WO2025256502A1 - Large-capacity rideable three-wheel electric folding wagon - Google Patents

Abstract

Disclosed in the present application is a large-capacity rideable three-wheel electric folding wagon, comprising a folding wagon body, which is a collapsible wagon body, wherein the folding wagon body has a riding portion and a loading portion, the riding portion being triangular, and the loading portion being rectangular; at least three wheels are provided at the bottom of the folding wagon body, with one of the wheels or two wheels at the same end serving as directional wheels, and at least one wheel being a driving wheel; the folding wagon body further has a directional lever assembly that is rotationally arranged, the directional lever assembly being connected to the directional wheels; and a seat assembly is also detachably connected to the top of the riding portion. In this way, the riding portion is arranged in a triangular shape, so that the entire folding wagon body is bullet shaped, which changes the shape of the folding wagon body, is more original, and has lower cost than the prior art. In addition, the seat assembly is provided on the riding portion, such that the folding wagon body can carry people and is more labor-saving during use, which effectively improves the use experience of the folding wagon body, and the folding wagon body can also be collapsed normally to reduce the volume, making it convenient to carry.

Description

A three-wheeled folding electric trailer with a large riding capacity Technical Field

This utility model relates to the field of electric trailer technology, and in particular to a three-wheeled folding electric trailer with a large riding capacity.

Background Technology

Existing folding electric trailers only have electric assist, which can reduce the effort required by users to some extent. However, these electric trailers still require the user to pull from the front. With prolonged use, users' leg strength is greatly exhausted, and they are prone to foot fatigue and pain. At the same time, long-term walking also leads to physical fatigue, which greatly affects the user experience of the electric trailer. In addition, most existing electric trailers are rectangular in shape, which is quite common and lacks appeal.

Therefore, there is an urgent need to design a three-wheeled folding electric trailer with a large riding capacity to overcome the shortcomings of one or more of the above-mentioned existing technologies.

Summary of the Invention

The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a three-wheeled folding electric trailer with a large riding capacity is provided, characterized in that it includes: a folding body, the folding body is a convergent body, the folding body has a connected riding part and a loading part, the riding part is triangular, the loading part is rectangular, the bottom of the folding body is provided with at least three wheels, one of which or two of the wheels at the same end are rotatably connected to the folding body as steering wheels, and at least one of the wheels is a drive wheel, the folding body is also rotatably provided with a steering rod assembly, the steering rod assembly is connected to the steering wheel, and is used to control the steering of the steering wheel, and the top of the riding part can also be detachably connected with a seat assembly.

In one embodiment, the folding vehicle body includes: a plurality of folding brackets, the folding brackets being "X"-shaped and rotatable at their intersections, the plurality of folding brackets surrounding each other, two adjacent folding brackets being connected together by a support column, each support column having a connecting seat at its top and bottom, and the wheel being connected to the corresponding connecting seat.

In one embodiment, the steering rod assembly includes: a telescopic rod and a steering handle, the steering handle being fixedly connected to the inner rod of the telescopic rod, and the steering handle being provided with a speed control device and a braking device for controlling the driving speed.

In one embodiment, a clamping device is provided on the support column or the folding bracket corresponding to the directional rod assembly, the clamping device being used to restrict the directional rod assembly to be in an upright state.

In one embodiment, one of the wheels is a steering wheel, the steering rod assembly is located above the steering wheel and fixedly connected to the steering wheel, and the bottom of the folding vehicle body corresponding to the steering rod assembly is provided with a foldable footrest.

In one embodiment, the two wheels at the same end are steering wheels, and a foldable steering assembly is connected between the two steering wheels. The steering rod assembly is located between the two steering wheels and is rotatably connected to the center of the steering assembly. The steering rod assembly drives the steering assembly to move, and the steering assembly drives the steering wheels to rotate.

In one embodiment, a bushing is rotatably connected to the bottom end of the steering rod assembly, and support rods are rotatably connected to both ends of the bushing, with the end of the support rod away from the bushing rotatably connected to the folding vehicle body.

In one embodiment, the seat assembly includes: a rotating seat, two seat support rods, the rotating seat having two rotatable rotating parts, the rotating seat being rotatably disposed on the top of one of the supporting columns, one end of each of the two seat support rods being rotatably connected to the rotating seat, the seat support rods being vertically rotatable relative to the rotating seat, the end of the seat support rod away from the rotating seat being engaged with the top of the corresponding supporting column, and a support member being strung across the two seat support rods and detachably connected to the seat support rods.

