Lifting mechanism and car moving robot

Abstract

The utility model provides a lifting mechanism and a car moving robot, relates to the technical field of lifting equipment, and solves the technical problem that the lifting mechanism of the car moving robot for lifting a car is poor in structural stability. The lifting mechanism comprises a lifting driving device, a lead screw, a telescopic arm assembly and a horizontal guide rail, the lifting driving device is in transmission connection with the lead screw and used for driving the lead screw to rotate forwards or reversely, a rotating shaft part is arranged in the middle of the telescopic arm assembly, the lead screw is in threaded connection with the rotating shaft part, and the rotating shaft part is in sliding connection with the horizontal guide rail. When rotating, the screw rod can drive the telescopic arm assembly to extend or retract in the vertical direction with the rotating shaft part as the axis, and the rotating shaft part slides along the horizontal guide rail. The rotating shaft part slides along the horizontal guide rail while moving along the lead screw, so that the telescopic arm assembly is smoother during lifting and descending, the telescopic arm assembly is protected, and deformation of the telescopic arm assembly is prevented. And when the tray lifts the chassis of the accident vehicle, the accident vehicle can be stably lifted, and the stability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a lifting mechanism and a vehicle moving robot. Background Art

[0002] The research on the use of car-moving robots in the rescue of broken-down vehicles on traffic roads aims to solve the problem of quickly and safely moving broken-down vehicles to safe areas after vehicle breakdowns or accidents on traffic roads, thereby reducing traffic congestion and the risk of secondary accidents.

[0003] The car moving robots in the prior art all include a lifting mechanism, which is used to lift the accident car, thereby driving the accident car away from the accident scene.

[0004] The applicant has discovered that the prior art has at least the following technical problems: the lifting mechanism of the car moving robot in the prior art has poor structural stability. When the lifting mechanism lifts the accident vehicle and moves it under the drive of the car moving robot, there is a large shake, and it is difficult for the lifting mechanism to ensure structural stability. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting mechanism and a car moving robot to solve the technical problem in the prior art that the lifting mechanism of the car moving robot used to lift the vehicle has poor structural stability; the many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the utility model are detailed as follows.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The lifting mechanism provided by the utility model comprises a lifting drive device, a screw rod, a telescopic arm assembly and a horizontal guide rail, wherein:

[0008] The lifting drive device is transmission connected to the screw rod and is used to drive the screw rod to rotate forward or reverse. A rotating shaft portion is provided in the middle portion of the telescopic arm assembly. The screw rod is threadedly connected to the rotating shaft portion. The rotating shaft portion is slidingly connected to the horizontal guide rail. When the screw rod rotates, it can drive the telescopic arm assembly to extend or shorten in the vertical direction with the rotating shaft portion as the axis, and the rotating shaft portion slides along the horizontal guide rail.

[0009] Preferably, the horizontal guide rails are fixed to opposite sides of the telescopic arm assembly.

[0010] Preferably, the lifting mechanism further comprises a frame, the horizontal guide rail is located on the inner wall of the frame, and the screw rod is rotatably connected to the frame.

[0011] Preferably, the telescopic arm assembly comprises an upper arm assembly and a lower arm assembly, wherein:

[0012] The upper arm assembly and the lower arm assembly are rotatably connected via the rotating shaft, and a tray is connected to the top end of the upper arm assembly;

[0013] When the screw rod rotates forward or backward, the top end of the upper arm assembly and the bottom end of the lower arm assembly can move in the vertical direction and move away from or closer to each other, so that the telescopic arm assembly can be extended or shortened in the vertical direction with the rotating shaft as the axis.

[0014] Preferably, the telescopic arm assembly comprises a first upper arm, a second upper arm, a first lower arm and a second lower arm, wherein:

[0015] The rotating shaft portion includes a first shaft portion and a second shaft portion, the first upper arm and the first lower arm are rotatably connected via the first shaft portion, and the second upper arm and the second lower arm are rotatably connected via the second shaft portion;

[0016] The screw rod is threadedly connected to the first shaft portion and the second shaft portion. When the screw rod rotates in a forward or reverse direction, the first shaft portion and the second shaft portion can be driven to approach or move away from each other along the screw rod.

[0017] Preferably, a sliding block is fixedly connected to the first shaft portion and / or the second shaft portion, and the sliding block is slidably connected to the horizontal guide rail.

[0018] Preferably, the top end of the first upper arm and the top end of the second upper arm, and the bottom end of the first lower arm and the bottom end of the second lower arm are meshed with each other through gears.

