CN111420386A

CN111420386A - Electric scooter for detecting bearing capacity of skateboard bridge to carry out drive control

Info

Publication number: CN111420386A
Application number: CN202010366009.XA
Authority: CN
Inventors: 陆海峰; 蔡炜桢
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-07-17

Abstract

The invention discloses an electric scooter for detecting the bearing capacity of a skateboard bridge to carry out drive control, which comprises: the bearing plate is provided with a control part; the wheel axle assembly comprises wheel axles and wheels driven by a motor, the wheels are arranged at two ends of each wheel axle respectively, and the walking state of each wheel is independently controllable; the mounting seat is connected between the bearing plate and the wheel axle; the induction part is arranged on the mounting seat and provided with a triggering surface, the triggering surface is in contact with the bearing plate or the wheel axle, the induction part obtains a pressure signal through the deformation of the triggering surface, and the induction part is electrically connected with the control part and the control part is electrically connected with the motor so as to control the walking state of the wheel according to the pressure signal. The invention makes the self structure of the bearing plate complete, and solves the problems of insufficient strength and easy fracture caused by slotting. The triggering surface of the sensing piece is contacted with the bearing plate or the wheel bridge, the force change on the bearing plate is sensed sensitively, and the walking state of the wheel bridge assembly is controlled accurately.

Description

Electric scooter for detecting bearing capacity of skateboard bridge to carry out drive control

Technical Field

The invention relates to the technical field of electric drive four-wheel vehicles, in particular to an electric scooter for detecting the bearing capacity of a skateboard bridge to carry out drive control.

Background

Along with the popularization of skateboard movement, the electric skateboard becomes a new type of sports device in skateboard movement, and the electric skateboard adopts the battery and the motor to solve the traditional pedal-driven mode for skateboards, so that a driver can experience the pleasure of the traditional skateboard in speed drop on level roads or on slopes. However, the conventional electric skateboard is generally accelerated or reduced by adopting wireless remote control, and is easily interfered by signals in occasions with a large number of signal sources.

At present, the electric skateboard who has few parts to rely on gravity induction control appears, its gravity inductor dress is on skateboard deck surface, need drill to skateboard deck itself, the original structure of skateboard deck self has been destroyed to this kind of mode, and then the intensity of skateboard deck has been destroyed, cause danger such as face fracture easily, and the inductor is established at skateboard deck surface, the limitation is great, be unfavorable for the inductor sensitively response detection skateboard bridge bearing capacity to carry out drive control's electric scooter's atress condition, thereby be unfavorable for the control to detect the skateboard bridge bearing capacity and carry out drive control's electric scooter walking.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an electric scooter for detecting the bearing capacity of a skateboard bridge to carry out drive control, which aims to solve the problems that the structure of a skateboard is damaged and easy to break and the sensor is insensitive because a sensor of the existing scooter is arranged on the surface of the skateboard.

The electric scooter for detecting the bearing capacity of the skateboard bridge to carry out drive control according to the embodiment of the invention comprises: the bearing plate is provided with a control piece; the wheel axle assembly comprises wheel axles and wheels driven by a motor, the wheels are arranged at two ends of each wheel axle, and the walking state of each wheel is independently controllable; the mounting seat is connected between the bearing plate and the wheel axle; the response piece, the response piece is established on the mount pad, the response piece has the trigger face, the trigger face with the bearing plate contact or with the wheel bridge contact, the response piece passes through the deflection of trigger face obtains pressure signal, the response piece with the control electricity is connected, the control with the motor electricity is connected with the basis pressure signal control the walking state of wheel.

According to the electric scooter for detecting the bearing capacity of the skateboard bridge to carry out drive control, the induction part is arranged on the mounting seat between the bearing plate and the wheel bridge assembly, so that the bearing plate of the electric scooter for detecting the bearing capacity of the skateboard bridge to carry out drive control is complete in structure, and the problems of insufficient strength and easiness in breakage of the bearing plate due to slotting are solved. The triggering surface of the sensing part is contacted with the bearing plate or the wheel bridge, and the force change on the bearing plate can be sensitively sensed, so that the walking state of the wheel bridge assembly can be more accurately controlled.

In some embodiments, the wheel axle assemblies are at least two and are arranged at intervals in the front-rear direction, the wheel axle of each wheel axle assembly is connected to the bearing plate through the mounting seat, and the sensing members are arranged on a plurality of mounting seats to control the walking acceleration of the wheel through the pressure changes of the sensing members.

