Arm guard for carrying out auxiliary movement on elbow

Abstract

The utility model relates to the technical field of elbow auxiliary activities, in particular to an arm guard for carrying out auxiliary activities on elbows. Comprising a small arm fixing frame, a rotating shaft is rotationally connected into the small arm fixing frame, a large arm fixing frame is fixedly arranged at the rear end of the rotating shaft, a driving mechanism is arranged between the circumferential outer wall of the rotating shaft and the small arm fixing frame, and movable plates are arranged at the outer ends of the small arm fixing frame and the large arm fixing frame through distance adjusting mechanisms; and bandages are fixedly arranged on one sides of the forearm fixing frame, the big arm fixing frame and the two movable plates. By arranging the bandages, the winding rollers, the rotating shaft and the rotating assembly, after the arm sequentially penetrates through a semi-ring defined by the four bandages and the forearm fixing frame and the big arm fixing frame are worn on the outer side of the arm, the two winding motors are synchronously started through remote control equipment, so that the four winding rollers wind the four bandages respectively, and the four bandages are wound by the rotating shaft and the rotating assembly; the binding band is tightened and bound to the outer side of the arm of the user, and rapid wearing and fixing of the forearm fixing frame and the big arm fixing frame are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow auxiliary activities, in particular to an arm guard for assisting the elbow activities. Background Art

[0002] As one of the components of the human body, the upper limbs include the shoulder, arm, elbow, forearm and hand. The "lower arm" is the part from the elbow joint to the wrist joint; the "upper arm" is the part from the shoulder joint to the elbow joint. Currently, there are two main ways to stretch and treat elbow joint rehabilitation: the first is to treat by manual traction and stretching; the second is to drive the limbs to reciprocate through an electric mechanical arm.

[0003] For example, the Chinese patent publication number is CN219184191U, which is a mobile elbow auxiliary fixation device. The device is fixed to the patient's arm by a restraining ring, so that the patient can drive the device to move as a whole. The movable structure replaces the traditional fixed structure, making it more flexible in use. The rotation of the worm drives the worm wheel to be linked, thereby adjusting the patient's elbow angle, and can assist the elbow in movement, which is used for elbow joint rehabilitation stretching treatment.

[0004] In the above patent, it is difficult for the patient to tie the restraint ring on the outside of the arm by himself, and he needs to rely on the assistance of medical attendants. Therefore, it is inconvenient for the patient to use the above mobile elbow auxiliary fixation device by himself. In view of this, we propose a fixed printed circuit board for refrigerators. Summary of the invention

[0005] The purpose of the utility model is to provide an arm guard for assisting the movement of the elbow, so as to solve the problems raised in the above-mentioned background technology.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] As a further improvement of the present technical solution, the rotating assembly includes a driven bevel gear fixedly mounted on the circumferential outer wall of the shaft rod, and mounting grooves are provided on one side of the small arm fixing frame and the large arm fixing frame, and a winding motor is fixed inside the mounting groove, and the output shaft of the winding motor is transmission-connected to the driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear.

[0008] As a further improvement of the technical solution, the four circumferential outer walls of the shafts located on both sides of the winding roller are rotatably connected with positioning plates, and the eight positioning plates are respectively fixed on one side of the forearm fixing frame, the upper arm fixing frame and the two movable plates.

[0009] As a further improvement of the present technical solution, the distance adjustment mechanism includes guide rods symmetrically fixed on the outer ends of the forearm fixing frame and the boom fixing frame, guide grooves are symmetrically opened inside the movable plate, and the two guide grooves are respectively movably sleeved on the outer sides of the two guide rods, the outer ends of the forearm fixing frame and the boom fixing frame are rotatably connected with a screw rod, a knob is fixed on the outer end of the screw rod, and the movable plate is threadedly connected to the circumferential outer wall of the screw rod.

[0010] As a further improvement of the technical solution, the driving mechanism includes a swing arm motor fixedly mounted on one side of the forearm fixing frame, the swing arm motor output shaft is transmission-connected with a worm, a worm wheel is fixedly mounted on the circumferential outer wall of the rotating shaft, and the worm wheel is meshed with the worm.

[0011] As a further improvement of the technical solution, the portion of the binding strap located behind the through slot forms a semi-circular shape, and the semi-circular portions of the four binding straps are located on the same vertical plane.

