Power module and limb rehabilitation training device

CN224370191UActive Publication Date: 2026-06-19SHANGHAI ZHUODAO MEDICAL TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHUODAO MEDICAL TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The power module structure of existing limb rehabilitation training machines is complex, which makes production, assembly and maintenance difficult and costly.

Method used

The design integrates a worm gear reducer motor and bearing housing, and incorporates a detection component consisting of a magnet and a Hall sensor. This allows for a detachable connection between the motor output and the bearing housing, simplifying the power module structure. Furthermore, the combination of two bearings with the bearing housing enables high-load operation.

Benefits of technology

The production and assembly process of the power module has been simplified, the failure rate and production cost have been reduced, and maintenance has been made easier, thus improving the reliability and applicability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to rehabilitation training equipment technical field especially is involved in a kind of power module and limb rehabilitation training equipment.Power module includes: motor, bearing and bearing seat;Motor is worm gear reduction motor;Motor has output shaft, and output shaft has opposite first output part and second output part;Bearing and bearing seat are all configured as two;Bearing is installed on first output part and second output part, and first output part and second output part are connected respectively through bearing thereon with two bearing seats;Two bearing seats can be detachably connected with the mainframe of limb rehabilitation training equipment.By integrating motor, bearing and bearing seat, it has the advantages of simple structure, convenient production and assembly, low failure rate and controllable production cost;Power module can be detachably mounted on the mainframe of limb rehabilitation training equipment through its two bearing seats, simple assembly, and convenient maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of rehabilitation training equipment technology, and in particular to a power module and limb rehabilitation training equipment. Background Technology

[0002] A limb rehabilitation training machine is a device used by patients with limb coordination disorders to rehabilitate their limbs. It helps patients complete periodic multi-joint compound movements that simulate cycling motions in order to prevent or reduce symptoms of muscle spasms and joint contractures.

[0003] The power modules of existing limb rehabilitation training machines generally use motors and belt drives, which have relatively complex structures. The operation requirements are high in the process of manufacturing and processing parts, product assembly and maintenance, resulting in high costs. Utility Model Content

[0004] (I) The problem to be solved by this utility model is that the power module of the limb rehabilitation training machine has a complex structure, which is not convenient for production, processing, assembly and maintenance.

[0005] (II) Technical Solution

[0006] To address the aforementioned technical problems, one embodiment of this utility model provides a power module for limb rehabilitation training equipment; the power module includes: a motor, a bearing, and a bearing housing;

[0007] The motor is a worm gear reducer motor; the motor has an output shaft, and the output shaft has a first output part and a second output part that are opposite to each other;

[0008] There are two bearings and two bearing seats; the first output part and the second output part are each equipped with the bearings, and the first output part and the second output part are respectively connected to the two bearing seats through the bearings thereon; the two bearing seats can be detachably connected to the main frame of the limb rehabilitation training equipment.

[0009] Furthermore, the power module also includes a first detection component; the first detection component includes a magnet and a Hall sensor;

[0010] The magnet is fixedly mounted on the first output section, and the Hall sensor is fixedly mounted on the bearing seat located on the first output section;

[0011] And / or, the magnet is fixedly mounted on the second output section, and the Hall sensor is fixedly mounted on the bearing seat located on the second output section.

[0012] Furthermore, when the magnet is fixedly disposed on the first output part, the first output part is provided with a countersunk hole, and the magnet is fixedly disposed in the countersunk hole;

[0013] When the magnet is fixedly mounted on the second output section, the second output section is provided with a countersunk hole, and the magnet is fixedly mounted in the countersunk hole.

[0014] Furthermore, the power module also includes a second detection component; the second detection component includes an coded magnet and an encoder;

[0015] The motor also has a rotor shaft, the encoding magnet is fixedly mounted on the rotor shaft, and the encoder is fixedly mounted on the motor.

[0016] Furthermore, the encoding magnet is fixedly disposed at the tail end of the rotor shaft; the tail end of the motor is provided with a plurality of isolation posts, and the encoder is fixedly disposed on the isolation posts.

