Ankle joint and wrist joint linkage exerciser

Abstract

According to the ankle joint and wrist joint linkage exerciser, a handle is rotated by hand to rotate relative to a handle mounting rod, and a handle sleeve is rotated by hand to rotate relative to a handle framework, so that the wrist joint is exercised; meanwhile, the foot fixing frame can rotate based on the rotating connecting assembly by applying force through the foot, and active exercise on the ankle joint is achieved; moreover, force is applied by hands, and the armrest frame is rotated to drive the foot fixing frame to rotate based on the rotary connecting assembly, so that passive exercise of ankle joints is realized; therefore, the ankle joint and wrist joint linkage exerciser realizes linkage exercise of the ankle joint and the wrist joint by a set of small exerciser, so that the use convenience is improved, the ankle joint can be passively exercised, the wrist joint can be synchronously exercised, and the exercise efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and in particular relates to a linkage exerciser for ankle joints and wrist joints. Background Art

[0002] In the fields of fitness and sports rehabilitation, small ankle joint exercisers and small wrist joint exercisers are often used to exercise and rehabilitate athletes' ankle joints and wrist joints, respectively.

[0003] At present, small ankle joint exercisers and small wrist joint exercisers are independent of each other. Not only can they not perform linked exercises, but they need to use two sets of small exercisers for training respectively, which is not convenient to use. In addition, for athletes with serious ankle injuries, they need to control the small ankle joint exercisers by hand to perform passive exercises and rehabilitation on the ankle joint. Therefore, they cannot exercise the wrist joint synchronously while exercising the ankle joint, resulting in longer exercise time and unsatisfactory exercise efficiency.

[0004] Solving the above problems has become a top priority. Utility Model Content

[0005] In view of this, the utility model provides an ankle joint and wrist joint linkage exerciser to solve the technical problem in the prior art that a set of small exercisers cannot perform linkage exercise on the ankle joint and the wrist joint.

[0006] The technical solution is as follows:

[0007] A linkage exerciser for ankle and wrist joints comprises a base, a foot fixing frame which is rotatably mounted on the base along a spherical surface by a rotating connecting assembly, and a calf fixing frame which is adjustably mounted on the base. The armrest frame also comprises an armrest frame which can be raised and lowered and adjusted. The upper end of the armrest frame has a handle mounting rod extending to both sides, and the two ends of the handle mounting rod are respectively hinged to the handle frames of the corresponding handles, and the handle sleeves of each handle can be rotatably mounted on the corresponding handle frames, respectively. The lower end of the armrest frame is hinged to the foot fixing frame, and is provided with a first locking bolt which can lock or unlock the relative positions of the two. When the first locking bolt locks the relative positions of the armrest frame and the foot fixing frame, the armrest frame can drive the foot fixing frame to rotate on a spherical surface.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] By adopting the ankle and wrist joint linkage exerciser provided by the utility model, the handle is rotated by hand to rotate it relative to the handle mounting rod, and the handle cover is rotated by hand to rotate it relative to the handle frame, so as to exercise the wrist joint; at the same time, by applying force with the foot, the foot fixing frame can be rotated based on the rotating connection component, so as to achieve active exercise of the ankle joint; and by applying force with the hand, the handrail frame is driven to rotate the foot fixing frame based on the rotating connection component by rotating the hand, so as to achieve passive exercise of the ankle joint; therefore, the ankle and wrist joint linkage exerciser realizes a set of small exercisers for linkage exercise of the ankle and wrist joints, which not only improves the convenience of use, but also can perform synchronous exercise on the wrist joint while performing passive exercise on the ankle joint, thereby improving the efficiency of exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of an ankle joint and wrist joint linkage exerciser;

[0011] Figure 2 It is a schematic diagram of the ankle and wrist joint linkage exerciser swinging left and right;

[0012] Figure 3 It is a schematic diagram of the ankle and wrist joint linkage exerciser swinging back and forth;

[0013] Figure 4 It is a schematic diagram of the ankle and wrist joint linkage exerciser when it is skewed and swung;

[0014] Figure 5 It is a schematic diagram of the matching relationship between the spherical base and the front pedal;

[0015] Figure 6 It is a schematic diagram of the matching relationship between the ball head base and the mounting base. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] refer to Figure 1-Figure 4 The ankle and wrist joint linkage exerciser shown mainly comprises a base 1, a foot fixing frame 2, a calf fixing frame 3 and an armrest frame 4. The foot fixing frame 2 is mounted on the base 1 through a rotating connection assembly, and the foot fixing frame 2 can rotate along a spherical surface under the guidance of the rotating connection assembly, thereby exercising the ankle joint. The calf fixing frame 3 can be adjustedly mounted on the base 1, thereby adapting to the position of the foot fixing frame 2.

