New passenger-carrying folding electric trailer

JP3256949UActive Publication Date: 2026-08-07深せん市雲睿物聯科技有限公司
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
深せん市雲睿物聯科技有限公司
Filing Date
2024-07-16
Publication Date
2026-08-07

AI Technical Summary

Benefits of technology

【0022】 本考案の有益な効果は、以下の通りである。折り畳み車体の前端の頂部に座席装置を設けることによって、人座り機能を実現し、電動トレーラーの使用をより省力化する。また、方向ロッドコンポーネントを折り畳み車体に摺動接続することによって、方向ロッドコンポーネントが伸びだすことができ、座席装置の支持受力点と第1車輪支持点との間の距離を増加させ、人搭載運転の安定性を向上させ、安全性能を向上させる。且つ折り畳み車体の前端にペダルを設けることによって、足置き及び立ち運転を容易にし、電動トレーラーの使用多様性を増加させ、且つ電動トレーラーは、折り畳み収納が可能であり、携帯の利便性を向上させる。

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Abstract

This application discloses a new type of foldable electric trailer for carrying passengers, which includes a foldable body, a seating device provided at the top of the front end of the foldable body, a directional rod component connected to the bottom of the front end of the foldable body, at least one first wheel connected to the directional rod component, at least two second wheels provided at the end of the foldable body away from the directional rod component, and a power supply and controller for power supply further provided on the foldable body. By adopting the above design and providing a seating device at the top of the front end of the foldable body, a passenger seating function is realized, making the use of the electric trailer more labor-saving. Furthermore, by slidingly connecting the directional rod component to the foldable body, the directional rod component can extend, increasing the distance between the support point of the seating device and the support point of the first wheel, improving the stability of passenger-carrying operation and enhancing safety performance. Furthermore, by providing pedals at the front of the folding body, it facilitates foot placement and standing driving, increasing the versatility of use for the electric trailer, and the electric trailer can be folded and stored, improving portability.
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Description

Technical Field

[0001] The present invention relates to the technical field of folding trailers, and particularly to a new type of foldable electric trailer for carrying people.

Background Art

[0002] A folding trailer is a load-carrying vehicle that can be folded and towed. Its use is simple, it can carry loads, facilitate storage, save time and effort, and is widely applied when transporting loads. Currently, it is often used for outdoor activities and short-distance transportation.

[0003] Conventional trailers need to be towed manually, which takes time and effort. Especially when loading goods and going uphill, it is even more inconvenient. For this reason, in the prior art, by installing power wheels and a control device on the vehicle body, the electric assist effect during towing is realized, and the patent number CN202220922980.0 (assist trailer) is designed to improve the labor-saving property and convenience during the use of the trailer. However, such a method still has drawbacks. Although it can save some labor, its use requires a person to tow in front. This method can only reduce the force exerted by the user to tow the trailer. Since this trailer is structurally limited and cannot carry people, the user has to move on foot, which easily causes fatigue and is likely to affect the user experience.

[0004] Therefore, in order to overcome the deficiencies of the above-mentioned one or more prior arts, it is necessary to design a new type of foldable electric trailer for carrying people.

Summary of the Invention

Means for Solving the Problems

[0005] The technical solution employed by this invention to achieve the above technical objective is as follows: A new type of passenger-carrying folding electric trailer, comprising a folding body, the folding body being folded in half from the front-to-back direction for storage, a seating device provided at the top of the front end of the folding body, a directional rod component connected to the bottom of the front end of the folding body, at least one first wheel connected to the directional rod component, at least two second wheels provided at the end of the folding body away from the directional rod component, the folding body further comprising a power supply for supplying power to the first and / or second wheels and a controller for controlling the operation of the first and / or second wheels. The folding vehicle body includes a first rack and a second rack, one end of the first rack being connected to one end of the second rack, each side of the first rack being provided with a bracket component, and each end of the bracket component on each side being connected with a support component, and when the first rack and the second rack are folded and stored relative to each other, the bracket components on both sides can be driven to fold simultaneously. .

[0006] In one preferred embodiment, retractable inner rods are slidably provided on both sides of one end of the first rack, and the retractable inner rods can extend out of the first rack, thereby moving the directional rod component away from the first rack.

[0007] In one preferred embodiment, the directional rod component is a directional cross rod. , and including directional rods, The first wheel is provided below the directional cross rod, a steering rod is drilled in the middle of the directional cross rod, and the steering rod is capable of horizontal rotation relative to the directional cross rod, The bottom of the steering rod is connected to the first wheel, and the directional rod steers the first wheel by the steering rod.

[0008] In one preferred embodiment, the directional rod component further includes a sleeve rod, One end of the sleeve rod is rotatably connected to the top of the steering rod, the directional rod is slidably mounted within the sleeve rod, and the directional cross rod and the telescopic inner rod are rotatably connected.

[0009] In one preferred embodiment, a support frame is connected between the two support components at the same ends of the two bracket components, and horizontal adapter rods are connected to the tops of both ends of the bracket components on each side, and the tops of both ends of the bracket components are connected to the support components via the adapter rods.

[0010] In one preferred embodiment, there are two first wheels, each of which is located at both ends of the directional cross rod, and the steering rod is direction A directional link is movably connected to the end away from the rod, and both ends of the directional link are rotatably connected to the two first wheels, one at a time.

[0011] In one preferred embodiment, two of the support components near the directional rod component are provided with vertical first sliding grooves at their bottom ends, a pedal is provided between the two first sliding grooves, and first sliding shafts are provided on both sides of the bottom end of the pedal, the bottom end of the pedal is slidably connected to the first sliding grooves via the first sliding shafts.

[0012] In one preferred embodiment, at least one folding limit pin is provided within the bottom end of the bottom surface of the pedal to restrict the translation of the directional rod component when the pedal is folded, at least one pinhole is provided on the top surface of the directional cross rod to fit the folding limit pin, and a relief hole is provided in the middle of the tip of the pedal to fit the steering rod.

[0013] In one preferred embodiment, at least one deployment limit pin is provided within the tip of the bottom surface of the pedal to restrict the translation of the directional rod component when the pedal is deployed, and the deployment limit pin fits into the pin hole.

[0014] In one preferred embodiment, spaced steering connection lugs are provided at the top of the steering rod, an insertion hole is provided between the two steering connection lugs, a boss is provided at the bottom end of the sleeve rod, the boss is inserted between the two steering connection lugs and rotatably connected via a pivot shaft, a limiting member is movably provided inside the bottom end of the sleeve rod, and when the directional rod presses against the limiting member, one end of the limiting member protrudes from the boss and is inserted into the insertion hole. , restricting the rotation of the sleeve rod relative to the steering rod. .

