CN117022415B - A linked folding structure for a passenger-carrying folding electric trailer - Google Patents
A linked folding structure for a passenger-carrying folding electric trailerInfo
- Publication number
- CN117022415B CN117022415B CN202311039657.4A CN202311039657A CN117022415B CN 117022415 B CN117022415 B CN 117022415B CN 202311039657 A CN202311039657 A CN 202311039657A CN 117022415 B CN117022415 B CN 117022415B
- Authority
- CN
- China
- Prior art keywords
- rod
- folding
- linkage
- limiting
- outer support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/001—Steering devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/08—Children's seats ; Seats or supports for other persons
- B62B5/087—Platforms to stand upon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/30—Detachable, retractable or collapsible load supporting means
- B62B2205/32—Shelves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Handcart (AREA)
Abstract
The application discloses a linkage folding structure of a foldable electric trailer capable of carrying people, which comprises a folding vehicle body, wherein two ends of the folding vehicle body are provided with an inner supporting rod and an outer supporting rod which are sleeved in a sliding way, at least two outer supporting rods at one end of the folding vehicle body are respectively connected with a linkage mechanism in a rotating way, one end of the linkage mechanism is connected with a steering mechanism in a rotating way, at least one first wheel is connected below the steering mechanism, the linkage mechanism is used for pulling the steering mechanism to move and limiting the steering mechanism to rotate, the folding vehicle body is also provided with a second wheel, a controller and a power supply.
Description
Technical Field
The invention relates to the technical field of folding electric trailers, in particular to a linkage folding structure of a foldable electric trailer capable of carrying a person.
Background
The foldable trailer is a foldable and draggable carrying vehicle, is convenient to store and store due to simple use and can be widely applied to outdoor activities or short-distance transportation when carrying things.
At present, most of the existing folding electric trailers only realize electric power assistance, such as patent number CN202220922980.0 (power-assisted trailer), although the convenience is improved, the use is easier, but according to the description and the content recorded in the description, the existing folding electric trailers can not realize manned operation, and when in use, the existing folding electric trailers also need to be manually towed, and the user is required to walk on foot, so that the user is easy to feel tired, the use experience is poor, the inventor designs an electric scooter capable of realizing manned operation, such as patent number CN202310568322.5, (a folding electric trailer with sliding wheels) by rotating a supporting rod at the front end of a vehicle body, wheels are arranged on the supporting rod in a sliding manner, the supporting rod is put down and slide to the front end of the supporting rod during use, the manned operation is realized, the trailer can realize the function of manned operation, the use convenience is greatly improved, and the user is required to walk on foot, the carrying convenience is easily brought to the user, but in the practical use, the inventor has a complicated folding structure when the folding electric trailer is found, the wheels need to move to the front end of the vehicle body relatively, and the limit structure is relatively complicated in a folding manner.
Accordingly, there is a need to design a ganged folding structure for a collapsible electric trailer that overcomes one or more of the above-described deficiencies in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems, and adopts the technical scheme that the linkage folding structure of the foldable electric trailer capable of carrying people is characterized by comprising a foldable vehicle body, wherein the foldable vehicle body is a gathering type vehicle body, an inner supporting rod and an outer supporting rod which are sleeved in a sliding way are respectively arranged at the two sides of the front end and the rear end of the foldable vehicle body, at least two outer supporting rods at one end are respectively and rotatably connected with a linkage mechanism, one end of the linkage mechanism, which is far away from the outer supporting rod, is rotatably connected with a steering mechanism, at least one first wheel is connected below the steering mechanism, the steering mechanism controls the direction of the first wheel, the linkage mechanism is used for pulling the steering mechanism to move towards the direction of the foldable vehicle body and limiting the steering mechanism to rotate relative to the linkage mechanism when the outer supporting rod rotates, a second wheel is further arranged at the bottom of the foldable vehicle body, the second wheel is arranged at intervals with the first wheel, the foldable vehicle body is further provided with a controller and a power supply which is electrically connected with the controller, and/or the first wheel and/or the second wheel is electrically connected with the controller for driving the foldable vehicle.
In a preferred embodiment, the outer support rods slide relative to the inner support rods, the bottom ends of the two outer support rods are fixedly connected with an adapter, one end of the adapter horizontally extends, one end of the adapter, which is far away from the outer support rods, is provided with a notch with an open bottom, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, two opposite side walls of the notch are provided with vertical downward extension parts, and when the outer support rods slide relative to the inner support rods, the adapter is driven to ascend or descend, and the adapter drives the linkage mechanism to rotate relative to the adapter.
In a preferred embodiment, the inner support rod slides relative to the outer support rod, the bottom ends of the two outer support rods are both connected with an adapter in a sliding manner, one end of the adapter horizontally extends, one end of the adapter, which is far away from the outer support rod, is provided with a notch with an open bottom, one end of the linkage mechanism is inserted into the notch and is rotationally connected with the notch, one side wall, which is opposite to the notch, is provided with a vertical downward extension part, and when the adapter slides relative to the outer support rod, the linkage mechanism is driven to rotate relative to the adapter.
In a preferred embodiment, a foldable synchronizing rod is further arranged between the two switching pieces, spring clamping pins are respectively arranged at two ends of the synchronizing rod, one end of each spring clamping pin penetrates through the side wall of each switching piece and is located in the notch, a fixing block is further arranged at the bottom end of each outer supporting rod and located below each switching piece, holes matched with the corresponding spring clamping pins are formed in the fixing block, a pull wire is arranged on each synchronizing rod in a penetrating mode, and the corresponding spring clamping pins are connected at two ends of each pull wire.
In a preferred embodiment, the linkage mechanism comprises a pedal rod and a limiting rod, wherein the same ends of the pedal rod and the limiting rod are respectively and rotatably connected with the outer supporting rod, the other ends of the pedal rod and the limiting rod are respectively and rotatably connected with the direction control mechanism, and the two ends of the pedal rod and the limiting rod are arranged in a non-coaxial way.
In a preferred embodiment, the pedal lever and the limit lever are arranged in a staggered manner in the vertical projection direction.
In a preferred embodiment, the outer support rod and the inner support rod are respectively fixedly connected with a frame connecting seat, the frame connecting seat connected with the outer support rod is arranged at intervals with the frame connecting seat connected with the inner support rod, and the frame connecting seat connected with the inner support rod is provided with an embedded groove for allowing the outer support rod to be inserted into one end of the outer support rod far away from the connecting frame connecting seat.
In a preferred embodiment, the steering mechanism comprises a steering rod assembly, a connecting assembly and a connecting rod assembly, wherein two first wheels are arranged and are respectively and rotatably connected with two ends of the connecting assembly, one side of each first wheel, which is away from the folding car body, is provided with a horizontally extending wheel swing arm, the steering rod assembly penetrates through the middle part of the connecting assembly, the bottom of the steering rod assembly is in transmission connection with the middle part of the connecting rod assembly, two ends of the connecting rod assembly are respectively and rotatably connected with the corresponding wheel swing arms, the steering rod assembly controls the direction of the first wheels through the connecting rod assembly, and two ends of the connecting assembly are respectively and rotatably connected with the corresponding linkage mechanism.
