Multifunctional aerobics physical training teaching device

Abstract

The invention relates to the technical field of physical training teaching equipment, in particular to a multifunctional aerobics physical training teaching device which comprises an adjusting training structure, a pull rope, a lifting ring, a bearing adjusting structure, a butt joint shaft sleeve and a back supporting structure. The side, away from the back supporting structure, of the bearing adjusting structure is fixedly connected with an adjusting training structure, a butt-joint shaft sleeve is arranged on the bearing adjusting structure, a pull rope is connected to the butt-joint shaft sleeve, the side end of the pull rope is connected with a lifting ring, and the pull rope, the lifting ring and the butt-joint shaft sleeve are guided through the bearing adjusting structure and the adjusting training structure; the training structure is adjusted and used for multifunctional exercise, the pull rope is guided to the rope penetrating wheel through the guide wheel, the pull rope continues to be guided through the second rotating wheel, and the balancing weight is supported and moved, so that the balancing weight slides on the limiting rail frame in a limited mode. Through the arrangement of the structure, body shape training teaching work can be conveniently carried out.

Description

Technical Field

[0001] The invention relates to the technical field of body training teaching equipment, in particular to a multifunctional aerobics body training teaching device. Background Art

[0002] Aerobics is an aerobic exercise characterized by long-lasting, low-to-moderate intensity full-body exercise. It primarily trains the cardiopulmonary function of the practitioner, serves as the foundation of aerobic endurance, and places high demands on the athlete's physical fitness.

[0003] The aerobics body training teaching device facilitates aerobics body training work, better helps to improve the body's flexibility, and facilitates subsequent aerobics teaching work.

[0004] According to Chinese patent publication number CN113491619A, a multifunctional aerobics body training teaching device is provided, which belongs to the field of sports equipment technology and includes a support part, a drive part, an adjustment part, a thigh pressing part, a leg support plate and a top support part. The leg support plate is hingedly arranged on one side of the support part, and the drive part and the top support part are both arranged inside the support part. One end of the top support part is connected to the leg support plate, and the output end of the drive part is movably connected to the top support part. The drive part can drive the top support part to move along the inside of the support part, and is used to lift the leg support plate and drive the leg support plate to rotate along one side of the support part. Compared with the existing technology, it can interrupt the stretching training in time according to the stretching condition of the leg ligaments to prevent the ligaments from being overstretched and causing injuries. It has the advantages of simple structure, easy use, and flexible and reliable operation.

[0005] At present, the existing aerobics body training teaching devices and the above-mentioned cases are not convenient for multi-functional use when in use. They are often used in a single method and cannot perform multi-position training. Therefore, improvements are made to address the above problems. Summary of the Invention

[0006] In view of the problems in the prior art, the present invention provides a multifunctional aerobics body training teaching device.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a multifunctional aerobics body training and teaching device, comprising an adjustment training structure, a pull rope, a lifting ring, a load-bearing adjustment structure, a docking sleeve, and a back support structure, wherein the side end of the load-bearing adjustment structure is fixedly connected to the back support structure, the side of the load-bearing adjustment structure facing away from the back support structure is fixedly connected to the adjustment training structure, and the load-bearing adjustment structure is provided with a docking sleeve, the docking sleeve is connected to the pull rope, and the side end of the pull rope is connected to the lifting ring, and the pull rope, the lifting ring, and the docking sleeve are guided by the load-bearing adjustment structure and the adjustment training structure;

[0008] Adjustable training structure for multifunctional exercise. The pull rope is guided to the rope threading wheel through the guide wheel, and then guided by the second rotating wheel to support and move the counterweight block, so that the counterweight block slides within the limit position on the limit track frame.

[0009] The load-bearing adjustment structure can adjust the counterweight. The docking shaft is plugged into the matching displacement block, and the matching displacement block is provided with multiple blocks. The matching displacement block is slidably adjusted on the grooved base frame, and the grooved base frame is provided with a rod body for limiting the movement of the matching displacement block.