In some embodiments, the sensing element comprises: the base is arranged at the top of the mounting seat, and a groove is formed in the top surface of the base; the first detection piece is matched in the groove, and the top surface of the first detection piece forms the trigger surface and is attached to the bearing plate.

Optionally, a wire slot communicated with the groove is formed in the side portion of the base, and the first detection piece is matched with a wire electrically connected with the control piece in the wire slot.

In some embodiments, the sensing element comprises: one end of the connecting shaft is arranged on the mounting seat, and the other end of the connecting shaft penetrates through the wheel axle; the second detects the piece, the second detects the piece suit and establishes on the connecting axle, the at least partial surface of second detects the piece constitutes trigger face and with the wheel axle contacts.

Optionally, the connecting axle is locking bolt, the response piece still includes: and the locking piece is in threaded fit with the locking bolt so that the second detection piece is tightly attached to the wheel axle.

Optionally, a connecting portion is arranged on the wheel axle, an acute angle is formed between the connecting portion and the horizontal plane, a through hole matched with the connecting shaft is formed in the connecting portion, and the second detection piece is tightly attached to the connecting portion.

Optionally, the wheel axle assembly is two and along the spaced apart arrangement of fore-and-aft direction, every the wheel axle assembly the wheel axle all passes through the mount pad is connected on the bearing plate, every all be equipped with on the wheel axle connecting portion, two connecting portion extend the setting towards the direction of keeping away from each other in the upward direction, two one side of keeping away from each other of connecting portion is equipped with the second detects the piece.

In some embodiments, the motor and the wheel of the axle assembly are an integrated in-wheel motor.

In some embodiments, the electric scooter for driving and controlling by detecting the loading capacity of the skateboard bridge further comprises: a battery electrically connected to the control, the battery and the motor; wherein, the bearing plate includes: the battery and the control piece are both positioned in the accommodating groove; the cover plate is arranged on the plate body to seal and cover the accommodating groove, and the cover plate is an anti-skid cover plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an exploded structure of an electric scooter driven and controlled by detecting the bearing capacity of a skateboard bridge according to an embodiment of the present invention;

FIG. 2 is a first schematic view of an assembly of an induction member with a wheel axle and a mounting seat according to an embodiment of the present invention;

FIG. 3 is a second schematic view of an assembly of the sensing element, the wheel axle and the mounting seat according to the first embodiment of the present invention;

FIG. 4 is a schematic view of an assembly of the sensing element, the wheel axle and the mounting seat according to the second embodiment of the present invention;

fig. 5 is a schematic perspective view of a connecting shaft according to an embodiment of the invention.

Reference numerals:

100. the electric scooter is used for detecting the bearing capacity of the scooter bridge to carry out drive control;

1. a bearing plate;

11. a plate body; 111. accommodating grooves; 12. a cover plate; 13. a battery; 14. a control member; 15. a fastener;

2. a wheel axle assembly;

21. a wheel axle; 22. a wheel; 24. a connecting portion; 241. a through hole; 25. a mounting seat; 251. a second mounting through hole;

3. a sensing member;

31. a base; 311. a groove; 312. a wire slot; 313. a first mounting through hole; 32. a first detecting member; 321. a trigger piece; 322. a pressure receiving device; 33. customizing a sensor; 331. a trigger; 332. a base body; 34. a connecting shaft; 35. a second detecting member; 36. and a locking member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An electric scooter 100 for detecting the loading force of a skateboard bridge to perform driving control according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1, an electric scooter 100 for driving control by detecting the bearing capacity of a skateboard bridge according to an embodiment of the present invention includes: bearing plate 1, wheel axle assembly 2, mount pad 25, response piece 3.

The bearing plate 1 is provided with a control part 14, the wheel axle assemblies 2 respectively comprise wheel axles 21 and wheels 22 driven by a motor, the two ends of each wheel axle 21 are respectively provided with the wheels 22, and the walking state of each wheel 22 is independently controllable. That is, the wheel axle assembly 2 rotates on the wheel axle 21 via the wheels 22, so as to drive the electric scooter 100 for driving and controlling by detecting the bearing capacity of the scooter axle to move forward.

