A fall-preventing infant intelligence walker

Abstract

The application relates to a fall-preventing infant intelligence walker, belonging to the walking assisting field, which comprises a walker main body, a leg protection system, a hip protection system, a motion monitoring system, a control center and a communication device; the walker main body is arranged on the two sides and the rear of a user as a supporting frame, and the bottom of the walker main body is provided with a rolling assembly; the leg protection system protects and supports the legs of the user during falling; the hip protection system protects and supports the hips of the user during falling; the motion monitoring system monitors the motion state of the user and transmits data to the control center for processing; the control center collects the data obtained by the motion monitoring system and issues instructions to an execution end; the communication device is connected with the control center and is connected with a handheld terminal through a wireless network, and the information of the walker is transmitted to the handheld terminal; the application solves the problems that the existing walker is not intelligent, the vision is blocked, the infant cannot be actively protected from falling and the function is single.

Description

Technical Field

[0001] This invention belongs to the field of walking assistance, specifically relating to a smart walker for toddlers that prevents falls, assisting toddlers in walking and protecting their safety. Background Technology

[0002] The best age for toddlers to learn to walk is between 8 and 12 months. Before this, they go through five stages: rolling over, sitting, crawling, and walking with support, which strengthens their limbs and lays the foundation for walking. During the walking stage, baby walkers are a means of transportation for toddlers before they truly master walking skills. They can appropriately assist babies in learning to walk. Currently, there are many types of baby walkers on the market, which can be broadly categorized into push-type and wrap-around type.

[0003] Push walkers generally offer some resistance, allowing toddlers to stand and push the walker forward with their hands. The speed is controlled by the toddler, fostering greater autonomy in learning to walk. However, most push walkers lack side rails or back rails. Even if a toddler grasps the handles while learning to walk, their weak lower limbs make them prone to falling: either their legs bend and they lean backward, or they kneel on one or both legs and tilt forward, to the left, or to the right. Therefore, parents need to stay close during use to prevent falls.

[0004] Enveloping walkers surround the toddler in the center, providing all-around protection. The toddler can sit on the seat or stand, and move effortlessly using the wheels. However, the disadvantages of enveloping walkers include the fact that while the tight enclosure helps prevent falls, the flexible seat restricts the toddler's hip position, limiting leg movement and potentially leading to poor walking posture. Furthermore, the walker's speed is difficult to control, increasing the risk of tipping over.

[0005] Currently, both push-type and wrap-around baby walkers on the market have drawbacks such as limited field of vision, obstructed forward view, and low level of intelligence. They cannot actively avoid surrounding obstacles, cannot activate protection when the child is about to fall, and cannot allow parents who are not nearby to see the child's walking progress. In addition, they have limited functions, become useless after a short period of six months during the learning-to-walk stage, take up a lot of space, and are inconvenient to disassemble. Summary of the Invention

[0006] The technical problem to be solved:

[0007] To overcome the shortcomings of existing technologies, this invention provides a fall-prevention intelligent baby walker. Utilizing multiple sensors and a control center, the walker actively avoids obstacles during use, monitors for potential falls, and, when a fall is imminent, uses a protective system to naturally support the child's legs or buttocks via mechanical transmission to prevent a fall. In addition to being used for walking, it can also be used as a stroller. Furthermore, by installing a communication device and a camera, the child's walking status can be remotely monitored. This invention solves the problems of existing baby walkers being insufficiently intelligent, having obstructed visibility, lacking the ability to actively and gently protect children from falls, and having limited functionality.

[0008] The technical solution of the present invention is: a fall-prevention intelligent toddler walker, comprising a walker body, a leg protection system 3, a hip protection system 4, a motion monitoring system, a control center, and a communication device; the walker body serves as a support frame surrounding the user's sides and rear, and a rolling component is provided at its bottom;

[0009] The leg protection system 3 provides protective support for the user's legs during a fall;

[0010] The hip protection system 4 provides protection and support for the user's hips during a fall.

[0011] The motion monitoring system monitors the user's motion status and transmits the data to the control center for processing.

[0012] The control center collects data from the motion monitoring system and issues commands to the execution terminal.

[0013] The communication device is connected to the control center and to a handheld terminal via a wireless network, used to transmit information from the walker to the handheld terminal.

[0014] A further technical solution of the present invention is: the main body of the walker includes a back body 1 located behind the user, side bodies 2 located on both sides, two front support legs 51 and two rear support legs 52. The back body 1, the side bodies 2 and the rear support legs 52 are an integral structure. The two rear support legs 52 are located on both sides below the back body 1, and the two front support legs 51 are respectively installed at the front end of the left and right side bodies 2.

[0015] The back body 1 has an internal cavity to accommodate the hip protection system 4 when it is folded up. A semi-circular groove is opened on the lower inner side of the back body 1. The two ends of the semi-circular groove extend to the side bodies 2 on both sides. The semi-circular groove communicates with the internal cavity and serves as the outlet when the hip protection system 4 is activated.

