Self-locking type anti-displacement wheel stop block device and control method

Abstract

The invention provides a self-locking type anti-displacement wheel stop block device and a control method, and the self-locking type anti-displacement wheel stop block device comprises a supporting part, a driving part and a control part, the supporting part is internally provided with a containing cavity, and the containing cavity is internally provided with an electric device; the stopping block is located above the supporting piece, the stopping block is connected with the electric device, the stopping block is provided with a locking face, a first included angle is formed between the locking face and the horizontal direction, a V-shaped opening is formed in the locking face, and the opening end of the V-shaped opening is flush with the lower edge of the locking face; wherein the electric device is used for driving the check block to be located at preset working positions, the number of the working positions is multiple, and the heights of the working positions are different. The problems that in the prior art, a traditional check block is prone to sliding under the inertia effect of a vehicle and poor in universality are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile safety auxiliary equipment, in particular to a self-locking anti-displacement wheel block device and control method. BACKGROUND

[0002] In the field of vehicle transportation and fixing, traditional methods often rely on rubber or plastic blocks to limit the movement of vehicles. These blocks mainly rely on the friction between them and the ground or tires to achieve temporary braking of the vehicle, especially during loading and unloading, short stops or maintenance, they play an important role. However, with the development of industrial technology and the improvement of safety standards, traditional wheel block devices gradually expose some obvious limitations and problems.

[0003] 1. Block easy to displace: under the action of vehicle inertia during loading and unloading or driving, especially slight movement of the vehicle, traditional blocks are prone to slip from the predetermined position due to the lack of effective self-locking mechanism, which not only reduces the fixing effect, but also may cause damage to the vehicle, even cause safety accidents.

[0004] 2. Poor reliability of fixing measures: due to the risk of block movement, it is often necessary to use straps or other fixing equipment to enhance the stability of the block during transportation. The use of multiple measures increases the complexity and time consumption of operation, and also increases the cost, especially in large-scale logistics operations.

[0005] 3. Limited adaptability: the market has a variety of vehicle tire sizes, while the design of traditional blocks is often fixed and does not have enough flexibility to adapt to different widths of tires. This means that when faced with non-standardized tire sizes, the scope of application of the block is limited, and it may be necessary to customize or prepare multiple specifications of blocks, further increasing the burden of the logistics industry.

[0006] 4. Short service life: traditional blocks, especially those made of soft materials such as rubber or plastic, have a relatively short service life due to repeated impact and wear during vehicle loading and parking, and need to be replaced frequently, which undoubtedly increases maintenance costs and management difficulty.

[0007] There is no effective solution to the above problems. SUMMARY

[0008] The main purpose of the present application is to provide a self-locking anti-displacement wheel block device and control method to solve the problem of easy sliding of traditional blocks under the action of vehicle inertia and poor universality in the prior art.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a self-locking anti-shifting wheel block device is provided, which comprises: a support, the support having a receiving cavity therein, and an electric device being arranged in the receiving cavity; a block, the block being arranged above the support and being connected with the electric device, the block having a locking surface, the locking surface being arranged at a first included angle with a horizontal direction, and a V-shaped opening being arranged on the locking surface, the opening end of the V-shaped opening being flush with the lower edge of the locking surface; wherein the electric device is used to drive the block to be located at a preset working position, wherein the working position is multiple, and the height of each working position is arranged differently.

[0010] Further, the self-locking anti-shifting wheel block device further comprises: an anti-skid member, the anti-skid member having a avoiding position inside the receiving cavity, and the anti-skid member having a working position arranged protruding out of the receiving cavity and above the bottom surface of the support.

[0011] According to one aspect of the present application, a control method of a self-locking anti-shifting wheel block device is provided, the control method being executed by the wheel block device, comprising: acquiring parameter information and real-time position information of a target tire under the condition that the vehicle is in a parking working condition, the parameter information including width size and diameter size; based on the real-time position information of the target tire, controlling the wheel block device to move to a specified blocking position in front of the target tire; based on the parameter information of the tire, controlling the electric device of the block of the wheel block device to adjust the block to a preset height to match the tread height of the target tire; under the condition that the target tire is located in the V-shaped opening arranged on the block, controlling the wheel block device to stop moving.

[0012] Further, the acquiring of the parameter information and the real-time position information of the target tire comprises: acquiring image information and real-time position information of the target tire based on a visual sensor or a camera; processing the image information based on an image recognition algorithm to obtain the parameter information of the target tire, and calculating the relative distance between the target tire and the block.