The mounting seat 25 is connected between the bearing plate 1 and the wheel axle 21, that is, the wheel axle assembly 2 is mounted on the bearing plate 1 through the mounting seat 25. The sensing part 3 is arranged on the mounting seat 25, the sensing part 3 is provided with a triggering surface (not shown), the triggering surface is in contact with the bearing plate 1 or the wheel bridge 21, the sensing part 3 obtains a pressure signal through the deformation of the triggering surface, the sensing part 3 is connected with the control part 14, and the control part 14 is electrically connected with the motor to control the walking state of the wheel 22 according to the pressure signal. It is understood that the sensing element 3 can be arranged between the bearing plate 1 and the mounting seat 25, and also between the mounting seat 25 and the wheel axle 21, and controls the running state of the wheel 22 through the pressure deformation of the triggering surface.

Specifically, as shown in fig. 2 and 3, when the sensing member 3 is disposed between the bearing plate 1 and the mounting seat 25, the triggering surface contacts with the bearing plate 1, and after an operator stands on the bearing plate 1, the force on the bearing plate 1 finally acts on the mounting seat 25, which easily causes the triggering surface of the sensing member 3 to be deformed by pressure, so that a corresponding pressure signal is easily obtained, and the wheel 22 can be controlled to walk according to the pressure signal. When the center of gravity of the operator on the bearing plate 1 is shifted, the deformation of the triggering surface is changed, and the walking state of the wheel 22 can be controlled, for example, when the operator is far away from the mounting seat 25 on the bearing plate 1, the stress on the mounting seat 25 is small, the deformation of the triggering surface is small, and the acceleration or deceleration of the wheel 22 can be regulated; alternatively, when the operator is close to the mount 25 on the bearing plate 1, the mount 25 receives a large force, and the amount of deformation of the trigger surface is large, and the acceleration or deceleration of the wheel 22 can be specified.

For the same reason, as shown in fig. 4, when the sensing member 3 is disposed between the mounting seat 25 and the wheel axle 21, the triggering surface contacts with the wheel axle 21, at this time, the force on the bearing plate 1 finally acts on the wheel axle 21 through the mounting seat 25, and the triggering surface deforms by the acting force on the mounting seat 25, thereby controlling the wheel 22 to travel. When the center of gravity of the operator on the bearing plate 1 is shifted, the deformation of the triggering surface is changed, and the walking state of the wheel 22 can be controlled, for example, when the operator is far away from the mounting seat 25 on the bearing plate 1, the acting force applied to the wheel bridge 21 is small, the deformation of the triggering surface is small, and the acceleration or deceleration of the wheel 22 can be regulated; alternatively, when the operator is close to the mounting seat 25 on the bearing plate 1, the wheel bridge 21 receives a large force, and the amount of deformation of the trigger surface is large, and at this time, the acceleration or deceleration of the wheel 22 can be regulated.

It should be noted that, because the sensing member 3 is arranged on the mounting base 25, it is not necessary to open a slot on the bearing plate 1 for placing the sensing member 3, and it is also not necessary to drill a hole for mounting, so that the structure of the bearing plate 1 is not damaged, the structural strength of the whole is good, and the problem that the bearing plate 1 is easy to break due to the opening of the slot is solved. Secondly, mount pad 25 is as only load-carrying member between bearing plate 1 and wheel axle assembly 2, response piece 3 is established on mount pad 25, the operator body can both transmit the effort to mount pad 25 well in the any position department of bearing plate 1, and finally act on response piece 3, the trigger surface obtains more obvious deflection easily after receiving the effect of bearing plate 1, it is more sensitive just also to make response piece 3 to the response of effort on the bearing plate 1, thereby can receive the atress change that detects the electric scooter 100 of scooter axle bearing capacity and carry out drive control more accurately, in order to control the walking state of wheel 22 better.

According to the electric scooter 100 for detecting the bearing capacity of the skateboard bridge to perform the driving control, the induction part 3 is arranged on the mounting seat 25 between the bearing plate 1 and the wheel bridge assembly 2, so that the bearing plate 1 of the electric scooter 100 for detecting the bearing capacity of the skateboard bridge to perform the driving control has a complete structure, and the problems of insufficient strength and easy breakage of the bearing plate 1 caused by slotting are solved. The triggering surface of the sensing part 3 is contacted with the bearing plate 1 or the wheel bridge 21, and the force change on the bearing plate 1 can be sensitively sensed, so that the walking state of the wheel bridge assembly 2 can be more accurately controlled.

