Automobile escape device

Abstract

The utility model relates to an automobile escape device which comprises a gripper and a limiting stopper, the gripper can extend out of the outer edge of a wheel and is used for enabling an automobile to obtain road holding force, and the limiting stopper is used for limiting continuous movement of the gripper. The linkage part is movably connected with an automobile driving shaft and is used for driving the rotating part to rotate; when the rotating part rotates, the rotating part is used for enabling the gripper to extend out of the wheel. According to the automobile escape device, a driver does not need to get off the automobile for installation operation, so that the automobile escape device is not influenced by severe weather, when the linkage part of the automobile escape device rotates, the grippers extend out of the outer edges of the wheels and are in contact with the ground, and the grippers obtain road holding force under the action of automobile driving force, so that the automobile is escape. In addition, the use conditions of the parts can be checked at any time, and the parts can be replaced or maintained in time, so that the situation that the parts cannot be used in the escape process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle auxiliary tools, in particular to a vehicle escape device. Background Art

[0002] In the prior art, cars are mainly rescued through car rescue boards, air suspensions and electronic differential adjustment. By placing car rescue boards on muddy roads, the contact area with the ground can be increased, allowing the wheels to gain greater grip; the air suspension is constantly inflated and deflated, and combined with electronic differential braking technology and controllable power output, the driving force can be evenly distributed. However, the car rescue board needs to be manually placed after getting off the car, which is not only inconvenient, but also easy to cause the wheels to suddenly gain grip, causing danger. After use, the rescue board will be pressed into the mud by the car, which will increase the difficulty of recovery. Currently, only a few high-end cars are equipped with electronic differentials and air suspensions, which have high maintenance and use costs. When all four tires lose grip on a completely muddy road, this rescue mode loses its effect, and air suspension is not suitable for large vehicles.

[0003] The authorization announcement number is CN 210191009 U, the application date is 2019.07.12, and the utility model name is a vehicle escape device, including a mounting plate and a telescopic member, wherein the telescopic member is provided in plurality, the plurality of telescopic members are fixedly connected to the circumferential side wall of the mounting plate, and all the telescopic members extend along the radial direction of the mounting plate; the mounting plate is provided with a through hole corresponding to the threaded hole of the wheel hub, and the mounting plate is fixed to the outer side surface of the wheel hub by a locking member. The utility model solves the problem of wheel slippage and improves the possibility of vehicle escape.

[0004] In the above prior art, the car escape device has always been installed on the outer periphery of the wheel hub. However, when encountering a muddy road and needing to escape, the driver needs to get off the car and press the positioning pins on all the wheel hubs to make them withdraw from the positioning holes. Under the elastic force of the spring, the telescopic rod pops out, and then the positioning pin is manually clamped in another positioning hole to fix the extension of the telescopic rod. If encountering bad weather or other conditions that make it difficult for the driver to get off the car, the time for the car to escape will be extended.

[0005] In addition, because the spring, telescopic rod and positioning pin are always installed in the fixed tube, if there is any damage, it cannot be detected, and it is impossible to replace or repair it in time. In case of emergency, this car escape device may not be able to play its role. Utility Model Content

[0006] The utility model aims to provide a car escape device in view of the defects that the prior art requires manual operation, which makes it difficult for the driver to get off the car in bad weather, and the main parts of the car escape device are installed in a hidden place and cannot be replaced or repaired in time.

[0007] The technical solution provided by the utility model is:

[0008] A vehicle escape device, comprising:

[0009] Grippers, which extend outward from the outside of the wheels to help the car gain traction;

[0010] A limiter, which is used to limit the gripper from moving further;

[0011] The linkage part is movably connected to the driving shaft of the automobile and is used to drive the rotating part to rotate; when the rotating part rotates, it is used to make the gripper extend out of the wheel.

[0012] Furthermore, the linkage part includes a rotating shaft, which passes through the center hole of the wheel hub and can rotate relative to the wheel hub; the rotating shaft is fixedly connected to the rotating part; the rotating shaft is connected or disconnected with a coupling provided at the end of the vehicle drive shaft under the control of the escape control button.