[0017] Another embodiment of this utility model provides a limb rehabilitation training device, including a limb module, a main frame, and the aforementioned power module;

[0018] The power module is detachably mounted inside the main frame via the bearing housing;

[0019] The limb module includes a left limb component and a right limb component;

[0020] Both the left limb component and the right limb component are rotatably connected to the main frame, and the left limb component is driven to the first output unit, while the right limb component is driven to the second output unit. The power module drives the left limb component and the right limb component to rotate.

[0021] Furthermore, both the power module and the limb module are configured in pairs;

[0022] The two power modules are the upper limb power module and the lower limb power module, respectively;

[0023] The two limb modules are the upper limb module corresponding to the upper limb power module and the lower limb module corresponding to the lower limb power module.

[0024] Furthermore, the main frame includes an upper frame, a lower frame, and a lifting column;

[0025] The upper frame is located above the lower frame, the upper limb power module and the upper limb module are both located on the upper frame, and the lower limb power module and the lower limb module are both located on the lower frame;

[0026] One end of the lifting column is fixedly mounted on the lower frame and the other end is fixedly mounted on the upper frame. The lifting column drives the upper frame to move closer to or further away from the lower frame.

[0027] Furthermore, the limb rehabilitation training device also includes interactive components fixedly mounted on the upper frame;

[0028] The interactive component is used to interact with the user. Both the upper limb power module and the lower limb power module are electrically connected to the interactive component. The user can send commands to the upper limb power module and the lower limb power module through the interactive component.

[0029] The beneficial effects of this utility model are:

[0030] This utility model provides a power module for a limb rehabilitation training device. The power module includes a motor, bearings, and bearing housings. The motor is a worm gear reducer motor. The motor has an output shaft with opposing first and second output sections. Two bearings and two bearing housings are configured. The bearings are mounted on both the first and second output sections, and the first and second output sections are respectively connected to the two bearing housings via the bearings on them. Both bearing housings can be detachably connected to the main frame of the limb rehabilitation training device.

[0031] By integrating the motor, bearings, and bearing housings, it has the advantages of simple structure, easy production and assembly, low failure rate, and controllable production and manufacturing costs. At the same time, by configuring two bearings and two bearing housings to cooperate, high-load operation can be achieved. The power module can be detachably installed on the main frame of the limb rehabilitation training equipment through its two bearing housings, which is simple to assemble and convenient to maintain. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the power module provided in an embodiment of this utility model;

[0034] Figure 2 An exploded view of the power module provided in an embodiment of this utility model;

[0035] Figure 3A schematic diagram of the structure of the limb rehabilitation training device provided in this embodiment of the utility model;

[0036] Figure 4 A schematic diagram of the internal structure of the limb rehabilitation training device provided in this embodiment of the utility model;

[0037] Figure 5 This is a structural diagram of the left upper limb component;

[0038] Figure 6 This is a structural diagram of the left lower limb component.

[0039] Icons: 1-Power module; 11-Upper limb power module; 12-Lower limb power module; 111-Motor; 112-Bearing; 113-Bearing housing; 114-Output shaft; 1141-First output section; 1142-Second output section; 115-Magnet; 116-Hall sensor; 117-Encoding magnet; 118-Encoder; 119-Isolation post;

[0040] 2-Main frame; 21-Upper frame; 22-Lower frame; 23-Lifting column;

[0041] 31-Upper limb module; 311-Left upper limb component; 3111-Handle; 3112-Upper limb crank; 312-Right upper limb component; 32-Lower limb module; 321-Left lower limb component; 3211-Pedal frame; 3212-Pedal liner; 3213-Leg rest crank; 3214-Leg rest; 3215-Lower limb crank; 322-Right lower limb component;

