CN211391584U

CN211391584U - Balance vehicle

Info

Publication number: CN211391584U
Application number: CN201922145126.9U
Authority: CN
Inventors: 张文成
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-01
Anticipated expiration: 2029-12-02

Abstract

The utility model provides a balance car, which comprises a car body and two wheels, wherein the balance car also comprises two groups of pedals; the first reverse transmission mechanism is in transmission connection with the two groups of pedals and is used for realizing reverse swing between the two groups of pedals; the ratchet transmission mechanism is arranged on a wheel shaft of one wheel, the ratchet transmission mechanism is arranged on a wheel shaft of the other wheel, each ratchet transmission mechanism comprises a driving wheel rotatably arranged on the wheel shaft of the wheel, and a ratchet assembly in transmission connection with the driving wheel and the wheel respectively; and two groups of reversing mechanisms, wherein one group of reversing mechanisms is used for switching the rotating direction of one of the wheels, and the other group of reversing mechanisms is used for switching the rotating direction of the other wheel. The utility model provides a balance car only needs to step on two sets of pedals in turn and can realize that continuation of wheel gos forward, retreat or the rotation in place, and is favorable to the keep balance.

Description

Balance vehicle

Technical Field

The utility model belongs to the technical field of the car of riding instead of walk, more specifically say, relate to a balance car.

Background

The scooter refers to a transportation tool or an auxiliary tool for the purpose of replacing walk, such as a scooter, a bicycle, a balance car, etc.

The balance car is a popular tool for riding instead of walk in recent years, and is particularly popular with young people, however, most of the balance cars in the current market are electric balance cars, the electric balance cars mainly control to advance or retreat through a servo control system, the structure is extremely complex, the cost is high, and the electric balance car is not beneficial to saving resources.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balance car to solve the complicated and higher technical problem of cost of structure that electrodynamic balance car among the prior art exists.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a balance car, include the automobile body, respectively rotate install in two wheels of automobile body both sides, balance car still includes:

the two groups of pedals are respectively and rotatably arranged on two sides of the vehicle body and are used for swinging downwards;

the first reverse transmission mechanism is in transmission connection with the two groups of pedals and is used for realizing reverse swing between the two groups of pedals;

two groups of ratchet transmission mechanisms are used for converting driving force generated by downward swinging of each group of pedals into rotary motion of each wheel, wherein one group of ratchet transmission mechanisms is arranged on a wheel shaft of one wheel, the other group of ratchet transmission mechanisms is arranged on a wheel shaft of the other wheel, each group of ratchet transmission mechanisms comprises a driving wheel rotatably arranged on the wheel shaft of the wheel, and a ratchet assembly which is respectively in transmission connection with the driving wheel and the wheel and is used for driving the wheel to rotate forwards or reversely when the driving wheel rotates forwards and driving the wheel to rotate forwards or reversely when the driving wheel rotates reversely; and the number of the first and second groups,

and the two groups of reversing mechanisms are arranged on the vehicle body, one group of reversing mechanisms is used for switching the rotating direction of one of the wheels, and the other group of reversing mechanisms is used for switching the rotating direction of the other wheel.

The utility model provides a balance car's beneficial effect lies in: compared with the prior art, the utility model discloses balance car, utilize two sets of pedals to reciprocate to swing from top to bottom and provide drive power, and through installing one of them a set of ratchet drive mechanism in the shaft of one of them wheel, another set of ratchet drive mechanism installs in the shaft of another wheel, and every ratchet drive mechanism of group all includes drive wheel and ratchet subassembly, the drive wheel rotates and installs in the shaft of wheel, ratchet subassembly is connected with drive wheel and wheel transmission respectively, thereby make when the drive wheel forward rotation, ratchet subassembly drives this wheel forward rotation or reverse rotation when the drive wheel reverse rotation, and then the forward rotation of drive wheel, reverse rotation or another wheel reverse rotation of one of them wheel forward rotation, only need to step on two sets of pedals in turn and can realize the continuation advancing of wheel, the, The electric balance car has the advantages that the electric balance car retreats or rotates in place, the rotating direction of the wheels can be changed at any time in the advancing process through the arrangement of the reversing mechanism, balance can be kept more favorably, the problems of complex structure and higher cost caused by the adoption of the electric balance car in the prior art are effectively solved, the structure is very simple, no dead point exists in transmission, the time and labor are saved during pedaling, and the speed and the comfort of the balance car are effectively improved; in addition, through the alternate pedaling of the two groups of pedals, the swing amplitude of the two groups of pedals can be properly reduced, so that the two feet can be supported earlier when meeting emergencies, and a safe vertical driving condition is provided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a balance car according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the pedal, the first reverse transmission mechanism, and the ratchet transmission mechanism according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a ratchet transmission mechanism and a reversing mechanism provided in the embodiment of the present invention;

fig. 4 is a schematic perspective view of a brake apparatus provided in an embodiment of the present invention;

fig. 5 is an exploded schematic view of a brake device according to an embodiment of the present invention;

fig. 6 is an exploded schematic view of a wheel friction block according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a ratchet assembly according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a ratchet assembly according to an embodiment of the present invention;

fig. 9 is an exploded view of a ratchet assembly according to an embodiment of the present invention;

fig. 10 is an exploded view of another angle of the ratchet assembly according to the embodiment of the present invention;

fig. 11 is a schematic perspective view of a second reverse transmission mechanism according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of a wheel axle and a mounting seat provided in an embodiment of the present invention;

fig. 13 is a schematic partial perspective view of a reversing mechanism according to an embodiment of the present invention;

fig. 14 is a schematic view of a partially exploded structure of a reversing mechanism according to an embodiment of the present invention;

fig. 15 is a schematic partial structural view of a ratchet assembly according to an embodiment of the present invention;

FIG. 16 is a partial schematic view of FIG. 15 at another angle;

fig. 17 is a schematic perspective view of a second ratchet transmission assembly according to an embodiment of the present invention;

fig. 18 is a schematic partial structural view of a second ratchet transmission assembly according to an embodiment of the present invention;

fig. 19 is a schematic perspective view of a first ratchet transmission assembly according to an embodiment of the present invention;

fig. 20 is a schematic partial structural view of a first ratchet transmission assembly according to an embodiment of the present invention;

fig. 21 is a schematic view illustrating an angular relationship between a first ratchet and a second ratchet according to an embodiment of the present invention;

fig. 22 is a schematic structural view of the pedal, the slide rail seat and the slide block according to the embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 21, a balance car according to the present invention will be described. The utility model provides a balance car, including automobile body 10, rotate respectively and install in two wheels 20 of automobile body 10 both sides, balance car still includes two sets of pedal 30, first reverse drive mechanism 40, two sets of ratchet drive mechanism 50 and two sets of reversing mechanism 60. Two sets of pedals 30 are rotatably mounted on both sides of the body 10, respectively, for swinging downward to provide a driving force required for rotation of the wheels 20. The first reverse transmission mechanism 40 is in transmission connection with the two sets of pedals 30 for realizing reverse swing between the two sets of pedals 30, so that when one set of pedals 30 is at the lowest point of the stroke, the other set of pedals 30 is at the highest point of the stroke, and when one set of pedals 30 is at the highest point of the stroke, the other set of pedals 30 is at the lowest point of the stroke. The two sets of ratchet transmission mechanisms 50 are used for converting the driving force generated by the downward swinging of the pedals 30 into the rotating motion of the wheels 20, so as to drive the wheels 20 to rotate in the forward direction or the reverse direction, and finally realize the forward or backward movement of the wheels 20. One set of ratchet drive mechanisms 50 is mounted on the axle of one of the wheels 20 and the other set of ratchet drive mechanisms 50 is mounted on the axle of the other wheel 20.

