A baby crawling pattern training device

Abstract

The present invention belongs to a crawling training device, and specifically relates to a baby crawling mode training device, comprising a tray, a telescopic bracket, a main body, a limb transmission arm and a driving motor, wherein the tray comprises an upper body tray, a lower body tray and a rotating rod I, wherein the upper body tray and the lower body tray are connected via the rotating rod I, wherein the bottom of the rotating rod I is connected to one end of the telescopic bracket, and the other end of the telescopic bracket is fixedly connected to the main body, wherein the limb transmission arm is arranged on the main body and connected to the driving motor, wherein the main body is further provided with a guide device located on one side of the limb transmission arm, and wherein casters are arranged at the bottom of the main body, wherein the present invention provides two trays to adapt to the movement law of the baby's body when crawling; wherein the limb driving device and the guiding device are provided to drive the baby's arms and legs to realize crawling training; wherein the guiding device is provided to enable the limb driving arm to move autonomously within a certain range of movement, and to adapt to the range of free movement of the baby's hands and feet.

Description

Technical Field

[0001] The invention relates to crawling training equipment, in particular to a baby crawling mode training equipment. Background Art

[0002] Crawling is a milestone in the growth and development of infants' motor functions. It is an alternating movement of the limbs, closely related to the development of walking movements, an important stage in the transition of humans to standing and walking, and a necessary process of motor development to reach standing. In the treatment of cerebral palsy in children, special attention is paid to the training of crawling movements.

[0003] Typical crawling movement is to stand on the ground with hands and knees, lift up shoulders and pelvis, and keep the trunk in a horizontal spatial position with four points of support. At least one limb leaves the support surface, and the alternating movement of the four limbs pushes the body forward. That is, the crawling movement must be an alternating, repeated, and overall forward movement of the four limbs.

[0004] Humans generally adopt the rear-cross type, that is, if the right upper limb is extended first, the order of extending the limbs forward during crawling is right upper limb → left lower limb → left upper limb → right lower limb → right upper limb, which is a form of movement that crosses the opposite sides and moves forward.

[0005] When newborns are 9 to 10 months old, trunk rotation and balance reactions in the four-point support position begin to develop. At this time, the child can bring the two knees close together and crawling movements in the alternating hand-knee four-point position begin. The typical manifestation of children with cerebral palsy is that at 9 to 10 months of age, trunk control and crawling movements cannot appear normally according to the developmental milestone.

[0006] Children with cerebral palsy have different degrees of illness and their crawling movements also exhibit various patterns. Most of them cannot fully alternate the movements of the lower limbs. After achieving a four-point support position, the crawling movement pattern they present is often a bunny-hop crawl with the upper limbs moving forward, the waist flexed, and both lower limbs moving forward at the same time, or a belly crawl, which is a pattern of using the upper limbs to pull the lower limbs and the trunk forward.

[0007] This crawling disorder, if not properly guided and learned, will seriously affect future intellectual and physical development, as well as motor self-control ability. In severe cases, the child cannot grasp things with his hands, walk with his feet, and some cannot even turn over, sit up, or stand.

[0008] At present, limb crawling training is generally assisted by adults, but this method is time-consuming and laborious and has low efficiency. At the same time, there are also some devices for infant limb training, but they all have certain problems. They are inconvenient to use, have poor effects, and are not comfortable, which makes infants resist during training, seriously affecting the training effect. The patent "A baby crawling training machine and its control system and control method" with publication number CN106621202B discloses a baby crawling training machine, but the training machine has a large and complex structure. When used, it is connected to the baby's trunk through a rope, and the force-bearing surface is small, so that the baby will have a tightening force when being pulled by the rope, and during training, the baby's trunk is dragged on the ground for friction, which seriously affects the baby's comfort. Over time, it may even cause abrasions to the skin of the baby's trunk. The training machine cannot be adjusted according to the size of the baby. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide a baby crawling mode training device which provides multiple training methods, has good training effects and is comfortable to use.

[0010] The contents of the present invention include a tray, a telescopic bracket, a main body, a four-limb transmission arm and a driving motor. The tray includes an upper body tray, a lower body tray and a rotating rod I. The upper body tray and the lower body tray are connected by the rotating rod I. The bottom of the rotating rod I is connected to one end of the telescopic bracket, and the other end of the telescopic bracket is fixedly connected to the main body. The four-limb transmission arm is arranged on the main body and connected to the driving motor. The main body is also provided with a guide device located on one side of the four-limb transmission arm, and casters are arranged at the bottom of the main body.

