Hydraulic turnover rear trunk and recreational vehicle having the same

Abstract

The utility model relates to the field of house car equipment, especially a hydraulic turnover type rear trunk and the house car with it, the utility model discloses a hydraulic turnover type rear trunk includes box, support frame, hydraulic turnover type drive mechanism and fixed frame, the support frame sets up in one side of fixed frame, the box is erected and is installed on the support frame, the hydraulic turnover type drive mechanism is installed on the fixed frame, and is connected with support frame, the hydraulic turnover type drive mechanism is used for driving the support frame and the box on it move between the upper portion and lower portion of one side of fixed frame, and make the box keep erecting in the moving process. Advantage: reasonable in design can make the box present circular arc shape's moving track rise or drop, guarantee the box angle invariable in the moving process, keep the state of erecting, realize the turnover type lifting of box.

Description

Technical Field

[0001] This utility model relates to the field of RV equipment, and in particular to a hydraulically tilting rear tail box and an RV having the same. Background Technology

[0002] A motorhome, also known as a "home on wheels," combines the functions of a "house" and a "vehicle," but its primary attribute is still that of a vehicle. It is a type of vehicle that is mobile and equipped with the essential facilities for living.

[0003] There are many types of motorhomes available, with a wide variety of functions. For example, some motorhomes use a hydraulic lift to install a tail box at the rear, where items can be placed and tools such as bicycles or motorcycles can be hung. However, the installation space for hydraulic lifts is relatively compact, and disassembly is difficult during maintenance due to the tight assembly.

[0004] Therefore, it is necessary to develop a hydraulically tilting rear cargo box and a motorhome equipped with it to solve the aforementioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a hydraulically tilting rear tail box and a motorhome having it, which effectively overcomes the defects of the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A hydraulically tilting rear tail box includes a box body, a support frame, a hydraulic tilting drive mechanism, and a fixed frame. The support frame is disposed on one side of the fixed frame, the box body is vertically mounted on the support frame, and the hydraulic tilting drive mechanism is mounted on the fixed frame and connected to the support frame. The hydraulic tilting drive mechanism is used to drive the support frame and the box body on it to move between the upper and lower parts of one side of the fixed frame, and to keep the box body upright during the movement.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the aforementioned hydraulic tilting drive mechanism includes a linkage assembly and a hydraulic telescopic drive device. The linkage assembly includes two first connecting arms and two second connecting arms. The two first connecting arms are parallel to each other at both ends of one side of the fixed frame. One end of each of the two first connecting arms is hinged to both ends of the fixed frame, and the other end is hinged to both ends of the support frame. Similarly, the two second connecting arms are parallel to each other at both ends of one side of the fixed frame. One end of each of the two second connecting arms is hinged to both ends of the fixed frame, and the other end is hinged to both ends of the support frame. The two second connecting arms are connected to the fixed frame... The hinge point is located above the hinge point of the two first connecting arms and the fixed frame. The hinge points at both ends of the first and second connecting arms on the same side of the fixed frame are distributed at the four vertices of the same parallelogram. The two first connecting arms are connected and fixed by the fixed arm. The hydraulic telescopic drive device is mounted on the fixed frame and connected to the second connecting arm. The hydraulic telescopic drive device is used to extend or retract to drive the second connecting arm and the first connecting arm to flip up or down simultaneously. The fixed frame is provided with a locking component for locking the second connecting arm after it flips up.

[0010] Furthermore, the aforementioned fixing frame includes two sets of side plates and a connecting beam. The connecting beam is horizontally arranged, and the two sets of side plates are vertically fixed to the upper parts of both ends of the connecting beam. The connecting rod assembly is connected to the side plates, one end of the two first connecting arms is hinged to the two sets of side plates, and one end of the two second connecting arms is hinged to the two sets of side plates.

[0011] Furthermore, the aforementioned side plate includes a first plate and a second plate that are parallel to each other. The lower ends of the first plate and the second plate are respectively vertically connected and fixed to the aforementioned connecting beam. One end of the first connecting arm and the second connecting arm respectively extends into the space between the corresponding first plate and the second plate, and is hinged to the first plate and the second plate through a pivot.