Each set of ratchet drive 50 comprises a drive wheel 51 and a ratchet assembly 52, the drive wheel 51 being rotatably mounted on the axle of the wheel 20. The ratchet assembly 52 is in transmission connection with the driving wheel 51 and the wheel 20, and is used for driving the wheel 20 to rotate in the forward direction or in the reverse direction when the driving wheel 51 rotates in the forward direction, and driving the wheel 20 to rotate in the forward direction or in the reverse direction when the driving wheel 51 rotates in the reverse direction. By arranging the two groups of ratchet transmission mechanisms 50, the two wheels 20 can simultaneously realize forward rotation (the balance car is in a forward state), reverse rotation (the balance car is in a backward state) or forward rotation of one wheel 20 and reverse rotation of the other wheel 20 (the balance car is in a pivot rotation state). The balance car also comprises two groups of reversing mechanisms 60 which are arranged on the car body 10, wherein one group of reversing mechanisms 60 is used for switching the rotating direction of one wheel 20, and the other group of reversing mechanisms 60 is used for switching the rotating direction of the other wheel 20, so that the rotating direction of the wheel 20 can be changed at any time during the running process, and balance is further kept.

Wherein, the forward rotation of the wheels 20 refers to a rotation direction for driving the wheels 20 to advance, the reverse rotation of the wheels 20 refers to a rotation direction opposite to the forward rotation, when both the wheels 20 rotate in the forward direction, the balance car advances, when both the wheels 20 rotate in the reverse direction, the balance car retreats, when one of the wheels 20 rotates in the forward direction, and the other wheel 20 rotates in the reverse direction, the balance car rotates in place.

Compared with the prior art, the balance car provided by the utility model, utilize two sets of pedals 30 to provide drive power up and down to reciprocate to swing, and through installing one of them ratchet drive 50 on the shaft of one of them wheel 20, another ratchet drive 50 is installed on the shaft of another wheel 20, and each ratchet drive 50 includes drive wheel 51 and ratchet subassembly 52, drive wheel 51 rotates and installs on the shaft of wheel 20, ratchet subassembly 52 is connected with drive wheel 51 and wheel 20 transmission respectively, thus when drive wheel 51 is rotatory in the forward direction, ratchet subassembly 52 drives this wheel 20 forward rotation or reverse rotation when drive wheel 51 reverse rotation, and then drive the forward rotation of wheel 20, reverse rotation or one of them wheel 20 forward rotation another wheel 20 reverse rotation, the continuous advancing, retreating or in-situ rotation of the wheel 20 can be realized only by alternately pedaling the two groups of pedals 30, and the arrangement of the reversing mechanism 60 enables the wheel 20 to change the rotating direction at any time in the advancing process, thereby being more beneficial to keeping balance, effectively solving the problems of complex structure and higher cost caused by adopting an electric balance car in the prior art, having very simple structure, no dead point in transmission, time and labor saving in pedaling and effectively improving the speed and comfort of the balance car; in addition, the swing amplitude of the two groups of pedals 30 can be properly reduced by alternately pedaling the two groups of pedals 30, so that the feet can be supported earlier when meeting emergencies, and a safe upright driving condition is provided.

Further, referring to fig. 1 to 2, as an embodiment of the balance car of the present invention, the first reverse transmission mechanism 40 includes a transmission belt 41 and a reversing wheel 42 disposed on the car body 10 for supporting the transmission belt 41, and two ends of the transmission belt 41 respectively bypass around the driving wheels 51 and are fixedly connected to the two sets of pedals 30. Through the arrangement of the first reverse transmission mechanism 40, the reverse swing between the two sets of pedals 30 can be realized, when the pedals 30 are stepped on, the transmission belt 41 drives the driving wheel 51 to rotate, and the driving wheel 51 drives the rotation of each wheel 20 through the ratchet assembly 52. Preferably, in this embodiment, the driving belt 41 is a chain. It should be noted that the arrangement of the transmission belt 41 is not limited to this, for example, in other preferred embodiments of the present invention, the transmission belt 41 can be a rope, which can also realize the reverse swing between the two sets of pedals 30.

Further, please refer to fig. 2, as a specific implementation manner of the balance car provided by the present invention, the first reverse transmission mechanism 40 further includes an adjusting screw 43, the adjusting screw 43 is used to adjust the length of the transmission belt 41, so as to lock the two sets of ratchet transmission mechanisms 50 at the synchronous and alternate relative positions, and prevent the two sets of ratchet transmission mechanisms 50 from generating motion interference in an asynchronous and alternate manner.

Further, referring to fig. 7 to fig. 20, as an embodiment of the balance car of the present invention, the ratchet assembly 52 includes a first ratchet transmission assembly 521 and a second ratchet transmission assembly 522. The first ratchet drive assembly 521 includes a first ratchet wheel 5211, a first drive wheel 5212, a first forward pawl 5213 and a first reverse pawl 5214. The first ratchet 5211 is provided with first bidirectional ratchet teeth 52111. The first drive wheel 5212 is rotatably mounted on the axle 21 of the wheel 20. The first forward pawl 5213 is rotatably mounted on the first drive wheel 5212 and is configured to engage the first bi-directional ratchet teeth 52111 to thereby drive the first ratchet gear 5211 in a forward direction. The first reverse pawl 5214 is rotatably mounted on the first drive wheel 5212 and is configured to engage the first bidirectional ratchet teeth 52111 to thereby drive the first ratchet gear 5211 in a reverse direction. The second ratchet drive assembly 522 includes a second ratchet wheel 5221, a second drive wheel 5222, a second forward pawl 5223 and a second reverse pawl 5224. The second ratchet 5221 is provided with second bidirectional ratchet teeth 52211. The second transmission wheel 5222 is rotatably mounted on the axle 21 of the wheel 20. A second forward pawl 5223 is rotatably mounted on the second drive wheel 5222 and is adapted to engage the second bi-directional ratchet teeth 52211 to thereby drive the second ratchet 5221 in a forward direction. A second reverse pawl 5224 is rotatably mounted on the second drive wheel 5222 and is adapted to engage the second bi-directional ratchet teeth 52211 to thereby drive the second ratchet 5221 in a reverse direction. The ratchet assembly 52 further includes a second reverse drive mechanism 53. the second reverse drive mechanism 53 is configured to effect reverse rotation of the first drive wheel 5212 and the second drive wheel 5222, i.e., when the first drive wheel 5212 is rotating in a forward direction, the second drive wheel 5222 is rotating in a reverse direction, and when the first drive wheel 5212 is rotating in a reverse direction, the second drive wheel 5222 is rotating in a forward direction. Drive wheel 51 is fixedly coupled to first drive wheel 5212 such that first drive wheel 5212 and drive wheel 51 rotate in unison. The second ratchet 5221 is connected and fixed to the first ratchet 5211, in this embodiment, the first ratchet 5211 and the second ratchet 5221 are separately disposed, and the first ratchet 5211 and the second ratchet 5221 can be connected and fixed by engaging with each other, of course, in other preferred embodiments of the present invention, the first ratchet 5211 and the second ratchet 5221 can also be integrally connected and disposed. The wheel 20 is sleeved on the axle 21 of the wheel 20, the first wheel fixing member 22 is fixedly connected with the wheel 20, the first ratchet wheel 5211 is abutted against the first wheel fixing member 22 to drive the wheel 20 to rotate, or the first ratchet wheel 5211 is separated from the first wheel fixing member 22 to idle the first ratchet wheel 5211. When the first ratchet 5211 abuts against the first wheel securing member 22, the first ratchet 5211 drives the first wheel securing member 22 to rotate synchronously, and the first wheel securing member 22 drives the wheel 20 to rotate synchronously. When the first ratchet wheel 5211 is separated from the first wheel holder 22, the first ratchet wheel 5211 cannot drive the first wheel holder 22 to rotate synchronously. The balance car further includes a brake device 70, when in a non-braking state, the brake device 70 pushes the first ratchet wheel 5211 to move, so that the first ratchet wheel 5211 abuts against the first wheel holder 22, and when in a braking state, the brake device 70 separates the first ratchet wheel 5211 from the first wheel holder 22.

