CN214356227U - Kart steering structure and kart convenient to store and transport - Google Patents

Abstract

The utility model provides a kart turns to structure, including steering wheel subassembly, preceding wheel subassembly and drive assembly, steering wheel subassembly includes the steering wheel and locates the steering wheel axle of steering wheel, drive assembly includes the axis of rotation, the steering wheel axle passes through bolt, screw, buckle or articulated shaft with the axis of rotation and is connected, steering wheel subassembly passes through drive assembly and is connected with preceding wheel subassembly, steering wheel subassembly passes through the steering of wheel subassembly before the drive assembly control, drive assembly is including the axis of rotation that is used for the rotatable connection of frame with the kart, axis of rotation one end is connected with the steering wheel subassembly, the axis of rotation with preceding wheel subassembly transmission is connected. To the inconvenient transportation of traditional kart and the technical problem of accomodating among the prior art, it can be dismantled or folding and then reduce the volume of kart with convenient transportation and accomodating through the steering wheel. The utility model also provides a kart convenient to warehousing and transportation.

Description

Kart steering structure and kart convenient to store and transport

Technical Field

The utility model relates to a kart turns to structure and kart of warehousing and transportation of being convenient for thereof.

Background

Carting car is a mini sports car, which was popular in europe and america for the early time and is now gaining popularity worldwide. In a conventional kart, an engine mounted on a chassis is used as a vehicle body, and the advancing direction of wheels is controlled by a steering wheel. But the steering wheel of traditional kart fixes on the kart can not dismantle, can not reduce the volume of kart under the condition of transportation and storage kart, makes the inconvenient transportation of kart and accomodate.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the inconvenient transportation of traditional kart and the technical problem who accomodates among the prior art, the utility model provides a kart turns to structure, it can dismantle or fold and then reduce the volume of kart with convenient transportation and accomodating through the steering wheel.

Another object of the utility model is to provide a kart convenient to warehousing and transportation.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

kart's steering structure, including steering wheel subassembly, preceding wheel subassembly and transmission assembly, steering wheel subassembly includes the steering wheel and locates the steering wheel axle of steering wheel, transmission assembly includes the axis of rotation, the steering wheel axle passes through bolt, screw, buckle or articulated shaft connection with the axis of rotation, steering wheel subassembly passes through transmission assembly and is connected with preceding wheel subassembly, steering wheel subassembly passes through the steering of transmission assembly control front wheel subassembly, transmission assembly is including the axis of rotation that is used for the rotatable connection of frame with the kart, axis of rotation one end is connected with steering wheel subassembly, preceding wheel subassembly includes right front wheel and left front wheel, the axis of rotation with right front wheel and/or left front wheel transmission are connected so that right front wheel and/or left front wheel turn to.

The kart convenient to store and transport comprises a frame, a rear wheel assembly and a steering structure, wherein the steering structure adopts the steering structure of the kart, and the right front wheel and the left front wheel are respectively connected with the frame in a left-right swinging mode.

Optionally, the right and left front wheels each have a wheel axle, and the right and left front wheels are respectively articulated with the frame by the wheel axles.

Optionally, the right front wheel and the left front wheel are connected through a linkage rod, and the linkage rod is hinged to wheel shafts of the right front wheel and the left front wheel respectively.

Optionally, the rotating shaft is fixedly connected with a connecting piece, and the connecting piece is in transmission connection with the wheel axle of the right front wheel and/or the left front wheel through a transmission rod.

Optionally, the transmission rod is hinged to the connecting piece, and the transmission rod is hinged to a wheel axle.

Optionally, the connecting element is connected to the transmission rod via a universal joint, and/or the transmission rod is connected to the wheel axle via a universal joint.

Optionally, the universal rotating structure includes universal ball and articulated elements, the articulated elements has the hinge hole, the outer shape that the hinge hole inner wall was cambered surface and universal ball suits, universal ball is in the hinge hole.

Optionally, the middle part of the hinge hole can accommodate the maximum diameter part of the universal ball, and the end part of the hinge hole is smaller than the maximum diameter of the universal ball so as to prevent the universal ball from falling out of the hinge hole.

Optionally, the end of the ball is provided with a blocking member, and the size of the blocking member is larger than that of the end of the hinge hole to prevent the ball from falling out of the hinge hole.