In one embodiment, two seat assemblies are provided, each seat assembly including: a rotating seat and a seat support rod; the rotating seat is rotatably disposed on the top of one of the support columns at the same end as the direction rod assembly, one end of the seat support rod is rotatably connected to the rotating seat, the seat support rod can rotate vertically relative to the rotating seat, and the end of the seat support rod away from the rotating seat is engaged with the top of the corresponding support column; the two seat support rods are straddled by a support member and detachably connected to the seat support rod.

In one embodiment, the support member is either a rigid structural member or a flexible structural member.

In one embodiment, the folding vehicle body is further provided with a controller and a power source electrically connected to the controller, the drive wheel is electrically connected to the controller, and the steering rod assembly is electrically connected to the controller for operating the drive wheel.

In one embodiment, the riding section and the loading section are each provided with a base support assembly.

In one embodiment, the clamping device includes: a clamp sleeve and a limiting member; the clamp sleeve is adapted to the steering rod assembly, and the limiting member is movably disposed on the clamp sleeve, the limiting member being used to restrict the pull rod within the clamp sleeve.

In one embodiment, the limiting member includes: a hoop; the hoop is arc-shaped, one end of the hoop is rotatably connected to one end of the hoop sleeve, the other end of the hoop sleeve has a hoop groove adapted to the hoop, and the top of the end of the hoop sleeve with the hoop groove is also provided with a spring pin.

In one embodiment, a limiting pin is provided at the end of the hoop away from the hoop sleeve that is rotatably connected to it, and the limiting pin is used to restrict the hoop within the hoop groove.

In one embodiment, the limiting member includes: a hoop; one end of the hoop is rotatably connected to one end of the hoop sleeve, and the other end of the hoop sleeve has a hoop groove adapted to the hoop, and the hoop is engaged in the hoop groove.

In one embodiment, the hoop bar is a magnetic metal component, and the hoop groove is further provided with a magnetic component, which magnetically engages with the hoop bar.

The beneficial effects of this utility model are as follows: by setting the riding part into a triangle, the overall shape of the folding vehicle body is bullet-shaped. Without affecting the loading of the folding vehicle body, the shape of the folding vehicle body is changed, which is different from the existing technology, more novel, and lower in cost compared to the existing technology. At the same time, by setting a seat component on the riding part, the folding vehicle body realizes the passenger carrying function, which makes it easier for users to use and effectively improves the user experience of the folding vehicle body. In addition, the folding vehicle body can also be properly folded and reduced in size, making it easy to carry.

Attached Figure Description

Figure 1 is a schematic diagram of the structure of this utility model;

Figure 2 is a plan view of this utility model;

Figure 3 is a structural schematic diagram of the steering rod assembly of this utility model;

Figure 4 is a structural schematic diagram of the seat assembly of this utility model;

Figure 5 shows the towing state diagram of this utility model;

Figure 6 shows the folded state of this utility model;

Figure 7 is a structural schematic diagram of the clamp device of this utility model;

Figure 8 is a structural schematic diagram of another embodiment of the clamp device of this utility model.

In the picture:

10. Folding frame; 101. Riding section; 102. Loading section; 103. Wheel; 104. Folding bracket; 105. Support column; 106. Connecting seat; 107. Clamping device; 108. Footrest; 11. Steering rod assembly; 111. Telescopic rod; 112. Steering handle; 113. Speed control device; 114. Braking device; 20. Seat assembly; 21. Rotating seat; 22. Rotating part; 23. Seat support rod; 24. Card holder; 25. Support component; 26. Controller; 27. Power supply; 28. Base bracket assembly; 281. Base support rod; 282. Bracket base; 30. Clamp sleeve; 31. Limiting component; 32. Clamp groove; 33. Limiting pin; 34. Spring pin.

Detailed Implementation

To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model 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 utility model. However, this utility model 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 utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

In this embodiment of the invention, 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 with "first" and "second" may explicitly or implicitly include one or more of that feature.

In this embodiment of the utility model, "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 three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.

References to "one embodiment" or "some embodiments" as used 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.

