Finger bending and stretching exercise device

Abstract

The utility model discloses a finger flexion and extension exercise device which comprises a main body, a notch for fingers to move is formed in the main body, a cross rod is arranged in the notch, and a first finger ring is connected to the cross rod. A mounting cavity is further formed in the main body, and four stretching assemblies are arranged in the mounting cavity; the stretching assembly comprises a second finger ring, a pull rope, a first connecting plate, a first tension spring, a second connecting plate and a first screw rod; the position of the second connecting plate is changed by adjusting the first screw rod, and the tension of the first tension spring can be effectively controlled, so that the resistance encountered in the finger movement process is adjusted, and the rehabilitation requirements of different patients are met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a finger flexion and extension exercise device. Background Art

[0002] Finger training plays a vital role in rehabilitation medicine and daily functional recovery. For patients affected by injuries or certain diseases (such as stroke, arthritis), effective finger training can help restore finger flexibility, strength and coordination. There are various finger training devices on the market, including but not limited to elastic bands, finger strengtheners and electronic simulation systems. These devices help users strengthen the flexibility and strength of finger muscles and joints through repetitive movements by providing a certain amount of resistance or auxiliary force. However, although the existing technology has made certain progress in finger training, there are still shortcomings, especially in personalized training and safety.

[0003] Existing finger training devices cannot adjust the tension of the device according to the patient's recovery status. In rehabilitation training, each patient's recovery progress and ability are different, so different degrees of tension are required to adapt to their respective needs. However, most existing devices either only provide a fixed tension or have a limited adjustment range of tension, which may lead to two extreme situations in actual use: one is that the tension is too large. For patients with a low degree of recovery, excessive tension not only cannot effectively promote finger recovery, but may even cause re-injury to the fingers; the other is that the tension is too small. For patients who already have a certain recovery foundation, too small tension cannot provide sufficient training intensity, thus affecting the recovery effect. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a finger flexion and extension exercise device, aiming to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a finger flexion and extension exercise device, comprising a main body, the main body is provided with a notch for finger movement, a crossbar is arranged in the notch, and a first finger ring is connected to the crossbar; an installation cavity is also arranged in the main body, and four stretching components are arranged in the installation cavity;

[0006] The stretching assembly includes a second finger ring, a first pull rope, a first connecting plate, a first tension spring, a second connecting plate and a first screw rod; two sets of limiting channels are arranged in the installation cavity, and the limiting channels are composed of two parallel plate bodies; the second connecting plate is slidably installed in the limiting channel, the first connecting plate is connected to the second connecting plate through the first tension spring, the second finger ring is located outside the installation cavity, and the second finger ring is fixedly connected to the first connecting plate through the first pull rope, and the first screw rod extends into the installation cavity and is threadedly connected to the second connecting plate

[0007] Preferably, two transmission grooves are symmetrically arranged on the inner side of the notch, the cross bar is slidably installed between the two transmission grooves, and the second screws are rotatably connected in the two transmission grooves, and the second screws pass through the cross bar and are threadedly connected to the cross bar; a driving cavity is arranged inside the main body, and the two second screws extend into the driving cavity, and a driving mechanism is arranged in the driving cavity, and the driving mechanism is connected to the two second screws and is used to drive the two second screws to rotate.

[0008] Preferably, the driving mechanism includes a driving shaft, two active bevel gears, two driven bevel gears and a first rotating wheel; the driving shaft is rotatably installed in the driving cavity, one end of the driving shaft extends out of the driving cavity and is connected to the first rotating wheel, the two active bevel gears are fixedly installed on the driving shaft, the two driven bevel gears are respectively connected to the two second screws, and the two active bevel gears are respectively meshed and connected with the two driven bevel gears.

[0009] Preferably, the cross bar has a hollow structure, and two second tension springs are symmetrically arranged inside the cross bar, and the two second tension springs are connected to the second pull ropes at one end close to each other. Two holes for the second pull ropes to extend out are provided on the side of the cross bar close to the first finger ring, and the inside of the cross bar is rotatably connected to two first guide wheels, and the two second pull ropes pass around the first guide wheels and are fixedly connected to the first finger ring.

[0010] Preferably, a soft cushion is provided on the inner side of the second finger ring.