Optionally, the foldable bicycle further comprises a support rod, a sleeve and a transition piece, wherein the support rod is hinged to the bicycle frame, the support rod is hinged to the sleeve, the sleeve is connected with the rotating shaft in a sliding mode, the rotating shaft is connected with the transition piece through a bearing, and the transition piece is hinged to the bicycle frame so that the support rod and the rotating shaft can be folded relative to the bicycle frame.

Optionally, the support rod has a telescopic structure, such that the support rod is telescopic.

Optionally, the telescopic structure includes a first adjusting rod and a second adjusting rod, a locking mechanism is disposed between the first adjusting rod and the second adjusting rod, and the first adjusting rod and the second adjusting rod can move relatively or be fixed relatively through the locking mechanism.

Optionally, the locking mechanism includes an elastic assembly disposed on one of the first adjusting lever and the second adjusting lever and a plurality of positioning holes disposed on the other of the first adjusting lever and the second adjusting lever, the elastic assembly has an extending portion, the extending portion can extend into or withdraw from the positioning holes, when the extending portion extends into the positioning holes, the first adjusting lever is fixed relative to the second adjusting lever, and when the extending portion withdraws from the positioning holes, the first adjusting lever can move relative to the second adjusting lever.

Optionally, the elastic assembly includes an elastic member and a fixing member, the fixing member forms the extending portion, the elastic member is disposed between the first adjusting rod and the fixing member, the first adjusting rod is provided with an accommodating hole for accommodating the fixing member, and the fixing member is disposed in the accommodating hole and protrudes out of the surface of the first adjusting rod.

Optionally, the support rod, the rotation shaft, the transition piece and the frame constitute a four-bar linkage mechanism, so that the rotation shaft and the support rod can be folded relative to the frame.

Optionally, the vehicle further comprises a seat which is mounted on the frame to be movable back and forth to adjust the spacing between the seat and the steering wheel assembly.

Optionally, the seat comprises a base and a backrest, the backrest being removably connected to the base.

Optionally, the backrest is connected with the base through a lifting mechanism, so that the backrest can be lifted relative to the base.

Optionally, elevating system is including locating the loop bar of base, locating the body of rod of back and the locking piece with loop bar threaded connection, the body of rod is located in the loop bar, but locking piece and loop bar threaded connection support in can stretching into the loop bar the body of rod is in order to pin the body of rod.

Optionally, the base is connected with the loop bar through a cross bar, and the cross bar and the loop bar are integrally formed.

Optionally, the bar is foldable or the crossbar is foldable such that the back is foldable relative to the base.

Optionally, the frame is provided with a mounting hole, and the seat is connected with the mounting hole through a bolt.

Optionally, the mounting holes are provided in plurality at equal intervals, and the seat can adjust the position of the seat by connecting with different mounting holes.

Optionally, the frame is of an integrally formed structure.

Optionally, the rear wheel assembly comprises a left rear wheel and a right rear wheel which are mounted on the frame, and an in-wheel motor is mounted on only one of the left rear wheel and the right rear wheel, and the carting car is driven to move by the in-wheel motor.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model provides a pair of kart turns to structure and kart of warehousing and transportation of being convenient for thereof, it can dismantle or fold and then reduce the volume of kart with convenient transportation and accomodate through the steering wheel.

Drawings

FIG. 1 is one of the schematic views of a carting car;

FIG. 2 is a second schematic view of the carting car;

FIG. 3 is a schematic view of a universal swivel arrangement;

FIG. 4 is a third schematic view of the carting car;

FIG. 5 is a schematic view of the locking mechanism of the kart;

FIG. 6 is a schematic diagram of the positioning member and the elastic rod of the carting car;

FIG. 7 is a schematic view of a positioning structure of the kart;

FIG. 8 is a schematic view of a seat of the kart.