[0010] The back support structure is used to support the back, and the rotation adjustment seat is fixed to the second support base through a fastening pin, and the rotation sleeve seat adjusts the angle of the sponge sleeve through a connecting rod.

[0011] Specifically, the adjustment training structure includes a fastening frame, a butt hinge seat, a first support base, a protective plate, a spring protection seat, a support end plate, a column block, a first bracket and a first rotating wheel. The first support base is fixedly connected to the protective plate, the protective plate is elastically connected to the spring protection seat, the side end of the spring protection seat is butt-jointed with a support end plate, the central upper end of the first support base is fixedly connected to the column block, the column block is fixedly connected to the first bracket, and the first bracket is rotatably connected to the first rotating wheel.

[0012] Specifically, the top of the column block is fixedly connected with a butt hinge rod, the lower end of the butt hinge rod is hinged with a fastening frame, the lower end of the fastening frame is hinged with a butt hinge seat, and the butt hinge rod, the fastening frame and the butt hinge seat are used to support the column block.

[0013] The lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism.

[0014] Specifically, the limiting track frame is slidably connected to a counterweight block, the side end of the counterweight block is fixedly connected to a rope threading wheel, the top of the limiting track frame is fixedly connected to a second bracket, and the second bracket is rotatably connected to a second rotating wheel.

[0015] Specifically, the load-bearing adjustment structure includes a load-bearing bracket, a positioning screw and a support track plate. The load-bearing bracket is slidably connected to the support track plate, and the positioning screw is threadedly connected to the load-bearing bracket. The positioning screw passes through the load-bearing bracket and docks with the support track plate.

[0016] Specifically, the load-bearing adjustment structure also includes a groove-type base frame, a mating displacement block and a docking shaft. The lower end of the supporting track plate is fixedly connected to the groove-type base frame. A plurality of mating displacement blocks are provided on the groove-type base frame. The mating displacement blocks can be slidably adjusted on the groove-type base frame, and a docking shaft is plugged into the mating displacement blocks.

[0017] Specifically, the back support structure includes a sponge cover, a connecting rod, a rotating shaft sleeve seat, a rotating adjustment seat, a fastening pin and a second supporting base frame, the second supporting base frame is rotatably connected to the rotating adjustment seat, the rotating adjustment seat is threadedly connected to the fastening pin, and the fastening pin passes through the rotating adjustment seat and docks with the second supporting base frame to limit and fix the rotating adjustment seat, the center front end of the rotating adjustment seat is fixedly connected to the rotating shaft sleeve seat, the upper end of the rotating shaft sleeve seat is fixedly connected to the connecting rod, and the sponge cover is sleeved on the connecting rod. The structural setting of the back support structure facilitates the back support work, and the second supporting base frame The upper rotation is provided with a rotation adjustment seat, so that the rotating shaft sleeve seat drives the connecting rod to adjust, and the sponge sleeve follows the connecting rod to adjust, so that the back support work is performed by the sponge sleeve. After adjusting to the appropriate position, the fastening pin is screwed to fix the rotation adjustment seat with the second support base frame, thereby realizing the fixing of the position of the connecting rod and the sponge sleeve, and the bearing bracket can slide on the support track plate, and the position of the bearing bracket is tightened by screwing the positioning screw, which is convenient for adjusting the sitting position, and the user supports the feet with the support end plate, and the setting of the fastening frame is convenient for the support and coordination of the column block.

