CN115634420A - Child physical training device and training method - Google Patents

Abstract

The invention relates to a physical training device for children, which comprises a moving component and a protection component, wherein the upper end of the moving component is fixedly provided with the protection component, the children can train the flexibility of lower limbs by treading a pedal rotating component, and a transmission chain belt synchronously drives a reciprocating top-pulling component to realize the up-and-down reciprocating motion, so that the protection component can finally swing back and forth, the courage and the body balance capacity of the children can be trained, meanwhile, the physical training device has the effect of 'rocking car', and the training interestingness is increased; adjust the height through flexible setting element in order to adapt to the children's of certain age bracket height, the foot can be comfortable when making it sit the buffering and hold carrier step on the piece is rotated to the pedal, through the front and back protection piece that sets up and side protection piece can carry out comprehensive safety protection to children.

Description

Child physical training device and training method

Technical Field

The invention relates to the technical field of physical training devices, in particular to a device and a method for training physical training of children.

Background

Physical fitness is the basic athletic ability of a human body expressed by sports qualities such as strength, speed, endurance, coordination, flexibility and sensitivity, and can be divided into two levels of healthy physical fitness and competitive physical fitness according to the expression and the action of physical fitness in different crowds. Healthy physical ability refers to the functional abilities of organ systems that are essential to any population, while being the basis for competitive physical ability.

For children, proper physical training is the basis for providing healthy physical performance, 6-7 years old should teach basic movements of a large amount of coordination ability to children, comprehensively develop various proprioceptive abilities such as space sense, time sense, muscle strength control and the like, 7-10 years old should strengthen the training of reaction ability and high-frequency movement ability, start developing special coordination ability, cultivate rhythm sense, balance sense, space-time sense and muscle relaxation ability of the children, and cultivate some special abilities (ball sense, distance sense, instrument sense and the like).

The existing physical training equipment suitable for children has single functionality, and children easily lose exercise interest due to boring repeated actions when using special training equipment for physical training; general physical training equipment does not have comprehensive safety protection facilities to protect, and the adult only takes care of, and child is good at and attention ratio is more dispersed, probably has the condition of falling from the equipment to appear.

Disclosure of Invention

In order to solve the technical problem, the invention provides a physical training device for children.

The utility model provides a children physical training device, includes motion subassembly and protection component, motion subassembly upper end fixed mounting has protection component.

The motion subassembly includes unable adjustment base, fixed frame, pedal rotation piece, the fixed axle, reciprocal top draws piece, spacing branch, spring one and transmission chain belt, unable adjustment base upper end fixed mounting has fixed frame, fixed frame right side middle part rotates and is connected with pedal rotation piece, fixed frame left side middle part fixed mounting has the fixed axle, it is connected with reciprocal top and draws piece to rotate on the fixed axle, reciprocal top draws piece upper end to rotate and is connected with protection component, be connected with sliding fit's mode between reciprocal top drawing piece and the spacing branch, spacing branch right-hand member fixedly connected with protection component, spacing branch upper end fixedly connected with spring one and spring one set establish on reciprocal top drawing piece, reciprocal top draws and is connected through the transmission chain belt transmission between the piece and the pedal rotation piece.

The protection subassembly includes that single door support frame, flexible setting element, buffering hold carrier, front and back protection piece and side protection piece, unable adjustment base upper end fixed mounting has the single door support frame, and single door support frame upper end fixed mounting has flexible setting element, and flexible setting element upper end fixed mounting has the buffering to hold carrier, and the buffering holds and is provided with front and back protection piece on the carrier, and symmetrical fixed mounting has the side protection piece around on the front and back protection piece.

The first preferred technical scheme is as follows: the pedal rotates the piece and includes axis of rotation, driving sprocket one, connecting piece and running-board, and fixed frame right side middle part rotates and is connected with the axis of rotation, and fixed mounting has driving sprocket one in just being located fixed frame in the axis of rotation, and axis of rotation front and back end fixed mounting respectively has the connecting piece, keeps away from the one end fixed mounting of axis of rotation on the connecting piece and has the running-board.