[0013] Further, the moving of the wheel block device to the specified blocking position in front of the target tire based on the real-time position information of the target tire comprises: acquiring position information of the wheel block device; based on the real-time position information of the target tire and the position information of the wheel block device, calculating the relative distance between the target tire and the wheel block device, and generating a moving path.

[0014] Further, the controlling of the electric device of the block of the wheel block device to adjust the block to a preset height based on the parameter information of the tire comprises: obtaining a target lifting height of the block based on the width size of the target tire; driving the electric device to adjust the center of the V-shaped opening on the block to be consistent with the center line height of the tread of the target tire.

[0015] Further, in the case of confirming that the target tire is located in the V-shaped opening formed in the block, the control of the wheel block device to stop moving comprises: obtaining the extrusion force of the target tire on the block based on the pressure sensor; when the extrusion force is less than a first preset pressure, the V-shaped opening generates a reverse force, and the wheel block device is controlled to stop moving.

[0016] Further, when the extrusion force exceeds the first preset pressure, the anti-skid piece under the block is controlled to extend, and the anti-skid piece is engaged with the ground to provide additional friction.

[0017] Further, the control method further comprises: obtaining a starting instruction of the vehicle, and controlling the block to descend to a safe height; and controlling the wheel block device to move away from the area where the target tire is located.

[0018] Further, the control method further comprises: obtaining the running state and power value of the electric device; and in the case of determining that the power value of the electric device is lower than a preset starting power value or in the case of determining that the electric device has a fault, an alarm signal is sent to the operator.

[0019] The technical scheme of the present application, through the inclined surface self-locking mechanical design and the V-shaped opening width self-adaptive structure, significantly improves the stability and safety of the vehicle when parking. The electric device can drive the block to a plurality of preset working positions, and the height of these positions is preset to meet the needs of various vehicle parking scenes, making the use of the device more flexible and convenient, and the tire width range is wide, and the service life is long. The present application solves the problem of easy sliding of the traditional block under the action of vehicle inertia and poor universality in the prior art. Compared with the traditional fixed device, the self-locking anti-displacement wheel block device improves the fixing efficiency, reduces the dependence on auxiliary fixing materials such as straps, reduces the overall cost, and is simple to operate, without the need for tools to assist, and a single person can quickly complete the placement and removal of the block. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0021] Figure 1 The structure schematic diagram of the embodiment of the self-locking anti-displacement wheel block device according to the present application is shown;

[0022] Figure 2 The flowchart of the embodiment of the control method of the self-locking anti-displacement wheel block device according to the present application is shown.

[0023] Among them, the above drawings include the following reference signs:

[0024] 10, block;

[0025] 20, support member;

[0026] 30, electric device;

[0027] 40, V-shaped opening;

[0028] 50, anti-skid member. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0031] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged as appropriate, so that the embodiments of the present application described herein can be implemented, for example, in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such a process, method, product, or apparatus.

[0032] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms, and should not be interpreted as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided in order to make the present disclosure complete and comprehensive, and to adequately convey the ideas of these exemplary embodiments to those of ordinary skill in the art. In the drawings, the thickness of layers and regions can be exaggerated for clarity, and the same reference numerals are used to denote the same elements, so that a description thereof will be omitted.

[0033] In conjunction with Figure 1 As shown, according to specific embodiments of the present application, a self-locking anti-shift wheel block device is provided.

[0034] As Figure 1 shown in the drawings, the self-locking anti-shifting wheel block device comprises a support 20, the support 20 has a containing cavity inside, and an electric device 30 is arranged in the containing cavity; a block 10 is arranged above the support 20, the block 10 is connected with the electric device 30, the block 10 has a locking surface, the locking surface is arranged at a first included angle with the horizontal direction, a V-shaped opening 40 is arranged on the locking surface, and the opening end of the V-shaped opening 40 is arranged flush with the lower edge of the locking surface; wherein the electric device 30 is used for driving the block 10 to be located at a preset working position, wherein the working position is multiple, and the heights of the working positions are arranged differently.

[0035] Optionally, in the embodiment, the block 10 is made of nylon + 30% glass fiber injection molding, and the high hardness and toughness of the material ensure the durability of the block and the effective blocking of the wheel.

[0036] In another specific embodiment, the block 10 is made of polyurethane material.

