CN113952699B - Safety device is used in push-up training - Google Patents
Safety device is used in push-up training Download PDFInfo
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- CN113952699B CN113952699B CN202111428054.4A CN202111428054A CN113952699B CN 113952699 B CN113952699 B CN 113952699B CN 202111428054 A CN202111428054 A CN 202111428054A CN 113952699 B CN113952699 B CN 113952699B
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- push
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
- A63B23/1209—Involving a bending of elbow and shoulder joints simultaneously
- A63B23/1227—Dips, i.e. push-ups in a vertical position, i.e. eccentric movement, e.g. between parallel bars
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention relates to the technical field of sports equipment and discloses a safety protection device for push-up training, which comprises a support plate, wherein an auxiliary device is arranged on the inner wall of the bottom of the support plate, the auxiliary device comprises a rotating rod, one side of the rotating rod, which is far away from the support plate, is rotatably connected with a roller, a support device is arranged at the front part of the support plate, an extension plate is slidably connected to the inner wall of the support plate through a spring, the extension plate is made of foam, and the bottom of the support plate is communicated with an air bag. And the foam structure can well protect the face of a user.
Description
Technical Field
The invention relates to the technical field of sports equipment, in particular to a safety protection device for push-up training.
Background
The sports equipment is a general name of various instruments, equipment and articles used in competitive sports competitions and body-building exercises, the sports equipment and the sports are interdependent and mutually promoted, the popularization of the sports and the diversification of sports items enable the types, specifications and the like of the sports equipment to be developed, and the sports equipment also has the advantages of excellent quality, stable performance and safe sports, can ensure that the competitive competitions are carried out under the conditions of justice and violence, and also creates necessary material conditions for promoting the improvement of sports level.
When doing push-ups, people often can't continue to support own health when exhausted, lead to the health to pound to ground, when pounding to ground, someone can lead to face and ground striking because of raising the head untimely, can cause the damage to the face, so provide a safety device for push-up training and solve the problem that the aforesaid provided.
Disclosure of Invention
The invention aims to solve the technical problem of providing a safety protection device for push-up training aiming at the defects in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a safety device is used in push-up training, includes the backup pad, the inner wall of backup pad bottom is provided with auxiliary device, auxiliary device is including the rotary rod, one side that the backup pad was kept away from to the rotary rod is rotated and is connected with the gyro wheel, the front portion of backup pad is provided with strutting arrangement, the inner wall of backup pad has the extension plate through spring sliding connection, the material of extension plate is the foam, the bottom intercommunication of backup pad has the gasbag.
Preferably, the fixed surface of rotary rod is connected with extension spring, the top fixedly connected with ejector pad of rotary rod, the inner wall of backup pad is rotated and is connected with two-way screw rod, two-way screw rod's surperficial threaded connection has two sliders.
Preferably, the surface of the sliding block is connected with the inner wall of the supporting plate in a sliding mode, the bottom of the sliding block is fixedly connected with one end, far away from the rotating rod, of the extension spring, and two threads with opposite rotation directions are formed in the surface of the bidirectional screw rod.
Preferably, the inner wall of the supporting plate is rotatably connected with a transmission rod, the surface of the transmission rod and the surface of the bidirectional screw are fixedly connected with staggered shaft helical gears, and the two staggered shaft helical gears are meshed with each other.
Preferably, the supporting device comprises a sliding plate, the surface of the sliding plate is fixedly connected with a limiting rod, the inner wall of the supporting plate is connected with a winding rod through a spring in a rotating mode, the surface of the winding rod is movably connected with a supporting block through a stay cord, the inner wall of the supporting block is connected with a rotating block through a torsion spring in a rotating mode, the inner wall of the supporting block is fixedly connected with an elastic sheet, the bottom of the elastic sheet is fixedly connected with a fixing plate through a connecting rod, and the bottom of the fixing plate is fixedly connected with a plurality of rubber strips.
