Manned electric camping car with tow hook

By designing a folding frame with a trailer hitch on the electric campervan, the problem of insufficient loading capacity is solved, enabling additional capacity expansion and diversified use functions, while ensuring the stability and portability of the vehicle.

CN223803712UActive Publication Date: 2026-01-16SHENZHEN YUNRUI IOT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520068999.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-16
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing electric camping vehicles have limited loading capacity. The double-layer structure increases the vehicle height, leading to instability, while the rear-opening door structure does not provide enough additional capacity to meet large loading needs.

Method used

Design a folding vehicle frame with a trailer hitch, connecting steering wheels and directional wheels via foldable side and bottom brackets, equipped with a controller and power supply, and a detachable connecting component to attach the trailer hitch for connecting to other campervans, enabling additional loading capacity expansion.

Benefits of technology

It expands the loading capacity of electric campervans, avoids the risk of tipping over due to a high center of gravity, and the connecting components can be used for multiple functions, improving portability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The manned electric camping car comprises a folding car frame, the bottom of one end of the folding car frame is rotationally connected with a direction wheel, the other end of the folding car frame is fixedly provided with a directional wheel, the end, provided with the direction wheel, of the folding car frame is further provided with a direction lever assembly, and the bottom end of the direction lever assembly is in linkage connection with the direction wheel; the direction lever assembly can control the steering of the direction wheel; the folding vehicle frame is further provided with a controller and a power source, one end of the folding vehicle frame is connected with a connecting assembly capable of being folded along with the folding vehicle frame, and the connecting assembly is connected with a towing hook used for being connected with other camping vehicles. Meanwhile, the second connecting piece can be used for being connected with other structural pieces so as to achieve different use functions, and the second connecting piece can drive other structural pieces connected with the second connecting piece to be erected at the rear end of the folding frame so as to improve portability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of camping car, especially to a human-powered electric camping car with trailer hook. BACKGROUND

[0002] Electric camping car is welcomed by the majority of users because it has the function of electric power assistance and can greatly reduce the use burden of users, but the volume of such camping car is limited, the volume and capacity are increased, but the carrying convenience is low, at present, engineers design double-layer structure or rear door structure to increase the loading capacity of the camping car in order to expand the loading volume of the camping car, but both of the two ways have certain defects, among them, the double-layer structure, because the height of the vehicle body is increased, the weight is moved up, which easily leads to the rollover of the camping car when it is used, and is unstable, while the rear door can increase the loading capacity, but the increased capacity is limited, which is far from enough for some users with large demand, so that the existing camping car cannot meet the use demand.

[0003] Therefore, it is urgent to design a human-powered electric camping car with trailer hook to overcome one or more deficiencies of the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a human-powered electric camping car with trailer hook, which comprises a folding frame, a plurality of foldable side supports, a plurality of side supports surrounding into a frame with upper and lower openings, adjacent side supports are connected together through supporting vertical rods, at least one foldable bottom support is connected to the bottom of the frame, a directional wheel is rotatably connected to one end of the folding frame, a directional wheel is fixedly arranged at the other end of the folding frame, a directional rod assembly is arranged at one end of the folding frame provided with the directional wheel, the bottom end of the directional rod assembly is connected with the directional wheel, and the directional rod assembly can control the steering of the directional wheel.

[0005] In a preferred embodiment, the connecting assembly comprises: first connecting pieces located on both sides of the folding frame, first ends of the first connecting pieces being fixedly connected with support vertical rods of the folding frame, second ends of each of the first connecting pieces being rotatably connected with second connecting pieces, the second connecting pieces being rotatable in a vertical direction relative to the first connecting pieces.

[0006] In a preferred embodiment, the trailer hook comprises: trailer hook support rods, two of which are rotatably connected with the second connecting pieces, the trailer hook support rods being rotatable in a horizontal direction relative to the second connecting pieces, third connecting pieces being rotatably connected with ends of the trailer hook support rods away from the second connecting pieces, the trailer hook support rods being rotatable in a horizontal direction relative to the third connecting pieces; a hook body, a first end of the hook body being rotatably connected with the third connecting pieces, the hook body being rotatable in a horizontal direction relative to the third connecting pieces, a second end of the hook body being arc-shaped, a sealing piece being arranged on the hook body, the sealing piece being provided with a protrusion at an end away from the third connecting pieces, the hook body being provided with a groove at an end of the arc-shaped hook body, the protrusion and the groove being matched, the sealing piece being provided with a locking lever, one end of the locking lever being provided with a bolt, the bolt being threadedly connected with the hook body through the sealing piece.

