Hydraulic jacking tailstock for motor home

Abstract

The utility model provides a hydraulic jacking tailstock for a motor home. The hydraulic jacking tailstock comprises a base; one end of the connecting rod assembly is rotationally arranged on one side of the base; the bearing frame used for bearing articles is hinged to the other end of the connecting rod assembly; one end of the driving part is hinged to the base, the other end of the driving part is hinged to the connecting rod assembly, and the driving part drives the connecting rod assembly to rotate around the base and drives the bearing frame to move up and down; guide grooves are formed in the two sides of the bearing frame, and one end of each connecting rod assembly is rotationally arranged at the bottom of the corresponding guide groove, so that the connecting rod assemblies are arranged in the guide grooves in a sliding mode; the connecting rod assembly of the parallelogram structure is matched with the driving part, hydraulic lifting of the tailstock is achieved, meanwhile, the guide groove formed in the bearing frame is matched, stability of the bearing frame in the lifting process is achieved, and the technical problem that in the prior art, the tailstock is prone to shaking during lifting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of a motorhome tail rack, in particular to a hydraulic lifting tail rack for a motorhome. Background Art

[0002] Chinese patent CN202220473679.6 discloses a lifting platform, including a bracket and a linkage mechanism connected to the bracket, wherein the linkage mechanism drives the bracket to move in the vertical direction and in the horizontal direction at the same time. And a motorhome with a lifting platform. The utility model forms a polygonal linkage mechanism through an upper connecting rod, a lower connecting rod, a vertical section of the bracket and a connecting rod support to realize the vertical and horizontal movement of the lifting platform at the same time, thereby ensuring the horizontal consistency and stability of the lifting. The motorhome with a lifting platform can smoothly carry all kinds of items. At the same time, when the lifting platform is lowered to a low place (the ground), it is away from the motorhome connected thereto, so that there is a larger operating space for loading and unloading items on the platform, which is convenient for loading and unloading items.

[0003] However, when the tail frame of this technical solution is heavily loaded, it is prone to shaking during the lifting process, which poses certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic lifting tail frame for a motorhome in view of the deficiencies in the prior art. The hydraulic lifting of the tail frame is realized by cooperating with the setting of a driving part through a connecting rod assembly with a parallelogram structure. At the same time, the lifting process of the bearing frame is stabilized by cooperating with the guide grooves provided on the bearing frame, thereby solving the technical problem in the prior art that the tail frame is easy to shake during lifting.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydraulic lifting tail frame for a recreational vehicle, comprising:

[0007] Base;

[0008] A connecting rod assembly, one end of which is rotatably disposed on one side of the base;

[0009] A carrier frame, the carrier frame for carrying articles is hinged to the other end of the connecting rod assembly;

[0010] A driving part, one end of which is hinged to the base, and the other end of which is hinged to the connecting rod assembly, and the driving part drives the connecting rod assembly to rotate around the base, thereby driving the supporting frame to move up and down;

[0011] It is characterized in that guide grooves are provided on both sides of the carrier frame, and one end of the connecting rod assembly is rotatably arranged at the bottom of the guide groove, so that the connecting rod assembly is slidably arranged in the guide groove.

[0012] As an improvement, the guide groove is arranged in a U-shaped structure.

[0013] As an improvement, the connecting rod assembly includes: an upper connecting rod and a lower connecting rod, and a parallelogram structure is formed between the hinge points where the upper connecting rod, the lower connecting rod, the guide groove and the base are connected.

[0014] As an improvement, two ends of the driving part are hinged to hinge points at opposite corners of the parallelogram.

[0015] As an improvement, the output end of the driving part is hinged to the outer hinge shaft of the upper connecting rod, and the other end of the driving part is hinged to the inner hinge shaft of the lower connecting rod.

[0016] As an improvement, a first positioning hole is further provided on the guide groove, and a second positioning hole is provided on the upper connecting rod of the connecting rod assembly. When the first positioning hole coincides with the second positioning hole, a positioning pin is inserted to fix the relative position of the support frame and the connecting rod assembly.

[0017] As an improvement, a tire fixing frame for fixing the spare tire is provided in the middle of the carrier.

[0018] As an improvement, a platform for placing a storage box is also provided on the side of the guide groove.

[0019] As an improvement, an auxiliary bracket for fixing the two-wheeled vehicle is provided on the outer side of the carrier.

[0020] The beneficial effects of the utility model are:

[0021] The utility model realizes hydraulic lifting of the tail frame by cooperating with the setting of the driving part through the connecting rod assembly of the parallelogram structure, and at the same time, realizes the stability of the lifting process of the bearing frame by cooperating with the guide groove provided on the bearing frame. The utility model realizes the stable connection of the relative position of the connecting rod assembly and the bearing frame by providing a first positioning hole on the guide groove and the second positioning hole provided on the upper connecting rod and the positioning pin, thereby preventing the bearing frame from shaking during the driving process of the RV. The utility model realizes that it can carry not only spare tires, but also storage boxes, two-wheeled vehicles, etc. through the expansion of the bearing frame, and has wider versatility. In summary, the utility model has the advantages of stable lifting of the bearing frame and rich functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the load-bearing frame of the utility model in a descending state;

[0023] Figure 2 This is a schematic diagram of the utility model's load-bearing frame in an elevated state;

