Osteoporosis exercise device

Abstract

The invention relates to the technical field of medical instruments, and discloses an osteoporosis exercise device which comprises a threaded distance adjusting mechanism and a friction torque strength adjusting mechanism. A horizontal hollow column which is fixedly mounted in the component fixing opening and is of a hollow structure, and a rotating wheel which is mounted on the outer circumferential surface of the horizontal hollow column through a bearing and rotates along with the movement of the pull rope are arranged in the component fixing opening; the brake disc can form friction force on one rotating end of the rotating wheel; and the spiral spring can control the friction resistance between the brake disc and the rotating wheel. The osteoporosis exercise device can be fixedly installed on a door frame or a window frame, so that the remaining space in a room is effectively utilized, the phenomenon that the ground volume is occupied is avoided, in addition, the device can adjust the damping strength in the exercise process according to the actual situation of a patient, and the exercise effect is improved. Therefore, the application range of the equipment to different crowds is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an osteoporosis training device. Background Art

[0002] At present, osteoporosis is a group of bone diseases caused by various reasons. The bone tissue has normal calcification, and the ratio of calcium salts to matrix is ​​normal. It is a metabolic bone disease characterized by a decrease in the amount of bone tissue per unit volume. Osteoporosis can occur in different genders and at any age, and is characterized by bone pain and easy fractures. Patients with osteoporosis need to exercise appropriately to maintain bone mass and increase total calcium.

[0003] For example, Chinese patent publication number "CN221286822U" discloses an "osteoporosis exercise device," the main structure of which includes a housing with two fitness springs fixedly mounted on the bottom wall. A rack is fixedly mounted on the top of each of the fitness springs, a pull rod is fixedly mounted on the top of each of the racks, and a pull plate is fixedly mounted on the top of each of the pull rods. An adjustment mechanism is also provided within the housing. This osteoporosis exercise device, with its fitness springs and adjustment mechanism, allows users to pull the pull plate upward via a pull ring during exercise. The pull plate then drives the pull rod upward, which in turn pulls the fitness spring upward via the rack. Due to the inherent reset function of the fitness springs, the user encounters downward resistance during stretching, thereby strengthening their arm. Simultaneously, the rack drives the gear to rotate, which in turn drives the rotating rod, which in turn drives the threaded rod to rotate, causing the threaded block to move horizontally.

[0004] The above-mentioned osteoporosis exercise device has the following defects: 1. It must be installed on the ground, therefore, it needs to occupy the effective space in the room, resulting in a reduction in the indoor floor volume; second: the damping used for exercise cannot be adjusted according to the actual situation of the patient, resulting in its low adaptability to exercise intensity. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an osteoporosis exercise device that can be fixedly installed on a door frame or window frame, thereby effectively utilizing the remaining space in the room and not occupying the ground volume. In addition, the device can adjust the damping intensity during the exercise process according to the patient's actual situation, thereby improving the applicability of the equipment to different groups of people and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an osteoporosis exercise device, comprising two vertical contact plates, a vertical fixing frame, a component fixing port provided in the bottom area of ​​the vertical fixing frame, a pull rope with a weight fixedly mounted on one end, and a pull ring fixedly mounted on the other end of the pull rope, and a threaded distance adjustment mechanism, wherein a No. 1 externally threaded rod and a No. 2 externally threaded rod connected to the ends of the two vertical contact plates are provided inside the mechanism, and the No. 1 externally threaded rod and the No. 2 externally threaded rod are threadedly connected to the No. 1 externally threaded rod and the No. 2 externally threaded rod and can change the distance between the No. 1 externally threaded rod and the No. 2 externally threaded rod when rotated. A transverse threaded sleeve and a polygonal limit rod inserted at the axis of the No. 1 external threaded rod and the No. 2 external threaded rod and capable of preventing the No. 1 external threaded rod and the No. 2 external threaded rod from rotating relative to each other, and a friction torque strength adjustment mechanism, wherein a horizontal hollow column with a hollow structure fixedly installed in the fixing port of the component is provided inside, a rotating wheel installed on the outer circumference of the horizontal hollow column through a bearing and rotating with the movement of the pull rope, a brake disc capable of generating friction force on one rotating end of the rotating wheel, and a coil spring capable of controlling the friction resistance between the brake disc and the rotating wheel.

