Vehicle auxiliary escape device and car

Abstract

This invention provides a vehicle traction assistance device and a vehicle, relating to the field of vehicle technology. The vehicle traction assistance device includes a grounding component and a drive component. The grounding component includes a hinged end and a grounding portion movable relative to the hinged end. The hinged end of the grounding component is hinged to the vehicle body, and the output end of the drive component is connected to the grounding component. The drive component drives the grounding component to rotate relative to the vehicle body, either so that the grounding component rotates until the grounding portion is parallel to the ground or so that the grounding component is folded to one side of the vehicle body. The grounding portion, when parallel to the ground, moves away from the hinged end to apply downward pressure to the ground. When a wheel is stuck, the vehicle traction assistance device can drive the grounding component to rotate until the grounding portion is parallel to the ground via the drive component. The grounding portion can then move away from the hinged end to apply downward pressure to the ground, thereby lifting the wheel and facilitating the placement of anti-slip material under the wheel to improve wheel traction and assist in getting the wheel out of trouble.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle assistance device for getting out of trouble and an automobile. Background Technology

[0002] Existing methods for getting vehicles out of trouble mainly involve monitoring the difference in wheel speeds through the vehicle's own power system and electronic assistance systems, and then braking the slipping wheel or distributing power to the wheel with traction to help the vehicle get out of trouble.

[0003] However, the triggering conditions for the above-mentioned extrication methods are based on the fact that the wheels have already slipped severely or the vehicle has completely lost power and is stuck in trouble. Therefore, there is an unavoidable time delay from when the vehicle system detects the slip signal, the system makes a judgment, and then executes the braking or locking action. During this delay period, the slipping wheels will continue to spin freely, further digging out the sand or mud under the wheels, causing the vehicle to sink deeper and lose traction further, which greatly increases the difficulty and risk of finally getting out of trouble. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle assistance device and automobile to alleviate the technical problem that existing vehicle escaping methods are based on the triggering conditions of severely slipping wheels or the vehicle having completely lost power and become stuck, resulting in an unavoidable time delay in the escaping process. During this delay, the slipping wheels will continue to spin, further digging away the sand or mud under the wheels, causing the vehicle to sink deeper and further lose traction, thus greatly increasing the difficulty and risk of finally getting out of trouble.

[0005] In a first aspect, the present invention provides a vehicle assistance device for getting out of trouble, including a grounding component and a driving component; The grounding assembly includes a hinged end and a grounding part that can move relative to the hinged end. The hinged end of the grounding assembly is hinged to the vehicle body, and the output end of the drive assembly is connected to the grounding assembly. The drive assembly is used to drive the grounding assembly to rotate relative to the vehicle body, so as to rotate the grounding assembly to the grounding part being parallel to the ground or to rotate the grounding assembly to the side folded in the vehicle body. The grounding part is used to move away from the hinge end when parallel to the ground to apply downward pressure to the ground.

[0006] In an optional embodiment, a base assembly is further included, which is detachably connected to the vehicle body, the drive assembly is mounted on the base assembly, and the hinged end of the grounding assembly is hinged to the vehicle body via the base assembly.

[0007] In an optional embodiment, a transmission component is further included, which is connected between the output terminal of the drive component and the grounding component.

[0008] In an optional embodiment, the driving component is a linear driver, and the transmission component includes a rack and a gear; The output end of the drive assembly is connected to the rack, the rack meshes with the gear, the gear is rotatably mounted on the base assembly and fixedly connected to the grounding assembly; the drive assembly is used to drive the rack to move along its length direction, and the gear is used to rotate under the drive of the rack to drive the grounding assembly to rotate relative to the vehicle body.

[0009] In an optional embodiment, the transmission assembly further includes a movable plate disposed on one side of the base assembly and fixedly connected to the output end of the drive assembly, and the rack is fixed to the movable plate.

[0010] In an optional embodiment, a guide rail structure is provided between the base assembly and the movable plate. The guide rail structure includes a slider and a guide rail extending along the length direction of the rack. One of the guide rail and the slider is fixedly connected to the base assembly, and the other is fixedly connected to the movable plate. The slider is slidably connected to the guide rail.

[0011] In an optional embodiment, the drive component is a cylinder, and an air source component is installed on the side of the movable plate opposite to the base component, the air source component being connected to the drive component.

[0012] In an optional embodiment, the base assembly is detachably connected to the vehicle body via a positioning component; The positioning component includes a first engaging member, a second engaging member, and a fastener. Both the first engaging member and the second engaging member are annular structures with a notch on one side. The first engaging member and the second engaging member are respectively used to engage with two bumper reinforcement bars in opposite positions. The notch side of the first engaging member can pass through the notch of the second engaging member and extend into the interior of the second engaging member. The fastener is used to fix the first engaging member, the second engaging member, and the base assembly in sequence.

[0013] In an optional embodiment, the grounding assembly includes a grounding drive element and a grounding support element; The output end of the drive component is connected to the ground drive member. One end of the ground drive member is the hinge end, and the other end is connected to the ground support member. The side of the ground support member away from the ground drive member is the grounding part. The ground drive member can extend and retract to drive the ground support member to move relative to the hinge end.