The preferred technical scheme is as follows: reciprocating top draws piece and includes drive sprocket two, bellying, rotation connecting rod and cylinder connecting rod, rotates on the fixed axle and is connected with drive sprocket two, and the fixed bellying that is provided with in two front end left sides of drive sprocket rotates on the bellying and is connected with the rotation connecting rod, and the one end that the bellying was kept away from to the rotation connecting rod rotates and is connected with the cylinder connecting rod, is connected with sliding fit's mode between cylinder connecting rod and the spacing branch, is connected through the transmission chain belt transmission between drive sprocket two and the drive sprocket two.

The preferred technical scheme is three: the telescopic positioning piece comprises a fixed sleeve, a movable cylindrical rod, a clamping positioning piece and a rotating adjusting piece, the upper end of the single-door support frame is fixedly provided with the fixed sleeve, the movable cylindrical rod is connected in the fixed sleeve in a sliding fit mode, the upper end of the fixed sleeve is provided with the clamping positioning piece, the positioning clamping piece is sleeved on the movable cylindrical rod, and the rotating adjusting piece is arranged on the clamping positioning piece.

The preferable technical scheme is four: the buffering holds carrier and includes square backup pad, fixed accepting, turning block, seatpad and spring two, and removal cylinder pole upper end fixed mounting has square backup pad, and square backup pad middle part fixed mounting has fixed accepting, and fixed accepting is gone up to rotate and is connected with the turning block, turning block upper end fixedly connected with seatpad, and square backup pad upper end bilateral symmetry fixedly connected with spring two, two upper ends of spring are connected with the seatpad jointly.

The preferred technical scheme is five: front and back protection piece is including flexible accuse apart from one, take the fender and protect piece, the telescopic link, protection back and fixed connecting rod, the symmetry fixed mounting has flexible accuse apart from one around the seatpad lower extreme, the common fixedly connected with of a flexible accuse apart from one right-hand member takes the fender and protects the piece, flexible accuse apart from one left end fixed mounting has the telescopic link, the telescopic link left end is connected with the protection back jointly, be provided with the spring between telescopic link and the protection back, protection back lower extreme fixed mounting has the fixed connecting rod, the fixed connecting rod rotates between and is connected with the cylinder connecting rod.

The preferred technical scheme is six: the side protection piece comprises a second telescopic distance control piece, a connecting plate and a rotary protection piece, the second telescopic distance control piece is symmetrically and fixedly mounted at the front end and the rear end of the protection backrest, the connecting plate is fixedly mounted at one end, far away from the protection backrest, of the second telescopic distance control piece, and the rotary protection piece is connected to the connecting plate in a rotating mode.

In addition, the invention also provides a children physical training method, which comprises the following steps:

s1, before training: the adult simply explains the training method for the child, then leads the child to do simple stretching movement, then holds the child on the buffering bearing piece to sit well and well complete the whole protection work.

S2, in training: the children are holding and taking the fender guard piece, slowly trample earlier and step on pedal rotation piece, and along with pedal rotation piece rotates this moment, the buffering holds carrier and can carry out the side-to-side rocking of certain range, and children control the rotational speed that pedal rotation piece was rotated according to self impression and control buffering holds carrier and sway the frequency promptly, according to adaptability control exercise time.

S3, after training: the parents open the side protection piece to hold the child down, and then the left and right castors of the child kick the legs to relax the legs.

The invention has the following beneficial effects: 1. the invention provides a physical training device for children, which comprises a moving component and a protection component, wherein the upper end of the moving component is fixedly provided with the protection component, the children can train the flexibility of lower limbs by treading a pedal rotating component, and a transmission chain belt synchronously drives a reciprocating top-pulling component to realize up-and-down reciprocating motion, so that the protection component can finally swing back and forth, the gall and the body balance capacity of the children can be trained, meanwhile, the physical training device has the effect of 'rocking car', and the training interestingness is increased; adjust the height through flexible setting element in order to adapt to the children's of certain age bracket height, the foot can be comfortable when making it sit the buffering and hold carrier step on the piece is rotated to the pedal, through the front and back protection piece that sets up and side protection piece can carry out comprehensive safety protection to children.

2. The pedal rotating piece and the reciprocating top pulling piece are arranged in the invention, and the pedal is stepped on by feet to rotate in a winding way, so that the muscle strength and the flexibility of the lower limb are exercised in the winding process; the rotating force is transmitted through the transmission chain belt, so that the second transmission chain wheel and the second transmission chain wheel synchronously rotate, and the cylindrical connecting rod is finally reciprocated up and down.