As shown in Figures 1-6, this utility model provides a three-wheeled folding electric trailer with a large riding capacity. It is characterized by comprising: a folding body 10, which is a convergent body, having a connected riding section 101 and a loading section 102. The riding section 101 is triangular, and the loading section 102 is rectangular. The bottom of the folding body 10 is provided with at least three wheels 103, one of which or two wheels on the same side are rotatably connected to the folding body 10 as steering wheels, and at least one wheel 103 is a drive wheel. The folding body 10 is also rotatably provided with a steering rod assembly 11, which is connected to the steering wheels for controlling the steering of the steering wheels. A seat assembly 20 is detachably connected to the top of the riding section 101.

Specifically, the folding vehicle body 10 includes a riding section 101 and a loading section 102. The riding section 101 is triangular, and the loading section 102 is rectangular. The riding section 101 and the loading section 102 are connected, which enhances the loading capacity of the folding vehicle body 10. The folding vehicle body 10 is a convergent type, meaning that the folding of the folding vehicle body 10 converges from the periphery to the center. This folding method minimizes the volume of the folding vehicle body 10 after folding, improving its portability. At least three wheels 103 are provided at the bottom of the folding vehicle body 10, supporting it. Preferably, one wheel 103 is provided at the bottom of the riding section 101, and two wheels 103 are provided at the bottom of the loading section 102. One of the three wheels 103, or two wheels at the same end, are directional wheels that can rotate laterally relative to the folding vehicle body 10, used to control the direction of movement of the folding vehicle body 10. At least one of the three wheels 103 is a drive wheel. The drive wheel is a wheel 103 with an internal hub motor, similar to the wheel 103 of an electric scooter. The folding body 10 also has a steering rod assembly 11, located at the end where the drive wheel is located. The steering rod assembly 11 is connected to the wheel 103, which serves as the steering wheel. The steering rod assembly 11 can rotate laterally on the folding body 10 to control the steering of the connected wheel 103. The steering rod assembly 11 can also rotate vertically relative to the folding body 10 to switch between an upright or tilted state to adapt to different usage needs. For example, the upright state is more suitable for riding, while the tilted state is more suitable for towing, as shown in Figure 7. A seat assembly 20 can also be detachably connected to the top of the riding section 101. The seat assembly 20 supports the user, allowing the user to sit on the folding body 10 while riding, saving the user's leg strength and thus improving the user experience of the electric trailer.

Furthermore, the folding vehicle body 10 includes: a plurality of folding brackets 104, the folding brackets 104 being "X"-shaped and rotatable at the intersection, the plurality of folding brackets 104 surrounding each other, and two adjacent folding brackets 104 being connected together by a support column 105, each support column 105 having a connecting seat 106 at its top and bottom, and the wheel 103 being connected to the corresponding connecting seat 106;

Specifically, both the riding section 101 and the loading section 102 are composed of several folding brackets 104. The riding section 101 has at least one folding bracket 104 on each side, depending on its length. If the length of the riding section 101 is to be increased, two folding brackets can be provided on each side. The loading section 102 is similar; if the width of the loading section 102 needs to be increased, two folding brackets 104 are provided at the end of the loading section 102 furthest from the riding section 101. The folding body 10 is formed by multiple folding brackets 104, and a support column 105 is provided between two adjacent folding brackets 104. Connecting seats 106 are provided at the top and bottom of the support column 105, respectively. Two adjacent folding brackets 104 are rotatably connected to their corresponding connecting seats 106. The frame 104 is X-shaped and can rotate at the intersection. Therefore, the height of the folding frame 104 changes when it rotates. To ensure sufficient movement space for the folding frame 104, the support column 105 needs to be telescopic. When the folding frame 104 rotates, the change in height will cause the support column 105 to extend or retract, allowing the folding frame 104 to fold or unfold smoothly. Alternatively, a rotatable adapter rod (not shown in the figure) can be rotatably connected between the folding frame 104 and the support column 105. The vertical rotation of the adapter rod provides movement space for the folding frame 104. In this case, the support column 105 does not need to be telescopic, and the folding or unfolding of the folding frame 104 can still be ensured. The wheel 103 is connected to the corresponding connecting seat 106.