[0012] Furthermore, the aforementioned hydraulic telescopic drive device includes two sets of hydraulic cylinders, the cylinder ends of the two sets of hydraulic cylinders are respectively hinged to the two sets of side plates, and the ends of the telescopic rods of the two sets of hydraulic cylinders are respectively hinged to the portions of the two second connecting arms near the other end.

[0013] Furthermore, the locking assembly includes two sets of locking pins, and limiting hooks are respectively provided on the outer side of one end of the two second connecting arms. The first plate and the second plate of the two sets of side plates are respectively provided with insertion holes that penetrate vertically through them. The two sets of locking pins pass through the insertion holes of the two sets of side plates respectively, and can move up and down along the insertion holes under the action of external force. When the box moves to the upper side of the fixing frame, the limiting hooks move accordingly between the first plate and the second plate. In this state, the locking pins can move downward and embed into the limiting hooks.

[0014] Furthermore, the aforementioned support frame includes a horizontal first support and a vertical second support. The second support is fixed to the upper part of one side of the first support. The other end of the first connecting arm is hinged to the first support. The second connecting arm is hinged to the lower part of the second support. The housing is mounted on the first support.

[0015] Furthermore, the box body has a hollow area in the middle that runs through both sides and extends downward to the first support, and the second support is embedded in the hollow area.

[0016] Furthermore, a spare tire is also provided in the hollowed-out area and mounted on the side of the second bracket, and an extension bracket is provided on the side of the support frame away from the fixed frame.

[0017] The beneficial effects of this utility model are: it is reasonably designed so that the box can move up or down in an arc-shaped trajectory, while keeping the angle of the box unchanged during the movement and maintaining an upright state, thus realizing the flip-type lifting and lowering of the box.

[0018] A motorhome is also provided, including a hydraulically tilting rear cargo box, which is mounted to the rear of the motorhome via a mounting bracket. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the hydraulic tipping rear tail box of this utility model;

[0020] Figure 2 This is a partial enlarged view of the hydraulic tipping rear tail box of this utility model;

[0021] Figure 3 This is a partial enlarged view of the hydraulic tipping tail box of this utility model after removing a portion of one side panel.

[0022] Figure 4 This is a partial enlarged view from another perspective of the hydraulic tipping rear cargo box of this utility model;

[0023] Figure 5 This is a side view of the hydraulically tilting rear tail box of this utility model;

[0024] Figure 6 This is a schematic diagram of the hydraulic tipping rear tail box of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Housing; 2. Support frame; 3. Linkage assembly; 4. Hydraulic telescopic drive device; 5. Fixing frame; 6. Locking assembly; 7. Spare tire; 21. First bracket; 22. Second bracket; 23. Extension bracket; 31. First connecting arm; 32. Second connecting arm; 33. Fixing arm; 51. Side plate; 52. Connecting beam; 61. Locking pin; 321. Limiting hook; 511. First plate; 512. Second plate; 513. Insertion hole. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] Example

[0029] like Figure 1 , 2 As shown in 3, 4, 5, and 6, the hydraulic tipping rear tail box of this embodiment includes a box body 1, a support frame 2, a hydraulic tipping drive mechanism, and a fixed frame 5. The support frame 2 is disposed on one side of the fixed frame 5. The box body 1 is vertically mounted on the support frame 2. The hydraulic tipping drive mechanism is mounted on the fixed frame 5 and connected to the support frame 2. The hydraulic tipping drive mechanism is used to drive the support frame 2 and the box body 1 on it to move between the upper and lower parts of one side of the fixed frame 5, and to keep the box body 1 upright during the movement.

[0030] In this embodiment, the hydraulically tilting rear cargo box is installed by mounting it to the corresponding position on other carriers via the fixing bracket 5 (taking a motorhome as an example, mounting it to the rear of the motorhome via the fixing bracket 5). The entire rear cargo box is modularly designed for easy disassembly. During use, the hydraulic tilting drive mechanism drives the support frame 2 to tilt and move, but during the movement, the angle of the support frame 2 remains unchanged (that is, the angle of the box 1 remains unchanged), and the box 1 remains upright as it moves to above or below one side of the fixing bracket 5. This ensures that the items inside the box 1 will not tip over, maintaining stability. Simultaneously, the entire tilting movement process does not cause the box 1 to rise excessively.

