CN114129996B

CN114129996B - Bounce training safety device

Info

Publication number: CN114129996B
Application number: CN202111570917.1A
Authority: CN
Inventors: 李嘉义
Original assignee: Physical Education College of Zhengzhou University
Current assignee: Physical Education College of Zhengzhou University
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-08-09
Anticipated expiration: 2041-12-21
Also published as: CN114129996A

Abstract

The invention relates to a safety protection device for bounce training, which effectively solves the problem that a trainer is easy to be injured when carrying out bounce training; the technical scheme for solving the problem is that the device comprises a bottom plate, wherein a baffle is arranged on the bottom plate; a square groove is formed in the bottom plate, and the baffle plate is hinged with a driving plate; a through groove is formed in the lower end face of the baffle plate, a fan-shaped groove is formed in the through groove, and a fixed block is arranged on the driving plate; the right side of the driving plate is provided with a rotating body; a stop block is arranged on the left side of the lower end of the rotating body; the right side of the baffle is provided with an arc-shaped rod, and the baffle rotates clockwise and drives the rotating body to rotate anticlockwise through the arc-shaped rod; a sliding block is arranged below the rotating body, and a spring is arranged on the right side of the sliding block; the upper end surface of the sliding block is provided with a groove; when the baffle and the driving plate are in vertical positions, the rotating body is in contact with the stop block, the lower end of the rotating body is arranged in the groove, the spring is compressed, the lower end of the arc-shaped rod is arranged on the right side of the upper end of the rotating body and is in contact with the upper end of the rotating body, and the sliding block is in contact with the driving plate; the invention solves the problem that a trainer is easy to be injured when carrying out the bouncing force training, and protects the safety of the trainer.

Description

Bounce training safety device

Technical Field

The invention relates to the field of gymnastics training, in particular to a safety protection device for bounce training.

Background

In the physical training of various items such as gymnastics and the like, the physical training comprises the training of the bounce of a trainer, particularly the continuous bounce training; this kind of training needs put a plurality of vertical foam-rubber cushions on the training place, and adjacent foam-rubber cushion mutually perpendicular, and the training person loops through jump forward, jump left, jump forward, jump right and cross the foam-rubber cushion, can not only train the stability that can also train the spring to training person's bounce. When the feet of a trainer are caught by the sponge mat due to insufficient bouncing force, the trainer can be supported in the process of slowly falling because the sponge mat cannot fall down quickly to support the trainer when falling, and the head of the trainer can fall down easily to cause injury; when the sponge cushion is toppled, the sponge cushion is easy to slide on the ground, so that a trainer cannot fall on the sponge cushion, and the trainer falls on the ground and is easy to be injured; after the spongy cushion falls down, the spongy cushion needs to be lifted up, and the training can be continued by adjusting the position again, so that the spongy cushion is relatively complex and inconvenient to use.

Disclosure of Invention

In view of the above situation, the present invention provides a safety device for bounce training, which can effectively solve the problem that a trainer is easy to be injured when performing bounce training.

The technical scheme for solving the problem is that the device comprises a bottom plate, wherein a baffle plate which is vertically arranged is arranged on the bottom plate, and the front side and the rear side of the lower end of the baffle plate are hinged on the bottom plate, so that the baffle plate can rotate left and right; a square groove arranged below the baffle is formed in the bottom plate, a driving plate rotating left and right is coaxially hinged in the middle of the lower end of the baffle, and the lower end of the driving plate is arranged in the square groove; the lower end face of the baffle plate is provided with a through groove in the left-right direction, the front end face and the rear end face of the through groove are provided with fan-shaped grooves, the upper end of the drive plate is fixed with a fixed block, the front end and the rear end of the fixed block are respectively arranged in the front fan-shaped groove and the rear fan-shaped groove, when the baffle plate and the drive plate are both in vertical positions, the fixed block is in the vertical position, and the right end face of the fixed block is tightly attached to the right side face of the fan-shaped groove; the right side of the driving plate is provided with a rotating body which is hinged in the square groove in a front-back mode, and the lower end of the rotating body is an inclined surface which inclines downwards rightwards; a front and back fixed stop block is arranged on the left side of the lower end of the rotating body, and the stop block prevents the rotating body from rotating clockwise; an arc-shaped rod is fixed on the right side of the baffle, the upper end of the arc-shaped rod is fixed on the baffle, and the baffle rotates clockwise to drive the rotating body to rotate anticlockwise through the arc-shaped rod; a sliding block inserted on the right inner side surface of the square groove is arranged below the rotating body, the sliding block is arranged on the right side of the driving plate and can move left and right, and a spring is arranged on the right side of the sliding block; the upper end surface of the sliding block is provided with a groove; when baffle and drive plate were in vertical position, the rotor was arranged in the recess with the lower extreme of dog contact and rotor, and the spring is compressed, and rotor upper end right side and contact are arranged in to the arc pole lower extreme, and the slider contacts with the drive plate.