[0014] In optional implementations, an angle detection element and a control component are also included; The angle detection element is connected to the grounding component and is used to detect the rotation angle of the grounding component; Both the angle detection device and the driving component are connected to the control component. The control component has a preset angle and is used to receive angle information detected by the angle detection device and control the driving component to stop working when the angle information is equal to the preset angle.

[0015] Secondly, the present invention provides a vehicle including the vehicle assistance device for getting out of trouble as described in any of the foregoing embodiments.

[0016] The vehicle traction aid device provided by this invention includes a grounding component and a drive component. The grounding component includes a hinged end and a grounding portion that can move relative to the hinged end. The hinged end of the grounding component is hinged to the vehicle body, and the output end of the drive component is connected to the grounding component. The drive component is used to drive the grounding component to rotate relative to the vehicle body, so as to rotate the grounding component until the grounding portion is parallel to the ground or to rotate the grounding component to one side folded into the vehicle body. The grounding portion is used to move away from the hinged end when parallel to the ground to apply downward pressure to the ground. The vehicle traction aid device provided by this invention is used to assist vehicles such as automobiles in getting out of trouble. During normal vehicle driving, the drive component can drive the grounding component to rotate to one side folded into the vehicle body, at which time the grounding component will not affect the normal driving of the vehicle. When a vehicle travels on soft surfaces such as sand or mud, and the wheels slip or lose power, becoming stuck, the drive assembly can be activated to rotate the grounding assembly relative to the vehicle body until the grounding part is parallel to the ground. Then, the grounding part of the grounding assembly moves away from the hinge end to apply downward pressure to the ground. At this point, the grounding assembly can support and lift the wheel. The user can then lay dry grass, anti-slip materials such as skateboards under the wheel to improve wheel traction, thereby preventing the wheel from spinning freely and worsening the stuck situation. This creates crucial conditions for the wheel to regain traction or for other extrication methods, improving the vehicle's ability and success rate to quickly rescue itself on soft surfaces such as sand and mud.

[0017] Compared with the prior art, the vehicle assistance device provided by the present invention can drive the grounding component to rotate until the grounding part is parallel to the ground when the wheel is stuck. Then the grounding part can move away from the hinge end to apply downward pressure to the ground, thereby lifting the wheel. This makes it easier to lay anti-slip material under the wheel to improve the wheel's adhesion, assist the wheel in getting out of trouble, and prevent the vehicle from getting deeper and deeper on soft road surfaces due to untimely intervention.

[0018] The automobile provided by the present invention includes the above-mentioned vehicle traction device, and therefore the automobile has the same beneficial effects as the above-mentioned vehicle traction device. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the vehicle assistance device and automobile provided in an embodiment of the present invention; Figure 2 This is another structural schematic diagram of the vehicle assistance device and automobile provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the vehicle assistance device for getting out of trouble provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the drive assembly, base assembly, and partial transmission assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the grounding assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the drive assembly and the local transmission assembly provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the movable plate and air source assembly provided in an embodiment of the present invention.

[0021] Icons: 1-Grounding component; 10-Grounding drive component; 100-Hinge joint; 11-Grounding support component; 110-Arc-shaped part; 111-Anti-slip ridge; 12-Angle detection component; 2-Drive component; 3-Vehicle; 30-Bumper reinforcement bar; 4-Base component; 40-Control component; 400-Vehicle communication interface; 41-Mounting plate; 5-Transmission component; 50-Rack; 51-Gear; 52-Moving plate; 53-Shaft; 6-Guide rail structure; 60-Guide rail; 61-Slider; 7-Air source component; 70-Air pump; 71-Air tank; 8-Connection structure; 80-Bearing ring; 81-Mating ring; 82-Snap-on; 83-Bayonet; 9-Positioning component; 90-First snap-fit ​​component; 91-Second snap-fit ​​component; 92-Fastener. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Example: like Figures 1-5 As shown, the vehicle assistance device provided in this embodiment includes a grounding component 1 and a drive component 2. The grounding component 1 includes a hinged end and a grounding part that can move relative to the hinged end. The hinged end of the grounding component 1 is hinged to the body of the vehicle 3. The output end of the drive component 2 is connected to the grounding component 1. The drive component 2 is used to drive the grounding component 1 to rotate relative to the body, so as to rotate the grounding component 1 to the grounding part parallel to the ground or to rotate the grounding component 1 to one side folded to the body. The grounding part is used to move away from the hinged end when parallel to the ground to apply downward pressure to the ground.

[0030] The vehicle assistance device provided in this embodiment is used to assist vehicles such as cars 3 in getting out of trouble. During normal driving of vehicle 3, such as... Figure 1 As shown, the drive assembly 2 can rotate the grounding assembly 1 to one side of the vehicle body, at which point the grounding assembly 1 will not affect the normal driving of the vehicle 3. When the vehicle 3 travels on soft surfaces such as sand or mud, and the wheels slip or lose power and become stuck, as shown... Figure 2 As shown, the drive assembly 2 can be activated to drive the grounding assembly 1 to rotate relative to the vehicle body until the grounding assembly 1 rotates to the ground parallel to the ground. Then, the grounding part of the grounding assembly 1 moves away from the hinge end to apply downward pressure to the ground. At this time, the grounding assembly 1 can support and lift the wheel. The user can lay dry grass, anti-slip skates or other anti-slip objects under the wheel to improve the wheel's adhesion, thereby preventing the wheel from continuously spinning and causing the vehicle to get stuck. This creates key conditions for the wheel to regain adhesion or use other means of getting out of trouble, improving the vehicle 3's ability to quickly rescue itself and its success rate on soft surfaces such as sand and mud.

