A vehicle auxiliary device for automatically escaping a dump truck from a pit

Abstract

The present invention discloses an automobile auxiliary device for automatically escaping a dump truck from a pit, comprising a wedge-shaped support platform, a cubic platform, and a hydraulic cylinder; one side of the cubic platform is connected to a top surface rotation pair of the wedge-shaped support platform; the end of the piston rod of the hydraulic cylinder is hinged with a side of the cubic platform close to the wedge-shaped support platform through a connecting piece; the upper and lower ends of the piston cylinder of the hydraulic cylinder are respectively connected to a set of high-pressure oil circuits, and the two sets of high-pressure oil circuits are respectively oil inlet at the upper end and oil outlet at the lower end; a fixing bolt is installed at the top of the piston cylinder, and two sets of fixing ears are provided on the side of the cubic platform away from the wedge-shaped support platform, and the fixing ears and the cubic platform are an integrated structure; the outer side of the cubic platform is connected to the wedge-shaped support platform through a tension spring. The present invention can help the wheel lift while also allowing the car to drive out of the pit by itself, and is simple and easy to process, and convenient to assemble and disassemble.

Description

Technical Field

[0001] The invention belongs to the field of automobile auxiliary devices, and in particular relates to an automobile auxiliary device which enables an automobile to automatically escape from a pit. Background Art

[0002] A dump truck is a vehicle that unloads goods by itself by hydraulically driving the piston rod to rise and fall, also known as a dump truck. It is composed of a car chassis, a hydraulic lifting mechanism, a cargo compartment, and a power take-off device. Due to its large working load-bearing capacity, dump trucks are often used in civil engineering in conjunction with excavators, loaders, belt conveyors and other engineering machinery to form a loading, transporting and unloading production line, and are used in the loading and unloading of earth, sand, gravel, and bulk materials, as well as in the process of carrying heavy freight. Since the working environment is often in undeveloped areas or muddy dirt roads, and since the total weight of the vehicle after loading is usually large, the rear tires of the car often fall into sand pits or seemingly harmless but actually soft dirt pits. Especially in the high-altitude cold areas of Northeast and Northwest my country, due to the long-term ice and snow weather in winter, vehicles often get stuck in pits due to their own excessive weight during driving. In the existing technology, car pits are mostly aimed at light family cars that get stuck in pits. The lifting equipment has a complex structure and only lifts the car tires out. In order to completely get out of the pit, a hard plate needs to be laid. Although it can finally get out of the pit, the process is always unsatisfactory. Summary of the invention

[0003] In view of the deficiencies and difficulties in the prior art, the present invention aims to provide a vehicle auxiliary device which can be remotely controlled in the cab, is easy to use, has a simple structure, and helps a dump truck to rise and get out of a pit.

[0004] The present invention is achieved through the following technical solutions:

[0005] An automobile auxiliary device for automatically escaping a dump truck from a pit comprises a wedge-shaped support platform, a cubic platform and a hydraulic cylinder; one side of the cubic platform is connected to a rotating pair on the top surface of the wedge-shaped support platform; the end of a piston rod of the hydraulic cylinder is hinged to a side of the cubic platform close to the wedge-shaped support platform through a connecting piece; the upper and lower ends of the piston cylinder of the hydraulic cylinder are respectively connected to a group of high-pressure oil circuits, and the two groups of high-pressure oil circuits are respectively oil inlet at the upper end and oil outlet at the lower end; a fixing bolt is installed on the top of the piston cylinder, and two groups of fixing ears are provided on the side of the cubic platform away from the wedge-shaped support platform, and the fixing ears and the cubic platform are an integrated structure; the outer side of the cubic platform is connected to the wedge-shaped support platform through a tension spring.

[0006] Furthermore, a plurality of connecting bosses are fixedly provided on one side of the cubic platform close to the wedge-shaped supporting platform, a cylindrical connecting rod is horizontally provided on the top surface of the wedge-shaped supporting platform, and the connecting bosses are hinged to the connecting rod.