[0018] Specifically, the side end of the second supporting base is fixed to the trough base, the side end of the trough base is fixedly connected to the first supporting base, the docking sleeve is fixed to the docking shaft, a pull rope is connected to the docking sleeve, and the pull rope is connected to the second rotating wheel through the guide wheel and the rope threading wheel.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention facilitates multifunctional use by adjusting the structural setting of the training structure. The user can pass the rope through the two first wheels and can directly pull it. The user can now stretch it through the rope. At the same time, the pull rope is connected to the second wheel through the guide wheel and the rope threading wheel. The second wheel is connected with a pulling ring. The user can train his arms by pulling the pulling ring. At this time, the rope threading wheel and the counterweight block move on the limiting track frame to realize the counterweight work. The pull rope is connected to the docking shaft sleeve through the guide wheel, the docking shaft sleeve is connected to the docking plug shaft, and the docking plug shaft is connected to the matching displacement block, which can cooperate to perform counterweight stretching work and can perform different counterweight adjustment work.

[0021] Second, the present invention facilitates the back support work through the structural setting of the back support structure. A rotating adjustment seat is rotatably provided on the second support base frame, so that the rotating shaft sleeve seat drives the connecting rod to adjust, and the sponge sleeve follows the connecting rod to adjust, so that the back support work is performed through the sponge sleeve. After adjusting to the appropriate position, the fastening pin is screwed to fix the rotating adjustment seat and the second support base frame to achieve the fixed position of the connecting rod and the sponge sleeve, and the bearing bracket can slide on the support track plate, and the position of the bearing bracket is tightened by screwing the positioning screw, which facilitates the adjustment of the sitting position, and the user supports the feet with the support end plate. The setting of the fastening frame facilitates the support and coordination of the column block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from a side perspective;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the main body of the present invention from a rear perspective;

[0026] Figure 4 A three-dimensional diagram of the adjustment training structure of the present invention;

[0027] Figure 5 A three-dimensional side view of the adjustment training structure of the present invention;

[0028] Figure 6 It is a three-dimensional diagram of the load-bearing adjustment structure of the present invention;

[0029] Figure 7 It is a three-dimensional side view of the load-bearing adjustment structure of the present invention;

[0030] Figure 8 It is a three-dimensional diagram of the back support structure of the present invention.

[0031] In the figure: 1-adjustment training structure, 2-pull rope, 3-lifting ring, 4-bearing adjustment structure, 5-docking sleeve, 6-back support structure, 7-docking hinge rod, 8-fastening frame, 9-docking hinge seat, 10-first support base, 11-protection plate, 12-spring protection seat, 13-support end plate, 14-column block, 15-first bracket, 16-first rotating wheel, 17-second bracket, 18-second rotating wheel, 19-limiting track frame, 20-rope threading wheel, 21-counterweight block, 22-guide wheel, 23-rotation adjustment shaft, 24-docking plate, 25-bearing bracket, 26-positioning screw, 27-support track plate, 28-groove base, 29-matching displacement block, 30-docking plug shaft, 31-sponge sleeve, 32-connecting rod, 33-rotation sleeve seat, 34-rotation adjustment seat, 35-fastening pin, 36-second support base. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] Example

[0035] like Figure 1-8 As shown, a multifunctional aerobics body training and teaching device of the present invention includes an adjustment training structure 1, a pull rope 2, a lifting ring 3, a load-bearing adjustment structure 4, a docking sleeve 5 and a back support structure 6. The side end of the load-bearing adjustment structure 4 is fixedly connected to the back support structure 6, and the side of the load-bearing adjustment structure 4 facing away from the back support structure 6 is fixedly connected to the adjustment training structure 1, and the load-bearing adjustment structure 4 is provided with a docking sleeve 5, the docking sleeve 5 is connected to the pull rope 2, and the side end of the pull rope 2 is connected to the lifting ring 3. The pull rope 2, the lifting ring 3, and the docking sleeve 5 are guided by the load-bearing adjustment structure 4 and the adjustment training structure 1;

[0036] The training structure 1 is adjusted for multifunctional exercise. The pull rope 2 is guided to the rope threading wheel 20 by the guide wheel 22 and further guided by the second rotating wheel 18 to support and move the counterweight 21 so that the counterweight 21 slides within the limit position on the limit track frame 19.