[0018] The armrest frame 4 can be adjusted in lifting and lowering. The upper end of the armrest frame 4 has a handlebar mounting rod 4a extending to both sides. The two ends of the handlebar mounting rod 4a are respectively hinged with the handlebar frame 5a of the corresponding handle 5, so that the handle 5 can swing along the handlebar mounting rod 4a in an approximately forward and backward direction to achieve the "flip" exercise of the wrist joint. In addition, the handlebar cover 5b of each handle 5 can be rotatably mounted on the corresponding handlebar frame 5a, so that the "rotation" exercise of the wrist joint can be achieved. In addition, the lower end of the armrest frame 4 is hinged on the foot fixing frame 2, and a first locking bolt 6 that can lock or unlock the relative position of the two is installed. When the first locking bolt 6 locks the relative position of the armrest frame 4 and the foot fixing frame 2, the armrest frame 4 can drive the foot fixing frame 2 to rotate on the spherical surface. Therefore, by applying force by hand, the foot fixing frame 2 is driven to rotate based on the rotating connection component by rotating the armrest frame 4, so as to achieve passive exercise of the ankle joint.

[0019] Therefore, the ankle and wrist joint linkage exerciser realizes the linkage exercise of the ankle and wrist joints by a small exerciser, which not only improves the convenience of use, but also can perform synchronous exercise on the wrist joint while passively exercising the ankle joint, thereby improving the efficiency of exercise.

[0020] It should be pointed out that the handle cover 5b in this embodiment can be rotatably mounted on the corresponding handle frame 5a through a bearing, which ensures that the handle cover 5b can rotate smoothly, does not get stuck, and is durable.

[0021] See also Figure 1 , each handle frame 5a is hinged in the rotation installation slot 4a1 of the handle installation rod 4a through the corresponding rotation installation bolt 7, and the end of each rotation installation bolt 7 is installed with a locking nut 8 for unlocking or locking the corresponding handle frame 5a. Tightening the locking nut 8 can force the groove walls on both sides of the rotation installation slot 4a1 to clamp the handle frame 5a, so that the handle frame 5a cannot rotate and is locked; conversely, loosening the locking nut 8 can make the groove walls on both sides of the rotation installation slot 4a1 loosen the handle frame 5a, so that the handle frame 5a can rotate freely. Through such a design, it is possible to lock when the "flip" exercise of the wrist joint is not required, meeting the requirements of the purpose of diversified training.

[0022] Specifically, the handle frame 5a includes a handle cover mounting portion 5a1 of a cylindrical structure and a hinged mounting plate 5a2 integrally formed at one end of the handle cover mounting portion 5a1 near the handle frame 5a. After each hinged mounting plate 5a2 is respectively inserted into the corresponding rotation mounting groove 4a1, it can be rotatably mounted on the corresponding rotation mounting bolt 7. When the locking nut 8 is tightened, the groove walls on both sides of the rotation mounting groove 4a1 clamp the handle cover mounting portion 5a1. Among them, the hinged mounting plate 5a2 is a plate-like structure, which is more conducive to clamping the groove walls on both sides of the rotation mounting groove 4a1, and the locking reliability is higher. The handle cover mounting portion 5a1 is a cylindrical structure, which is more convenient for the installation of the bearing and the handle cover 5b. In addition, the handle frame 5a is an integrally formed structure, which has a higher structural strength and is durable.