[0015] In one preferred embodiment, a handle ring is provided at the top of the directional rod, folding grooves are provided on both sides of the handle ring, a gripping rod is rotatably connected to the same end of the two folding grooves, one of the gripping rods is electrically connected to the controller and used to control the travel speed of the first wheel and / or the second wheel.

[0016] In one preferred embodiment, the side walls of the directional rod and the sleeve rod are provided with corresponding limit holes, and a limit locking pin is provided inside the directional rod, the limit locking pin fits into the limit hole, and a locking pin button is provided inside the bottom end of the handle ring, the locking pin button drives the limit locking pin to extend or retract. do .

[0017] In one preferred embodiment, the directional cross rod is further provided with a brake device, which is connected to the first wheel.

[0018] In one preferred embodiment, a limiting sleeve is fitted over each of the rotatable connection points between the telescopic inner rod and the directional cross rod, and a sleeve reset spring is provided at the end of the limiting sleeve facing the directional cross rod, and the limiting sleeve is located at the connection point between the telescopic inner rod and the directional cross rod under the force acting of the sleeve reset spring.

[0019] In one preferred embodiment, the seat device is made of a rigid material, and both ends of the seat device are rotatably connected to both sides of the top of the front end of the folding vehicle body, respectively. The seat device is Folding bicycle capable of reversing forward or reversing backward with respect to the

[0020] In one preferred embodiment, the seat device is made of a flexible material and is provided inside the top of the front end of the folding vehicle body. Support rods connected to the folding vehicle body are provided on the front side and / or the rear side of the seat device.

[0021] The end of the telescopic inner rod that is away from the second rack is rotatably connected to the directional rod component.

Advantages of the Invention

[0022] The beneficial effects of the present invention are as follows. By providing a seat device at the top of the front end of the folding vehicle body, a seating function is realized, and the use of the electric trailer is made more labor-saving. Also, by slidably connecting the direction rod component to the folding vehicle body, the direction rod component can extend, increasing the distance between the support force receiving point of the seat device and the first wheel support point, improving the stability of the manned driving and enhancing the safety performance. Moreover, by providing pedals at the front end of the folding vehicle body, it facilitates footrest and standing driving, increases the diversity of the use of the electric trailer, and the electric trailer can be folded and stored, improving the convenience of portability.

Brief Description of the Drawings

[0023] [Figure 1] It is a schematic structural view of the present invention. [Figure 2] It is an exploded view of the folding vehicle body of the present invention. [Figure 3] It is a schematic structural view of the pedal of the present invention. [Figure 4] It is a schematic structural view of the direction rod component of the present invention. [Figure 5] It is a schematic structural view of the direction rod of the present invention. [Figure 6] It is a cross-sectional view of the limiting member of the present invention. [Figure 7] This is diagram I showing the usage state of the drug according to the present invention. [Figure 8] This is diagram II showing the usage state of the drug according to the present invention. [Figure 9] This is a diagram showing the folded state of the present invention. [Figure 10] This is a circuit diagram illustrating the principle of the controller of this invention. [Figure 11] This is an electrical connection block diagram of the present invention. [Modes for carrying out the invention]

[0024] To make the above-mentioned objectives, features, and advantages of the present invention clearer and easier to understand, specific embodiments of the present invention will be described in detail below, accompanied by drawings. In the following description, many specific details will be given in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention; therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In describing embodiments of the present invention, unless otherwise explicitly stated or limited, the terms “connection” and “attachment” should be interpreted broadly. For example, “connection” may be detachable, non-detachable, direct, or indirectly connected via an intermediate medium. Similarly, “communication” may be direct or indirectly connected via an intermediate medium. Here, “fixed” means connected to each other and the relative positional relationship after connection does not change. Directional terms used in embodiments of the present invention, such as “inside,” “outside,” “top,” and “bottom,” simply refer to the orientation in the drawings. Therefore, the directional terms used are intended to better and more clearly describe and understand embodiments of the present invention, and do not suggest or imply that the indicated device or element has a specific orientation or must be configured and operated in a specific orientation, nor should they be interpreted as limitations to embodiments of the present invention.

[0026] In the embodiments of this invention, the terms "first" and "second" are for descriptive purposes only and should not be interpreted as suggesting relative importance or implicitly indicating the number of technical features shown. Therefore, features limited by "first" and "second" may include one or more such features, explicitly or implicitly.

[0027] In the embodiments of this invention, "and / or" merely describes the relationship between the related objects. 3 It can represent three relationships. For example, A and / or B means three cases: A existing alone, A and B existing together, or B existing alone. Also, the letter " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship.

[0028] Any reference in this specification to "one embodiment" or "some embodiments" means that one or more embodiments of the present invention include certain features, structures, or properties described in relation to that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet another embodiment" appearing in different parts of this specification do not necessarily refer to the same embodiment, and unless otherwise emphasized, mean "one or more embodiments, but not all embodiments." The terms "includes," "equipment," "having," and variations thereof mean "includes, but not limited to," unless otherwise emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] As shown in Figures 1-11, the present invention provides a new type of passenger-carrying folding electric trailer, the new type of passenger-carrying folding electric trailer includes a folding body 1, the folding body 1 is folded in half from the front to the back for storage, a seating device 4 is provided at the top of the front end of the folding body 1, a directional rod component 2 is connected to the bottom of the front end of the folding body 1, at least one first wheel 24 is connected to the directional rod component 2, at least two second wheels 15 are provided at the end of the folding body 1 away from the directional rod component 2, the folding body 1 is further provided with a power supply 16 for supplying power to the first wheel 24 and / or the second wheel 15 and a controller 17 for controlling the operation of the first wheel 24 and / or the second wheel 15.