[0031] Compared with the prior art, the vehicle assistance device provided in this embodiment can drive the grounding component 1 to rotate to the grounding part parallel to the ground when the wheel is stuck. Then the grounding part can move away from the hinge end to apply downward pressure to the ground, thereby lifting the wheel. This makes it easier to lay anti-slip objects under the wheel to improve the wheel's adhesion, assist the wheel in getting out of trouble, and prevent the vehicle 3 from getting deeper and deeper on soft road surfaces due to untimely intervention.

[0032] In this embodiment, the drive component 2 can also be connected to the CAN (Controller Area Network, ISO international standard serial communication protocol, abbreviated as CAN) bus of the vehicle 3 through the control component 40. At this time, the drive component 2 can be actively triggered based on the vehicle 3 status signal or started by the driver with one key, and then execute the rotation and unfolding action of the grounding component 1, so as to provide active and timely physical lifting intervention in the early stage of wheel sinking, effectively preventing the worsening trend of the vehicle sinking due to continuous wheel spinning.

[0033] like Figure 3 and Figure 4 As shown, the vehicle assistance device provided in this embodiment also includes a base assembly 4, which is detachably connected to the body of the vehicle 3. The drive assembly 2 is installed on the base assembly 4, and the hinge end of the grounding assembly 1 is hinged to the body of the vehicle 3 through the base assembly 4.

[0034] The base assembly 4 provides an installation location for the drive assembly 2 and the grounding assembly 1, thereby improving the integration of the vehicle assisted traction device and thus enhancing the ease of installation of the vehicle assisted traction device.

[0035] Furthermore, since the base assembly 4 is detachably connected to the vehicle body of the vehicle 3, the base assembly 4 can also improve the ease of installation and removal between the vehicle assisted traction device and the vehicle 3. It is convenient to remove the vehicle assisted traction device from the vehicle body when it is not needed, thereby effectively preventing the vehicle assisted traction device from affecting the approach angle, departure angle and daily driving characteristics of the vehicle 3. Compared with the traditional chassis-fixed assisted traction device, it can effectively reduce the collision risk of the vehicle 3 when passing through.

[0036] There are various ways to detachably connect the base assembly 4 to the vehicle body 3, such as by fasteners 92 such as clips 82 and screws.

[0037] like Figure 4 As shown, to ensure the support stability of the base assembly 4, the base assembly 4 can adopt a plate-like structure.

[0038] When drive component 2 is connected to the CAN bus of vehicle 3 via control component 40, such as Figure 3 As shown, a control component 40 can be installed on the base component 4, and the control component 40 integrates a vehicle communication interface 400. The vehicle communication interface 400 is used to connect with the vehicle 3 bus to obtain the vehicle 3 status signal and coordinate the escape control strategy.

[0039] The control component 40 can be a programmable logic controller. The vehicle communication interface 400 (which can be a standard CAN transceiver and connector) enables the vehicle assistance device to seamlessly connect to the vehicle 3 electronic network and read key parameters such as wheel speed, engine torque, and vehicle posture in real time. This provides a data foundation for intelligent judgment of the stuck vehicle status and coordinated control. It also facilitates the control component 40 to receive commands from the cockpit buttons or the central control screen, enabling the drive component 2 and the grounding component 1 to start or stop working.

[0040] like Figure 3 , Figure 4 and Figure 6 As shown, the vehicle assistance device for getting out of trouble provided in this embodiment also includes a transmission component 5, which is connected between the output end of the drive component 2 and the grounding component 1.

[0041] The transmission assembly 5 is used to transmit the driving force from the output end of the drive assembly 2 to the grounding assembly 1, thereby causing the grounding assembly 1 to rotate relative to the vehicle body.

[0042] The configuration of transmission component 5 allows for greater flexibility in the installation position and connection method of drive component 2 and grounding component 1.

[0043] Among them, the drive component 2 can be a motor, and the transmission component can be a sprocket and chain mechanism.

[0044] Or, such as Figure 4 and Figure 6 As shown, the drive assembly 2 is a linear actuator, and the transmission assembly 5 includes a rack 50 and a gear 51. The output end of the drive assembly 2 is connected to the rack 50, the rack 50 meshes with the gear 51, and the gear 51 is rotatably mounted on the base assembly 4 and fixedly connected to the grounding assembly 1. The drive assembly 2 is used to drive the rack 50 to move along its length direction, and the gear 51 is used to rotate under the drive of the rack 50 to drive the grounding assembly 1 to rotate relative to the vehicle body.