In some embodiments, as shown in fig. 1, the wheel axle assemblies 2 are at least two and are arranged at intervals in the front-rear direction, the wheel axle 21 of each wheel axle assembly 2 is connected to the bearing plate 1 through a mounting seat 25, and the plurality of mounting seats 25 are provided with the sensing members 3 so as to control the walking acceleration of the wheel 22 through the pressure changes of the plurality of sensing members 3. That is, the traveling state of the wheel 22 can be controlled better by the plurality of wheel axle assemblies 2 and the sensors 3. Specifically, two wheel axle assemblies 2 may be provided, which are respectively disposed at the front end and the rear end of the bearing plate 1, and when an operator stands on the bearing plate 1 and the center of gravity of the operator shifts forward, the sensing member 3 at the front end of the bearing plate 1 is subjected to pressure, and a pressure increase difference on the trigger surface is analyzed, and it is determined that the pressure increase is the main control end, for example, if the pressure applied to the front end of the bearing plate 1 is large, it is determined that the wheel 22 is in an acceleration state; if the pressure applied to the rear end of the bearing plate 1 is large, the wheel 22 is judged to be in a deceleration or braking state. In this way, the acceleration and deceleration of the wheel 22 is determined by the degree of gravity center shift of the operator, i.e., the degree of deformation of the trigger surface, which is a control method with lower cost and more convenient control.

Of course, in other examples, the number of the wheel axle assemblies 2 may be three or more, so that the gravity center shift of the operator can be more specifically corresponding to the walking state of the wheels 22, and the description thereof is omitted here.

In some embodiments, as shown in fig. 2, the sensing element 3 comprises: a base 31 and a first detection member 32, wherein the base 31 is arranged on the top of the mounting seat 25, and a groove 311 is formed on the top surface of the base 31; the first detecting member 32 is fitted in the recess 311, and the top surface of the first detecting member 32 constitutes a trigger surface and is attached to the bearing plate 1. It can be understood that the first detecting member 32 can be detachably mounted by being disposed in the recess 311 of the base 31, which is beneficial to replacing the damaged first detecting member 32 periodically or repairing, thereby saving cost and prolonging service life.

Specifically, the first detecting member 32 may be a pressure sensor including a pressure receiving means 322 and a trigger piece 321, the trigger surface being formed on the trigger piece 321, the trigger piece 321 being in contact with the bearing plate 1 so that the pressure sensor can function as a speed control switch. When the trigger piece 321 deforms, the pressure receiving device 322 receives the signal of the deformation degree of the trigger piece 321, converts the pressure signal into an electrical signal, and transmits the electrical signal through a conducting wire, so as to control the acceleration, deceleration and braking of the wheel 22.

Alternatively, as shown in fig. 2, the recess 311 is a rectangular groove formed in the center of the base 31, and the length and width of the rectangular groove are the same as the outer length and width dimensions of the pressure receiving device 322 of the pressure sensor, so that the pressure receiving device 322 can be stably fixed to the base 31.

Optionally, as shown in fig. 2, a wire slot 312 communicating with the groove 311 is disposed on a side portion of the base 31, a wire electrically connected to the first detecting member 32 and the control member 14 is fitted in the wire slot 312, and the wire slot 312 facilitates the wiring of the first detecting member 32, so that the overall structure looks neater and more beautiful.

Alternatively, as shown in fig. 2, the wireway 312 is semi-cylindrical so that the wires can fit well within the semi-cylindrical wireway 312. Of course, the slot 312 may have other shapes, such as a long strip shape or a triangular slot shape, and will not be described herein.

In other embodiments, as shown in fig. 3, the sensing element 3 can be an integrally formed customized sensor 33, for example, the customized sensor 33 includes a base 332 and a trigger 331. One end of the trigger 331 is used as a trigger surface and is closely attached to the bottom of the bearing plate 1, when the gravity center of an operator is kept at the middle position of the bearing plate 1, the sensors at the front end and the rear end are stressed in a balanced manner, and when the gravity center of the operator is changed, the pressure of the trigger 331 on the seat body 332 is changed, so that the wheels 22 are accelerated or decelerated.

