Rehabilitation training device

Abstract

The invention relates to the technical field of medical instruments, and discloses a rehabilitation training device which comprises a damping type rotating mechanism and an air pressure type frictional resistance control mechanism. The transverse hollow column can rotate along with a rotor of the driving motor, the interior of the transverse hollow column is of a hollow structure, the piston plate is placed in the transverse hollow column and can rotate along with the transverse hollow column, and the rotating friction plate abuts against the rotating end of the driven belt wheel and can rotate along with the transverse hollow column. According to the rehabilitation training device, firstly, static friction force between a damping sleeve and a rotating shaft is used for providing basic resistance needed by exercise, then sliding friction force between a rotating friction plate and a driven belt wheel is used for providing corresponding variable resistance, and the total resistance needed by exercise is adjusted by controlling the resistance directions of the basic resistance and the variable resistance; in addition, the change range of the total resistance is wide, and therefore the rehabilitation training device has a wider range of applicability to rehabilitation training intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a rehabilitation training device. Background Art

[0002] During rehabilitation treatment, patients with acute myocardial infarction can develop reasonable exercises to promote their physical recovery, so that they can return to normal life, reduce morbidity and mortality, and improve their quality of life. However, the duration of exercise should not be too long to avoid recurrence of myocardial infarction due to excessive exercise.

[0003] For example, a Chinese patent with publication number "CN115487467A" discloses "a home rehabilitation exercise device for patients with acute myocardial infarction", whose main structure includes a support seat, a seat, a mounting seat and a motion component. A seat is connected to one side of the top of the support seat, and a mounting seat is connected to the other side of the top of the support seat. The mounting seat is provided with a motion component, and also includes a force adjustment mechanism and a time limit mechanism. The motion component is provided with a force adjustment mechanism, which is used to adjust the force required by the patient during exercise. The base is provided with a time limit mechanism for limiting the exercise time. The home rehabilitation exercise device for patients with acute myocardial infarction controls the downward movement of the threaded sleeve and the guide sleeve by twisting the screw to reduce the length of the force arm, and there is friction between the damping sleeve and the shaft sleeve, thereby increasing the force required for pedaling and achieving the effect of increasing the training intensity. After the increase is completed, the friction force will not suddenly decrease or decrease when pedaling, thereby reducing the amplitude of force changes to ensure the effect of training.

[0004] In actual use, the torque intensity of the patient's training is controlled within the range from the minimum friction between the damping sleeve and the shaft sleeve to the maximum friction between the two, and the minimum friction cannot be adjusted to a negative number, which requires the patient to provide pedal force to drive the equipment. For some more serious patients, they are unable to provide pedal force. Therefore, the above-mentioned home rehabilitation exercise device for patients with acute myocardial infarction has a relatively low applicability range for the intensity of patient rehabilitation training. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a rehabilitation training device, which first utilizes the static friction between the damping sleeve and the rotating shaft to provide the basic resistance required for exercise, and then utilizes the sliding friction between the rotating friction plate and the driven pulley to provide the corresponding variable resistance. By controlling the resistance directions of the basic resistance and the variable resistance, the total resistance required for exercise is adjusted. Moreover, the total resistance has a wider range of variation, thereby having a wider range of applicability of rehabilitation training intensity, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rehabilitation training device, comprising a bottom mounting base, two mounting vertical plates fixedly mounted on the upper surface of the bottom mounting base, a No. 1 rotating shaft mounted in the mounting vertical plate through a bearing, a driving pulley fixedly mounted on the opposite ends of the two No. 1 rotating shafts, a pedal rod mounted on the end of the driving pulley, and a driving motor mounted on the top of the bottom mounting base through a No. 1 component mounting seat, and also comprising a damping type rotating mechanism, inside of which is arranged a No. 2 rotating shaft rotatably mounted above the bottom mounting base, a damping sleeve that generates rotational resistance to the shaft body of the No. 2 rotating shaft, and a driven pulley that can rotate with the driving pulley through a belt and drive the No. 2 rotating shaft to rotate; and a pneumatic friction resistance control mechanism, inside of which is arranged a transverse hollow column that can rotate with the rotor of the driving motor and has a hollow structure inside, a piston plate placed in the transverse hollow column and can rotate with the transverse hollow column, and a rotating friction plate that abuts against the rotating end of the driven pulley and can rotate with the transverse hollow column.