[0045] During use, the rack 50 can be driven to move along its length direction by the linear driving force of the linear actuator, which in turn drives the gear 51 to rotate on the base assembly 4. Since the gear 51 is fixedly connected to the grounding assembly 1, the grounding assembly 1 can rotate relative to the vehicle body under the drive of the gear 51.

[0046] As can be seen, when the drive component 2 is a linear actuator and the transmission component 5 includes a rack 50 and a gear 51, the linear driving force of the drive component 2 can be converted into a rotational driving force for driving the grounding component 1 to rotate, thereby realizing the rapid and reliable transformation of the grounding component 1 between the folded state and the unfolded state. The structure is ingenious and the power transmission is efficient.

[0047] The drive assembly 2 can be a pneumatic cylinder, a hydraulic cylinder, or an electric actuator. Pneumatic cylinders are simple in structure, have a fast response, and are easy to integrate with the air pump 70 and the air tank 71. Hydraulic cylinders provide greater driving force and operate smoothly. Electric actuators offer precise control and require no additional fluid medium. It should be noted that the specific structure of the drive assembly 2 is not limited, as long as it can output linear driving force to move the rack 50.

[0048] Furthermore, when the drive assembly 2 uses a pneumatic or hydraulic cylinder, the cylinder body can be fixed on the stationary base assembly 4, and the piston rod is connected to the rack 50. This arrangement makes the transmission of driving force more direct and makes the structure of the drive assembly 2 more stable.

[0049] like Figure 6 As shown, the transmission assembly 5 also includes a movable plate 52, which is disposed on one side of the base assembly 4 and fixedly connected to the output end of the drive assembly 2. The rack 50 is fixed on the movable plate 52.

[0050] The movable plate 52 is used to support the rack 50 and to achieve a fixed connection between the drive assembly 2 and the rack 50, thereby effectively improving the connection stability and drive stability between the drive assembly 2 and the transmission assembly 5.

[0051] During use, the drive component 2 can extend and retract vertically, thereby driving the movable plate 52 to move up or down. Then the movable plate 52 can drive the rack 50 to rise and fall. During the rising and falling process, the rack 50 drives the gear 51 to rotate, thereby driving the grounding component 1 to rotate from the folded storage posture to the unfolded working posture.

[0052] Furthermore, such as Figure 6 As shown, there can be multiple racks 50, which are distributed at intervals along the length of the movable plate 52, and each rack 50 extends along the width of the movable plate 52; each rack 50 is engaged with a gear 51, and the gears 51 at multiple racks 50 are connected sequentially through the same rotating shaft 53.

[0053] In addition, such as Figure 4 As shown, a bearing seat may be provided on the base assembly 4, and the rotating shaft 53 is rotatably mounted on one side of the base assembly 4 through the bearing seat.

[0054] The width of the movable plate 52 can be perpendicular to the ground, and the length can be parallel to the ground. Correspondingly, the rack 50 can move vertically up and down under the drive of the drive assembly 2 and the movable plate 52, thereby driving multiple gears 51 to rotate synchronously.

[0055] The one-to-one correspondence between multiple racks 50 and multiple gears 51 can effectively improve the transmission strength and transmission stability of the transmission assembly 5. In addition, the rotating shaft 53 can improve the rotational synchronization of the multiple gears 51, thereby further improving the transmission effect of the transmission assembly 5.

[0056] In this embodiment, both the base assembly 4 and the movable plate 52 can be made of steel. The steel components can ensure the structural strength and reliability of the base assembly 4 and the movable plate 52 when bearing part of the weight of the vehicle 3 and the impact of getting out of trouble.

[0057] When the control component 40 is installed on the base assembly 4, such as Figure 3 As shown, the control component 40 can be installed on the side of the base component 4 facing the vehicle body 3. At this time, the base component 4 can also protect the control component 40 and prevent the control component 40 from being directly hit by external obstacles during off-road or getting out of trouble.

[0058] like Figure 4 and Figure 6 As shown, a guide rail structure 6 is provided between the base assembly 4 and the movable plate 52. The guide rail structure 6 includes a slider 61 and a guide rail 60 extending along the length direction of the rack 50. One of the guide rail 60 and the slider 61 is fixedly connected to the base assembly 4, and the other is fixedly connected to the movable plate 52. The slider 61 is slidably connected to the guide rail 60.

[0059] The guide rail 60 and the slider 61 can be combined to form a high-precision linear guide pair, which effectively constrains the movement direction of the movable plate 52, so that the movable plate 52 remains stable during the lifting process, preventing uneven loading, jamming or lateral shaking, and thus ensuring that the meshing of the rack 50 and the gear 51 is always in good condition.

[0060] It should also be noted that the sliding guide method between the guide rail 60 and the slider 61 has low frictional resistance, which helps to improve transmission efficiency and smoothness of operation. At the same time, it also bears the bending moment generated by the movable plate 52 and its load, improves the stress condition of the drive component 2, and extends its service life.

[0061] Among them, such as Figure 4 As shown, the guide rail 60 can be fixed to the base assembly 4, such as... Figure 6 As shown, slider 61 is fixed to movable plate 52.

[0062] Corresponding to the number of racks 50, there can also be two guide rails 60 and two sliders 61. The two guide rails 60 are fixed in parallel on the base assembly 4, and the two sliders 61 are slidably connected to the two guide rails 60 in a one-to-one correspondence.

