Passive brake triggering system

Abstract

The utility model discloses a passive brake triggering system which comprises a square mounting head which is arranged below a steering vertical rod and is provided with a mounting cavity, a front wheel frame which is hinged in the mounting cavity of the square mounting head, a pressure sensor which is arranged on the side wall of the square mounting head, and a pressing block and an elastic piece which are arranged on the front wheel frame, the square connector is provided with an abutting table, the front wheel frame abuts against the abutting table when being vertical, the elastic piece exerts elastic force on the front wheel frame to enable the front wheel frame to abut against the abutting table, and the pressure sensor is connected with the controller. The distance sensor is arranged on the steering vertical rod to obtain the distance of a barrier right ahead, and when the distance is smaller than the preset distance, a signal is sent to control the rear wheels to stop rotating and brake through the controller, and in addition, the front wheel assembly is arranged to be of a structure capable of slightly swinging in the front-back direction; and at the moment when the step is hit, the pressure sensor is extruded and triggered to send a signal, the controller controls the rear wheel to stop rotating and brake, and the passive brake triggering system effectively improves the driving safety.

Description

Technical Field

[0001] The utility model relates to the passive braking of an electric scooter, in particular to a passive braking trigger system. Background Art

[0002] An electric scooter is a transportation vehicle that combines a traditional human-powered skateboard and electric drive. It has the characteristics of being light, portable, environmentally friendly and energy-saving. Its main uses include short-distance commuting, urban commuting and leisure entertainment, etc.

[0003] An electric scooter generally includes a steering vertical rod, a steering handle, a pedal, a front wheel assembly and a rear wheel assembly. The rear wheel assembly generally uses a hub motor. The front wheel assembly is arranged at the bottom of the steering vertical rod, and the steering handle is arranged at the top of the steering vertical rod. In the prior art, only active braking is generally equipped, that is, a brake lever handbrake or an electronic brake, both of which require the rider to actively trigger.

[0004] The actively triggered brake cannot perform passive braking deceleration when encountering an obstacle, and it is easy to be dangerous. Especially when driving, the front wheel is easy to hit a step that is not easy to be found on the roadside of the road curb, resulting in danger. Summary of the Utility Model

[0005] Based on the deficiency that the prior art does not equip a passive braking trigger system, resulting in safety risks during driving, the utility model provides a passive braking trigger system.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] The passive braking trigger system includes a power supply, a controller, a rear wheel with a hub motor and a signal acquisition module arranged on the electric scooter. The power supply and the hub motor are both connected to the controller. The signal acquisition module includes a square mounting head arranged below the steering vertical rod and having a mounting cavity, a front wheel frame hinged in the mounting cavity of the square connecting head, a pressure sensor arranged on the side wall of the square connecting head, a pressing block arranged on the front wheel frame and pressing the pressure sensor when the front wheel frame rotates backward, and an elastic member arranged on the inner side wall of the square mounting head. There is a abutting platform on the inner side wall at the rear of the square connecting head, and when the front wheel frame is vertical, it abuts on the abutting platform. The elastic member applies an elastic force to the front wheel frame to make it abut on the abutting platform. The pressure sensor is connected to the controller.

[0008] Preferably, two elastic members are provided. One is located on the upper and lower sides of the hinge point of the front wheel frame. The upper elastic member applies a backward elastic force to the upper side of the hinge point of the front wheel frame, and the lower elastic member applies a forward elastic force to the lower side of the hinge point of the front wheel frame.

[0009] Preferably, a through hole is provided on the rear side wall of the square mounting head. The pressure sensor is arranged on the outer side wall at the rear of the square mounting head and is located at the through hole. When the front wheel frame rotates backward, the pressing block extends out through the through hole and presses the pressure sensor.

[0010] Preferably, a flat-bottom U-shaped mounting seat is provided at the outer side wall at the rear of the square mounting head. The mounting seat is located around the through hole, and the pressure sensor is installed in the opening of the mounting seat.

[0011] Preferably, the signal acquisition module further includes a plurality of distance sensors arranged on the steering sleeve of the electric scooter, and the distance sensors are connected to the controller.

[0012] Preferably, the controller includes a main controller and a sub-controller. The main controller is arranged in the pedal, and the distance sensor and the pressure sensor are connected to the sub-controller.

[0013] Preferably, a shifter with a power supply is provided on the steering handle of the electric scooter, and the sub-controller is arranged in the shifter.

[0014] Preferably, both the sub-controller and the main controller are provided with wireless communication modules, and the two are wirelessly communicatively connected.

