A grip adjuster for finger joint flexion and extension rehabilitation

Abstract

The utility model relates to hand strength adjuster technical field, especially hand strength adjuster for finger joint flexion and extension rehabilitation. Hand strength adjuster includes transmission block, rotating block, fixed link, grip lever and press bar, and one end of rotating block is hinged with transmission block, and third spring is connected between rotating block and transmission block, and press bar is installed at the bottom of transmission block, and fixed link is installed at the bottom of rotating block, and grip lever is installed on fixed link, and support plate is installed in fixed link, and guide rod is installed on support plate, and driving plate is slidably installed on guide rod, and first rabbet is installed on driving plate, and first spring is installed between driving plate and support plate on guide rod, and rotating rod is rotatably installed on driving plate, and limit rod is rotatably installed on the end of rotating rod, and third slot is arranged on grip lever and engages with limit rod. By driving first rabbet, driving plate moves longitudinally, and then rotating rod rotates, and then limit rod moves away from third slot, at this moment, grip lever can be disassembled, and the quick replacement of grip lever is realized.

Description

Technical Field

[0001] This utility model relates to the field of grip strength adjustment technology, and more specifically, to a grip strength adjustment device for finger joint flexion and extension rehabilitation. Background Technology

[0002] This section introduces grip strength adjusters for finger joint flexion and extension rehabilitation. These devices are designed to assist in finger joint rehabilitation training and typically feature adjustable resistance. They allow for flexible adjustments to the intensity of grip strength training based on the patient's rehabilitation stage and actual ability. Regular use of grip strength adjusters for grip-release exercises can effectively strengthen the flexor and extensor muscles of the fingers, enhance the range of motion and strength of the finger joints, promote the recovery of finger joint function, and help patients better return to normal life.

[0003] Grip strength modulators for finger joint flexion and extension rehabilitation are primarily based on mechanical principles and ergonomic design. They provide resistance through internal springs, hydraulic pressure, or pneumatic devices. When patients grip the modulator and perform flexion and extension movements, these devices generate a reaction force, simulating the resistance of grasping movements in daily life. Patients can adjust the resistance level according to their own rehabilitation progress. By continuously resisting the resistance, they exercise their finger muscles, thereby enhancing the flexion and extension abilities of their finger joints and promoting rehabilitation.

[0004] In existing technologies, some grip strength adjusters have fixed grip bars, and the shape of their finger slots is only suitable for the hands of some people. For people whose hands are not well-fitted, this can lead to uneven force distribution on the hands, making it difficult to provide balanced exercise for the joints and muscles of the fingers. This reduces the targetedness and effectiveness of the training, lowers the rehabilitation training effect, and delays the rehabilitation process. Utility Model Content

[0005] In view of the above-mentioned technical problem of uneven hand force caused by the mismatch of the shape of the finger groove of the physical regulator in the prior art, a grip strength regulator for finger joint flexion and extension rehabilitation is provided.

[0006] The technical means adopted in this utility model are as follows:

[0007] A grip strength adjuster for finger joint flexion and extension rehabilitation includes a transmission block, a rotating block, a fixed rod, a grip rod, and a pressure rod. The rotating block is hinged to one end of the transmission block, and a third spring connects the rotating block and the transmission block. The pressure rod is installed at the bottom of the transmission block, the fixed rod is installed at the bottom of the rotating block, and the grip rod is installed on the fixed rod. The fixed rod has a first groove and a second groove, which communicate with each other. A support plate is installed in the first groove, and a guide rod is installed on the support plate along the direction of the first groove. A drive plate is slidably installed on the guide rod, and a first paddle is installed on the side of the drive plate facing the second groove. A first spring is installed on the guide rod between the drive plate and the support plate. A rotating rod is rotatably installed on the drive plate, and a limiting rod is rotatably installed at the end of the rotating rod. The grip rod has a third groove that engages with the limiting rod.

[0008] Furthermore, a semi-circular frustum is installed at the bottom of the transmission block, and a rotating shaft is installed at the center of the semi-circular frustum. The pressure rod is rotatably mounted on the rotating shaft. The pressure rod is provided with a semi-circular groove that matches the semi-circular frustum. The side of the semi-circular frustum is provided with more than one adjusting groove. The pressure rod is provided with a fourth groove and a fifth groove, which are connected. An adjusting rod is slidably installed in the fourth groove. The end of the adjusting rod facing the semi-circular frustum can engage with the adjusting groove. A fixing ring is installed on the adjusting rod. A second spring is installed on the adjusting rod on one side of the fixing ring. A second paddle is installed on the fixing ring. The second paddle is located in the fifth groove.

