CN116461586A

CN116461586A - Foldable electric trailer with wheels capable of sliding

Info

Publication number: CN116461586A
Application number: CN202310568322.5A
Authority: CN
Inventors: 罗海成; 张建华; 李秀清
Original assignee: Shenzhen Yunrui Iot Technology Co ltd
Current assignee: Shenzhen Yunrui Iot Technology Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-07-21

Abstract

The application relates to a collapsible electric trailer of wheel that can slide, include: folding the vehicle body and the control assembly; the rear end bottom of folding automobile body installs the follower, and folding automobile body's front end is connected with at least one bracing piece, and bracing piece sliding connection has drive assembly and accuse to the subassembly, and accuse is to the subassembly and drive assembly transmission connection, and drive assembly is equipped with the limit and moves the device, and control assembly locates on the folding automobile body, and drive assembly is connected with the control assembly electricity. By adopting the design, the front end of the folding car body is provided with the connecting piece and the supporting rod connected with the connecting piece in a rotating way, so that the supporting rod can be horizontally arranged in front of the connecting piece when needed, the folding car body can be folded in front of the folding car body when not needed to be used, the occupied space is reduced, meanwhile, the driving assembly is slidingly connected with the driving assembly below the connecting piece, the driving assembly can move in the supporting rod and the connecting piece, driving and dragging conversion are realized, the operation is simple, the use is convenient, the folding car body has various functions, the novelty is high, and the product competitiveness is improved.

Description

Foldable electric trailer with wheels capable of sliding

Technical Field

The invention relates to the technical field of folding trailers, in particular to a folding electric trailer with slidable wheels.

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.

When the traditional trailer is used, the manual dragging is needed, time and labor are wasted, and particularly, the traditional trailer is inconvenient to carry on an uphill; for this reason, the prior art has still designed a helping hand trailer, and patent number is CN202220922980.0 (helping hand trailer) it is through setting up electric wheel and controlling means on the automobile body, and electric helping hand effect when realizing the trailer promotes laborsaving, the convenience of trailer when using, and this kind of scheme still has the drawback, though can save strength to a certain extent, but its use still needs the manpower to pull just, can't realize manned, the function of driving through the position that changes the wheel.

Accordingly, there is a need to design a collapsible electric trailer with slidable wheels that overcomes one or more of the above-described deficiencies of the prior art.

Disclosure of Invention

The technical scheme adopted by the invention for achieving the technical purpose is as follows: a collapsible electric trailer having slidable wheels, comprising: folding the vehicle body and the control assembly; the folding bicycle is characterized in that a follower wheel is mounted at the bottom of the tail end of the folding bicycle body, at least one supporting rod is connected to the front end of the folding bicycle body, a driving assembly and a direction control assembly are connected in a sliding mode, the direction control assembly is in transmission connection with the driving assembly, the direction control assembly is used for controlling the driving assembly to rotate, the direction control assembly and the driving assembly slide along the supporting rod, a sliding limiting device used for limiting sliding is arranged on the driving assembly, and the driving assembly is electrically connected with the control assembly.

In a preferred embodiment, two sides of the front end of the folding bicycle body are respectively provided with a connecting piece, two supporting rods are respectively connected with the two connecting pieces in a rotating way, one end of each supporting rod connected with each connecting piece is provided with a rotation limiting device, and the rotation limiting devices are used for limiting the supporting rods to rotate relative to the connecting pieces.

In a preferred embodiment, the support rod is provided with a mounting boss adjacent to one end of the connecting piece, one end of the mounting boss is provided with a rotation shaft hole, one end of the mounting boss away from the rotation shaft hole is provided with a rotation limiting sliding groove, an outer sleeve is sleeved outside the connecting piece, one end of the outer sleeve adjacent to the support rod extends out of the end part of the connecting piece, the top of the outer sleeve also extends out of the top of the connecting piece, the end part of the support rod and the outer sleeve extend out of the end part of the connecting piece to be connected in a rotating manner, two sides of one end of the outer sleeve connected with the support rod are respectively provided with a rotation limiting groove hole, and the rotation limiting sliding groove corresponds to the rotation limiting groove hole after the support rod rotates by a preset angle relative to the connecting piece.

In a preferred embodiment, the outer sleeve is in arc transition with the top of one end connected with the supporting rod, a vertical stop block is arranged at a preset position of arc transition of the supporting rod, a protruding limiting pressing block is arranged in the middle of the installation boss, and a limiting needle rod matched with the limiting pressing block is further arranged in the middle of the top of the connecting piece.

In a preferred embodiment, the rotation limiting means comprises: the limiting rotation bayonet lock, limit rotate the driving lever, limit rotation bayonet lock is located limit changes the spout, limit rotation bayonet lock's middle part fixedly connected with limit rotation extension spring, limit rotation extension spring keep away from limit rotation bayonet lock one end with installation boss rotates to be connected, limit rotation driving lever is equipped with two, locates through driving lever axle rotation respectively outside the both sides of overcoat, limit rotation driving lever deviates from the one side of connecting piece is equipped with the driving lever extension spring, the both ends of driving lever extension spring respectively with limit rotation driving lever with driving lever axle fixed connection.

In a preferred embodiment, the bottom surfaces of the connecting piece and the supporting rod are respectively provided with an adaptive track groove, and the driving assembly comprises: a driving wheel and a sliding block; the two sliding blocks are integrally formed at the bottom of each sliding block, the sliding blocks are in sliding fit with the track grooves, the switching blocks are positioned outside the track grooves, unlocking pieces matched with the rotation limiting devices are respectively arranged at two sides of each switching block, and the direction control assembly is connected with the switching blocks and moves along with the movement of the switching blocks; the driving wheels are provided with two, each sliding block is rotationally connected with one driving wheel, a transmission piece is connected between the two driving wheels, and the direction control assembly is rotationally connected with the transmission piece and used for driving the two driving wheels to synchronously rotate.

In a preferred embodiment, the transmission member 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 corresponding the drive wheel rotates to be connected.

In a preferred embodiment, the movement limiting device comprises: the locking driving lever, the one end of locking driving lever with the front end of changeover piece rotates to be connected, the locking driving lever keeps away from the one end of changeover piece is equipped with the locking bayonet lock, the bracing piece is kept away from the locking hole has been seted up to the terminal surface of folding automobile body, the locking hole with the locking bayonet lock cooperatees.

In a preferred embodiment, the steering assembly comprises: the control rod, the bottom cover of control rod is equipped with the axle sleeve, the axle sleeve deviates from one side of folding automobile body is equipped with coupling assembling, coupling assembling be used for with drive assembly connects and supports the control rod, the bottom face of control rod still is connected with the swing arm, the swing arm with drive assembly rotates to be connected, the control rod passes through the swing arm drives drive assembly rotates, still the activity is equipped with the steering column in the control rod.

In a preferred embodiment, the connection assembly comprises: the folding piece extends out from one side of the shaft sleeve, two ends of the folding piece are respectively and rotatably connected with a first connecting rod, one end, away from the folding piece, of each first connecting rod is rotatably connected with the corresponding driving assembly, and a connecting limiting device used for limiting the rotation of the first connecting rods is further arranged on the folding piece.

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 two limiting pins, 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 matched with the limiting pins are formed in the ends, connected with the folding piece, of the two first connecting rods.

In a preferred embodiment, the steering rod is exposed at the top outside the control rod and is in a T shape, two holding rods are respectively connected to the two ends of the top of the steering rod in a rotating mode, a first sleeve is respectively arranged on the outer sides of one ends of the two holding rods connected with the steering rod in a sliding mode, a plurality of control keys are arranged on the top surface of the steering rod, the control keys are electrically connected with the control assembly, and a first limiting device is arranged on the outer sides of the top of the control rod and used for limiting the sliding of the steering rod.

In a preferred embodiment, a display screen is further arranged on the surface, facing the folding bodywork, of the top of the steering rod, and the display screen is electrically connected with the control assembly.

In a preferred embodiment, the two holding rods are provided with extension parts extending upwards and vertically at the ends far away from the connection with the direction rod, wherein a second sleeve is slidably arranged on one extension part, and a power-assisted shifting key is arranged on the other extension part and is electrically connected with the control assembly.

In a preferred embodiment, both the grips are provided with a grip, one of the grips is rotatably connected to the grip and electrically connected to the control assembly, and the grip rotates about the grip as a rotation center for controlling the speed of the folding bicycle body.