Furthermore, the riding part 101 and the loading part 102 are respectively provided with a base support assembly 28;

Specifically, to facilitate the folding of the folding frame 10 and ensure that the folding frame 10 will not fold itself due to impact during use, a bottom support assembly 28 is provided at the bottom of the riding section 101 and the loading section 102, respectively. This bottom support assembly 28 includes bottom support rods 281 and support seats 282. Since the riding section 101 is triangular, it has only three bottom support rods 281, which are rotatably connected to three connecting seats 106 of the riding section 101. The ends of the three bottom support rods 281 away from the connecting seats 106 are connected to the support seat 282. The support seat 282 can restrict the bottom support rods 281 from continuing to rotate downwards in a near-horizontal state. Since the loading section 102 is rectangular, it has four bottom support rods 281. The ends of the loading section 102 connected to the riding section 101 share a common connecting seat 106. One end of each of the four bottom support rods 281 is rotatably connected to its corresponding connecting seat 106, and the other end is connected to the support seat 282. 2. When folding is required, lifting the support base 282 causes the bottom support rod 281 to rotate. As the bottom support rod 281 rotates, one end connected to the support base 282 rises, while the other end is pulled towards the rising end. Therefore, the bottom support rod 281 pulls the corresponding support column 105 towards the support base 282. As the support column 105 moves, it compresses the folding bracket 104, causing it to fold until the support column 105... When moved to the extreme position, both the riding section 101 and the loading section 102 are folded together. When it is necessary to unfold, simply press the support base 282 of the riding section 101 and the loading section 102 to make the two support bases 282 move downward, so that the bottom support rod 281 changes from a near-vertical state back to a near-horizontal state. At this time, the bottom support rod 281 will push the support column 105 away from the support base 282, and at the same time, the support column 105 pulls the folding bracket 104 to unfold, so as to unfold the folding vehicle body 10.

Furthermore, in this embodiment, a clamping device 107 is provided on the support column 105 or the folding bracket 104 corresponding to the direction rod assembly 11. The clamping device 107 is used to restrict the direction rod assembly 11 to be in an upright state.

Specifically, since the steering rod assembly 11 can rotate vertically relative to the folding vehicle body 10, in order to prevent the steering rod assembly 11 from rotating vertically while riding, a clamping device 107 is provided on the support column 105 or the folding bracket 104. The position of the clamping device 107 depends on the position of the steering rod assembly 11. If the steering rod assembly 11 corresponds to one of the support columns 105, the clamping device 107 is located on the support column 105. When riding is required, the steering rod assembly 11 is placed in the clamping device 107, and the clamping device 107 is used to fix the steering rod assembly 11 to keep it in an upright state to ensure normal use.

Furthermore, in this embodiment, one of the wheels 103 is a steering wheel, the steering rod assembly 11 is located above the steering wheel and is fixedly connected to the steering wheel, and the bottom of the folding vehicle body 10 corresponding to the steering rod assembly 11 is provided with a foldable footrest 108;

Specifically, in this preferred embodiment, one wheel 103 located on the riding part 101 is set as a steering wheel, and the steering rod assembly 11 is located above the steering wheel and fixedly connected to the steering wheel. When the steering rod assembly 11 rotates laterally, it can drive the steering wheel to rotate synchronously. The driving direction of the folding vehicle body 10 is controlled by the steering wheel. At the same time, in order to make it easier for the user to have a place to step while riding, two foldable pedals 108 are provided at the bottom of the folding vehicle body 10 where the steering rod assembly 11 is located. When riding, the pedals 108 can be unfolded and the feet can step on the pedals 108 to improve riding comfort.

It should be noted that the drive wheel can be determined according to the usage requirements. The drive wheel can be one wheel 103 under the riding part 101 or two wheels 103 under the loading part 102. A single drive wheel has a small driving force and a lower load capacity than a dual drive wheel, but it is cheaper than a dual drive wheel.

Furthermore, in this embodiment, the steering rod assembly 11 includes: a telescopic rod 111 and a steering handle 112. The steering handle 112 is fixedly connected to the inner rod of the telescopic rod 111. The steering handle 112 is provided with a speed control device 113 and a braking device 114 for controlling the driving speed.

Specifically, the telescopic rod 111 has an inner rod and an outer rod. The inner rod can extend and retract within the outer rod. The handlebar 112 is fixedly connected to the top of the inner rod. The outer rod is rotatably connected to the connecting seat 106 of the riding part 101, which connects to the wheel 103. The outer rod can rotate laterally and vertically relative to the connecting seat 106. Lateral rotation is used to control the steering wheel, and vertical rotation is used to change the usage state of the handlebar. The handlebar 112 is also provided with a speed control device 113 for controlling the driving speed. The speed control device 113 can be in the form of a paddle or a rotary handle. At the same time, the handlebar 112 is also provided with a braking device 114. The braking device 114 can also be in the form of a paddle or a lever. The paddle is an electronic brake, and the lever is a mechanical brake.

