WO2025247148A1 - Rideable three-wheel collapsible electric scooter - Google Patents

Abstract

A rideable three-wheel collapsible electric scooter, comprising: a collapsible scooter body (10), which is a folding scooter body and is triangular, wherein at least three wheels (14) are provided at the bottom of the collapsible scooter body (10),;one wheel (14) or two wheels (14) on the same side are rotatably connected to the collapsible scooter body (10) as steering wheel(s); and at least one wheel (14) is a driving wheel. The collapsible scooter body (10) is further rotatably provided with a steering shaft assembly (20) which is connected to the steering wheel(s) for controlling the steering of the steering wheel(s). A seat assembly (30) is further detachably connected to the top of the collapsible scooter body (10). By means of configuring the collapsible scooter body to be triangular, compared with existing rectangular scooter bodies, the triangular collapsible scooter body is more creative and also has a riding function, such that a user can save more energy during use and has a better usage experience, and the collapsible scooter body has a small size, is more suitable for daily use, has a simpler structure, and has lower cost than a rectangular scooter body.

Description

A rideable three-wheeled folding electric trailer Technical Field

This invention relates to the field of electric trailer technology, and in particular to a rideable three-wheeled folding electric trailer.

Background Technology

Existing folding electric trailers only have electric assist functions. Although this can reduce the effort required by users to some extent, 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 design, which are bulky and heavy when folded, making them inconvenient to carry.

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

Summary of the Invention

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: to provide a rideable three-wheeled folding electric trailer, characterized in that it includes: a folding body, the folding body being a convergent type, the folding body being triangular in top view, the bottom of the folding body being provided with at least three wheels, one of which or two wheels on the same side being rotatably connected to the folding body as steering wheels, at least one of which is a drive wheel, the folding body also being rotatably provided with a steering rod assembly, the steering rod assembly being connected to the steering wheels for controlling the steering of the steering wheels, and the top of the folding body being detachably connected with a seat assembly.

In a preferred embodiment, the folding vehicle body includes: three support columns, a foldable bracket, at least one foldable bracket between each pair of adjacent support columns, the foldable bracket being movably connected to the support columns, and the foldable bracket and the support columns forming a triangular shape with an accommodating chamber; the wheel is located at the bottom of the corresponding support column.

In a preferred 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 a preferred 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 a preferred 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 a preferred embodiment, the two wheels on the same side 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 a preferred 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 a preferred embodiment, the seat assembly includes a support member located at the top of the support column and connected to the top of the support column.

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

In a preferred embodiment, 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.

In a preferred embodiment, the bottom of each of the three supporting columns is rotatably connected to a base bracket, and the ends of the three base brackets away from the supporting columns are connected to a support base.

In a preferred 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 steering rod assembly within the clamp sleeve.

In a preferred 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 a preferred 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 a preferred 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 a preferred 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.

In a preferred embodiment, the folding bracket is "X" shaped and can rotate at the intersection.

In a preferred embodiment, each of the support columns is provided with a connecting seat at the top and bottom, and the folding bracket connects two adjacent support columns together through the connecting seats.

In a preferred embodiment, the seat assembly further includes: a rotating seat and two seat support rods; the rotating seat has two rotatable rotating parts, the rotating seat is rotatably disposed on the top of one of the supporting columns, one end of each of the two seat support rods is rotatably connected to the rotating seat, the seat support rods are rotatable relative to the rotating seat, the end of the seat support rod away from the rotating seat is engaged with the top of the corresponding supporting column, and the support member straddles the two seat support rods and is detachably connected to the seat support rods.

The beneficial effects of this invention are: by setting the folding body in a triangular shape, which is different from the existing rectangular body, it is more creative and also has the function of riding. Users can save more energy when using it, and the user experience is better. It is compact in size and more suitable for daily use. Moreover, the structure is simple and the cost is lower than that of rectangular body, making it more competitive in the market.