[0031] In a preferred embodiment, the hydraulic tilting drive mechanism includes a linkage assembly 3 and a hydraulic telescopic drive device 4. The linkage assembly 3 includes two first connecting arms 31 and two second connecting arms 32. The two first connecting arms 31 are parallel to each other at both ends of one side of the fixed frame 5. One end of each of the two first connecting arms 31 is hinged to both ends of the fixed frame 5, and the other end is hinged to both ends of the support frame 2. The two second connecting arms 32 are parallel to each other at both ends of one side of the fixed frame 5. One end of each of the two second connecting arms 32 is hinged to both ends of the fixed frame 5, and the other end is hinged to both ends of the support frame 2. The two second connecting arms 32 are connected to the fixed frame 5 and the support frame 2 respectively. The hinge point of the fixed frame 5 is located above the hinge point of the two first connecting arms 31 and the fixed frame 5. The hinge points of the two ends of the first connecting arms 31 and the second connecting arms 32 located on the same side of the fixed frame 5 are distributed at the four vertices of the same parallelogram. The two first connecting arms 31 are connected and fixed by the fixed arm 33. The hydraulic telescopic drive device 4 is mounted on the fixed frame 5 and connected to the second connecting arm 32. The hydraulic telescopic drive device 4 is used to extend or shorten so as to drive the second connecting arm 32 and the first connecting arm 31 to flip up or down at the same time. The fixed frame 5 is provided with a locking component 6 for locking the second connecting arm 32 after it flips up.

[0032] In the above embodiment, the connection between the first connecting arm 31 and the second connecting arm 32 on the same side, the support frame 2, and the fixed frame 5 forms a parallelogram structure. Therefore, when the hydraulic telescopic drive device 4 drives the second connecting arm 32 to rotate around the fixed frame 5, since the position angle of the fixed frame 5 remains unchanged, the angle of the support frame 2 will not change according to the principle of the parallelogram. This ensures that the box 1 on the support frame 2 remains upright and will not tilt or tip over. The two sets of first connecting arms 31 and second connecting arms 32 on both sides rotate synchronously while connected by the fixed arm 33, so that the support frame 2 moves smoothly as the first connecting arm 31 and the second connecting arm 32 rotate, without changing its angle. The structural design is relatively reasonable and ingenious.

[0033] In a preferred embodiment, the aforementioned fixing frame 5 includes two sets of side plates 51 and a connecting beam 52. The connecting beam 52 is horizontally arranged, and the two sets of side plates 51 are vertically fixed to the upper parts of both ends of the connecting beam 52. The connecting rod assembly 3 is connected to the side plates 51, and one end of the two first connecting arms 31 is hinged to the two sets of side plates 51 respectively. One end of the two second connecting arms 32 is hinged to the two sets of side plates 51 respectively.

[0034] In the above implementation scheme, the fixed frame 5 has a simple structural design, which facilitates the assembly of the first connecting arm 31 and the second connecting arm 32 on both sides.

[0035] In this embodiment, the side plate 51 includes a first plate 511 and a second plate 512 that are parallel to each other. The lower ends of the first plate 511 and the second plate 512 are respectively vertically connected and fixed to the connecting beam 52. One end of the first connecting arm 31 and the second connecting arm 32 extends into the corresponding space between the first plate 511 and the second plate 512, and is hinged to the first plate 511 and the second plate 512 via a pivot. The side plate 51 has a simple structural design, and its fit with one end of the first connecting arm 31 and the second connecting arm 32 is relatively compact, resulting in a relatively stable installation.

[0036] In this embodiment, the hydraulic telescopic drive device 4 includes two sets of hydraulic cylinders. The cylinder ends of the two sets of hydraulic cylinders are respectively hinged to the two sets of side plates 51, and the ends of the telescopic rods of the two sets of hydraulic cylinders are respectively hinged to the portions of the two second connecting arms 32 near the other end. An ear plate is provided on the side of the second connecting arm 32 near the first connecting arm 31, which is hinged to the end of the telescopic rod.