[0037] The locking surface of the block 10 is at a first included angle with the horizontal direction, and the angle design (for example, 15°) ensures that the block can be automatically locked when the vehicle is moving forward, preventing it from being displaced under the action of the tire.

[0038] The two ends of the V-shaped opening are flush with the lower edge of the locking surface, and the opening design can adapt to tires of different widths, so that the block can fit and fix a wider range of vehicle types without additional adjustment. In this embodiment, the V-shaped opening can accommodate tires with a width of 180-300mm, improving the versatility of the wheel block device.

[0039] The support 20 not only provides a stable mounting basis for the block 10, but also provides protection and installation space for the electric device 30 inside the containing cavity, ensuring the structural stability of the entire device and the safe operation of the electric device. The support 20 can be made of metal or high-strength composite material, and the design takes into account durability and protection of the electric device from external impact.

[0040] The electric device 30 can drive the block 10 to move vertically to different working positions through the integrated motor and lifting mechanism, and each working position corresponds to a different height setting to adapt to tires of different diameters. The electric device 30 is embedded with sensors and microprocessors, which can automatically adjust the height of the block 10 according to the wheel size parameters, ensuring that the block can be accurately positioned in front of the tire, while having an intelligent judgment mechanism to prevent the block from being too high to affect normal driving of the vehicle.

[0041] Optionally, the side of the support 20 in contact with the ground can be provided with a non-slip layer made of rubber material, which can further increase the friction between the block device and the ground.

[0042] The technical scheme of the present application, through the inclined surface self-locking mechanical design and the V-shaped opening 40 width self-adaptive structure, significantly improves the stability and safety of the vehicle when parking. The electric device can drive the stop block to a plurality of preset working positions, and the height of these positions is preset to meet the needs of various vehicle parking scenes, making the use of the device more flexible and convenient, suitable for a wide range of tire widths, and has a long service life. The present application solves the problem of easy sliding of the traditional stop block under the action of vehicle inertia and poor universality in the prior art. Compared with the traditional fixed device, the self-locking anti-displacement wheel stop block device improves the fixing efficiency, reduces the dependence on auxiliary fixing materials such as straps, reduces the overall cost, and is simple to operate, without the need for tools to assist, and a single person can quickly complete the placement and removal of the stop block.

[0043] Specifically, the self-locking anti-displacement wheel stop block device further comprises: a skid-resistant piece 50, which has a retreat position inside the accommodating cavity, and the skid-resistant piece 50 has a working position protruding from the bottom surface of the supporting piece 20. The design of the skid-resistant piece 50 aims to improve the grip of the stop block device on various road conditions, especially on wet or rough ground conditions, to ensure that the self-locking anti-displacement wheel stop block device will not displace due to insufficient ground friction, thereby ensuring the safety of the vehicle parking. The dynamic adjustment mechanism of the skid-resistant piece 50 ensures the stability of the device under different terrain and use conditions, improving the overall safety and reliability.

[0044] Optionally, the skid-resistant piece 50 can also be designed to be permanently fixed in the working position.

[0045] The skid-resistant piece 50 protrudes from the bottom surface of the supporting piece 20 in the working position, and the protruding part can deeply enter the gap of the ground, such as uneven ground like gravel road and grassland, forming mechanical fitting, effectively preventing the lateral sliding of the device as a whole. In addition, the surface of the skid-resistant piece 50 can be designed with rough texture or anti-skid nails to further improve the friction and ensure stable grip effect on the slippery road.

[0046] In this embodiment, the skid-resistant piece 50 is usually made of high-hardness and high-wear-resistant materials, such as 65Mn spring steel, hard alloy or special rubber formula. The skid-resistant piece 50 has a plurality of skid-resistant claw units that can be independently adjusted or collectively extended, and these units can automatically adjust the posture when extended to the working position according to the ground conditions, to ensure the maximum contact surface and friction.

[0047] In a specific embodiment, the stop block 10 can be designed to be 400mm long and 150mm high, and this type of stop block is suitable for passenger cars, SUVs and other passenger cars, and can withstand an impact force of 2 tons per single.

[0048] In another specific embodiment, the stop block 10 can be designed to be 600mm long and 2000mm high, and this type of stop block is suitable for light trucks.