[0015] Preferably, the wireless communication module is a Bluetooth module or a WI FI module.

[0016] Preferably, the front wheel frame has a square rod. The width of the square rod in the left-right direction is the same as the width of the installation cavity. The square rod is hinged in the installation cavity through a hinge shaft that passes through the square mounting head in the left-right direction.

[0017] Compared with the prior art, the advantages of the present utility model are as follows: In this application, a distance sensor is arranged on the steering sleeve to obtain the distance to the obstacle directly in front. When the distance is less than the preset distance, a signal is sent to control the rear wheel to stop rotating and brake through the controller. In addition, the front wheel assembly is set to a structure that can swing slightly back and forth. When it hits the step at a certain moment, the pressure sensor is squeezed and triggered to send a signal to control the rear wheel to stop rotating and brake through the controller. The dual passive brake trigger system effectively improves the driving safety. Description of the Drawings

[0018] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used as a limitation to the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is a perspective view of the present application;

[0021] Figure 3 is an exploded view of the present application;

[0022] Figure 4 is an exploded view of the present application;

[0023] In the figure: 01 is a steering vertical rod; 011 is a square mounting head; 0111 is a mounting seat; 0112 is a through hole; 0113 is an abutting platform; 0114 is a mounting cavity; 02 is a steering handle; 03 is a finger shifter; 04 is a steering sleeve; 041 is a distance sensor; 05 is a pedal; 06 is a rear wheel; 07 is a front wheel frame; 071 is a square rod; 0711 is a pressing block; 10 is an elastic member; 20 is a pressure sensor; 30 is a hinge shaft. Detailed implementation manners

[0024] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present utility model.

[0025] It should be noted that like reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0026] This embodiment mainly elaborates on the title of the passive braking trigger system, as follows:

[0027] The passive braking trigger system, such as Figures 1-4As shown in the figure, it includes a power supply, a controller, a rear wheel 06 with a hub motor, and a signal acquisition module arranged on an electric scooter. The power supply and the hub motor are both connected to the controller. The signal acquisition module includes a square mounting head 011 arranged below a steering vertical rod 01 and having a mounting cavity 0114, a front wheel frame 07 hinged in the mounting cavity 0114 of the square connector, a pressure sensor 20 arranged on the side wall of the square connector, a pressing block 0711 arranged on the front wheel frame 07 and pressing the pressure sensor 20 when the front wheel frame 07 rotates backward, and an elastic member 10 arranged on the inner side wall of the square mounting head 011. There is a abutting platform 0113 on the inner side wall at the rear of the square connector, and when the front wheel frame 07 is vertical, it abuts against the abutting platform 0113. The elastic member 10 applies an elastic force to the front wheel frame 07 to make it abut against the abutting platform 0113, and the pressure sensor 20 is connected to the controller. In this solution, a distance sensor 041 is arranged on the steering vertical rod 01 to obtain the distance to an obstacle directly in front. When the distance is less than a preset distance, a signal is sent to control the rear wheel 06 to stop rotating and brake through the controller. In addition, the front wheel assembly is set to a structure that can swing slightly back and forth. When it hits a step at a certain moment, the pressure sensor 20 is squeezed and triggered to send a signal to control the rear wheel 06 to stop rotating and brake through the controller. The dual passive braking trigger system effectively improves driving safety.

[0028] Preferably, two elastic members 10 are provided. One is located on the upper and lower sides of the hinge point of the front wheel frame 07. The upper elastic member 10 applies a backward elastic force to the upper side of the hinge point of the front wheel frame 07, and the lower elastic member 10 applies a forward elastic force to the lower side of the hinge point of the front wheel frame 07. The elastic member 10 can be a spring or a rubber block. The two elastic members 10 apply elastic forces to the wheel frame to maintain the attitude of the wheel frame and prevent it from shaking significantly during driving.

[0029] Preferably, a through hole 0112 is provided on the rear side wall of the square mounting head 011. The pressure sensor 20 is arranged on the outer side wall at the rear of the square mounting head 011 and is located at the through hole 0112. When the front wheel frame 07 rotates backward, the pressing block 0711 extends out from the through hole 0112 and squeezes the pressure sensor 20. Specifically, a flat-bottom U-shaped mounting seat 0111 is provided on the outer side wall at the rear of the square mounting head 011. The mounting seat 0111 is located around the through hole 0112, and the pressure sensor 20 is installed in the opening of the mounting seat 0111. This structure realizes the external placement of the pressure sensor 20, which is convenient for installation.

