Neurorehabilitation department arm exerciser

Abstract

The application discloses a hand arm exerciser for a neurology rehabilitation department and relates to the technical field of neurology rehabilitation.The auxiliary limiting assembly is arranged, when the patient's arm cannot support recovery, the force of the handle rod drives the rotating sleeve to rotate around the extension rod, and the rotating sleeve is squeezed into the placement space formed by the matching base, the elastic push piece and the like, the elastic push piece cooperates with the guide wheel to realize emergency limiting, the patient's arm is prevented from losing control and being injured due to lack of strength, and the safety of rehabilitation exercise is improved; the first execution assembly, the gear shaft, the second execution assembly and the first spring in the exerciser assembly are linked and matched, the first rack arm is engaged with the gear shaft, the gear shaft is engaged with the second rack arm, the guiding effect of the reference stroke groove makes the stress of spring deformation more uniform, abrupt changes and deviation distortion of resistance are avoided, smooth force feedback is provided for the patient, and the standardization of rehabilitation exercise is ensured.

Description

Technical Field

[0001] This invention relates to the field of neurorehabilitation technology, specifically to an arm exerciser for neurorehabilitation departments. Background Technology

[0002] Arm exercises for neurological rehabilitation (such as stroke, traumatic brain injury, spinal cord injury, peripheral nerve injury, etc.) have the following core requirements: progressive resistance, multi-joint linkage, safe positioning, and assisted force exertion. Referring to the patent application CN222056273U, an arm exerciser for neurorehabilitation uses a mechanism that can be fixed at the foot of the bed, making it convenient for patients to use and improving its practicality. It includes an arm exercise platform, slide rails, rollers, wheel boxes, a movable frame, a handle, an internally threaded frame, a clamping screw, a clamping lever, a movable clamping plate, and a fixed clamping plate. The arm exercise platform has a set of slide rails connected to its left and right sides respectively. The lower left and right ends of the movable frame are connected to the inner ends of a set of wheel boxes respectively. Each set of wheel boxes has a set of rollers rotatably mounted inside. The two sets of rollers are respectively mounted on the slide rails on the same side. The upper left and right ends of the movable frame are connected to the inner ends of a set of handles respectively. The front end of the clamping screw is connected to the middle of the rear end of the clamping lever. The rear end of the clamping screw is rotatably connected to the middle of the front end of the movable clamping plate. The middle front side of the bottom of the arm exercise platform is connected to the top of the fixed clamping plate. A spring mechanism is provided on the front inner side of the arm exercise platform. The patent has the following problems in its specific application in this field: This patent cannot provide emergency safety restraint protection during arm exercises, which may lead to a lack of safety protection for patients during rehabilitation and make it impossible to provide convenient emergency protection when patients are weak. This patent uses resistance springs directly as force-guiding components, resulting in extremely unstable exercise resistance: on the one hand, the elastic resistance of the springs changes linearly with the degree of compression / tension deformation, and patients will feel an abrupt feeling of "low resistance at the beginning of the force exertion and a sudden increase in resistance later" when pushing and pulling the mobile frame, and cannot obtain stable force feedback; on the other hand, multiple sets of resistance springs are simply fixed in the mounting frame by mounting blocks, lacking force transmission constraint structures such as guide rods, and the springs are prone to displacement and twisting during deformation, resulting in uneven resistance on the left and right sides, which not only affects the standardization of rehabilitation exercises, but may also increase the burden on the nerve function of the patient's arm due to force imbalance. This patent has a relatively simple function during exercise, making it inconvenient to perform auxiliary massage in a coordinated manner, resulting in a relatively limited rehabilitation effect. Therefore, a new solution is needed to address the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide an arm exerciser for neurorehabilitation departments to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an arm exerciser for neurorehabilitation, comprising a support base, a seat cushion, an exerciser assembly, an auxiliary limiting assembly, and a linkage massage auxiliary assembly. The seat cushion is fixedly connected to the inner side of the support base, and the exerciser assembly is fixedly connected to the top of both sides of the support base. An auxiliary limiting assembly is provided at one end of the exerciser assembly. The exerciser assembly includes a housing, a stroke groove, a first actuator, a gear shaft, a second actuator, a first spring, and a handle assembly. Guide grooves are provided on both sides of the housing, and a stroke groove is provided at the bottom of the housing. The first actuator and the second actuator are slidably connected to the inner side of the stroke groove. A first spring is provided at one end of the first actuator, and the end of the first spring away from the first actuator is connected to the second actuator. A gear shaft is provided between the first actuator and the second actuator, and the gear shaft is used to transmit the stroke of the first actuator to the second actuator. A handle assembly is provided at one end of the first actuator. The auxiliary limiting component has a placement space, and the handle of the handle component is squeezed into the placement space to form an emergency limit when the patient's arm can no longer support the retraction. The outer casing has guide grooves on both sides, and the gear shaft has linkage massage auxiliary components at both ends. The linkage massage auxiliary components are used to generate a massage application to the patient's arm during the operation of the exerciser components.