[0007] Preferably, an elastic rubber pad is embedded in one end surface of the vertical contact plate facing away from the threaded distance adjustment mechanism, and one end surface of the elastic rubber pad protrudes outward relative to the embedded end surface of the vertical contact plate.

[0008] The second end of the second external threaded rod is fixedly provided with a second connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate, and the second connecting plate is fixedly provided with a connecting plate,

[0009] Preferably, the structural shape of the polygonal limiting cavity cross section is consistent with the structural shape of the polygonal limiting rod cross section, both are polygonal structures, and the structural dimensions of the polygonal limiting cavity cross section match the structural dimensions of the polygonal limiting rod cross section.

[0010] Preferably, the No. 1 thread structure includes an internal thread structure arranged inside the No. 1 internal thread cavity and an external thread structure arranged on the No. 1 external thread rod body, and the No. 2 thread structure includes an internal thread structure arranged inside the No. 2 internal thread cavity and an external thread structure arranged on the No. 2 external thread rod body, and the spiral direction of the No. 1 thread structure is opposite to the spiral direction of the No. 2 thread structure.

[0011] Preferably, the friction torque strength adjustment mechanism includes a horizontal hollow column, a horizontal component movable cavity is provided inside the horizontal hollow column, an internal threaded hole is provided at one end of the horizontal hollow column close to the vertical fixed frame, and a rod body through-hole is provided at the other end of the horizontal hollow column, and a rotatable rotating wheel is installed on the outer circumferential surface of the horizontal hollow column close to one end of the rod body through a bearing, and an annular wire groove for placing a pull rope is provided on the outer circumferential surface of the rotating wheel, and a No. 1 limit movable plate and a No. 2 limit movable plate that can move axially along the horizontal component movable cavity are placed inside the horizontal component movable cavity. The movable plate, a coil spring is fixedly installed between the No. 1 limit movable plate and the No. 2 limit movable plate, one end of the No. 1 limit movable plate is installed with a No. 3 externally threaded rod that can rotate through a bearing, the rod body of the No. 3 externally threaded rod is installed in the internally threaded hole through a No. 3 threaded structure, and a rotating cap is fixedly installed at one end of the No. 3 externally threaded rod located on the outside, and a horizontal telescopic rod that passes through the through-hole of the rod body is fixedly installed at one end of the No. 2 limit movable plate, and a brake disc is fixedly installed at one end of the horizontal telescopic rod located on the outside, and one end face of the brake disc is provided with a brake ring with an integral structure therewith and an end portion thereof abuts against one end face of the rotating wheel.

[0012] Preferably, the No. 3 thread structure includes an internal thread structure arranged inside the internal thread hole and an external thread structure arranged on the No. 3 external thread rod body.

[0013] Preferably, the structural shape of the cross section of the movable cavity of the horizontal component is consistent with the structural shape of the cross section of the No. 1 limiting movable plate and the No. 2 limiting movable plate, both of which are polygonal structures, and the structural dimensions of the cross section of the movable cavity of the horizontal component match the structural dimensions of the cross section of the No. 1 limiting movable plate and the No. 2 limiting movable plate.

[0014] Compared with the prior art, the present invention provides an osteoporosis exercise device with the following beneficial effects:

[0015] It can be fixedly installed on the door frame or window frame, so as to effectively utilize the remaining space in the room without occupying the ground volume. In addition, the device can adjust the damping intensity during exercise according to the patient's actual situation, thereby improving the applicability of the equipment to different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention;

[0017] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0018] Figure 3 A three-dimensional diagram of the threaded distance adjustment mechanism of the present invention;

[0019] Figure 4 is a three-dimensional cross-sectional view of the threaded distance adjustment mechanism of the present invention;

[0020] Figure 5 A perspective view of the friction torque strength adjustment mechanism of the present invention;

[0021] Figure 6 It is a three-dimensional cross-sectional view of the friction torque strength adjustment mechanism of the present invention.