Attached Figure Description

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is a schematic diagram of the folding vehicle body of the present invention;

Figure 3 is a schematic diagram of the direction rod assembly of the present invention;

Figure 4 is a structural schematic diagram of the seat assembly of the present invention;

Figure 5 is a structural schematic diagram of the second embodiment of the present invention;

Figure 6 is a diagram showing the folded state of the second embodiment of the present invention.

Figure 7 is a diagram showing the dragging state of the present invention;

Figure 8 is a diagram showing the folded state of the present invention;

Figure 9 is a schematic diagram of the clamp device of the present invention;

Figure 10 is a structural schematic diagram of another embodiment of the clamping device of the present invention;

Figure 11 is a structural schematic diagram of another embodiment of the seat assembly of the present invention.

In the picture:

10. Folding frame; 101. Power supply; 102. Controller; 11. Support column; 12. Folding bracket; 13. Connecting seat; 14. Wheel; 15. Clamping device; 151. Clamp sleeve; 152. Limiting component; 153. Clamp groove; 154. Spring pin; 155. Limiting pin; 16. Step bar; 17. Base bracket; 18. Bracket base;

20. Steering rod assembly; 21. Telescopic rod; 22. Steering handle; 23. Speed control device; 24. Braking device; 25. Steering assembly; 26. Bushing; 27. Support rod;

30. Seat assembly; 31. Rotating seat; 32. Rotating part; 33. Seat strut; 34. Support component.

Detailed Implementation

To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present 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 thorough understanding of the present invention. However, the present invention can be practiced 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 the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

In the description of the embodiments of the present invention, 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 devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, 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 the present invention, 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 the present invention.

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 invention, "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 cases: A existing alone, A and B existing simultaneously, and B existing 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 invention include a particular 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 invention is not limited to the specific embodiments disclosed below.

As shown in Figures 1-4, the present invention provides a rideable three-wheeled folding electric trailer (hereinafter referred to as electric trailer), comprising: a folding body 10, wherein the folding body 10 is a convergent body, the folding body 10 is triangular in top view, the bottom of the folding body 10 is provided with at least three wheels 14, one or two of the wheels 14 at the same end are rotatably connected to the folding body 10 as steering wheels, at least one of the wheels 14 is a drive wheel, the folding body 10 is also rotatably provided with a steering rod assembly 20, the steering rod assembly 20 is connected to the steering wheels and is used to control the steering of the steering wheels, and the top of the folding body 10 is detachably connected with a seat assembly 30;

Specifically, the folding vehicle body 10 is triangular in shape and has a convergent design, meaning that the folding of the vehicle body 10 is from the perimeter towards the center. This folding method minimizes the volume of the folded vehicle body 10, improving its portability. At least three wheels 14 are located at the bottom of the folding vehicle body 10, supporting it. One or two wheels on the same side of the three wheels 14 are directional wheels that can rotate laterally relative to the folding vehicle body 10, controlling its direction of movement. At least one of the three wheels 14 is a drive wheel, i.e., a wheel 14 with an internal hub motor, similar to the wheels of an electric scooter. A steering rod assembly 20 is also provided on the folding vehicle body 10. The steering rod assembly 20 is connected to the wheel 14, which serves as the steering wheel. The steering rod assembly 20 can rotate laterally on the folding vehicle body 10 to control the steering of the wheel 14 connected to it. The steering rod assembly 20 can also rotate vertically relative to the folding vehicle body 10, so that the steering rod assembly 20 can switch between an upright state and a tilted state to adapt to different usage needs. For example, the upright state is more suitable for use when riding, while the tilted state is more suitable for use when towing, as shown in Figure 7. A seat assembly 30 can also be detachably connected to the top of the folding vehicle body 10. The seat assembly 30 is used to support the user, so that the user can sit on the folding vehicle body 10 to ride, saving the user's leg strength and thus improving the user experience of the electric trailer.

