CN218519793U - Balance car steering mechanism and balance car - Google Patents

Abstract

The utility model provides a balance car steering mechanism and balance car, including car body with rotate connect in the wheel subassembly of car body both sides, be provided with on the car body and turn to subassembly and control assembly, turn to the subassembly and include the steering column, the steering column with the rotatable connection of car body can swing under the exogenic action, still includes the steering panel, the upper end of steering panel with the steering column is fixed to link to each other and forms fixed area S1, the lower extreme of steering panel with the car body is fixed to link to each other and forms fixed area S3, fixed area S1 with form deformation area S2 between the fixed area S3, the usable self toughness/elasticity of steering panel under the swing effect of steering column, produce the deformation of bending in deformation area S2. The utility model discloses retrench steering mechanism's whole spare part quantity, optimize steering mechanism and constitute, reduce steering mechanism's processing cost.

Description

Balance car steering mechanism and balance car

Technical Field

The utility model relates to an electric motor car technical field especially relates to an electrodynamic balance car steering mechanism and electrodynamic balance car.

Background

The electric balance car is also called a body-sensing car, a thinking car, a camera car and the like. The principle of operation is based primarily on a basic principle known as "Dynamic Stabilization". The gyroscope and the acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, and the servo control system is used for accurately driving the motor to perform corresponding adjustment so as to keep the balance of the system. The electric balance car is taken as the most popular tool for riding instead of walk at present, and is popular among young people due to the fashionable appearance, flexibility and convenience in carrying.

At present, most of balance cars in the market are controlled to steer in a leg control or manual control mode, a steering shaft (rotating shaft) is usually additionally arranged at the bottom of a leg control rod or a manual control rod, and the steering of the balance cars is controlled by detecting the rotating angle of the steering shaft. However, the steering mechanism of the balance car often has more parts and complex structure, and in addition, in order to make the rotating shaft have sufficient strength, the aluminum profile material is generally used, and the CNC machining process is used, so that the machining time is long, and the cost is high.

Chinese utility model patent CN201420058494.4 discloses a steering shaft structure of a balance car, which comprises a steering platform arranged on the balance car, two bearing seats are arranged on the steering platform in parallel, which are respectively a bearing front seat and a bearing rear seat, a steering shaft is rotatably mounted on the two bearing seats, the front end of the steering shaft passes through the bearing front seat and then is fixedly connected with a steering rod through a steering rod connecting shaft, and a rear end sensor of the steering shaft contacts with a steering sensor fixed on the steering platform after bearing rear seat; a steering shaft pressing block is fixedly clamped on the steering shaft, and two ends of the steering shaft pressing block are connected with the steering platform through pressing block springs respectively; the steering rod comprises an upper section and a lower section which are respectively an upper section and a lower section of the steering rod, and the distance between the upper section and the lower section of the steering rod is adjusted by adjusting screws; the top end of the steering rod is provided with a handle. The arrangement of the bearing seat and the steering shaft enables the whole steering mechanism to have more parts and complex structure.

The chinese invention application CN202011579580.6 discloses a steering detection mechanism for a balance car and a balance car, comprising a connecting shaft and a sensor; the connecting shaft comprises a detection part; the detection part is provided with an accommodating cavity, the accommodating cavity is positioned at the end part of the detection part, the accommodating cavity is provided with a detection piece, the detection piece is directly fixed in the accommodating cavity, and the sensor is arranged corresponding to the detection piece; the detection part is also provided with a detection cavity, the detection cavity is used for accommodating the sensor, and the sensor is partially or completely positioned in the detection cavity. The arrangement of the connecting shaft ensures that the processing time is long and the cost is higher.

In addition, since the swing of the leg control lever or the hand control lever and the steering of the electric balance car are almost performed simultaneously, in order to return the leg control lever or the hand control lever to the original position as soon as possible after the steering, and reduce the steering centrifugal force of the electric balance car, an elastic structure capable of automatically returning the leg control lever or the hand control lever after the steering is required to be arranged.

Chinese utility model patent CN201720720947.9 discloses an electrodynamic balance car's control lever turns to reset structure, including setting up between electrodynamic balance car's pedal seat and control lever, including locating the control lever lower part and can be along with the pivoted pivot of control lever swing, pivot and pedal seat rotatable coupling just when the control lever does not receive the exogenic action the control lever keep position placed in the middle, thereby be equipped with in the pedal seat and can be driven by the pivot when the control lever swing drives the pivot and rotate towards arbitrary one direction and take place the flexure strip that deformation made the pivot have the antiport trend, thereby the tip of flexure strip is located the outside of pivot. Has the advantages that: the structure is simple and reasonable, the stability is good, the resetting effect is good, the control rod can be timely and accurately reset to the middle position, the installation and the disassembly are convenient, and the elastic sheet is made of a manganese steel sheet and can provide enough elastic force. But the arrangement of the reset structure further increases the complexity of the parts of the steering mechanism.

SUMMERY OF THE UTILITY MODEL

In order to retrench steering mechanism's whole spare part quantity, optimize steering mechanism and constitute, reduce steering mechanism's processing cost, the utility model provides a retrench steering spindle directly utilizes leg control pole or hand control pole to carry out steering control's balance car steering mechanism.

The utility model provides a balance car steering mechanism, including car body with rotate connect in the wheel subassembly of car body both sides, be provided with pedal assembly on the car body, turn to subassembly and control assembly, turn to the subassembly and include the steering column, the steering column with the rotatable connection of car body can swing under the exogenic action and turn to in order to control, and is preferred, swing takes place at the front plane at perpendicular to pedal assembly place, the control steering column's of understanding usually about promptly.

As a further improvement, the steering assembly further comprises a steering plate, the upper end of the steering plate is connected with the steering rod to form a fixed area S1, the lower end of the steering plate is connected with the vehicle body to form a fixed area S3, the fixed area S1 is connected with the fixed area S3 to form a deformation area S2, the steering plate can utilize self toughness/elasticity, and the steering rod can bend and deform under the swing action of the steering rod in the deformation area S2. Traditional steering spindle often is parallel with pedal assembly, installs additional on the car body from the front side of car body, the utility model discloses be different from traditional, set up the mode that steering spindle control turned to in addition in the bottom of steering column, directly extend fixed deflector at the lower extreme of steering column, very big car body inner space of having saved, reduce spare part quantity, optimize the process time cost. Preferably, the steering plate can be processed by stamping, blanking and heat treatment of 65Mn and other alloy materials, the steering plate has good elasticity after heat treatment, and the spring steel plate can be bent under the action of external force.