In a preferred embodiment, the bottom of the control rod is rotatably connected with a turning rod, the swing arm is fixedly connected with the bottom of the turning rod, the shaft sleeve is sleeved outside the turning rod, and a sliding sleeve is further arranged outside the control rod in a sliding manner.

In a preferred embodiment, the control assembly comprises: the device comprises a controller and at least one power supply electrically connected with the controller, wherein the driving component and the direction control component are respectively and electrically connected with the controller.

The beneficial effects of the invention are as follows: through set up the connecting piece and rotate the bracing piece of being connected with the connecting piece at the front end of folding automobile body, make the bracing piece can keep flat in the place ahead of connecting piece when needs, can fold up in the place ahead of folding automobile body when not needing to use, reduce occupation space, simultaneously in the below sliding connection drive assembly of connecting piece, make drive assembly can remove in the below of bracing piece and folding automobile body according to the demand, can be driving and drawing down the conversion, easy operation, convenient to use realizes a brand-new folding electric trailer, has multiple form multiple functions, the novelty is high, the appeal is big, promote product competitiveness.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

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

FIG. 3 is a schematic view showing the cooperation of the support rod, the connector and the rotation limiting device according to the present invention;

FIG. 4 is a schematic diagram of a driving assembly according to the present invention;

FIG. 5 is a schematic view of a connection assembly according to the present invention;

FIG. 6 is a cross-sectional view of the connection assembly of the present invention;

FIG. 7 is an exploded view of the steering assembly of the present invention;

FIG. 8 is a schematic view of another state of the steering assembly of the present invention;

FIG. 9 is a schematic view of the folded state of the steering assembly and the driving assembly of the present invention;

FIG. 10 is a schematic diagram of a towing situation in accordance with the present invention;

FIG. 11 is a schematic view of the whole folding state of the present invention;

FIG. 12 is a schematic block diagram of an electrical connection of the present invention;

fig. 13 is a functional block diagram of a control box of the present invention.

In the figure:

10. folding the vehicle body; 11. a follower wheel; 12. a connecting piece; 121. a jacket; 122. rotation limiting slot holes; 123. a stop block; 124. a limit needle bar;

20. a control assembly; 21. a controller; 22. a power supply;

30. a support rod; 31. a mounting boss; 32. a rotation shaft hole; 33. a rotation limiting chute; 34. limiting pressing blocks; 35. a track groove; 36. a locking hole;

40. a drive assembly; 41. a driving wheel; 42. a fork bracket; 43. a wheel fork shaft; 44. a transmission arm; 45. a slide block; 46. a transfer block; 47. an unlocking member;

50. a transmission member; 51. a first transmission rod; 52. a second transmission rod; 53. a third transmission rod; 54. a connecting screw;

60. a direction control assembly; 61. a control lever; 62. a shaft sleeve; 63. swing arms; 631. a transmission groove; 64. a steering lever; 641. a grip; 642. a first sleeve; 643. a control key; 644. a first limiting device; 645. a display screen; 646. an extension; 647. a second sleeve; 648. a power-assisted shifting key; 649. a handle sleeve; 65. a connection assembly; 651. a folding member; 652. a first connecting rod; 66. a pin hole; 67. turning the rod; 68. a sliding sleeve;

70. Connecting a limiting device; 71. pressing a pressing rod; 72. extruding a block; 73. pressing the handle; 74. a limiting pin; 75. a return spring;

80. a rotation limiting device; 81. rotation limiting bayonet lock; 82. a rotation limiting deflector rod; 83. a rotation limiting tension spring; 84. a deflector rod tension spring; 85. a dial shaft;

90. a movement limiting device; 91. a locking deflector rod; 92. and a locking bayonet lock.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention 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 invention. The present invention 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 invention, whereby the invention is not limited to the specific embodiments disclosed below.

In describing embodiments of the present invention, 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 invention 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 invention, 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 invention.

In embodiments of the present invention, 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 invention, "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 invention. 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 invention is not limited by the specific embodiments disclosed below

As shown in fig. 1 to 13, the present invention provides a foldable electric scooter with slidable wheels, comprising: folding the car body 10, the control assembly 20, the steering assembly 60; the rear end bottom of the folding bicycle body 10 is provided with a follower wheel 11, the front end of the folding bicycle body 10 is connected with at least one support rod 30, the support rod 30 is in sliding connection with a driving component 40 and a direction control component 60, the direction control component 60 is in transmission connection with the driving component 40, the direction control component 60 controls the driving component 40 to rotate, the direction control component 60 and the driving component 40 slide along the support rod 30, one surface of the driving component 40, which is away from the folding bicycle body 10, is provided with a movement limiting device 90 for limiting sliding, the control component 20 is arranged on the folding bicycle body 10, and the driving component 40 is electrically connected with the control component 20;

specifically, the folding cart body 10 is a foldable cart in the market, the rear end of the folding cart body 10 is provided with a follower wheel 11, the follower wheel 11 is a fixed wheel and cannot horizontally rotate, the front end of the folding cart body 10 is rotationally connected with a support rod 30, a driving component 40 and a steering component 60 which can slide relative to the support rod 30 are arranged on the support rod 30, wherein the steering component 60 is used for controlling the steering of the driving component 40, the driving component 40 is used for driving the folding cart body 10 to run, when people need to carry or drive, the driving component 40 can slide between the folding cart body 10 and the support rod 30 according to the requirement, the driving component 40 can slide to one end, far away from the folding cart body 10, of the support rod 30, at the moment, the steering component 60 can slide to the front end of the support rod 30 along with the driving component 40, meanwhile, the front end of the folding cart body 10 can be detachably installed with the support rod 30, and a user can sit on the cart or stand on the support rod 30 through the setting of the support rod 30 to realize the functions of carrying and driving through the steering component 60, wherein the driving component 40 slides to avoid influencing the normal use, the driving component 40 is arranged on the driving component 40, and a sliding device 90 is used for limiting the driving component 40 to move normally, and a driving device 90 can not move normally when the driving component 40 is used to be limited to move; when the driving function is not needed, the driving assembly 40 can be slid under the folding bicycle body 10 again, meanwhile, the supporting rod 30 is lifted up and vertically arranged at the front end of the folding bicycle body 10, the steering assembly 60 is also close to the front end of the folding bicycle body 10, and the steering assembly 60 can be used for towing; a control assembly 20 is also provided on the folding body 10, the control assembly 20 being used to provide electrical power to the drive assembly 40 and to control the operation of the drive assembly 40.

Further, in this embodiment, two sides of the front end of the folding cart body 10 are respectively provided with a connecting piece 12, two support rods 30 are respectively provided with two support rods 30 which are rotatably connected with two connecting pieces 12, one end of each support rod 30 connected with the connecting piece 12 is provided with a rotation limiting device 80, and the rotation limiting device 80 is used for limiting the rotation of the support rod 30 relative to the connecting piece 12;

specifically, as shown in fig. 2, two sides of the bottom of the front end of the folding cart body 10 are respectively fixed or integrally formed with connecting pieces 12, each connecting piece 12 is respectively connected with a supporting rod 30 through a rotating shaft in a rotating way, the supporting rods 30 can vertically rotate relative to the connecting pieces 12, in order to ensure the stability of the supporting rods 30 in use, one end, connected with the connecting pieces 12, of each supporting rod 30 is provided with a rotation limiting device 80 matched with the connecting pieces 12, the supporting rods 30 can be fixed through the rotation limiting devices 80, and when the supporting rods 30 are horizontally placed relative to the connecting pieces 12, the supporting rods 30 can be fixed through the rotation limiting devices 80, so that the supporting rods 30 are prevented from rotating during use and normal use is influenced.