[0049] According to another aspect of the present application, as shown in the accompanying drawings, a control method of a self-locking anti-shifting wheel block device is provided, the control method is executed by the wheel block device described above, comprising: Figure 2

[0050] Step S102, confirming that the vehicle is in a parking condition, obtaining the parameter information and real-time position information of the target tire, the parameter information including width size and diameter size;

[0051] Step S102 uses sensors, cameras or RFID technology to scan and identify the target vehicle's tires, obtaining the width size and diameter size of the tires. These information is used for subsequent adjustment of the block to the optimal position and height to adapt to different sizes of tires. Through the vehicle's own positioning system, ground sensing device or visual recognition technology, the real-time position of the target tire is accurately determined. This step ensures that the block device can accurately move to the front of the tire, providing a basis for subsequent positioning and height adjustment.

[0052] Step S104, based on the real-time position information of the target tire, controlling the wheel block device to move to the specified blocking position in front of the target tire;

[0053] Step S106, based on the parameter information of the tire, controlling the electric device of the wheel block device to adjust the block to the preset height to match the tread height of the target tire;

[0054] After determining the specific size of the target tire, the control unit drives the block to move vertically through the electric device and adjusts to the preset height, which is preset according to the tread height of the tire and the type of vehicle, to ensure that the tire can accurately enter the V-shaped opening on the block and form effective contact with the locking surface.

[0055] Step S108, confirming that the target tire is located in the V-shaped opening provided on the block, controlling the wheel block device to stop moving.

[0056] Through the integrated sensor or imaging system, it is confirmed that the tire has completely entered the V-shaped opening and formed stable contact with the locking surface of the block. This step ensures the correct start of the self-locking mechanism and provides a stable fixation for the vehicle. Once the system confirms that the tire is correctly positioned, the control unit will immediately send a stop signal to turn off the drive of the electric device, preventing the block from moving excessively and avoiding damage to the tire or vehicle.

[0057] Through steps S102-S108, the combination of visual recognition and intelligent adjustment makes the use of the device more flexible, reduces the burden of the operator, and also reduces the safety hazards caused by improper fixation. ​

[0058] Specifically, acquiring the parameter information and real-time position information of the target tire includes: collecting image information and real-time position information of the target tire based on a visual sensor or a camera; processing the image information based on an image recognition algorithm to obtain the parameter information of the target tire and calculate the relative distance between the target tire and the block. By processing the image information through the image recognition algorithm, not only the parameter information of the target tire such as the tire width, diameter, etc. can be accurately obtained, but also the relative distance between the tire and the self-locking block device can be calculated in real time, ensuring that the block device can be intelligently adjusted according to the specific size and position of the tire to achieve efficient and accurate vehicle fixation. This design avoids the problem of unstable fixation caused by the inability to adapt to changes in tire size in traditional fixation methods, improving the safety and convenience of vehicle parking.

[0059] Optionally, a convolutional neural network (CNN) in deep learning technology is used. A specifically trained model can efficiently and accurately identify tire features, including size and shape.

[0060] In an embodiment, assume that a vehicle is parked in a parking lot and the self-locking anti-displacement wheel block device is activated. First, the integrated camera automatically aims at the target tire and continuously takes high-definition images. Then, the image recognition algorithm starts to work and quickly detects that the tire width is 200 mm and the diameter is 500 mm, and calculates that the distance between the tire center and the initial position of the block is 1 m and the angle offset is 0°. The control unit decides the distance the block needs to move and the height it needs to adjust based on this information to ensure that the V-shaped opening of the block can accurately cover the tire width and the locking surface height matches the tire diameter, finally achieving the best fixation effect and preventing any accidental movement of the vehicle during parking.

[0061] Specifically, moving the wheel block device to the specified blocking position in front of the target tire based on the real-time position information of the target tire includes: acquiring the position information of the wheel block device; based on the real-time position information of the target tire and the position information of the wheel block device, calculating the relative distance between the target tire and the wheel block device to generate a moving path.

[0062] The real-time position information of the wheel block device is obtained by using GPS, indoor positioning system or ground inductor technology. At the same time, the position data of the target tire is collected by a visual sensor or a radar system to ensure the real-time and accuracy of the information.

[0063] Based on the acquired position information of the wheel block device and the target tire, the relative distance between the two is calculated through a mathematical algorithm. This step also includes the evaluation of the angle relationship between the two to ensure that the block device not only moves to the target position in a straight line, but also faces the tire at the correct angle.

[0064] The path planning algorithm generates a moving path based on the relative distance and environmental obstacle information. The path planning aims to find the shortest path or the safest path from the current position to the front of the target tire while avoiding collisions with obstacles. The optimized path should also consider the moving speed and stability of the block device.

