CN220615862U

CN220615862U - A linkage folding structure for a passenger-carrying folding electric trailer

Info

Publication number: CN220615862U
Application number: CN202322215438.9U
Authority: CN
Inventors: 罗海成; 李秀清
Original assignee: Shenzhen Yunrui IOT Technology Co Ltd
Current assignee: Shenzhen Yunrui IOT Technology Co Ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-03-19
Anticipated expiration: 2033-08-16

Abstract

The application discloses but linkage folding structure of manned folding electric trailer includes: the folding bicycle comprises a folding bicycle body, wherein two ends of the folding bicycle body are provided with an inner supporting rod and an outer supporting rod which are sleeved in a sliding way, at least two outer supporting rods at one end of the folding bicycle body are respectively connected with a linkage mechanism in a rotating way, one end of the linkage mechanism is connected with a steering mechanism in a rotating way, at least one first wheel is connected below the steering mechanism, the linkage mechanism is used for pulling the steering mechanism to move and limiting the steering mechanism to rotate, and the folding bicycle body is further provided with a second wheel, a controller and a power supply; by adopting the design, the pedal rod is connected with the outer support rod, the folding bicycle body synchronously drives the pedal rod and the steering mechanism to fold when being folded, the rotation of the first wheel relative to the pedal rod is limited through the arrangement of the limiting rotating rod, the folding bicycle is folded without additional folding action, the folding bicycle is simpler to use, convenient and fast, meanwhile, the structure is reasonable, the support is ensured, the structure is simpler, the limiting structure is not required to be arranged on the pedal rod and the outer support rod, and the production cost is effectively reduced.

Description

Linkage folding structure of foldable electric trailer capable of carrying people

Technical Field

The utility model relates to the technical field of folding electric trailers, in particular to a linkage folding structure of a foldable electric trailer capable of carrying a person.

Background

The foldable trailer is a foldable and draggable carrying vehicle, is convenient to store and store due to simple use and can be widely applied to outdoor activities or short-distance transportation when carrying things.

At present, most of the existing folding electric trailers only realize electric power assistance, such as patent number CN202220922980.0 (power-assisted trailer), although the convenience is improved, the use is easier, but according to the description and the content recorded in the description, the existing folding electric trailers can not realize manned operation, and when in use, the existing folding electric trailers also need to be manually towed, and the user is required to walk on foot, so that the user is easy to feel tired, the use experience is poor, the inventor designs an electric scooter capable of realizing manned operation, such as patent number CN202310568322.5, (a folding electric trailer with sliding wheels) by rotating a supporting rod at the front end of a vehicle body, wheels are arranged on the supporting rod in a sliding manner, the supporting rod is put down and slide to the front end of the supporting rod during use, the manned operation is realized, the trailer can realize the function of manned operation, the use convenience is greatly improved, and the user is required to walk on foot, the carrying convenience is easily brought to the user, but in the practical use, the inventor has a complicated folding structure when the folding electric trailer is found, the wheels need to move to the front end of the vehicle body relatively, and the folding structure is relatively complicated, and the limit is relatively required to move at the front end of the folding structure.

Accordingly, there is a need to design a ganged folding structure for a collapsible electric trailer that overcomes one or more of the above-described deficiencies in the prior art.

Disclosure of Invention

The technical scheme adopted by the utility model for solving the technical problems is as follows: a linkage folding structure of a foldable electric trailer for carrying a person, comprising: the folding car body, folding car body is gathering together the car body, the both sides of front end and rear end of folding car body all are equipped with interior bracing piece and the outer bracing piece that the slip cap was established simultaneously, two of at least one end outer bracing piece rotates respectively and is connected with link gear, link gear keep away from the one end rotation of outer bracing piece is connected with accuse to the mechanism, accuse is connected with at least one first wheel to the below of mechanism, accuse is to the mechanism control the orientation of first wheel, link gear is used for pulling when relative outer bracing piece rotates, accuse is to mechanism to folding car body place direction removes and restriction accuse is to the mechanism is relative link gear rotates, folding car body's bottom still is equipped with the second wheel, the second wheel with first wheel interval sets up, folding car body still be equipped with the controller and with the power that the controller electricity is connected, first wheel and/or the second wheel with the controller electricity is connected for the drive folding car body is gone.

In a preferred embodiment, the outer support rods slide relative to the inner support rods, the bottom ends of the two outer support rods are fixedly connected with an adapter, one end of the adapter horizontally extends, one end of the adapter, which is far away from the outer support rods, is provided with a notch with an open bottom, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, two opposite side walls of the notch are provided with vertical downward extension parts, and when the outer support rods slide relative to the inner support rods, the adapter is driven to ascend or descend, and the adapter drives the linkage mechanism to rotate relative to the adapter.

In a preferred embodiment, the inner support rod slides relative to the outer support rod, the bottom ends of the two outer support rods are both connected with an adapter in a sliding manner, one end of the adapter horizontally extends, one end of the adapter, which is far away from the outer support rod, is provided with a notch with an open bottom, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, one side wall, which is opposite to the notch, is provided with a vertical downward extension part, and when the adapter slides relative to the outer support rod, the linkage mechanism is driven to rotate relative to the adapter.

In a preferred embodiment, a foldable synchronizing rod is further arranged between the two switching pieces, spring clamping pins are respectively arranged at two ends of the synchronizing rod, one end of each spring clamping pin penetrates through the side wall of each switching piece and is located in the notch, a fixing block is further arranged at the bottom end of each outer supporting rod and located below each switching piece, holes matched with the corresponding spring clamping pins are formed in the fixing block, a pull wire is arranged on each synchronizing rod in a penetrating mode, and two ends of each pull wire are respectively connected with the corresponding spring clamping pins.

In a preferred embodiment, the linkage comprises: pedal rod, limit rotating rod; the same ends of the pedal rod and the limiting rod are respectively connected with the outer supporting rod in a rotating way, the other ends of the pedal rod and the limiting rod are respectively connected with the steering mechanism in a rotating way, and the two ends of the pedal rod and the limiting rod are not coaxially arranged.

In a preferred embodiment, the pedal lever and the limit lever are arranged in a staggered manner in the vertical projection direction.

In a preferred embodiment, the outer support rod and the inner support rod are respectively fixedly connected with a frame connecting seat, the frame connecting seat connected with the outer support rod is arranged at intervals with the frame connecting seat connected with the inner support rod, and the frame connecting seat connected with the inner support rod is provided with an embedded groove for allowing the outer support rod to be inserted into one end of the outer support rod far away from the connecting frame connecting seat.

In a preferred embodiment, the steering mechanism comprises: a steering rod assembly, a connecting assembly and a connecting rod assembly; the utility model discloses a folding bicycle is characterized by comprising a folding bicycle body, a connecting assembly, a steering rod assembly, a connecting assembly and a connecting assembly, wherein the folding bicycle body is characterized in that two first wheels are arranged, the two first wheels are respectively connected with two ends of the connecting assembly in a rotating way, the two first wheels deviate from one side of the folding bicycle body and are provided with wheel swing arms which extend horizontally, the steering rod assembly penetrates through the middle of the connecting assembly, the bottom of the steering rod assembly is connected with the middle of the connecting assembly in a transmission way, two ends of the connecting assembly are respectively connected with the corresponding wheel swing arms in a rotating way, the steering rod assembly controls the orientation of the first wheels through the connecting assembly, and two ends of the connecting assembly are respectively connected with corresponding linkage mechanisms in a rotating way.