As a further improvement of the present invention, the steering assembly further includes: the inner bushing is embedded in the steering rod, the fixed seat outside the steering rod is sleeved with the inner bushing, the mounting seat is fixed in the vehicle body, the upper end of the steering plate is embedded in the inner bushing and fixed, the lower end of the steering plate is fixedly connected with the mounting seat, the steering plate is fixedly fixed in the steering rod through the inner bushing, the synchronization with the swing of the steering rod is guaranteed, and the installation fastness of the steering rod, the inner bushing and the steering plate is further improved through the hoop effect generated by the fixed seat.

As the utility model discloses a further improvement, be equipped with on the car body and be suitable for the installation steering column turn to the installation department, turn to the installation department and be the through-hole form, the steering assembly is still including being suitable for to shield turn to the flexible glue lid of installation department, the flexible glue lid is including installing port and lid skirt, the steering column install in the installing port, the lid skirt covers turn to the hole edge of installation department, it is preferred, the lid skirt can set up to the multifold form, perhaps chooses flexible material preparation for use, the assurance hole edge that can be good shielding nature, prevent that the finger from stretching into and producing danger, can also prevent grey dustproof.

As the utility model discloses a further improvement, the mount pad includes first mount pad and the second mount pad of butt joint from top to bottom, first mount pad with still form the well pipe installation department that is suitable for fixed well pipe between the second mount pad, unique mount pad configuration design can be fixed well pipe and steering mechanism simultaneously, optimizes spare part quantity, simplifies the installation procedure.

As a further improvement, the fixing base comprises an eccentric wrench, and the eccentric wrench rotates, and the fixing base can fix the steering rod to the neck bush.

As a further improvement, the neck bush comprises a limit edge, the limit edge protrudes out of the neck bush and is suitable for positioning the upper part of the neck bush, the fixing seat and the lower part of the neck bush are provided with the soft rubber cover and the limit edge, which are convenient to assemble and position.

As a further improvement, the deflector is sheet-like, both can guarantee that the deformation after the deflector atress is crooked, can also keep with the steering column of top and the connection fastness of the mount pad of below.

As a further improvement, the steering plate is vertically installed in the mounting seat with between the neck bush, the mode of vertical installation is for traditional horizontal mode of establishing the steering spindle save space more, practice thrift the cost, make things convenient for processing.

As a further improvement, the fixing area S1 is provided with a first mounting hole, the corresponding position of the neck bush is provided with a fourth mounting hole, the steering plate is passed through the bolt by the neck bush, the first mounting hole is fastened by the fourth mounting hole.

As a further improvement, the fixing area S3 is provided with a second mounting hole, the corresponding position of the mounting seat is provided with a third mounting hole, the steering plate is passed through the bolt by the mounting seat, the first mounting hole is fastened with the third mounting hole.

As a further improvement of the utility model, the mount pad is including being suitable for the installation the deflector installation department of deflector, the deflector installation department is the rectangle trough-shaped, the deflector installation department is including the installation wall, the deflector can lean on the installation wall installation is fixed, the installation wall is located on the axis of the swing plane of steering column. The mounting and fixing mode of surface-surface fitting can further ensure the connection strength of the steering plate and the mounting seat and prevent the error movement.

In order to guarantee the steering mechanism after retrenching, still have high reliability, high accuracy, the utility model also provides a be suitable for and detect the swing angle's of steering column detection subassembly that turns to.

As a further improvement, the detection assembly that turns to includes the detection assembly that meets an emergency, the detection assembly that meets an emergency is located including pasting deformation zone S2 'S strain sensor, through detecting deformation zone S2' S the deformation volume of bending comes the control to turn to.

As a further improvement, the detection assembly that turns to includes hall detection subassembly, hall detection subassembly is including the hall detection circuit board that is provided with hall element to but pivoted hall detection base and hall detection rotate the seat, hall detection rotates the seat and can follow the swing of steering column, hall detection rotates and is equipped with magnet on the seat, hall element can stretch into by hall detection base with hall detection rotates in the seat formation, changeable, the magnetic field environment, controls through the change that detects the magnetic flux and turns to.

As a further improvement, the utility model also includes that elasticity resets, elasticity reset with hall detects and rotates linking to each other of seat activity, can follow the swing of steering column and swing, and then promote hall detects and rotates the seat for hall detects the base and rotates.

As a further improvement, the rotatable card of hall detection rotation seat is located inside the hall detection base, hall detection rotates and is equipped with the buckle on the seat.

As a further improvement, be equipped with first fixed orifices on the hall detection circuit board, be equipped with the third mounting hole on the mount pad, first fixed orifices with third fixed orifices position corresponds, and is fixed continuous with the two through the fastener.

As a further improvement, the hall detects and is equipped with the second fixed orifices on the base, be equipped with the third mounting hole on the mount pad, the second fixed orifices with third fixed orifices position corresponds, links to each other the two is fixed through the fastener.

As a further improvement of the present invention, the hall detection base includes a sleeve portion, and the hall detection rotation base includes a first rotation surface, and the first rotation surface is movable in cooperation with the inside rotation of the sleeve portion.

As a further improvement of the present invention, the hall detection base forms a first center hole in the center, the hall detection rotation base forms in the center with a second center hole coaxial with the first center hole, the hall element can stretch into in the second center hole.

As a further improvement, the hall detection rotates being provided with two magnet mount pads of seat symmetry, and two magnets that the magnetic pole is opposite are fixed in the magnet mount pad.

As a further improvement, the Hall detection rotates the seat with the steering column swings in step, effectively guarantees synchronism, the reliability of rotating the testing process.

As a further improvement, the Hall detection rotating seat is symmetrically provided with two elastic resetting piece mounting seats.

As a further improvement of the utility model, elasticity resets and is the torsional spring, including the canned paragraph at middle part and the two free ends that extend to both sides from the middle part, first free end and second free end, hall detects and rotates two torsional spring mount pads that are equipped with of seat symmetry, the canned paragraph with the steering column is fixed, two the free end respectively with the top of supporting of torsional spring mount pad activity.

As a further improvement, the utility model is embedded in neck bush front side in the steering column is equipped with first installation department, bends protruding in two the free end the canned paragraph is fixed in the first installation department.