[0030] Specifically, the folding vehicle body 1 employs a folding trailer that folds in two from the front to the rear, and a seating device 4 is rotatably mounted on the top of the front end of the folding vehicle body 1. This seating device 4 is used for the user to sit on the folding vehicle body 1. A directional rod component 2 is connected to the bottom of the folding vehicle body 1, and at least one first wheel 24 is further provided on the bottom of the directional rod component 2. On both sides of the end of the folding vehicle body 1 away from the directional rod component 2, one second wheel 15 is provided, fixedly connected to the folding vehicle body 1. A stable triangular structure is formed between the first wheel 24 and the second wheel 15, ensuring stable operation when the folding vehicle body 1 is loaded with cargo and reducing the possibility of overturning. Preferably, in this embodiment, the first wheel 24 is movably mounted and rotatable to control the direction of travel. The second wheel 15 is fixed and non-rotatable to avoid the inability to control the direction during operation. The front end of the folding vehicle body 1 is further equipped with a controller 17 for controlling the operation of the first wheel 24 and / or the second wheel 15, and a power supply 16 for supplying power to the first wheel 24 and / or the second wheel 15. As a result, the first wheel 24 and / or the second wheel 15 can automatically move under the control of the controller 17, driving the folding vehicle body 1 and achieving an electric automatic driving effect. In addition, the directional rod component 2 is used to steer the first wheel 24, and the user can sit in the seat device 4, thereby realizing the function of carrying a person and eliminating the need for manual towing when using the folding trailer, improving convenience of use and reducing the workload of the user.

[0031] Furthermore, both the first wheel 24 and the second wheel 15 may be drive wheels equipped with power, or either the first wheel 24 or the second wheel 15 may be a drive wheel, and this can be determined according to the actual usage requirements. In this embodiment, the first wheel 24 is preferably selected as the drive wheel, and since it and the directional rod component 2 are located at the same end, the wiring is more convenient and shorter. Also, the front drive configuration makes it easier to pass over uneven surfaces such as thresholds, resulting in better passability. In addition, the front drive configuration provides stronger traction and better driving performance under heavy loads.

[0032] The drive wheel is an electric wheel with a motor inside in the prior art, and specifically refers to the drive wheels of electric bicycles, electric motorcycles, etc., so the specific structure of the electric wheel will not be explained in detail here.

[0033] Furthermore, the folding vehicle body 1 includes a first rack 11 and a second rack 12, one end of the first rack 11 being connected to one end of the second rack 12, each of the two sides of the first rack 11 being provided with a bracket component 13, each end of the bracket component 13 on each side being connected with a support component 14, and each end of the first rack 11 being slidably provided with a telescopic inner rod 18, the end of the telescopic inner rod 18 away from the second rack 12 being rotatably connected to the directional rod component 2, the telescopic inner rod 18 being able to extend from the first rack 11 and move the directional rod component 2 away from the first rack 11.

[0034] Specifically, the folding vehicle body 1 includes a first rack 11, a second rack 12, a bracket component 13, and a support component 14. Four support components 14 are provided and arranged in a rectangular shape. The first rack 11 and the second rack 12 are all located within the rectangle enclosed by the support components 14, and one end of the first rack 11 and one end of the second rack 12 are connected. HingeThe first rack 11 and the second rack 12 are connected, and both of their separated ends are rotatably connected to corresponding support components 14. A bracket component 13 is also connected between the two support components 14 on the same side. This bracket component 13 has an "X" shape, and when both ends of the bracket component 13 are pressed, it can be folded inwards, so that when the first rack 11 and the second rack 12 are folded and stored, both bracket components 13 on both sides can be folded simultaneously. This bracket component 13 can share the gravitational force on the first rack 11 and the second rack 12 when unfolded. Preferably, the first rack 11 and the second rack 12 have a hollow structure in order to reduce the overall weight of the folding vehicle body 1. Telescopic inner rods 18 are slidably provided inside both sides of the end of the first rack 11 that is separated from the second rack 12, and the length of these telescopic inner rods 18 is less than the length of the first rack 11. The telescopic inner rod 18 can partially extend from the first rack 11 as needed. The front end of the telescopic inner rod 18 is rotatably connected to the directional rod component 2, and the telescopic inner rod 18 is rotatable longitudinally relative to the directional rod component 2, so that when the first rack 11 and the second rack 12 are folded and stored, the telescopic inner rod 18 can be folded relative to the directional rod component 2. Also, when the telescopic inner rod 18 extends, it can push the directional rod component 2 and the first wheel 24 away from the first rack 11. The maximum extension distance of the telescopic inner rod 18 is less than its own length, and the combination of the telescopic inner rod 18 and the first rack 11 enables the folding vehicle body 1 to be lifted, at which time the user can be better supported when sitting in the seating device 4.

[0035] Furthermore, the folding vehicle body 1 is provided with a protective cloth (not shown) to enclose items placed inside the folding vehicle body and prevent them from falling out.

[0036] Furthermore, the bottom surface of the end of the first rack 11 that connects to the second rack 12 is open, and a portion of the end of the second rack 12 closer to the first rack 11 is inserted into the first rack 11 and rotatably connected to the first rack 11.

[0037] Specifically, the bottom surface of the end of the first rack 11 that connects to the second rack 12 is open (not shown), and the length of the opening is less than half the length of the first rack 11. One end of the second rack 12 is inserted into one end of the opening in the first rack 11, and the insertion distance is less than the length of the opening, thereby preventing the first rack 11 and the second rack 12 from being folded relative to each other. Furthermore, the bottom surface has an open structure, which prevents the first rack 11 and the second rack 12 from sinking due to the loading of cargo, and improves the loading effect of the first rack 11 and the second rack 12.

[0038] Furthermore, a support frame 131 is connected between the two support components 14 at the same ends of the two bracket components 13, and horizontal adapter rods 132 are connected to the tops of both ends of the bracket components 13 on each side, so that the tops of both ends of the bracket components 13 are connected to the support components 14 via the adapter rods 132.

[0039] Specifically, in order to improve the overall stability of the folding vehicle body 1, support frames 131 are connected between the two support components 14 at the front end and between the two support components 14 at the rear end of the folding vehicle body 1. These support frames 131 may take the shape of a "straight" line, an "X" shape, or other shapes. The installation of the support frames 131 effectively prevents the two support components 14 at the same end from tilting towards the middle. Furthermore, the support frames 131 also play a role in supporting the seating device 4 and can share the weight when a person is loaded. The bracket component 13 also has an "X" shape, which increases the height of both ends when folded. Furthermore, since both ends of the bracket component 13 are connected to the support component 14, a conventional approach to avoid motion collisions that could prevent the bracket component 13 from folding is to configure the support component 14 as a telescopic structure. However, the installation of a telescopic structure tends to affect the stability of the support component 14. Therefore, in this embodiment, preferably, horizontal adapter rods 132 are rotatably connected to the tops of both ends of the bracket component 13, and the other end of each adapter rod 132 is rotatably connected to the top of the corresponding support component 14. Since the bottom of the bracket component 13 is restricted and cannot move, the bracket component 13 folds when its top moves. Thus, folding of the bracket component 13 can be achieved simply by providing adapter rods 132 to the tops of both ends of the bracket component 13. In addition, there is no need to make the support component 14 a telescopic structure, and since the adapter rods 132 are provided horizontally, they can also perform the function of supporting the seating device 4.