[0019] Preferably, the lifting mechanism also includes a first nut portion and a second nut portion, the screw rod has two threaded segments with opposite thread rotation directions, the first nut portion and the second nut portion are threadedly connected to the two threaded segments respectively, the first nut portion is fixedly connected to the first shaft portion, and the second nut portion is fixedly connected to the second shaft portion.

[0020] Preferably, the lifting drive device is located beside the corresponding screw rod, and the lifting drive device is connected to the screw rod through a rack or belt transmission.

[0021] The utility model also provides a car moving robot, comprising a chassis, a tray and the above-mentioned lifting mechanism, wherein the lifting mechanism is located in the chassis, the upper end of the lifting mechanism is connected to the tray, and the tray is used to lift the chassis of the accident car.

[0022] The lifting mechanism and the vehicle moving robot provided by the present utility model have the following beneficial effects compared with the prior art: When the lifting drive device drives the lead screw to rotate forward or backward, the telescopic arm assembly extends or contracts in the vertical direction, and the rotating shaft part slides along the horizontal guide rail, increasing the strength, making the telescopic arm assembly more smooth during lifting and lowering, protecting the telescopic arm assembly, and preventing the telescopic arm assembly from deforming. It ensures that when the tray holds the chassis of the accident vehicle, the accident vehicle can be lifted and lowered stably, and improves the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is the internal structure schematic diagram of the vehicle moving robot after removing the tray;

[0025] Figure 2 is the structural schematic diagram of the lifting mechanism;

[0026] Figure 3 is the structural schematic diagram of the telescopic arm assembly.

[0027] Figure 4 is the overall structural schematic diagram of the vehicle moving robot in the initial state.

[0028] In the figure, 1, chassis; 2, tray; 3, lifting mechanism; 31, lifting drive device; 32, lead screw; 331, first upper arm; 332, second upper arm; 333, first lower arm; 334, second lower arm; 335, gear; 34, first shaft part; 35, second shaft part; 36, first nut part; 37, second nut part; 38, horizontal guide rail; 39, slider; 41, drive wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope protected by the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The embodiment of the present utility model provides a lifting mechanism and a vehicle moving robot, which protect the telescopic arm assembly, prevent the telescopic arm assembly from deforming, and improve the structural stability.

[0033] The following Figures 1-4 elaborates on the technical solution provided by the present utility model in more detail.

[0034] Embodiment 1:

[0035] The lifting mechanism 3 provided by the present utility model includes a lifting drive device 31, a lead screw 32, a telescopic arm assembly, and a horizontal guide rail 38. Among them: The lifting drive device 31 is in transmission connection with the lead screw 32 and is used to drive the lead screw 32 to rotate forward or backward. A rotating shaft part is arranged in the middle of the telescopic arm assembly. The lead screw 32 is in threaded connection with the rotating shaft part. The rotating shaft part is slidably connected to the horizontal guide rail 38. When the lead screw 32 rotates, it can drive the telescopic arm assembly to extend or shorten in the vertical direction with the rotating shaft part as the axis, and the rotating shaft part slides along the horizontal guide rail 38.

[0036] See Figures 1-3 As shown, the lifting drive device 31 is located beside the corresponding lead screw 32, and the lifting drive device 31 is in transmission connection with the lead screw 32 through a rack or a belt.

[0037] Specifically, the lifting drive device 31 in this embodiment can be a motor. The motor drives the lead screw 32 to rotate through a rack drive. The lifting drive device 31 can be located beside the telescopic arm assembly, reducing the length of the vehicle relocation robot and improving the structural stability.

[0038] For the lifting mechanism 3 in this embodiment, when the lifting drive device 31 drives the lead screw 32 to rotate forward or backward, the telescopic arm assembly extends or retracts in the vertical direction, and the rotating shaft portion slides along the horizontal guide rail 38, increasing the strength and making the telescopic arm assembly more smooth during lifting and lowering, protecting the telescopic arm assembly and preventing it from deforming. It ensures that when the tray 2 lifts the chassis 1 of the accident vehicle, the accident vehicle can be lifted and lowered stably, improving the structural stability.

[0039] The lifting mechanism 3 in this embodiment can be applied to a vehicle relocation robot. The lifting mechanism 3 is located inside the vehicle relocation robot and is used to lift the accident vehicle, thereby driving the accident vehicle to a safe position such as an emergency lane.

[0040] See Figure 2 As shown, the lifting mechanism 3 further includes a frame. The horizontal guide rail 38 is located on the inner wall of the frame, and the lead screw 32 is rotatably connected to the frame.

[0041] The frame supports the telescopic arm assembly, increasing the strength and making the telescopic arm assembly of the lifting mechanism 3 more smooth during lifting and lowering. At the same time, it protects the telescopic arm assembly and prevents it from deforming.