3. According to the front and rear protection pieces and the side protection pieces, the supporting baffle protection pieces are pushed leftwards to a proper distance to be fixedly matched with the protection backrest so as to achieve the purpose of protecting the front and rear of the body of a child, and the distance between the rotary protection pieces and the two sides of the body of the child is adjusted according to the body type of the child through the telescopic distance control pieces so as to achieve the purpose of protecting.

4. The buffering bearing piece provided by the invention can perform a certain amplitude of left-right swing when being acted by the external force of the reciprocating top-pulling piece, and the amplitude of the left-right swing of the seat cushion is buffered by two pairs of springs, so that the effect of sitting and rocking the bicycle is achieved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic left-side view of the present invention.

Fig. 4 is a schematic top plan view of the present invention.

Fig. 5 is an enlarged view of the invention at M in fig. 1.

FIG. 6 is an enlarged view of the invention at N in FIG. 1.

In the figure: 1. a motion assembly; 11. a fixed base; 12. a fixed frame; 13. a pedal rotor; 131. a rotating shaft; 132. a first transmission chain wheel; 133. a connecting member; 134. a foot pedal; 14. a fixed shaft; 15. a reciprocating top-pulling member; 151. a second transmission chain wheel; 152. a protrusion member; 153. rotating the connecting rod; 154. a cylindrical connecting rod; 16. a limit strut; 17. a first spring; 18. a drive chain belt; 2. a guard assembly; 21. a single door support frame; 22. a telescopic positioning piece; 221. fixing the sleeve; 222. moving the cylindrical rod; 223. clamping the positioning piece; 224. rotating the adjusting member; 23. a buffer carrier; 231. a square support plate; 232. fixing the bearing piece; 233. rotating the block; 234. a seat cushion; 235. a second spring; 24. front and rear guards; 241. a first telescopic distance control part; 242. erecting a baffle guard; 243. a telescopic rod; 244. a protective backrest; 245. fixing the connecting rod; 25. a side guard; 251. a second telescopic distance control part; 252. a connecting plate; 253. the guard is turned.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a physical training device for children comprises a motion assembly 1 and a protection assembly 2, wherein the protection assembly 2 is fixedly installed at the upper end of the motion assembly 1.

Referring to fig. 1, the moving assembly 1 includes a fixed base 11, a fixed frame 12, a pedal rotating piece 13, a fixed shaft 14, a reciprocating top-pulling piece 15, a limit supporting rod 16, a first spring 17 and a transmission chain belt 18, the fixed frame 12 is fixedly installed at the upper end of the fixed base 11, the pedal rotating piece 13 is rotatably connected to the middle of the right side of the fixed frame 12, the fixed shaft 14 is fixedly installed at the middle of the left side of the fixed frame 12, the reciprocating top-pulling piece 15 is rotatably connected to the fixed shaft 14, the protection assembly 2 is rotatably connected to the upper end of the reciprocating top-pulling piece 15, the reciprocating top-pulling piece 15 is connected with the limit supporting rod 16 in a sliding fit manner, the protection assembly 2 is fixedly connected to the right end of the limit supporting rod 16, the first spring 17 is fixedly connected to the upper end of the limit supporting rod 16 and sleeved on the reciprocating top-pulling piece 15, and the reciprocating top-pulling piece 15 is in transmission connection with the pedal rotating piece 13 through the transmission chain belt 18; children step on the flexibility that the piece 13 rotated to train the low limbs through the foot, drive reciprocal top through drive chain 18 in step and draw piece 15 and realize reciprocating motion from top to bottom, finally make protection component 2 carry out the forward and backward swing for children temper the balance ability when training low limbs strength.

Referring to fig. 1, the protection assembly 2 includes a single door supporting frame 21, a telescopic positioning element 22, a buffering supporting element 23, front and rear protection elements 24 and side protection elements 25, the single door supporting frame 21 is fixedly installed at the upper end of the fixed base 11, the telescopic positioning element 22 is fixedly installed at the upper end of the single door supporting frame 21, the buffering supporting element 23 is fixedly installed at the upper end of the telescopic positioning element 22, the buffering supporting element 23 is provided with the front and rear protection elements 24, and the side protection elements 25 are symmetrically and fixedly installed on the front and rear protection elements 24; the height of the telescopic positioning element 22 is adjusted to fit the height of a child of a certain age, so that the child can comfortably step on the pedal rotating element 13 when sitting on the buffer bearing element 23, and the child is protected by the front and rear protecting elements 24 and the side protecting elements 25.

