Electric campervan with trailer hitch

Abstract

This invention discloses a manned electric campervan with a tow hook, comprising: a folding frame, a steering wheel rotatably connected to the bottom of one end of the folding frame, a directional wheel fixedly provided at the other end of the folding frame, a steering rod assembly at the end of the folding frame with the steering wheel, the bottom end of the steering rod assembly being linked to the steering wheel, and the steering rod assembly controlling the steering of the steering wheel; the folding frame also includes a controller and a power supply, and a connecting assembly connected to one end of the folding frame that folds with the folding frame, the connecting assembly being connected to a tow hook for connecting other campervans. Using the above method, the tow hook allows for the additional expansion of other vehicle bodies to increase loading capacity to meet usage needs. Simultaneously, a second connecting member can also be used to connect other structural components to achieve different functions, and the second connecting member can drive other connected structural components to stand upright at the rear end of the folding frame to improve portability.

Description

Electric campervan with trailer hitch Technical Field

[0001] This invention relates to the field of camping vehicle technology, and in particular to a manned electric camping vehicle with a trailer hitch. Prior Technology

[0002] Electric campervans are popular due to their electric power assist, which greatly reduces the burden on users. However, these campervans have limited size; while larger sizes increase capacity, they reduce portability. Currently, engineers have designed double-layer or rear-door structures to increase the loading capacity of campervans. However, both methods have certain drawbacks. Double-layer structures, due to the increased height and weight, are prone to tipping over and becoming unstable during use. While rear-door structures can increase loading capacity, the increase is limited and far from sufficient for users with higher needs, resulting in existing campervans failing to meet usage requirements.

[0003] Therefore, there is an urgent need to design a manned electric campervan with a trailer hitch to overcome the shortcomings of one or more of the existing technologies mentioned above. Summary of the Invention

[0004] This invention is based on and claims priority to Chinese Patent Publication No. 2025200689997, with priority date of January 10, 2025, the entire contents of which are incorporated herein by reference.

[0005] The technical solution adopted by this invention to solve the above-mentioned technical problems is: a manned electric camping vehicle with a tow hook, comprising: a folding frame, the folding frame including a plurality of foldable side supports, the side supports being rectangular and forming a frame with openings at the top and bottom, adjacent side supports being connected together by supporting vertical rods, at least one foldable bottom support being connected to the bottom of the frame, a steering wheel being rotatably connected to one end of the folding frame, a steering wheel being fixedly provided at the other end of the folding frame, and a steering rod assembly being provided at the end of the folding frame with the steering wheel. The bottom end of the steering rod assembly is linked to the steering wheel, and the steering rod assembly can control the steering of the steering wheel; the folding frame is also provided with a controller and a power supply, the power supply is electrically connected to the controller, the steering wheel and / or the directional wheel and the steering rod assembly are electrically connected to the controller, the power supply is detachably connected to the folding frame, and the end of the folding frame away from the steering rod assembly is connected to a connecting assembly that can be folded with the folding frame, the connecting assembly can rotate relative to the folding frame in the horizontal and vertical planes, and the connecting assembly is connected to a tow hook for connecting other campervans.

[0006] In one embodiment of the present invention, the connecting assembly includes: a first connector located on both sides of the folding frame, a first end of the first connector being fixedly connected to the support vertical rod of the folding frame, and a second connector rotatably connected to the second end of each first connector, the second connector being rotatable relative to the first connector in the vertical direction.

[0007] In one embodiment of this invention, the trailer hook includes: a tow hook support rod, two tow hook support rods are provided, each rotatably connected to the second connecting member, the tow hook support rods are rotatable relative to the second connecting member in a horizontal direction, a third connecting member is rotatably connected to the ends of the two tow hook support rods away from the second connecting member, the two tow hook support rods are also rotatable relative to the third connecting member in a horizontal direction; a hook body, the first end of the hook body is rotatably connected to the third connecting member, the hook body is rotatable relative to the third connecting member in a horizontal direction, the second end of the hook body is arc-shaped, a sealing member is provided on the hook body, a protrusion is provided at the end of the sealing member away from the third connecting member, a groove is provided at the arc-shaped end of the hook body, the protrusion and the groove are adapted to each other, a locking lever is provided on the sealing member, a bolt is provided at one end of the locking lever, the bolt passes through the sealing member and is threadedly connected to the hook body.

