Multifunctional forearm rotation rehabilitation training device

Abstract

A multifunctional forearm rotating rehabilitation training device comprises two twisting handles, the inner ends of the two twisting handles are oppositely sleeved together, a circle of hanging lugs are correspondingly arranged on the outer walls of the inner ends of the two twisting handles, a rubber band is hung between the corresponding hanging lugs, the twisting handles are an outer sleeve twisting handle and an inner sleeve twisting handle respectively, the two twisting handles are both cylinders, and the outer sleeve twisting handle and the inner sleeve twisting handle are both cylindrical. A transversely-penetrating holding hole is formed in the holding part of the twisting handle, a speed reduction torque motor is arranged in a barrel of the inner sleeve twisting handle, the end of an output shaft of the motor extends into the outer sleeve twisting handle and is provided with a driving fluted disc, and at least one positioning threaded sleeve is arranged on the outer wall of the outer sleeve twisting handle in the radial direction. A threaded hole in the positioning threaded sleeve penetrates through the outer wall of the outer sleeve twisting handle, a positioning screw is installed in the positioning threaded sleeve, and the inner end of the positioning screw is matched with a tooth opening in the fluted disc in shape and points to a tooth groove. The motor and the twisting handle can be combined and separated through the positioning screw barrel, and the trainer can be used for active training and passive training.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation training equipment for forearms and wrists, in particular to a multifunctional forearm rotation rehabilitation trainer. Background Art

[0002] In the field of rehabilitation training, stroke, multiple sclerosis, spinal cord injury, and cerebral palsy affect the lives of millions of people. For most patients with impaired neurological function, movement disorders are often associated with increased limb spasticity. Physical therapy is the main means of rehabilitation training at this stage, but the current status of existing training technology has many limitations.

[0003] Hemiplegic patients usually have motor dysfunction in the forearm joints. Since the forearm joints cannot rotate freely, it is difficult for the patients to take care of their own lives. However, the current upper limb rehabilitation robots mainly assist in gross motor training of the shoulder and elbow joints, and lack auxiliary rehabilitation training for the forearm joints. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a multifunctional forearm rotation rehabilitation trainer.

[0005] The technical solution of the present invention is: a multifunctional forearm rotation rehabilitation trainer, comprising two twist handles whose inner ends are relatively sleeved together, and a plurality of hanging ears are arranged on the outer walls of the inner ends of the two twist handles corresponding to each other, and a rubber band is hung between the corresponding hanging ears, and its characteristics are: the twist handles are respectively an outer twist handle and an inner twist handle, and the two twist handles are cylindrical bodies, and a horizontally penetrating holding hole is provided in the holding part of the twist handle, and a reduction torque motor is provided in the cylinder of the inner twist handle, and the end of the motor output shaft extends into the interior of the outer twist handle and is provided with a driving gear disk, and at least one positioning screw sleeve is arranged radially on the outer wall of the outer twist handle, and the threaded hole inside the positioning screw sleeve penetrates the outer wall of the outer twist handle, and a positioning screw is installed in the positioning screw sleeve, and the shape of the inner end of the positioning screw matches the shape of the tooth mouth on the gear disk and points to the tooth groove.

[0006] Preferably, the outer wall of the inner end of the twist handle is provided with an annular body, the ears are distributed around the annular body, a section of the twist handle located on the inner side of the annular body is a fitting part, and a section of the twist handle located on the outer side of the annular body is a gripping part, a marking line is provided on the surface of the fitting part of the inner sleeve twist handle, and the fitting part of the outer sleeve twist handle is made of transparent material, and a circle of scale lines is provided on the surface of the outer sleeve twist handle.

[0007] Preferably, the holding hole is arranged towards one side of the twist handle.

[0008] Preferably, a hole wall is provided in the gripping hole, and two ends of the hole wall are connected to the outer wall of the twisting handle as a whole and form an arc transition.

[0009] Preferably, there are two positioning screw sleeves, which are symmetrically arranged on both sides of the outer sleeve twist handle, and a positioning screw is installed in each positioning screw sleeve.

