CN114225330B - Aerobics exercises flexibility training aid and use method thereof - Google Patents

Abstract

The invention relates to the technical field of flexibility training, in particular to a flexibility training aid for aerobics exercises and a using method thereof. According to the invention, the balloon sleeve can be rapidly supported by arranging the internal support mechanism, the power module for driving the balloon sleeve and the internal support mechanism to expand is fixed on the bottom surface of the support plate, the top cover for covering the balloon sleeve is rotatably connected to both sides of the top surface of the support plate through the hinge, so that a remote technician can conveniently select legs or perform waist toughness training according to needs, and the waist and the legs can be subjected to toughness training by one set of equipment, and the balloon sleeve is self-filled, so that the wind direction of falling of the athlete from a ball body in the training process is reduced, and the training safety of the athlete is ensured.

Description

Aerobics exercises flexibility training aid and use method thereof

Technical Field

The invention relates to the technical field of flexibility training, in particular to a flexibility training aid for aerobics exercises and a using method thereof.

Background

Aerobics exercises are popular with the masses, are widely popularized and integrate gymnastics, dancing, music, fitness and entertainment into a whole. The body building gymnastics movement is composed of basic movements of bending, stretching, rotating, winding, lifting, swinging, vibrating and the like of the head and neck, the upper limbs, the chest, the waist, the lower limbs and the like. Only if the bare-handed gymnastics movement is correctly mastered, it is possible to coordinate and accurately complete the gymnastics movement.

The standard body building gymnastics action has higher requirement on the body flexibility of athletes, so that some beginners need to be subjected to toughness training, the conventional toughness training adopts leg and waist toughness training, the conventional toughness training device does not have the function of simultaneously training the two parts, and the lower waist ball training mode of the waist training is to adopt the mode that the ball is filled, the athletes bend down to train, the assistance of personnel is needed, and the injury from falls to telemechanical personnel can be caused without leaving attention.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a aerobics exercises flexible training aid and a using method thereof, an internal support mechanism is arranged to rapidly support a balloon sleeve, a power module for driving the balloon sleeve and the internal support mechanism to expand is fixed on the bottom surface of a support plate, and top covers covering the balloon sleeve are rotatably connected to two sides of the top surface of the support plate through hinges, so that a remote worker can conveniently select legs or waist flexible training according to needs, a set of equipment can carry out flexible training on the waist and the legs, the balloon sleeve is self-sufficient, the wind direction of falling from a ball body of the athlete in the training process is reduced, and the training safety of the athlete is ensured; the mode that mechanical support inflation and gas inflation balloon cover combined together is adopted to improve the in-process of sportsman's training, balloon cover rate of change, improve sportsman's training efficiency.

The purpose of the invention can be realized by the following technical scheme:

a flexible training aid for aerobics exercises comprises a supporting plate, wherein supporting legs are fixed at four corners of the bottom surface of the supporting plate, the outer walls of the supporting legs are rotatably connected with a supporting frame body, the top surface of the supporting frame body is connected with a leg support or a round support in an inserting mode, the leg support is used for supporting shanks, and the round support is used for supporting palms or soles;

the top surface of backup pad is fixed with the balloon cover that is used for supporting the sportsman's waist, be provided with the internal stay mechanism that is used for supporting the balloon cover in the backup pad, can support the balloon cover rapidly through setting up internal stay mechanism, and the bottom surface of backup pad is fixed with and is used for driving the power module that balloon cover and internal stay mechanism expanded, the top surface both sides of backup pad all are connected with the cover through the hinge rotation and establish the top cap of balloon cover, shelter from through setting up going on of top cap to the backup pad top surface, and suitable training mode is selected as required to convenient the remote operator, also can accomodate the apparatus simultaneously.

The method is further characterized in that: the utility model discloses a sports equipment, including support frame body, horizontal frame, air spring, support frame body, support leg, universal auto-lock wheel, the outer wall of ring is fixed with down the crossbearer, the tip bottom surface that the ring was kept away from to the crossbearer down is fixed with universal auto-lock wheel, is convenient for remove and the fixed of position through this universal auto-lock wheel, the both sides outer wall of crossbearer all is connected with the last crossbearer rotation through two diagonal braces, the inside sliding connection who goes up the crossbearer has the balladeur train, a plurality of spliced eye that are used for leg support or circle support grafting are seted up to the top surface equidistance of balladeur train, make things convenient for like this to carry out not unidimensional adaptation adjustment as required by the sportsman, it is connected with the air spring to rotate between crossbearer and the lower crossbearer, be connected with traction spring between balladeur train and the last crossbearer, can drive the balladeur train through traction spring and inwards remove.

