Limb rehabilitation exercise device for old people

Abstract

The invention belongs to the technical field of limb rehabilitation exercise equipment, and particularly relates to a limb rehabilitation exercise device for old people. The leg driving device comprises a leg driving device body, the leg driving device body comprises a mounting shell, pedals are mounted on the two sides of the mounting shell, and the mounting shell comprises a left mounting shell and a right mounting shell; driving mechanisms for driving the pedals to rotate are arranged in the mounting shells, and transmission mechanisms for transmitting power of the driving mechanisms to the pedals are mounted in the mounting shells above the driving mechanisms; the bottom of the driving mechanism is connected with a lifting mechanism for driving the driving mechanism to lift, the bottom of the mounting shell is provided with a bottom plate, a guide mechanism for swinging the left mounting shell and the right mounting shell left and right around the same center point is arranged between the bottom plate and the mounting shell, the lifting mechanism drives the driving mechanism to descend, and the power output end of the driving mechanism is connected with the guide mechanism; the lifting mechanism drives the driving mechanism to ascend, and the power output end of the driving mechanism is connected with the transmission mechanism. Active or passive bending and stretching exercise of the lower limbs and active or passive opening and closing exercise of the lower limbs are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of limb rehabilitation training equipment, and in particular relates to a limb rehabilitation training device for the elderly. Background Art

[0002] With the aging of the global population, the proportion of the elderly in the total population continues to rise. Due to the natural degeneration of their physical functions, the elderly are often more susceptible to chronic diseases such as cardiovascular and cerebrovascular diseases, neurological diseases, and bone and joint diseases. These diseases not only pose a threat to the health of the elderly, but also often cause limb dysfunction, seriously restricting their daily living ability and reducing their quality of life. In this context, rehabilitation training has become an important means to help the elderly restore their limb functions and improve their quality of life. However, existing rehabilitation training devices have some obvious limitations. On the one hand, many devices have relatively single functions and cannot meet the diverse rehabilitation needs of the elderly; on the other hand, these devices are often designed for patients, with large size and complex structure, resulting in the equipment being idle after the rehabilitation training is completed, unable to continue to play its value, resulting in a waste of resources. Summary of the invention

[0003] The purpose of the present invention is to provide a limb rehabilitation exercise device for the elderly, which can realize active or passive flexion and extension exercise of the lower limbs, as well as active or passive opening and closing exercise of the lower limbs.

[0004] The elderly limb rehabilitation exercise device comprises a leg kicker body, the leg kicker body comprises a mounting shell, two sides of the mounting shell are mounted with pedals for placing left and right feet respectively, the mounting shell comprises a left mounting shell for mounting the left pedal and a right mounting shell for mounting the right pedal; A driving mechanism for driving the pedals to rotate is arranged in each mounting shell, and a transmission mechanism for transmitting the power of the driving mechanism to the pedals is arranged in the mounting shell above the driving mechanism; The bottom of the driving mechanism is connected to a lifting mechanism that drives it to rise and fall. A bottom plate is provided at the bottom of the mounting shell. A guide mechanism is provided between the bottom plate and the mounting shell so that the left mounting shell and the right mounting shell can swing left and right around the same center point. The lifting mechanism drives the driving mechanism to descend, and the power output end of the driving mechanism is connected to the power input end of the guide mechanism; the lifting mechanism drives the driving mechanism to rise, and the power output end of the driving mechanism is connected to the power input end of the transmission mechanism.

[0005] After the lifting mechanism drives the driving mechanism to descend, the driving mechanism drives the left mounting shell and the right mounting shell to swing to both sides for opening and closing. At this time, the legs can complete the opening and closing movement without exerting force. After the driving mechanism descends, it can also perform leg extension and flexion exercises by actively moving the pedal like an existing leg press. After the lifting mechanism drives the driving mechanism to ascend, the power of the driving mechanism is output to the transmission mechanism, which in turn drives the pedal to rotate, and the flexion and extension movement of both legs can be completed without pedaling the pedal with the feet. After the driving mechanism ascends, it can also actively move to both sides by exerting force with the legs, and drive the left mounting shell and the right mounting shell to swing to both sides for opening and closing through the pedal to complete the lower limb opening and closing exercise. The opening and closing movement can also be a simultaneous unilateral movement for waist twisting exercise, and it can also be used as daily exercise after rehabilitation training, with strong applicability.