[0010] Preferably, the trainer also includes a base, which includes a lower fixed plate and a seat sleeve located in the middle of the fixed plate, the seat sleeve has a cylindrical axial seat hole at the upper end, the diameter of the seat hole matches the handle diameter of one of the twist handles, and a transverse through hole is provided in the middle of the seat sleeve, which corresponds to the gripping hole on the twisting handle; the trainer also includes a positioning transverse insert, the cross-sectional shape of the positioning transverse insert matches the cross-sectional shape of the gripping hole.

[0011] Preferably, axial positioning blocking bodies are provided at both ends of the tooth grooves of the positioning teeth of the driving gear disc.

[0012] The beneficial effects of the present invention are: 1. The trainer comprises two twist handles with inner ends relatively sleeved together, and a plurality of hanging ears are arranged on the inner end outer walls of the two twist handles in a circle corresponding to each other, and a rubber band is hung between the corresponding hanging ears, and the twist handles are respectively an outer twist handle and an inner twist handle, and both twist handles are cylindrical, and a gripping hole is arranged transversely in the gripping part of the twist handle, and a reduction torque motor is arranged in the cylinder of the inner twist handle, and the end of the motor output shaft extends into the interior of the outer twist handle and is provided with a driving gear disk, and at least one positioning screw sleeve is arranged radially on the outer wall of the outer twist handle, and the threaded hole inside the positioning screw sleeve penetrates the outer wall of the outer twist handle, and a positioning screw is installed in the positioning screw sleeve, and the shape of the inner end of the positioning screw matches the shape of the tooth mouth on the gear disk and points to the tooth groove. The positioning screw screw sleeve can realize the combination and separation between the motor and the twist handle, and the trainer can be used for active training or passive training.

[0013] 2. After the twisting handle is inserted into the base and installed, the trainer can also be used with one hand. The base and the twisting handle are positioned through the grip hole, and one hole can be used for two purposes. The base can be fixed to the wall or the desktop to achieve twisting training in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the multifunctional forearm rotation rehabilitation trainer; Figure 2 for Figure 1 BB cross-sectional structure diagram; Figure 3 for Figure 1 AA cross-sectional structural diagram; Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure; Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the outer jacket twisting handle; Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the inner sleeve twist handle; Figure 7 It is a three-dimensional structural diagram of the motor and the driving gear disc; Figure 8 is a schematic diagram of the three-dimensional structure of the base; Fig. 9 This is a schematic diagram of the main structure of the multifunctional forearm rotation rehabilitation trainer after the base is installed; Fig.10 for Fig. 9 BB cross-sectional structure diagram; Fig.11 for Figure 8 Schematic diagram of the three-dimensional structure; In the figure: 1. outer sleeve twist handle, 2. inner sleeve twist handle, 3. ear, 4. rubber band, 5. holding hole, 6. reduction torque motor, 7. driving gear plate, 8. positioning screw sleeve, 9. positioning screw, 71. tooth mouth, 10. ring body, 11. set part, 12. holding part, 13. marking line, 14. scale line, 15. base, 151. fixing plate, 152 seat cover, 153. seat hole, 154. through hole, 16. positioning horizontal insertion. DETAILED DESCRIPTION

[0015] The following is a detailed description of the implementation and use of the invention with reference to the accompanying drawings.