In some embodiments, as shown in fig. 4, the sensing element 3 comprises: a connecting shaft 34 and a second detecting piece 35, wherein one end of the connecting shaft 34 is arranged on the mounting seat 25, and the other end of the connecting shaft passes through the wheel axle 21; the second detecting member 35 is disposed on the connecting shaft 34, and at least a part of the surface of the second detecting member 35 forms a triggering surface and contacts with the wheel axle 21. That is, the mounting seat 25 receives the acting force of the bearing plate 1 and is firstly transmitted to the connecting shaft 34, then the connecting shaft 34 transmits the acting force to the second detecting member 35, and the triggering surface of the second detecting member 35 is contacted with the wheel axle 21 to deform, so as to control the acceleration, deceleration or braking of the wheel 22. For example, when the connecting shaft 34 is subjected to a large pressure, the deformation of the triggering surface of the second detecting member 35 is reduced, and the acceleration or deceleration of the wheel 22 can be controlled; when the connecting shaft 34 is subjected to a small pressure, the deformation amount of the triggering surface of the second detecting member 35 is increased, and the deceleration or acceleration of the wheel 22 can be controlled.

Optionally, the second detecting element 35 is a circular mechanical sensor, and a middle circular hole of the mechanical sensor penetrates the connecting shaft 34, so that a stressed end (i.e., a triggering surface) of the mechanical sensor contacts with one surface of the wheel axle 21.

Optionally, as shown in fig. 5, the connecting shaft 34 is a locking bolt, and the sensing element 3 further includes: and a locking member 36, the locking member 36 being screw-fitted on the locking bolt to make the second detecting member 35 abut on the wheel axle 21. For example, the locking member 36 is a nut, and the nut and the locking bolt cooperate with each other to fix the position of the second detecting member 35.

Optionally, as shown in fig. 4, a connecting portion 24 is disposed on the wheel axle 21, an acute angle is formed between the connecting portion 24 and a horizontal plane, a through hole 241 matched with the connecting shaft 34 is disposed on the connecting portion 24, and the second detecting member 35 is tightly attached to the connecting portion 24. That is to say, the connecting shaft 34 is inserted into the connecting portion 24, when an operator stands on the bearing plate 1, the center of gravity of the operator is forward or backward, the pressure on the bearing plate 1 is transmitted to the connecting portion 24 through the mounting seat 25 along a certain angle direction, and then the pressure is transmitted to the annular mechanical sensor and then the pressure signal is received, the pressure signal is converted into an electrical signal and transmitted through a wire, and further the acceleration, deceleration and braking of the wheel 22 are controlled.

It should be noted that the circular mechanical sensor is used as a driving control switch, the mounting seat 25 is used for supporting the whole bearing plate 1, and the mechanical sensor is mounted on the connecting portion 24 and can accurately receive the stress change of the bearing plate 1. When the wheel axle 21 is subjected to a pressure increment, the force is transmitted to the mechanical sensor through the connecting shaft 34, so that the acceleration and deceleration of the wheel 22 can be better controlled, and the acceleration and deceleration of the electric scooter 100 which is driven and controlled by detecting the bearing force of the scooter axle can be controlled by changing the change of the gravity center of an operator.

Optionally, an acute angle of 45 degrees is formed between the connecting portion 24 and the horizontal plane, so that the pressure on the bearing plate 1 is transmitted to the connecting portion 24 through the mounting seat 25 along the 45-degree angle direction, and according to the stress analysis, the pressure on the mechanical sensor is larger, and the wheel 22 can be controlled more sensitively.

Alternatively, as shown in fig. 1 and 4, the two wheel axle assemblies 2 are arranged at intervals in the front-rear direction, the wheel axle 21 of each wheel axle assembly 2 is connected to the bearing plate 1 through a mounting seat 25, a connecting portion 24 is provided on each wheel axle 21, the two connecting portions 24 extend in the upward direction toward the direction away from each other, and one sides of the two connecting portions 24 away from each other are provided with second detecting members 35.

In some embodiments, the wheel axle assembly 2 is a wheel hub motor with a motor and a wheel 22 integrated into a whole, and by adopting the mode, the wheel axle assembly 2 has the advantages of strong integrity, convenient installation and simple control.

In some embodiments, as shown in fig. 1, the electric scooter 100 for driving and controlling by detecting the loading force of the skateboard bridge further comprises: the battery 13, the battery 13 and the control member 14, the battery 13 and the motor are electrically connected. The battery 13 may be a battery pack, and is formed by connecting in series or in parallel through a wire, the positive and negative wires led out from the two ends of the battery 13 are connected with the control part 14, and the control part 14 is a controller, and is used for receiving and analyzing the pressure signal of the sensing part 3, and controlling the motor of the wheel axle assembly 2 after analysis, so as to control the acceleration, deceleration or braking of the wheel 22.