In a preferred embodiment, the connection assembly comprises: the folding piece is arranged on the outer side of the steering rod assembly, two ends of the folding piece are respectively and rotatably connected with a first connecting rod, one ends of the two first connecting rods, which are far away from the folding piece, are respectively and rotatably connected with a second connecting rod, the first wheel is rotatably connected with the second connecting rod, the side wall of the second connecting rod is rotatably connected with the linkage mechanism, the folding piece is further provided with a connecting limiting device for limiting the rotation of the first connecting rod, and one side of the second connecting rod, which is adjacent to the first connecting rod, is rotatably connected with the linkage mechanism.

In a preferred embodiment, the connection limiting device comprises: the middle part of the pressing rod is provided with a pressing block, the pressing rod is arranged in the middle part of the folding piece in a sliding manner, and the top of the pressing rod is detachably connected with a pressing handle; limiting pins are respectively arranged in the two ends of the folding piece in a sliding mode, the pressing rods are located between the two limiting pins, one ends, opposite to the limiting pins, of the pressing rods are inclined planes, reset springs are respectively arranged in the two limiting pins, the limiting pins move towards the direction where the pressing rods are located through the reset springs, and pin holes which correspond to the limiting pins and are matched with the limiting pins are formed in the ends, connected with the folding piece, of the first connecting rods.

In a preferred embodiment, the connecting rod assembly comprises: the first transmission rod and locate first transmission rod both ends and respectively with the second transmission rod that first transmission rod rotated and is connected, two the second transmission rod is kept away from the one end rotation of first transmission rod is connected with the third transmission rod, the third transmission rod is kept away from the one end of second transmission rod with the wheel swing arm that corresponds rotates to be connected, still swing joint has the direction connecting rod at the middle part of first transmission rod, the direction connecting rod with the bottom fixed connection of direction lever subassembly.

In a preferred embodiment, the steering rod assembly comprises: an outer rod, an inner rod and a turning rod; the turning rod penetrates through the first wheel assembly, the top of the turning rod is rotationally connected with the outer rod, the inner rod is slidably arranged in the outer rod, the top end of the inner rod is connected with a directional handle, a limiting assembly is arranged in one end, connected with the turning rod, of the outer rod, and the limiting assembly is used for limiting the outer rod to rotate relative to the turning rod.

In a preferred embodiment, the direction handle is annular, two sides of the direction handle are respectively provided with folding grooves, the same ends of the two folding grooves are rotatably connected with holding rods, one holding rod is rotatably arranged, one end of the holding rod connected with the folding grooves is further provided with a handle limiting bayonet lock, the holding rod is used for limiting when being stored in the folding grooves or when being horizontal relative to the direction handle, the direction handle is further provided with a plurality of control keys and a display device, and the control keys and the display device are respectively electrically connected with the controller.

In a preferred embodiment, the inner rod is internally provided with a telescopic bayonet, the outer rod is provided with a plurality of telescopic bayonet holes matched with the telescopic bayonet, and the inner wall of the bottom of the steering handle is also provided with a telescopic button for controlling the telescopic bayonet to extend and retract.

The beneficial effects of the utility model are as follows: according to the folding bicycle, the two pedal rods are connected with the outer support rod, so that the folding bicycle body can synchronously drive the pedal rods and the direction control mechanism to fold when being folded, the rotation of the first wheel relative to the pedal rods is limited through the arrangement of the limit rotating rods, the normal use is prevented from being influenced, the folding operation is not needed, the folding bicycle is simpler to use, convenient and quick, meanwhile, the structure is reasonable, the support is guaranteed, the structure is simpler, the limit structure is not needed to be arranged on the pedal rods and the outer support rod, and the production cost is effectively reduced.

Drawings

FIG. 1 is a schematic view of a usage state structure of the present utility model;

FIG. 2 is a schematic view of the structure of the folding bicycle body of the present utility model;

FIG. 3 is a schematic view of the structure of the connecting assembly and the linkage mechanism of the present utility model;

FIG. 4 is a cross-sectional view of the connection limiting device of the present utility model;

FIG. 5 is a schematic view of the steering rod assembly of the present utility model;

FIG. 6 is a cross-sectional view of the steering rod assembly of the present utility model;

FIG. 7 is a schematic view of a connecting rod assembly of the present utility model;

FIG. 8 is a folded state diagram of the present utility model;

FIG. 9 is a schematic view of a second embodiment of a linkage mechanism according to the present utility model;

FIG. 10 is a schematic circuit diagram of a controller according to the present utility model;

Fig. 11 is a block diagram of an electrical connection of the present utility model.

In the figure:

10. folding the vehicle body; 11. an outer support rod; 111. a frame connecting seat; 112. a fixed block; 12. an inner support bar; 13. an adapter; 14. a notch; 15. an extension; 16. an embedding groove; 17. a second wheel; 18. a controller; 19. a power supply;

20. a linkage mechanism; 21. a pedal lever; 22. a rotation limiting rod;

30. a direction control mechanism; 31. a steering rod assembly; 311. an outer rod; 3111. a telescopic clamping hole; 312. an inner rod; 3121. a telescopic bayonet; 313. turning the rod; 314. a directional handle; 3141. a telescoping button; 315. a folding groove; 316. a grip; 317. a handle limiting bayonet lock; 318. a control key; 319. a display device; 32. a limit component; 321. a limit folding bolt; 322. a pin head; 323. a rotating shaft chute; 324. a return spring is folded in a limited way; 33. a connection assembly; 331. a folding member; 332. a first connecting rod; 3321. a pin hole; 333. a second connecting rod; 34. connecting a limiting device; 341. pressing a pressing rod; 342. extruding a block; 343. pressing the handle; 344. a limiting pin; 345. a return spring; 35. a connecting rod assembly; 351. a first transmission rod; 352. a second transmission rod; 353. a third transmission rod; 354. a direction link; 36. a first wheel; 361. a wheel swing arm;

40. A synchronizing lever; 41. a spring bayonet lock; 42. and (5) pulling wires.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.

In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

As shown in fig. 1 to 11, the present utility model provides a linkage folding structure of a foldable electric trailer, comprising: the foldable car body 10 is a gathering car body, both sides of the front end and the rear end of the foldable car body 10 are simultaneously provided with an inner supporting rod 12 and an outer supporting rod 11 which are sleeved in a sliding way, at least two outer supporting rods 11 at one end are respectively connected with a linkage mechanism 20 in a rotating way, one end, far away from the outer supporting rod 11, of the linkage mechanism 20 is connected with a steering mechanism 30 in a rotating way, at least one first wheel 36 is connected below the steering mechanism 30, the steering mechanism 30 controls the direction of the first wheel 36, the linkage mechanism 20 is used for pulling the steering mechanism 30 to move in the direction of the foldable car body 10 relative to the outer supporting rod 11 and limiting the steering mechanism 30 to rotate relative to the linkage mechanism 20, the bottom of the foldable car body 10 is also provided with a second wheel 17, the second wheel 17 and the first wheel 36 are arranged at intervals, the foldable car body 10 is also provided with a controller 18 and a power supply 19 electrically connected with the controller 18, and the first wheel 36 and/or the second wheel 17 are electrically connected with the controller 18 for driving the foldable car body 10;

