CN111688788A

CN111688788A - Intelligence baby's shallow

Info

Publication number: CN111688788A
Application number: CN202010703700.2A
Authority: CN
Inventors: 孙可可; 邱亦睿; 袁少辉
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2020-09-22

Abstract

The invention relates to a baby stroller and discloses an intelligent baby stroller, wherein a rear wheel tire and a front wheel tire are respectively arranged at the bottom of a frame from left to right, a support leg is fixedly connected to the bottom of the frame, a shock absorber is mounted on one side of the support leg, the support leg is movably mounted on the front surface of a suspension connecting rod, a touch sensor is arranged on one side of the frame, a pressure sensor is arranged on the other side of the frame, a brake assembly is mounted on one side, close to the shock absorber, of the bottom of the frame, a spring damping system is added through a shock absorption suspension and matched with a large-size pneumatic tire, and the baby stroller can have comfortable experience on any road surface of all-terrain road; the intelligent brake is used for judging whether braking is needed or not by utilizing the touch sensor and the Hall sensor, and braking is carried out when no one touches; the intelligent power assisting and speed reducing device senses the thrust of hands on a handlebar by using the voltage variable resistance strain gauge and establishes mapping between the pressure and the output of the motor, so that power assisting is performed when a slope is uphill and speed reducing is performed when the slope is downhill.

Description

Intelligence baby's shallow

Technical Field

The invention relates to a baby stroller, in particular to an intelligent baby stroller.

Background

The baby stroller is a vehicle for babies, can be taken only by helping to push or pull the baby stroller, generally comprises a sunshade, a cushion, a sleeping basket and the like, has the service life of three to five years, and can be used for shopping by taking the age of the baby into consideration.

However, the shock attenuation of present baby's shallow is generally all to carry out the shock attenuation through the spring, and unable effectual absorption vibrations, and the brake generally all is through manual brake, and its is intelligent lower, and when the perambulator upslope and downhill path, the effect of unable effectual realization upslope helping hand downhill path speed reduction has increased user's fatigue. Accordingly, one skilled in the art is directed to a smart stroller that solves the problems set forth above in the background.

Disclosure of Invention

The invention aims to provide an intelligent baby stroller to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an intelligent baby stroller comprises a frame, wherein the bottom of the frame is respectively provided with a rear wheel tire and a front wheel tire from left to right, the middle of the frame is provided with a baby sleeping basket, the upper surface of the baby sleeping basket is movably provided with a sunshade, the tail end of the frame is fixedly connected with the front wheel tire through a flange, the bottom of the flange is connected with a damping front fork, the tail end of the damping front fork is provided with a front wheel shaft, the front wheel shaft is rotatably connected with the front wheel tire through a bearing, the inside of the front wheel tire is provided with a front wheel roller, the inside of the rear wheel tire is provided with a rear wheel hub, the inside of the rear wheel hub is rotatably provided with a rear wheel shaft, one side of the rear wheel hub is provided with a hub motor, the bottom of the frame is fixedly connected with a supporting leg, one side of the supporting leg is provided with a damper, the supporting leg is movably arranged on the front surface of a suspension connecting rod, one, and the other side of the frame is provided with a pressure sensor, and one side of the bottom of the frame, which is close to the shock absorber, is provided with a brake assembly.

As a still further scheme of the invention: the size of rear wheel tire is 10 inches, the size of front wheel tire is 8 inches, and front wheel tire and rear wheel tire set up for the tricycle formula, rear wheel tire and front wheel tire are pneumatic tire.

As a still further scheme of the invention: the damping front fork is arranged in a U shape, the inside of the left side of the damping front fork is provided with a spring, the inside of the right side of the damping front fork is provided with a damping device, and the spring damping in the rear wheel tire is connected by a suspension connecting rod.

As a still further scheme of the invention: the touch sensor is a capacitance type touch sensor, the touch sensor and the pressure sensor are arranged on the same horizontal line, and the touch sensor and the pressure sensor are the same in size.

As a still further scheme of the invention: the brake assembly comprises a left brake shoe, a support connecting rod, a speed reduction motor, a sliding block, a pulley, a top block, a right brake shoe, a connecting spring, a screw rod and a supporting pin, wherein the right brake shoe is arranged on one side of the left brake shoe, the top block is arranged at the joint of the left brake shoe and the right brake shoe, the support connecting rod is rotatably arranged on the front surface of the top block, the pulley is arranged inside the sliding block in a rotating mode, the sliding block is arranged on the front surface of the left brake shoe, the speed reduction motor is fixedly arranged on the front surface of the left brake shoe, the connecting spring is arranged at the middle position of the right brake shoe, the screw rod is arranged below the front surface of the right brake shoe close to the connecting spring, and the supporting pin is arranged on the front surface of the right brake shoe.