In a preferred embodiment, the connecting assembly comprises a folding piece, wherein the folding piece is arranged on the outer side of the control rod, two ends of the folding piece are respectively and rotatably connected with a first connecting rod, one end, far away from the folding piece, of each first connecting rod is respectively and rotatably connected with a second connecting rod, the first wheel is rotatably connected with the second connecting rod, the side wall of the second connecting rod is rotatably connected with the linkage mechanism, a connecting limiting device used for limiting the rotation of the first connecting rod is further arranged on the folding piece, and one side, adjacent to the first connecting rod, of each second connecting rod is rotatably connected with the linkage mechanism.
In a preferred embodiment, the connecting limiting device comprises a pressing rod, wherein the middle part of the pressing rod is provided with a pressing block, the pressing rod is slidably arranged in the middle part of the folding piece, the top of the pressing rod is detachably connected with a pressing handle, limiting pins are slidably arranged in two ends of the folding piece respectively, the pressing rod is positioned between the two limiting pins, one ends of the two limiting pins, which are opposite, are inclined planes, the two limiting pins are respectively provided with a reset spring, the limiting pins move towards the direction of the pressing rod through the reset springs, and pin holes which correspond to and are matched with the limiting pins are formed in one ends of the two first connecting rods, which are connected with the folding piece.
In a preferred embodiment, the connecting rod assembly comprises a first transmission rod and second transmission rods which are arranged at two ends of the first transmission rod and are respectively connected with the first transmission rod in a rotating mode, one ends, far away from the first transmission rod, of the two second transmission rods are rotatably connected with third transmission rods, one ends, far away from the second transmission rods, of the third transmission rods are rotatably connected with corresponding wheel swing arms, a direction connecting rod is movably connected in the middle of the first transmission rod, and the direction connecting rod is fixedly connected with the bottom end of the direction rod assembly.
In a preferred embodiment, the steering rod assembly comprises an outer rod, an inner rod and a turning rod, wherein the turning rod penetrates through the first wheel assembly, the top of the turning rod is rotationally connected with the outer rod, the inner rod is slidably arranged in the outer rod, the top end of the inner rod is connected with a steering handle, and a limiting assembly is arranged in one end, connected with the turning rod, of the outer rod and used for limiting rotation of the outer rod relative to the turning rod.
In a preferred embodiment, the direction handle is annular, two sides of the direction handle are respectively provided with folding grooves, the same ends of the two folding grooves are rotatably connected with holding rods, one holding rod is rotatably arranged, one end of the holding rod connected with the folding grooves is further provided with a handle limiting bayonet lock, the handle limiting bayonet lock is used for limiting when the holding rod is stored in the folding grooves or when the holding rod is horizontal relative to the handle ring, and the direction handle is further provided with a plurality of control keys and a display device which are respectively electrically connected with the controller.
In a preferred embodiment, the inner rod is internally provided with a telescopic bayonet, the outer rod is provided with a plurality of telescopic bayonet holes matched with the telescopic bayonet, and the inner wall of the bottom of the steering handle is also provided with a telescopic button for controlling the telescopic bayonet to extend and retract.
The folding bicycle has the beneficial effects that the two pedal rods are connected with the outer support rod, so that the folding bicycle body synchronously drives the pedal rods and the steering mechanism to fold when being folded, the rotation of the first wheel relative to the pedal rods is limited through the arrangement of the limiting rods, and the normal use is prevented from being influenced.
Drawings
FIG. 1 is a schematic view of a usage state 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 of the structure of the connecting assembly and the linkage mechanism of the present invention;
FIG. 4 is a cross-sectional view of the connection limiting device of the present invention;
FIG. 5 is a schematic view of the steering rod assembly of the present invention;
FIG. 6 is a cross-sectional view of the steering rod assembly of the present invention;
FIG. 7 is a schematic view of a connecting rod assembly of the present invention;
FIG. 8 is a folded state diagram of the present invention;
FIG. 9 is a schematic view of a second embodiment of a linkage mechanism according to the present invention;
FIG. 10 is a schematic circuit diagram of a controller according to the present invention;
fig. 11 is a block diagram of an electrical connection of the present invention.
In the figure:
10. Folding car body, 11, outer support rod, 111, car frame connecting seat, 112, fixing block, 12, inner support rod, 13, adapter, 14, notch, 15, extension part, 16, embedded groove, 17, second wheel, 18, controller, 19, power supply;
20. A linkage mechanism; 21, pedal lever, 22, limit the turning lever;
30. Steering mechanism, 31, steering rod assembly, 311, outer rod, 3111, telescopic clamping hole, 312, inner rod, 3121, telescopic clamping pin, 313, turning rod, 314, steering handle, 3141, telescopic button, 315, folding groove, 316, holding rod, 317, handle limit clamping pin, 318, control button, 319, display device, 32, limit assembly, 321, limit folding bolt, 322, bolt head, 323, rotating shaft sliding groove, 324, limit folding return spring, 33, connecting assembly, 331, folding piece, 332, first connecting rod, 3321, pin hole, 333, second connecting rod, 34, connecting limit device, 341, pressing rod, 342, extrusion block, 343, pressing handle, 344, limit pin, 345, return spring, 35, connecting rod assembly, 351, first transmission rod, 352, second transmission rod, 353, third transmission rod, 354, steering link, 36, first wheel, 361, wheel swing arm;
40. the synchronous rod, 41, the spring bayonet lock, 42, the acting as go-between.