[0011] Preferably, four groups of second guide wheels are arranged inside the installation cavity, each group includes two second guide wheels, and the two second guide wheels are in contact with the pull rope.

[0012] Preferably, one end of the first screw rod located outside the installation cavity is connected to a second rotating wheel.

[0013] Beneficial Effects

[0014] The utility model provides a finger flexion and extension exercise device. The utility model rotates the first screw rod, and the first screw rod drives the second connecting plate away from or close to the right side wall of the installation cavity. When the second connecting plate is close to the right side wall of the installation cavity, the tension spring is stretched. At this time, when the second finger ring is pulled, a "larger" tension is required. On the contrary, when the second connecting plate is adjusted away from the right side wall of the installation cavity, the tension spring gradually returns to normal. At this time, when the second finger ring is pulled, a "smaller" force is required. Thus, the adjustment of the tension is achieved. By adjusting the first screw rod to change the position of the second connecting plate, the tension of the first tension spring can be effectively controlled, thereby adjusting the resistance encountered during the finger movement to meet the rehabilitation needs of different patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a finger flexion and extension exercise device described in the utility model.

[0016] Figure 2 It is a schematic diagram of a top view and a cross-sectional structure of a finger flexion and extension exercise device described in the utility model.

[0017] Figure 3 It is a structural schematic diagram of a stretching assembly and two plates of a finger flexion and extension exercise device described in the utility model.

[0018] Figure 4 It is a schematic diagram of a top view and a cross-sectional structure of a cross bar and a first finger ring of a finger flexion and extension exercise device described in the utility model.

[0019] Figure 5 It is a structural schematic diagram of a driving mechanism and a second screw rod of a finger flexion and extension exercise device described in the utility model.

[0020] In the figure: 1-main body, 11-notch, 12-installation cavity, 13-transmission groove, 14-drive cavity, 15-plate body, 2-cross bar, 21-second tension spring, 22-second pull rope, 23-first guide wheel, 3-first finger ring, 4-stretching component, 41-second finger ring, 42-first pull rope, 43-first connecting plate, 44-first tension spring, 45-second connecting plate, 46-first screw, 47-cushion, 48-second guide wheel, 49-second rotating wheel, 5-second screw, 6-driving mechanism, 61-driving shaft, 62-driving bevel gear, 63-driven bevel gear, 64-first rotating wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a finger flexion and extension exercise device, comprising a main body 1, the main body 1 is provided with a notch 11 for finger movement, a cross bar 2 is arranged in the notch 11, and a first finger ring 3 is connected to the cross bar 2; the main body 1 is also provided with a mounting cavity 12, and four stretching components 4 are arranged in the mounting cavity 14;

[0023] The stretching assembly 4 includes a second finger ring 41, a first pull rope 42, a first connecting plate 43, a first tension spring 44, a second connecting plate 45 and a first screw 46; two groups of limiting channels are arranged in the installation cavity 12, and the limiting channels are composed of two parallel plate bodies 15; the second connecting plate 45 is slidably installed in the limiting channel, the first connecting plate 43 is connected to the second connecting plate 45 through the first tension spring 44, the second finger ring 41 is located outside the installation cavity 12, and the second finger ring 41 is fixedly connected to the first connecting plate 43 through the first pull rope 42, and the first screw 46 extends into the installation cavity 14 and is threadedly connected to the second connecting plate 45.

[0024] When in use, the patient inserts the thumb into the first finger ring 3, and the other four fingers into the four second finger rings 41, and then the five fingers perform flexion and extension movements. When the four second finger rings 41 are pulled, the second finger rings 41 drive the first connecting plate 43 to move through the first pull rope 42, and the first tension spring 44 is stretched to enhance the flexibility and strength of the finger muscles and joints through repeated movements.

[0025] See also Figure 2, which will be further described below, in a normal state, the second finger ring 41 is stuck outside the installation cavity 12, and the tension spring 44 provides tension to the second finger ring 41 through the first pull rope 42. Since the recovery progress and ability of the patients are different, by rotating the first screw 46, the first screw 46 drives the second connecting plate 45 away from or close to the right side wall of the installation cavity 12. When the second connecting plate 45 is close to the right side wall of the installation cavity 12, the tension spring 42 is stretched. At this time, when the second finger ring 41 is pulled again, a "larger" tension is required. On the contrary, when the second connecting plate 45 is adjusted away from the right side wall of the installation cavity 12, the tension spring 42 gradually returns to normal. At this time, when the second finger ring 41 is pulled, a "smaller" force is required. Thus, the adjustment of the tension is achieved. The limiting channel formed by the two plate bodies 15 has a limiting effect on the movement of the second connecting plate 45.

