Arm rehabilitation device convenient to fix

Abstract

The utility model discloses an arm rehabilitation device convenient to fix, which belongs to the technical field of rehabilitation medical instruments and comprises an arm rehabilitation device body, a driving adjusting mechanism and a fixing device are mounted on the arm rehabilitation device body, and a locking component is mounted on the fixing device. The driving adjusting mechanism comprises a driving assembly and an adjusting assembly, the driving assembly is connected with the adjusting assembly, and the driving assembly and the adjusting assembly are both connected with the arm rehabilitation device body. By means of the mode, the arm rehabilitation device body is fixed to the arm of the human body through the fixing device, the fixing device is locked through the locking assembly, the arm rehabilitation device body moves to drive the driving assembly to move, the adjusting assembly is used for adjusting the moving direction of the driving assembly, and a user rotates the arm; rehabilitation training of the arm is achieved, and the arm rehabilitation device is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation medical equipment, in particular to an arm rehabilitation device which is easy to fix. Background Art

[0002] There are many muscles distributed in the human upper limbs, such as shoulder muscles, arm muscles, forearm muscles and hand muscles. Heavy physical labor or excessive physical exercise may cause muscle strain. At this time, targeted rehabilitation exercises are needed to promote the recovery of arm muscles. However, existing arm rehabilitation devices are complex in structure and not convenient to carry.

[0003] For example, Chinese patent CN207591223U discloses an arm orthopedic rehabilitation device, including a base, a motor is fixedly connected to the top of the inner wall of the base through a support block, and the output shaft of the motor is fixedly connected to a first pulley through a coupling, the surface of the first pulley is connected to the second pulley through a belt drive, a first screw rod is fixedly connected to the axis of the second pulley, and both ends of the first screw rod are rotatably connected to both sides of the inner wall of the base respectively, and both sides of the surface of the first screw rod are fixedly connected to limiting blocks.

[0004] However, the above patented technology has some defects and cannot be conveniently carried outdoors.

[0005] Based on this, the utility model designs an arm rehabilitation device which is easy to fix to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an arm rehabilitation device which is easy to fix.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An arm rehabilitation device that is easy to fix, comprising an arm rehabilitation device body, a driving adjustment mechanism and a fixing device are installed on the arm rehabilitation device body, and a locking assembly is installed on the fixing device;

[0009] The driving and adjusting mechanism comprises a driving component and an adjusting component, wherein the driving component is connected to the adjusting component, and both the driving component and the adjusting component are connected to the main body of the arm rehabilitation device.

[0010] Furthermore, the main body of the arm rehabilitation device includes a first bracket, a second bracket and an outer shell; one end of the first bracket is rotatably connected to the outer shell, one end of the second bracket is fixedly connected to the outer shell, and the outer shell, the driving assembly and the adjustment assembly are all arranged on the outer shell.

[0011] Furthermore, the arm rehabilitation device body also includes a neck strap, and both ends of the neck strap are detachably connected to the first bracket via Velcro.

[0012] Furthermore, the driving assembly includes a disc, a slot and a connecting rod. The disc is rotatably arranged inside the outer shell. The outer circumferential side surface of the disc is provided with a plurality of slots distributed at equal intervals. Two connecting rods are provided. One end of the connecting rods slides through the outer shell and extends to the inside and is fixedly connected to the two side surfaces of the disc respectively. The other ends of the two connecting rods are fixedly connected to the end of the first bracket.

[0013] Furthermore, the driving assembly further comprises a slide groove, and a side surface of the outer shell close to the first bracket is provided with the slide groove, and ends of the two connecting rods are inserted into the slide groove and can slide in the slide groove.

[0014] Furthermore, the adjusting assembly includes a rotating disk, a special-shaped claw, a contact ball, a spring, a fixing rod and an adjusting knob, the rotating disk is rotatably arranged in an outer shell, special-shaped claws are fixedly arranged on both sides of the rotating disk, the two special-shaped claws are alternately engaged with the card slots, a W-shaped groove is opened on the rotating disk, two recesses are arranged on the W-shaped groove, the contact ball is slidably arranged in the outer shell, the two recesses of the W-shaped groove are alternately fitted on the outside of the contact ball, one end of the spring is fixedly installed on the inner side wall of the outer shell, the other end of the spring is fixedly connected to the contact ball, two fixing rods are provided, the two fixing rods are fixedly installed inside the outer shell, the two fixing rods are alternately contacted and connected with one end of the rotating disk, two adjusting knobs are provided and are respectively located on both sides of the outer shell, and the ends of the two adjusting knobs respectively rotate through the two side surfaces of the outer shell and are respectively fixedly installed on the front and rear sides of the rotating disk.