[0065] In an embodiment, assuming that in an automated parking lot environment, after a car is parked, the self-locking anti-displacement wheel block device needs to be quickly positioned in front of the right front wheel of the car for fixing operation. The specific steps are as follows: the GPS module on the wheel block device determines that it is currently located at coordinates (X1, Y1) in the parking lot, at the same time, the integrated camera and image recognition algorithm captures and analyzes the position of the target tire, and obtains its coordinates (X2, Y2) and specific size parameters of the tire. The system determines the straight-line distance between the target tire and the block device by the formula [\sqrt{(X2-X1)^2+(Y2-Y1)^2}], and determines the angular deviation between the two using trigonometric functions to ensure that the block device can be aligned with the tire at the best angle. The control unit of the block device comprehensively analyzes the real-time map information of the parking lot, including the positions of other vehicles, columns and obstacles, and generates the optimal path from (X1, Y1) to the specified blocking position in front of (X2, Y2) using an algorithm. This algorithm not only considers the shortest route, but also evaluates the safety of the path to avoid possible collision risks. The control unit sends the planned path information to the drive system of the block device, and the drive motor controls the block device to move smoothly along the planned path according to the path planning signal. During the movement, the system continuously monitors the real-time position of the block device to ensure that it accurately reaches the specified position according to the preset path. When the block device approaches the target tire, the relative distance is further confirmed by the laser ranging sensor, and when it reaches the set blocking position, the system instructs the drive motor to stop, and at the same time, the electric device is started to adjust the block to the appropriate height to match the diameter size of the tire.

[0066] Through the above embodiment, we can see that the self-locking anti-displacement wheel block device can accurately move to the specified blocking position in front of the target tire through the intelligent positioning system and the optimized path planning algorithm, realizing automated operation and greatly improving the efficiency and safety of the vehicle fixing process.

[0067] Specifically, based on the parameter information of the tire, the electric device of the wheel block device is controlled to adjust the block to the preset height, including: based on the width size of the target tire, obtaining the target lifting height of the block; driving the electric device to adjust the center of the V-shaped opening on the block to be consistent with the centerline height of the tread of the target tire.

[0068] Firstly, based on the width and diameter of the target tire, the optimal lifting height of the block is calculated through a preset mathematical model or algorithm. The width is used to determine the degree of expansion of the V-shaped opening, while the diameter is used to calculate the height of the tire center line, so as to match the lifting height of the block. According to the calculated target lifting height, the control unit sends a control signal to the electric device, and the electric device drives the block to lift vertically until the center of the V-shaped opening is consistent with the height of the tire center line.

[0069] During the lifting of the block, the system monitors the position and lifting state of the block in real time through the sensor, and once it is lifted to the target height, the sensor will send a signal to the control unit to confirm that the block has reached the correct position. After receiving the confirmation signal, the control unit will stop driving the electric device to avoid excessive lifting of the block.

[0070] Specifically, in the case of confirming that the target tire is located in the V-shaped opening opened on the block, the control wheel block device stops moving, including: obtaining the extrusion force of the target tire on the block based on the pressure sensor; when the extrusion force is less than a first preset pressure, the V-shaped opening generates a reverse force, and the control wheel block device stops moving.

[0071] The pressure sensor is integrated on the inner wall or bottom of the V-shaped opening. This sensor can monitor the change of extrusion force of the tire and the block in real time. When the tire enters the V-shaped opening and contacts the block, the pressure sensor starts to detect and record the extrusion force. The system sets a first preset pressure value, which is determined based on the design of the block device and the force analysis of the tire, to ensure that the tire enters the V-shaped opening stably, but not to cause excessive extrusion to the tire or the block.

[0072] Once it is monitored that the extrusion force of the tire on the block is less than the first preset pressure value, it indicates that the tire has completely entered the V-shaped opening. At this time, the design characteristics (self-locking angle) of the V-shaped opening begin to play a role, generating a reverse locking force to ensure that the tire cannot push the block forward through the deformation of the material or the adjustment of the mechanical structure. At the same time, the control unit receives the signal of the pressure sensor to judge that the tire has been positioned correctly, and immediately sends a stop signal to the driving system of the block device to make the block device stop moving.

[0073] Further, an additional confirmation step can be set to confirm the position of the tire and the locking state of the block again through image recognition or laser ranging technology to ensure the safety and reliability of the vehicle fixation.