[0063] Furthermore, the guide rail 60 can be a linear optical axis, a square rail, or a dovetail groove guide rail 60, and the slider 61 is a linear bearing or a sliding sleeve that matches the guide rail 60.

[0064] In this embodiment, the drive component 2 is a cylinder, such as... Figure 7 As shown, an air source assembly 7 is installed on the side of the movable plate 52 opposite to the base assembly 4, and the air source assembly 7 is connected to the drive assembly 2.

[0065] The air source assembly 7 includes the aforementioned air pump 70 and air storage tank 71. The air pump 70 is used to supply the gas in the air storage tank 71 to the drive assembly 2 to provide pneumatic power to the drive assembly 2.

[0066] Integrating the air source component 7 onto the movable plate 52 achieves modular built-in power source, saving space and making the vehicle's auxiliary extrication device more compact. The air tank 71 stores high-pressure gas, ensuring a large flow of gas can be provided instantaneously during extrication, enabling the drive component 2 to respond quickly. The air pump 70 replenishes the pressure in the air tank 71 before and after extrication.

[0067] Furthermore, such as Figure 7 As shown, the gas source assembly 7 can be connected to the side of the movable plate 52 opposite to the base assembly 4 via the connecting structure 8. Specifically, the connecting structure 8 includes a symmetrically arranged arc-shaped support ring 80 and an arc-shaped docking ring 81. One end of the support ring 80 is fixed to the movable plate 52, and one end of the docking ring 81 is hinged to the end of the support ring 80 located on the movable plate 52. The other end of the support ring 80 and the other end of the docking ring 81 can be engaged by a buckle 82 and a latch 83. When the docking ring 81 rotates to close with the support ring 80, the buckle 82 is inserted into the latch 83 to lock the gas source assembly 7.

[0068] When maintenance or replacement of the air source assembly 7 is required, simply open the latch 82 and rotate to lift the docking ring 81 to easily remove the air source assembly 7. When closing the connection structure 8, rotate the docking ring 81 to engage it above the support ring 80, and engage the latch 82 with the bayonet 83 to form a reliable mechanical lock, which can prevent the air source assembly 7 from accidentally loosening during off-road bumps or getting out of trouble in the vehicle 3. The connection structure 8 formed by the support ring 80 and the docking ring 81 not only takes into account the convenience of installing and removing the air source assembly 7 and the reliability of fixing and locking, but also avoids the cumbersome operation caused by using a large number of bolts.

[0069] like Figure 3 and Figure 4As shown, the base assembly 4 is detachably connected to the body of the vehicle 3 via the positioning assembly 9. The positioning assembly 9 includes a first engaging member 90, a second engaging member 91, and a fastener 92. Both the first engaging member 90 and the second engaging member 91 are annular structures with a notch on one side. The first engaging member 90 and the second engaging member 91 are respectively used to engage with two oppositely positioned bumper reinforcing bars 30. The notch side of the first engaging member 90 can pass through the notch of the second engaging member 91 and extend into the interior of the second engaging member 91. The fastener 92 is used to fix the first engaging member 90, the second engaging member 91, and the base assembly 4 in sequence.

[0070] Both the first locking member 90 and the second locking member 91 can be U-shaped, and the openings of the first locking member 90 and the second locking member 91 are arranged opposite to each other. The vertical sections on both sides of the first locking member 90 can be inserted into the U-shaped opening of the second locking member 91. The fastener 92 can be a bolt, which passes through the base assembly 4, the first locking member 90 and the second locking member 91 in sequence and is then locked by a nut, thereby realizing the fixed connection between the positioning assembly 9 and the base assembly 4.

[0071] The first latch 90, the second latch 91, and the fastener 92 allow the base assembly 4 to be detachably mounted on the two bumper reinforcement bars 30 at the front of the vehicle 3, thus fully utilizing the inherent structure of the vehicle 3 to install the vehicle traction assistance device. When the vehicle 3 is driving on a solid road surface and the vehicle traction assistance device is not needed, the fastener 92 can be removed, thereby separating the first latch 90 and the second latch 91 from the bumper reinforcement bars 30, and separating the first latch 90 and the second latch 91 from the base assembly 4. This allows the vehicle traction assistance device to be removed from the vehicle 3, preventing it from affecting the approach angle, departure angle, and daily driving characteristics of the vehicle 3.

[0072] When vehicle 3 is driving on a soft road surface and it is necessary to prevent vehicle 3 from getting stuck in a ditch, the first locking component 90 and the second locking component 91 can be locked onto one side of the two bumper reinforcement bars 30, with the openings of the first locking component 90 and the second locking component 91 facing each other, and the vertical sections on both sides of the first locking component 90 inserted into the U-shaped opening of the second locking component 91. Then, the fastener 92 is connected to the first locking component 90, the second locking component 91, and the base assembly 4 in sequence. At this time, the base assembly 4 can be fixed on the bumper reinforcement bar 30, and the grounding component 1 in the vehicle traction device is folded and retracted under the front side of the vehicle body. When it is necessary to use the vehicle traction device to assist in getting out of trouble, the control component 40 controls the drive component 2 to drive the grounding component 1 to rotate and unfold until the grounding part of the grounding component 1 is parallel to the ground. Then, the grounding part of the grounding component 1 is controlled to move downward until it touches the ground, thereby applying a reverse thrust to vehicle 3 and lifting the front wheels of vehicle 3.