[0006] Further, the guiding mechanism includes a gear set. The gear set includes a helical gear rotatably mounted at the bottom of the mounting shell, and a rack fixed on the bottom plate and meshing with the helical gear and being arc-shaped.

[0007] The rack meshing with the helical gear moves in an arc during the opening and closing of the mounting shell, which is consistent with the trajectory of the feet opening and closing, can prevent the feet from displacing relative to the pedal, is convenient for exerting force, and is more comfortable and not easy to slip off.

[0008] Further, the helical gear is rotatably connected to the mounting shell through a rotating shaft. The rotating shaft is rotatably mounted inside the mounting shell, the helical gear is mounted on the rotating shaft, and one end of the rotating shaft is connected with a damping component that provides resistance during its rotation. A first driven gear is mounted on the rotating shaft on one side of the helical gear; The driving mechanism includes a motor mounted on the lifting platform of the lifting mechanism. The power output end of the motor is connected with a driving gear. After the motor descends, the driving gear meshes with the first driven gear.

[0009] In the early stage of limb rehabilitation, it is inconvenient for the legs to actively exert force. The lifting mechanism drives the motor to descend. The driving gear meshes with the first driven gear. When the driving gear rotates, it drives the first driven gear to rotate, and then drives the rotating shaft to rotate. The rotation of the rotating shaft drives the helical gear to rotate. The helical gear moves along the rack, realizing the left - right movement of the mounting shell. The left mounting shell moves to the left, and the right mounting shell moves to the right, opening the legs. When the left mounting shell moves to the right and the right mounting shell moves to the left, the legs close inward, helping the user complete the opening - closing exercise. When the lower limbs can actively complete the opening - closing exercise, the motor rises. The mounting shell can exert force to both sides through the legs, and the force is transmitted to the footrest by the feet, then driving the left mounting shell to move to the left and the right mounting shell to move to the right, opening the legs. When the legs exert force inward, driving the left mounting shell to move to the right and the right mounting shell to move to the left, the legs close inward, realizing the active opening - closing exercise. By adjusting the damping force of the damping output end through the damping adjustment end of the damping component, the resistance during the rotation of the rotating shaft is adjusted during the active opening - closing movement, facilitating resistance adjustment in stages and according to different needs. It can also be used as daily exercise after the rehabilitation training, with strong applicability.

[0010] Further, the transmission mechanism includes a turbine and a worm that are in meshing engagement. The worm is rotatably installed in the mounting shell. One end of the worm is connected to a second driven gear that meshes with the driving gear after the motor rises. The turbine is connected to the crank rotating shaft of the leg - kicking device body.

[0011] After the motor rises, the driving gear drives the second driven gear to rotate, then drives the worm to rotate. The turbine meshing with the worm rotates, and then drives the crank rotating shaft to rotate. The footrest rotates following the crank, realizing the flexion and extension of the lower limbs. When the motor descends, it can perform leg - kicking through active movement like an existing leg - kicking trainer, completing the flexion and extension exercise of the legs. It is convenient to adjust the resistance in stages and according to different needs. Thus, it can not only help the user perform flexion - extension and opening - closing of the lower limbs when the lower limbs have difficulty exerting force, promoting blood circulation, but also actively exercise the flexion - extension and opening - closing of the lower limbs at different stages. It can also be used as daily exercise after the rehabilitation training, with strong applicability.

[0012] Further, a fixing plate is slidably connected to the bottom of the base plate in the front - rear direction, and a position - adjusting mechanism is installed between the base plate and the fixing plate.

[0013] When the user sits on the seat or lies down, the left and right feet are respectively placed on the corresponding footrests. The base plate slides back and forth to realize the front - rear stretching exercise of the lower limbs. There are multiple exercise methods to choose from. The position - adjusting mechanism is used to adjust the front - rear position of the base plate and limit the position when the base plate needs to be fixed.