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 construed broadly, and for example, "coupled" may be either detachably or non-detachably, and may be either directly or indirectly via 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 invention, "and/or" is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate that a exists alone, and 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. 1-11, the invention provides a linkage folding structure of a foldable electric trailer capable of carrying people, comprising a foldable vehicle body 10, wherein the foldable vehicle body 10 is a gathering type vehicle body, two sides of the front end and the rear end of the foldable vehicle body 10 are respectively provided with an inner supporting rod 12 and an outer supporting rod 11 which are sleeved in a sliding way, at least two outer supporting rods 11 at one end are respectively connected with a linkage mechanism 20 in a rotating way, one end of the linkage mechanism 20 far away from the outer supporting rod 11 is connected with a steering mechanism 30 in a rotating way, at least one first wheel 36 is connected below the steering mechanism 30, the steering mechanism 30 controls the direction of the first wheel 36, the linkage mechanism 20 is used for pulling the steering mechanism 30 to move towards the direction of the foldable vehicle body 10 and limiting the steering mechanism 30 to rotate relative to the linkage mechanism 20, the bottom of the foldable vehicle body 10 is also provided with a second wheel 17, the first wheel 17 is arranged at intervals with the second wheel 36, the foldable vehicle body 10 is also provided with a controller 18 and a first wheel 36 or a second wheel 18 and a power supply 18, and a driving controller 18 are electrically connected with the first wheel 36;
Specifically, in this embodiment, the folding cart body 10 is a gathering cart body, that is, the folding cart body 10 is folded from front, rear, left and right to middle, four supporting rods which are formed by sleeving an inner supporting rod 12 and an outer supporting rod 11 are arranged on the folding cart body 10, and are respectively positioned at two sides of the front end and two sides of the rear end of the folding cart body 10, wherein the outer supporting rod 11 is positioned at the outer side of the inner supporting rod 12, a linkage mechanism 20 is rotationally connected at the bottom end of the outer supporting rod 11, the linkage mechanism 20 can rotate relative to the outer supporting rod 11, and the linkage mechanism 20 is only provided with two linkage mechanisms which are respectively positioned at one end of the folding cart body 10 or two by two or are respectively positioned at the front end or the rear end of the folding cart body 10, and can be determined according to actual use requirements, a steering mechanism 30 is rotationally connected at one end of the linkage mechanism 20 far from the outer supporting rod 11, the linkage mechanism 20 can rotate relative to the steering mechanism 30, and when the outer supporting rod 11 slides up and down relative to the inner supporting rod 12, and the linkage mechanism 20 is lifted up or lowered, and the other end of the linkage mechanism 20 is rotationally controlled to be prevented from being connected with the folding cart body 10 or from being turned to the steering mechanism 30 when the folding cart body 10 is controlled to be turned to be far away from the folding mechanism 10 or turned away from the steering mechanism 30; a first wheel 36 is connected below the steering mechanism 30, and the first wheel 36 may be one or two, and when the first wheel 36 is selected as one, the first wheel 36 needs to be disposed below the middle of the steering mechanism 30, and when the first wheel 36 is provided with two, the two first wheels 36 are arranged at intervals according to the requirement, wherein the interval distance affects the running stability of the electric trailer, the stability with large distance is better than that with small distance, in the application, in order to promote the stability of the electric trailer when running, preferably, the two first wheels 36 are arranged, and the width middle line of the two first wheels 36 corresponds to the axis of the supporting rod 11 up and down, the two first wheels 36 are in transmission connection with the steering mechanism 30, the steering mechanism 30 can control the two first wheels 36 to synchronously steer, the bottom of the folding car body 10 is also provided with the second wheels 17, the second wheels 17 are arranged at intervals with the first wheels 36, the second wheels 17 can be one or two, wherein, the total number of the first wheels 36 and the second wheels 17 needs at least three, preferably, the two first wheels and the four first wheels are better in stability, and the point out that when the front end and the rear end of the folding car body 10 are both provided with the linkage mechanism 20 and the steering mechanism 30, the first wheels 17 need to be arranged below the steering mechanism 30 at the rear end so as to realize synchronous steering of the two first wheels 36 and synchronous, the second wheels 17 are also arranged at the bottom of the folding car body 10, the second wheels 17 and the first wheels need not to be arranged in the same direction, and the first wheels need to be more easily controlled in the first wheels 17, and the first wheels need not to be far away from the first wheels 17, and the first wheels need to be arranged in the opposite direction; a controller 18 and a power supply 19 are also provided on the folding bodywork 10, in this embodiment, the first wheel 36 and the second wheel 17 may be driving wheels with in-wheel motors, or alternatively one of the first wheel 36 and the second wheel 17 may be the driving wheel, where it should be noted that if the folding car body 10 is provided with the third wheel and a single driving is used, the wheel at the end far from the control direction is avoided being the driving wheel, so that the friction between the driving wheel and the ground is not enough to prevent skidding, and the four driving wheels are not affected.
Further, the bottom ends of the two outer support rods 11 are fixedly connected with an adaptor 13, one end of the adaptor 13 extends horizontally, one end of the adaptor 13 away from the outer support rod 11 is provided with a notch 14 with an opening at the bottom, one end of the linkage mechanism 20 is inserted into the notch 14 and is rotationally connected with the notch 14, one side wall opposite to the two notches 14 is provided with a vertical downward extension part 15, when the outer support rod 11 slides relative to the inner support rod 12, the adaptor 13 is driven to rise or fall, and the adaptor 13 drives the linkage mechanism 20 to rotate relative to the adaptor 13;
Specifically, the linkage mechanism 20 is driven in two modes, namely, the outer support rod 11 slides relative to the inner support rod 12, an adaptor 13 can be fixedly connected to the bottom end of the outer support rod 11, one end of the adaptor 13 horizontally extends out, one end of the adaptor 13 far away from the outer support rod 11 is provided with a notch 14 with an opening on the bottom surface, the notch 14 is matched with the linkage mechanism 20, one end of the linkage mechanism 20 far away from the steering mechanism 30 is inserted into the notch 14 and rotationally connected with the notch 14, so that the linkage mechanism 20 can rotate downwards relative to the adaptor 13, when the outer support rod 11 slides upwards relative to the inner support rod 12, the adaptor 13 is driven to rise, at the moment, only one end of the linkage mechanism 20 connected with the adaptor 13 rises under the limitation of the gravity of the steering mechanism 30, and in the rising process, the linkage mechanism 20 rotates downwards relative to the adaptor 13, and one end of the linkage mechanism 20 connected with the steering mechanism 30 can only vertically move upwards, so that the end of the linkage mechanism 20 connected with the steering mechanism 30 can be pulled to the folding car body 10, and the linkage mechanism 20 is pulled upwards to the folding end of the steering mechanism 10; when the outer support rod 11 descends relative to the inner support rod 12, the steering mechanism 30 is pushed to move away from the folding bicycle body 10 until the outer support rod 11 descends completely to a position, and the linkage mechanism 20 is in a horizontal state, so that a user can stand on the linkage mechanism, and in this way, the outer support rod 11 and the inner support rod 12 are in a sliding fit state in order to realize the folding of the bicycle frame, and the folding bicycle body 10 can drive the relative sliding of the outer support rod 11 or the inner support rod 12 when the folding bicycle body 10 is folded, the outer support rod 11 drives the linkage mechanism 20 to ascend or descend by virtue of the sliding motion made by the outer support rod when the folding car body 10 is folded, so that the folding of the linkage mechanism 20 and the steering mechanism 30 is realized, the folding motion is synchronous with the folding of the folding car body 10, namely, the folding car body 10 drives the linkage mechanism 20 and the steering mechanism 30 to fold synchronously when being folded, the unfolding is the same, the folding motion is not needed, the use is simpler, the convenience and the rapidness are realized, the structure is reasonable, the support is ensured, the structure is simpler, and the folding car body 10 can not fold by itself when the folding car body 10 is not subjected to folding force, so that the folding of the linkage mechanism 20 is synchronously limited, and the limit structure on the linkage mechanism 20 is not needed.