As a further improvement of the utility model, along with the swing of steering column, the first free end of torsional spring rises, and the second free end descends, two the free end with the cooperation mode of torsional spring mount pad includes: the torsional spring mount pad is the opening horizontal slot, has adjacent back wall and diapire face, the free end can with back wall and diapire face offset.

As a further improvement of the utility model, two the free end with the mating mode of torsional spring mount pad includes: the torsion spring mounting seat comprises a slot, and the first free end movably extends into the slot.

As a further improvement of the utility model, two the free end with the cooperation mode of torsional spring mount pad includes: the torsion spring mounting seat comprises a clamping hook, and the first free end can be connected with the clamping hook.

As a further improvement of the utility model, two the free end with the cooperation mode of torsional spring mount pad includes: the torsion spring mounting seats are respectively a first torsion spring mounting seat and a second torsion spring mounting seat, the first free end is fixedly connected with the first torsion spring mounting seat, and the second free end is suspended on a swinging path of the second torsion spring mounting seat.

The utility model also provides a balance car, easy operation, simple to operate, processing low cost can directly utilize leg control pole or hand control pole to carry out steering control, and steering detection mechanism can independently reset, the synchronism is high.

The utility model provides a pair of balance car, preferred, for the leg accuse balance car, including above-mentioned balance car steering mechanism, the car body is including the face lid and the bottom that set up from top to bottom, and set up in the well pipe of car body inside, the face is covered being equipped with two footboard installation departments of symmetry, be provided with between the footboard installation department and turn to the installation department, the steering wheel can certainly turn to the installation department and stretch into, vertical install in on the car body. The vertical installation mode further saves space, simplifies parts and is reliable in installation.

Compared with the prior art, the utility model provides a balance car steering mechanism and balance car, its beneficial effect includes:

on one hand, the traditional steering mechanism provided with the steering shaft is often required to be provided with auxiliary parts such as a bearing and a reset piece which are matched with the steering shaft, a wear-resistant sheet and the like is required to be arranged at a contact place, the number of the parts is large, the processing time of the steering shaft is long, and the cost is high;

on one hand, in the traditional steering mechanism, the steering shaft is usually horizontally installed and matched with auxiliary parts to be assembled on the vehicle body, so that a large space is occupied;

on one hand, in the traditional steering mechanism, the steering rod needs to be connected with a steering shaft or other transmission structures for steering detection and steering control, but the utility model can directly utilize a leg control rod or a hand control rod for steering, and has simple structure and convenient assembly;

on one hand, the steering control device is designed with a unique assembly structure which takes the spring steel plate as the steering plate for steering control, and has reasonable structural design and ingenious conception;

on one hand, the self toughness/deformation of the spring steel plate is utilized, and the strain detection assembly is arranged to measure the strain to control the steering, so that the cost is greatly reduced;

on one hand, the assembling mode of the Hall detection assembly is optimized, a reasonable magnetic field environment is constructed, the assembling mode of the Hall detection assembly is optimized, and the cost is further reduced;

on the one hand, the assembly mode of the automatic reset assembly is optimized, the installation is rapid, the steering rod can be reset rapidly, and the synchronism of steering control is effectively guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a partial exploded view of the balance car according to an embodiment of the present invention;

fig. 3 is an exploded view of a main body of the balance car according to an embodiment of the present invention;

FIG. 4 is a schematic view of the inside of a cover according to an embodiment of the present invention;

fig. 5 is an assembly view of the face cover and the steering assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of a soft rubber cover according to an embodiment of the present invention;

FIG. 7 is an assembly schematic of a portion of a steering assembly in accordance with an embodiment of the present invention;

fig. 8 is an exploded view of the components of fig. 7 in accordance with an embodiment of the present invention

Fig. 9 is a front view and a side view of a deflector according to an embodiment of the present invention;

fig. 10 is a schematic view of a steering mechanism according to an embodiment of the present invention;

fig. 11 is a schematic view illustrating the assembly of the middle tube according to an embodiment of the present invention;

fig. 12 is a schematic view of a portion of a steering mechanism and an enlarged view of a point a according to an embodiment of the present invention;

fig. 13 is an exploded view of the components of fig. 12 in accordance with an embodiment of the present invention;

fig. 14 is a schematic view of a mounting base according to an embodiment of the present invention;

fig. 15 is a schematic view of a rotary seat according to an embodiment of the present invention;

fig. 16 is a front view of a balance car according to an embodiment of the present invention;

fig. 17 isbase:Sub>A schematic sectional view of the balance car along the central axisbase:Sub>A-base:Sub>A and an enlarged view of the point B according to an embodiment of the present invention.

Reference numerals:

1, a vehicle body; 11 covers, 111 pedal installation parts, 1111 boss installation holes, 1112 lug installation holes, 112 steering installation parts, 113 display panel installation parts, 114 rear lamp strip installation parts, 115 power supply holes, 116 switch holes, 117 middle tube installation parts, 1171 first middle tube installation part, 1172 second middle tube installation part and 1173 third middle tube installation part; 12 bottom cover, 121 horn hole; 13, a middle pipe, 131 a third mounting part, 132 a flat part, 133 a folded part and 134 a mounting seat mounting hole; 14 pedals, 141 pedal covers, 142 protrusions, 143 convex strips, 144 convex columns and 145 pedal skirts; 15 a steering assembly; 151 soft rubber cover, 1512 mounting port, 1513 cover skirt, 1514 mounting port fixing strip; 152 a deflector plate, 1521 a first mounting hole, 1522 a second mounting hole; 153 inner bushing, 1531 limit edge, 1532 first mounting part, 1533 second mounting part, 1534 abutting surface, 1535 fourth mounting hole; 154 fixed seat, 1541 lower opening, 155 eccentric spanner, 1551 abutting end; 155 Hall detection rotating seats, 1551 magnets, 1552 magnet mounting seats, 1553 torsion spring mounting seats, 1554 buckles, 1555 first rotating surfaces and 1556 second center holes; 156. a torsion spring 1561 first free end, 1562 second free end; 157 Hall detection circuit board, 1571 first fixing hole, 1572 Hall element; 158 hall detection base, 1581 second fixed hole, 1582 first center hole, 1583 end cap, 1584 sleeve part; 159 mounting, 1591 third fixing hole, 1592 first mounting, 1593 second mounting, 1594 deflector plate mounting, 1595 mounting wall, 1596 third mounting hole, 1597 middle tube mounting; 16 front shells, 161 front cover light bars, 162 charging seat mounting holes, 163 switch mounting holes, 164 charging seats and 165 switches; 2, a steering rod; 3, wheel cover 31, wheel cover light bar 32; 5, a main control board, a 51 Bluetooth assembly, a 52 loudspeaker and a 53 loudspeaker fixing seat; 6, a battery pack; 7 display screen, 71 display screen cover; 8 spot light.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "mounted," "disposed," "provided," "connected," and "sleeved" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

When an installation is described as being "connected" or "connected," it can be directly connected or indirectly connected through intervening components. The terms "vertical," "horizontal," "parallel," and the like as used herein refer to a state of being substantially vertical or substantially horizontal within reasonable error and are not necessarily exact; the terms "front" and "rear" are merely used for convenience of description to describe relative positions of the components.