[0015] Furthermore, the fixing device includes a fixed ring, a movable ring, a ratchet and a fixing buckle; the fixing device includes a fixed ring, a movable ring, a ratchet and a fixing buckle; the fixed ring and the movable ring are each provided with four groups, and two of the groups are fixedly connected to the first bracket, and the other two groups are fixedly connected to the second bracket, a fixing buckle is provided on the end of each fixed ring, and each movable ring is provided with multiple ratchets distributed at equal intervals along the length direction, and the ratchets and the fixing buckles are both connected to the locking assembly.

[0016] Furthermore, the locking assembly includes a spiral spring, a pawl, a notch and a slide column. The fixed buckle is provided with a notch, one end of the spiral spring is fixedly connected to the upper end of the fixed buckle, the other end of the spiral spring is fixedly connected to the pawl, one end of the slide column slides through the notch and is fixedly connected to the other end of the pawl, and when the end of the movable ring is inserted into the fixed buckle, the pawl can be engaged with the ratchet.

[0017] Furthermore, the spiral spring, the pawl, the notch and the slide post are each provided with four groups.

[0018] The utility model has the following technical effects:

[0019] 1. When the utility model is in use, the adjusting knob is rotated forward, and the contact ball is engaged with the concave part of the W-shaped groove to limit the rotating disk, so that the special-shaped claw at the left end is engaged with the groove, and the movement of the human arm drives the first bracket to move, and the first bracket drives the connecting rod to move. At this time, the connecting rod slides in the slide groove, and the connecting rod drives the disc to rotate, and the special-shaped claw at the left end slides with the groove. Since the special-shaped claw limits the groove, the human arm can only bend upward. If it needs to move downward, the adjusting knob is rotated in the opposite direction to make the contact ball slide to the other concave part of the W-shaped groove and be engaged therein, and the special-shaped claw at the right end is engaged with the groove, so that the human arm can move downward, and the special-shaped claw at the right end slides with the groove, thereby performing stretching training on the arm. If the arm needs to rest, it is necessary to use a neck strap to fix the first bracket to the human neck.

[0020] 2. When the utility model is in use, the movable ring is inserted into the fixed buckle, the pawl limits the ratchet teeth, and under the action of the spiral spring, the pawl is pressed against the ratchet teeth, so that the movable ring can only move in one direction; when the movable ring is moved to a suitable position, the human arm is fixed by the fixed ring and the movable ring. If the fixed ring and the movable ring are to be unfastened, the sliding column is moved upward along the notch to disengage the pawl from the ratchet teeth, and the movable ring can be smoothly taken out of the fixed buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The utility model is a three-dimensional arm rehabilitation device that is easy to fix. Figure 1 ;

[0023] Figure 2 It is a front view of an arm rehabilitation device that is easy to fix according to the utility model;

[0024] Figure 3 It is a right side view of an arm rehabilitation device that is easy to fix according to the utility model;

[0025] Figure 4 The utility model is a three-dimensional arm rehabilitation device that is easy to fix. Figure 2 ;

[0026] Figure 5 For along Figure 2AA direction cross-sectional view;

[0027] Figure 6 For along Figure 3 BB direction cross-sectional view;

[0028] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0029] Figure 8 for Figure 5 Enlarged view of point D in the middle.

[0030] The numbers in the figure represent:

[0031] 1. Arm rehabilitation device body; 11. First bracket; 12. Second bracket; 13. Outer shell; 14. Neck strap; 2. Drive adjustment mechanism; 21. Drive assembly; 211. Disc; 212. Slot; 213. Connecting rod; 214. Slide; 22. Adjustment assembly; 221. Rotating disc; 222. Special-shaped claw; 223. W-shaped groove; 224. Contact ball; 225. Spring; 226. Fixing rod; 227. Adjustment knob; 3. Fixing device; 31. Fixing ring; 32. Movable ring; 33. Ratchet; 34. Fixing buckle; 4. Locking assembly; 41. Volute spring; 42. Ratchet; 43. Notch; 44. Slide column. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0033] The utility model is further described below in conjunction with embodiments.