Specifically, in the present embodiment, as shown in fig. 17 to 20, the first bidirectional ratchet 52111 comprises a first forward contact portion 52112 and a first reverse contact portion 52113, the first forward pawl 5213 is in contact with the first forward contact portion 52112 to drive the first ratchet 5211 to rotate in the forward direction, and the first reverse pawl 5214 is in contact with the first reverse contact portion 52113 to drive the first ratchet 5211 to rotate in the reverse direction. The second bidirectional ratchet 52211 comprises a second forward contact portion 52212 and a second reverse contact portion 52213, the second forward pawl 5223 being in contact with the second forward contact portion 52212 to drive the second ratchet 5221 to rotate in the forward direction, and the second reverse pawl 5224 being in contact with the second reverse contact portion 52213 to drive the second ratchet 5221 to rotate in the reverse direction.

It should be noted that, as shown in fig. 21, the included angle α between the first ratchet wheel 5211 and the second ratchet wheel 5221 is half of the included angle β between adjacent equidirectional ratchet teeth on the first ratchet wheel 5211 or the second ratchet wheel 5221. The included angle α between the first ratchet 5211 and the second ratchet 5221 is an included angle formed between the first forward contact portion 52112 on the first ratchet 5211 and the second forward contact portion 52212 on the second ratchet 5221, or an included angle formed between the first reverse contact portion 52113 on the first ratchet 5211 and the second reverse contact portion 52213 on the second ratchet 5221, centered on the rotation center of the first ratchet 5211 or the second ratchet 5221. The angle α between the first ratchet wheel 5211 and the second ratchet wheel 5221 is also the working angle, i.e., the angle at which the first forward pawl 5213, the first reverse pawl 5214, the second forward pawl 5223 or the second reverse pawl 5224 moves from the beginning of the stroke to the end of the stroke to drive the first ratchet wheel 5211 or the second ratchet wheel 5221 to rotate. The included angle β between adjacent equidirectional ratchet teeth on the first ratchet 5211 refers to the included angle formed between adjacent first forward contact portions 52112 on the first ratchet 5211, or the included angle formed between adjacent first reverse contact portions 52113 on the first ratchet 5211; alternatively, an included angle is formed between adjacent second forward contact portions 52212 on the second ratchet 5221, or an included angle is formed between adjacent second reverse contact portions 52213 on the second ratchet 5221. For example, in the present embodiment, as shown in fig. 21, since the number of the first bidirectional ratchet teeth 52111 on the first ratchet 5211 and the second bidirectional ratchet teeth 52211 on the second ratchet 5221 are one, the included angle β is 360 °, and the included angle α is 180 °.

Further, referring to fig. 3 to 14, as an embodiment of the balance car of the present invention, the reversing mechanism 60 includes a mounting base 61, a first contact member 62, a second contact member 63, and a friction wheel 64. The mounting base 61 is fixed on the wheel axle 21 of the wheel 20, and the first touching member 62 and the second touching member 63 are rotatably mounted on the mounting base 61, so that the first touching member 62 and the second touching member 63 can synchronously swing. The first trigger 62 includes a first forward pawl trigger arm 621 and a first reverse pawl trigger arm 622, and in this embodiment, the first forward pawl trigger arm 621 and the first reverse pawl trigger arm 622 are integrally formed and connected. The first forward pawl touching arm 621 and the first reverse pawl touching arm 622 form a V-shaped structure. The first forward pawl touching arm 621 is used to contact the first forward pawl 5213 to push the first forward pawl 5213 to turn over, thereby disengaging the first forward pawl 5213 from the first double-direction ratchet teeth 52111. The first reverse pawl contact arm 622 is for contacting the first reverse pawl 5214 to push the first reverse pawl 5214 to turn over, thereby disengaging the first reverse pawl 5214 from the first double-direction ratchet teeth 52111. When the first contact member 62 swings in the forward direction (i.e., the same direction as the forward direction of the wheel 20), at this time, the first reverse pawl contact arm 622 faces the first reverse pawl 5214, the first forward pawl contact arm 621 and the first forward pawl 5213 are staggered from each other, and when the first reverse pawl 5214 moves to the stroke end, the first reverse pawl 5214 contacts the first reverse pawl contact arm 622 to turn over, so that the first reverse pawl 5214 is separated from the first ratchet wheel 5211, and the first reverse pawl 5214 is prevented from moving and interfering when the first ratchet wheel 5211 moves in the forward direction. When the first forward pawl 5213 moves to the end of its travel, the first forward pawl touch arm 621 does not contact the first forward pawl 5213, and the first forward pawl 5213 remains in contact with the first ratchet wheel 5211, i.e., when the first reverse pawl touch arm 622 is in the touch position, the first forward pawl touch arm 621 leaves the touch position. When the first trigger 62 swings in the reverse direction (i.e., swings in the direction opposite to the advancing direction of the wheel 20), the first forward pawl trigger arm 621 faces the first forward pawl 5213, the first reverse pawl trigger arm 622 and the first reverse pawl 5214 are staggered from each other, and when the first forward pawl 5213 moves to the stroke end, the first forward pawl trigger arm 621 contacts the first forward pawl 5213 to push the first forward pawl 5213 to turn over, so that the first forward pawl 5213 is separated from the first ratchet wheel 5211, and the first forward pawl 5213 is prevented from moving and interfering when the first ratchet wheel 5211 moves in the reverse direction; when the first reverse pawl 5214 moves to the highest point of travel, the first reverse pawl trigger arm 622 does not contact the first reverse pawl 5214, and the first reverse pawl 5214 remains in contact with the first ratchet wheel 5211, i.e., the first forward pawl trigger arm 621 is in the activated position and the first reverse pawl trigger arm 622 is out of the activated position.