[0040] Furthermore, the length of the adapter rod 132 must match the travel distance of the top of the bracket component 13. Otherwise, it will affect the unfolding or folding of the bracket component 13.

[0041] Furthermore, in this embodiment, the directional rod component 2 includes a directional cross rod 21, a directional rod 22, and a sleeve rod 23, the first wheel 24 is provided below the directional cross rod 21, a steering rod 211 is drilled in the middle of the directional cross rod 21, the steering rod 211 is rotatable horizontally relative to the directional cross rod 21, one end of the sleeve rod 23 is rotatably connected to the top of the steering rod 211, the directional rod 22 is provided slidingly within the sleeve rod 23, the directional cross rod 21 is rotatably connected to the telescopic inner rod 18, the bottom of the steering rod 211 is connected to the first wheel 24, and the directional rod 22 steers the first wheel 24 by the steering rod 211.

[0042] Specifically, the directional rod component 2 includes a directional cross rod 21, a directional rod 22, and a sleeve rod 23. Both ends of the directional cross rod 21 are rotatably connected to a telescopic inner rod 18. The first wheel 24 is provided at both ends of the directional cross rod 21. A steering rod 211 is rotatably provided in the middle of the directional cross rod 21, and this steering rod 211 is horizontally rotatable on the directional cross rod 21. The bottom end of this steering rod 211 is connected to the first wheel 24, and the rotation of the first wheel 24 is controlled by the steering rod 211. The sleeve rod 23 is rotatably connected to the tip of the steering rod 211, and the directional rod 22 is slidably provided within the sleeve rod 23 and can extend out of the sleeve rod 23. When it is necessary to adjust the height of the directional rod 22, the directional rod 22 can be pulled out from within the sleeve rod 23. When the folding body 1 needs to be dragged, the sleeve rod 23 can be rotated to be inclined with respect to the steering rod 211, thereby facilitating dragging. When the telescopic inner rod 18 extends, the directional cross rod 21 and the first wheel 24 move in sync, extending the distance between the support point of the first wheel 24 and the support point of the second wheel 15, so that the support point of the seating device 4 is perfectly positioned between the first wheel 24 and the second wheel 15, thereby improving the passenger loading stability of the electric trailer.

[0043] Furthermore, two first wheels 24 are provided, each of which is located at both ends of the directional cross rod 21, and a directional link 212 is movably connected to the end of the steering rod 211 away from the sleeve rod 23, with both ends of the directional link 212 rotatably connected to the two first wheels 24.

[0044] Specifically, because the three-wheel structure is prone to tipping over when steering, in this embodiment, in order to improve the driving stability of the folding vehicle body 1 and enhance the safety of the driver, preferably two first wheels 24 are provided, and the two first wheels 24 are each provided at both ends of the directional cross rod 21. In order to simultaneously control the two first wheels 24 to rotate synchronously in the same direction, a directional link 212 is movably connected to the bottom of the steering rod 211, and both ends of the directional link 212 are rotatably connected to the corresponding first wheels 24, and the steering rod 211 translates the directional link 212 in the left-right direction when rotating, and the directional link 212 rotates the two first wheels 24 to the left or to the right, thereby achieving synchronous control of the two first wheels 24.

[0045] Furthermore, in this embodiment, vertical first sliding grooves 133 are provided at the bottom ends of the two support components 14 closest to the directional rod component 2, a pedal 3 is provided between the two first sliding grooves 133, and first sliding shafts 31 are provided on both sides of the bottom end of the pedal 3, and the bottom end of the pedal 3 is slidably connected to the first sliding grooves 133 via the first sliding shafts 31.

[0046] Specifically, when the directional rod component 2 is translated and the user sits in the seating device 4, a gap is created between the two telescopic inner rods 18, which can make it inconvenient to place the feet. Although it is possible to place the feet on the two telescopic inner rods 18, this posture is poor because both feet are spread apart. Therefore, in this embodiment, the bottom of each of the two support components 14 located in the first rack 11 is provided with an externally positioned vertical first sliding groove 133, that is, the first sliding groove 133 is located outside the surface of the support component 14, and a pedal 3 is provided between the two first sliding grooves 133. First sliding shafts 31 are provided on both sides of the bottom end of the pedal 3, and the pedal 3 is slidably connected to the first sliding groove 133 via the first sliding shafts 31 and is restricted to the front of the two support components 14. The pedal 3 is reversed relative to the support component 14 by the fitting of the first sliding shafts 31 and the first sliding grooves 133. When the directional rod component 2 is not extended, the pedal 3 is in close contact with the front of the support component 14, perpendicular to it. After the directional rod component 2 is extended, the pedal 3 can be reversed and hooked onto the telescopic inner rod 18 and the directional cross rod 21. At this time, when the user is seated in the seat device 4, they can step on the pedal 3, and the installation of the pedal 3 also enables the user to drive while standing.

[0047] Furthermore, in order to ensure that there is no need to artificially restrict the reversal of the pedal 3 when it is in close contact with the front of the support component 14, two additional second sliding grooves 134 are provided at the top of each of the two support components 14 where the first sliding groove 133 is provided, and notches (not shown) are made at the top of these second sliding grooves 134. In addition, second sliding shafts 32 are provided on both sides of the end of the pedal 3 away from the first sliding shaft 31, and the second sliding shafts 32 fit into the second sliding grooves 134, so that the pedal 3 can be restricted to be perpendicular to the front end of the folding frame 1 by the fitting of the second sliding shafts 32 and the second sliding grooves 134. When reversal is necessary, the pedal 3 can be reversed by pulling up the pedal 3 and disengaging the second sliding shafts 32 from the notches and the second sliding grooves 134.

[0048] Furthermore, since the pedal 3 is located above the telescopic inner rod 18 and is reversible relative to the support component 14, a relief structure corresponding to the telescopic inner rod 18 is provided at the end closest to the folding frame 1 in the horizontal position to avoid being restricted by the telescopic inner rod 18 when reversing, allowing the pedal 3 to reverse normally.