As shown in fig. 1, the load bearing plate 1 includes: the battery protection plate comprises a plate body 11 and a cover plate 12, wherein an accommodating groove 111 is formed in the plate body 11, and a battery 13 and a control piece 14 are both positioned in the accommodating groove 111; the cover plate 12 is provided on the plate body 11 to cover the receiving groove 111. Wherein the maximum height of the battery 13 and the control member 14 is smaller than the depth of the receiving groove 111 to facilitate the installation of the cover plate 12.

Optionally, the cover 12 is a non-slip cover, for example, sandpaper is provided on the cover 12 to prevent an operator from slipping while standing on the cover 12. Of course, the manner of preventing the cover plate 12 from slipping is not limited to this, and for example, the cover plate 12 may be provided with anti-slipping ribs or protrusions, which also serve as anti-slipping means.

In some embodiments, as shown in fig. 1, the electric scooter 100 for driving and controlling by detecting the loading force of the skateboard bridge further comprises: the fastener 15, the fastener 15 is connected and fixed through the plate body 11, the base 31 and the mounting seat 25. Specifically, four first mounting through holes 313 are formed around the base 31, a second mounting through hole 251 is formed in the mounting base 25 corresponding to each first mounting through hole 313, and four fasteners 15 are correspondingly fitted in the first mounting through holes 313 and the second mounting through holes 251.

In particular, the fastening means 15 are screws, which are simple to mount and reliable in connection.

An embodiment of an electric scooter 100 for detecting the loading force of a skateboard bridge for driving control according to the present invention will be described with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 3, an electric scooter 100 for driving and controlling by detecting the bearing capacity of a skateboard bridge comprises: bearing plate 1, wheel axle assembly 2, mount pad 25, response piece 3.

The bearing plate 1 comprises a plate body 11 and a cover plate 12, wherein the plate body 11 is provided with an accommodating groove 111, and the battery 13 and the control part 14 are both positioned in the accommodating groove 111; the cover plate 12 is provided on the plate body 11 to cover the receiving groove 111.

The two wheel axle assemblies 2 are arranged at intervals along the front-back direction, and the wheel axle 21 of each wheel axle assembly 2 is connected to the bearing plate 1 through the mounting seat 25. The wheel axle assembly 2 comprises a wheel axle 21 and wheels 22 driven by a motor, the wheels 22 are respectively arranged at two ends of the wheel axle 21, the walking state of each wheel 22 is independently controllable, and the motor and the wheels 22 are integrated into a whole. The wheel axle assembly 2 is provided with at least one wheel hub motor, and a central shaft of the wheel hub motor is matched with the wheel axle 21 and locked by a nut. The bearing plate 1, the wheel axle assembly 2 and the induction part 3 are fastened through a screw and nut suite.

Wherein, the induction part 3 comprises two structures;

in one structure, as shown in fig. 2, the sensing member 3 includes a base 31 and a first detecting member 32, the first detecting member 32 is a pressure sensor, the top of the mounting base 25 is provided with four second mounting through holes 251, four first mounting through holes 313 having the same size and the same position as the second mounting through holes 251 are arranged around the base 31, and a fastening member 15 is a screw and penetrates through the plate body 11, the base 31 and the wheel axle 21 to be connected and fixed. The base 31 is provided with a rectangular groove 311 in the center, the length and width of the rectangular groove 311 are the same as the length and width of the outside of the pressure receiving device 322 of the pressure sensor, and the base 31 is provided with a semi-cylindrical wire casing 312 for leading the lead of the pressure sensor out of the rectangular groove 311.

The pressure sensor comprises a pressure receiving device 322 and a trigger piece 321, when the trigger piece 321 deforms, the pressure receiving device 322 receives a signal of the deformation degree of the trigger piece 321, converts the pressure signal into an electric signal and transmits the electric signal through a lead, and the control part 14 receives the signal and controls the hub motor to accelerate, decelerate and brake.

It should be noted that, when the sensing element 3 with such a structure is assembled, and the electric scooter 100 which integrally detects the bearing capacity of the skateboard bridge for driving control is installed, the fastening element 15 is only partially threaded, and the rest is a smooth cylindrical surface, and the length of the smooth cylindrical surface of the fastening element 15 is equal to the thickness of the base 31, the thickness of the trigger piece 321, the thickness of the connection plane of the mounting seat 25, and the thickness of the board body 11 plus corresponding tolerance, so that the design ensures that the pressure sensor can be in an initial state, i.e. an uncompressed state when the fastening element 15 is locked to the bottom.