The second contact member 63 includes a second forward pawl contact arm 631 and a second reverse pawl contact arm 632. In the present embodiment, the second forward pawl contact arm 631 and the second reverse pawl contact arm 632 are integrally formed and connected. The second forward pawl contact arm 631 and the second reverse pawl contact arm 632 form a V-shaped structure. The second forward pawl contact arm 631 is located on the same side of the swing center as the first forward pawl contact arm 621, and the second reverse pawl contact arm 632 is located on the same side of the swing center as the first reverse pawl contact arm 622. The second forward pawl contact arm 631 is configured to contact the second forward pawl 5223 to push the second forward pawl 5223 to turn, and the second reverse pawl contact arm 632 is configured to contact the second reverse pawl 5224 to push the second reverse pawl 5224 to turn. When the second contact member 63 swings in the forward direction (i.e., the same direction as the forward direction of the wheel 20), at this time, the second reverse pawl contact arm 632 is aligned with the second reverse pawl 5224, the second forward pawl contact arm 631 and the second forward pawl 5223 are offset from each other, and when the second reverse pawl 5224 moves to the stroke end, the second reverse pawl 5224 contacts the second reverse pawl contact arm 632 to turn over, so that the second reverse pawl 5224 is separated from the second ratchet wheel 5221, and the second reverse pawl 5224 is prevented from moving and interfering when the second ratchet wheel 5221 moves in the forward direction. When the second forward pawl 5223 moves to the end of its travel, the second forward pawl contact arm 631 does not contact the second forward pawl 5223, and the second forward pawl 5223 remains in contact with the second ratchet wheel 5221, i.e., when the second reverse pawl contact arm 632 is in the activated position, the second forward pawl contact arm 631 moves away from the activated position. When the second contact member 63 swings in the reverse direction (i.e., swings in the direction opposite to the advancing direction of the wheel 20), the second forward pawl contact arm 631 is aligned with the second forward pawl 5223, the second reverse pawl contact arm 632 is offset from the second reverse pawl 5224, when the second forward pawl 5223 moves to the end of the stroke, the second forward pawl contact arm 631 contacts the second forward pawl 5223 to push the second forward pawl 5223 to turn over, so that the second forward pawl 5223 is separated from the second ratchet wheel 5221, and the second forward pawl 5223 is prevented from moving and interfering when the second ratchet wheel 5221 moves in the reverse direction; when the second reverse pawl 5224 moves to the highest point of travel, the second reverse pawl contact arm 632 will not contact the second reverse pawl 5224, and the second reverse pawl 5224 will remain in contact with the second ratchet wheel 5221, i.e., the second forward pawl contact arm 631 is in the activated position and the second reverse pawl contact arm 632 is out of the activated position.

The friction wheel 64 is mounted on the second trip member 63 and is in frictional contact with the second ratchet 5221. Preferably, the friction wheel 64 is elastically fixed to the second trigger 63 by an elastic piece 65, so that the second trigger 63 is in elastic frictional contact with the second ratchet 5221. When the wheel 20 rotates in the forward direction, the first ratchet 5211 rotates in the forward direction because the first ratchet 5211 abuts against the first wheel holder 22, and the second ratchet 5221 also rotates in the forward direction because the second ratchet 5221 is fixedly coupled to the first ratchet 5211. At this time, the friction wheel 64, under the action of the friction force of the second ratchet wheel 5221, drives the first touching part 62 and the second touching part 63 to swing in the forward direction, so that the first reverse pawl touching arm 622 is opposite to the first reverse pawl 5214, and the first forward pawl touching arm 621 and the first forward pawl 5213 are staggered with each other, thereby realizing the automatic opening of the first reverse pawl 5214 and avoiding the first reverse pawl 5214 from interfering with the forward rotation of the wheel 20; meanwhile, the second reverse pawl contact arm 632 is made to face the second reverse pawl 5224, and the second forward pawl contact arm 631 and the second forward pawl 5223 are offset from each other, so that the second reverse pawl 5224 is automatically opened to prevent the second reverse pawl 5224 from interfering with the forward rotation of the wheel 20. When the wheel 20 rotates in the reverse direction, that is, the second ratchet wheel 5221 rotates in the reverse direction, at this time, the friction wheel 64, under the action of the friction force of the second ratchet wheel 5221, drives the first contact part 62 and the second contact part 63 to swing in the reverse direction, so that the second forward pawl contact arm 631 faces the second forward pawl 5223 in the opposite direction, and the second reverse pawl contact arm 632 and the first reverse pawl 5214 are staggered from each other, thereby realizing the automatic opening of the second forward pawl 5223 and preventing the second forward pawl 5223 from interfering with the reverse rotation of the wheel 20; meanwhile, the first forward pawl touch arm 621 faces the first forward pawl 5213, and the first reverse pawl touch arm 622 and the first reverse pawl 5214 are staggered from each other, so that the first forward pawl 5213 is automatically opened to prevent the first forward pawl 5213 from interfering with the reverse rotation of the wheel 20. Due to the arrangement of the first and

second contact members

62, 63 and the second reverse transmission mechanism 53, when the first ratchet 5211 is in the working state, the second ratchet 5221 is in the idle rotation state, and when the second ratchet 5221 is in the working state, the first ratchet 5211 is in the idle rotation state, and the two will not generate motion interference.

Further, referring to fig. 3 and fig. 13, as an embodiment of the balance car of the present invention, the reversing mechanism 60 further includes a manual shifting mechanism 66 for manually shifting the direction of the wheel 20. The manual shift mechanism 66 includes an elastic stopper 661, a shift wire 662, and a shift wire device 663 connected to the shift wire 662. The elastic limiting member 661 includes a fixed end 6611 and a movable limiting end 6612 connected to the fixed end 6611, the fixed end 6611 is fixed to the mounting base 61, and the movable limiting end 6612 is connected to the shifting wire 662 and used for pushing the first touching member 62 and the second touching member 63 to swing. The wire shifting device 663 is mounted on the vehicle body 10, and the wire shifting device 663 has a forward gear and a reverse gear. When the wheel 20 needs to be changed from forward to backward, the wire shifter 663 is shifted to a reverse gear, the wire shifter 662 drives the elastic limiting member 661 to reversely swing, so that the first touching member 62 and the second touching member 63 reversely swing, the first forward pawl touching arm 621 is opposite to the first forward pawl 5213, the first reverse pawl touching arm 622 is staggered with the first reverse pawl 5214, the second forward pawl touching arm 631 is opposite to the second forward pawl 5223, and the second reverse pawl touching arm 632 is staggered with the second reverse pawl 5224, so that the first forward pawl 5213 and the second forward pawl 5223 can be forcibly opened, and interference of the rotation direction of the wheel 20 is avoided. Or when the wheel 20 needs to move forward from the backward position, the wire shifter 663 is shifted to a forward gear position, the wire shifter 662 drives the elastic limiting member 661 to swing forward, so that the first touching member 62 and the second touching member 63 swing forward, the first reverse pawl touching arm 622 is opposite to the first reverse pawl 5214, the first forward pawl touching arm 621 and the first forward pawl 5213 are staggered with each other, the second reverse pawl touching arm 632 is opposite to the second reverse pawl 5224, and the second forward pawl touching arm 631 and the second forward pawl 5223 are staggered with each other, so that the first reverse pawl 5214 and the second reverse pawl 5224 can be forcedly opened without interference of the rotation direction of the wheel 20. The forward rotation or the reverse rotation of the wheel 20 is manually switched by the provision of the manual shift mechanism 66.