[0030] Specifically, the signal acquisition module further includes a plurality of distance sensors 041 arranged on a steering sleeve 04 of the electric scooter. The distance sensors 041 are connected to the controller. The distance sensors 041 are used to detect obstacles in front and brake when the distance to the obstacle is too close.

[0031] Preferably, the controller includes a main controller and a secondary controller. The main controller is disposed within the pedal 05, and the distance sensor 041 and the pressure sensor 20 are connected to the secondary controller. The main controller is used to control the brake and the hub motor.

[0032] Preferably, a shifter 03 with a power supply is provided on the steering handle 02 of the electric scooter, and the secondary controller is disposed within the shifter 03. An arc-shaped magnet and a Hall sensor are provided within the shifter 03. When rotating, the Hall sensor senses the magnetic field change to control the rotation speed of the hub motor.

[0033] Preferably, both the secondary controller and the main controller are provided with wireless communication modules, and the two are wirelessly connected. Specifically, the wireless communication module is a Bluetooth module or a WI FI module. By setting two controllers and wirelessly connecting them through the wireless communication module, the wiring of the steering part and the pedal 05 part can be separately arranged. The wires of the sensors on the steering handle 02 are arranged within the steering sleeve 04 and connected to the shifter 03, while the wires of the pedal 05 part are connected to the hub motor within the wheel. The wiring is partitioned, which is beneficial to the disassembly and folding of the whole vehicle.

[0034] Preferably, the front wheel frame 07 has a square rod 071. The width of the square rod 071 in the left-right direction is the same as the width of the installation cavity 0114. The square rod 071 is hinged within the installation cavity 0114 through a hinge shaft 30 that passes through the square installation head 011 in the left-right direction.

[0035] The above has introduced in detail the title of the passive brake trigger system provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A passive braking trigger system, comprising a power supply, a controller, a rear wheel with a hub motor, and a signal acquisition module arranged on an electric scooter, the power supply and the hub motor are both connected to the controller, and it is characterized in that: The signal acquisition module includes a square mounting head disposed below the steering vertical rod and having a mounting cavity, a front wheel frame hinged in the mounting cavity of the square connecting head, a pressure sensor disposed on the side wall of the square connecting head, a pressing block disposed on the front wheel frame and pressing the pressure sensor when the front wheel frame rotates backward, and an elastic member disposed on the inner side wall of the square mounting head. There is a abutting platform on the inner side wall at the rear of the square connecting head, and when the front wheel frame is vertical, it abuts against the abutting platform. The elastic member applies an elastic force to the front wheel frame to make it abut against the abutting platform, and the pressure sensor is connected to the controller.

2. The passive braking trigger system according to claim 1, wherein: There are two elastic members, one of which is located on the upper and lower sides of the hinge point of the front wheel frame. The upper elastic member applies a backward elastic force to the upper side of the hinge point of the front wheel frame, and the lower elastic member applies a forward elastic force to the lower side of the hinge point of the front wheel frame.

3. The passive braking trigger system according to claim 1, wherein: There is a through hole on the rear side wall of the square mounting head. The pressure sensor is disposed on the outer side wall at the rear of the square mounting head and is located at the through hole. When the front wheel frame rotates backward, the pressing block extends out of the through hole and presses the pressure sensor.

4. The passive braking trigger system according to claim 3, wherein: There is a flat-bottom U-shaped mounting seat at the outer side wall at the rear of the square mounting head. The mounting seat is located around the through hole, and the pressure sensor is installed in the opening of the mounting seat.

5. The passive braking trigger system according to claim 1, wherein: The signal acquisition module further includes a plurality of distance sensors disposed on the steering sleeve of the electric scooter, and the distance sensors are connected to the controller.

6. The passive braking trigger system according to claim 1, wherein: The controller includes a main controller and a sub-controller. The main controller is disposed in the pedal, and the distance sensor and the pressure sensor are connected to the sub-controller.

7. The passive braking trigger system according to claim 6, characterized in that: There is a shifter with a power supply on the steering handle of the electric scooter, and the sub-controller is disposed in the shifter.

8. The passive braking trigger system according to claim 7, characterized in that: Both the sub-controller and the main controller are provided with wireless communication modules, and the two are wirelessly communication-connected.

9. The passive braking trigger system according to claim 1, wherein: The wireless communication module is a Bluetooth module or a WIFI module.

10. The passive braking trigger system according to claim 1, characterized in that: The front wheel frame has a square rod, the width of the square rod in the left-right direction is the same as the width of the mounting cavity, and the square rod is hinged in the mounting cavity through a hinge shaft passing through the square mounting head in the left-right direction.

Images