[0023] See also Figure 1 The handrail frame 4 also includes a telescopic rod 4b and a telescopic sleeve 4c. The upper end of the telescopic rod 4b is vertically fixedly connected to the middle part of the handle mounting rod 4a, so that the handrail frame 4 is in a "T" shape as a whole, and the structural design is reasonable. The upper end of the telescopic sleeve 4c can be slidably sleeved on the lower end of the telescopic rod 4b and can be locked by a locking structure. Specifically, the locking structure includes threaded holes uniformly distributed along the length direction at the lower end of the telescopic rod 4b, bolt holes opened at the upper end of the telescopic sleeve 4c, and second locking bolts 10 adapted to each threaded hole. When the bolt hole is facing any threaded hole, the second locking bolt 10 can be screwed into the threaded hole after passing through the bolt hole, thereby locking the relative position of the telescopic rod 4b and the telescopic sleeve 4c. Such a locking structure is very reliable. At the same time, the telescopic rod 4b and the telescopic sleeve 4c can be unlocked by loosening or unscrewing the second locking bolt 10, thereby adjusting the relative position of the telescopic rod 4b and the telescopic sleeve 4c, and realizing the overall degree adjustment of the two.

[0024] In this embodiment, the telescopic rod 4b and the telescopic sleeve 4c both adopt a hollow tubular structure, which not only ensures the structural strength but also achieves the lightweight design requirements.

[0025] See also Figure 1 and Figure 5 The front end of the foot fixing frame 2 is provided with a U-shaped bracket 2c with an opening facing upward, and the lower end of the telescopic sleeve 4c is rotatably mounted on the U-shaped bracket 2c through two coaxially arranged first locking bolts 6. When the two first locking bolts 6 are both tightened on the telescopic sleeve 4c, the two side plates of the U-shaped bracket 2c clamp the telescopic sleeve 4c, thereby locking the handrail frame 4 so that the handrail frame 4 cannot rotate. Conversely, when the two first locking bolts 6 are loosened, the two side plates of the U-shaped bracket 2c no longer clamp the telescopic sleeve 4c, thereby unlocking the handrail frame 4 so that the handrail frame 4 can rotate freely. By providing the U-shaped bracket 2c, the handrail frame 4 can be locked or unlocked more reliably in cooperation with the two first locking bolts 6.

[0026] See also Figure 1-Figure 6 The rotating connection assembly includes a ball head base 11 that can be installed on the base 1 in a lifting manner, a spherical base 12 that can be installed on the ball head base 11 in a rolling manner, and two first rotating support bolts 13 that can lock or unlock the ball head base 11. The foot fixing frame 2 is fixedly installed on the top of the spherical base 12. The spherical base 12 is a spherical structure. The spherical base 12 and the ball head base 11 together constitute a structure similar to a ball joint. Since the spherical base 12 can roll along the spherical surface in the ball head base 11, the ankle joint can be exercised when the foot is fixed on the foot fixing frame 2.

[0027] The base 1 has two vertical risers 1a extending upward, the two vertical risers 1a are arranged opposite to each other, and are each provided with a plurality of bolt limiting holes 1b matched with the first rotation support bolts 13 in the vertical direction. The bolt limiting holes 1b of the two vertical risers 1a are coaxially arranged one by one. Connecting sleeves 11a respectively matched with the corresponding shaft sleeves of the vertical risers 1a are arranged opposite to each other on both sides of the ball head base 11. The two connecting sleeves 11a are each provided with two first bolt matching holes 11b. The two first bolt matching holes 11b of each connecting sleeve 11a can be communicated with the two ends of any bolt limiting hole 1b of the corresponding vertical riser 1a. When the two first bolt matching holes 11b of each connecting sleeve 11a are respectively communicated with the two ends of the corresponding bolt limiting hole 1b, the two first rotation support bolts 13 can be respectively penetrated through the corresponding bolt limiting hole 1b and the two first bolt matching holes 11b, thereby locking the installation height of the spherical base 12 on the ball head base 11. It should be pointed out that the first bolt matching hole 11 b is a threaded hole that is threadably matched with the first rotation support bolt 13 , thereby ensuring the reliability of the installation of the ball head base 11 .

[0028] A second bolt matching hole 11c which can be threadedly matched with the second rotating support bolt 14 is provided on the ball head base 11. The central axis of the second bolt matching hole 11c and the connecting line of the two first bolt matching holes 11b are cross-distributed on the same horizontal plane. Two front and rear swing support holes 12a which are respectively matched with the corresponding first bolt matching holes 11b and one left and right swing support hole 12b which is respectively matched with the corresponding second bolt matching hole 11c are provided along the circumference of the spherical base 12.

