Folding Arm Tire Gripping Mechanism and Wrecker

Abstract

The present invention relates to the technical field of road obstacle removal equipment, and particularly relates to a folding arm tire-holding mechanism and a breakdown truck. The folding arm tire-holding mechanism includes a vertically moving frame and a set of fork assemblies arranged on the vertically moving frame. The fork assembly includes a sliding support, a swing cylinder, and a pair of folding arm fork assemblies. One end of the folding arm fork assembly is rotatably connected to the sliding support, and the other end extends horizontally away from the sliding support. The cylinder barrel of the swing cylinder is rotatably connected to one end of the folding arm fork assembly close to the sliding support, and the cylinder rod of the swing cylinder is rotatably connected to one end of the other folding arm fork assembly close to the sliding support. Through the cooperation of the specially designed fork assemblies, the present invention can realize the adjustment of the horizontal distance, angle, length, etc. of each fork assembly to cope with the clamping, lifting, shifting and other actions of different vehicle models, so as to meet the breakdown operations of different vehicle models and ensure the safety and effectiveness during breakdown.

Description

Technical Field

[0001] The present invention relates to the technical field of road obstacle removal equipment, and particularly to a folding arm tire holding mechanism and a road wrecker equipped with the folding arm tire holding mechanism. Background Art

[0002] Road wreckers are essential auxiliary equipment in modern transportation. To handle the obstacle removal work on complex road surfaces, some existing road wreckers are provided with forklift mechanisms on their sides or tails.

[0003] However, the forklift mechanisms of existing road wreckers have a relatively simple structure and can only achieve the lifting, translation, and telescopic movements of the telescopic forks. They cannot adjust the distance between the two telescopic forks for different vehicle models. In order to deal with longer vehicle models, two sets of forklift mechanisms are set up. At the same time, these forklift mechanisms generally can only lift the vehicle body or the vehicle tire separately and cannot be flexibly adjusted according to the actual situation. Summary of the Invention

[0004] In view of the above problems, the present invention provides a folding arm tire holding mechanism and a road wrecker equipped with the folding arm tire holding mechanism, which can realize various actions of the fork assembly, can realize lifting at different positions and in different ways, so as to cope with the obstacle removal operations of different vehicle models and ensure safety during obstacle removal.

[0005] The present invention is realized by the following technical solutions:

[0006] The present invention provides a folding arm tire holding mechanism, including a vertically moving frame and a set of fork assemblies arranged on the vertically moving frame. The fork assemblies are symmetrically arranged on both sides of the vertically moving frame. The fork assembly includes a sliding support, a swing oil cylinder, and a pair of folding arm fork assemblies. One end of the folding arm fork assembly is rotatably connected to the sliding support, and the other end extends horizontally away from the sliding support. The cylinder barrel of the swing oil cylinder is rotatably connected to one end of one folding arm fork assembly close to the sliding support, and the cylinder rod of the swing oil cylinder is rotatably connected to one end of the other folding arm fork assembly close to the sliding support. The swing oil cylinder can drive the two folding arm fork assemblies to rotate around the sliding support, so that the two folding arm fork assemblies are parallel to each other, or the two folding arm fork assemblies are unfolded in a V shape, or the two folding arm fork assemblies are in the same straight line.

[0007] In order to enable the folding arm fork assembly to achieve extension and elongation, thereby further expanding the range of vehicle models applicable to this folding arm tire-holding mechanism, the folding arm fork assembly includes a swing arm, a folding arm, and a folding arm oil cylinder. One end of the swing arm is rotatably connected to a sliding support. The cylinder barrel of the swing oil cylinder is rotatably connected to one end of the swing arm close to the sliding support, and the piston rod of the swing oil cylinder is rotatably connected to one end of the other swing arm close to the sliding support. The swing oil cylinder can drive the two swing arms to rotate around the sliding support. One end of the folding arm is rotatably connected to the other end of the swing arm away from the sliding support. The cylinder barrel of the folding arm oil cylinder is rotatably connected inside the swing arm, and the piston rod of the folding arm oil cylinder extends outside the swing arm and is rotatably connected to the folding arm. The folding arm oil cylinder can drive the folding arm to rotate around the swing arm, so that the folding arm abuts against the swing arm or the folding arm and the swing arm are in a straight line.

[0008] In order to enable the present invention to adapt to different vehicle body lengths, a set of guide rods extending horizontally are respectively fixed on both sides of the vertical moving frame. The sliding support is slidably connected to the guide rods through a plurality of sliders. An extension oil cylinder is arranged on the sliding support. The cylinder barrel of the extension oil cylinder is fixed to the sliding support, and the piston rod of the extension oil cylinder is rotatably connected to the vertical moving frame. The extension oil cylinder can drive the sliding support to slide horizontally along the guide rods.