The reference numerals in the schematic drawings illustrate:

1. a frame; 11. a seat; 111. a base; 1111. a cross bar; 1112. a loop bar; 112. a backrest; 1121. a rod body; 1122. a locking member; 12. a second limiting member; 121. a first lever; 122. a second lever; 1221. a positioning column; 1222. a screw; 1223. a cover body; 1227. a first chamber; 1226. a clamping step; 13. mounting holes; 2. a front wheel assembly; 21. a wheel shaft; 22. a first limit piece; 3. a steering wheel assembly; 41. a support bar; 42. a rotating shaft; 43. a transmission rod; 44. a linkage rod; 45. a poke rod; 46. a connecting member; 51. a first adjusting lever; 511. an elastic member; 512; a fixing member; 513. a housing hole; 52. a second adjusting lever; 521. positioning holes; 522. pushing a key; 6. a universal rotation structure; 61. a universal ball; 62. an articulation member; 63. a hinge hole; 64. a blocking member; 71. an auxiliary frame; 72. a kit; 73. a transition piece; 8. a rear wheel assembly.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings 1-8 and the accompanying examples.

With reference to fig. 1-8, the carting car convenient for storage and transportation of the embodiment includes a frame 1, a steering wheel assembly 3, a front wheel assembly 2 and a transmission assembly, wherein the steering wheel assembly 3 controls the steering of the front wheel assembly 2 through the transmission assembly. The front wheel assembly 2 includes left and right front wheels each having a wheel axle 21. The transmission assembly comprises a rotating shaft 42, a connecting piece 46, a transmission rod 43 and a linkage rod 44, one end of the rotating shaft 42 is connected with the steering wheel assembly, and the other end of the rotating shaft 42 is connected with the frame 1 through a bearing. The rotating shaft 42 is fixedly connected with a connecting piece 46, the connecting piece 46 is hinged with a transmission rod 43, and the transmission rod 43 is hinged with the wheel axle 21 of the left front wheel or the wheel axle 21 of the right front wheel. The right front wheel and the left front wheel are respectively hinged with the frame 1 through the wheel shafts 21, and the linkage rod 44 is connected with the wheel shaft 21 of the right front wheel and the wheel shaft 21 of the left front wheel to enable the right front wheel and the left front wheel to be linked.

In other embodiments, the drive link 43 may be hinged to the linkage 44.

The steering structure of the kart comprises a steering wheel assembly 3 and a transmission assembly, wherein the steering wheel assembly 3 is detachably connected with the transmission assembly, and/or the steering wheel assembly 3 is foldably connected with the transmission assembly. The steering wheel assembly 3 includes a steering wheel and a steering wheel shaft provided to the steering wheel. In a specific application, the steering wheel shaft is in threaded connection with the rotating shaft 42, or the steering wheel shaft is in threaded connection with the rotating shaft 42 through a bolt/screw, or the steering wheel shaft is in snap connection with the rotating shaft 42. Or the steering wheel is in threaded connection with the rotating shaft 42, or the steering wheel is in bolt/screw connection with the rotating shaft 42, or the steering wheel is in snap connection with the rotating shaft. The reversible connection of the steering wheel assembly 3 and the transmission assembly allows the steering wheel assembly 3 and the transmission assembly to be foldable. The steering wheel shaft and the rotation shaft 42 are hinged by a hinge shaft so that the steering wheel assembly 3 can be folded with respect to the transmission assembly.

In other embodiments, the steering wheel/rotational axle may be foldable such that the steering wheel assembly 3 may be folded relative to the transmission assembly. The rotating shaft 42 or the steering wheel shaft is provided with a locking mechanism, and the locking mechanism can lock the rotating shaft 42 or the steering wheel shaft to enable the rotating shaft 42 or the steering wheel shaft to be straight so as to enable the rotating shaft 42 or the steering wheel shaft to rotate and further to transmit; releasing the locking mechanism allows the rotating shaft 42 or the steering wheel shaft to fold.

With reference to fig. 2 and 3, a poke rod 45 is fixed on the wheel axle 21, the transmission rod 43 is connected to the wheel axle 21 through the poke rod 45, and the poke rod 45 is hinged to the transmission rod 43. The poke rod 45 is perpendicular to the linkage rod 44, and the poke rod 45 is perpendicular to the wheel axle 21.