[0034] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view. Example 1

[0035] Please refer to the instruction manual Figure 1-8An arm rehabilitation device that is easy to fix includes an arm rehabilitation device body 1, on which a driving adjustment mechanism 2 and a fixing device 3 are installed, and on which a locking assembly 4 is installed; the driving adjustment mechanism 2 includes a driving assembly 21 and an adjusting assembly 22, and the driving assembly 21 is connected to the adjusting assembly 22, and both the driving assembly 21 and the adjusting assembly 22 are connected to the arm rehabilitation device body 1.

[0036] When the utility model is in use, the fixing device 3 fixes the arm rehabilitation device body 1 on the human arm, the locking component 4 locks the fixing device 3, the movement of the arm rehabilitation device body 1 drives the movement of the driving component 21, the adjustment component 22 is used to adjust the movement direction of the driving component 21, and the user rotates his arm to achieve rehabilitation training for the arm and facilitate the carrying of the arm rehabilitation device. Example 2

[0037] like Figure 1-8 As shown, as a preferred embodiment of the utility model, the arm rehabilitation device body 1 includes a first bracket 11, a second bracket 12 and an outer shell 13, one end of the first bracket 11 is rotatably connected to the outer shell 13, one end of the second bracket 12 is fixedly connected to the outer shell 13, the outer shell 13 is connected to the driving component 21 and the adjusting component 22, and the first bracket 11 and the second bracket 12 are both arranged on the outer shell 13.

[0038] The arm rehabilitation device body 1 further includes a neck strap 14 , and both ends of the neck strap 14 are detachably connected to the first bracket 11 via Velcro.

[0039] The driving assembly 21 includes a disc 211, a slot 212 and a connecting rod 213. The disc 211 is rotatably arranged inside the outer shell 13. A plurality of slots 212 are arranged on the outer circumferential surface of the disc 211 and are evenly spaced. Two connecting rods 213 are provided. One end of the connecting rods 213 slides through the outer shell 13 and extends to the inside and is fixedly connected to the two side surfaces of the disc 211 respectively. The other ends of the two connecting rods 213 are fixedly connected to the end of the first bracket 11.

[0040] The driving assembly 21 further includes a slide groove 214 . The slide groove is formed on a side of the outer shell 13 close to the first bracket 11 . The ends of the two connecting rods 213 are inserted into the slide groove 214 and can slide in the slide groove 214 .

[0041] The adjusting assembly 22 includes a rotating disk 221, a special-shaped claw 222, a contact ball 224, a spring 225, a fixing rod 226 and an adjusting knob 227; the rotating disk 221 is rotatably arranged in the outer shell 13, and special-shaped claws 222 are fixedly arranged on both sides of the rotating disk 221, and the two special-shaped claws 222 are alternately engaged with the card slot 212. When the rotating disk 221 is stationary, the special-shaped claws 222 are engaged with the card slot 212, and when the rotating disk 221 rotates, the special-shaped claws 222 are engaged with the card slot 212. The rotating disk 221 is provided with a W-shaped groove 223, and the W-shaped groove 223 is provided with two recesses. The contact ball 224 is slidably arranged in the outer shell 13, and the contact ball 224 is installed in one of the recesses of the W-shaped groove 223. The two recesses of the W-shaped groove 223 are alternately fitted on the outside of the contact ball 224. When the rotating disk 221 is adjusted in position, the W-shaped groove 223 is slidably connected with the contact ball 224, and the position of the rotating disk 221 is adjusted. After completion, the contact ball 224 is clamped in one of the recesses of the W-shaped groove 223; one end of the spring 225 is fixedly installed on the inner side wall of the outer shell 13, and the other end of the spring 225 is fixedly connected to the contact ball 224. The spring 225 is always in a compressed state, and the restoring elastic force of the spring 225 drives the contact ball 224 to press against one of the recesses of the W-shaped groove 223, thereby limiting the rotation of the rotating disk 221 and preventing the special-shaped claw 222 from disengaging from the slot 212; there are two fixing rods 226, and the two fixing rods 226 are fixedly installed inside the outer shell 13. The two fixing rods 226 are alternately contacted and connected with one end of the rotating disk 221, and there are two adjusting knobs 227, which are respectively located on both sides of the outer shell 13. The ends of the two adjusting knobs 227 rotate and penetrate the two side surfaces of the outer shell 13 respectively and are fixedly installed on the front and rear sides of the rotating disk 221 respectively. The fixing rods 226 are used to limit the rotating disk 221.

