CN221477389U - Folding trailer with foldable pedals - Google Patents

Abstract

The application discloses a folding trailer with a foldable pedal, which comprises: the folding bicycle comprises a folding bicycle body, wherein one end of the folding bicycle body is provided with a folding pedal, the folding pedal can be folded, one side of the folding pedal is provided with two bicycle body connecting parts, the bicycle body connecting parts are rotationally connected with a directional wheel, a steering rod assembly is rotationally arranged on the folding pedal, the steering rod assembly can horizontally rotate relative to the folding pedal, at least one pedal wheel is rotationally arranged at the bottom of the folding pedal, and the pedal wheel is in transmission connection with the steering rod assembly. The folding pedal is rotationally connected with the wheel shaft of the directional wheel, so that the stressed height of the folding vehicle body is effectively reduced, the vehicle overturning risk on an uphill road section is reduced, and the use stability of the folding vehicle body is improved; and the folding pedal can be folded along with the folding car body, so that the portability of use is effectively improved.

Description

Folding trailer with foldable pedal

Technical Field

The utility model relates to the technical field of folding electric vehicles, in particular to a folding trailer with foldable pedals.

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.

The existing folding trailer has the advantages that the carrying space is large, the storage is convenient, the price is low, the folding trailer becomes a preferred option for people in daily life demands, such as walking, the folding trailer can also serve as a child bed and the like, however, the existing folding trailer generally does not have a carrying function, so that a user needs to walk with the folding trailer or walk along with the folding trailer, the user is easy to feel tired once the using time is long, the user can not meet the easy using requirement of the user, and the problem of how to promote portability is also urgent to be solved because the folding trailer is usually used outdoors.

Accordingly, there is a need to design a folding trailer with foldable pedals to overcome one or more of the above-described deficiencies of the prior art.

Disclosure of utility model

The technical scheme adopted by the utility model for solving the technical problems is as follows: a folding trailer having foldable steps, comprising: the folding bicycle comprises a folding bicycle body, wherein one end of the folding bicycle body is provided with a universal wheel, the other end of the folding bicycle body is provided with a directional wheel, one end of the directional wheel is provided with a folding pedal, the folding pedal can be folded, one side of the folding pedal is provided with two bicycle body connecting parts, the bicycle body connecting parts are connected with the directional wheel in a rotating mode, the folding pedal can vertically rotate relative to the folding bicycle body through the bicycle body connecting parts, a steering rod assembly is rotatably arranged on the folding pedal, the steering rod assembly can horizontally rotate relative to the folding pedal, the bottom of the folding pedal is rotatably provided with at least one pedal wheel, the pedal wheel is in transmission connection with the steering rod assembly, the steering rod assembly controls the pedal wheel to turn, the folding bicycle body and/or the folding pedal are/is provided with a controller and a power supply connected with the controller, and the directional wheel and/or the pedal wheel are connected with the controller.

In a preferred embodiment, the folding pedal comprises: folding the bracket and the folding plate; the folding support can be folded from left and right sides to the middle, a direction stay bar is connected to the front end bottom of the folding support in a limiting and rotating mode, the direction stay bar assembly is connected with the direction stay bar in a rotating mode, the direction stay bar assembly can horizontally rotate relative to the direction stay bar, the car body connecting portion is located on two sides, provided with the direction stay bar, of the folding support, the folding plate is arranged in a foldable mode, and the folding plate is laid above the folding support.

In a preferred embodiment, a direction avoiding hole matched with the steering rod assembly is formed in one side of the folding plate, the folding plate is formed by hinging a plurality of plates end to end in sequence, a positioning column is arranged on the folding plate at a preset position, and a positioning hole matched with the positioning column is formed in the folding support.

In a preferred embodiment, the folding stand comprises: a telescopic sleeve and a supporting frame; the telescopic tube is provided with two, the support frame is "X" shape, the support frame is located two between the telescopic tube, the tip of support frame with corresponding telescopic tube rotates to be connected, two body coupling portion is located two telescopic tube's front end, and with telescopic tube's inner tube fixed connection, every telescopic tube's outer tube tail end fixedly connected with connecting block, the footboard wheel with the bottom of connecting block rotates to be connected, the support frame with corresponding the spacing rotation of lateral part of connecting block is connected, the direction vaulting pole is located two telescopic tube's front end, and with telescopic tube's outer tube is spacing to rotate to be connected.

In a preferred embodiment, the direction stay includes: a first brace and a second brace; the one end of first vaulting pole with the second vaulting pole is equipped with the ring cover respectively, first vaulting pole with the second vaulting pole is passed through the ring cover rotates to be connected together, first vaulting pole with the second vaulting pole is kept away from and is equipped with the one end of ring cover respectively with the spacing rotation of corresponding telescopic tube is connected, first vaulting pole with the second vaulting pole parallel and level.

In a preferred embodiment, two pedal wheels are provided, each pedal wheel is provided with a wheel swing arm, a transmission rod is rotatably connected between the two wheel swing arms, the transmission rod is arranged in a folding manner, and two ends of the transmission rod can be folded horizontally from the middle.

In a preferred embodiment, the steering rod assembly comprises: the first folding piece, the telescopic rod and the telescopic supporting tube; one end of the telescopic supporting tube is connected with the middle part of the direction supporting rod, the other end of the telescopic supporting tube is provided with a transmission assembly, the transmission assembly is in transmission connection with the transmission rod, one end of the first folding piece is in transmission connection with the telescopic supporting tube, the first folding piece can horizontally rotate relative to the telescopic supporting tube, the other end of the first folding piece is in transmission connection with the telescopic rod, the telescopic rod can vertically rotate relative to the first folding piece, and one end of the first folding piece, which is connected with the telescopic supporting tube, is in transmission connection with the transmission assembly.

In a preferred embodiment, a transmission gear is disposed at an end of the first folding member connected to the telescopic support tube, and the transmission assembly includes: the driven gear is rotationally arranged at one end, far away from the first folding piece, of the telescopic supporting tube, a direction swing arm is fixedly connected to the driven gear, the transmission rod is rotationally connected with the direction swing arm, and the transmission gear is in transmission connection with the driven gear.

In a preferred embodiment, a limiting chute is formed at one end of the direction swing arm, a sliding shaft is arranged at the middle part of the transmission rod, the sliding shaft is matched with the limiting chute, and the middle part of the transmission rod slides along the limiting chute through the sliding shaft.

