Arm lifting rehabilitation training device

Abstract

The utility model discloses an arm lifting rehabilitation training device which comprises a large arm elbow joint and a front arm elbow joint rotationally hinged to the large arm elbow joint. The large arm elbow joint and the front arm elbow joint are each provided with an adjustable arm support, and each adjustable arm support comprises an expansion air bag. The deflation port is communicated with the expansion air bag and is fixedly arranged on the elbow joint of the big arm; the elastic ball is movably arranged in the elbow joint of the big arm and is used for blocking the deflation port; and the lower gear is fixedly arranged on the forearm elbow joint, rotates along with the forearm elbow joint and extrudes and pushes the elastic ball. According to the arm lifting rehabilitation training device, the requirements of users with different arm diameters can be met through the design of the expansion air bag and the deflation port, and during arm bending and stretching training, the deflation port is appropriately deflated, so that unsmooth blood flow caused by the fact that raised muscles are pressed by the expansion air bag during arm bending and stretching of the user is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation training, in particular to an arm lifting rehabilitation training device. Background Art

[0002] The arm lifting rehabilitation training device is a device used to help rehabilitation patients recover arm function. It usually includes an adjustable support and a device connected to the arm to help patients perform arm lifting and exercise training.

[0003] In conjunction with publication number CN104434469A, publication date 2015-03-25, an exoskeleton-type arm rehabilitation training device is disclosed.

[0004] The prior art including the above patents includes a mobile frame, a shoulder joint drive unit, an upper arm length fine-adjustment mechanism, an elbow joint drive unit, a forearm length fine-adjustment mechanism, and a wrist joint drive unit. The shoulder joint and drive unit are mainly composed of a shoulder rotation motor, a rotating horizontal shoulder rod, a swinging vertical shoulder rod, and a shoulder swinging motor. Under the control of two sets of motors, the horizontal rotation and up and down swing of the shoulder joint can be achieved; the upper arm and forearm fine-adjustment mechanism can be adjusted according to the actual arm length of different trainees. While meeting the needs of different groups of people, the length fine-adjustment mechanism is arranged as close to the frame end as possible to minimize the load at the end of the robotic arm; the elbow joint and wrist joint are driven by flexible synchronous belts. In order to fix the arm, the above technology installs an upper arm support, a forearm support and a hand support on the entire arm, but the arm support is difficult to fit arms of different arm diameters, and an elastic band is usually used to bind and fix the arm. However, during the rehabilitation training process, the arm is relaxed during straight arm training, while the arm needs to be flexed and stretched repeatedly during flexion and extension training. The muscles on the arm will repeatedly bulge and recover, and the elastic band will compress the bulging muscles, causing blood flow problems and affecting the training effect. Utility Model Content

[0005] The purpose of the utility model is to provide an arm lifting rehabilitation training device to solve the above problems.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: an arm lifting rehabilitation training device, comprising an upper arm elbow joint and a forearm elbow joint rotatably hinged thereon;

[0007] The upper arm elbow joint and the forearm elbow joint are both provided with an adjustable arm support, and the adjustable arm support includes an inflatable air bag;

[0008] A deflation port connected to the inflation airbag and fixedly arranged on the elbow joint of the upper arm;

[0009] An elastic ball movably arranged in the elbow joint of the upper arm is used to block the air release port;

[0010] The lower gear is fixedly arranged on the forearm elbow joint and rotates with the forearm elbow joint to squeeze and push the elastic ball.

[0011] Preferably, the adjustable arm support further comprises a fixedly arranged rubber support, the inflatable airbag is symmetrically arranged on the rubber support, and a connecting piece for fixing is arranged on the inflatable airbag.

[0012] Preferably, an upper gear is fixedly provided on the hinge shaft of the upper arm elbow joint, and an upper notch for accommodating an elastic ball is provided on the upper gear.

[0013] Preferably, the upper gear and the lower gear are coaxial, and the lower gear is provided with a lower notch that can overlap with the upper notch.

[0014] Preferably, a massage roller is rotatably arranged inside the rubber support.

