Car moving device with telescopic clamping wheels

Abstract

The utility model provides a car moving device with a telescopic clamping wheel. The car moving device comprises an electric carrying forklift, a reinforcing supporting plate arranged at the front end of a fork arm and a clamping wheel mechanism installed on the reinforcing supporting plate. The wheel clamping mechanism comprises a front fixed wheel clamping shaft fixed to the front side of the reinforcing supporting plate and a rear fixed wheel clamping shaft fixed to the rear side of the reinforcing supporting plate. The telescopic clamping wheel bracket is in sliding connection with the reinforcing supporting plate through a sliding shaft; the rear telescopic clamping wheel shaft is axially and movably arranged in the telescopic bracket; and the hybrid linear stepping motor is used for driving the sliding shaft and the rear telescopic clamping wheel shaft to move synchronously. The vehicle moving device has the advantages of simplicity and convenience in operation, high automation degree, accurate positioning, strong bearing capacity and the like, can remarkably improve the vehicle moving efficiency and reduce the labor intensity of workers, is particularly suitable for places needing frequent vehicle moving such as parking lots and 4S stores, and solves the problems of low efficiency and potential safety hazards of a traditional vehicle moving mode.

Description

Technical Field

[0001] This utility model relates to a vehicle moving device with retractable clamping wheels. Background Technology

[0002] In existing parking lots and along roadsides, vehicles are often not parked as required, or sometimes they block passageways and need to be moved temporarily. If the driver can be contacted promptly, it's fine, but sometimes the driver cannot be reached or is unable to move the vehicle, which can obstruct traffic. If a vehicle-moving device were available, it would greatly simplify vehicle management and emergency response when the driver is unavailable. Utility Model Content

[0003] This invention provides a vehicle repositioning device with retractable clamping wheels, which can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows:

[0005] A vehicle maneuvering device with retractable clamping wheels, including

[0006] An electric pallet truck, a reinforcing support plate located at the front end of the fork arm, and a clamping wheel mechanism mounted on the reinforcing support plate;

[0007] The clamping wheel mechanism includes: a front fixed clamping wheel shaft fixed to the front side of the reinforcing support plate;

[0008] Telescopic clamping wheel bracket that is slidably connected to the reinforcing support plate via a sliding shaft;

[0009] A rear telescopic clamping wheel shaft that is axially movable within a telescopic bracket;

[0010] A hybrid linear stepper motor that drives the sliding shaft and the rear telescopic clamping wheel shaft to move synchronously.

[0011] A cable guide arm is arranged on the side of the reinforcing support plate to protect the control cables;

[0012] The sliding shaft and the sliding sleeve fixed on the reinforcing support plate form a sliding pair.

[0013] The beneficial effects of this utility model are:

[0014] (1) This utility model achieves fast, safe, and precise vehicle relocation through the coordinated operation of an electric pallet truck and a wheel clamping mechanism using a telescopic wheel clamping device. Its innovative wheel clamping mechanism includes a front fixed wheel clamping shaft and a rear telescopic wheel clamping shaft. A hybrid linear stepper motor synchronously drives the movement of the sliding shaft and the telescopic wheel clamping bracket, enabling the wheel clamping mechanism to automatically adapt to vehicles with different wheelbases. The precision sliding pair formed by the sliding shaft and the sliding sleeve ensures the smoothness and reliability of the mechanism's movement. The cable-stayed arm effectively protects the control cables, preventing wear during movement. The reinforced support plate provides a stable installation foundation for the entire mechanism. This device has advantages such as simple operation, high automation, accurate positioning, and strong load-bearing capacity. It can significantly improve vehicle relocation efficiency and reduce manual labor intensity. It is particularly suitable for parking lots, 4S shops, and other places where frequent vehicle relocation is required, solving the problems of low efficiency and safety hazards associated with traditional vehicle relocation methods. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a top view of the present invention.

[0017] Figure 2 This is a cross-sectional view (AA) of the present invention.

[0018] Figure 3 This is a P-direction view of the vehicle relocation device of this utility model.

[0019] Figure 4 This is a CC cross-sectional view of the present invention.

[0020] Figure 5 This is a side view of the present invention.

[0021] Figure 6 This is a front view of the present invention.

[0022] Explanation of icon numbers:

[0023] 10. Electric pallet truck; 20. Reinforced support plate; 30. Front fixed clamp wheel axle; 40. Telescopic clamp wheel bracket; 50. Sliding shaft; 60. Sliding sleeve; 70. Rear telescopic clamp wheel axle; 80. Sliding bearing; 90. Hybrid linear stepper motor; 100. Cable-threaded crank arm tube; 110. Protective cover; 120. Operating control device. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0025] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Reference Figures 1-6 As shown, a vehicle maneuvering device with retractable clamping wheels includes...