Furthermore, the folding vehicle body 10 includes: three supporting columns 11 and a foldable folding bracket 12. At least one folding bracket 12 is provided between each pair of adjacent supporting columns 11. The folding bracket 12 is movably connected to the supporting columns 11. The folding bracket 12 and the supporting columns 11 form a triangular shape with a receiving chamber. The wheel 14 is located at the bottom of the corresponding supporting column 11.

Specifically, the three support columns 11 are arranged in a triangle, and at least one folding bracket 12 is provided between each pair of adjacent support columns 11. The number of folding brackets 12 depends on the required size. If it is necessary to increase the lateral volume of the folding vehicle body 10, two or more folding brackets 12 can be provided. The folding brackets 12 are movably connected to the support columns 11. The movable connection can be a rotating connection or a sliding connection, etc. A rotating connection means that the end of the folding bracket 12 is connected to the support column 11 through a pin, so that the folding bracket 12 can rotate relative to the support column 11. At this point, the support column 11 needs to be configured as a telescopic structure or an adapter rod needs to be added so that the folding bracket 12 can be folded. A sliding connection means that the bottom end of the folding bracket 12 has a sliding sleeve, which is fitted onto the support column 11 and can slide on it. The top end of the folding bracket 12 is rotatably connected to the support column 11. When folding, the end of the folding bracket 12 with the sliding sleeve slides on the support column 11. Since the folding bracket 12 can rise and fall relative to the support column 11, the support column 11 does not need to be configured as a telescopic structure for the folding bracket 12 to fold. Each support column 11 has a wheel 14 at its bottom. The wheel 14, acting as a drive wheel, is fixedly connected to the support column 11 and cannot rotate laterally; the wheel 14, acting as a directional wheel, is rotatably connected to the bottom of the support column 11 and can rotate laterally.

Furthermore, in this embodiment, the folding bracket 12 is "X" shaped and can rotate at the intersection;

Specifically, in this application, the folding bracket 12 is preferably X-shaped, and the folding bracket 12 can rotate at the intersection. The end of the folding bracket 12 is movably connected to the support column 11. When a rotating connection is used, the end of the folding bracket 12 and the support column 11 are connected by a pin. The support column 11 can be selected as a telescopic structure or a non-telescopic structure as needed. In the non-telescopic structure, a transition rod can be provided between the folding bracket 12 and the support column 11. The transition rod can rotate relative to the folding bracket 12 and the support column 11. When the folding bracket 12 is folded, the transition rod stands up, increasing the height of the support column 11 to achieve the folding of the folding bracket 12. This structure achieves the same technical effect as the telescopic support column 11. In this embodiment, when folding, the two ends of the folding bracket 12 move closer together laterally, and the support column 11 extends, increasing the height of the support column 11 so that the folding bracket 12 can be folded. The moving closer of the folding bracket 12 causes the connected support column 11 to move closer together as well.

Furthermore, each of the supporting columns 11 is provided with a connecting seat 13 at its top and bottom, and the folding bracket 12 connects two adjacent supporting columns 11 together through the connecting seat 13;

Specifically, in order to improve the structural stability of the folding vehicle body 10 and increase its load capacity, in this embodiment, a connecting seat 13 is fixedly provided at both the top and bottom of the supporting column 11. The end of the folding bracket 12 is connected to the supporting column 11 through the connecting seat 13. To ensure the stability and durability of the supporting column 11, the connecting seat 13 can be made of materials such as plastic, stainless steel, aluminum alloy, etc., as required.

Furthermore, the bottom of each of the three supporting columns 11 is rotatably connected to a base bracket 17, and the end of each of the three base brackets 17 away from the supporting column 11 is connected to a bracket base 18.

Specifically, since the folding bracket 12 is foldable and does not have a limiting structure, it may fold on its own due to impact during use. To avoid this, bottom brackets 17 are rotatably connected to the bottom of the three support columns 11 via connecting seats 13. The ends of the three bottom brackets 17 away from the support columns 11 are rotatably connected to the bracket base 18. In the unfolded state, the bottom brackets 17 and the bracket base 18 are relatively flush. At this time, the cooperation between the bottom brackets 17 and the bracket base 18 can hold the support columns 11, preventing the folding bracket 12 from folding on its own when impacted. When folding, simply lift the bracket base 18 upwards, causing the bottom brackets 17 to rotate vertically. The bottom brackets 17 will then pull the three support columns 11 together, squeezing the folding bracket 12 to fold until it is completely folded, as shown in Figure 8.