[0042] 4-Interactive components. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0050] like Figure 1 and Figure 2As shown, one embodiment of this utility model provides a power module 1, which is applied to a limb rehabilitation training device. The power module 1 includes a motor 111, a bearing 112, and a bearing housing 113. The motor 111 is preferably a worm gear reducer motor; by optimizing the assembly process, the overall performance and service life of the motor 111 can be extended. The motor 111 has an output shaft 114, which has a first output section 1141 and a second output section 1142. The output shaft 114 can be a single, integral shaft with its left and right ends serving as the first output section 1141 and the second output section 1142, or it can consist of two shaft sections, each serving as the first output section 1141 and the second output section 1142, respectively. The rotation direction and speed of the first output section 1141 and the second output section 1142 are the same, used to drive the left and right limb components of the limb rehabilitation training device to rotate. The aforementioned bearing 112 and bearing housing 113 are both configured in pairs. The first output part 1141 and the second output part 1142 are both fitted with the aforementioned bearing 112. The first output part 1141 is mounted on one of the bearing housings 113 via the bearing 112 thereon, and the second output part 1142 is mounted on the other bearing housing 113 via the bearing 112 thereon. The two bearing housings 113 are spaced apart and arranged opposite to each other. Both bearing housings 113 can be detachably mounted on the main frame 2 of the limb rehabilitation training equipment by means of structures such as bolts, screws or clips.

[0051] The power module 1 provided in this embodiment integrates the motor 111, bearing 112, and bearing housing 113, which has the advantages of simple structure, easy production and assembly, low failure rate, and controllable production and manufacturing costs. At the same time, by configuring two bearings 112 and two bearing housings 113 to cooperate, high-load operation can be achieved. The power module 1 can be detachably installed on the main frame 2 of the limb rehabilitation training equipment through its two bearing housings 113, which is simple to assemble and convenient to maintain.

[0052] In the optional implementation of this embodiment, such as Figure 2As shown, the aforementioned power module 1 also includes a first detection component, which includes a magnet 115 and a Hall sensor 116. The first detection component uses position feedback output by the motor 111 to better control the training posture. Since the first output unit 1141 and the second output unit 1142 have the same direction of rotation and speed, the first detection component can cooperate with the first output unit 1141, the second output unit 1142, or both simultaneously. Specifically, the magnet 115 can be fixedly mounted on the first output section 1141, and correspondingly, the Hall sensor 116 is fixedly mounted on the bearing seat 113 located on the first output section 1141; the magnet 115 can also be fixedly mounted on the second output section 1142, and correspondingly, the Hall sensor 116 is fixedly mounted on the bearing seat 113 located on the second output section 1142; alternatively, both the first output section 1141 and the second output section 1142 can be provided with magnets 115, and both the bearing seat 113 located on the first output section 1141 and the bearing seat 113 located on the second output section 1142 can be provided with Hall sensors 116.

[0053] Preferably, in this embodiment, when the magnet 115 is fixedly mounted on the first output section 1141, a countersunk hole is provided on the first output section 1141, and the magnet 115 is fixedly mounted in the countersunk hole to facilitate the installation of the magnet 115 and prevent the magnet 115 from affecting the normal operation of the first output section 1141. The magnet 115 can also be fixed in the countersunk hole by adhesive. When the magnet 115 is fixedly mounted on the second output section 1142, a countersunk hole is provided on the second output section 1142, and the magnet 115 is fixedly mounted in the countersunk hole to facilitate the installation of the magnet 115 and prevent the magnet 115 from affecting the normal operation of the second output section 1142. The magnet 115 can also be fixed in the countersunk hole by adhesive.

[0054] In the optional implementation of this embodiment, such as Figure 2 As shown, the power module 1 also includes a second detection component. This second detection component is used to collect the speed and position of the motor 111 during operation. Through the cooperation of the first and second detection components, dynamic control can be implemented on the speed and position output by the motor 111. The second detection component includes an encoding magnet 117 and an encoder 118. The motor 111 also has a rotor shaft for mounting the rotor. The encoding magnet 117 is fixedly mounted on the rotor shaft, and the encoder 118 is fixedly mounted on the motor 111.

[0055] Furthermore, in this embodiment, the encoding magnet 117 is fixedly disposed at the tail end of the rotor shaft, and the tail end of the motor 111 is provided with a plurality of isolation posts 119, which are located on the periphery of the rotor shaft, and the encoder 118 is fixed on the isolation posts 119. Preferably, a mounting base is fixedly disposed at the tail end of the rotor shaft, and the encoding magnet 117 is adhered to the mounting base, thereby improving the installation strength of the encoding magnet 117. It should be noted that the motor 111 described above has a head and a tail end arranged opposite to each other, with the end where the output shaft 114 is disposed being the head end and the other end being the tail end.