Preferably, a front hinge lug and a rear hinge lug are fixed on the upper end face of the bottom plate, a hinge shaft in the front-rear direction is inserted between the two hinge lugs, the lower end of the baffle is hinged to the bottom plate through the hinge shaft, and the upper end of the driving plate is hinged to the lower end of the baffle through the hinge shaft.

Preferably, the outer edge of the baffle plate is wrapped with a spongy cushion.

Preferably, the driving plate is provided with an arc-shaped groove which is coaxial with the hinge shaft; the arc rod and the hinged shaft are coaxial, and when the baffle plate rotates clockwise relative to the driving plate, the arc rod can be inserted into the arc groove.

Preferably, the rotating body consists of a rotating rod, a rotating shaft and a wedge block, the front end and the rear end of the rotating shaft are respectively and rotatably connected to the front inner side wall and the rear inner side wall of the square groove, the middle of the rotating shaft is fixed with the middle of the rotating rod, the wedge block is inserted at the lower end of the rotating rod, the lower end surface of the wedge block is an inclined surface which inclines downwards rightwards, and the wedge block moves in the length direction relative to the rotating rod; be connected with the torsional spring between dwang and the square inslot wall, the torsional spring suit is in the pivot, and torsional spring one end is connected with the dwang, and the other end and square inslot wall connection, torsional spring make the rotor have clockwise rotation trend.

Preferably, the lower end of the rotating rod is provided with a blind hole, the wedge block is arranged in the blind hole, and a spring is connected between the wedge block and the bottom of the blind hole.

Preferably, a sliding groove is formed in the right inner side wall of the square groove, the right end of the sliding block is arranged in the sliding groove, and the spring on the right side of the sliding block is arranged in the sliding groove.

Preferably, the left lower corner of the block is rounded.

When a trainer touches the baffle, the baffle rapidly rotates to the horizontal position, and the phenomenon that the trainer does not fall down when touching the baffle is avoided, so that the trainer falls down on the ground, the baffle rapidly rotates to the horizontal position in a short time when the trainer pushes the baffle, the trainer is supported, the trainer falls down on a sponge pad on the baffle, a buffering effect is achieved, and the safety of the trainer is protected; the reset operation is simple and fast, the position of the vertical baffle to be adjusted and placed is not needed manually, and the use is convenient.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2, with the baffle 2 in an upright position.

Fig. 4 is a partial enlarged view of B in fig. 3, with the baffle 2 in a vertical position.

Fig. 5 is a front sectional view of the device with the baffle 2 in an inclined position.

Fig. 6 is a front cross-sectional view of the device with the baffle 2 in a horizontal position.

Fig. 7 is a front cross-sectional view of the device during a reset procedure, wherein the rotor has not yet been rotationally reset.

Fig. 8 is a front cross-sectional view of the device during the resetting process, with the visor 2 not rotated to the vertical position and the rotor rotated.

Fig. 9 is a front cross-sectional view of the device during the resetting process, with the shutter 2 rotated to the vertical position.

Fig. 10 is a front sectional view of the device during the resetting process, with the shutter 2 turned to the left from the vertical position.

Fig. 11 is a top view of the device in combination, with the baffle 2 in an upright position.