The utility model discloses if there is not the contrary suggestion, a part "is equipped with", "locates", "establishes", "connects" another subassembly to do not get rid of this two subassemblies structure as an organic whole.

Referring to fig. 1 to 2 and 16 to 17, a balance car includes a car body 1, wheel assemblies rotatably connected to both sides of the car body, and a steering rod 2 rotatably connected to the car body 1. The wheel assembly comprises wheels 3 on two sides, a pair of wheel covers 31 arranged on the wheels 3, and wheel cover light bars 32 arranged on the wheel covers 31. The balance car in the embodiment adopts leg control steering, the end part of the steering rod 2 is provided with a leg control handle which is suitable for abutting against the knee part of a human body, in other embodiments, a manual control mode can also be adopted, and the end part of the steering rod 2 is provided with an armrest which is suitable for being held and controlled by the hand of the human body. The wheel cover light bars 32 are electrically connected to the corresponding main control boards 5, so that the driving state of the balance car is reflected through different display states under the control of the main control boards 5 to remind people around, and the use safety is improved. It can be understood that, according to the driving status of the balance car, such as forward, backward, left turn, right turn, etc., two of the wheel cover light bars 32 may be illuminated and twinkling at the same time, or only one of the wheel cover light bars 32 is illuminated, twinkling or not illuminated at the same time, so as to convey the driving status information to the passerby.

Referring to fig. 3 to 5, the balance car body 1 provided in this embodiment includes a front cover 11 and a bottom cover 12 which are vertically arranged, the front cover 11 and the bottom cover 12 are fastened to form an internal cavity, a middle pipe 13 and a steering assembly 15 are installed, a front shell 16 is further arranged on the front side of the car body 1, and a pedal assembly is arranged on the car body 1. When a user steps on the pedal assembly, the weight is transmitted to the middle pipe 13 through the face cover 11, the middle pipe 13 is used as a framework inside the whole balance car, the weight of the user transmitted by the pedal assembly is indirectly borne, and the inner cavity between the face cover 11 and the bottom cover 12 is prevented from being extruded by the weight of the user.

By adopting the independent internal supporting framework-the middle pipe 13, the surface cover 11 is no longer used as a bearing part, and the surface cover 11 can be made of plastic materials and other materials with lower cost, light weight and better decorative effect, preferably plastic, thereby reducing the weight of the whole vehicle body, facilitating the processes of spraying, coloring and the like on the appearance of the vehicle body, and playing a role in preventing fouling and water. The bottom cover 12 may be made of the same material. Moreover, although the middle pipe 13 is used as a weight supporting main body, the gravity center of the vehicle body can be lowered, the structure is simplified, the number of parts is greatly reduced, the manufacturing cost is greatly reduced, the vehicle body platform is thinner, the ground clearance is increased, the trafficability characteristic is improved, the vehicle body volume is reduced, the weight is reduced, and the vehicle is lighter and more convenient to carry and carry.

Referring to fig. 5, the front cover 11 includes front and rear side walls at least partially covering the front and rear surfaces, and an upper wall forming the upper surface of the front cover 11, and the upper surface is divided into two pedal mounting portions 111 disposed in bilateral symmetry, a steering mounting portion 112 located between the two pedal mounting portions 111, and a display panel mounting portion 113. The rear side of the face cover 11 is provided with a rear lamp strip mounting portion 114, a power supply hole 115 and a switch hole 116. The rear light bar mounting part 114, the display panel mounting part 113, and the steering mounting part 112 are all in a through hole shape. The front cover light bar 161 is installed in the rear light bar installation portion 114, and the state of the front cover light bar 161 is similar to that of the wheel cover light bar wheel 32, which is not described again here. The power supply hole 115 and the switch hole 116 are respectively communicated with a charging seat mounting hole 162 and a switch mounting hole 163 on the front shell 16, and are provided with a charging seat 164 and a switch 165.

The corresponding position that the face lid 11 front side set up is provided with the shot-light hole, and the light that shot-light 8 sent can pass through the shot-light hole and jet out, also can play the illumination effect when increasing pleasing to the eye. The lamp hole can be provided with polaroids or light-transmitting pieces with different colors, so that the light transmitted by the lamp 8 is uniformly scattered or has special patterns, thereby increasing the interest.

Two main control boards 5 are respectively arranged below the face cover 11 and in corresponding position areas of the pedal mounting portion 111, drive control components such as gyroscopes and acceleration sensors are respectively integrated on the two main control boards 5, and the two main control boards 5 can respectively control the forward movement and the backward movement of the left wheel and the right wheel. A steering control assembly is also integrated in one of the main control panels 5 and is adapted to receive a detected steering signal to control steering. In other embodiments, it is also fully feasible to integrate a main control board 5, or to separately provide a circuit board for controlling the steering control assembly. The control assembly further comprises a Bluetooth control assembly 51, which can be connected with a mobile phone APP for communication and the like through Bluetooth, and the Bluetooth control assembly 51 can realize a music playing function through a loudspeaker 52 after receiving an external control signal (such as a control instruction on the APP).

A first middle tube mounting portion 1171, a second middle tube mounting portion 1172, and a third middle tube mounting portion 1173 are provided on a lower surface of the face cover 11. First well pipe installation department 1171 and second well pipe installation department 1172 become articulated seat fluted body, are located the both ends of face lid 11, are formed with the cavity of the outer surface profile laminating with well pipe 13 respectively to and be suitable for four bolt holes of fixed well pipe 13, third well pipe installation department 1173 is fastening bolt hole form, the distribution of symmetry is in face lid 11 both sides, well pipe 13 accessible fastening screw stretches into in third well pipe installation department 1173 fixed.

