CN218463791U - Balance car and supporting framework thereof - Google Patents

Abstract

The utility model discloses a balance car and support chassis thereof, including being used for the wheel connection with be used for supplying the rider to trample the supporting part that bears, this support chassis has two plate-like supporting parts that are used for forming two pedal regions respectively, is the intermediate junction portion that is used for connecting two plate-like supporting parts between two plate-like supporting parts, and this support chassis's both ends are wheel connection portion, are provided with the enhancement groove that spanes two plate-like supporting parts between two wheel connection portions. This scheme has simplified balance car body structure, has reduced manufacturing cost.

Description

Balance car and supporting framework thereof

Technical Field

The utility model belongs to the technical field of the balance car, especially, relate to a two-wheeled driven balance car and support chassis thereof.

Background

The operation principle of the two-wheeled electrodynamic balance vehicle, also called a human-computer interaction motion sensing vehicle and a thinking vehicle, is mainly established on the basic principle called dynamic stability, the gyroscope and the acceleration sensor in the vehicle body are utilized to detect the change of the vehicle body posture, and a servo control system is utilized to accurately drive a motor to carry out corresponding adjustment so as to keep the balance of the system.

The existing man-machine interaction motion sensing vehicle is generally divided into two types, namely an operation rod and a non-operation rod, wherein the man-machine interaction motion sensing vehicle with the operation rod is provided with the man-machine interaction motion sensing vehicle, and the forward movement, the backward movement and the steering of the man-machine interaction motion sensing vehicle are specifically controlled by the operation rod. The human-computer interaction somatosensory vehicle without an operating rod is a foot-controlled balance vehicle, the forward and backward movement of the vehicle is controlled by the integral inclination of a vehicle body, the turning control principle of the existing foot-controlled balance vehicle has two modes, one mode is a traditional swing vehicle structure (patent documents with the publication number of CN104029769A and the like), the turning of the vehicle is controlled by controlling the rotating speed difference of a hub motor by sensing the difference of the rotating angles of two pedals, the vehicle body structure of the mode inevitably comprises a complex rotating mechanism, a limiting mechanism for limiting the rotating angle of a pedal assembly, two groups of gyroscopes for sensing the angle, an acceleration sensor and other assemblies, when a rider controls the vehicle, the rider twists the pedal assemblies at two sides by different amplitudes to further realize turning control, and the structure is relatively complex; the other type is that support chassis is an overall structure, and the unable relative rotation of pedal subassembly in both sides also is called and feels the car, and the difference that produces by the step gesture through two pedal positions of foil gage sensing, the difference in rotation speed of control in-wheel motor realizes controlling the vehicle and turns, wherein, produces the difference mode by the step gesture and includes following several kinds again:

1) As disclosed in patent documents CN205396356U, CN110641594A, CN212354251U, CN110641593A, CN208393563U, US10843765B2 and the like, a rider adjusts the gravity centers of the left and right feet to apply different gravity/pressure to the two pedal assemblies, detects the gravity/pressure difference of the pedal assemblies, and controls the in-wheel motor to drive the vehicle to turn by the controller; data of gravity/pressure changes caused by fluctuations in a part of riding needs to be rejected.

2) As disclosed in patent documents CN208216900U, CN110758620A, CN111591382a and the like, the intention of the rider is determined by sensing the change in the gravity/pressure between the front and rear soles of both feet of the rider, and the in-wheel motor is controlled by the controller to drive the vehicle to turn according to the difference in the change between the two feet.

Among the prior art, the automobile body is an overall structure's balance car, generally adopts metal support frame, and the support frame who adopts the metal material can have higher support intensity, and bearing capacity is strong, but also has following several shortcomings:

1. the metal supporting framework is not easy to decorate in appearance, high in modeling and processing cost, and only suitable for being hidden inside the vehicle body but not suitable for being exposed outside the vehicle body, so that the supporting framework mostly needs to be covered by an external shell.

2. The material cost and the manufacturing and processing cost of the supporting framework made of metal materials are high, so that the manufacturing cost of the balance car is high.