[0008] In one embodiment of this invention, the tow hook support is detachably connected to the second connector via a quick-release pin.

[0009] In one embodiment of the present invention, the second end of the first connector is further provided with a limiting locking pin, and the end of the second connector connected to the first connector is provided with two locking holes that cooperate with the limiting locking pin. The two locking holes are used to cooperate with the limiting locking pin to restrict the rotation of the second connector at two predetermined positions.

[0010] In one embodiment of this invention, an anti-wear pad is provided at both the connection point between the tow hook support rod and the second connector and the connection point between the tow hook support rod and the third connector.

[0011] In one embodiment of this invention, the folding frame has a seat at at least one top end.

[0012] The advantages of this new design are: by setting up a tow hook, the electric campervan can be further extended with other vehicle bodies to increase the loading capacity to meet usage needs, and there will be no situation where the center of gravity is too high and it is easy to tip over. At the same time, the second connector can also be used to connect other structural components to achieve different functions. Furthermore, the second connector can drive the other structural components connected to it to stand upright at the rear of the folding frame to improve portability. Simple Explanation of the Diagram

[0013] Figure 1 is a schematic diagram of the structure of this novel invention. Figure 2 is a schematic diagram of the structure of the new connecting component. Figure 3 is a structural schematic diagram of the first and second connectors of this novel invention. Figure 4 is a schematic diagram of the new type of trailer hitch. Figure 5 is a schematic diagram of the use of this new extended foot pedal. Figure 6 is a schematic diagram of the use of this new type of extended storage rack. Figure 7 shows the folded state of this novel invention. Implementation

[0014] To make the above-mentioned objects, features, and advantages of this invention more apparent and understandable, the specific embodiments of this invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this invention. However, this invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this invention. Therefore, this invention is not limited to the specific embodiments disclosed below.

[0015] In this novel embodiment, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0016] In this novel embodiment, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0017] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] As shown in Figures 1-7, this invention provides a passenger-carrying electric camping vehicle with a tow hook, comprising: a folding frame 10, the folding frame 10 including a plurality of foldable side supports 11, the plurality of side supports 11 forming a rectangular frame with openings at the top and bottom, adjacent side supports 11 being connected together by supporting vertical rods, at least one foldable bottom support 12 being connected to the bottom of the frame, a steering wheel 13 being rotatably connected to one end of the bottom of the folding frame 10, a directional wheel 14 being fixedly provided at the other end of the folding frame 10, and a steering rod assembly 15 being provided at the end of the folding frame 10 with the steering wheel 13. The bottom end of 5 is linked to the steering wheel 13, and the steering rod assembly 15 can control the steering of the steering wheel 13; the folding frame 10 is also equipped with a controller and a power supply 16. The power supply 16 is electrically connected to the controller, the steering wheel 13 and / or the directional wheel 14 and the steering rod assembly 15 are electrically connected to the controller, the power supply 16 is detachably connected to the folding frame 10, and the end of the folding frame 10 away from the steering rod assembly 15 is connected to a connecting assembly 17 that can be folded with the folding frame 10. The connecting assembly 17 can rotate relative to the folding frame 10 in the horizontal and vertical planes. The connecting assembly 17 is connected to a tow hook 19 for connecting other campervans;