[0005] Furthermore, the auxiliary limiting component includes an extension arm, a mounting base, elastic levers, a mounting positioner, and a guide wheel. One end of the exerciser component is fixedly connected to an extension arm, the top end of the extension arm is fixedly connected to multiple mounting bases, elastic levers are provided on both sides of the mounting bases, the top end of the elastic levers is fixedly connected to a mounting positioner, and a guide wheel is rotatably connected to the inner side of the mounting positioner. A placement space is formed between the mounting base, the elastic levers, the mounting positioner, and the guide wheel.

[0006] Furthermore, the handle assembly includes an extension rod, a rotating sleeve, and a grip rod. One end of the first actuation component is fixedly connected to the extension rod, the outer side of the extension rod is rotatably connected to the rotating sleeve, and the top end of the rotating sleeve is fixedly connected to the grip rod. When the patient's arm cannot support the retraction, the grip rod is forced to rotate the rotating sleeve around the extension rod and squeeze into the placement space.

[0007] Furthermore, the first actuating component includes a first rack arm, a first mounting plate, and an inner groove arm. The first rack arm is slidably connected to the inner side of the stroke groove. One end of the first rack arm is fixedly connected to the first mounting plate. The top end of the first mounting plate is fixedly connected to the inner groove arm. One end of the extension rod is fixedly connected to the first mounting plate. The inner groove arm is slidably connected to the top end of the inner side of the outer casing.

[0008] Furthermore, the gear shaft includes a second rack arm, an extension rod, and a displacement slider. The second rack arm is slidably connected to the inner side of the inner groove arm. An extension rod is fixedly connected to one end of the second rack arm away from the first mounting plate. A displacement slider is fixedly connected to the bottom end of the extension rod. The displacement slider is slidably connected to the inner side of the stroke groove.

[0009] Furthermore, the first rack arm is meshed with the gear shaft, the top end of the gear shaft is meshed with the second rack arm, and the first rack arm is connected to the extension rod by a first spring.

[0010] Furthermore, the linkage massage auxiliary component includes an eccentric rotating wheel, a third connecting rod, a second pressing block, a linkage pull rod, an extension frame, a second mounting plate, and an execution application component. Eccentric rotating wheels are fixedly connected to both sides of the gear shaft. A third connecting rod is rotatably connected to one side of each eccentric rotating wheel. A second pressing block is slidably connected to the inner side of the guide groove. The bottom end of the second pressing block is rotatably connected to the top end of the third connecting rod. A linkage pull rod is fixedly connected to the top end of the second pressing block. An extension frame is fixedly connected to both sides of the outer shell. One end of the linkage pull rod is slidably connected to the inner wall of the extension frame. Multiple second mounting plates are evenly distributed on both sides of the top end of the outer shell. Multiple execution application components are positioned at the locations of the second mounting plates on the extension frame and the linkage pull rod.