[0049] Furthermore, at least one folding limit pin 33 is provided inside the bottom end of the bottom surface of the pedal 3 to restrict the translation of the directional rod component 2 when the pedal 3 is folded, and at least one unfolding limit pin 34 is provided inside the front end of the bottom surface of the pedal 3 to restrict the translation of the directional rod component 2 when the pedal 3 is unfolded, and at least one pin hole 213 is provided on the top surface of the directional cross rod 21 to fit the folding limit pin 33 and the unfolding limit pin 34, and a relief hole 35 is further provided in the middle of the front end of the pedal 3 to fit the steering rod 211.

[0050] Specifically, at least one folding limit pin 33 is provided at the end of the pedal 3 closest to the folding frame 1 when the pedal 3 is in a horizontal position, and this folding limit pin 33 is spaced apart from and parallel to the bottom surface of the pedal 3. At least one unfolding limit pin 34 is provided at the end of the pedal 3 furthest from the folding frame 1 when the pedal 3 is in a horizontal position. In addition, a pin hole 213 corresponding to and fitting the folding limit pin 33 and the unfolding limit pin 34 is provided on the top surface of the directional cross rod 21. When the pedal 3 is in a horizontal position, the unfolding limit pin 34 is inserted into the pin hole 213. At this time, the directional cross rod 21 cannot translate because it is restricted by the pedal 3. The directional cross rod 21 can only translate after the pedal 3 has been lifted. When the directional cross rod 21 needs to be retracted, the pedal 3 must be lifted to disengage the deployment limit pin 34 from the pin hole 213 and to bring the pedal 3 into close contact with the front of the support component 14 perpendicularly. At this time, the folding limit pin 33 changes direction from towards the folding body 1 to downward. After retracting by a certain distance, the directional cross rod 21 cannot be retracted further because it is restricted by the folding limit pin 33. At this time, the pedal 3 must be lifted. Due to the installation of the first sliding groove 133, the pedal 3 moves upward when subjected to an upward force. The directional cross rod 21 can only be retracted further after it has lost the obstruction of the folding limit pin 33. When the pedal 3 is retracted to its limit position, after the pedal 3 is lowered, the folding limit pin 33 and the pin hole 213 correspond to each other, so the folding limit pin 33 is directly inserted into the pin hole 213, and under the restriction of the folding limit pin 33, the directional cross rod 21 cannot be translated after retraction, thereby the pedal 3's deployment limit pin 34 provides a limit after the directional cross rod 21 extends, and the folding limit pin 33 provides a limit after the directional cross rod 21 is retracted.

[0051] Furthermore, in this embodiment, a limiting sleeve 217 is fitted over all rotatable connection points between each of the telescopic inner rods 18 and the directional cross rods 21, and a sleeve reset spring is provided at the end of the limiting sleeve 217 facing the directional cross rods 21, and the limiting sleeve 217 is located at the connection point between the telescopic inner rod 18 and the directional cross rods 21 under the force acting of the sleeve reset spring.

[0052] Specifically, the telescopic inner rod 18 completely retracts into the first rack 11, but the directional cross rod 21 is restricted by the support component 14, creating a gap between it and the first rack 11. In this case, the telescopic inner rod 18 is restricted by the support frame 131 during rotation and cannot rotate in accordance with the first rack 11. Therefore, it is necessary to provide horizontally extending extension blocks 219 at both ends of the telescopic inner rod 18, thereby filling the gap between the telescopic inner rod 18 and the first rack 11, allowing the telescopic inner rod 18 to completely retract into the first rack 11, and making the rotation center of the telescopic inner rod 18 and the rotation center of the first rack 11 coaxial. Since the directional cross rod 21 is rotatably connected to the telescopic inner rod 18, a limiting sleeve 217 is movably fitted onto the extension block 219 to prevent rotation of the telescopic inner rod 18 relative to the directional cross rod 21 during normal use. Sleeve reset springs (not shown) are provided on both sides of the end of the limiting sleeve 217 facing the directional cross rod 21. Under the force of the sleeve reset springs, the limiting sleeve 217 is pressed against the rotatable connection point between the extending block 219 and the telescopic inner rod 18, thereby limiting the rotation of the telescopic inner rod 18 relative to the extending block 219. When the directional cross rod 21 is retracted to its limit position, the limiting sleeve 217 contacts the first rack 11 and is pressed by the first rack 11, causing it to slide in the direction of the directional cross rod 21 and simultaneously press the sleeve reset springs. When the directional cross rod 21 is fixed by the folding limit pin 33, the limiting sleeve 217 has already disengaged from the rotatable connection point between the extending block 219 and the telescopic inner rod 18. At this time, the telescopic inner rod 18 is rotatable relative to the extending block 219. When the directional cross rod 21 extends, Limited Sleeves The first rack 11 loses its pressure and slides under the elasticity of the sleeve reset spring to the rotatable connection point between the extending block 219 and the telescopic inner rod 18.

[0053] Furthermore, guide posts 218 are provided on both sides of the end of the limiting sleeve 217 that faces the directional cross rod 21. These guide posts 218 can be inserted into the directional cross rod 21, and the sleeve reset spring is provided on the outside of the guide posts 218. This causes a displacement when the sleeve reset spring is pressed, preventing the sleeve reset spring from deforming properly.

[0054] Furthermore, spaced steering connection lugs 214 are provided at the top of the steering rod 211, and an insertion hole 215 is provided between the two steering connection lugs 214. A boss 231 is provided at the bottom end of the sleeve rod 23, and the boss 231 is inserted between the two steering connection lugs 214 and rotatably connected via a pivot shaft. A limiting member 232 is movably provided inside the bottom end of the sleeve rod 23. When the directional rod 22 presses against the limiting member 232, one end of the limiting member 232 protrudes from the boss 231 and is inserted into the insertion hole 215.