In this embodiment, the linkage rod 44 is connected to the wheel axle 21 through a universal rotation structure 6. The universal rotating structure 6 comprises a hinge 62 arranged on the linkage rod 44 and a universal ball 61 arranged on the wheel shaft 21. The hinge 62 is provided with a hinge hole 63, and the inner wall of the hinge hole 63 is a cambered surface which is matched with the shape of the universal ball 61. The hinge hole 63 may receive a maximum diameter portion of the ball 61, and the end of the hinge hole 63 may have a size smaller than the maximum diameter of the ball 61 to prevent the ball 61 from being removed from the hinge hole 63. The end of the ball 61 is provided with a blocking member 64, and the size of the blocking member 64 is larger than that of the end of the hinge hole 63, so as to further prevent the ball 61 from falling out of the hinge hole 63. In specific application, the connecting piece 46 is connected with the transmission rod 43 through a universal rotating structure 6, and the transmission rod 43 is connected with the poke rod 45 through the universal rotating structure 6.

Referring to fig. 2, a limiting structure is disposed between the front wheel assembly 2 and the frame 1 to limit a rotation angle of the front wheel assembly 2 relative to the frame 1. The limiting structure comprises a first limiting part 22 arranged on the wheel shaft 21 and a second limiting part 12 arranged on the frame 1. The first limiting members 22 are disposed on the two wheel axles 21, and the second limiting members 12 are disposed on two sides of the frame 1. When the front wheel assembly 2 rotates rightwards for a certain angle, the first limiting member 22 disposed on the right front wheel axle 21 abuts against the second limiting member 12 on the right side of the frame 1, so as to limit the front wheel assembly 2 to continue rotating rightwards. When the front wheel assembly 2 turns left by a certain angle, the first limiting member 22 disposed on the left front wheel axle 21 abuts against the second limiting member 12 on the left side of the frame 1, so as to limit the front wheel assembly 2 to continue to turn left.

In this embodiment, the first limiting member 22 is integrally formed with the wheel axle 21 and perpendicular to the wheel axle 21, and the linkage rod 44 is connected to the wheel axle 21 through the first limiting member 22.

With reference to fig. 1, 2 and 4, the support rod 41 is hinged to the frame 1, the support rod 41 is hinged to the sleeve 72, the sleeve 72 is sleeved on the rotating shaft 42, the sleeve 72 and the rotating shaft 42 can slide relatively, the connecting member 46 is hinged to the transition member 73 and can rotate relative to the transition member 73, and the transition member 73 is hinged to the frame 1, so that the support rod 41 and the rotating shaft 42 can be folded relative to the frame 1. In other embodiments, the support rod 41 is hinged to a sleeve 72, the sleeve 72 is sleeved on the rotating shaft 42, the sleeve 72 and the rotating shaft 42 are relatively slidable, the rotating shaft 42 is connected to a transition piece 73 through a bearing, and the transition piece 73 is hinged to the frame 1, so that the support rod 41 and the rotating shaft 42 can be folded relative to the frame 1. In other embodiments the sleeve 72 is coupled to the rotating shaft 42 by a bearing.

With reference to fig. 1 and 2, the bicycle further comprises an auxiliary frame 71, wherein one end of the auxiliary frame 71 is hinged to the bicycle frame 1, and the other end of the auxiliary frame 71 is fixedly connected to the sleeve 72. The auxiliary frame 71 is used for assisting in fixing the rotating shaft 42. One end of the rotating shaft 42 is hinged with the auxiliary frame 71 through a bearing.

When the sleeve 72 is slidably connected to the rotating shaft 42, a fixing mechanism is provided between the sleeve 72 and the rotating shaft 42 to fix the sleeve 72 and the rotating shaft 42 relatively, so that the rotating shaft 42 is fixed to facilitate the operation of the steering wheel assembly 3. Alternatively, the sleeve 72 and the rotating shaft 42 have a large friction therebetween, and the sleeve 72 and the rotating shaft 42 can slide relative to each other only by overcoming the large friction.

Referring to fig. 4, the support rod 41, the rotation shaft 42, the transition member 73 and the frame 1 form a quadrilateral structure, and the quadrilateral structure may be changed due to instability of the quadrilateral structure, so that the rotation shaft 42 and the support rod 41 can be folded with respect to the frame 1. The hinged part of the transition piece 73 and the frame 1 is provided with a fixing mechanism, and/or the hinged part of the connecting piece 46 and the transition piece 73 is provided with a fixing mechanism, and/or the hinged part of the support rod 41 and the frame 1 is provided with a fixing mechanism, so that the parallelogram structure is stable through the fixing mechanism, and the rotating shaft 42 is fixed to facilitate the operation of the steering wheel assembly 3.