[0016] A further technical solution of the present invention is as follows: the leg protection system 3 consists of two sets, symmetrically installed on the inner sides of the side main body 2 on both sides; the leg protection system 3 includes a first leg motor, a first leg gear 33, a limiting slide rail 34, a first rack 32, and a leg support plate 31; the first leg motor is installed on the inner front end of the side main body 2, and the first gear 33 installed on its output shaft meshes with the first rack 32, and the first rack 32 is slidably installed on the inner side of the side main body 2 through the limiting slide rail 34; the leg support plate 31 is installed on the outer end face of the first rack 32; the first motor drives the first gear 33, and drives the first rack 32 to slide obliquely along the limiting slide rail 34, thereby completing the position switching control of the leg support plate 31 when it is in operation and when it is retracted; a soft pad 311 is installed on the front end of the upper surface of the leg support plate 31 to ensure comfort when supporting the legs.

[0017] A further technical solution of the present invention is: the buttock protection system 4 includes a buttock limiting slide rail 45, a sliding chain 44, a back gear 42, a spring belt 43, and a buttock gear 41; the two buttock limiting slide rails 45 are symmetrically installed on the inner sides of the back body 1 and extend into the side body 2 on both sides respectively; the two sliding chains 44 are symmetrically installed on the two buttock limiting slide rails 45 and can slide along the buttock limiting slide rails 45 from their retracted position, i.e., inside the back body 1, to the execution position, inside the side body 2;

[0018] Two back gears 42 are arranged as a group and are symmetrically installed below the tracks of the two hip limiting slide rails 45, respectively meshing with the head positions of the sliding chains 44 on both sides at the retracted position; the back gears 42 are driven by a back motor; several spring bands 43 are arranged in parallel, with their two ends fixed to the sliding chains 44 on both sides respectively;

[0019] The two hip gears 41 are a set, symmetrically installed below the tracks of the hip limiting slide rails 45 on both sides, and respectively mesh with the tail positions of the sliding chains 44 on both sides of the execution position; the hip gears 41 are driven by the hip motor.

[0020] When the hip protection system 4 is retracted, it is located in the cavity inside the back body 1. When triggered, the back motor drives the back gear 42 to rotate, which drives the sliding chains 44 on both sides to slide down along the hip limiting slide rail 45. At the same time, the hip motor drives the hip gear 41 to rotate, which continues to drive the sliding chains 44 to slide down into the side body 2. Meanwhile, the spring strap 43 supports the user's hips to prevent falls.

[0021] A further technical solution of the present invention is: the sliding chain 44 is a hollow pin chain, which is composed of a pin 443, a roller 441 and a long washer 442. The long washer 442 on the inner side of the sliding chain 44 has a buckle 444 for fixing the spring belt 43.

[0022] A further technical solution of the present invention is as follows: the back body 1 further includes a safety belt 11, a retractable push-pull rod 12, and a display screen 14; the safety belt 11 is installed on the back body 1, and the safety belt 11 restricts the user's range of motion for protection; the retractable push-pull rod 12 is installed on the upper back of the back body 1, and is used when the walker is used as a pushcart; the display screen 14 is installed on the upper surface of the back body, and is used to display the walking speed, distance traveled, number of steps, and information on the number of times the child is expected to fall during use;

[0023] The two front support legs 51 are equipped with a light 512 and a speaker 513. The light 512 is used to provide illumination when the surrounding environment is too dark; the speaker 513 is used to play music, the guardian's greeting, and a bell.

[0024] A further technical solution of the present invention is: the rolling assembly includes a universal wheel 511, a fixed wheel 521, and a brake component 523. The two universal wheels 511 are respectively installed at the lower ends of the two front support legs 51, the two fixed wheels 521 are respectively at the lower ends of the two rear support legs 52, and the two brake components 523 are respectively installed on the two fixed wheels 521. The brake components 523 are driven by a brake motor.

[0025] A further technical solution of the present invention is as follows: the motion monitoring system includes a camera 21, a distance sensor 514, an infrared ranging sensor 13, a speed sensor 522, an accelerometer 112, a step counting sensor 113, and a photoresistor 515. The camera 21 is embedded in the inner side of the side main body 2 for observing the user's walking status; multiple distance sensors 514 are mounted on the two front support legs 51 for determining the distance of the walker to obstacles in front and to the left and right; the infrared ranging sensor 13 is embedded in the upper part of the back main body 1. The position is used to monitor the distance from the user's back to the back body 1 in real time; the speed sensor 522 is installed on one side of the rear support leg 52 to monitor the real-time speed of the walker; the accelerometer 112 and the step counting sensor 113 are inserted through the safety belt 11, the accelerometer 112 is used to monitor the user's real-time acceleration, and the step counting sensor 113 is used to monitor the number of steps the user takes; the two photoresistors 515 are respectively installed on the two front support legs 51 to monitor the ambient light intensity of the walker and are used in conjunction with the lighting lamp 512.

[0026] A further technical solution of the present invention is: the intelligent toddler walker also includes a hand arm 6 and a handle 61, the two hand arms 6 are respectively installed on the front end of the side body 2 on the left and right sides; the handle 61 is connected to the hand arm 6 through a pivot.

