Recreational vehicle rear expansion device

Abstract

The embodiment of the utility model provides a recreational vehicle rear expansion device, and relates to the technical field of recreational vehicles. The recreational vehicle rear expansion device comprises a fixing frame, a hanging frame assembly is arranged at the front end of the fixing frame, the hanging frame assembly is slidably assembled on the surface of the fixing frame, the hanging frame assembly comprises a vertical frame, the bottom of the vertical frame is fixedly connected with a transverse frame through bolts, and outer sliding grooves are symmetrically formed in the left end and the right end of the surface of the fixing frame. Spare tire mounting stability is improved through the spare tire carrier, and practicability is improved. Moreover, a two-wheeled vehicle fixing component is further arranged on one side of the spare wheel carrier, the two-wheeled vehicle fixing component can be used for loading two-wheeled vehicles such as a battery car, and the practicability of the hanger assembly is improved; and the storage box and the tool box are mounted on the two sides of the spare wheel carrier, so that the spare wheels in the spare wheel carrier can be prevented from being accidentally damaged by the loaded objects on the storage box and the tool box, the safety performance is ensured, and the classified storage function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, in particular to a rear expansion device for a recreational vehicle. Background Art

[0002] RV is an assembly that integrates accommodation, catering, transportation, entertainment, etc., and concentrates the dual functions of a house and a car. Due to the convenience of using RVs, RVs have developed rapidly in tourism in recent years, especially RV camping has been rapidly established and developed, providing people with the opportunity to walk into and get close to nature, enriching people's lives.

[0003] In order to carry items, especially two-wheeled vehicles, and increase the carrying capacity of the RV, a rear expansion device is used to carry excess items. When the rear expansion device is installed at the rear of the RV, if the assembly force is uneven, the body of the RV may be deformed or damaged due to uneven force. In addition, the rear expansion device is usually in a fixed posture. When heavy objects or two-wheeled vehicles are placed on its surface, it is difficult for the operator to effectively install them on the surface of the rear expansion device due to their gravity. When removing heavy objects, it not only increases the difficulty of disassembly, but also greatly increases the danger during disassembly, making it inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a rear expansion device for a motorhome, which can prevent items from being randomly stacked on the rear expansion device, which may easily cause collision and damage to the spare tire, while also avoiding the problem of difficulty in taking out the loaded items and the spare tire, and avoiding the problem of difficulty in assembling or removing a two-wheeled vehicle.

[0005] The utility model provides a rear expansion device for a motorhome, comprising a fixing frame, a hanging frame assembly being arranged at the front end of the fixing frame, the hanging frame assembly being slidably assembled on the surface of the fixing frame, the hanging frame assembly comprising a vertical frame, and a horizontal frame being fastened with bolts at the bottom of the vertical frame, and outer sliding grooves are symmetrically provided at the left and right ends of the surface of the fixing frame, the two outer sliding grooves have the same aperture, and assembly sliding blocks used in conjunction with the outer sliding grooves are installed at both ends of the vertical frame.

[0006] In a specific embodiment, a guide wheel is arranged on the top of the inner surface of the fixing frame, wherein both ends of the guide wheel are connected to support plates through bearings, and the ends of the support plates are connected to the surface of the fixing frame.

[0007] In a specific embodiment, the outer surface of the fixing frame is connected to a fixing base for fixing the fixing frame, and the fixing base is multiple and symmetrically installed on the surface of the fixing frame.

[0008] In a specific embodiment, the front side of the end of the rack assembly is fastened to a connection base by screws, and the rear side of the end of the vertical frame and located at the rear side of the connection base is connected to a fixing bracket.

[0009] In a specific implementation manner, the left and right ends of the front side of the vertical frame are symmetrically connected with storage racks, and the surfaces of the storage racks are provided with mounting grooves.

[0010] In a specific implementation, a storage box is arranged on the left side of the front end of the vertical frame, and a tool box is arranged on the right side of the front end of the vertical frame. The storage box and the tool box are symmetrically arranged on the surface of the vertical frame.

[0011] In a specific implementation manner, a mounting seat is provided at the center of the vertical frame surface, and a spare tire rack is provided in front of the mounting seat, and the mounting seat is used to assemble the spare tire rack.

[0012] In a specific embodiment, a connecting base plate is disposed on the side of the storage box, and the spare tire rack and the connecting base plate are integrally formed.

[0013] In a specific embodiment, positioning screw holes are provided on the surface of the connection substrate and the surface of the mounting seat.

[0014] In a specific embodiment, a two-wheeled vehicle fixing member for mounting a two-wheeled vehicle is mounted on the front side of the cross frame end portion.