3. The supporting framework made of metal materials is heavy in weight, so that the whole balance car is large in mass.

4. In the prior art, a metal pipe is also used as a support framework, but the connecting part of the metal pipe and the wheel axle needs to be particularly reinforced through a reinforcing structure or a reinforcing part, so that the structure is complex, and the processing and manufacturing cost is still higher.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a balance car and support chassis thereof adopts the integrative injection moulding of stereoplasm plastics, simplifies balance car body structure, reduces manufacturing cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a support skeleton of balance car, is including the wheel connecting portion that is used for being connected with the wheel and the supporting part that is used for supplying the rider to trample and bear, and this support skeleton is a unitary structure, and this support skeleton has two platelike supporting parts that are used for forming two pedal regions respectively, is the intermediate junction portion that is used for connecting two platelike supporting parts between two platelike supporting parts, and the both ends of this support skeleton are wheel connecting portion, are provided with the reinforcing groove that spans two platelike supporting parts between two wheel connecting portions. Thus, the vehicle body structure is simplified and the manufacturing cost is reduced.

Preferably, the support frame is of an integrally formed rigid plastic construction. The hard plastic is a plastic material with certain rigidity and capable of bearing required weight: such as PP, ABS, PC, PVC, etc. or plastics compounded with one or more of these.

Preferably, the wheel connecting part clamps and fixes the wheel shaft by the wheel shaft fixing plate and the wheel shaft pressing plate in a vertical matching way.

Preferably, the supporting framework is provided with a fixing plate mounting groove for embedding a wheel shaft fixing plate and an anti-skid structure for preventing a rider from treading and skidding.

Preferably, the stiffening channel is located on the wheel axis.

Preferably, a rigid reinforcing member is filled in the reinforcing groove, and the reinforcing member comprises a metal pipe, a metal rod, a plastic pipe, a plastic rod or a wood rod.

Preferably, the reinforcing member is a metal square pipe.

Preferably, the depth of the reinforcing groove is not less than 3cm.

Preferably, a bead groove structure formed by a plurality of beads and reinforcement grooves distributed at intervals is provided at a portion between the wheel connecting portion and the reinforcement groove.

Preferably, the intermediate connecting portion has a width reduced with respect to a plate-like support frame having wheel stoppers formed extending on both front and rear sides thereof adjacent to the wheel, so that the entire support frame has a butterfly wing shape like an X; a plurality of sensors for detecting bearing pressure are arranged in each pedal area, pedal panels for covering the sensors are fixedly arranged on the supporting framework, the pedal panels in the two pedal areas are connected into a whole, and the integrally formed pedal panel is arranged in the middle of the supporting framework and covers the reinforcing groove and the wheel connecting part; the pedal panel is made of flexible or elastic plastic and/or rubber and is made into a thin plate shape.

A balance car comprises the support framework.

The utility model discloses owing to adopted above technical scheme, the hard plastic structure of support chassis for integrated into one piece, support chassis can expose in the automobile body outside like this, can have more appearance modeling, and automobile body inner structure is simpler, and the space is bigger, adopts the strengthening groove structure under the condition of guaranteeing automobile body bearing capacity, has reduced balance car manufacturing cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments of the application are intended to be illustrative of the application and are not intended to limit the application.

Fig. 1 is a perspective view of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a support frame according to embodiment 1 of the present invention (with sensors and reinforcements installed);

fig. 3 is a schematic structural view of embodiment 1 of the present invention (with the lower case removed);

fig. 4 is a partial sectional view of a support frame according to embodiment 1 of the present invention.

Wherein the reference numerals are as follows:

1. a wheel; 101. a wheel axle fixing plate; 102. a wheel axle pressing plate; 2. a pedal panel; 3. a reinforcement; 4. a sensor; 7. a lower housing; 8. a support framework; 802. and a reinforcing groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, the singular is also intended to include the plural unless the context clearly dictates otherwise, and further it is to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the features, steps, operations, devices, components and/or combinations thereof.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses an it is convenient to express to use and feel the parallel horizontal direction of car craspedodrome direction with human-computer interaction body as preceding rear direction, use and feel car craspedodrome direction vertically horizontal direction with human-computer interaction body as left right direction, use and feel car craspedodrome direction vertically vertical direction with human-computer interaction body as upper and lower direction.

