CN109331418B - A kind of sports fitness leg stretching device - Google Patents

Abstract

The invention relates to a sports fitness device, in particular to a sports fitness leg stretching device. Technical problem: to provide a physical fitness leg stretching device that can control strength and prevent physical fatigue. The technical scheme is as follows: a leg stretching device for sports and fitness, comprising a bed surface, a swing board, a U-shaped board, a first rotating shaft, a first gear, a reel, a second rotating shaft, a second gear, a crank handle, a double Face plate, plug-in plate, third rotating shaft, etc.; there are two swinging plates, which are respectively installed on the left and right sides of the bottom of the bed, the U-shaped plate is fixed on the top of the swinging plate, and the first rotating shaft is rotatably connected to the bed. On the rear side of the bottom, the first gear is fixed on the first rotating shaft. In the present invention, the pull rope can be retracted through the rotation of the crank, so that the left and right legs can be swung outward, so that the exerciser can complete the leg stretching by himself, so that there is no need to manually press and pull the exerciser's legs. tendons, thereby reducing artificial physical fatigue.

Description

A kind of sports fitness leg stretching device

technical field

The invention relates to a sports fitness device, in particular to a sports fitness leg stretching device.

Background technique

In order to increase the flexibility of the joints, it is necessary to perform leg stretching. At present, when doing leg stretching, the exerciser's leg is usually pressed and stretched manually. It is difficult to control the strength of the exercisers, and if the exercisers are stretched for a long time, the artificial body is easily fatigued. In order to prevent physical fatigue, many people will press and stretch the exercisers in sections, which will increase the workload.

SUMMARY OF THE INVENTION

In order to overcome the disadvantage that it is difficult to control the strength of the exerciser's leg when pressing Lajin manually, and the body of the exerciser is easily fatigued for a long time, the technical problem is to provide a physical fitness that can control the strength and prevent physical fatigue. Leg stretching device.

The technical solution is as follows: a sports fitness leg stretching device, comprising a bed surface, a swing board, a U-shaped board, a first rotating shaft, a first gear, a reel, a second rotating shaft, a second gear, a crank handle, a double A face plate, a plug-in plate, a third shaft, a pulley and a pull rope. There are two swing plates, which are respectively installed on the left and right sides of the bottom of the bed. The U-shaped plate is fixed on the top of the swing plate, and the first shaft is rotated. Connected to the back side of the bottom of the bed, the first gear is fixed on the first shaft, the reel is mounted on the bottom of the first gear, the second shaft is rotatably fixed on the back of the bottom of the bed, and the second shaft is located on the first On the rear side of the rotating shaft, the second gear is fixedly installed on the second rotating shaft, the second gear meshes with the first gear, the top end of the second rotating shaft passes through the bed surface, the top end of the second rotating shaft is provided with a rocking handle, and the double-face plate is arranged on the bed. In the middle of the bottom of the bed, there are two plugboards, which are respectively fixed on the left and right sides of the double faceplate. There are two third shafts, which are respectively connected to the rear of the left and right plugboards in a rotatable manner. The third shaft is fixed on the There are pulleys that play a guiding role. The rear sides of the left and right swing plates are fixedly connected with pull ropes.

Preferably, it also includes a baffle plate and a cylindrical rod. A plurality of circular holes are evenly spaced on the back side of the top of the bed. There are two cylindrical rods, which are respectively installed on the left and right sides of the bottom of the baffle plate. The cylindrical rods are located in the circular holes. Inside.

Preferably, it also includes a fixing block, a rubber band and a handle. There are two fixing blocks, which are fixedly connected to the tops of the left and right sides of the inserts respectively. handle.