Fig. 12 is a top view of the device in combination, with the baffle 2 in a horizontal position.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 12, the invention comprises a bottom plate 1, a baffle 2 vertically arranged is arranged on the bottom plate 1, and the front side and the rear side of the lower end of the baffle 2 are hinged on the bottom plate 1, so that the baffle 2 can rotate left and right; a square groove 3 arranged below the baffle 2 is formed in the bottom plate 1, a left-right rotating driving plate 4 is coaxially hinged to the middle of the lower end of the baffle 2, and the lower end of the driving plate 4 is arranged in the square groove 3; the lower end face of the baffle plate 2 is provided with a through groove 5 in the left-right direction, the front end face and the rear end face of the through groove 5 are respectively provided with a fan-shaped groove 6, the upper end of the driving plate 4 is fixedly provided with a fixed block 7, the front end and the rear end of the fixed block 7 are respectively arranged in the front fan-shaped groove 6 and the rear fan-shaped groove 6, when the baffle plate 2 and the driving plate 4 are both in vertical positions, the fixed block 7 is in the vertical position, and the right end face of the fixed block 7 is tightly attached to the right side face of the fan-shaped groove 6; the right side of the driving plate 4 is provided with a rotating body which is hinged in the square groove 3 from front to back, and the lower end of the rotating body is an inclined surface which inclines downwards rightwards; a stop dog 8 fixed front and back is arranged on the left side of the lower end of the rotating body, and the stop dog 8 prevents the rotating body from rotating clockwise; an arc-shaped rod 9 is fixed on the right side of the baffle 2, the upper end of the arc-shaped rod 9 is fixed on the baffle 2, and the baffle 2 rotates clockwise to drive the rotating body to rotate anticlockwise through the arc-shaped rod 9; a sliding block 10 inserted on the right inner side surface of the square groove 3 is arranged below the rotating body, the sliding block 10 is arranged on the right side of the driving plate 4 and can move left and right, and a spring is arranged on the right side of the sliding block 10; the upper end surface of the sliding block 10 is provided with a groove 11; when baffle 2 and drive plate 4 were in vertical position, the rotor was arranged in recess 11 with the lower extreme of dog 8 contact and rotor in, and the spring is compressed, and rotor upper end right side and contact are arranged in to the arc pole 9 lower extreme, and slider 10 and drive plate 4 contact.

The outer edge of the baffle 2 is wrapped with a sponge cushion; when baffle 2 was in horizontal position, the people fell on baffle 2, and the foam-rubber cushion cushions the human body, avoids being injured.

The upper end face of the bottom plate 1 is fixedly provided with a front hinging lug and a rear hinging lug 12, a hinging shaft 13 in the front-rear direction is inserted between the two hinging lugs 12, the lower end of the baffle plate 2 is hinged on the bottom plate 1 through the hinging shaft 13, and the upper end of the driving plate 4 is hinged at the lower end of the baffle plate 2 through the hinging shaft 13.

An arc-shaped groove 14 which is coaxial with the hinge shaft 13 is formed in the driving plate 4; the arc-shaped rod 9 and the hinged shaft 13 are coaxial, and when the baffle plate 2 rotates clockwise relative to the driving plate 4, the arc-shaped rod 9 can be inserted into the arc-shaped groove 14; when the baffle plate 2 rotates clockwise relative to the driving plate 4, the driving plate 4 cannot block the arc-shaped rod 9.

The rotating body consists of a rotating rod 15, a rotating shaft 16 and a wedge block 17, the front end and the rear end of the rotating shaft 16 are respectively and rotatably connected to the front inner side wall and the rear inner side wall of the square groove 3, the middle of the rotating shaft 16 is fixed with the middle of the rotating rod 15, the wedge block 17 is inserted at the lower end of the rotating rod 15, the lower end surface of the wedge block 17 is an inclined surface which inclines downwards rightwards, and the wedge block 17 moves in the length direction relative to the rotating rod 15; be connected with the torsional spring between dwang 15 and the 3 inner walls in square groove, torsional spring suit is on pivot 16, and torsional spring one end is connected with dwang 15, and the other end and 3 inner wall connections in square groove, torsional spring make the rotor have clockwise rotation trend.

The lower end of the rotating rod 15 is provided with a blind hole 18, the wedge block 17 is arranged in the blind hole 18, and a spring is connected between the wedge block 17 and the bottom of the blind hole 18; the movement of the wedge 17 into the blind hole 18 compresses the spring, which return presses the wedge 17 away from the blind hole 18.

A sliding groove is formed in the right inner side wall of the square groove 3, the right end of the sliding block 10 is arranged in the sliding groove, and the spring on the right side of the sliding block 10 is arranged in the sliding groove; the slider 10 can compress the spring by moving to the right in the sliding groove, and the spring can extrude the slider 10 to move to the left in the sliding groove by restoring energy.

The left lower corner of the stop block 8 is rounded;

baffle

2 and 4 anticlockwise rotations of drive plate promote slider 10 and move to the right, at 8 lower left corners fillets of dog, can give way drive plate 4, make

baffle

2 and 4 anticlockwise rotations of drive plate can continue to rotate after reaching vertical position, make slider 10 further move to the right, realize that the rotor lower extreme is arranged in recess 11.