[0011] Furthermore, the tray also includes an arm tray, a hip tray, a rotating rod II and a rotating rod III. The arm tray is connected to the upper body tray via the rotating rod II, the hip tray is connected to the lower body tray via the rotating rod III, and a rotating drive device is provided at the lower ends of the arm tray and the hip tray.

[0012] Furthermore, the limb transmission arm includes a driving rod, a transmission rod and a binding belt, the driving rod, the transmission rod and the binding belt are respectively connected through joint bearings, and the driving rod is connected to the output end of the driving motor.

[0013] Furthermore, the guide device includes a guide support frame and a guide cylinder, one side of the guide support frame is fixedly arranged on the main body, and the other side is fixedly connected to the guide cylinder, and the transmission rod is arranged through the guide cylinder.

[0014] Furthermore, the binding strap comprises a plastic part and a cloth part, an outer spherical surface of a joint bearing is arranged on one side of the plastic part, cloth parts are arranged on both sides of the plastic part, and corresponding Velcro strips are arranged on the cloth parts on both sides.

[0015] Furthermore, arc openings are provided on both sides of the arm tray and the hip tray.

[0016] Furthermore, the entire width of the tray is provided with a certain curvature.

[0017] Furthermore, the casters include two hidden casters and two retractable side wheels, the two hidden casters are arranged on the front and rear sides of the bottom of the main body, and the two retractable side wheels are arranged on the two side surfaces of the main body.

[0018] Furthermore, a caster accommodating cavity corresponding to the hidden caster is provided at the bottom of the main body, a locking device is also provided on the hidden caster, and the retractable side wheel is connected to the side of the main body through an adjusting bolt.

[0019] Furthermore, the rotating motor and the driving motor are both connected to a mode generator and a battery.

[0020] The beneficial effects of the present invention are as follows: two trays are provided for supporting the hip and chest of the child, so that different parts can be supported respectively to train the muscle stability of another part. The present invention is also suitable for children who have just started training and have poor physical conditions, and is adapted to the movement patterns of the body when the baby crawls; by providing a telescopic rod, it can adapt to the training of children of different sizes and the same child at different stages; by providing a limb driving device and a guide device, the baby's arms and legs can be driven to achieve crawling training, and by providing a guide device, the limb driving arms can move autonomously within a certain range of movement, adapting to the range of free movement of the baby's hands and feet.

[0021] By providing an arm tray and a hip tray, the corresponding elbows or knees can be lifted when the baby crawls to prevent the elbows and knees from rubbing against the ground too much and damaging the skin; by providing the casters as two hidden casters and two retractable side wheels, the crawling mode training equipment can provide a variety of training modes; by providing a mode engine and a battery, the controllability and portability of the equipment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure from a first angle of the present invention.

[0023] Figure 2 It is the front view of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure from a second angle of the present invention.

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Figure 5It is a structural schematic diagram of the main part of the present invention.

[0027] In the figure, 1 tray, 11 upper body tray, 12 lower body tray, 13 arm tray, 14 hip tray, 15 rotating rod I, 16 rotating rod II, 17 rotating motor I, 18 rotating rod III, 19 rotating motor II, 2 limb transmission arms, 21 drive motor, 22 drive rod, 23 transmission rod, 24 guide support frame, 25 guide cylinder, 26 joint bearing I, 27 strap, 28 joint bearing II, 29 Velcro, 3 main body, 31 installation cavity, 32 hidden caster, 33, caster accommodating cavity, 34 locking bolt, 35 locking through hole, 36 retractable side wheel, 37 adjustment bolt, 4 electric push rod, 5 mode engine, 6 battery. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 5 As shown, the present invention includes a tray 1, a telescopic bracket, a main body 3, a limb transmission arm 2 and a driving motor 21, the tray 1 includes an upper body tray 11, a lower body tray 12 and a rotating rod Ⅰ15, the upper body tray 11 and the lower body tray 12 are connected by the rotating rod Ⅰ15, the bottom of the rotating rod Ⅰ15 is connected to one end of the telescopic bracket, and the other end of the telescopic bracket is fixedly connected to the main body 3, the limb transmission arm 2 is arranged on the main body 3 and connected to the driving motor 21, the main body 3 is located on one side of the limb transmission arm 2 and is also provided with a guide device, and the bottom of the main body 3 is provided with casters.