[0019] Specifically, the folding frame 10 includes a plurality of foldable side supports 11. In this embodiment, the side supports 11 are preferably "X"-shaped. The side supports 11 can be rotated and folded from the middle. The plurality of side supports 11 surround a rectangular frame with openings at the top and bottom. A support column is provided at each corner. The support column can be telescopic or non-telescopic. If it is non-telescopic, an adapter rod needs to be provided between the side support 11 and the support column to accommodate the height change of the side support 11 when folding. A foldable bottom support 12 is connected to the bottom of the frame. At least one bottom support 12 is provided to support the frame or drive the frame to fold. The side supports 11 located on both sides can be set as needed, with at least one. Two directional wheels 13 are rotatably provided at one end of the folding frame 10. The two directional wheels 13 can rotate horizontally under the folding frame 10 to adjust the walking direction of the folding frame 10. Two directional wheels 14 are provided at the other end of the folding frame 10. The orientation of the directional wheels 14 is fixed and cannot rotate horizontally to ensure safety and walking stability. To facilitate steering control of the steering wheel 13, a steering rod assembly 15 is connected to one end of the folding frame 10 where the steering wheel 13 is located. The bottom end of the steering rod assembly 15 is connected to the two steering wheels 13 through a steering structure. When the steering rod assembly 15 rotates laterally, it can drive the two steering wheels 13 to rotate. The steering structure can refer to the steering component of another utility model patent of the applicant, Chinese Utility Model Patent Application No. CN202420911630.3. The folding frame 10 is also equipped with a power supply 16 and a controller. The power supply 16 is electrically connected to the controller. The steering wheel 13 and / or the directional wheel 14 are hub motors. The steering wheel 13 and / or the directional wheel 14 are electrically connected to the controller. The steering rod assembly 15 is equipped with control buttons for controlling opening and closing, etc. The steering rod assembly 15 is also electrically connected to the controller. The steering wheel 13 and / or the directional wheel 14 can be started through the steering rod assembly 15. To facilitate charging of the power supply 16, the power supply 16 is detachably connected to the folding frame 10. To enhance the expandability of the folding frame 10, a connecting component 17 is detachably connected to the end of the folding frame 10 away from the end with the steering rod assembly 15. The connecting component 17 can rotate relative to the folding frame 10 in both the horizontal and vertical planes. The horizontal rotation is used to accommodate the folding of the folding frame 10, and the vertical rotation is used so that the connecting component 17 can stand upright at the rear end of the folding frame 10 after it is folded, thereby reducing space occupation. The connecting component 17 is also connected to a tow hook 19, which is used to connect to other campervans, which can be non-electric or electric campervans.

[0020] Furthermore, the connecting component 17 includes: a first connector 171, the first end of which is fixedly connected to the support vertical rod of the folding frame 10 and cannot be rotated, and is in a non-removable form. There are two first connectors 171, located on both sides of the folding frame 10 respectively. The second end of the first connector 171 is rotatably connected to a second connector 172 through a connector port. The second connector 172 can rotate vertically relative to the first connector 171 to drive the structure connected to the second connector 172 to stand upright at the rear end of the folding frame 10, thereby reducing the space occupied when it needs to be folded.

[0021] The second connector 172 is provided with two lugs at one end where it is connected to the first connector 171. The two lugs are set at a predetermined angle. The lugs are used to abut against the first connector 171 after the second connector 172 rotates a certain angle relative to the first connector 171, thereby restricting the continuous rotation of the second connector 172.