When the invention is used, when the baffle plate 2 and the drive plate 4 are both in a vertical state, the lower end of the wedge block 17 is arranged in the groove 11 to block the slide block 10, so that the slide block 10 cannot move leftwards, the spring is compressed at the same time, the spring provides extrusion force for the slide block 10, the slide block 10 also provides extrusion force for the wedge block 17, at the moment, the wedge block 17 is contacted with the stop block 8, the stop block 8 prevents the wedge block 17 from rotating clockwise, if the wedge block 17 wants to rotate anticlockwise, the slide block 10 is required to slide by overcoming the elasticity of the spring, so that the rotating rod 15 and the slide block 10 are in a stable state incapable of rotating;

in addition, when the baffle plate 2 and the driving plate 4 are in a vertical state, the fixing block 7 is in a vertical position, and the right end face of the fixing block 7 is tightly attached to the right side face of the fan-shaped groove 6, so that the right end face of the driving plate 4 is tightly attached to the left end face of the sliding block 10, and the baffle plate 2 and the driving plate 4 cannot rotate anticlockwise; the lower end of the arc rod 9 is arranged on the right side of the upper end of the rotating rod 15, if the baffle plate 2 rotates clockwise, the upper end of the rotating rod 15 is pushed leftwards through the arc rod 9, enough force needs to be applied to overcome the torsion spring and further compress the spring, so that the rotating rod 15 rotates, and therefore the baffle plate 2 and the driving plate 4 cannot rotate clockwise; in conclusion, when the baffle plate 2 is not subjected to external force, the baffle plate 2 and the driving plate 4 are in a stable state.

When carrying out single bounce training, a trainer stands on the left side of the baffle 2 and jumps to the right, and gets over the baffle 2 from the upper part of the baffle 2; when the trainer cannot cross the baffle 2 due to insufficient bounce force, the trainer touches the upper end of the left side of the baffle 2 and pushes the left side of the baffle 2 to the right, so that the baffle 2 rotates to the right around the hinge shaft 13; when the baffle 2 rotates rightwards, the upper end of the rotating rod 15 is extruded leftwards through the lower end of the arc-shaped rod 9, so that the rotating rod 15 and the wedge block 17 rotate anticlockwise together; the wedge block 17 rotates anticlockwise to push the slide block 10 rightwards, so that the slide block 10 moves rightwards in the sliding groove to further compress the spring; when the wedge block 17 rotates anticlockwise, the position of the wedge block 17 gradually rises until the wedge block 17 is separated from the groove 11, the spring is reset to quickly push the sliding block 10 leftwards, the sliding block 10 moves leftwards to impact the lower end of the driving plate 4, so that the driving plate 4 rotates clockwise around the hinge shaft 13 and drives the baffle plate 2 to quickly rotate clockwise through the fixing block 7; the arc-shaped rod 9 rotates clockwise rapidly along with the baffle 2, and the arc-shaped rod 9 pushes the rotating rod 15 to rotate anticlockwise until the right side face of the rotating rod 15 rotates to the upper side and is tangent to the outer edge of the arc-shaped rod 9, so that the rotating rod 15 does not rotate any more; at this time, the torsion spring is in a compressed state because the rotating rod 15 has rotated a certain angle;

in the process that the baffle 2 rotates from the vertical position to the horizontal position, because the distance between the stress point at the upper left of the baffle 2 and the hinge shaft 13 is larger than the distance between the stress point of the rotating rod 15 and the rotating shaft 16, and the spring at the right end of the sliding block 10 is further compressed, when the baffle 2 rotates rightwards by a small angle, the sliding block 10 can be triggered to impact the driving plate 4 leftwards, so that the baffle 2 can rotate towards the horizontal position quickly, and a trainer can fall on the sponge pad on the baffle 2;

in the conventional technology, when a trainer touches the baffle 2, the baffle 2 which is not fallen down in time has an upward jacking force on the trainer, and can support the trainer, so that the baffle 2 and the trainer fall down together, and the trainer can not fall on the baffle 2 but on the ground outside the baffle 2; in the invention, as the trainer pushes the baffle 2 in a short time, the baffle 2 can quickly rotate to the horizontal position, and the baffle 2 falls down in time, the trainer can fall down on the sponge pad on the baffle 2, and the baffle 2 takes over the falling trainer, thereby playing a role of buffering and protecting the safety of the trainer.