In the sensing member 3 with such a structure, the base 31 and the pressure sensor are used as a speed control switch, the trigger piece 321 of the pressure sensor is in contact with the bearing plate 1, when the center of an operator shifts forwards after the operator stands on the bearing plate 1, the trigger piece 321 on the front wheel axle 21 is subjected to pressure, the control member 14 analyzes the pressure increment difference of the pressure receiving devices 322 at the front and the rear of the sliding plate, and determines that the pressure increment is a main control end, for example, the pressure received by the front end of the sliding plate is large, the control member 14 determines acceleration, and if the pressure received by the rear end of the sliding plate is large, the control member determines deceleration and braking. The acceleration and deceleration force determines the human body gravity center shift degree, namely the deformation degree of the pressure sensor.

In another structure, as shown in fig. 3, the sensing element 3 is a customized sensor 33, the customized sensor 33 includes a base body 332 and a trigger 331, four second mounting through holes 251 are provided at the top of the mounting base 25, four first mounting through holes 313 having the same size and the same position as the second mounting through holes 251 are provided around the base body 332, and the fastening element 15 is a screw and passes through the plate body 11, the base 31 and the wheel axle 21 to be connected and fixed. The trigger 331 and the base 332 of the customized sensor 33 are integrated, and the customized sensor 33 is integrated when being processed, wherein the base 332 serves as a fixed base, and the through holes on the periphery of the fixed base can fix the fixed base with the mounting base 25; the trigger 331 functions as a trigger end of the signal, and when a pressure signal is transmitted to the trigger 331, the pressure signal can be converted into an electrical signal and transmitted to the control member 14.

It should be noted that, when the sensing element 3 with such a structure is assembled, and the electric scooter 100 which integrally detects the bearing capacity of the skateboard bridge for driving control is installed, only part of the screw thread of the fastening element 15 is provided, and the rest part is a smooth cylindrical surface, and the length of the smooth cylindrical surface of the bolt is the thickness of the customized sensor 33 plus the thickness of the connection plane of the mounting seat 25 plus the thickness of the board body 11 plus a corresponding tolerance, such design ensures that the customized sensor 33 can be in an initial state, i.e. an uncompressed state when the fastening element 15 is locked to the bottom.

In the sensing member 3 with such a structure, the trigger 331 is closely attached to the bottom of the bearing plate 1, when the center of gravity of the operator is kept in the middle of the sliding plate, the sensors at the front and rear ends are stressed in a balanced manner, when the center of gravity of the operator changes, the pressure of the trigger 331 on the seat body 332 changes, the control member 14 is prompted to make an acceleration or deceleration command,

the present embodiment relates to two different structures and installation manners of the sensing element 3, which are similar in principle but different in specific installation implementation manners.

Example two

Referring to fig. 1 and 4, a detailed structure and composition of an electric scooter 100 for driving and controlling by detecting a load bearing capacity of a skateboard bridge according to a second embodiment of the present invention is described, wherein the structure of the electric scooter 100 for driving and controlling by detecting a load bearing capacity of a skateboard bridge according to the second embodiment is substantially the same as the structure of the electric scooter 100 for driving and controlling by detecting a load bearing capacity of a skateboard bridge according to the first embodiment.

What is different, in the second embodiment, the sensing element 3 includes a connecting shaft 34, a second detecting element 35, and a locking element 36, wherein the second detecting element 35 is a circular mechanical sensor, the connecting shaft 34 is a locking bolt, and the locking element 36 is a nut.

The locking bolt penetrates through the mounting seat 25 and the through hole 241 of the connecting part 24, the middle round hole of the circular mechanical sensor penetrates into the locking bolt, the stress end of the circular mechanical sensor is in contact with one surface of the upper surface of the connecting part 24, and then the locking part 36 is locked on the connecting shaft 34. When an operator stands on the bearing plate 1, forward and backward pressure of the operator is transmitted to the connecting part 24 through the mounting seat 25 along the 45-degree angle direction, the pressure is transmitted to the annular mechanical sensor and then received, the pressure signal is converted into an electric signal and transmitted through a wire, and the control part 14 receives the signal and controls the hub motor to accelerate, decelerate and brake.

