Automobile tailboard lifting arm structure

Abstract

The utility model relates to the technical field of logistics equipment, in particular to an automobile tailboard lifting arm structure which comprises a connecting rectangular pipe and two connecting assemblies, each connecting assembly comprises a plate head, a plate tail through sleeve, a rectangular pipe fitting, two shaft sleeves and a sealing plate, and the two connecting assemblies are symmetrically arranged at the two ends of the connecting rectangular pipe respectively. The plate head is welded to one end of the connecting rectangular pipe, the two shaft sleeves are welded to the two sides of the plate head respectively, one end of the rectangular pipe fitting is welded to a rectangular notch of the plate head, and the plate tail through sleeve penetrates through the other end of the rectangular pipe fitting. The plate head and the plate tail are connected through the rectangular pipe fitting, the weight is greatly reduced, the machining process is simplified, the production cost and the use cost are reduced, the plate head and the plate tail are connected through the rectangular pipe fitting, the section inertia moment of the plate web position is increased, the bending resistance of the lifting arm is enhanced, all the parts are connected in a welding mode, and the machining efficiency is improved. And the cavity is completely sealed, so that rust and corrosion can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics equipment, in particular to a lifting arm structure of a car tail plate. Background Art

[0002] The truck hydraulic tailgate installed at the rear of the truck is a mechatronic and hydraulic vehicle-mounted equipment that can improve loading and unloading efficiency and reduce the labor intensity of employees. The truck hydraulic tailgate is usually composed of the following parts, namely the large plate assembly, oil cylinder, lifting arm assembly, frame assembly and hanging plate assembly. The frame is fixed to the truck frame through the hanging plate, and the lifting arm plays the role of connecting and supporting the large plate, such as Figure 1 shown.

[0003] However, conventional lifting arms are made by laser cutting from a thick steel plate, which is heavy and has high manufacturing and operating costs. Utility Model Content

[0004] The utility model aims to provide a car tailgate lifting arm structure, which solves the problem that the conventional lifting arm in the prior art is formed by laser cutting a whole thick steel plate, has a large weight, and has high manufacturing cost and high use cost.

[0005] To achieve the above-mentioned purpose, the utility model provides a car tailgate lifting arm structure, including a connecting rectangular tube and two connecting components, each of the connecting components including a plate head, a plate tail sleeve, a rectangular tube fitting, two shaft sleeves and a sealing plate, the two connecting components are symmetrically arranged at the two ends of the connecting rectangular tube, the plate head is welded to one end of the connecting rectangular tube, the two shaft sleeves are respectively welded to the two sides of the plate head, one end of the rectangular tube fitting is welded to the rectangular notch of the plate head, the plate tail sleeve passes through the other end of the rectangular tube fitting and is welded to the other end of the rectangular tube fitting, and the sealing plate is welded to the end of the other end of the rectangular tube.

[0006] Wherein, the rectangular tube includes a middle rectangular tube, one end of the middle rectangular tube is welded to the rectangular notch of the plate head, the sealing plate includes an internal rectangular tube sealing plate, the internal rectangular tube sealing plate is welded to the other end of the middle rectangular tube, and the plate tail sleeve passes through one end of the middle rectangular tube away from the plate head and is welded to the middle rectangular tube.

[0007] Wherein, the rectangular tube includes two small rectangular tubes, one end of the two small rectangular tubes are respectively welded to the rectangular notch of the plate head, the sealing plate includes an external rectangular tube sealing plate, the external rectangular tube sealing plate is welded to the other end of the two small rectangular tubes, and the plate tail sleeve passes through one end of the two small rectangular tubes away from the plate head and is welded to the two small rectangular tubes.

[0008] The two sleeves are respectively welded to the two sides of the plate head and are coaxial with the circular hole above the plate head, and one end of the rectangular tube close to the plate head is welded to the connecting rectangular tube.

[0009] The utility model discloses a lifting arm structure of a tailgate of an automobile. The rectangular pipe fitting is used to connect the head and the tail of the board, which greatly reduces the weight, simplifies the processing technology, and reduces the production cost and the use cost. The rectangular pipe fitting is used to connect the head and the tail of the board, which increases the sectional inertia moment at the belly position of the board and enhances the bending resistance of the lifting arm. All parts are connected by welding, and the cavity is completely sealed, which can achieve rust and corrosion prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0011] Figure 1 The utility model is a schematic diagram of the structure of the lifting arm in the tail plate of a truck in the prior art.

[0012] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0013] Figure 3 It is an overall structural diagram of the second embodiment of the utility model.

[0014] Figure 4 It is an overall exploded view of the second embodiment of the present utility model.

[0015] Figure 5 It is a structural schematic diagram showing that the connecting rectangular tubes in the first embodiment of the utility model are replaced by connecting circular tubes.

[0016] 1-connecting rectangular tube, 2-board head, 3-board tail sleeve, 4-shaft sleeve, 5-middle rectangular tube, 6-inner rectangular tube sealing plate, 7-small rectangular tube, 8-outer rectangular tube sealing plate, 9-connecting round tube. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0018] First embodiment:

[0019] See also Figure 2 , Figure 2It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0020] The utility model provides a car tailgate lifting arm structure, comprising a connecting rectangular tube 1 and two connecting components, each of the connecting components comprising a plate head 2, a plate tail sleeve 3, a rectangular tube, two shaft sleeves 4 and a sealing plate, the rectangular tube comprising a middle rectangular tube 5, and the sealing plate comprising an inner rectangular tube sealing plate 6.