Further, a frame connecting seat 111 is fixedly connected to the outer support rod 11 and the inner support rod 12, which are sleeved with each other, the frame connecting seat 111 connected to the outer support rod 11 is arranged at intervals with the frame connecting seat 111 connected to the inner support rod 12, and an embedded groove 16 for inserting one end of the outer support rod 11 far away from the connecting frame connecting seat 111 is arranged on the frame connecting seat 111 connected to the inner support rod 12;
Specifically, each of the outer support rod 11 and the inner support rod 12 is fixedly connected with a frame connecting seat 111, the frame connecting seats 111 are used for connecting with the frame, the frame connecting seats 111 of the outer support rod 11 and the inner support rod 12 sleeved inside and outside are located above, one is located below, namely, the frame connecting seat 111 connected with the outer support rod 11 is located at the top end of the outer support rod 11, the frame connecting seat 111 connected with the inner support rod 12 is located at the bottom end of the inner support rod 12, and because the outer support rod 11 slides relative to the inner support rod 12, the pedal rod 21 is connected with the outer support rod 11 through the adapting piece 13, the pedal rod 21 is used for standing a person, at the moment, acting force is transmitted from the pedal rod 21 to the outer support rod 11, pulling force is generated on the outer support rod 11, in order to promote pulling force of the pedal rod 21 by the outer support rod 11, meanwhile, stability of the outer support rod 11 is promoted, an embedded groove 16 adapted to the outer diameter of the outer support rod 11 is formed in the frame connecting seat 111, but when the outer support rod 11 slides downwards, the end portion is directly inserted into the embedded groove 16, wherein in order to enable the bottom end of the outer support rod 11 to be inserted into the embedded groove 16, and the bottom end 13 of the outer support rod 11 needs to be penetrated out of the adapting piece 13.
Further, in this embodiment, the inner support rods 12 slide relative to the outer support rods 11, the bottom ends of the two outer support rods 11 are both slidably connected with an adaptor 13, one end of the adaptor 13 extends horizontally, a notch 14 with an opening at the bottom is formed at one end of the adaptor 13 away from the outer support rods 11, one end of the linkage mechanism 20 is inserted into the notch 14 and is rotationally connected with the notch 14, a vertical downward extension part 15 is formed at one side wall opposite to the two notches 14, and when the adaptor 13 slides relative to the outer support rods 11, the linkage mechanism 20 is driven to rotate relative to the adaptor 13;
Specifically, the linkage mechanism 20 is driven in two modes, namely, the inner support rod 12 slides relative to the outer support rod 11, the adaptor 13 is arranged on the outer support rod 11 in a sliding mode, one end of the adaptor 13 horizontally extends out, one end of the adaptor 13 far away from the outer support rod 11 is provided with a notch 14 with an opening at the bottom surface, the notch 14 is matched with the linkage mechanism 20, one end of the linkage mechanism 20 far away from the steering mechanism 30 is inserted into the notch 14 and is rotationally connected with the notch 14, so that the linkage mechanism 20 can rotate downwards relative to the adaptor 13, and when the adaptor 13 slides relative to the outer support rod 11, one end of the linkage mechanism 20 connected with the adaptor 13 is driven to ascend or descend, and the linkage mechanism 20 drives the steering mechanism 30 to approach or be far away from a vehicle body; in this way, because the user stands on the linkage mechanism 20 when in use and is pressed by the user, the linkage mechanism 20 does not have the self-folding condition when in use, and therefore, the limit structure does not need to be arranged on the linkage mechanism 20, compared with the first mode, the mode is different in that the linkage mechanism 20 and the direction control mechanism 30 are not driven to fold synchronously when the folding car body 10 is folded, and the folding action needs to be additionally carried out, if the synchronous folding is needed, because the mode is realized, when the folding car body 10 is folded, the outer support rod 11 is not moved, the inner support rod 12 slides relative to the outer support rod 11, and therefore, the connecting piece is required to be arranged at the top of the inner support rod 12 and is connected with the adapter piece 13, and the adapter piece 13 is driven to slide synchronously when the outer support rod 11 slides through the connecting piece, so that the synchronous folding can be realized, and the two modes can be determined according to the actual use requirement, in the application, because the mode is provided with more connecting pieces than the first mode, the cost is relatively increased, the first approach is therefore preferred.
Further, in the present embodiment, the linkage mechanism 20 includes a pedal lever 21 and a rotation limiting lever 22, wherein the same ends of the pedal lever 21 and the rotation limiting lever 22 are respectively rotatably connected with the outer support rod 11, the other ends are respectively rotatably connected with the direction control mechanism 30, and the two ends of the pedal lever 21 and the rotation limiting lever 22 are not coaxially arranged;
Specifically, the linkage mechanism 20 comprises a pedal rod 21 and a limit rotating rod 22, wherein one end of the pedal rod 21 is inserted into the notch 14 of the adapter 13 and is rotationally connected with the notch 14, the other end of the pedal rod is rotationally connected with the direction control mechanism 30, one end of the limit rotating rod 22 is rotationally connected with the extension part 15 of the adapter 13, and the other end of the limit rotating rod is rotationally connected with the direction control mechanism 30, and two ends of the limit rotating rod 22 and two ends of the pedal rod 21 are positioned on a non-same axis, so that the rotation of the direction control mechanism 30 relative to the pedal rod 21 and the limit rotating rod 22 is limited through two connection points of the limit rotating rod 22 and the pedal rod 21, and the influence on use is avoided.
Further, the pedal rod 21 and the limit rotating rod 22 are arranged in a staggered manner in the vertical projection direction;
Specifically, since the pedal rod 21 and the limit lever 22 are vertical when being folded, the pedal rod 21 and the limit lever 22 cannot be vertical to avoid mutual influence between the pedal rod 21 and the limit lever 22 after being folded, so that the interval distance between the pedal rod 21 and the limit lever 22 is required to be enlarged, the front-back distance after being folded is larger, the pedal rod 21 and the limit lever 22 are arranged in a staggered manner in the vertical projection direction, specifically, the limit lever 22 is arranged on the outer side wall of the adapter 13, the pedal rod 21 is arranged in the adapter 13, and the side wall of the adapter 13 is arranged between the pedal rod 21 and the limit lever 22 at intervals.
Further, in this embodiment, the steering mechanism 30 includes a steering rod assembly 31, a connecting assembly 33, and a link assembly 35, wherein two first wheels 36 are provided, the two first wheels 36 are respectively rotatably connected with two ends of the connecting assembly 33, one side of the two first wheels 36 facing away from the folding cart body 10 is provided with a horizontally extending wheel swing arm 361, the steering rod assembly 31 is threaded through the middle part of the connecting assembly 33, the bottom of the steering rod assembly 31 is in transmission connection with the middle part of the link assembly 35, two ends of the link assembly 35 are respectively rotatably connected with the corresponding wheel swing arm 361, the steering rod assembly 31 controls the orientation of the first wheels 36 through the link assembly 35, and two ends of the connecting assembly 33 are respectively rotatably connected with the corresponding link mechanism 20;
Specifically, the steering mechanism 30 includes a steering rod assembly 31, a connecting assembly 33, and a connecting rod assembly 35, wherein two ends of the connecting assembly 33 are respectively rotatably connected with a corresponding pedal rod 21 and a corresponding limit rod 22, the steering rod assembly 31 is arranged in the middle of the connecting assembly 33 in a penetrating manner, the bottom end of the steering rod assembly passes through the connecting assembly 33 to be connected with the connecting rod assembly 35, the steering rod assembly 31 can rotate in situ relative to the connecting assembly 33, in this embodiment, two first wheels 36 are rotatably arranged at two ends of the connecting assembly 33, the two first wheels 36 can rotate in situ relative to the connecting assembly 33, one surface of each first wheel 36, which is away from the folding bicycle body 10, is provided with a horizontally extending wheel swing arm 361, and the two first wheels 36 are respectively rotatably connected with two ends of the connecting rod assembly 35 through the wheel swing arm 361.