[0007] Furthermore, the end of the piston rod of the hydraulic cylinder is connected to the side of the cubic platform close to the wedge-shaped support platform through a connecting piece, and the connecting piece is a pin and two sets of spaced ribs. The two sets of ribs are fixedly connected to the cubic platform. The pin passes through the end of the piston rod and is horizontally mounted between the two sets of ribs.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] (1) The present invention is a car auxiliary device that enables the driver to remotely and quickly perform effective self-rescue and escape danger in the cab when the car is accidentally stuck in a pothole under adverse road conditions such as bad weather, ice and snow, or muddy roads. The device can help lift the wheels and also allow the car to drive out of the pothole by itself.

[0010] (2) The present invention can also be applied to the case where the front wheels of a vehicle are braked when the tire is replaced, and the rear of the vehicle is lifted up by the present invention in combination with a jack, thereby providing further safe and effective personal safety protection for the operator during the tire replacement process.

[0011] (3) The present invention adopts a unique new structural design and assembly, which is simple and easy to process, and convenient to assemble and disassemble.

[0012] (4) The present invention can be driven by the hydraulic pump of the vehicle, and the lifting process is controlled by high-pressure oil to achieve slow lifting during the working process. The hydraulic power adopts a two-way locking circuit control using a hydraulically controlled one-way valve, and uses the vehicle's own hydraulic pump to supply oil, avoiding additional oil supply devices, achieving the purpose of simple installation and guaranteed oil supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the implementation state of the present invention, wherein: Figure 2 (a) is a schematic diagram of the structure of the device when it is contracted and not working. Figure 2 (b) is a schematic diagram of the structure when the device is opened and working.

[0015] Illustration: 1-fixing bolt, 2-piston cylinder, 3-pin shaft, 4-piston rod, 5-rib plate, 6-connecting boss, 7-connecting rod, 8-wedge-shaped support platform, 9-tension spring, 10-cubic platform, 11-fixing ear, 12-high-pressure oil circuit.

[0016] In the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection; it can be a mechanical connection, an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, an automobile auxiliary device for automatically escaping a dump truck from a pit comprises a wedge-shaped support platform 8, a cubic platform 10, and a hydraulic cylinder.

[0020] One side of the cubic platform 10 is connected to the top surface rotation pair of the wedge-shaped support platform 8. Specifically, a plurality of groups of connecting bosses 6 are fixedly provided on one side of the cubic platform 10 close to the wedge-shaped support platform 8. A connecting rod 7 is horizontally provided on the top surface of the wedge-shaped support platform 8. The connecting boss 6 is hinged to the connecting rod 7. The front end of the cubic platform 10 is rotatably connected to the top of the wedge-shaped support platform 8 by a cylindrical connecting rod 7 to achieve the purpose of synchronous movement in the vertical and horizontal directions.

[0021] The end of the piston rod 4 of the hydraulic cylinder is connected to the side of the cubic platform 10 close to the wedge-shaped support platform 8 through a connecting piece, and the connecting piece is a pin 3 and two groups of spacer ribs 5. The two groups of ribs 5 are fixedly connected to the cubic platform 10. The pin 3 passes through the end of the piston rod 4 and is horizontally mounted between the two groups of ribs 5, so that the piston rod 4 can rotate relative to the cubic platform 10, and the two form a rotatable fixed connection.

[0022] The piston cylinder 2 of the hydraulic cylinder is connected to a set of high-pressure oil circuits 12 at the upper and lower ends, respectively. The two sets of high-pressure oil circuits 12 are respectively for oil inlet at the upper end and oil outlet at the lower end. In the specific implementation, the vehicle's own hydraulic pump is used for oil supply and drive, and the lifting process is controlled by high-pressure oil to achieve slow lifting during the working process. The hydraulic power adopts a two-way locking circuit control using a hydraulically controlled one-way valve, and uses the vehicle's own hydraulic pump to supply oil, avoiding additional oil supply devices, achieving the purpose of simple installation and guaranteed oil supply.