Further, an installation boss 31 is disposed at one end of the supporting rod 30 adjacent to the connecting piece 12, a rotation shaft hole 32 is disposed at one end of the installation boss 31, a rotation limiting chute 33 is disposed at one end of the installation boss 31 far away from the rotation shaft hole 32, an outer sleeve 121 is sleeved outside the connecting piece 12, one end of the outer sleeve 121 adjacent to the supporting rod 30 extends out of the end of the connecting piece 12, the top of the outer sleeve 121 also extends out of the top of the connecting piece 12, the end of the supporting rod 30 is rotatably connected with one end of the outer sleeve 121 extending out of the connecting piece 12, rotation limiting slots 122 are respectively disposed at two sides of one end of the outer sleeve 121 connected with the supporting rod 30, and after the supporting rod 30 rotates by a preset angle relative to the connecting piece 12, the rotation limiting chute 33 corresponds to the rotation limiting slots 122;

Specifically, as shown in fig. 3, a mounting boss 31 is disposed on a top surface of one end of the supporting rod 30 connected to the connecting piece 12, a rotating shaft hole 32 is disposed on one end of the mounting boss 31 adjacent to the connecting piece 12, and a rotating shaft is disposed on the connecting piece 12, so that the supporting rod 30 is rotationally connected to the connecting piece 12 through the cooperation of the rotating shaft and the rotating shaft hole 32, meanwhile, when the supporting rod 30 is horizontally placed relative to the connecting piece 12, a bottom surface of the supporting rod 30 is flush with a bottom surface of the connecting piece 12, an outer sleeve 121 is fixedly sleeved on an outer side of the connecting piece 12, two sides of one end of the outer sleeve 121 adjacent to the supporting rod 30 extend out of an end of the connecting piece 12, two sides of the top of the outer sleeve 121 extend out of the top of the connecting piece 12, an end of the supporting rod 30 is disposed in one end of the outer sleeve 121 extending out of the connecting piece 12, and the rotating shaft is disposed in one end of the outer sleeve 121 extending out of the connecting piece 12, so that when the supporting rod 30 is horizontally placed relative to the connecting piece 12, a bottom surface of the supporting rod 30 is flush with the bottom surface of the connecting piece 12, a limited rotating chute 33 is further disposed at one end of the mounting boss 31 far from the rotating shaft hole 32, two sides of the end of the supporting rod 12 are respectively disposed on two sides of the outer sleeve 121, and the two sides of the end of the supporting rod 12 are respectively connected to the limited rotating chute 33 are correspondingly in a limited state of the rotating chute, and the limited rotating chute is in a state of the limited rotating chute and the limited chute is in a state of the limited rotating chute when the limited chute is in a state of the rotating and the limited chute is in a state and the limited rotating is correspondingly is in a state.

It should be noted that the rotation limiting sliding groove 33 may be "one" or "L" shaped, and is preferably "L" shaped for improving convenience of use in this application.

Further, the top of one end of the outer sleeve 121 connected with the supporting rod 30 is in arc transition, a vertical stop block 123 is arranged at a preset position of the arc transition of the supporting rod 30, a raised limit pressing block 34 is arranged in the middle of the mounting boss 31, and a limit needle rod 124 matched with the limit pressing block 34 is further arranged in the middle of the top of the connecting piece 12;

specifically, as shown in fig. 2, the top of the outer sleeve 121 is in arc transition, and two sides of the top of the outer sleeve 121 are respectively provided with a vertical stop block 123, and the stop block 123 is positioned at a position of the limit rotation chute 33 when the support rod 30 rotates relative to the connecting piece 12 and is in a vertical shape; the middle part of the installation boss 31 is fixed or integrally formed and provided with a limit pressing block 34 protruding out of the top surface of the installation boss 31, and meanwhile, the middle part of the top of the connecting piece 12 is also provided with a limit needle bar 124, when the support bar 30 rotates relative to the connecting piece 12 and is in a vertical state, the limit pressing block 34 rotates along with the support bar 30, contacts with the limit needle bar 124 and extrudes the limit needle bar 124, so that the end part of the limit needle bar 124 penetrates into the connecting piece 12 for fixing the driving assembly 40 and preventing the movement of the driving assembly.

It should be noted that, the limiting needle bar 124 is provided with a spring, so that after the limiting press block 34 is not pressed, the limiting needle bar 124 can retract from the connecting piece 12 under the action of the spring.

Further, the rotation limiting device 80 includes: the rotation limiting bayonet lock 81 and the rotation limiting shift rod 82, wherein the rotation limiting bayonet lock 81 is positioned in the rotation limiting chute 33, the middle part of the rotation limiting bayonet lock 81 is fixedly connected with a rotation limiting tension spring 83, one end of the rotation limiting tension spring 83, which is far away from the rotation limiting bayonet lock 81, is rotationally connected with the mounting boss 31, two rotation limiting shift rods 82 are respectively arranged outside two sides of the outer sleeve 121 through shift rod shafts 85 in a rotating manner, one surface of the rotation limiting shift rod 82, which is far away from the connecting piece 12, is provided with shift rod tension springs 84, and two ends of each shift rod tension spring 84 are respectively fixedly connected with the rotation limiting shift rod 82 and the shift rod shaft 85;

specifically, as shown in fig. 3, the rotation limiting bayonet lock 81 is movably disposed in the rotation limiting chute 33, and is rotatably connected with the rotation limiting tension spring 83 in the middle of the rotation limiting bayonet lock 81, the other end of the rotation limiting tension spring 83 is rotatably connected with the mounting boss 31, and the rotation limiting tension spring 83 is located outside one side of the rotation limiting chute 33, so that the rotation limiting bayonet lock 81 always moves to the position where the rotation limiting tension spring 83 is located under the pulling of the rotation limiting tension spring 83, when the support rod 30 and the connecting piece 12 are in a flat state, the rotation limiting chute 33 corresponds to the rotation limiting slot 122, and at the moment, the rotation limiting bayonet lock 81 enters the rotation limiting slot 122 from the rotation limiting chute 33 under the pulling of the rotation limiting tension spring 83, so that the support rod 30 is fixed through the cooperation of the rotation limiting bayonet lock 81 and the rotation limiting slot 122; the rotation limiting deflector 82 is provided with two rotation limiting deflector rods 82, the two rotation limiting deflector rods 82 are respectively arranged on two sides of the outer sleeve 121 in a rotating way through the deflector rod shaft 85, the top ends of the rotation limiting deflector rods 82 correspond to the rotation limiting slotted holes 122, namely, the movement track of the top parts of the rotation limiting deflector rods 82 passes through the positions of the rotation limiting slotted holes 122, when the rotation limiting deflector rods 82 are rotated in a stirring way, the rotation limiting deflector rods 82 rotate by taking the deflector rod shaft 85 as the circle center, the movement track of the top parts of the rotation limiting deflector rods 82 are arc-shaped, if the rotation limiting deflector rods rotate anticlockwise, the movement track of the top parts of the rotation limiting deflector rods 82 passes through the rotation limiting slotted holes 122 in a small angle, and if the rotation limiting bayonet lock 81 is positioned in the rotation limiting deflector rods 122, the movement track is pushed by the rotation limiting deflector rods 82 to enter the rotation limiting deflector grooves 33, so that unlocking is realized; in order to realize that the rotation limiting poking rod 82 can reset automatically after rotating, and is convenient for unlocking of the next time, a poking rod tension spring 84 is arranged on one surface of the rotation limiting poking rod 82, which is away from the outer sleeve 121, one end of the poking rod tension spring 84 is fixedly connected with the top of the rotation limiting poking rod 82, the other end of the poking rod tension spring 84 is fixedly connected with a poking rod shaft 85, the rotation limiting poking rod 82 can return automatically after losing the external force applied by the outside through the tension of the poking rod tension spring 84, wherein the initial position of the rotation limiting poking rod 82 is inclined in the clockwise direction, namely, the top of the rotation limiting poking rod 82 is positioned at the rear side of the rotation limiting slotted hole 122, so that the rotation limiting poking rod 82 can rotate a small distance when rotating anticlockwise, the rotation limiting poking pin 81 can be pushed out of the rotation limiting poking hole 122, and meanwhile, in order to avoid the rotation limiting poking pin 81 after being pushed out of the rotation limiting poking hole 122, the rotation limiting sliding groove 33 is preferably arranged to be L-shaped under the pulling force of the rotation limiting tension spring 83, meanwhile, the length of the rotation limiting deflector 82 needs to be controlled to jack up the rotation limiting bayonet 81 when the rotation limiting deflector 82 is at a preset angle, namely, the rotation limiting deflector 82 is positioned below the rotation limiting bayonet 81 at the preset angle, so that the rotation limiting deflector 82 pushes the rotation limiting bayonet 81 out of the rotation limiting groove 122 when rotating anticlockwise, and after the preset angle, the length of the rotation limiting bayonet 81 is limited to be jacked into the top of the rotation limiting sliding groove 33, and at the moment, the rotation limiting bayonet 81 cannot fall down due to the pulling force of the rotation limiting tension spring 83, thereby preventing the rotation limiting bayonet 81 from being pulled back after being pushed out of the rotation limiting groove 122; when the supporting rod 30 is vertical relative to the connecting piece 12, the rotation limiting bayonet lock 81 is driven to synchronously rotate by the vertical rotation of the supporting rod 30 and is contacted with the stop block 123 on the outer sleeve 121 after a preset angle, the rotation limiting bayonet lock 81 is pushed out of the top of the rotation limiting chute 33 under the stop of the stop block 123, and is pulled into the bottom of the rotation limiting chute 33 to be contacted with the top wall of the outer sleeve 121 under the tension of the rotation limiting tension spring 83, when the supporting rod 30 rotates relative to the connecting piece 12 and is flush with the connecting piece 12, the rotation limiting bayonet lock 81 loses the limit of the outer sleeve 121 due to the correspondence of the rotation limiting chute 33 and the rotation limiting slot 122, and automatically enters the rotation limiting slot 122 to form fit under the tension of the rotation limiting tension spring 83.