Preferably, a braking device is also included. The braking device includes a guide sleeve, a wedge-shaped block, a guide rod, a spring, an elastic clamp, a lever and a tooth block. The guide sleeve is fixed on the rear side of the bed surface, and the wedge-shaped block There are two blocks, which are respectively installed on the left and right sides of the guide sleeve. The guide sleeve is slidably provided with a guide rod. The elastic clip is set at the rear end of the guide rod. The guide rod is covered with a spring. The front end of the spring is connected with the rear part of the guide sleeve. There are two levers, which are respectively fixed on the left and right sides of the rear side of the elastic clip. The tooth block is fixed on the front end of the guide rod. The two gears are meshed.

Preferably, a sponge pad is also included, and the U-shaped plate is fixedly connected with a sponge pad for comfort.

When it is necessary to use the present invention to exercise, the exerciser sits on the bed, and puts the legs into the U-shaped plates on the left and right sides respectively, and then the exerciser holds the crank handle to rotate the second rotating shaft counterclockwise, and the first The counterclockwise rotation of the second shaft drives the second gear to rotate counterclockwise, the counterclockwise rotation of the second gear drives the first gear to rotate clockwise, and the clockwise rotation of the first gear causes the reel to rotate clockwise, so that the pull rope can be retracted, so that the The swinging plates on the left and right sides are swung outward, and the swinging plates on the left and right sides can swing the legs of the exerciser to the outside through the U-shaped plate. When the legs of the exerciser swing outward to a suitable position, stop. Shake the crank handle, so that the exerciser's leg can be stretched. After the leg has been stretched for a period of time, the exerciser can turn the crank handle clockwise to release the rope from the reel, and then the exerciser can reset the leg. There is no need to manually press and stretch the legs of the exercising personnel, thereby reducing manual physical fatigue, and the strength of the leg stretching can be controlled by rotating the handle.

Before exercising, the exerciser moves the baffle up by hand to move the cylindrical rod out of the round hole, then the exerciser inserts the cylindrical rod into the corresponding round hole, and then the exerciser sits on the bed and makes the baffle. The board is located between the two legs, so that the crotch of the exerciser can be limited and fixed through the baffle plate, thereby preventing the exerciser from sliding back and causing interference to the leg stretching when the exerciser performs leg stretching.

When doing leg stretching, the exerciser can hold the handle with their hands and make the left and right handles close together, the rubber band stretches along with it, and then release the handle. The pulls are kept away from each other, so that the arms of the exerciser can be exercised by repeated repetitions, so that the exerciser can exercise the arms while stretching the legs.

The exerciser holds the lever with their hands, and then moves the rear of the left and right levers together, so that the left and right sides of the elastic clip can swing backwards, and then the exerciser moves the lever forward, and the lever moves forward The tooth block is moved forward by the elastic clamp and the guide rod, the spring is compressed accordingly, the lever is released, and the elastic clamp is reset under the action of the elastic clamp. The tooth block is fixed, and the second gear can be fixed, so that the second gear can be prevented from rotating by itself and causing inconvenience to the exerciser's leg stretching. When the second gear needs to be rotated, the exerciser can make The parts move toward each other and move backward, under the action of the spring force, the tooth block can be moved backward and reset, and then the lever can be released.

The sponge pad can make the exerciser's legs more comfortable. Since the corners of the U-shaped board are relatively sharp, it can prevent the exerciser's legs from being hurt by the U-shaped board when they perform leg stretching.

The beneficial effects are: the present invention can retract the pull rope through the rotation of the crank handle, so that the left and right legs can be swung outward, so that the exerciser can complete the leg stretching by himself, so that no manual manipulation of the exerciser's legs is required. It can reduce the physical fatigue of the human body, and the strength of the leg stretching can be controlled by turning the handle; the crotch of the exerciser is limited and fixed by the baffle plate, so as to prevent the exerciser from When doing leg stretching, the body slides backwards and interferes with leg stretching; the second gear can be fixed by moving the tooth block forward, which can prevent the second gear from rotating by itself and causing inconvenience to leg stretching; The sponge pad can prevent the U-shaped board from causing injury to the exerciser's legs.