[0022] Furthermore, the trailer hitch 19 includes: a hitch support rod 179, which is rotatably connected to one end of the second connecting member 172 away from the first connecting member 171. The hitch support rod 179 can rotate relative to the second connecting member 172 in the horizontal plane. At one end of the two hitch support rods 179 away from the second connecting member 172, a third connecting member 173 is rotatably connected. The two hitch support rods 179 can also rotate relative to the third connecting member 173 in the horizontal plane, so that when the folding frame 10 is folded, the two hitch support rods 179 can approach each other as the folding frame 10 is folded; the trailer hitch 19 is connected to the third connecting member 173; a hook body 191, the first end of the hook body 191 is rotatably connected to the third connecting member 173, and the hook body 191 can rotate relative to the third connecting member 173 in the horizontal plane to be more flexible during the expansion of other camping trailers and during use, such as turning and other operations; the second end of the hook body 191 is arc-shaped, which is convenient for connecting with other camping trailers. Due to the open-loop shape of the second end of the hook body 191, the connection with other camping trailers is unstable. To avoid this situation, a sealing member 192 is provided on the hook body 191. The sealing member 192 is used to make the second end of the hook body 191 in a closed-loop state. The sealing member 192 is connected to the hook body 191 through a locking lever 195. One end of the locking lever 195 is connected to a bolt 196. The bolt 196 passes through the sealing member 192 and is threadedly connected to the hook body 191. The locking lever 195 is threadedly connected to the hook body 191 through the bolt 196. The tightening of the bolt 196 presses the sealing member 192 above the hook body 191, so that the hook body 191 forms a closed-loop structure through the sealing member 192. To prevent the sealing member 192 from rotating in the horizontal plane on the hook body 191, a convex block 193 is provided at one end of the hook body 191 away from the third connecting member 173. A groove 194 is opened at the end of the arc-shaped end of the hook body 191. The convex block 193 is adapted to the groove 194. When the sealing member 192 is fixed on the hook body 191, the convex block 193 is located in the groove 194, thereby restricting the horizontal rotation of the sealing member 1,92.

[0023] It should be noted that the second connecting member 172 can not only be connected to the hitch support rod 179, but also be used to connect other structural members. As shown in FIGS. 5 and 6, it includes but is not limited to a pedal or a storage board or a footrest with wheels, etc., to meet different usage requirements. When the folding frame 10 needs to be folded, the pedal can be removed. It only needs to set the second connecting member 172 as a universal interface according to the needs to connect different structures to achieve different functions.

[0024] Furthermore, in this embodiment, to facilitate the quick disassembly of the tow hook support rod 179, the tow hook support rod 179 and the second connector 172 can be connected by a button-type quick-release pin 176. When it is necessary to remove the tow hook support rod 179 to replace other structural components, the quick-release pin 176 can be pressed and the second connector 172 can be pulled out. At this time, the tow hook support rod 179 can be removed and other structural components can be replaced.

[0025] Furthermore, in this embodiment, to ensure that the structural components connected to the second connector 172 can be fixed in both the horizontal and vertical directions, a limiting pin 174 is provided at the second end of the first connector 171. Simultaneously, a locking hole 175, adapted to the limiting pin 174, is provided at the end of the second connector 172 connected to the first connector 171. Two locking holes 175 are provided, spaced apart, and are used to fix the position of the second connector 172 in the horizontal and vertical directions, respectively.

[0026] It should be noted that the locking lever 195 adopts the eccentric cam clamping rod of a bicycle tube clamp, so that after fixing, the eccentric cam clamping increases the rotational resistance of the locking lever 195, preventing it from rotating on its own and causing the sealing part 192 to loosen.

[0027] Furthermore, in this embodiment, in order to enable the second connector 172 to be fixed in the horizontal or vertical direction, a limiting locking pin 174 is provided at the second end of the first connector 171. At the same time, two locking holes 175 are provided at the end of the second connector 172 that is connected to the first connector 171. The locking holes 175 are adapted to the limiting locking pin 174. The two locking holes 175 are set at a predetermined angle so that the second connector 172 can be fixed in the horizontal or vertical direction at a predetermined angle under the restriction of the limiting locking pin 174, thus preventing shaking during use.

[0028] Furthermore, in this embodiment, since the tow hook support rod 179 is rotatable relative to the second connector 172 and the third connector 173, in order to avoid wear of the structural components due to friction, anti-wear pads 178 are respectively provided at the connection between the second connector 172 and the trailer support rod and at the connection between the third connector 173 and the tow hook support rod 179. Through the blocking of the anti-wear pads 178, friction between the tow hook support rod 179 and the second connector 172 and the third connector 173 is avoided.

[0029] Furthermore, in this embodiment, to enhance the user experience, a seat device 18 can be detachably provided above the folding frame 10. The number of seat devices 18 can be determined according to usage needs. If only one is provided, the seat device 18 is installed at the end of the folding frame 10 where the steering rod assembly 15 is located, so as to facilitate riding.