Further, the connecting assembly 33 includes a folding member 331, the folding member 331 is disposed at an outer side of the control rod, two ends of the folding member 331 are respectively rotatably connected with a first connecting rod 332, one end of each of the two first connecting rods 332 away from the folding member 331 is respectively rotatably connected with a second connecting rod 333, the first wheel 36 is rotatably connected with the second connecting rod 333, a side wall of the second connecting rod 333 is rotatably connected with the linkage mechanism 20, a connection limiting device 34 for limiting rotation of the first connecting rod 332 is further disposed on the folding member 331, and one side of each of the second connecting rods 333 adjacent to the first connecting rod 332 is rotatably connected with the linkage mechanism 20;
Specifically, the folding piece 331 is sleeved outside the bottom of the steering rod assembly 31, the folding piece 331 and the steering rod assembly 31 can be connected together through a bearing, the steering rod assembly 31 can be prevented from moving vertically relative to the folding piece 331 while the steering rod assembly 31 is not prevented from rotating relative to the folding piece 331, the bottom of the steering rod assembly 31 penetrates out of the folding piece 331, the two ends of the folding piece 331 are respectively connected with a first connecting rod 332 in a rotating manner through rotating shafts, one ends of the two first connecting rods 332, which are far away from the folding piece 331, are respectively connected with a second connecting rod 333 in a rotating manner through rotating shafts, the two first wheels 36 are connected below one ends of the second connecting rods 333, which are far away from the first connecting rods 332, through rotating shafts, and meanwhile, the second connecting rods 333 are connected with the pedal rod 21 in a rotating manner towards one side of the folding body 10, wherein the limiting rod 22 is also connected with the second connecting rods 333 in a rotating manner, when the steering rod assembly 31 is subjected to upward force, the first connecting rods 332 can move upwards relative to the folding piece 331, at the moment, the first connecting rods 332 are connected with the pedal rod 21 in a rotating manner in a 90 ° in the vertical direction, and the second connecting rods 333 are connected with the pedal rod 21 in a rotating manner, and the rotating relatively limited by the second connecting rods 332 are not connected with the first connecting rods 333; because the folding piece 331 is freely rotatably connected with the first connecting rod 332, in order to prevent the folding piece 331 from being driven by the steering rod assembly 31 to move up and down to influence normal use in use, the middle part of the folding piece 331 is provided with the connecting limiting device 34, the connecting limiting device 34 is used for limiting the rotation of the first connecting rod 332 relative to the folding piece 331, thereby ensuring that the first connecting rod 332 can be prevented from rotating when needed, and ensuring the use safety and the use experience.
It should be noted that, because the first connecting rod 332 is rotationally connected to the folding member 331 and the second connecting rod 333, in order to avoid the sinking condition of the first connecting rod 332 in the normal use condition, rounded corners are respectively disposed at two ends of the folding member 331, and only an upper side or a lower side of each end of the folding member 331 is disposed with the rounded corners, and the positions are related to the rotation direction of the first connecting rod 332, if the first connecting rod 332 rotates downward relative to the folding member 331 in the horizontal state, the rounded corners of the end are located at the lower side, and the first connecting rod 332 rotates upward relative to the second connecting rod 333 in the horizontal state, the rounded corners of the end are located at the upper side. Wherein, the rounded corners can be arranged at both ends of the first connecting rod 332 or one of the folding member 331 and the second connecting rod 333 respectively, in order to avoid influencing the structure of the first connecting rod 332, a rounded corner is selected to be disposed at the end of the folding member 331 and the end of the second connecting rod 333 connected to the first connecting rod 332.
The connection point between the pedal lever 21 and the second connection rod 333 and the connection point between the first wheel 36 and the second connection rod 333 should be avoided on the same vertical line, so that the point of the pedal lever 21 acting on the second connection rod 333 in the vertical state is staggered with the supporting point of the first wheel 36, so that the pedal lever 21 can force the first wheel 36 to move forward by extrusion to realize the expansion of the pedal lever 21 when expanding, and the angle of the pedal lever 21 can be controlled to be in an inclined state after folding.
One of the two second connecting rods 333 is provided with a service brake (not shown) which is connected to the first wheel and/or the second wheel for braking.
It should be noted that, if the driving mode of the linkage mechanism 20 is the second mode and the linkage folding is not required, as shown in fig. 9, a synchronizing rod 40 is disposed between the two connectors 13, and the synchronizing rod 40 is formed by connecting a plurality of connecting rods in a head-to-tail rotation manner so as to adapt to the folding of the folding vehicle body 10, and the structure of the connecting component 33 can be specifically referred to, when the folding is required, only lifting the synchronizing rod 40 is required, so that the two connectors 13 can slide synchronously relative to the outer support rod 11; the adaptor 13 does not have a limiting effect due to non-linkage of folding, the two ends of the synchronizing rod 40 are respectively provided with the spring clamping pins 41 for improving the stability and comfort of use, the ends of the spring clamping pins 41 are not limited by the extending part 15 in a normal state, a pull wire 42 can be connected between the two spring clamping pins 41, the spring clamping pins 41 retract by pulling the pull wire 42, the frame connecting seat 111 is provided with the extended fixing block 112, the fixing block 112 is provided with a hole, when the spring clamping pins 41 correspond to the hole, the fixing block 112 penetrates into the hole under the action of the spring, and is matched with the fixing block 112, so that the sliding of the adaptor 13 relative to the outer supporting rod 11 is limited, and the pedal rod 21 and the steering mechanism 30 are not limited due to non-linkage of folding, so that the pedal rod 21 and the steering mechanism 30 are easy to be automatically unfolded, for this purpose, the side of the second connecting rod 333 rotationally connected with the pedal rod 21 is provided with the limiting clamping pins which are identical in structure with the spring clamping pins 41, the ends are semicircular clamping pins with the inside, the ends are matched with the fixing block 112, the pedal rod 21 is driven by the pedal rod 21 to be conveniently fixed to the limiting block 112, and the limiting block is conveniently released from the limiting block 112 is fixed to one end of the pedal rod, when the steering mechanism 30 moves towards the direction where the folding car body 10 is located, the limiting bayonet lock is extruded by the slope and can retract, and when the steering mechanism 30 moves to the limit position, the limiting bayonet lock corresponds to the hole, after the extrusion of the fixing block 112 is lost, the limiting bayonet lock is automatically inserted into the hole, limiting after the steering mechanism 30 is folded is realized, a tension spring can be arranged at the other end of the limiting bayonet lock, limiting can be conveniently released, one end of the hole, which faces the limiting bayonet lock, can be set into a trapezoid shape, the diameter of the limiting bayonet lock is required to be larger than that of the hole, so that only the end part of the limiting bayonet lock is propped in the end part of the hole, and when limiting is required to be released, only a certain acting force is required to be applied, and the limiting bayonet lock can be propped back through the side wall of the hole.