[0027] The armrest 6, front support leg 51, and side body 2 are all provided with mounting holes, and the three are fixed together by inserting a long knob 7 into the mounting holes. The long knob 7 includes a knob head and a rod. The rod of the long knob 7 is provided with multiple axial grooves. The mounting holes of the armrest 6, front support leg 51, and side body 2 are all provided with teeth that match the grooves of the long knob 7 rod. By adjusting the angle of the armrest 6 around the long knob 7, the teeth on the armrest 6 can be engaged in different grooves to adjust the height of the armrest 6. By adjusting the angle of the front support leg 51 around the long knob 7, the teeth on the support leg 51 can be engaged in different grooves to adjust the overall length of the vehicle and the height of the seat formed after the hip protection system 4 is lowered.

[0028] A further technical solution of the present invention is: the control center is a single-chip microcomputer, and the leg protection system 3, hip protection system 4, brake component 523, lighting 512, audio 513, and display screen 14 are all connected to the control center and serve as execution terminals, controlled by the control center.

[0029] Beneficial effects

[0030] The beneficial effects of this invention are as follows: This invention uses data signals obtained from sensors including cameras, distance sensors, infrared ranging sensors, speed sensors, accelerometers, and step counters in the motion monitoring system as the basis for the control center's judgment. This makes the product more intelligent. When the control center determines that the child is inclined to fall forward, to the left, or to the right, the leg protection system activates, lifting the child up before their legs hit the ground to prevent injury. When the control center determines that the child is inclined to fall backward, the hip protection system activates, supporting the child's hips before they fall backward to the ground to prevent injury. When the control center determines that the child is close to an obstacle, the braking component operates slowly, gently stopping the child from continuing to move and preventing them from tripping due to excessive force. In the above three abnormal walking states of the child, the speaker on the front support leg will sound an alarm to remind the guardian to help the child. Once the child returns to a safe walking state, all protection systems retract, the speaker turns off, and the child continues learning to walk.

[0031] This invention relates to a fall-prevention intelligent baby walker. When the baby is walking normally, the monitoring system receives a normal signal, and the display screen shows the walking speed (i.e., the baby's walking speed), the distance traveled, the number of steps, and the number of times the baby tends to fall forward and backward during the process. The data on the display screen and the images obtained by the camera can be sent to the parent's handheld terminal via a communication device.

[0032] When the hip protection system of this invention is retracted, the back gears lock the sliding chain. During operation, the two back gears and two hip gears rotate, and the chain, under the thrust of gravity and the rotation of the gears, slides down at high speed. This allows for a quick reaction before the child falls backward, supporting their hips. Similarly, the leg protection system works in the same way. When retracted, the first leg gear locks the first rack. During operation, the first leg gear rotates, and the first rack, under the thrust of gravity and the rotation of the first leg gear, slides down at high speed at an angle. This allows for a quick reaction before the child falls forward, supporting their legs. Furthermore, when both the hip and leg protection systems are deployed, their direction of movement is perpendicular to the direction of the child's body movement when falling, preventing impact and injury, and providing a gentler, more comfortable, and natural protection. Even when the protection systems are retracted, the child remains in a normal and healthy push-walking process, receiving proper exercise, demonstrating care for the child.

[0033] This invention allows the baby walker to transform into a stroller. When the hip protection system is lowered, it functions as a seat. When used outdoors, pressing the button on the display screen lowers the hip protection system, and pulling out the retractable push-pull rod at the back of the main body transforms it into a stroller, allowing parents to push their toddlers out for play. When the light is dim, i.e., when the photoresistor senses that the light intensity is below 20 lux, the light automatically turns on and turns off when the light intensity returns to normal.

[0034] This invention uses a long knob to secure the armrests, front support legs, and side body. The long knob has multiple toothed grooves for easy disassembly and adjustment: rotating the teeth on the armrests into different grooves allows for adjustable positions to accommodate children of different heights and arm lengths; rotating the teeth on the front support legs into different grooves allows for adjustable overall length and seat height when the hip protection system is lowered, accommodating children with different activity levels and walking habits; when not in use, the entire vehicle can be easily stored separately.

[0035] This invention relates to an intelligent toddler walker designed to prevent falls. The main body of the walker is located on the sides and rear of the toddler. When the toddler is learning to walk, only two handles obstruct the view in front, allowing the toddler to observe all road conditions ahead. The wide field of vision can psychologically reduce the toddler's fear of unknown road conditions when learning to walk. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall rear view structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall front structure of the present invention;

[0038] Figure 3 for Figure 1 Exploded view of the structure in region A;

[0039] Figure 4 for Figure 2 Enlarged view of region B in the middle;

[0040] Figure 5 for Figure 2 Explosion-proof diagram of the C region structure;

[0041] Figure 6 for Figure 5 Schematic diagram of close cooperation in region D;

[0042] Figure 7 This is a schematic diagram of the hip protection system.