[0007] Preferably, the damping rotation mechanism includes a No. 2 component mounting seat, the bottom end of the No. 2 component mounting seat is provided with a bottom fixing plate which is an integral structure therewith and fixedly mounted on the upper surface of the bottom mounting base plate, the No. 1 component mounting seat is provided with a No. 1 component mounting hole inside, and a No. 2 component mounting hole is provided at one end of the No. 1 component mounting hole, and the No. 2 component mounting seat is provided with a rotatable No. 2 rotating shaft inside the No. 1 component mounting hole and the No. 2 component mounting hole, the shaft body of the No. 2 rotating shaft is mounted inside the No. 1 component mounting hole through a bearing, and a damping sleeve which is sleeved on the periphery of the shaft body of the No. 2 rotating shaft is installed inside the No. 2 component mounting hole, and a driven pulley is fixedly mounted on the No. 2 rotating shaft at the end facing the rotor of the driving motor, and the driven pulley and the driving pulley are linked by a belt.

[0008] Preferably, the axis center line of the driven pulley and the axis center line of the rotor of the driving motor are on the same horizontal line.

[0009] Preferably, the damping sleeve forms friction resistance on the second rotating shaft because the damping sleeve is in an extruded state.

[0010] Preferably, the pneumatic friction resistance control mechanism includes a transverse hollow column, one end of the transverse hollow column is provided with an inwardly concave structure and is fixedly mounted on the shaft fixing groove at the end of the rotor, a transverse component active cavity is provided inside the transverse hollow column, a gas limiting cavity is provided at one end of the transverse component active cavity close to the shaft fixing groove, a rod body through-hole is provided at the other end of the transverse component active cavity, a gas compensation channel connecting the external space and the gas limiting cavity is provided on the circumferential surface of the transverse hollow column, a gas valve is installed inside the gas compensation channel of the transverse hollow column, a piston plate capable of axial movement along the gas limiting cavity is arranged inside the gas limiting cavity of the transverse hollow column, a transverse telescopic rod penetrating the rod body through-hole is installed on the end face of the piston plate facing the rod body through-hole, and a rotating friction plate abutting against the rotating end face of the driven pulley is fixedly installed on the end of the transverse telescopic rod.

[0011] Preferably, the structural shape of the rod body perforated cross section is consistent with the structural shape of the transverse telescopic rod cross section, both are polygonal structures, and the structural dimensions of the rod body perforated cross section match the structural dimensions of the transverse telescopic rod cross section.

[0012] Preferably, when the rotating friction plate abuts against the rotating end surface of the driven pulley, the piston plate is located in the middle area of ​​the gas limiting chamber.

[0013] Compared with the prior art, the present invention provides a rehabilitation training device with the following beneficial effects:

[0014] First, the static friction between the damping sleeve and the rotating shaft is used to provide the basic resistance required for exercise, and then the sliding friction between the rotating friction plate and the driven pulley is used to provide the corresponding variable resistance. By controlling the resistance direction of the basic resistance and the variable resistance, the total resistance required for exercise is adjusted. Moreover, the total resistance has a wider range of variation, thereby having a wider range of applicability of rehabilitation training intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0017] Figure 3 is a three-dimensional diagram of the damping type rotating mechanism of the present invention;

[0018] Figure 4 It is a three-dimensional cross-sectional view of the damping type rotating mechanism of the present invention;

[0019] Figure 5 A three-dimensional diagram of the pneumatic friction resistance control mechanism of the present invention;

[0020] Figure 6 It is a three-dimensional cross-sectional view of the pneumatic friction resistance control mechanism of the present invention.