As a still further scheme of the invention: the ejector block is arranged in a rectangular shape, one end of the connecting spring is connected to the center of the front surface of the right brake shoe, and the other end of the connecting spring is connected to the center of the front surface of the left brake shoe.

As a still further scheme of the invention: the support connecting rod is arranged in an irregular U shape, the sliding block is arranged in a rectangular shape, and a sliding groove is formed in the sliding block.

As a still further scheme of the invention: the right brake shoe and the left brake shoe are in the same shape and are made of die-cast aluminum.

Compared with the prior art, the invention has the beneficial effects that: through the damping suspension, the spring damping system is added and matched with a large-size pneumatic tire, so that the baby stroller has comfortable experience on any road surface of all-terrain road surfaces; the intelligent brake is simplified and applied to the baby stroller by referring to electronic parking brake on the automobile, a drum brake is adopted, a speed reduction motor is used for driving a screw rod to realize electronic brake, a touch sensor and a Hall sensor are used for judging whether the brake is needed or not, and the brake is carried out when no one touches the brake; the intelligent power assisting and speed reducing device senses the thrust of hands on a handlebar by using the voltage variable resistance strain gauge, establishes mapping between the pressure and the output of the motor, senses the state of a vehicle body by using the JY-61P attitude sensor, assists power when ascending a slope and reduces speed when descending the slope.

Drawings

FIG. 1 is a schematic view of an intelligent stroller;

FIG. 2 is a schematic diagram of a touch sensor in an intelligent stroller;

FIG. 3 is a schematic diagram of a pressure sensor in an intelligent stroller;

FIG. 4 is a schematic view of a shock absorber in the intelligent stroller;

FIG. 5 is a schematic structural view of a brake assembly in the intelligent stroller;

FIG. 6 is a top view of a brake assembly in the intelligent stroller;

FIG. 7 is a flow chart of the intelligent braking in the intelligent stroller;

fig. 8 is a circuit diagram of an intelligent assisting and decelerating function in the intelligent stroller.

In the figure: 1. a sunshade; 2. a baby sleeping basket; 3. a flange; 4. damping the front fork; 5. a front wheel tire; 6. a front wheel hub; 7. a front wheel axle; 8. a bearing; 9. a rear wheel tire; 10. a support leg; 11. a shock absorber; 12. a hub motor; 13. a rear wheel axle; 14. a rear wheel hub; 15. a suspension link; 16. a frame; 17. a touch sensor; 18. a pressure sensor; 19. a brake assembly; 20. a left brake shoe; 21. a support connecting rod; 22. a reduction motor; 23. a slider; 24. a pulley; 25. a top block; 26. a right brake shoe; 27. a connecting spring; 28. a screw rod; 29. a support pin.

Detailed Description

Referring to fig. 1 to 8, in the embodiment of the present invention, an intelligent stroller includes a frame 16, a rear tire 9 and a front tire 5 are respectively disposed at the bottom of the frame 16 from left to right, the rear tire 9 is 10 inches, the front tire 5 is 8 inches, the front tire 5 and the rear tire 9 are three-wheeled, the rear tire 9 and the front tire 5 are both pneumatic tires, a baby cradle 2 is mounted at the middle of the frame 16, a sunshade 1 is movably mounted on the upper surface of the baby cradle 2, the end of the frame 16 is fixedly connected to the front tire 5 through a flange 3, the bottom of the flange 3 is connected to a shock-absorbing front fork 4, the shock-absorbing front fork 4 is U-shaped, the interior of the left side of the shock-absorbing front fork 4 is spring, the interior of the right side of the shock-absorbing front fork 4 is damping, the spring damping in the rear tire 9 is connected by a suspension link 15, the end of shock attenuation front fork 4 is provided with front wheel axle 7, front wheel axle 7 passes through bearing 8 with front wheel tire 5 and rotates and is connected, the inside of front wheel tire 5 is provided with front wheel hub 6, the inside of rear wheel tire 9 is provided with rear wheel hub 14, rear wheel hub 13 is installed in rear wheel hub 14's inside rotation, and one side of rear wheel hub 14 is provided with in-wheel motor 12, the bottom rigid coupling of frame 16 has landing leg 10, bumper shock absorber 11 is installed to one side of landing leg 10, through the shock attenuation suspension, add spring damping system and cooperate jumbo size pneumatic tire, so, the baby's shallow can both have comfortable experience on all topography road surface arbitrary road surface.