In a preferred embodiment, two limiting blocks are further arranged at the bottom of one end of the direction swing arm, which is provided with the limiting chute, the opposite sides of the two limiting blocks are respectively in slope transition, and a clamping block is further arranged on the sliding shaft in a sliding mode.

In a preferred embodiment, the telescopic support tube is fixedly connected with the middle part of the support frame, the inner tube of the telescopic support tube is connected with the middle part of the direction support rod, the inner tube of the telescopic support tube is provided with a position avoidance chute, the bottom of the first folding piece passes through the position avoidance chute and penetrates out of the telescopic support tube, the transmission gear is fixedly connected with the bottom of the first folding piece, and the driven gear is rotationally connected with the outer tube of the telescopic support tube.

In a preferred embodiment, one end of the vehicle body connecting part is rotatably connected with a connecting seat, the connecting seat is fixedly connected with the folding pedal, the connecting seat is provided with a limiting structure, and the limiting structure is used for limiting the rotation of the vehicle body connecting part relative to the connecting seat.

In a preferred embodiment, the limiting structure comprises: the connecting seat is provided with a transverse sliding groove, the transverse sliding groove is movably arranged in the transverse sliding groove, a vertical hole is further formed in the middle of the connecting seat, an unlocking shifting handle is rotatably arranged in the vertical hole, one end of the unlocking shifting handle is slidably connected with the limiting column, a shifting handle tension spring is further connected to one face of the unlocking shifting handle, facing the folding car body, of the connecting seat, and two limiting grooves are formed in one end, connected with the connecting seat, of the car body connecting portion.

In a preferred embodiment, a clamping groove is formed in one end, far away from the folding pedal, of the vehicle body connecting portion, an embedded groove is formed in one end, intersecting with the clamping groove, of the clamping groove, a clamping pin is slidably arranged in the embedded groove, the clamping pin can be inserted into the clamping groove, a pull wire is connected to the tail end of the clamping pin, a spring is further arranged in the clamping pin, and the spring is used for enabling the clamping pin to move towards the direction where the clamping groove is located.

In a preferred embodiment, the vehicle body connecting part is also rotatably connected with an unlocking handle, and one end of the unlocking handle is fixedly connected with the stay wire.

In a preferred embodiment, the telescopic rod is further sleeved with a limiting sleeve, and the limiting sleeve is used for limiting the rotation of the telescopic rod relative to the first folding piece.

In a preferred embodiment, the end of the folding bicycle body far away from the folding pedal is also movably connected with a handle.

In a preferred embodiment, the inner rod of the telescopic rod is provided with a handle, a plurality of control keys are arranged on the handle, the handle is further provided with a braking grip, the braking grip controls the pedal wheel to brake, and the control keys are connected with the controller.

In a preferred embodiment, a counter gear is further arranged between the transmission gear and the driven gear, the counter gear is arranged in a double-layer mode, one layer of the counter gear is meshed with the transmission gear, and the other layer of the counter gear is in transmission connection with the driven gear.

The beneficial effects of the utility model are as follows: the folding pedal is connected to one end of the folding car body, so that a manned function is realized through the folding pedal, the folding car body is more convenient and labor-saving to use, the experience of use is improved, the carrying capacity of the folding car body is not affected, and the practicability is improved; the folding pedal is rotationally connected with the wheel shaft of the directional wheel, so that the stressed height of the folding vehicle body is effectively reduced, the vehicle overturning risk on an uphill road section is reduced, and the use stability of the folding vehicle body is improved; and the folding pedal can be folded along with the folding car body, so that the portability of use is effectively improved.

Drawings

FIG. 1 is a schematic diagram of the 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 folding pedal of the present utility model;

FIG. 4 is a schematic view of the stacking of the folding plates of the present utility model;

FIG. 5 is a schematic view of the folding pedal of the present utility model;

FIG. 6 is a schematic view of the structure of the direction stay of the present utility model;

FIG. 7 is a schematic view of the telescopic tube of the present utility model;

FIG. 8 is a schematic view of the pedal wheel of the present utility model;

FIG. 9 is a schematic view of the steering rod assembly of the present utility model;

FIG. 10 is a schematic view of a connecting base according to the present utility model;

FIG. 11 is a cross-sectional view of a connector body attachment portion of the present utility model;

FIG. 12 is a folding state diagram of the folding pedal of the present utility model;

FIG. 13 is a drag state diagram of the present utility model;

fig. 14 is a folding state diagram of the present utility model.

In the figure:

1. folding the vehicle body; 2. a universal wheel; 3. a directional wheel; 4. a handle;

10. Folding the pedal; 11. folding the bracket; 111. a telescoping tube; 112. positioning holes; 113. a support frame; 114. a connecting block; 12. folding plates; 121. a direction avoidance hole; 122. positioning columns; 13. a direction stay; 131. a first stay; 132. a second stay bar; 133. a ring sleeve; 14. a pedal wheel; 141. a wheel swing arm; 142. a transmission rod;

20. A vehicle body connection part; 21. a connecting seat; 211. a transverse chute; 212. a vertical hole; 213. unlocking the shifting handle; 214. a pulling handle tension spring; 22. a limit structure; 221. a limit column; 23. a limit groove; 24. a clamping groove; 25. an embedding groove; 26. a bayonet lock; 27. a spring; 28. unlocking the handle;

30. A steering rod assembly; 31. a first folding member; 311. a transmission gear; 312. a reversing gear; 32. a telescopic rod; 321. a limit sleeve; 322. a handle; 323. a control key; 324. a brake grip; 33. a telescopic support tube; 331. a slide groove; 34. a transmission assembly; 341. a driven gear; 342. a direction swing arm; 343. limiting sliding grooves; 344. a slide shaft; 345. a limiting block; 346. and (5) clamping blocks.

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. 1-14, the present utility model provides a folding trailer with a foldable step, comprising: the folding car body 1, be equipped with universal wheel 2 of folding car body 1's one end, be equipped with directional wheel 3 of the other end, folding car body 1 is equipped with the one end of directional wheel 3 is equipped with folding footboard 10, folding footboard 10 can draw in, one side of folding footboard 10 is equipped with two automobile body connecting portion 20, automobile body connecting portion 20 with directional wheel 3 rotates to be connected, folding footboard 10 through automobile body connecting portion 20 can relative folding car body 1 vertical rotation, the rotatable steering column assembly 30 that is equipped with on folding footboard 10, steering column assembly 30 can relative folding footboard 10 horizontal rotation, the bottom rotation of folding footboard 10 is equipped with two footboard wheels 14, two footboard wheels 14 with steering column assembly 30 transmission connection, steering column assembly 30 control two footboard wheels 14 turns to, folding car body 1 and/or folding footboard 10 is equipped with the controller (not shown in the figure) and with the power that controller (not shown in the figure) is connected, directional wheel 3 and/or the controller 14 is connected.