Furthermore, in this embodiment, the steering rod assembly 20 includes: a telescopic rod 21 and a steering handle 22. The steering handle 22 is fixedly connected to the inner rod of the telescopic rod 21. The steering handle 22 is provided with a speed control device 23 and a braking device 24 for controlling the driving speed.

Specifically, the telescopic rod 21 has an inner rod and an outer rod. The inner rod can extend and retract within the outer rod. The steering handle 22 is fixedly connected to the top of the inner rod. The outer rod is rotatably connected to the connecting seat 13 at the bottom of one of the support columns 11. The outer rod can rotate horizontally and vertically relative to the connecting seat 13. Horizontal rotation is used to control the steering wheel, and vertical rotation is used to change the usage state of the steering rod. The steering handle 22 is also equipped with a speed control device 23 for controlling the driving speed. The speed control device 23 can be in the form of a paddle or a rotary handle. At the same time, the steering handle 22 is also equipped with a braking device 24. The braking device 24 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, a clamping device 15 is provided on the support column 11 or the folding bracket 12 corresponding to the direction rod assembly 20. The clamping device 15 is used to restrict the direction rod assembly 20 to be in an upright state.

Specifically, since the steering rod assembly 20 can rotate vertically relative to the folding vehicle body 10, a clamping device 15 is provided on the support column 11 or the folding bracket 12 to prevent the steering rod assembly 20 from rotating during riding. The position of the clamping device 15 depends on the position of the steering rod assembly 20. If the steering rod assembly 20 corresponds to one of the support columns 11, the clamping device 15 is located on the support column 11. When riding is required, the steering rod assembly 20 is placed in the clamping device 15, and the clamping device 15 is used to fix the steering rod assembly 20 in an upright state to ensure normal use.

Furthermore, as shown in Figure 9, the clamp device 15 includes: a clamp sleeve 151 and a limiting member 152; the clamp sleeve 151 is adapted to the steering rod assembly 20, and the limiting member 152 is movably disposed on the clamp sleeve 151, and the limiting member 152 is used to restrict the steering rod assembly 20 within the clamp sleeve 151.

Specifically, the clamp device 15 includes a clamp sleeve 151 and a limiting member 152. The clamp sleeve 151 is arc-shaped and is adapted to the steering rod assembly 20. When the steering rod assembly 20 is located inside the clamp sleeve 151, the steering rod assembly 20 can rotate horizontally within the clamp sleeve 151. The limiting member 152 is rotatably connected to one end of the clamp sleeve 151. When the steering rod assembly 20 is located inside the clamp sleeve 151, the limiting member 152 can cooperate with the clamp sleeve 151 to prevent the steering rod assembly 20 from disengaging from the clamp sleeve 151, thereby ensuring that the steering rod assembly 20 is always vertical and will not tilt forward, thus improving riding safety.

Furthermore, the limiting member 152 includes: a hoop; one end of the hoop is rotatably connected to one end of the hoop sleeve 151, and the other end of the hoop sleeve 151 has a hoop groove 153 adapted to the hoop, and the hoop is engaged in the hoop groove 153.

Specifically, one end of the stirrup is rotatably connected to the sleeve 151, allowing the stirrup to rotate along a vertical plane on the sleeve 151. A groove 153 is provided on the top side of the other end of the sleeve 151. When the steering rod assembly 20 is located within the sleeve 151, the stirrup can be placed within the groove 153. The engagement between the groove 153 and the stirrup restricts the vertical rotation of the steering rod assembly 20, ensuring that the steering rod assembly 20 remains in an upright position during riding.