[0042] There are two special-shaped claws 222 and two fixing rods 226 , which are respectively located on the left and right sides of the rotating disk 221 .

[0043] When the utility model is in use, the adjusting knob 227 is rotated forward, and the contact ball 224 is engaged with the concave part of the W-shaped groove 223 to limit the rotating disk 221, so that the special-shaped claw 222 at the left end is engaged with the groove 212, and the movement of the human arm drives the first bracket 11 to move, and the first bracket 11 drives the connecting rod 213 to move. At this time, the connecting rod 213 slides in the sliding groove 214, and the connecting rod 213 drives the disc 211 to rotate, and the special-shaped claw 222 at the left end slides with the groove 212. The special-shaped claw 222 limits the slot 212 so that the human arm can only bend upward; if it needs to move downward, the adjustment knob 227 is rotated in the opposite direction to make the contact ball 224 slide to the other recessed part of the W-shaped slot 223 and be engaged therein, and the special-shaped claw 222 at the right end engages with the slot 212, so that the human arm can move downward, and the special-shaped claw 222 at the right end slides with the slot 212; if the arm needs to rest, the neck strap 14 needs to be used to fix the first bracket 11 to the human neck. Example 3

[0044] like Figure 1-8 As shown, as a preferred embodiment of the utility model, the fixing device 3 includes a fixed ring 31, a movable ring 32, a ratchet 33 and a fixed buckle 34. The fixed ring 31 and the movable ring 32 are each provided with four groups, and two of the groups are fixedly connected to the first bracket 11, and the other two groups are fixedly connected to the second bracket 12. A fixed buckle 34 is provided on the end of each fixed ring 31, and each movable ring 32 is provided with a plurality of ratchets 33 distributed at equal intervals along the length direction. The ratchets 33 and the fixed buckle 34 are both connected to the locking assembly 4. Among them, the fixed ring 31 and the movable ring 32 located on the first bracket 11, one end of the fixed ring 31 and the movable ring 32 are both fixedly connected to the first bracket 11, and the fixed ring 31 and the movable ring 32 located on the first bracket 11, one end of the fixed ring 31 and the movable ring 32 are both fixedly connected to the second bracket 11.

[0045] The locking assembly 4 includes a spiral spring 41, a pawl 42, a notch 43 and a slide post 44. The notch 43 is provided on the fixing buckle 34. One end of the spiral spring 41 is fixedly connected to the upper end of the fixing buckle 34, and the other end of the spiral spring 41 is fixedly connected to the pawl 42. One end of the slide post 44 slides through the notch 43 and is fixedly connected to the other end of the pawl 42. The end of the slide post 44 can slide up and down in the notch 43. When the end of the movable ring 32 is inserted into the fixing buckle 34, the pawl 42 can mesh with the ratchet 33.

[0046] There are four groups of the spiral spring 41 , the pawl 42 , the notch 43 and the slide post 44 .

[0047] When the utility model is in use, the fixed ring 31 and the movable ring 32 on the first bracket 11 are used to be fixed on the lower arm of the patient's arm, and the fixed ring 31 and the movable ring 32 on the second bracket 12 are used to be fixed on the upper arm of the patient's arm. The movable ring 32 is inserted into the fixed buckle 34, and the pawl 42 limits the ratchet 33. Under the action of the spiral spring 41, the pawl 42 is pressed against the ratchet 33, so that the movable ring 32 can only move in one direction; when the movable ring 32 moves to a suitable position, the human arm is fixed by the fixed ring 31 and the movable ring 32. If the fixed ring 31 and the movable ring 32 are untied, the sliding column 44 is moved upward along the notch 43, so that the pawl 42 is disengaged from the ratchet 33, and the movable ring 32 can be smoothly taken out of the fixed buckle 34.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An arm rehabilitation device that is easy to fix, comprising an arm rehabilitation device body (1), characterized in that: The arm rehabilitation device body (1) is provided with a driving adjustment mechanism (2) and a fixing device (3), and the fixing device (3) is provided with a locking assembly (4); The driving and adjusting mechanism (2) comprises a driving component (21) and an adjusting component (22); the driving component (21) is connected to the adjusting component (22), and the driving component (21) and the adjusting component (22) are both connected to the arm rehabilitation device body (1).