When training is needed, the baffle 2 rotates anticlockwise only by pulling the free end of the baffle 2, after the side wall of the fan-shaped groove 6 is contacted with the fixed block 7, the fixed block 7 is pushed by the side wall of the fan-shaped groove 6, the drive plate 4 is driven to rotate anticlockwise together, and the slide block 10 is pushed by the lower end of the drive plate 4 to move the compression spring rightwards in the sliding groove; the arc-shaped rod 9 rotates along with the baffle 2, and when the baffle is reset to the position shown in figure 7, the rotating body does not rotate; the baffle 2 continues to rotate, after the free end of the arc-shaped rod 9 passes over the rotating shaft 16 rightwards, the rotating rod 15 rotates clockwise under the action of the torsion spring, the right side surface of the rotating rod 15 is not tangent to the outer edge of the arc-shaped rod 9 any more, and the baffle 2 does not rotate to the vertical position at the moment as shown in the position of fig. 8; the shutter 2 continues to rotate to the vertical position, as shown in fig. 9; the baffle 2 continues to rotate anticlockwise, so that the baffle 2 inclines leftwards, the free end of the arc-shaped rod 9 is separated from the rotating rod 15, as shown in fig. 10, the baffle 2 drives the driving plate 4 to rotate anticlockwise, the sliding block 10 is pushed by the lower end of the driving plate 4 to move rightwards in the sliding groove to compress the spring, and the wedge block 17 moves downwards to enable the lower end of the wedge block 17 to be placed in the groove 11 until the wedge block 17 corresponds to the groove 11 up and down; releasing the baffle plate 2, pushing the sliding block 10 to move leftwards in the sliding groove by the spring, and on one hand, pushing the lower end of the driving plate 4 leftwards by the sliding block 10 to enable the driving plate 4 and the baffle plate 2 to rotate clockwise to the vertical position; on the other hand, the slide block 10 drives the wedge block 17 to rotate to the left, so that the left end of the wedge block 17 is contacted with the stop block 8, the stop block 8 blocks the wedge block 17, and the slide block 10 is blocked by the wedge block 17, so that the slide block 10 cannot move to the left; the device is completely reset, and the bouncing force training can be continued.

When continuous bounce training is carried out, a plurality of the device are arranged on a training field and are placed at the positions shown in fig. 11; the trainer jumps forwards from the position C to the position D, then jumps leftwards to the position E, then jumps forwards to the position F, and then jumps rightwards to the position G, and the process is a first group of training; the trainer jumps forwards from the position G to the position H, then jumps leftwards to the position I, then jumps forwards to the position J, and then jumps rightwards to the position K, and the process is a second group of training; thus, continuous bounce training is carried out; the baffle 2 corresponding to each bounce can carry out safety protection on the trainee in the training process; during the rest period, the trainer can push the baffle plates 2 to fall down manually to enable the baffle plates 2 to be laid flat, as shown in fig. 12, and the trainer sits on the baffle plates 2 or lies on the baffle plates 2 to rest; when needing to train, hold up baffle 2 in proper order, make baffle 2 reset to vertical position, can continue to carry out the spring force training.

When the baffle 2 rotates rightwards by a small angle, the sliding block 10 can be triggered to impact the driving plate 4 leftwards, so that the baffle 2 can rotate towards the horizontal position quickly, the phenomenon that a trainer supports the trainer by the aid of the baffle 2 which is not fallen down when touching the baffle 2 is avoided, the trainer falls down on the ground is avoided, the trainer can push the baffle 2 to rotate towards the horizontal position quickly in a short time, the trainer is supported, the trainer falls down on the sponge pad on the baffle 2, a buffering effect is achieved, and safety of the trainer is protected.

In the single or continuous bounce training process, the baffle 2 corresponding to each bounce can carry out safety protection on the trainee; meanwhile, during the rest period, a trainer can push the baffle plates 2 to fall down manually to enable the baffle plates 2 to be tiled, and the trainer sits on the baffle plates 2 or lies on the baffle plates 2 to rest; has wide application and convenient use.

According to the bouncing force training device, the baffle 2 can automatically rotate to the horizontal position under stress to carry a trainer, when the bouncing force training device resets, the device can completely reset only by pulling the free end of the baffle 2 to enable the baffle 2 to rotate anticlockwise, the bouncing force training continues, the operation is simple, the resetting speed is high, the position of the vertical baffle 2 does not need to be adjusted manually, and the bouncing force training device is convenient to use.