[0022] Among them: 1. Vertical contact plate; 2. Elastic rubber pad; 3. Vertical fixing frame; 4. Component fixing port; 5. Pull rope; 6. Heavy object; 7. Pull ring; 8. Threaded distance adjustment mechanism; 81. Horizontal threaded sleeve; 82. No. 1 internal thread cavity; 83. No. 2 internal thread cavity; 84. No. 1 thread structure; 85. No. 2 thread structure; 86. No. 1 external thread rod; 87. No. 2 external thread rod; 88. No. 1 connecting plate; 89. No. 2 connecting plate; 810. Polygonal limit cavity; 811. Polygonal limit rod; 812. Polygonal knob structure; 9. Friction-type torque strength adjustment mechanism; 91. Horizontal hollow column; 92. Horizontal component movable cavity; 93. Internal threaded hole; 94. Rod body through-hole; 95. No. 1 limit movable plate; 96. No. 2 limit movable plate; 97. Coil spring; 98. No. 3 external threaded rod; 99. Rotating cap; 910. Horizontal telescopic rod; 911. Rotating wheel; 912. Annular wire groove; 913. Brake disc; 914. Brake ring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2, an osteoporosis exercise device, comprising two vertical contact plates 1, a vertical fixing frame 3, a component fixing port 4 arranged in the bottom area of ​​the vertical fixing frame 3, a pull rope 5 with a heavy object 6 fixedly installed at one end, and a pull ring 7 fixedly installed at the other end of the pull rope 5. In order to improve the protection ability of the contact parts such as the door frame, it is necessary to embed an elastic rubber pad 2 on the end surface of the vertical contact plate 1 facing away from the threaded distance adjustment mechanism 8, and one end surface of the elastic rubber pad 2 protrudes outward relative to the embedded end surface of the vertical contact plate 1, so that the two vertical contact plates 1 are symmetrically contacted with two symmetrical sides of the door frame or window frame, and the gripping force of the vertical contact plates 1 on the contact surfaces is sufficient to keep the device stable during work. Then, the patient can pull the pull ring 7 to drive the heavy object 6 to move longitudinally, thereby achieving the exercise effect.

[0025] To achieve interference installation on different door frames, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , it is necessary to set up a threaded distance adjustment mechanism 8, which is internally provided with a No. 1 external thread rod 86 and a No. 2 external thread rod 87 connected to the ends of the two vertical contact plates 1, a transverse threaded sleeve 81 that is threadedly connected to the No. 1 external thread rod 86 and the No. 2 external thread rod 87 and can change the distance between the No. 1 external thread rod 86 and the No. 2 external thread rod 87 when rotated, and a polygonal limit rod 811 that is inserted into the axis of the No. 1 external thread rod 86 and the No. 2 external thread rod 87 and can prevent the No. 1 external thread rod 86 and the No. 2 external thread rod 87 from rotating relative to each other. The transverse threaded sleeve 81 is rotated in a directional manner. Due to the No. 1 thread structure 8 4 is opposite to the spiral direction of the No. 2 threaded structure 85, and during the rotation process, the presence of the polygonal limiting rod 811 prevents the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 from rotating relative to each other. Therefore, the distance between the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 will change until the two vertical contact plates 1 are symmetrically contacted on the two symmetrical sides of the door frame or window frame, and the gripping force between the vertical contact plates 1 on the contact surfaces is sufficient to keep the equipment stable during operation, and the rotation of the transverse threaded sleeve 81 can be stopped, thereby realizing the contact installation of different door frames.