Further, referring to fig. 13 to 14, as a specific embodiment of the balance car of the present invention, the first triggering member 62 is provided with a movable limiting slot 623, and the movable limiting end 6612 is installed in the movable limiting slot 623, so as to limit the swing range of the first triggering member 62 and the second triggering member 63 when the direction is manually switched. When the movable limiting end 6612 is located at the center of the limiting groove 623, the elastic limiting member 661 does not interfere with the swing of the first touching member 62 and the second touching member 63, i.e. the first touching member 62 and the second touching member 63 automatically change direction following the swing of the wheel.

Further, referring to fig. 17 to 20, as an embodiment of the balance car of the present invention, the balance car further includes a first elastic member 80 and a second elastic member 90, as shown in fig. 19 to 20, the first elastic member 80 is mounted on the first driving wheel 5212, and one end of the first elastic member 80 abuts against the first forward pawl 5213, so as to provide an elastic force to push the first forward pawl 5213 to engage with the first double-direction ratchet 52111 when the first forward pawl touch arm 621 is separated from the first forward pawl 5213. The other end of the first elastic member 80 abuts against the first reverse pawl 5214 for providing an elastic force to push the first reverse pawl 5214 into engagement with the first double-direction ratchet teeth 52111 when the first reverse pawl touch arm 622 is separated from the first reverse pawl 5214. As shown in fig. 17 to 18, a second elastic member 90 is mounted on the second transmission wheel 5222, and one end of the second elastic member 90 abuts against the second forward pawl 5223 for providing an elastic force to push the second forward pawl 5223 into engagement with the second double direction ratchet teeth 52211 when the second forward pawl contact arm 631 is separated from the second forward pawl 5223. The other end of the second elastic member 90 abuts against the second reverse pawl 5224 for providing an elastic force to push the second reverse pawl 5224 into engagement with the second bidirectional ratchet 52211 when the second reverse pawl touch arm 632 is separated from the second reverse pawl 5224. Specifically, the first elastic member 80 and the second elastic member 90 may be springs or torsion springs.

Further, referring to fig. 7 to 10, as an embodiment of the balance car provided by the present invention, a first ratchet friction block 52114 is disposed at an end of the first ratchet 5211 close to the first wheel holder 22, so as to realize the frictional contact between the first ratchet 5211 and the first wheel holder 22. An end of the second ratchet 5221 remote from the first wheel securing member 22 is provided with a second ratchet friction block 52214, such that the second ratchet 5221 is brought into frictional contact with a second wheel securing member 23 described below.

Further, referring to fig. 4 to 10, as an embodiment of the balance car of the present invention, a second wheel fixing member 23 is sleeved on the axle 21 of the wheel 20 and connected and fixed with the wheel 20. The balance car further comprises a brake device 70, wherein the brake device 70 comprises a wheel friction block 71, a brake friction block 72, a brake cable 73, a brake piece 74, a limit stop 75 and a return elastic piece 76. The wheel pads 71 are mounted to the second wheel mount 23 and are axially movable relative to the second wheel mount 23. The wheel friction block 71 includes an inner friction member 711 interposed between the second ratchet friction block 52214 and the second wheel fixing member 23, and an outer friction member 712 disposed outside the wheel 20 fixing member and connected and fixed to the inner friction member 711. The brake pad 72 is axially movably disposed at an end of the outer friction member 712 close to the second ratchet wheel friction block 52214, and is configured to abut against the outer friction member 712 and drive the outer friction member 712 to axially move in a direction away from the second ratchet wheel friction block 52214 in a braking state, so that the first ratchet wheel friction block 52114 is separated from the first wheel fixing member 22 and the inner friction member 711 abuts against the second wheel fixing member 23, thereby cutting off a power source for rotation of the wheel 20, and since the brake pad 72 abuts against the outer friction member 712, the outer friction member 712 and the inner friction member 711 are connected and fixed, and the inner friction member 711 simultaneously abuts against the second wheel fixing member 23, thereby performing a braking function. The brake cable 73 is connected with the brake friction block 72, the brake piece 74 is connected with the brake cable 73 and used for controlling the axial movement of the brake friction block 72, when the brake piece 74 is stepped, the brake friction block 72 is driven to move along the direction far away from the second ratchet 5221 through the brake cable 73, the brake function is further realized, and the operation is very simple and convenient. The limit stop 75 is sleeved outside the second wheel fixing member 23. The two ends of the elastic return element 76 respectively abut against the limit stop 75 and the outer friction element 712 for providing elastic thrust, so that the first ratchet friction block 52114 and the first wheel fixing element 22 are kept in elastic abutment in a non-braking state, and at this time, the inner friction element 711 is separated from the second wheel fixing element 23, and the rotation of the wheel 20 is not affected. Through the provision of the brake device 70, a braking or reversing operation is achieved. Specifically, in this embodiment, the brake member 74 is a brake pedal. The brake member 74 may also be a brake handle bar.

Further, referring to fig. 11, as an embodiment of the balance car of the present invention, the second reverse transmission mechanism 53 includes a first gear 531 installed on the first transmission wheel 5212, a second gear 532 engaged with the first gear 531, a third gear 533 installed on the second transmission wheel 5222 and engaged with the second gear 532, and a fourth gear 534 engaged with the first gear 531 and the third gear 533 respectively. By providing the second reverse transmission mechanism 53, it is possible to realize that the first driving wheel 5212 and the second driving wheel 5222 rotate in opposite directions, for example, when the first driving wheel 5212 rotates in the forward direction, the second driving wheel 5222 rotates in the reverse direction, and when the first driving wheel 5212 rotates in the reverse direction, the second driving wheel 5222 rotates in the forward direction.

Further, referring to fig. 1 and fig. 22, as a specific embodiment of the balance car of the present invention, the two sides of the car body 10 are respectively provided with the slide rail seat 11, each set of pedals 30 is respectively provided with the slide blocks 31 corresponding to the slide rail seats 11 one by one and sliding relative to the slide rail seats 11, and the two ends of the transmission belt 41 are respectively connected and fixed with the slide blocks 31. When one of the pedals 30 moves downwards, the pedal 30 drives the sliding block 31 to slide downwards along the corresponding slide rail seat 11, so as to drive the driving wheel 51 on the same side as the pedal 30 to rotate in the forward direction, and at the same time, the other pedal 30 moves upwards, and the other pedal 30 drives the other sliding block 31 to move upwards along the other slide rail seat 11, so as to drive the other driving wheel 51 on the same side as the other pedal 30 to rotate in the reverse direction. Through the cooperation of the slide rail seat 11 and the slide block 31, the running can be more stable.

Further, referring to fig. 1 to 2, as a specific embodiment of the balance car of the present invention, each set of pedals 30 includes two pedals 30, and the two pedals 30 are arranged in parallel in front and at the back, so as to be beneficial for the user to keep balance.

The working principle of the balance car of the embodiment of the utility model, such as forward movement, backward movement and original place rotation, is as follows:

for convenience of description and simplicity of description, one of the pedals 30 is named as "left pedal 30" and the other pedal 30 is named as "right pedal 30". The wheel 20 on the same side as the left pedal 30 is named as a left wheel 20, and the wheel 20 on the same side as the right pedal 30 is named as a right wheel 20. The ratchet transmission mechanism 50 on the same side of the left pedal 30 is named as a left ratchet transmission mechanism 50, the ratchet transmission mechanism 50 on the same side of the right pedal 30 is named as a right ratchet transmission mechanism 50, and the naming of other components is analogized in turn, however, the above simplified description does not indicate or imply a specific orientation, and therefore, the present invention is not limited thereto.