Specifically, in this embodiment, the folding cart body 10 is a gathering cart body, that is, the folding cart body 10 is folded from front, rear, left and right to middle, four supporting rods which are formed by sleeving an inner supporting rod 12 and an outer supporting rod 11 are arranged on the folding cart body 10, and are respectively positioned at two sides of the front end and two sides of the rear end of the folding cart body 10, wherein the outer supporting rod 11 is positioned at the outer side of the inner supporting rod 12, a linkage mechanism 20 is rotationally connected at the bottom end of the outer supporting rod 11, the linkage mechanism 20 can rotate relative to the outer supporting rod 11, and the linkage mechanism 20 is only provided with two linkage mechanisms which are respectively positioned at one end of the folding cart body 10 or two by two or are respectively positioned at the front end or the rear end of the folding cart body 10, and can be determined according to actual use requirements, a steering mechanism 30 is rotationally connected at one end of the linkage mechanism 20 far from the outer supporting rod 11, the linkage mechanism 20 can rotate relative to the steering mechanism 30, and when the outer supporting rod 11 slides up and down relative to the inner supporting rod 12, and the linkage mechanism 20 is lifted up or lowered, and the other end of the linkage mechanism 20 is rotationally controlled to be prevented from being connected with the folding cart body 10 or from being turned to the steering mechanism 30 when the folding cart body 10 is controlled to be turned to be far away from the folding mechanism 10 or turned away from the steering mechanism 30; the first wheels 36 are connected below the steering mechanism 30, one or two first wheels 36 may be provided, when one first wheel 36 is selected, the first wheels 36 need to be arranged below the middle of the steering mechanism 30, when two first wheels 36 are provided, the two first wheels 36 are arranged at intervals according to the requirement, wherein the interval distance affects the running stability of the electric trailer, the distance is larger than the distance is smaller, in the application, the stability of the electric trailer during running is improved, preferably two first wheels 36, the middle line of the width of the two first wheels 36 corresponds to the axis of the supporting rod 11 up and down, the two first wheels 36 are in transmission connection with the steering mechanism 30, the steering mechanism 30 can control the two first wheels 36 to synchronously steer, the second wheels 17 are also arranged at the bottom of the folding body 10, the second wheels 17 are arranged at intervals with the first wheels 36, the second wheel 17 may be one or two, wherein the total number of the first wheel 36 and the second wheel 17 is at least three, preferably two, and four are more stable, and it should be noted that when the front end and the rear end of the folding body 10 are both provided with the linkage mechanism 20 and the steering mechanism 30, the second wheel 17 needs to be disposed under the steering mechanism 30 at the rear end to carry cargo and people in front and rear, while a third wheel (not shown) may be disposed under one end of the folding body 10 in order to enhance the carrying capacity, and when the third wheel is disposed, the second wheel 17 needs to be a universal wheel to avoid affecting steering, and needs to be in a wrong direction with the first wheel 36 and the second wheel 17 in the length direction to avoid being unable to be fully folded due to the volume of the wheels, wherein the third wheel needs to be disposed at one end far from the control direction, therefore, one end of the control direction is grounded more easily by utilizing the lever principle to avoid the out-of-control direction; the folding body 10 is further provided with a controller 18 and a power source 19, in this embodiment, the first wheel 36 and the second wheel 17 may be driving wheels with in-wheel motors, or alternatively one of the first wheel 36 and the second wheel 17 may be the driving wheels, where it should be noted that if the folding body 10 is provided with a third wheel and a single driving is used, the wheel at the end far from the control direction should be avoided being the driving wheel, so that the slipping caused by insufficient friction between the driving wheel and the ground is prevented, and the four driving is not affected.

Further, the bottom ends of the two outer support rods 11 are fixedly connected with an adaptor 13, one end of the adaptor 13 extends horizontally, one end of the adaptor 13 away from the outer support rod 11 is provided with a notch 14 with an opening at the bottom, one end of the linkage mechanism 20 is inserted into the notch 14 and is rotationally connected with the notch 14, one side wall opposite to the two notches 14 is provided with a vertical downward extension part 15, when the outer support rod 11 slides relative to the inner support rod 12, the adaptor 13 is driven to rise or fall, and the adaptor 13 drives the linkage mechanism 20 to rotate relative to the adaptor 13;

specifically, the linkage mechanism 20 is driven in two modes, namely, the outer support rod 11 slides relative to the inner support rod 12, an adaptor 13 can be fixedly connected to the bottom end of the outer support rod 11, one end of the adaptor 13 horizontally extends out, one end of the adaptor 13 far away from the outer support rod 11 is provided with a notch 14 with an opening on the bottom surface, the notch 14 is matched with the linkage mechanism 20, one end of the linkage mechanism 20 far away from the steering mechanism 30 is inserted into the notch 14 and rotationally connected with the notch 14, so that the linkage mechanism 20 can rotate downwards relative to the adaptor 13, when the outer support rod 11 slides upwards relative to the inner support rod 12, the adaptor 13 is driven to rise, at the moment, only one end of the linkage mechanism 20 connected with the adaptor 13 rises under the limitation of the gravity of the steering mechanism 30, and in the rising process, the linkage mechanism 20 rotates downwards relative to the adaptor 13, and one end of the linkage mechanism 20 connected with the steering mechanism 30 can only vertically move upwards, so that the end of the linkage mechanism 20 connected with the steering mechanism 30 can be pulled to the folding car body 10, and the linkage mechanism 20 is pulled upwards to the folding end of the steering mechanism 10; when the outer support rod 11 descends relative to the inner support rod 12, the steering mechanism 30 is pushed to move away from the folding car body 10 until the outer support rod 11 is completely descended to a position, and the linkage mechanism 20 is in a horizontal state at this time, so that a user can stand on the linkage mechanism conveniently; in this embodiment, the folding body 10 does not automatically rise or fall by means of the sliding movement of the outer support rod 11 made by the folding body 10 when the folding body 10 is folded, so as to achieve folding of the linkage mechanism 20 and the steering mechanism 30, and the folding action is synchronous with folding of the folding body 10, namely, the folding body 10 drives the linkage mechanism 20 and the steering mechanism 30 to fold synchronously when folding, so that the folding action is not needed to be carried out separately.

Further, a frame connecting seat 111 is fixedly connected to the outer support rod 11 and the inner support rod 12, which are sleeved with each other, the frame connecting seat 111 connected to the outer support rod 11 is arranged at intervals with the frame connecting seat 111 connected to the inner support rod 12, and an embedded groove 16 for inserting one end of the outer support rod 11 far away from the connecting frame connecting seat 111 is arranged on the frame connecting seat 111 connected to the inner support rod 12;

specifically, each of the outer support rod 11 and the inner support rod 12 is fixedly connected with a frame connecting seat 111, the frame connecting seats 111 are used for connecting with the frame, the frame connecting seats 111 of the outer support rod 11 and the inner support rod 12 sleeved inside and outside are located above, one is located below, namely, the frame connecting seat 111 connected with the outer support rod 11 is located at the top end of the outer support rod 11, the frame connecting seat 111 connected with the inner support rod 12 is located at the bottom end of the inner support rod 12, and because the outer support rod 11 slides relative to the inner support rod 12, the pedal rod 21 is connected with the outer support rod 11 through the adapting piece 13, the pedal rod 21 is used for standing a person, at the moment, acting force is transmitted from the pedal rod 21 to the outer support rod 11, pulling force is generated on the outer support rod 11, in order to promote pulling force of the pedal rod 21 by the outer support rod 11, meanwhile, stability of the outer support rod 11 is promoted, an embedded groove 16 adapted to the outer diameter of the outer support rod 11 is formed in the frame connecting seat 111, but when the outer support rod 11 slides downwards, the end portion is directly inserted into the embedded groove 16, wherein in order to enable the bottom end of the outer support rod 11 to be inserted into the embedded groove 16, and the bottom end 13 of the outer support rod 11 needs to be penetrated out of the adapting piece 13.