[0009] Furthermore, a slide rail is installed in the first groove, and a limiting rod is installed on the slider of the slide rail.

[0010] Furthermore, the cross-section of the limiting rod is right-angled.

[0011] Furthermore, a sixth groove adapted to the end of the adjusting rod is provided below the fourth groove.

[0012] Furthermore, the grip bar is provided with finger grooves.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] By moving the first lever, the drive plate moves longitudinally, which in turn causes the rotating rod to rotate, and then the limiting rod moves away from the third slot. At this point, the grip can be removed, allowing for quick replacement of the grip. Patients can choose grips of different materials, shapes, and colors according to their hand shape or preferences. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the 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 based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of a grip strength adjuster for finger joint flexion and extension rehabilitation according to this utility model.

[0017] Figure 2 This is a cross-sectional view of the grip lever and fixing rod of a grip strength adjuster for finger joint flexion and extension rehabilitation according to this utility model.

[0018] Figure 3 This utility model relates to a grip strength modulator for finger joint flexion and extension rehabilitation. Figure 2 A magnified view of a portion of point A in the middle.

[0019] Figure 4 This is a broken view of the pressure rod portion of a grip strength adjuster for finger joint flexion and extension rehabilitation according to this utility model.

[0020] In the diagram: 1. Rotating block; 2. Fixed rod; 3. First paddle; 4. Drive plate; 5. Rotating rod; 6. Slider; 7. Slide rail; 8. Limiting rod; 9. Grip rod; 10. Third groove; 11. Support plate; 12. Guide rod; 13. First spring; 14. Transmission block; 15. Semi-circular frustum; 16. Rotating shaft; 17. Pressure rod; 18. Second paddle; 19. Fixed ring; 20. Adjusting rod; 21. Second spring; 22. Sixth groove; 23. Third spring; 24. First groove; 25. Second groove; 26. Finger groove; 27. Semi-circular groove; 28. Adjusting groove; 29. ​​Fourth groove; 30. Fifth groove. Detailed Implementation

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] This utility model discloses a grip strength adjuster for finger joint flexion and extension rehabilitation, such as... Figure 1-3 As shown, the device includes a transmission block 14, a rotating block 1, a fixed rod 2, a gripping rod 9, and a pressure rod 17. The rotating block 1 is hinged to one end of the transmission block 14, and a third spring 23 connects the rotating block 1 and the transmission block 14. The fixed rod 2 is installed at the bottom of the rotating block 1, and the gripping rod 9 is installed on the fixed rod 2. The fixed rod 2 has a first groove 24 and a second groove 25, which communicate with each other. A support plate 11 is installed in the first groove 24, and a guide rod 12 is installed on the support plate 11 along the direction of the first groove 24. A drive plate 4 is slidably mounted on the guide rod 12. A first paddle 3 is mounted on the side of the drive plate 4 facing the second groove 25. A first spring 13 is mounted on the guide rod 12 between the drive plate 4 and the support plate 11. A rotating rod 5 is rotatably mounted on the drive plate 4. A limiting rod 8 is rotatably mounted at the end of the rotating rod 5. A slide rail 7 is installed in the first groove 24. The limiting rod 8 is mounted on the slider 6 of the slide rail 7. The cross section of the limiting rod 8 is right-angled. A third groove 10 is provided on the grip rod 9 to engage with the limiting rod 8. A finger groove 26 is provided on the grip rod 9. When the first lever 3 is turned, the drive plate 4 moves along the guide rod 12, which in turn causes the rotating rod 5 to rotate. The rotating rod 5 pulls the limiting rod 8 to move along the slide rail 7. The limiting rod 8 separates from the third groove 10. At this time, the grip 9 can be removed. The patient can choose a suitable grip 9 according to their own preferences and install it on the fixed rod 2. At this time, the first lever 3 is released. Under the action of the first spring, the limiting rod 8 resets and engages with the third groove 10 of the replacement grip 9, realizing the quick replacement of the grip 9.

