Adjustable upper limb training device
By designing an adjustable upper limb training device and using slider and guide rail structure to achieve front and rear adjustment and angle adjustment, the existing equipment is solved by limiting weak and inability to move in the horizontal direction, and stability and adaptability are achieved, and the structure is simple and easy to manufacture.
Patent Information
- Application Number
- CN202421073077.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing upper limb training equipment has weak limits in the horizontal direction, which is prone to unstable swing and cannot move in the horizontal front and back direction, which is inconvenient to adapt to the needs of different trainers and has a slightly complex structure.
An adjustable upper limb training device is designed, using a motor output shaft to connect the crutch and the handle. The motor is fixed to the bracket beam, and the end shaft is rotatably connected to the slider. The slider slides on the guide rail. The front and rear adjustments and angle adjustments are achieved through screw holes and screwing bolts. A movable limit block and fixed limit block are added to ensure that the limits in all directions are firm.
The front and rear adjustment and angle adjustment of the device are realized, adapting to the needs of different trainers, with firm limits in all directions avoiding unstable phenomena, and the structure is relatively simple and easy to manufacture.
Smart Images
Figure CN222816228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to rehabilitation training equipment, in particular to an adjusting device for upper limb training, and belongs to the technical field of machinery. Background Art
[0002] An upper limb rehabilitation training device that uses a motor to provide resistance and assistance for active and passive training is a common device used for rehabilitation training of upper limb dysfunction caused by nerve damage. This device can be a separate upper limb training device or integrated in a limb training device. This device generally uses crutches at both ends of the motor's output shaft, and the patient holds the crutches for training. The output shaft of the motor on common training devices is generally horizontal to the left and right relative to the patient, which may cause inconvenience to some patients with physical dysfunction caused by hemiplegia. In order to overcome this defect, the applicant disclosed an active and passive upper limb training device angle adjustment mechanism in Chinese Patent Application No. 2023214884943. The mechanism can adjust the angle to adapt to the use of patients with different requirements. In actual use, it is found that the structure has the following problems that need to be improved: First, the horizontal restriction of the mechanism is relatively weak. If a large resistance is sampled during upper limb training, horizontal swing will occur. This instability makes the patient feel uncomfortable and produces psychological negative effects; second, the mechanism cannot move in the horizontal front and back direction, which is not convenient to adapt to the needs of different trainees. Third, the mechanism is slightly complicated. Summary of the invention
[0003] The purpose of the utility model is to overcome the above problems existing in the existing upper limb training equipment and to provide an adjustable upper limb training device.
[0004] To achieve the purpose of the utility model, the following technical scheme is adopted: an adjustable upper limb training device, the upper limb training device comprises a motor, both ends of the output shaft of the motor are connected with a crutch, the crutch is connected with a handle, the motor is fixedly connected to the support beam, and the rear end of the support beam is fixedly connected with an end shaft, characterized in that: the end shaft is rotatably connected to the slider, the slider is horizontally slidably installed on the guide rail in the front and rear directions, a tightening bolt is screwed on the guide rail through a screw hole, the tightening bolt is fixed on the brake plate, the brake plate is pressed on the slider, an open locking sleeve is fixedly connected to the slider at one end of the connecting end shaft, the end shaft passes through the locking sleeve, and the corresponding end faces of the opening of the locking sleeve are machined with relative screw holes, one or two of the screw holes are through holes, the handle bolt is screwed from one end of the through hole to the other screw hole, an active limit block is fixedly connected to the end shaft, and a fixed limit block is fixedly connected to the locking sleeve or the slider, and when the end shaft rotates, the active limit block interferes with the fixed limit block when it turns to the fixed limit block.
[0005] Furthermore, a glass bead bolt is screwed on the locking sleeve wall through a screw hole, and a plurality of response holes are opened on the end shaft. When the end shaft rotates, the beads at the end of the glass bead bolt can enter the response hole, and the response hole is a through hole or a blind hole.
[0006] Furthermore, the slider is an inverted U-shape, and a shock-absorbing pad is fixedly connected to the inner wall of the U-shaped edge.
[0007] Furthermore; the glass ball bolt is located at the upper vertical position of the locking sleeve, and when the output shaft of the motor is in the horizontal left and right direction, the movable limit block is located at the upper vertical position of the end shaft, and there are two fixed limit blocks, which are respectively located at the positive and negative 120 degrees of the movable limit block.
[0008] Furthermore, there are five response holes. When the output shaft of the motor is in the horizontal left and right direction, the five response holes are respectively located directly above the end shaft, directly above at a position of plus or minus 45 degrees, and directly above at a position of plus or minus 90 degrees.
[0009] The positive and beneficial technical effects of the utility model are: the device has a relatively simple structure, is easy to manufacture, can be adjusted front and back and at an angle, has good adaptability to users with different training, is firmly limited in all directions, and will not be unstable during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is an overall schematic diagram of the utility model.
[0011] Figure 2 It is a partial schematic diagram of the utility model.
[0012] Figure 3 It is a partial schematic diagram after removing the locking sleeve. DETAILED DESCRIPTION
[0013] In order to more fully explain the implementation of the utility model, implementation examples of the utility model are provided. These implementation examples are only for the purpose of illustrating the utility model and do not limit the scope of the utility model.
[0014] The utility model is further explained in detail in conjunction with the accompanying drawings, in which the marks are: 1: motor; 2: crutch; 3: handle; 4: support beam; 5: end shaft; 6: slider; 7: guide rail; 8: mounting block; 9: brake plate; 10: tightening bolt; 11: locking sleeve; 12: handle bolt; 13: shock-absorbing pad; 14: movable positioning block; 15: fixed positioning block; 16: glass ball bolt; 17: response hole.