Further, the connection limiting device 34 includes a pressing rod 341, wherein a pressing block 342 is disposed in the middle of the pressing rod 341, the pressing rod 341 is slidably disposed in the middle of the folding member 331, and a pressing handle 343 is detachably connected to the top of the pressing rod 341, limiting pins 344 are respectively slidably disposed in two ends of the folding member 331, the pressing rod 341 is disposed between the two limiting pins 344, opposite ends of the two limiting pins 344 are inclined, return springs 345 are respectively disposed in the two limiting pins 344, the limiting pins 344 move toward the direction in which the pressing rod 341 is disposed through the return springs 345, and pin holes 3321 corresponding to and adapted to the limiting pins 344 are formed in one ends of the two first connecting rods 332 connected with the folding member 331;
Specifically, the connection limiting device 34 is disposed on the folding member 331, a receiving cavity (not shown in the figure) is formed in the middle of the folding member 331, a pressing rod 341 is slidably disposed in the receiving cavity, the top of the pressing rod 341 is located outside the folding member 331, a pressing handle 343 is connected to the top of the pressing rod 341 through a fastener such as a screw, so that a user can conveniently press the pressing handle from the outside, an integrally formed pressing block 342 is further disposed in the middle of the pressing rod 341, the pressing block 342 moves up and down in the receiving cavity along with the vertical movement of the pressing rod 341, limiting pins 344 are slidably disposed in two ends of the folding member 331 respectively, the pressing rod 341 is located between the two limiting pins 344, opposite sides of the two limiting pins 344 are inclined planes which incline upwards respectively, and when the pressing block 342 moves downwards, two ends of the pressing block 342 are contacted with one end of the limiting pins 344 in the inclined planes and press the limiting pins 344, and the limiting pins 344 are extruded outwards of the folding member 331 through the inclined planes; meanwhile, a pin hole 3321 matched with the limiting pin 344 is respectively arranged at the middle part of one end of the two first connecting rods 332 and the folding piece 331 in a rotating way, when the two limiting pins 344 are extruded outwards by the extrusion block 342, the two limiting pins 344 are inserted into the pin holes 3321, so that the folding piece 331 and the first connecting rods 332 are fixed together through the limiting pins 344, the first connecting rods 332 are prevented from rotating and arching relative to the folding piece 331 when not needed, wherein the first connecting rods 332 and the folding piece 331 are connected in a rotating way through rotating shafts, in order to prevent the rotating shafts from forming movement interference on the limiting pins 344, slotted holes are formed in the limiting pins 344, the rotating shafts are positioned in the slotted holes and can slide in the slotted holes, so that the limiting pins 344 can move between the folding piece 331 and the first connecting rods 332 without being limited by the rotating shafts, and in order to improve the use convenience of the connecting limiting device 34, a return spring 345 is respectively installed in the two limiting pins 344, one end of the return spring 345 is connected with the limiting pin 344, and the other end of the return spring 345 is connected with the rotating shaft, so that the limiting pin 344 can be pushed into the recovery folding piece 331 to be separated from the plugging state with the first connecting rod 332 under the action force of the return spring 345 after the extrusion of the extrusion block 342 is lost, and the first connecting rod 332 can be rotated at the moment, and meanwhile, the next connection is facilitated.
It should be noted that, when the extrusion block 342 moves down to the limit position, the contact between the extrusion block 342 and the limit pin 344 is not separated, the limit pin 344 is prevented from being influenced by the reset spring 345 after the limit of the extrusion block 342 is lost, so that the interval distance between the two limit pins 344 is shorter, the extrusion block 342 is positioned below the two limit pins 344, the situation that the extrusion bar 341 cannot be pulled up occurs, preferably, when the extrusion block 342 descends to the limit position, the end portions of the two limit pins 344 prop against the top of the side wall of the extrusion block 342, so as to prolong the contact distance between the limit pin 344 and the extrusion block 342 when the extrusion block 342 ascends, reduce the situation that the limit of the extrusion block 342 is lost and the limit of the extrusion block 342 is separated from the pin hole 3321 when the extrusion block 342 is lost due to vibration, meanwhile, a bar cover (not shown in the figure) is installed on the top of the accommodating cavity through a fastener such as a screw, when the extrusion bar 341 is put into the accommodating cavity, the bar cover is prevented from being separated from the accommodating cavity, and the rotating shaft 331 is integrally formed, in order to be convenient to be not limited by the spring when the extrusion block 342 is placed down to the limit position, the two ends of the folding member are respectively arranged at the top of the folding member 331, and the two ends of the rotating shaft are not shown in the outside position by the extrusion tool 345 are installed through the position. The bottom of the pressing rod 341 may or may not penetrate out of the bottom of the folding member 331, and when the pressing rod 341 is penetrated out, an interval is required between the bottom end of the steering rod assembly 31 and the folding member 331, so as to avoid restricting the swing of the swing arm after the pressing rod 341 penetrates out of the folding member 331.
It should be noted that, since the folding body 10 is synchronously gathered from the four directions of front, rear, left and right to the middle when folded, the folding body 10 will drive the two pedal levers 21 to be gathered when folded, but because of the horizontal relationship between the folding member 331 and the first connecting rod 332, the two pedal levers 21 cannot be gathered without interfering with the horizontal relationship between the folding member 331 and the first connecting rod 332, so that the problem that the folding body 10 cannot be gathered is limited, in order to overcome the problem, two schemes are provided herein, one of which is to set the horizontal relationship between the folding member 331 and the first connecting rod 332 into a state that the end of the first connecting rod 332 adjacent to the folding member 331 is inclined upward, in this way, only the length parameters of the first connecting rod 332 need to be modified, so that when the folding vehicle body 10 is unfolded, the connecting component 33 is not in a straight line, but is in a middle arch shape, in this state, only the pressing rod 341 needs to be pulled up first, the two limiting pins 344 lose the extrusion of the pressing rod 341, the pressing rod 341 is retracted and jacked up, and then the folding vehicle body 10 is folded, at this moment, the arch shape of the connecting component 33 does not have resistance, the pedal rod 21 can drive the two second connecting rods 333 to be closed, the two second connecting rods 333 extrude the first connecting rod 332, enable the first connecting rod to rotate relative to the folding piece 331, and jack up the folding piece 331, so that linkage folding is realized; secondly, the connecting component 33 is still horizontal, but a torsion spring is arranged at the connection position of the first connecting rod 332 and the folding piece 331 or at the connection position of the first connecting rod 332 and the second connecting rod 333, when the connecting component 33 is horizontal, the torsion spring can generate lifting force for the folding piece 331 or the first connecting rod 332, but under the limiting factor of pulling the connecting limiting device 34 and the two pedal rods 21, when the folding body 10 is folded, the folding body 10 converts the pulling force into the assistance force through the pedal rods 21, and the folding body 331 or the first connecting rod 332 is lifted by the torsion spring, so that the linkage folding of the connecting assembly 33 is realized.