[0013] Furthermore, a vehicle escape device also includes a hub disc fixedly connected to the wheel hub; the hub disc and the wheel hub maintain synchronous movement.

[0014] Furthermore, the rotating part includes a dial wheel, which is located at the center of the hub disk, fixedly connected to the rotating shaft, and can rotate relative to the hub disk.

[0015] Furthermore, there are no less than three grippers, which are evenly distributed on the outside of the thumbwheel and movably connected to the wheel hub; the grippers can extend out of the edge of the wheel, contact the ground to obtain grip, and can be retracted into the outer diameter of the wheel.

[0016] Furthermore, the thumbwheel has a plurality of protrusions, each of which corresponds to a gripper; the gripper is provided with a recessed portion matched with the protrusion; when the rotating shaft drives the protrusion to rotate, the protrusion and the recessed portion abut against each other, driving the gripper to extend out of the edge of the wheel or retract into the outer diameter of the wheel.

[0017] Furthermore, the wheel hub is provided with a return mechanism and a guide portion; one end of the return mechanism is fixed to the wheel hub, and the other end is fixed to the gripper; the gripper is provided with a slide groove used in conjunction with the guide portion; the gripper performs linear motion along the guide portion in the slide groove.

[0018] Furthermore, the limiter is located at the edge of the hub disc, and the portion in contact with the gripper is a smooth plane; the limiter is used to fix the distance that the gripper extends out of the edge of the wheel.

[0019] Furthermore, each of the grippers is provided with two recessed portions.

[0020] Furthermore, when the return mechanism is reset, the gripper retracts to within the outer diameter of the wheel; when the return mechanism is extended, the gripper extends out of the edge of the wheel by no less than 8 cm.

[0021] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0022] The automobile escape device adopted by the utility model does not require the driver to get off the vehicle to install and operate, and is therefore not affected by bad weather. The device is provided with a linkage part, a dial wheel and a gripper, and the linkage part is movably connected with the automobile drive shaft. When the linkage part rotates, the dial wheel is driven to rotate, and the dial wheel causes the gripper to extend out of the outer edge of the wheel and contact the ground. Under the action of the automobile driving force, the gripper obtains gripping force to enable the automobile to escape.

[0023] In addition, the dial and gripper are located on the outside of the wheel hub, so the usage of parts can be checked at any time, and replaced or repaired in time to avoid the situation where parts cannot be used during the escape process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a vehicle escape device in one embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the overall structure of a vehicle escape device at one angle in one embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the overall structure of a vehicle escape device in one embodiment of the present application from another angle;

[0027] Figure 4 This is a schematic diagram of the exploded structure of a vehicle escape device in one embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of a thumbwheel and gripper structure of a vehicle escape device in one embodiment of the present application;

[0029] Figure 6 This is a schematic structural diagram of a thumbwheel and a gripper of a vehicle escape device in one embodiment of the present application at another angle.

[0030] Explanation of the symbols in the schematic diagram:

[0031] Coupling 11, rotating shaft 12, bearing 13

[0032] The dial wheel 21, the protruding portion 211, the gripper 22, the slide groove 221, the first recessed portion 222, the second recessed portion 223, the return mechanism 23, and the guide portion 24;

[0033] Hub 3, center hole 31;

[0034] Wheel hub 4, limiter 5. DETAILED DESCRIPTION

[0035] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the drawings and embodiments.

[0036] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0037] In the prior art, a car escape plate is mainly used as a car escape board. By placing the car escape board on a muddy road, the contact area with the ground can be increased, allowing the wheels to gain greater grip. However, the car escape board needs to be placed manually by getting off the car, which is not only inconvenient, but also easy to cause the wheels to suddenly gain grip and cause danger. After use, the escape board will be pressed into the mud by the car, making it more difficult to recover it.

[0038] The automobile escape device of the present application includes a linkage part, a rotating part, a coupling 11, a gripper 22, a return mechanism 23, a guide part 24, a wheel hub 3, a center hole 31 located at the center of the wheel hub 3, a wheel hub disc 4, and a limiter 5.