[0026] For the specific structure of the threaded distance adjustment mechanism 8, please refer to Figure 3 and Figure 4, including a transverse threaded sleeve 81, a No. 1 externally threaded rod 86 and a No. 2 externally threaded rod 87, one end of the transverse threaded sleeve 81 is provided with a No. 1 internally threaded cavity 82 with an inner concave structure, and the other end of the transverse threaded sleeve 81 is provided with a No. 2 internally threaded cavity 83 with an inner concave structure, the rod body of the No. 1 externally threaded rod 86 is installed in the interior of the No. 1 internally threaded cavity 82 through the No. 1 threaded structure 84, and the rod body of the No. 2 externally threaded rod 87 is installed in the interior of the No. 2 internally threaded cavity 83 through the No. 2 threaded structure 85, the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 are provided with a polygonal limiting cavity 810 with an inner concave structure at the opposite ends, and a polygonal limiting rod 811 inserted into the polygonal limiting cavity 810 is fixedly installed in the center of the transverse threaded sleeve 81, one end of the No. 1 externally threaded rod 86 is provided with a No. 1 connecting plate 88 with its integral structure and fixedly connected to one of the vertical contact plates 1, the No. 2 externally threaded rod 87 One end is provided with a No. 2 connecting plate 89 which is an integral structure with it and fixedly connected to another vertical resistance plate 1, and the outer circumferential surface of the transverse threaded sleeve 81 is provided with a polygonal knob structure 812 which is an integral structure with it and is easy to rotate. The structural shape of the cross section of the polygonal limiting cavity 810 is consistent with the structural shape of the cross section of the polygonal limiting rod 811, and both are polygonal structures, and the structural dimensions of the cross section of the polygonal limiting cavity 810 match the structural dimensions of the cross section of the polygonal limiting rod 811. The No. 1 threaded structure 84 includes an internal threaded structure arranged inside the No. 1 internal threaded cavity 82 and an external threaded structure arranged on the rod body of the No. 1 external threaded rod 86. The No. 2 threaded structure 85 includes an internal threaded structure arranged inside the No. 2 internal threaded cavity 83 and an external threaded structure arranged on the rod body of the No. 2 external threaded rod 87, and the spiral direction of the No. 1 threaded structure 84 is opposite to the spiral direction of the No. 2 threaded structure 85.

[0027] To achieve the ability to adjust the intensity of your workout, see Figure 1 、 Figure 2 、 Figure 5 and Figure 6, it is necessary to set up a friction type torque strength adjustment mechanism 9, which is provided with a horizontal hollow column 91 fixedly installed in the component fixing port 4 and having a hollow structure inside, a rotating wheel 911 installed on the outer circumference of the horizontal hollow column 91 through a bearing and rotating with the movement of the pull rope 5, a brake disc 913 that can form a friction force on one rotating end of the rotating wheel 911, and a coil spring 97 that can control the friction resistance between the brake disc 913 and the rotating wheel 911. When the pull ring 7 is pulled, the pull rope 5 will cause the rotating wheel 911 to rotate, and the rotating wheel 911 will rotate. When the wheel 911 rotates, it needs to overcome the friction resistance F resistance between the brake disc 913 and the rotating wheel 911. Therefore, the pulling force F pull at this time = F resistance + the gravity G of the heavy object 6. When the rotating cap 99 is rotated, due to the connection of the threaded structure, the No. 3 external threaded rod 98 will change the distance between the No. 1 limiting movable plate 95 and the No. 2 limiting movable plate 96. This distance will change the elastic strength of the coil spring 97 after stretching, thereby changing the size of = F resistance, and then changing the size of F pull, thereby realizing the ability to adjust the exercise intensity.

[0028] For the specific structure of the friction torque intensity adjustment mechanism 9, please refer to Figure 5 and Figure 6, including a horizontal hollow column 91, the interior of the horizontal hollow column 91 is provided with a horizontal component movable cavity 92, the horizontal hollow column 91 is provided with an internal threaded hole 93 at one end close to the vertical fixed frame 3, and the other end of the horizontal hollow column 91 is provided with a rod body through-hole 94, and the outer circumferential surface of the horizontal hollow column 91 near one end of the rod body through-hole 94 is provided with a rotatable rotating wheel 911 installed through a bearing, and the outer circumferential surface of the rotating wheel 911 is provided with an annular wire groove 912 for placing the pull rope 5. The horizontal hollow column 91 is provided with a first limiting movable plate 95 and a second limiting movable plate 96 that can move axially along the horizontal component movable cavity 92, and a coil spring 97 is fixedly installed between the first limiting movable plate 95 and the second limiting movable plate 96. One end of the first limiting movable plate 95 is provided with a third externally threaded rod 98 that can rotate through a bearing, and the rod body of the third externally threaded rod 98 is fixed with a coil spring 97 between the first limiting movable plate 95 and the second limiting movable plate 96. The No. 1 threaded structure is installed in the internal threaded hole 93, and the No. 3 external threaded rod 98 is fixedly installed with a rotating cap 99 at one end located on the outside, and the No. 2 limiting movable plate 96 is fixedly installed with a horizontal telescopic rod 910 that passes through the rod body through-hole 94, and the horizontal telescopic rod 910 is fixedly installed with a brake disc 913 at one end located on the outside, and one end face of the brake disc 913 is provided with a brake ring 914 with an integral structure therewith and the end face of the rotating wheel 911 is in contact with the end face. The No. 3 threaded structure includes an internal threaded structure arranged inside the internal threaded hole 93 and an external threaded structure arranged on the rod body of the No. 3 external threaded rod 98. The structural shape of the cross section of the horizontal component movable cavity 92 is consistent with the structural shape of the cross section of the No. 1 limiting movable plate 95 and the No. 2 limiting movable plate 96, both of which are polygonal structures, and the structural dimensions of the cross section of the horizontal component movable cavity 92 match the structural dimensions of the cross section of the No. 1 limiting movable plate 95 and the No. 2 limiting movable plate 96.