The bottom cover 12 is disposed below the face cover 11 and is fastened to the face cover 11 through a plurality of bolt holes. A horn hole 121 is formed below the bottom cover 12. The inner cavities of the face cover 11 and the bottom cover 12 are fixed with a horn fixing seat 53, the horn fixing seat is provided with a horn 52, and the horn 52 is arranged at a corresponding position above the horn hole 121.

The display panel mounting portion 113 is provided with the display panel 7 therein, and the display panel cover 71 is disposed on the display panel mounting portion 113 so as to be flush with the upper surface of the surface cover 11. The display screen 7 can be used for displaying the operation data of the feedback balance car, so that a user can know the current data and state of the car, and the driving safety is guaranteed. The operation data can comprise the operation speed per hour, the electric quantity and the like of the vehicle body, and can be displayed in a dial form, a percentage progress bar or other manners.

The main weight components such as the battery pack 6 are arranged below the wheel axis, so that the gravity center of the vehicle body is lower than the wheel axis more, and the gravity center is not required to be lowered by intermediate components such as a motor fixing seat. And the battery pack 6 is arranged at the center of the bottom cover 12 in an axisymmetric mode, so that the balance weight of the balance car is more favorably kept, and additional weight compensation elements are reduced. The battery pack 6 can adopt a single-layer tiling scheme, so that the thickness of a product can be greatly reduced, the ground clearance is improved, and the trafficability characteristic is increased.

Referring to fig. 10 to 11, the balance car body 1 uses the center tube 13 as a main weight support. Both ends of the middle tube 13 are flattened to form a flat part 132 for mounting the motor shaft. The flat portion 132 and the hollow tubular joint form a hinge 133. The flat portions 132 at both ends of the middle pipe 13 can be fixed to the first middle pipe mounting portion 1171 and the first middle pipe mounting portion 1172 by bolt fasteners. The middle pipe 13 is further symmetrically provided with a third mounting portion 131 in the middle, the third mounting portion 131 is a threaded hole and corresponds to the third middle pipe mounting portion 1173 on the face cover 11 in position, and the middle pipe 13 can penetrate through the third mounting portion 131 and the third middle pipe mounting portion 1173 through bolts to further enhance the fixing effect. Preferably, a mounting seat mounting hole 134 is further formed in the middle of the middle tube 13, the mounting seat mounting hole 134 corresponds to a bolt fastening hole of the mounting seat 159, and the middle tube 13 can be fixed in the mounting seat 159 by fastening bolts.

Referring to fig. 1 to 4, the pedal assembly includes a pair of pedals 14 disposed on the pedal mounting portion 111 of the upper surface of the face cover 11 and being bilaterally symmetrical, and a pair of pedal covers 141 respectively formed by injection molding with the respective pedals, wherein the pedal covers 141 are made of rubber, have flexibility and adsorptivity, and increase friction force of a user standing on the pedals. Preferably, the pedal cover 141 is made of rubber, and a pedal skirt 145 is formed at an edge thereof, and the pedal skirt 145 covers a joint portion of the pedal mounting portion 111 and the pedal 14.

The peripheral edge of each pedal 14 is formed with a plurality of protrusions 142 arranged at intervals, and the upper surface is also formed with a circle of surrounding convex strips 143, so that the connection strength between the pedal cover 141 and the pedal is enhanced when the pedal cover 141 is injection-molded. The lower surface of each pedal 14 is integrally extended with a circular protrusion 144, preferably, four corners of each pedal 14 are respectively provided with a circular protrusion 144, so as to conveniently extend into the corresponding protrusion mounting hole 1111 on the upper surface of the face cover 11, and the pedal 14 is fixed on the face cover 11 by a fastener. A protrusion (not shown) extends from a middle region of the lower surface of each pedal 14, and the protrusion can extend into a corresponding square protrusion mounting hole 1112 on the upper surface of the face cover 11, so as to facilitate positioning and fixing and further facilitate mounting of a pedal sensing device.

In other embodiments, the infrared sensor or other contact sensors can be arranged below the bumps, so that the stepping state of a user can be sensed conveniently to control the opening or closing of the balance car. In other embodiments, a fastening structure, such as a fastening strip slot, may be additionally provided to keep the pedal assembly tightly connected to the face cover 11.

In other embodiments, in order to obtain better pedaling feeling, a buffer layer, such as a sponge or other soft material support, may be further disposed between the surface cover 11 and the pedal assembly to improve the pedaling feeling.

As shown in fig. 5 to 9, the steering assembly includes an inner bushing 153 sleeved on one end of the steering rod 2, a fixing base 154 sleeved on the outside of the steering rod 2, a soft rubber cover 151 located under the fixing base 154, and a steering plate 152 with one end fixed inside the inner bushing 153. The steering assembly further includes a mounting base 159 fixedly attached to the other end of the steering plate 152 and a torsion spring 156 mounted to the inner bushing 153.

Referring to fig. 7 to 8, the cross-sectional shape of the inner bushing 153 corresponds to the inner cross-sectional shape of the steering rod 2, and the inner bushing can be inserted into the rod hole cavity of the steering rod 2, and is mainly used for fixing one end of the steering plate 152, so as to generate a cantilever-like fixing effect, facilitate the steering plate 152 to rotate or bend or deform in a limited manner when being subjected to the steering action of the steering rod 2, and recover to the original shape after the external force is removed. The inner bushing 153 is provided therein with a second mounting portion 1533 adapted to mount and fix the steering plate 152, the second mounting portion 1533 is a through-groove adapted to the shape of the steering plate 152 and formed to have a length passing through the inner bushing 153, and the steering plate 152 is inserted and fixed from below the through-groove.

In order to ensure the fixing effect of the steering plate 152, it is preferable that two fourth mounting holes 1535 are formed in the inner bushing 153 in the height direction of the steering plate 152, and the fourth mounting holes 1535 correspond to the first mounting holes 1521 of the steering plate 152 and can be fastened by inserting pins or bolts. In other embodiments, it is also possible to mount the mounting holes by means of a tight fit or gluing or pressing. The number and the position of the mounting holes can also be selected according to the practical situation.

A first mounting portion 1532 adapted to mount the torsion spring 156 is further disposed at the front side of the lower portion of the inner bushing 153, the first mounting portion 1532 is in a shape of a counter sink and adapted to receive the middle portion of the torsion spring 156, and the torsion spring 156 is mounted on the first mounting portion 1532 and can rotate or swing with the rotation or swing of the inner bushing 153. In other embodiments, the first mounting portion 1532 may also be hook-shaped or convex, and only needs to fix the torsion spring 156 and ensure that the torsion spring 156 can move with the inner liner.