[0021] Wherein: 1. bottom mounting base plate; 2. mounting vertical plate; 3. No. 1 rotating shaft; 4. driving pulley; 5. pedal rod; 6. belt; 7. No. 1 component mounting seat; 8. driving motor; 9. rotor; 10. damping rotating mechanism; 101. No. 2 component mounting seat; 102. bottom fixing plate; 103. No. 1 component mounting hole; 104. No. 2 component mounting hole; 105. No. 2 rotating shaft; 106. damping sleeve; 107. driven pulley; 11. pneumatic friction resistance control mechanism; 111. horizontal hollow column; 112. shaft body fixing groove; 113. rod body through hole; 114. horizontal component active cavity; 115. gas limit cavity; 116. gas compensation channel; 117. gas valve; 118. piston plate; 119. horizontal telescopic rod; 1110. rotating friction plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0023] See also Figure 1 and Figure 2 A rehabilitation training device comprises a bottom mounting base plate 1, two mounting vertical plates 2 fixedly mounted on the upper surface of the bottom mounting base plate 1, a No. 1 rotating shaft 3 mounted in the mounting vertical plate 2 through a bearing, a driving pulley 4 fixedly mounted on the opposite ends of the two No. 1 rotating shafts 3, a pedal rod 5 mounted on the end of the driving pulley 4, and a driving motor 8 mounted above the bottom mounting base plate 1 through a No. 1 component mounting seat 7. The device can be moved to fix the bottom mounting base plate 1 in an area suitable for the patient to exercise, and then the power plug of the driving motor 8 is inserted into a power source.

[0024] To provide the resistance you need for your exercise, see Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up a damping rotation mechanism 10, which is internally provided with a second rotating shaft 105 rotatably mounted above the bottom mounting base plate 1, a damping sleeve 106 that generates rotational resistance to the shaft body of the second rotating shaft 105, and a driven pulley 107 that can rotate with the driving pulley 4 through the belt 6 and drive the second rotating shaft 105 to rotate. The patient's foot steps on the pedal bar 5 to rotate the driving pulley 4, and the driving pulley 4 drives the driven pulley 107 to rotate through the belt 6. The damping sleeve 106 forms a friction resistance F damping on the second rotating shaft 105 due to its own extrusion state. The driven pulley 107 needs to overcome the friction resistance when rotating. Therefore, the friction resistance will form a damping effect on the patient's foot stepping on the pedal bar 5, thereby providing the resistance required for exercise.

[0025] For the specific structure of the damping type rotation mechanism 10, please refer to Figure 3 and Figure 4 , including a No. 2 component mounting seat 101, the bottom end of the No. 2 component mounting seat 101 is provided with a bottom fixing plate 102 which is an integral structure with it and fixedly mounted on the upper surface of the bottom mounting substrate 1, the interior of the No. 2 component mounting seat 101 is provided with a No. 1 component mounting hole 103, one end of the No. 1 component mounting hole 103 is provided with a No. 2 component mounting hole 104, the No. 2 component mounting seat 101 is provided with a rotatable No. 2 rotating shaft 105 inside the No. 1 component mounting hole 103 and the No. 2 component mounting hole 104, The shaft body of the No. 2 rotating shaft 105 is installed inside the No. 1 component mounting hole 103 through a bearing, and the interior of the No. 2 component mounting hole 104 is installed with a damping sleeve 106 which is sleeved on the outer periphery of the shaft body of the No. 2 rotating shaft 105. The No. 2 rotating shaft 105 is fixedly installed with a driven pulley 107 at one end facing the rotor 9 of the drive motor 8, and the axis center line of the driven pulley 107 is on the same horizontal line as the axis center line of the rotor 9 of the drive motor 8, and the driven pulley 107 and the drive pulley 4 are linked by a belt 6.

[0026] To expand the range of resistance intensity for your workout, see Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a pneumatic friction resistance control mechanism 11, which is provided with a transverse hollow column 111 with a hollow structure inside that can rotate with the rotor 9 of the driving motor 8, a piston plate 118 placed inside the transverse hollow column 111 and capable of rotating with the transverse hollow column 111, and a rotating friction plate 1110 that abuts against the rotating end of the driven pulley 107 and can rotate with the transverse hollow column 111. According to the patient's own condition, first use an inflating device to fill a certain amount of air pressure into the interior of the air valve 117. Under the action of the gas, the rotating friction plate 1110 will act on the rotating end surface of the driven pulley 107 with a certain pressure F, thereby controlling the rotating friction plate 1110. The changing resistance Fchange between the pedal and the driven pulley 107 starts the driving motor 8 and controls the rotation direction of the rotor 9. When the direction of Fchange is consistent with the direction in which the patient steps on the pedal rod 5, the total resistance Ftotal generated by the exercise is Fdamping-Fchange. When Fchange is greater than Fdamping, Ftotal is a negative value. At this time, it indicates that the pedal rod 5 will drive the patient's feet to move under the action of the driving motor 8. When the direction of Fchange is opposite to the direction in which the patient steps on the pedal rod 5, Ftotal is Fdamping+Fchange. At this time, the patient's exercise intensity will be increased. The size of Fchange can be changed by controlling the gas pressure and then changing the value of Fpressure. The above principle can be used to control the corresponding exercise intensity.