[0015] Preferably, the massage roller is driven by a transmission mechanism, and the transmission mechanism comprises:

[0016] A first bevel gear rotatably arranged on the elbow joint of the forearm and meshing with the upper gear for transmission;

[0017] A second bevel gear which is rotatably arranged on the elbow joint of the upper arm and meshes with the lower gear for transmission;

[0018] A transmission belt is used for transmitting and connecting the first bevel gear and the massage roller, and the second bevel gear and the massage roller.

[0019] In the above technical scheme, the utility model provides an arm lifting rehabilitation training device, which has the following beneficial effects: through the design of the inflation airbag and the deflation port, it can meet the needs of users with different arm diameters, and during arm flexion and extension training, the deflation port is properly deflated to prevent the bulging muscles of the user from being compressed by the inflation airbag when the user flexes and extends the arm, resulting in poor blood flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the positions of the expansion airbag and the upper and lower gears provided in an embodiment of the utility model;

[0023] Figure 3A schematic cross-sectional view of the inflatable airbag, elastic ball and deflation port structure provided in an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the positions of the upper gear, the lower gear and the elastic ball provided in an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of a massage roller and a transmission mechanism provided in an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Upper arm elbow joint; 2. Forearm elbow joint; 3. Adjustable arm rest; 31. Inflatable air bag; 32. Rubber support; 33. Massage roller; 4. Upper gear; 41. Upper notch; 5. Lower gear; 51. Lower notch; 6. Elastic ball; 7. Air vent; 8. First bevel gear; 81. Second bevel gear; 9. Transmission belt. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1-5 As shown, an arm lifting rehabilitation training device comprises an upper arm elbow joint 1 and a forearm elbow joint 2 rotatably hinged thereon;

[0030] The upper arm elbow joint 1 and the forearm elbow joint 2 are both provided with an adjustable arm support 3, and the adjustable arm support 3 includes an inflatable air bag 31;

[0031] An air release port 7 connected to the expansion air bag 31 and fixedly arranged on the upper arm elbow joint 1;

[0032] An elastic ball 6 movably disposed in the upper arm elbow joint 1 is used to block the air release port 7;

[0033] The lower gear 5 is fixedly arranged on the forearm elbow joint 2, and rotates with the forearm elbow joint 2 and pushes the elastic ball 6.

[0034] Specifically, the forearm elbow joint 2 and the upper arm elbow joint 1 complete lifting or flexion and other actions through motors and control program settings. The above-mentioned electronic components are common technical knowledge known to technical personnel in this field and will not be elaborated on again.

[0035] Furthermore, the inflation airbag 31 is connected to an inflation pump, and the user extends his arm into the device, with the upper arm and forearm respectively located in the adjustable arm rest 3 on the upper arm elbow joint 1 and the forearm elbow joint 2. At this time, the user's arm then activates the inflation valve to inflate the inflation airbag 31, so that the inflation airbag 31 is close to the user's arm and fixes the arm to meet the needs of users with different arm diameters, and then stops inflating. When the user performs straight arm lifting training, the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is expanded to 180°, so that the user's arm is straightened, and the upper end surface of the air release port 7 is a concave arc surface. At this time The elastic ball 6 is pressed against the arc surface to block the air vent 7. Then, when the user performs arm flexion and extension training, the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is first reduced and then expanded, so that the lower gear 5 rotates with the forearm elbow joint 2 relative to the upper arm elbow joint 1. During the rotation of the lower gear 5, the elastic ball 6 is pushed, so that the elastic ball 6 no longer blocks the air vent 7, so that a certain amount of gas in the inflation airbag 31 is released through the air vent 7, and the inflation pump is started again for replenishment, so that the inflation airbag 31 can still fix the user's arm, but the internal air pressure is lower than that during straight arm lifting training, to avoid oppression on the arm during flexion and extension.

[0036] In the above technology, the design of the inflation airbag 31 and the deflation port 7 can meet the needs of users with different arm diameters. During arm flexion and extension training, the deflation port 7 is deflated appropriately to prevent the bulging muscles of the user from being compressed by the inflation airbag 31 when the user flexes and extends the arms, resulting in poor blood flow.

