Treatment device for tremor patient

Abstract

The treatment device comprises a base and a top plate, two hand exercise assemblies are arranged on the top plate, two first sliding grooves extending from the front side of the base to the rear side of the base are formed in the top face of the base, and foot fixing plates are arranged in the two first sliding grooves in a sliding mode; a pull rope is arranged between the foot fixing plate and the movable plate, and the two ends of the pull rope are connected with the rear side of the movable plate and the foot fixing plate respectively; and the driving assembly is installed on the base and used for pushing the foot fixing plate to reciprocate along the first sliding groove. According to the technical scheme, the foot fixing plate is pushed by the driving assembly to move back and forth along the first sliding groove so that the feet of a patient can be exercised in a reciprocating mode, in the reciprocating movement process of the foot fixing plate, pulling force is generated on the pulling rope, and the pulling rope transmits the generated pulling force to the movable plate; the movable plate reciprocates through the elastic supporting component after being subjected to tension transmitted by the pull rope, and the hands of the patient are driven to do reciprocating exercise.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a therapeutic device for tremor patients. Background Art

[0002] Neurology is an independent secondary discipline and does not belong to the concept of internal medicine. The nervous system is composed of the brain, spinal cord and peripheral nerves. Neurology is the clinical medicine that studies nervous system diseases and skeletal muscle diseases, and is mainly studied through internal medicine methods. A common disease in neurology is Parkinson's disease, which is more common in the elderly, with an average age of onset of around 60 years old. Parkinson's disease in young people under 40 years old is rare. The most important pathological change of Parkinson's disease is the degeneration and death of dopaminergic neurons in the substantia nigra of the midbrain, which causes a significant decrease in the DA content in the striatum and causes the disease.

[0003] The hands and feet of Parkinson's patients become stiff due to muscle atrophy, and it is difficult for the patients to move them by their own strength. Therefore, during the treatment process, family members and medical staff are required to frequently provide auxiliary exercises for the patients, which results in very high labor intensity for medical staff and family members.

[0004] For example, CN213311418U discloses a tremor treatment device for patients in neurology, including a table top and a stool, wherein a groove is formed through one side of the surface of the table top, the stool is located below the groove, a protective strip is hinged on the side of the table top close to the groove, a multimedia player bracket is provided at the middle position of the top of the table top away from the groove, a group of first openings and a second opening are respectively formed on the top of the table top, and the second opening is located on the inner side of the first opening, a group of the first openings are provided with support rods inside, a group of support rods are provided with grip rods on the opposite surfaces, and the grip rods are sleeved with rings. The utility model has the function of assisting patients in exercising by providing a support rod device, improves the treatment effect of Parkinson's patients and reduces the workload of family members and medical staff, and at the same time, the adjustable device can be used by patients of different heights.

[0005] However, in the above technical solution, the electric push rod is turned on by the controller, and the lifting and lowering of the electric push rod is controlled so that the support rod can drive the patient's arm to reciprocate. However, when Parkinson's patients experience static tremors, they not only manifest in the hands but also in the legs. Therefore, Parkinson's patients need to perform not only hand exercises but also leg exercises. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a therapeutic device for tremor patients, so as to solve the problem in the prior art that Parkinson's patients experience static tremors not only in the hands but also in the legs, and therefore Parkinson's patients need to perform not only hand exercises but also leg exercises.

[0007] The utility model is realized by the following technical solutions:

[0008] A therapeutic device for tremor patients, comprising a base and a top plate arranged above the base, wherein two hand exercise assemblies for exercising the upper limbs of tremor patients are arranged on the top plate, and the hand exercise assemblies include a movable plate, the front side of the movable plate is hinged to the top plate, and an elastic support member is arranged between the lower rear side of the movable plate and the top plate;

[0009] The top surface of the base is provided with two first slide grooves extending from the front side to the rear side of the base, and foot fixing plates for fixing the feet of tremor patients are slidably arranged in the two first slide grooves;

[0010] A pull rope is provided between the foot fixing plate and the movable plate, and the two ends of the pull rope are respectively connected to the rear side of the movable plate and the foot fixing plate;

[0011] It also includes a driving component, which is installed on the base and is used to push the foot fixing plate to move back and forth along the first sliding groove.