Specifically, the folding bicycle body 11 may be a folding bicycle body or a gathering bicycle body, wheels are respectively arranged at two ends of the bottom of the folding bicycle body 11, wheels at one end are directional wheels 3 incapable of rotating horizontally, universal wheels 2 are arranged at the other end, the folding bicycle body 11 is further provided with folding pedals 10 at one end provided with the universal wheels 2, the folding pedals 10 can be folded from two sides to the middle, the folding pedals are consistent with the folding of two sides of the folding bicycle body 1, the folding bicycle body is not required to be folded in the front-back direction, the folding bicycle body is simpler in structure and can be adapted to the folded height of the folding bicycle body 1, two sides of one end of the folding pedals 10 are respectively provided with a bicycle body connecting part 20, the folding pedals 10 are rotationally connected with the directional wheels 3 of the folding bicycle body 1 through the bicycle body connecting parts 20, so that the folding pedals 10 can rotate vertically relative to the folding bicycle body 1, when a plurality of uneven road surfaces are crossed, the mutual influence between the folding pedals 10 and the folding bicycle body 1 is reduced, and preferably, the rotating connection of the bicycle body connecting parts 20 and the wheel shafts of the folding bicycle body 1 can be reduced, and the connecting points of the folding bicycle body 1 are not required to be folded in the front-back direction, so that the height of the folding bicycle body 10 acting on the folding bicycle body 1 is reduced, and the height is reduced, and the risk of a user is lowered when the folding bicycle body is in a safety road section; in order to facilitate the control of the direction of a user, a steering rod assembly 30 is further arranged on the folding pedal 10, the steering rod assembly 30 can horizontally rotate relative to the folding pedal 10, at least one pedal wheel 14 is arranged at the bottom of the folding pedal 10, when the pedal wheel 14 is arranged as one, the pedal wheel 14 is positioned at the middle part of the folding pedal 10, the pedal wheel 14 is in transmission connection with the steering rod assembly 30, and the steering of the pedal wheel 14 can be controlled by the steering rod assembly 30; when the controller and the power supply are placed on the folding pedal 10, the steering rod assembly 30 is connected with the controller, the pedal wheel 14 is a wheel with an in-wheel motor inside, the driving wheel of the battery car and the electric wheelchair can be referred, the steering rod assembly 30 is connected with the controller, the running of the pedal wheel 14 can be controlled through the steering rod assembly 30, and the folding pedal 10 is powered by the folding pedal 1 to drive and walk; when the folding bicycle body 1 is provided with a controller and a power supply, the directional wheel 3 is provided with a hub motor inside, and the directional rod assembly 30 is connected with the controller and used for controlling the running of the directional wheel 3, and the folding pedal 10 is driven to follow by the power of the directional wheel 3; when the folding bicycle body 1 and the folding pedal 10 are respectively provided with a controller and a power supply, the directional wheel 3 and the pedal wheel 14 are wheels with an in-wheel motor, the controllers of the folding bicycle body 1 and the folding pedal 10 are connected together and are controlled by the steering rod assembly 30, so that four-wheel drive is realized to promote the power of the trailer; wherein, in order to ensure the accuracy of turning, the folding pedal 10 and the folding bicycle body 1 are always on the same straight line, the directional wheel 3 is used as a rotation point during turning, the direction of the pedal wheel 14 is controlled by the direction rod component 30, and the folding bicycle body 1 is turned in the opposite direction with the folding pedal 10 by utilizing the lever principle because the universal wheel 2 is arranged in front of the folding bicycle body 1.

Further, the folding pedal 10 includes: a folding bracket 11 and a folding plate 12; the folding bracket 11 can be folded from left and right sides to the middle, a direction stay bar 13 is limited and rotatably connected to the bottom of the front end of the folding bracket 11, the direction stay bar assembly 30 is rotatably connected with the direction stay bar 13, the direction stay bar assembly 30 can horizontally rotate relative to the direction stay bar 13, the vehicle body connecting part 20 is positioned at two sides of the folding bracket 11 provided with the direction stay bar 13, the folding plate 12 can be folded, and the folding plate 12 is paved above the folding bracket 11;

Specifically, the folding bracket 11 can be folded from two sides to the middle to adapt to folding of the folding vehicle body 1 in the width direction, the bottom of the front end of the folding bracket 11 is rotatably connected with a direction stay bar 13, the direction stay bar 13 can rotate in a preset angle relative to the folding bracket 11, namely, the unfolded and folded states are all movable in a range of less than or equal to 90 degrees, when the limit value is reached, the movement cannot be continued, the bottom end of the direction stay bar assembly 30 is limited, the direction stay bar 13 is connected with the direction stay bar 13, the direction stay bar 13 is used for providing supporting force for the direction stay bar assembly 30, so that the direction stay bar assembly 30 can stand on the folding pedal 10, and the direction stay bar assembly 30 can rotate in the horizontal direction relative to the direction stay bar 13 so as to control the steering of the pedal wheels 14; meanwhile, the vehicle body connecting parts 20 are arranged at two sides of the folding bracket 11, the folding plate 12 is paved above the folding bracket 11 for supporting a user to stand on, and the folding plate 12 is of a folding structure which can be folded and folded from front or back, and is different from the folding direction of the folding pedal 10, so that the folding plate 12 is supported by the folding pedal 10, and the folding plate 12 supports the user.

Further, a direction avoiding hole 121 adapted to the steering rod assembly 30 is provided on one side of the folding plate 12, the folding plate 12 is formed by a plurality of plates hinged end to end in sequence, wherein the folding plate 12 at a preset position is provided with a positioning column 122, and the folding bracket 11 is provided with a positioning hole 112 adapted to the positioning column 122;

Specifically, the folding plate 12 is laid on the folding bracket 11, in order to avoid affecting the placement of the steering rod assembly 30, a direction avoiding hole 121 adapted to the steering rod assembly 30 is formed on one side of the folding plate 12, and the folding plate 12 is not limited by the folding plate 12 through the direction avoiding hole 121; the folding plate 12 is formed by hinging a plurality of plates from head to tail in sequence, the plates are equal in length and width and can be stacked together through a hinged structure, because the folding plate 12 is detachably arranged on the folding bracket 11, in order to avoid the situation that the folding plate 12 is separated from the folding bracket 11 and the folding bracket 11 is folded during normal use, positioning posts 122 are respectively arranged on the plates at preset positions, and simultaneously, hole sites matched with the positioning posts 122 are arranged on other plates, when the folding plate 12 is in a stacked state, the positioning posts 122 are inserted into the hole sites, the folding plate 12 is prevented from being unfolded, and because the plates are unfolded in an arc shape, the positioning posts 122 are vertical, the hole sites are arranged in a horn shape so as to be convenient to open, and simultaneously, the positioning holes 112 matched with the positioning posts 122 are respectively arranged on two sides of the folding bracket 11, when the folding plate 12 is paved on the folding bracket 11, the positioning posts 122 are inserted into the positioning holes 112, and the folding bracket 11 can be limited to be folded in the width direction through the folding plate 12.