[0073] As can be seen, the first locking member 90, the second locking member 91, and the fastener 92 enable the positioning assembly 9 to form a reliable quick-release clamping mechanism. The first locking member 90 and the second locking member 91 are arranged facing each other to form a clamping opening. This clamping opening can be adapted to bumper reinforcing bars 30 of different thicknesses (such as square steel pipes or C-shaped beams). Through the insertion and engagement of the segments of the first locking member 90 and the second locking member 91, the first locking member 90 and the second locking member 91 can be pre-positioned on the bumper reinforcing bar 30 before the fastener 92 is installed. At this time, it is convenient to adjust the position of the first locking member 90 and the second locking member 91 to facilitate the installation and alignment of the first locking member 90 and the second locking member 91. After the first locking component 90 and the second locking component 91 are aligned, the fastener 92 is then connected to the first locking component 90 and the second locking component 91, thereby providing sufficient clamping force to ensure the installation stability of the positioning component 9 on the bumper reinforcing bar 30. This allows the vehicle auxiliary traction device to remain stable during vehicle 3 driving and traction vibrations. At the same time, the positioning component 9, composed of the first locking component 90, the second locking component 91, and the fastener 92, can also meet the needs of quick disassembly, improving the user's ease of operation.

[0074] like Figure 3 and Figure 5 As shown, the grounding assembly 1 includes a grounding drive member 10 and a grounding support member 11; the output end of the drive assembly 2 is connected to the grounding drive member 10, one end of the grounding drive member 10 is a hinge end, and the other end is connected to the grounding support member 11. The side of the grounding support member 11 away from the grounding drive member 10 is a grounding part. The grounding drive member 10 can extend and retract to drive the grounding support member 11 to move relative to the hinge end.

[0075] To improve the performance of the grounding support 11, the grounding support 11 can adopt a plate-like structure.

[0076] The grounding drive unit 10 can be a cylinder, a hydraulic cylinder or an electric push rod. In this case, the grounding drive unit 10 can convert the pressure of the fluid or the rotational driving force of the motor into a vertical linear lifting force, thereby realizing the movement of the grounding support unit 11 relative to the ground.

[0077] When the grounding drive 10 is a pneumatic or hydraulic cylinder, its cylinder body can be rotatably connected to the rotating shaft 53 on the base assembly 4, and the end of the piston rod is fixed with a grounding support 11.

[0078] When the drive component 2 is connected to the CAN bus of the vehicle 3 through the control component 40, the ground drive component 10 can also be connected to the control component 40. At this time, the control component 40 can also drive the ground drive component 10 to start or stop.

[0079] Furthermore, such as Figure 5As shown, the vehicle assistance device for getting out of trouble provided in this embodiment also includes an angle detection component 12 and a control component 40; the angle detection component 12 is connected to the grounding component 1 and is used to detect the rotation angle of the grounding component 1; both the angle detection component 12 and the drive component 2 are connected to the control component 40, the control component 40 is provided with a preset angle, the control component 40 is used to receive the angle information detected by the angle detection component 12, and control the drive component 2 to stop working when the angle information is equal to the preset angle.

[0080] The angle detection component 12 can be an angle sensor, which can be fixed to the outer wall of the cylinder of the grounding drive component 10. This allows for real-time monitoring of the angle changes of the grounding drive component 10 during the rotation and deployment of the grounding drive component 10 and the grounding support component 11, as well as during the lifting process. The angle detection component 12 can also send the detected angle information to the control component 40, enabling the control component 40 to precisely control the grounding drive component 10 to stop at a preset angle (the rotation angle of the grounding drive component 10 when its axis is perpendicular to the ground, for example, 90 degrees). This ensures the optimal lifting angle and prevents excessive rotation of the grounding drive component 10 and the grounding support component 11, which could lead to structural interference or uneven stress.

[0081] In this embodiment, the bearing seat on the aforementioned base assembly 4 can be formed by combining two opposing mounting plates 41. The mounting plates 41 have through holes, and the rotating shaft 53 is rotatably mounted in the through holes of the mounting plates 41. The end of the grounding drive member 10 away from the grounding support member 11 can be provided with a hinge joint 100. The hinge joint 100 has a through hole and is disposed between the two opposing mounting plates 41. The rotating shaft 53 passes through and is fixed in the through hole of the hinge joint 100 to realize the hinge between the grounding drive member 10 and the base assembly 4.

[0082] It can be seen that the two mounting plates 41 form a stable bearing seat, which can provide reliable rotational support for the rotating shaft 53. The hinge joint 100 is located between the two mounting plates 41 and is fixedly connected to the rotating shaft 53, ensuring the rigidity and synchronicity of the rotational torque transmission from the drive assembly 2 to the grounding assembly 1.