[0012] Furthermore, the driving assembly includes a reciprocating screw and a motor. The reciprocating screw is located in the first slide groove and extends along the length direction of the first slide groove. The foot fixing plate is cooperatively connected to the reciprocating screw. The motor is located on one side of the base. The output shaft of the motor is connected to a rotating rod, and the rotating rod is connected to the reciprocating screw through a transmission assembly.

[0013] Furthermore, a mounting cavity extending from the left side to the right side of the base is provided in the base, one end of the rotating rod away from the motor is located in the mounting cavity, one end of the reciprocating screw is connected to one side of the first slide groove, and the other end extends into the mounting cavity;

[0014] The transmission assembly includes a first pulley, a second pulley and a transmission belt. The first pulley is connected to an end of the rotating rod away from the motor. The second pulley is installed on a reciprocating screw located in the installation cavity. The first pulley and the second pulley are connected by a transmission belt.

[0015] Furthermore, two movable cavities extending from the left side to the right side of the top plate are opened on the top surface of the top plate, and movable rods are connected in the movable cavities. The movable rods extend along the length direction of the movable cavities, and the two ends are respectively fixedly connected to the side walls of the movable cavities, and the front side of the movable plate is movably connected to the movable rods.

[0016] Furthermore, a wrist fixing seat and a finger fixing assembly are arranged on the top surface of the movable plate. The finger fixing assembly comprises a finger fixing seat which is slidably matched with the top surface of the movable plate. A second Velcro group is arranged on the finger fixing seat.

[0017] Furthermore, a plurality of second slide grooves extending along the length of the movable plate are provided on the top surface of the movable plate, and limiting grooves are provided on the two opposite side walls of the second slide grooves. A sliding block slidably connected to the second slide grooves is connected to the bottom surface of the finger fixing seat, and limiting blocks slidably connected to the limiting grooves are provided on the opposite sides of the sliding block.

[0018] Furthermore, the elastic support member includes a connecting tube and an inner rod slidably connected in the connecting tube, the top end of the inner rod is connected to the bottom surface of the movable plate, the bottom end of the inner rod is connected to a movable block slidably matched with the inner wall of the connecting tube, a return spring is connected in the connecting tube, and the two ends of the return spring are respectively connected to the bottom surface of the inner wall of the connecting tube and the bottom surface of the movable block;

[0019] One end of the pull rope is connected to the bottom surface of the movable block, and the other end passes through the closed end of the connecting tube and is connected to the foot fixing plate.

[0020] Furthermore, two fixed blocks are arranged on the top surface of the base, a fixed rod is connected between the two fixed blocks, the fixed rod is arranged parallel to the base, two limiting rings corresponding to the foot fixing plates are fixedly connected to the fixed rod, and the pull rope is slidably fitted on the limiting ring.

[0021] The beneficial effects of the utility model are:

[0022] The therapeutic device for tremor patients can perform reciprocating exercise on the patient's feet by driving the foot fixing plate to move back and forth along the first slide groove through the driving component, and in the process of reciprocating movement of the foot fixing plate, a pulling force is generated on the pull rope, and the pull rope transmits the generated pulling force to the movable plate. After receiving the pulling force transmitted by the pull rope, the movable plate reciprocates through the elastic supporting component, thereby driving the patient's hands to perform reciprocating exercise.