Furthermore, in this embodiment, the seat assembly 20 includes: a rotating seat 21 and two seat support rods 23. The rotating seat 21 has two rotating parts 22 that can rotate relative to each other. The rotating seat 21 is rotatably disposed on the top of one of the supporting columns 105. One end of each of the two seat support rods 23 is rotatably connected to the rotating seat 21. The seat support rods 23 can rotate vertically relative to the rotating seat 21. The end of the seat support rod 23 away from the rotating seat 21 is engaged with the top of the corresponding supporting column 105. Support members 25 are straddling the two seat support rods 23 and are detachably connected to the seat support rods 23.

Specifically, the rotating seat 21 has two mutually rotatable rotating parts 22. The rotating seat 21 is rotatably mounted on the top of the support column connecting the wheel 103 to the riding part 101. Seat support rods 23 are rotatably connected to the two rotating parts 22 respectively, and the seat support rods 23 can rotate vertically relative to the rotating parts 22. In the riding part 101, two support columns 105 adjacent to the support column 105 connecting the wheel 103 are respectively provided with a retaining seat 24. The end of the seat support rod 23 away from the rotating part 22 engages with the retaining seat 24. A support member 25 spans between the two seat support rods 23 and is detachably connected to the two seat support rods 23. When riding is required... The seat support rod 23 is engaged with the corresponding bracket 24 on the support column 105, and then the support member 25 is placed on top. At this time, the support member 25 can be used for seating under the support of the seat support rod 23. When folding is required, the seat support rod 23 is lifted to release the engagement between the seat support rod 23 and the support column 105. Then, the seat support rod 21 is rotated laterally. At this time, after losing the support of the folding vehicle body 10, the seat support rod 23 rests on the top of the folding vehicle body 10 under gravity. Then, the rotating part 22 is rotated laterally to make the seat support rod 23 leave the range of the folding vehicle body 10 and hang down on both sides of the support column 105 under gravity to avoid affecting the folding of the folding vehicle body 10.

Furthermore, in this embodiment, the folding vehicle body 10 is also provided with a controller 26 and a power supply 27 electrically connected to the controller 26, the drive wheel is electrically connected to the controller 26, and the steering rod assembly 11 is electrically connected to the controller 26 for operating the operation of the drive wheel;

Specifically, the folding vehicle body 10 is also equipped with a controller 26 and a power supply 27. The power supply 27 is used to provide operating energy. The drive wheels are electrically connected to the controller 26, and the speed control device 113 and braking device 114 of the steering rod assembly 11 are both electrically connected to the controller 26. The power supply 27 provides operating energy to the controller 26 and the drive wheels.

Furthermore, in this embodiment, as shown in FIG7, the clamp device 107 includes: a clamp sleeve 30 and a limiting member 31; the clamp sleeve 30 is adapted to the steering rod assembly 11, and the limiting member 31 is movably disposed on the clamp sleeve 30, and the limiting member 31 is used to restrict the steering rod assembly 11 within the clamp sleeve 30;

Specifically, the clamp device 107 includes a clamp sleeve 30 and a limiting member 31. The clamp sleeve 30 is arc-shaped and is adapted to the steering rod assembly 11. When the steering rod assembly 11 is located inside the clamp sleeve 30, the steering rod assembly 11 can rotate horizontally within the clamp sleeve 30. The limiting member 31 is rotatably connected to one end of the clamp sleeve 30. When the steering rod assembly 11 is located inside the clamp sleeve 30, the cooperation between the limiting member 31 and the clamp sleeve 30 restricts the steering rod assembly 11 from disengaging from the clamp sleeve, thereby ensuring that the steering rod assembly 11 is always in a vertical position and will not tilt forward, thus improving riding safety.

Furthermore, the limiting member 31 includes: a hoop; one end of the hoop is rotatably connected to one end of the hoop sleeve 30, and the other end of the hoop sleeve 30 has a hoop groove 32 adapted to the hoop, and the hoop is engaged in the hoop groove 32;

Specifically, one end of the hoop is rotatably connected to the hoop sleeve 30, and the hoop can rotate along the vertical plane on the hoop sleeve 30. A hoop groove 32 is provided on the top side of the other end of the hoop sleeve 30. When the steering rod assembly 11 is located inside the hoop sleeve 30, the vertical rotation of the steering rod assembly 11 can be restricted by placing the hoop in the hoop groove 32 and the cooperation between the hoop groove 32 and the hoop, so as to ensure that the steering rod assembly 11 remains in an upright state when riding.