With reference to fig. 5, the supporting rod 41 has a telescopic structure, the telescopic structure includes a first adjusting rod 51 and a second adjusting rod 52, a locking mechanism is disposed between the first adjusting rod 51 and the second adjusting rod 52, the locking mechanism includes an elastic component disposed on one of the first adjusting rod 51 and the second adjusting rod 52 and a plurality of positioning holes 521 disposed on the other one, one end of the first adjusting rod 51 is hinged to the kit, the other end of the first adjusting rod 51 is disposed with the elastic component, and the other end of the first adjusting rod 51 is disposed in the second adjusting rod 52. The second adjusting rod 52 is hinged to the frame 1, and the second adjusting rod 52 is provided with a plurality of positioning holes 521. The elastic assembly comprises an elastic piece 511 and a fixing piece 512, one end of the elastic piece 511 is fixed on the inner wall of the first adjusting rod 51, the other end of the elastic piece 511 is fixed with the fixing piece 512, the first adjusting rod 51 is provided with a containing hole 513 for containing the fixing piece 512, and the fixing piece 512 is arranged in the containing hole 513 and protrudes out of the surface of the first adjusting rod 51. The fixing member 512 of the first adjustment lever 51 contacts the inner wall of the second adjustment lever 52 inside the second adjustment lever 52, and the elastic member 511 is in a contracted state. When the first adjustment lever 51 moves to a fixed position relative to the second adjustment lever 52, that is, when the fixing element 512 moves to the position of the positioning hole 521, the elastic element 511 extends to allow the fixing element 512 to be positioned in the positioning hole 521, so as to fix the first adjustment lever 51 and the second adjustment lever 52. The elastic member 511 may be a spring or an elastic sheet for specific applications.

The second adjustment lever 52 is provided with a push key 522, and the push key 522 is arranged at a position opposite to the positioning hole 521. When the position of the steering wheel assembly needs to be adjusted, the push key 522 is pressed to push the fixing member 512 to be separated from the positioning hole 521, meanwhile, the steering wheel assembly is acted, so that the first adjusting rod 51 and the second adjusting rod 52 move relatively, when the fixing member 512 moves to the next positioning hole 521, the elastic member 511 extends, so that the fixing member 512 is in the positioning hole 521, and the height of the steering wheel is adjusted.

With reference to fig. 4, the frame 1 is an integrally formed structure, or the frame 1 is an integrally fixed structure, and the frame is not adjustable.

With reference to fig. 1, 2, 6 and 7, the frame 1 has a retractable structure, and the retractable structure of the frame 1 is the same as the telescopic structure. Or, the retraction structure includes a first rod 121 and a second rod 122, one end of the first rod 121 is disposed in the second rod 122, the first rod 121 is provided with a plurality of fixing holes, the second rod 122 is provided with a threaded hole, the threaded hole is provided with a positioning element, the positioning element is provided with an elastic rod, the positioning element includes a screw 1222, the elastic rod includes a positioning column 1221 and a cover 1223, the screw 1222 is provided with an aperture for passing through the positioning column 1221, one end of the positioning column 1221 is fixedly connected with the cover 1223, a screw head of the screw 1222 is disposed in the cover 1223, the positioning column 1221 is connected with the screw 1222 through a spring in the aperture, the screw 1222 is in threaded connection with the second rod 122 through the threaded hole, the positioning column 1221 extends into the fixing hole, and the cover 1223 is pulled to drive the positioning column 1221 to be separated from the fixing hole. In other embodiments, the positioning member is a screw 1222, the screw 1222 is screwed with the second rod 122, and the screw 1222 is long enough to extend into the fixing hole to fix the combined length of the first rod 121 and the second rod 122; in other embodiments, the positioning element is provided with an elastic rod, the positioning element is provided with an aperture penetrating through the elastic rod, the elastic rod is arranged in the aperture and is connected with the positioning element through a spring, one end of the elastic rod is arranged in the fixing hole, the other end of the elastic rod is pulled, and the elastic rod can be separated from the fixing hole.