[0007] In a preferred embodiment, the trailer hook support rods are detachably connected with the second connecting pieces through quick-release pins.

[0008] In a preferred embodiment, the second ends of the first connecting pieces are further provided with limit lock pins, one end of the second connecting pieces being provided with two lock holes matched with the limit lock pins, the two lock holes being used for limiting rotation of the second connecting pieces at two predetermined positions in cooperation with the limit lock pins.

[0009] In a preferred embodiment, the trailer hook support rods are provided with anti-wear pads at positions connected with the second connecting pieces and the third connecting pieces.

[0010] In a preferred embodiment, at least one end of the folding frame is provided with a seat device at a top portion.

[0011] The electric camping vehicle of the present application has the following beneficial effects: the trailer hook is arranged, so that the electric camping vehicle can additionally expand other vehicle bodies, the loading capacity is improved to meet the use requirements, the center of gravity is not too high to cause the vehicle to easily tip over, the second connecting pieces can be used to connect other structural pieces to realize different use functions, and the second connecting pieces can drive other structural pieces connected therewith to be erected at the rear end of the folding frame to improve portability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The figure is a structural schematic view of the present application.

[0013] Figure 2 It is a structure schematic view of the connecting assembly of the utility model;

[0014] Figure 3 It is a structure schematic view of the first connecting piece and the second connecting piece of the utility model;

[0015] Figure 4 It is a structure schematic view of the trailer hook of the utility model;

[0016] Figure 5 It is a use schematic view of the utility model's expansion footboard;

[0017] Figure 6 It is a use schematic view of the utility model's expansion storage rack

[0018] Figure 7 It is a folding state view of the utility model.

[0019] In the drawing:

[0020] 10, folding frame; 11, side support; 12, bottom support; 13, direction wheel; 14, directional wheel; 15, direction rod assembly; 16, power supply; 17, connecting assembly; 171, first connecting piece; 172, second connecting piece; 173, third connecting piece; 174, limit lock pin; 175, lock hole; 176, quick release bolt; 178, wear-resistant pad; 179, trailer hook support rod; 18, seat device; 19, trailer hook; 191, hook body; 192, sealing element; 193, protruding block; 194, recess; 195, locking lever; 196, bolt. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the following disclosed specific embodiments.

[0022] In the description of the embodiments of the utility model, it needs to be explained that, unless there is explicit stipulation and limitation, the terms, "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, also can be inseparable connection, can be direct connection, also can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, also can be indirect communication through intermediate medium. Among them, "fixing" refers to the relative position relationship of each other after connection does not change. The orientation language mentioned in the embodiments of the utility model, for example, "inner", "outer", "top", "bottom" and the like, only refers to the direction of the drawing, therefore, the orientation language used is for better, more clearly illustrate and understand the embodiments of the utility model, and is not indicated or implied that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the utility model.

[0023] In the embodiments of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0024] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated object, which means that there can be three kinds of relationships, for example, A and / or B, which can mean that there are three kinds of situations, namely, A alone, A and B exist at the same time, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0025] In the description of the embodiments of the utility model, "one embodiment" or "some embodiments" and the like mean that in one or more embodiments of the utility model, the specific features, structures or characteristics described in connection with the embodiment are included. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in the description are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but are not limited to", unless otherwise specifically emphasized. Therefore, the utility model is not limited by the specific embodiments disclosed below.