[0029] When the foot fixing frame 2 is in a horizontal state, the two front and rear swing support holes 12a are connected to the two first bolt matching holes 11b, and the left and right swing support holes 12b are connected to the second bolt matching holes 11c. At this time, there are the following three situations:

[0030] If the two first rotation support bolts 13 are respectively withdrawn from the corresponding front and rear swing support holes 12a, and the second rotation support bolt 14 is withdrawn from the left and right swing support hole 12b, the spherical base 12 can roll along the spherical surface relative to the ball head base 11. In this case, the ankle joint can rotate arbitrarily.

[0031] If the two first rotation support bolts 13 are respectively screwed into the corresponding front and rear swing support holes 12a, and the second rotation support bolts 14 are withdrawn from the left and right swing support holes 12b, the spherical base 12 can swing forward and backward relative to the ball head base 11. In this case, the ankle joint can swing forward and backward.

[0032] If the two first rotation support bolts 13 are respectively withdrawn from the corresponding front and rear swing support holes 12a, and the second rotation support bolt 14 is screwed into the left and right swing support hole 12b through the second bolt matching hole 11c, the spherical base 12 can swing left and right relative to the ball head base 11. In this case, the ankle joint can swing left and right.

[0033] It should be pointed out that the front and rear swing support holes 12a and the left and right swing support holes 12b are not threaded holes, and the hole walls are smooth. After the first rotation support bolt 13 is screwed into the front and rear swing support hole 12a, the spherical base 12 can rotate freely along the rotation axis of the first rotation support bolt 13. After the second rotation support bolt 14 is screwed into the left and right swing support hole 12b, the spherical base 12 can rotate freely along the rotation axis of the second rotation support bolt 14.

[0034] Through the above design, it is possible to design freely according to the needs of exercise and rehabilitation, thereby improving flexibility.

[0035] See also Figure 4-Figure 6 The second bolt matching hole 11c and one of the first bolt matching holes 11b are provided with a third bolt matching hole 11d which is threadedly matched with the second rotation support bolt 14. The third bolt matching hole 11d is in the same plane as the central axis of the first bolt matching hole 11b and the second bolt matching hole 11c. A plurality of skewed swing threaded holes 12c are provided along the circumference of the spherical base 12. Each skewed swing threaded hole 12c is in the same plane as the central axis of the left-right swing support hole 12b and the front-back swing support hole 12a.

[0036] When the two first rotation support bolts 13 respectively withdraw from the corresponding front and rear swing support holes 12a, and the third bolt matching hole 11d is connected to one of the skewed swing threaded holes 12c, the second rotation support bolt 14 is screwed into the corresponding skewed swing threaded hole 12c through the third bolt matching hole 11d, and the spherical base 12 can swing along the central axis of the second rotation support bolt 14.

[0037] Similarly, the oblique swing threaded hole 12 c is not a threaded hole, and the hole wall is smooth. After the second rotation support bolt 14 is screwed into the oblique swing threaded hole 12 c, the spherical base 12 can rotate freely along the rotation axis of the second rotation support bolt 14 .

[0038] Through the above design, more exercise and rehabilitation needs can be met, and the flexibility of use is further improved.

[0039] For further information, see Figure 6 A circle of annular reinforcing ribs 11e is arranged on the ball head base 11, and the connecting sleeve 11a, the first bolt matching hole 11b, the second bolt matching hole 11c and the third bolt matching hole 11d are all arranged on the annular reinforcing rib 11e, which can effectively improve the structural strength of the ball head base 11, and at the same time make the number of internal thread circles of the first bolt matching hole 11b, the second bolt matching hole 11c and the third bolt matching hole 11d more, and the problem of thread slippage is not easy to occur.

[0040] See also Figure 1 , Figure 4 and Figure 5 The foot fixing frame 2 includes a front pedal 2a fixedly mounted on the top of the ball head base 11 and a rear pedal 2b which can be telescopically mounted on the rear of the front pedal 2a. Specifically, the rear end of the front pedal 2a has a sliding support plate 2a4 extending backward, and the front end of the rear pedal 2b has a slide groove adapted to the sliding support plate 2a4. The sliding support plate 2a4 can be slidably inserted into the slide groove, which is simple and reliable. At the same time, the front end of the front pedal 2a is provided with a toe 2a5, and the rear end of the rear pedal 2b is provided with a heel 2b4, so that the foot is not easy to slip off, ensuring the reliability of wearing.