The inner bushing 153 has a limiting edge 1531 formed on the outer surface of the lower side thereof, and the limiting edge 1531 protrudes slightly beyond the outer diameter of the inner bushing 153 at the outer edge thereof and is adapted to position the fixing base 154 and the soft rubber cover 151. Preferably, the mounting opening fixing strip 1514 of the soft rubber cover 151 is clamped above the limiting edge 1531, or the lower edge of the fixing base 154 is clamped above the limiting edge 1531, so that the mounting heights of the soft rubber cover 151, the limiting edge and the fixing base can be conveniently positioned.

With continued reference to fig. 7 to 9, the fixing seat 154 is externally sleeved on the steering rod 2, and has a hollow cavity shape, and the cross-sectional shape thereof is matched with the inner bushing 153 and the steering rod 2. The hollow cavity of the fixing base 154 forms a lower opening 1541 suitable for fitting, involuting or clamping with the mounting hole 1512 of the soft rubber cover 151.

The side of the fixed seat 154 is further provided with an eccentric wrench 155. The eccentric wrench 155 is rotatably coupled to an outer side surface of the fixing base 154 and is rotatable in a radial direction of the fixing base 154. The eccentric end of the eccentric wrench 155 extends into the cavity of the fixing base 154 to form an abutting end 1551, a through hole is formed at a corresponding position of the steering rod 2, the eccentric end of the eccentric wrench 155 extends into the through hole and abuts against the inner bushing 152, and the abutting part on the inner bushing 152 is an abutting surface 1534. In order to increase the abutting area, it is preferable that the steering rod 2, the inner bushing 152, and the fixing seat 154 are configured to have at least one plane as a triangle-like structure of the abutting surface, and the inner bushing 152 and the steering rod 2 can be abutted on the triangle plane on one side by rotating the eccentric wrench 155. In other embodiments, it is also possible to use a conventional cylindrical cross-section, and only the retaining bracket 154 needs to be able to fix the inner bushing 152 and the steering rod 2 to each other without relative rotation/sliding.

With continued reference to fig. 6, the soft gel cap 151 includes a mounting aperture 1512 adapted to be mounted to the steering column 2 and a cap skirt 1513. In this embodiment, the mounting opening 1521 is located below the fixing seat 154 and is clamped and fixed with the limiting edge 1531 of the inner bushing 153, and in other embodiments, the mounting opening 1521 is completely clamped and fixed with the steering rod 2 or the fixing seat 154. The cover skirt 1513 may be made of a flexible material such as rubber to maintain its toughness, and may be deformed by an external force to maintain the coupling. The cover skirt 1513 is engaged with the steering mounting portion 112 of the face cover 11. Preferably, the cover skirt 1513 may be multi-folded and fixed by a folded notch at the hole edge of the steering mounting portion 112 to shield the steering mounting portion 112 of the cover 11 and prevent dust from falling or an erroneous operation from entering fingers.

One end of the deflector plate 152 is fixed in the inner liner 153. Preferably, the deflecting plate 152 is a thin plate made of 65Mn alloy material through stamping, blanking and heat treatment, and the heat-treated spring steel plate has good elasticity and can be bent under the action of external force. The degree of bending of the steering plate 152 can be sensed by setting a detection mechanism, and the steering angle can be measured.

Referring to fig. 9, the steering plate 152 is substantially an arc thin plate, and the radian α of the steering plate is mainly adapted to the installation radian of the steering rod, so as to meet the use habit of the user for operating and steering the balance car by using leg control, foot control or hand control. Typically, α is less than 30 degrees.

In this embodiment, the steering plate 152 is provided with a first mounting hole 1521 adapted to be fixedly connected to the inner bushing, and a second mounting hole 1522 adapted to be connected to the mounting seat 159. Preferably, the first mounting holes 1521 are located in an upper region of the bending region, the second mounting holes 1522 are located in a lower region of the bending region, the number of the first mounting holes 21 is two in the height direction, and the number of the second mounting holes 1522 is three in a delta arrangement.

In other embodiments, the arrangement and number of the first and second holes 1521, 1522 can be selected adaptively, but it should be noted that the flexibility/elasticity/toughness of the steering plate 152 can be maintained without the tight fit of the first and second holes 1521, 1522 to limit the bending movement/elastic deformation of the steering plate 152.

Specifically, the upper portion of the steering plate 152 is inserted and fixed to the inner bushing 153, and substantially forms an upper fixing area S1, the lower portion of the steering plate 152 is abutted/screwed to the mounting seat 159, and substantially forms a lower fixing area S3, and a deformation area S2 suitable for bending movement/elastic deformation is formed between the S1 and S3 areas. In other embodiments, in order to measure the steering angle of the steering rod 2, the strain degree and the magnitude of the strain amount in the S2 region can be measured by a form of a close-fitting strain sensor in the S2 region, so as to calculate the steering angle of the steering rod 2 and control steering.

The other end of the diverter plate 152 is fixedly attached to a mounting block 159. Referring to fig. 10, the mounting seat 159 includes a first mounting seat 1592 and a second mounting seat 1593 that are mated up and down. First mount 1592 and second mount 1593 form a middle tube mount 1597 having a concave cavity that conforms to the outer surface profile of middle tube 13 and is adapted to receive middle tube 13 and to secure middle tube 13 to mount 159 by bolts.

With continued reference to fig. 14, formed on the front side of the pocket for receiving the center tube 13 is a diverter plate mount 1594 adapted to mount the diverter plate 152. The diverter plate mount 1594 has a rectangular channel shape with a mounting wall 1595 on one side, the mounting wall 1595 being provided with a third mounting hole 1596, the third mounting hole 1596 being positioned to correspond to the second mounting hole 1522 of the diverter plate 152 and adapted to receive a fastening bolt to extend through and fixedly couple the diverter plate 152 to the mounting wall 1595. The front side of the first mount 1592 is also formed with a pair of third fixing holes 1591 adapted to fix the steering sensing assembly.