Furthermore, the hoop is a magnetic metal component, and the hoop groove 153 is also provided with a magnetic component, which magnetically engages with the hoop.

Specifically, to prevent the hoop from detaching from the groove 153 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 153. When the hoop is inserted into the groove 153, 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 15, as shown in FIG10, the limiting member 152 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 151, and the other end of the clamp sleeve 151 has a clamp groove 153 adapted to the clamp strip on its front side, and the top of the end of the clamp sleeve 151 with the clamp groove 153 is also provided with a spring pin 154;

Specifically, the hoop is arc-shaped and matches the outer arc of the steering rod assembly 20. The hoop is rotatably connected to one end of the hoop sleeve 151. The other end of the hoop sleeve 151 has a hoop groove 153. A spring pin 154 is provided at the top of the end of the hoop sleeve 151 with the hoop groove 153. When the end of the hoop is located in the hoop groove 153, the spring pin 154 restricts the end of the hoop from leaving the hoop groove 153, and the steering rod assembly 20 can rotate horizontally within the clamping device 15 so that the steering rod assembly 20 can control the rotation of the wheel 14.

Furthermore, a limiting pin 155 is provided at the end of the hoop away from the hoop sleeve 151 that is rotatably connected to it. The limiting pin 155 is used to restrict the hoop within the hoop groove 153.

Specifically, since the sleeve 153 is usually made of plastic, it has certain deformation characteristics. In order to prevent the sleeve 151 from expanding due to the force generated by the steering rod assembly 20 during use, a limiting pin 155 is provided at the end of the sleeve away from the rotatable connection with the sleeve 151. The limiting pin 155 abuts against the outer wall of the sleeve 151, thereby limiting the expansion of the sleeve 151 and preventing the sleeve from detaching from the sleeve 151.

Furthermore, in this embodiment, one of the wheels 14 is a steering wheel, the steering rod assembly 20 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 20 is provided with a foldable foot bar 16;

Specifically, in this preferred embodiment, one of the wheels 14 is set as a steering wheel, and the steering rod assembly 20 is located above the steering wheel and fixedly connected to it. When the steering rod assembly 20 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 this way, in order to make it easier for the user to have a place to step while riding, two foldable pedals 16 are provided at the bottom of the folding vehicle body 10 where the steering rod assembly 20 is located. When riding, the pedals 16 can be unfolded and the feet can step on the pedals 16 to improve riding comfort.

In the second embodiment, the two wheels 14 on the same side are steering wheels, and a foldable steering assembly 25 is connected between the two steering wheels. The steering rod assembly 20 is located between the two steering wheels and is rotatably connected to the middle of the steering assembly 25. The steering rod assembly 20 drives the steering assembly 25 to move, and the steering assembly 25 drives the steering wheels to rotate.

Specifically, in the second embodiment, as shown in Figures 5-6, the two wheels 14 on the same side are set as steering wheels. In this way, the steering rod assembly 20 is located between the two steering wheels, and a steering assembly 25 is connected between the two steering wheels. The steering assembly 25 is composed of multiple links that are rotatably connected to each other. The steering assembly 25 can be folded by arching upwards to adapt to the folding of the folding vehicle body 10. The steering rod assembly 20 and the steering assembly 25 are rotatably connected in the middle. When the steering rod assembly 20 rotates laterally, it can drive the steering assembly 25 to move in the direction of one of the steering wheels, thereby pushing that steering wheel to rotate. The other steering wheel is pulled and rotated by the steering assembly 25, so that the steering rod assembly 20 can control the rotation of the two steering wheels at the same time. In this way, the clamp device 15 is set at the intersection of the folding bracket 12.

Furthermore, a bushing 26 is rotatably connected to the bottom end of the steering rod assembly 20, and a support rod 27 is rotatably connected to both ends of the bushing 26. The end of the support rod 27 away from the bushing 26 is rotatably connected to the folding vehicle body 10.