[0037] As an embodiment further provided by the present invention, the adjustable arm support 3 further includes a fixedly arranged rubber support 32 , the inflatable airbag 31 is symmetrically arranged on the rubber support 32 , and a connector for fixing is arranged on the inflatable airbag 31 .

[0038] Specifically, after being inflated, the inflatable airbag 31 inflates from both sides of the arm to wrap and clamp the arm, and then the inflatable airbag 31 is fixed using a connector. The connector can be a strap or Velcro, or other connection structures known to those skilled in the art.

[0039] As another embodiment further provided by the present invention, an upper gear 4 is fixedly provided on the hinge shaft of the upper arm elbow joint 1 , and an upper notch 41 for accommodating the elastic ball 6 is opened on the upper gear 4 .

[0040] Specifically, the elastic ball 6 is initially located in the upper notch 41, and at this time the elastic ball 6 conflicts with the upper notch 41, so that the elastic ball 6 is in close contact with the upper end surface of the vent 7, thereby blocking the vent 7. When the lower gear 5 rotates relative to the upper gear 4, the lower gear 5 pushes the elastic ball 6 to deform the elastic ball 6, and a gap is generated between the elastic ball 6 and the vent 7, so that the vent 7 is no longer blocked.

[0041] As another embodiment further provided by the present invention, the upper gear 4 and the lower gear 5 are coaxial, and the lower gear 5 is provided with a lower notch 51 that can overlap with the upper notch 41 .

[0042] Specifically, when the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is 180°, the upper notch 41 overlaps with the lower notch 51, and the two overlapping notches form a space that can accommodate the elastic ball 6, and the upper gear 4 and the lower gear 5 are both truncated cone structures, so that the elastic ball 6 is pressed by the sides of the upper notch 41 and the lower notch 51, and the elastic ball 6 is pressed on the air vent 7 to block it. When relative rotation occurs between the upper arm elbow joint 1 and the forearm elbow joint 2, the upper gear 4 and the lower gear 5 are driven to rotate relative to each other, the upper notch 41 and the lower notch 51 are staggered, and the elastic ball 6 is always located in the upper notch 41. When the lower gear 5 rotates, the tooth particles push the elastic ball 6, causing the elastic ball 6 to deform and move upward, and the elastic ball 6 is no longer close to the air vent 7. When the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is 180° again, the upper notch 41 overlaps with the lower notch 51 again, and the elastic ball 6 recovers under the action of its own deformation potential energy and blocks the air vent 7 again.

[0043] As another embodiment further provided by the present invention, the massage roller 33 is driven by a transmission mechanism, and the transmission mechanism includes:

[0044] A first bevel gear 8 rotatably disposed on the forearm elbow joint 2 and meshing with the upper gear 4 for transmission;

[0045] A second bevel gear 81 rotatably disposed on the upper arm elbow joint 1 and meshing with the lower gear 5;

[0046] The transmission belt 9 is used for transmission connection between the first bevel gear 8 and the massage roller 33 , and between the second bevel gear 81 and the massage roller 33 .

[0047] Specifically, since the upper gear 4 is fixedly arranged on the hinge shaft of the upper arm elbow joint 1, when the forearm elbow joint 2 and the upper arm elbow joint 1 rotate relative to each other, the upper gear 4 rotates relative to the forearm elbow joint 2, and drives the first bevel gear 8 to rotate through meshing transmission, and the lower gear 5 rotates relative to the upper arm elbow joint 1, and drives the second bevel gear 81 to rotate through meshing transmission, and then the first bevel gear 8 and the second bevel gear 81 drive the massage roller 33 to rotate through the transmission belt 9, and the massage roller 33 is located in the rubber support 32. When the massage roller 33 rotates, it rolls the user's arm through the rubber support 32, thereby accelerating the blood flow of the user and relieving muscle fatigue.