[0026] The first tension spring 44 provides necessary resistance for the finger. When the first tension spring 33 is stretched, its resistance (i.e., tension) increases; when the first tension spring 44 is relaxed, its resistance decreases.

[0027] The second connecting plate 45 adjusts its position in the installation cavity by the rotation of the first screw 46. When the first screw 46 rotates to move the second connecting plate 45 toward the right side wall of the installation cavity, the first tension spring 44 is further stretched, thereby increasing the tension. On the contrary, when the second connecting plate 45 moves away from the right side wall, the tension spring relaxes, resulting in a decrease in tension.

[0028] The second finger ring 41 is connected to the first tension spring 44 via the first pull rope 42. When the user's finger pulls the second finger ring 41, the pulling action is transmitted to the first tension spring 44 via the first pull rope 42, generating or changing the tension of the first tension spring 44.

[0029] Therefore, the increase or decrease of the pulling force is mainly determined by the position adjustment of the second connecting plate 45 and the change of the tension of the first tension spring 44. By adjusting the first screw 46 to change the position of the second connecting plate 45, the tension of the first tension spring 44 can be effectively controlled, thereby adjusting the resistance encountered during the finger movement to meet the rehabilitation needs of different patients.

[0030] Specifically, two transmission grooves 13 are symmetrically arranged on the inner side of the notch 11, and the cross bar 2 is slidably installed between the two transmission grooves 13. The second screws 5 are rotatably connected in the two transmission grooves 13, and the second screws 5 pass through the cross bar 2 and are threadedly connected with the cross bar 2; a driving cavity 14 is arranged inside the main body 1, and the two second screws 5 extend into the driving cavity 14. A driving mechanism 6 is arranged in the driving cavity 14, and the driving mechanism 6 is connected to the two second screws 5 and is used to drive the two second screws 5 to rotate. The driving mechanism 6 is used to drive the two second screws 5 to rotate synchronously, and the rotation of the second screw 5 drives the cross bar 2 to move, and the cross bar 2 drives the first finger ring 3 to move, and the first finger ring 3 is close to or away from the four second finger rings 41. Since the palm sizes of different patients are different, the position of the first finger ring 3 is adjusted to make the device suitable for different patients.

[0031] Specifically, the driving mechanism 6 includes a driving shaft 61, two active bevel gears 62, two driven bevel gears 63 and a first rotating wheel 64; the driving shaft 61 is rotatably mounted in the driving cavity 14, one end of the driving shaft 61 extends out of the driving cavity 14 and is connected to the first rotating wheel 64, the two active bevel gears 62 are fixedly mounted on the driving shaft 61, the two driven bevel gears 63 are respectively connected to the two second screw rods 5, and the two active bevel gears 62 are respectively meshed and connected to the two driven bevel gears 63. The first rotating wheel 64 is rotated, and the rotation of the first rotating wheel 64 drives the driving shaft 61 to rotate, the rotation of the driving shaft 61 drives the two active bevel gears 62 to rotate, the rotation of the two active bevel gears 62 drives the two driven bevel gears 63 to rotate, and the rotation of the two driven bevel gears 63 drives the two second screw rods 5 to rotate, thereby realizing the driving of the two second screw rods 5. Since the driving of the two second screw rods 5 is driven by the driving shaft 61, the synchronization of the rotation of the two second screw rods 5 can be effectively guaranteed.

[0032] Specifically, the cross bar 2 has a hollow structure, and two second tension springs 21 are symmetrically arranged inside the cross bar 2. The two second tension springs 21 are connected to the second first pull rope 42 at one end close to each other. The cross bar 2 has two holes on the side close to the first finger ring 3 for the second first pull rope 42 to extend out. The cross bar 2 is rotatably connected to two first guide wheels 23, and the two second first pull ropes 42 bypass the first guide wheels 23 and are fixedly connected to the first finger ring 3. When the first finger ring 3 is pulled, the first finger ring 3 drives the second first pull rope 42 to move, the second tension spring 21 is stretched, and the first finger ring 3 is away from the cross bar 2.