Furthermore, the hoop is a magnetic metal component, and the hoop groove 32 is also provided with a magnetic component, which magnetically engages with the hoop.

Specifically, to prevent the hoop from detaching from the groove 32 due to bouncing during operation, the hoop can be made of a magnetic metal part, and a magnetic part, such as a magnet, is installed in the groove 32. When the hoop is inserted into the groove 32, the magnetic attraction between the magnetic part and the hoop further improves the locking stability of the hoop.

Furthermore, in another embodiment of the clamp device 107, as shown in FIG8, the limiting member 31 includes: a clamp strip; the clamp strip is arc-shaped, one end of the clamp strip is rotatably connected to one end of the clamp sleeve 30, the other end of the clamp sleeve 30 is provided with a clamp groove 32 adapted to the clamp strip, and the top of the end of the clamp sleeve 30 with the clamp groove 32 is also provided with a spring pin 34.

Specifically, the hoop is arc-shaped and matches the outer curvature of the steering rod assembly. The hoop is rotatably connected to one end of the hoop sleeve 30. The other end of the hoop sleeve 30 has a hoop groove 32. A spring pin 34 is provided at the top of the end of the hoop sleeve 30 with the hoop groove 32. When the end of the hoop is located in the hoop groove 32, the spring pin 34 restricts the end of the hoop from disengaging from the hoop groove 32. The steering rod assembly 11 can rotate horizontally within the clamping device 107 so that the steering rod assembly 11 can control the rotation of the wheel.

Furthermore, a limiting pin 33 is provided at the end of the hoop bar away from the end rotatably connected to the hoop sleeve 30. The limiting pin 33 is used to restrict the hoop bar within the hoop groove 32.

Specifically, since the sleeve 30 is usually made of plastic, it has certain deformation characteristics. In order to prevent the sleeve 30 from expanding due to the force generated by the steering rod assembly 11 during use, a limiting pin 33 is provided at the end of the sleeve away from the rotatable connection with the sleeve 30. The limiting pin 33 abuts against the outer wall of the sleeve 30, thereby limiting the expansion of the sleeve 30 and preventing the sleeve from detaching from the sleeve 30.

In the second embodiment, the two wheels 103 at the same end are steering wheels, and a foldable steering assembly (not shown in the figure) is connected between the two steering wheels. The steering rod assembly 11 is located between the two steering wheels and is rotatably connected to the middle of the steering assembly. The steering rod assembly 11 drives the steering assembly to move, and the steering assembly drives the steering wheels to rotate.

The second embodiment differs from the first embodiment in that the position of the steering rod assembly 11 is different. In the first embodiment, the steering rod assembly 11 is located at the end of the riding part 101, while in the second embodiment, the steering rod assembly 11 is located at the end of the loading part 102. Specifically, in the second embodiment, the two wheels 103 located on the loading part 102 are rotatably connected to the support column 105 of the loading part 102 to serve as steering wheels. A steering assembly is connected between the two steering wheels. The steering assembly is foldable to adapt to the folding of the folding vehicle body 10. The steering rod assembly 11 is located between the two wheels 103 of the loading part 102, and the steering rod assembly 11 is rotatably connected to the middle of the steering assembly. When the steering rod assembly 11 rotates laterally, it drives the steering assembly to move left and right. The steering assembly pushes or pulls the corresponding wheel 103 to rotate, thereby controlling the steering. In this embodiment, the clamp device 107 is located in the middle of the folding bracket 104 of the loading part 102 away from the riding part 101.

Furthermore, in the second embodiment, a bushing (not shown in the figure) is rotatably connected to the bottom end of the direction rod assembly 11, and a support rod (not shown in the figure) is rotatably connected to both ends of the bushing, with the end of the support rod away from the bushing rotatably connected to the folding vehicle body 10.