Specifically, in the second embodiment, a bushing 26 is fitted at the bottom of the steering rod assembly 20 to support the steering rod assembly 20. Support rods 27 are rotatably connected to both sides of the bushing 26. The ends of the two support rods 27 away from the bushing 26 are rotatably connected to corresponding connecting seats 13. When the folding vehicle body 10 is folded, the two supporting columns 11 connecting the support rods 27 will move closer together, thus squeezing the two support rods 27 and causing them to arch upwards, lifting the steering rod assembly 20. The two support rods 27 then move closer together to achieve the desired fit. The folding mechanism of the folding vehicle body 10 avoids restricting its folding. To facilitate the smooth arching of the support rods 27 by the support columns 11, the two support rods 27 are arched at a predetermined angle, so that they can be directly pressed and lifted by the support columns 11 without additional intervention. At the same time, to achieve synchronous rotation of the two support rods 27, synchronous teeth are provided on the adjacent ends of the two support rods 27. The two synchronous teeth mesh with each other, so that the two support rods 27 rotate in sync, avoiding a situation where one is faster than the other.

Furthermore, the seat assembly 30 includes a support member 34, which is located at the top of the support column 11 and connected to the top of the support column 11.

Specifically, the support member 34 is set on the top of the folding vehicle body 10. The support member 34 is detachably connected to the top of the corresponding support column 11. The support member 34 supports a person to sit on it through the support base provided by the support column 11, thereby enabling riding. It can be detached when not needed.

Furthermore, in this embodiment, the seat assembly 30 further includes: a rotating seat 31, two seat support rods 33, the rotating seat 31 having two rotating parts 32 that can rotate relative to each other, the rotating seat 31 being rotatably disposed on the top of one of the supporting columns 11, one end of each of the two seat support rods 33 being rotatably connected to the rotating seat 31, the seat support rods 33 being able to rotate vertically relative to the rotating seat 31, the end of the seat support rod 33 away from the rotating seat 31 being engaged with the top of the corresponding supporting column 11, and the support member 34 straddling the two seat support rods 33 and being detachably connected to the seat support rods 33;

Specifically, the rotating seat 31 has two rotatable rotating parts 32. The rotating seat 31 is rotatably mounted on the top of one of the support columns. Seat support rods 33 are rotatably connected to the two rotating parts 32 respectively. The seat support rods 33 can rotate vertically relative to the rotating parts 32. A retaining seat is provided on the top of the other two support columns 11. The end of the seat support rod 33 away from the rotating part 32 engages with the retaining seat. A support member 34 spans between the two seat support rods 33 and is detachably connected to the two seat support rods 33. When riding is required, the seat support rods 33 are connected to the support member 34. The corresponding support column 11 is engaged with the card seat, and then the support member 34 is placed on it. At this time, the support member 34 can be used for sitting under the support of the seat support rod 33. When it needs to be folded, lift the seat support rod 33 to release the engagement between the seat support rod 33 and the support column 11. Rotate the seat 31 support rod laterally. At this time, after losing the support of the folding body 10, the seat support rod 33 rests on the top of the folding body 10 under gravity. Then, rotate the rotating part 32 laterally to make the seat support rod 33 leave the range of the folding body 10 and hang down on both sides of the support column 11 under gravity.

It should be noted that the seat support bar 33 can distribute the force acting on the folding vehicle body 10 when the user sits on the support 34, and can also limit the lateral deformation of the folding vehicle body 10, so as to improve the stability of the folding vehicle body 10.

Furthermore, in this embodiment, the support member 34 is a rigid structural member or a flexible structural member;

Specifically, the support component 34 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 can be eliminated. The pull rope is connected to the corresponding support column, and the woven fabric in the middle can be pulled up to carry people.

Furthermore, in this embodiment, the folding vehicle body 10 is also provided with a controller 102 and a power supply 101 electrically connected to the controller. The drive wheel is electrically connected to the controller 102, and the steering rod assembly 20 is electrically connected to the controller 102 for operating the operation of the drive wheel.