[0014] Further, the position - adjusting mechanism includes a linear motor installed on the top of the fixing plate, and the base plate is fixed on the slider of the linear motor.

[0015] The bottom plate is fixed on the slider at the top of the linear motor. The linear motor can drive the bottom plate to move back and forth, completing the front and back telescopic movements of the left and right feet, and can also adjust the position of the bottom plate in the front and back directions as needed.

[0016] Furthermore, a slide rail for guiding the left and right movement of the mounting shell is installed on the bottom plate, and a chute that cooperates with the slide rail is provided at the bottom of the mounting shell.

[0017] The slide rail facilitates the support and guiding of the mounting shell.

[0018] Furthermore, an anti-slip component is provided at the bottom of the fixing plate.

[0019] The anti-slip component can increase the stability of the device during use.

[0020] Furthermore, a limiting component is provided on the footrest.

[0021] The limiting component can limit the feet, etc., facilitating the limitation of users with inconvenient lower limbs during use.

[0022] Compared with the prior art, the present invention has the following beneficial effects: After the lifting mechanism drives the driving mechanism to descend, the driving mechanism drives the left mounting shell and the right mounting shell to swing to both sides for opening and closing. At this time, the legs do not need to exert force to complete the opening and closing movement. After the driving mechanism descends, it can also perform leg stretching and flexion exercises through active movement like an existing leg press machine; after the lifting mechanism drives the driving mechanism to rise, the power output of the driving mechanism is transmitted to the transmission mechanism, thereby driving the footrest to rotate, and the flexion and extension movements of both legs can be completed without using the feet to pedal the footrest. After the driving mechanism rises, it can also actively move to both sides by exerting force with the legs, driving the left mounting shell and the right mounting shell to swing to both sides for opening and closing to complete lower limb opening and closing exercises; the opening and closing movement can also be a simultaneous unilateral movement for waist twisting exercises, and it can also be used as daily exercise after rehabilitation training, with strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic front view structure diagram of the present invention; Figure 2 is Figure 1 a schematic top view structure diagram of; Figure 3 is Figure 1 a schematic cross-sectional structure diagram along line A-A in; Figure 4 is Figure 1 a three-dimensional structure diagram of the partial cross-section of the mounting shell in; Figure 5 is a schematic structure diagram of the present invention when performing opening and closing exercises on the legs; Figure 6 Schematic structural diagram of the present invention during waist-twisting exercise; Figure 7 Schematic structural diagram of the present invention when used in combination with a chair.

[0024] Names of each component in the figure: 1. Installation shell; 2. Transmission mechanism; 2.1 Turbine; 2.2 Worm; 3. Bearing seat; 4. Motor; 5. Lifting mechanism; 6. Slide rail; 7. Base plate; 8. Rack; 9. Linear motor; 10. Fixed plate; 11. Gear set; 11.1 First driven gear; 11.2 Helical gear; 11.3 Rotating shaft; 12. Damping component; 13. Driving gear; 14. Second driven gear; 15. Crank; 16. Footrest. Detailed implementation manners

[0025] The present invention will be further described below with reference to the accompanying drawings through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0026] The leg presser body refers to the pedal rotation part of the pedal rotation leg presser in the prior art, mainly including a pedal, a crank, a crank rotating shaft, a bearing, a damping adjustment structure, an electronic control system, a housing, etc. During use, the damping can be adjusted manually, or the damping can be automatically adjusted in cooperation with a sensor and a display screen to control the rotational resistance. The electronic control system is used to control the damping size and the centralized control of other electrical equipment. Embodiment

[0027] In this embodiment, "left" and "right" refer to the directions for placing the left foot and the right foot.

[0028] An elderly limb rehabilitation exercise device described in this embodiment is implemented by adopting the following scheme: As Figure 3 and Figure 4 shown, the fixed plate 10 has a square plate structure, and an anti-slip component for anti-slip is provided at its bottom. The anti-slip component can be an anti-slip pad, anti-slip lines or other anti-slip structures; a rectangular slide rail is provided at the top of the fixed plate 10, and a linear motor 9 is installed on the rectangular slide rail as a position adjustment mechanism, and the slider of the linear motor 9 can slide back and forth; the linear motor 9 is a known technology in the prior art, and a ball screw sliding mechanism can be used instead.