Referring to fig. 1, 2 and 3, the pedal rotation member 13 includes a rotation shaft 131, a first transmission chain wheel 132, a first connection member 133 and a pedal plate 134, the rotation shaft 131 is rotatably connected to the middle portion of the right side of the fixed frame 12, the first transmission chain wheel 132 is fixedly mounted on the rotation shaft 131 and located in the fixed frame 12, the connection members 133 are respectively fixedly mounted at the front and rear ends of the rotation shaft 131, and the pedal plate 134 is fixedly mounted on the connection member 133 at one end far from the rotation shaft 131; the child steps on the foot pedal 134 to perform lower limb exercise, which exercises the flexibility of the lower limb during the winding rotation.

Referring to fig. 1, 2 and 3, the reciprocating top-pulling member 15 includes a second driving sprocket 151, a protruding member 152, a rotating connecting rod 153 and a cylindrical connecting rod 154, the second driving sprocket 151 is rotatably connected to the fixed shaft 14, the protruding member 152 is fixedly disposed on the left side of the front end of the second driving sprocket 151, the rotating connecting rod 153 is rotatably connected to the protruding member 152, the cylindrical connecting rod 154 is rotatably connected to one end of the rotating connecting rod 153, which is far away from the protruding member 152, the cylindrical connecting rod 154 is connected to the limit supporting rod 16 in a sliding fit manner, and the second driving sprocket 151 is in transmission connection with the second driving sprocket 151 through a driving chain belt 18; the driving chain belt 18 transmits a rotational force to rotate the driving chain wheel two 151 and the driving chain wheel one 132 synchronously, and finally the cylindrical connecting rod 154 reciprocates up and down.

Referring to fig. 1, 2 and 5, the telescopic positioning element 22 includes a fixed sleeve 221, a movable cylindrical rod 222, a clamping positioning element 223 and a rotary adjusting element 224, the fixed sleeve 221 is fixedly installed at the upper end of the single-door support frame 21, the movable cylindrical rod 222 is connected in the fixed sleeve 221 in a sliding fit manner, the clamping positioning element 223 is arranged at the upper end of the fixed sleeve 221, the positioning clamping element is sleeved on the movable cylindrical rod 222, and the rotary adjusting element 224 is arranged on the clamping positioning element 223; the rotating adjusting piece 224 is rotated by a certain angle, so that the clamping positioning piece 223 loosens the movable cylindrical rod 222, the extending length of the movable cylindrical rod 222 can be manually adjusted, the rotating adjusting piece 224 is rotated in the reverse direction after the proper height is obtained, and the clamping positioning piece 223 clamps the movable cylindrical rod 222.

Referring to fig. 1, 2 and 4, the buffer bearing 23 includes a square support plate 231, a fixed bearing 232, a rotating block 233, a seat cushion 234 and a second spring 235, the upper end of the movable cylindrical rod 222 is fixedly provided with the square support plate 231, the middle part of the square support plate 231 is fixedly provided with the fixed bearing 232, the fixed bearing 232 is rotatably connected with the rotating block 233, the upper end of the rotating block 233 is fixedly connected with the seat cushion 234, the upper ends of the square support plate 231 are fixedly connected with the second spring 235 in a bilateral symmetry manner, and the upper ends of the second spring 235 are jointly connected with the seat cushion 234; when the external force of the reciprocating top pulling piece 15 acts, the seat cushion 234 swings left and right with a certain amplitude, and the amplitude of the left and right swinging of the seat cushion 234 is buffered through the second spring 235, so that the effect of sitting and rocking the bicycle is achieved.