The method is further characterized in that: the bottom surface central point department of putting of backup pad is fixed with two round bars, the outer wall of round bar rotates and is connected with the guide pulley, the outer wall of ring is fixed with the side and links the frame, wherein, is connected with the haulage rope through closing on the guide pulley between two sides that are in same top cap place side links the frame, can make things convenient for two sportsmen to carry out mutual assistance shank ligament training like this.

The method is further characterized in that: the inside of balloon cover is sewed up and is connected with the inside lining, the bottom central point department of putting of inside lining is fixed with the air cock of being connected with external air supply, and the air cock passes through trachea and power module intercommunication, and balloon cover and internal stay mechanism combination have guaranteed balloon cover gas inflation's travelling comfort like this, have also improved the bulky rate of change of balloon cover.

Further, the method comprises the following steps: the center of the top surface of the supporting plate is provided with a strip hole which is distributed in a diagonal line, the inner supporting mechanism comprises two first rotating seats which are fixedly connected with the top surface of the supporting plate, the two first rotating seats are positioned on the outer sides of short edges of the strip hole, and the first rotating seats are rotatably connected with an arc supporting plate which is attached to the lining through long supporting rods;

the lower part in rectangular hole is provided with two-way lead screw, the both ends of two-way lead screw are rotated and are connected with the rotation seat two with backup pad bottom surface fixed connection, the outer wall of two-way lead screw closes soon and is connected with two thread bush, it is connected with short vaulting pole to rotate between thread bush and the long vaulting pole middle part, the one end and the power module transmission of two-way lead screw are connected, and two arc fagging just promote high removal in opposite directions can be driven simultaneously to two-way lead screw during operation like this to prop out the balloon cover fast.

The method is further characterized in that: the smooth groove has all been seted up to two-way lead screw threaded portion's middle part and both sides, the external diameter of smooth groove is less than the internal diameter of thread bush, and is in the length of the smooth groove at middle part and is greater than the length twice of thread bush to the smooth groove length that is in both sides position is greater than the length of thread bush, and power module can continue to keep blowing or inspiratory operation to the balloon cover when moving the thread bush to the smooth groove position on the two-way lead screw like this, thereby promotes power module's commonality, reduces equipment manufacturing cost.

The method is further characterized in that: the two-way lead screw is located the outside of plain groove and has cup jointed the limiting plate with backup pad fixed connection, the outer wall of the relative thread bush of limiting plate is fixed with reset spring one, one the outer wall of the relative another thread bush of thread bush is fixed with reset spring two, and the thread bush of being convenient for like this moves to the screw thread part from the plain groove fast, and the power module of being convenient for is regulated and control as required.

The method is further characterized in that: the power module includes driving motor and the blade that induced drafts of drum, driving motor's tail end cup joints and is fixed with the blast cover, driving motor's motor shaft one end is connected with two-way screw drive, the motor shaft that driving motor is located the blast cover is connected with the blade transmission that induced drafts of drum to the blast cover passes through trachea and air cock intercommunication, and such driving motor can realize the transmission to two-way screw, can also carry out the air-blowing operation to the balloon cover simultaneously, and a tractor serves two-purpose, and the practicality is strong.

A method for using a training aid for flexibility of aerobics exercises, wherein the training aid for flexibility comprises leg flexibility training and waist flexibility training;

the leg toughness training steps are as follows:

SA1, adjusting the gas spring to an extending state, and driving the upper cross frame to move upwards in a horizontal moving mode so that the upper cross frame reaches the height when the top cover is closed;

SA2, placing the leg support on the inserting hole of the appointed sliding frame;

SA3, two athletes sit back to back on the top cover, place legs on the leg supports, bind through ropes, and each of the two athletes sequentially draw the support frame body to turn outwards through a mode of inward leg combination by utilizing the traction ropes, so that the athletes are subjected to leg ligament traction training;

the waist toughness training steps are as follows:

SB1, adjusting the gas spring to a compressed state to enable the upper cross frame to reach the height of the top cover when the top cover is opened;