Further, in this embodiment, the inner support rods 12 slide relative to the outer support rods 11, the bottom ends of the two outer support rods 11 are both slidably connected with an adaptor 13, one end of the adaptor 13 extends horizontally, a notch 14 with an opening at the bottom is formed at one end of the adaptor 13 away from the outer support rods 11, one end of the linkage mechanism 20 is inserted into the notch 14 and is rotationally connected with the notch 14, a vertical downward extension part 15 is formed at one side wall opposite to the two notches 14, and when the adaptor 13 slides relative to the outer support rods 11, the linkage mechanism 20 is driven to rotate relative to the adaptor 13;

specifically, the linkage mechanism 20 is driven in two modes, namely, the inner support rod 12 slides relative to the outer support rod 11, the adaptor 13 is arranged on the outer support rod 11 in a sliding mode, one end of the adaptor 13 horizontally extends out, one end of the adaptor 13 far away from the outer support rod 11 is provided with a notch 14 with an opening at the bottom surface, the notch 14 is matched with the linkage mechanism 20, one end of the linkage mechanism 20 far away from the steering mechanism 30 is inserted into the notch 14 and is rotationally connected with the notch 14, so that the linkage mechanism 20 can rotate downwards relative to the adaptor 13, and when the adaptor 13 slides relative to the outer support rod 11, one end of the linkage mechanism 20 connected with the adaptor 13 is driven to ascend or descend, and the linkage mechanism 20 drives the steering mechanism 30 to approach or be far away from a vehicle body; in this way, because the user stands on the linkage mechanism 20 when in use, under the heavy pressure of the user, the linkage mechanism 20 does not have a self-folding condition when in use, so that a limit structure does not need to be made on the linkage mechanism 20, compared with the first mode, the mode is different in that the linkage mechanism 20 and the direction control mechanism 30 are not driven to fold synchronously when the folding car body 10 is folded, and the folding action needs to be made additionally, if the synchronous folding needs to be realized, the outer support rod 11 does not move when the folding car body 10 is folded in this mode, the inner support rod 12 slides relative to the outer support rod 11, and therefore, a connecting piece is required to be arranged at the top of the inner support rod 12 and connected with the adapter 13, and the adapter 13 is driven to slide synchronously when the outer support rod 11 slides through the connecting piece, so that the synchronous folding can be realized.

Further, in the present embodiment, the linkage mechanism 20 includes: a pedal lever 21 and a rotation limiting lever 22; the same ends of the pedal rod 21 and the limit rotating rod 22 are respectively in rotational connection with the outer supporting rod 11, the other ends of the pedal rod 21 and the limit rotating rod 22 are respectively in rotational connection with the direction control mechanism 30, and the two ends of the pedal rod 21 and the limit rotating rod 22 are not coaxially arranged;

specifically, the linkage mechanism 20 includes: the pedal rod 21 and the limit bull stick 22, the one end of pedal rod 21 inserts in the notch 14 of adaptor 13 to rotate with the notch 14 and be connected, the other end is connected with accuse to the mechanism 30 rotation, and the one end of limit bull stick 22 is connected with the extension 15 of adaptor 13 rotation, and the other end is connected with accuse to the mechanism 30 rotation, and the both ends of limit bull stick 22 are in non-coaxial with the both ends of pedal rod 21 to limit through limit bull stick 22 and the rotation of two tie points restriction mechanism 30 relative pedal rod 21 and limit bull stick 22 of pedal rod 21, avoid influencing the use.

Further, the pedal rod 21 and the limit rotating rod 22 are arranged in a staggered manner in the vertical projection direction;

specifically, since the pedal rod 21 and the limit lever 22 are vertical when being folded, the pedal rod 21 and the limit lever 22 cannot be vertical to avoid mutual influence between the pedal rod 21 and the limit lever 22 after being folded, so that the interval distance between the pedal rod 21 and the limit lever 22 is required to be enlarged, the front-back distance after being folded is larger, the pedal rod 21 and the limit lever 22 are arranged in a staggered manner in the vertical projection direction, specifically, the limit lever 22 is arranged on the outer side wall of the adapter 13, the pedal rod 21 is arranged in the adapter 13, and the side wall of the adapter 13 is arranged between the pedal rod 21 and the limit lever 22 at intervals.

Further, in this embodiment, the direction control mechanism 30 includes: a steering rod assembly 31, a connection assembly 33, a link assembly 35; the two first wheels 36 are provided with two first wheels 36 which are respectively and rotatably connected with two ends of the connecting assembly 33, one side of the two first wheels 36, which is away from the folding vehicle body 10, is provided with a horizontally extending wheel swing arm 361, the steering rod assembly 31 is arranged in the middle of the connecting assembly 33 in a penetrating way, the bottom of the steering rod assembly 31 is in transmission connection with the middle of the connecting rod assembly 35, two ends of the connecting rod assembly 35 are respectively and rotatably connected with the corresponding wheel swing arm 361, the steering rod assembly 31 controls the orientation of the first wheels 36 through the connecting rod assembly 35, and two ends of the connecting assembly 33 are respectively and rotatably connected with the corresponding linkage mechanism 20;

specifically, the direction control mechanism 30 includes: a steering rod assembly 31, a connection assembly 33, a link assembly 35; the both ends of coupling assembling 33 rotate with corresponding pedal rod 21 and limit bull stick 22 respectively to be connected, steering yoke assembly 31 wears to establish at coupling assembling 33's middle part, the bottom passes out coupling assembling 33 and is connected with coupling assembling 35, and coupling assembling 33 pivot relatively is rotatable to steering yoke assembly 31, in this embodiment, first wheel 36 is equipped with two, two first wheels 36 rotate the both ends that set up at coupling assembling 33, two first wheels 36 can rotate relatively coupling assembling 33 pivot, every first wheel 36 deviates from folding automobile body 10 one side is equipped with the wheel swing arm 361 that extends horizontally, two first wheels 36 pass through wheel swing arm 361 and rotate with coupling assembling 35's both ends respectively to be connected, when coupling assembling 31 rotates, drive coupling assembling 35 motion, coupling assembling 35 drive rotates the first wheels 36 of locating on its both ends and rotate in the same direction in step, thereby realize the directional control to first wheel 36.

Further, the connection assembly 33 includes: the folding piece 331 is arranged at the outer side of the steering rod assembly 31, two ends of the folding piece 331 are respectively and rotatably connected with a first connecting rod 332, one ends of the two first connecting rods 332, which are far away from the folding piece 331, are respectively and rotatably connected with a second connecting rod 333, the first wheel 36 is rotatably connected with the second connecting rod 333, the side wall of the second connecting rod 333 is rotatably connected with the linkage mechanism 20, the folding piece 331 is also provided with a connecting limiting device 34 for limiting the rotation of the first connecting rod 332, and one side of the second connecting rod 333 adjacent to the first connecting rod 332 is rotatably connected with the linkage mechanism 20;