Further, the link assembly 35 includes a first transmission rod 351 and second transmission rods 352 disposed at two ends of the first transmission rod 351 and respectively rotatably connected to the first transmission rod 351, one ends of the two second transmission rods 352 away from the first transmission rod 351 are rotatably connected with third transmission rods 353, one ends of the third transmission rods 353 away from the second transmission rods 352 are rotatably connected with corresponding wheel swing arms 361, a direction link 354 is movably connected in the middle of the first transmission rod 351, and the direction link 354 is fixedly connected with the bottom end of the direction link assembly 31;
Specifically, two second transmission rods 352 and third transmission rods 353 are respectively arranged, two ends of a first transmission rod 351 are respectively connected with the second transmission rod 352 in a rotating mode, one ends of the two second transmission rods 352 far away from the first transmission rod 351 are respectively connected with the third transmission rod 353 in a rotating mode, one ends of the two third transmission rods 353 far away from the second transmission rod 352 are respectively connected with corresponding wheel swing arms in a rotating mode, wherein the first transmission rod 351, the second transmission rod 352 and the third transmission rod 353 can vertically rotate, the first transmission rod 351 is rotationally connected with the direction rod assembly 31 through a direction connecting rod 354, a rotating shaft is fixedly arranged in the middle of the first transmission rod 351, one end of the direction connecting rod 354 is provided with a displacement groove (not shown in the drawing) in a sliding fit with the rotating shaft, one end of the direction connecting rod 354 far away from the displacement groove is fixedly connected with the bottom end of the direction rod assembly 31, when the first transmission rod 351, the second transmission rod 352 and the third transmission rod 353 are in a horizontal state, the horizontal rotation of the direction rod assembly 31 can drive the first transmission rod 351 to horizontally move through the direction connecting rod 354, the second transmission rod 352 and the third transmission rod 353 can vertically drive the first transmission rod 351 to horizontally move, the third transmission rod 353 can vertically to the left and right, and the first transmission rod 353 can vertically swing upwards, and the first transmission rod 353 can be driven by the first transmission rod and the first transmission rod 353 to vertically rotate to the right.
It should be noted that, since the second transmission rod 352 needs to rotate relative to the first transmission rod 351 and the third transmission rod 353, both ends of the second transmission rod 352 are arc-shaped so that the second transmission rod 352 can rotate, but in order to avoid the sinking between the second transmission rod 352 and the first transmission rod 351 and the third transmission rod 353, one end of the second transmission rod 352 connected to the first transmission rod 351 and the third transmission rod 353 is provided with a rounded corner, respectively, wherein the rounded corner is provided on only an upper side or a lower side of each end of the second transmission rod 352, and the rounded corner is located at a position corresponding to a direction of rotation based on a horizontal direction, if the second transmission rod 352 rotates upward relative to the third transmission rod 353 in a horizontal state, the rounded corner is located at the upper side, and the lower side is a corner, so that the sinking is avoided by the limitation of the corner, wherein the rounded corner positions of both ends of the second transmission rod 352 are opposite, if the second transmission rod 352 rotates relative to the first transmission rod 351 and the third transmission rod 353, the rounded corner is located at the upper side relative to the lower side of the second transmission rod 352.
Further, in the present embodiment, the steering rod assembly 31 includes an outer rod 311, an inner rod 312, and a turning rod 313, wherein the turning rod 313 is disposed in the first wheel 36 assembly in a penetrating manner, the top of the turning rod 313 is rotatably connected with the outer rod 311, the inner rod 312 is slidably disposed in the outer rod 311, the top of the inner rod 312 is connected with a steering handle 314, and a limiting assembly 32 is disposed in an end of the outer rod 311 connected with the turning rod 313, wherein the limiting assembly 32 is used for limiting rotation of the outer rod 311 relative to the turning rod 313;
specifically, the inner rod 312 is movably disposed in the outer rod 311, the turning rod 313 is disposed on the folding member 331 in a penetrating manner, the turning rod 313 can rotate relative to the folding member 331, the direction connecting rod 354 is fixedly connected with the bottom end of the turning rod 313, the top of the turning rod 313 is rotatably connected with the bottom end of the outer rod 311, and the outer rod 311 can rotate vertically relative to the turning rod 313, so that when the dragging is required, the angle of the direction rod assembly 31 can be changed, and the dragging is more convenient; in order to limit the free rotation of the outer rod 311 relative to the turning rod 313, a limiting assembly 32 is arranged in the bottom end of the outer rod 311, and comprises a limiting bolt 321 and a limiting return spring 324, wherein the limiting bolt 321 is slidably arranged in one end of the outer rod 311 connected with the turning rod 313, the limiting bolt 321 can slide up and down in the outer rod 311, a bolt head 322 is arranged at the top of the limiting bolt 321, the limiting return spring 324 is sleeved outside one end of the limiting bolt 321, one end of the limiting return spring 324 abuts against the bolt head 322, the other end abuts against the bottom end of the outer rod 311, a through hole (not shown in the figure) for the limiting bolt 321 to penetrate out is also formed in the bottom end of the outer rod 311, a bolt pin hole 3321 is formed in the middle of one end of the outer rod 313 connected with the outer rod 311, when the inner rod 312 is retracted into the outer rod 311, the end of the limiting bolt 321 can be extruded out of the outer rod 311, the limiting return spring 324 is extruded through the bolt head 322, the limiting return spring 324 is abutted against one end of the limiting bolt 311, the limiting bolt 311 is extruded out of the outer rod 311 after the outer rod 311, the limiting bolt 311 is required to be directly extruded and the inner rod 313 is required to be fixed with the inner rod 311, and the limiting bolt 311 can be directly extruded and the outer rod 311 is required to be fixed, if the inner rod is required to be extended out of the inner rod 311, and the inner rod is required to be directly extended, and then the inner rod 313 is required to be extended to be directly extended to be fixed to the inner rod and to be extended by the inner rod 311 and the inner rod 311, the limit-fold return spring 324 generates a restoring force to jack up the limit-fold latch 321 to retract into the end part of the outer rod 311, and at this time, the fixation of the outer rod 311 and the turning rod 313 is released, wherein in order to prevent the movement of the limit-fold latch 321 due to the rotation shaft at the joint of the outer rod 311 and the turning rod 313, the limit-fold latch 321 is provided with a rotation shaft chute 323, and the rotation shaft is positioned in the rotation shaft chute 323, thereby avoiding the movement collision.