Further, the folding bracket 11 includes: a telescopic tube 111, a support 113; the two telescopic pipes 111 are arranged, the supporting frames 113 are in an X shape, the supporting frames 113 are arranged between the two telescopic pipes 111, the end parts of the supporting frames 113 are rotatably connected with the corresponding telescopic pipes 111, the two vehicle body connecting parts 20 are positioned at the front ends of the two telescopic pipes 111 and fixedly connected with the inner pipes of the telescopic pipes 111, the tail end of the outer pipe of each telescopic pipe 111 is fixedly connected with a connecting block 114, the pedal wheels 14 are rotatably connected with the bottoms of the connecting blocks 114, the supporting frames 113 are rotatably connected with the corresponding side parts of the connecting blocks 114 in a limiting mode, and the direction supporting rods 13 are positioned at the front ends of the two telescopic pipes 111 and rotatably connected with the outer pipes of the telescopic pipes 111 in a limiting mode;

Specifically, the telescopic tubes 111 comprise an inner tube and an outer tube, two telescopic tubes 111 are arranged at intervals, the tail end of the outer tube of each telescopic tube 111 is fixedly connected with a connecting block 114, the pedal wheels 14 are rotationally connected with the connecting blocks 114, and the pedal wheels 14 can horizontally rotate relative to the connecting blocks 114; the support frame 113 is further arranged between the two telescopic tubes 111 in an X shape, the support frame 113 can horizontally rotate around a central point, the support frame 113 is provided with four end parts, two end parts are rotatably connected with the two connecting blocks 114, the other two end parts are rotatably connected with inner tubes of the two telescopic tubes 111, when the two telescopic tubes 111 are mutually closed, the support frame 113 is extruded to be folded, the distance between the two ends of the support frame 113 can be changed in the folding process, at the moment, the inner tubes of the telescopic tubes 111 can be pulled to extend, so that the support frame 113 can be completely folded, the direction stay bar 13 is positioned at the head end of the outer tube of the telescopic tubes 111 and is in limited rotary connection with the outer tube of the telescopic tubes 111, and the direction stay bar 13 can be folded from the middle part, so that the direction stay bar 13 can not limit the closing of the two telescopic tubes 111.

It should be noted that the positioning hole 112 is provided on the telescopic tube 111, and the positioning hole 112 penetrates through the inner tube and the outer tube of the telescopic tube 111, and when the folding plate 12 is laid thereon, the positioning post 122 penetrates into the positioning hole 112, and the sliding of the inner tube and the outer tube of the telescopic tube 111 can be restricted while the folding plate 12 is prevented from moving.

Further, the direction stay 13 includes: a first stay 131, a second stay 132; one ends of the first supporting rod 131 and the second supporting rod 132 are respectively provided with a ring sleeve 133, the first supporting rod 131 and the second supporting rod 132 are rotationally connected together through the ring sleeve 133, one ends of the first supporting rod 131 and the second supporting rod 132 far away from the ring sleeve 133 are respectively in limit rotational connection with the corresponding telescopic sleeve 111, and the first supporting rod 131 and the second supporting rod 132 are flush;

specifically, one end of the first stay bar 131 and one end of the second stay bar 132 are respectively provided with a ring sleeve 133, the first stay bar 131 and the second stay bar 132 are provided with rotating shafts in the ring sleeve 133, so that the first stay bar 131 and the second stay bar 132 can rotate relatively, one end of the first stay bar 131 and one end of the second stay bar 132 away from the ring sleeve 133 are respectively connected with the corresponding outer tube of the telescopic tube 111 in a rotating manner, and the first stay bar 131 and the second stay bar 132 are flush, in this state, the ring sleeve 133 of the first stay bar 131 and the second stay bar 132 is one by one, so that the first stay bar 131 and the second stay bar 132 can be flush on the top surface, and the folding of the folding bracket 11 is prevented from being influenced.

It should be noted that, to improve the convenience of folding, the first stay bar 131 and the second stay bar 132 have a predetermined included angle between the first stay bar 131 and the second stay bar 132 at the maximum unfolding angle, rather than a flat angle, so that the first stay bar 131 and the second stay bar 132 can be folded directly when being extruded, without manual intervention.

Further, in this embodiment, two pedal wheels 14 are provided, each pedal wheel 14 is provided with a wheel swing arm 141, a transmission rod 142 is rotatably connected between the two wheel swing arms 141, the transmission rod 142 is folded, and two ends of the transmission rod 142 can be folded horizontally from the middle;

Specifically, in order to facilitate synchronous rotation of the two pedal wheels 14 controlled by the steering rod assembly 30, each pedal wheel 14 is respectively provided with a wheel swing arm 141, a transmission rod 142 is connected between the two wheel swing arms 141, the transmission rod 142 is rotationally connected with the wheel swing arms 141, the two wheel swing arms 141 can respectively rotate horizontally relative to the transmission rod 142, because the folding bracket 11 is foldable, the transmission rod 142 is formed by rotationally connecting two rods and one end, so that the transmission rod 142 can horizontally rotate and fold from the middle part to adapt to the folding of the folding bracket 11.