First, when the left first ratchet 5211 and the right second ratchet 5221 are in working states, the left second ratchet 5221 and the right first ratchet 5211 are in idle rotation states; the balance car can realize forward or backward operation, and the method specifically comprises the following two conditions:

(1) when the left pedal 30 is stepped downwards, the left driving wheel 51 is driven to rotate in the forward direction, the first reverse transmission mechanism 40 drives the right driving wheel 51 to rotate in the reverse direction, and at the moment, the left driving wheel 51 drives the left first transmission wheel 5212 to rotate in the forward direction, and the left second transmission wheel 5222 is driven to rotate in the reverse direction by the left second reverse transmission mechanism 53; the right driving wheel 51 drives the right first driving wheel 5212 to rotate reversely, and the right second driving wheel 5222 is driven by the right second reverse transmission mechanism 53 to rotate forwardly;

since the left first ratchet wheel 5211 is in a working state and the left second ratchet wheel 5221 is in an idle rotation state, the left first reverse pawl 5214 on the left first driving wheel 5212 and the left second reverse pawl 5224 on the left second driving wheel 5222 are in an open state, i.e., the left first forward pawl 5213 is matched with the left first ratchet wheel 5211 to drive the left first ratchet wheel 5211 to rotate forward, so as to drive the left wheel 20 to rotate forward; since the left first ratchet wheel 5211 is fixedly connected with the left second ratchet wheel 5221, the left second ratchet wheel 5221 synchronously rotates in the forward direction, and the left second reverse pawl 5224 is in an open state, and therefore has no cooperation with the left second ratchet wheel 5221, the left second reverse pawl 5224 passes over the left second bidirectional ratchet 52211 and rotates in the reverse direction along with the left second transmission wheel 5222;

since the right second ratchet 5221 is in a working state and the right first ratchet 5211 is in a free rotation state, the right first reverse pawl 5214 on the right first transmission wheel 5212 and the right second reverse pawl 5224 on the right second transmission wheel 5222 are in an open state, that is, the right second forward pawl 5223 on the right second transmission wheel 5222 is matched with the right second ratchet 5221 to drive the right second ratchet 5221 to rotate forward, and since the right first ratchet 5211 and the right second ratchet 5221 are fixedly connected, the right first ratchet 5211 synchronously rotates forward, so as to drive the right wheel 20 to rotate forward; and since the right first reverse pawl 5214 has no cooperation with the right first ratchet 5211, the right first reverse pawl 5214 goes over the right first double ratchet teeth 52111 and rotates reversely with the right first drive wheel 5212. That is, the synchronous forward rotation of the left wheel 20 and the right wheel 20 is achieved, the balance car is in the forward state.

(2) When the right pedal 30 is stepped downwards, the right driving wheel 51 is driven to rotate in the forward direction, the first reverse transmission mechanism 40 drives the left driving wheel 51 to rotate in the reverse direction, at the moment, the right driving wheel 51 drives the right first transmission wheel 5212 to rotate in the forward direction, the right second transmission wheel 5222 is driven to rotate in the reverse direction by the right second reverse transmission mechanism 53, the left driving wheel 51 drives the left first transmission wheel 5212 to rotate in the reverse direction, and the left second transmission wheel 5222 is driven to rotate in the forward direction by the left second reverse transmission mechanism 53;

since the right second ratchet 5221 is in a working state and the right first ratchet 5211 is in an idle rotation state, the right first forward pawl 5213 on the right first transmission wheel 5212 and the right second forward pawl 5223 on the right second transmission wheel 5222 are in an open state, that is, the right second reverse pawl 5224 and the right second ratchet 5221 cooperate to drive the right second ratchet 5221 to rotate in the reverse direction, and since the right first ratchet 5211 and the right second ratchet 5221 are fixedly connected, the right first ratchet 5211 synchronously rotates in the reverse direction, so as to drive the right wheel 20 to rotate in the reverse direction; the right first forward pawl 5213 is disengaged from the right first ratchet 5211, and the right first forward pawl 5213 goes over the right first bidirectional ratchet 52111 and rotates in the forward direction along with the right first driving wheel 5212;

since the left first ratchet wheel 5211 is in a working state and the left second ratchet wheel 5221 is in an idle rotation state, the left first forward pawl 5213 on the left first driving wheel 5212 and the left second forward pawl 5223 on the left second driving wheel 5222 are in an open state, i.e., the left first reverse pawl 5214 on the left first driving wheel 5212 is matched with the left first ratchet wheel 5211 to drive the left first ratchet wheel 5211 to rotate in the reverse direction, so as to drive the left wheel 20 to rotate in the reverse direction; since the left second forward pawl 5223 is disengaged from the left second forward pawl 5221, the left second forward pawl 5223 goes over the left second bidirectional ratchet 52211 and rotates forward along with the left second transmission wheel 5222, and since the left second ratchet 5221 is fixedly connected with the left first ratchet 5211, the left second ratchet 5221 rotates in a synchronous and reverse direction, and the left second ratchet 5221 is disengaged from the left second forward pawl 5223. That is, the left wheel 20 and the right wheel 20 rotate in the opposite directions in synchronization, and the balance car is in a backward movement state.

When the left second ratchet 5221 and the right first ratchet 5211 are in working states, the left first ratchet 5211 and the right second ratchet 5221 are in idle rotation states; the balance car can realize forward or backward operation, and the method specifically comprises the following two conditions:

(1) when the right pedal 30 is stepped downwards, the right driving wheel 51 is driven to rotate in the forward direction, the first reverse transmission mechanism 40 drives the left driving wheel 51 to rotate in the reverse direction, at the moment, the right driving wheel 51 drives the right first transmission wheel 5212 to rotate in the forward direction, the right second transmission wheel 5222 is driven to rotate in the reverse direction by the right second reverse transmission mechanism 53, the left driving wheel 51 drives the left first transmission wheel 5212 to rotate in the reverse direction, and the left second transmission wheel 5222 is driven to rotate in the forward direction by the left second reverse transmission mechanism 53;

since the right first ratchet wheel 5211 is in a working state and the right second ratchet wheel 5221 is in an idle rotation state, the right first reverse pawl 5214 on the right first transmission wheel 5212 and the right second reverse pawl 5224 on the right second transmission wheel 5222 are in an open state, i.e., the right first forward pawl 5213 is matched with the right first ratchet wheel 5211 to drive the right first ratchet wheel 5211 to rotate forward, so as to drive the right wheel 20 to rotate forward; while the right second reverse pawl 5224 is out of engagement with the right second ratchet 5221 due to its opened state, the right second reverse pawl 5224 rides over the right second bidirectional ratchet 52211 and rotates reversely with the right second transmission wheel 5222;

since the left second ratchet 5221 is in a working state and the left first ratchet 5211 is in an idle rotation state, the left first reverse pawl 5214 on the left first transmission wheel 5212 and the left second reverse pawl 5224 on the left second transmission wheel 5222 are in an open state, i.e., the left second forward pawl 5223 on the left second transmission wheel 5222 is matched with the left second ratchet 5221 to drive the left second ratchet 5221 to rotate forward, and since the left first ratchet 5211 is fixedly connected with the left second ratchet 5221, the left first ratchet 5211 synchronously rotates forward, so as to drive the left wheel 20 to rotate forward; and since the left first reverse pawl 5214 is in an open state and thus does not cooperate with the left first ratchet gear 5211, the left first reverse pawl 5214 goes over the left first double-directional ratchet teeth 52111 and rotates reversely with the left first drive wheel 5212. That is, the synchronous forward rotation of the left wheel 20 and the right wheel 20 is achieved, the balance car is in the forward state.