Example 1:

a supporting frame as shown in fig. 2 and 3 is an integral structure (corresponding to a cover body, the supporting frame and the lower housing are fixedly connected to form a vehicle body shell), two ends of the supporting frame 8 are wheel connecting portions, the wheel connecting portions are vertically matched and clamped with a wheel axle of a fixed wheel 1 through a wheel axle fixing plate 101 and a wheel axle pressing plate 102, the supporting frame 8 is provided with two plate-shaped supporting portions for respectively forming two pedal areas, the plate-shaped supporting portions are used for a rider to pedal for bearing weight, an intermediate connecting portion for connecting the two plate-shaped supporting portions is arranged between the two plate-shaped supporting portions, the intermediate connecting portion has a width contraction relative to the plate-shaped supporting portions, the supporting frame 8 extends to form wheel stoppers near the front side and the rear side of the wheel 1, so that the whole supporting frame has a butterfly wing shape similar to an X shape.

The support framework is used for bearing and installation wheel, mainly includes the wheel connecting portion that is used for being connected with the wheel and is used for supplying the rider to trample the supporting part that bears, wheel connecting portion and supporting part integrated into one piece or direct fixed connection or via the indirect fixed connection of other rigid part to guarantee that the rider's weight transmits to the wheel via the support framework.

In this embodiment, the support frame 8 is of an integral plate structure, and the plate structure has a large area, high strength and a small thickness, so that the parts can be conveniently arranged and installed, especially, the battery can be conveniently installed, the ground clearance of the vehicle is large, and the trafficability characteristic is good. The plate-like structure is not limited to a flat plate structure, and includes various kinds of substantially plate-like structures having a curved or uneven structure or extending portions in various directions.

In the present embodiment, the supporting frame 8 (including the two wheel connecting portions and the two supporting portions) is preferably integrally formed of a rigid plastic. The hard plastic is a plastic material with certain rigidity and capable of bearing required weight: such as PP, ABS, PC, PVC, etc. or plastics compounded with one or more of these. Therefore, the supporting framework can be exposed outside the vehicle body, more appearance models can be provided, and the manufacturing cost of the balance vehicle is reduced.

In order to improve the rigidity and strength of the plastic support frame, in the preferred embodiment, as shown in fig. 2 and 3, the wheel connecting portions near the two ends of the support frame 8 are vertically matched with and clamped with the wheel shaft of the wheel 1 through the wheel shaft fixing plate 101 and the wheel shaft pressing plate 102, so that the wheel shaft pressing plate 102, the wheel shaft fixing plate 101, the wheel connecting portions vertically clamped by the wheel shaft fixing plate and the wheel shaft are firmly combined into a whole, and the connecting strength of the wheel shaft and the wheel connecting portions is greatly increased. Like this, when the rider stepped on the balance car, two wheels inwards exerted the extrusion force to the support chassis from both sides through the wheel connecting portion that links as an organic whole, have improved the bulk strength of support chassis.

This embodiment is preferred, and support chassis 8 is provided with the reinforcement groove 802 that spans two supporting parts between two wheel connection portions, and the horizontal bearing structure that adopts the formation of a plurality of reinforcement groove of certain degree of depth has stronger adaptability and horizontal pultrude bearing capacity, can increase the firm degree of plastics support chassis.

In order to further improve the rigidity and the bearing capacity of the plastic supporting framework, in this embodiment, preferably, the reinforcing groove 802 is filled with a rigid reinforcing member 3, and the reinforcing member 3 may be a metal pipe, a metal rod, a plastic pipe, a plastic rod, a wood rod, or the like. Like this, can provide higher bearing capacity by the reinforcement between two supporting parts of supporting framework, avoided the problem that the big influence bearing capacity of strengthening the groove span, the extrusion force that receives the supporting framework conducts to between reinforcement tip and the wheel connecting portion, and the extrusion deformation span is littleer, and firm degree is higher to promote the bearing capacity of whole car.

In this embodiment, the rigid reinforcing member is preferably a metal square pipe. Thus, the structure is simple, the processing and material taking are convenient, and the manufacturing cost is low.