[0029] When in use, the transverse threaded sleeve 81 is rotated in a directional manner. Since the spiral direction of the No. 1 threaded structure 84 is opposite to the spiral direction of the No. 2 threaded structure 85, and during the rotation process, the presence of the polygonal limit rod 811 prevents the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 from rotating relative to each other. Therefore, the distance between the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 will change until the two vertical contact plates 1 are symmetrically contacted against the two symmetrical sides of the door frame or window frame, and the gripping force between the vertical contact plates 1 on the contact surfaces is sufficient to keep the equipment stable during operation. The rotation of the transverse threaded sleeve 81 can be stopped. When the pull ring 7 is pulled, the pull rope 5 will cause the rotating wheel 911 to rotate. When the rotating wheel 911 rotates, it needs to overcome the friction resistance Fresistance between the brake disc 913 and the rotating wheel 911. Therefore, the pulling force Fpull at this time = Fresistance + the gravity G of the heavy object 6, and then the heavy object 6 can be driven to move longitudinally, thereby achieving the exercise effect.

[0030] 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. An osteoporosis exercise device, comprising two vertical contact plates (1), a vertical fixing frame (3), a component fixing opening (4) provided at the bottom area of ​​the vertical fixing frame (3), a pull rope (5) having a weight (6) fixedly mounted at one end thereof, and a pull ring (7) fixedly mounted at the other end of the pull rope (5), characterized in that: Also includes, A threaded distance adjustment mechanism (8) is provided inside thereof with a No. 1 externally threaded rod (86) and a No. 2 externally threaded rod (87) connected to the ends of the two vertical contact plates (1), a transverse threaded sleeve (81) threadedly connected to the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of changing the distance between the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) when rotating, and a polygonal limiting rod (811) inserted into the axis of the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of preventing the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) from rotating relative to each other; A friction torque strength adjustment mechanism (9) is provided, wherein a horizontal hollow column (91) is fixedly installed in a component fixing port (4) and has a hollow interior, a rotating wheel (911) is installed on the outer circumference of the horizontal hollow column (91) through a bearing and rotates with the movement of the pull rope (5), a brake disc (913) capable of generating friction force on a rotating end of the rotating wheel (911), and a coil spring (97) capable of controlling the friction resistance between the brake disc (913) and the rotating wheel (911).

2. The osteoporosis training device according to claim 1, characterized in that: An elastic rubber pad (2) is embedded in one end face of the vertical contact plate (1) facing away from the threaded distance adjustment mechanism (8), and one end face of the elastic rubber pad (2) protrudes outward relative to the embedded end face of the vertical contact plate (1).