SB2, placing the round support on the inserting hole of the appointed sliding frame;

SB3, controlling a driving motor of the power module to work, driving a bidirectional screw rod to rotate through the driving motor, supporting a long support rod through a short support rod, pushing an arc-shaped support plate, and adjusting the waist of the athlete to be in contact with the top surface of the balloon sleeve after the waist of the athlete is adjusted to be at a proper height;

SB4, supporting the palms and soles of the athletes with the round supports at the corresponding positions respectively;

SB5, controlling the power module to work according to the requirement to adjust the supporting strength of the waist of the athlete;

SB6, when the support is not needed, the driving motor is controlled to rotate reversely, the thread sleeve and the thread part are screwed together again under the action of pressure, and the air suction blades perform air suction operation, so that the support action of the arc-shaped supporting plate is reduced rapidly, the volume between the balloon sleeve and the lining is reduced, and the height of the balloon sleeve is contracted rapidly.

The invention has the beneficial effects that:

1. the four corners of the bottom surface of a supporting plate of the aerobics exercises flexibility training assistor are all fixed with supporting legs, the outer walls of the supporting legs are rotatably connected with a supporting frame body, the top surface of the supporting frame body is connected with a leg support or a round support in an inserting mode, then a balloon sleeve for supporting the waist of an athlete is fixed on the top surface of the supporting plate, an internal supporting mechanism for supporting the balloon sleeve is arranged in the supporting plate, the balloon sleeve can be rapidly supported by the internal supporting mechanism, a power module for driving the balloon sleeve and the internal supporting mechanism to expand is fixed on the bottom surface of the supporting plate, and top covers covering the balloon sleeve are rotatably connected to the two sides of the top surface of the supporting plate through hinges, so that a remote employee can conveniently select legs or carry out flexibility training on the waist and the legs as required, a set of equipment can carry out flexibility training on the waist and the legs, the balloon sleeve is self-filled, the wind direction of the athlete falling from a sphere in the training process is reduced, and the safety of the athlete training is ensured;

2. the utility model discloses a pneumatic training device, including the inside sewing up of balloon cover, be fixed with the air cock of being connected with external air supply in the bottom central point department of putting of inside lining, and the air cock passes through trachea and power module intercommunication, like this balloon cover and internal stay mechanism combination, when balloon cover gas inflation's travelling comfort has been guaranteed, balloon cover volume change rate has also been improved, set up the top surface center of backup pad the rectangular hole that is diagonal distribution, and including the stay mechanism include two with backup pad top surface fixed connection rotate the seat one, then rotate the seat one and be connected with the arc fagging that leans on with the inside lining through long vaulting pole rotation, be provided with two-way lead screw with the lower part in rectangular hole, two-way lead screw's both ends are rotated and are connected with the rotation seat two with backup pad bottom surface fixed connection, the outer wall of two-way lead screw closes soon and is connected with two thread covers, it is connected with short vaulting pole to rotate between thread cover and the long vaulting pole middle part, the one end and the power module transmission of two-way are connected, like this two-way lead screw during operation, can drive two arc faggings displacement that just promotes the height simultaneously, thereby prop the balloon cover fast, thereby prop up the expansion of expanding and expand the mode that combines together, thereby improve the sportsman, thereby, the sportsman in-process of training, the sportsman changes, the sportsman, the change efficiency of the sportsman improves the sportsman.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIGS. 1 to 3 are schematic views showing the structure of a training aid for aerobics exercises according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 according to the present invention;

FIG. 5 is a schematic structural view of a support frame according to the present invention;

FIG. 6 is a schematic view of the structure of the round holder of the present invention;

FIG. 7 is a schematic view of a portion of the internal stay mechanism of the present invention;

FIG. 8 is a schematic view of the leg rest of the present invention;

figure 9 is a schematic view of the construction of a balloon envelope according to the invention;

FIG. 10 is a schematic bottom view of the training aid for aerobics exercises;

FIG. 11 is an enlarged view of a portion of FIG. 10 at B in accordance with the present invention;

FIG. 12 is a schematic structural view of a bidirectional lead screw according to the present invention;

fig. 13 is a schematic structural view of a power module of the present invention.