[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of the utility model (first viewing angle);

[0025] Figure 2 It is a three-dimensional diagram of the utility model (second viewing angle);

[0026] Figure 3 For the utility model Figure 2 A partial enlarged view of middle A;

[0027] Figure 4 It is a cross-sectional view of the base of the utility model;

[0028] Figure 5 For the utility model Figure 4 A partial enlarged view of B in the middle;

[0029] Figure 6 It is a cross-sectional view of the top plate of the utility model;

[0030] Figure 7 It is a cross-sectional view of the finger fixing assembly of the utility model;

[0031] Figure 8 It is a cross-sectional view of the elastic supporting member of the utility model.

[0032] In the figure: 1, base; 2, motor; 3, installation cavity; 4, rotating rod; 5, first pulley; 6, first slide groove; 7, reciprocating screw; 8, second pulley; 9, transmission belt; 10, foot fixing plate; 11, first Velcro group; 12, connecting ring; 13, fixing block; 14, fixing rod; 15, limiting ring; 16, connecting rod; 17, top plate; 18, elbow support frame;

[0033] 19. Hand exercise assembly; 1901. movable plate; 1902. wrist fixing seat; 1903. movable cavity; 1904. movable rod;

[0034] 20. Finger fixing assembly; 2001. Second slide groove; 2002. Limiting groove; 2003. Sliding block; 2004. Limiting block; 2005. Finger fixing seat; 2006. Second Velcro group;

[0035] 21. Elastic supporting member; 2101. Connecting tube; 2102. Inner rod; 2103. Movable block; 2104. Return spring; 2105. Pull rope. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0041] See also Figure 1-8 The utility model provides a technical solution: a therapeutic device for tremor patients, comprising a base 1 and a top plate 17 arranged above the base 1, two hand exercise components 19 for exercising the upper limbs of tremor patients are arranged on the top plate 17, the hand exercise components 19 include a movable plate 1901, the front side of the movable plate 1901 is hinged to the top plate 17, and an elastic support member 21 is arranged between the lower rear side of the movable plate 1901 and the top plate 17;

[0042] The top surface of the base 1 is provided with two first slide grooves 6 extending from the front side to the rear side of the base 1, and the two first slide grooves 6 are both slidably provided with foot fixing plates 10 for fixing the feet of the tremor patient;

[0043] A pull rope 2105 is provided between the foot fixing plate 10 and the movable plate 1901, and two ends of the pull rope 2105 are respectively connected to the rear side of the movable plate 1901 and the foot fixing plate 10;

[0044] It also includes a driving component, which is installed on the base 1 and is used to push the foot fixing plate 10 to move back and forth along the first sliding groove 6.

[0045] In this solution, a connecting rod 16 is arranged between the bottom surface of the top plate 17 and the top surface of the base 1, and the two ends of the connecting rod 16 are respectively connected to the bottom surface of the top plate 17 and the top surface of the base 1; when the driving component pushes the foot fixing plate 10 to move back and forth along the first slide groove 6, the hand exercise component 19 can be driven to reciprocate through the pull rope 2105.

[0046] When in use, first place a chair on the base 1, and the tremor patient sits on the chair, and fixes the tremor patient's hands to the two hand exercise components 19 respectively, and then puts the tremor patient's feet on the foot fixing plate 10, and fixes them with the first Velcro group 11, and then starts the driving component. The driving component pushes the foot fixing plate 10 to move back and forth along the first slide groove 6 to perform reciprocating exercise on the patient's feet. During the reciprocating movement of the foot fixing plate 10 along the first slide groove 6, a pulling force is generated on the pull rope 2105, and the pull rope 2105 transmits the generated pulling force to the movable plate 1901. After the movable plate 1901 is subjected to the pulling force transmitted by the pull rope 2105, it drives the patient's hands to perform reciprocating exercise through the elastic supporting member 21.

[0047] By pushing the foot fixing plate 10 to move back and forth along the first slide groove 6 through the driving component, the patient's feet can be exercised reciprocatingly. In the process of reciprocating movement of the foot fixing plate 10, a pulling force is generated on the pull rope 2105, and the pull rope 2105 transmits the generated pulling force to the movable plate 1901. After the movable plate 1901 is subjected to the pulling force transmitted by the pull rope 2105, it reciprocates through the elastic supporting component 21, thereby driving the patient's hands to perform reciprocating exercise.