[0043] Figure 8 for Figure 7 Exploded view of the structure in region E;

[0044] Figure 9 A schematic diagram showing the working range of the leg protection system, hip protection system, and braking components;

[0045] Figure 10 A schematic diagram of the overall structure when a child is wearing a seatbelt;

[0046] Figure 11 This is a schematic diagram of the overall structure when used as a handcart;

[0047] Figure 12 This is a block diagram of the principle.

[0048] Figure labeling: 1. Backrest main body 11. Seat belt 12. Telescopic push-pull rod 13. Infrared distance sensor 14. Display screen 2. Side main body 21. Camera 111. Buckle 112. Accelerometer 113. Pedometer 3. Leg protection system 31. Leg support plate 311. Soft pad 32. First rack 33. Leg first gear 34. Limiting slide rail 4. Hip protection system 41. Hip gear 42. Back gear 43. Spring belt 44. Sliding chain 441. Roller 442. Long pad 443. Pin 444. Lock 45. Hip limiting slide rail 51. Front support leg 511. Universal wheel 512. Light 513. Speaker 514. Distance sensor 515. Photoresistor 52. Rear support leg 521. Fixed wheel 522. Speed ​​sensor 523. Brake component 6. Hand arm 61. Handle 7. Long knob. Detailed Implementation

[0049] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] See Figure 1-12 The present invention provides a fall-prevention intelligent toddler walker, comprising a walker body, a leg protection system 3, a hip protection system 4, a motion monitoring system, a control center, and a communication device.

[0052] The main body of the baby walker serves as a support frame surrounding the user's sides and rear, with a rolling assembly at its bottom. The main body includes a back body 1 located behind the user, side bodies 2 on both sides, two front support legs 51, and two rear support legs 52. The back body 1, the side bodies 2, and the two rear support legs 52 are an integral structure. The two rear support legs 52 are located on both sides below the back body 1, and the two front support legs 51 are respectively installed at the front ends of the left and right side bodies 2. The back body 1 has an internal cavity, and a semi-circular groove is formed along the lower inner side of the back body 1. The two ends of the semi-circular groove extend to the side bodies 2 on both sides, and the semi-circular groove communicates with the internal cavity, serving as the outlet when the buttock protection system 4 is activated.

[0053] The backrest 1 also includes a safety belt 11, a retractable push-pull rod 12, and a display screen 14. The safety belt 11 is installed on the backrest 1 at waist height, and the two ends of the safety belt 11 are connected by buckles 111. The retractable push-pull rod 12 is installed on the upper back of the backrest 1 and is used to use the walker as a pushcart. The display screen 14 is installed on the upper surface of the backrest and is used to display information such as the walking speed of the smart walker (i.e., the user's walking speed), the distance traveled, the number of steps, and how many times the child tends to fall forward or backward during use.

[0054] The rolling assembly includes two casters 511, two fixed wheels 521, and two brake components 523. Two casters 511 are mounted on the lower ends of the two front support legs 51, respectively. Two fixed wheels 521 are mounted on the lower ends of the two rear support legs 52, respectively. Two brake components 523 are mounted on the two fixed wheels 521, respectively. Each brake component 523 includes a brake pad and a brake cable, and is driven by a brake motor. The brake motor receives signal commands from the control center and controls the friction between the brake pad and the fixed wheel 521 by tightening and loosening the brake cable, thereby locking the fixed wheel 521 or increasing its rotational resistance. The mounting structure between the brake pad, brake cable, and fixed wheel 521 is conventional technology in the field.

[0055] Each of the two front support legs 51 is equipped with a light 512 and a speaker 513. The light 512 is used to provide illumination when the surrounding environment is too dark. The speaker 513 is used to play sounds. When the speaker is working normally, it will periodically play pleasant sounds such as music, the guardian's greeting, and bell sounds to increase the fun. The speaker 513 will sound an alarm when the child shows signs of falling or is too close to an obstacle to remind the guardian to take care of the child.

[0056] The toddler intelligent walker also includes a hand arm 6 and a handle 61. There are two hand arms 6, which are respectively installed on the front end of the side body 2 on the left and right sides. The handle 61 is connected to the hand arm 6 through a rotating shaft. The rotating shaft is a multi-position rotating shaft, which can make the handle 61 lock in multiple angle positions and keep it from easily loosening, so as to adapt to the gripping habits of different users.

[0057] Mounting holes are provided on the hand arm 6, front support leg 51, and side body 2. The three are fixed together by inserting a long knob 7 into the mounting holes. The long knob 7 includes a knob head and a rod. The rod of the long knob 7 has multiple axial toothed grooves. The mounting holes of the hand arm 6, front support leg 51, and side body 2 are all provided with teeth that match the toothed grooves of the long knob 7. By adjusting the angle of the hand arm 6 around the long knob 7, the teeth on the hand arm 6 can be engaged in different toothed grooves to achieve the height adjustment of the hand arm 6, so as to accommodate children of different heights and arm lengths. By adjusting the angle of the front support leg 51 around the long knob 7, the teeth on the support leg 51 can engage in different grooves, allowing for adjustable length of the entire vehicle and height of the seat after the hip protection system 4 is lowered, to accommodate children with different activity levels and walking habits. The long knob 7 runs through the front support leg 51 and the armrest 6, and engages tightly with the teeth of the same shape on the side body 2, fixing the front support leg 51 and armrest 6 to the side body 2. When not in use, the entire vehicle can be easily stored separately. Both side bodies 2 have grooves on their outer sides that match the shape of the armrest 6. When the armrest 6 is not in use, it can be rotated backward and retracted into the grooves on the outer side of the side body 2.