In the figure: 100. a support plate; 101. supporting legs; 102. a top cover; 103. a strip hole; 104. a round bar; 105. a guide wheel;

200. a leg support; 300. a support frame body; 301. a lower cross frame; 302. a universal self-locking wheel; 303. a carriage; 304. a diagonal brace; 305. inserting holes; 306. a gas spring; 307. a side connecting frame; 308. a circular ring; 309. an upper transverse frame;

400. a balloon sleeve; 401. a liner; 402. an air faucet;

500. round support; 600. an inner supporting mechanism; 601. an arc-shaped supporting plate; 602. rotating the first base; 603. a long stay bar; 604. a short stay bar; 605. a threaded sleeve; 606. a first return spring; 607. a limiting plate; 608. a bidirectional screw rod; 6081. a light groove;

700. a power module; 701. a drive motor; 702. a blower housing; 703. and air blowing blades.

Detailed Description

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

Referring to fig. 1-13, a flexible training aid for aerobics exercises comprises a support plate 100, wherein support legs 101 are fixed at four corners of the bottom surface of the support plate 100, the outer walls of the support legs 101 are rotatably connected with a support frame body 300, a leg support 200 or a round support 500 is connected to the top surface of the support frame body 300 in an inserted manner, the leg support 200 is arranged for supporting the lower leg, and the round support 500 is arranged for supporting the palm or the sole of a hand;

the top surface of backup pad 100 is fixed with the balloon cover 400 that is used for supporting the sportsman's waist, be provided with the internal stay mechanism 600 that is used for supporting balloon cover 400 in the backup pad 100, can support balloon cover 400 rapidly through setting up internal stay mechanism 600, and the bottom surface of backup pad 100 is fixed with the power module 700 that is used for driving balloon cover 400 and internal stay mechanism 600 and expandes, the top surface both sides of backup pad 100 all are connected with the cover through the hinge rotation and establish the top cap 102 of balloon cover 400, shelter from through setting up top cap 102 to backup pad 100 top surface, the convenient distant sportsman of moving about selects suitable training mode as required, also can accomodate the apparatus simultaneously.

The support frame body 300 comprises a circular ring 308 rotatably connected with the support leg 101, a lower transverse frame 301 is fixed on the outer wall of the circular ring 308, a universal self-locking wheel 302 is fixed on the bottom surface of the end portion, far away from the circular ring 308, of the lower transverse frame 301, the universal self-locking wheel 302 is convenient to move and fix in position, the outer walls of the two sides of the lower transverse frame 301 are rotatably connected with an upper transverse frame 309 through two inclined support rods 304, the inner portion of the upper transverse frame 309 is slidably connected with a sliding frame 303, a plurality of insertion holes 305 for inserting the leg supports 200 or the circular supports 500 are formed in the top surface of the sliding frame 303 at equal intervals, so that the athlete can conveniently perform adaptation adjustment in different sizes according to needs, an air spring 306 is rotatably connected between the upper transverse frame 309 and the lower transverse frame 301, a traction spring is connected between the sliding frame 303 and the upper transverse frame 309, the sliding frame 303 can be driven to move inwards through the traction spring, two circular rods 104 are fixed at the center of the bottom surface of the support plate 100, the outer wall of the circular rod 104 is rotatably connected with a guide wheel 105, a side connecting frame 307, and a side connecting frame 307 connected with a rope, and the side connecting belt of the side of the top cover 102, and the athlete can conveniently train the athlete can train the athlete.

The inner part of the balloon sleeve 400 is connected with a lining 401 in a sewing mode, an air tap 402 connected with an external air source is fixed at the center of the bottom of the lining 401, the air tap 402 is communicated with the power module 700 through an air pipe, the balloon sleeve 400 is combined with the internal supporting mechanism 600, the volume change rate of the balloon sleeve 400 is improved while the comfort of air expansion of the balloon sleeve 400 is guaranteed, the top surface center of the supporting plate 100 is provided with strip holes 103 distributed diagonally, the internal supporting mechanism 600 comprises two rotating seats I602 fixedly connected with the top surface of the supporting plate 100, the two rotating seats I602 are located on the outer sides of the short edges of the strip holes 103, and the rotating seats I602 are rotatably connected with an arc supporting plate 601 attached to the lining 401 through a long supporting rod 603;

the lower part of rectangular hole 103 is provided with two-way lead screw 608, two ends of two-way lead screw 608 rotate and are connected with the rotation seat two of backup pad 100 bottom surface fixed connection, the outer wall of two-way lead screw 608 closes soon and is connected with two thread bushings 605, rotate between thread bushing 605 and the long vaulting pole 603 middle part and be connected with short vaulting pole 604, the one end and the power module 700 transmission of two-way lead screw 608 are connected, like this two-way lead screw 608 during operation, can drive two arc faggings 601 and in opposite directions and the removal that promotes the height simultaneously to prop out balloon cover 400 fast.