[0037] The load-bearing adjustment structure 4 is capable of adjusting the counterweight. The docking shaft 30 is plugged into the matching displacement block 29, and the matching displacement block 29 is provided with multiple pieces. The matching displacement block 29 is slidably adjusted on the grooved base frame 28, and the grooved base frame 28 is provided with a rod body for limiting the movement of the matching displacement block 29;

[0038] The back support structure 6 provides back support, and the rotation adjustment seat 34 is fixed to the second support base 36 through the fastening pin 35, and the rotation sleeve seat 33 adjusts the angle of the sponge sleeve 31 through the connecting rod 32.

[0039] The adjustment training structure 1 includes a fastening frame 8, a butt hinge seat 9, a first supporting base frame 10, a protective plate 11, a spring protection seat 12, a support end plate 13, a column block 14, a first bracket 15 and a first rotating wheel 16. The first supporting base frame 10 is fixedly connected with the protective plate 11, and the protective plate 11 is elastically connected with the spring protection seat 12. The side end of the spring protection seat 12 is butt-jointed with a support end plate 13. The central upper end of the first supporting base frame 10 is fixedly connected with the column block 14, and the column block 14 is fixedly connected with the first bracket 15. The first bracket 15 is rotatably connected with the first rotating wheel 16. The rope body is connected to the first rotating wheel 16 and then fastened. The user lifts the rope body and can lie on his back. At this time, the column block 14 and the first bracket 15 provide support, and the fastening frame 8 is connected and supported by the butt hinge rod 7 and the butt hinge seat 9 to realize the top support of the column block 14 and achieve high stability support.

[0040] The top of the column block 14 is fixedly connected with a butt hinge rod 7, the lower end of the butt hinge rod 7 is hinged with a fastening frame 8, and the lower end of the fastening frame 8 is hinged with a butt hinge seat 9. The butt hinge rod 7, the fastening frame 8 and the butt hinge seat 9 are used to support the column block 14.

[0041] The adjustment training structure 1 includes a second bracket 17, a second rotating wheel 18, a limiting track frame 19, a rope threading wheel 20, a counterweight block 21, a guide wheel 22, a rotation adjustment shaft 23 and a docking plate 24. The side end of the first supporting base 10 is fixedly connected to the docking plate 24, and the docking plate 24 is rotatably connected to the rotation adjustment shaft 23. The side end of the docking hinge seat 9 is fixed to the first supporting base 10 and the protective plate 11, and the side of the docking hinge seat 9 away from the protective plate 11 is fixedly connected to the limiting track frame 19. By adjusting the structural setting of the training structure 1, it is convenient to carry out multi-functional use. The user can pass the rope through the two first rotating wheels. The wheel 16 can be directly pulled, and the user can stretch it through the rope body at this time. At the same time, the pull rope 2 is connected to the second rotating wheel 18 through the guide wheel 22 and the rope threading wheel 20. The second rotating wheel 18 is connected with a pulling ring 3. The user can train his arms by pulling the pulling ring 3. At this time, the rope threading wheel 20 and the counterweight block 21 move on the limiting track frame 19 to realize the counterweight work. The pull rope 2 is connected to the docking sleeve 5 through the guide wheel 22, and the docking sleeve 5 is connected to the docking shaft 30, and the docking shaft 30 is connected to the matching displacement block 29, which can cooperate with the counterweight stretching work and can perform different counterweight adjustment work.

[0042] A counterweight 21 is slidably connected to the limiting track frame 19 , and a rope threading wheel 20 is fixedly connected to the side end of the counterweight 21 . A second bracket 17 is fixedly connected to the top of the limiting track frame 19 , and a second rotating wheel 18 is rotatably connected to the second bracket 17 .