[0048] Working principle: the inflation airbag 31 is connected to an inflation pump, and the user extends his arm into the device, and the upper arm and forearm are respectively located in the adjustable arm rest 3 on the upper arm elbow joint 1 and the forearm elbow joint 2. At this time, the user's arm then activates the inflation valve to inflate the inflation airbag 31, so that the inflation airbag 31 is close to the user's arm and fixes the arm to meet the needs of users with different arm diameters, and then stops inflating. When the user performs straight arm lifting training, the user's arm is straightened, and the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is expanded to 180°, and the upper notch 41 overlaps with the lower notch 51, and the two overlapping notches form a space that can accommodate the elastic ball 6, and the upper gear 4 and the lower gear 5 are both truncated cone structures, so that the elastic ball 6 is pressed by the sides of the upper notch 41 and the lower notch 51, and the elastic ball 6 is pressed on the air release port 7 to block it. Subsequently, when the user performs arm flexion and extension training, the angle between the upper arm elbow joint 1 and the forearm elbow joint 2 is first reduced and then expanded, so that the lower gear 5 moves with the forearm elbow The joint 2 rotates relative to the upper arm elbow joint 1, driving the upper gear 4 and the lower gear 5 to rotate relative to each other. The upper notch 41 and the lower notch 51 are staggered, and the elastic ball 6 is always located in the upper notch 41. When the lower gear 5 rotates, the teeth push the elastic ball 6, causing the elastic ball 6 to deform and move upward. The elastic ball 6 is no longer close to the air release port 7, and the inflation pump is started again for replenishment, so that the inflatable airbag 31 can still fix the user's arm, but the internal air pressure is lower than that during straight arm lifting training, avoiding compression of the arm during flexion and extension. At the same time, the upper gear 4 rotates relative to the forearm elbow joint 2, and drives the first bevel gear 8 to rotate through meshing transmission. The lower gear 5 rotates relative to the upper arm elbow joint 1, and drives the second bevel gear 81 to rotate through meshing transmission. Subsequently, the first bevel gear 8 and the second bevel gear 81 drive the massage roller 33 to rotate through the transmission belt 9, and the massage roller 33 is located in the rubber support 32. When the massage roller 33 rotates, it rolls the user's arm through the rubber support 32, thereby accelerating the user's blood flow and relieving muscle fatigue.

[0049] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An arm lifting rehabilitation training device, It is characterized in that It comprises an upper arm elbow joint (1) and a forearm elbow joint (2) rotatably hinged thereon; The upper arm elbow joint (1) and the forearm elbow joint (2) are both provided with an adjustable arm support (3), and the adjustable arm support (3) comprises an inflatable air bag (31); An air release port (7) connected to the expansion air bag (31) and fixedly arranged on the upper arm elbow joint (1); An elastic ball (6) movably arranged in the upper arm elbow joint (1) and used to block the air release port (7); The lower gear (5) is fixedly arranged on the forearm elbow joint (2), rotates along with the forearm elbow joint (2) and pushes the elastic ball (6).

2. An arm lifting rehabilitation training device according to claim 1, It is characterized in that The adjustable arm support (3) further comprises a fixedly arranged rubber support (32), the expansion airbag (31) is symmetrically arranged on the rubber support (32), and a connecting piece for fixing is arranged on the expansion airbag (31).

3. The arm lifting rehabilitation training device according to claim 1, It is characterized in that An upper gear (4) is fixedly arranged on the hinge shaft of the upper arm elbow joint (1), and an upper notch (41) for accommodating an elastic ball (6) is provided on the upper gear (4).

4. The arm lifting rehabilitation training device according to claim 3, It is characterized in that The upper gear (4) and the lower gear (5) are coaxial, and the lower gear (5) is provided with a lower notch (51) that can overlap with the upper notch (41).

5. The arm lifting rehabilitation training device according to claim 2, It is characterized in that A massage roller (33) is rotatably arranged inside the rubber support (32).

6. The arm lifting rehabilitation training device according to claim 5, It is characterized in that The massage roller (33) is driven by a transmission mechanism, and the transmission mechanism comprises: A first bevel gear (8) rotatably disposed on the forearm elbow joint (2) and meshing with the upper gear (4); A second bevel gear (81) rotatably disposed on the upper arm elbow joint (1) and meshing with the lower gear (5); A transmission belt (9) is used for transmission connection between the first bevel gear (8) and the massage roller (33), and between the second bevel gear (81) and the massage roller (33).

Images