[0055] Specifically, spaced steering connection lugs 214 are provided at the top of the steering rod 211, and a protruding boss 231 is provided at the bottom of the sleeve rod 23. This boss 231 matches the spacing distance between the two steering connection lugs 214 and is insertable between the two steering connection lugs 214. To achieve a rotatable connection, the sleeve rod 23 is rotatable relative to the steering rod 211 by connecting the boss 231 to the two steering connection lugs 214 via a pivot axis. To prevent the sleeve rod 23 from rotating relative to the steering rod 211 when not needed, a limiting member 232 is provided slidingly within the bottom of the sleeve rod 23. This limiting member 232 is slidable up and down within the bottom of the sleeve rod 23, one end of the limiting member 232 is capable of protruding from the boss 231, and a limiting reset spring 233 is provided at one end of the limiting member 232 located within the sleeve rod 23. When the limiting member 232 is pressed by the directional rod 22, one end of the limiting member 232 protrudes from the boss 231, and the limiting member 232 also synchronously presses the limiting reset spring 233. When the force applied by the directional rod 22 is lost, it retracts into the sleeve rod 23 under the resetting force of the limiting reset spring 233. Furthermore, an insertion hole 215 is provided between the two steering connection lugs 214 at the top of the steering rod 211 so that the limiting member 232 inside the sleeve rod 23 can be fitted and fixed to the steering rod 211. Once one end of the limiting member 232 is inserted into the insertion hole 215 after protruding from the boss 231, the fitting of the limiting member 232 and the insertion hole 215 restricts the rotation of the sleeve rod 23 relative to the steering rod 211. A rotating shaft sliding hole 234 is provided in the middle of the limiting member 232. The rotating shaft of the sleeve rod 23, which is rotatably connected to the steering rod 211, is located within the rotating shaft sliding hole 234, thereby allowing the limiting member 232 to slide between the sleeve rod 23 and the steering rod 211. After the limiting member 232 loses its pressure from the directional rod 22, the limiting reset spring 233 pushes the limiting member 232 upward. At this time, because it is limited by the rotating shaft, the distance the limiting member 232 is pushed upward is limited and can be adjusted by the length of the rotating shaft sliding hole 234.

[0056] Furthermore, in this embodiment, a handle ring 221 is provided at the top of the directional rod 22, and folding grooves 222 are provided on both sides of the handle ring 221. A gripping rod 223 is rotatably connected to the same end of the two folding grooves 222, and one of the gripping rods 223 is electrically connected to the controller 17 and used to control the movement speed of the first wheel 24 and / or the second wheel 15. A limit device 224 is further provided at the end of the gripping rod 223 that is connected to the folding groove 222 to limit the gripping rod 223 when it is stored in the folding groove 222 or when it is horizontal to the handle ring 221. The handle ring 221 is further provided with a plurality of control buttons 225 and a display device 226, each of which is electrically connected to the controller 17 via wires. Corresponding limit holes 227 are provided in the side walls of the directional rod 22 and the sleeve rod 23, respectively, and a limit locking pin 228 is provided inside the directional rod 22, the limit locking pin 228 fits into the limit hole 227, a locking pin button 229 is provided inside the bottom end of the handle ring 221, the locking pin button 229 drives the limit locking pin 228 to extend or retract, and a brake device 216 is further provided on the directional cross rod 21, the brake device 216 is connected to the first wheel 24.

[0057] Specifically, a handle ring 221 is provided at the top of the directional rod 22, and the shape of this handle ring 221 may be an inverted trapezoid, triangle, rectangle, circle, or other polygon to facilitate dragging by the user. Folding grooves 222 are provided on both sides of the handle ring 221, and a gripping rod 223 is rotatably connected to one end of the folding cover. This gripping rod 223 can be stored in the folding groove 222 when not in use and rotated horizontally when needed. To suit the driving habits of a typical person, one of the gripping rods 223 can be configured to be rotatable, that is, this gripping rod 223 can rotate in place on the handle ring 221, and the rotation angle controls the rotation speed of the first wheel 24, similar to the accelerator grip of an electric bicycle. A limit device 224 is provided on the top surface of the end of the folding groove 222 that connects to the gripping rod 223. This limit device 224 has a locking pin structure with an internal spring. A limit hole 227 that fits the limit device 224 is provided at the end of the gripping rod 223 that connects to the folding groove 222, in order to limit the gripping rod 223 when it is horizontal to the handle ring 221 or when it is retracted. The handle ring 221 is further provided with a number of control buttons 225, which include, but are not limited to, forward / reverse buttons, drive / drag switching buttons, trailer assist speed control buttons, light switch buttons, horn buttons, steering light control buttons, etc. Specifically, the button design of conventional electric bicycles can be referenced. The handle ring 221 is further provided with a display device 226 for displaying power consumption, speed, etc. The control buttons 225 and the display device 226 are electrically connected to the controller 17 via wires.

[0058] Corresponding limit holes 227 are provided in the side walls of the directional rod 22 and the sleeve rod 23, respectively, and a limit locking pin 228 that fits into the limit hole 227 is provided inside the directional rod 22. A locking pin button 229 is further provided on the handle ring 221, and when pressed by the locking pin button 229, the limit locking pin 228 protrudes from inside the directional rod 22 and combines with the limit hole 227 on the directional rod 22 and the sleeve rod 23, thereby restricting the directional rod 22 and preventing the directional rod 22 from moving freely within the sleeve rod 23. The specific locking between the locking pin button 229 and the limit locking pin 228 can be described by referring to the rod-rod limit structure of a suitcase in the prior art or the structure disclosed in Chinese Patent CN201821724858.2, so a detailed explanation is not provided here. The directional cross rod 21 is further equipped with a braking device 216, which employs the foot-operated braking system of a conventional tricycle and is connected to the braking structure of the two first wheels 24. By pressing the braking device 216, the speed brake of the first wheels 24 is achieved.

[0059] Furthermore, in this embodiment, the seat device 4 is made of a rigid material, and both ends of the seat device 4 are, respectively, Folding bicycle The seating device 4 is rotatably connected to both sides of the top of the front end, Folding bicycle It is possible to reverse it forward or backward.

[0060] Specifically, in order to improve the load stability and load-bearing capacity of the seating device 4, the seating device 4 is manufactured from a rigid material such as wood, plastic, or aluminum plate, and under the premise that it is not heavy, it can have sufficient load capacity. When manufactured from a rigid material, both ends of the seating device 4 are rotatably connected to both sides of the top of the front end of the folding body 1, so that the seating device 4 can be placed horizontally inside the top of the front end of the folding body 1 when in use, and the user can sit on it directly when needed. The seating device 4 is supported by the adapter rod 132 of the folding body 1 and can support the weight of a person. The rotatable connection of the seating device 4 allows the seat plate to be reversed counterclockwise at the front end of the folding body 1 when placing an item in the folding body 1, so as not to affect the placement of the item. After placing an item, the seat plate can be directly reversed clockwise and placed inside the front end of the folding body 1. Furthermore, the rotatable design avoids the problem of the folding vehicle body 1 not being able to be completely folded due to the limitations of the seating device 4 when folded in half for storage, thus avoiding the issue of occupying a large space. In addition, the ability to reverse the seating device 4 is convenient for use as a dining table when used outdoors.