[0041] Furthermore, front strap seats 2a1 are relatively arranged on both sides of the rear end of the front pedal 2a, and rear strap seats 2b1 are relatively arranged on both sides of the front end of the rear pedal 2b, the upper ends of the front strap seats 2a1 are provided with first strap holes 2a2, the sides of the front strap seats 2a1 close to the rear strap seats 2b1 are provided with second strap holes 2a3, the upper ends of the rear strap seats 2b1 are provided with third strap holes 2b2, and the sides of the rear strap seats 2b1 close to the front strap seats 2a1 are provided with fourth strap holes 2b3, and the two first strap holes 2a2, the two third strap holes 2b2, and the second strap hole 2a3 and the fourth strap hole 2b3 located on the same side of the foot fixing frame 2 can all be connected through foot elastic straps (not shown in the figure). The elastic foot straps not only ensure the reliability and comfort of wearing and prevent the foot from slipping, but also enable the rear pedal 2b to have a continuous forward tendency, so that the foot can be worn tighter and ankle joint exercises can be performed easily.

[0042] See also Figure 1 and Figure 2 The calf fixing frame 3 includes a mounting base frame 3a and a leggings bracket 3b. The mounting base frame 3a includes an mounting cross bar 3a1 and two mounting vertical bars 3a2 in an "n"-shaped structure. The lower ends of the two mounting vertical bars 3a2 are fixedly connected to the corresponding connecting sleeves 11a. The mounting cross bar 3a1 extends in the left-right direction, and the two ends of the mounting cross bar 3a1 are respectively fixedly connected to the upper ends of the corresponding mounting vertical bars 3a2. The leggings bracket 3b includes a leggings cross bar 3b1 extending in the front-to-back direction and a leggings vertical bar 3b2 extending in the vertical direction. The front end of the leggings cross bar 3b1 is installed on the mounting cross bar 3a1 through a cross slider 3c. Therefore, the leggings bracket 3b can be adjusted front-to-back and left-to-right relative to the mounting base frame 3a to adapt to different leg shapes.

[0043] Furthermore, the rear end of the leggings cross bar 3b1 is fixedly connected to the middle of the leggings upright bar 3b2, and at least one strap mounting seat 3d is installed on the leggings upright bar 3b2, which can be raised and lowered along the strap mounting seat 3d to adapt to different lengths of legs. At the same time, each strap mounting seat 3d is located above the rear pedal 2b and is provided with a leg elastic strap (not shown in the figure), which can ensure the reliability and comfort of wearing.

[0044] See also Figure 1 The bottom of the base 1 is provided with a plurality of anti-skid feet 1b, each of which is made of rubber material, which can both absorb shock and prevent skidding. At the same time, the front end of the bottom of the base 1 is also provided with two rollers 1c arranged opposite to each other, and the lowest points of the rollers 1c are higher than the bottom surfaces of the anti-skid feet 1b, so that when the ankle and wrist joint linkage exerciser is placed flat, the rollers 1c will not touch the ground, and when the ankle and wrist joint linkage exerciser is tilted forward, it can be dragged as a whole by the two rollers 1c, which is more labor-saving.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. An ankle and wrist joint linkage exerciser, comprising a base (1), a foot fixing frame (2) mounted on the base (1) rotatably along a spherical surface by a rotating connection assembly, and a calf fixing frame (3) mounted on the base (1) adjustably, characterized in that: The invention also comprises an armrest frame (4) capable of being raised and lowered and adjusted, wherein the upper end of the armrest frame (4) has a handle mounting rod (4a) extending to both sides, and the two ends of the handle mounting rod (4a) are respectively hinged to the handle frame (5a) of the corresponding handle (5), and the handle cover (5b) of each handle (5) is respectively rotatably mounted on the corresponding handle frame (5a), and the lower end of the armrest frame (4) is hinged to the foot fixing frame (2), and is provided with a first locking bolt (6) capable of locking or unlocking the relative position of the two. When the first locking bolt (6) locks the relative position of the armrest frame (4) and the foot fixing frame (2), the armrest frame (4) can drive the foot fixing frame (2) to perform spherical rotation.

2. The ankle and wrist joint linkage exerciser according to claim 1, characterized in that: Each handle frame (5a) is hinged in a rotational mounting groove (4a1) of a handle mounting rod (4a) via a corresponding rotational mounting bolt (7), and a locking nut (8) for unlocking or locking the corresponding handle frame (5a) is installed at the end of each rotational mounting bolt (7).