[0048] In this embodiment: the driving assembly includes a reciprocating screw 7 and a motor 2, the reciprocating screw 7 is located in the first slide groove 6, and extends along the length direction of the first slide groove 6, the foot fixing plate 10 is cooperatively connected to the reciprocating screw 7, the motor 2 is located on one side of the base 1, and the output shaft of the motor 2 is connected to the rotating rod 4, and the rotating rod 4 is connected to the reciprocating screw 7 through a transmission assembly.

[0049] When in use, the motor 2 is started, the motor 2 drives the rotating rod 4 to rotate, the rotating rod 4 rotates through the transmission assembly to rotate the reciprocating screw 7, and the reciprocating screw 7 rotates to push the foot fixing plate 10 to reciprocate along the first sliding groove 6 to exercise the feet of the tremor patient.

[0050] Among them, the model of motor 13 is 1LE0001-1CB0.

[0051] In this embodiment: a mounting cavity 3 extending from the left side to the right side of the base 1 is provided in the base 1, an end of the rotating rod 4 away from the motor 2 is located in the mounting cavity 3, one end of the reciprocating screw 7 is connected to one side of the first slide groove 6, and the other end extends into the mounting cavity 3;

[0052] The transmission assembly includes a first pulley 5, a second pulley 8 and a transmission belt 9. The first pulley 5 is connected to the end of the rotating rod 4 away from the motor 2. The second pulley 8 is installed on the reciprocating screw 7 located in the installation cavity 3. The first pulley 5 and the second pulley 8 are connected by a transmission belt 9.

[0053] In this solution, two first pulleys 5 are provided, and the two first pulleys 5 are arranged along the length direction of the rotating rod 4, and the second pulleys 8 on the two reciprocating screws 7 are respectively connected to one of the first pulleys 5 through a transmission belt 9.

[0054] When the motor 2 drives the rotating rod 4 to rotate, the two first pulleys 5 rotate together. The rotation of the first pulley 5 drives the second pulley 8 to rotate through the transmission belt 9. The rotation of the second pulley 8 causes the reciprocating screw 7 to rotate to push the foot fixing plate 10 to reciprocate along the first slide groove 6.

[0055] In this embodiment: two movable cavities 1903 extending from the left side to the right side of the top plate 17 are opened on the top surface of the top plate 17, and a movable rod 1904 is connected in the movable cavity 1903. The movable rod 1904 extends along the length direction of the movable cavity 1903, and the two ends are respectively fixedly connected to the side walls of the movable cavity 1903, and the front side of the movable plate 1901 is movably connected to the movable rod 1904.

[0056] When the pull rope 2105 is pulled and drives the movable plate 1901 to move back and forth, the movable plate 1901 moves back and forth with the movable rod 1904 as the axis.

[0057] In this embodiment: a wrist fixing seat 1902 and a finger fixing assembly 20 are arranged on the top surface of the movable plate 1901 , and the finger fixing assembly 20 includes a finger fixing seat 2005 slidably fitted on the top surface of the movable plate 1901 , and a second Velcro group 2006 is arranged on the finger fixing seat 2005 .

[0058] During use, the wrist and fingers of the tremor patient are fixed respectively by the wrist fixing seat 1902 and the finger fixing assembly 20, so that the tremor patient can be more stable during the activity exercise.

[0059] In this embodiment: a plurality of second slide grooves 2001 extending along the length of the movable plate 1901 are provided on the top surface of the movable plate 1901, limiting grooves 2002 are provided on the opposite side walls of the second slide grooves 2001, a slider slidably connected to the second slide grooves 2001 is connected to the bottom surface of the finger fixing seat 2005, and limiting blocks 2004 slidably connected to the limiting grooves 2002 are provided on the opposite sides of the slider.