[0011] Furthermore, the execution application component includes a first extrusion block, an auxiliary block, a first connecting rod, a second connecting rod, an extrusion plate, a massage ball head rod, and a second spring. The massage ball head rod is slidably connected to the inner side of the second mounting plate. The extrusion plate is fixedly connected to one side of the massage ball head rod. A second spring is provided between the extrusion plate and the second mounting plate. A rotating shaft seat is rotatably connected to the side of the extrusion plate away from the massage ball head rod. The first connecting rod and the second connecting rod are rotatably connected to the outer side of the rotating shaft seat. The first extrusion block is fixedly connected to one side of the linkage rod. The auxiliary block is fixedly connected to the side of the extension frame near the linkage rod. The auxiliary block is rotatably connected to the side of the first connecting rod away from the extrusion plate. The auxiliary block is rotatably connected to the side of the second connecting rod away from the extrusion plate.

[0012] Furthermore, the material of the elastic paddle includes at least spring steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting an auxiliary limiting component, when the patient's arm can no longer support the retraction, the grip bar is forced to rotate the sleeve around the extension rod, squeezing into the placement space formed by the mounting base, elastic paddle, etc. The elastic paddle, together with the guide wheel, achieves emergency limiting, avoiding injury to the patient's arm due to weakness, and improving the safety of rehabilitation exercises; 2. The present invention utilizes the linkage between the first execution component, gear shaft, second execution component and first spring in the exerciser assembly, with the first rack arm meshing with the gear shaft and the gear shaft meshing with the second rack arm. With the guiding effect of the reference stroke groove, the spring deformation force is more uniform, avoiding abrupt changes in resistance and offset distortion, providing patients with stable force feedback and ensuring the standardization of rehabilitation exercises. 3. This invention uses the linkage between the massage auxiliary component and the gear shaft. The gear shaft drives the eccentric rotating wheel to rotate, and the power is transmitted through the third link and the linkage rod to drive the massage ball head rod to massage the patient's arm, so as to realize the simultaneous exercise and massage, enriching the functions and improving the rehabilitation effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a specific schematic diagram of the present invention; Figure 3 This is a schematic diagram of the auxiliary limiting component structure of the present invention; Figure 4 This is a partial structural schematic diagram of the exerciser assembly of the present invention; Figure 5 This is a partial schematic diagram of the engagement of the handle assembly and the exerciser assembly of the present invention; Figure 6 This is a partial structural diagram of the first execution component of the present invention; Figure 7 This is a schematic diagram of the structure of the second execution component of the present invention; Figure 8 This is a partial structural schematic diagram of the linkage massage auxiliary component of the present invention; Figure 9 This is a bottom view of the linkage massage auxiliary component of the present invention.

[0016] In the diagram: 1. Support base; 2. Seat cushion; 3. Exercise device assembly; 4. Auxiliary limiting assembly; 5. Linkage massage auxiliary assembly; 6. Guide groove; 7. Extension arm; 8. Mounting base; 9. Elastic paddle; 10. Mounting positioning frame; 11. Guide wheel; 12. Outer shell; 13. Stroke groove; 14. First actuator assembly; 15. Gear shaft; 16. Second actuator assembly; 17. First spring; 18. Extension rod; 19. Rotating sleeve; 20. Handle bar ; 21. First rack arm; 22. First mounting plate; 23. Inner groove arm; 24. Second rack arm; 25. Extension rod; 26. Displacement slider; 27. Second mounting plate; 28. Extension frame; 29. ​​Linkage rod; 30. First extrusion block; 31. Auxiliary block; 32. First connecting rod; 33. Second connecting rod; 34. Extrusion plate; 35. Massage ball head rod; 36. Second spring; 37. Eccentric rotating wheel; 38. Third connecting rod; 39. Second extrusion block. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1:

[0018] This embodiment discloses the assembly and force transmission implementation of the exerciser component 3; refer to Figure 1 The support base 1 is horizontally fixed, and the seat cushion 2 is installed on its inner side; the outer shell 12 of the exerciser assembly 3 is fixed at the top of both sides of the support base 1, the bottom of the outer shell 12 is provided with a stroke groove 13, and the sides are provided with guide grooves 6.