[0042] As an optional implementation manner, see Figure 2 As shown, the horizontal guide rails 38 are fixed on the opposite sides of the telescopic arm assembly.

[0043] The rotating shaft portion of the telescopic arm assembly can be slidably connected to the horizontal guide rails 38 on the opposite sides of the frame, further improving the structural stability and making the movement of the telescopic arm assembly more smooth.

[0044] As an optional implementation manner, see Figures 1-3 As shown, the telescopic arm assembly includes an upper arm assembly and a lower arm assembly. Specifically: the upper arm assembly and the lower arm assembly are rotatably connected through a rotating shaft portion, and the top of the upper arm assembly is connected with a tray 2; when the lead screw 32 rotates forward or backward, the top of the upper arm assembly and the bottom of the lower arm assembly can move in the vertical direction and move away from or close to each other, so that the telescopic arm assembly extends or retracts in the vertical direction with the rotating shaft portion as the axis.

[0045] Specifically, see Figures 1-3As shown in the figure, the telescopic arm assembly includes a first upper arm 331, a second upper arm 332, a first lower arm 333 and a second lower arm 334. That is, the upper arm assembly includes the first upper arm 331 and the second upper arm 332, and the lower arm assembly includes the first lower arm 333 and the second lower arm 334. Among them: the rotating shaft part includes a first shaft part 34 and a second shaft part 35. The first upper arm 331 and the first lower arm 333 are rotatably connected through the first shaft part 34, and the second upper arm 332 and the second lower arm 334 are rotatably connected through the second shaft part 35; the lead screw 32 is threadedly connected to the first shaft part 34 and the second shaft part 35. When the lead screw 32 rotates forward or backward, it can drive the first shaft part 34 and the second shaft part 35 to approach or move away from each other along the lead screw 32. See Figure 2 and Figure 3 As shown in the figure, the lifting mechanism 3 further includes a first nut part 36 and a second nut part 37. The lead screw 32 has two threaded sections with opposite thread directions. The first nut part 36 and the second nut part 37 are respectively threadedly connected to the two threaded sections. The first nut part 36 is fixedly connected to the first shaft part 34, and the second nut part 37 is fixedly connected to the second shaft part 35.

[0046] When the lead screw 32 rotates forward or backward driven by the lifting drive device 31, the first shaft part 34 and the second shaft part 35 move towards or away from each other along the lead screw 32, and the telescopic arm assembly extends or contracts in the vertical direction, so as to lift the accident vehicle or lower the tray 2 to the initial position.

[0047] The above structure makes the movement of the telescopic arm assembly smoother and improves the stability of the structure.

[0048] As an optional implementation manner, a slider 39 is fixedly connected to the first shaft part 34 and / or the second shaft part 35, and the slider 39 is slidably connected to the horizontal guide rail 38.

[0049] See Figures 1-3 As shown in the figure, in this embodiment, a slider 39 is fixedly connected to the first shaft part 34 and the second shaft part 35, and the slider 39 is slidably connected to the horizontal guide rail 38.

[0050] See Figure 2 and Figure 3 As shown in the figure, when the lead screw 32 rotates forward or backward driven by the lifting drive device 31, the first shaft part 34 and the second shaft part 35 move towards or away from each other along the lead screw 32, and the telescopic arm assembly extends or contracts in the vertical direction. Specifically, when the telescopic arm assembly extends in the vertical direction, the first shaft part 34 moves driven by the first nut part 36. Since the slider 39 is fixedly connected to the first shaft part 34, the first shaft part 34 slides along the horizontal guide rail 38, and the second shaft part 35 slides along the horizontal guide rail 38. The structure of the telescopic arm assembly is more stable during telescoping, preventing shaking, and ensuring that the accident vehicle can be lifted and lowered stably when the tray 2 holds the chassis 1 of the accident vehicle.

[0051] As an alternative embodiment, refer to Figure 2 and Figure 3 As shown, between the top ends of the first upper arm 331 and the second upper arm 332, and between the bottom ends of the first lower arm 333 and the second lower arm 334, they are engaged with each other through a gear 335.

[0052] In the above structure, the first upper arm 331 and the second upper arm 332, and the first lower arm 333 and the second lower arm 334 are engaged for transmission, improving the structural stability of the telescopic arm assembly.

[0053] Embodiment 2:

[0054] Refer to Figure 4 As shown, this embodiment provides a vehicle moving robot, including a chassis 1, a tray 2, and the above-mentioned lifting mechanism 3. The lifting mechanism 3 is located inside the chassis 1, and the upper end of the lifting mechanism 3 is connected to the tray 2. The tray 2 is used to lift the chassis 1 of the accident vehicle.