[0060] When in use, first place the wrist of the tremor patient on the wrist fixing seat 1902 for fixing, and then place the fingers of the tremor patient on the corresponding second slide grooves 2001 respectively. According to the length of the patient's fingers, the position of the finger fixing seat 2005 on the second slide groove 2001 can be moved, which is suitable for fixing fingers of different lengths.

[0061] In this embodiment: the elastic support member 21 includes a connecting tube 2101 and an inner rod 2102 slidably connected in the connecting tube 2101, the top of the inner rod 2102 is connected to the bottom surface of the movable plate 1901, the bottom of the inner rod 2102 is connected to a movable block 2103 slidably matched with the inner wall of the connecting tube 2101, and a return spring 2104 is connected in the connecting tube 2101, and the two ends of the return spring 2104 are respectively connected to the bottom surface of the inner wall of the connecting tube 2101 and the bottom surface of the movable block 2103;

[0062] One end of the pull rope 2105 is connected to the bottom surface of the movable block 2103 , and the other end passes through the closed end of the connecting tube 2101 and is connected to the foot fixing plate 10 .

[0063] In this embodiment, a connecting ring 12 is provided on the rear side of the foot fixing plate 10, and one end of the pull rope 2105 is bound and connected to the connecting ring 12; when the return spring 2104 is in a freely extended state, the upper end of the inner rod 2102 extends out of the open end of the connecting tube 2101.

[0064] When the foot fixing plate slides along the rear side of the first slide groove 6 to the front side, the tension applied to the pull rope 2105 gradually increases, pulling the movable block 2103 and the inner rod 2102 to slide from the open end of the connecting tube 2101 to the closed end. At the same time, the return spring 2104 contracts, and the inner rod 2102 slides to make the movable plate 1901 move downward with the movable rod 1904 as the axis. When the foot fixing plate slides along the front side of the first slide groove 6 to the rear side, the tension applied to the pull rope 2105 gradually decreases, causing the contracted return spring 2104 to restore to a free extension state. In the process of the return spring 2104 restoring the free extension state, the movable block 2103 and the inner rod 2102 slide from the closed end of the connecting tube 2101 to the open end. The inner rod 2102 slides out of the connecting tube 2101 and pushes the movable plate 1901 to move upward with the movable rod 1904 as the axis.

[0065] In this embodiment: two fixed blocks 13 are also set on the top surface of the base 1, and a fixed rod 14 is connected between the two fixed blocks 13. The fixed rod 14 is set parallel to the base 1, and two limiting rings 15 corresponding to the foot fixing plate 10 are fixedly connected to the fixed rod 14, and the pull rope 2105 is slidably fitted on the limiting ring 15.

[0066] When the pull rope 2105 is subjected to tension and reciprocates, it slides on the limit ring 15 , which can guide the pull rope 2105 during the reciprocating movement and reduce the wear on the pull rope 2105 .

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A therapeutic device for tremor patients, comprising a base (1) and a top plate (17) arranged above the base (1), wherein the top plate (17) is provided with two hand exercise components (19) for exercising the upper limbs of the tremor patients, characterized in that: The hand exercise assembly (19) comprises a movable plate (1901), the front side of the movable plate (1901) is hinged to the top plate (17), and an elastic support member (21) is arranged between the lower rear side of the movable plate (1901) and the top plate (17); The top surface of the base (1) is provided with two first slide grooves (6) extending from the front side to the rear side of the base (1), and foot fixing plates (10) for fixing the feet of tremor patients are slidably arranged in the two first slide grooves (6); A pull rope (2105) is provided between the foot fixing plate (10) and the movable plate (1901), and two ends of the pull rope (2105) are respectively connected to the rear side of the movable plate (1901) and the foot fixing plate (10); It also includes a driving assembly, which is mounted on the base (1) and is used to push the foot fixing plate (10) to move back and forth along the first sliding groove (6).