Further, the steering rod assembly 30 includes: a first folder 31, a telescopic rod 32, and a telescopic stay 33; one end of the telescopic support tube 33 is connected with the middle part of the direction support rod 13, the other end of the telescopic support tube 33 is provided with a transmission assembly 34, the transmission assembly 34 is in transmission connection with the transmission rod 142, one end of the first folding piece 31 is in rotation connection with the telescopic support tube 33, the first folding piece 31 can horizontally rotate relative to the telescopic support tube 33, the other end of the first folding piece 31 is in rotation connection with the telescopic rod 32, the telescopic rod 32 can vertically rotate relative to the first folding piece 31, and one end of the first folding piece 31 connected with the telescopic support tube 33 is in transmission connection with the transmission assembly 34;

Specifically, the top of first folding piece 31 rotates with telescopic link 32 to be connected, telescopic link 32 can be relative first folding piece 31 vertical rotation, flexible pipe 33 includes inner tube and outer tube, the outer tube head end of flexible pipe 33 rotates with the bottom of first folding piece 31 to be connected, first folding piece 31 can rotate horizontally relative the outer tube head end of flexible pipe 33, the outer tube tail end of flexible pipe 33 is equipped with drive assembly 34, this drive assembly 34 rotates with the drive rod 142 to be connected, the bottom of first folding piece 31 is connected with drive assembly 34 transmission, drive assembly 34 when first folding piece 31 rotates, drive assembly 34 again drives drive rod 142, thereby drive two footboard wheels 14 simultaneously and turn to, wherein the inner tube head end of flexible pipe 33 still rotates with the middle part of direction brace 13 to be connected, support flexible pipe 33 through direction brace 13, flexible pipe 33 is supporting first folding piece 31.

Further, a transmission gear 311 is disposed at one end of the first folder 31 connected to the telescopic supporting tube 33, and the transmission assembly 34 includes: the driven gear 341 is rotatably arranged at one end of the telescopic supporting tube 33, which is far away from the first folding piece 31, a direction swing arm 342 is fixedly connected to the driven gear 341, the transmission rod 142 is rotatably connected with the direction swing arm 342, and the transmission gear 311 is in transmission connection with the driven gear 341;

Specifically, the driven gear 341 is rotatably disposed at the tail end of the outer tube of the telescopic supporting tube 33, and can freely rotate on the telescopic supporting tube 33, meanwhile, a transmission gear 311 is fixedly disposed at the bottom end of the first folding member 31, the transmission gear 311 is in transmission connection with the driven gear 341 through a transmission belt or a chain, so that the driven gear 341 is driven to synchronously rotate when the first folding member 31 rotates, the driven gear 341 is fixedly connected with a direction swing arm 342, the direction swing arm 342 is rotationally connected with the middle part of the transmission rod 142, when the driven gear 341 rotates, the direction swing arm 342 is driven to swing left and right, the direction swing arm 342 is driven to move left and right by driving the transmission rod 142, and the transmission rod 142 drives the two pedal wheels 14 to rotate again, so as to realize steering control.

Further, a counter gear 312 is further disposed between the driving gear 311 and the driven gear 341, the counter gear 312 is disposed in a double-layer manner, one layer of the counter gear 312 is meshed with the driving gear 311, and the other layer is in transmission connection with the driven gear 341;

Specifically, if the transmission gear 311 is directly connected with the driven gear 341 in a transmission manner, at this time, the steering of the pedal wheel 14 will be consistent with the steering of the steering rod assembly 30, that is, the steering rod assembly 30 turns to the left, the pedal wheel 14 will turn to the left, and in this case, the folding bicycle body 1 turns to the right, which is opposite to the conventional steering habit of the bicycle, and there is a safety hazard easily, in order to avoid this situation, a counter gear 312 is further provided between the transmission gear 311 and the driven gear 341, the counter gear 312 is meshed with the transmission gear 311, and in order to ensure that the turning angle of the steering rod assembly 30 is equal to the turning angle of the pedal wheel 14, the gear ratio of the counter gear 312 to the transmission gear 311 is 1:1, the reversing gear 312 is connected with the driven gear 341 by a belt or chain, so that when the steering rod assembly 30 rotates leftwards, the pedal wheel 14 rotates rightwards, pushing the folding car body 1 to rotate leftwards about the orientation wheel 3 as the rotation center

Further, one end of the direction swing arm 342 is provided with a limit chute 343, the middle part of the transmission rod 142 is provided with a slide shaft 344, the slide shaft 344 is adapted to the limit chute 343, and the middle part of the transmission rod 142 slides along the limit chute 343 through the slide shaft 344;

Specifically, for the purpose of adapting folding, a limiting sliding groove 343 is formed in the direction swing arm 342, meanwhile, a sliding shaft 344 is arranged in the middle of the transmission rod 142, the sliding shaft 344 is located in the sliding groove, when folding is needed, the transmission rod 142 is extruded by the two pedal wheels 14, and the sliding shaft 344 can slide in the limiting sliding groove 343, so that the transmission rod 142 can be folded together under the extrusion of the two pedal wheels 14, thereby avoiding affecting folding of the folding pedal 10.

Further, two limiting blocks 345 are further provided at intervals at the bottom of one end of the direction swing arm 342 provided with the limiting chute 343, one opposite sides of the two limiting blocks 345 are respectively in slope transition, and a clamping block 346 is further provided on the sliding shaft 344 in a sliding manner;

Specifically, since the sliding shaft 344 can slide in the limiting chute 343, in order to avoid unnecessary sliding of the sliding shaft 344 in the limiting chute 343 during normal use, two limiting blocks 345 are arranged at the bottom of the limiting chute 343, opposite sides of the two limiting blocks 345 are in a slope shape, meanwhile, a clamping block 346 is arranged on the sliding shaft 344 in a sliding manner, a spring 27 is further arranged at the bottom of the sliding shaft 344, the spring 27 is used for pushing the clamping block 346 upwards all the time, when the folding pedal 10 is in normal use, the clamping block 346 is located outside the corresponding limiting block 345, the spring 27 pushes the clamping block 346 to avoid falling, the clamping block 346 is matched with the limiting block 345, the sliding of the sliding shaft 344 is limited under the limitation of the limiting block 345, when the folding device needs to be folded, the clamping block 346 is pressed downwards, the spring 27 is compressed, the two limiting blocks 346 are synchronously separated from the limiting area of the limiting block 345, at the moment, the sliding shaft 344 can slide along the limiting chute 343, when the sliding to the limiting position, the clamping block 346 is matched with the other limiting block 345, the sliding of the other limiting block is limited, and the slope of the limiting block 345 is helpful for the sliding of the clamping block 346 to be located in the two limiting blocks to slide automatically, and the corresponding limiting blocks 345 are not needed to be pushed by people to move beyond the limiting blocks 345, so that the manual pressing of the limiting block 346 is convenient.

