WO2021051842A1

WO2021051842A1 - Balance car having high safety

Info

Publication number: WO2021051842A1
Application number: PCT/CN2020/091067
Authority: WO
Inventors: 张敬敏
Original assignee: 山东光韵智能科技有限公司
Priority date: 2019-09-17
Filing date: 2020-05-19
Publication date: 2021-03-25
Also published as: CN110641595A

Abstract

A balance car, comprising a pedal (1) and a joystick (2) which are provided on a car body. The joystick (2) comprises a built-in anti-tilting fixing rod (2-1), the anti-tilting fixing rod (2-1) is built in the outer side face of the joystick (2), that is, the face opposite to a human body standing position, the top end of the anti-tilting fixing rod is hingedly fixed to the joystick (2), a position close to the top end is elastically fixed, and the anti-tilting fixing rod is locked in the joystick (2) by means of a locking device. A foot fixing plate (3) is provided on the pedal (1), the foot fixing plate (3) is provided in parallel above the instep after the human body stands on the pedal (1), side plates (3-1) are provided on the two sides, the foot fixing plate and the pedal (1) are elastically fixed by means of the side plates (3-1), and electromagnetic attraction devices are provided at positions, fixed to the side plates (3-1), of the pedal (1).

Description

A high-safety balance car

Technical field

The invention relates to the technical field of self-balancing vehicles, in particular to a balance vehicle that can relieve the impact when the balance vehicle suddenly stops and has a good protection ability for the human body.

Background technique

Electric balance car is also called somatosensory car, thinking car, camera car and so on. There are mainly two types of single wheel and double wheel on the market. Its operating principle is mainly based on a basic principle called "dynamic stability". The gyroscope and acceleration sensor inside the car body are used to detect the change of the car body's posture, and the servo control system is used to accurately drive the motor to make corresponding adjustments to maintain the balance of the system. Because of its beautiful appearance, good environmental performance, and easy handling, it has become a popular transportation tool for modern people. With the strengthening of people's awareness of environmental protection, the number of electric vehicles is increasing day by day. At the same time, scientists have finally developed a new two-wheel electric balance scooter after painstaking research. The two-wheel electric balance scooter is a new type of transportation. It is different from the front and rear arrangement of electric bicycles and motorcycles, but uses two wheels fixed side by side. The two-wheeled electric balance car is supported by two wheels, powered by a battery, driven by a brushless motor, and controlled by a single-chip microcomputer. The attitude sensor collects angular velocity and angle signals to coordinate and control the balance of the car body. The vehicle can be realized only by the change of the human center of gravity. Start, accelerate, decelerate, stop and other actions.

technical problem

From the above analysis, it can be seen that during the use of the balance car, the human body is basically controlled by the posture of the human body, and the human body and the car body are only supported by gravity, and there is no effective human body fixation or emergency protection measures. Therefore, it is difficult to guarantee safety, especially when balancing. When the speed of the car is too fast, it will cause the user to throw out the car body under the action of inertial force and cause damage when it encounters an emergency stop caused by an emergency or encounters a dangerous obstacle that is difficult to avoid.

In order to overcome the above-mentioned shortcomings of the prior art, the present invention aims to provide a balance car that can effectively protect the human body from impact damage when the car body stops or crashes at a high speed.

Technical solutions

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A high-safety balance car includes a pedal and a joystick provided on the vehicle body; the joystick is characterized in that the joystick includes a built-in anti-falling fixed rod; the anti-falling fixed rod is built into the outer side of the joystick, That is, the face opposite to the standing position of the human body, its top end is hingedly fixed with the joystick, and it is elastically fixed near the top end, and locked in the joystick by a locking device; the pedal is provided with a foot fixing plate, and the foot is fixed The board is arranged in parallel above the foot surface of the human body standing behind the pedal, and side boards are provided on both sides, which are elastically fixed to the pedal through the side board, and the pedal is provided with an electromagnetic adsorption device at the fixed position of the side board; When it is higher than the safe value, and the tilt angle to the running direction exceeds the safe angle, the unlocking device pops up the anti-falling fixed rod to support the joystick and the car body, and at the same time, the electromagnetic adsorption device is activated to magnetically adsorb the foot fixing plate to make it press The instep prevents the human body from being thrown forward.

