Folding arm tire holding mechanism and wrecker

Abstract

The invention relates to the technical field of road obstacle removing equipment, in particular to a folding arm tire holding mechanism and a wrecker, the folding arm tire holding mechanism comprises a vertical moving frame and a set of supporting fork assemblies arranged on the vertical moving frame, and each supporting fork assembly comprises a sliding support, a swing oil cylinder and a pair of folding arm type supporting fork assemblies; one end of each folding arm type supporting fork assembly is rotationally connected with the sliding support, the other end of each folding arm type supporting fork assembly horizontally extends in the direction away from the sliding support, a cylinder barrel of the swing oil cylinder is rotationally connected with the end, close to the sliding support, of one folding arm type supporting fork assembly, and a cylinder rod of the swing oil cylinder is rotationally connected with the end, close to the sliding support, of the other folding arm type supporting fork assembly. Through cooperation of the specially-designed supporting fork assemblies, horizontal distance adjustment, angle adjustment, length adjustment and the like of all the supporting fork assemblies can be achieved so as to cope with clamping, lifting, shifting and other actions of different vehicle types, therefore, obstacle removing work of the different vehicle types can be met, and safety and effectiveness during obstacle removing are guaranteed.

Description

Technical Field

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

[0002] Road tow trucks are essential supporting equipment in modern transportation. In order to deal with the tow work on complex roads, some existing tow trucks are equipped with forklift mechanisms on their sides or tails.

[0003] However, the forklift mechanism structure of the existing road tow truck is relatively simple, and can only realize the lifting, translation and telescopic movement of the telescopic fork. The distance between the two telescopic forks cannot be adjusted for different vehicle models. In order to target longer vehicle models, two sets of forklift mechanisms are provided. At the same time, these forklift mechanisms can generally only lift the vehicle body or the tire alone, and cannot be flexibly adjusted according to actual conditions. Summary of the invention

[0004] In view of the above problems, the present invention proposes a folding-arm tire holding mechanism and a tow truck equipped with the folding-arm tire holding mechanism, which can realize multiple modes of movement of the fork assembly and can realize lifting in different positions and modes to cope with towing operations of different types of vehicles and ensure safety during towing.

[0005] The present invention is achieved through the following technical solutions: The present invention provides a folding-arm tire holding mechanism, comprising a vertical moving frame and a group of fork assemblies arranged on the vertical moving frame, the fork assemblies are symmetrically arranged on both sides of the vertical moving frame, the fork assemblies comprise a sliding support, a swinging oil cylinder and a pair of folding-arm type fork assemblies, one end of the folding-arm type fork assembly is rotatably connected to the sliding support, and the other end extends horizontally in a direction away from the sliding support, the cylinder barrel of the swinging oil cylinder is rotatably connected to one end of one of the folding-arm type fork assemblies close to the sliding support, the cylinder rod of the swinging oil cylinder is rotatably connected to one end of the other folding-arm type fork assembly close to the sliding support, the swinging oil cylinder can drive the two folding-arm type fork assemblies to rotate around the sliding support, so that the two folding-arm type fork assemblies are parallel to each other, or the two folding-arm type fork assemblies are spread out in a V shape, or the two folding-arm type fork assemblies are on the same straight line.

[0006] In order to enable the folding arm type fork support assembly to be extended and lengthened, thereby further improving the vehicle types that the folding arm tire holding mechanism is applicable to, the folding arm type fork support 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 of the swing arms close to the sliding support, the cylinder 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, the cylinder rod of the folding arm cylinder extends outside the swing arm and is rotatably connected to the folding arm, and the folding arm cylinder can drive the folding arm to rotate around the swing arm, so that the folding arm and the swing arm are abutted against each other, or the folding arm and the swing arm are in the same straight line.

[0007] In order to enable the present invention to adapt to different vehicle body lengths, a group of guide rods extending in the horizontal direction are fixed on both sides of the vertical moving frame, the sliding support is slidably connected to the guide rods through a plurality of sliders, and an extension cylinder is arranged on the sliding support. The cylinder barrel of the extension cylinder is fixed to the sliding support, and the cylinder 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.

[0008] In order to facilitate the assembly of various components, the sliding support includes a first sliding support perpendicular to the horizontal plane and a second sliding support parallel to the guide rod, and the swing arm is rotatably connected to the second sliding support through a support fork shaft.

[0009] In order to enable the swing arm to support the tire and ensure the stability of the forklift, downwardly inclined first support grooves are respectively opened on the opposite side end faces of the swing arm, and the two first support grooves can support the front and rear sides of the tire of the rescued vehicle.

