, manually pushing or driving it consumes a significant amount of physical energy. The automatic following function eliminates the need for workers to physically move the platform.

[0003] However, if the work site is uneven, has potholes or bumps, it may affect the platform's stability and following accuracy, or even cause the platform to malfunction. In some sloping areas, due to the height of the scissor lift platform, it may tip over or over during autonomous following, which could damage the platform or even injure workers. Utility Model Content

[0004] The purpose of this invention is to provide an autonomous following scissor lift platform that solves the problems of easy forward and backward tipping in the existing technology.

[0005] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: an autonomous following scissor lift platform, including a vehicle body that can autonomously follow the worker's movement, a scissor lift frame that can extend and retract vertically on the top of the vehicle body, a working platform on the top of the scissor lift frame, connecting bars that extend downward toward the front and rear sides of the vehicle body and can be flipped up and down on both sides of the vehicle body, and a horizontal bar that is set along the left and right sides of the vehicle body at the end of the connecting bar, with rollers on both sides of the horizontal bar corresponding to the connecting bar.

[0006] As a further preferred technical solution of this utility model; the connecting bar includes a connecting part connected to the crossbar and a driving part extending into the vehicle body in an arc shape. The front and rear sides of the vehicle body are provided with movable cavities for the moving of the connecting bar. The top side of the movable cavity is provided with an arc-shaped wall that corresponds to the arc-shaped trajectory of the driving part and is slidably connected to the driving part.

[0007] As a further preferred technical solution of this utility model, the arc-shaped wall is provided with a T-shaped groove arranged along the arc-shaped trajectory of the driving part, and the top of the outer side of the driving part is provided with a T-shaped slider that cooperates with the T-shaped groove and is partially arranged, and the length of the T-shaped groove is greater than the length of the T-shaped slider.

[0008] As a further preferred technical solution of this utility model; the inner curved side of the drive unit is provided with a rack assembly arranged along the arc trajectory of the drive unit, the middle part of the movable cavity is provided with a first transmission gear meshing with the rack assembly, the adjacent side of the first transmission gear is provided with a second transmission gear meshing with the first transmission gear, and the side wall of the movable cavity is provided with a drive motor for driving the second transmission gear to rotate.

[0009] As a further preferred technical solution of this utility model, the outer end of the connecting rod is rotatably connected to the crossbar via a rotating bearing, and a torsion spring is provided between the connecting rod and the crossbar.

[0010] As a further preferred technical solution of this utility model, both ends of the crossbar are provided with straight rods that are parallel to each other and arranged along the front and rear sides of the vehicle body.

[0011] Therefore, this utility model has the characteristics of instantly increasing the front and rear side support of the vehicle body when the staff follows autonomously, increasing the contact area between the vehicle body and the ground, so as to avoid the scissor lift platform from tipping over and ensure the stability of the scissor lift platform when it follows autonomously. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Structural sectional view;

[0014] Figure 3 yes Figure 1 Partial structural cross-sectional view.

[0015] Reference numerals: vehicle body-1, movable cavity-11, curved wall-111, T-shaped slide-112, scissor lift-2, working platform-3, connecting bar-4, connecting part-41, drive part-42, T-shaped slider-421, rack and pinion assembly-422, rotating bearing-43, torsion spring-44, crossbar-5, roller-51, straight rod-52, first transmission gear-12, second transmission gear-13, drive motor-14. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] like Figure 1-2As shown, an autonomous following scissor lift platform includes a vehicle body 1 that can autonomously follow the worker's movement. The top of the vehicle body 1 is equipped with a vertically retractable scissor lift 2, and a working platform 3 is located on top of the scissor lift 2. Connecting bars 4, extending downwards towards the front and rear sides of the vehicle body 1 and capable of vertical rotation, are provided. The ends of the connecting bars 4 are equipped with crossbars 5 positioned along the left and right sides of the vehicle body 1. The connecting bars 4, along with the crossbars 5, can rotate vertically relative to the vehicle body 1, allowing them to be retracted during normal movement to avoid interfering with the normal movement of the scissor lift platform. Rollers 51 are provided on both sides of the crossbars 5 corresponding to the connecting bars 4. The wheel 51 is designed so that when the scissor lift platform is about to tip over, the connecting bar 4 can be automatically driven to tilt downwards, thereby driving the roller 51 to tilt downwards and contact the ground through the crossbar 5. This increases the contact area between the bottom of the vehicle body 1 and the ground, maintaining the stability of the vehicle body 1 when it follows autonomously, thus preventing the scissor lift platform from tipping over. Both ends of the crossbar 5 are provided with parallel straight rods 52 that are set along the front and rear sides of the vehicle body 1. The two straight rods 52 are parallel to each other on both sides of the vehicle body 1 and can play a lateral support role when the scissor lift platform accidentally tilts to the side, thereby preventing the scissor lift platform from tilting to the side and enhancing the stability of the scissor lift platform when it follows autonomously.