[0043] The load-bearing adjustment structure 4 includes a load-bearing bracket 25, a positioning screw 26 and a support rail plate 27. The load-bearing bracket 25 is slidably connected to the support rail plate 27, and the positioning screw 26 is threadedly connected to the load-bearing bracket 25. The positioning screw 26 passes through the load-bearing bracket 25 and docks with the support rail plate 27. First, the position of the load-bearing bracket 25 is adjusted so that the load-bearing bracket 25 moves on the support rail plate 27 and is adjusted to a suitable position. The positioning screw 26 is screwed to tighten the position of the load-bearing bracket 25. At the same time, the docking shaft 30 is connected to the docking sleeve 5. The docking shaft 30 can be adjusted on the grooved base frame 28, so that the counterweight can be adjusted.

[0044] The load-bearing adjustment structure 4 also includes a groove-type base frame 28, a matching displacement block 29 and a docking shaft 30. The lower end of the support track plate 27 is fixedly connected to the groove-type base frame 28, and a plurality of matching displacement blocks 29 are provided on the groove-type base frame 28. The matching displacement block 29 can be slidably adjusted on the groove-type base frame 28, and a docking shaft 30 is inserted on the matching displacement block 29. The pull rope 2 is guided by the guide wheel 22 and connected to the rope threading wheel 20. Then the pull rope 2 is connected to the second rotating wheel 18, and the top of the pull rope 2 is connected to the lifting ring 3 to facilitate training. The user lifts the lifting ring 3 to train the hands and back. At this time, the movement of the pull rope 2 pulls the matching displacement block 29, causing the matching displacement block 29 to slide on the groove-type base frame 28, and then the counterweight block 21 is driven to cooperate with the movement through the rope threading wheel 20, so that the counterweight block 21 slides and adjusts on the limiting track frame 19, increasing the counterweight again to help exercise.

[0045] The back support structure 6 includes a sponge cover 31, a connecting rod 32, a rotating shaft sleeve seat 33, a rotating adjustment seat 34, a fastening pin 35 and a second supporting base frame 36. The second supporting base frame 36 is rotatably connected to the rotating adjustment seat 34, and the fastening pin 35 is threadedly connected to the rotating adjustment seat 34. The fastening pin 35 passes through the rotating adjustment seat 34 and docks with the second supporting base frame 36 to limit and fix the rotating adjustment seat 34. The center front end of the rotating adjustment seat 34 is fixedly connected to the rotating shaft sleeve seat 33, and the upper end of the rotating shaft sleeve seat 33 is fixedly connected to the connecting rod 32. The sponge cover 31 is sleeved on the connecting rod 32. The structural setting of the back support structure 6 facilitates the back support work. The second supporting base frame 36 The upper rotation is provided with a rotation adjustment seat 34, so that the rotating shaft sleeve seat 33 drives the connecting rod 32 to adjust, and the sponge cover 31 follows the connecting rod 32 to adjust, so that the back support work is performed by the sponge cover 31. After adjusting to the appropriate position, screwing the fastening pin 35 can fix the rotation adjustment seat 34 with the second support base frame 36 to achieve the position fixation of the connecting rod 32 and the sponge cover 31, and the bearing bracket 25 can slide on the support track plate 27. The position of the bearing bracket 25 is tightened by screwing the positioning screw 26, which is convenient for adjusting the sitting position, and the user supports the feet with the support end plate 13. The setting of the fastening frame 8 is convenient for supporting and cooperating with the column block 14.

[0046] The side end of the second supporting base 36 is fixed to the trough base 28, the side end of the trough base 28 is fixedly connected to the first supporting base 10, the docking sleeve 5 is fixed to the docking shaft 30, and the docking sleeve 5 is connected to the pull rope 2, and the pull rope 2 is connected to the second rotating wheel 18 through the guide wheel 22 and the rope threading wheel 20.