[0033] Specifically, a soft pad 47 is provided on the inner side of the second finger ring 41 . The setting of the soft pad 47 makes the contact between the finger and the second finger ring 41 more comfortable.

[0034] Specifically, four groups of second guide wheels 48 are disposed inside the installation cavity 12, each group including two second guide wheels 48, and the two second guide wheels 48 are in contact with the second first pull rope 42. The second guide wheels 48 are used to guide the second first pull rope 42.

[0035] Specifically, one end of the first screw rod 46 located outside the installation cavity 12 is connected to a second rotating wheel 49. The second rotating wheel 49 can be rotated to drive the first screw rod 46. The setting of the second rotating wheel 49 facilitates driving the first screw rod 46.

[0036] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A finger flexion and extension exercise device, characterized in that: The device comprises a main body (1), the main body (1) being provided with a notch (11) for finger movement, a crossbar (2) being arranged in the notch (11), and a first finger ring (3) being connected to the crossbar (2); a mounting cavity (12) being further arranged in the main body (1), and four stretching components (4) being arranged in the mounting cavity (12); The stretching assembly (4) comprises a second finger ring (41), a first pull rope (42), a first connecting plate (43), a first tension spring (44), a second connecting plate (45) and a first screw rod (46); two sets of limiting channels are arranged in the installation cavity (12), and the limiting channels are composed of two parallel plate bodies (15); the second connecting plate (45) is slidably installed in the limiting channels, the first connecting plate (43) is connected to the second connecting plate (45) through the first tension spring (44), the second finger ring (41) is located outside the installation cavity (12), and the second finger ring (41) is fixedly connected to the first connecting plate (43) through the first pull rope (42), and the first screw rod (46) extends into the installation cavity (12) and is threadedly connected to the second connecting plate (45).

2. A finger flexion and extension exercise device according to claim 1, characterized in that Two transmission grooves (13) are symmetrically arranged on the inner side of the notch (11), the cross bar (2) is slidably installed between the two transmission grooves (13), and the two transmission grooves (13) are rotatably connected with second screw rods (5), and the second screw rods (5) pass through the cross bar (2) and are threadedly connected to the cross bar (2); a driving cavity (14) is arranged inside the main body (1), and the two second screw rods (5) extend into the driving cavity (14), and a driving mechanism (6) is arranged in the driving cavity (14), and the driving mechanism (6) is connected to the two second screw rods (5) and is used to drive the two second screw rods (5) to rotate.

3. A finger flexion and extension exercise device according to claim 2, characterized in that The driving mechanism (6) comprises a driving shaft (61), two active bevel gears (62), two driven bevel gears (63) and a first rotating wheel (64); the driving shaft (61) is rotatably mounted in the driving cavity (14), one end of the driving shaft (61) extends out of the driving cavity (14) and is connected to the first rotating wheel (64), the two active bevel gears (62) are fixedly mounted on the driving shaft (61), the two driven bevel gears (63) are respectively connected to the two second screw rods (5), and the two active bevel gears (62) are respectively meshed and connected to the two driven bevel gears (63).

4. A finger flexion and extension exercise device according to claim 1, characterized in that The cross bar (2) has a hollow structure, and two second tension springs (21) are symmetrically arranged in the cross bar (2). The two second tension springs (21) are connected to a second pull rope (22) at one end close to each other. Two holes for extending the second pull ropes (22) are provided on a side of the cross bar (2) close to the first finger ring (3). The cross bar (2) is internally rotatably connected to two first guide wheels (23). The two second pull ropes (22) pass around the first guide wheels (23) and are fixedly connected to the first finger ring (3).

5. The finger flexion and extension exercise device according to claim 1, characterized in that A soft cushion (47) is provided on the inner side of the second finger ring (41).

6. The finger flexion and extension exercise device according to claim 4, characterized in that: Four groups of second guide wheels (48) are arranged inside the installation cavity (12), each group comprising two second guide wheels (48), and the two second guide wheels (48) are in contact with the second pull rope (22).

7. The finger flexion and extension exercise device according to claim 1, characterized in that: One end of the first screw rod (46) located outside the installation cavity (12) is connected to a second rotating wheel (49).

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