[0029] By providing the upper body tray 11 and the lower body tray 12, when the baby is doing crawling training, the upper body tray 11 and the lower body tray 12 can rotate with the baby's chest and hips, so that different parts can be supported respectively to train the muscle stability of another part. It can also be suitable for children who have just started training and have poor physical conditions, and can adapt to the movement rules of the baby's body when crawling, reduce the friction between the baby and the tray 1 when crawling, damage the baby's skin, affect the baby's use experience, and increase the baby's acceptance of the crawling mode training equipment; by providing a telescopic bracket, it is easy to adjust the height of the tray to adapt to the training of babies of different body shapes; By setting up the limb transmission arms 2, it is used to drive the regular movement of the baby's hands and feet to achieve crawling movement. The baby crawls through the drive of the limb transmission arms 2 to exercise muscle strength. Over time, muscle memory will be generated, and the baby will learn to crawl independently, thereby restoring the baby's crawling ability; by setting up the guide device, the limb transmission arms 2 can move independently within a certain range of movement to adapt to the range of free movement of the baby's hands and feet. Compared with the transmission arms with rigid drive and fixed motion trajectory, this structure is softer and less harmful to the baby; by setting casters, two training modes, static and mobile, are provided, and different training methods are used for different situations.

[0030] Among them, the telescopic bracket preferably adopts an electric push rod 4, which is convenient and quick to adjust. The electric push rod 4 is gently adjusted. The baby can be placed on the tray before adjustment, making it easier and more accurate to adjust the height; four limb transmission arms 2 and drive motors 21 are each provided with four, which are respectively arranged on the four sides of the main body 3, and the interior of the main body is hollowed out to provide an installation groove for accommodating the drive motor 21; the rotating rod Ⅰ15 is a torsion bar, and its structure is similar to the torsion bar of the dragon board. The torsion bar structure is safe and reliable, and the rotational motion is gentle, which further improves the safety performance. The outer shell of the torsion bar is fixedly connected to the top of the electric push rod 4, and the bottom of the electric push rod 4 is arranged in the middle position of the main body 3.

[0031] The tray 1 also includes an arm tray 13, a crotch tray 14, a rotating rod II 16 and a rotating rod III 18. The arm tray 13 is connected to the upper body tray 11 through the rotating rod II 16, and the crotch tray 14 is connected to the lower body tray 12 through the rotating rod III 18. The lower ends of the arm tray 13 and the crotch tray 14 are provided with a rotating drive device, and the rotating drive device and the mode engine 5 are provided. By arranging the arm tray 13 and the crotch tray 14, during the baby mode training, when the hands or feet on either side are lifted, the corresponding arm tray 13 and the crotch tray 14 are tilted in the same direction to achieve the action of lifting the arms and crotch, so that the baby's hands or feet can be off the ground when they are lifted and crawled forward, preventing abrasions on the elbows and knees, and more in line with the actual situation of baby crawling training, improving the training effect, such as Figure 2 As shown, the rotary drive device includes a rotary motor Ⅰ17 and a rotary motor Ⅱ19. The rotary motor Ⅰ17 can be arranged at the bottom of the upper body tray 11. The output end of the rotary motor Ⅰ17 is provided with a driving gear, and the bottom of the arm tray 13 is correspondingly provided with a driven gear. Similarly, the rotary motor Ⅰ17 can also be arranged at the bottom of the arm tray 13, and the bottom of the upper body tray 11 is correspondingly provided with a driven gear. The installation and setting method of the rotary motor Ⅱ19 is the same as that of the rotary motor Ⅰ17. Of course, in order to determine the rotation angle of the arm tray 13 and the crotch tray 14, so that the baby's elbows and knees can be accurately lifted every time the baby's hands and feet move, a horizontal sensor can also be provided on the arm tray 13 and the crotch tray 14. The horizontal sensor is electrically connected to the mode engine 5 to control the arm tray 13 and the crotch tray 14 to rotate to a specified angle relative to the horizontal, so as to lift the baby's elbows and knees off the ground when the baby crawls.

[0032] The limb transmission arm 2 includes a driving rod 22, a transmission rod 23 and a strap 27, wherein the driving rod 22 is connected to the output end of the driving motor 21, and the driving rod 22 is connected to the output rod of the driving motor 21, and the output rod of the driving motor extends to the outside of the main body 3 through the mounting groove inside the main body 3, and the driving rod 22 is fixedly arranged at the end of the output rod and is perpendicular to the output rod, wherein the driving rod 22 and the transmission rod 23 are connected through the joint bearing I 26, and the transmission rod 23 is connected to the strap 27 through the joint bearing II 28. By setting the joint bearing, the strap 27 has a certain range of autonomous activity during driving, so that the baby training trajectory will not be too rigid, which is more conducive to the baby crawling movement; the driving motor 21 is a servo motor, and the angle control is precise.