[0026] As Figures 1-7As shown, the utility model provides a kind of human-powered electric camping car with trailer hook, comprising: folding frame 10, the folding frame 10 includes several foldable side supports 11, several side supports 11 are rectangularly surrounded into the frame of upper and lower openings, the side support 11 between adjacent is connected together by support vertical pole, the bottom of the frame is connected with at least one foldable bottom support 12, one end of the folding frame 10 bottom rotary connection has direction wheel 13, the other end of the folding frame 10 is fixed with directional wheel 14, the one end of the folding frame 10 with direction wheel 13 is equipped with direction rod assembly 15, the bottom end of the direction rod assembly 15 is linked with the direction wheel 13, the direction rod assembly 15 can control the steering of the direction wheel 13;The folding frame 10 is further equipped with controller and power supply 16, the power supply 16 is electrically connected with the controller, the direction wheel 13 and / or the directional wheel 14 and the direction rod assembly 15 are electrically connected with the controller, the power supply 16 is detachably connected with the folding frame 10, the folding frame 10 is connected with the connecting assembly 17 that can be folded with the folding frame 10 away from one end with the direction rod assembly 15, the connecting assembly 17 can be rotated in horizontal plane and vertical plane relative to the folding frame 10, the connecting assembly 17 is connected with a trailer hook 19, for connecting other camping car;

[0027] Specifically, the folding frame 10 comprises a plurality of foldable side supports 11, which are preferably "X" shaped in this embodiment. The side supports 11 can be folded from the middle. The plurality of side supports 11 surround a rectangular frame that is open 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 is provided between the side support 11 and the support column to adapt to the change in height of the side support 11 when it is folded. A foldable bottom support 12 is connected to the bottom of the frame. The bottom support 12 is provided with at least one support for opening the frame or driving the frame to fold. The side supports 11 on both sides can be provided according to requirements, and there is at least one. Two direction wheels 13 are provided at one end of the folding frame 10. The two direction wheels 13 can be horizontally rotated 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 be horizontally rotated to ensure safety and stability of walking. To facilitate control of the direction of the direction wheels 13, a direction lever assembly 15 is further connected to the end of the folding frame 10 where the direction wheels 13 are provided. The bottom end of the direction lever assembly 15 is connected to the two direction wheels 13 through a steering structure. When the direction lever assembly 15 is rotated in the transverse direction, it can drive the two direction wheels 13 to rotate. The steering structure can refer to the control direction assembly of the applicant's other utility model patent with application number CN202420911630.3. A power supply 16 and a controller are further provided on the folding frame 10. The power supply 16 is electrically connected to the controller. The direction wheels 13 and / or the directional wheels 14 are hub motors. The direction wheels 13 and / or the directional wheels 14 are electrically connected to the controller. Control buttons for turning on / off are provided on the direction lever assembly 15. The direction lever assembly 15 is also electrically connected to the controller. The direction of the direction wheels 13 and / or the directional wheels 14 can be controlled through the direction lever assembly 15. To facilitate charging of the power supply 16, the power supply 16 is detachably connected to the folding frame 10. To improve the expandability of the folding frame 10, a connection assembly 17 is detachably connected to the end of the folding frame 10 away from the direction lever assembly 15. The connection assembly 17 can be rotated in the horizontal plane and the vertical plane relative to the folding frame 10. The horizontal plane rotation is used to adapt to the folding of the folding frame 10. The vertical plane rotation is used to stand the connection assembly 17 at the tail end of the folding frame 10 after the folding frame 10 is folded to reduce the space occupied. The connection assembly 17 is further connected to a trailer hook 19. The trailer hook 19 is used to connect other camping cars outside. The camping cars can be non-powered or powered.

[0028] Further, the connecting assembly 17 comprises first connecting pieces 171, first ends of the first connecting pieces 171 are fixedly connected with the support vertical rods of the folding frame 10 and cannot rotate and are in a non-detachable form, two first connecting pieces 171 are arranged at two sides of the folding frame 10 respectively, second ends of the first connecting pieces 171 are rotatably connected with second connecting pieces 172 through connecting ports, the second connecting pieces 172 can vertically rotate relative to the first connecting pieces 171, so as to drive the structure connected with the second connecting pieces 172 to stand at the rear end of the folding frame 10, thereby reducing the space occupied when folding is needed.

[0029] Wherein, one end of the second connecting piece 172 connected with the first connecting piece 171 is provided with two blocking ears, the two blocking ears are arranged at a predetermined angle, the blocking ears are used for abutting against the first connecting piece 171 after the second connecting piece 172 rotates by a certain angle relative to the first connecting piece 171, so as to limit the continuous rotation of the second connecting piece 172.