Preferably: the bottom surface of the foot fixing plate is covered with a protective layer, and the protective layer is preferably a polypropylene fiber layer.

Preferably: the high-safety balance vehicle of the present invention further includes an airbag, which is built into the inner side of the joystick, that is, the side where the human body is standing; when the vehicle body speed is higher than a safe value, and the vehicle is inclined at an angle in the running direction When the safety angle is exceeded, the airbag pops out to support the human body.

Preferably, the anti-falling fixing rod is formed by hingedly connecting the top ends of two supporting rod bodies, and an elastic component is arranged between the two supporting rod bodies. Preferably, at least one side of each support rod body has a built-in elastic block, and the elastic block is simultaneously ejected when the anti-falling fixed rod is ejected, so as to increase the contact area of the anti-falling fixed rod with the ground. Preferably, the joystick is provided with fixed safety plates on both sides of the built-in part of the airbag, so as to increase the pressing area when the airbag is ejected.

Beneficial effect

Compared with the prior art, the present invention has the following advantages:

1. With the added anti-falling fixed rod, when the vehicle encounters an emergency stop and flips forward, it can timely support the body of the vehicle and increase the safety of the vehicle; on this basis, the foot surface is covered by the foot fixing plate, which is equivalent to The safety belt effect is added to the feet to prevent the human body from throwing forward and improve the safety of the human body during use.

2. By adding a protective layer of the foot fixing plate, the impact and bumps when the foot is in contact with the board surface are reduced, and the protective effect is improved.

3. The position design of the airbag can effectively fill the gap between the human body and the joystick to prevent the human body from being injured when the vehicle stops hitting the joystick. On this basis, the anti-falling fixing rod and the foot fixing plate can be used. Minimize the impact and collision damage to the human body.

4. Through the structural design of the anti-falling fixed rod, that is, the double-supporting rod structure, when the anti-falling fixed rod is ejected, the triangular support system formed by the two support rods and the ground makes the support effect more stable and the anti-impact effect is better; The design of the elastic block further increases the contact area between the pole body and the ground, further improves the structural stability, and has a certain anti-skid effect.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of Example 1;

Figure 2 is a schematic diagram of the front view of the anti-falling fixed rod when it pops up;

Figure 3 is a left structural schematic diagram of the foot fixing plate and the ejection position of the support rod body;

Figure 4 is a schematic view of the top view structure of the strut body elastic block;

FIG. 5 is a schematic diagram of the structure of Embodiment 2. FIG.

In the picture: 1. pedal; 2. joystick; 2-1, anti-falling fixed rod; 2-1-1, support rod body; 2-1-2, elastic block; 2-1-3, elastic part; 2- 2. Airbag; 2-3. Safety plate; 3. Foot fixing plate; 3-1. Side plate.

The best mode of the present invention

The structure and principle of the high-safety balance vehicle of the present invention will now be fully explained in conjunction with specific embodiments, so that those of ordinary skill in the art can fully understand and implement it.