[0029] As Figure 1 shown, the base plate 7 is fixed on the top of the linear motor 9, specifically fixed on the slider of the linear motor 9; as Figure 2 shown, the base plate 7 is preferably a 1 / 4 sector plate, and a slide rail 6 and a rack 8 are installed at intervals in the front and back of its top surface. The slide rail 6 and the rack 8 are both arc-shaped in the left-right direction, and the cross-section is as Figure 1It is shown as an inverted trapezoidal structure, and the centers of the two coincide with the center of the bottom plate 7.

[0030] As Figure 3 shown, an installation shell 1 is installed on the top surface of the bottom plate 7; there are two installation shells 1, namely a left installation shell and a right installation shell, which are symmetrically arranged left and right, and are both square frames, or other outer shapes. As Figure 1 shown, sliding grooves that are slidably matched with the slide rails 6 and the racks 8 are arranged at the front and rear intervals at the bottom of the installation shell 1.

[0031] As Figure 1 shown, a through hole that penetrates the sliding groove that cooperates with the rack 8 is opened at the bottom of the installation shell 1, and a gear set 11 is installed through a bearing seat at the through hole. Figure 1 and Figure 4 shown, the gear set 11 includes a rotating shaft 11.3 connected to the bearing seat, and a first driven gear 11.1 and a helical gear 11.2 are respectively installed on the rotating shaft 11.3, wherein the helical gear 11.2 meshes with the rack 8.

[0032] As Figure 1 shown, on the side wall of the installation shell 1 on one side of the rotating shaft 11.3, a damping assembly 12 is installed corresponding to the position of the rotating shaft 11.3. The damping assembly 12 is composed of a damping rotating shaft and a rotating handle, and both of them are known in the prior art and are used to adjust the rotation resistance of the rotating shaft 11.3. The damping rotating shaft mainly consists of the following parts: an inner shaft, an outer shaft, damping material, a gasket and an adjusting nut. The outer shaft is fixed on the side wall of the installation shell 1, the inner shaft is fixedly connected to the rotating shaft 11.3, and the adjusting nut is connected to the rotating handle and is used to adjust the damping force, so as to adjust the rotation resistance of the rotating shaft 11.3.

[0033] As Figure 3 shown, an installation hole is opened at the upper part of the installation shell 1, and a crank rotating shaft is sleeved through a bearing. A crank 15 is sleeved at one end of the crank rotating shaft located outside the installation shell 1, and a foot pedal 16 is installed at the other end of the crank 15. The foot pedal 16 can also be a stepping structure in the prior art according to the comfort and applicability of use. The foot pedal 16 is installed with a strap or other auxiliary limiting components. According to actual use requirements, rollers can be installed in the foot pedal 16 to massage the acupoints on the sole of the foot, and protective components for protecting the feet, such as protective package foot pads, etc. can also be installed. The foot pedal 16 installed on the left installation shell is used to place the left foot, and the foot pedal 16 installed on the right installation shell is used to place the right foot.

[0034] As Figure 3 shown, the rotation of the crank 15 is transmitted through a transmission mechanism 2. Figure 1As shown in the figure, the transmission mechanism 2 includes a turbine 2.1 and also includes a worm 2.2 that cooperates with the turbine 2.1. The turbine 2.1 is sleeved on the crankshaft of the crank 15, and one end of the worm 2.2 is installed below it through a bearing seat 3. The turbine 2.1 and the worm 2.2 are meshed with each other; a second driven gear 14 is sleeved on one end of the worm 2.2.

[0035] As Figure 1 shown in the figure, on the inner bottom surface of the installation shell 1, a lifting mechanism 5 is installed. The lifting mechanism 5 is a lift in the prior art. An electric motor 4 is installed on the lifting platform at the top of the lifting mechanism 5. A driving gear 13 is sleeved on the power output end of the electric motor 4, that is, on the rotating shaft. When the electric motor 4 is raised to the upper limit position through the lifting mechanism 5, the driving gear 13 meshes with the second driven gear 14; when the electric motor 4 descends to the lower limit position, the driving gear 13 meshes with the first driven gear 11.1 in the gear set 11.