[0074] In one embodiment, assume that at a logistics transfer center, after a transport truck has parked, the self-locking anti-displacement wheel block device is activated to secure the front wheels of the vehicle. The pressure sensor in the block device has a first preset pressure of 100 N, which is calculated based on the characteristics of the truck tire (such as hardness, diameter, and width) and the mechanical properties of the block material (such as elastic modulus, compressive strength), aiming to ensure that the tire can smoothly enter the V-shaped opening, and the block can be effectively locked. When the block device moves to the correct position and the tire begins to contact and press the V-shaped opening, the pressure sensor monitors the pressing force in real time. As the tire gradually penetrates the opening, the pressing force gradually increases until it reaches 95 N, and the design of the V-shaped opening causes the tire to be pressed to change to a reverse locking force on the block, which is sufficient to keep the block stable and not affected by the tire thrust to move. At this time, the control unit receives the feedback signal from the pressure sensor, confirming that the pressing force is less than the first preset pressure (100 N), and determining that the tire has completely entered the V-shaped opening and is securely fixed. The control unit immediately sends a stop signal to the drive system of the block device, and the drive system responds to the stop signal, the motor stops running, the block device stops moving, and the entire self-locking process is completed.

[0075] Specifically, when the pressing force exceeds the first preset pressure, the anti-skid device under the block is controlled to extend, and the anti-skid device engages with the ground to provide additional friction.

[0076] The integrated high-precision pressure sensor continuously monitors the pressing force of the tire on the block. Once the pressing force exceeds the first preset pressure (e.g., 100 N), the system immediately recognizes that the tire exerts a greater force on the block, and additional anti-skid measures may be needed to enhance the fixing effect. After the control unit receives the signal from the pressure sensor, it immediately activates the electric drive mechanism at the bottom of the block. The electric drive mechanism drives the anti-skid device (such as a pawl, a stud, or a rubber pad) to extend and contact the ground through a gear, a chain, or a pneumatic system. After the anti-skid device extends, its special structure is designed to engage with the ground, such as the sharp end of the pawl penetrating into the ground gap or the rubber pad adhering to the ground to increase the contact area. This engagement greatly increases the friction between the block and the ground, ensuring that the block will not move even when the tire exerts a greater force.

[0077] In another embodiment, assume a large truck loading and unloading area, a heavy-loaded truck needs to be temporarily fixed to prevent vehicle sliding during unloading. When the self-locking anti-displacement wheel block device detects that the tire pressure on the block reaches 120N (exceeding the first preset pressure), the system responds immediately. The anti-skid pawls below the block are designed to be retractable, made of 65Mn spring steel, and the surface is quenched to ensure strength and enhance the ability to bite the ground. The extension and retraction of the pawls are driven by a small servo motor through a gear and linkage mechanism. When the pressure sensor detects that the pressure exceeds 100N, the control unit quickly sends a signal to the servo motor. After receiving the command, the servo motor drives the pawls to extend from the bottom of the block, and the tip of the pawl contacts the ground and penetrates into the ground gap to form a stable bite. As the pawls extend, their friction with the ground increases significantly, so that even if the tire exerts more force (such as 120N), the block can remain stable and will not slide forward. This provides additional security for the vehicle, especially when loading and unloading heavy objects, to prevent the vehicle from sliding due to uneven ground or tire pressure.

[0078] Specifically, the control method further includes: obtaining a start instruction of the vehicle, controlling the block to descend to a safe height; and controlling the wheel block device to move away from the area where the target tire is located.

[0079] The control unit of the block device receives the start instruction of the vehicle, which may be sent by a wireless signal from the vehicle-mounted system or a remote control device in the driver's hand, or triggered by a physical button on the block device.

[0080] The control unit immediately wakes up the electric drive system according to the start instruction to drive the block to descend to a preset safe height. This height should be lower than the lowest point of the tire to ensure that the tire does not hit the block when the vehicle starts, while quickly and smoothly completing the descent. During the descent, the system continuously monitors the position of the block to ensure accuracy.

[0081] If the anti-skid part (such as the tooth plate or friction pad) below the block is in the extended state during the fixing process, the control unit will first trigger the anti-skid part retraction mechanism to retract it to the inside of the block or the original position before the block descends, ensuring that no part protrudes to affect the vehicle start.

[0082] After the block descends to the safe height, the control unit commands the wheel block device as a whole to move along a predetermined path and move away from the area where the target tire is located. The movement path needs to avoid the tire and other potential obstacles to ensure that the block device does not collide with the vehicle or other objects during the movement.