3. The ankle and wrist joint linkage exerciser according to claim 2, characterized in that: The handle frame (5a) comprises a handle cover mounting portion (5a1) of a cylindrical structure and a hinged mounting plate (5a2) integrally formed at one end of the handle cover mounting portion (5a1) close to the handle frame (5a). After each hinged mounting plate (5a2) is respectively embedded in a corresponding rotating mounting groove (4a1), it can be rotatably mounted on a corresponding rotating mounting bolt (7). When the locking nut (8) is tightened, the groove walls on both sides of the rotating mounting groove (4a1) clamp the handle cover mounting portion (5a1).

4. The ankle and wrist joint linkage exerciser according to claim 1, characterized in that: The armrest frame (4) further comprises a telescopic rod (4b) and a telescopic sleeve (4c), wherein the upper end of the telescopic rod (4b) is vertically fixedly connected to the middle part of the handle mounting rod (4a), and the upper end of the telescopic sleeve (4c) can be slidably mounted on the lower end of the telescopic rod (4b) and can be locked by a locking structure, and the front end of the foot fixing frame (2) is provided with a U-shaped bracket (2c) with an opening facing upward, and the lower end of the telescopic sleeve (4c) can be rotatably mounted on the U-shaped bracket (2c) by two coaxially arranged first locking bolts (6), and when the two first locking bolts (6) are both tightened on the telescopic sleeve (4c), the two side plates of the U-shaped bracket (2c) clamp the telescopic sleeve (4c).

5. The ankle and wrist joint linkage exerciser according to claim 4, characterized in that: The locking structure comprises threaded holes evenly distributed along the length direction at the lower end of the telescopic rod (4b), bolt through holes opened at the upper end of the telescopic sleeve (4c), and second locking bolts (10) matched with the threaded holes. When the bolt through holes are directly opposite to any threaded hole, the second locking bolt (10) can be screwed into the threaded hole after passing through the bolt through holes, thereby locking the relative positions of the telescopic rod (4b) and the telescopic sleeve (4c).

6. The ankle and wrist joint linkage exerciser according to claim 1, characterized in that: The rotating connection assembly comprises a ball head base (11) which can be installed on the base (1) in a lifting manner, a spherical base (12) which can be installed on the ball head base (11) in a rolling manner, and two first rotating support bolts (13) which can lock or unlock the ball head base (11). The foot fixing frame (2) is fixedly installed on the top of the spherical base (12). The base (1) has two vertical risers (1a) extending upward. The two vertical risers (1a) are arranged opposite to each other and are each provided with a plurality of bolt limiting holes (1b) adapted to the first rotating support bolts (13) in the vertical direction. The bolt limiting holes (1b) of the two vertical risers (1a) are coaxially arranged one by one. The two sides of the ball head base (11) are respectively provided with A connecting sleeve (11a) is matched with a shaft sleeve of a corresponding vertical standpipe (1a), and the two connecting sleeves (11a) are each provided with two first bolt matching holes (11b) threadedly matched with a first rotation support bolt (13). The two first bolt matching holes (11b) of each connecting sleeve (11a) can be connected with both ends of any bolt limiting hole (1b) of the corresponding vertical standpipe (1a). When the two first bolt matching holes (11b) of each connecting sleeve (11a) are respectively connected with both ends of the corresponding bolt limiting hole (1b), the two first rotation support bolts (13) can be respectively passed through the corresponding bolt limiting hole (1b) and the two first bolt matching holes (11b), thereby locking the installation height of the spherical base (12) on the ball head base (11).