[0056] Another embodiment of this utility model also provides a limb rehabilitation training device, such as... Figures 1 to 6 As shown, the device includes the power module 1 described in any of the above embodiments. The limb rehabilitation training device also includes a limb module and a main frame 2. The power module 1 is detachably installed inside the main frame 2 via its two bearing seats 113; the limb module includes a left limb component that cooperates with the user's left limb and a right limb component that cooperates with the user's right limb; the left limb can be either the left upper limb or the left lower limb, and similarly, the right limb can be either the right upper limb or the right lower limb; both the left limb component and the right limb component are rotatably mounted on the main frame 2, and the left limb component is drivenly connected to the first output unit 1141, and the right limb component is drivenly connected to the second output unit 1142, and the motor 111 drives the left limb component and the right limb component to rotate.

[0057] In this embodiment, the limb rehabilitation training device uses the aforementioned power module 1, which facilitates production and assembly, reduces manufacturing costs, and has a low failure rate.

[0058] In the preferred embodiment of this example, such as Figure 3 and Figure 4As shown, both the power module 1 and the limb module are configured in pairs; the two power modules 1 are the upper limb power module 11 and the lower limb power module 12; the two limb modules are the upper limb module 31 and the lower limb module 32; the upper limb module 31 corresponds to the user's upper limb, and the lower limb module 32 corresponds to the user's lower limb. Specifically, the upper limb module 31 includes a left upper limb component 311 and a right upper limb component 312, and the lower limb module 32 includes a left lower limb component 321 and a right lower limb component 322; the left upper limb component 311 is connected to the first output of the motor 111 of the upper limb power module 11. The upper limb component 312 is connected to the second output 1142 of the motor 111 of the upper limb power module 11 via a transmission connection. The motor 111 of the upper limb power module 11 drives the left upper limb component 311 and the right upper limb component 312 to rotate. The lower limb component 321 is connected to the first output 1141 of the motor 111 of the lower limb power module 12 via a transmission connection. The right lower limb component 322 is connected to the second output 1142 of the motor 111 of the lower limb power module 12 via a transmission connection. The motor 111 of the lower limb power module 12 drives the left lower limb component 321 and the right lower limb component 322 to rotate.

[0059] The limb rehabilitation training equipment provided in this embodiment, such as Figure 4 As shown, the main frame 2 includes an upper frame 21, a lower frame 22, and a lifting column 23. The upper frame 21 is located above the lower frame 22. The upper limb power module 11 and the upper limb module 31 are both located on the upper frame 21. The lower limb power module 12 and the lower limb module 32 are both located on the lower frame 22. The upper frame 21 and the lower frame 22 are connected by the lifting column 23. The lifting column 23 adopts a screw mechanism. The lower end of the lifting mechanism is fixedly connected to the lower frame 22, and the upper end of the lifting mechanism is connected to the upper frame 21. The lifting mechanism is used to drive the upper frame 21 to move closer to or further away from the lower frame 22, thereby adjusting the position of the upper frame 21 and improving the applicability of the limb rehabilitation training equipment.

[0060] The limb rehabilitation training device provided in this embodiment has the same structure for the left upper limb component 311 and the right upper limb component 312. Taking the left upper limb component 311 as an example, Figure 3 and Figure 5 As shown, the left upper limb component 311 includes an upper limb crank 3112 and a handle 3111 for the user to grip; the handle 3111 is rotatably connected to one end of the upper limb crank 3112, and the other end of the upper limb crank 3112 is drively connected to the first output part 1141 of the motor 111 of the upper limb power module 11. The left lower limb component 321 and the right lower limb component 322 have the same structure. Taking the left lower limb component 321 as an example, as... Figure 3 and Figure 6As shown, the left lower limb component 321 includes a pedal frame 3211, a pedal liner 3212, a leg support crank 3213, a leg support 3214, and a lower limb crank 3215. The pedal liner 3212 is bonded to the inside of the pedal frame 3211. The leg support crank 3213 is fixedly connected to the pedal frame 3211. The leg support 3214 is mounted on the leg support crank 3213. The pedal frame 3211 is rotatably connected to one end of the lower limb crank 3215. The other end of the lower limb crank 3215 is connected to the first output part 1141 of the motor 111 of the lower limb power module 12.