[0009] In order to facilitate the assembly of each component, the sliding support includes a first sliding support perpendicular to the horizontal plane and a second sliding support parallel to the guide rods. The swing arm is rotatably connected to the second sliding support through a fork rotating shaft.

[0010] In order to enable the swing arm to support the tire to hold the tire and ensure the stability during forklift operation, downwardly inclined first support grooves are respectively formed on the opposite side end faces of the swing arm. The two first support grooves can support the front and rear sides of the tire of the vehicle to be rescued.

[0011] In order to enable the folding arm to support the tire to hold the tire and ensure the stability during forklift operation, downwardly inclined second support grooves are respectively formed on the opposite side end faces of the folding arm. The two second support grooves can support the front and rear sides of the tire of the vehicle to be rescued.

[0012] Since the total length of the folding arm and the swing arm is relatively long after the folding arm is extended, in order to prevent the folding arm and the swing arm from breaking, a number of parallel first reinforcing plates are arranged at one end of the opposite side end face of the swing arm, and an embedding groove is formed between adjacent two first reinforcing plates. A number of second reinforcing plates capable of being embedded in the embedding groove are arranged at one end of the opposite side end face of the folding arm.

[0013] To facilitate the flipping movement of the folding arm, the cylinder rod of the folding arm cylinder is connected to the folding arm and the swing arm through a folding link. The folding link includes an inner link and an outer link. One end of the inner link is rotatably connected to the swing arm, and the other end is rotatably connected to the cylinder rod of the folding arm cylinder. One end of the outer link is rotatably connected to the folding arm, and the other end is rotatably connected to the cylinder rod of the folding arm cylinder.

[0014] To realize the lifting of the entire folding arm tire clamping mechanism, the folding arm tire clamping mechanism further includes a lifting assembly. The lifting assembly includes a fixed frame and a lifting cylinder. The vertical moving frame is slidably connected to the fixed frame, and the lifting cylinder is connected to the vertical moving frame. The lifting cylinder can drive the vertical moving frame to lift up and down along the fixed frame.

[0015] The present invention also provides a breakdown truck, especially a side-position breakdown truck, on which the above-mentioned folding arm tire clamping mechanism is provided.

[0016] The beneficial effects of the present invention are as follows: Through the cooperation of the specially designed fork assemblies, the present invention can realize the adjustment of the horizontal distance, angle, length, etc. of each fork assembly to cope with the clamping, lifting, displacement and other actions of different vehicle models, so as to meet the breakdown operations of different vehicle models and ensure the safety and effectiveness during breakdown. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the folding arm tire clamping mechanism of the present invention;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the fork assembly of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the folding arm fork assembly of the present invention;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the folding arm tire clamping mechanism of the present invention before use;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the folding arm tire clamping mechanism of the present invention during use. Detailed Embodiments

[0022] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined. In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

[0023] Embodiment 1:

[0024] As Figure 1 shown, a folding arm tire holding mechanism includes a vertically moving frame 1 and a set of fork assemblies arranged on the vertically moving frame 1. The fork assemblies are symmetrically arranged on the left and right sides of the vertically moving frame 1. The fork assembly includes a sliding support 4, a swing oil cylinder 5 and a pair of folding arm fork assemblies 6. A set of guide rods 2 extending in the horizontal direction are respectively fixed on the left and right sides of the vertically moving frame 1. The sliding support 4 can slide along the guide rod 2. In addition, the folding arm tire holding mechanism further includes a lifting assembly. The lifting assembly includes a fixed frame 7 and a lifting oil cylinder 8. The vertically moving frame 1 is slidably connected along both sides of the fixed frame 7. The cylinder body of the lifting oil cylinder 8 is connected to the fixed frame 7, and the cylinder rod of the lifting oil cylinder 8 is connected to the vertically moving frame 1 through a sprocket assembly. The lifting oil cylinder 8 can drive the vertically moving frame 1 to move up and down along the fixed frame 7.

[0025] Specifically, in combination with Figure 2 shown, the sliding support 4 is slidably connected to the guide rod 2 through a plurality of sliders 403. The sliding support 4 includes a first sliding support 401 perpendicular to the horizontal plane and a second sliding support 402 parallel to the guide rod 2. The first sliding support 401 and the second sliding support 402 are made of square tubes. An extension oil cylinder 3 is arranged on the first sliding support 401. The cylinder barrel of the extension oil cylinder 3 is fixed to the first sliding support 401, and the cylinder rod of the extension oil cylinder 3 is rotatably connected to the side wall of the vertically moving frame 1 through a pin shaft. The extension oil cylinder 3 can drive the sliding support 4 to slide horizontally along the guide rod 2, realizing the adjustable distance between the two sets of fork assemblies.