Description of drawings

FIG. 1 is a schematic top view of the structure of the present invention.

FIG. 2 is a schematic top view of the structure of the braking device of the present invention.

FIG. 3 is a schematic view of the front structure of the U-shaped plate of the present invention.

Description of reference numerals: 1...bed surface, 2...swing plate, 3...U-shaped plate, 4...first rotating shaft, 5...first gear, 6...winding wheel, 7...second rotating shaft, 8...second gear , 9... rocker, 10... double face plate, 11... insert plate, 12... third shaft, 13... pulley, 14... pull rope, 15... round hole, 16... baffle plate, 17... cylindrical rod, 18... fixed Block, 19... Rubber band, 191... Handle, 20... Brake device, 21... Guide bush, 22... Wedge stop, 23... Guide rod, 24... Spring, 25... Elastic clamp, 26... Lever, 27... Tooth block, 301...sponge pad.

Detailed ways

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

A physical fitness leg stretching device, as shown in Figures 1-3, includes a bed surface 1, a swing board 2, a U-shaped board 3, a first shaft 4, a first gear 5, a reel 6, a second Rotating shaft 7, second gear 8, rocking handle 9, double face plate 10, insert plate 11, third rotating shaft 12, pulley 13 and pulling rope 14, there are two rocking plate 2, which are respectively rotatably installed on the bottom of bed surface 1 On the left and right sides of the bed, the U-shaped plate 3 is fixed on the top of the swing plate 2, the first shaft 4 is rotatably connected to the rear side of the bottom of the bed surface 1, the first gear 5 is fixed on the first shaft 4, and the reel 6 is installed At the bottom of the first gear 5, the second rotating shaft 7 is rotatably fixed on the rear side of the bottom of the bed surface 1, the second rotating shaft 7 is located on the rear side of the first rotating shaft 4, and the second gear 8 is fixedly installed on the second rotating shaft 7, The second gear 8 meshes with the first gear 5, the top end of the second rotating shaft 7 passes through the bed surface 1, the top of the second rotating shaft 7 is provided with a rocker 9, the double-faced plate 10 is arranged in the middle of the bottom of the bed surface 1, and the insert plate 11 is provided with two, which are respectively fixed on the left and right sides of the double face plate 10, and two third rotating shafts 12, which are respectively rotatably connected to the rear of the left and right side insert plates 11, and the third rotating shaft 12 is fixed with a guide. The pulleys 13 on the left and right sides are fixedly connected to the rear sides of the swing plates 2 with pull ropes 14 , and the pull ropes 14 on the left and right sides respectively bypass the pulleys 13 on the left and right sides and are connected to the reels.

Example 2

A physical fitness leg stretching device, as shown in Figures 1-3, includes a bed surface 1, a swing board 2, a U-shaped board 3, a first shaft 4, a first gear 5, a reel 6, a second Rotating shaft 7, second gear 8, rocking handle 9, double face plate 10, insert plate 11, third rotating shaft 12, pulley 13 and pulling rope 14, there are two rocking plate 2, which are respectively rotatably installed on the bottom of bed surface 1 On the left and right sides of the bed, the U-shaped plate 3 is fixed on the top of the swing plate 2, the first shaft 4 is rotatably connected to the rear side of the bottom of the bed surface 1, the first gear 5 is fixed on the first shaft 4, and the reel 6 is installed At the bottom of the first gear 5, the second rotating shaft 7 is rotatably fixed on the rear side of the bottom of the bed surface 1, the second rotating shaft 7 is located on the rear side of the first rotating shaft 4, and the second gear 8 is fixedly installed on the second rotating shaft 7, The second gear 8 meshes with the first gear 5, the top end of the second rotating shaft 7 passes through the bed surface 1, the top of the second rotating shaft 7 is provided with a rocker 9, the double-faced plate 10 is arranged in the middle of the bottom of the bed surface 1, and the insert plate 11 is provided with two, which are respectively fixed on the left and right sides of the double face plate 10, and two third rotating shafts 12, which are respectively rotatably connected to the rear of the left and right side insert plates 11, and the third rotating shaft 12 is fixed with a guide. The pulleys 13 on the left and right sides are fixedly connected to the rear sides of the swing plates 2 with pull ropes 14 , and the pull ropes 14 on the left and right sides respectively bypass the pulleys 13 on the left and right sides and are connected to the reels.