specifically, the folding piece 331 is sleeved outside the bottom of the steering rod assembly 31, the folding piece 331 and the steering rod assembly 31 can be connected together through a bearing, the steering rod assembly 31 can be prevented from moving vertically relative to the folding piece 331 while the steering rod assembly 31 is not prevented from rotating relative to the folding piece 331, the bottom of the steering rod assembly 31 penetrates out of the folding piece 331, the two ends of the folding piece 331 are respectively connected with a first connecting rod 332 in a rotating manner through rotating shafts, one ends of the two first connecting rods 332, which are far away from the folding piece 331, are respectively connected with a second connecting rod 333 in a rotating manner through rotating shafts, the two first wheels 36 are connected below one ends of the second connecting rods 333, which are far away from the first connecting rods 332, through rotating shafts, and meanwhile, the second connecting rods 333 are connected with the pedal rod 21 in a rotating manner towards one side of the folding body 10, wherein the limiting rod 22 is also connected with the second connecting rods 333 in a rotating manner, when the steering rod assembly 31 is subjected to upward force, the first connecting rods 332 can move upwards relative to the folding piece 331, at the moment, the first connecting rods 332 are connected with the pedal rod 21 in a rotating manner in a 90 ° in the vertical direction, and the second connecting rods 333 are connected with the pedal rod 21 in a rotating manner, and the rotating relatively limited by the second connecting rods 332 are not connected with the first connecting rods 333; during the rotation of the first connecting rod 332, the two first wheels 36 are driven to close or separate, so that the connecting assembly 33 is adapted to the folding width of the folding bicycle 10; because the folding member 331 is freely rotatably connected with the first connecting rod 332, in order to avoid the vertical movement of the folding member 331 caused by the driving of the steering rod assembly 31 during the use, the normal use is affected, a connection limiting device 34 is arranged in the middle of the folding member 331, and the connection limiting device 34 is used for limiting the rotation of the first connecting rod 332 relative to the folding member 331, thereby ensuring that the rotation of the first connecting rod 332 can be avoided when needed, and ensuring the use safety and the use experience.

It should be noted that, because the first connecting rod 332 is rotationally connected to the folding member 331 and the second connecting rod 333, in order to avoid the sinking condition of the first connecting rod 332 in the normal use condition, rounded corners are respectively disposed at two ends of the folding member 331, and only an upper side or a lower side of each end of the folding member 331 is disposed with the rounded corners, and the positions are related to the rotation direction of the first connecting rod 332, if the first connecting rod 332 rotates downward relative to the folding member 331 in the horizontal state, the rounded corners of the end are located at the lower side, and the first connecting rod 332 rotates upward relative to the second connecting rod 333 in the horizontal state, the rounded corners of the end are located at the upper side. The rounded corners may be disposed at two ends of the first connecting rod 332 or disposed on the folding member 331 and the second connecting rod 333, and in this application, in order to avoid affecting the structure of the first connecting rod 332, the rounded corners are disposed at one ends of the folding member 331 and the second connecting rod 333 connected with the first connecting rod 332.

Wherein, the connection point of the pedal lever 21 and the second connecting rod 333 and the connection point of the first wheel 36 and the second connecting rod 333 should be avoided on the same vertical line, so that the point of the pedal lever 21 acting on the second connecting rod 333 in the vertical state is staggered with the supporting point of the first wheel 36, so that when the pedal lever 21 is unfolded, the pedal lever 21 can force the first wheel 36 to move forward by extrusion, and the unfolding of the pedal lever 21 is realized; the pedal lever 21 can be in an inclined state after being folded by controlling the angle of the pedal lever.

One of the two second connecting rods 333 is provided with a service brake (not shown) which is connected to the first wheel and/or the second wheel for braking.

It should be noted that, if the driving mode of the linkage mechanism 20 is the second mode and the linkage folding is not required, as shown in fig. 9, a synchronizing rod 40 is disposed between the two connectors 13, and the synchronizing rod 40 is formed by connecting a plurality of connecting rods in a head-to-tail rotation manner so as to adapt to the folding of the folding vehicle body 10, and the structure of the connecting component 33 can be specifically referred to, when the folding is required, only lifting the synchronizing rod 40 is required, so that the two connectors 13 can slide synchronously relative to the outer support rod 11; the adaptor 13 does not have a limiting effect due to non-linkage of folding, the two ends of the synchronizing rod 40 are respectively provided with the spring clamping pins 41, the ends of the spring clamping pins 41 can penetrate out of the extending part 15 in a normal state, a stay wire 42 can be connected between the two spring clamping pins 41, the spring clamping pins 41 retract by pulling the stay wire 42, meanwhile, the frame connecting seat 111 is provided with the extended fixing block 112, the fixing block 112 is provided with an opening, when the spring clamping pins 41 correspond to the opening, the spring clamping pins penetrate into the opening and are matched with the fixing block 112 under the action of the spring clamping pins 41, so that the sliding of the adaptor 13 relative to the outer supporting rod 11 is limited, and the pedal rod 21 and the direction control mechanism 30 are not limited after folding due to non-linkage, so that the pedal rod 21 and the direction control mechanism 30 are easy to be automatically unfolded, a limit bayonet lock can be arranged on one surface of the second connecting rod 333, which is rotationally connected with the pedal rod 21, the limit bayonet lock has the same structure as the spring bayonet lock 41, the ends of the limit bayonet lock are all bayonet locks with springs, and the ends of the limit bayonet lock are semicircular, in order to realize that the pedal rod 21 drives the steering mechanism 30 to fold, the limit bayonet lock can automatically penetrate into a hole of the fixed block 112, a slope is arranged at one end of the fixed block 112, which faces the limit bayonet lock, when the steering mechanism 30 moves towards the folding car body 10, the limit bayonet lock is extruded by the slope to retract, and when the steering mechanism 30 moves to a limit position, the limit bayonet lock corresponds to the hole, after the extrusion of the fixed block 112 is lost, the limit bayonet lock automatically inserts into the hole to realize the limit of the steering mechanism 30, a tension spring can be arranged at the other end of the limit bayonet lock, the limit is convenient to release, one end of the hole, which faces the limit bayonet lock, can be arranged into a trapezoid shape in section, and the diameter of the limiting bayonet lock needs to be greater than the diameter of the hole, so that only the end part of the limiting bayonet lock is propped in the end part of the hole, and when the limiting is required to be released, only a certain acting force is required to be applied, and the limiting bayonet lock can be propped back through the side wall of the hole.

Further, the connection limiting device 34 includes: a pressing rod 341, wherein a pressing block 342 is arranged in the middle of the pressing rod 341, the pressing rod 341 is slidably arranged in the middle of the folding piece 331, and a pressing handle 343 is detachably connected to the top of the pressing rod 341; limiting pins 344 are slidably disposed in the two ends of the folding member 331, the pressing rod 341 is located between the two limiting pins 344, opposite ends of the two limiting pins 344 are inclined planes, return springs 345 are disposed in the two limiting pins 344, the limiting pins 344 move towards the direction in which the pressing rod 341 is disposed through the return springs 345, and pin holes 3321 corresponding to and adapted to the limiting pins 344 are formed in the ends of the two first connecting rods 332 connected with the folding member 331;