Claims

1. A safety protection device for bounce training comprises a bottom plate (1) and is characterized in that a baffle (2) which is vertically arranged is arranged on the bottom plate (1), and the front side and the rear side of the lower end of the baffle (2) are hinged on the bottom plate (1) so that the baffle (2) can rotate left and right; a square groove (3) arranged below the baffle (2) is formed in the bottom plate (1), a left-right rotating driving plate (4) is coaxially hinged in the middle of the lower end of the baffle (2), and the lower end of the driving plate (4) is arranged in the square groove (3); the lower end face of the baffle plate (2) is provided with a through groove (5) in the left-right direction, the front end face and the rear end face of the through groove (5) are respectively provided with a fan-shaped groove (6), the upper end of the driving plate (4) is fixedly provided with a fixed block (7), the front end and the rear end of the fixed block (7) are respectively arranged in the front fan-shaped groove (6) and the rear fan-shaped groove (6), when the baffle plate (2) and the driving plate (4) are both in the vertical position, the fixed block (7) is in the vertical position, and the right end face of the fixed block (7) is tightly attached to the right side face of the fan-shaped groove (6); a rotating body which is hinged in the square groove (3) from front to back is arranged on the right side of the driving plate (4), and the lower end of the rotating body is an inclined surface which inclines downwards rightwards; a stop block (8) fixed front and back is arranged on the left side of the lower end of the rotating body, and the stop block (8) prevents the rotating body from rotating clockwise; an arc-shaped rod (9) is fixed on the right side of the baffle (2), the upper end of the arc-shaped rod (9) is fixed on the baffle (2), and the baffle (2) rotates clockwise to drive the rotating body to rotate anticlockwise through the arc-shaped rod (9); a sliding block (10) inserted on the right inner side surface of the square groove (3) is arranged below the rotating body, the sliding block (10) is arranged on the right side of the driving plate (4) and can move left and right, and a spring is arranged on the right side of the sliding block (10); the upper end surface of the sliding block (10) is provided with a groove (11); when baffle (2) and drive plate (4) were in vertical position, rotor and dog (8) contact and the lower extreme of rotor was arranged in recess (11), and the spring is compressed, and rotor upper end right side and contact are arranged in to arc pole (9) lower extreme, and slider (10) and drive plate (4) contact.

2. The bouncer according to claim 1, wherein the baffle (2) is wrapped with a sponge cushion.

3. A bounce training safety protection device according to claim 1, wherein the upper end surface of the base plate (1) is fixed with a front hinge lug and a rear hinge lug (12), a hinge shaft (13) in the front-rear direction is inserted between the two hinge lugs (12), the lower end of the baffle plate (2) is hinged on the base plate (1) through the hinge shaft (13), and the upper end of the driving plate (4) is hinged on the lower end of the baffle plate (2) through the hinge shaft (13).

4. A bouncer training safety device according to claim 3, wherein the drive plate (4) is provided with an arc-shaped slot (14) coaxial with the hinge axis (13); the arc-shaped rod (9) and the hinged shaft (13) are coaxial, and when the baffle plate (2) rotates clockwise relative to the driving plate (4), the arc-shaped rod (9) can be inserted into the arc-shaped groove (14).

5. The bounce training safety device according to claim 1, wherein the rotating body comprises a rotating rod (15), a rotating shaft (16) and a wedge block (17), the front end and the rear end of the rotating shaft (16) are respectively and rotatably connected to the front inner side wall and the rear inner side wall of the square groove (3), the middle of the rotating shaft (16) is fixed with the middle of the rotating rod (15), the wedge block (17) is inserted at the lower end of the rotating rod (15), the lower end surface of the wedge block (17) is an inclined surface inclining to the right and downwards, and the wedge block (17) moves in the length direction of the rotating rod (15); be connected with the torsional spring between dwang (15) and square groove (3) inner wall, the torsional spring suit is on pivot (16), and torsional spring one end is connected with dwang (15), and the other end and square groove (3) inner wall connection, and the torsional spring makes the rotor have clockwise rotation trend.

6. A bouncer training safety device according to claim 5, wherein the lower end of the rotating rod (15) is provided with a blind hole (18), the wedge block (17) is arranged in the blind hole (18), and a spring is connected between the wedge block (17) and the bottom of the blind hole (18).

7. A safety device for bounce training according to claim 1 wherein said square groove (3) has a sliding groove on its right inside wall, the right end of the slider (10) is placed in the sliding groove, and the spring on the right side of the slider (10) is placed in the sliding groove.

8. A bouncer training safety device according to claim 1, wherein the stop (8) is rounded at the lower left corner.