Preferably, the rear part of the supporting block is in contact with the front part of the supporting plate, the surface of the pushing block is in contact with the left side of the sliding plate, one side of the sliding plate, far away from the pushing block, is fixedly connected with a spring, one end of the spring, far away from the sliding plate, is fixedly connected with the inner wall of the supporting plate, and the surface of the rubber strip is in sliding connection with the inner wall of the supporting block.
Preferably, the inner wall of the supporting block is fixedly connected with a rope, one end of the rope, far away from the supporting block, is fixedly connected with a fixed block, the inner wall of the fixed block is rotatably connected with a knocking rod, the rear portion of the supporting block is fixedly connected with an arc-shaped plate, the inner wall of the arc-shaped plate is slidably connected with an installation plate, the inner wall of the supporting block is rotatably connected with a transmission shaft, and the surface of the transmission shaft is fixedly connected with a belt pulley group.
Preferably, the end, far away from the transmission shaft, of the belt pulley set is fixedly connected with the surface of the rotating block through a connecting rod, the surface of the mounting plate is movably connected with the inner wall of the supporting block through a spring, the surface of the transmission shaft is fixedly connected with one side, far away from the arc-shaped plate, of the mounting plate through a pull rope, and the surface of the rope is in sliding connection with the inner wall of the rotating block.
By adopting the technical scheme, the invention can bring the following beneficial effects:
1. this safety device is used in push-up training, when doing the push-up, the top contact of user's chest and backup pad, if the user does the push-up in-process exhausted and pound to when ground, user's chest can promote the backup pad and move down, the backup pad can drive the gasbag and move down and make gasbag and ground contact, the gasbag can cushion backup pad and user, and to crowding into gas in the backup pad, gas can promote the extension plate roll-off, make the extension plate be located between user's face and the ground, and the extension plate is foam structure can be fine protection user's face.
2. This safety device is used in push-up training, the user is when doing the push-up, can press the backup pad to move down, the backup pad can be pressed the rotary rod rotatory, extension spring on the rotary rod can be supplementary to the user, reduce the power of developing of push-up, help it moves, during the rotatory transfer line, the transfer line can drive two-way screw rod rotatory through crisscross axle helical gear, two-way screw rod drives two sliders and gathers together and can lengthen extension spring, thereby can increase the rotatory dynamics of pressure rotary rod, and then change supplementary dynamics, be applicable to different user of taking exercise degree.
3. This safety device is used in push-up training, during the operative installations, pull out the supporting shoe, the supporting shoe can drive the rolling pole through the stay cord rotatory, put into the supporting shoe with the foot when pulling to suitable position, can carry on spacingly to user's both legs, realize the action standard, the supporting shoe can prevent that user's foot from skidding with ground simultaneously, and then falling down on the ground, when doing the push-up, the rotary rod can rotate and promote the slide through the ejector pad and remove, the slide can promote the gag lever post and inject in the rolling pole, realize the spacing of rolling pole, prevent that the supporting shoe from retrieving automatically, and then injure the user.
4. This safety device is used in push-up training can promote rotatory piece rotatory in inserting the supporting shoe when the foot, and rotatory piece promotes the shell fragment and removes, and the shell fragment can move down through the connecting rod fixed plate, and the fixed plate can drive the rubber strip and stretch out outside the supporting shoe, and then can further increase the frictional force between supporting shoe and the ground, prevents that the supporting shoe from sliding, and then influences user's action.
5. This safety device is used in push-up training, after the foot left the supporting shoe, rotatory piece can reset under the torsional spring effect, and drive the fixed block and remove, at this moment the fixed block can drive the inner wall striking pole and the inner wall striking of rotatory piece, and then produce vibration, the vibration can shake off to the dust on its surface, it is tensile and drive the supporting shoe and remove that the coiling pole can reset the rolling under the clockwork spring effect simultaneously, at this moment the supporting shoe will contact with the backup pad, and the coiling pole will be located between two arcs, at this moment manually press rotatory piece, rotatory piece can drive the transmission shaft rotation through the pulley group, the transmission shaft can drive the mounting panel closure through stay cord and spring, and then can be fixed with supporting shoe and coiling pole, thereby the user can mention the device through grabbing the supporting shoe and remove, and is convenient swift again.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a longitudinal cross-sectional view of a support plate according to the present invention;
FIG. 3 is a cross-sectional view of a support plate according to the present invention;
FIG. 4 is a schematic view of an auxiliary device according to the present invention;
FIG. 5 is a schematic view of a support device according to the present invention;
FIG. 6 is a side semi-sectional view of the support block of the present invention;
FIG. 7 is a half sectional view of the support block of the present invention looking up.