[0012] As a further improvement of the technical solution, pressure sensors are fixedly installed inside the four straps, and a battery, a remote control module and a signal processing module are fixedly installed on one side of the forearm fixing frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The arm guard for assisting the elbow movement is provided with straps, winding rollers, a rotating shaft and a rotating assembly. After the arm is successively passed through the semi-circle formed by four straps and the forearm fixing frame and the upper arm fixing frame are worn on the outside of the arm, two winding motors are synchronously started through a remote control device, so that the four winding rollers respectively wind up the four straps, tighten the straps and bind them on the outside of the user's arm, thereby realizing the quick wearing and fixing of the forearm fixing frame and the upper arm fixing frame.

[0015] 2. The arm guard for assisting the elbow movement is provided with a movable plate and a distance adjustment mechanism. When the screw rod is twisted by holding the knob, the threaded connection between the screw rod and the movable plate enables the movable plate to move under the guidance of two guide rods, thereby adjusting the distance between the movable plate and the forearm fixing frame or the upper arm fixing frame, and adjusting the distance between the two straps tied to the user's forearm or upper arm to meet the needs of users of different body shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side cutaway perspective view of the utility model;

[0018] Figure 3 It is a front sectional perspective view of the upper arm fixing frame of the utility model;

[0019] Figure 4 For the utility model Figure 1 A magnified view of the structure at center.

[0020] The meaning of each number in the figure is:

[0021] 1. Forearm fixing frame; 2. Rotating shaft; 3. Forearm fixing frame; 4. Swing arm motor; 5. Worm; 6. Worm wheel; 7. Movable plate; 8. Binding strap; 9. Through slot; 10. Winding roller; 11. Positioning plate; 12. Shaft; 13. Driven bevel gear; 14. Mounting slot; 15. Winding motor; 16. Driving bevel gear; 17. Driving disk; 18. Sliding rod; 19. Driven disk; 20. Guide rod; 21. Guide slot; 22. Screw rod; 23. Knob; 24. Pressure sensor; 25. Battery; 26. Remote control module; 27. Signal processing module. DETAILED DESCRIPTION

[0022] 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. Example

[0023] See also Figure 1-Figure 4As shown, one of the purposes of this embodiment is to provide an arm guard for assisting the elbow movement, including a forearm fixing frame 1, a rotating shaft 2 is rotatably connected inside the forearm fixing frame 1, a large arm fixing frame 3 is fixedly arranged at the rear end of the rotating shaft 2, and a driving mechanism is arranged between the circumferential outer wall of the rotating shaft 2 and the forearm fixing frame 1, and movable plates 7 are arranged at the outer ends of the forearm fixing frame 1 and the large arm fixing frame 3 through a distance adjustment mechanism, and a strap 8 is fixedly arranged on one side of the forearm fixing frame 1, the large arm fixing frame 3 and the two movable plates 7, and the forearm fixing frame 1, the large arm fixing frame 3 and the two movable plates 7 are fixedly arranged. Through slots 9 are provided inside the arm fixing frame 3 and the two movable plates 7, one ends of the four straps 8 pass through the four through slots 9 respectively and are fixed with winding rollers 10, and shafts 12 are fixed inside the winding rollers 10, wherein rotating components are provided on the outsides of the two shafts 12, and active disks 17 are fixed on the outer ends of the two shafts 12, and sliding rods 18 are symmetrically fixed on the outer side walls of the active disks 17, and driven disks 19 are fixed on the inner ends of the other two shafts 12, and the two driven disks 19 are movably sleeved on the circumferential outer walls of the four sliding rods 18 respectively.

[0024] In the utility model, the rotating assembly includes a driven bevel gear 13 fixed on the circumferential outer wall of the shaft 12, and a mounting groove 14 is opened on one side of the small arm fixing frame 1 and the big arm fixing frame 3. A winding motor 15 is fixed inside the mounting groove 14, and the output shaft of the winding motor 15 is connected to the driving bevel gear 16 through transmission, and the driving bevel gear 16 is meshed with the driven bevel gear 13. The circumferential outer walls of the four shafts 12 are located on both sides of the winding roller 10 and are rotatably connected with positioning plates 11, and the eight positioning plates 11 are respectively fixed on one side of the small arm fixing frame 1, the big arm fixing frame 3 and the two movable plates 7. After the winding motor 15 is started, its output shaft drives the driving bevel gear 16 to rotate, and through the meshing transmission of the driving bevel gear 16 and the driven bevel gear 13, the shaft 12 drives the driving disk 17 to rotate.