[0058] The leg protection system 3 is used to support the legs when a child falls forward. Two sets of the leg protection system 3 are symmetrically installed on the inner walls of the side main body 2 on both sides. The leg protection system 3 includes a first leg motor, a first leg gear 33, a limiting slide rail 34, a first rack 32, a leg support plate 31, and a soft pad 311. The first leg motor is embedded in the inner front end of the side main body 2. The first gear 33 mounted on its output shaft meshes with the first rack 32. The first rack 32 is inserted inside the limiting slide rail 34 and slides on the inner surface of the side main body 2 via the limiting slide rail 34. The limiting slide rail 34 has a lower front end and a higher rear end, with an inclined design. The leg support plate 31 is fixed in the corresponding groove on the inner side of the main body 2; the back of the leg support plate 31 is fixed to the outer end face of the first rack 32; the first motor drives the first gear 33 of the leg to rotate, which drives the first rack 32 to slide on the track of the limiting slide rail 34, thereby driving the leg support plate 31 to slide along the limiting slide rail 34, realizing the position switching control of the leg support plate 31 when it is in operation and when it is retracted; a soft pad 311 is installed on the upper surface of the leg support plate 31, which can cushion the impact when the user leans forward and falls, ensuring comfort when using the leg support plate; the first gear 33 of the leg and the first rack 32 are coated with lubricating oil to ensure that the friction between them is small and they can slide easily against each other.

[0059] When the leg protection system 3 is triggered, the first leg motor drives the first leg gear 33 to rotate, thereby causing the first rack 32 to move diagonally downward along the limiting slide rail 34, causing the leg support plate 31 to extend along the curved trajectory of the limiting slide rail 34, reacting quickly to support the child's legs before they fall forward; when the leg support plate 31 needs to retract, the first leg gear 33 rotates slowly in the opposite direction, and after the leg support plate 31 returns to its initial position along the trajectory, the first leg gear 33 locks, and the leg support plate 31 no longer slides easily. Figure 9 As shown, the leg support plate 31 can slide along the limiting slide rail 34 to the position indicated by the dotted line.

[0060] The hip protection system 4 is used to support the user's hips when a child falls backward. The hip protection system 4 includes a hip limiting slide rail 45, a sliding chain 44, a back gear 42, a spring belt 43, and a hip gear 41. There are two hip limiting slide rails 45, which are symmetrically installed on both sides of the back body 1 and extend into the side body 2 on both sides. There are two sliding chains 44, which are symmetrically installed on both sides within the hip limiting slide rails 45 and can slide along the hip limiting slide rails 45 from their retracted position (inside the back body 1) to their executed position (inside the side body 2). The sliding chains 44 and the hip limiting slide rails 45 are coated with lubricating oil to ensure low friction and easy sliding between them.

[0061] Two back gears 42 are installed as a group, symmetrically installed below the rails of the hip limiting slide rails 45 on both sides, and respectively mesh with the head positions of the sliding chains 44 on both sides in the retracted position; each back gear 42 is equipped with a back motor drive; there are 6 spring bands 43 arranged in parallel, with their two ends fixed to the sliding chains 44 on both sides respectively.

[0062] Two hip gears 41 are arranged as a set and are symmetrically installed below the tracks of the hip limit slide rails 45 on both sides, respectively meshing with the tail positions of the sliding chains 44 on both sides of the execution position; each hip gear 41 is equipped with a hip motor drive.

[0063] like Figure 7 As shown, when the hip protection system 4 is retracted, it is located in the cavity inside the back body 1, with the two back gears 42 locked and the sliding chain 44 fixed in position. When the hip protection system 4 is triggered, the back motor drives the back gears 42 to rotate, causing the sliding chains 44 on both sides to slide down along the hip limiting slide rail 45 and slide out from the semi-annular groove at the lower inner side of the back body 1. At the same time, the hip motor drives the hip gear 41 to rotate. Before the tails of the sliding chains 44 on both sides leave the back gears 42, their heads will engage with the hip gears 41 respectively. The two sets of gears rotate together, providing forward power to the sliding chains 44, allowing the sliding chains 44 to reach the foremost position. See [reference needed]. Figure 7 The position of the hip protection system 4 is shown by the dashed line. During this process, the distance between the sliding chains 44 on both sides widens, stretching the spring belt 43. The stretching of the spring belt 43 in the middle acts as a seat, reacting quickly before the child falls backward and catching his / her buttocks on the spring belt 43 to prevent him / her from falling.