[0030] In summary, the tow hook allows the electric campervan to be extended with other vehicle bodies to increase loading capacity and meet usage needs without the risk of tipping over due to a high center of gravity. Furthermore, the second connector can be used to connect other structural components to achieve different functions. The second connector also allows other connected structural components to stand upright at the rear of the folding frame, improving portability.

[0031] This invention is not limited to the description and embodiments described herein, and thus other advantages and modifications can be readily realized by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

[0032] 10: Folding frame 11: Side support 12: Base support 13: Steering wheel 14: Directional Wheel 15: Steering Pole Assembly 16: Power supply 17: Connecting components 171: First connector 172: Second connector 173: Third connector 174: Limit Locking Pin 175: Keyhole 176: Quick-release pin 178: Anti-wear pad 179: Tow hook support rod 18: Seating Arrangement 19: Tow hook 191: Hook body 192: Sealing components 193: Bump 194: Groove 195: Locking lever 196: Bolt

Claims

1. A passenger-carrying electric campervan with a trailer hitch, comprising: A folding frame includes a plurality of foldable side supports, which are rectangular and form a frame with openings at the top and bottom. Adjacent side supports are connected together by support rods. At least one foldable bottom support is connected to the bottom of the frame. A steering wheel is rotatably connected to one end of the folding frame, and a directional wheel is fixedly provided at the other end. A steering rod assembly is also provided at the end of the folding frame with the steering wheel. The bottom end of the steering rod assembly is linked to the steering wheel, and the steering rod assembly can control the steering of the steering wheel. The folding frame also includes a controller and a power supply. The power supply is electrically connected to the controller. The steering wheel and / or the directional wheel and the steering rod assembly are electrically connected to the controller. The power supply is detachably connected to the folding frame. A connecting assembly is connected to the end of the folding frame away from the steering rod assembly. The connecting assembly can rotate relative to the folding frame in both horizontal and vertical planes. The connecting assembly is connected to a tow hook for connecting to other campervans.

2. A passenger-carrying electric campervan with a trailer hitch as described in claim 1, wherein the connection assembly includes: A first connector is located on both sides of the folding frame. The first end of the first connector is fixedly connected to the support vertical rod of the folding frame. The second end of each first connector is rotatably connected to a second connector, which can rotate vertically relative to the first connector.

3. A passenger-carrying electric campervan with a trailer hitch as described in claim 2, wherein the trailer hitch comprises: Two tow hook supports are provided, each rotatably connected to the second connecting member. The tow hook supports can rotate horizontally relative to the second connecting member. A third connecting member is rotatably connected to the ends of the two tow hook supports away from the second connecting member. The two tow hook supports can also rotate horizontally relative to the third connecting member. A hook body is provided, with its first end rotatably connected to the third connecting member. The hook body can rotate horizontally relative to the third connecting member. The second end of the hook body is arc-shaped. A sealing member is provided on the hook body. A protrusion is provided at the end of the sealing member away from the third connecting member. A groove is provided at the arc-shaped end of the hook body. The protrusion and the groove are adapted to each other. A locking lever is provided on the sealing member. A bolt is provided at one end of the locking lever. The bolt passes through the sealing member and is threadedly connected to the hook body.

4. A passenger electric campervan with a tow hook as described in claim 3, wherein the tow hook strut is detachably connected to the second connector via a quick-release pin.

5. The electric campervan with a trailer hitch as described in claim 2, wherein the second end of the first connector is further provided with a limiting lock pin, and the end of the second connector connected to the first connector is provided with two locking holes that cooperate with the limiting lock pin, the two locking holes being used to cooperate with the limiting lock pin to restrict the rotation of the second connector in two predetermined positions.

6. The electric campervan with a trailer hitch as described in claim 3, wherein an anti-abrasion pad is provided at both the connection point of the trailer hitch strut to the second connector and the connection point to the third connector.

7. A passenger electric campervan with a trailer hitch as described in claim 1, wherein a seat is provided at the top of at least one end of the folding frame.

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