[0037] In a preferred embodiment, the locking assembly 6 includes two sets of locking pins 61, and two limiting hooks 321 are respectively provided on the outer side of one end of the two second connecting arms 32. The first plate 511 and the second plate 512 of the two sets of side plates 51 are respectively provided with insertion holes 513 that penetrate vertically through them. The two sets of locking pins 61 pass through the insertion holes 513 on the two sets of side plates 51 and can move up and down along the insertion holes 513 under the action of external force. When the housing 1 moves to the upper side of the fixing frame 5, the limiting hooks 321 move accordingly between the first plate 511 and the second plate 512. In this state, the locking pins 61 can move downward and embed into the limiting hooks 321.

[0038] In the above implementation scheme, when the second connecting arm 32 is driven by the hydraulic telescopic drive device 4 to flip upward to almost vertical (maximum flip displacement), the hook area on the inner side of the limiting hook 321 is exactly aligned with the insertion hole 513. Then, by locking the pin 61, it can move downward and embed into the limiting hook 321. This suppresses the possibility of the second connecting arm 32 flipping downward, so that the box 1 is kept in a high position and will not fall.

[0039] In this embodiment, the limiting hook 321 can be manually driven to move up and down in the insertion hole 513, or a hydraulic cylinder for driving its up and down movement can be installed on the side plate 51. The insertion hole 513 is a vertically arranged strip-shaped hole that allows the locking pin 61 to move up and down within it.

[0040] In this embodiment, the support frame 2 includes a horizontal first support 21 and a vertical second support 22. The second support 22 is fixed to the upper part of one side of the first support 21. The other end of the first connecting arm 31 is hinged to the first support 21 (via a rotating pin passing through both). The second connecting arm 32 is hinged to the lower part of the second support 22 (via a rotating pin passing through both). The housing 1 is mounted on the first support 21. The first support 21 and the second support 22 together form an L-shaped support, which facilitates the connection of the other ends of the second connecting arm 32 and the first connecting arm 31 to the support frame 2 at different heights. At the same time, it also facilitates the stable assembly of the housing 1 on it.

[0041] In this embodiment, the box 1 has a hollow area in the middle that runs through both sides and extends downward to the first support 21, and the second support 22 is embedded in the hollow area.

[0042] In this embodiment, a spare tire 7 is also provided in the hollowed-out area and mounted on the side of the second bracket 22. An extension bracket 23 is provided on the side of the support frame 2 away from the fixing frame 5. The spare tire 7 has reserved installation space, and the extension bracket 23 is designed to facilitate the placement and fixing of bicycles, motorcycles, and other tools.

[0043] Example 2

[0044] The RV in this embodiment includes the hydraulically tilting rear cargo box as in Embodiment 1, which is mounted to the rear of the RV via a mounting bracket 5. More specifically, a connecting beam 52 is fixed to the rear of the RV chassis, and side panels 51 are fitted and fixed to both sides of the rear of the RV. Of course, a mounting bracket can also be added, and then the mounting bracket 5 can be installed on the mounting bracket, as long as the mounting bracket 5 is securely assembled.

[0045] In this embodiment, the two side plates 51 of the fixing frame 5 can be connected and assembled to the two rear sides of the RV by bolts, which is very convenient.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hydraulically tilting rear tail box, characterized in that: The device includes a housing (1), a support frame (2), a hydraulic tilting drive mechanism, and a fixed frame (5). The support frame (2) is disposed on one side of the fixed frame (5). The housing (1) is erected on the support frame (2). The hydraulic tilting drive mechanism is mounted on the fixed frame (5) and connected to the support frame (2). The hydraulic tilting drive mechanism is used to drive the support frame (2) and the housing (1) on it to move between the upper and lower parts of one side of the fixed frame (5), and to keep the housing (1) upright during the movement.