In the preferred embodiment, the opening of the reinforcing groove 802 is upward, so that the reinforcing part is upward during the transportation and normal use of the vehicle, and therefore, the installation is convenient, the reinforcing part is not easy to fall out of the reinforcing groove, and a rider steps on the reinforcing part during the use, so that the reinforcing part is in closer contact with the supporting framework and is not easy to loosen.

This embodiment is preferred, as shown in fig. 4, the reinforcing member 3 and the corresponding reinforcing groove 802 have a certain depth (preferably not less than 3 cm), so that when the user steps on the balance car, the user applies a large force to both ends of the reinforcing member, usually to force the reinforcing member to bend in the up-and-down direction, through the design of the end portion of the reinforcing member and the depth of the reinforcing groove, the end wall of the reinforcing groove of the supporting framework can generate a deformation that hinders the end portion of the reinforcing member from generating a non-vertical direction, and at the same time, the close degree of fit between the reinforcing member and the reinforcing groove can be further enhanced.

In a further preferred embodiment, as shown in fig. 2, a rib groove structure formed by a plurality of reinforcing ribs and reinforcing grooves at intervals is disposed at a position between the wheel connecting portion and the reinforcing groove 802 of the supporting framework 8, and the rib groove structure has strong adaptability and transverse squeezing and pulling bearing capacity, so that the overall structure of the plastic supporting framework is firmer and the bearing capacity is stronger.

The plastic support framework in the embodiment adopts an integrated structure, the wheel connecting part connected with the wheel and the supporting part used for the rider to trample and bear are organically combined into the integrated structure, the stress synergy between the wheel connecting part and the supporting part is fully utilized, the plastic support framework adopts a plastic forming reinforcing structure, more connecting structures do not need to be arranged between the rigid reinforcing part and the wheel axle, the support framework connecting structure is simplified under the condition of ensuring strong bearing capacity, the mounting is convenient, and the manufacturing cost of the balance car is greatly reduced.

Preferably, the supporting framework is used as an upper shell of the vehicle body, most of the supporting framework is exposed outside the vehicle body, a plurality of sensors for detecting the change of the bearing pressure are arranged in each pedal area of the supporting framework, and the controller controls the balance vehicle to move forwards, move backwards and turn according to detection signals of the gyroscope and the sensors. The supporting framework 8 is provided with a plurality of pedal panels 2, and the pedal panels 2 cover the sensors 4.

In the preferred embodiment, the pedal panel 2 is fixedly mounted on the supporting framework 8, so that the pedal panel 2 can be made of flexible or elastic plastic and/or rubber, has better deformability and resilience, can effectively conduct pressure to the sensor only through deformation of the pedal panel, enables the sensor to better sense bearing pressure change, and the supporting framework can be made of plastic or other rigid materials with better rigidity strength, so that the vehicle body has stronger bearing capacity, is firmer and more stable, and better protects internal parts of the vehicle body; meanwhile, the fixed connection mode of the pedal panel 2 and the supporting framework 8 also contributes to the sealing between the two.

In the present embodiment, as shown in fig. 1 and 2, the two footrest panels 2 in the footrest area are integrally connected, and the two footrest panels 2 extend outward to form a wheel cover portion covering a part of the wheel, and the two footrest panels and the two wheel cover portions are integrally formed. Therefore, the supporting framework is attractive in appearance and convenient to assemble and install, and the reinforcing grooves and the fixing plate installing grooves in the supporting framework can be covered.

In other embodiments, the two footrest panels 2 can also be independently mounted on the support frame 8, and the footrest panels 2 preferably cover only a part of the footrest area, so that when the rider steps on the footrest area of the vehicle body, the rider can directly contact the support frame to transfer the weight to the support frame, thereby improving the rider's experience.

In the embodiment, as shown in fig. 1, the vehicle body outer shell is mainly composed of a supporting framework 8 and a lower shell 7, and is used for decorating, covering and protecting internal parts. Thus, the vehicle body structure is simpler and the manufacturing cost is lower.