Further, in this embodiment, the bottom surfaces of the connecting piece 12 and the supporting rod 30 are respectively provided with an adapted track groove 36, and the driving assembly 40 includes: a drive wheel 41, a slider 45; the two sliding blocks 45 are arranged, the bottom of each sliding block 45 is integrally provided with an adapter block 46, the sliding blocks 45 are in sliding fit with the track grooves 36, the adapter blocks 46 are positioned outside the track grooves 36, unlocking pieces 47 which are used for being matched with the rotation limiting devices 80 are respectively arranged on two sides of each adapter block 46, and the direction control assembly 60 is connected with the adapter blocks 46 and moves along with the movement of the corresponding adapter blocks 46; the two driving wheels 41 are arranged, each sliding block 45 is rotationally connected with one driving wheel 41, a transmission piece 50 is connected between the two driving wheels 41, and the direction control assembly 60 is rotationally connected with the transmission piece 50 and is used for driving the two driving wheels 41 to synchronously rotate;

specifically, as shown in fig. 3, the bottom surfaces of the connecting piece 12 and the supporting rod 30 are respectively provided with a track groove 36 for sliding the driving component 40, and the track groove 36 of the connecting piece 12 is matched with the track groove 36 of the supporting rod 30, so that the connecting piece 12 and the supporting rod 30 can slide freely between the connecting piece 12 and the supporting rod when the connecting piece and the supporting rod are in a flush state, wherein the driving component 40 comprises: a pair of driving wheels 41 and a pair of sliders 45; each driving wheel 41 is a wheel with a motor inside, such as a wheel of an electric bicycle, an electric motorcycle, an electric wheelchair, etc., a fork support 42 is further arranged on the outer side of the driving wheel 41, the fork support 42 is used for fixing the driving wheel 41, and a fork shaft 43 is arranged on the top of the fork support 42; the sliding blocks 45 are matched with the track grooves 36, the sliding blocks 45 are positioned in the track grooves 36 and can freely slide in the track grooves 36, a rotating block 46 is arranged at the bottom of each sliding block 45 in a welding or integrated mode, the rotating block 46 is positioned outside the track grooves 36, the driving wheels 41 are rotationally connected with the rotating block 46 through a wheel fork shaft 43, the wheel fork support 42 can horizontally rotate relative to the rotating block 46, the displacement of the sliding blocks 45 can drive the driving wheels 41 to synchronously displace, the width of the rotating block 46 is larger than that of the sliding blocks 45, the top surfaces of the two sides of the width direction of the rotating block 46 are respectively provided with a convex unlocking piece 47, the unlocking pieces 47 are used for being matched with the rotating limiting shifting rod 82, when the sliding blocks 45 slide to the supporting rods 30 from the inside of the connecting pieces 12, the unlocking pieces 47 can touch the bottom of the rotating limiting shifting rod 82 to push the rotating limiting shifting rod 82 to rotate clockwise, and the top of the rotating limiting shifting rod 82 can be enabled to move in the direction far away from the rotating expense due to clockwise rotation until the rotating limiting shifting rod 82 completely loses contact, the rotating limiting shifting rod 82 can not contact with the rotating limiting shifting rod 81, the rotating limiting shifting rod 81 and the rotating limiting shifting rod 81, and the rotating limiting shifting rod 82 can not contact with a rotating limiting shifting rod 81, and the rotating rod 82 after the limiting shifting rod 82 is reset by a tension spring 84; when the sliding block 45 moves from the inside of the supporting rod 30 to the connecting piece 12, at this time, the unlocking piece 47 can push the rotation limiting bayonet lock 82 to rotate anticlockwise and contact with the rotation limiting bayonet lock 81, and push the rotation limiting bayonet lock 81 to be separated from the rotation limiting slot 122, at this time, the unlocking piece 47 is not completely out of contact with the rotation limiting bayonet lock 82, and along with the movement of the unlocking piece 47, the rotation limiting bayonet lock 82 enters a preset angle, at this time, the head of the rotation limiting bayonet lock 82 is gradually located below the rotation limiting bayonet lock 81 along with the rotation, the rotation limiting bayonet lock 81 is jacked up in the rotation process, the rotation limiting bayonet lock 81 enters the top of the rotation limiting chute 33, then the rotation limiting bayonet lock 82 is completely separated from the contact with the rotation limiting bayonet lock 81, and the unlocking piece 47 is also separated from the contact with the rotation limiting bayonet lock 82, at this time, the rotation limiting bayonet lock 82 is automatically reset under the acting force of the push rod spring 84, at this time, and the rotation limiting bayonet lock 81 and the rotation limiting slot 122 are gradually located below the rotation limiting bayonet lock 81, so that the supporting rod 30 is lifted up to be in a state of being in a straight line with respect to the connecting piece 12, and the operation is simplified, and the linkage is easy to realize; the direction control assembly 60 is connected with one surface of the two adapter blocks 46 opposite to each other, and the direction control assembly 60 moves along with the movement of the adapter blocks 46; a transmission member 50 is further arranged between the two driving wheels 41, meanwhile, a transmission arm 44 which extends horizontally is further arranged at the top of one surface of each wheel fork bracket 42, which is away from the folding vehicle body 10, two ends of the transmission member 50 are respectively and rotatably connected with the corresponding transmission arm 44, and the middle part of the transmission member 50 is rotatably connected with the direction control assembly 60, so that the transmission member 50 can be driven to horizontally move when the direction control assembly 60 rotates, and the transmission member 50 drives the two driving wheels 41 to rotate rightwards or leftwards; wherein the follower wheel 11 of the folding car body 10 can also be replaced by a driving wheel 41 according to the requirement.

It should be noted that, in order to avoid excessive friction between the unlocking member 47 and the rotation limiting lever 82, abrasion occurs due to friction, which affects subsequent use, the unlocking member 47 may be a ball or a bearing, so as to reduce the friction coefficient with the rotation limiting lever 82 and prolong the service life.

Further, the transmission member 50 includes: the first transmission rod 51 and the second transmission rods 52 which are arranged at two ends of the first transmission rod 51 and are respectively connected with the first transmission rod 51 in a rotating way, one ends of the two second transmission rods 52 far away from the first transmission rod 51 are connected with a third transmission rod 53 in a rotating way, and one ends of the third transmission rods 53 far away from the second transmission rods 52 are connected with the corresponding driving wheels 41 in a rotating way;

specifically, as shown in fig. 4 and 9, two ends of the first transmission rod 51 are respectively connected with a second transmission rod 52 in a rotating manner by a rotating shaft, one ends of the two second transmission rods 52 far away from the first transmission rod 51 are respectively connected with a third transmission rod 53 in a rotating manner by a rotating shaft, one ends of the two third transmission rods 53 far away from the second transmission rods 52 are respectively connected with corresponding transmission arms 44 in a rotating manner, wherein the first transmission rod 51, the second transmission rod 52 and the third transmission rod 53 can rotate vertically, and the first transmission rod 51 is connected with a direction control assembly 60 in a rotating manner; when the first transmission rod 51, the second transmission rod 52 and the third transmission rod 53 are in a horizontal state, the rotation of the direction control assembly 60 drives the first transmission rod 51 to move left and right, drives the second transmission rod 52 and the third transmission rod 53 to move left and right, and the third transmission rod 53 drives the transmission arm 44 to swing left or right, so that the wheel fork bracket 42 is driven to rotate around the wheel fork shaft 43, and further drives the two driving wheels 41 to rotate left and right; when the first transmission rod 51 receives an upward force, the second transmission rod 52 can be driven to rotate vertically relative to the third transmission rod 53.