[0025] In the utility model, the distance adjustment mechanism includes guide rods 20 symmetrically fixed on the outer ends of the forearm fixing frame 1 and the upper arm fixing frame 3, and guide grooves 21 are symmetrically opened inside the movable plate 7. The two guide grooves 21 are movably sleeved on the outer sides of the two guide rods 20 respectively. The outer ends of the forearm fixing frame 1 and the upper arm fixing frame 3 are rotatably connected with screw rods 22, and the outer ends of the screw rods 22 are fixed with knobs 23, and the movable plate 7 is threadedly connected to the circumferential outer wall of the screw rod 22. When the knob 23 is held and the screw rod 22 is turned, the screw rod 22 is threadedly connected to the movable plate 7, so that the movable plate 7 moves under the guiding action of the two guide rods 20, thereby adjusting the distance between the movable plate 7 and the forearm fixing frame 1 or the upper arm fixing frame 3, and adjusting the distance between the two straps 8 tied to the forearm or upper arm of the user to meet the use of users of different body shapes.

[0026] In the utility model, the driving mechanism includes a swing arm motor 4 fixedly mounted on one side of the forearm fixing frame 1, the output shaft of the swing arm motor 4 is connected to a worm 5, a worm wheel 6 is fixedly mounted on the circumferential outer wall of the rotating shaft 2, and the worm wheel 6 is meshed with the worm 5. After the swing arm motor 4 is started, its output shaft drives the worm 5 to rotate, and through the meshing transmission of the worm 5 and the worm wheel 6, the rotating shaft 2 drives the upper arm fixing frame 3 to rotate, and the angle between the upper arm fixing frame 3 and the forearm fixing frame 1 is adjusted to assist the user's elbow movement.

[0027] In the utility model, the part of the strap 8 located behind the through slot 9 forms a semi-circular shape. When the strap 8 is in a relaxed state, the user passes the arm through the four semi-circular shapes formed by the straps 8 in succession, wears the forearm fixing frame 1 and the upper arm fixing frame 3 on the outside of the arm, and the semi-circular parts of the four straps 8 are located on the same vertical plane, thereby improving wearing comfort.

[0028] In the utility model, pressure sensors 24 are fixedly arranged inside the four straps 8, a battery 25, a remote control module 26 and a signal processing module 27 are fixedly arranged on one side of the forearm fixing frame 1, the swing arm motor 4 and the winding motor 15 are electrically connected to the battery 25 and the remote control module 26, the battery 25 supplies power to the swing arm motor 4 and the winding motor 15, the remote control module 26 is used in conjunction with the remote control, and the user can control the operation of the swing arm motor 4 and the winding motor 15 through the remote control, the four pressure sensors 24 are electrically connected to the signal processing module 27, and the signal processing module 27 is electrically connected to the remote control module 26, when the strap 8 is tightened and bound to the user's arm, after the pressure sensor 24 is subjected to a certain amount of pressure, the signal processing module 27 sends an electrical signal to the remote control module 26, automatically shutting down the winding motor 15, and preventing the strap 8 from being too tight and strangling the user.