[0023] like Figure 4As shown, a semi-circular frustum 15 is installed at the bottom of the transmission block 14, and a rotating shaft 16 is installed at the center of the semi-circular frustum 15. A pressure rod 17 is rotatably installed on the rotating shaft 16. The pressure rod 17 is provided with a semi-circular groove 27 that matches the semi-circular frustum 15. The side of the semi-circular frustum 15 is provided with more than one adjusting groove 28. The pressure rod 17 is provided with a fourth groove 29 and a fifth groove 30, which are connected. An adjusting rod 20 is slidably installed in the fourth groove 29. The end of the adjusting rod 20 facing the semi-circular frustum 15 can engage with the adjusting groove 28. A fixing ring 19 is installed on the adjusting rod 20. A second spring 21 is installed on the adjusting rod 20 on one side of the fixing ring 19. A second paddle 18 is installed on the fixing ring 19. The second paddle 18 is located in the fifth groove 30. A sixth groove 22 that matches the end of the adjusting rod 20 is provided in the fourth groove 29 below the adjusting rod 20. Move the second lever 18 to move the adjusting rod 20 along the fourth groove 29. The lower end of the adjusting rod 20 enters the sixth groove 22, and the upper end of the adjusting rod 20 leaves the adjusting groove 28. At this time, the pressure rod 17 can rotate around the rotating shaft 16. When the pressure rod 17 is adjusted to the appropriate position, release the second lever 18. Under the action of the second spring 21, the second lever 18 returns to its original position, and the upper end of the second lever 18 enters the corresponding adjusting groove 28. At this time, the pressure rod 17 is fixed to the transmission block 14, realizing the adjustment of the distance between the fixed rod 2 and the pressure rod 17, realizing the adjustment of the grip distance of the grip strength adjuster, adapting to the hand size and rehabilitation needs of different patients. From children to adults, from patients with minor injuries to those with severe injuries, a comfortable grip distance can be found, improving the adaptability of use and supporting flexible adjustment at different stages of rehabilitation.

[0024] The transmission block 14, the rotating block 1, and the third spring 23 form a triangle. When in use, the pressure rod 14 is located in the palm of the patient's hand, and the patient's fingers are placed in the finger groove 26. The elastic force of the third spring 23 is used to perform rehabilitation training for finger joint flexion and extension.

[0025] 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 grip strength modulator for finger joint flexion and extension rehabilitation, characterized in that, The device includes a transmission block (14), a rotating block (1), a fixed rod (2), a gripping rod (9), and a pressure rod (17). The rotating block (1) is hinged to one end of the transmission block (14), and a third spring (23) connects the rotating block (1) and the transmission block (14). The pressure rod (17) is installed at the bottom of the transmission block (14), the fixed rod (2) is installed at the bottom of the rotating block (1), and the gripping rod (9) is installed on the fixed rod (2). The fixed rod (2) has a first groove (24) and a second groove (25), which are connected. 24) An internal support plate (11) is installed. A guide rod (12) is installed on the support plate (11) along the direction of the first groove (24). A drive plate (4) is slidably installed on the guide rod (12). A first paddle (3) is installed on the side of the drive plate (4) facing the second groove (25). A first spring (13) is installed on the guide rod (12) between the drive plate (4) and the support plate (11). A rotating rod (5) is rotatably installed on the drive plate (4). A limiting rod (8) is rotatably installed at the end of the rotating rod (5). A third groove (10) is provided on the grip (9) to engage with the limiting rod (8).

2. A grip strength modulator for finger joint flexion and extension rehabilitation according to claim 1, characterized in that, A semi-circular frustum (15) is installed at the bottom of the transmission block (14). A rotating shaft (16) is installed at the center of the semi-circular frustum (15). A pressure rod (17) is rotatably mounted on the rotating shaft (16). The pressure rod (17) is provided with a semi-circular groove (27) that matches the semi-circular frustum (15). The side of the semi-circular frustum (15) is provided with more than one adjusting groove (28). The pressure rod (17) is provided with a fourth groove (29) and a fifth groove (30). The fourth groove (29) The adjustment rod (20) is slidably installed in the fourth groove (29) and the end of the adjustment rod (20) facing the semi-circular platform (15) can engage with the adjustment groove (28). A fixing ring (19) is installed on the adjustment rod (20). A second spring (21) is installed on the adjustment rod (20) on one side of the fixing ring (19). A second paddle (18) is installed on the fixing ring (19). The second paddle (18) is located in the fifth groove (30).

3. A grip strength modulator for finger joint flexion and extension rehabilitation according to claim 1, characterized in that, A slide rail (7) is installed in the first groove (24), and a limiting rod (8) is installed on the slider (6) of the slide rail (7).

4. A grip strength modulator for finger joint flexion and extension rehabilitation according to claim 1, characterized in that, The cross-section of the limiting rod (8) is right-angled.

5. A grip strength modulator for finger joint flexion and extension rehabilitation according to claim 2, characterized in that, The fourth groove (29) is provided with a sixth groove (22) that is adapted to the end of the adjusting rod (20) below the adjusting rod (20).

6. A grip strength modulator for finger joint flexion and extension rehabilitation according to claim 1, characterized in that, The grip (9) is provided with finger grooves (26).

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