2. The therapeutic device for tremor patients according to claim 1, characterized in that: The driving assembly comprises a reciprocating screw (7) and a motor (2); the reciprocating screw (7) is located in a first slide groove (6) and extends along the length direction of the first slide groove (6); the foot fixing plate (10) is connected to the reciprocating screw (7); the motor (2) is located on one side of the base (1); the output shaft of the motor (2) is connected to a rotating rod (4); and the rotating rod (4) is connected to the reciprocating screw (7) through a transmission assembly.

3. The therapeutic device for tremor patients according to claim 2, characterized in that: The base (1) is provided with a mounting cavity (3) extending from the left side of the base (1) to the right side, the end of the rotating rod (4) away from the motor (2) is located in the mounting cavity (3), one end of the reciprocating screw (7) is connected to one side of the first slide groove (6), and the other end extends into the mounting cavity (3); The transmission assembly comprises a first pulley (5), a second pulley (8) and a transmission belt (9); the first pulley (5) is connected to an end of a rotating rod (4) away from the motor (2); the second pulley (8) is mounted on a reciprocating screw (7) located in a mounting cavity (3); the first pulley (5) and the second pulley (8) are connected via a transmission belt (9).

4. The therapeutic device for tremor patients according to claim 3, characterized in that: The top surface of the top plate (17) is provided with two movable cavities (1903) extending from the left side to the right side of the top plate (17); a movable rod (1904) is connected inside the movable cavity (1903); the movable rod (1904) extends along the length direction of the movable cavity (1903), and the two ends of the movable rod (1904) are respectively fixedly connected to the side walls of the movable cavity (1903); the front side of the movable plate (1901) is movably connected to the movable rod (1904).

5. The therapeutic device for tremor patients according to claim 4, characterized in that: A wrist fixing seat (1902) and a finger fixing assembly (20) are arranged on the top surface of the movable plate (1901); the finger fixing assembly (20) comprises a finger fixing seat (2005) slidably fitted on the top surface of the movable plate (1901); and a second Velcro group (2006) is arranged on the finger fixing seat (2005).

6. The therapeutic device for tremor patients according to claim 5, characterized in that: The top surface of the movable plate (1901) is provided with a plurality of second slide grooves (2001) extending along the length of the movable plate (1901), and the second slide grooves (2001) are provided with limiting grooves (2002) on opposite side walls thereof, and the bottom surface of the finger fixing seat (2005) is connected with a slider (2003) slidably connected to the second slide groove (2001), and the slider (2003) is provided with limiting blocks (2004) slidably connected to the limiting grooves (2002) on opposite sides thereof.

7. The therapeutic device for tremor patients according to claim 6, characterized in that: The elastic support member (21) comprises a connecting tube (2101) and an inner rod (2102) slidably connected in the connecting tube (2101); the top end of the inner rod (2102) is connected to the bottom surface of the movable plate (1901); the bottom end of the inner rod (2102) is connected to a movable block (2103) slidably matched with the inner wall of the connecting tube (2101); a return spring (2104) is connected in the connecting tube (2101); two ends of the return spring (2104) are respectively connected to the bottom surface of the inner wall of the connecting tube (2101) and the bottom surface of the movable block (2103); One end of the pull rope (2105) is connected to the bottom surface of the movable block (2103), and the other end passes through the closed end of the connecting tube (2101) and is connected to the foot fixing plate (10).

8. The therapeutic device for tremor patients according to claim 7, characterized in that: Two fixing blocks (13) are also arranged on the top surface of the base (1), a fixing rod (14) is connected between the two fixing blocks (13), the fixing rod (14) is arranged parallel to the base (1), two limiting rings (15) corresponding to the foot fixing plates (10) are fixedly connected to the fixing rod (14), and the pull rope (2105) is slidably fitted on the limiting ring (15).

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