It also includes a baffle 16 and a cylindrical rod 17. A plurality of circular holes 15 are evenly spaced on the back side of the top of the bed surface 1. There are two cylindrical rods 17, which are respectively installed on the left and right sides of the bottom of the baffle 16. 17 is located in the circular hole 15.

Example 3

A physical fitness leg stretching device, as shown in Figures 1-3, includes a bed surface 1, a swing board 2, a U-shaped board 3, a first shaft 4, a first gear 5, a reel 6, a second Rotating shaft 7, second gear 8, rocking handle 9, double face plate 10, insert plate 11, third rotating shaft 12, pulley 13 and pulling rope 14, there are two rocking plate 2, which are respectively rotatably installed on the bottom of bed surface 1 On the left and right sides of the bed, the U-shaped plate 3 is fixed on the top of the swing plate 2, the first shaft 4 is rotatably connected to the rear side of the bottom of the bed surface 1, the first gear 5 is fixed on the first shaft 4, and the reel 6 is installed At the bottom of the first gear 5, the second rotating shaft 7 is rotatably fixed on the rear side of the bottom of the bed surface 1, the second rotating shaft 7 is located on the rear side of the first rotating shaft 4, and the second gear 8 is fixedly installed on the second rotating shaft 7, The second gear 8 meshes with the first gear 5, the top end of the second rotating shaft 7 passes through the bed surface 1, the top of the second rotating shaft 7 is provided with a rocker 9, the double-faced plate 10 is arranged in the middle of the bottom of the bed surface 1, and the insert plate 11 is provided with two, which are respectively fixed on the left and right sides of the double face plate 10, and two third rotating shafts 12, which are respectively rotatably connected to the rear of the left and right side insert plates 11, and the third rotating shaft 12 is fixed with a guide. The pulleys 13 on the left and right sides are fixedly connected to the rear sides of the swing plates 2 with pull ropes 14 , and the pull ropes 14 on the left and right sides respectively bypass the pulleys 13 on the left and right sides and are connected to the reels.

It also includes a baffle 16 and a cylindrical rod 17. A plurality of circular holes 15 are evenly spaced on the back side of the top of the bed surface 1. There are two cylindrical rods 17, which are respectively installed on the left and right sides of the bottom of the baffle 16. 17 is located in the circular hole 15.

It also includes a fixing block 18, a rubber band 19 and a handle 191. There are two fixing blocks 18, which are fixedly connected to the tops of the left and right side plates 11 respectively. The fixing block 18 is fixedly connected with a rubber band 19. A handle 191 for exercising is installed.