[0026] Specifically, in combination with Figure 3As shown in the figure, the folding arm fork assembly includes a swing arm 601, a folding arm 602 and a folding arm oil cylinder 604. The rear end of the swing arm 601 is rotatably connected to the second sliding support 402 through a fork rotating shaft 603. The cylinder barrel of the swing oil cylinder 5 is rotatably connected to the rear end of one of the swing arms 601, and the cylinder rod of the swing oil cylinder 5 is rotatably connected to the rear end of the other swing arm 601. The swing oil cylinder 5 can drive the two swing arms 601 to rotate around the sliding support. The rear end of the folding arm 602 is rotatably connected to the front end of the swing arm 601. The cylinder barrel of the folding arm oil cylinder 604 is rotatably connected inside the swing arm 601, and the cylinder rod of the folding arm oil cylinder 604 extends outside the swing arm 601 and is connected to the folding arm 602 and the swing arm 601 through a folding connecting rod. The folding connecting rod includes an inner connecting rod 605 and an outer connecting rod 606. One end of the inner connecting rod 605 is rotatably connected to the swing arm 601, and the other end is rotatably connected to the cylinder rod of the folding arm oil cylinder 604. One end of the outer connecting rod 606 is rotatably connected to the folding arm 602, and the other end is rotatably connected to the cylinder rod of the folding arm oil cylinder 604. The folding arm oil cylinder 604 can drive the folding arm 602 to rotate around the swing arm 601. In addition, downwardly inclined first support grooves 609 are respectively formed on the opposite side end faces (inner side end faces) of the swing arm 601, and downwardly inclined second support grooves 610 are respectively formed on the opposite side end faces (inner side end faces) of the folding arm 602. The first support grooves 609 and the second support grooves 610 can support the front and rear sides of the tire. At the same time, a plurality of parallel first reinforcing plates 607 are arranged at the front ends of the opposite side end faces of the swing arm 601, and an embedding groove is formed between two adjacent first reinforcing plates 607. A plurality of second reinforcing plates 608 capable of being embedded in the embedding groove are arranged at the rear ends of the opposite side end faces of the folding arm 602. Through the cooperation of the first reinforcing plates 607 and the second reinforcing plates 608, the strength of the entire folding arm fork assembly is enhanced after the folding arm 602 is unfolded.

[0027] Before use, the folding arm tire-holding mechanism of the present invention is as Figure 4 shown. Each folding arm fork assembly 6 is retracted and placed at the bottom of the vertical moving frame 1, occupying less space, and can be cooperated with a related lifting mechanism to place the folding arm fork assembly 6 flat on the breakdown truck.

[0028] During use, the lifting oil cylinder 8 of the lifting assembly drives the vertical moving frame 1 to descend along the fixed frame 7 to the corresponding position. The two expansion oil cylinders 3 drive the sliding support 4 to slide horizontally along the guide rod 2 to adjust the distance between the two fork assemblies to correspond to the vehicle model to be towed. Then, the two swing oil cylinders 5 drive the two folding arm fork assemblies 6 to rotate around the sliding support 4, and each folding arm fork assembly 6 deflects outwards. According to the actual situation, the relative angle of the folding arm fork assembly 6 can be controlled to make the folding arm fork assemblies 6 in the same group parallel to each other or in a V shape. The horizontal moving mechanism on the breakdown truck can drive the folding arm tire-holding mechanism to enter under the vehicle (frame), and the lifting assembly can lift the vehicle. Finally, each mechanism drives the vehicle to be transferred to the breakdown truck.

[0029] When clearing obstacles for some heavier and wider vehicle models, after the folding arm fork assembly 6 rotates to be parallel, each folding arm oil cylinder 604 drives each folding arm 602 to rotate around each swing arm 601, and finally each folding arm 602 and each swing arm 601 are in the same straight line. As Figure 5 shown, the horizontal movement mechanism on the breakdown truck can drive the folding arm tire-holding mechanism to enter the bottom of each vehicle tire. Four tires are supported by eight support grooves to achieve tire holding. When the lifting component operates, the vehicle can be lifted, and finally each mechanism drives the vehicle to be transferred onto the breakdown truck.