Further, the telescopic support tube 33 is fixedly connected with the middle part of the support frame 113, the inner tube of the telescopic support tube 33 is connected with the middle part of the direction support rod 13, a position avoidance chute 331 is formed in the inner tube of the telescopic support tube 33, the bottom of the first folding piece 31 passes through the position avoidance chute 331 and penetrates out of the telescopic support tube 33, the transmission gear 311 is fixedly connected with the bottom of the first folding piece 31, and the driven gear 341 is rotatably connected with the outer tube of the telescopic support tube 33;

Specifically, the outer tube of the telescopic support tube 33 is fixedly connected with the center of the support frame 113, so that the outer tube of the telescopic support tube 33 is prevented from swinging left and right and moving back and forth, the head end of the inner tube of the telescopic support tube 33 is connected with the rotating shaft of the direction support rod 13, a position avoidance chute 331 penetrating through the upper surface and the lower surface is formed in the inner tube of the telescopic support tube 33, the bottom of the first folding piece 31 penetrates through the position avoidance chute 331 from the outer tube of the telescopic support tube 33 and penetrates out of the bottom surface of the outer tube of the telescopic support tube 33, the position avoidance chute 331 can enable the inner tube of the telescopic support tube 33 to freely slide without being limited by the first folding piece 31, the transmission gear 311 is located at one end of the first folding piece 31 penetrating through the telescopic support tube 33, and the driven gear 341 corresponds to the direction in which the transmission gear 311 is located; when the folding bracket 11 is folded, the inner tube of the telescopic bracket 33 is pulled out by folding the direction stay 13, so as to avoid influencing the folding of the folding bracket 11, and the first folding member 31 and the driven gear 341 are both connected with the outer tube of the telescopic bracket 33, so that the interval distance between the first folding member 31 and the driven gear 341 is not changed, and the connection between the transmission gear 311 and the driven gear 341 is not influenced.

It should be noted that, depending on the location of the steering rod assembly 30, there are two modes of use, the first is that the steering rod assembly 30 is located at one end of the folding pedal 10 adjacent to the folding bicycle body 1, and when the user stands on the folding pedal 10, the user faces the folding bicycle body 1; the second is that the steering rod assembly 30 is located at one end of the folding pedal 10 far away from the folding bicycle body 1, when the user stands on the folding pedal 10, the user is away from the folding bicycle body 1, and in the second mode, the first folding piece 31 can be directly connected with the direction swing arm 342 without being connected with the driven gear 341 through the transmission gear 311, so that the direction is controlled, and both modes can also be provided with a seat on the folding pedal 10 to realize the sitting driving of the user; when the pedal wheel 14 is provided with one pedal wheel, the pedal wheel 14 is located at the tail end of the outer tube of the telescopic support tube 33, and when only one pedal wheel 14 is provided, the aforementioned structures of the direction swing arm 342, the transmission rod 142 and the like can be omitted, and the driven gear 341 is arranged on the rotating shaft of the pedal wheel 14 and is in transmission connection with the transmission gear 311 through a belt and the like.

Further, in this embodiment, a connecting seat 21 is rotatably connected to one end of the vehicle body connecting portion 20, the connecting seat 21 is fixedly connected to the folding pedal 10, the connecting seat 21 is provided with a limiting structure 22, and the limiting structure 22 is used for limiting rotation of the vehicle body connecting portion 20 relative to the connecting seat 21;

Specifically, the connecting seat 21 is fixedly connected with the first end of the inner tube of the telescopic tube 111, the body connecting portion 20 and the connecting seat 21 may be rotationally connected or fixedly connected, which may be determined according to practical use requirements, in this embodiment, in order to improve convenience and aesthetic property of folding and ensure the ground-leaving height of the folding support 11, preferably rotationally connected, the body connecting portion 20 may vertically rotate relative to the connecting seat 21, so that the body connecting portion 20 and the connecting seat 21 may be horizontally or have an included angle, the two levels facilitate storage after folding, the included angle state of the two helps to support the folding support 11 to make it leave the ground by a certain height, and a limiting structure 22 is further provided on the connecting seat 21, where the limiting structure 22 is used to limit rotation of the body connecting portion 20 relative to the connecting seat 21, so as to avoid affecting normal use.

Further, the limiting structure 22 includes: the limiting column 221, the connecting seat 21 is provided with a transverse sliding groove 211, the limiting column 221 is movably arranged in the transverse sliding groove 211, a vertical hole 212 is further formed in the middle of the connecting seat 21, an unlocking shifting handle 213 is rotatably installed in the vertical hole 212, one end of the unlocking shifting handle 213 is slidably connected with the limiting column 221, one surface of the unlocking shifting handle 213, facing the folding bicycle body 1, is further connected with a shifting handle tension spring 214, and two limiting grooves 23 are formed in one end, connected with the connecting seat 21, of the bicycle body connecting portion 20;

Further, a clamping groove 24 is formed at one end of the vehicle body connecting part 20 away from the folding pedal 10, an embedded groove 25 is formed at one end of the vehicle body connecting part 20 provided with the clamping groove 24, the embedded groove 25 is intersected with the clamping groove 24, a clamping pin 26 is slidably arranged in the embedded groove 25, the clamping pin 26 can be inserted into the clamping groove 24, a pull wire is connected to the tail end of the clamping pin 26, a spring 27 is further arranged in the clamping pin 26, and the spring 27 is used for enabling the clamping pin 26 to move towards the direction of the clamping groove 24;

Further, the vehicle body connecting part 20 is also rotatably connected with an unlocking handle 28, and one end of the unlocking handle 28 is fixedly connected with the stay wire;