The middle part and two sides of the threaded part of the bidirectional screw 608 are both provided with a smooth groove, the outer diameter of the smooth groove is smaller than the inner diameter of the threaded sleeve 605, the length of the smooth groove 6081 in the middle part is larger than twice the length of the threaded sleeve 605, and the length of the smooth groove 6081 in the positions of two sides is larger than the length of the threaded sleeve 605, so that when the threaded sleeve 605 on the bidirectional screw 608 moves to the position of the smooth groove 6081, the power module 700 can continue to perform the operation of blowing or sucking on the balloon sleeve 400, the universality of the power module 700 is improved, the equipment manufacturing cost is reduced, the limiting plate 607 fixedly connected with the supporting plate 100 is sleeved on the outer side of the smooth groove 6081 of the bidirectional screw 608, the first return spring 606 is fixed on the outer wall of the limiting plate 607 relative to the threaded sleeve 605, and the second return spring is fixed on the outer wall of one threaded sleeve 605 relative to the other threaded sleeve 605, so that the threaded sleeve 605 can rapidly move from the position of the smooth groove 6081 to the threaded part, and the power module 700 can be conveniently regulated and controlled as required.

The power module 700 comprises a driving motor 701 and an induced-draft blade 703, a blowing cover 702 is fixedly sleeved at the tail end of the driving motor 701 in a sleeved mode, one end of a motor shaft of the driving motor 701 is in transmission connection with a bidirectional screw rod 608, the motor shaft of the driving motor 701, which is located in the blowing cover 702, is in transmission connection with the induced-draft blade 703, and the blowing cover 702 is communicated with an air nozzle 402 through an air pipe.

A method for using a training aid for training flexibility of aerobics exercises, wherein the training aid for flexibility comprises leg flexibility training and waist flexibility training;

the leg toughness training steps are as follows:

SA1, adjusting the gas spring 306 to be in an extending state, and driving the upper cross frame 309 to move upwards in a translation manner, so that the upper cross frame 309 reaches the height when the top cover 102 is closed;

SA2, placing the leg support 200 on the inserting hole 305 of the designated sliding frame 303;

SA3, two athletes sit back to back on the top cover 102, place legs on the leg supports 200 and tie up the legs through ropes, and respectively drive the support frame body 300 to turn outwards through the traction ropes in an inward leg-combining mode, so that leg ligament traction training is carried out on the athletes;

the waist toughness training steps are as follows:

SB1, adjusting the gas spring 306 to a compressed state to enable the upper cross frame 309 to reach the height when the top cover 102 is opened;

SB2, placing the circular support 500 on the inserting hole 305 of the appointed sliding frame 303;

SB3, controlling a driving motor 701 of the power module 700 to work, driving a bidirectional screw 608 to rotate through the driving motor 701, supporting a long support rod 603 through a short support rod 604, pushing an arc-shaped support plate 601, and adjusting the waist of the athlete to be in contact with the top surface of the balloon sleeve 400 after the waist is adjusted to a proper height;

SB4, the palms and soles of the athletes are respectively supported with the round supports 500 at the corresponding positions;

SB5, controlling the power module 700 to work according to the requirement, and adjusting the support strength of the waist of the athlete;

SB6, when the support is not needed, the driving motor 701 is controlled to rotate reversely, the thread sleeve 605 and the thread part are screwed together again under the action of pressure, and the air suction blades 703 are blown to perform air suction operation, so that the support effect of the arc-shaped supporting plate 601 is reduced rapidly, the volume between the balloon sleeve 400 and the lining 401 is reduced, and the height of the balloon sleeve 400 is reduced rapidly.