[0016] Example 1: See Figure 1-7 The figure shows a multifunctional forearm rotation rehabilitation trainer, which comprises two twisting handles whose inner ends are relatively sheathed together, and a plurality of hanging ears are arranged on the outer walls of the inner ends of the two twisting handles corresponding to each other, and a rubber band is hung between the corresponding hanging ears. The twisting handles are respectively an outer twisting handle and an inner twisting handle, and the two twisting handles are cylindrical bodies, and a horizontally penetrating holding hole is arranged in the holding part of the twisting handle, and a reduction torque motor is arranged in the cylinder of the inner twisting handle, and the end of the motor output shaft extends into the interior of the outer twisting handle and is provided with a driving gear disk, and at least one positioning screw sleeve is radially arranged on the outer wall of the outer twisting handle, and the threaded hole inside the positioning screw sleeve penetrates the outer wall of the outer twisting handle, and a positioning screw is installed in the positioning screw sleeve, and the shape of the inner end of the positioning screw matches the shape of the tooth mouth on the gear disk and points to the tooth groove. After the positioning screw is disengaged from the toothed disc, the motor and the outer sleeve twisting handle are disengaged, and the two twisting handles can be held for twisting. This is generally used by trainees with certain gripping abilities. After the positioning screw is screwed in, the inner end is inserted into the tooth mouth of the toothed disc, and the outer sleeve twisting handle is combined with the motor. At this time, the motor can drive the two twisting handles to rotate relative to each other. This is used by trainees who do not have the gripping ability. At this time, the hands of the trainees need to be inserted into the gripping hole and tied to the outside, so that passive training can be achieved.

[0017] The above-mentioned hanging rubber band can be removed during passive training, and hung up as resistance during active training.

[0018] The inner end outer wall of the twisting handle is provided with an annular body, the ears are distributed around the annular body, a section of the twisting handle located inside the annular body is a fitting part, and a section of the twisting handle located outside the annular body is a gripping part. The fitting part of the inner sleeve twisting handle is provided with a marking line on its surface, and the fitting part of the outer sleeve twisting handle is made of a transparent material, and a circle of scale lines is provided on the surface of the outer sleeve twisting handle. The relative scales of the two can show the degree of twisting, and can provide quantitative effect evaluation for trainees.

[0019] The gripping hole is arranged toward one side of the twisting handle. In this way, after the trainee inserts the palm of the trainee into the gripping hole and grips the thicker side, the axis of the twisting handle will be located in the palm, and the trainee will not feel uncomfortable when twisting the handle.

[0020] A hole wall is arranged in the gripping hole, and two ends of the hole wall are connected to the outer wall of the twisting handle as a whole and have an arc transition; the gripping is comfortable and does not affect the internal structure of the twisting handle.

[0021] There are two positioning screw sleeves, which are symmetrically arranged on both sides of the outer sleeve twisting handle, and a positioning screw is installed in each positioning screw sleeve. The positioning is more secure, and the force is balanced when the motor drives the passive training. Axial positioning blocking bodies are provided at both ends of the tooth groove of the positioning teeth of the driving toothed disc. In this way, when the positioning screw is inserted into the tooth groove, axial positioning and radial positioning are achieved with the toothed disc, so that the positioning screw will not connect the toothed disc and the outer sleeve twisting handle into an integrated structure, and synchronous movement is achieved.

[0022] The training method of the trainer in the first embodiment: 1. Passive training First, screw in the positioning screw so that its inner end is inserted into the tooth opening of the toothed disc, so as to realize the combination of the outer twisting handle and the motor, and the rubber band can be removed at the same time; insert the two palms of the trainee into the gripping holes respectively, and tie the gripped hands and the twisting handles together with the binding belt outside, start the motor to rotate, and after the motor's reducer reduces the speed and increases the torque, the two twisting handles are slowly driven to rotate relative to each other, thereby driving the trainee's forearms to twist relative to each other. If the motor torque is large enough, the rubber band can also be left intact.

[0023] 2. Active training Withdraw the positioning screw to disengage its inner end from the teeth of the gear disk, thereby separating the outer sleeve twisting handle from the motor. At this time, the rubber band should be hung as shown in the attached figure; the trainee's two palms are respectively inserted into the holding holes, or the twisting handle is directly held, which is selected according to the trainee's gripping ability; then both hands are twisted back and forth in opposite directions to perform active forearm rotation training. If the resistance is considered insufficient, the resistance can be adjusted by adjusting the hanging method of the rubber band.