[0027] For the specific structure of the pneumatic friction resistance control mechanism 11, please refer to Figure 5 and Figure 6, including a transverse hollow column 111, one end of which is provided with an inwardly concave structure and fixedly mounted on a shaft fixing groove 112 at the end of the rotor 9, a transverse component active cavity 114 is provided inside the transverse hollow column 111, a gas limit cavity 115 is provided at one end of the transverse component active cavity 114 close to the shaft fixing groove 112, a rod body through hole 113 is provided at the other end of the transverse component active cavity 114, a gas compensation channel 116 connecting the external space and the gas limit cavity 115 is provided on the circumferential surface of the transverse hollow column 111, a gas valve 117 is installed inside the gas compensation channel 116 of the transverse hollow column 111, and a piston capable of axial movement along the gas limit cavity 115 is placed inside the gas limit cavity 115 of the transverse hollow column 111 Plate 118, the piston plate 118 is installed with a transverse telescopic rod 119 that passes through the rod body through hole 113 on the end face facing the rod body through hole 113. In order to have the transmission function of the rotation effect, it is necessary to make the structural shape of the cross section of the rod body through hole 113 consistent with the structural shape of the cross section of the transverse telescopic rod 119, both of which are polygonal structures, and the structural dimensions of the cross section of the rod body through hole 113 match the structural dimensions of the cross section of the transverse telescopic rod 119. The end of the transverse telescopic rod 119 is fixedly installed with a rotating friction plate 1110 that abuts against the rotating end face of the driven pulley 107. In order to have sufficient movement clearance, it is necessary to make the piston plate 118 located in the middle area of ​​the gas limit cavity 115 when the rotating friction plate 1110 abuts against the rotating end face of the driven pulley 107.

[0028] When in use, the bottom mounting base plate 1 is fixed in an area suitable for the patient to exercise, and then the power plug of the driving motor 8 is inserted into the power supply. The patient steps on the pedal rod 5 to rotate the driving pulley 4, and the driving pulley 4 drives the driven pulley 107 to rotate through the belt 6. First, a certain amount of air pressure is filled into the air valve 117 using an inflating device. Under the action of the gas, the rotating friction plate 1110 will act on the rotating end face of the driven pulley 107 with a certain pressure F, thereby controlling the change of the resistance F between the rotating friction plate 1110 and the driven pulley 107, and starting the driving motor 8. , and controls the rotation direction of the rotor 9. When the direction of Fchange is consistent with the direction in which the patient steps on the foot pedal 5, at this time, the total resistance generated by the exercise is Ftotal=Fdamping-Fchange, and when Fchange is greater than Fdamping, Ftotal is a negative value. At this time, it indicates that the foot pedal 5 will drive the patient's feet to move under the action of the drive motor 8. When the direction of Fchange is opposite to the direction in which the patient steps on the foot pedal 5, Ftotal=Fdamping+Fchange. At this time, the patient's exercise intensity will be increased, and the size of Fchange can be changed by controlling the gas pressure and then changing the value of Fpressure. The above principle can be used to control the corresponding exercise intensity.