2. The hydraulic tipping rear cargo box according to claim 1, characterized in that: The hydraulic tilting drive mechanism includes a linkage assembly (3) and a hydraulic telescopic drive device (4). The linkage assembly (3) includes two first connecting arms (31) and two second connecting arms (32). The two first connecting arms (31) are distributed parallel to each other at both ends of one side of the fixed frame (5). One end of each of the two first connecting arms (31) is hinged to both ends of the fixed frame (5), and the other end is hinged to both ends of the support frame (2). The two second connecting arms (32) are distributed parallel to each other at both ends of one side of the fixed frame (5). One end of each of the two second connecting arms (32) is hinged to both ends of the fixed frame (5), and the other end is hinged to both ends of the support frame (2). The hinges of the two second connecting arms (32) to the fixed frame (5) are... The contact point is located above the hinge point of the two first connecting arms (31) and the fixed frame (5). The hinge points at both ends of the first connecting arm (31) and the second connecting arm (32) on the same side of the fixed frame (5) are distributed at the four vertices of the same parallelogram. The two first connecting arms (31) are connected and fixed by the fixed arm (33). The hydraulic telescopic drive device (4) is mounted on the fixed frame (5) and connected to the second connecting arm (32). The hydraulic telescopic drive device (4) is used to extend or shorten so as to drive the second connecting arm (32) and the first connecting arm (31) to flip up or down at the same time. The fixed frame (5) is provided with a locking component (6) for locking the second connecting arm (32) after it flips up.

3. A hydraulically tilting rear tail box according to claim 2, characterized in that: The fixing frame (5) includes two sets of side plates (51) and a connecting beam (52). The connecting beam (52) is horizontally arranged, and the two sets of side plates (51) are vertically fixed to the upper part of both ends of the connecting beam (52). The connecting rod assembly (3) is connected to the side plates (51). One end of the two first connecting arms (31) is hinged to the two sets of side plates (51) respectively, and one end of the two second connecting arms (32) is hinged to the two sets of side plates (51) respectively.

4. A hydraulically tilting rear tail box according to claim 3, characterized in that: The side plate (51) includes a first plate (511) and a second plate (512) that are parallel to each other. The lower ends of the first plate (511) and the second plate (512) are respectively vertically connected and fixed to the connecting beam (52). One end of the first connecting arm (31) and the second connecting arm (32) extends into the corresponding first plate (511) and the second plate (512) respectively, and is hinged to the first plate (511) and the second plate (512) through a pivot.

5. A hydraulically tilting rear tail box according to claim 3, characterized in that: The hydraulic telescopic drive device (4) includes two sets of hydraulic cylinders. The cylinder ends of the two sets of hydraulic cylinders are respectively hinged to the two sets of side plates (51), and the ends of the telescopic rods of the two sets of hydraulic cylinders are respectively hinged to the parts of the two second connecting arms (32) near the other end.

6. A hydraulically tilting rear tail box according to claim 4, characterized in that: The locking assembly (6) includes two sets of locking pins (61), and two second connecting arms (32) are respectively provided with limiting hooks (321) on the outer side of one end. The first plate (511) and the second plate (512) of the two sets of side plates (51) are respectively provided with insertion holes (513) that penetrate vertically through them. The two sets of locking pins (61) penetrate the insertion holes (513) on the two sets of side plates (51) respectively, and can move up and down along the insertion holes (513) under the action of external force. When the box (1) moves to the upper side of the fixing frame (5), the limiting hook (321) moves to the space between the first plate (511) and the second plate (512). In this state, the locking pin (61) can move downward and embed into the limiting hook (321).

7. A hydraulically tilting rear tail box according to claim 2, characterized in that: The support frame (2) includes a horizontal first support (21) and a vertical second support (22). The second support (22) is fixed to the upper part of one side of the first support (21). The other end of the first connecting arm (31) is hinged to the first support (21). The second connecting arm (32) is hinged to the lower part of the second support (22). The box (1) is mounted on the first support (21).

8. A hydraulically tilting rear tail box according to claim 7, characterized in that: The box (1) has a hollow area in the middle that runs through both sides and extends downward to the first support (21), and the second support (22) is embedded in the hollow area.

9. A hydraulically tilting rear tail box according to claim 8, characterized in that: The hollow area is also provided with a spare tire (7) installed on the side of the second bracket (22), and the support frame (2) is provided with an extension bracket (23) on the side away from the fixed frame (5).

10. A motorhome, characterized in that: Includes a hydraulically tilting rear cargo box as described in any one of claims 1 to 9, wherein the hydraulically tilting rear cargo box is mounted on the rear of the motorhome via a mounting bracket (5).

Images