2. The arm rehabilitation device that is easy to fix according to claim 1, characterized in that: The arm rehabilitation device body (1) comprises a first bracket (11), a second bracket (12) and an outer shell (13); one end of the first bracket (11) is rotatably connected to the outer shell (13); one end of the second bracket (12) is fixedly connected to the outer shell (13); and the outer shell (13) and the driving component (21) and the adjusting component (22) are all arranged on the outer shell (13).

3. The arm rehabilitation device that is easy to fix according to claim 2, characterized in that: The arm rehabilitation device body (1) further comprises a neck strap (14), and both ends of the neck strap (14) are detachably connected to the first bracket (11) via Velcro.

4. The arm rehabilitation device that is easy to fix according to claim 2, characterized in that: The driving assembly (21) comprises a disc (211), a slot (212) and a connecting rod (213); the disc (211) is rotatably arranged inside the outer shell (13); a plurality of slots (212) distributed at equal intervals are provided on the circumferential outer side surface of the disc (211); two connecting rods (213) are provided; one end of each connecting rod (213) slides through the outer shell (13) and extends to the inside and is respectively fixedly connected to two side surfaces of the disc (211); the other ends of the two connecting rods (213) are fixedly connected to the end of the first bracket (11).

5. The arm rehabilitation device that is easy to fix according to claim 4, characterized in that: The driving assembly (21) further comprises a slide groove (214), the outer shell (13) having a slide groove formed on a side surface close to the first bracket (11), and the ends of the two connecting rods (213) are inserted into the slide groove (214) and are capable of sliding in the slide groove (214).

6. The arm rehabilitation device that is easy to fix according to claim 4, characterized in that: The adjustment assembly (22) comprises a rotating disk (221), a special-shaped claw (222), a contact ball (224), a spring (225), a fixing rod (226) and an adjustment knob (227); the rotating disk (221) is rotatably disposed in the outer shell (13); special-shaped claws (222) are fixedly disposed on both sides of the rotating disk (221); the two special-shaped claws (222) are alternately engaged with the slots (212); a W-shaped groove (223) is provided on the rotating disk (221); two recesses are provided on the W-shaped groove (223); the contact ball (224) is slidably disposed in the outer shell (13); the two recesses of the W-shaped groove (223) are alternately engaged with the slots (212); On the outside of the contact ball (224), one end of a spring (225) is fixedly mounted on the inner side wall of the outer shell (13), and the other end of the spring (225) is fixedly connected to the contact ball (224). Two fixing rods (226) are provided, and the two fixing rods (226) are fixedly mounted inside the outer shell (13). The two fixing rods (226) are alternately contacted and connected with one end of the rotating disk (221). Two adjusting knobs (227) are provided and are respectively located on both sides of the outer shell (13). The ends of the two adjusting knobs (227) respectively rotate through the two side surfaces of the outer shell (13) and are respectively fixedly mounted on the front and rear sides of the rotating disk (221).

7. The arm rehabilitation device that is easy to fix according to claim 2, characterized in that: The fixing device (3) comprises a fixing ring (31), a movable ring (32), ratchets (33) and fixing buckles (34). The fixing ring (31) and the movable ring (32) are each provided with four groups, two of which are fixedly connected to the first bracket (11), and the other two are fixedly connected to the second bracket (12). A fixing buckle (34) is provided at the end of each fixing ring (31). Each movable ring (32) is provided with a plurality of ratchets (33) distributed at equal intervals along the length direction. The ratchets (33) and the fixing buckles (34) are both connected to the locking assembly (4).

8. The arm rehabilitation device that is easy to fix according to claim 7, characterized in that: The locking assembly (4) comprises a spiral spring (41), a ratchet (42), a notch (43) and a slide post (44); the notch (43) is provided on the fixing buckle (34); one end of the spiral spring (41) is fixedly connected to the upper end of the fixing buckle (34); the other end of the spiral spring (41) is fixedly connected to the ratchet (42); one end of the slide post (44) slides through the notch (43) and is fixedly connected to the other end of the ratchet (42); when the end of the movable ring (32) is inserted into the fixing buckle (34), the ratchet (42) can be meshed and connected with the ratchet (33).

9. The arm rehabilitation device that is easy to fix according to claim 8, characterized in that: The spiral spring (41), the ratchet pawl (42), the notch (43) and the slide column (44) are each provided in four groups.

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