Referring to fig. 1, 2 and 4, the front and rear protection members 24 include a first telescopic distance control member 241, a first lapping and blocking protection member 242, a telescopic rod 243, a protection backrest 244 and a fixed connecting rod 245, the first telescopic distance control members 241 are symmetrically and fixedly installed at the front and rear of the lower end of the seat cushion 234, the right ends of the first telescopic distance control members 241 are fixedly connected with the lapping and blocking protection member 242 together, the left end of the first telescopic distance control member 241 is fixedly installed with a telescopic rod 243, the left end of the telescopic rod 243 is connected with the protection backrest 244 together, a spring is arranged between the telescopic rod 243 and the protection backrest 244, the lower end of the protection backrest 244 is fixedly installed with the fixed connecting rod 245, and the fixed connecting rod 245 is rotatably connected with the cylindrical connecting rod 154; can pull open right certain distance with taking up fender guard 242 through flexible distance control piece 241 so that embrace the seatpad 234 with children on, then will take up fender guard 242 and push left suitable distance fixed in order to reach the purpose of protecting children, children hold with the hand and hold and take up fender guard 242 and carry out the outrigger, and the guard back 244 plays the guard action equally.

Referring to fig. 1, 3 and 6, the side protection member 25 includes a second telescopic distance control member 251, a connecting plate 252 and a rotary protection member 253, the second telescopic distance control member 251 is symmetrically and fixedly installed at the front end and the rear end of the protection backrest 244, the connecting plate 252 is fixedly installed at one end of the second telescopic distance control member 251 away from the protection backrest 244, and the rotary protection member 253 is rotatably connected to the connecting plate 252; firstly, the rotary protection piece 253 rotates downwards, when a child sits on the seat cushion 234, the child rotates upwards to a horizontal position, and then the distance between the rotary protection piece 253 and the two sides of the body of the child is adjusted according to the body shape of the child through the second telescopic distance control piece 251 so as to achieve the protection purpose.

In addition, the invention also provides a children physical training method, which comprises the following steps:

s1, before training: the adult simply explains the training method for the child, then leads the child to do a simple stretching movement, and then holds the child on the buffer bearing piece 23 to sit well and complete the whole protection work.

S2, in training: the child holds the supporting guard 242, slowly treads the pedal rotation member 13, and at this time, the buffering bearing member 23 swings left and right at a certain amplitude along with the rotation of the pedal rotation member 13, and the child controls the rotation speed of the pedal rotation member 13 according to the feeling of the child, namely, controls the swinging frequency of the buffering bearing member 23, and controls the exercise time according to the adaptability.

S3, after training: the parents open the side protection piece 25 to hold the child down, and then let the child change his or her left and right casters to kick the legs to relax the legs.

When in specific use: parents firstly adjust the buffer bearing part 23 to a proper height through the telescopic positioning part 22, then hold a child on the seat cushion 234 to sit well, adjust the first telescopic distance control part 241 and the second telescopic distance control part 251 to protect the whole body of the child, and then enable the child to tightly hold the supporting and blocking part 242 by hands, parents need to accompany beside the seat when in initial contact to guide the child to slowly coil the foot-treading rotating part 13, at the moment, the reciprocating pull-push part 15 synchronously drives the buffer bearing part 23 to swing, and the child automatically changes the treading speed after the child adapts; whole device when using, not only can temper children's low limbs strength and flexibility, can also temper children's courage volume and physical balance ability, possesses the effect of "rocking car" simultaneously, has increased the interest of taking exercise.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a children physical training device, includes motion subassembly (1) and protection component (2), its characterized in that: moving subassembly (1) upper end fixed mounting has protecting component (2), wherein:

the moving assembly (1) comprises a fixed base (11), a fixed frame (12), a pedal rotating piece (13), a fixed shaft (14), a reciprocating top pulling piece (15), a limiting support rod (16), a first spring (17) and a transmission chain belt (18), wherein the fixed frame (12) is fixedly installed at the upper end of the fixed base (11), the pedal rotating piece (13) is rotatably connected to the middle of the right side of the fixed frame (12), the fixed shaft (14) is fixedly installed at the middle of the left side of the fixed frame (12), the reciprocating top pulling piece (15) is rotatably connected to the fixed shaft (14), the upper end of the reciprocating top pulling piece (15) is rotatably connected to a protective assembly (2), the reciprocating top pulling piece (15) is connected with the limiting support rod (16) in a sliding fit manner, the protective assembly (2) is fixedly connected to the right end of the limiting support rod (16), the first spring (17) is fixedly connected to the upper end of the limiting support rod (16), the first spring (17) is sleeved on the reciprocating top pulling piece (15), and the reciprocating top pulling piece (15) is in transmission connection with the pedal rotating piece (13) through the transmission chain belt (18);

protection subassembly (2) include single door support frame (21), flexible setting element (22), buffering holds carrier (23), front and back protection piece (24) and side protection piece (25), unable adjustment base (11) upper end fixed mounting has single door support frame (21), single door support frame (21) upper end fixed mounting has flexible setting element (22), flexible setting element (22) upper end fixed mounting has buffering to hold carrier (23), buffering holds carrier (23) and is provided with front and back protection piece (24), symmetrical fixed mounting has side protection piece (25) around on front and back protection piece (24).