Specifically, the folding vehicle body 10 is also equipped with a controller 102 and a power supply 101. The power supply 101 is used to provide operating energy. The drive wheels are electrically connected to the controller 102. The speed control device 23 and the braking device 24 of the steering rod assembly 20 are both electrically connected to the controller 102. The power supply 101 provides operating energy to the controller 102 and the drive wheels.

In summary, this application features a triangular folding frame, which differs from existing rectangular frames, making it more innovative. It also incorporates riding functionality, allowing users to conserve energy and providing a better user experience. Its compact size makes it more suitable for daily use, and its simple structure results in lower costs compared to rectangular frames, making it more competitive in the market.

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

Claims (19)

A rideable three-wheeled folding electric trailer, characterized in that it comprises: a folding body, the folding body being a convergent type that can be folded from the periphery towards the center, the folding body being triangular in top view, the bottom of the folding body having at least three wheels, one or two of the wheels on the same side being rotatably connected to the folding body as steering wheels, at least one of the wheels being a drive wheel, the folding body also being rotatably provided with a 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 folding body. The rideable three-wheeled folding electric trailer according to claim 1 is characterized in that the folding vehicle body includes: three support columns, a foldable bracket, at least one foldable bracket between each pair of adjacent support columns, the foldable bracket being movably connected to the support columns, and the foldable bracket and the support columns forming a triangular shape with an accommodating chamber; the wheels are located at the bottom of the corresponding support columns. The rideable three-wheeled folding electric trailer according to claim 1 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. The rideable three-wheeled folding electric trailer according to claim 2 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. The rideable three-wheeled folding electric trailer according to claim 1 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 1, the rideable three-wheeled folding electric trailer is characterized in that the two wheels on the same side 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. The rideable three-wheeled folding electric trailer according to claim 6 is characterized in that a bushing is rotatably connected to the bottom end of the steering rod assembly, and a support rod 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. The rideable three-wheeled folding electric trailer according to claim 2, wherein the seat assembly comprises: a support member located at the top of the support column and connected to the top of the support column. The rideable three-wheeled folding electric trailer according to claim 8 is characterized in that the support member is a rigid structural member or a flexible structural member. The rideable three-wheeled folding electric trailer according to claim 1 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 operation of the drive wheel. The rideable three-wheeled folding electric trailer according to claim 2 is characterized in that the bottom of the three supporting columns is rotatably connected to a base bracket, and the end of the three base brackets away from the supporting columns is connected to a bracket seat. The rideable three-wheeled folding electric trailer according to claim 4 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 steering rod assembly within the clamp sleeve. The rideable three-wheeled folding electric trailer according to claim 12 is characterized in that 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, and the other end of the hoop sleeve has a hoop groove adapted to the hoop. The rideable three-wheeled folding electric trailer according to claim 13 is characterized in that a spring catch pin is provided at the top of one end of the hoop where the hoop groove is provided, and a limiting pin is provided at the end of the hoop away from the hoop that is rotatably connected to the hoop, the limiting pin being used to restrict the hoop within the hoop groove. The rideable three-wheeled folding electric trailer according to claim 12 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 rideable three-wheeled folding electric trailer according to claim 15 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. The rideable three-wheeled folding electric trailer according to claim 2 is characterized in that the folding bracket is "X" shaped and can rotate at the intersection. The rideable three-wheeled folding electric trailer according to claim 2 or 17 is characterized in that each of the supporting columns is provided with a connecting seat at the top and bottom, and the folding bracket connects two adjacent supporting columns together through the connecting seat. The rideable three-wheeled folding electric trailer according to claim 8 is characterized in that the seat assembly further includes: a rotating seat and two seat support rods; the rotating seat has two rotatable rotating parts, the rotating seat is rotatably disposed on the top of one of the supporting columns, one end of each of the two seat support rods is rotatably connected to the rotating seat, the seat support rods are rotatably rotatable relative to the rotating seat, the end of the seat support rod away from the rotating seat is engaged with the top of the corresponding supporting column, and the support member straddles the two seat support rods and is detachably connected to the seat support rods.