Safe driving auxiliary device for electric bicycle

Abstract

The utility model discloses an auxiliary device for safe driving of an electric bicycle, which comprises two motor fixing frames arranged at the bottom of a pedal of the electric bicycle and two support rod mounting frames respectively arranged at the side part of the pedal, and the motor fixing frames at the bottom of the pedal and the support rod mounting frames at the side part of the pedal are correspondingly arranged; a motor and a first gear are arranged in the motor fixing frame, a second gear is arranged in the supporting rod mounting frame, a mounting shaft of the second gear is rotationally mounted on the supporting rod mounting frame and fixedly connected with the supporting rod, the supporting rod is located outside the supporting rod mounting frame, and an auxiliary wheel is connected to the end, not mounted with the second gear, of the supporting rod. The second gear is meshed with the first gear, and the motor drives the supporting rod to rotate through the first gear and the second gear. When the electric bicycle inclines during running, the auxiliary device can be opened automatically or manually, and the electric bicycle is supported from the two sides of the bicycle body through the supporting rods and the auxiliary wheels.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric bicycles, and in particular relates to a safe driving auxiliary device for electric bicycles. Background Art

[0002] Most electric bicycles are two-wheeled, large in size, and fast in speed. For beginners, it is easy to fall, just like riding a bicycle for the first time. When riding an electric bicycle on slippery roads in snowy or rainy days, it is also more likely to cause the body of the bicycle to tip over due to side slipping. The safety performance is poor, and a safe driving assistance device is needed to improve the safety of electric bicycles when riding. Utility Model Content

[0003] The utility model provides an electric bicycle safety driving auxiliary device, which can be opened manually or automatically and is used for auxiliary support when the vehicle body is tilted.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A safe driving assistance device for an electric bicycle comprises two motor fixing frames installed at the bottom of a pedal of the electric bicycle and two support rod mounting frames respectively installed at the sides of the pedal, wherein the motor fixing frame at the bottom of the pedal and the support rod mounting frame at the sides of the pedal are installed correspondingly; a motor and a first gear are arranged in the motor fixing frame, a second gear is arranged in the support rod mounting frame, a mounting shaft is rotatably connected to the support rod mounting frame, one end of the mounting shaft located in the support rod mounting frame is fixedly connected to the second gear; the other end is located outside the support rod mounting frame and is fixedly connected to the support rod; the support rod is located outside the support rod mounting frame, and an auxiliary wheel is connected to one end of the support rod away from the mounting shaft; the second gear is meshed with the first gear, and the starting motor drives the support rod to rotate via the first gear and the second gear.

[0006] It also includes an auxiliary controller for controlling the rotation of the motor. The motor is electrically connected to the auxiliary controller, and the auxiliary controller is electrically connected to the main controller of the electric bicycle.

[0007] The auxiliary controller is electrically connected to the main controller of the electric bicycle. When the electric bicycle is in a driving state, if the body of the electric bicycle tilts, a switch can be set to manually press the switch to start the motor forward / reverse, thereby opening / closing the support rod; a sensor that automatically detects the tilt of the body can also be set, and a threshold condition can be set, so that the sensor starts the motor forward / reverse, thereby realizing manual / automatic opening of the auxiliary support.

[0008] Preferably, in order to increase the supporting force of the support rod on the support rod mounting frame, the mounting shaft of the second gear is rotatably connected to the side wall of the support rod mounting frame via a bearing.

[0009] Furthermore, in order to realize automatic detection of the tilt angle of the electric bicycle body, a gyroscope is arranged on the pedal, and the gyroscope is electrically connected to the auxiliary controller.

[0010] Preferably, in order to more conveniently fold up the support rod, an adsorption member is provided on one side of the support rod on the support rod mounting frame, and the adsorption member is electrically connected to the auxiliary controller. When the support rod is folded up, the support rod can be adsorbed together with the adsorption member.

[0011] Preferably, in order to limit the support rod and to assist the support rod when the support rod is opened, a stopper is provided on the support rod mounting frame on the other side of the support rod, and when the support rod is opened, the stopper can limit the support rod from further rotation.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a support component, and when the body of the electric bicycle tilts during driving, the auxiliary device can be opened automatically or manually, and the electric bicycle can be supported from one side of the body by the support rod and the auxiliary wheel, so as to reduce the possibility of the electric bicycle falling and better improve the driving safety of the electric bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the electric bicycle safety driving auxiliary device of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 yes Figure 1 A partial enlarged view of the middle part;

[0017] Figure 4 It is the control circuit diagram. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1: Figure 1 , 2As shown in Figures 3 and 4, two mounting grooves are provided at the bottom of the pedal 1 of the electric bicycle, and two motor fixing frames 16 are fixedly installed in the mounting grooves respectively. The structures of the two motor fixing frames 16 are the same. Taking the structure of one of the motor fixing frames 16 as an example, the motor 6 is embedded in the motor fixing frame 16 at an angle of 45°, and the first gear 7 is fixedly connected to the output shaft of the motor, and the motor drives the first gear 7 to rotate.