[0083] In another embodiment, assuming in an automated parking lot management scenario, the vehicle is ready to leave the parking space, the block release operation is automatically triggered to ensure the safe start of the vehicle. The block device is equipped with a fast-responding electric drive system, which can lower the block to a safe height within a few seconds after receiving the instruction, and the lowering speed and stroke are precisely controlled by the control unit. When receiving the vehicle start instruction, the control unit first triggers the recovery of the anti-skid part (such as a spring steel tooth plate), which is collected into the storage groove at the bottom of the block through an electric motor and a mechanical connecting rod. After the block is lowered to a safe height, the control unit starts the moving motor of the block device to smoothly move away from the area where the target tire is located along the preset track or path. The path planning is based on the obstacle avoidance information provided by the vehicle-mounted radar and camera to ensure that the block device does not touch the tire or any obstacles during movement.

[0084] Specifically, the control method further comprises: obtaining the running state and power value of the electric device; in the case where it is determined that the power value of the electric device is lower than a preset starting power value or in the case where it is determined that the electric device has a fault, sending an alarm signal to an operator.

[0085] The preset starting power value is the minimum power requirement for the electric device to start and complete the block operation.

[0086] If the power value of the electric device is lower than the preset starting power value, or a fault (such as motor overheating, circuit short circuit, etc.) of the electric device is detected, the control unit will immediately start the alarm mechanism and send an alarm signal to the operator (such as the parking lot manager, the logistics center dispatcher) through wireless communication technology. After receiving the alarm signal (LED indicator light or sound alarm), the operator can take timely measures, such as replacing the battery, checking the circuit, manually operating the block, etc., to ensure the normal operation of the wheel block device and avoid affecting the fixing or release operation of the vehicle.

[0087] In a specific embodiment, assume that in a busy logistics park, the wheel chock device is using the electric device for tire fixing operation. The system is set with a preset starting power value of 12V, which ensures that the chock can be lifted stably under the tire. The chock device is equipped with a high-precision BMS that monitors the battery voltage of the electric device in real time. In an operation, the BMS detects that the battery voltage has dropped to 11.5V, which is lower than the preset starting power value. At the same time, through the temperature sensor built-in the motor, the system detects that the motor temperature reaches an abnormally high value (such as exceeding 80℃), which may be caused by overuse or circuit failure. After the control unit receives the abnormal signals of power value and motor temperature, it immediately sends an alarm message to the logistics dispatch center of the park through the integrated wireless communication module, including the "low power" and "motor overheating" two state indications. The operator of the dispatch center receives the alarm signal and quickly confirms the ID and location of the chock device. According to the device manual, the operator judges that the device needs to be maintained urgently to avoid vehicle fixing failure caused by insufficient power or motor failure. The operator carries a spare battery and tools to the scene of the chock device, checks the power value and running state of the electric device. After confirming that the power value is too low, a new battery is immediately replaced; at the same time, the motor is cooled and the circuit is checked to rule out the risk of short circuit. After replacing the battery and checking the circuit, the operator uses the handheld device to test the chock device system, confirms that the power value has been restored to more than 12V, and the motor temperature has also dropped to normal level. Then, the operator resets the system status of the chock device through the handheld device and restarts the intelligent control program.

[0088] By integrating power value monitoring and running state monitoring functions, the self-locking anti-displacement wheel chock device can warn potential power shortage or equipment failure, notify the operator in time for intervention, and avoid safety hazards caused by equipment abnormalities. This mechanism is particularly suitable for large logistics centers, automated parking lots, etc., which can significantly improve the availability of equipment and the reliability of operation, and reduce the risk of operation delay or accidents caused by equipment failure.

[0089] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof (e.g., "vertical ly", "horizontal ly", etc.) can refer to the relative positions of an apparatus or feature as shown in the drawings, and shall not be construed as limiting the present application to any particular spatial orientation. Furthermore, the terms "first", "second", third", etc. merely identify one of a number of similar features or steps in an embodiment, and are not intended to denote a spatial or chronological priority of such features or steps to one another. The terms "comprise", "comprising", "include", "including", and the like, as used herein, are specifically intended to be construed as open-ended terms (i.e., the terms do not exclude the presence of other elements or steps). It is specifically intended that any total number or range of steps or components to be

[0090] In addition, it should be understood that any numerical range recited herein includes all values from the lower and upper limits of that range. For example, if a concentration range is stated as 1% to 50%, it is intended that values ranging from 1% to 50%, such as 20%, are expressly enumerated. It is also understood that the endpoints of the ranges are not significant and are intended to be merely approximate. It is also understood that the description is not limited in scope to the specific embodiments described herein, which are intended for illustrative purposes only. Any change of numerical limitations, such as concentration ranges, temperature ranges, etc., are intended to be included in the scope of the present application.