Be equipped with location structure between elastic rod and the setting element, location structure includes lid 1223 and locates the first chamber 1227 that holds setting element one end in the lid 1223 and establishes the screens step 1226 of first chamber 1227 lateral wall, lid 1223 with elastic rod fixed connection, the shape of first chamber 1227 with setting element one end shape suits. When the elastic rod is in the fixed orifices, the setting element is in first chamber 1227 bottom, the pulling lid 1223, lid 1223 drive elastic rod and fixed orifices separation, because the setting element is fixed by the screw hole, so setting element one end moves screens step 1226 one side of lid 1223, rotatory lid 1223 certain angle, setting element one end falls on screens step 1226, makes elastic rod and fixed orifices keep separating.

The lateral wall of first chamber 1227 is equipped with the block portion, when the setting element falls on screens step 1226, the block portion is right the setting element forms and blocks in order to prevent the setting element rotates and breaks away from screens step 1226. The lateral wall of first chamber 1227 is equipped with and link up to the recess of first chamber 1227 oral area, the lateral wall of recess forms the stop part, the bottom of recess forms screens step 1226, the setting element is equipped with and stretches into location portion in the recess. One end of the positioning piece is of an equilateral polygon structure, and the positioning part is formed at the corner of the polygon structure.

Kart has back wheel subassembly 8, back wheel subassembly 8 includes left rear wheel and right rear wheel, wheel in wheel and right rear wheel install wheel in one of them wheel in a left side rear wheel, through wheel in wheel motor drive kart motion.

A seat 11 is mounted on the frame 1, and the seat 11 includes a base 111 and a backrest 112. The backrest 112 is connected with the base 111 through a lifting mechanism, so that the backrest 112 can be lifted relative to the base 111. The lifting mechanism includes a loop bar 1112 disposed on the base 111, a rod 1121 disposed on the backrest 112, and a locking member 1122 in threaded connection with the loop bar 1112. The rod 1121 is disposed in the sleeve rod 1112, and the rod 1121 can move relative to the sleeve rod 1112 to lift the backrest 112. The locking member 1122 is threadedly engaged with the rod 1112 and can extend into the rod 1112 to abut against the rod 1121 to lock the rod 1121. The base 111 is connected with the loop bar 1112 through a cross bar 1111, and the cross bar 1111 and the loop bar 1112 are integrally formed. The rod 1121 or the cross bar 1111 can be folded such that the backrest 112 can be folded with respect to the base 111. The frame 1 is provided with a plurality of mounting holes 13, the mounting holes 13 are arranged at equal intervals, and the base 111 is connected with the mounting holes 13 through bolts. The base 111 can adjust the position of the seat 11 by connecting with different mounting holes.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (26)

1. Kart's steering structure, including steering wheel subassembly, preceding wheel subassembly and transmission assembly, steering wheel subassembly includes the steering wheel and locates the steering wheel axle of steering wheel, transmission assembly includes the axis of rotation, its characterized in that, the steering wheel axle passes through bolt, screw, buckle or articulated shaft with the axis of rotation and is connected, steering wheel subassembly passes through transmission assembly and is connected with preceding wheel subassembly, steering wheel subassembly passes through the steering of the preceding wheel subassembly of transmission assembly control, transmission assembly is including the axis of rotation that is used for the rotatable connection of frame with the kart, axis of rotation one end is connected with steering wheel subassembly, preceding wheel subassembly includes right front wheel and left front wheel, the axis of rotation with right front wheel and/or left front wheel transmission are connected so that right front wheel and/or left front wheel turn to.

2. The kart convenient to store and transport comprises a frame, a rear wheel assembly and a steering structure, and is characterized in that the steering structure of the kart according to claim 1 is adopted, and the right front wheel and the left front wheel are respectively connected with the frame in a left-right swinging mode.

3. The carting car of claim 2, wherein said right and left front wheels each have a wheel axle, said right and left front wheels being respectively articulated to the frame by the wheel axles.

4. The carting car convenient for storage and transportation according to claim 3, wherein the right front wheel and the left front wheel are connected through a linkage rod, and the linkage rod is hinged with wheel axles of the right front wheel and the left front wheel respectively.

5. The carting car convenient for storage and transportation according to claim 3, wherein the rotating shaft is fixedly connected with a connecting piece, and the connecting piece is in transmission connection with the wheel shaft of the right front wheel and/or the left front wheel through a transmission rod.

6. The carting car of claim 5, wherein said drive link is hinged to said connector and said drive link is hinged to a wheel axle.

7. The carting car of claim 6, wherein said connecting member is connected to said driving rod by a universal swivel structure and/or said driving rod is connected to said wheel axle by a universal swivel structure.