It should be noted that, since the second transmission rod 52 needs to rotate relative to the first transmission rod 51 and the third transmission rod 53, both ends of the second transmission rod 52 are arc-shaped to enable the second transmission rod 52 to rotate, but in order to avoid the sinking between the second transmission rod 52 and the first transmission rod 51 and the third transmission rod 53, one end of the second transmission rod 52 connected to the first transmission rod 51 and the third transmission rod 53 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 52, 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 52 rotates upward in a horizontal state, the rounded corner is located at the upper side, and the lower side is located at a corner, so that the sinking is avoided by limitation of the corner, wherein the rounded corner positions of both ends of the second transmission rod 52 are opposite, if the second transmission rod 52 rotates relative to the first transmission rod 51 and the third transmission rod 53, and the rounded corner is located at the upper side of the second transmission rod 52, if the second transmission rod 53 rotates downward relative to the first transmission rod 51.

Further, in this embodiment, the movement limiting device 90 includes: the locking shift lever 91, one end of the locking shift lever 91 is rotatably connected with the front end of the adapter block 46, one end of the locking shift lever 91, which is far away from the adapter block 46, is provided with a locking bayonet lock 92, one end surface of the support rod 30, which is far away from the folding bicycle body 10, is provided with a locking hole 36, and the locking hole 36 is matched with the locking bayonet lock 92;

Specifically, as shown in fig. 4, one end of the locking lever 91 is rotatably disposed on an end face of the adapter block 46, which is far away from the folding bodywork 10, by means of a rotation shaft, a locking bayonet lock 92 is mounted at the other end of the locking lever 91, the locking bayonet lock 92 is a self-contained spring, the tail is a self-contained bayonet lock with a pull ring, the head of the locking bayonet lock 92 extends out under the top force of the spring, meanwhile, a locking hole 36 matched with the locking bayonet lock 92 is formed at an end face of the support rod 30, which is far away from the connecting piece 12, of the driving assembly 40, when the driving assembly 40 moves to an end of the support rod 30, which is far away from the connecting piece 12, the locking bayonet lock 92 can be made to be in a vertical shape by rotating the locking bayonet lock 91, the locking bayonet lock 92 corresponds to the locking hole 36, the head of the locking bayonet lock 92 is inserted into the locking hole 36, so that the locking bayonet lock 91 is prevented from rotating, at this moment, the driving assembly 40 is limited by the locking bayonet lock 91 due to the cooperation of the locking bayonet lock, wherein, the front end of the slide block 45 is also provided with the locking hole 36, when the locking bayonet lock 92 extends into the end of the slide block 45, and the slide block 45 can be prevented from sliding into the end 45.

Further, in this embodiment, the direction control assembly 60 includes: the control rod 61, a shaft sleeve 62 is sleeved at the bottom of the control rod 61, a connecting component 65 is arranged at one side of the shaft sleeve 62 away from the folding vehicle body 10, the connecting component 65 is used for being connected with the driving component 40 to support the control rod 61, a swing arm 63 is further connected to the bottom end surface of the control rod 61, the swing arm 63 is rotationally connected with the driving component 40, the control rod 61 drives the driving component 40 to rotate through the swing arm 63, and a steering rod 64 is further movably arranged in the control rod 61;

Specifically, as shown in fig. 7, a shaft sleeve 62 is sleeved at the bottom of the control rod 61, the shaft sleeve 62 and the control rod 61 can be connected together through a bearing, so that the control rod 61 can rotate horizontally relative to the shaft sleeve 62, the shaft sleeve 62 penetrates out from the bottom of the control rod 61, a swing arm 63 is fixedly connected to the penetrated end, a transmission groove 631 is formed in one end, far away from the control rod 61, of the swing arm 63, a connecting screw 54 is arranged at the bottom surface of the first transmission rod 51, the connecting screw 54 is positioned in the transmission groove 631, when the swing arm 63 rotates under the driving of the control rod 61, the connecting screw 54 drives the first transmission rod 51 to transversely move left and right, and meanwhile, the connecting screw 54 can slide in the transmission groove 631, so that the swing arm 63 can smoothly drive the first transmission rod 51 to transversely move, a direction rod 64 is further arranged in the control rod 61, and the direction rod 64 can control rod 61 can synchronously rotate, so that the control rod 61 is driven to rotate through the direction rod 64.

Further, the connection assembly 65 includes: the folding member 651, the folding member 651 extends from one side of the shaft sleeve 62, two ends of the folding member 651 are respectively rotatably connected with a first connecting rod 652, one ends of the two first connecting rods 652, which are far away from the folding member 651, are respectively rotatably connected with the driving assembly 40, and the folding member 651 is further provided with a connection limiting device 70 for limiting the rotation of the first connecting rods 652;

Specifically, as shown in fig. 5 and 9, the folding member 651 extends from one side of the shaft sleeve 62, the folding member 651 is located on one side of the shaft sleeve 62 away from the folding vehicle body 10, two ends of the folding member 651 are respectively connected with a first connecting rod 652 in a rotating manner through a rotating shaft, one ends of the two first connecting rods 652, which are far away from the folding member 651, are respectively connected with the adapter 46 in a rotating manner through the rotating shaft, when the control rod 61 receives upward force, the shaft sleeve 62 is driven to move upwards, the shaft sleeve 62 drives the folding member 651 to move upwards, at the moment, the first connecting rods 652 are vertically rotated relative to the folding member 651, meanwhile, the swing arm 63 drives the first transmission rod 51 to be lifted, so that the second transmission rod 52 is vertically rotated relative to the first transmission rod 51, the vertical rotation of the second transmission rod 52 and the first connecting rod 652 drives the two supporting rods 30 to be close to each other, at this time, the folding car body 10 is folded, and finally the folding state can be completed by rotating the two supporting rods 30 vertically, because the folding member 651 is freely rotationally connected with the first connecting rod 652, in order to avoid the jumping of the folding member 651 caused by the driving of the control rod 61 in the use process, the normal use is influenced, the middle part of the folding member 651 is provided with the connection limiting device 70, and the connection limiting device 70 is used for limiting the rotation of the first connecting rod 652 relative to the folding member 651, thereby ensuring that the rotation of the first connecting rod 652 can be avoided when needed, and ensuring the use safety and the use experience.

It should be noted that, because the first connecting rod 652 is rotationally connected to the folding member 651 and the adapter 46, in order to avoid the sinking condition of the first connecting rod 652 in normal use, rounded corners are respectively disposed at two ends of the first connecting rod 652, and the rounded corners are disposed at an upper side or a lower side of each end of the first connecting rod 652, and the positions are related to the rotation direction of the first connecting rod 652, if the first connecting rod 652 rotates downward relative to the folding member 651 in a horizontal state, the rounded corners at the end are at the lower side, and the first connecting rod 652 rotates upward relative to the adapter 46 in a horizontal state, the rounded corners at the end are at the upper side.

Further, the connection limiting device 70 includes: a pressing rod 71, wherein a pressing block 72 is arranged in the middle of the pressing rod 71, the pressing rod 71 is slidably arranged in the middle of the folding piece 651, and a pressing handle 73 is detachably connected to the top of the pressing rod 71; limiting pins 74 are respectively and slidably arranged in two ends of the folding member 651, the pressing rod 71 is positioned between the two limiting pins 74, opposite ends of the two limiting pins 74 are inclined planes, reset springs 75 are respectively arranged in the two limiting pins 74, the limiting pins 74 move towards the direction of the pressing rod 71 through the reset springs 75, and pin holes 66 matched with the limiting pins 74 are formed in one ends of the two first connecting rods 652 connected with the folding member 651;