In fig. 2, 3, 5, 6, 7 and 8: the landing leg 10 is movably mounted on the front surface of a suspension connecting rod 15, one side of a frame 16 is provided with a touch sensor 17, the other side of the frame 16 is provided with a pressure sensor 18, the touch sensor 17 is a capacitive touch sensor, the touch sensor 17 and the pressure sensor 18 are arranged on the same horizontal line, the touch sensor 17 and the pressure sensor 18 have the same size, one side of the bottom of the frame 16 close to a shock absorber 11 is provided with a brake assembly 19, the brake assembly 19 comprises a left brake shoe 20, a support connecting rod 21, a speed reducing motor 22, a sliding block 23, a pulley 24, a top block 25, a right brake shoe 26, a connecting spring 27, a screw rod 28 and a support pin 29, one side of the left brake shoe 20 is provided with a right brake shoe 26, the joint of the left brake shoe 20 and the right brake shoe 26 is provided with a top block 25, the front surface of the top block 25 is rotatably provided with the support connecting, the pulley 24 is rotatably installed inside the sliding block 23, the support link 21 is irregularly arranged in a 'U' shape, the sliding block 23 is arranged in a rectangle, a sliding groove is formed inside the sliding block 23, the sliding block 23 is arranged on the front surface of the left brake shoe 20, the speed reduction motor 22 is fixedly installed on the front surface of the left brake shoe 20, the connecting spring 27 is arranged in the middle of the right brake shoe 26, the ejector block 25 is arranged in a rectangle, one end of the connecting spring 27 is connected to the center of the front surface of the right brake shoe 26, the other end of the connecting spring 27 is connected to the center of the front surface of the left brake shoe 20, the right brake shoe 26 and the left brake shoe 20 are in the same shape, the right brake shoe 26 and the left brake shoe 20 are both made of aluminum, the front surface of the right brake shoe 26 is provided with a lead screw 28 close to the lower part of the connecting spring 27, the front surface of the right brake shoe 26, referring to electronic parking brake on an automobile, the electronic parking brake is simplified and applied to a baby stroller, a drum brake is adopted, a speed reduction motor 22 is used for driving a screw rod 28 to realize electronic brake, whether the brake is needed or not is judged by using a touch sensor 17 and a Hall sensor, and the brake is carried out when no one touches the brake; the intelligent power assisting and speed reducing device senses the thrust of hands on a handlebar by using the voltage variable resistance strain gauge, establishes mapping between the pressure and the output of the motor, senses the state of a vehicle body by using the JY-61P attitude sensor, assists power when ascending a slope and reduces speed when descending the slope.

The working principle of the invention is as follows: the front end of the baby stroller is connected with a damping front fork 4 through a flange 3, the inside of the left side of the damping front fork 4 is provided with a spring, the inside of the right side of the damping front fork 4 is provided with a damping, the spring damping in a rear wheel tire 9 is connected by a suspension connecting rod 15, and the front wheel tire 5 and the rear wheel tire 9 are both pneumatic tires, wherein the size of the rear wheel tire 9 is 10 inches, the size of the front wheel tire 5 is 8 inches, and the front wheel tire 5 and the rear wheel tire 9 are arranged in a three-wheel manner, the three-wheel baby stroller is flexible in steering, can control the direction by a single hand, the pneumatic tires are far superior to simple spring shock absorption, and the damping shock absorption of a frame 16 is obviously superior to the pneumatic tires, so that the baby stroller can have comfortable experience on any road surface of all terrain by adopting a spring damping system and matching with the large-size pneumatic tires, and a speed reducing motor 22 and a screw rod 28 slide block 23 are adopted to push a, the device is adopted for the reason that the braking force is large enough, the precision is high enough to prepare for subsequent electronic parking braking and intelligent braking, the parking braking switch, the touch sensor 17 and the attitude sensor are respectively known to have the highest priority from large to small according to a flow chart, the program can be used for the next step only in a non-braking state, otherwise, the program can be infinitely circulated until the braking button is in the non-braking state, the program can enter a circulation, the sensor data are read according to the priority, the corresponding functions are entered, the touch sensor 17 is in the high priority, if a hand does not hold a handlebar, the values of the touch sensor 17 and the speed sensor can be continuously read within 10s, the normal state is returned when the hand touch is detected, and once the non-touch state occurs, the baby stroller is braked immediately when the displacement occurs, if no touch or displacement exists, the automatic braking is carried out within 10 seconds after time out, only if the touch is detected, the sensor which can trigger the corresponding function is entered, such as an uphill signal and a downhill signal, the corresponding subprogram is entered, if the subprogram needs large calculation amount or other reasons, such as avoiding interference and concentration on a single task, the subprogram can also be modularized, a single MCU operates a special function, an ESP32 only reads the number of the sensors and decides whether to enter the corresponding subprogram, only corresponding starting and ending signals are sent to the corresponding MCU when the access is needed, the uphill boosting and downhill deceleration mainly adopts a contact method, the moment is not directly measured, the power input of a bicycle is a pedal linked crank, and the input of a baby stroller is the thrust of a human hand, so that the pressure sensitive resistance strain gauge is directly used for sensing the thrust of the human hand to the grip of the baby, the thrust to the handle both sides carries out the atress analysis, maps this thrust and the moment of torsion of in-wheel motor 12 output, even when the user upslope, the moment of torsion of in-wheel motor 12 output will grow for it is lighter to push away, and during the downhill path, because the user passes through pressure sensitive type resistance foil gage sensing pulling force, thereby makes the moment of torsion reduce, thereby can play certain brake effect, thereby play certain security.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The intelligent baby stroller comprises a frame (16) and is characterized in that the bottom of the frame (16) is respectively provided with a rear wheel tire (9) and a front wheel tire (5) from left to right, the middle of the frame (16) is provided with a baby sleeping basket (2), the upper surface of the baby sleeping basket (2) is movably provided with a sunshade (1), the tail end of the frame (16) is fixedly connected with the front wheel tire (5) through a flange (3), the bottom of the flange (3) is connected with a shock absorption front fork (4), the tail end of the shock absorption front fork (4) is provided with a front wheel shaft (7), the front wheel shaft (7) is rotatably connected with the front wheel tire (5) through a bearing (8), the inside of the front wheel tire (5) is provided with a front wheel roller (6), the inside of the rear wheel tire (9) is provided with a rear wheel hub (14), and the inside of the rear wheel hub (14) is rotatably provided with a rear wheel shaft (13), and one side of rear wheel hub (14) is provided with in-wheel motor (12), the bottom rigid coupling of frame (16) has landing leg (10), bumper shock absorber (11) are installed to one side of landing leg (10), and landing leg (10) movable mounting is at the front surface of suspension connecting rod (15), one side of frame (16) is provided with touch sensor (17), and the opposite side of frame (16) is provided with pressure sensor (18), brake assembly (19) are installed to one side that the bottom of frame (16) is close to bumper shock absorber (11).