[0015] The beneficial effects of this application are:

[0016] This solution uses the spare tire rack to improve the stability of spare tire installation and improve practicality. In addition, a two-wheeled vehicle fixing component is also provided on one side of the spare tire rack, and the two-wheeled vehicle fixing component can load two-wheeled vehicles such as battery vehicles, thereby improving the practicality of the rack assembly; and because the storage box and the tool box are installed on both sides of the spare tire rack, it can prevent the loads on the storage box and the tool box from accidentally damaging the spare tire in the spare tire rack, thereby ensuring safety performance and achieving the function of classified storage;

[0017] The present invention utilizes the sliding contact between the assembly slider and the outer slide groove so that the hanger assembly is slidably assembled on the surface of the fixed frame, and the position of the entire hanger assembly can be adjusted by a winch. Therefore, when taking the load or spare tire and removing the two-wheeled vehicle, it is only necessary to adjust the position of the vertical frame downward to effectively remove the load or spare tire and remove the two-wheeled vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structure of the rack assembly of an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 4 It is a schematic side view of the overall structure of an embodiment of the utility model;

[0023] Figure 5 It is a schematic top view of the overall structure of an embodiment of the utility model;

[0024] Figure 6 This is a schematic front view of the structure of the rack assembly of an embodiment of the utility model;

[0025] Figure 7 This is a three-dimensional schematic diagram of the spare tire rack structure of an embodiment of the utility model;

[0026] Figure 8 This is a three-dimensional schematic diagram of the storage box structure of an embodiment of the utility model;

[0027] Fig. 9 It is a three-dimensional schematic diagram of the fixing frame structure of an embodiment of the utility model.

[0028] icon:

[0029] 100, fixed frame; 101, outer slide; 110, guide wheel; 120, fixed base;

[0030] 200, rack assembly; 210, vertical frame; 211, assembly slide; 220, horizontal frame; 230, connection base; 231, fixing bracket; 240, storage rack; 250, mounting base;

[0031] 300, storage box; 310, tool box;

[0032] 400, spare tire rack; 401, connecting base plate; 402, positioning screw hole;

[0033] 500. Fixed components of two-wheeled vehicles. DETAILED DESCRIPTION

[0034] When the rear expansion device is assembled at the rear of the RV, if the assembly force is uneven, the vehicle body may be deformed or damaged due to the uneven force, and the rear expansion device is usually in a fixed posture. When placing heavy objects or two-wheeled vehicles on its surface, it is difficult for the operator to effectively assemble them on the surface of the rear expansion device due to its gravity. When removing heavy objects, it not only increases the difficulty of disassembly, but also greatly increases the danger during disassembly, making it inconvenient to use. Therefore, the inventor has provided a rear expansion device for RVs after research. During use, it can avoid the problem of objects being randomly stacked on the rear expansion device, which is easy to collide with the spare tire and cause damage to it, and at the same time avoid the problem of difficulty in taking the load and spare tire, and avoid the problem of difficulty in assembling or removing the two-wheeled vehicle, thereby solving the above-mentioned defects.

[0035] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] Please refer to Figures 1 to 9 The utility model embodiment provides a rear expansion device for a motorhome, including a fixing frame 100, the fixing frame 100 is fixedly mounted on the rear of the motorhome; Fig. 9 As shown, the surface of the fixing frame 100 has outer slide grooves 101 symmetrically opened at the left and right ends, and the two outer slide grooves 101 have the same aperture;

[0037] A guide wheel 110 is provided at the top of the inner surface of the fixing frame 100, wherein both ends of the guide wheel 110 are connected to support plates through bearings, and the ends of the support plates are connected to the surface of the fixing frame 100, so that the guide wheel 110 is supported by the support plates, and the bearings between the guide wheel 110 and the support plates are used for the active and stable connection between the two;

[0038] Specifically, the outer surface of the fixing frame 100 is connected to a fixing base 120 for fixing the fixing frame 100, and the fixing base 120 fixes the fixing frame 100 to the rear of the vehicle body, wherein screw holes are provided on the surface of the fixing base 120 for use with screws to assemble the fixing frame 100, and the fixing base 120 is multiple and symmetrically installed on the surface of the fixing frame 100;

[0039] A hanger assembly 200 is provided at the front end of the fixing frame 100. The hanger assembly 200 is slidably mounted on the surface of the fixing frame 100 for placing items. The hanger assembly 200 includes a vertical frame 210, and the vertical frame 210 is in sliding contact with the fixing frame 100, and the bottom of the vertical frame 210 is fastened with a horizontal frame 220 by bolts.