The hall technology has been widely used since 1879, and particularly, the signal stability and the product reliability of the hall technology are fully verified in the steering control of a balance car. The Hall sensor has the advantages of firm structure, light weight, small volume, convenient installation, low power consumption, high frequency up to lMHz, mechanical vibration resistance and high dustproof and waterproof grade. The Hall principle is that a Hall semiconductor chip is placed in a magnetic field environment, and a constant current I passes through a Hall semiconductor element. Under the action of Lorentz force, electrons are deflected to one side when passing through the Hall semiconductor element, so that a potential difference is generated on the other two sides of the Hall semiconductor element, namely a Hall voltage.

In this embodiment, an embodiment in which the hall principle is used for the steering detection will be described in detail. In other embodiments, the above-mentioned manner of detecting the degree of strain in the strain region S2 of the steering plate 152 may be used to detect the steering control.

The steering assembly further includes a hall detection assembly that can detect the steering angle of the steering rod 2. In this embodiment, the hall detection assembly includes a torsion spring 156 that can swing along with the swing of the steering rod 2, a hall detection circuit board 157 that can collect a steering signal, a hall detection base 158 and a hall detection rotating base 155 that are adapted to provide a magnetic field environment for the hall detection circuit board 157.

Referring to fig. 12 to 13, a hall detection circuit board 157, a hall detection base 158 and a hall detection rotating base 155 which are rotatably fastened, and a torsion spring 156 are sequentially disposed from front to back. The hall detection circuit board 157 includes a circuit board and a hall element 1572 electrically connected to the circuit board, and the hall element extends backward into a magnetic field formed by the hall detection base 158 and the hall detection rotary base 155. The hall detection circuit board 157 is also provided with first fixing holes 1571 at both ends thereof, which are adapted to fix itself.

Referring to fig. 13 and 17, the hall detecting base 158 and the hall detecting rotary base 155 can rotate relatively. The hall sensing base 158 includes an end cap portion 1583 adapted to be fixed at the front side, and a sleeve portion 1584 adapted to be rotatably fitted with the hall sensing rotary base 155 at the rear side. The hall sensing base 158 is hollow as a whole, and has a first center hole 1582 formed at the center, and the hall element 1572 can be inserted into the first center hole 1582. The hall sensing base 158 further includes second fixing holes 1581 provided at both ends of the end cover part 1583. The first fixing hole 1571, the second fixing hole 1581, and the third fixing hole 1591 of the first mounting seat 1592 correspond in position, and are inserted and fastened by a pin or a bolt, so that the hall sensing circuit board 157 and the hall sensing base 158 are fixed to the mounting seat 159. In other embodiments, there are many ways to fix the hall detection circuit board 157, the hall detection base 158 and the mounting base 159, and it is also fully feasible that the hall detection circuit board 157 and the hall detection base 158 are respectively fixed with the mounting base 159 by fasteners, or fixed by means of clamping, welding, or adhering.

Referring to fig. 13 and 15, the hall sensing rotary base 155 is integrally formed as a ring-shaped hollow structure, and a second central hole 1556 is formed in the center to accommodate the hall element 1572. The second center hole 1556 is coaxially disposed with the first center hole 1582 to form a magnetic field loop that varies with the steering change of the steering rod 2. The hall detection rotating seat 155 comprises a first rotating surface 1555 which is matched with the inner wall of the sleeve part 1584 of the hall detection base 158 and can rotate relatively, and a buckle 1554 which is suitable for being buckled with the hall detection base 158. In other embodiments, other connecting structures can be adopted, and only the hall detection rotating seat 155 and the hall detection base 158 are rotatably connected.

Two magnet mounting seats 1552 are symmetrically arranged between the second central hole 1556 and the first rotating surface 1555 of the Hall detection rotating seat 155, and two magnets 1551 with opposite magnetic poles are fixed in the magnet mounting seats 1552. Two torsion spring mounting seats 1553 symmetrically extend outwards from the upper side of the first rotating surface 1555 of the hall detection rotating seat 155 and are respectively suitable for movably combining/connecting with two ends of the torsion spring 156. Preferably, the torsion spring mounting seat 1553 is in an open horizontal groove shape and is provided with a rear wall surface and a bottom wall surface which are adjacent to each other, and the end part of the torsion spring can abut against the rear wall surface and the bottom wall surface. In other embodiments, the free ends of the torsion spring 156 can be engaged with the hall sensing rotary seat 155 in a variety of ways, for example, it is fully feasible to arrange the torsion spring mounting seat 1553 on one side in a slot shape so that the free ends of the torsion spring 156 can be inserted into the slot for sliding fixation, or arrange the torsion spring mounting seat 1553 on one side in a hook shape so that the free ends of the torsion spring 156 can be movably hooked. In other embodiments, one of the free ends of the torsion spring 156 may be fixedly connected to one of the torsion spring mounts 1553, and the other free end of the torsion spring 156 may movably abut against the torsion spring mount 1553, and may be suspended on the swing path of the torsion spring mount.

The torsion spring 156 includes a bent protrusion, a middle fixing section fixed in the first mounting portion 1532 of the inner bushing 153, and two free ends extended to both sides, a first free end 1561 and a second free end 1562. The first free end 1561 and the second free end 1562 are movably fixed to the torsion spring mounting seat 1553, respectively.

When in use, the inner bushing 153 swings with the rotation of the steering rod 2, and drives the torsion spring 156 fixed in the first mounting portion 1532 to tilt up and down with the middle fixing section as a pivot. When the steering rod 2 rotates clockwise, the inner bushing 153 rotates clockwise, so as to drive the first free end 1561 of the torsion spring 156 to rise, and the second free end 1562 to fall and swing, and then the second free end 1562 pushes the hall detection rotation seat 155 to rotate in the hall detection base 158, so that the magnetic field environment changes, the hall element 1572 extending into the magnetic field detects the change of magnetic quantity, converts the magnetic signal into an electrical signal, and correspondingly changes the rotation angle quantity of the corresponding rotation rod, thereby realizing the detection of the steering angle.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A steering mechanism of a balance car comprises a car body and wheel components which are rotationally connected with the two sides of the car body, wherein the car body is provided with a steering component and a control component, the steering component comprises a steering rod, the steering rod is rotationally connected with the car body and can swing under the action of external force,

the automobile steering wheel further comprises a steering plate, the upper end of the steering plate is fixedly connected with the steering rod to form a fixed area S1, the lower end of the steering plate is fixedly connected with the automobile body to form a fixed area S3, a deformation area S2 is formed between the fixed area S1 and the fixed area S3, the steering plate can utilize self toughness/elasticity, and bending deformation is generated in the deformation area S2 under the swinging action of the steering rod.