The working principle is as follows: during leg training: the air spring 306 is adjusted to be in an extending state, the inclined strut 304 is driven to turn outwards through the air spring 306, so that the upper transverse frame 309 is driven to move upwards and horizontally, the upper transverse frame 309 reaches the height when the top cover 102 is closed, then the leg support 200 is placed on the insertion hole 305 of the designated sliding frame 303 according to the leg length of the athlete, then the two athletes sit on the top cover 102 back to back, the legs are placed on the leg support 200 and bound through a rope, then the two athletes respectively sequentially move inwards and leg in parallel, the support frame body 300 is driven by the traction rope to turn outwards, so that the athlete is subjected to leg ligament traction training, and meanwhile, the support frame body 300 can be independently pushed to perform leg ligament training;

during waist training: the gas spring 306 is adjusted to be in a compressed state, the inclined strut 304 is driven to turn inwards through the gas spring 306, so that the upper cross frame 309 is driven to translate downwards, the upper cross frame 309 reaches the height when the top cover 102 is opened, then the round support 500 is placed on the insertion hole 305 of the designated sliding frame 303, the driving motor 701 of the power module 700 is controlled to work, the two-way screw rod 608 is driven to rotate through the driving motor 701, the two-way screw rod 608 drives the two thread sleeves 605 to move inwards after rotating, then the short strut 604 supports the long strut 603, so that the arc-shaped strut plate 601 is pushed, the integral volume of the balloon sleeve 400 is increased, meanwhile, under the blowing action of the blowing blades 703, gas is filled between the balloon sleeve 400 and the lining 401 to expand, and after the height is adjusted to be proper, sportsman's waist and balloon cover 400 top surface contact, sportsman's palm and sole support with the circle of corresponding position respectively 500, then control power module 700 work as required, move to light groove 6081 position department when thread bush 605, then stop to continue to support arc fagging 601, only carry out the action of induced drafting this moment, and at balloon cover 400 top pushing in-process, sportsman's four limbs can carry out the adjustment of position as required, when need not supporting, then control driving motor 701 antiport, under the pressure effect, thread bush 605 closes with the screw thread part is soon once more, the operation of induced drafting is carried out to the blade 703 that induced drafts simultaneously to the drum, arc fagging 601 supporting role reduces rapidly like this, and the volume also reduces between balloon cover 400 and the inside lining 401, thereby shrink balloon cover 400 height rapidly.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims (6)

1. The flexible training aid for aerobics exercises is characterized by comprising a supporting plate (100), wherein supporting legs (101) are fixed at four corners of the bottom surface of the supporting plate (100), the outer walls of the supporting legs (101) are rotatably connected with a supporting frame body (300), and the top surface of the supporting frame body (300) is connected with a leg support (200) or a round support (500) in an inserted manner;

a balloon sleeve (400) for supporting the waist of a sportsman is fixed on the top surface of the support plate (100), an internal supporting mechanism (600) for supporting the balloon sleeve (400) is arranged in the support plate (100), a power module (700) for driving the balloon sleeve (400) and the internal supporting mechanism (600) to expand is fixed on the bottom surface of the support plate (100), and top covers (102) covering the balloon sleeve (400) are rotatably connected to the two sides of the top surface of the support plate (100) through hinges;

a lining (401) is connected to the inside of the balloon sleeve (400) in a sewing mode, an air nozzle (402) connected with an external air source is fixed at the center of the bottom of the lining (401), and the air nozzle (402) is communicated with the power module (700) through an air pipe;

the center of the top surface of the supporting plate (100) is provided with strip holes (103) which are distributed in a diagonal manner, the inner supporting mechanism (600) comprises two first rotating seats (602) which are fixedly connected with the top surface of the supporting plate (100), the two first rotating seats (602) are positioned on the outer sides of short sides of the strip holes (103), and the first rotating seats (602) are rotatably connected with arc-shaped supporting plates (601) which are attached to the lining (401) through long supporting rods (603);

a two-way screw rod (608) is arranged at the lower part of the long hole (103), two ends of the two-way screw rod (608) are rotatably connected with a second rotating seat fixedly connected with the bottom surface of the supporting plate (100), the outer wall of the two-way screw rod (608) is rotatably connected with two thread sleeves (605), a short support rod (604) is rotatably connected between the thread sleeves (605) and the middle part of the long support rod (603), and one end of the two-way screw rod (608) is in transmission connection with the power module (700);

the power module (700) comprises a driving motor (701) and air suction and blowing blades (703), a blowing cover (702) is fixedly sleeved at the tail end of the driving motor (701), one end of a motor shaft of the driving motor (701) is in transmission connection with a bidirectional screw rod (608), the motor shaft of the driving motor (701) in the blowing cover (702) is in transmission connection with the air suction and blowing blades (703), and the blowing cover (702) is communicated with an air nozzle (402) through an air pipe.