8. The carting car convenient for storage and transportation according to claim 7, wherein the universal rotation structure comprises a universal ball and a hinge piece, the hinge piece is provided with a hinge hole, the inner wall of the hinge hole is a cambered surface which is matched with the shape of the universal ball, and the universal ball is arranged in the hinge hole.

9. The carting car of claim 8, wherein said central portion of said hinge hole is adapted to receive a maximum diameter portion of said ball gimbal, and said end portion of said hinge hole is sized to be smaller than a maximum diameter portion of said ball gimbal to prevent said ball gimbal from coming out of said hinge hole.

10. The carting car of claim 8, wherein said ball end is provided with a stop member having a size larger than the end of said hinge hole to prevent said ball from coming out of said hole.

11. The carting car convenient for storage and transportation according to claim 2, further comprising a support rod, a sleeve and a transition piece, wherein the support rod is hinged with the frame, the support rod is hinged with the sleeve, the sleeve is slidably connected with a rotating shaft, the rotating shaft is connected with the transition piece through a bearing, and the transition piece is hinged with the frame, so that the support rod and the rotating shaft can be folded relative to the frame.

12. The carting car of claim 11, wherein said support rods have a telescoping configuration such that said support rods are telescoping.

13. The carting car convenient for storage and transportation according to claim 12, wherein the telescopic structure comprises a first adjusting rod and a second adjusting rod, a locking mechanism is arranged between the first adjusting rod and the second adjusting rod, and the first adjusting rod and the second adjusting rod can move relatively or be fixed relatively through the locking mechanism.

14. The carting car of claim 13, wherein the locking mechanism comprises a resilient member disposed on one of the first adjustment lever and the second adjustment lever and a plurality of alignment holes disposed on the other, the resilient member having an access portion, the access portion being extendable into and retractable from the alignment holes, the first adjustment lever being fixed relative to the second adjustment lever when the access portion is extended into the alignment holes, the first adjustment lever being movable relative to the second adjustment lever when the access portion is retracted from the alignment holes.

15. The carting car convenient for storage and transportation according to claim 14, wherein the elastic assembly comprises an elastic member and a fixing member, the fixing member forms the protruding portion, the elastic member is arranged between the first adjusting lever and the fixing member, the first adjusting lever is provided with a receiving hole for receiving the fixing member, and the fixing member is arranged in the receiving hole and protrudes out of the surface of the first adjusting lever.

16. The carting car of claim 11, wherein said support bar, pivot shaft, transition piece and frame form a four bar linkage allowing the pivot shaft and support bar to fold relative to said frame.

17. The carting car of any one of claims 2 to 16, further comprising a seat mounted on said frame to be movable fore and aft to adjust the spacing between said seat and the steering wheel assembly.

18. The carting car of claim 17, wherein said seat includes a base and a back, said back being removably connected to said base.

19. The carting car of claim 18, wherein the backrest is connected to the base by a lifting mechanism, such that the backrest is liftable relative to the base.

20. The carting car of claim 19, wherein said lifting mechanism includes a sleeve disposed on said base, a rod disposed on said backrest, and a locking member threadably engaged with said sleeve, said rod disposed within said sleeve, said locking member threadably engaged with said sleeve and extending into said sleeve to engage said rod to lock said rod.

21. The carting car of claim 20, wherein said base is connected to said stem by a cross bar, said cross bar being integrally formed with said stem.

22. The carting car of claim 21, wherein said bar is foldable or said cross bar is foldable such that said back is foldable relative to said base.

23. The carting car convenient for storage and transportation according to any one of claims 18 to 22, wherein said frame is provided with mounting holes, and said seat is connected to the mounting holes by bolts.

24. The carting car of claim 23, wherein said mounting holes are equally spaced and a plurality of said seats are adjustable in position by connecting different mounting holes.

25. The carting car of any one of claims 2 to 16, 18 to 22 and 24, wherein said frame is of an integrally formed construction.

26. The carting car of any one of claims 2 to 16, 18 to 22 and 24, wherein said rear wheel assembly comprises a left rear wheel and a right rear wheel mounted on a frame, and only one of said left rear wheel and said right rear wheel is provided with a hub motor, and said carting car is driven to move by said hub motor.

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