[0083] When the grounding drive component 10 uses a cylinder and an air source component 7 is installed on the side of the movable plate 52 opposite to the base assembly 4, the air source component 7 can also be connected to the grounding drive component 10 to provide pneumatic power to the grounding drive component 10.

[0084] To improve the performance of the grounding support 11, the grounding support 11 can be made of steel, which ensures the compressive strength and deformation resistance of the grounding support 11.

[0085] Furthermore, such as Figure 5As shown, the front side of the grounding support 11 (that is, the side of the grounding support 11 that can first contact the ground when the grounding assembly 1 is rotated and unfolded) is provided with an upward-curving arc-shaped part 110, and the bottom of the grounding support 11 is provided with multiple anti-slip protrusions 111 spaced apart.

[0086] The arc-shaped portion 110 helps to smoothly guide the grounding support 11 when it descends to contact uneven ground or encounters small obstacles, reducing the impact and jamming that the grounding support 11 experiences during rotation and deployment.

[0087] The anti-slip ridge 111 can be a horizontal or herringbone pattern. The anti-slip ridge 111 can increase the friction between the ground support 11 and the soft ground (such as sand or mud), prevent the ground support 11 from slipping during the lifting process of the ground assembly 1, and thus ensure that the lifting force of the ground assembly 1 is effectively transmitted to the vehicle 3, further improving the stability and success rate of the vehicle 3's escape action.

[0088] The vehicle traction device provided in this embodiment can perform traction actions according to the following procedure during use: The control component 40, mounted on the base assembly 4, receives the escape trigger signal and then controls the drive assembly 2 to drive the movable plate 52 to descend. The movable plate 52 then converts its linear descent into rotational motion of the grounding assembly 1 through the meshing of the rack 50 and gear 51, causing the grounding assembly 1 to rotate to its working position. The control component 40 then controls the grounding drive component 10 in the grounding assembly 1 to descend until it is in contact with the ground, applying an upward lifting force to the vehicle 3. Once the grounding assembly 1 reaches the predetermined lifting height, the vehicle 3 performs a coordinated escape operation.

[0089] The traction trigger signal can originate from the driver's active button command, or it can be automatically generated by the control component 40 after logical judgment based on parameters such as wheel slip ratio, vehicle speed, and throttle opening obtained from the vehicle 3 bus. Specifically, the traction trigger signal can be automatically generated when the following conditions are met simultaneously: the vehicle 3 is in four-wheel drive mode, the vehicle speed is below a first threshold (e.g., 5 km / h), the drive wheel slip ratio is above a second threshold, and the throttle pedal opening remains above a third threshold for a predetermined time. The first threshold, second threshold, third threshold, and predetermined time can be selected according to the actual situation of the vehicle 3.

[0090] The coordinated traction operation performed by vehicle 3 is as follows: After the ground contact component 1 reaches the predetermined lifting height, the wheels are lifted. At this time, a torque maintenance request signal is sent to the engine controller (ECU) of vehicle 3 via the vehicle 3 bus, while prompting the driver to try to engage a suitable gear (such as low-speed four-wheel drive) and gently accelerate; or, the control component 40 can request vehicle 3 (electronic stability system) to apply intermittent braking to the continuously spinning wheels, simulating the differential lock effect, and transferring power to the wheels that still have traction. The above-mentioned coordinated traction operation performed by vehicle 3 combines mechanical lifting with the power distribution of vehicle 3 itself, forming a comprehensive traction strategy, which effectively improves the success rate of vehicle 3 in getting out of trouble.

[0091] In summary, when vehicle 3 gets stuck in sand, after the vehicle system automatically detects that the conditions for getting out of trouble are met, the control component 40 first activates the air source component 7 to ensure air pressure, and then controls the extension of the drive component 2. The drive movable plate 52 is driven to descend smoothly along the guide rail 60. During the descent of the movable plate 52, the rack 50 fixed on the movable plate 52 drives the gear 51 to rotate, thereby driving the ground drive component 10 and the ground support component 11 to rotate and unfold from below the chassis to the front and downward through the rotating shaft 53. During the rotation, the angle detection component 12 provides angle information. When the ground drive component 10 is close to being perpendicular to the ground, the drive component 2 stops extending, and then the ground drive component 10 extends to push the ground support component 11 into the ground, thereby lifting the front axle of vehicle 3 and reducing the load on the wheels stuck in the pit. After the wheels are unloaded, the control component 40 can also provide feedback to vehicle 3 to enable vehicle 3 to perform the aforementioned cooperative traction-avoidance operation. Specifically, it can send a torque maintenance request signal to the engine controller (ECU) of vehicle 3 via the vehicle 3 bus, while simultaneously prompting the driver to try engaging a suitable gear (such as low-speed four-wheel drive) and gently accelerate. Alternatively, the control component 40 can request vehicle 3 (electronic stability system) to apply intermittent braking to the continuously spinning wheels, simulating a differential lock effect, to transfer power to the wheels that still have traction. At this point, vehicle 3, under the combined action of lifting assistance and power redistribution, drives out of the ditch. After escaping the ditch, the actuators such as drive component 2 and grounding component 1 retract in reverse order, restoring the vehicle's traction-avoidance device to its normal operating state. Figure 1 The compact storage configuration shown.