2. The flexible training aid for aerobics exercises as claimed in claim 1, wherein the support frame body (300) comprises a ring (308) rotatably connected with the support leg (101), a lower cross frame (301) is fixed to the outer wall of the ring (308), universal self-locking wheels (302) are fixed to the bottom surface of the end portion, away from the ring (308), of the lower cross frame (301), the outer walls of the two sides of the lower cross frame (301) are rotatably connected with an upper cross frame (309) through two inclined support rods (304), a sliding frame (303) is slidably connected to the inside of the upper cross frame (309), a plurality of insertion holes (305) for inserting the leg supports (200) or the circular supports (500) are formed in the top surface of the sliding frame (303) at equal intervals, an air spring (306) is rotatably connected between the upper cross frame (309) and the lower cross frame (301), and a traction spring is connected between the sliding frame (303) and the upper cross frame (309).

3. The soft training aid for aerobics exercises as claimed in claim 2, wherein two round rods (104) are fixed at the center of the bottom surface of the supporting plate (100), the outer wall of each round rod (104) is rotatably connected with a guide wheel (105), the outer wall of each round ring (308) is fixed with a side connecting frame (307), and a traction rope passing through the adjacent guide wheel (105) is connected between the two side connecting frames (307) on the same side of the top cover (102).

4. The aerobics exercises flexibility training aid as claimed in claim 3, wherein the middle part and both sides of the threaded part of the bidirectional screw rod (608) are provided with smooth grooves, the outer diameter of the smooth groove is smaller than the inner diameter of the threaded sleeve (605), the length of the smooth groove (6081) in the middle part is larger than twice the length of the threaded sleeve (605), and the length of the smooth groove (6081) in both sides is larger than the length of the threaded sleeve (605).

5. The aerobics exercises flexibility training assistor as claimed in claim 4, wherein the bidirectional screw rod (608) is sleeved with a limiting plate (607) fixedly connected with the supporting plate (100) at the outer side of the light groove (6081), the limiting plate (607) is fixed with a first return spring (606) relative to the outer wall of the threaded sleeve (605), and one threaded sleeve (605) is fixed with a second return spring relative to the outer wall of the other threaded sleeve (605).

6. The method of using a training aid for aerobics exercises as claimed in claim 5, wherein the training aid for training for flexibility comprises a leg flexibility training and a waist flexibility training;

the leg toughness training steps are as follows:

SA1, adjusting a gas spring (306) to an extension state, driving an upper transverse frame (309) to move upwards in a translation mode, and enabling the upper transverse frame (309) to reach the height when a top cover (102) is closed;

SA2, placing the leg support (200) on the inserting hole (305) of the appointed sliding frame (303);

SA3, two athletes sit back to back on the top cover (102), place legs on the leg supports (200) and tie up the legs through ropes, and respectively drive the support frame body (300) to turn outwards through traction ropes in an inward leg-combining mode so as to carry out leg ligament traction training on the athletes;

the waist toughness training steps are as follows:

SB1, adjusting the gas spring (306) to a compressed state to enable the upper cross frame (309) to reach the height when the top cover (102) is opened;

SB2, placing the circular support (500) on the inserting hole (305) of the appointed sliding frame (303);

SB3, driving a bidirectional screw rod (608) to rotate by controlling a driving motor (701) of a power module (700) to work, supporting a long support rod (603) by a short support rod (604), pushing an arc-shaped support plate (601), and after adjusting to a proper height, contacting the waist of an athlete with the top surface of a balloon sleeve (400);

SB4, supporting the palms and soles of the athletes with the round supports (500) at the corresponding positions respectively;

SB5, controlling the power module (700) to work according to the requirement, and adjusting the support strength of the waist of the athlete;

SB6, when the support is not needed, the driving motor (701) is controlled to rotate reversely, the thread sleeve (605) is screwed with the thread part again under the action of pressure, and the air suction blade (703) performs air suction operation, so that the support effect of the arc-shaped support plate (601) is reduced rapidly, the volume between the balloon sleeve (400) and the lining (401) is reduced, and the height of the balloon sleeve (400) is reduced rapidly.

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