In the second embodiment, the circular mechanical sensor mounted on the wheel axle 21 is used as a driving control switch, the bearing plate 1 is used for supporting the whole sliding plate, and the circular mechanical sensor is mounted on the connecting portion 24, so that the stress change of the sliding plate can be received more accurately. When the wheel axle 21 is subjected to a pressure increase, the force is transmitted to the mechanical sensor through the connecting shaft 34, so that the acceleration and deceleration of the skateboard can be controlled better, and the acceleration and deceleration of the skateboard can be controlled by changing the change of the gravity center of an operator.

In summary, the present invention is directed to a novel voltage-controlled electric driving board for accelerating, decelerating or braking a four-wheel skateboard by an operator only through the center of gravity of the human body, which is provided to separate an electric skateboard from an existing wireless remote control.

The invention designs a novel voltage-controlled electric driving plate, an operator only prompts the four-wheel sliding plate to accelerate, decelerate or brake through the gravity center of the human body, the hands of the operator are liberated to a certain extent, and a sensor is arranged between a wheel bridge 21 and a bearing plate 1 of the sliding plate or arranged on the wheel bridge 21, so that the original self structure of the sliding plate is maintained, and the performances of changing the strength and the like of the sliding plate are avoided.

Other configurations and operations of the electric scooter 100 for driving control by detecting the loading force of the skateboard bridge according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric scooter for detecting the bearing capacity of a skateboard bridge to carry out drive control is characterized by comprising:

the bearing plate is provided with a control piece;

the wheel axle assembly comprises wheel axles and wheels driven by a motor, the wheels are arranged at two ends of each wheel axle, and the walking state of each wheel is independently controllable;

the mounting seat is connected between the bearing plate and the wheel axle;

the response piece, the response piece is established on the mount pad, the response piece has the trigger face, the trigger face with the bearing plate contact or with the wheel bridge contact, the response piece passes through the deflection of trigger face obtains pressure signal, the response piece with the control electricity is connected, the control with the motor electricity is connected with the basis pressure signal control the walking state of wheel.

2. The electric scooter for driving control by detecting the bearing capacity of the skateboard bridge as claimed in claim 1, wherein the wheel bridge assemblies are at least two and spaced apart from each other in the front-rear direction, the wheel bridge of each wheel bridge assembly is connected to the bearing plate through the mounting seat, and the sensors are disposed on the plurality of mounting seats to control the walking acceleration of the wheels through the pressure variation of the plurality of sensors.

3. The electric scooter of claim 1, wherein the sensing member comprises:

the base is arranged at the top of the mounting seat, and a groove is formed in the top surface of the base;

the first detection piece is matched in the groove, and the top surface of the first detection piece forms the trigger surface and is attached to the bearing plate.

4. The electric scooter of claim 3, wherein a slot is formed on a side of the base for communicating with the recess, and a wire electrically connecting the first detecting member and the control member is fitted in the slot.

5. The electric scooter of claim 1, wherein the sensing member comprises:

one end of the connecting shaft is arranged on the mounting seat, and the other end of the connecting shaft penetrates through the wheel axle;

the second detects the piece, the second detects the piece suit and establishes on the connecting axle, the at least partial surface of second detects the piece constitutes trigger face and with the wheel axle contacts.

6. The electric scooter of claim 5, wherein the connecting shaft is a locking bolt, and the sensing member further comprises: and the locking piece is in threaded fit with the locking bolt so that the second detection piece is tightly attached to the wheel axle.

7. The electric scooter of claim 5, wherein the wheel axle is provided with a connecting portion, the connecting portion forms an acute angle with a horizontal plane, the connecting portion is provided with a through hole matching with the connecting shaft, and the second detecting member is tightly attached to the connecting portion.

8. The electric scooter of claim 7, wherein the two wheel axle assemblies are spaced apart from each other in a front-rear direction, the wheel axle of each wheel axle assembly is connected to the bearing plate via the mounting seat, the connecting portion is provided on each wheel axle, the two connecting portions extend in an upward direction toward a direction away from each other, and the second detecting member is provided on a side of the two connecting portions away from each other.

9. The electric scooter for driving control by detecting the axle-bearing capacity of the skateboard axle according to claim 1, wherein said motor and said wheel are integrated into a wheel hub motor in said wheel axle assembly.

10. The electric scooter of any one of claims 1-9, further comprising: a battery electrically connected to the control, the battery and the motor; wherein, the bearing plate includes:

the battery and the control piece are both positioned in the accommodating groove;

the cover plate is arranged on the plate body to seal and cover the accommodating groove, and the cover plate is an anti-skid cover plate.