Example 4

A physical fitness leg stretching device, as shown in Figures 1-3, includes a bed surface 1, a swing board 2, a U-shaped board 3, a first shaft 4, a first gear 5, a reel 6, a second Rotating shaft 7, second gear 8, rocking handle 9, double face plate 10, insert plate 11, third rotating shaft 12, pulley 13 and pulling rope 14, there are two rocking plate 2, which are respectively rotatably installed on the bottom of bed surface 1 On the left and right sides of the bed, the U-shaped plate 3 is fixed on the top of the swing plate 2, the first shaft 4 is rotatably connected to the rear side of the bottom of the bed surface 1, the first gear 5 is fixed on the first shaft 4, and the reel 6 is installed At the bottom of the first gear 5, the second rotating shaft 7 is rotatably fixed on the rear side of the bottom of the bed surface 1, the second rotating shaft 7 is located on the rear side of the first rotating shaft 4, and the second gear 8 is fixedly installed on the second rotating shaft 7, The second gear 8 meshes with the first gear 5, the top end of the second rotating shaft 7 passes through the bed surface 1, the top of the second rotating shaft 7 is provided with a rocker 9, the double-faced plate 10 is arranged in the middle of the bottom of the bed surface 1, and the insert plate 11 is provided with two, which are respectively fixed on the left and right sides of the double face plate 10, and two third rotating shafts 12, which are respectively rotatably connected to the rear of the left and right side insert plates 11, and the third rotating shaft 12 is fixed with a guide. The pulleys 13 on the left and right sides are fixedly connected to the rear sides of the swing plates 2 with pull ropes 14 , and the pull ropes 14 on the left and right sides respectively bypass the pulleys 13 on the left and right sides and are connected to the reels.

It also includes a baffle 16 and a cylindrical rod 17. A plurality of circular holes 15 are evenly spaced on the back side of the top of the bed surface 1. There are two cylindrical rods 17, which are respectively installed on the left and right sides of the bottom of the baffle 16. 17 is located in the circular hole 15.

It also includes a fixing block 18, a rubber band 19 and a handle 191. There are two fixing blocks 18, which are fixedly connected to the tops of the left and right side plates 11 respectively. The fixing block 18 is fixedly connected with a rubber band 19. A handle 191 for exercising is installed.

It also includes a braking device 20. The braking device 20 includes a guide sleeve 21, a wedge block 22, a guide rod 23, a spring 24, an elastic clip 25, a lever 26 and a tooth block 27. The guide sleeve 21 is fixed on the bed. On the rear side of the face 1, there are two wedge-shaped stoppers 22, which are respectively installed on the left and right sides of the guide sleeve 21. The guide sleeve 21 is slidably provided with a guide rod 23, and the elastic clip 25 is arranged at the rear end of the guide rod 23. , the guide rod 23 is covered with a spring 24, the rear end of the spring 24 is connected with the elastic clip 25, the front end of the spring 24 is connected with the rear part of the guide sleeve 21, and there are two levers 26, which are respectively fixed to the rear of the elastic clip 25 On the left and right sides of the side surface, the tooth blocks 27 are fixed on the front end of the guide rod 23 , and the tooth blocks 27 can engage with the second gear 8 .

Example 5

A physical fitness leg stretching device, as shown in Figures 1-3, includes a bed surface 1, a swing board 2, a U-shaped board 3, a first shaft 4, a first gear 5, a reel 6, a second Rotating shaft 7, second gear 8, rocking handle 9, double face plate 10, insert plate 11, third rotating shaft 12, pulley 13 and pulling rope 14, there are two rocking plate 2, which are respectively rotatably installed on the bottom of bed surface 1 On the left and right sides of the bed, the U-shaped plate 3 is fixed on the top of the swing plate 2, the first shaft 4 is rotatably connected to the rear side of the bottom of the bed surface 1, the first gear 5 is fixed on the first shaft 4, and the reel 6 is installed At the bottom of the first gear 5, the second rotating shaft 7 is rotatably fixed on the rear side of the bottom of the bed surface 1, the second rotating shaft 7 is located on the rear side of the first rotating shaft 4, and the second gear 8 is fixedly installed on the second rotating shaft 7, The second gear 8 meshes with the first gear 5, the top end of the second rotating shaft 7 passes through the bed surface 1, the top of the second rotating shaft 7 is provided with a rocker 9, the double-faced plate 10 is arranged in the middle of the bottom of the bed surface 1, and the insert plate 11 is provided with two, which are respectively fixed on the left and right sides of the double face plate 10, and two third rotating shafts 12, which are respectively rotatably connected to the rear of the left and right side insert plates 11, and the third rotating shaft 12 is fixed with a guide. The pulleys 13 on the left and right sides are fixedly connected to the rear sides of the swing plates 2 with pull ropes 14 , and the pull ropes 14 on the left and right sides respectively bypass the pulleys 13 on the left and right sides and are connected to the reels.