[0036] The usage instructions of the above technical solution are specifically as follows: Preparations before rehabilitation exercise, such as Figure 7 shown in the figure, the elderly or other users can sit on the chair. The user can adjust the sitting posture angle according to their own needs to ensure a comfortable position during the exercise. As Figure 4 shown in the figure, the user places their feet on the footrest 16 and limits them through the straps or other limiting components on the footrest 16 to ensure the stability of the feet during the subsequent leg movement.

[0037] When performing leg flexion and extension exercises: As Figure 1 shown in the figure, start the electric motor 4. The electric motor 4 slowly rises to the upper limit position through the lifting mechanism 5. During the rising process of the electric motor 4, soft start technology is adopted to make the driving gear 13 smoothly mesh with the second driven gear 14, avoiding the impact and discomfort caused by instant start. After the gears are meshed, the transmission mechanism 2 starts to operate, driving the crank 15 and the footrest 16 to rotate, thereby driving the legs of the elderly to perform regular and gentle movements. This kind of movement can effectively promote blood circulation in the legs of the elderly, relieve muscle tension and fatigue, and at the same time can also assist in exercising the muscles of the buttocks and abdomen. When the elderly need to actively kick their legs and perform leg flexion and extension exercises, the electric motor 4 can be stopped and lowered to separate from the second driven gear 14, enabling the elderly to actively exert force and move like pedaling a bicycle pedal.

[0038] When performing small-amplitude leg flexion and extension exercises: For the elderly who only need to perform small-amplitude movements, such as Figure 4As shown in the figure, the bottom plate 7 can be moved back and forth along the fixed plate 10 by the linear motor 9, so that the footrest 16 drives the calf of the elderly to move back and forth; or the linear motor 9 can stop working, and the installation shell 1 can be actively driven to move back and forth to perform active back-and-forth movement.

[0039] When performing passive leg opening and closing exercises: As Figures 3 to 5 shown in the figure, the footrest 16 is rotated to the lowest point, the motor 4 is turned off, and the lifting mechanism 5 is slowly lowered to the lower limit position. During the descent of the motor 4, soft start technology is used to smoothly engage the driving gear 13 with the first driven gear 11.1, avoiding the impact and discomfort caused by instant start. When the gear engagement is completed, the gear set 11 starts to rotate, and the helical gear 11.2 engages with the rack 8, so that as Figure 5 shown in the figure, the installation shell 1 is opened along the slide rail 6, as Figure 4 shown in the figure, it is closed and reciprocated. Due to the self-locking function of the turbine 2.1 and the worm 2.2, the footrest 16 will always remain at the lowest point, ensuring the safety and comfort of the elderly during passive movement.

[0040] When performing active leg opening and closing exercises: As Figure 1 shown in the figure, the motor 4 is moved between the second driven gear 14 and the gear set 11, and it is ensured that the motor 4 does not engage with either of them. At this time, the elderly can perform active leg opening and closing exercises. The elderly adjust the rotational damping of the gear set 11 through the damping component 12 to control the force required for leg opening and closing movements. This design enables the elderly to independently adjust the resistance of the movement according to their own rehabilitation situation and strength level, enhancing the effect and personalized experience of rehabilitation training, and at the same time preventing secondary injuries to the legs due to improper control of the active movement force.

[0041] When performing sitting posture assisted waist twisting exercises: As Figure 7 shown in the figure, prepare a chair and a rotating seat cushion; the elderly sit on the chair, with their buttocks on the rotating seat cushion, and their hands can be placed on the armrests of the chair to keep the upper body stable. As Figure 6 shown in the figure, adjust the position of the motor 4 to engage the driving gear 13 with the first driven gear 11.1, so that the footrest 16 drives the legs to slowly move back and forth on both sides of the bottom plate 7, and at the same time drives the waist to twist to the same side. This movement can effectively promote blood circulation in the waist and legs of the elderly, relieve muscle tension and fatigue, and at the same time can also assist in exercising the muscles of the buttocks and abdomen. When the elderly need to actively perform waist twisting exercises, they can adjust the position of the motor 4 with reference to the active leg opening and closing exercises, enabling the elderly to perform active movements according to their own abilities and needs.