Example 1

As shown in Figures 1 to 4, a high-safety balance car includes a pedal 1 and a joystick 2 arranged on the vehicle body; the joystick 2 includes a built-in anti-falling fixed rod 2-1; The anti-falling fixing rod 2-1 is built into the outer side of the joystick 2, that is, the face opposite to the standing position of the human body. Its top is hingedly fixed to the joystick 2, and is elastically fixed near the top, and is locked in the joystick 2 by a locking device The pedal 1 is provided with a foot fixing plate 3, the foot fixing plate 3 is arranged in parallel above the foot surface of the human body standing behind the pedal 1, with side plates 3-1 on both sides, through the side plates 3-1 It is elastically fixed to the pedal 1, and the pedal 1 is provided with an electromagnetic adsorption device at the fixed position of the side plate 3-1; wherein, when the vehicle speed is higher than the safe value and the tilt angle to the running direction exceeds the safe angle, the lock is released The tightening device pops up the anti-falling fixed rod 2-1 to support the joystick 2 and the car body. In order to achieve an ideal cushioning effect, the angle of the popped-up anti-falling fixed rod 2-1 should match the set safety angle, and it is better to be perpendicular to the ground after being ejected. At the same time, start the electromagnetic adsorption device, magnetically adsorb the foot fixing plate 3, so that it overcomes the elastic force and moves down to press the foot to prevent the human body from being thrown forward (after the danger is overcome, the electromagnetic adsorption device is manually closed, and the foot fixing plate 3 is under the elastic force To restore the original position, the above-mentioned press-covered foot surface can also be designed to a fixed height, for example, a stop device can be added to a position 1cm higher than the foot surface).

It can be seen from the above solution that the application of the balance car described in the present invention is as follows: when the vehicle speed exceeds the set safety value, and the inclination angle of the running direction exceeds the safety angle (that is, the vehicle is about to be in danger), the vehicle at this time is due to the angle Tilting will cause an emergency stop or vehicle overturning accident.

In order to cope with the above situation, the anti-falling fixing rod 2-1 described in this embodiment is used to pop up when in danger, and support the vehicle body by supporting the joystick 2 to prevent the vehicle from continuing to lean forward and prevent the vehicle from turning over; Under the action of electromagnetic adsorption, the fixed plate 3 overcomes the elastic force and moves downward to the foot surface, prevents the human body from being thrown forward under the action of the inertial force as the vehicle stops suddenly, and improves the safety of the human body. It needs to be specially pointed out that the foot fixing plate 3 is at a certain distance from the instep in the normal state. Only when the vehicle speed and inclination angle are judged to be dangerous, will it be absorbed by the electromagnetic adsorption device and moved down to the instep. In normal use, it will not Affect foot movement. In order to make the overall structure more comfortable for the human body to stand, the joystick 2 is arranged on the front side of the pedal 1.

In order to overcome the impact force when the human foot hits the foot fixing plate 3 under the action of inertial force, it is preferable that the bottom surface of the foot fixing plate 3 is covered with a protective layer, wherein the protective layer is a polypropylene fiber layer.

In order to make the anti-falling fixed rod 2-1 achieve a more ideal effect of supporting the car body, the anti-falling fixed rod 2-1 has been optimized as follows: ① The anti-falling fixed rod 2-1 is composed of two supporting rod bodies 2- 1-1 The top end is hinged, and an elastic component 2-1-3 is arranged between the two support rod bodies 2-1-1; ②. The three outer sides of each support rod body 2-1-1 are equipped with elastic blocks 2 -1-2, the elastic block 2-1-2 is ejected at the same time when the anti-falling fixed rod 2-1 is ejected, so as to increase the contact area of the anti-falling fixed rod 2-1 and the ground. At this time, the two supporting rod bodies are ejected The plane composed of 2-2-1 is preferably vertical to the ground.

Example 2

As shown in Figure 5, this embodiment is optimized as follows on the basis of embodiment 1. A high-safety balance car also includes an airbag 2-2, which is built into the joystick 2. The inner side is the side where the human body is standing; when the speed of the vehicle body is higher than the safe value and the angle of inclination to the running direction exceeds the safety angle, the airbag 2-2 will pop up to support the human body.

The airbag 2-2 popped up in this embodiment is directly placed between the human body and the joystick 2, and its main purpose is to cushion the impact of the inertial force on the human body during an emergency stop, and reduce the impact of the human body on the joystick 2, and improve Protection effect.