[0010] In order to enable the folding arm to support the tire and ensure the stability of the forklift, the opposite side end surfaces of the folding arm are respectively provided with downwardly inclined second support grooves, and the two second support grooves can support the front and rear sides of the tire of the rescued vehicle.

[0011] 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 plurality of parallel first reinforcing plates are provided at one end of the opposite side end surface of the swing arm, and an embedding groove is formed between two adjacent first reinforcing plates, and a plurality of second reinforcing plates that can be embedded in the embedding groove are provided at one end of the opposite side end surface of the folding arm.

[0012] In order to facilitate the flipping action 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 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 cylinder 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 cylinder rod of the folding arm cylinder.

[0013] In order to realize the lifting and lowering of the entire folding arm tire holding mechanism, the folding arm tire holding mechanism also includes a lifting assembly, which includes a fixed frame and a lifting cylinder. The vertical moving frame is slidably connected along 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.

[0014] The present invention also provides a tow truck, in particular a side tow truck, on which the above-mentioned folding-arm tire-holding mechanism is provided.

[0015] The beneficial effects of the present invention are as follows: the present invention can realize horizontal distance adjustment, angle adjustment, length adjustment, etc. of each fork assembly through the cooperation of specially designed fork assemblies to cope with the clamping, lifting, shifting and other actions of different vehicle models, thereby meeting the obstacle clearance operations of different vehicle models and ensuring the safety and effectiveness during obstacle clearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the folding arm tire holding mechanism of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the support fork assembly of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the folding arm type support fork assembly of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the folding arm tire holding mechanism of the present invention before use; Figure 5 It is a schematic diagram of the three-dimensional structure of the folding-arm tire-holding mechanism of the present invention when in use. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below 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 a clearer and more explicit definition of the protection scope of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc. are based on the orientations or positional relationships shown in the accompanying 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 therefore cannot be understood as a limitation on the present invention.

[0018] Embodiment 1: like Figure 1 The shown folding arm tire holding mechanism comprises a vertical moving frame 1 and a group of fork support assemblies arranged on the vertical moving frame 1, the fork support assemblies are symmetrically arranged on the left and right sides of the vertical moving frame 1, the fork support assemblies include a sliding support 4, a swing cylinder 5 and a pair of folding arm type fork support assemblies 6, and a group of guide rods 2 extending in the horizontal direction are respectively fixed on the left and right sides of the vertical moving frame 1, and the sliding support 4 can slide along the guide rods 2. In addition, the folding arm tire holding mechanism also includes a lifting assembly, and the lifting assembly includes a fixed frame 7 and a lifting cylinder 8. The vertical moving frame 1 is slidably connected along both sides of the fixed frame 7, the cylinder body of the lifting cylinder 8 is connected to the fixed frame 7, and the cylinder rod of the lifting cylinder 8 is connected to the vertical moving frame 1 through a sprocket assembly. The lifting cylinder 8 can drive the vertical moving frame 1 to move up and down along the fixed frame 7.

[0019] Specifically, combined Figure 2 As 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 cylinder 3 is arranged on the first sliding support 401. The cylinder barrel of the extension cylinder 3 is fixed to the first sliding support 401. The cylinder rod of the extension cylinder 3 is rotatably connected to the side wall of the vertical moving frame 1 through a pin shaft. The extension cylinder 3 can drive the sliding support 4 to slide horizontally along the guide rod 2, thereby realizing adjustable spacing between the two sets of fork assemblies.

[0020] Specifically, combined Figure 3As shown, the folding arm type 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 support 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. 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 end 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 to the inside of the swing arm 601, 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, and one end of the outer connecting rod 606 is rotatably connected to the swing arm 601. One end is rotatably connected to the folding arm 602, and the other end is rotatably connected to the cylinder rod of the folding arm cylinder 604. The folding arm cylinder 604 can drive the folding arm 602 to rotate around the swing arm 601. In addition, the opposite side end surfaces (inner side end surfaces) of the swing arm 601 are respectively provided with downwardly inclined first support grooves 609, and the opposite side end surfaces (inner side end surfaces) of the folding arm 602 are respectively provided with downwardly inclined second support grooves 610. 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, the front end of the opposite side end surface of the swing arm 601 is provided with a plurality of parallel first reinforcing plates 607, and an embedding groove is formed between two adjacent first reinforcing plates 607. The rear end of the opposite side end surface of the folding arm 602 is provided with a plurality of second reinforcing plates 608 that can be embedded in the embedding groove. The first reinforcing plates 607 cooperate with the second reinforcing plates 608 to enhance the strength of the entire folding arm type fork assembly after the folding arm 602 is unfolded.