In the figure: 1. a support plate; 2. an auxiliary device; 21. rotating the rod; 22. a push block; 23. an extension spring; 24. a bidirectional screw; 25. a slider; 26. staggered shaft helical gears; 27. a transmission rod; 3. a support device; 31. a slide plate; 32. a limiting rod; 33. winding the rod; 34. a support block; 341. rotating the block; 342. a spring plate; 343. a fixing plate; 344. a rubber strip; 345. a rope; 346. a fixed block; 347. a tapping rod; 348. a pulley group; 349. a drive shaft; 3411. an arc-shaped plate; 3412. mounting a plate; 4. an extension plate; 5. an air bag.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Examples
A safety protection device for push-up training is disclosed, as shown in figures 1-7, and comprises a support plate 1, wherein an auxiliary device 2 is arranged on the inner wall of the bottom of the support plate 1, the auxiliary device 2 comprises a rotating rod 21, one side of the rotating rod 21, which is far away from the support plate 1, is rotatably connected with a roller, a support device 3 is arranged on the front portion of the support plate 1, the inner wall of the support plate 1 is slidably connected with an extension plate 4 through a spring, the extension plate 4 is made of foam, the bottom of the support plate 1 is communicated with an air bag 5, when push-up is performed, the chest of a user is in contact with the top of the support plate 1, if the user runs out of strength and smashes to the ground in the push-up process, the chest of the user can push the support plate 1 to move downwards, the support plate 1 can drive the air bag 5 to move downwards and make the air bag 5 in contact with the ground, the air bag 5 can buffer the support plate 1 and the user, and extrude gas into the support plate 1, the gas will push the extension board 4 to slide out, so that the extension board 4 is positioned between the face of the user and the ground, and the extension board 4 is of a foam structure, so that the face of the user can be well protected.
In this embodiment, the fixed surface of the rotating rod 21 is connected with the extension spring 23, the top of the rotating rod 21 is fixedly connected with the pushing block 22, the inner wall of the supporting plate 1 is connected with the bidirectional screw 24 in a rotating manner, the surface thread of the bidirectional screw 24 is connected with two sliding blocks 25, when a user does push-up, the supporting plate 1 can be pressed to move downwards, the rotating rod 21 can be pressed to rotate by the supporting plate 1, the extension spring 23 on the rotating rod 21 can assist the user, the force generated by push-up can be reduced, and the user can be helped to move.
Further, the surface of slider 25 and the inner wall sliding connection of backup pad 1, the one end fixed connection of rotary rod 21 is kept away from with extension spring 23 to the bottom of slider 25, and two opposite screw threads of turning to have been seted up on the surface of two-way screw rod 24, and the auto-lock can be realized to the helicitic texture, prevents slider 25 from moving by oneself, and then leads to the supplementary dynamics of device to change suddenly, may lead to the unable support of user, and then falls down.
Furthermore, the inner wall of the supporting plate 1 is rotatably connected with a transmission rod 27, the surface of the transmission rod 27 and the surface of the bidirectional screw 24 are fixedly connected with the crossed shaft helical gears 26, the two crossed shaft helical gears 26 are meshed with each other, when the transmission rod 27 is rotated, the transmission rod 27 can drive the bidirectional screw 24 to rotate through the crossed shaft helical gears 26, the bidirectional screw 24 drives the two sliders 25 to gather together to elongate the extension spring 23, so that the rotating force of the pressing rotating rod 21 can be increased, the auxiliary force is changed, and the bidirectional screw is suitable for users with different exercise degrees.