[0047] The working principle is as follows: when in use, the user first adjusts the position of the carrying bracket 25 so that the carrying bracket 25 moves on the supporting track plate 27, adjusts it to a suitable position, screws the positioning screw 26 to tighten the position of the carrying bracket 25, and at the same time connects the docking shaft 30 to the docking sleeve 5. The docking shaft 30 can be adjusted on the grooved base frame 28, thereby adjusting the counterweight;

[0048] Afterwards, the pull rope 2 is guided by the guide wheel 22 and connected to the rope threading wheel 20, and then the pull rope 2 is connected to the second rotating wheel 18, and the top of the pull rope 2 is connected to the lifting ring 3, which is convenient for training. The user lifts the lifting ring 3 to train the hands and back. At this time, the movement of the pull rope 2 pulls the matching displacement block 29, causing the matching displacement block 29 to slide on the groove-shaped base frame 28. Then, the rope threading wheel 20 drives the counterweight block 21 to move in coordination, so that the counterweight block 21 slides and adjusts on the limiting track frame 19, and the counterweight is increased again to help exercise;

[0049] The user can also connect the rope to the first rotating wheel 16 and then tighten the connection. The user can lift the rope to lie on his back. At this time, the column block 14 and the first bracket 15 provide support, and the fastening frame 8 is connected and supported by the docking hinge rod 7 and the docking hinge seat 9 to achieve top support work for the column block 14, achieving highly stable support work;

[0050] During exercise, the user can adjust the back support structure 6. At this time, the rotating adjustment seat 34 is rotated and adjusted on the second support base 36. After adjusting to the appropriate position, the fastening pin 35 is screwed to fix the rotating adjustment seat 34 and the second support base 36, so that the rotating shaft sleeve seat 33 moves in coordination with the rotating adjustment seat 34. The rotating shaft sleeve seat 33 is fixed to the connecting rod 32 to achieve adjustment of the sponge cover 31. The sponge cover 31 supports the back, which is convenient for the user to support the work and complete the work.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional aerobics body training teaching device, characterized by: The invention comprises an adjustment training structure (1), a pull rope (2), a lifting ring (3), a load-bearing adjustment structure (4), a docking sleeve (5) and a back support structure (6); the side end of the load-bearing adjustment structure (4) is fixedly connected to the back support structure (6); the side of the load-bearing adjustment structure (4) away from the back support structure (6) is fixedly connected to the adjustment training structure (1); the load-bearing adjustment structure (4) is provided with a docking sleeve (5); the docking sleeve (5) is connected to the pull rope (2); the side end of the pull rope (2) is connected to the lifting ring (3); the pull rope (2), the lifting ring (3) and the docking sleeve (5) are guided by the load-bearing adjustment structure (4) and the adjustment training structure (1); The training structure (1) is adjusted for multifunctional exercise. The pull rope (2) is guided to the rope threading wheel (20) through the guide wheel (22), and is further guided by the second rotating wheel (18) to support and move the counterweight (21), so that the counterweight (21) slides within the limit position on the limit track frame (19); The bearing adjustment structure (4) is capable of performing counterweight adjustment. The docking shaft (30) is plugged into the matching displacement block (29), and the matching displacement block (29) is provided with multiple blocks. The matching displacement block (29) is slidably adjusted on the grooved base frame (28), and the grooved base frame (28) is provided with a rod body for limiting the movement of the matching displacement block (29); The back support structure (6) is used to support the back, and the rotation adjustment seat (34) is fixed to the second support base (36) through a fastening pin (35), and the rotation sleeve seat (33) adjusts the angle of the sponge sleeve (31) through a connecting rod (32).

2. A multifunctional aerobics body training teaching device according to claim 1, characterized in that: The adjustment training structure (1) comprises a fastening frame (8), a butt joint seat (9), a first supporting base frame (10), a protective plate (11), a spring protection seat (12), a support end plate (13), a column block (14), a first bracket (15) and a first rotating wheel (16); the first supporting base frame (10) is fixedly connected to the protective plate (11); the protective plate (11) is elastically connected to the spring protection seat (12); the side end of the spring protection seat (12) is butt-jointed with the support end plate (13); the central upper end of the first supporting base frame (10) is fixedly connected to the column block (14); the column block (14) is fixedly connected to the first bracket (15); and the first rotating wheel (16) is rotatably connected to the first bracket (15).