[0019] refer to Figure 4 and Figure 7 The first rack arm 21 of the first actuating assembly 14 is slid into the stroke groove 13. A first mounting plate 22 is fixed to one end of the first rack arm 21. An inner groove arm 23 is fixed to the top of the first mounting plate 22 and slides into the top of the inner side of the outer casing 12. The second rack arm 24 of the second actuating assembly 16 is slid into the inner groove arm 23. An extension rod 25 is fixed to one end of the second rack arm 24. A displacement slider 26 is fixed to the bottom of the extension rod 25 and slides into the stroke groove 13. A gear shaft 15 is installed between the first actuating assembly 14 and the second actuating assembly 16, so that the first rack arm 21 meshes with the gear shaft 15, and the top of the gear shaft 15 meshes with the second rack arm 24. The two ends of the first spring 17 are connected to the first rack arm 21 and the extension rod 25, respectively. (Reference) Figure 5 One end of the extension rod 18 of the handle assembly is fixed to the first mounting plate 22.

[0020] When the patient grips the handle 20 and pushes or pulls it, the extension rod 18 and the first mounting plate 22 move, driving the first rack arm 21 to slide along the stroke groove 13. The first rack arm 21 transmits power to the second rack arm 24 through the meshing gear shaft 15, causing the second actuator 16 to slide synchronously, and the first spring 17 to be stretched or compressed. The stability of the gear meshing transmission and the guiding effect of the stroke groove 13 ensure that the first spring 17 deforms evenly, avoiding abrupt changes in resistance, providing smooth and progressive resistance feedback, and ensuring the standardization of multi-joint linkage exercises. Example 2:

[0021] This embodiment discloses the adaptation and emergency protection implementation of the auxiliary limiting component 4; refer to Figure 1 and Figure 3 An extension arm 7 is fixed to one end of the outer shell 12 of the exerciser assembly 3, and multiple mounting bases 8 are evenly installed on the top of the extension arm 7. Spring steel elastic levers 9 are installed on both sides of the mounting base 8, and the mounting positioning frame 10 is fixed to the top of the elastic levers 9. The guide wheel 11 is rotatably connected to the inside of the mounting positioning frame 10 to form a placement space.

[0022] refer to Figure 5 One end of the extension rod 18 is fixed to the first mounting plate 22, the rotating sleeve 19 is sleeved on the outside of the extension rod 18, and the handle rod 20 is fixed to the top of the rotating sleeve 19, so as to ensure that the handle rod 20 can drive the rotating sleeve 19 to rotate freely around the extension rod 18.

[0023] When the patient's arm is too weak to support the retraction, the grip lever 20, under the force of the arm's weight or inertia, causes the rotating sleeve 19 to rotate around the extension rod 18, gradually squeezing in. Figure 3 The central mounting base 8, elastic lever 9, mounting positioning bracket 10, and guide wheel 11 form a placement space. The elastic lever 9 generates clamping force due to the elastic properties of the spring steel material, and the guide wheel 11 reduces rotational friction, preventing the handle 20 from losing control and impacting, thus achieving emergency protection. Example 3:

[0024] This embodiment discloses the linkage and massage implementation of the linkage massage auxiliary component 5; refer to Figures 1-9 An eccentric rotating wheel 37 is fixed on both sides of the gear shaft 15. One end of the third connecting rod 38 is rotatably connected to the eccentric rotating wheel 37, and the other end is rotatably connected to the bottom end of the second extrusion block 39 in the guide groove 6. The top end of the linkage rod 29 is fixed to the second extrusion block 39, and the bottom end is slidably engaged with the inner wall of the extension frame 28 on both sides of the outer casing 12. (Reference) Figure 8Multiple second mounting plates 27 are evenly distributed on both sides of the top of the outer casing 12. Massage ball head rods 35 slide into the inner side of the second mounting plates 27. A pressing plate 34 is fixed to one end of the massage ball head rod 35. A second spring 36 is disposed between the pressing plate 34 and the second mounting plates 27. A rotating shaft seat on one side of the pressing plate 34 is rotatably connected to the first connecting rod 32 and the second connecting rod 33, respectively. The other end of the first connecting rod 32 is rotatably connected to the auxiliary block 31 on the extension frame 28, and the other end of the second connecting rod 33 is rotatably connected to the first pressing block 30 on the linkage rod 29. (Reference) Figure 6 The auxiliary diagram illustrates the local coordination relationships of the linkage transmission.