2. The balance car steering mechanism of claim 1, wherein the steering assembly further comprises: the steering device comprises an inner bushing embedded in the steering rod, a fixed seat sleeved outside the steering rod and an installation seat fixed in the vehicle body, wherein the upper end of the steering plate is embedded in the inner bushing for fixation, and the lower end of the steering plate is fixedly connected with the installation seat;

and/or, the car body is provided with a steering installation part suitable for installing the steering rod, the steering installation part is in a through hole shape, the steering assembly further comprises a soft rubber cover suitable for shielding the steering installation part, the soft rubber cover comprises an installation opening and a cover skirt edge, the steering rod is installed on the installation opening, and the cover skirt edge covers the hole edge of the steering installation part;

and/or, the mount pad includes first mount pad and the second mount pad of butt joint from top to bottom, first mount pad with still form between the second mount pad and be suitable for the well pipe installation department of fixed well pipe.

3. The steering mechanism of the balance car according to claim 2, wherein the fixing seat comprises an eccentric wrench, and the fixing seat can tightly fix the steering rod and the inner bushing by rotating the eccentric wrench;

and/or the inner bushing comprises a limiting edge, the limiting edge protrudes out of the inner bushing and is suitable for positioning the upper fixed seat and the lower soft rubber cover;

and/or the steering plate is in a thin plate shape;

and/or the steering plate is vertically arranged between the mounting seat and the inner bushing;

and/or a first mounting hole is arranged in the fixing area S1, a fourth mounting hole is arranged at the corresponding position of the inner bushing, and the steering plate and the inner bushing are fastened by penetrating through the first mounting hole and the fourth mounting hole through bolts;

and/or a second mounting hole is arranged in the fixing area S3, a third mounting hole is arranged at a corresponding position of the mounting seat, and the steering plate and the mounting seat are fastened by penetrating through the first mounting hole and the third mounting hole through bolts;

and/or, the mount pad is including being suitable for the installation the deflector plate installation department of deflector plate, the deflector plate installation department is the rectangle trough-shaped, the deflector plate installation department is including the installation wall, the deflector plate can lean on the installation wall installation is fixed, the installation wall is located the pivot line of the swing plane of steering column.

4. The balance car steering mechanism according to any one of claims 1 to 3, further comprising a steering detection assembly adapted to detect a swing angle of the steering rod.

5. The balance car steering mechanism according to claim 4, wherein the steering detection assembly comprises a strain detection assembly, the strain detection assembly comprises a strain sensor attached to the deformation region S2, and the steering is controlled by detecting the bending deformation amount of the deformation region S2.

6. The steering mechanism of the balance car according to claim 4, wherein the steering detection assembly comprises a Hall detection assembly, the Hall detection assembly comprises a Hall detection circuit board provided with a Hall element, a Hall detection base and a Hall detection rotating seat which can rotate mutually,

the Hall detection rotating seat can swing along with the swing of the steering rod, a magnet is arranged on the Hall detection rotating seat, the Hall element can extend into a changeable magnetic field environment formed by the Hall detection base and the Hall detection rotating seat, and the steering is controlled by detecting the change of magnetic flux.

7. The steering mechanism of claim 6, further comprising an elastic reset member, wherein the elastic reset member is movably connected to the Hall detection rotating base and can swing along with the swing of the steering rod, so as to push the Hall detection rotating base to rotate relative to the Hall detection base.

8. The steering mechanism of balance car according to claim 7,

the Hall detection rotating seat is rotatably clamped inside the Hall detection base, and a buckle is arranged on the Hall detection rotating seat;

and/or a first fixing hole is formed in the Hall detection circuit board, a third mounting hole is formed in the mounting seat, the first fixing hole and the third fixing hole correspond in position and are fixedly connected through a fastener;

and/or a second fixing hole is arranged on the Hall detection base, a third mounting hole is arranged on the mounting seat, the second fixing hole and the third fixing hole correspond in position and are fixedly connected through a fastener;

and/or the Hall detection base comprises a sleeve part, and the Hall detection rotating seat comprises a first rotating surface which can be in rotating fit with the inner part of the sleeve part;

and/or a first central hole is formed in the center of the Hall detection base, a second central hole which is coaxial with the first central hole is formed in the center of the Hall detection rotating seat, and the Hall element can extend into the second central hole;

and/or the Hall detection rotating seat is symmetrically provided with two magnet mounting seats, and two magnets with opposite magnetic poles are fixed in the magnet mounting seats;

and/or the Hall detection rotating seat and the steering rod synchronously swing;

and/or two elastic reset piece mounting seats are symmetrically arranged on the Hall detection rotating seat;

and/or, elasticity piece that resets is the torsional spring, including the canned paragraph at middle part and two free ends that extend to both sides from the middle part, first free end and second free end, hall detects that what rotate the seat on the symmetry is equipped with two torsional spring mount pads, the canned paragraph with the steering column is fixed, two the free end respectively with what the torsional spring mount pad activity was supported the top.

9. The steering mechanism of balance car according to claim 8, wherein a first mounting portion is provided on the front side of an inner bushing embedded in said steering rod, said fixing sections bent to protrude from both said free ends are fixed in said first mounting portion,

and/or the presence of a gas in the gas,

along with the swing of steering column, the first free end of torsional spring rises, and the second free end descends, two the free end with the cooperation mode of torsional spring mount pad, including one of the following list:

the torsion spring mounting seat is an open horizontal groove and is provided with a rear wall surface and a bottom wall surface which are adjacent, and the free end can be abutted against the rear wall surface and the bottom wall surface;

the torsion spring mounting seat comprises a slot, and the first free end movably extends into the slot;

the torsion spring mounting seat comprises a clamping hook, and the first free end can be connected with the clamping hook;

the torsion spring mounting seats are respectively a first torsion spring mounting seat and a second torsion spring mounting seat, the first free end is fixedly connected with the first torsion spring mounting seat, and the second free end is suspended on a swinging path of the second torsion spring mounting seat.

10. The balance car is characterized by comprising the balance car steering mechanism as claimed in any one of claims 1 to 3 and 5 to 9, wherein the car body comprises a surface cover and a bottom cover which are arranged up and down, and a middle pipe arranged in the car body, two pedal installation parts are symmetrically arranged on the surface cover, a steering installation part is arranged between the pedal installation parts, and the steering plate can extend into the steering installation part and is vertically arranged on the car body.

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