It also includes a baffle 16 and a cylindrical rod 17. A plurality of circular holes 15 are evenly spaced on the back side of the top of the bed surface 1. There are two cylindrical rods 17, which are respectively installed on the left and right sides of the bottom of the baffle 16. 17 is located in the circular hole 15.

It also includes a fixing block 18, a rubber band 19 and a handle 191. There are two fixing blocks 18, which are fixedly connected to the tops of the left and right side plates 11 respectively. The fixing block 18 is fixedly connected with a rubber band 19. A handle 191 for exercising is installed.

It also includes a braking device 20. The braking device 20 includes a guide sleeve 21, a wedge block 22, a guide rod 23, a spring 24, an elastic clip 25, a lever 26 and a tooth block 27. The guide sleeve 21 is fixed on the bed. On the rear side of the face 1, there are two wedge-shaped stoppers 22, which are respectively installed on the left and right sides of the guide sleeve 21. The guide sleeve 21 is slidably provided with a guide rod 23, and the elastic clip 25 is arranged at the rear end of the guide rod 23. , the guide rod 23 is covered with a spring 24, the rear end of the spring 24 is connected with the elastic clip 25, the front end of the spring 24 is connected with the rear part of the guide sleeve 21, and there are two levers 26, which are respectively fixed to the rear of the elastic clip 25 On the left and right sides of the side surface, the tooth blocks 27 are fixed on the front end of the guide rod 23 , and the tooth blocks 27 can engage with the second gear 8 .

It also includes a sponge pad 301, and the U-shaped plate 3 is fixedly connected with a sponge pad 301 for comfort.

When it is necessary to use the present invention to exercise, the exerciser sits on the bed surface 1 and puts the legs into the U-shaped plates 3 on the left and right sides respectively, and then the exerciser holds the crank handle 9 with his hands to reverse the second rotating shaft 7 Clockwise rotation, the second shaft 7 rotates counterclockwise to drive the second gear 8 to rotate counterclockwise, the second gear 8 rotates counterclockwise to drive the first gear 5 to rotate clockwise, and the first gear 5 rotates clockwise to rotate the reel 6 clockwise In this way, the pulling rope 14 can be retracted, so that the swinging plates 2 on the left and right sides can be swung outwards, and the swinging plates 2 on the left and right sides can swing outwardly through the U-shaped plate 3 to make the exerciser's legs swing to the outside. After the exerciser's leg swings to the outside to a suitable position, stop shaking the crank handle 9, so that the exerciser's leg can be stretched. The reel 6 releases the pull rope 14, and then the exerciser resets the legs, so that there is no need to manually press and stretch the legs of the exerciser, so that manual physical fatigue can be reduced, and the legs can be pulled through the rotation of the crank 9. The strength of the tendons is controlled.

Before the exerciser performs the Lajin exercise, the exerciser moves the baffle plate 16 upwards to move the cylindrical rod 17 out of the circular hole 15, then the exerciser inserts the cylindrical rod 17 into the corresponding circular hole 15, and then the exerciser sits on the bed surface. 1, and the baffle 16 is located between the two legs, so that the crotch of the exerciser can be limited and fixed by the baffle 16, so as to prevent the exerciser from sliding back to the leg when the exerciser is doing leg stretching. Interfering with Lajin.

When doing leg stretching, the exerciser can hold the handle 191 with their hands, and make the left and right handles 191 close together, the rubber band 19 is stretched accordingly, and then release the handle 191, under the action of the elastic force of the rubber band, the The handles 191 on the left and right sides are kept away from each other, so that the arms of the exerciser can be exercised by repeated repetitions, so that the exerciser can exercise the arms while stretching the legs.