specifically, the connection limiting device 34 is disposed on the folding member 331, a receiving cavity (not shown in the figure) is formed in the middle of the folding member 331, a pressing rod 341 is slidably disposed in the receiving cavity, the top of the pressing rod 341 is located outside the folding member 331, a pressing handle 343 is connected to the top of the pressing rod 341 through a fastener such as a screw, so that a user can conveniently press the pressing handle from the outside, an integrally formed pressing block 342 is further disposed in the middle of the pressing rod 341, the pressing block 342 moves up and down in the receiving cavity along with the vertical movement of the pressing rod 341, limiting pins 344 are slidably disposed in two ends of the folding member 331 respectively, the pressing rod 341 is located between the two limiting pins 344, opposite sides of the two limiting pins 344 are inclined planes which incline upwards respectively, and when the pressing block 342 moves downwards, two ends of the pressing block 342 are contacted with one end of the limiting pins 344 in the inclined planes and press the limiting pins 344, and the limiting pins 344 are extruded outwards of the folding member 331 through the inclined planes; meanwhile, a pin hole 3321 matched with the limiting pin 344 is respectively formed in the middle of one end of the two first connecting rods 332 and the folding piece 331 in a rotating way, when the two limiting pins 344 are extruded outwards by the extrusion block 342, the two limiting pins 344 are inserted into the pin holes 3321, so that the folding piece 331 and the first connecting rods 332 are fixed together through the limiting pins 344, the first connecting rods 332 are prevented from rotating and arching relative to the folding piece 331 when not needed, the first connecting rods 332 and the folding piece 331 are rotationally connected through rotating shafts, in order to prevent the rotating shafts from forming movement interference on the limiting pins 344, slotted holes are formed in the limiting pins 344, and the rotating shafts are positioned in the slotted holes and can slide in the slotted holes, so that the limiting pins 344 can move between the folding piece 331 and the first connecting rods 332 without being limited by the rotating shafts; in order to improve the use convenience of the connection limiting device 34, two limiting pins 344 are respectively provided with a reset spring 345, one end of each reset spring 345 is connected with each limiting pin 344, and the other end of each reset spring 345 is connected with the rotating shaft, so that the limiting pins 344 can be pushed to the inside of the recovery folding piece 331 under the acting force of the reset springs 345 after the extrusion of the extrusion blocks 342 is lost, and the first connecting rod 332 is separated from the plugging state with the first connecting rod 332, and at the moment, the first connecting rod 332 can be rotated, and meanwhile, the next connection is facilitated.

It should be noted that, when the extrusion block 342 moves down to the limit position, the contact between the extrusion block 342 and the limiting pin 344 is not separated, so that the limiting pin 344 is prevented from being influenced by the reset spring 345 after the limit of the extrusion block 342 is lost, so that the spacing distance between the two limiting pins 344 is shorter, the extrusion block 342 is positioned below the two limiting pins 344, and the situation that the pressing rod 341 cannot be pulled up occurs, preferably, when the extrusion block 342 descends to the limit position, the end parts of the two limiting pins 344 are propped against the top of the side wall of the extrusion block 342, so that the contact distance between the limiting pins 344 and the extrusion block 342 is prolonged when the extrusion block 342 ascends, and the situation that the limiting pin 344 is separated from the pin hole 3321 due to the limit of the extrusion block 342 when the extrusion block 342 is lost due to vibration is reduced in normal use; meanwhile, a rod cover (not shown) is installed on the top of the accommodating cavity through a fastener such as a screw, etc., after the pressing rod 341 is placed in the accommodating cavity, the pressing rod 341 is prevented from being separated from the accommodating cavity through the rod cover, and the folding piece 331 is integrally formed, so that the folding piece 331 is not limited by a spring when the rotating shaft is placed, and mounting slots (not shown in the figure) are respectively formed in the tops of two ends of the folding piece 331, and the restoring spring 345 is extruded through an external tool, so that the restoring spring is separated from the mounting position of the rotating shaft. The bottom of the pressing rod 341 may or may not penetrate out of the bottom of the folding member 331, and when the pressing rod 341 is penetrated out, an interval is required between the bottom end of the steering rod assembly 31 and the folding member 331, so as to avoid restricting the swing of the swing arm after the pressing rod 341 penetrates out of the folding member 331.

It should be noted that, because the folding body 10 is synchronously gathered from four directions of front, back, left and right to the middle when folding, the folding body 10 can drive the two pedal rods 21 to be gathered when folding, but because of the horizontal relation between the folding piece 331 and the first connecting rod 332, the two pedal rods 21 cannot be gathered together under the condition that the horizontal relation between the folding piece 331 and the first connecting rod 332 is not interfered, so that the problem that the folding body 10 cannot be gathered is limited; the second is that the connecting component 33 is still horizontal, but a torsion spring is disposed at the connection position of the first connecting rod 332 and the folding component 331 or at the connection position of the first connecting rod 332 and the second connecting rod 333, the torsion spring generates lifting force for the folding component 331 or the first connecting rod 332 when the connecting component 33 is horizontal, but the folding component 331 or the first connecting rod 332 cannot be lifted up due to the limiting factors of pulling the connecting limiting device 34 and the two pedal rods 21, and when the folding component 33 is needed to be folded, the pressing rod 341 is pulled up, at the moment, the limitation of the connecting limiting device 34 is lost, but the limitation of the two pedal rods 21 is still met, so that the folding component 331 or the first connecting rod 332 cannot be lifted up, and only when the folding vehicle body 10 is folded, the folding vehicle body 10 converts the pulling force into assistance through the pedal rods 21, and the folding component 331 or the first connecting rod 332 is lifted up by the torsion spring, thereby realizing folding of the connecting component 33.

Further, the link assembly 35 includes: the steering device comprises a first transmission rod 351 and second transmission rods 352 which are arranged at two ends of the first transmission rod 351 and respectively connected with the first transmission rod 351 in a rotating way, wherein one ends of the two second transmission rods 352, which are far away from the first transmission rod 351, are rotationally connected with third transmission rods 353, one ends of the third transmission rods 353, which are far away from the second transmission rods 352, are rotationally connected with corresponding wheel swing arms 361, a direction connecting rod 354 is further movably connected in the middle of the first transmission rod 351, and the direction connecting rod 354 is fixedly connected with the bottom end of a steering rod assembly 31;

specifically, two second transmission rods 352 and two third transmission rods 353 are respectively arranged, two ends of a first transmission rod 351 are respectively connected with the second transmission rod 352 in a rotating way through a rotating shaft, one ends of the two second transmission rods 352 far away from the first transmission rod 351 are respectively connected with the third transmission rod 353 in a rotating way through a rotating shaft, one ends of the two third transmission rods 353 far away from the second transmission rod 352 are respectively connected with corresponding wheel swing arms in a rotating way, the first transmission rod 351, the second transmission rod 352 and the third transmission rod 353 can vertically rotate, the first transmission rod 351 is in rotating connection with a direction rod assembly 31 through a direction connecting rod 354, a rotating shaft is fixedly arranged in the middle of the first transmission rod 351, a displacement groove (not shown in the figure) in sliding fit with the rotating shaft is formed in one end of the direction connecting rod 354, and one end of the direction connecting rod 354 far away from the displacement groove is fixedly connected with the bottom end of the direction rod assembly 31; when the first transmission rod 351, the second transmission rod 352 and the third transmission rod 353 are in a horizontal state, the horizontal rotation of the direction rod assembly 31 drives the first transmission rod 351 to move left and right through the direction connecting rod 354 to drive the second transmission rod 352 and the third transmission rod 353 to move left and right, and the third transmission rod 353 drives the wheel swing arm 361 to swing left or right so as to drive the first wheel 36 to rotate left and right; when the first transmission rod 351 receives an upward force, the second transmission rod 352 can be driven to vertically rotate relative to the third transmission rod 353.