3. The osteoporosis training device according to claim 2, characterized in that: The threaded distance adjustment mechanism (8) comprises a transverse threaded sleeve (81), a No. 1 external threaded rod (86) and a No. 2 external threaded rod (87), one end of the transverse threaded sleeve (81) is provided with a No. 1 internal threaded cavity (82) with an inner concave structure, and the other end of the transverse threaded sleeve (81) is provided with a No. 2 internal threaded cavity (83) with an inner concave structure, the rod body of the No. 1 external threaded rod (86) is installed inside the No. 1 internal threaded cavity (82) through the No. 1 threaded structure (84), and the rod body of the No. 2 external threaded rod (87) is installed inside the No. 2 internal threaded cavity (83) through the No. 2 threaded structure (85), and the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) are installed inside the No. 2 internal threaded cavity (83). 7) A polygonal limiting cavity (810) with an inner concave structure is provided at the opposite end, a polygonal limiting rod (811) inserted into the polygonal limiting cavity (810) is fixedly installed at the center of the transverse threaded sleeve (81), one end of the No. 1 external threaded rod (86) is provided with a No. 1 connecting plate (88) which is an integral structure with it and fixedly connected to one of the vertical contact plates (1), one end of the No. 2 external threaded rod (87) is provided with a No. 2 connecting plate (89) which is an integral structure with it and fixedly connected to the other vertical contact plate (1), and the outer circumferential surface of the transverse threaded sleeve (81) is provided with a polygonal knob structure (812) which is an integral structure with it and is easy to rotate.

4. The osteoporosis training device according to claim 3, characterized in that: The structural shape of the cross section of the polygonal limiting cavity (810) is consistent with the structural shape of the cross section of the polygonal limiting rod (811), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal limiting cavity (810) match the structural dimensions of the cross section of the polygonal limiting rod (811).

5. The osteoporosis training device according to claim 4, characterized in that: The No. 1 thread structure (84) includes an internal thread structure arranged inside the No. 1 internal thread cavity (82) and an external thread structure arranged on the rod body of the No. 1 external thread rod (86); the No. 2 thread structure (85) includes an internal thread structure arranged inside the No. 2 internal thread cavity (83) and an external thread structure arranged on the rod body of the No. 2 external thread rod (87); and the spiral direction of the No. 1 thread structure (84) is opposite to the spiral direction of the No. 2 thread structure (85).

6. The osteoporosis training device according to claim 1, characterized in that: The friction torque strength adjustment mechanism (9) includes a horizontal hollow column (91), a horizontal component movable cavity (92) is provided inside the horizontal hollow column (91), an internal threaded hole (93) is provided at one end of the horizontal hollow column (91) close to the vertical fixed frame (3), a rod body through hole (94) is provided at the other end of the horizontal hollow column (91), a rotating wheel (911) capable of rotating is installed on the outer circumference of the horizontal hollow column (91) close to the rod body through hole (94) through a bearing, and an annular wire groove (912) for placing the pull rope (5) is provided on the outer circumference of the rotating wheel (911), and a first limiting movable plate (95) and a second limiting movable plate (96) capable of axially moving along the horizontal component movable cavity (92) are placed inside the horizontal component movable cavity (92) of the horizontal hollow column (91). 96), a coil spring (97) is fixedly installed between the No. 1 limiting movable plate (95) and the No. 2 limiting movable plate (96), one end of the No. 1 limiting movable plate (95) is installed with a No. 3 external thread rod (98) that can rotate through a bearing, the rod body of the No. 3 external thread rod (98) is installed in the internal thread hole (93) through a No. 3 thread structure, and the No. 3 external thread rod (98) is fixedly installed with a rotating cap (99) at one end located outside, and a horizontal telescopic rod (910) that passes through the rod body through-hole (94) is fixedly installed at one end of the No. 2 limiting movable plate (96), and a brake disc (913) is fixedly installed at one end of the horizontal telescopic rod (910) located outside, and one end face of the brake disc (913) is provided with a brake ring (914) that is integral with the brake disc and whose end contacts one end face of the rotating wheel (911).

7. The osteoporosis training device according to claim 6, characterized in that: The No. 3 thread structure comprises an internal thread structure arranged inside the internal thread hole (93) and an external thread structure arranged on the rod body of the No. 3 external thread rod (98).

8. The osteoporosis training device according to claim 7, characterized in that: The structural shape of the cross section of the horizontal component movable cavity (92) is consistent with the structural shape of the cross section of the first limiting movable plate (95) and the second limiting movable plate (96), both of which are polygonal structures, and the structural dimensions of the cross section of the horizontal component movable cavity (92) match the structural dimensions of the cross section of the first limiting movable plate (95) and the second limiting movable plate (96).

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