[0021] Before use, the folding arm tire holding mechanism of the present invention is as follows Figure 4 As shown, each folding arm type fork assembly 6 is stored at the bottom of the vertical moving frame 1, taking up less space, and the folding arm type fork assembly 6 can be laid flat on the tow truck in conjunction with a related lifting mechanism; When in use, the lifting cylinder 8 of the lifting assembly drives the vertical moving frame 1 to descend to the corresponding position along the fixed frame 7, and the two extension cylinders 3 drive the sliding support 4 to slide horizontally along the guide rod 2 to adjust the spacing between the two sets of fork assemblies to make it correspond to the vehicle type required for towing. Then, the two swing cylinders 5 drive the two sets of folding arm fork assemblies 6 to rotate around the sliding support 4, and each folding arm fork assembly 6 deflects outward. According to actual conditions, the relative angle of the folding arm fork assembly 6 can be controlled to make the same set of folding arm fork assemblies 6 parallel to each other or in a V shape. The horizontal moving mechanism on the tow truck can drive the folding arm tire holding mechanism to enter the bottom of the vehicle (frame), and the lifting assembly can lift the vehicle. Finally, each mechanism drives the vehicle to be transferred to the tow truck; When clearing obstacles for heavier and wider vehicles, after the folding arm type fork assembly 6 rotates to be parallel, each folding arm 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, such as Figure 5 As shown, the horizontal moving mechanism on the tow truck can drive the folding arm tire holding mechanism to enter the bottom of each tire, and the eight supporting grooves support the four tires and realize the tire holding. The lifting component can lift the vehicle, and finally the various mechanisms drive the vehicle to be transferred to the tow truck.

[0022] Embodiment 2: The present embodiment provides a tow truck, in particular a side tow truck, which is provided with the above-mentioned folding arm tire holding mechanism and can cope with towing operations of different types of vehicles.

[0023] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. should 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; 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 be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A folding arm tire holding mechanism, comprising a vertical moving frame and a set of fork assemblies arranged on the vertical moving frame, wherein the fork assemblies are symmetrically arranged on both sides of the vertical moving frame, and characterized in that: The fork support assembly includes a sliding support, a swing cylinder and a pair of folding arm fork support assemblies. One end of the folding arm fork support 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 of the folding arm fork support assemblies close to the sliding support, and the cylinder rod of the swing cylinder is rotatably connected to another end of the folding arm fork support assembly close to the sliding support. The swing cylinder can drive the two folding arm fork support assemblies to rotate around the sliding support, so that the two folding arm fork support assemblies are parallel to each other, or the two folding arm fork support assemblies are expanded in a V shape, or the two folding arm fork support assemblies are on the same straight line.

2. The folding arm tire holding mechanism according to claim 1, characterized in that: The folding arm type 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 of the swing arms close to the sliding support, the cylinder 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, the cylinder rod of the folding arm cylinder extends outside the swing arm and is rotatably connected to the folding arm, and the folding arm cylinder can drive the folding arm to rotate around the swing arm, so that the folding arm and the swing arm are abutted against each other, or the folding arm and the swing arm are in the same straight line.

3. The folding arm tire holding mechanism according to claim 2, characterized in that: A group of guide rods extending in the horizontal direction are 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. The cylinder 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.

4. The folding arm tire holding mechanism according to claim 3, characterized in that: The sliding support comprises a first sliding support perpendicular to the horizontal plane and a second sliding support parallel to the guide rod, and the swing arm is rotatably connected to the second sliding support via a support fork rotating shaft.

5. The folding arm tire holding mechanism according to claim 3, characterized in that: The opposite side end surfaces of the swing arm are respectively provided with downwardly inclined first support grooves, and the two first support grooves can support the front and rear sides of the tire of the rescued vehicle.

6. The folding arm tire holding mechanism according to claim 5, characterized in that: The opposite side end surfaces of the folding arms are respectively provided with downwardly inclined second support grooves, and the two second support grooves can support the front and rear sides of the tire of the rescued vehicle.

7. The folding arm tire holding mechanism according to claim 6, characterized in that: One end of the opposite side end surface of the swing arm is provided with a plurality of parallel first reinforcing plates, and an embedding groove is formed between two adjacent first reinforcing plates. One end of the opposite side end surface of the folding arm is provided with a plurality of second reinforcing plates that can be embedded in the embedding groove.

8. The folding arm tire holding mechanism according to claim 5, characterized in that: The cylinder 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 cylinder 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 cylinder rod of the folding arm cylinder.

9. The folding arm tire holding mechanism according to claim 1, characterized in that: The folding arm tire holding mechanism also includes a lifting component, which includes a fixed frame and a lifting cylinder. The vertical moving frame is slidably connected along the fixed frame, and 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 fixed frame.

10. A tow truck, characterized in that: The tow truck is provided with a folding-arm tire-holding mechanism as described in any one of claims 1 to 9.

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