[0018] like Figure 2-3 As shown, the connecting bar 4 includes a connecting part 41 connected to the crossbar 5 and a driving part 42 extending arc-shaped into the vehicle body 1. The front and rear sides of the vehicle body 1 are provided with movable cavities 11 for the connecting bar 4 to move. The top side of the movable cavity 11 is provided with an arc-shaped wall 111 corresponding to the arc-shaped trajectory of the driving part 42 and slidably connected to the driving part 42. The connecting part 41 is located on the outside of the vehicle body 1, connected to the crossbar 5, and can support and fix the crossbar 5 and the roller 51, and drive the crossbar 5 and the roller 51 to rotate up and down. The driving part 42 is located inside the movable cavity 11 and can move along the arc-shaped trajectory within the movable cavity 11, thereby driving the connecting part 41 and the crossbar 5 to rotate up and down. The arc-shaped wall 111 is provided with a section along the driving part 41. The T-shaped groove 112 with an arc-shaped trajectory is provided. The top outer side of the drive unit 42 is provided with a T-shaped slider 421 that cooperates with the T-shaped groove 112 and is partially provided. The T-shaped slider 421 is located on the outer side of the partial bend of the drive unit 42. The connecting rod 4 can be fixed to the arc-shaped wall 111 of the movable cavity 11 by the connection between the T-shaped slider 421 and the T-shaped groove 112, and the connecting rod 4 can move along the arc-shaped wall 111 to control the flipping action of the crossbar 5. The length of the T-shaped groove 112 is greater than the length of the T-shaped slider 421, providing the T-shaped slider 421 with room for movement, so that the T-shaped slider 421 can move within the T-shaped groove 112 to drive and support the smooth sliding of the connecting rod 4.

[0019] like Figure 2-3As shown, the inner curved side of the drive unit 42 is provided with a rack assembly 422 arranged along the arc trajectory of the drive unit 42. The middle of the movable cavity 11 is provided with a first transmission gear 12 that meshes with the rack assembly 422. Adjacent to the first transmission gear 12 is a second transmission gear 13 that meshes with the first transmission gear 12. The side wall of the movable cavity 11 is provided with a drive motor 14 for driving the second transmission gear 13 to rotate. The drive motor 14 is provided so that when the vehicle body 1 senses that a rollover is about to occur, the drive motor 14 can be activated. The output shaft of the drive motor 14 is coaxially connected with the second transmission gear 13, so that the drive motor 14 can drive the second transmission gear 13 to rotate, and then drive the first transmission gear 12 to rotate in sequence, thereby driving the rack assembly 422 on the inner curved side of the drive unit 42. This causes the drive unit 42 to move along the arc wall 111 with the connecting part 41, thereby driving the crossbar 5 and the roller 51 to flip up and down, thus achieving timely anti-rollover support for the scissor lift platform.