[0030] Further, the trailer hook 19 comprises: a trailer hook support rod 179, which is rotationally connected to the second connecting piece 172 away from the first connecting piece 171, and can rotate relative to the second connecting piece 172 in the horizontal plane; the two trailer hook support rods 179 are rotationally connected to the third connecting piece 173 at their ends away from the second connecting piece 172, and can rotate relative to the third connecting piece 173 in the horizontal plane, so that the two trailer hook support rods 179 can be brought together with the folding frame 10 when the folding frame 10 is folded; the trailer hook 19 is connected to the third connecting piece 173; a hook body 191, which is rotationally connected to the third connecting piece 173 at its first end, and can rotate relative to the third connecting piece 173 in the horizontal plane, so that it can be more flexible when other camping cars are expanded and used, such as turning and other operations; the second end of the hook body 191 is arc-shaped, which facilitates connection with other camping cars. Due to the open-loop shape of the second end of the hook body 191, the connection with other camping cars is unstable. To avoid this, a sealing piece 192 is also provided on the hook body 191, which is used to keep the second end of the hook body 191 in a closed loop state. The sealing piece 192 is connected to the hook body 191 by a locking lever 195. One end of the locking lever 195 is connected to a bolt 196, which is threadedly connected to the hook body 191 through the sealing piece 192. The locking lever 195 is threadedly connected to the hook body 191 by the bolt 196. The tightening of the bolt 196 presses the sealing piece 192 above the hook body 191, so that the hook body 191 forms a closed loop structure through the sealing piece 192. To avoid the horizontal rotation of the sealing piece 192 on the hook body 191, a protrusion 193 is provided at the end of the sealing piece 192 away from the third connecting piece 173. A groove 194 is provided at the end of the hook body 191. The protrusion 193 and the groove 194 are matched. When the sealing piece 192 is fixed on the hook body 191, the protrusion 193 is located in the groove 194, thereby limiting the horizontal rotation of the sealing piece 192.

[0031] It should be noted that the second connecting piece 172 can not only connect the trailer hook support rod 179, but also be used to connect other structural members, such as Figure 5 、 6 as shown, including but not limited to a pedal or a storage plate or a foot pedal with wheels, to meet different use requirements. When the folding frame 10 needs to be folded, the pedal can be removed. Only the second connecting piece 172 needs to be set as a universal interface according to the requirements to connect different structures to achieve different functions.

[0032] Further, in the embodiment, in order to facilitate quick disassembly of the tow hook support rod 179, the tow hook support rod 179 and the second connecting piece 172 can be connected through a button type quick release pin 176. When it is necessary to disassemble the tow hook support rod 179 and replace other structural parts, the quick release pin 176 can be pressed and pulled out of the second connecting piece 172, and at this time, the tow hook support rod 179 can be removed and other structural parts can be connected.

[0033] Further, in the embodiment, in order to fix the structural parts connected by the second connecting piece 172 in the horizontal direction and the vertical direction, a limiting lock pin 174 is arranged at the second end of the first connecting piece 171, and a lock hole 175 adapted to the limiting lock pin 174 is arranged at the end of the second connecting piece 172 connected to the first connecting piece 171. The lock hole 175 is provided with two lock holes 175 arranged at intervals and used for fixing the position of the second connecting piece 172 in the horizontal direction and the vertical direction,

[0034] It should be noted that the locking lever 195 adopts an eccentric cam clamping rod of a bicycle pipe clamp, so that after being fixed, the rotation resistance of the locking lever 195 is increased through the eccentric cam clamping, and self-rotation is avoided to cause loosening of the sealing part 192.

[0035] Further, in the embodiment, in order to fix the second connecting piece 172 in the horizontal direction or the vertical direction, a limiting lock pin 174 is arranged at the second end of the first connecting piece 171, and two lock holes 175 adapted to the limiting lock pin 174 are arranged at the end of the second connecting piece 172 connected to the first connecting piece 171. The two lock holes 175 are arranged at a predetermined angle, so that the second connecting piece 172 can be fixed in the predetermined angle in the horizontal direction or the vertical direction under the limitation of the limiting lock pin 174, and shaking in the use process is avoided.

[0036] Further, in the embodiment, since the tow hook support rod 179 can rotate relative to the second connecting piece 172 and the third connecting piece 173, in order to avoid abrasion of the structural parts caused by friction, an anti-abrasion pad 178 is arranged at the connection between the second connecting piece 172 and the tow hook support rod 179 and at the connection between the third connecting piece 173 and the tow hook support rod 179. Through the blocking of the anti-abrasion pad 178, friction between the tow hook support rod 179 and the second connecting piece 172 and the third connecting piece 173 is avoided.