[0033] The guide device includes a guide support frame 24 and a guide cylinder 25, both of which are arranged on the outside of the main body 3 relative to the driving rod 22. One side of the guide support frame 24 is fixedly arranged on the main body, and the other side is fixedly connected to the guide cylinder 25. The transmission rod 23 is arranged through the guide cylinder 25. The guide cylinder 25 limits the range of autonomous movement of the transmission rod 23 to prevent the range from being too large, which is not conducive to the driving of the driving motor 21 and affects the effect of driving the baby's hands and feet.

[0034] The strap 27 includes a plastic part and a cloth part. The outer spherical surface of a joint bearing II 28 is provided on one side of the plastic part of the strap 27. The inner spherical surface of a joint bearing II 28 corresponding to the outer spherical surface of the joint bearing II 28 is provided on the side of the strap 27 corresponding to the transmission rod 23. Cloth parts are provided on both sides of the plastic part. In order to improve the comfort of fitting and reduce the risk of the strap 27 being driven to pull the limbs, the cloth part is wider than the plastic part to improve comfort. The cloth parts on both sides are provided with corresponding Velcro 29. The baby's limbs are fitted and fixed by the Velcro 29. The installation is quick and the tightness is very easy to adjust.

[0035] In order to improve the comfort of the baby, arc openings are provided on both sides of the arm tray 13 and the crotch tray 14, and the baby's arms and crotch are supported by the arc openings.

[0036] In order to make the tray 1 fit the baby's torso better, the tray 1 is provided with a certain curvature in the width direction.

[0037] In order to increase the training mode, the casters include two hidden casters 32 and two retractable side wheels 36. The two hidden casters 32 are arranged on the front and back sides of the bottom of the main body 3, and the two retractable side wheels 36 are arranged on the two sides of the main body 3.

[0038] When conducting mobile mode training, the hidden casters 32 and the retractable side wheels 36 are both in working condition, and the main body 3 moves with the baby's crawling, which is suitable for use when there are accompanying personnel; when conducting static mode training, the hidden casters 32 and the retractable side wheels 36 are both in a retracted state, and protective equipment is installed on the baby's hands and feet, and the baby conducts crawling training in situ, which is suitable for training when the accompanying personnel leave for a short time; when exercising the baby's arm and foot strength training, the retractable side wheels are retracted, and the hidden casters 32 work as usual, and the main body is supported by the baby's feet and hand strength, thereby achieving the training of the baby's arm and foot strength.

[0039] A caster accommodating cavity 33 corresponding to the hidden caster 32 is provided at the bottom of the main body 3, and a rotating shaft is provided in the caster accommodating cavity 33. The hidden caster 32 is arranged on the rotating shaft, and a locking bolt 34 is fixedly provided on the rotating shaft. Two locking through holes 35 are correspondingly provided on the hidden caster 32. The two locking through holes 35 are 90° to each other, respectively corresponding to the two working states of the hidden caster 32 extending and retracting. The retractable side wheel 36 is connected to the side of the main body 3 by an adjusting bolt 37. When adjusting the retractable side wheel 36, first unscrew the adjusting bolt 37, adjust the retractable side wheel to a suitable position, and then tighten it to fix it.

[0040] In order to improve the automation and convenience of the pattern training device, the rotating motor and the driving motor 21 are both connected to the pattern engine 5 and the battery 6. Figure 5 As shown, the mode engine 5 and the battery 6 are both arranged in the hollow part of the main body 3. The mode engine 5 can drive the limb transmission arms 2 to work independently or in coordination, and can control the speed and rotation angle of the driving motor, so as to realize the targeted training of the upper limbs or lower limbs alone, and can also perform linkage training on the limbs of the child to enhance the coordination of the child's crawling mode.

[0041] The specific working principle of the present invention is as follows: When conducting limb linkage training, the baby crawling action includes four steps: ①, place the baby's corresponding upper body tray 11 and lower body tray 12, and place the arms and hips correspondingly at the arc opening, and fix the baby's arms and thighs with straps 27 respectively. ②, the mode engine 5 first controls the driving motor 21 at the left arm to rotate at an angle, the driving rod 22 drives the transmission rod 23 to move forward, and the strap 27 drives the baby's arm to move forward, ③, then the mode engine 5 controls the driving motor 21 at the right foot to rotate at an angle, drives the strap 27 at the right foot to retract and drive the left foot to move forward, at this time, the main body 3 slides forward a distance with the baby, and the baby's right hand and left foot are in the initial state, ④, the mode engine 5 controls the driving motor 21 at the right arm to rotate at an angle, the driving rod 22 drives the transmission rod 23 to move forward, and the strap 27 drives the baby's right arm to move forward, ⑤, the mode engine 5 controls the driving motor 21 at the left foot to rotate at an angle, the driving rod 22 drives the transmission rod 23 to move forward, and the strap 27 drives the baby's left foot to move forward, at the same time, the main body slides forward with the baby's torso, and the baby's right hand and left foot return to the initial state, and this reciprocates.