[0027] Electric pallet truck 10, reinforcing support plate 20 located at the front end of the fork arm, and clamping wheel mechanism mounted on reinforcing support plate 20;

[0028] The clamping wheel mechanism includes: a front fixed clamping wheel shaft 30 fixed to the front side of the reinforcing support plate 20; a telescopic clamping wheel bracket 40 slidably connected to the reinforcing support plate 20 via a sliding shaft 50; a rear telescopic clamping wheel shaft 70 axially movable within the telescopic bracket; a hybrid linear stepper motor 90 driving the sliding shaft 50 and the rear telescopic clamping wheel shaft 70 to move synchronously; a cable-passing crank tube 100 arranged on the side of the reinforcing support plate 20 for protecting control cables; wherein, the sliding shaft 50 and the sliding sleeve 60 fixed on the reinforcing support plate 20 form a sliding pair; the hybrid linear stepper motor 90 is connected to the sliding shaft 50 and the rear telescopic clamping wheel shaft 70 respectively via a coupling; it also includes a protective cover 110 covering the sliding shaft 50 and the hybrid linear stepper motor 90; wherein, the protective cover 110 is embedded with a PT100 temperature sensor, which automatically reduces the frequency when the temperature exceeds 80℃. It also includes a wheel track adaptive adjustment system, comprising: an ultrasonic sensor mounted on the side of the reinforcing support plate 20; a motor control module linked to the sensor; the control module automatically adjusts the stroke of the slide shaft 50 according to the sensor signal; and an operation control device 120 electrically connected to the hybrid linear stepper motor 90 is provided at the handle of the electric pallet truck 10.

[0029] In one embodiment, a control step for the retractable wheel-operated vehicle moving device is also included, the steps of which are as follows:

[0030] Step 1: Equipment Positioning

[0031] Push the electric pallet truck 10 to the front wheel position of the target vehicle, so that the front fixed clamp wheel axle 30 is close to the front side of the tire. The operation control device 120 starts the wheel track adaptive adjustment system, the ultrasonic sensor detects the wheel track and feeds the data back to the motor control module.

[0032] Step 2: Deploy the clamping wheel mechanism

[0033] The hybrid linear stepper motor 90 drives the sliding shaft 50 to extend outward, causing the telescopic clamping wheel bracket 40 to slide along the sliding sleeve 60 to a position 1.1 to 1.2 times the wheel track. After the motor continues to drive, the telescopic clamping wheel shaft 70 extends axially from inside the bracket until it is fully unfolded.

[0034] Step 3: Clamp the wheel

[0035] The control system reverses the telescopic clamping wheel bracket 40 to retract, so that the rear telescopic clamping wheel shaft 70 is in close contact with the rear side of the wheel. If the pressure sensor is set to detect the clamping force, it will stop retracting after reaching a preset value such as 500N~1200N.

[0036] Step 4: Lift the vehicle

[0037] Operate the electric pallet truck to lift the forks 10, so that the front wheels of the vehicle are off the ground, and the rear wheels are raised in sync with the pallet mover to ensure that the vehicle is stably suspended in the air.

[0038] Step 5: Move the vehicle

[0039] The manual pusher forklift 10 moves the vehicle to the target position. The wheel track adaptive system adjusts the travel of the sliding shaft 50 in real time to prevent the clamps from loosening.

[0040] Step Six: Release the vehicle

[0041] Lower the fork arm to bring the wheel to the ground, control the hybrid linear stepper motor 90 to first extend the telescopic clamping wheel bracket 40, then retract the telescopic clamping wheel shaft 70, and finally retract the entire clamping wheel mechanism.

[0042] Step Seven: Full-Process Security Monitoring

[0043] The PT100 temperature sensor monitors the motor temperature. When the temperature exceeds 80℃, it automatically reduces the frequency and triggers an alarm. The emergency stop button 122 can cut off the power supply at any time to prevent accidents.

[0044] The surface of the slide shaft 50 is provided with a self-lubricating coating, which is composed of a graphite and molybdenum disulfide composite material with a thickness of 0.1-0.3 mm.

[0045] In one embodiment, the self-lubricating coating can reduce the coefficient of friction (0.08~0.12), making the movement of the slide shaft 50 smoother and reducing the load on the hybrid linear stepper motor 90. At the same time, the graphite + molybdenum disulfide composite coating provides long-lasting self-lubrication, reducing maintenance needs and extending service life (≥50km sliding distance).

[0046] The telescopic clamp wheel bracket 40 features a hollow frame structure with intersecting reinforcing ribs inside. The thickness of these ribs is 1.2-1.5 times the thickness of the main body of the bracket. Through topology optimization design of the intersecting reinforcing ribs, a weight reduction of 30%-40% (compared to a solid structure) can be achieved while maintaining the overall frame rigidity. At the same time, the gradient design of the reinforcing rib thickness (1.2-1.5 times the main body thickness) forms the optimal force transmission path, increasing bending stiffness by more than 50%.