2. The intelligent stroller of claim 1, wherein the rear tire (9) is 10 inches in size, the front tire (5) is 8 inches in size, and the front tire (5) and the rear tire (9) are provided in a three-wheel configuration, and the rear tire (9) and the front tire (5) are both pneumatic tires.

3. An intelligent stroller according to claim 1, wherein the shock absorbing front fork (4) is arranged in a "U" shape, the inner part of the left side of the shock absorbing front fork (4) is arranged in a spring shape, the inner part of the right side of the shock absorbing front fork (4) is arranged in a damping shape, and the spring damping in the rear wheel tire (9) is connected by a suspension link (15).

4. An intelligent stroller according to claim 1, wherein the touch sensor (17) is a capacitive touch sensor, and the touch sensor (17) and the pressure sensor (18) are arranged on the same horizontal line, and the size of the touch sensor (17) and the size of the pressure sensor (18) are the same.

5. The intelligent baby stroller according to claim 1, wherein the brake assembly (19) comprises a left brake shoe (20), a support link (21), a reduction motor (22), a slide block (23), a pulley (24), a top block (25), a right brake shoe (26), a connecting spring (27), a screw rod (28) and a support pin (29), the right brake shoe (26) is arranged on one side of the left brake shoe (20), the top block (25) is arranged at the joint of the left brake shoe (20) and the right brake shoe (26), the support link (21) is rotatably arranged on the front surface of the top block (25), the pulley (24) is arranged at one end of the support link (21), the pulley (24) is rotatably arranged inside the slide block (23), the slide block (23) is arranged on the front surface of the left brake shoe (20), the reduction motor (22) is fixedly arranged on the front surface of the left brake shoe (20), a connecting spring (27) is arranged in the middle of the right brake shoe (26), a screw rod (28) is installed on the front surface of the right brake shoe (26) close to the lower portion of the connecting spring (27), and a bearing pin (29) is installed on the front surface of the right brake shoe (26).

6. The intelligent stroller of claim 5, wherein the top block (25) is rectangular, one end of the connecting spring (27) is connected to the center of the front surface of the right brake shoe (26), and the other end of the connecting spring (27) is connected to the center of the front surface of the left brake shoe (20).

7. The intelligent baby stroller according to claim 5, wherein the support connecting rod (21) is irregularly arranged in a U shape, the sliding block (23) is arranged in a rectangular shape, and the sliding block (23) is internally provided with a sliding groove.

8. The stroller of claim 5, wherein the right brake shoe (26) and the left brake shoe (20) are identical in shape, and the right brake shoe (26) and the left brake shoe (20) are both die cast aluminum.