[0025] When the exerciser assembly 3 is running, the gear shaft 15 rotates, causing the eccentric rotating wheels 37 on both sides to rotate synchronously. This, through the third connecting rod 38, pulls the second squeezing block 39 to slide up and down along the guide groove 6, thereby driving the linkage rod 29 to slide along the extension frame 28. When the linkage rod 29 moves, the first squeezing block 30 pushes the second connecting rod 33. Referring to the fulcrum effect of the first connecting rod 32 and the auxiliary block 31, the squeezing plate 34 drives the massage ball head rod 35 to reciprocate and extend. The second spring 36 provides a restoring force, allowing the massage ball head rod 35 to continuously provide a gentle massage to the patient's arm, promoting blood circulation. Example 4:

[0026] This embodiment discloses the comprehensive application implementation of the overall equipment. Assemble the components in Examples 1, 2, and 3 according to their positional relationships to ensure that the support base 1, seat cushion 2, exerciser component 3, auxiliary limiting component 4, and linkage massage auxiliary component 5 are firmly connected, and that the sliding parts slide smoothly and the meshing parts mesh precisely.

[0027] The patient sits on the cushion 2, adjusts their posture so that both hands naturally hold the handle bar 20, and places their arms on the top of the outer shell 12, ensuring that the massage ball head bar 35 is aligned with the massage area on their arm.

[0028] The patient starts the exercise by pushing and pulling the handle bar 20. The exerciser component 3 achieves stable resistance and multi-joint linkage exercise. The gear shaft 15 drives the linkage massage auxiliary component 5 to operate, and the massage ball head bar 35 performs linkage massage. If the patient's arm is weak, the auxiliary limit component 4 immediately activates the emergency limit, realizing integrated rehabilitation application.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An arm exerciser for neurorehabilitation, characterized in that: It includes a support base (1), a seat cushion (2), an exerciser assembly (3), an auxiliary limiting assembly (4), and a linkage massage auxiliary assembly (5). The seat cushion (2) is fixedly connected to the inner side of the support base (1), and the exerciser assembly (3) is fixedly connected to the top of both sides of the support base (1). The auxiliary limiting assembly (4) is provided at one end of the exerciser assembly (3). The exerciser assembly (3) includes a housing (12), a stroke groove (13), a first execution component (14), a gear shaft (15), a second execution component (16), a first spring (17), and a handle assembly. Guide grooves (6) are provided on both sides of the housing (12), and the stroke groove (13) is provided at the bottom of the housing (12). The first execution component (14) and the second execution component (16) are slidably connected to the inner side of the stroke groove (13). The first spring (17) is provided at one end of the first execution component (14), and the end of the first spring (17) away from the first execution component (14) is connected to the second execution component (16). The gear shaft (15) is provided between the first execution component (14) and the second execution component (16). The gear shaft (15) is used to transmit the stroke of the first execution component (14) to the second execution component (16). The handle assembly is provided at one end of the first execution component (14). The auxiliary limiting component (4) has a placement space, and the handle rod (20) of the handle component is squeezed into the placement space to form an emergency limit when the patient's arm cannot support the retraction. The outer shell (12) has guide grooves (6) on both sides, and the gear shaft (15) has linkage massage auxiliary components (5) at both ends. The linkage massage auxiliary components (5) are used to link and form a massage application on the patient's arm during the operation of the exerciser component (3).

2. The arm exerciser for neurorehabilitation according to claim 1, characterized in that: The auxiliary limiting component (4) includes an extension arm (7), a mounting base (8), an elastic lever (9), a mounting positioning frame (10), and a guide wheel (11). One end of the exerciser component (3) is fixedly connected to the extension arm (7). Multiple mounting bases (8) are fixedly connected to the top of the extension arm (7). Elastic levers (9) are provided on both sides of the mounting base (8). The top of the elastic levers (9) is fixedly connected to the mounting positioning frame (10). The inner side of the mounting positioning frame (10) is rotatably connected to the guide wheel (11). A placement space is formed between the mounting base (8), the elastic lever (9), the mounting positioning frame (10), and the guide wheel (11).