[0040] The vertical frame 210 and the horizontal frame 220 are in an L-shape, and a slot connected to the awning is installed at the end of the vertical frame 210, so that the awning can be mounted on its surface, which is convenient for users to camp outdoors. Under the cooperation of the vertical frame 210 and the horizontal frame 220, the strength of the rear of the RV itself can be increased.

[0041] Both ends of the vertical frame 210 are equipped with assembly sliders 211 used in conjunction with the outer slide groove 101. The surface of the assembly slider 211 extends to the inner cavity of the outer slide groove 101. The vertical frame 210 is slidably assembled on the surface of the fixed frame 100 by utilizing the sliding connection between the assembly slider 211 and the outer slide groove 101. The assembly slider 211 is a wear-resistant slider. When it cooperates with the outer slide groove 101 on the fixed frame 100, the friction between the two components is reduced, the jamming phenomenon between the two accessories is avoided, and the service life of the product is increased.

[0042] Specifically, the front side of the end of the hanger assembly 200 is fastened with a connection base 230 by screws for assembling the winch, and the rear side of the end of the vertical frame 210 and located at the rear side of the connection base 230 is connected with a fixing bracket 231 for fixing one end of the pull rope;

[0043] Specifically, the surface of the guide wheel 110 is in sliding contact with a pull rope, and the pull rope is preferably a steel wire rope, and the corresponding steel wire rope is selected according to the specific tension requirements of the specifications;

[0044] Specifically, a winch is installed on the surface of the connection base 230. The winch is an electric winch, and one end of the pull rope passes through the guide wheel 110 and is wound around the output end of the winch. The other end of the pull rope is connected to the fixed bracket 231. Figure 2 It can be seen that the surface of the fixed bracket 231 is provided with an assembly hole, and the pull rope passes through the assembly hole and is fastened to the fixed bracket 231, so that the pull rope on the guide wheel 110 is wound by the winch, and under the restraint of the guide wheel 110, the guide wheel 110 slides upward on the fixed base 120 under the tension of the pull rope, and when it moves downward, the winch is driven in the opposite direction;

[0045] Specifically, the left and right ends of the front side of the vertical frame 210 are symmetrically connected with the storage racks 240, and the surface of the storage racks 240 is provided with installation grooves for assembling the storage box 300 and the tool box 310, wherein the installation grooves are multiple and evenly and symmetrically opened on the surface of the storage racks 240, thereby reducing the weight and cost of the storage racks 240, and the storage box 300 and the tool box 310 can be assembled in the installation grooves of different heights on the storage racks 240 according to needs, so as to adjust the installation positions of the storage box 300 and the tool box 310;

[0046] Furthermore, a storage box 300 is provided on the left side of the front end of the vertical frame 210, and a tool box 310 is provided on the right side of the front end of the vertical frame 210. The storage box 300 and the tool box 310 are symmetrically arranged on the surface of the vertical frame 210, and both are used to store items. The surfaces of the storage box 300 and the tool box 310 are connected with a clamping piece used in conjunction with the installation groove. The storage box 300 and the tool box 310 can be installed by installing the clamping piece into the corresponding installation groove.

[0047] And as Figure 8 As shown, the inner cavity of the storage box 300 is divided into several spaces, and different items can be classified and stored respectively;

[0048] A mounting seat 250 is provided at the center of the surface of the vertical frame 210, and a spare tire rack 400 is provided in front of the mounting seat 250. The mounting seat 250 is used to assemble the spare tire rack 400, and the spare tire is installed in the spare tire rack 400. The spare tire of the RV can be suspended and installed on the vertical frame 210 by using the spare tire rack 400, so as to avoid the problem that the RV cannot move due to damage to the tire when going out;

[0049] Please refer to Figures 1 to 7 , a connecting base plate 401 is disposed on the side of the storage box 300, and the spare tire holder 400 and the connecting base plate 401 are integrally formed;

[0050] As a further description of the spare tire rack 400, the surface of the connecting substrate 401 and the surface of the mounting seat 250 are both provided with positioning screw holes 402. When the spare tire rack 400 and the connecting substrate 401 are attached to the mounting seat 250, positioning screws are screwed into the positioning screw holes 402 to fix and assemble the spare tire rack 400.