7. The ankle and wrist joint linkage exerciser according to claim 6, characterized in that: The ball head base (11) is provided with a second bolt matching hole (11c) threadedly matched with the second rotation support bolt (14); the central axis of the second bolt matching hole (11c) and the connecting line of the two first bolt matching holes (11b) are arranged in a cross shape on the same horizontal plane; two front and rear swing support holes (12a) respectively matched with the corresponding first bolt matching holes (11b) and one left and right swing support hole (12b) matched with the corresponding second bolt matching hole (11c) are provided along the circumference of the spherical base (12); When the foot fixing frame (2) is in a horizontal state, the two front and rear swing support holes (12a) are connected to the two first bolt matching holes (11b), and the left and right swing support holes (12b) are connected to the second bolt matching holes (11c). At this time: When the two first rotation support bolts (13) are respectively withdrawn from the corresponding front and rear swing support holes (12a), and the second rotation support bolt (14) is withdrawn from the left and right swing support holes (12b), the spherical base (12) can roll along the spherical surface relative to the ball head base (11); When the two first rotation support bolts (13) are respectively screwed into the corresponding front and rear swing support holes (12a), and the second rotation support bolt (14) is withdrawn from the left and right swing support holes (12b), the spherical base (12) can swing back and forth relative to the ball head base (11); When the two first rotation support bolts (13) are respectively withdrawn from the corresponding front and rear swing support holes (12a), and the second rotation support bolt (14) is screwed into the left and right swing support hole (12b) through the second bolt matching hole (11c), the spherical base (12) can swing left and right relative to the ball head base (11).

8. The ankle and wrist joint linkage exerciser according to claim 7, characterized in that: The second bolt matching hole (11c) and one of the first bolt matching holes (11b) are provided with a third bolt matching hole (11d) threadedly matched with the second rotating support bolt (14); the third bolt matching hole (11d) is in the same plane as the central axis of the first bolt matching hole (11b) and the second bolt matching hole (11c); a plurality of skewed swing threaded holes (12c) are provided along the circumference of the spherical base (12); each skewed swing threaded hole (12c) is in the same plane as the central axis of the left-right swing support hole (12b) and the front-back swing support hole (12a); When the two first rotation support bolts (13) are respectively withdrawn from the corresponding front and rear swing support holes (12a), and the third bolt matching hole (11d) is connected to one of the skewed swing threaded holes (12c), the second rotation support bolt (14) is screwed into the corresponding skewed swing threaded hole (12c) through the third bolt matching hole (11d), and the spherical base (12) can swing along the central axis of the second rotation support bolt (14).

9. The ankle and wrist joint linkage exerciser according to claim 6, characterized in that: The foot fixing frame (2) comprises a front pedal (2a) fixedly mounted on the top of the ball head base (11) and a rear pedal (2b) mounted on the rear of the front pedal (2a) so as to be telescopically mounted forward and backward, front strap seats (2a1) are arranged oppositely on both sides of the rear end of the front pedal (2a), and rear strap seats (2b1) are arranged oppositely on both sides of the front end of the rear pedal (2b), the upper ends of the front strap seats (2a1) are each provided with a first strap hole (2a2), and the front strap seats (2a1) are arranged close to the rear strap holes. A second strap hole (2a3) is provided on one side of the seat (2b1), a third strap hole (2b2) ​​is provided on the upper end of the rear strap seat (2b1), a fourth strap hole (2b3) is provided on the side of the rear strap seat (2b1) close to the front strap seat (2a1), and the two first strap holes (2a2), the two third strap holes (2b2), and the second strap hole (2a3) and the fourth strap hole (2b3) located on the same side of the foot fixing frame (2) can all be connected through foot elastic straps.

10. The ankle and wrist joint linkage exerciser according to claim 9, characterized in that: The calf fixing frame (3) comprises a mounting base frame (3a) and a leggings bracket (3b), wherein the mounting base frame (3a) comprises an mounting cross bar (3a1) and two mounting vertical bars (3a2) in an "n"-shaped structure, wherein the lower ends of the two mounting vertical bars (3a2) are fixedly connected to the corresponding connecting sleeves (11a), the mounting cross bar (3a1) extends in the left-right direction, and the two ends of the mounting cross bar (3a1) are respectively fixedly connected to the upper ends of the corresponding mounting vertical bars (3a2), and the leggings bracket (3b) comprises a mounting cross bar (3a1) and a mounting vertical bar (3a2) along the front and rear directions. The invention relates to a leggings cross bar (3b1) extending in the longitudinal direction and a leggings upright bar (3b2) extending in the vertical direction, the front end of the leggings cross bar (3b1) is installed on the mounting cross bar (3a1) through a cross slider (3c), the rear end of the leggings cross bar (3b1) is fixedly connected to the middle part of the leggings upright bar (3b2), and at least one strap mounting seat (3d) capable of being raised and lowered along the leggings upright bar (3b2) is installed on the leggings upright bar (3b2), each strap mounting seat (3d) is located above the rear pedal (2b) and is provided with a leg elastic strap.

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