It should be noted that, since the second transmission rod 352 needs to rotate relative to the first transmission rod 351 and the third transmission rod 353, both ends of the second transmission rod 352 are arc-shaped so that the second transmission rod 352 can rotate, but in order to avoid the sinking between the second transmission rod 352 and the first transmission rod 351 and the third transmission rod 353, one end of the second transmission rod 352 connected to the first transmission rod 351 and the third transmission rod 353 is provided with a rounded corner, respectively, wherein the rounded corner is provided on only an upper side or a lower side of each end of the second transmission rod 352, and the rounded corner is located at a position corresponding to a direction of rotation based on a horizontal direction, if the second transmission rod 352 rotates upward relative to the third transmission rod 353 in a horizontal state, the rounded corner is located at the upper side, and the lower side is a corner, so that the sinking is avoided by the limitation of the corner, wherein the rounded corner positions of both ends of the second transmission rod 352 are opposite, if the second transmission rod 352 rotates relative to the first transmission rod 351 and the third transmission rod 353, the rounded corner is located at the upper side relative to the lower side of the second transmission rod 352.

Further, in the present embodiment, the steering rod assembly 31 includes: an outer rod 311, an inner rod 312, a turning rod 313; the turning rod 313 is inserted into the first wheel 36 assembly, the top of the turning rod 313 is rotatably connected with the outer rod 311, the inner rod 312 is slidably disposed in the outer rod 311, the top of the inner rod 312 is connected with a directional handle 314, a limit assembly 32 is disposed in one end of the outer rod 311 connected with the turning rod 313, and the limit assembly 32 is used for limiting the rotation of the outer rod 311 relative to the turning rod 313;

specifically, the inner rod 312 is movably disposed in the outer rod 311, the turning rod 313 is disposed on the folding member 331 in a penetrating manner, the turning rod 313 can rotate relative to the folding member 331, the direction connecting rod 354 is fixedly connected with the bottom end of the turning rod 313, the top of the turning rod 313 is rotatably connected with the bottom end of the outer rod 311, and the outer rod 311 can rotate vertically relative to the turning rod 313, so that when the dragging is required, the angle of the direction rod assembly 31 can be changed, and the dragging is more convenient; to limit the free rotation of the outer rod 311 relative to the turning rod 313, a limiting component 32 is disposed in the bottom end of the outer rod 311, which includes: limit and roll over the bolt 321, limit and roll over the reset spring 324, limit and roll over the bolt 321 slip to set up in the one end that outer lever 311 is connected with turn lever 313, limit and roll over the bolt 321 and can slide from top to bottom in outer lever 311, be equipped with bolt head 322 at limit and roll over the reset spring 324 cover and establish in limit and roll over the one end outside of bolt 321, limit and roll over the one end of reset spring 324 and bolt head 322, the other end offsets with the bottom of outer lever 311, and the bottom of outer lever 311 still sets up the through-hole (not shown) that supplies limit and roll over the bolt 321 to wear out, simultaneously, one end middle part that turn over the lever 313 and outer lever 311 are connected sets up the bolt hole 3321, can contact with bolt head 322 when inner lever 312 is retracted in outer lever 311, and the tip extrusion outer lever 311 of limit and roll over the bolt 321, simultaneously, limit and roll over the bolt 311 is realized between the outer lever 311 and the fixed connection of outer lever 311, thereby the inner lever 313 need be removed, the fixed connection between the outer lever 311 is realized through limit and roll over the bolt 311, thereby the inner lever 313 is realized, the fixed connection between the outer lever 311 and the outer lever 311 is required, the tip is removed, the tip is bent over the inner lever 311 is removed, the tip is extruded to the limit and is 311, simultaneously through bolt head 322 is extruded through bolt head 322, limit and is extruded after extruding limit and roll over the limit and reset spring 324, limit is extruded, limit and roll over on the limit and roll over on.

Further, in this embodiment, the direction handle 314 is ring-shaped, two sides of the direction handle 314 are respectively provided with a folding groove 315, the same ends of the two folding grooves 315 are rotatably connected with a holding rod 316, one of the holding rods 316 is rotatably disposed, one end of the holding rod 316 connected with the folding groove 315 is further provided with a handle limiting bayonet lock 317 for limiting when the holding rod 316 is accommodated in the folding groove 315 or when the holding rod 316 is horizontal relative to the direction handle 314, the direction handle 314 is further provided with a plurality of control keys 318 and a display device 319, and the control keys 318 and the display device 319 are respectively electrically connected with the controller 18;

specifically, the direction handle 314 may be inverted trapezoid, triangle, rectangle, circle, or other polygon, so that a user can drag the hand in the direction handle 314, two sides of the direction handle 314 are respectively provided with a folding groove 315, one end of the folding sleeve is rotatably connected with a holding rod 316, the holding rod 316 can be accommodated in the folding groove 315 when not in use, the holding rod 316 can be rotated horizontally when in use, one of the holding rods 316 can be set to rotate, i.e. the holding rod 316 can rotate on the direction handle 314 in situ, like a valve handle of an electric bicycle, and the rotation speed of an external electric wheel is controlled by the rotation angle; a handle limiting bayonet lock 317 is further provided on a top surface of one end of the folding groove 315 connected to the grip rod 316, the handle limiting bayonet lock 317 has a bayonet lock structure with a spring therein, and a limiting hole (not shown) adapted to the handle limiting bayonet lock 317 is provided on one end of the grip rod 316 connected to the folding groove 315 for limiting the grip rod 316 when the grip rod 316 is horizontal or stored relative to the grip rod 314; a plurality of control keys 318 are further arranged on the steering handle 314, the control keys 318 include, but are not limited to, a forward/reverse key, a driving/dragging switching key, a trailer power assisting speed control key, a car light switching key, a horn key, a steering lamp control key and the like, and the steering handle 314 is further provided with a display device 319 for displaying electric quantity and speed, and the display device 319 and the control keys 318 are respectively electrically connected with the controller 18.

Further, a telescopic bayonet 3121 is provided in the inner rod 312, a plurality of telescopic bayonet 3111 adapted to the telescopic bayonet 3121 is provided on the outer rod 311, and a telescopic button 3141 for controlling the telescopic bayonet 3111 to extend and retract is further provided on the bottom inner wall of the steering handle 314;

specifically, the inner rod 312 is provided with a telescopic bayonet 3121, the telescopic bayonet 3121 is adapted to the telescopic bayonet 3111, the direction handle 314 is further provided with a telescopic button 3141, the telescopic bayonet 3121 is pushed by the telescopic button 3141, the telescopic bayonet 3111 is inserted into the telescopic bayonet 3111 of the outer rod 311 from the inner rod 312 to limit the inner rod 312, so as to avoid free movement of the inner rod 312 in the outer rod 311, and the specific structure between the telescopic button 3141 and the telescopic bayonet 3121 adopts the prior art, and can refer to the pull rod limiting structure of the luggage case in the prior art or the structure disclosed in the chinese patent CN201821724858.2, so that detailed details will not be repeated herein.

It should be noted that, in order to enhance the comfort of use of the trailer, a seat plate may be detachably mounted above the front end of the folding body, and when the user uses the folding body, the user may sit on the seat plate, step on the pedal lever, and hold the steering rod assembly.

In summary, according to the folding bicycle, the two pedal rods 21 are connected with the outer support rod 11, so that the folding bicycle body 10 can synchronously drive the pedal rods 21 and the direction control mechanism 30 to fold when being folded, the rotation of the first wheel 36 relative to the pedal rods 21 is limited through the arrangement of the limit rotating rod 22, and the normal use is prevented from being influenced.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. A linkage folding structure of a foldable electric trailer for carrying a person, comprising: the folding car body, folding car body is gathering together the car body, the both sides of front end and rear end of folding car body all are equipped with interior bracing piece and the outer bracing piece that the slip cap was established simultaneously, two of at least one end outer bracing piece rotates respectively and is connected with link gear, link gear keep away from the one end rotation of outer bracing piece is connected with accuse to the mechanism, accuse is connected with at least one first wheel to the below of mechanism, accuse is to the mechanism control the orientation of first wheel, link gear is used for pulling when relative outer bracing piece rotates, accuse is to mechanism to folding car body place direction removes and restriction accuse is to the mechanism is relative link gear rotates, folding car body's bottom still is equipped with the second wheel, the second wheel with first wheel interval sets up, folding car body still be equipped with the controller and with the power that the controller electricity is connected, first wheel and/or the second wheel with the controller electricity is connected for the drive folding car body is gone.