[0020] A support rod mounting frame 2 is fixedly connected to both sides of the pedal 1, and the structures of the two support rod mounting frames 2 are the same. Taking the structure of one of the support rod mounting frames 2 as an example, a second gear 8 is provided in the support rod mounting frame, and the mounting shaft is rotatably connected to the support rod mounting frame 2 through a bearing, and one end of the mounting shaft is located in the support rod mounting frame and is fixedly connected to the second gear 8; the other end is located outside the support rod mounting frame and is fixedly connected to the support rod 3; the support rod is located outside the support rod mounting frame 2, and the end of the support rod away from the mounting shaft is connected to an auxiliary wheel 4; the second gear 8 is meshed with the first gear 7, and the starting motor 6 drives the support rod to rotate through the first gear 7 and the second gear 8.

[0021] In order to increase the structural stability between the mounting shaft of the second gear 8 and the support rod mounting frame, the wall thickness of the support rod mounting frame here can be increased, and a bushing can be set here to increase the contact area between the mounting shaft of the second gear 8 and the support rod mounting frame, thereby reducing the possibility that the mounting shaft will deflect due to the upward thrust on the support rod when the support rod is supported on the ground, resulting in the first gear 7 and the second gear 8 being disengaged or the gears being damaged.

[0022] The motor 6 and the first gear 7 are integrally mounted on the pedal 1 through the motor fixing frame 16, and the second gear 8 and the support rod 3 are integrally mounted on the pedal through the support rod mounting frame 2, which is convenient for installation, disassembly and replacement.

[0023] In this example, the auxiliary device also includes an auxiliary controller, the motor is electrically connected to the auxiliary controller, the auxiliary controller is electrically connected to the main controller of the electric bicycle, and the battery of the electric bicycle supplies power to the auxiliary controller. The main controller of the electric bicycle is connected to the auxiliary controller through a wire, and the auxiliary controller obtains the driving state information of the electric bicycle through the change of current and voltage in the wire. When the electric bicycle is in the driving state, the auxiliary controller starts to work; after the electric bicycle is powered off and stopped, the auxiliary controller also stops working.

[0024] The rotation angle and speed of the motor are set through the auxiliary controller, and a switch electrically connected to the auxiliary controller is set on the handlebar of the electric bicycle. When the electric bicycle tilts, the switch is manually pressed, and the auxiliary controller starts the motor after receiving the signal and rotates it to the set angle, so that the support rods on both sides are opened, and the auxiliary wheels at the end are in contact with the ground, which plays a supporting and anti-falling effect. When the auxiliary support is no longer needed, the switch can be pressed again to reverse the motor and retract the support rod.

[0025] In other embodiments, a switch may be provided on each side of the handlebar to control the motor of the auxiliary device on the corresponding side to open the support rod on the corresponding side, so that the support rod 3 on the corresponding side is extended according to the direction of inclination of the vehicle body, rather than the support rods 3 on both sides being extended at the same time.

[0026] The core chip of the auxiliary controller is a 51-type or 32-type single-chip microcomputer.

[0027] Embodiment 2: In this embodiment, in order to realize automatic detection of the vehicle body tilt angle and automatic opening of the support rod, a gyroscope 9 is provided on the pedal 1. The control circuit is as follows Figure 4 As shown, the J1 port is connected to the battery of the electric bicycle to power the entire auxiliary device. The J2 port is connected to the auxiliary controller, and the detection sensor gyroscope is electrically connected to the auxiliary controller. The gyroscope detects the tilt angle of the vehicle body in real time and transmits it to the auxiliary controller. The motor is a stepper motor. In the figure, CW / CCW represents a dual-pulse working mode. Both lines output pulse signals. CW is a forward pulse signal, and CCW is a reverse pulse signal. They are usually output in a differential mode. The phase difference between the two signals is 90 degrees. The rotation direction is determined by the phase lead or lag, and the number of pulses determines the motor rotation angle.

[0028] When the gyroscope detects that the tilt angle of the electric bicycle is greater than the set threshold, the auxiliary controller generates a forward pulse signal CW, and the motor on the corresponding side starts and rotates forward, driving the corresponding first gear 7, second gear 8 and support rod 3 to rotate counterclockwise and rotate to the set angle, so that the support rod on this side opens, and the auxiliary wheel at the end contacts the ground to support the electric bicycle and reduce the possibility of the electric bicycle continuing to tilt and fall.