3. A multifunctional aerobics body training teaching device according to claim 2, characterized in that: The top of the column block (14) is fixedly connected with a butt hinge rod (7), the lower end of the butt hinge rod (7) is hingedly provided with a fastening frame (8), the lower end of the fastening frame (8) is hingedly provided with a butt hinge seat (9), and the butt hinge rod (7), the fastening frame (8) and the butt hinge seat (9) are used to support the column block (14).

4. A multifunctional aerobics body training teaching device according to claim 3, characterized in that: The adjustment training structure (1) comprises a second bracket (17), a second rotating wheel (18), a limiting track frame (19), a rope threading wheel (20), a counterweight (21), a guide wheel (22), a rotation adjustment shaft (23) and a docking plate (24); the side end of the first supporting base (10) is fixedly connected to the docking plate (24); the docking plate (24) is rotatably connected to the rotation adjustment shaft (23); the side end of the docking hinge seat (9) is fixed to the first supporting base (10) and the protective plate (11); and the side of the docking hinge seat (9) facing away from the protective plate (11) is fixedly connected to the limiting track frame (19).

5. A multifunctional aerobics body training teaching device according to claim 4, characterized in that: The position-limiting track frame (19) is slidably connected to a counterweight block (21), a side end of the counterweight block (21) is fixedly connected to a rope threading wheel (20), the top of the position-limiting track frame (19) is fixedly connected to a second bracket (17), and the second bracket (17) is rotatably connected to a second rotating wheel (18).

6. A multifunctional aerobics body training teaching device according to claim 5, characterized in that: The load-bearing adjustment structure (4) comprises a load-bearing bracket (25), a positioning screw (26) and a support track plate (27); the load-bearing bracket (25) is slidably connected to the support track plate (27); the load-bearing bracket (25) is threadedly connected to the positioning screw (26); and the positioning screw (26) passes through the load-bearing bracket (25) and docks with the support track plate (27).

7. A multifunctional aerobics body training teaching device according to claim 6, characterized in that: The load-bearing adjustment structure (4) also includes a groove-type base frame (28), a matching displacement block (29) and a docking shaft (30). The lower end of the support track plate (27) is fixedly connected to the groove-type base frame (28). The groove-type base frame (28) is provided with a plurality of matching displacement blocks (29). The matching displacement blocks (29) can be slidably adjusted on the groove-type base frame (28), and the matching displacement blocks (29) are plugged with a docking shaft (30).

8. The multifunctional aerobics body training teaching device according to claim 7, characterized in that: The back support structure (6) comprises a sponge cover (31), a connecting rod (32), a rotating shaft sleeve seat (33), a rotating adjustment seat (34), a fastening pin (35) and a second supporting base frame (36); the second supporting base frame (36) is rotatably connected to the rotating adjustment seat (34); the rotating adjustment seat (34) is threadedly connected to the fastening pin (35); and the fastening pin (35) passes through the rotating adjustment seat (34) and docks with the second supporting base frame (36) to limit and fix the rotating adjustment seat (34); the central front end of the rotating adjustment seat (34) is fixedly connected to the rotating shaft sleeve seat (33); the upper end of the rotating shaft sleeve seat (33) is fixedly connected to the connecting rod (32); and the sponge cover (31) is sleeved on the connecting rod (32).

9. The multifunctional aerobics body training teaching device according to claim 8, characterized in that: The side end of the second supporting base (36) is fixed to the grooved base (28), the side end of the grooved base (28) is fixedly connected to the first supporting base (10), the docking sleeve (5) is fixed to the docking shaft (30), a pull rope (2) is connected to the docking sleeve (5), and the pull rope (2) is connected to the second rotating wheel (18) through a guide wheel (22) and a rope threading wheel (20).

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