[0020] like Figure 1-2 As shown, the outer end of the connecting bar 4 is rotatably connected to the crossbar 5 via a rotating bearing 43. A torsion spring 44 is provided between the connecting bar 4 and the crossbar 5. The end of the connecting bar 4 is connected to the crossbar 5 via the rotating bearing 43, allowing the crossbar 5 to rotate relative to the connecting bar 4. This allows the crossbar 5 and the roller 51 to adapt to the steering angle of the vehicle body 1 when the vehicle body 1 turns, avoiding resistance interference from the crossbar 5 and the roller 51 on the steering of the vehicle body 1, making the steering of the vehicle body 1 smoother. One end of the torsion spring 44 is connected to the side wall of the connecting part 41 of the connecting bar 4, and the other end of the torsion spring 44 is connected to... The slewing bearing 43 is connected so that when the vehicle body 1 turns and is on a slope, the crossbar 5 can adapt to the turning of the vehicle body 1 through the slewing bearing 43, and the rotation amplitude of the crossbar 5 is limited by the setting of the torsion spring 44 to avoid the crossbar 5 and roller 51 turning too much, which would cause the vehicle body 1 to lose complete control of the turning, thus enhancing the stability of the vehicle body 1 when turning. When the vehicle body 1 is not turning and is on a slope, the torsion spring 44 can keep the crossbar 5 and roller 51 in a stable state, preventing the crossbar 5 from rotating relative to the connecting bar 4, which would interfere with the normal movement of the vehicle body 1 and ensure the accurate and stable direction when the scissor lift platform follows autonomously.

[0021] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A self-following scissor lift platform, comprising a vehicle body (1) capable of autonomously following the worker, wherein the top of the vehicle body (1) is provided with a vertically extendable scissor lift (2), and the top of the scissor lift (2) is provided with a working platform (3), characterized in that: The front and rear sides of the vehicle body (1) are provided with connecting bars (4) that extend downward toward the front and rear sides of the vehicle body (1) and can be flipped up and down. The end of the connecting bar (4) is provided with a horizontal bar (5) arranged along the left and right sides of the vehicle body (1). Rollers (51) are provided on the horizontal bar (5) corresponding to both sides of the connecting bar (4).

2. The autonomous following scissor lift platform according to claim 1, characterized in that: The connecting bar (4) includes a connecting part (41) connected to the crossbar (5) and a driving part (42) extending in an arc shape into the vehicle body (1). The front and rear sides of the vehicle body (1) are provided with movable cavities (11) for the connecting bar (4) to move. The top side of the movable cavity (11) is provided with an arc-shaped wall (111) that corresponds to the arc-shaped trajectory of the driving part (42) and is slidably connected to the driving part (42).

3. The autonomous following scissor lift platform according to claim 2, characterized in that: The arc-shaped wall (111) is provided with a T-shaped groove (112) arranged along the arc-shaped trajectory of the drive part (42). The top of the outer side of the drive part (42) is provided with a T-shaped slider (421) that cooperates with the T-shaped groove (112) and is partially arranged. The length of the T-shaped groove (112) is greater than the length of the T-shaped slider (421).

4. The autonomous following scissor lift platform according to claim 2, characterized in that: The inner curved side of the drive unit (42) is provided with a rack assembly (422) arranged along the arc trajectory of the drive unit (42). The middle part of the movable cavity (11) is provided with a first transmission gear (12) that meshes with the rack assembly (422). The adjacent side of the first transmission gear (12) is provided with a second transmission gear (13) that meshes with the first transmission gear (12). The side wall of the movable cavity (11) is provided with a drive motor (14) for driving the second transmission gear (13) to rotate.

5. The autonomous following scissor lift platform according to claim 1, characterized in that: The outer end of the connecting rod (4) is rotatably connected to the crossbar (5) via a rotating bearing (43), and a torsion spring (44) is provided between the connecting rod (4) and the crossbar (5).

6. The autonomous following scissor lift platform according to claim 1, characterized in that: Both ends of the crossbar (5) are provided with straight rods (52) that are parallel to each other and arranged along the front and rear sides of the vehicle body (1).

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