[0029] When the electric bicycle is stable, that is, when the gyroscope detects that the tilt angle of the electric bicycle is less than the set threshold, the auxiliary controller generates a reverse pulse signal CCW, and the motor 6 on the corresponding side rotates clockwise, driving the support rod on this side to return to the starting position.

[0030] In this embodiment, the tilt threshold is set to 20 degrees. When the gyroscope 9 determines that the tilt angle between the electric bicycle body and the ground is greater than 20 degrees, the control motor 6 is started to drive the support rod 3 to rotate and open. When the electric bicycle body is slightly tilted and the tilt angle between the electric bicycle body and the ground is less than 15 degrees during normal riding or when the body is slightly tilted, the support rod 3 will not open (such as during normal turning).

[0031] In this embodiment, the auxiliary controller is the same as that in Embodiment 1.

[0032] Embodiment 3: Figure 2 In the orientation example, the front of the vehicle is located on the left side of the support rod 3, and a stopper 11 is provided on the right side of the support rod.

[0033] When the tilt angle of the electric bicycle is greater than the set threshold, the motor rotates a certain angle to open the support rod, and the upper end of the support rod abuts against the block to play a limiting role. When the support rod 3 contacts the ground, the impact force caused by the impact causes the support rod 3 to continue to rotate backward, causing the support rod 3 to be excessively offset and lose the support effect on the electric bicycle. At the same time, the block can offset the torque at the connection between the motor 6 and the support rod 3 to prevent the connection from breaking due to excessive load; and one end of the block 11 can also extend to the top of the rotation center of the support rod 3. During the process of the support rod 3 rotating and opening, one end of the block 11 supports the support rod 3 from above the rotation center, thereby increasing the support strength of the support rod 3.

[0034] The other parts are the same as in Example 2.

[0035] Embodiment 4: In this embodiment, an adsorption member 10 is provided on the support rod mounting frame 2, and when the support rod 3 is retracted, it is adsorbed together with the adsorption member 10.

[0036] In this embodiment, the support rod 3 is made of iron material, and the adsorption member 10 is an electromagnet, which is powered on or off by the auxiliary controller. When the support rod 3 is retracted, the electromagnet is continuously powered on to continuously adsorb the support rod, thereby reducing the shaking of the support rod 3 and enhancing the stability of the support rod 3, the second gear mounting shaft and the second gear 8. When the support rod 3 needs to be opened, the auxiliary controller controls the electromagnet to be powered off.

[0037] In this embodiment, the model of the electromagnet is LS-P50 / 25 / 20 DC24V electromagnet.

[0038] The other parts are the same as those in Examples 2 and 3.

[0039] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electric bicycle safety driving assistance device, characterized in that: The electric bicycle comprises two motor fixing frames installed at the bottom of the pedal and two support rod mounting frames installed at the sides of the pedal respectively, the motor fixing frame at the bottom of the pedal and the support rod mounting frame at the sides of the pedal are installed correspondingly; the motor fixing frame is provided with a motor and a first gear, the support rod mounting frame is provided with a second gear, the mounting shaft is rotatably connected with the support rod mounting frame, one end of the mounting shaft located in the support rod mounting frame is fixedly connected with the second gear; the other end is located outside the support rod mounting frame and is fixedly connected with the support rod; the support rod is located outside the support rod mounting frame, and one end of the support rod away from the mounting shaft is connected with an auxiliary wheel; the second gear is meshed with the first gear, and the starting motor drives the support rod to rotate through the first gear and the second gear; It also includes an auxiliary controller for controlling the rotation of the motor. The motor is electrically connected to the auxiliary controller, and the auxiliary controller is electrically connected to the main controller of the electric bicycle.

2. The electric bicycle safety driving assistance device according to claim 1, characterized in that: The installation shaft of the second gear is rotatably connected to the side wall of the support rod installation frame through a bearing.

3. The electric bicycle safety driving assistance device according to claim 1, characterized in that: The utility model also comprises a gyroscope installed on the pedal, and the gyroscope is electrically connected with the auxiliary controller.

4. The electric bicycle safety driving assistance device according to claim 1, characterized in that: A suction piece is arranged on one side of the support rod on the support rod mounting frame. The suction piece is electrically connected to the auxiliary controller. When the support rod is retracted, the support rod can be adsorbed together with the suction piece.

5. The electric bicycle safe driving assistance device according to claim 1, characterized in that: A stopper for limiting excessive rotation of the support rod is arranged on the support rod installation frame and located on the other side of the support rod.

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