[0024] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the load-bearing frame of the utility model;

[0026] Figure 5 This is a schematic diagram of the utility model in use. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] Embodiment 1

[0030] like Figure 1-5 As shown, this embodiment provides a hydraulic lifting tail frame for a motorhome, comprising:

[0031] A base 1, wherein the base 1 is a motorhome frame;

[0032] A connecting rod assembly 2, one end of which is rotatably disposed on one side of the base 1;

[0033] A carrier 3 for carrying articles, the carrier 3 being hinged to the other end of the connecting rod assembly 2;

[0034] A driving part 4, one end of which is hinged to the base 1, and the other end of which is hinged to the connecting rod assembly 2. The driving part 4 drives the connecting rod assembly 2 to rotate around the base 1, thereby driving the supporting frame 3 to move up and down. The driving part 4 is preferably hydraulically driven. Furthermore, guide grooves 31 are provided on both sides of the supporting frame 3, and one end of the connecting rod assembly 2 is rotatably disposed at the bottom of the guide groove 31, so that the connecting rod assembly 2 slides in the guide groove 31.

[0035] It should be noted that, by providing the guide groove 31, the connecting rod assembly 2 is allowed to slide in the guide groove 31, thereby improving the stability of the lifting and lowering process of the carrier frame 3. When the carrier frame 3 descends to the lowest position, the lower connecting rod 22 is located in the guide groove 31; when the carrier frame 3 rises to the highest position, the upper connecting rod 21 is located in the guide groove 31, and the connecting rod assembly 2 is always kept in the guide groove 31, thereby achieving stability in the lifting and lowering process of the carrier frame 3.

[0036] As an improvement, the guide groove 31 is arranged in a U-shaped structure to facilitate the sliding of the connecting rod assembly 2 in the guide groove 31 .

[0037] As an improvement, the connecting rod assembly 2 includes: an upper connecting rod 21 and a lower connecting rod 22 , and a parallelogram structure is formed between the upper connecting rod 21 , the lower connecting rod 22 , the guide groove 31 and the hinge point where the base 1 is connected.

[0038] As an improvement, two ends of the driving part 4 are hinged to hinge points at opposite corners of the parallelogram.

[0039] As an improvement, the output end of the driving part 4 is hinged to the outer hinge shaft 211 of the upper connecting rod 21, and the other end of the driving part 4 is hinged to the inner hinge shaft 221 of the lower connecting rod 22 to realize the lifting and lowering of the supporting frame 3.

[0040] Furthermore, a first positioning hole 311 is provided on the side of the guide groove 31, and a second positioning hole 212 is provided on the upper connecting rod 21 of the connecting rod assembly 2. When the first positioning hole 311 coincides with the second positioning hole 212, the positioning pin 213 is inserted to fix the relative position of the supporting frame 3 and the connecting rod assembly 2, thereby improving the stability of the supporting frame 3.

[0041] Preferably, a tire fixing frame 32 for fixing the spare tire is provided in the middle of the carrier frame 3, a platform 33 for placing a storage box is also provided on the side of the guide groove 31, and an auxiliary bracket 34 for fixing two-wheeled vehicles, such as bicycles, motorcycles, etc., is provided on the outer side of the carrier frame 3. Users can select relevant auxiliary brackets according to actual needs to improve the comfort and convenience of the RV.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic lifting tail frame for a motorhome, comprising: Base; A connecting rod assembly, one end of which is rotatably disposed on one side of the base; A carrier frame, the carrier frame for carrying articles is hinged to the other end of the connecting rod assembly; A driving part, one end of which is hinged to the base, and the other end of which is hinged to the connecting rod assembly, and the driving part drives the connecting rod assembly to rotate around the base, thereby driving the supporting frame to move up and down; It is characterized in that guide grooves are provided on both sides of the carrier frame, and one end of the connecting rod assembly is rotatably arranged at the bottom of the guide groove, so that the connecting rod assembly is slidably arranged in the guide groove.

2. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: The guide groove is arranged in a U-shaped structure.

3. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: The connecting rod assembly comprises an upper connecting rod and a lower connecting rod, and a parallelogram structure is formed between the hinge points where the upper connecting rod, the lower connecting rod, the guide groove and the base are connected.

4. The hydraulic lifting tail frame for a motorhome according to claim 3 is characterized in that: The two ends of the driving part are hinged to the hinge points of the diagonal corners of the parallelogram.

5. The hydraulic lifting tail frame for a motorhome according to claim 4, characterized in that: The output end of the driving part is hinged to the outer hinge shaft of the upper connecting rod, and the other end of the driving part is hinged to the inner hinge shaft of the lower connecting rod.

6. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: The guide groove is also provided with a first positioning hole, and the upper connecting rod of the connecting rod assembly is provided with a second positioning hole. When the first positioning hole and the second positioning hole coincide with each other, a positioning pin is inserted to fix the relative position of the supporting frame and the connecting rod assembly.

7. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: A tire fixing frame for fixing a spare tire is provided in the middle of the carrier frame.

8. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: The side of the guide groove is also provided with a platform for placing a storage box.

9. The hydraulic lifting tail frame for a motorhome according to claim 1, characterized in that: An auxiliary bracket for fixing a two-wheeled vehicle is arranged on the outer side of the carrier.

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