2. The linkage folding structure of the foldable electric trailer capable of carrying people according to claim 1, wherein the outer support rods slide relative to the inner support rods, the bottom ends of the two outer support rods are fixedly connected with adapter members, one ends of the adapter members horizontally extend, a notch with an opening at the bottom is formed in one end of each adapter member far away from the outer support rods, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, a vertical downward extending part is arranged on one side wall of each of the two opposite notches, and when the outer support rods slide relative to the inner support rods, the adapter members are driven to ascend or descend, and the adapter members drive the linkage mechanism to rotate relative to the adapter members.

3. The linkage folding structure of the foldable electric trailer capable of carrying people according to claim 1, wherein the inner support rods slide relative to the outer support rods, the bottom ends of the two outer support rods are both connected with an adapter in a sliding manner, one end of the adapter horizontally extends, a notch with an opening at the bottom is formed in one end of the adapter away from the outer support rods, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, a vertical downward extending part is arranged on one side wall opposite to the two notches, and the adapter drives the linkage mechanism to rotate relative to the adapter when sliding relative to the outer support rods.

4. The linkage folding structure of the manned folding electric trailer according to claim 3, further comprising a foldable synchronizing rod between the two connectors, wherein spring clamping pins are respectively arranged at two ends of the synchronizing rod, one end of each spring clamping pin penetrates through the side wall of each connector and is positioned in the notch, a fixing block is further arranged below the connector at the bottom end of the outer supporting rod, a hole matched with each spring clamping pin is formed in the fixing block, a pull wire is arranged on the synchronizing rod in a penetrating mode, and two ends of each pull wire are respectively connected with the corresponding spring clamping pin.

5. The ganged-folding structure of a manned foldable electric scooter of claim 1, wherein the ganged mechanism comprises: pedal rod, limit rotating rod; the same ends of the pedal rod and the limiting rod are respectively connected with the outer supporting rod in a rotating way, the other ends of the pedal rod and the limiting rod are respectively connected with the steering mechanism in a rotating way, and the two ends of the pedal rod and the limiting rod are not coaxially arranged.

6. The foldable electric scooter of claim 5, wherein the pedal lever and the rotation limiting lever are disposed in a staggered manner in a vertical projection direction.

7. The linkage folding structure of the manned foldable electric trailer according to claim 2, wherein the outer support rod and the inner support rod which are sleeved are respectively fixedly connected with a frame connecting seat, the frame connecting seat connected with the outer support rod and the frame connecting seat connected with the inner support rod are arranged at intervals, and the frame connecting seat connected with the inner support rod is provided with an embedded groove for inserting one end of the outer support rod far away from the connecting frame connecting seat.

8. The ganged-fold structure of a manned foldable electric scooter of claim 1, wherein the steering mechanism comprises: a steering rod assembly, a connecting assembly and a connecting rod assembly; the utility model discloses a folding bicycle is characterized by comprising a folding bicycle body, a connecting assembly, a steering rod assembly, a connecting assembly and a connecting assembly, wherein the folding bicycle body is characterized in that two first wheels are arranged, the two first wheels are respectively connected with two ends of the connecting assembly in a rotating way, the two first wheels deviate from one side of the folding bicycle body and are provided with wheel swing arms which extend horizontally, the steering rod assembly penetrates through the middle of the connecting assembly, the bottom of the steering rod assembly is connected with the middle of the connecting assembly in a transmission way, two ends of the connecting assembly are respectively connected with the corresponding wheel swing arms in a rotating way, the steering rod assembly controls the orientation of the first wheels through the connecting assembly, and two ends of the connecting assembly are respectively connected with corresponding linkage mechanisms in a rotating way.

9. The ganged-fold structure of a manned foldable electric scooter of claim 8, wherein the connection assembly comprises: the folding piece is arranged on the outer side of the steering rod assembly, two ends of the folding piece are respectively and rotatably connected with a first connecting rod, one ends of the two first connecting rods, which are far away from the folding piece, are respectively and rotatably connected with a second connecting rod, the first wheel is rotatably connected with the second connecting rod, the side wall of the second connecting rod is rotatably connected with the linkage mechanism, the folding piece is further provided with a connecting limiting device for limiting the rotation of the first connecting rod, and one side of the second connecting rod, which is adjacent to the first connecting rod, is rotatably connected with the linkage mechanism.

10. The ganged-folding structure of a collapsible electric trailer as claimed in claim 9, wherein the connection limiting device comprises: the middle part of the pressing rod is provided with a pressing block, the pressing rod is arranged in the middle part of the folding piece in a sliding manner, and the top of the pressing rod is detachably connected with a pressing handle; limiting pins are respectively arranged in the two ends of the folding piece in a sliding mode, the pressing rods are located between the two limiting pins, one ends, opposite to the limiting pins, of the pressing rods are inclined planes, reset springs are respectively arranged in the two limiting pins, the limiting pins move towards the direction where the pressing rods are located through the reset springs, and pin holes which correspond to the limiting pins and are matched with the limiting pins are formed in the ends, connected with the folding piece, of the first connecting rods.

11. The ganged-fold structure of a manned foldable electric scooter of claim 8, wherein the linkage assembly comprises: the first transmission rod and locate first transmission rod both ends and respectively with the second transmission rod that first transmission rod rotated and is connected, two the second transmission rod is kept away from the one end rotation of first transmission rod is connected with the third transmission rod, the third transmission rod is kept away from the one end of second transmission rod with the wheel swing arm that corresponds rotates to be connected, still swing joint has the direction connecting rod at the middle part of first transmission rod, the direction connecting rod with the bottom fixed connection of direction lever subassembly.

12. The ganged-fold structure of a manned foldable electric scooter of claim 8, wherein the steering rod assembly includes: an outer rod, an inner rod and a turning rod; the turning rod penetrates through the first wheel assembly, the top of the turning rod is rotationally connected with the outer rod, the inner rod is slidably arranged in the outer rod, the top end of the inner rod is connected with a directional handle, a limiting assembly is arranged in one end, connected with the turning rod, of the outer rod, and the limiting assembly is used for limiting the outer rod to rotate relative to the turning rod.

13. The linkage folding structure of the foldable electric trailer capable of carrying people according to claim 12, wherein the direction handle is annular, folding grooves are respectively formed in two sides of the direction handle, a holding rod is rotatably connected to the same ends of the two folding grooves, one holding rod is rotatably arranged, a handle limiting bayonet lock is further arranged at one end of the holding rod connected with the folding grooves, the handle limiting bayonet lock is used for limiting when the holding rod is contained in the folding grooves or when the holding rod is horizontal relative to the direction handle, a plurality of control keys and a display device are further arranged on the direction handle, and the control keys and the display device are respectively electrically connected with the controller.

14. The linkage folding structure of the manned foldable electric scooter of claim 13, wherein the inner rod is provided with a telescopic bayonet, the outer rod is provided with a plurality of telescopic bayonet holes adapted to the telescopic bayonet, and the bottom inner wall of the steering handle is further provided with a telescopic button for controlling the telescopic bayonet holes to extend and retract.