[0061] In this embodiment, the limb rehabilitation training device also includes an interactive component 4 fixedly mounted on the upper frame 21. The interactive component 4 can be a touch screen. The interactive component 4 is used to interact with the user. The upper limb power module 11 and the lower limb power module 12 are both electrically connected to the interactive component 4. The user can send commands to the upper limb power module 11 and the lower limb power module 12 through the interactive component 4.

[0062] Furthermore, in this embodiment, the interactive component 4 can also send instructions to the lifting mechanism to control the lifting mechanism to move the upper frame 21 toward or away from the lower frame 22.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power module for use in limb rehabilitation training equipment; characterized in that, The power module includes: a motor, a bearing, and a bearing housing; The motor is a worm gear reducer motor; the motor has an output shaft, and the output shaft has a first output part and a second output part that are opposite to each other; There are two bearings and two bearing seats; the first output part and the second output part are each equipped with the bearings, and the first output part and the second output part are respectively connected to the two bearing seats through the bearings thereon; the two bearing seats can be detachably connected to the main frame of the limb rehabilitation training equipment.

2. The power module according to claim 1, characterized in that, The power module further includes a first detection component; the first detection component includes a magnet and a Hall sensor; The magnet is fixedly mounted on the first output section, and the Hall sensor is fixedly mounted on the bearing seat located on the first output section; And / or, the magnet is fixedly mounted on the second output section, and the Hall sensor is fixedly mounted on the bearing seat located on the second output section.

3. The power module according to claim 2, characterized in that, When the magnet is fixedly disposed on the first output part, the first output part is provided with a countersunk hole, and the magnet is fixedly disposed in the countersunk hole; When the magnet is fixedly mounted on the second output section, the second output section is provided with a countersunk hole, and the magnet is fixedly mounted in the countersunk hole.

4. The power module according to claim 1, characterized in that, The power module also includes a second detection component; the second detection component includes an encoding magnet and an encoder; The motor also has a rotor shaft, the encoding magnet is fixedly mounted on the rotor shaft, and the encoder is fixedly mounted on the motor.

5. The power module according to claim 4, characterized in that, The encoding magnet is fixedly mounted on the tail of the rotor shaft; the tail of the motor is provided with several isolation columns, and the encoder is fixedly mounted on the isolation columns.

6. The power module according to claim 5, characterized in that, A mounting base is fixedly provided at the tail end of the rotor shaft, and the encoding magnet is adhered to the mounting base.

7. A limb rehabilitation training device, characterized in that, Includes a limb module, a main frame, and a power module as described in any one of claims 1 to 6; The power module is detachably mounted inside the main frame via the bearing housing; The limb module includes a left limb component and a right limb component; Both the left limb component and the right limb component are rotatably connected to the main frame, and the left limb component is driven to the first output unit, while the right limb component is driven to the second output unit. The power module drives the left limb component and the right limb component to rotate.

8. The limb rehabilitation training device according to claim 7, characterized in that, Both the power module and the limb module are configured in two units; The two power modules are the upper limb power module and the lower limb power module, respectively; The two limb modules are the upper limb module corresponding to the upper limb power module and the lower limb module corresponding to the lower limb power module.

9. The limb rehabilitation training device according to claim 8, characterized in that, The main frame includes an upper frame, a lower frame, and lifting columns; The upper frame is located above the lower frame, the upper limb power module and the upper limb module are both located on the upper frame, and the lower limb power module and the lower limb module are both located on the lower frame; One end of the lifting column is fixedly mounted on the lower frame and the other end is fixedly mounted on the upper frame. The lifting column drives the upper frame to move closer to or further away from the lower frame.

10. The limb rehabilitation training device according to claim 9, characterized in that, The limb rehabilitation training equipment also includes an interactive component fixedly mounted on the upper frame; The interactive component is used to interact with the user. Both the upper limb power module and the lower limb power module are electrically connected to the interactive component. The user can send commands to the upper limb power module and the lower limb power module through the interactive component.