Specifically, as shown in fig. 6, a containing cavity (not shown in the drawing) is formed in the middle part of the folding member 651, a pressing rod 71 is slidably arranged in the containing cavity, the top of the pressing rod 71 is located outside the folding member 651, a pressing handle 73 is connected to the top of the pressing rod 71 through a fastener such as a screw, so that a user can conveniently press the pressing rod from the outside, an integrally formed pressing block 72 is further arranged in the middle part of the pressing rod 71, the pressing block 72 moves up and down in the containing cavity along with the vertical movement of the pressing rod 71, limiting pins 74 are slidably arranged in two ends of the folding member 651 respectively, the pressing rod 71 is located between the two limiting pins 74, opposite sides of the two limiting pins 74 are inclined planes which incline upwards respectively, and when the pressing block 72 moves downwards, two ends of the pressing block 72 are in contact with one end of the inclined plane of the limiting pins 74 and press the limiting pins 74, and the limiting pins 74 are extruded outwards by the gradient of the inclined plane; meanwhile, pin holes 66 matched with the limiting pins 74 are respectively formed in the middle parts of one ends of the two first connecting rods 652 and the folding piece 651 which are rotationally connected, when the two limiting pins 74 are extruded outwards by the extrusion block 72, the two limiting pins 74 are inserted into the pin holes 66, so that the folding piece 651 and the first connecting rods 652 are fixed together through the limiting pins 74, the first connecting rods 652 are prevented from rotating and arching relative to the folding piece 651 when the first connecting rods 652 are not needed, the first connecting rods 652 and the folding piece 651 are rotationally connected through rotating shafts, and in order to prevent the rotating shafts from forming movement interference on the limiting pins 74, slotted holes are formed in the limiting pins 74, and the rotating shafts are located in the slotted holes and can slide in the slotted holes, so that the limiting pins 74 can move between the folding piece 651 and the first connecting rods 652 without being limited by the rotating shafts; in order to improve the use convenience of the connection limiting device 70, two limiting pins 74 are respectively provided with a reset spring 75, one end of each reset spring 75 is connected with each limiting pin 74, and the other end of each reset spring 75 is connected with the corresponding rotating shaft, so that the limiting pins 74 can be pushed to the inside of the recovery folding piece 651 under the acting force of the reset springs 75 after the extrusion of the extrusion blocks 72 is lost, and the first connecting rod 652 can be rotated at the moment to be separated from the plugging state with the first connecting rod 652, and meanwhile, the next connection is facilitated.

It should be noted that, when the extrusion block 72 moves down to the limit position, the contact with the limiting pin 74 is not separated, so that the limiting pin 74 is prevented from being influenced by the reset spring 75 after the limit of the extrusion block 72 is lost, so that the interval distance between the two limiting pins 74 is short, the extrusion block 72 is positioned below the two limiting pins 74, the situation that the pressing rod 71 cannot be pulled up occurs, preferably, when the extrusion block descends to the limit position, the end parts of the two limiting pins 74 are propped against the top of the side wall of the extrusion block 72, so that the contact distance between the limiting pin 74 and the extrusion block 72 is prolonged when the extrusion block ascends, and the situation that the limiting pin 74 is separated from the pin hole 66 due to the limit of the extrusion block 72 when the extrusion block 72 is lost due to vibration is reduced in normal use; meanwhile, a rod cover is installed at the top of the accommodating cavity through a fastener such as a screw, after the pressing rod 71 is placed in the accommodating cavity, the pressing rod 71 is prevented from being separated from the accommodating cavity through the rod cover, and the folding member 651 is integrally formed, so that the folding member is not limited by the spring when the rotating shaft is placed, and mounting slots (not shown in the figure) are respectively formed at the tops of the two ends of the folding member 651, and the spring is extruded through an external tool to be separated from the mounting position of the rotating shaft.

Further, in this embodiment, the top of the steering rod 64 exposed outside the control rod 61 is in a T shape, two ends of the top of the steering rod 64 are respectively rotatably connected with a holding rod 641, the outer sides of one ends of the two holding rods 641 connected with the steering rod 64 are respectively slidably provided with a first sleeve 642, the top surface of the steering rod 64 is provided with a plurality of control keys 643, the plurality of control keys 643 are electrically connected with the control assembly 20, and the outer sides of the top of the control rod 61 are provided with a first limiting device 644 for limiting the sliding of the steering rod 64;

specifically, as shown in fig. 7, the steering rod 64 is slidably disposed in the control rod 61, the steering rod 64 may extend out of the control rod 61 when needed to adjust the use height, one end of the steering rod 64 extending out of the control rod 61 is in a T shape, two holding rods 641 are respectively connected to two ends of the top of the steering rod 64 by rotating through rotating shafts, the two holding rods 641 may vertically rotate relative to the steering rod 64 when in use, and the two holding rods 641 may be horizontally rotated relative to the steering rod 64 when not in use, so that the two holding rods 641 may be vertically rotated; in order to realize that the holding rod 641 can be fixed with the direction rod 64 when in a horizontal state and prevent rotation, a first sleeve 642 is sleeved outside one end of the direction rod 64 connected with the holding rod 641, the first sleeve 642 slides to a joint position connected with the first sleeve 642, two ends of the first sleeve 642 respectively encircle the direction rod 64 and the holding rod 641, and the fixing of the direction rod 64 and the holding rod 641 is realized, wherein in order to prevent the first sleeve 642 from sliding by itself in the use process, a spring is connected to one end of the first sleeve 642 facing away from the holding rod 641 and is always pushed to the direction of the holding rod 641 by the acting force of the spring, so that even if the first sleeve 642 slides due to unintentional touching, the first sleeve 642 can reset by itself under the pushing force of the spring; meanwhile, a plurality of control keys 643 are further arranged on the top surface of the middle part of the steering rod 64, the plurality of control keys 643 are electrically connected with the control assembly 20 through wires, and the wires can be led out from the inside of the control rod 61 to avoid the wires from being exposed; the control keys 643 include, but are not limited to, a forward/reverse key, a driving/towing switch key, a lamp on key, a horn key, a turn signal control key, etc., and the control principle can refer to the key control of the existing electric bicycle; because the direction rod 64 is slidably connected with the control rod 61, in order to avoid that the direction rod 64 automatically slides into the control rod 61 again due to gravity when extending out of the control rod 61, a first limiting device 644 is further arranged at the top of the control rod 61, a plurality of clamping holes matched with the first limiting device 644 are formed in the outer side wall of the direction rod 64 at intervals, and the length of the direction rod 64 extending out of the control rod 61 is fixed through the cooperation of the first limiting device 644 and the clamping holes, wherein the first limiting device 644 and the locking clamping pin 92 have the same structure.

It should be noted that, the control key 643 may also adopt a resistive key manner, in this manner, the setting of the wire core of the wire may be reduced, each key of the resistive key has a different resistance value, when the corresponding key is pressed, a corresponding resistance value is generated, and is transmitted to the control component 20 through the wire, and the control component 20 receives the resistance signal, and identifies the key function according to the resistance value and performs corresponding control.

Further, a display 645 is further disposed on a surface of the top of the steering rod 64 facing the folded car body 10, and the display 645 is electrically connected to the control assembly 20;

specifically, a display 645 is further disposed on top of the steering rod 64, and the display 645 is electrically connected to the control unit 20 for displaying the current running speed, running mode, power of the power source 22, etc., and the display 645 faces the direction in which the folding car body 10 is located.

Further, two of the holding rods 641 are provided with extending parts 646 extending vertically upwards away from one end connected with the direction rod 64, wherein a second sleeve 647 is slidingly arranged on one extending part 646, and an assisting shifting key 648 is arranged on the other extending part 646, and the assisting shifting key 648 is electrically connected with the control assembly 20;

Specifically, as shown in fig. 8, in order to facilitate the use of the steering rod 64 in the trailer state, an extension part 646 extending vertically upwards is further provided at the end of the holding rod 641 far from the end connected to the steering rod 64, when the two holding rods 641 are rotated upwards, the extension parts 646 on the two holding rods 641 are opposite to and contact with each other, and form a rectangular ring shape with the holding rods 641 and the steering rod 64, so that the steering rod 64 is convenient to drag in the trailer state, and in order to prevent the two extension parts 646 from being separated from each other, a second sleeve 647 is movably provided on one of the extension parts 646, when the two extension parts 646 are opposite to and contact with each other, the second sleeve 647 can be prevented from being separated by the limitation of the second sleeve 647 by sliding the second sleeve 647, and when the two extension parts 646 need to be separated, the second sleeve 647 can be pushed away directly; the other extension part 646 which is not provided with the second sleeve 647 is provided with a power-assisted shifting key 648, and the power-assisted shifting key 648 is electrically connected with the control assembly 20 and is used for realizing the effect of power assistance in a dragging state through the power-assisted shifting key 648, namely, the driving wheel 41 can be operated at a uniform speed through shifting the power-assisted shifting key 648, so that the effect of power assistance in dragging is realized.