[0051] A two-wheeled vehicle fixing component 500 for installing a two-wheeled vehicle is installed on the front side of the end of the cross frame 220. The two-wheeled vehicle fixing component 500 is used to install the two-wheeled vehicle, so that the two-wheeled vehicle is installed on the hanging frame assembly 200, and it is installed on the rear of the RV using the fixing frame 100, which is convenient for carrying it. The hanging frame assembly 200 and the fixing frame 100 are slidably assembled, so that the position of the cross frame 220 is adjusted using a winch, and the two-wheeled vehicle fixing component 500 can be placed on a flat ground, which facilitates the installation of the two-wheeled vehicle in the two-wheeled vehicle fixing component 500. Similarly, when removing the two-wheeled vehicle, it is only necessary to lower the two-wheeled vehicle fixing component 500 to the flat ground.

[0052] In summary, the working principle of a rear expansion device for a motorhome in an embodiment of the utility model is as follows: the mounting slide block 211 and the outer slide groove 101 are in sliding contact, so that the rack assembly 200 is slidably assembled on the surface of the fixing frame 100, and the position of the rack assembly 200 as a whole can be adjusted by a winch, so that when taking out the load or spare tire and removing the two-wheeled vehicle, it is only necessary to adjust the position of the vertical frame 210 downward, so that the load or spare tire and the two-wheeled vehicle can be effectively removed;

[0053] The spare tire rack 400 is used to improve the stability of the spare tire installation and improve the practicality. In addition, a two-wheeled vehicle fixing member 500 is also provided on one side of the spare tire rack 400, and the two-wheeled vehicle fixing member 500 can load two-wheeled vehicles such as battery vehicles, thereby improving the practicality of the rack assembly 200; and because the storage box 300 and the tool box 310 are installed on both sides of the spare tire rack 400, it is possible to prevent the loads on the storage box 300 and the tool box 310 from accidentally damaging the spare tire in the spare tire rack 400, thereby ensuring safety performance and achieving the function of classified storage.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rear expansion device for a motorhome, characterized in that: The invention comprises a fixing frame (100), a hanging frame assembly (200) is arranged at the front end of the fixing frame (100), the hanging frame assembly (200) is slidably assembled on the surface of the fixing frame (100), the hanging frame assembly (200) comprises a vertical frame (210), and the bottom of the vertical frame (210) is fastened with a horizontal frame (220) by bolts, and the surface of the fixing frame (100) is symmetrically provided with external sliding grooves (101) at the left and right ends, and the two external sliding grooves (101) have the same aperture, and the two ends of the vertical frame (210) are equipped with assembly sliders (211) used in conjunction with the external sliding grooves (101).

2. The rear expansion device for a motorhome according to claim 1, characterized in that: A guide wheel (110) is provided at the top of the inner surface of the fixing frame (100), wherein both ends of the guide wheel (110) are connected to support plates via bearings, and the ends of the support plates are connected to the surface of the fixing frame (100).

3. The RV rear expansion device according to claim 2, characterized in that: The outer surface of the fixing frame (100) is connected to a fixing base (120) for fixing the fixing frame (100), and the fixing bases (120) are multiple and symmetrically installed on the surface of the fixing frame (100).

4. The RV rear expansion device according to claim 3, characterized in that: The front side of the end of the hanger assembly (200) is fastened with a connection base (230) by means of screws, and the rear side of the end of the vertical frame (210) and located at the rear side of the connection base (230) is connected with a fixing bracket (231).

5. The rear expansion device for a motorhome according to claim 4, characterized in that: The left and right ends of the front side of the vertical frame (210) are symmetrically connected to the storage racks (240), and the surface of the storage racks (240) is provided with installation grooves.

6. The rear expansion device for a motorhome according to claim 5, characterized in that: A storage box (300) is arranged on the left side of the front end of the vertical frame (210), and a tool box (310) is arranged on the right side of the front end of the vertical frame (210). The storage box (300) and the tool box (310) are symmetrically arranged on the surface of the vertical frame (210).

7. The rear expansion device of a motorhome according to claim 6, characterized in that: A mounting seat (250) is arranged at the center of the surface of the vertical frame (210), and a spare tire frame (400) is arranged in front of the mounting seat (250). The mounting seat (250) is used to assemble the spare tire frame (400).

8. The rear expansion device for a motorhome according to claim 7, characterized in that: A connecting base plate (401) is provided on the side of the storage box (300), and the spare tire rack (400) and the connecting base plate (401) are integrally formed.

9. The rear expansion device for a motorhome according to claim 8, characterized in that: Positioning screw holes (402) are provided on the surface of the connecting substrate (401) and the surface of the mounting seat (250).

10. The rear expansion device of a motorhome according to claim 9, characterized in that: A two-wheeled vehicle fixing member (500) for mounting a two-wheeled vehicle is mounted on the front side of the end of the cross frame (220).

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