[0092] like Figure 1 and Figure 2 As shown, this embodiment also provides a car, which includes the above-mentioned vehicle assistance device. The car, like the above-mentioned vehicle assistance device, can drive the grounding component 1 to rotate to the grounding part being parallel to the ground when the wheel is stuck. Then the grounding part moves away from the hinge end to apply downward pressure to the ground, thereby lifting the wheel. This makes it easier to lay anti-slip material under the wheel to improve the wheel's adhesion, assist the wheel in getting out of trouble, and prevent the vehicle 3 from getting deeper and deeper on soft road surfaces due to untimely intervention.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle assistance device for getting out of trouble, characterized in that, It includes a grounding component (1) and a driving component (2); The grounding assembly (1) includes a hinged end and a grounding part that can move relative to the hinged end. The hinged end of the grounding assembly (1) is hinged to the body of the vehicle (3). The output end of the drive assembly (2) is connected to the grounding assembly (1). The drive assembly (2) is used to drive the grounding assembly (1) to rotate relative to the vehicle body, so as to rotate the grounding assembly (1) to the grounding part parallel to the ground or to rotate the grounding assembly (1) to the side folded on the vehicle body. The grounding part is used to move away from the hinge end when parallel to the ground to apply downward pressure to the ground.

2. The vehicle assistance device for getting out of trouble according to claim 1, characterized in that, It also includes a base assembly (4), which is detachably connected to the body of the vehicle (3), the drive assembly (2) is mounted on the base assembly (4), and the hinge end of the grounding assembly (1) is hinged to the body of the vehicle (3) through the base assembly (4).

3. The vehicle assistance device for getting out of trouble according to claim 2, characterized in that, It also includes a transmission component (5), which is connected between the output end of the drive component (2) and the grounding component (1).

4. The vehicle assistance device for getting out of trouble according to claim 3, characterized in that, The drive assembly (2) is a linear drive, and the transmission assembly (5) includes a rack (50) and a gear (51). The output end of the drive assembly (2) is connected to the rack (50), the rack (50) meshes with the gear (51), the gear (51) is rotatably mounted on the base assembly (4) and fixedly connected to the grounding assembly (1); the drive assembly (2) is used to drive the rack (50) to move along its length direction, and the gear (51) is used to rotate under the drive of the rack (50) to drive the grounding assembly (1) to rotate relative to the vehicle body.

5. The vehicle assistance device for getting out of trouble according to claim 4, characterized in that, The transmission assembly (5) also includes a movable plate (52), which is disposed on one side of the base assembly (4) and fixedly connected to the output end of the drive assembly (2), and the rack (50) is fixed on the movable plate (52).

6. The vehicle assistance device for getting out of trouble according to claim 5, characterized in that, A guide rail structure (6) is provided between the base assembly (4) and the movable plate (52). The guide rail structure (6) includes a slider (61) and a guide rail (60) extending along the length direction of the rack (50). One of the guide rail (60) and the slider (61) is fixedly connected to the base assembly (4), and the other is fixedly connected to the movable plate (52). The slider (61) is slidably connected to the guide rail (60).

7. The vehicle assistance device for getting out of trouble according to claim 5, characterized in that, The drive assembly (2) is a cylinder, and an air source assembly (7) is installed on the side of the movable plate (52) opposite to the base assembly (4), and the air source assembly (7) is connected to the drive assembly (2).

8. The vehicle assistance device for getting out of trouble according to claim 2, characterized in that, The base assembly (4) is detachably connected to the body of the vehicle (3) via the positioning assembly (9); The positioning component (9) includes a first engaging member (90), a second engaging member (91), and a fastener (92). The first engaging member (90) and the second engaging member (91) are both annular structures with a notch on one side. The first engaging member (90) and the second engaging member (91) are respectively used to engage with two bumper reinforcing bars (30) in opposite positions. The notch side of the first engaging member (90) can pass through the notch of the second engaging member (91) and extend into the interior of the second engaging member (91). The fastener (92) is used to fix the first engaging member (90), the second engaging member (91), and the base component (4) in sequence.

9. The vehicle assistance device for getting out of trouble according to any one of claims 1-8, characterized in that, The grounding assembly (1) includes a grounding drive (10) and a grounding support (11). The output end of the drive assembly (2) is connected to the ground drive member (10). One end of the ground drive member (10) is the hinge end, and the other end is connected to the ground support member (11). The side of the ground support member (11) away from the ground drive member (10) is the grounding part. The ground drive member (10) can extend and retract to drive the ground support member (11) to move relative to the hinge end.

10. The vehicle assistance device for getting out of trouble according to any one of claims 1-8, characterized in that, It also includes an angle detection component (12) and a control component (40); The angle detection element (12) is connected to the grounding component (1) and is used to detect the rotation angle of the grounding component (1); The angle detection element (12) and the drive component (2) are both connected to the control component (40). The control component (40) has a preset angle. The control component (40) is used to receive the angle information detected by the angle detection element (12) and control the drive component (2) to stop working when the angle information is equal to the preset angle.

11. A car, characterized in that, Includes the vehicle assistance device for getting out of trouble as described in any one of claims 1-10.

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