In addition, the supporting device 3 comprises a sliding plate 31, a limiting rod 32 is fixedly connected to the surface of the sliding plate 31, a winding rod 33 is rotatably connected to the inner wall of the supporting plate 1 through a clockwork spring, a supporting block 34 is movably connected to the surface of the winding rod 33 through a pull rope, a rotating block 341 is rotatably connected to the inner wall of the supporting block 34 through a torsion spring, an elastic sheet 342 is fixedly connected to the inner wall of the supporting block 34, a fixing plate 343 is fixedly connected to the bottom of the elastic sheet 342 through a connecting rod, and a plurality of rubber strips 344 are fixedly connected to the bottom of the fixing plate 343, when the device is used, the supporting block 34 is pulled out, the supporting block 34 can drive the winding rod 33 to rotate through the pull rope, when the device is pulled to a proper position, feet are put into the supporting block 34, the two legs of a user can be limited, the action specification is realized, meanwhile, the supporting block 34 can prevent the feet of the user from slipping with the ground, and further fall down to the ground, when doing push-up, the rotating rod 21 rotates and pushes the sliding plate 31 to move through the pushing block 22, the sliding plate 31 pushes the limiting rod 32 to be inserted into the winding rod 33, the winding rod 33 is limited, and the supporting block 34 is prevented from being automatically retracted, so that a user is injured.
In addition, the rear portion of the supporting block 34 is in contact with the front portion of the supporting plate 1, the surface of the pushing block 22 is in contact with the left side of the sliding plate 31, one side of the sliding plate 31 far away from the pushing block 22 is fixedly connected with a spring, one end of the spring far away from the sliding plate 31 is fixedly connected with the inner wall of the supporting plate 1, the surface of the rubber strip 344 is in sliding connection with the inner wall of the supporting block 34, when a foot is inserted into the supporting block 34, the rotating block 341 is pushed to rotate, the rotating block 341 pushes the elastic piece 342 to move, the elastic piece 342 moves downwards through the connecting rod fixing plate 343, the fixing plate 343 drives the rubber strip 344 to extend out of the supporting block 34, and therefore friction between the supporting block 34 and the ground can be further increased, the supporting block 34 is prevented from sliding, and actions of a user are further influenced.
It should be noted that, a rope 345 is fixedly connected to an inner wall of the supporting block 34, a fixing block 346 is fixedly connected to one end of the rope 345, which is far away from the supporting block 34, a striking rod 347 is rotatably connected to the inner wall of the fixing block 346, an arc-shaped plate 3411 is fixedly connected to the rear portion of the supporting block 34, an installation plate 3412 is slidably connected to the inner wall of the arc-shaped plate 3411, a transmission shaft 349 is rotatably connected to the inner wall of the supporting block 34, and a pulley set 348 is fixedly connected to the surface of the transmission shaft 349.
It should be noted that, one end of the pulley set 348 away from the transmission shaft 349 is fixedly connected to the surface of the rotating block 341 through a link, the surface of the mounting plate 3412 is movably connected to the inner wall of the supporting block 34 through a spring, the surface of the transmission shaft 349 is fixedly connected to one side of the mounting plate 3412 away from the arc-shaped plates 3411 through a pull rope, the surface of the rope 345 is slidably connected to the inner wall of the rotating block 341, the winding rod 33 is reset, wound and stretched under the action of the spring to drive the supporting block 34 to move, at this time, the supporting block 34 is in contact with the supporting plate 1, and the winding rod 33 is located between the two arc-shaped plates 3411, at this time, the rotating block 341 is manually pressed down, the rotating block 341 drives the transmission shaft 349 to rotate through the pulley set 348, the transmission shaft 349 drives the mounting plate 3412 to close through the pull rope and the spring, and further, the supporting block 34 and the winding rod 33 can be fixed, so that a user can lift the device to move by grasping the supporting block 34, is convenient and quick.