(2) When the left pedal 30 is stepped downwards, the left driving wheel 51 is driven to rotate in the forward direction, the first reverse transmission mechanism 40 drives the right driving wheel 51 to rotate in the reverse direction, and at the moment, the left driving wheel 51 drives the left first transmission wheel 5212 to rotate in the forward direction, and the left second transmission wheel 5222 is driven to rotate in the reverse direction by the left second reverse transmission mechanism 53; the right driving wheel 51 drives the right first driving wheel 5212 to rotate reversely, and the right second driving wheel 5222 is driven by the right second reverse transmission mechanism 53 to rotate forwardly;

since the left second ratchet 5221 is in a working state and the left first ratchet 5211 is in an idle rotation state, the left first forward pawl 5213 on the left first transmission wheel 5212 and the left second forward pawl 5223 on the left second transmission wheel 5222 are in an open state, i.e., the left second reverse pawl 5224 is matched with the left second ratchet 5221 to drive the left second ratchet 5221 to rotate in the reverse direction, and since the left first ratchet 5211 is fixedly connected with the left second ratchet 5221, the left first ratchet 5211 synchronously rotates in the reverse direction, so as to drive the left wheel 20 to rotate in the reverse direction; while the left first forward pawl 5213 is in an open state and thus is not engaged with the left first ratchet 5211, the left first forward pawl 5213 rides over the left first bidirectional ratchet 52111 and rotates in a forward direction along with the left first drive wheel 5212;

since the right first ratchet wheel 5211 is in a working state and the right second ratchet wheel 5221 is in an idle rotation state, the right first forward pawl 5213 on the right first driving wheel 5212 and the right second forward pawl 5223 on the right second driving wheel 5222 are in an open state, that is, the right first reverse pawl 5214 on the right first driving wheel 5212 is matched with the right first ratchet wheel 5211 to drive the right first ratchet wheel 5211 to rotate reversely, so as to drive the right wheel 20 to rotate reversely; and since the right second forward pawl 5223 is in an open state and thus does not cooperate with the right second ratchet 5221, the right second forward pawl 5223 goes over the right second bidirectional ratchet 52211 and rotates forward along with the right second transmission wheel 5222. That is, the left wheel 20 and the right wheel 20 rotate in the opposite directions in synchronization, and the balance car is in a backward movement state.

Third, when the left first ratchet 5211 and the right first ratchet 5211 are in working states, the left second ratchet 5221 and the right second ratchet 5221 are in idle rotation states; the balance car can realize in-situ rotation operation, and the method specifically comprises the following two conditions:

since the left first ratchet wheel 5211 is in a working state and the left second ratchet wheel 5221 is in an idle rotation state, the left first reverse pawl 5214 on the left first driving wheel 5212 and the left second reverse pawl 5224 on the left second driving wheel 5222 are in an open state, i.e., the left first forward pawl 5213 is matched with the left first ratchet wheel 5211 to drive the left first ratchet wheel 5211 to rotate forward, so as to drive the left wheel 20 to rotate forward; while the left second reverse pawl 5224 is in an open state and thus is out of engagement with the left second ratchet 5221, the left second reverse pawl 5224 rides over the left second bidirectional ratchet 52211 and rotates in reverse with the left second drive wheel 5222;

since the right first ratchet wheel 5211 is in a working state and the right second ratchet wheel 5221 is in an idle rotation state, the right first forward pawl 5213 on the right first driving wheel 5212 and the right second forward pawl 5223 on the right second driving wheel 5222 are in an open state, that is, the right first reverse pawl 5214 on the right first driving wheel 5212 is matched with the right first ratchet wheel 5211 to drive the right first ratchet wheel 5211 to rotate reversely, so as to drive the right wheel 20 to rotate reversely; and since the right second forward pawl 5223 is in an open state and thus does not cooperate with the right second ratchet 5221, the right second forward pawl 5223 goes over the right second bidirectional ratchet 52211 and rotates forward along with the right second transmission wheel 5222. That is, the forward rotation of the left wheel 20 and the reverse rotation of the right wheel 20 are achieved, and the balance car is in the in-place rotation state.

since the left first ratchet wheel 5211 is in a working state and the left second ratchet wheel 5221 is in an idle rotation state, the left first forward pawl 5213 on the left first driving wheel 5212 and the left second forward pawl 5223 on the left second driving wheel 5222 are in an open state, i.e., the left first reverse pawl 5214 on the left first driving wheel 5212 is matched with the left first ratchet wheel 5211 to drive the left first ratchet wheel 5211 to rotate in the reverse direction, so as to drive the left wheel 20 to rotate in the reverse direction; and since the left second forward pawl 5223 is in an open state and thus does not cooperate with the left second ratchet 5221, the left second forward pawl 5223 goes over the left second bidirectional ratchet 52211 and rotates forward along with the left second transmission wheel 5222. That is, the reverse rotation of the left wheel 20 and the forward rotation of the right wheel 20 are achieved, and the balance car is in the in-place rotation state.

Fourth, when the left second ratchet 5221 and the right second ratchet 5221 are in working states, the left first ratchet 5211 and the right first ratchet 5211 are in a non-rotating state; the balance car can realize in-situ rotation operation, and the method specifically comprises the following two conditions:

since the right second ratchet 5221 is in a working state and the right first ratchet 5211 is in a free rotation state, the right first reverse pawl 5214 on the right first transmission wheel 5212 and the right second reverse pawl 5224 on the right second transmission wheel 5222 are in an open state, that is, the right second forward pawl 5223 on the right second transmission wheel 5222 is matched with the right second ratchet 5221 to drive the right second ratchet 5221 to rotate forward, and since the right first ratchet 5211 and the right second ratchet 5221 are fixedly connected, the right first ratchet 5211 synchronously rotates forward to drive the right wheel 20 to rotate forward; and since the right first reverse pawl 5214 is in an open state and thus does not cooperate with the right first ratchet gear 5211, the right first reverse pawl 5214 goes over the right first double-direction ratchet teeth 52111 and rotates in a forward direction along with the right first drive wheel 5212. That is, the reverse rotation of the left wheel 20 and the forward rotation of the right wheel 20 are achieved, and the balance car is in the in-place rotation state.