[0042] While the driving motor is driving, the mode engine 5 drives the corresponding rotating motor I17 and rotating motor II19 to rotate, driving the arm tray 13 or the crotch tray 14 to tilt horizontally, with the tilting direction toward the side of the moving driving motor, lifting the moving arm or foot to prevent the arm or foot from rubbing against the ground during movement and damaging the baby's skin.

[0043] By setting the casters, the mobile and static training modes can also be controlled. When conducting mobile mode training, the hidden casters 32 and the retractable side wheels 36 are both in working condition, and the main body 3 is trained along with the baby's crawling, which is suitable for use when there are accompanying personnel; when conducting static mode training, the hidden casters 32 and the retractable side wheels 36 are both in a retracted state, and protective equipment is installed on the baby's hands and feet, and the baby performs crawling training in situ, which is suitable for training when the accompanying personnel leave for a short time; when training the baby's arm and foot strength, the retractable side wheels are retracted, and the main body is supported by the baby's feet and hand strength, thereby achieving the training of the baby's arm and foot strength.

Claims

1. A baby crawling pattern training device, characterized in that: The invention comprises a tray (1), a telescopic bracket, a main body (3), a four-limb transmission arm (2) and a driving motor (21), wherein the tray (1) comprises an upper body tray (11), a lower body tray (12) and a rotating rod I (15), wherein the upper body tray (11) and the lower body tray (12) are connected via the rotating rod I (15), wherein the bottom of the rotating rod I (15) is connected to one end of the telescopic bracket, and the other end of the telescopic bracket is fixedly connected to the main body (3), wherein the four-limb transmission arm (2) is arranged on the main body (3) and connected to the driving motor (21), wherein the main body (3) is further provided with a guide device located on one side of the four-limb transmission arm (2), and wherein casters are arranged at the bottom of the main body (3); The tray (1) further comprises an arm tray (13), a crotch tray (14), a rotating rod II (16) and a rotating rod III (18); the arm tray (13) is connected to the upper body tray (11) via the rotating rod II (16); the crotch tray (14) is connected to the lower body tray (12) via the rotating rod III (18); and a rotating drive device is provided at the lower ends of the arm tray (13) and the crotch tray (14).

2. The baby crawling pattern training device according to claim 1, characterized in that: The limb transmission arm (2) comprises a driving rod (22), a transmission rod (23) and a binding belt (27); the driving rod (22), the transmission rod (23) and the binding belt (27) are respectively connected via joint bearings; and the driving rod (22) is connected to an output end of a driving motor (21).

3. The baby crawling pattern training device according to claim 2, characterized in that: The guide device comprises a guide support frame (24) and a guide cylinder (25); one side of the guide support frame (24) is fixedly arranged on the main body, and the other side is fixedly connected to the guide cylinder (25); the transmission rod (23) is arranged through the guide cylinder (25).

4. The baby crawling pattern training device according to claim 2, characterized in that: The binding strap (27) comprises a plastic portion and a fabric portion, wherein the outer spherical surface of a joint bearing is provided on one side of the plastic portion, and fabric portions are provided on both sides of the plastic portion, wherein the fabric portions on both sides are provided with corresponding Velcro strips (29).

5. The baby crawling pattern training device according to claim 1, characterized in that: Arc openings are provided on both sides of the arm tray (13) and the crotch tray (14).

6. The infant crawling pattern training device according to claim 5, characterized in that: The tray (1) is provided with a certain curvature in the width direction as a whole.

7. The baby crawling pattern training device according to any one of claims 1 to 6, characterized in that: The casters include two hidden casters (32) and two retractable side wheels (36); the two hidden casters (32) are arranged on the front and rear sides of the bottom of the main body (3); and the two retractable side wheels (36) are arranged on the side surfaces of the main body (3).

8. The infant crawling pattern training device according to claim 7, characterized in that: The bottom of the main body (3) is provided with a caster accommodating cavity (33) corresponding to the hidden caster (32); the hidden caster (32) is also provided with a locking device; and the retractable side wheel (36) is connected to the side of the main body (3) via an adjusting bolt (37).

9. The infant crawling pattern training device according to claim 1, characterized in that: The driving motor (21) is connected to a mode engine (5) and a battery (6).

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