[0055] Refer to Figure 4 As shown, driving wheels 41 are provided at the end corners of the chassis 1. The driving wheels 41 can drive the chassis 1 to move forward, backward, and turn.

[0056] In this embodiment, the lifting mechanism 3 is located in the chassis 1, and its lifting end is rotatably connected to the tray 2. The lifting mechanism 3 can drive the tray 2 to rise, so that the tray 2 supports the vehicle chassis 1 and lifts the vehicle. The lifting mechanism 3 can drive the tray 2 to descend to the initial state. When in the initial state, the tray 2 covers the chassis 1 and closes the accommodation cavity, so that the chassis 1 and the tray 2 form a housing structure.

[0057] The vehicle moving robot of this embodiment can smoothly drill under various accident vehicles and can also be used for vehicles with a lower chassis 1. The lifting mechanism 3 drives the tray 2 to rise, and the tray 2 supports the vehicle chassis 1 and lifts the vehicle. By the way of the tray 2 supporting the vehicle chassis 1, compared with the way of lifting the vehicle tires, the structure is more stable, and the tray 2 can stably lift the accident vehicle.

[0058] In the description of this specification, specific features, structures, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0059] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A lifting mechanism, characterized in that: It includes a lifting drive device, a lead screw, a telescopic arm assembly and a horizontal guide rail, wherein: The lifting drive device is transmission connected to the screw rod and is used to drive the screw rod to rotate forward or reverse. A rotating shaft portion is provided in the middle portion of the telescopic arm assembly. The screw rod is threadedly connected to the rotating shaft portion. The rotating shaft portion is slidingly connected to the horizontal guide rail. When the screw rod rotates, it can drive the telescopic arm assembly to extend or shorten in the vertical direction with the rotating shaft portion as the axis, and the rotating shaft portion slides along the horizontal guide rail.

2. The lifting mechanism according to claim 1, characterized in that: The horizontal guide rails are fixed to opposite sides of the telescopic arm assembly.

3. The lifting mechanism according to claim 1, characterized in that: The lifting mechanism also includes a frame, the horizontal guide rail is located on the inner wall of the frame, and the screw rod is rotatably connected to the frame.

4. The lifting mechanism according to claim 1, characterized in that: The telescopic arm assembly comprises an upper arm assembly and a lower arm assembly, wherein: The upper arm assembly and the lower arm assembly are rotatably connected via the rotating shaft, and a tray is connected to the top end of the upper arm assembly; When the screw rod rotates forward or backward, the top end of the upper arm assembly and the bottom end of the lower arm assembly can move in the vertical direction and move away from or closer to each other, so that the telescopic arm assembly can be extended or shortened in the vertical direction with the rotating shaft as the axis.

5. The lifting mechanism according to claim 1 or 4, characterized in that: The telescopic arm assembly comprises a first upper arm, a second upper arm, a first lower arm and a second lower arm, wherein: The rotating shaft portion includes a first shaft portion and a second shaft portion, the first upper arm and the first lower arm are rotatably connected via the first shaft portion, and the second upper arm and the second lower arm are rotatably connected via the second shaft portion; The screw rod is threadedly connected to the first shaft portion and the second shaft portion. When the screw rod rotates in a forward or reverse direction, the first shaft portion and the second shaft portion can be driven to approach or move away from each other along the screw rod.

6. The lifting mechanism according to claim 5, characterized in that: A sliding block is fixedly connected to the first shaft portion and / or the second shaft portion, and the sliding block is slidably connected to the horizontal guide rail.

7. The lifting mechanism according to claim 5, characterized in that: The top end of the first upper arm and the top end of the second upper arm, and the bottom end of the first lower arm and the bottom end of the second lower arm are meshed with each other through gears.

8. The lifting mechanism according to claim 5, characterized in that: The lifting mechanism also includes a first nut portion and a second nut portion. The screw rod has two threaded sections with opposite thread rotation directions. The first nut portion and the second nut portion are threadedly connected to the two threaded sections respectively. The first nut portion is fixedly connected to the first shaft portion, and the second nut portion is fixedly connected to the second shaft portion.

9. The lifting mechanism according to claim 1, characterized in that: The lifting drive device is located beside the corresponding screw rod, and the lifting drive device is connected to the screw rod through a rack or belt transmission.

10. A car moving robot, characterized in that: It comprises a chassis, a tray and the lifting mechanism according to any one of claims 1 to 9, wherein the lifting mechanism is located in the chassis, the upper end of the lifting mechanism is connected to the tray, and the tray is used to lift the chassis of the accident vehicle.

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