since the right second ratchet 5221 is in a working state and the right first ratchet 5211 is in an idle rotation state, the right first forward pawl 5213 on the right first transmission wheel 5212 and the right second forward pawl 5223 on the right second transmission wheel 5222 are in an open state, that is, the right second reverse pawl 5224 and the right second ratchet 5221 cooperate to drive the right second ratchet 5221 to rotate in the reverse direction, and since the right first ratchet 5211 and the right second ratchet 5221 are fixedly connected, the right first ratchet 5211 synchronously rotates in the reverse direction, so as to drive the right wheel 20 to rotate in the reverse direction; the right first forward pawl 5213 is disengaged from the right first ratchet 5211 due to its opened state, and the right first forward pawl 5213 goes over the right first bidirectional ratchet 52111 and rotates in the reverse direction along with the right first driving wheel 5212;

since the left second ratchet wheel 5221 is in an operating state and the left first ratchet wheel 5211 is in an idle rotation state, the left first reverse pawl 5214 on the left first transmission wheel 5212 and the left second reverse pawl 5224 on the left second transmission wheel 5222 are in an open state, i.e., the left second forward pawl 5223 on the left second transmission wheel 5222 is matched with the left second ratchet wheel 5221 to drive the left second ratchet wheel 5221 to rotate forward, so as to drive the left wheel 20 to rotate forward; and since the left first reverse pawl 5214 is in an open state and thus does not cooperate with the left first ratchet gear 5211, the left first reverse pawl 5214 goes over the left first double-directional ratchet teeth 52111 and rotates reversely with the left first drive wheel 5212. That is, the forward rotation of the left wheel 20 and the reverse rotation of the right wheel 20 are achieved, and the balance car is in the in-place rotation state.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Balance car, including the automobile body, respectively rotate install in two wheels of automobile body both sides, its characterized in that: the balance car still includes:

2. The balance car of claim 1, wherein: the ratchet wheel component comprises a first ratchet wheel transmission component and a second ratchet wheel transmission component,

the first ratchet drive assembly comprises:

the first ratchet wheel is provided with a first bidirectional ratchet;

a first drive wheel rotatably mounted on a wheel axle of the wheel;

the first forward pawl is rotatably arranged on the first transmission wheel and is used for being matched with the first bidirectional ratchet to drive the first ratchet wheel to rotate forwards; and the number of the first and second groups,

a first reverse pawl rotatably mounted on the first drive wheel and cooperating with the first bidirectional ratchet to drive the first ratchet wheel to rotate in a reverse direction;

the second ratchet drive assembly comprises:

the second ratchet wheel is provided with a second bidirectional ratchet;

a second transmission wheel rotatably mounted on a wheel shaft of the wheel;

a second forward pawl rotatably mounted on the second transmission wheel and cooperating with the second bidirectional ratchet to drive the second ratchet to rotate forward; and the number of the first and second groups,

a second reverse pawl rotatably mounted on the second transmission wheel and cooperating with the second bidirectional ratchet to drive the second ratchet wheel to rotate in a reverse direction;

the ratchet wheel component also comprises a second reverse transmission mechanism for realizing the reverse rotation of the first transmission wheel and the second transmission wheel, the driving wheel is fixedly connected with the first transmission wheel, the second ratchet wheel is fixedly connected with the first ratchet wheel, a first wheel fixing piece fixedly connected with the wheel is sleeved outside a wheel shaft of the wheel, the first ratchet wheel is abutted against the first wheel fixing piece to drive the wheel to rotate or the first ratchet wheel is separated from the first wheel fixing piece to idle-rotate the first ratchet wheel,

the balance car further comprises a brake device for pushing the first ratchet wheel to move in a non-braking state so as to enable the first ratchet wheel to abut against the first wheel fixing piece or enable the first ratchet wheel to be separated from the first wheel fixing piece in a braking state.

3. The balance car of claim 2, wherein: the reversing mechanism comprises a mounting seat fixed on a wheel shaft of the wheel, a first touch part rotatably mounted on the mounting seat, and a second touch part rotatably mounted on the mounting seat and fixedly connected with the first touch part, and a friction wheel mounted on the second trigger and in frictional contact with the second ratchet wheel, the first trigger including a first forward pawl contact arm for contacting the first forward pawl to push the first forward pawl to turn over, and a first reverse pawl contact arm for contacting the first reverse pawl to push the first reverse pawl to turn over, the second trigger part comprises a second positive pawl trigger arm which is used for contacting with the second positive pawl to push the second positive pawl to overturn, and a second reverse pawl contact arm for contacting the second reverse pawl to push the second reverse pawl to turn over.

4. The balance car of claim 3, wherein: reversing mechanism still including being used for the manual switching the manual gear shifting mechanism of wheel direction, manual gear shifting mechanism include the elasticity locating part, dial the line and with dial the line ware of dialling that the line is connected, the elasticity locating part include the stiff end and with the spacing end of activity that the stiff end is connected, the stiff end is fixed in on the mount pad, the spacing end of activity with dial the line and be connected and be used for promoting first touching with the swing is touched to the second.

5. The balance car of claim 3, wherein: the balance car further comprises a first elastic piece and a second elastic piece, the first elastic piece is mounted on the first transmission wheel, one end of the first elastic piece is abutted against the first forward pawl, and the other end of the first elastic piece is abutted against the first reverse pawl; the second elastic piece is arranged on the second driving wheel, one end of the second elastic piece is abutted to the second forward pawl, and the other end of the second elastic piece is abutted to the second reverse pawl.

6. The balance car of claim 2, wherein: one end of the first ratchet wheel close to the first wheel fixing piece is provided with a first ratchet wheel friction block, and one end of the second ratchet wheel far away from the first wheel fixing piece is provided with a second ratchet wheel friction block.

7. The balance car of claim 6, wherein: wheel shaft overcoat be equipped with wheel connection fixed second wheel mounting, brake equipment includes:

the wheel friction block is arranged on the second wheel fixing piece and can axially move relative to the second wheel fixing piece, and the wheel friction block comprises an inner friction piece clamped between the second ratchet wheel friction block and the second wheel fixing piece and an outer friction piece arranged outside the wheel fixing piece and fixedly connected with the inner friction piece;

the brake friction block is axially movably arranged at one end, close to the second ratchet wheel friction block, of the outer friction piece and is used for being abutted against the outer friction piece in a braking state and driving the outer friction piece to axially move towards a direction far away from the second ratchet wheel friction block so that the first ratchet wheel friction block is separated from the first wheel fixing piece and the inner friction piece is abutted against the second wheel fixing piece;

the brake cable is connected with the brake friction block;

the brake piece is connected with the brake cable and is used for controlling the axial movement of the brake friction block;

the limit stop block is sleeved outside the second wheel fixing piece; and the number of the first and second groups,

and two ends of the reset elastic piece are respectively abutted against the limit stop and the outer friction piece and used for providing elastic thrust so that the first ratchet wheel friction block and the first wheel fixing piece are kept in elastic abutting joint in a non-braking state, and the inner friction piece is separated from the second wheel fixing piece.

8. The balance car of claim 2, wherein: the second reverse transmission mechanism comprises a first gear arranged on the first transmission wheel, a second gear meshed with the first gear, a third gear arranged on the second transmission wheel and meshed with the second gear, and a fourth gear respectively meshed with the first gear and the third gear.

9. The balance car of any one of claims 1 to 8, wherein: the first reverse transmission mechanism comprises a transmission belt, reversing wheels arranged on the vehicle body and used for supporting the transmission belt, and adjusting screws used for adjusting the length of the transmission belt, wherein two ends of the transmission belt respectively bypass the driving wheels and are fixedly connected with the two groups of pedals.

10. The balance car of claim 9, wherein: and sliding rail seats are respectively arranged on two sides of the vehicle body, sliding blocks which correspond to the sliding rail seats one by one and slide relative to the sliding rail seats are respectively arranged on each group of pedals, and two ends of the transmission belt are respectively connected and fixed with the sliding blocks.