2. The physical training device for children as claimed in claim 1, wherein: the pedal rotating piece (13) comprises a rotating shaft (131), a first transmission chain wheel (132), a connecting piece (133) and a pedal plate (134), the middle part of the right side of the fixed frame (12) is rotatably connected with the rotating shaft (131), the rotating shaft (131) is arranged on the fixed frame (12) and is fixedly provided with the first transmission chain wheel (132), the front end and the rear end of the rotating shaft (131) are respectively and fixedly provided with the connecting piece (133), and one end, far away from the rotating shaft (131), of the connecting piece (133) is fixedly provided with the pedal plate (134).

3. The physical training device for children as claimed in claim 1, wherein: reciprocating top draws piece (15) including drive sprocket two (151), protruding piece (152), rotate connecting rod (153) and cylinder connecting rod (154), it is connected with drive sprocket two (151) to rotate on fixed axle (14), drive sprocket two (151) front end left side is fixed and is provided with protruding piece (152), it is connected with rotation connecting rod (153) to rotate on protruding piece (152), the one end that protruding piece (152) were kept away from in rotation connecting rod (153) is rotated and is connected with cylinder connecting rod (154), be connected with sliding fit's mode between cylinder connecting rod (154) and spacing branch (16), be connected through drive chain belt (18) transmission between drive sprocket two (151) and drive sprocket two (151).

4. The physical training device for children as claimed in claim 1, wherein: the telescopic positioning part (22) comprises a fixing sleeve (221), a movable cylindrical rod (222), a clamping positioning part (223) and a rotating adjusting part (224), the fixing sleeve (221) is fixedly installed at the upper end of the single-door support frame (21), the movable cylindrical rod (222) is connected in the fixing sleeve (221) in a sliding fit mode, a clamping positioning part (223) is arranged at the upper end of the fixing sleeve (221), the positioning clamping part is sleeved on the movable cylindrical rod (222), and the rotating adjusting part (224) is arranged on the clamping positioning part (223).

5. The physical training device for children as claimed in claim 1, wherein: buffer carrier (23) is including square backup pad (231), fixed accepting (232), turning block (233), seatpad (234) and spring two (235), it has square backup pad (231) to remove cylinder pole (222) upper end fixed mounting, square backup pad (231) middle part fixed mounting has fixed accepting (232), it is connected with turning block (233) to rotate on fixed accepting (232), turning block (233) upper end fixedly connected with seatpad (234), square backup pad (231) upper end bilateral symmetry fixedly connected with spring two (235), spring two (235) upper end is connected with seatpad (234) jointly.

6. The physical training device for children as claimed in claim 1, wherein: front and back protection piece (24) are including flexible accuse apart from piece (241), it keeps off protection piece (242) to set up, telescopic link (243), protection back (244) and fixed pole (245), the symmetry fixed mounting has flexible accuse apart from piece (241) around seatpad (234) lower extreme, flexible accuse apart from piece (241) common fixedly connected with of right-hand member holds up keeps off protection piece (242), flexible accuse apart from piece (241) left end fixed mounting has telescopic link (243), telescopic link (243) left end is connected with protection back (244) jointly, be provided with the spring between telescopic link (243) and protection back (244), protection back (244) lower extreme fixed mounting has fixed pole (245), rotate between fixed pole (245) and the cylinder connecting rod (154) and be connected.

7. The physical training device for children as claimed in claim 1, wherein: the side protection piece (25) comprises a second telescopic distance control piece (251), a connecting plate (252) and a rotary protection piece (253), the second telescopic distance control piece (251) is symmetrically and fixedly installed at the front end and the rear end of the protection backrest (244), the connecting plate (252) is fixedly installed at one end, far away from the protection backrest (244), of the second telescopic distance control piece (251), and the rotary protection piece (253) is rotatably connected to the connecting plate (252).

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