The working principle is that when the user does push-up, the chest of the user is in contact with the top of the supporting plate 1, if the user is exhausted and pounded to the ground in the process of doing push-up, the chest of the user can push the supporting plate 1 to move downwards, the supporting plate 1 can drive the air bag 5 to move downwards and enable the air bag 5 to be in contact with the ground, the air bag 5 can buffer the supporting plate 1 and the user and squeeze air into the supporting plate 1, the air can push the extension plate 4 to slide out, the extension plate 4 is located between the face of the user and the ground, and the extension plate 4 is of a foam structure and can well protect the face of the user; when a user does push-up, the supporting plate 1 can be pressed to move downwards, the supporting plate 1 can be pressed to rotate the rotating rod 21, the extension spring 23 on the rotating rod 21 can assist the user, the force generated by push-up is reduced, and the movement of the user is assisted; when the device is used, the supporting block 34 is pulled out, the supporting block 34 can drive the winding rod 33 to rotate through the pull rope, feet are placed into the supporting block 34 when the device is pulled to a proper position, the two legs of a user can be limited, action specification is realized, meanwhile, the supporting block 34 can prevent the feet of the user from slipping with the ground, and further the user falls down on the ground, when push-up is performed, the rotating rod 21 can rotate and push the sliding plate 31 to move through the push block 22, the sliding plate 31 can push the limiting rod 32 to be inserted into the winding rod 33, the limitation of the winding rod 33 is realized, the supporting block 34 is prevented from being automatically recovered, and further the user is injured; when the foot is inserted into the supporting block 34, the rotating block 341 is pushed to rotate, the rotating block 341 pushes the elastic piece 342 to move, the elastic piece 342 moves downwards through the connecting rod fixing plate 343, and the fixing plate 343 drives the rubber strip 344 to extend out of the supporting block 34, so that the friction force between the supporting block 34 and the ground can be further increased, the supporting block 34 is prevented from sliding, and the action of a user is further influenced; when the foot leaves the supporting block 34, the rotating block 341 is reset under the action of the torsion spring and drives the fixing block 346 to move, at this time, the fixing block 346 drives the knocking rod 347 to collide with the inner wall of the rotating block 341, so as to generate vibration, the vibration can vibrate dust on the surface of the rotating block, meanwhile, the winding rod 33 is reset, wound and stretched under the action of the spring and drives the supporting block 34 to move, at this time, the supporting block 34 is in contact with the supporting plate 1, and the winding rod 33 is located between the two arc-shaped plates 3411, at this time, the rotating block 341 is manually pressed down, the rotating block 341 drives the transmission shaft 349 to rotate through the belt pulley set 348, the transmission shaft 349 drives the mounting plate 3412 to be closed through the pull rope and the spring, and then the supporting block 34 and the winding rod 33 can be fixed, so that a user can lift the device to move by grasping the supporting block 34, which is convenient and fast.