[0030] Embodiment 2:

[0031] This embodiment provides a breakdown truck, especially a side-position breakdown truck. The above-mentioned folding arm tire-holding mechanism is arranged on the side-position breakdown truck, which can cope with the breakdown operations of different vehicle models.

[0032] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting", "provided with", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Finally, it should be noted that the above embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the technical field of the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A folding arm tire holding mechanism, comprising a vertically moving frame and a set of fork assemblies arranged on the vertically moving frame, the fork assemblies being symmetrically arranged on both sides of the vertically moving frame, and characterized in that: The fork support assembly includes a sliding support, a swing cylinder and a pair of folding-arm fork assemblies. One end of each folding-arm fork assembly is rotatably connected to the sliding support, and the other end extends horizontally away from the sliding support. The cylinder barrel of the swing cylinder is rotatably connected to one end of one folding-arm fork assembly close to the sliding support, and the piston rod of the swing cylinder is rotatably connected to one end of the other folding-arm fork assembly close to the sliding support. The swing cylinder can drive the two folding-arm fork assemblies to rotate around the sliding support, so that the two folding-arm fork assemblies are parallel to each other, or the two folding-arm fork assemblies are unfolded in a V shape, or the two folding-arm fork assemblies are in a straight line. Each folding-arm fork assembly includes a swing arm, a folding arm and a folding-arm cylinder. One end of the swing arm is rotatably connected to the sliding support. The cylinder barrel of the swing cylinder is rotatably connected to one end of one swing arm close to the sliding support, and the piston rod of the swing cylinder is rotatably connected to one end of the other swing arm close to the sliding support. The swing cylinder can drive the two swing arms to rotate around the sliding support. One end of the folding arm is rotatably connected to the other end of the swing arm away from the sliding support. The cylinder barrel of the folding-arm cylinder is rotatably connected inside the swing arm, and the piston rod of the folding-arm cylinder extends outside the swing arm and is rotatably connected to the folding arm. The folding-arm cylinder can drive the folding arm to rotate around the swing arm, so that the folding arm rotates substantially in the horizontal direction, so that the folding arm abuts against the swing arm, or the folding arm and the swing arm are in a straight line. A set of guide rods extending in the horizontal direction are respectively fixed on both sides of the vertical moving frame. The sliding support is slidably connected to the guide rods through a plurality of sliders. An extension cylinder is arranged on the sliding support. The cylinder barrel of the extension cylinder is fixed to the sliding support, and the piston rod of the extension cylinder is rotatably connected to the vertical moving frame. The extension cylinder can drive the sliding support to slide horizontally along the guide rods.

2. The folding arm tire-holding mechanism according to claim 1, wherein: The sliding support includes a first sliding support perpendicular to the horizontal plane and a second sliding support parallel to the guide rods. The swing arm is rotatably connected to the second sliding support through a fork rotating shaft.

3. The folding arm tire holding mechanism according to claim 1, wherein: First support grooves inclined downward are respectively formed on the opposite side end faces of the swing arm. The two first support grooves can support the front and rear sides of the tires of the vehicle to be rescued.

4. The folding boom tire holding mechanism according to claim 3, characterized in that: Second support grooves inclined downward are respectively formed on the opposite side end faces of the folding arm. The two second support grooves can support the front and rear sides of the tires of the vehicle to be rescued.

5. The folding arm tire holding mechanism according to claim 4, wherein: A plurality of parallel first reinforcing plates are arranged at one end of the opposite side end face of the swing arm. Grooves are formed between adjacent two first reinforcing plates. A plurality of second reinforcing plates capable of being embedded in the grooves are arranged at one end of the opposite side end face of the folding arm.

6. The folding arm tire holding mechanism according to claim 4, characterized in that: The piston rod of the folding-arm cylinder is connected to the folding arm and the swing arm through a folding connecting rod. The folding connecting rod includes an inner connecting rod and an outer connecting rod. One end of the inner connecting rod is rotatably connected to the swing arm, and the other end is rotatably connected to the piston rod of the folding-arm cylinder. One end of the outer connecting rod is rotatably connected to the folding arm, and the other end is rotatably connected to the piston rod of the folding-arm cylinder.

7. The folding arm tire holding mechanism according to claim 1, characterized in that: The folding-arm tire-holding mechanism further includes a lifting assembly. The lifting assembly includes a fixing frame and a lifting cylinder. The vertical moving frame is slidably connected to the fixing frame. The lifting cylinder is connected to the vertical moving frame. The lifting cylinder can drive the vertical moving frame to move up and down along the fixing frame.

8. A wrecking truck, characterized in that: The breakdown truck is provided with a folding arm tire clamping mechanism as described in any one of claims 1-7.

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