[0039] The escape principle is as follows: the linkage part is movably connected with the automobile drive shaft. During normal driving of the automobile, the wheel hub 3 and the hub disk 4 fixed on the wheel hub 3 move synchronously. At this time, the gripper 22 is located within the outer diameter of the wheel, and the linkage part and the rotating part fixedly connected to the linkage part are disconnected from the coupling 11 provided at the end of the automobile drive shaft; when the automobile needs to be escaped, the escape control button is pressed, the linkage part is connected with the coupling 11 provided at the end of the automobile drive shaft, driving the rotating part to rotate, and the rotating part is used to extend the gripper 22 out of the wheel, and the gripper 22 obtains grip to get the automobile out of trouble.

[0040] More specifically, if Figure 4As shown, the linkage part includes a rotating shaft 12, the rotating part includes a thumbwheel 21, the coupling 11 is connected to the end of the vehicle drive shaft, and is located inside the wheel hub 3, and the coupling 11 moves synchronously with the vehicle drive shaft, and the rotating shaft 12 passes through the center hole 31 of the wheel hub 3, and is rotationally connected with the wheel hub disc 4 through the bearing 13. During normal driving of the vehicle, the wheel hub 3 rotates synchronously with the wheel hub disc 4, the rotating shaft 12 and the coupling 11 are in a disconnected state, and the rotating shaft 12 and the thumbwheel 21 are relatively stationary and do not rotate; when the vehicle needs to be unstuck, the driver turns on the unstuck control button, the rotating shaft 12 is connected to the coupling 11, and the vehicle driving force is transmitted from the vehicle drive shaft to the rotating shaft 12, the rotating shaft 12 drives the thumbwheel 21 to rotate, and the thumbwheel 21 drives the gripper 22 to extend out of the outer diameter of the wheel.

[0041] like Figure 4 As shown, the hub disc 4 is matched with the wheel hub 3 in size, and the outer surface of the hub disc 4 is provided with a dial 21, a gripper 22, a return mechanism 23, a guide portion 24 and a limiter 5; through holes are provided in the center of the hub disc 4 and the dial 21 to facilitate the rotation shaft 12 to pass through in sequence; the dial 21 is fixedly connected to one end of the rotation shaft 12, and the dial 21 can rotate relative to the hub disc 4.

[0042] like Figure 5 , Figure 6 As shown, the gripper 22 is provided with a slide groove 221, which is in the shape of an elongated strip and can be used in conjunction with a guide portion 24 fixed on the wheel hub disc 4 to form a slide groove area. The guide portion 24 has two parallel straight lines to ensure that the gripper 22 makes a linear motion in the slide groove area; one end of the return mechanism 23 is fixed on the wheel hub disc 4, and the other end is fixed on the gripper 22. The return mechanism 23 is preferably a spring, and the spring uses its elasticity to enable the gripper 22 to move linearly in the slide groove area; the limit groove 5 is fixed on the edge of the wheel hub disc 4, and is used to limit the gripper 22 from continuing to move and to fix the distance that the gripper 22 extends out of the wheel edge; when the gripper 22 abuts against the limiter 5, the gripper 22 is restricted from moving, and the driving force of the car is concentrated on the relatively stationary dial wheel 21 and the gripper 22, which makes it easier to get the car out of trouble, and the gripper 22 and the wheel

[0043] The contact part between the stopper 5 and the gripper 22 is a smooth plane, the number of the stopper 5 is the same as the number of the gripper 22, and the distance of the gripper 22 extending from the outer edge of the wheel is not less than 8cm. In order to ensure that the car can obtain stable grip when getting out of trouble, such as Figure 5 , Figure 6 As shown, at least three grippers 22 are provided, the dial 21 is provided with a plurality of protrusions 211 , each protrusion 211 corresponds to a gripper 22 , and each gripper 22 is further provided with two recesses, namely a first recess 222 and a second recess 223 .