[0029] In summary, the working principle of the present scheme is as follows: the user holds the knob 23 and turns the screw rod 22, and the screw rod 22 is threadedly connected to the movable plate 7, so that the movable plate 7 moves under the guidance of the two guide rods 20, and then adjusts the distance between the movable plate 7 and the forearm fixing frame 1 or the upper arm fixing frame 3 according to the length of the user's own arm. The user then passes the arm through the semi-circular shape surrounded by the four straps 8 in succession, wears the forearm fixing frame 1 and the upper arm fixing frame 3 on the outside of the arm, and synchronously starts the two winding motors 15 through the remote control device. The output shaft of the winding motor 15 drives the active bevel gear 16 to rotate, and the meshing transmission of the active bevel gear 16 and the driven bevel gear 13 makes the other two shafts 12 respectively drive the two active disks 17 to rotate, and the active disk 17 drives the driven disk 19 to rotate through the two sliding rods 18. 19 drives the other two shafts 12 to rotate respectively, so that the four winding rollers 10 respectively wind up the four straps 8, and tighten the straps 8 to bind them to the outside of the user's arm. In this process, after the pressure sensor 24 is subjected to a certain amount of pressure, the signal processing module 27 sends an electrical signal to the remote control module 26, and automatically turns off the corresponding winding motor 15 to prevent the straps 8 from being too tight and injuring the user. After the user wears and fixes the forearm fixing frame 1 and the upper arm fixing frame 3 on the outside of the arm through the above steps, when the user needs to move the elbow, the remote control is used to start the swing arm motor 4, and its output shaft drives the worm 5 to rotate. Through the meshing transmission of the worm 5 and the worm wheel 6, the rotating shaft 2 drives the upper arm fixing frame 3 to rotate, and the angle between the upper arm fixing frame 3 and the forearm fixing frame 1 is adjusted to assist the user's elbow movement.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An arm guard for assisting elbow movement, comprising a forearm fixing frame (1), characterized in that: The forearm fixing frame (1) is rotatably connected to a rotating shaft (2), a large arm fixing frame (3) is fixedly provided at the rear end of the rotating shaft (2), and a driving mechanism is provided between the circumferential outer wall of the rotating shaft (2) and the forearm fixing frame (1), movable plates (7) are provided at the outer ends of the forearm fixing frame (1) and the large arm fixing frame (3) via a distance adjustment mechanism, and straps (8) are fixedly provided on one side of the forearm fixing frame (1), the large arm fixing frame (3) and the two movable plates (7), and passages are provided inside the forearm fixing frame (1), the large arm fixing frame (3) and the two movable plates (7). The four straps (8) are provided with a plurality of grooves (9), one end of each of the four straps (8) passes through the four through grooves (9) and is fixedly provided with a winding roller (10), a shaft (12) is fixedly provided inside the winding roller (10), two shafts (12) are provided with a rotating assembly on the outside, and the outer ends of the two shafts (12) are fixedly provided with a driving disk (17), the outer wall of the driving disk (17) is symmetrically fixedly provided with a sliding rod (18), and the inner ends of the other two shafts (12) are fixedly provided with a driven disk (19), and the two driven disks (19) are movably sleeved on the circumferential outer walls of the four sliding rods (18).

2. The arm guard for assisting the elbow movement according to claim 1, characterized in that: The rotating assembly comprises a driven bevel gear (13) fixedly mounted on the circumferential outer wall of the shaft (12); a mounting groove (14) is provided on one side of the small arm fixing frame (1) and the large arm fixing frame (3); a winding motor (15) is fixedly mounted inside the mounting groove (14); an output shaft of the winding motor (15) is drivingly connected to a driving bevel gear (16), and the driving bevel gear (16) is meshed with the driven bevel gear (13).

3. The arm guard for assisting the elbow movement according to claim 1, characterized in that: Positions of the circumferential outer walls of the four shafts (12) located on both sides of the winding roller (10) are rotatably connected to positioning plates (11), and the eight positioning plates (11) are respectively fixed to one side of the forearm fixing frame (1), the upper arm fixing frame (3) and the two movable plates (7).

4. The arm guard for assisting the elbow movement according to claim 1, characterized in that: The pitch adjustment mechanism comprises guide rods (20) symmetrically fixed on the outer ends of the forearm fixing frame (1) and the upper arm fixing frame (3); guide grooves (21) are symmetrically opened inside the movable plate (7); the two guide grooves (21) are respectively movably sleeved on the outer sides of the two guide rods (20); the outer ends of the forearm fixing frame (1) and the upper arm fixing frame (3) are rotatably connected to the screw rods (22); the outer ends of the screw rods (22) are fixedly provided with knobs (23); and the movable plate (7) is threadedly connected to the circumferential outer wall of the screw rods (22).

5. The arm guard for assisting the elbow movement according to claim 1, characterized in that: The driving mechanism comprises a swing arm motor (4) fixedly mounted on one side of the forearm fixing frame (1); an output shaft of the swing arm motor (4) is drivingly connected to a worm (5); a worm wheel (6) is fixedly mounted on the circumferential outer wall of the rotating shaft (2), and the worm wheel (6) is meshed with the worm (5).

6. The arm guard for assisting the elbow movement according to claim 1, characterized in that: The portion of the binding strap (8) located behind the through slot (9) forms a semi-circular shape, and the semi-circular portions of the four binding straps (8) are located on the same vertical plane.

7. The arm guard for assisting the elbow movement according to claim 1, characterized in that: A pressure sensor (24) is fixedly arranged inside each of the four binding straps (8), and a storage battery (25), a remote control module (26) and a signal processing module (27) are fixedly arranged on one side of the forearm fixing frame (1).

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