[0024] Example 2: See Figure 8-11 , Embodiment 2 contains all the technical features of Embodiment 1. The trainer of Embodiment 2 also contains a base, which includes a fixed plate at the bottom and a seat cover located in the middle of the fixed plate. The seat cover has a cylindrical axial seat hole at the upper end, and the diameter of the seat hole matches the handle diameter of one of the twisting handles. A transverse through hole is provided in the middle of the seat cover, which corresponds to the gripping hole on the twisting handle. The trainer also contains a positioning transverse plug, and the cross-sectional shape of the positioning transverse plug matches the cross-sectional shape of the gripping hole. After being inserted into the base, the trainer can also be used with one hand. The base and the twisting handle are positioned by the gripping hole, and one hole can be used for two purposes. The base can be fixed to a wall or a desktop to achieve twisting training in different directions.

[0025] The training method of the trainer in the second embodiment: 3. One-handed training This one-handed training is used for some patients who only have one hand. The base is fixed to a wall or a horizontal plane, one of the twist handles is removed and inserted into the seat hole, and the twist handle is inserted horizontally to connect the twist handle to the base. The remaining training methods are the same as the previous passive training and active training methods. They can be achieved by referring to the training methods 1 and 2 in the previous embodiment 1, and no further details are given here.

Claims

1. A multifunctional forearm rotation rehabilitation trainer, comprising two twisting handles with inner ends relatively sheathed together, a plurality of hanging ears are arranged on the inner end outer walls of the two twisting handles in a circle corresponding to each other, and rubber bands are hung between the corresponding hanging ears, wherein: The twist handles are respectively an outer twist handle and an inner twist handle. Both twist handles are cylindrical. A gripping hole that runs horizontally through the gripping part of the twist handle is provided. A reduction torque motor is provided in the cylinder of the inner twist handle. The end of the motor output shaft extends into the interior of the outer twist handle and is provided with a driving gear disk. At least one positioning screw sleeve is radially arranged on the outer wall of the outer twist handle. The threaded hole inside the positioning screw sleeve penetrates the outer wall of the outer twist handle. A positioning screw is installed in the positioning screw sleeve. The shape of the inner end of the positioning screw matches the shape of the tooth mouth on the gear disk and points to the tooth groove.

2. The multifunctional forearm rotation rehabilitation trainer according to claim 1, characterized in that: The inner end outer wall of the twist handle is provided with an annular body, the ears are distributed around the annular body, a section of the twist handle located on the inner side of the annular body is a sleeve portion, and a section of the twist handle located on the outer side of the annular body is a grip portion. The surface of the sleeve portion of the inner sleeve twist handle is provided with a marking line, and the sleeve portion of the outer sleeve twist handle is made of a transparent material, and a circle of scale lines is provided on the surface of the outer sleeve twist handle.

3. The multifunctional forearm rotation rehabilitation trainer according to claim 1, characterized in that: The holding hole is arranged toward one side of the twisting handle.

4. The multifunctional forearm rotation rehabilitation trainer according to claim 1, characterized in that: A hole wall is arranged in the gripping hole, and two ends of the hole wall are connected with the outer wall of the twisting handle to form a whole and form an arc transition.

5. The multifunctional forearm rotation rehabilitation trainer according to claim 1, characterized in that: There are two positioning screw sleeves, which are symmetrically arranged on both sides of the outer sleeve twisting handle, and a positioning screw is installed in each positioning screw sleeve.

6. The multifunctional forearm rotation rehabilitation trainer according to claim 1, characterized in that: The trainer also includes a base, which includes a lower fixed plate and a seat sleeve located in the middle of the fixed plate. The seat sleeve has a cylindrical axial seat hole at the upper end, and the diameter of the seat hole matches the handle diameter of one of the twisting handles. A transverse through hole is provided in the middle of the seat sleeve, and the through hole corresponds to the gripping hole on the twisting handle. The trainer also includes a positioning transverse insert, and the cross-sectional shape of the positioning transverse insert matches the cross-sectional shape of the gripping hole.

7. The multifunctional forearm rotation rehabilitation trainer according to any one of claims 1 to 6, characterized in that: Axial positioning blocking bodies are provided at both ends of the tooth grooves of the positioning teeth of the driving gear disc.

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