[0047] The reinforcing support plate 20 has a multi-layer composite structure, including: an upper aluminum alloy plate with a thickness of 5-8mm; a lower stainless steel plate with a thickness of 3-5mm; and a middle damping layer, which is a rubber-metal sandwich material.

[0048] In one embodiment, the sandwich structure of aluminum alloy + damping layer + stainless steel combines lightweight (aluminum alloy layer), vibration reduction and noise reduction (damping layer η≥0.3) and high strength (stainless steel layer); the constrained damping layer (rubber / aluminum foil laminate) effectively absorbs the impact vibration when the vehicle moves, reducing noise by more than 15dB(A); edge bolt reinforcement + structural adhesive bonding ensures tight bonding between layers, prevents delamination, and improves the overall load-bearing capacity.

[0049] Working principle: When a vehicle needs to be moved, the operator pushes the equipment to the front wheel position of the target vehicle, so that the front fixed clamping wheel axle 30, which is fixed to the front side of the reinforcing support plate 20, is close to the wheel. The operation control device 120 first starts the hybrid linear stepper motor 90, which drives the sliding shaft 50 through the coupling to drive the telescopic clamping wheel bracket 40 to extend outward along the sliding sleeve 60. After the bracket extends to the appropriate position, the motor continues to drive the rear telescopic clamping wheel axle 70 to extend outward from the bracket. When the rear clamping wheel axle is fully extended, the operation control device 120 reverses the operation to retract the telescopic clamping wheel bracket 40 until the rear telescopic clamping wheel is fully extended. The axle 70 is pressed against the other side of the wheel; at this time, the electric pallet truck 10 raises the height of the fork arm, lifting the front wheels of the vehicle off the ground. Simultaneously, the rear wheel mover lifts the rear wheels, allowing the entire device to be manually pushed to move the vehicle horizontally. Throughout the process, the cable-stayed boom tube 100 protects the control cable from moving, the wheel track adaptive adjustment system monitors the wheel track in real time through an ultrasonic sensor and automatically adjusts the clamping position, the composite structure of the reinforced support plate 20 and the reinforcing rib design of the telescopic clamping wheel bracket 40 ensure load-bearing strength, and the self-lubricating coating of the sliding shaft 50 ensures smooth sliding, achieving safe and reliable vehicle moving operations. In summary, this design uses electric control to reduce manual operation; a hybrid linear stepper motor 90 is used to achieve the telescopic and clamping of the clamping wheels, reducing the size of the moving equipment and making it more convenient.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle moving device with retractable clamping wheels, characterized in that, include An electric pallet truck (10), a reinforcing support plate (20) located at the front end of the fork arm, and a clamping wheel mechanism mounted on the reinforcing support plate (20); The clamping wheel mechanism includes: a front fixed clamping wheel shaft (30) fixed to the front side of the reinforcing support plate (20); Telescopic clamping wheel bracket (40) is slidably connected to the reinforcing support plate (20) via a sliding shaft (50); A rear telescopic clamping wheel shaft (70) is axially movable within the telescopic bracket; A hybrid linear stepper motor (90) that drives the sliding shaft (50) and the rear telescopic clamping wheel shaft (70) to move synchronously; A cable guide arm tube (100) is arranged on the side of the reinforcing support plate (20) to protect the control cable; The sliding shaft (50) and the sliding sleeve (60) fixed on the reinforcing support plate (20) form a sliding pair.

2. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, The hybrid linear stepper motor (90) is connected to the sliding shaft (50) and the rear telescopic clamping wheel shaft (70) via a coupling.

3. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, It also includes a protective housing (110) covering the slide shaft (50) and the hybrid linear stepper motor (90).

4. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, The electric pallet truck (10) is equipped with an operation control device (120) at the handlebars, which is electrically connected to the hybrid linear stepper motor (90).

5. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, The surface of the slide shaft (50) is provided with a self-lubricating coating, which is composed of a graphite and molybdenum disulfide composite material and has a thickness of 0.1-0.3 mm.

6. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, The telescopic clamp wheel bracket (40) is a hollow frame structure with cross-arranged reinforcing ribs inside. The thickness of the reinforcing ribs is 1.2-1.5 times the thickness of the bracket body.

7. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, The reinforcing support plate (20) is a multi-layer composite structure, including: The upper aluminum alloy plate has a thickness of 5-8mm; The lower layer is made of stainless steel sheet, with a thickness of 3-5mm; The intermediate damping layer is a rubber-metal sandwich material.

8. A vehicle moving device with retractable clamping wheels according to claim 1, characterized in that, It also includes a wheel track adaptive adjustment system, comprising: an ultrasonic sensor mounted on the side of the reinforcing support plate (20); a motor control module linked to the sensor; the control module automatically adjusts the stroke of the slide shaft (50) according to the sensor signal.

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