[0029] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rehabilitation training device, comprising a bottom mounting base (1), two mounting uprights (2) fixedly mounted on the upper surface of the bottom mounting base (1), a first rotating shaft (3) mounted in the mounting uprights (2) through a bearing, a driving pulley (4) fixedly mounted on the opposite ends of the two first rotating shafts (3), a pedal rod (5) mounted on the end of the driving pulley (4), and a driving motor (8) mounted on the top of the bottom mounting base (1) through a first component mounting seat (7), characterized in that: Also includes, A damping type rotating mechanism (10) is provided inside thereof with a second rotating shaft (105) rotatably mounted above a bottom mounting base plate (1), a damping sleeve (106) generating a rotational resistance to the shaft body of the second rotating shaft (105), and a driven pulley (107) capable of rotating with a driving pulley (4) through a belt (6) and driving the second rotating shaft (105) to rotate; A pneumatic friction resistance control mechanism (11) is provided inside which is provided a transverse hollow column (111) which is capable of rotating with a rotor (9) of a driving motor (8) and has a hollow structure inside, a piston plate (118) which is placed inside the transverse hollow column (111) and is capable of rotating with the transverse hollow column (111), and a rotating friction plate (1110) which abuts against a rotating end of a driven pulley (107) and is capable of rotating with the transverse hollow column (111).

2. A rehabilitation training device according to claim 1, characterized in that: The damping type rotation mechanism (10) comprises a second component mounting seat (101), the bottom end of the second component mounting seat (101) is provided with a bottom fixing plate (102) which is integrally structured with the second component mounting seat (101) and fixedly mounted on the upper surface of the bottom mounting substrate (1), the interior of the second component mounting seat (101) is provided with a first component mounting hole (103), one end of the first component mounting hole (103) is provided with a second component mounting hole (104), and the second component mounting seat (101) is provided with a first component mounting hole (103) and a second component mounting hole (104) at a position between the first component mounting hole (103) and the second component mounting hole (104). A second rotating shaft (105) capable of rotating is placed inside the component mounting hole (104), the shaft of the second rotating shaft (105) is installed inside the component mounting hole (103) through a bearing, a damping sleeve (106) is installed inside the component mounting hole (104) and is sleeved on the outer periphery of the shaft of the second rotating shaft (105), and a driven pulley (107) is fixedly installed on one end of the second rotating shaft (105) facing the rotor (9) of the driving motor (8), and the driven pulley (107) and the driving pulley (4) are linked by a belt (6).

3. A rehabilitation training device according to claim 2, characterized in that: The axis center line of the driven pulley (107) and the axis center line of the rotor (9) of the driving motor (8) are on the same horizontal line.

4. A rehabilitation training device according to claim 3, characterized in that: The damping sleeve (106) forms friction resistance on the second rotating shaft (105) because it is in an extruded state.

5. A rehabilitation training device according to claim 4, characterized in that: The pneumatic friction resistance control mechanism (11) comprises a transverse hollow column (111), one end of which is provided with an inwardly concave structure and fixedly mounted on a shaft fixing groove (112) at the end of a rotor (9), a transverse component movable cavity (114) is provided inside the transverse hollow column (111), a gas limiting cavity (115) is provided at one end of the transverse component movable cavity (114) close to the shaft fixing groove (112), a rod body through hole (113) is provided at the other end of the transverse component movable cavity (114), and a gas limiting cavity (115) is provided on the circumferential surface of the transverse hollow column (111) for connecting the external space and the gas limiting cavity (115). ) of the gas compensation channel (116), the transverse hollow column (111) is provided with a gas valve (117) inside the gas compensation channel (116), the transverse hollow column (111) is provided with a piston plate (118) which is capable of axially moving along the gas limiting chamber (115) inside the gas limiting chamber (115), the piston plate (118) is provided with a transverse telescopic rod (119) which passes through the rod body through hole (113) on the end surface facing the rod body through hole (113), and the end of the transverse telescopic rod (119) is fixedly provided with a rotating friction plate (1110) which abuts against the rotating end surface of the driven pulley (107).

6. A rehabilitation training device according to claim 5, characterized in that: The structural shape of the cross section of the rod body through hole (113) is consistent with the structural shape of the cross section of the transverse telescopic rod (119), both of which are polygonal structures, and the structural dimensions of the cross section of the rod body through hole (113) match the structural dimensions of the cross section of the transverse telescopic rod (119).

7. A rehabilitation training device according to claim 6, characterized in that: When the rotating friction plate (1110) contacts the rotating end surface of the driven pulley (107), the piston plate (118) is located in the middle area of ​​the gas limiting chamber (115).

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