3. The arm exerciser for neurorehabilitation according to claim 2, characterized in that: The handle assembly includes an extension rod (18), a rotating sleeve (19), and a grip rod (20). One end of the first actuation component (14) is fixedly connected to the extension rod (18). The rotating sleeve (19) is rotatably connected to the outer side of the extension rod (18). The top end of the rotating sleeve (19) is fixedly connected to the grip rod (20). When the patient's arm cannot support the retraction, the grip rod (20) is forced to rotate the rotating sleeve (19) around the extension rod (18) and squeeze into the placement space.

4. The arm exerciser for neurorehabilitation according to claim 3, characterized in that: The first execution component (14) includes a first rack arm (21), a first mounting plate (22), and an inner groove arm (23). The first rack arm (21) is slidably connected to the inner side of the stroke groove (13). One end of the first rack arm (21) is fixedly connected to the first mounting plate (22). The top end of the first mounting plate (22) is fixedly connected to the inner groove arm (23). One end of the extension rod (18) is fixedly connected to the first mounting plate (22). The inner groove arm (23) is slidably connected to the top end of the inner side of the outer shell (12).

5. The arm exerciser for neurorehabilitation according to claim 4, characterized in that: The gear shaft (15) includes a second rack arm (24), an extension rod (25), and a displacement slider (26). The second rack arm (24) is slidably connected to the inner side of the inner groove arm (23). The extension rod (25) is fixedly connected to one end of the second rack arm (24) away from the first mounting plate (22). The displacement slider (26) is fixedly connected to the bottom end of the extension rod (25). The displacement slider (26) is slidably connected to the inner side of the stroke groove (13).

6. The arm exerciser for neurorehabilitation according to claim 5, characterized in that: The first rack arm (21) is meshed with the gear shaft (15), the top end of the gear shaft (15) is meshed with the second rack arm (24), and the first rack arm (21) is connected to the extension rod (25) by a first spring (17).

7. The arm exerciser for neurorehabilitation according to claim 1, characterized in that: The linkage massage auxiliary component (5) includes an eccentric rotating wheel (37), a third connecting rod (38), a second pressing block (39), a linkage pull rod (29), an extension frame (28), a second mounting plate (27), and an execution application component. Eccentric rotating wheels (37) are fixedly connected to both sides of the gear shaft (15). A third connecting rod (38) is rotatably connected to one side of the eccentric rotating wheel (37). A second pressing block (39) is slidably connected to the inner side of the guide groove (6). The bottom end of the second pressing block (39)... The top end of the third link (38) is rotatably connected, and the top end of the second extrusion block (39) is fixedly connected to the linkage rod (29). The two sides of the outer shell (12) are fixedly connected to the extension frame (28). One end of the linkage rod (29) is slidably connected to the inner wall of the extension frame (28). Multiple second mounting plates (27) are evenly distributed on both sides of the top end of the outer shell (12). Multiple execution application components are set at the positions of the extension frame (28) and the linkage rod (29) relative to the second mounting plates (27).

8. The arm exerciser for neurorehabilitation according to claim 7, characterized in that: The application execution component includes a first pressing block (30), an auxiliary block (31), a first connecting rod (32), a second connecting rod (33), a pressing plate (34), a massage ball head rod (35), and a second spring (36). The massage ball head rod (35) is slidably connected to the inner side of the second mounting plate (27). The pressing plate (34) is fixedly connected to one side of the massage ball head rod (35). The second spring (36) is provided between the pressing plate (34) and the second mounting plate (27). The pressing plate (34) is away from the massage ball head rod (35). 5) is rotatably connected to a pivot seat on one side. The outer side of the pivot seat is rotatably connected to a first connecting rod (32) and a second connecting rod (33). The first extrusion block (30) is fixedly connected to one side of the linkage rod (29). The auxiliary block (31) is fixedly connected to the side of the extension frame (28) near the linkage rod (29). The side of the first connecting rod (32) away from the extrusion plate (34) is rotatably connected to the auxiliary block (31). The side of the second connecting rod (33) away from the extrusion plate (34) is rotatably connected to the first extrusion block (30).

9. The arm exerciser for neurorehabilitation according to claim 2, characterized in that: The material of the elastic paddle (9) includes at least spring steel.

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