[0023] A fixing bolt 1 is installed at the top end of the piston cylinder 2. In specific implementation, the fixing bolt 1 is used to be fixedly connected to the vehicle to ensure the stability of the device itself.

[0024] The outer side of the cubic platform 10 is connected to the wedge-shaped support platform 8 through a tension spring 9, and the tension spring 9 is used to ensure the direction and position of the wedge-shaped support plate to achieve a good supporting effect and a quick reset to save the space occupied by the device.

[0025] Two sets of fixing ears 11 are provided on the side of the cubic platform 10 away from the wedge-shaped support platform 8. The fixing ears 11 and the cubic platform 10 are an integrated structure. In specific implementation, the fixing ears 11 are connected to a suitable position of the rear of the car. The connection is required to avoid left and right movement as much as possible, but can ensure smooth radial rotation when subjected to force.

[0026] The working process of the present invention is as follows:

[0027] The fixing bolt 1 and the fixing ear 11 in the device of the present invention are connected to the car through fasteners respectively; the fixing ear 11 is connected to the rear of the car, and the fixing bolt 1 is connected to the bottom of the car at the rear;

[0028] When the rear wheel of the car falls into the pit, oil is supplied to the hydraulic cylinder through the car's own oil tank, and oil enters through the upper high-pressure oil pipe and exits from the lower end. Driven by the hydraulic pressure, the piston rod 4 is pushed out, and the cubic platform 10 rotates around it with the fixed ear 11 as the fulcrum; during the rotation process, the wedge-shaped support platform 8 gradually descends under the action of the tension spring 9, and the wedge-shaped support platform 8 rotates relative to the cubic platform 10, achieving a good transition process in which the front end contacts the ground first. After the wedge-shaped surface of the wedge-shaped support platform 8 is completely in contact with the ground, the piston cylinder 2 continues to extend outward. Due to the action of the wedge-shaped surface, the vehicle can not only be lifted upward, but also can be pushed forward by the action of force until it passes the pit; when the car is in a safe position, the oil inlet at the lower end and the oil outlet at the upper end of the high-pressure oil pipe are controlled by the switch, the piston rod 4 is retracted, and the entire device is restored to the initial position, and the car continues to drive normally.

[0029] The above only expresses the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An automobile auxiliary device for automatically escaping a dump truck from a pit, characterized in that: It comprises a wedge-shaped support platform (8), a cubic platform (10), and a hydraulic cylinder; one side of the cubic platform (10) is connected to a top surface rotation pair of the wedge-shaped support platform (8); the end of the piston rod (4) of the hydraulic cylinder is hinged to the side of the cubic platform (10) close to the wedge-shaped support platform (8) through a connecting piece; the upper and lower ends of the piston cylinder (2) of the hydraulic cylinder are respectively connected to a group of high-pressure oil circuits (12), and the two groups of high-pressure oil circuits (12) are respectively for oil inlet at the upper end and oil outlet at the lower end; a fixing bolt (1) is installed at the top end of the piston cylinder (2), and two groups of fixing ears (11) are provided on the side of the cubic platform (10) away from the wedge-shaped support platform (8), and the fixing ears (11) and the cubic platform (10) are an integrated structure; the outer side of the cubic platform (10) is connected to the wedge-shaped support platform (8) through a tension spring (9); The connecting member is a pin (3) and two groups of spaced ribs (5), the two groups of ribs (5) are fixedly connected to the cubic platform (10), and the pin (3) passes through the end of the piston rod (4) and is horizontally mounted between the two groups of ribs (5); so that the piston rod (4) can rotate relative to the cubic platform (10), and the two form a rotatable fixed connection; A plurality of groups of connecting bosses (6) are fixedly provided on one side of the cubic platform (10) close to the wedge-shaped support platform (8), and a cylindrical connecting rod (7) is horizontally provided on the top surface of the wedge-shaped support platform (8).

2. The automobile auxiliary device for automatically escaping a dump truck from a pit according to claim 1, characterized in that: The connecting boss (6) is hingedly connected to the connecting rod (7).

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