[0044] The method of using the device is as follows: when the car is trapped and skidding, the driver applies the brakes, the wheels are in a locked state, the wheel hub 3 and the wheel hub plate 4 no longer rotate, the driver turns on the escape control button, the rotating shaft 12 is connected with the coupling 11, the car drive shaft drives the coupling 11 and the rotating shaft 12 to rotate clockwise, the rotating shaft 12 drives the dial wheel 21 to rotate clockwise, the raised portion 211 of the dial wheel 21 abuts against the first recessed portion 222 of the gripper 22, the spring is stretched, and the gripper 22 is released. 22 extends out of the outer diameter of the wheel until it abuts against the limit groove 5, and the driving force of the car is transferred to the gripper 22, which makes it contact with the ground to obtain grip for getting the car out of trouble; after the car is out of trouble, the driver shifts the car into reverse gear, and the car drive shaft drives the coupling 11 together with the rotating shaft 12 to rotate counterclockwise, and the rotating shaft 12 drives the dial 21 to rotate counterclockwise, and the protrusion 211 of the dial 21 abuts against the second recessed portion 223 of the gripper 22, and the spring is finally reset, and the gripper 22 retracts to within the outer diameter of the wheel.

[0045] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A vehicle escape device, characterized in that: include: A gripper (22), which can extend out of the outer edge of the wheel to enable the vehicle to gain grip; A stopper (5), the stopper (5) is used to limit the gripper (22) from continuing to move; The linkage part is movably connected to the vehicle drive shaft and is used to drive the rotating part to rotate; when the rotating part rotates, it is used to make the gripper (22) extend out of the wheel.

2. The vehicle escape device according to claim 1, characterized in that: The linkage part comprises a rotating shaft (12), the rotating shaft (12) passes through a central hole (31) of the wheel hub (3) and is rotatable relative to the wheel hub (3); the rotating shaft (12) is fixedly connected to the rotating part; the rotating shaft (12) is connected to or disconnected from a coupling (11) provided at the end of the vehicle drive shaft under the control of an escape control button.

3. The vehicle escape device according to claim 2, characterized in that: It also comprises a hub disc (4) fixedly connected to the hub (3); the hub disc (4) and the hub (3) maintain synchronous movement.

4. The vehicle escape device according to claim 3, characterized in that: The rotating part comprises a dial wheel (21), which is located at the center of the wheel hub (4), fixedly connected to the rotating shaft (12), and can rotate relative to the wheel hub (4).

5. The vehicle escape device according to claim 4, characterized in that: There are no less than three grippers (22), which are evenly distributed on the outside of the thumbwheel (21) and movably connected to the wheel hub (4); the grippers (22) can extend out of the wheel edge to contact the ground to obtain grip, and can be retracted into the outer diameter of the wheel.

6. The vehicle escape device according to claim 4, characterized in that: The thumbwheel (21) has a plurality of protrusions (211), each of the protrusions (211) corresponding to a gripper (22); the gripper (22) is provided with a recessed portion adapted to the protrusion (211); when the rotating shaft (12) drives the protrusion (211) to rotate, the protrusion (211) abuts against the recessed portion, driving the gripper (22) to extend out of the wheel edge or retract into the wheel outer diameter.

7. The vehicle escape device according to claim 6, characterized in that: The wheel hub (4) is provided with a return mechanism (23) and a guide portion (24); one end of the return mechanism (23) is fixed to the wheel hub (4), and the other end is fixed to the gripper (22); the gripper (22) is provided with a slide groove (221) used in conjunction with the guide portion (24); the gripper (22) performs linear motion in the slide groove (221) along the guide portion (24).

8. The vehicle escape device according to claim 3, characterized in that: The stopper (5) is located at the edge of the wheel hub (4), and the portion in contact with the gripper (22) is a smooth plane; the stopper (5) is used to fix the distance that the gripper (22) extends out from the wheel edge.

9. The vehicle escape device according to claim 6, characterized in that: Each of the grippers (22) is provided with two recessed parts.

10. The vehicle escape device according to claim 7, characterized in that: When the return mechanism (23) is reset, the gripper (22) is retracted to within the outer diameter of the wheel; when the return mechanism (23) is extended, the gripper (22) extends beyond the edge of the wheel by a distance of not less than 8 cm.

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