When the vehicle is impacted, the impact force received by the human body may deviate. At this time, the force of the human body on the airbag 2-2 will also be uneven. At this time, the airbag 2-2 will be deflected or even twisted. To provide safety protection, in order to prevent the above situation, this embodiment is optimized as follows: the joystick 2 is provided with fixed safety plates 2-3 on both sides of the built-in part of the airbag 2-2 to increase the ejection of the airbag 2-2. The pressing area at the same time prevents the airbag 2-2 from deflection caused by local compression.

Industrial applicability

1. The added anti-falling fixed rod prevents the human body from being thrown forward and improves the safety of the human body during use.

3. The position design of the airbag, together with the anti-falling fixed rod and the foot fixed plate, can minimize the impact and collision damage to the human body.

4. Through the structural design of the anti-falling fixed rod, the contact area between the support rod body and the ground is further increased, and the structural stability is further improved, and it has a certain anti-skid effect.

Sequence Listing Free Content

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Anyone familiar with the art, without departing from the technical principle and scope of the present invention, can use the methods disclosed above to make many possible changes and modifications to the technical scheme of the present invention, or modify it to be equivalent to equivalent changes. Examples. Therefore, any combination, modification or replacement of the technical features disclosed in the present invention based on the technical essence of the present invention without departing from the principle or solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

A high-safety balance vehicle, comprising a pedal (1) and a joystick (2) arranged on the vehicle body; characterized in that the joystick (2) includes a built-in anti-falling fixed rod (2-1) The anti-falling fixing rod (2-1) is built into the outer side of the joystick (2), that is, the face opposite to the standing position of the human body, and its top end is hinged and fixed with the joystick (2), and is elastically fixed near the top, and is locked The tightening device is locked in the joystick (2); the pedal (1) is provided with a foot fixing plate (3), and the foot fixing plate (3) is arranged parallel to the body standing behind the pedal (1) Above the foot surface, there are side plates (3-1) on both sides, which are elastically fixed by the side plates (3-1) and the pedals (1), and the pedals (1) are provided at the fixed positions with the side plates (3-1). There is an electromagnetic adsorption device; among them, when the vehicle body speed is higher than the safe value, and the tilt angle to the running direction exceeds the safe angle, the unlocking device pops up the anti-falling fixed rod (2-1) to support the joystick (2) and the vehicle At the same time, the electromagnetic adsorption device is activated to magnetically adsorb the foot fixing plate (3) so that it presses the foot surface to prevent the human body from being thrown forward.
A high-safety balance vehicle according to claim 1, characterized in that the bottom surface of the foot fixing plate (3) is covered with a protective layer.
A high-safety balance vehicle according to claim 2, wherein the protective layer is a polypropylene fiber layer.
A high-safety balance vehicle according to claim 1, characterized in that it further comprises an airbag (2-2), the airbag (2-2) is built into the inner side of the joystick (2), that is, the human body Standing side: When the speed of the car body is higher than the safe value and the tilt angle to the running direction exceeds the safe angle, the airbag (2-2) will pop up to support the human body.
A high-safety balance vehicle according to claim 4, characterized in that the anti-falling fixed rod (2-1) is formed by hingedly connecting the top ends of two supporting rod bodies (2-1-1), and Elastic components (2-1-3) are arranged between the two support rod bodies (2-1-1).
The high-safety balance vehicle according to claim 5, characterized in that, at least one side of each support rod body (2-1-1) has a built-in elastic block (2-1-2), and the elastic block (2-1-2) When the anti-falling fixed rod (2-1) pops out, it will pop out at the same time to increase the contact area of the anti-falling fixed rod (2-1) with the ground.
A high-safety balance vehicle according to any one of claims 4 to 6, characterized in that the joystick (2) is provided with fixed safety plates on both sides of the built-in airbag (2-2) (2-3) to increase the pressing area when the airbag (2-2) pops out.