In order to avoid the second sleeve 647 sliding freely on the two extending portions 646, the tail end of the second sleeve 647 is connected with one extending portion 646 where the second sleeve 647 is located through a spring, when the two extending portions 646 are opposite and contact, the second sleeve 647 moves towards the direction where the other extending portion 646 is located through the acting force of the spring, so that the two extending portions 646 are fixed, meanwhile, due to the arrangement of the spring, unwanted sliding can be avoided, and the two extending portions 646 are separated from each other.

It should be noted that, the first sleeve 642 and the second sleeve 647 are both limited to the steering rod 64 or the extension 646 by the engagement of the inner wall convex ring, so that they cannot be completely separated.

Further, both the grip rods 641 are provided with a grip sleeve 649, wherein one grip sleeve 649 is rotatably connected with the grip rod 641 and electrically connected with the control assembly 20, and the grip sleeve 649 rotates around the grip rod 641 as a rotation center for controlling the vehicle speed of the folding vehicle body 10;

specifically, one of the two grip sleeves 649 can rotate relative to the grip 641, the rotatable grip sleeve 649 is electrically connected with the control assembly 20 and is used for controlling the rotation speed of the electric wheel, the control principle is that an angle position sensor is arranged on the grip sleeve 649, the rotation angle of the grip sleeve 649 is sent to the control assembly 20 through the angle position sensor, the control assembly 20 controls corresponding voltage or current output according to the rotation angle, and the operation speed of the driving wheel 41 is adjusted, so that the speed is controlled.

It should be noted that, another grip 649 may be provided as a rotating structure, and the rotation of the grip 649 may be connected to an electronic brake structure, so that the rotation of the grip 649 is used to control the rotation speed of the electric wheel to brake, thereby improving the braking effect.

Further, a turning rod 67 is rotatably connected to the bottom of the control rod 61, the swing arm 63 is fixedly connected to the bottom of the turning rod 67, the shaft sleeve 62 is sleeved outside the turning rod 67, and a sliding sleeve 68 is slidably arranged outside the control rod 61;

specifically, in order to enable the control rod 61 to be inclined for a user to drag, the bottom of the control rod 61 is rotationally connected with the turning rod 67 in a rotating shaft manner, the swing arm 63 is arranged at the bottom of the turning rod 67, and the control rod 61 can vertically rotate relative to the turning rod 67, so that the control rod 61 is inclined, thereby being convenient for the user to drag, saving more labor and being convenient to drag; the shaft sleeve 62 is rotationally connected with the turning rod 67 through structural members such as bearings, so that the control rod 61 can drive the turning rod 67 to horizontally rotate relative to the shaft sleeve 62 to control the direction, and in order to ensure the stability of the control rod 61 in a riding state, a sliding sleeve 68 is further sleeved at the joint of the control rod 61 and the turning rod 67, and when the control rod is not required to be towed, the sliding sleeve 68 can be slid to the joint of the control rod 61 and the turning rod 67, and the rotation of the control rod 61 and the turning rod 67 is limited through the sliding sleeve 68 so as to ensure the use.

Further, in the present embodiment, the control unit 20 includes: a controller 21 and at least one power source 22 electrically connected to the controller 21, wherein the driving assembly 40 and the direction control assembly 60 are electrically connected to the controller 21, respectively

Specifically, the controller 21 is configured to receive a control signal sent by the control key 643 and control the operation of the driving wheel 41 according to the control signal, and the power supply 22 is configured to provide electric power to the controller 21 and the driving wheel 41.

It should be noted that, for braking, a foot brake is disposed on one of the first connecting rods 652, and the foot brake is connected to the two driving wheels 41 or the two driven wheels 11 through a brake line for controlling the driving speed, wherein the driving wheels 41 or the driven wheels 11 have a brake structure such as a drum brake, a disc brake or an electronic brake, which is not described herein.

The use state is as follows: as shown in fig. 1, in the driving state, when the folding is required, firstly, two locking bayonet locks 92 are pulled to separate from the locking holes 36, then the locking bayonet lock 91 is rotated to be positioned at the lower side of the supporting rod 30, then the driving component 40 can be moved, the driving component 40 drives the steering component 60 to move together, when the driving component 40 moves towards the direction of the folding car body 10, the unlocking piece 47 on the transfer block 46 contacts with the rotation limiting bayonet lock 82 to push the rotation limiting bayonet lock 82 to rotate anticlockwise, the rotation limiting bayonet lock 82 pushes the rotation limiting bayonet lock 81 to separate from the rotation limiting slotted hole 122 into the rotation limiting sliding groove 33, and along with the movement of the driving component 40, the rotation limiting bayonet lock 81 is jacked up by the rotation limiting bayonet lock 82 and enters the upper side of the rotation limiting sliding groove 33, at this time, the rotation limiting bayonet lock 81 can not fall off above the rotation limiting sliding groove 33 due to the pulling force of the rotation limiting tension spring 83, then the driving component 40 can move into the connecting piece 12, and the rotation limiting bayonet lock 82 is self-reset by the tension spring 82 after the unlocking piece 47 and the rotation limiting bayonet lock 81 are lost; at this time, the supporting rod 30 can be lifted up to rotate relative to the connecting piece 12, when the supporting rod 30 is in a vertical state, the limiting pressing block 34 presses the limiting needle rod 124, the end part of the limiting needle rod 124 penetrates into the connecting piece 12 and is inserted into the sliding block 45, so that the driving assembly 40 is fixed in the connecting piece 12, meanwhile, the limiting rotation bayonet lock 81 can be contacted with the stop block 123, and can fall below the limiting rotation chute 33 again under the stop block 123 and be contacted with the top wall of the outer sleeve 121, so that after the supporting rod 30 is put down, the supporting rod 30 can be directly clamped into the limiting rotation slot 122, the use convenience is improved, and then the supporting rod 30 can be fixed only by a binding band or a magnetic attraction mode; since the direction control assembly 60 moves along with the driving assembly 40, the direction control assembly 60 is located on the front end surface of the folding vehicle body 10, when the folding is required, by pulling up the pressing rod 71, the pressing rod 71 moves up to the limit position and then loses contact with the two limiting pins 74, the two limiting pins 74 slide in the direction of the pressing rod 71 under the action of the restoring spring 75, so that the ends of the two limiting pins are separated from the first connecting rod 652 and enter the folding member 651, at this time, after the cooperation of the limiting pins 74 is lost, the folding member 651 and the first connecting rod 652 can rotate relative to the first connecting rod 652 by pulling the control rod 61 upwards, the first connecting rod 652 rotates relative to the switching block 46, and meanwhile, the control rod 61 also drives the transmission member 50 to lift in the upward moving process, and simultaneously folds the folding vehicle body 10, so that the folding vehicle body 10 is completed, as shown in fig. 11.

When the folding bicycle body 10 is required to be converted from the folding state to the driving state, the folding bicycle body 10 can be unfolded firstly, the steering component 60 is pulled to move to two sides through the connecting piece 12, the control rod 61 is moved downwards until the two first connecting rods 652 are flush with the folding piece 651, at the moment, the transmission pieces 50 are flush with each other, then one end of the limiting pin 74 penetrates into the first connecting rods 652 to form fit by pressing the pressing rod 71, and the first connecting rods 652 are fixed with the folding piece 651; then, the supporting rod 30 can be put down, so that the supporting rod 30 is flush with the connecting piece 12, at the moment, the rotation limiting clamping pin 81 which is pushed by the stop block 123 to slide down below the rotation limiting sliding groove 33 automatically enters the rotation limiting groove hole 122 under the tensile force of the rotation limiting tension spring 83 to form a fit with the rotation limiting groove hole 122, and the supporting rod 30 is fixed; meanwhile, due to the rotation of the support rod 30, the limiting pressing block 34 is separated from contact with the limiting needle rod 124 at the moment, the limiting needle rod 124 automatically retracts from the connecting piece 12 under the action force of the spring and is separated from the matching state with the sliding block 45, at the moment, the sliding block 45 loses limitation, the driving assembly 40 can move to the other end of the support rod 30 until the driving assembly moves to the limit position, the locking deflector 91 can be rotated, the driving assembly 40 is limited to move back through the locking deflector 91, and the unfolding operation is completed;

When the driving state is required to be converted into the dragging state, two conditions can be determined according to the self requirements of a user, namely, in the driving state, the sliding sleeve 68 on the control rod 61 is slid upwards to be separated from the joint of the turning rod 67 and the control rod 61, and at the moment, the control rod 61 can rotate relative to the turning rod 67 to enable the control rod to be inclined so as to facilitate dragging; secondly, in the driving state, the driving assembly 40 is moved into the connecting piece 12 while lifting the support bar 30 to be vertical on both sides of the folding body 10, and then the control bar 61 is inclined with respect to the turning bar 67 by the sliding sleeve 68, as shown in fig. 10.