[0064] like Figure 9 As shown, when the sliding chain 44 is extended, it can slide to the position indicated by the dotted line in the figure. In this state, the position of the hip gear 41 is exactly locked at the tail of the sliding chain 44. When the hip protection system 4 needs to be retracted, a set of hip gears 41 slowly rotates in the opposite direction, and the sliding chain 44 returns along the hip limit slide rail 45. Before the head of the sliding chain 44 leaves the hip gear 41, its tail will engage with the back gear 42. The two sets of gears rotate together. When the sliding chain 44 returns to the initial position on the right in the figure, the back gear 42 is just locked at the head of the sliding chain 44. A set of back gears 42 is locked, and the sliding chain 44 no longer slides easily.

[0065] The sliding chain 44 is always confined within the hip-limiting slide rail 45. The sliding chain 44 adopts an existing hollow pin chain, consisting of a pin 443, a roller 441, and a long washer 442. The long washer 442 on the inner side of the sliding chain 44 has a buckle 444 for fixing the spring belt 43. The back gear 42 rotates, actuating the rollers, and then engages with each roller in turn, thereby driving the entire chain to move. The teeth of the hip gear 41 and the back gear 42 are relatively short, and the tooth root is wider than the tooth tip. The front-to-back distance between the two sets of gears on the hip-limiting slide rail 45 is an integer multiple of the distance between the rollers 441, making it easy to get stuck between the two rollers 441 without causing blockage, and they can assist each other.

[0066] The motion monitoring system monitors the movement status of young children and transmits the data to the control center for processing. The motion monitoring system includes a camera 21, a distance sensor 514, an infrared ranging sensor 13, a speed sensor 522, an accelerometer 112, a step counting sensor 113, and a photoresistor 515. The camera 21 is embedded in the inner side of the side body 2 to observe the state of young children when they are learning to walk and to send the obtained images to the parents' handheld terminal in real time.

[0067] Multiple distance sensors 514 are linearly mounted around the two front support legs 51 in the left and right front directions. The distance sensor 514 mounted on the left front support leg is used to detect the distance of the walker to obstacles on the left and in front, and the distance sensor 514 mounted on the right front support leg is used to detect the distance of the walker to obstacles on the right and in front. When the distance is lower than the threshold of 0.5m, the distance sensor 514 sends a digital signal to the control center, and the braking component 523 operates slowly to gently stop the child from continuing to move and prevent the child from tripping due to excessive force.

[0068] The infrared ranging sensor 13 is embedded in the upper middle position of the back body 1 to monitor the distance between the user's back and the back body 1 in real time. Since it is embedded inside the back body 1 and does not protrude from the back body 1, it will not cause harm to the user's body. The control center can calculate the forward or backward speed of the child's back based on the real-time output distance difference. If the speed exceeds the set threshold speed, the control center will take action to activate the leg protection system 3 or the hip protection system 4.

[0069] Speed ​​sensor 522 is installed on one side of the rear support leg 52 to monitor the speed information of the fixed wheel 521. When the walker exceeds the set threshold speed, speed sensor 522 sends a digital signal to the control center, and brake component 523 runs slowly to gently stop the child from continuing to move and prevent the child from tripping due to excessive force.

[0070] Accelerometer 112 and step sensor 113 are inserted into the seat belt 11 and located next to the seat belt buckle 111. Accelerometer 112 monitors the acceleration of the child's waist in real time and compares it with the forward acceleration threshold and the backward acceleration threshold. The information is transmitted to the control center, which then issues action commands to the leg protection system 3 or the hip protection system 4. Step sensor 113 is used to monitor the number of steps the child takes and transmits the data to the control center, where it is displayed on the display screen 14.

[0071] Photoresistors 515 are installed on the two front support legs respectively. Photoresistors 515 monitor the light intensity of the surrounding environment of the walker in real time. When the light intensity is lower than the light threshold of 20 lux, a digital signal is sent to the control center and the lighting 512 is turned on. When the light intensity is higher than the threshold, the lighting 512 returns to the off state.

[0072] The control center collects data from the motion monitoring system and issues commands to the execution end. The control center is a microcontroller installed inside the intelligent walker. The leg protection system 3, hip protection system 4, brake component 523, lighting 512, audio 513, and display screen 14 are all connected to the control center and serve as execution ends, controlled by the control center.

[0073] The communication device is installed inside the smart walker and connected to the control center. It also connects to the handheld terminal via a wireless network to transmit information from the walker to the handheld terminal. Data on the display screen 14 and images captured by the camera 21 can be sent to the handheld terminal via the communication device.

[0074] Detailed instructions for use:

[0075] like Figure 10As shown, the user can wear the safety belt 11 to use this walker. The step counting sensor 113 on the safety belt 11 can record the number of steps the child takes during the learning process and display it on the display screen 14. Both the infrared distance sensor 13 and the accelerometer 112 are used to monitor whether the child has a tendency to fall. The infrared distance sensor 13 monitors and calculates the real-time relative speed between the child and the walker. When the relative speed is greater than the forward speed threshold, it is determined that the child has a tendency to fall forward; when the relative speed is greater than the backward speed threshold, it is determined that the child has a tendency to fall backward. The accelerometer 112 monitors the acceleration trend of the child while walking. When the measured acceleration is greater than the forward acceleration threshold, it is determined that the child has a tendency to fall forward; when the measured acceleration is greater than the backward speed threshold, it is determined that the child has a tendency to fall backward. If either the infrared distance sensor 13 or the accelerometer 112 determines that the child has a tendency to fall forward, the leg protection system 3 will activate, reacting quickly to support the child's legs before the child falls forward. If either the infrared distance sensor 13 or the accelerometer 112 determines that the child has a tendency to fall backward, the hip protection system 4 will activate, reacting quickly to support the child's hips before the child falls backward. After the child has resumed normal walking with the help of others or independently, the leg protection system 3 and the hip protection system 4 will only retract when both the infrared distance sensor 13 and the accelerometer 112 determine that the child has no tendency to fall.