[0061] Furthermore, in this embodiment, the seating device 4 is made of a flexible material and is installed in the top of the front end of the folding vehicle body 1, and support rods connected to the folding vehicle body 1 are provided on the front and / or rear sides of the seating device 4.

[0062] Specifically, in order to reduce weight and improve seat comfort, the seat device 4 may be manufactured from a flexible material such as fabric. When fabric is used, both ends of the seat device 4 are fitted onto adapter rods 132, and the adapter rods 132 support the seat device 4, allowing the user to sit directly on the seat device 4. Due to the flexible properties of the seat device 4, it is susceptible to the effects of gravity during use, which can pull the bracket components 13 on both sides inward and cause tilting deformation, affecting its use. Therefore, support rods are required on the front and / or rear sides of the seat device 4, preferably the front and rear sides. To limit the inward tilting of the bracket components 13 on both sides, both ends of the support rods must be connected to the adapter rods 132. The support rods may be detachable or sliding connections. A sliding connection means that the position of the support rods relative to the folding body 1 can be adjusted and that they can slide in the direction of the directional rod component 2 so as not to affect the storage of the folding body 1 when folding.

[0063] Operation and Operating Principle: Figure 1 shows the operating state. When folding is required in this state, the pedal 3 is lifted from the directional cross rod 21 and brought into close contact with the front end surface of the folding body 1 perpendicularly. Then, the directional rod component 2 is pushed in the direction of the folding body 1, and the telescopic inner rod 18 is retracted. When the directional cross rod 21 is obstructed by the folding limit pin 33, the pedal 3 is pulled up to fully retract the telescopic inner rod 18, and at the same time, the directional cross rod 21 is also fully retracted. Simultaneously, the limiting sleeve 217 is pressed by the first rack 11 and retracts into the extending block 219, exposing the rotatable connection point between the extending block 219 and the telescopic inner rod 18. When the directional cross rod 21 is fully retracted, the folding limit pin 33 and the pin hole 213 are aligned. At this time, when the pedal 3 is lowered, the folding limit pin 33 is inserted into the pin hole 213, realizing the limit of the directional cross rod 21. Subsequently, an upward force is applied to the middle of the first rack 11 and the second rack 12 to fold them in half for storage. During the process of folding the first rack 11 and the second rack 12 in half for storage, the bracket components 13 on both sides are stored, completing the folding process as shown in Figure 9.

[0064] When deployment is required, first, a forward force is applied to one end of the two folding frame 1 and a backward force is applied to the other end, and the first rack 11 and the second rack 12 are pulled by the two forces and deployed from the folded state. When the first rack 11 and the second rack 12 are deployed, the bracket components 13 on both sides are deployed synchronously. After deployment is complete, the pedal 3 is pulled upward, the folding limit pin 33 is released from the pin hole 213, and then the directional rod component 2 is pulled forward, and after being pulled a predetermined distance, the pedal 3 is placed horizontally. At this time, the deployment limit pin 34 is inserted into the pin hole 213, realizing that the directional rod component 2 is limited in the deployed state. Directional rod contraction or Growth To prevent deathAt the same time, as the directional rod component 2 extends, the limiting sleeve 217 loses its pressure from the first rack 11, so the sleeve reset spring generates a repulsive force acting on the limiting sleeve 217, pushing it to the connection point between the extending block 219 and the telescopic inner rod 18, thereby limiting the rotation of the directional cross rod 21 relative to the telescopic inner rod 18. Once the deployment is complete, the user can sit in the seating device 4, place their feet on the pedals 3, and control the directional rod component 2 with their hands.

[0065] The half-unfolded state is shown in Figures 7 and 8, where the folding body 1 is fully unfolded and the directional rod component 2 is not extended. This state contributes to drag, and at this time, the limit locking pin 228 can be folded by pressing the locking pin button 229. Subsequently, the directional rod 22 is pulled out of the sleeve, and after the directional rod 22 has extended a predetermined distance and the directional rod 22 and the limit hole 227 of the sleeve are aligned, the limit locking pin 228 automatically penetrates and protrudes through the directional rod 22 and the limit hole 227 of the sleeve, re-limiting the directional rod 22. At the same time, as the directional rod 22 extends, the limiting member 232 loses its pressure on the directional rod 22 and is pushed up under the repulsive force of the limit reset spring 233, and the end of the limiting member 232 detaches from the insertion hole 215 and retracts into the boss 231. At this time, the sleeve rod 23 can rotate up and down relative to the steering rod 211, tilting the directional rod 22 and thereby making it easier to drag. Of course, the drag position of the directional rod component 2 can be changed depending on the driving state of the electric trailer, and it can also be driven in a half-extended state. However, if the distance between the support point of the first wheel 24 and the support force receiving point of the seat device 4 is too close, a forward tilt due to gravity will occur, causing the tail of the vehicle to lift up, which affects safety, so driving with a person seated in this state is not recommended.

[0066] As described above, this invention provides a seating function for passengers by providing a seating device 4 at the top of the front end of the folding body 1, thereby reducing the effort required to use the electric trailer. Furthermore, by slidingly connecting the directional rod component 2 to the folding body 1, the directional rod component 2 can extend, increasing the distance between the support point of the seating device 4 and the support point of the first wheel 24, improving the stability of passenger-carrying operation and enhancing safety performance. In addition, pedals 3 are provided at the front end of the folding body 1, facilitating foot placement and standing operation, increasing the versatility of use for the electric trailer, and the electric trailer can be folded and stored, improving portability.

[0067] This invention is not limited to what is described in the specification and embodiments, and further advantages and modifications can be easily realized by those skilled in the art. Accordingly, without departing from the spirit and scope of the general concepts set forth in the claims and equivalents of the utility model registration, this invention is not limited to specific details, representative apparatus and illustrated examples described herein. [Explanation of Symbols]

[0068] 1. Folding frame 11. Rack 1 12. Rack 2 13. Bracket component 131, Support frame 132, Adapter Rod 133, First sliding groove 134, Second sliding groove 14. Support components 15, 2nd wheel 16, power supply 17. Controller 18. Extendable inner rod 2. Directional rod component 21. Directional cross rod 211, Steering rod 212, Directional link 213, pinhole 214, rudder connection lag 215, insertion hole 216. Brake system 217, Limited Sleeves 218, Guidepost 219, Extended Block 22. Directional rod 221, Handle Ring 222, Folding groove 223, Grasping Rod 224, Limit device 225, control button 226, display device 227, limit hole 228, Limit locking pin 229. Locking pin button 23. Sleeve Rod 231, Boss 232, Restricting member 233, Limit reset spring 234. Rotating shaft sliding hole 24, first wheel 3. Pedals 31. First sliding shaft 32. Second sliding shaft 33. Folding limit pin 34. Deployment limit pin 35. Escape hole 4. Seat equipment

Claims

1. It is a new type of passenger-carrying folding electric trailer, A new type of foldable electric trailer for carrying a person, comprising a foldable body, the foldable body being folded in half from the front to the back for storage, a seating device provided at the top of the front end of the foldable body, a directional rod component connected to the bottom of the front end of the foldable body, at least one first wheel connected to the directional rod component, at least two second wheels provided at the end of the foldable body away from the directional rod component, and the foldable body further comprising a power supply for supplying power to the first wheel and / or the second wheel, and a controller for controlling the operation of the first wheel and / or the second wheel.