The exerciser holds the lever 26 with his hands, and then makes the rear parts of the left and right levers 26 close together, so that the left and right sides of the elastic clip 25 can be swung backwards, and then the exerciser moves the lever 26 forward to dial The rod 26 moves forward through the elastic clip 25 and the guide rod 23 to move the tooth block 27 forward, the spring 24 is compressed accordingly, the lever 26 is released, and it is reset under the elastic force of the elastic clip 25. The stopper 22 is fixed to the elastic clip 25, so that the tooth block 27 can be fixed, and then the second gear 8 can be fixed, so that the self-rotation of the second gear 8 can be prevented from causing inconvenience to the exerciser's leg stretching. When the second gear 8 rotates, the exerciser makes the rear parts of the levers 26 on the left and right sides close to each other and move backwards, under the action of the elastic force of the spring 24, the tooth blocks 27 can be moved backward and reset, and then the levers 26 are released. That's it.

The sponge pad 301 can make the exerciser's legs more comfortable. Since the corners of the U-shaped plate 3 are relatively sharp, it can prevent the exerciser from hurting the legs of the exerciser when the U-shaped plate 3 is doing leg stretching. .

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of the invention It is defined by the appended claims and their equivalents.

Claims (2)

1. A leg-stretching device for physical fitness, comprising a bed surface, a swinging board, a U-shaped plate and a first rotating shaft. The plate is fixed on the top of the swing plate, and the first rotating shaft is rotatably connected to the rear side of the bottom of the bed surface. Plate, insert plate, third shaft, pulley and pull rope, the first gear is fixed on the first shaft, the reel is installed on the bottom of the first gear, the second shaft is rotatably fixed on the back side of the bottom of the bed, and the first gear is fixed on the bottom of the first gear. The second rotating shaft is located on the rear side of the first rotating shaft, the second gear is fixedly installed on the second rotating shaft, the second gear meshes with the first gear, the top of the second rotating shaft passes through the bed surface, and the top of the second rotating shaft is provided with a crank handle, The double face plate is arranged in the middle of the bottom of the bed, there are two plug plates, which are respectively fixed on the left and right sides of the double face plate, and there are two third rotating shafts, which are respectively connected to the rear of the left and right plug plates in a rotatable manner. A pulley that plays a guiding role is fixed on the third rotating shaft, and pull ropes are fixedly connected to the rear sides of the left and right swing plates. It includes a baffle and a cylindrical rod. A plurality of circular holes are evenly spaced on the back side of the top of the bed. There are two cylindrical rods, which are respectively installed on the left and right sides of the bottom of the baffle, and the cylindrical rods are located in the circular holes; it also includes There are a fixed block, a rubber band and a handle. There are 2 fixed blocks, which are fixedly connected to the tops of the left and right sides of the inserts respectively. The fixed block is fixedly connected with a rubber band, and a handle for exercise is installed on the rubber band; it also includes There is a braking device. The braking device includes a guide sleeve, a wedge-shaped block, a guide rod, a spring, an elastic clip, a lever and a tooth block. The guide sleeve is fixed on the back side of the bed surface. The wedge-shaped block is provided with two , respectively installed on the left and right sides of the guide sleeve, the guide sleeve is slidably provided with a guide rod, the elastic clip is arranged at the rear end of the guide rod, the guide rod is sleeved with a spring, the rear end of the spring is connected with the elastic clip, the spring The front end of the guide sleeve is connected with the rear part of the guide sleeve. There are two levers, which are respectively fixed on the left and right sides of the rear side of the elastic clip. The tooth block is fixed on the front end of the guide rod, and the tooth block can mesh with the second gear. 2 . The leg stretching device for physical fitness according to claim 1 , further comprising a sponge pad, and a sponge pad for comfort is fixedly connected in the U-shaped plate. 3 .

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