[0076] The distance sensor 514 is used to determine the distance between the walker (i.e., the toddler) and the obstacle, and the speed sensor 522 is used to monitor the real-time speed of the walker. When the distance sensor 514 detects that the distance is below the threshold of 0.5m or the speed sensor 522 detects that the speed is too fast, the braking component 523 operates slowly to gently stop the toddler from continuing to move.

[0077] When any one of the leg protection system 3, hip protection system 4, or brake component 523 is in operation, the speaker 513 will activate and announce the current abnormal condition of the child; when all three are in normal operation, the speaker 513 will resume normal operation.

[0078] The baby walker of this invention is relatively lightweight. When the child is not wearing the safety belt 11, they can use the handle 61 to pull the entire walker together by pushing with their hands. In this case, the infrared distance sensor 13 is used to determine whether the child is prone to falling. Alternatively, when the child is wearing the safety belt 11, they can use their hands and waist to pull the entire walker together by using the handle 61, thus improving their balance. In this case, the infrared distance sensor 13 and the accelerometer 112 are used together to determine whether the child is prone to falling, making the assessment more accurate and safer. As the child becomes more proficient at walking, the hand arm 6 can be retracted and rotated into the groove on the outside of the main body 2. With the safety belt on, the child can use their waist to pull the entire walker together, thus improving their abdominal strength and balance. In this case, the infrared distance sensor 13 and the accelerometer 112 are used together to determine whether the child is prone to falling.

[0079] like Figure 11 As shown, when the walker of this invention is used as a stroller, the retractable push-pull rod 12 is pulled out, the hip protection system 4 is lowered, and the user can sit on the spring belt 43 and pull the handle arm 6 according to... Figure 3 As shown in the assembly diagram, the armrest 6 is rotated backward into the groove on the outer side of the main body 2, without obstructing the child's forward view. At this point, the entire stroller can be used as a walker, suitable for parents to take their children out for play.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A fall-prevention intelligent walker for toddlers, characterized in that: It includes a walker body, a leg protection system (3), a hip protection system (4), a motion monitoring system, a control center, and a communication device; the walker body serves as a support frame surrounding the user's sides and rear, and its bottom is equipped with a rolling component; The leg protection system (3) provides protective support for the user's legs during a fall; The hip protection system (4) provides protection and support for the user's hips during a fall; The motion monitoring system monitors the user's motion status and transmits the data to the control center for processing. The control center collects data from the motion monitoring system and issues commands to the execution terminal. The communication device is connected to the control center and connects to the handheld terminal via a wireless network to transmit information from the walker to the handheld terminal. The walker body includes a back body (1) located behind the user, side bodies (2) located on both sides, two front support legs (51) and two rear support legs (52). The back body (1), the side bodies (2) and the rear support legs (52) are an integral structure. The two rear support legs (52) are located on both sides below the back body (1). The two front support legs (51) are respectively installed at the front end of the side bodies (2) on the left and right sides. The back body (1) has an internal cavity to accommodate the hip protection system (4) when it is folded up. A semi-circular groove is opened on the lower inner side of the back body. The two ends of the semi-circular groove extend to the side bodies (2) on both sides. The semi-circular groove communicates with the internal cavity and serves as the outlet when the hip protection system (4) is activated. The leg protection system (3) consists of two sets, symmetrically installed on the inner side of the side body (2) on both sides. The leg protection system (3) includes a first leg motor, a first leg gear (33), a limiting slide rail (34), a first rack (32), and a leg support plate (31). The first leg motor is installed on the inner front end of the side body (2), and the first gear (33) installed on its output shaft meshes with the first rack (32). The first rack (32) is slidably installed on the inner side of the side body (2) through the limiting slide rail (34). The leg support plate (31) is installed on the outer end face of the first rack (32). The first motor drives the first gear (33) and drives the first rack (32) to slide along the limiting slide rail (34) at an angle, thereby completing the position switching control of the leg support plate (31) when it is in operation and when it is retracted. A soft pad (311) is installed on the front end of the upper surface of the leg support plate (31) to ensure comfort when supporting the legs.