[0042] After the device is used, it can be as Figure 7It can be stored under the chair as shown, and can also be used for daily exercise after the rehabilitation training, avoiding waste of resources.

[0043] It can be used in combination with the seat and can also be used in the lying position. It has a small structural footprint, multiple functions, and does not need to be specially installed in a fixed position, requiring less space.

Claims

1. An elderly limb rehabilitation exercise device, comprising a leg presser body, the leg presser body including a mounting shell (1), and pedals (16) for respectively placing the left and right feet are mounted on both sides of the mounting shell (1), characterized in that: The installation shell (1) includes a left installation shell for installing the left pedal (16) and a right installation shell for installing the right pedal (16); A driving mechanism for driving the pedal (16) to rotate is provided in the installation shell (1), and a transmission mechanism (2) for transmitting the power of the driving mechanism to the pedal (16) is installed in the installation shell (1) above the driving mechanism; The bottom of the driving mechanism is connected with a lifting mechanism (5) for driving its lifting. A bottom plate (7) is provided at the bottom of the installation shell (1). A guiding mechanism for the left and right installation shells to swing left and right around the same center point is provided between the bottom plate (7) and the installation shell (1). When the lifting mechanism (5) drives the driving mechanism to descend, the power output end of the driving mechanism is connected to the power input end of the guiding mechanism; when the lifting mechanism (5) drives the driving mechanism to ascend, the power output end of the driving mechanism is connected to the power input end of the transmission mechanism.

2. The elderly limb rehabilitation exercise device according to claim 1, wherein: The guiding mechanism includes a gear set (11), and the gear set (11) includes a helical gear (11.2) rotatably installed at the bottom of the installation shell (1). A rack (8) that is meshed with the helical gear (11.2) and is arc-shaped is fixed on the bottom plate (7).

3. The elderly limb rehabilitation exercise device according to claim 2, characterized in that: The helical gear (11.2) is rotatably connected to the installation shell (1) through a rotating shaft (11.3). The rotating shaft (11.3) is rotatably installed in the installation shell (1). The helical gear (11.2) is installed on the rotating shaft (11.3). One end of the rotating shaft (11.3) is connected with a damping component (12) that provides resistance during its rotation. A first driven gear (11.1) is installed on the rotating shaft (11.3) on one side of the helical gear (11.2); The driving mechanism includes a motor (4) installed on the lifting platform of the lifting mechanism. The power output end of the motor (4) is connected with a driving gear (13). After the motor (4) descends, the driving gear (13) is meshed with the first driven gear (11.1).

4. The elderly limb rehabilitation exercise device according to claim 3, characterized in that: The transmission mechanism (2) includes a turbine (2.1) and a worm (2.2) that are meshed with each other. The worm (2.2) is rotatably installed in the installation shell (1). One end of the worm (2.2) is connected with a second driven gear (14) that is meshed with the driving gear (13) after the motor (4) ascends. The turbine (2.1) is connected with the crank rotating shaft of the leg press body.

5. The elderly limb rehabilitation exercise device according to claim 4, characterized in that: The bottom of the bottom plate (7) is slidably connected with a fixing plate (10) in the front-rear direction, and a position adjusting mechanism is installed between the bottom plate (7) and the fixing plate (10).

6. The elderly limb rehabilitation exercise device according to claim 5, characterized in that: The position adjusting mechanism includes a linear motor (9) installed on the top of the fixing plate (10), and the bottom plate (7) is fixed on the slider of the linear motor (9).

7. The elderly limb rehabilitation exercise device according to any one of claims 1-6, characterized in that: A slide rail (6) for guiding the left and right movement of the installation shell (1) is installed on the bottom plate (7), and a chute that cooperates with the slide rail (6) is provided at the bottom of the installation shell (1).

8. The elderly limb rehabilitation exercise device according to claim 7, wherein: An anti-slip component is provided at the bottom of the fixing plate (10).

9. The elderly limb rehabilitation exercise device according to any one of claims 1-8, characterized in that: A limiting component is provided on the pedal (16).

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