Specifically, to support the direction rod assembly 11, a bushing is fitted at the bottom of the direction rod assembly 11. Support rods are rotatably connected to both sides of the bushing. The ends of the two support rods away from the bushing are rotatably connected to the corresponding connecting seats 106. When the folding vehicle body 10 is folded, the two support columns 105 connecting the support rods will move closer to each other, which will squeeze the two support rods and cause them to arch upwards, lifting the direction rod assembly 11. The two support rods move closer together to cooperate with the folding of the folding vehicle body 10 and avoid restricting the folding of the folding vehicle body 10. In order to facilitate the support rods to be squeezed and arched by the support columns 105 smoothly, the two support rods are arched at a predetermined included angle, so that they can be directly squeezed and lifted by the support columns 105 without additional intervention. At the same time, in order to achieve synchronous rotation of the two support rods, synchronous teeth are provided on the adjacent ends of the two support rods. The two synchronous teeth mesh with each other so that the two support rods rotate synchronously when rotating vertically, avoiding the situation of one being faster and the other slower.

Furthermore, in the second embodiment, two seat assemblies 20 are provided, each seat assembly 20 including: a rotating seat 21 and a seat support rod 23; the rotating seat 21 is rotatably disposed on the top of one of the support columns 105 at the same end as the direction rod assembly 11, one end of the seat support rod 23 is rotatably connected to the rotating seat 21, the seat support rod 23 can rotate vertically relative to the rotating seat 21, and the end of the seat support rod 23 away from the rotating seat 21 is engaged with the top of the corresponding support column 105; the two seat support rods 23 are straddled by a support member 25 and are detachably connected to the seat support rod 23;

Specifically, in the second embodiment, two seat assemblies 20 are provided, located on both sides of the loading section 102. Each seat assembly 20 includes a rotating seat 21, which is rotatably disposed on the top of the support column 105 connecting the wheel 103 to the loading section 102, and can rotate laterally relative to the support column 105. In the second embodiment, the rotating seat 21 itself is the rotating part. One end of the seat support rod 23 is rotatably connected to the rotating seat 21, and the seat support rod 23 can rotate vertically relative to the rotating seat 21, connecting to the riding section. Each of the two support columns 105 of the 101 and the loading section 102 is provided with a card seat 24 at its top. The other end of the seat support rod 23 is engaged with the card seat 24. By engaging, the seat support rod 23 can be removed from between the two support columns 105 when needed to avoid affecting the folding of the folding vehicle body 10. The support member 25 is straddling between the two seat support rods 23. With the support of the seat support rods 23, the support member 25 can support the user to sit on it. The support member 25 and the seat support rods 23 are also detachably connected.

Furthermore, in the second embodiment, the support member 25 is a rigid structural member or a flexible structural member;

Specifically, the support component 25 can be a rigid structural component, such as a sponge pad plus a wooden board, or a flexible structural component, such as a woven fabric plus a pull rope, depending on the usage requirements. When the woven fabric plus pull rope is used, the seat support rod 23 can be eliminated. The pull rope is connected to the corresponding support column 105, and the woven fabric in the middle can be pulled up to carry people.

In summary, this application, by arranging the riding part 101 into a triangle, makes the folding vehicle body 10 as a bullet shape. Without affecting the loading of the folding vehicle body 10, it changes the shape of the folding vehicle body 10, which is different from the existing technology, more novel, and lower in cost than the existing technology. At the same time, by setting the seat component 20 on the riding part 101, the folding vehicle body 10 realizes the passenger carrying function, which makes it easier for users to use and effectively improves the user experience of the folding vehicle body 10. In addition, the folding vehicle body 10 can also be properly folded and reduced in size, making it easy to carry.

This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, 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.

Claims (17)