2. The fall-prevention intelligent walker for toddlers according to claim 1, characterized in that: The hip protection system (4) includes a hip limiting slide rail (45), a sliding chain (44), a back gear (42), a spring belt (43), and a hip gear (41). The two hip limiting slide rails (45) are symmetrically installed on the inside sides of the back body (1) and extend to the inside of the side bodies (2) on both sides. The two sliding chains (44) are symmetrically installed on the two hip limiting slide rails (45) and can slide along the hip limiting slide rails (45) from its retracted position, i.e., inside the back body (1), to the execution position, inside the side body (2). Two back gears (42) are a set and are symmetrically installed below the rails of the two hip limiting slide rails (45) on both sides, respectively meshing with the head positions of the sliding chains (44) on both sides in the retracted position; the back gears (42) are driven by the back motor; several spring bands (43) are arranged in parallel, and their two ends are respectively fixed to the sliding chains (44) on both sides. The two hip gears (41) are a set and are symmetrically installed below the tracks of the hip limiting slide rails (45) on both sides, respectively meshing with the tail positions of the sliding chains (44) on both sides of the execution position; the hip gears (41) are driven by the hip motor; The hip protection system (4) is located in the cavity inside the back body 1 when it is retracted; when triggered, the back motor drives the back gear (42) to rotate, which drives the sliding chains (44) on both sides to slide down along the hip limit rail (45). At the same time, the hip motor drives the hip gear (41) to rotate, which continues to drive the sliding chains (44) to slide down into the side body (2); at the same time, the spring belt (43) supports the user's hips to prevent falls.

3. The fall-prevention intelligent walker for toddlers according to claim 2, characterized in that: The sliding chain (44) is a hollow pin chain, consisting of a pin (443), a roller (441), and a long washer (442). The long washer (442) on the inner side of the sliding chain (44) has a buckle (444) for fixing the spring belt (43).

4. The fall-prevention intelligent walker for toddlers according to claim 1, characterized in that: The back body (1) also includes a safety belt (11), a retractable push-pull rod (12), and a display screen (14); the safety belt (11) is installed on the back body (1) to restrict the user's range of motion and for protection; the retractable push-pull rod (12) is installed on the upper back of the back body (1) for use as a pushcart; the display screen (14) is installed on the upper surface of the back body for displaying the walking speed, distance traveled, number of steps, and number of times the child is expected to fall during use; The two front support legs (51) are equipped with a lighting lamp (512) and a speaker (513). The lighting lamp (512) is used to provide illumination when the surrounding environment is too dark. The speaker (513) is used to play music, the guardian's greeting, and the sound of a bell.

5. The fall-prevention intelligent walker for toddlers according to claim 4, characterized in that: The rolling assembly includes casters (511), fixed wheels (521), and brake components (523). Two casters (511) are respectively installed on the lower ends of two front support legs (51), and two fixed wheels (521) are respectively installed on the lower ends of two rear support legs (52). Two brake components (523) are respectively installed on two fixed wheels (521), and the brake components (523) are driven by a brake motor.

6. The fall-prevention intelligent walker for toddlers according to claim 4, characterized in that: The motion monitoring system includes a camera (21), a distance sensor (514), an infrared distance sensor (13), a speed sensor (522), an accelerometer (112), a step counter (113), and a photoresistor (515). The camera (21) is embedded in the inner side of the side body (2) to observe the user's walking state. Multiple distance sensors (514) are mounted on the two front support legs (51) to determine the distance of the walker to obstacles in front and to the left and right. The infrared distance sensor (13) is embedded in the middle of the upper part of the back body (1) to... The distance from the user's back to the back body (1) is monitored in real time; the speed sensor (522) is installed on one side of the rear support leg (52) to monitor the real-time speed of the walker; the accelerometer (112) and the step sensor (113) are inserted on the safety belt (11), the accelerometer (112) is used to monitor the user's real-time acceleration, and the step sensor (113) is used to monitor the number of steps the user takes; the two photoresistors (515) are respectively installed on the two front support legs (51) to monitor the ambient light intensity of the walker and are used in conjunction with the lighting lamp (512).

7. The fall-prevention intelligent walker for toddlers according to claim 1, characterized in that: The intelligent toddler walker also includes hand arms (6) and handles (61). The two hand arms (6) are respectively installed at the front end of the side body (2) on the left and right sides; the handles (61) are connected to the hand arms (6) through a pivot. The armrest (6), front support leg (51) and side body (2) are all provided with mounting holes, and the three are fixed together by inserting a long knob (7) into the mounting holes. The long knob (7) includes a knob head and a rod. The rod of the long knob (7) is provided with multiple axial grooves. The mounting holes of the armrest (6), front support leg (51) and side body (2) are all provided with teeth that match the grooves of the long knob (7). By adjusting the angle of the armrest (6) around the long knob (7), the teeth on the armrest (6) can be inserted into different grooves to adjust the height of the armrest (6). By adjusting the angle of the front support leg (51) around the long knob (7), the teeth on the support leg (51) can be inserted into different grooves to adjust the overall length of the vehicle and the height of the seat formed after the hip protection system (4) is lowered.

8. The fall-prevention intelligent walker for toddlers according to claim 4, characterized in that: The control center is a microcontroller. The leg protection system (3), hip protection system (4), brake component (523), lighting (512), audio (513), and display screen (14) are all connected to the control center and are the execution end, controlled by the control center.

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