The present invention provides a safety protection device for push-up training, and the method and the way for implementing the technical scheme are many, and the above description is only the preferred embodiment of the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (6)
1. The utility model provides a safety device is used in push-up training, includes backup pad (1), its characterized in that: the auxiliary device (2) is arranged on the inner wall of the bottom of the supporting plate (1), the auxiliary device (2) comprises a rotating rod (21), one side, far away from the supporting plate (1), of the rotating rod (21) is rotatably connected with a roller, a supporting device (3) is arranged on the front portion of the supporting plate (1), the inner wall of the supporting plate (1) is connected with an extension plate (4) in a sliding mode through a spring, the extension plate (4) is made of foam, and an air bag (5) is communicated with the bottom of the supporting plate (1);
the rotating rod (21) is positioned on the side surface of the supporting plate (1), and when a user presses the supporting plate (1) to move downwards, the supporting plate (1) can press the rotating rod (21) to rotate;
the extension plate (4) is positioned at the rear side of the support plate (1), when the air bag (5) is contacted with the ground, the air bag (5) extrudes air into the support plate (1), and the air can push the extension plate (4) to slide out;
an extension spring (23) is fixedly connected to the surface of the rotating rod (21), a push block (22) is fixedly connected to the top of the rotating rod (21), a bidirectional screw (24) is rotatably connected to the inner wall of the supporting plate (1), and two sliding blocks (25) are connected to the surface of the bidirectional screw (24) in a threaded manner; the surface of the sliding block (25) is in sliding connection with the inner wall of the supporting plate (1), the bottom of the sliding block (25) is fixedly connected with one end, away from the rotating rod (21), of the extension spring (23), and two threads with opposite rotation directions are formed in the surface of the bidirectional screw (24);
when the supporting plate (1) moves downwards, the rotating rod (21) can be pressed to rotate, and the extension spring (23) on the rotating rod (21) can assist a user to reduce the force of push-up and help the user to move;
two-way screw rod (24) drive two slider (25) and gather together and can prolong extension spring (23) to can increase and press the rotatory dynamics of moving rotary rod (21), and then change supplementary dynamics, be applicable to the user of different exercise degree.
2. The safety device for push-up training of claim 1, wherein: the inner wall of the supporting plate (1) is rotatably connected with a transmission rod (27), the surface of the transmission rod (27) and the surface of the bidirectional screw (24) are fixedly connected with staggered shaft bevel gears (26), and the two staggered shaft bevel gears (26) are meshed with each other.
3. The safety device for push-up training of claim 1, wherein: the supporting device (3) comprises a sliding plate (31), the surface fixing of sliding plate (31) is connected with a limiting rod (32), the inner wall of supporting plate (1) is connected with a winding rod (33) through a spring, the surface of winding rod (33) is connected with a supporting block (34) through a stay cord swing joint, the inner wall of supporting block (34) is connected with a rotating block (341) through a torsion spring, the inner wall fixing of supporting block (34) is connected with an elastic piece (342), the bottom of elastic piece (342) is connected with a fixing plate (343) through a connecting rod, and the bottom of fixing plate (343) is fixedly connected with a plurality of rubber strips (344).
4. The safety device for push-up training of claim 3, wherein: the rear portion of the supporting block (34) is in contact with the front portion of the supporting plate (1), the surface of the push block (22) is in contact with the left side of the sliding plate (31), a spring is fixedly connected to one side, far away from the push block (22), of the sliding plate (31), one end, far away from the sliding plate (31), of the spring is fixedly connected with the inner wall of the supporting plate (1), and the surface of the rubber strip (344) is in sliding connection with the inner wall of the supporting block (34).
5. The safety device for push-up training of claim 3, wherein: the inner wall of supporting shoe (34) fixedly connected with rope (345), the one end fixedly connected with fixed block (346) of supporting shoe (34) is kept away from in rope (345), the inner wall of fixed block (346) rotates and is connected with strikes pole (347), the rear portion fixedly connected with arc board (3411) of supporting shoe (34), the inner wall sliding connection of arc board (3411) has mounting panel (3412), the inner wall of supporting shoe (34) rotates and is connected with transmission shaft (349), the fixed surface of transmission shaft (349) is connected with pulley group (348).
6. The safety device for push-up training of claim 5, wherein: one end, far away from the transmission shaft (349), of the belt pulley group (348) is fixedly connected with the surface of the rotating block (341) through a connecting rod, the surface of the mounting plate (3412) is movably connected with the inner wall of the supporting block (34) through a spring, the surface of the transmission shaft (349) is fixedly connected with one side, far away from the arc-shaped plate (3411), of the mounting plate (3412) through a pull rope, and the surface of the rope (345) is connected with the inner wall of the rotating block (341) in a sliding mode.
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| CN202111428054.4A CN113952699B (en) | 2021-11-29 | 2021-11-29 | Safety device is used in push-up training |
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| CN202111428054.4A CN113952699B (en) | 2021-11-29 | 2021-11-29 | Safety device is used in push-up training |
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