In the present embodiment, as shown in fig. 2, a sensor mounting groove for accommodating the sensor 4 is preferably provided on the support frame 8, two sensors 4 for detecting bearing stress are respectively provided on two pedal regions on the support frame 8, and the four sensors 4 are provided corresponding to the front and rear sole portions of the left and right feet of the rider, respectively.

The balance bike as shown in fig. 1 comprises a body and a wheel 1 mounted on the body, wherein the body comprises a support frame 8, a pedal panel 2 and a lower shell 7 as described above, the wheel 1 is mounted on two sides of the support frame 8, two pedal areas for two feet of a rider to pedal are arranged on the support frame 8, the pedal panel 2 covers all or part of the two pedal areas, a plurality of sensors 4 for sensing bearing pressure are arranged between the pedal panel 2 and the support frame 8, and the sensors 4 correspond to different parts of two soles of the feet of the rider respectively; the supporting framework 8 and the lower shell 7 are covered up and down to form a containing cavity for placing a controller and a battery inside the vehicle body.

In this embodiment, the vehicle body is an integral structure, that is, although the vehicle body is provided with two pedal areas, the two pedal areas are arranged on the same vehicle body platform, which is different from the swing car that is provided with two pedal platforms that can be twisted relatively.

Rider stands the balance car, and under the influence of human weight, the foil gage of sensor can produce the downward deformation of equidirectional, and its deformation degree is corresponding rather than bearing the atress, and the resistance of foil gage can take place corresponding change, according to the atress difference at the front and back sole position of two pedal regions, combines the automobile body to incline forward and backward and pitch angle change (with the help of detection such as gyroscope), can sense rider's driving intention, corresponding drive balance car moves ahead, moves back or turns. Of course, the bearing pressure change detected by the sensor can also be used for sensing whether a person stands on the pedal area of the vehicle body.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a support skeleton of balance car, is including the wheel connecting portion that is used for being connected with the wheel and the supporting part that is used for supplying the rider to trample and bear, its characterized in that, this support skeleton be an overall structure, this support skeleton has two platelike supporting parts that are used for forming two pedal regions respectively, is the intermediate junction portion that is used for connecting two platelike supporting parts between two platelike supporting parts, the both ends of this support skeleton are wheel connecting portion, be provided with the reinforcing groove that spans two platelike supporting parts between two wheel connecting portions.

2. The support frame of a balance vehicle of claim 1, wherein the support frame is of an integrally formed rigid plastic construction; the wheel connecting part is matched with and clamps the wheel shaft up and down through the wheel shaft fixing plate and the wheel shaft pressing plate.

3. The support frame of claim 2, wherein the support frame is provided with a mounting groove for mounting a wheel axle mounting plate and an anti-slip structure for preventing a rider from pedaling.

4. The balance car support frame of claim 1, wherein the reinforcement channel is located on the wheel axis.

5. The support frame of claim 1, wherein a rigid reinforcement member is filled in the reinforcement groove, and the reinforcement member comprises a metal pipe, a metal rod, a plastic pipe, a plastic rod or a wood rod.

6. The support frame of claim 5, wherein the reinforcement is a metal square tube.

7. The support frame of a balance car according to claim 1, wherein the depth of the reinforcing groove is not less than 3cm.

8. The support frame for a balance vehicle according to claim 1, wherein a rib groove structure formed by a plurality of ribs and reinforcing grooves distributed at intervals is provided between the wheel connecting portion and the reinforcing grooves.

9. The support frame for a balance vehicle according to claim 1, wherein the intermediate connecting portion has a width reduced with respect to the plate-like support portion, and the support frame is formed with wheel stoppers extending from both front and rear sides of the support frame near the wheel, so that the entire support frame has a wing-like shape of an X; a plurality of sensors for detecting bearing pressure are arranged in each pedal area, pedal panels for covering the sensors are fixedly arranged on the supporting framework, the pedal panels in the two pedal areas are connected into a whole, and the integrally formed pedal panel is arranged in the middle of the supporting framework and covers the reinforcing groove and the wheel connecting part; the pedal panel is made of flexible or elastic plastic and/or rubber and is made into a thin plate shape.

10. A balance vehicle comprising a support skeleton as claimed in any one of claims 1 to 9.

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