[0091] In the above embodiments, the description of each embodiment is focused on a certain aspect. The description of a certain aspect in a certain embodiment can be referred to the description of a similar aspect in another embodiment.

[0092] The preferred embodiments of the present application have been described above with the aid of drawing figures, which are intended to be illustrative only and not restrictive of the application. Any change to the preferred embodiments described herein, any clearly inferred combinations of two or more of the preferred embodiments and any clearly inferred modifications, equivalent arrangements or opposite arrangements are intended to be included within the scope of the present application.

Claims

1. A self-locking anti-shift wheel chock device, characterized in that, The self-locking anti-shifting wheel block device comprises: a support (20) having a receiving cavity inside, and an electric device (30) arranged in the receiving cavity; a block (10) arranged above the support (20), connected with the electric device (30), having a locking surface arranged at a first angle with the horizontal direction, and having a V-shaped opening (40) arranged on the locking surface, and the opening end of the V-shaped opening (40) is flush with the lower edge of the locking surface; wherein the electric device (30) is used to drive the block (10) to be located at a preset working position, and the working position is multiple, and the height of each working position is arranged differently.

2. A wheel chock device as claimed in claim 1, wherein, The self-locking anti-shifting wheel block device further comprises: an anti-skid member (50) having a avoiding position inside the receiving cavity, and having a working position arranged outside the receiving cavity and protruding from the bottom surface of the support (20).

3. A control method of a self-locking displacement preventing wheel chock device, the control method being executed by the wheel chock device according to claim 1 or 2, characterized in that, comprises: confirming that the vehicle is in a parking condition, obtaining parameter information and real-time position information of a target tire, the parameter information including width and diameter; based on the real-time position information of the target tire, controlling the wheel block device to move to a specified blocking position in front of the target tire; based on the parameter information of the tire, controlling the electric device of the block of the wheel block device to adjust the block to a preset height to match the tread height of the target tire; in the case of confirming that the target tire is located in the V-shaped opening arranged on the block, controlling the wheel block device to stop moving.

4. The control method according to claim 3, characterized by obtaining the parameter information and the real-time position information of the target tire comprises: based on a visual sensor or a camera, collecting image information and real-time position information of the target tire; based on an image recognition algorithm, processing the image information to obtain the parameter information of the target tire, and calculating the relative distance between the target tire and the block.

5. The control method according to claim 3, characterized by, based on the real-time position information of the target tire, moving the wheel block device to the specified blocking position in front of the target tire comprises: obtaining position information of the wheel block device; based on the real-time position information of the target tire and the position information of the wheel block device, calculating the relative distance between the target tire and the wheel block device, and generating a moving path.

6. The control method according to claim 3, characterized by based on the parameter information of the tire, controlling the electric device of the block of the wheel block device to adjust the block to a preset height comprises: based on the width of the target tire, obtaining the target lifting height of the block; driving the electric device to adjust the center of the V-shaped opening on the block to be consistent with the centerline height of the tread of the target tire.

7. The control method according to claim 3, characterized by, in the case of confirming that the target tire is located in the V-shaped opening arranged on the block, controlling the wheel block device to stop moving comprises: based on a pressure sensor, obtaining the extrusion force of the target tire on the block; when the extrusion force is less than a first preset pressure, the V-shaped opening generates a reverse force, and the wheel block device is controlled to stop moving.

8. The control method according to claim 7, characterized by, When the extrusion force exceeds a first preset pressure, a skid-proof piece below the block is controlled to extend, and the skid-proof piece is engaged with the ground to provide additional friction.

9. The control method according to claim 3, characterized by, The control method further comprises: An instruction for starting the vehicle is obtained, and the block is controlled to descend to a safe height; The wheel block device is controlled to move away from the area where the target tire is located.

10. The control method according to claim 3, characterized by, The control method further comprises: An operating state and a power value of the electric device are obtained; In a case where it is determined that the power value of the electric device is lower than a preset starting power value or in a case where it is determined that the electric device has a fault, an alarm signal is sent to an operator.

Images