2. The folding vehicle body includes a first rack and a second rack, one end of the first rack is connected to one end of the second rack, a bracket component is provided on each of the two sides of the first rack, support components are connected to both ends of the bracket component on each side, and telescopic inner rods are slidably provided inside both sides of one end of the first rack, the telescopic inner rods can extend out of the first rack, and the directional rod component moves away from the first rack, characterized in that the new passenger-carrying folding electric trailer according to claim 1.

3. The new type of foldable electric trailer for carrying a person, according to claim 2, characterized in that retractable inner rods are slidably provided inside both sides of one end of the first rack, and the ends of the retractable inner rods that are away from the second rack are rotatably connected to the directional rod component.

4. The new type of passenger-carrying folding electric trailer according to claim 2, characterized in that the bottom surface of the end connected to the first rack and the second rack is open, and a portion of the end of the second rack closest to the first rack is inserted into the first rack and rotatably connected to the first rack.

5. The directional rod component includes a directional cross rod, a directional rod, and a sleeve rod, the first wheel is provided below the directional cross rod, a steering rod is drilled in the middle of the directional cross rod, the steering rod is rotatable horizontally relative to the directional cross rod, one end of the sleeve rod is rotatably connected to the top of the steering rod, the directional rod is provided slidingly within the sleeve rod, the directional cross rod and the telescopic inner rod are rotatably connected, the bottom of the steering rod is connected to the first wheel, and the directional rod steers the first wheel by the steering rod, as described in claim 3.

6. A new type of passenger-carrying folding electric trailer according to claim 2, characterized in that a support frame is connected between the two support components at the same end of the two bracket components.

7. A new type of foldable electric trailer for carrying a person, as described in claim 6, characterized in that horizontal adapter rods are connected to the tops of both ends of the bracket component on each side, and the tops of both ends of the bracket component are connected to the support component via the adapter rods.

8. The new type of passenger-carrying folding electric trailer according to claim 5, characterized in that two first wheels are provided, each of the two first wheels is provided at both ends of the directional cross rod, a directional link is movably connected to the end of the steering rod away from the sleeve rod, and both ends of the directional link are rotatably connected to the two first wheels.

9. The new type of foldable electric trailer for carrying a person, according to claim 5, characterized in that vertical first sliding grooves are provided at the bottom ends of two support components near the directional rod component, a pedal is provided between the two first sliding grooves, first sliding shafts are provided on both sides of the bottom end of the pedal, and the bottom end of the pedal is slidably connected to the first sliding groove via the first sliding shaft.

10. The new passenger-carrying folding electric trailer according to claim 9, characterized in that at least one folding limit pin is provided inside the bottom end of the bottom surface of the pedal to restrict the translation of the directional rod component when the pedal is folded, at least one pin hole is provided on the top surface of the directional cross rod to fit the folding limit pin, and a relief hole is provided in the middle of the tip of the pedal to fit the steering rod.

11. The new passenger-carrying folding electric trailer according to claim 10, characterized in that at least one deployment limit pin is provided inside the tip of the bottom surface of the pedal for restricting the translation of the directional rod component when the pedal is deployed, and the deployment limit pin fits into the pin hole.

12. The steering rod is provided with spaced steering connection lugs at its top, with an insertion hole between the two steering connection lugs, a boss is provided at the bottom end of the sleeve rod, the boss is inserted between the two steering connection lugs and rotatably connected via a pivot shaft, a limiting member is movably provided inside the bottom end of the sleeve rod, and when the directional rod presses against the limiting member, one end of the limiting member protrudes from the boss and is inserted into the insertion hole, as described in claim 5.

13. A handle ring is provided at the top of the directional rod, folding grooves are provided on both sides of the handle ring, a gripping rod is rotatably connected to the same end of the two folding grooves, and one of the gripping rods is electrically connected to the controller and used to control the moving speed of the first wheel and / or the second wheel, as described in claim 5.

14. The new type of folding electric trailer for carrying a person, according to claim 13, further comprising a limiting device at the end of the gripping rod connected to the folding groove for limiting when the gripping rod is stored in the folding groove or when the gripping rod is horizontal with respect to the handle ring.

15. The new type of passenger-carrying folding electric trailer according to claim 13, characterized in that the handle ring is further provided with a plurality of control buttons and a display device, and each of the plurality of control buttons and the display device is electrically connected to the controller via a wire.

16. The new passenger-carrying folding electric trailer according to claim 13, characterized in that the side walls of the directional rod and the sleeve rod are provided with corresponding limit holes, a limit locking pin is provided inside the directional rod, the limit locking pin fits into the limit hole, a locking pin button is provided inside the bottom end of the handle ring, the locking pin button drives the limit locking pin to extend or retract, a brake device is provided on the directional cross rod, the brake device is connected to the first wheel.

17. The new type of foldable electric trailer for carrying a person, according to claim 5, characterized in that a limiting sleeve is fitted over all rotatable connection points between each of the telescopic inner rods and the directional cross rods, a sleeve reset spring is provided at the end of the limiting sleeve facing the directional cross rod, and the limiting sleeve is located at the connection point between the telescopic inner rod and the directional cross rod under the force acting of the sleeve reset spring.

18. The new passenger-carrying folding electric trailer according to claim 1, characterized in that the seating device is made of a rigid material, both ends of the seating device are rotatably connected to both sides of the top of the front end of the folding vehicle body, and the seating device is reversible forward or backward relative to the folding vehicle frame.

19. The new passenger-carrying folding electric trailer according to claim 1, characterized in that the seating device is made of a flexible material and is provided in the top of the front end of the folding body, and support rods connected to the folding body are provided on the front and / or rear sides of the seating device.