Specifically, the connecting seat 21 is provided with a transverse sliding groove 211 penetrating through the connecting seat 21 along the width direction, the limit post 221 is slidably arranged in the transverse sliding groove 211, the limit post 221 can slide in the transverse sliding groove 211, meanwhile, a vertical hole 212 is formed in the middle of the connecting seat 21, an unlocking shifting handle 213 is rotatably connected in the vertical hole 212, the limit post 221 penetrates through the unlocking shifting handle 213 and is slidably connected with the unlocking shifting handle 213, the limit post 221 can vertically slide relative to the unlocking shifting handle 213, when the unlocking shifting handle 213 rotates relative to the connecting seat 21, the limit post 221 synchronously slides in the transverse sliding groove 211 and the unlocking shifting handle 213 to enable the unlocking shifting handle to displace along the transverse sliding groove 211, two ends of the limit post 221 are positioned outside the transverse sliding groove 211, two limit grooves 23 are matched with the limit post 221, the two limit posts 23 are matched with each other to limit the rotation of the connecting seat 20 through the cooperation of the limit post 221 and the limit grooves 23, in order to realize the automatic cooperation of the limit post 221, a tension spring 214 is connected to one side of the unlocking shifting handle 213 facing the folding shifting handle 1, and the other end of the tension spring 214 is connected with the tension spring 214, when the tension spring 214 rotates relative to the connecting handle 21, and the tension spring 214 is reset by the tension spring 214 is lost, and the tension spring 214 is driven by the tension spring 214 when the tension spring handle is reset, and the tension spring 214 is reset, and the tension-reset force is automatically returns when the tension handle is connected to the tension handle 213; meanwhile, a clamping groove 24 is formed in one side, far away from the connection with the folding pedal 10, of the vehicle body connecting part 20, the clamping groove 24 is matched with the wheel shaft of the directional wheel 3, the clamping groove 24 is placed on the wheel shaft to realize connection with the folding vehicle body 110, in order to prevent the clamping groove 24 from being separated from the wheel shaft, an embedded groove 25 is further formed in the vehicle body connecting part 20, a clamping pin 26 is slidably arranged in the embedded groove 25, and the end part of the clamping pin 26 can slide into the clamping groove 24 to limit the wheel shaft 13 in the clamping groove 24, so that the clamping groove and the wheel shaft are prevented from being separated from each other; in order to facilitate the later disassembly, an unlocking handle 28 is further arranged on the vehicle body connecting part 20, the middle part of the unlocking handle 28 is rotationally connected with the vehicle body connecting part 20, one end of the unlocking handle 28 is connected with the clamping pin 26 through a pull wire, when the unlocking handle 28 rotates on the vehicle body connecting part 20, the pull wire is pulled to pull the clamping pin 26 back through the pull wire to separate the clamping pin from the clamping groove 24, at the moment, the vehicle body connecting part 20 can be separated from the wheel shaft 13 of the directional wheel 3, meanwhile, a spring 27 is further arranged in the clamping pin 26, and the spring 27 slides into the clamping groove 24 against the clamping pin 26, so that the clamping pin 26 automatically penetrates into the clamping groove 24 under the action of the spring 27 after the external force of the unlocking handle 28 is lost; when the folding is needed, the limiting structure 22 can be unlocked firstly, the vehicle body connecting part 20 is parallel to the connecting seat 21, the folding pedal 10 is vertically rotated relative to the folding vehicle body 1 through the vehicle body connecting part 20, the folding pedal is vertically erected behind the folding vehicle body 1 after being rotated by about 90 degrees, and the folding pedal 10 is pulled through structural members such as a hook rope.

Further, in this embodiment, the telescopic rod 32 is further sleeved with a limiting sleeve 321, and the limiting sleeve 321 is used for limiting the telescopic rod 32 to rotate relative to the first folding member 31;

Specifically, the limiting sleeve 321 is used for limiting the rotation of the telescopic rod 32 relative to the first folding member 31, so as to prevent the telescopic rod 32 from being folded during normal use, and when the telescopic rod 32 needs to be folded, the limiting sleeve 321 is slid, so that the telescopic rod 32 is separated from the joint of the first folding member 31.

Further, in this embodiment, the end of the folding bicycle body 1 far away from the folding pedal 10 is further movably connected with a handle 4; specifically, in order to facilitate towing of the folding bicycle body 1 when not riding, a handle 4 is further connected to one end of the folding bicycle body 1 far away from the folding pedal 10, and the handle 4 can vertically rotate relative to the folding bicycle body 1, so that the inclination angle of the handle 4 can be adjusted when towing, and the labor saving of towing is improved.

Further, in this embodiment, the inner rod of the telescopic rod 32 is provided with a handle 322, the handle 322 is provided with a plurality of control keys 323, the handle 322 is further provided with a brake grip 324, the brake grip 324 controls the pedal wheel 14 to brake, and the control keys 323 are connected with the controller;

Specifically, the top end of the inner rod of the telescopic rod 32 is further provided with a handle 322, and the handle 322 is provided with a plurality of control keys 323, and functions of the plurality of control keys 323 include, but are not limited to: the functions of horn, lamplight, forward/backward mode switching, speed gear and the like are all common technologies, so the functions are not repeated herein, a valve rotating cylinder can be arranged on the handle 322 for controlling speed change after power is connected, and a brake handle is also arranged on the handle 322 and is connected with the pedal wheel 14, and the pedal wheel 14 needs to be provided with mechanical brakes such as disc brake or drum brake and the like for braking; an electric braking mode can also be adopted.

In summary, according to the folding bicycle body 1, the folding pedal 10 is connected to one end of the folding bicycle body 1, and the folding pedal 10 is used for realizing a manned function, so that the folding bicycle is more convenient and labor-saving to use, the experience of use is improved, the carrying capacity of the folding bicycle body 1 is not affected, and the practicability is improved; the folding pedal 10 is rotationally connected with the wheel shaft of the directional wheel 3, so that the stress borne by the folding car body 1 is effectively reduced, the car-overturning risk of an uphill road section is reduced, and the use stability of the folding car body 1 is improved; and the folding pedal 10 can be folded along with the folding car body 1, so that the portability of use is effectively improved.

Claims (19)

1. A folding trailer having foldable steps, comprising: the folding bicycle comprises a folding bicycle body, wherein one end of the folding bicycle body is provided with a universal wheel, the other end of the folding bicycle body is provided with a directional wheel, one end of the directional wheel is provided with a folding pedal, the folding pedal can be folded, one side of the folding pedal is provided with two bicycle body connecting parts, the bicycle body connecting parts are connected with the directional wheel in a rotating mode, the folding pedal can vertically rotate relative to the folding bicycle body through the bicycle body connecting parts, a steering rod assembly is rotatably arranged on the folding pedal, the steering rod assembly can horizontally rotate relative to the folding pedal, the bottom of the folding pedal is rotatably provided with at least one pedal wheel, the pedal wheel is in transmission connection with the steering rod assembly, the steering rod assembly controls the pedal wheel to turn, the folding bicycle body and/or the folding pedal are/is provided with a controller and a power supply connected with the controller, and the directional wheel and/or the pedal wheel are connected with the controller.

2. The folding trailer having a foldable step as in claim 1, wherein the foldable step comprises: folding the bracket and the folding plate; the folding support can be folded from left and right sides to the middle, a direction stay bar is connected to the front end bottom of the folding support in a limiting and rotating mode, the direction stay bar assembly is connected with the direction stay bar in a rotating mode, the direction stay bar assembly can horizontally rotate relative to the direction stay bar, the car body connecting portion is located on two sides, provided with the direction stay bar, of the folding support, the folding plate is arranged in a foldable mode, and the folding plate is laid above the folding support.