[0021] Among them, the two connecting components are symmetrically arranged at the two ends of the connecting rectangular tube 1, the plate head 2 is welded to one end of the connecting rectangular tube 1, the two shaft sleeves 4 are respectively welded to the two sides of the plate head 2, one end of the rectangular tube is welded to the rectangular notch of the plate head 2, the plate tail sleeve 3 passes through the other end of the rectangular tube and is welded to the other end of the rectangular tube, the sealing plate is welded to the end of the other end of the rectangular tube, one end of the middle rectangular tube 5 is welded to the rectangular notch of the plate head 2, the internal rectangular tube sealing plate 6 is welded to the other end of the middle rectangular tube 5, and the plate tail sleeve 3 passes through the end of the middle rectangular tube 5 away from the plate head 2 and is welded to the middle rectangular tube 5. The rectangular pipe fitting is used to connect the plate head 2 to the plate tail, which greatly reduces the weight, simplifies the processing technology, and reduces the production cost and the use cost. The rectangular pipe fitting is used to connect the plate head 2 to the plate tail, which increases the cross-sectional inertia moment at the plate belly position and enhances the bending resistance of the lifting arm. All parts are connected by welding, and the cavity is completely sealed to prevent rust and corrosion. The plate head 2, the plate tail sleeve 3 and the middle rectangular pipe 5 are welded together, which greatly reduces the weight while ensuring the performance.

[0022] Second embodiment:

[0023] Based on the first embodiment, please refer to Figure 3 and Figure 4 ,in, Figure 3 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 4 It is an overall exploded view of the second embodiment of the present utility model.

[0024] The utility model provides a car tailgate lifting arm structure, comprising a connecting rectangular tube 1 and two connecting components, each of the connecting components comprising a plate head 2, a plate tail sleeve 3, a rectangular tube, two shaft sleeves 4 and a sealing plate, the rectangular tube comprising two small rectangular tubes 7, and the sealing plate comprising an external rectangular tube sealing plate 8.

[0025] Among them, the two connecting components are symmetrically arranged at the two ends of the connecting rectangular tube 1, the plate head 2 is welded to one end of the connecting rectangular tube 1, the two shaft sleeves 4 are respectively welded to the two sides of the plate head 2, one end of the rectangular tube is welded to the rectangular notch of the plate head 2, the plate tail sleeve 3 passes through the other end of the rectangular tube and is welded to the other end of the rectangular tube, the sealing plate is welded to the end of the other end of the rectangular tube, one end of the two small rectangular tubes 7 are respectively welded to the rectangular notch of the plate head 2, the external rectangular tube sealing plate 8 is welded to the other end of the two small rectangular tubes 7, and the plate tail sleeve 3 passes through the end of the two small rectangular tubes 7 away from the plate head 2 and is welded to the two small rectangular tubes 7, the two shaft sleeves 4 are respectively welded to the two sides of the plate head 2 and are coaxial with the circular hole above the plate head 2, and the end of the rectangular tube welded close to the plate head 2 is welded to the connecting rectangular tube 1. The rectangular pipe fittings are used to connect the plate head 2 to the plate tail, which greatly reduces the weight, simplifies the processing technology, and reduces the production cost and the use cost. The rectangular pipe fittings are used to connect the plate head 2 to the plate tail, which increases the cross-sectional inertia moment at the plate belly position and enhances the bending resistance of the lifting arm. All parts are connected by welding, and the cavity is completely sealed to prevent rust and corrosion. The plate head 2, the plate tail sleeve 3 and the two small rectangular tubes 7 are welded together, which greatly reduces the weight while ensuring the performance.

[0026] Based on the first embodiment, please refer to Figure 5 The connecting rectangular tube 1 can also be optimized into the connecting circular tube 9 according to the torsional load requirements.

[0027] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A vehicle tailgate lifting arm structure, characterized in that: It includes a connecting rectangular tube and two connecting components. Each of the connecting components includes a plate head, a plate tail sleeve, a rectangular tube fitting, two shaft sleeves and a sealing plate. The two connecting components are symmetrically arranged at the two ends of the connecting rectangular tube. The plate head is welded to one end of the connecting rectangular tube. The two shaft sleeves are respectively welded to the two sides of the plate head. One end of the rectangular tube fitting is welded to the rectangular notch of the plate head. The plate tail sleeve passes through the other end of the rectangular tube fitting and is welded to the other end of the rectangular tube fitting. The sealing plate is welded to the end of the other end of the rectangular tube.

2. The automobile tailgate lifting arm structure according to claim 1, characterized in that: The rectangular tube includes a middle rectangular tube, one end of which is welded to the rectangular notch of the plate head, the sealing plate includes an inner rectangular tube sealing plate, the inner rectangular tube sealing plate is welded to the other end of the middle rectangular tube, and the plate tail sleeve passes through one end of the middle rectangular tube away from the plate head and is welded to the middle rectangular tube.

3. The automobile tailgate lifting arm structure according to claim 1, characterized in that: The rectangular tube includes two small rectangular tubes, one end of the two small rectangular tubes are respectively welded to the rectangular notch of the plate head, the sealing plate includes an external rectangular tube sealing plate, the external rectangular tube sealing plate is welded to the other end of the two small rectangular tubes, and the plate tail sleeve passes through one end of the two small rectangular tubes away from the plate head and is welded to the two small rectangular tubes.

4. The automobile tailgate lifting arm structure according to claim 1, characterized in that: The two shaft sleeves are respectively welded to the two sides of the plate head and are coaxial with the circular hole above the plate head, and one end of the rectangular tube piece close to the plate head is welded to the connecting rectangular tube.

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