[0037] Further, in the embodiment, in order to improve the use experience, a seat device 18 can be detachably arranged above the folding frame 10. The number of the seat device 18 can be determined according to the use requirement. If only one seat device 18 is arranged, the seat device 18 is installed at one end of the folding frame 10 provided with the direction lever assembly 15, so as to facilitate riding.

[0038] In summary, through the setting of the trailer hook, the electric camping car can additionally expand other car bodies, so as to improve the loading capacity to meet the use demand, and the center of gravity is not too high to easily tip over, and the second connecting piece can also be used to connect other structural members to realize different use functions, and the second connecting piece can drive other structural members connected thereto to stand at the rear end of the folding frame, so as to improve portability

[0039] The utility model is not limited to the description in the specification and the embodiment, therefore, other advantages and modifications can be easily realized by the person skilled in the art, and the utility model is not limited to specific details, representative equipment and the drawing examples shown and described here, without departing from the general concept of the spirit and scope defined by the claims and equivalent range.

Claims

1. A people-mover electric camping car with a trailer hook, characterized in that, The utility model relates to a folding frame, the folding frame includes several foldable side supports, several side supports are rectangularly surrounded and are opened in the frame of top and bottom, the bottom of the frame is connected with at least one foldable bottom support, one end of the folding frame bottom rotationally connected has directional wheel, the other end of the folding frame is fixed with directional wheel, the one end of folding frame is equipped with directional rod assembly with directional wheel, the bottom end of directional rod assembly is linked with directional wheel, and directional rod assembly can control the steering of directional wheel, the folding frame is equipped with controller and power supply, the power supply is electrically connected with controller, directional wheel and / or directional wheel and directional rod assembly are electrically connected with controller, and power supply is detachably connected with folding frame, the one end of folding frame is connected with the connecting assembly that can be folded with folding frame away from being equipped with directional rod assembly, and connecting assembly can rotate in horizontal plane and vertical plane relative to folding frame, and connecting assembly is connected with trailer hook for connecting other camping cars. The connecting assembly includes: first connecting pieces located on both sides of the folding frame, first ends of the first connecting pieces are fixedly connected with the support vertical rods of the folding frame, and second ends of each first connecting piece are rotationally connected with second connecting pieces that can rotate vertically relative to the first connecting pieces.

2. The manned electric camper with trailer hitch of claim 1, wherein, The trailer hook includes: tow hook support rods, two tow hook support rods are rotationally connected with the second connecting pieces, the tow hook support rods can rotate horizontally relative to the second connecting pieces, third connecting pieces are rotationally connected with one ends of the two tow hook support rods away from the second connecting pieces, and the two tow hook support rods can also rotate horizontally relative to the third connecting pieces; a hook body, a first end of the hook body is rotationally connected with the third connecting piece, the hook body can rotate horizontally relative to the third connecting piece, a second end of the hook body is arc-shaped, a sealing piece is arranged on the hook body, a protrusion is arranged on one end of the sealing piece away from the third connecting piece, a groove is arranged on one end of the hook body that is arc-shaped, the protrusion and the groove are matched, a locking lever is arranged on the sealing piece, and one end of the locking lever is provided with a bolt that is threadedly connected with the hook body through the sealing piece.

3. The manned electric camper with trailer hitch of claim 2, wherein, The tow hook support rods are detachably connected with the second connecting pieces through quick-release pins.

4. The manned electric camper with trailer hitch of claim 3, wherein, Second ends of the first connecting pieces are also provided with limiting lock pins, one end of the second connecting piece connected with the first connecting pieces is provided with two lock holes matched with the limiting lock pins, and the two lock holes are used for limiting rotation of the second connecting piece at two predetermined positions in cooperation with the limiting lock pins.

5. The manned electric camper with trailer hitch of claim 2, wherein, The tow hook support rods and the second connecting pieces are provided with anti-wear pads at the connecting positions.

6. The manned electric camper with trailer hitch of claim 3, wherein, At least one end of the folding frame is provided with a seat device.

7. The manned electric camper with trailer hitch of claim 1, wherein, ​

Citation Information

Patent Citations

  • Multifunctional steering yoke of folding electric camping car

    CN222136767U