3. The folding trailer with the foldable pedal according to claim 2, wherein a direction avoidance hole matched with the steering rod assembly is formed in one side of the folding plate, the folding plate is formed by hinging a plurality of plates end to end in sequence, a positioning column is arranged on the folding plate at a preset position, and a positioning hole matched with the positioning column is formed in the folding support.

4. The folding trailer having a foldable pedal as in claim 2, wherein the folding bracket comprises: a telescopic sleeve and a supporting frame; the telescopic tube is provided with two, the support frame is "X" shape, the support frame is located two between the telescopic tube, the tip of support frame with corresponding telescopic tube rotates to be connected, two body coupling portion is located two telescopic tube's front end, and with telescopic tube's inner tube fixed connection, every telescopic tube's outer tube tail end fixedly connected with connecting block, the footboard wheel with the bottom of connecting block rotates to be connected, the support frame with corresponding the spacing rotation of lateral part of connecting block is connected, the direction vaulting pole is located two telescopic tube's front end, and with telescopic tube's outer tube is spacing to rotate to be connected.

5. The folding trailer having a foldable pedal as in claim 4, wherein the direction stay comprises: a first brace and a second brace; the one end of first vaulting pole with the second vaulting pole is equipped with the ring cover respectively, first vaulting pole with the second vaulting pole is passed through the ring cover rotates to be connected together, first vaulting pole with the second vaulting pole is kept away from and is equipped with the one end of ring cover respectively with the spacing rotation of corresponding telescopic tube is connected, first vaulting pole with the second vaulting pole parallel and level.

6. The folding trailer with foldable pedals as in claim 5, wherein two pedal wheels are provided, each pedal wheel is provided with a wheel swing arm, a transmission rod is rotatably connected between the two wheel swing arms, the transmission rod is arranged in a folding manner, and two ends of the transmission rod can be folded horizontally from the middle.

7. The folding trailer having a foldable pedal as in claim 6, wherein the steering rod assembly comprises: the first folding piece, the telescopic rod and the telescopic supporting tube; one end of the telescopic supporting tube is connected with the middle part of the direction supporting rod, the other end of the telescopic supporting tube is provided with a transmission assembly, the transmission assembly is in transmission connection with the transmission rod, one end of the first folding piece is in transmission connection with the telescopic supporting tube, the first folding piece can horizontally rotate relative to the telescopic supporting tube, the other end of the first folding piece is in transmission connection with the telescopic rod, the telescopic rod can vertically rotate relative to the first folding piece, and one end of the first folding piece, which is connected with the telescopic supporting tube, is in transmission connection with the transmission assembly.

8. The folding trailer having a foldable pedal as in claim 7, wherein a drive gear is provided at an end of the first folding member connected to the telescoping tube, the drive assembly comprising: the driven gear is rotationally arranged at one end, far away from the first folding piece, of the telescopic supporting tube, a direction swing arm is fixedly connected to the driven gear, the transmission rod is rotationally connected with the direction swing arm, and the transmission gear is in transmission connection with the driven gear.

9. The folding trailer with the foldable pedal according to claim 8, wherein a limiting chute is formed in one end of the direction swing arm, a sliding shaft is arranged in the middle of the transmission rod, the sliding shaft is matched with the limiting chute, and the middle of the transmission rod slides along the limiting chute through the sliding shaft.

10. The folding trailer with the foldable pedal according to claim 9, wherein two limiting blocks are further arranged at the bottom of one end of the direction swing arm, which is provided with a limiting chute, the opposite sides of the two limiting blocks are respectively in slope transition, and a clamping block is further arranged on the sliding shaft in a sliding manner.

11. The folding trailer with foldable pedals according to claim 8, wherein the telescopic support tube is fixedly connected with the middle part of the supporting frame, the inner tube of the telescopic support tube is connected with the middle part of the direction support rod, the inner tube of the telescopic support tube is provided with a position avoidance chute, the bottom of the first folding piece passes through the position avoidance chute to penetrate out of the telescopic support tube, the transmission gear is fixedly connected with the bottom of the first folding piece, and the driven gear is rotatably connected with the outer tube of the telescopic support tube.

12. The folding trailer with the foldable pedal as set forth in claim 1, wherein a connecting seat is rotatably connected to one end of the vehicle body connecting portion, the connecting seat is fixedly connected to the foldable pedal, the connecting seat is provided with a limiting structure, and the limiting structure is used for limiting rotation of the vehicle body connecting portion relative to the connecting seat.

13. The folding trailer having a foldable pedal as in claim 12, wherein the limit structure comprises: the connecting seat is provided with a transverse sliding groove, the transverse sliding groove is movably arranged in the transverse sliding groove, a vertical hole is further formed in the middle of the connecting seat, an unlocking shifting handle is rotatably arranged in the vertical hole, one end of the unlocking shifting handle is slidably connected with the limiting column, a shifting handle tension spring is further connected to one face of the unlocking shifting handle, facing the folding car body, of the connecting seat, and two limiting grooves are formed in one end, connected with the connecting seat, of the car body connecting portion.

14. The folding trailer with the foldable pedal according to claim 13, wherein a clamping groove is formed in one end, far away from the foldable pedal, of the vehicle body connecting portion, an embedded groove is formed in one end, provided with the clamping groove, of the vehicle body connecting portion, the embedded groove is intersected with the clamping groove, a clamping pin is slidably arranged in the embedded groove, the clamping pin can be inserted into the clamping groove, a pull wire is connected to the tail end of the clamping pin, and a spring is further arranged in the clamping pin and used for enabling the clamping pin to move towards the direction where the clamping groove is located.

15. The folding trailer with foldable pedals as claimed in claim 14, wherein the vehicle body connecting portion is further rotatably connected with an unlocking handle, one end of which is fixedly connected to the pull wire.

16. The folding trailer with foldable footrests of claim 7, wherein the telescoping rod is further sleeved with a limit sleeve for limiting the rotation of the telescoping rod relative to the first folding member.

17. The folding trailer with foldable steps of claim 1, wherein the end of the folding body remote from the folding steps is further movably connected with a handle.

18. The folding trailer with foldable pedals as in claim 7, wherein the inner rod of the telescopic rod is provided with a handle, a plurality of control keys are arranged on the handle, the handle is further provided with a braking grip, the braking grip controls the pedal wheels to brake, and the control keys are connected with the controller.

19. The folding trailer with foldable pedals as in claim 8, further comprising a counter gear between the drive gear and the driven gear, wherein the counter gear is provided in a double layer, one layer of the counter gear is meshed with the drive gear, and the other layer is in driving connection with the driven gear.