Further, in this embodiment, the direction handle 314 is ring-shaped, two sides of the direction handle 314 are respectively provided with a folding groove 315, the same ends of the two folding grooves 315 are rotatably connected with a holding rod 316, one of the holding rods 316 is rotatably disposed, one end of the holding rod 316 connected with the folding groove 315 is further provided with a handle limiting bayonet lock 317 for limiting when the holding rod 316 is accommodated in the folding groove 315 or when the holding rod 316 is horizontal relative to the handle ring, the direction handle 314 is further provided with a plurality of control keys 318 and a display device 319, and the control keys 318 and the display device 319 are respectively electrically connected with the controller 18;
Specifically, the direction handle 314 may be inverted trapezoid, triangle, rectangle, circle, or other polygon, so that a user can drag the hand in the direction handle 314, two sides of the direction handle 314 are respectively provided with a folding groove 315, one end of the folding sleeve is rotatably connected with a holding rod 316, the holding rod 316 can be contained in the folding groove 315 when not in use, when the holding rod 316 is required to be used, the holding rod 316 can be rotated, i.e. the holding rod 316 can be rotated on the direction handle 314, the rotation speed of an external electric wheel is controlled by the rotation angle, a handle limit clamp 317 is further arranged on the top surface of one end of the folding groove 315 connected with the holding rod 316, the handle limit clamp 317 is of a clamp structure with a spring, a limit hole (not shown in the figure) matched with the handle limit clamp 317 is arranged on one end of the holding rod 316 connected with the folding groove, the holding rod 316 is used for horizontally containing the holding rod 316 when the holding rod 316 is required to be used, a steering key 319 is arranged on the opposite direction handle 314, a steering device is also arranged on the steering handle 314, a steering device is not shown, a steering device is further arranged on the steering device is used, a steering device is further used for displaying a steering device is used, a steering device is not shown, and the steering device is used for displaying a steering device is used, and the steering device is used, and a power of a steering device is also used for a steering device is used, or a steering device is used for a car or a steering device is used, and a steering device is used for a car or a steering device is used, and a steering key device is or a steering device is or a car is used.
Further, a telescopic bayonet 3121 is provided in the inner rod 312, a plurality of telescopic bayonet 3111 adapted to the telescopic bayonet 3121 is provided on the outer rod 311, and a telescopic button 3141 for controlling the telescopic bayonet 3111 to extend and retract is further provided on the bottom inner wall of the steering handle 314;
Specifically, the inner rod 312 is provided with a telescopic bayonet 3121, the telescopic bayonet 3121 is adapted to the telescopic bayonet 3111, the direction handle 314 is further provided with a telescopic button 3141, the telescopic bayonet 3121 is pushed by the telescopic button 3141, the telescopic bayonet 3111 is inserted into the telescopic bayonet 3111 of the outer rod 311 from the inner rod 312 to limit the inner rod 312, so as to avoid free movement of the inner rod 312 in the outer rod 311, and the specific structure between the telescopic button 3141 and the telescopic bayonet 3121 adopts the prior art, and can refer to the pull rod limiting structure of the luggage case in the prior art or the structure disclosed in the chinese patent CN201821724858.2, so that detailed details will not be repeated herein.
It should be noted that, in order to enhance the comfort of use of the trailer, a seat plate may be detachably mounted above the front end of the folding body, and when the user uses the folding body, the user may sit on the seat plate, step on the pedal lever, and hold the steering rod assembly.
In summary, the two pedal rods 21 are connected with the outer support rod 11, so that the folding vehicle body 10 can drive the pedal rods 21 and the direction control mechanism 30 to fold synchronously when folding, the rotation of the first wheel 36 relative to the pedal rods 21 is limited by the arrangement of the limit rotating rod 22, and the normal use is prevented from being influenced.
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 (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311039657.4A CN117022415B (en) | 2023-08-16 | 2023-08-16 | A linked folding structure for a passenger-carrying folding electric trailer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311039657.4A CN117022415B (en) | 2023-08-16 | 2023-08-16 | A linked folding structure for a passenger-carrying folding electric trailer |
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| CN117022415A CN117022415A (en) | 2023-11-10 |
| CN117022415B true CN117022415B (en) | 2026-03-27 |
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| CN202311039657.4A Active CN117022415B (en) | 2023-08-16 | 2023-08-16 | A linked folding structure for a passenger-carrying folding electric trailer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN222432321U (en) * | 2023-03-06 | 2025-02-07 | 深圳市车品逸科技有限公司 | A folding and passenger carrying structure of a folding trailer steering system |
| WO2025051273A1 (en) * | 2023-09-08 | 2025-03-13 | 深圳市云睿物联科技有限公司 | Folding wagon steering system |
| CN221605831U (en) * | 2023-11-28 | 2024-08-27 | 深圳市云睿物联科技有限公司 | Reinforced structure of electric folding cart |
| CN117622276B (en) * | 2023-12-06 | 2024-05-07 | 添康科技有限公司 | Energy-saving electric vehicle |
| WO2025130914A1 (en) * | 2023-12-19 | 2025-06-26 | 深圳市车品逸科技有限公司 | Anti-tire-abrasion steering structure of foldable electric camping wagon and foldable electric camping wagon |
| CN221498046U (en) * | 2024-03-05 | 2024-08-09 | 深圳市云睿物联科技有限公司 | A new steering structure for folding trailer |
| CN222080712U (en) * | 2024-03-11 | 2024-11-29 | 深圳市云睿物联科技有限公司 | A gear transmission steering structure for a folding trailer |
| CN222136767U (en) * | 2024-04-28 | 2024-12-10 | 深圳市云睿物联科技有限公司 | Multifunctional steering rod of folding electric camping car |
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| CN220615862U (en) * | 2023-08-16 | 2024-03-19 | 深圳市云睿物联科技有限公司 | A linkage folding structure for a passenger-carrying folding electric trailer |
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| US20010045718A1 (en) * | 2000-05-18 | 2001-11-29 | Boirum Ron P. | Multiple function job site work cart |
| CN202449140U (en) * | 2012-02-06 | 2012-09-26 | 濮阳市龙缘电动车业有限公司 | Folding frame for tricycle |
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| CN217994266U (en) * | 2022-07-15 | 2022-12-09 | 青岛鸿润发机械制造有限公司 | Oblique fork slidingtype campsite car |
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| CN116461586A (en) * | 2023-05-18 | 2023-07-21 | 深圳市云睿物联科技有限公司 | A foldable electric trailer with sliding wheels |
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| CN220615862U (en) * | 2023-08-16 | 2024-03-19 | 深圳市云睿物联科技有限公司 | A linkage folding structure for a passenger-carrying folding electric trailer |
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| CN117022415A (en) | 2023-11-10 |
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