[0015] As shown in the accompanying drawings, an adjustable upper limb training device includes a motor 1, both ends of the motor output shaft are connected to crutch 2, and the crutch is connected to a handle 3. The motor is fixedly connected to a support beam 4, and the rear end of the support beam is fixedly connected to an end shaft 5. The above is the prior art. The end shaft is rotatably connected to a slider 6, and the slider 6 is slidably installed on a guide rail 7 in the horizontal front and rear directions. The slider is an inverted U-shape, and a shock-absorbing pad 13 is fixedly connected to the inner wall of the U-shaped edge. The shock-absorbing pad 13 plays a shock-absorbing role when the slider contacts the guide rail. A mounting block is fixedly connected to the guide rail 7. The mounting block is used to fix the upper limb training device on a corresponding fixed object (such as equipment, bracket), and a tightening screw is screwed on the guide rail through a screw hole. Bolt 10, the tightening bolt 10 is pressed against the brake plate 9, and the brake plate 9 is pressed against the slider to position the slider. An open locking sleeve 11 is fixedly connected to the slider at one end of the connecting end shaft, and the end shaft 5 passes through the locking sleeve. In this embodiment, the end shaft is a rotary circular shaft, and the end faces corresponding to the opening of the locking sleeve are machined with relative screw holes, one or two of the screw holes are through holes, and the handle bolt 12 is screwed from one end of the through hole to the other screw hole. A movable limit block 14 is fixedly connected to the end shaft, and a fixed limit block 15 is fixedly connected to the locking sleeve or the slider. In this embodiment, the fixed limit block is fixedly connected to the rear end face of the locking sleeve. When the end shaft rotates, the movable limit block rotates to the fixed limit block and the two interfere with each other. In this embodiment, when the output shaft of the motor is horizontal to the left or right, the movable limit block is located at the upper end of the vertical direction of the end shaft, and there are two fixed limit blocks, which are respectively located at the positions of positive and negative 120 degrees of the movable limit block. In this way, the end shaft can only reach a maximum of positive and negative 120 degrees, which limits the support beam from being able to rotate 360 degrees, thus protecting the motor circuit.
[0016] As a further improvement, a glass bead bolt 16 is screwed on the wall of the locking sleeve through a screw hole, and a plurality of response holes are opened on the end shaft. When the end shaft rotates, the beads at the end of the glass bead bolt can enter the response hole, and the response hole is a through hole or a blind hole. In this embodiment, the glass bead bolt is located in the upper part of the locking sleeve in the vertical direction, and there are five response holes. When the output shaft of the motor is in the horizontal left and right direction, the five response holes are respectively located directly above the end shaft, directly above at a position of plus or minus 45 degrees, and directly above at a position of plus or minus 90 degrees. The function of the glass bead bolt and the response hole is to be able to detect when the glass bead enters the response hole when the end shaft is rotated, so that the angle position can be confirmed, and sensory feedback can be achieved at plus or minus 90° and plus or minus 45°. These positions are also common training angle positions.
[0017] After describing the implementation mode of the utility model in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the scope of the technical solution of the utility model, and the utility model is not limited to the implementation mode of the examples given in the specification.
Claims
1. An adjustable upper limb training device, comprising a motor, both ends of the motor output shaft are connected to a crutch, the crutch is connected to a handle, the motor is fixedly connected to a support beam, the rear end of the support beam is fixedly connected to an end shaft, characterized in that: The end shaft is rotatably connected to the slider, and the slider is slidably installed on the guide rail in the horizontal front and rear directions. A tightening bolt is screwed on the guide rail through a screw hole, and the tightening bolt is fixed on the brake plate, and the brake plate is pressed on the slider. An open locking sleeve is fixedly connected to the slider at one end of the connected end shaft, and the end shaft passes through the locking sleeve. Relative screw holes are processed on the corresponding end faces of the opening of the locking sleeve, and one or two of the screw holes are through holes. The handle bolt is screwed from one end of the through hole to the other screw hole, and a movable limit block is fixedly connected to the end shaft, and a fixed limit block is fixedly connected to the locking sleeve or the slider. When the end shaft rotates, the movable limit block interferes with the fixed limit block when it turns to the fixed limit block.
2. An adjustable upper limb training device according to claim 1, characterized in that: A glass bead bolt is screwed on the locking sleeve wall through a screw hole, and a plurality of corresponding holes are opened on the end shaft. When the end shaft rotates, the beads at the ends of the glass bead bolts can enter the corresponding holes, and the corresponding holes are through holes or blind holes.
3. The adjustable upper limb training device according to claim 1, characterized in that: The sliding block is in an inverted U shape, and a shock-absorbing pad is fixedly connected to the inner wall of the U-shaped edge.
4. The adjustable upper limb training device according to claim 2, characterized in that: The glass ball bolt is located at the upper vertical position of the locking sleeve. When the output shaft of the motor is in the horizontal left and right direction, the movable limit block is located at the upper vertical position of the end shaft. There are two fixed limit blocks, and the two fixed limit blocks are respectively located at the positive and negative 120 degrees of the movable limit block.
5. The adjustable upper limb training device according to claim 2, characterized in that: There are five response holes. When the output shaft of the motor is in the horizontal left and right direction, the five response holes are respectively located directly above the end shaft, directly above at a position of plus or minus 45 degrees, and directly above at a position of plus or minus 90 degrees.