A three-wheeled folding electric trailer capable of high capacity riding is characterized by comprising: a folding body, the folding body being a convergent type, the folding body having a connected riding section and a loading section, the riding section being triangular in shape, the loading section being rectangular in shape, the bottom of the folding body having at least three wheels, one of which or two wheels at the same end being rotatably connected to the folding body as steering wheels, and at least one of the wheels being a drive wheel, the folding body also having a rotatably mounted steering rod assembly, the steering rod assembly being connected to the steering wheels for controlling the steering of the steering wheels, and a seat assembly being detachably connected to the top of the riding section. According to claim 1, the high-capacity three-wheeled folding electric trailer is characterized in that the folding body includes: a plurality of folding brackets, the folding brackets being "X"-shaped and rotatable at the intersection, the plurality of folding brackets surrounding each other, two adjacent folding brackets being connected together by a support column, each support column having a connecting seat at its top and bottom, and the wheel being connected to the corresponding connecting seat. According to claim 1, the high-capacity three-wheeled folding electric trailer is characterized in that the steering rod assembly includes: a telescopic rod and a steering handle, the steering handle is fixedly connected to the inner rod of the telescopic rod, and the steering handle is provided with a speed control device and a braking device for controlling the driving speed. According to claim 2, the high-capacity three-wheeled folding electric trailer is characterized in that a clamping device is provided on the support column or the folding bracket corresponding to the steering rod assembly, and the clamping device is used to restrict the steering rod assembly to be in an upright state. According to claim 2, the three-wheeled folding electric trailer capable of high capacity is characterized in that one of the wheels is a steering wheel, the steering rod assembly is located above the steering wheel and fixedly connected to the steering wheel, and the bottom of the folding vehicle body corresponding to the steering rod assembly is provided with a foldable footrest. According to claim 2, the three-wheeled folding electric trailer capable of high capacity is characterized in that the two wheels at the same end are steering wheels, a foldable steering assembly is connected between the two steering wheels, the steering rod assembly is located between the two steering wheels and is rotatably connected to the center of the steering assembly, the steering rod assembly drives the steering assembly to move, and the steering assembly drives the steering wheels to rotate. According to claim 6, the high-capacity three-wheeled folding electric trailer is characterized in that a bushing is rotatably connected to the bottom end of the steering rod assembly, and support rods are rotatably connected to both ends of the bushing, with the end of the support rod away from the bushing rotatably connected to the folding vehicle body. According to claim 5, the high-capacity three-wheeled folding electric trailer is characterized in that the seat assembly includes: a rotating seat, two seat support rods, the rotating seat having two rotatable rotating parts, the rotating seat being rotatably disposed on the top of one of the supporting columns, one end of each of the two seat support rods being rotatably connected to the rotating seat, the seat support rods being vertically rotatable relative to the rotating seat, the end of the seat support rod away from the rotating seat being engaged with the top of the corresponding supporting column, and a support member being strung across the two seat support rods and detachably connected to the seat support rods. The three-wheeled folding electric trailer with a large riding capacity according to claim 6 is characterized in that the seat assembly is provided in two parts, each seat assembly including: a rotating seat and a seat support rod; the rotating seat is rotatably disposed on the top of one of the supporting columns at the same end as the steering rod assembly, one end of the seat support rod is rotatably connected to the rotating seat, the seat support rod can rotate vertically relative to the rotating seat, and the end of the seat support rod away from the rotating seat is engaged with the top of the corresponding supporting column; the two seat support rods are straddled by a support member and detachably connected to the seat support rod. The three-wheeled folding electric trailer capable of high capacity riding, as described in claim 8 or 9, is characterized in that the support member is a rigid structural member or a flexible structural member. According to claim 1, the high-capacity three-wheeled folding electric trailer is characterized in that the folding vehicle body is further provided with a controller and a power supply electrically connected to the controller, the drive wheel is electrically connected to the controller, and the steering rod assembly is electrically connected to the controller for operating the drive wheel. The three-wheeled folding electric trailer with a large riding capacity according to claim 2 is characterized in that the riding part and the loading part are respectively provided with a bottom support assembly. According to claim 4, the three-wheeled folding electric trailer with a large riding capacity is characterized in that the clamp device includes: a clamp sleeve and a limiting member; the clamp sleeve is adapted to the steering rod assembly, the limiting member is movably disposed on the clamp sleeve, and the limiting member is used to restrict the pull rod within the clamp sleeve. According to claim 13, the three-wheeled folding electric trailer with large riding capacity is characterized in that the limiting component includes: a hoop; the hoop is arc-shaped, one end of the hoop is rotatably connected to one end of the hoop sleeve, the other end of the hoop sleeve has a hoop groove adapted to the hoop, and the top of the end of the hoop sleeve with the hoop groove is also provided with a spring pin. The foldable seat of the foldable campervan according to claim 14 is characterized in that a limiting pin is provided at the end of the hoop away from the hoop sleeve that is rotatably connected to it, and the limiting pin is used to restrict the hoop within the hoop groove. According to claim 13, the three-wheeled folding electric trailer with large riding capacity is characterized in that the limiting member includes: a hoop; one end of the hoop is rotatably connected to one end of the hoop sleeve, and the other end of the hoop sleeve has a hoop groove adapted to the hoop, and the hoop is engaged in the hoop groove. The foldable seat of the foldable campervan according to claim 16 is characterized in that the hoop is a magnetic metal part, the hoop groove is further provided with a magnetic part, and the magnetic part is magnetically attracted to the hoop.