It should be noted that, because the two support rods 30 are parallel, in order to improve the diversity and convenience of use, support members such as pedals may be further installed between the two support rods, so that a user may directly stand on the pedals, and the pedals may be detachably connected.

In summary, the front end of the folding vehicle body is provided with the connecting piece and the supporting rod rotationally connected with the connecting piece, so that the supporting rod can be horizontally arranged in front of the connecting piece when needed, can be folded in front of the folding vehicle body when not needed, the occupied space is reduced, and meanwhile, the driving assembly is slidingly connected below the connecting piece, so that the driving assembly can move below the supporting rod and the folding vehicle body according to the requirements, can be converted under driving and towing, is simple to operate and convenient to use, realizes a brand-new folding electric trailer, has multiple functions in multiple forms, is high in novelty and attractive, and improves the competitiveness of products.

The present invention 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 invention is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. A collapsible electric trailer having slidable wheels, comprising: folding the vehicle body and the control assembly; the folding bicycle is characterized in that a follower wheel is mounted at the bottom of the tail end of the folding bicycle body, at least one supporting rod is connected to the front end of the folding bicycle body, a driving assembly and a direction control assembly are connected in a sliding mode, the direction control assembly is in transmission connection with the driving assembly, the direction control assembly is used for controlling the driving assembly to rotate, the direction control assembly and the driving assembly slide along the supporting rod, a sliding limiting device used for limiting sliding is arranged on the driving assembly, and the driving assembly is electrically connected with the control assembly.

2. The foldable electric scooter of claim 1, wherein two sides of the front end of the foldable scooter body are respectively provided with a connecting piece, two support rods are respectively connected with the two connecting pieces in a rotating way, one end of each support rod connected with the connecting piece is provided with a rotation limiting device, and the rotation limiting device is used for limiting the support rods to rotate relative to the connecting pieces.

3. The foldable electric scooter of claim 2, wherein the support rod is provided with a mounting boss adjacent to one end of the connecting piece, one end of the mounting boss is provided with a rotation shaft hole, one end of the mounting boss far away from the rotation shaft hole is provided with a rotation limiting sliding groove, an outer sleeve is sleeved outside the connecting piece, one end of the outer sleeve adjacent to the support rod extends out of the end part of the connecting piece, the top of the outer sleeve also extends out of the top of the connecting piece, the end part of the support rod is rotatably connected with one end of the outer sleeve extending out of the connecting piece, rotation limiting groove holes are respectively formed in two sides of one end of the outer sleeve connected with the support rod, and the rotation limiting sliding groove corresponds to the rotation limiting groove holes after the support rod rotates by a preset angle relative to the connecting piece.

4. The foldable electric scooter of claim 3, wherein the outer sleeve is in arc transition with the top of one end of the support rod, a vertical stop block is arranged at a preset position of arc transition of the support rod, a raised limit pressing block is arranged in the middle of the installation boss, and a limit needle rod matched with the limit pressing block is further arranged in the middle of the top of the connecting piece.

5. The collapsible electric trailer for a slidable vehicle wheel of claim 4 wherein the rotation limiting means comprises: the limiting rotation bayonet lock, limit rotate the driving lever, limit rotation bayonet lock is located limit changes the spout, limit rotation bayonet lock's middle part fixedly connected with limit rotation extension spring, limit rotation extension spring keep away from limit rotation bayonet lock one end with installation boss rotates to be connected, limit rotation driving lever is equipped with two, locates through driving lever axle rotation respectively outside the both sides of overcoat, limit rotation driving lever deviates from the one side of connecting piece is equipped with the driving lever extension spring, the both ends of driving lever extension spring respectively with limit rotation driving lever with driving lever axle fixed connection.

6. The foldable electric scooter of claim 2, wherein the connector and the bottom surface of the support bar are provided with respective adapted track grooves, and the drive assembly comprises: a driving wheel and a sliding block; the two sliding blocks are integrally formed at the bottom of each sliding block, the sliding blocks are in sliding fit with the track grooves, the switching blocks are positioned outside the track grooves, unlocking pieces matched with the rotation limiting devices are respectively arranged at two sides of each switching block, and the direction control assembly is connected with the switching blocks and moves along with the movement of the switching blocks; the driving wheels are provided with two, each sliding block is rotationally connected with one driving wheel, a transmission piece is connected between the two driving wheels, and the direction control assembly is rotationally connected with the transmission piece and used for driving the two driving wheels to synchronously rotate.

7. The collapsible electric trailer for a slidable vehicle wheel of claim 6 wherein said transmission 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 corresponding the drive wheel rotates to be connected.

8. The collapsible electric trailer for a slidable vehicle wheel of claim 6, wherein the movement limiting means comprises: the locking driving lever, the one end of locking driving lever with the front end of changeover piece rotates to be connected, the locking driving lever keeps away from the one end of changeover piece is equipped with the locking bayonet lock, the bracing piece is kept away from the locking hole has been seted up to the terminal surface of folding automobile body, the locking hole with the locking bayonet lock cooperatees.

9. The collapsible electric trailer for a slidable vehicle wheel of claim 1, wherein the steering assembly comprises: the control rod, the bottom cover of control rod is equipped with the axle sleeve, the axle sleeve deviates from one side of folding automobile body is equipped with coupling assembling, coupling assembling be used for with drive assembly connects and supports the control rod, the bottom face of control rod still is connected with the swing arm, the swing arm with drive assembly rotates to be connected, the control rod passes through the swing arm drives drive assembly rotates, still the activity is equipped with the steering column in the control rod.

10. The collapsible electric trailer for a slidable vehicle wheel of claim 9, wherein the connection assembly comprises: the folding piece extends out from one side of the shaft sleeve, two ends of the folding piece are respectively and rotatably connected with a first connecting rod, one end, away from the folding piece, of each first connecting rod is rotatably connected with the corresponding driving assembly, and a connecting limiting device used for limiting the rotation of the first connecting rods is further arranged on the folding piece.

11. The collapsible electric trailer for a slidable vehicle wheel of claim 10, wherein the connection limiting means 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 two limiting pins, 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 matched with the limiting pins are formed in the ends, connected with the folding piece, of the two first connecting rods.

12. The foldable electric scooter of claim 9, wherein the steering rod is exposed at the top of the steering rod and is in a T shape, two ends of the top of the steering rod are respectively connected with holding rods in a rotating manner, a first sleeve is respectively arranged at the outer sides of one ends of the two holding rods connected with the steering rod in a sliding manner, a plurality of control keys are arranged on the top surface of the steering rod, a plurality of control keys are electrically connected with the control assembly, and a first limiting device is arranged at the outer sides of the top of the control rod and used for limiting the sliding of the steering rod.

13. The foldable electric scooter of claim 12, wherein a display screen is further provided on a side of the top of the steering rod facing the foldable body, the display screen being electrically connected to the control assembly.

14. The foldable electric scooter of claim 12, wherein two of said handles are provided with upwardly extending extensions extending vertically away from the end connected to said steering rod, one of said extensions being slidably provided with a second sleeve and the other of said extensions being provided with a booster key, said booster key being electrically connected to said control assembly.

15. The foldable electric scooter of claim 12, wherein both of said grips are provided with a handlebar, one of said handlebar being rotatably connected to said grip and electrically connected to said control assembly, said handlebar being rotatable about said grip for controlling the speed of said foldable scooter.

16. The foldable electric scooter of claim 9, wherein the bottom of the control rod is rotatably connected with a turning rod, the swing arm is fixedly connected with the bottom of the turning rod, the shaft sleeve is sleeved outside the turning rod, and a sliding sleeve is arranged outside the control rod in a sliding manner.

17. The collapsible electric trailer for a slidable vehicle wheel of claim 1, wherein the control assembly comprises: the device comprises a controller and at least one power supply electrically connected with the controller, wherein the driving component and the direction control component are respectively and electrically connected with the controller.