Joint rehabilitation therapeutic apparatus
By designing a joint rehabilitation therapy device, a variable speed motor is used to drive the crankshaft and transmission plate to achieve the reciprocating rotation of the lower leg, which solves the problems of secondary injury and fatigue in knee joint rehabilitation training and achieves safe and effective rehabilitation results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-22
- Publication Date
- 2026-04-07
AI Technical Summary
In knee joint rehabilitation training, the lack of auxiliary training devices may lead to secondary knee joint injury and fatigue due to patients exerting force on their own.
A joint rehabilitation therapy device was designed, which includes a rehabilitation training chair, a drive mechanism and a leg fixation mechanism. It uses a speed-regulating motor to drive the crankshaft and transmission plate, and realizes the reciprocating rotation of the lower leg through the support plate, so as to avoid the patient exerting force on his own.
It effectively avoids secondary knee joint injury and patient fatigue. The speed adjustment of the motor ensures that the lower leg rotates appropriately and slowly, achieving safe rehabilitation training.
Smart Images

Figure CN224085649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of joint rehabilitation training auxiliary devices, and in particular to a joint rehabilitation therapy instrument. Background Technology
[0002] The knee joint is composed of the medial and lateral condyles of the femur, the medial and lateral condyles of the tibia, and the patella. It is the largest and most complex joint in the human body, and is also the most prone to injury.
[0003] When the human knee joint is damaged due to illness or accident, it can recover after treatment by a doctor. During the knee joint rehabilitation process, patients need to undergo rehabilitation training to restore the joint's previous flexibility.
[0004] However, during rehabilitation training, due to the lack of auxiliary training devices, most patients rely on the strength of their own thighs to gently rotate their lower legs to rotate their knee joints and achieve the purpose of exercising their knee joints. Before the knee joint has recovered, this method is very likely to cause secondary damage to the knee joint due to excessive force, and it is also easy to cause fatigue in patients. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a joint rehabilitation therapy device that can effectively avoid secondary damage to the knee joint and prevent patients from experiencing fatigue.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a joint rehabilitation therapy device, comprising a rehabilitation training chair, a drive mechanism, and a leg fixation mechanism. The drive mechanism includes a speed-regulating motor. Two sets of upright plates are symmetrically connected to the bottom of the rehabilitation training chair. The speed-regulating motor is fixedly installed on the front set of upright plates. A crankshaft is rotatably mounted on the two sets of upright plates, and the front end of the crankshaft is connected to the output end of the upright plate. Two sets of transmission plates are symmetrically mounted on the crankshaft. The leg fixation mechanism includes two sets of support plates. Two sets of limiting seats are symmetrically provided on the right side of the bottom of the rehabilitation training chair. The two sets of support plates are rotatably mounted on the two sets of limiting seats. Each set of support plates is provided with a hinge seat. The right ends of the two sets of transmission plates are respectively hinged to the two sets of hinge seats. Two sets of elastic bands are symmetrically connected to the inner sides of the two sets of support plates. Hooks are connected to the four sets of elastic bands. Two sets of hanging rings are symmetrically provided on the outer sides of the two sets of support plates.
[0008] Preferably, both sets of pallets are provided with a foot pedal mechanism. The foot pedal mechanism includes an extension plate. The bottom end of the pallet is provided with a sliding groove. The extension plate is slidably installed on the pallet by cooperating with the sliding groove. The bottom end of the extension plate is connected to a pedal. Two sets of locking bolts are screwed onto the pallet. The ends of the two sets of locking bolts are tightened against the right end of the extension plate.
[0009] Preferably, the top end of the rehabilitation training chair is provided with two groups of armrests symmetrically in front and back.
[0010] Preferably, the outer wall of the two groups of armrests is fixedly sleeved with anti-skid handle sleeves.
[0011] Preferably, the chair leg of the rehabilitation training chair is sleeved with an anti-skid foot sleeve at the bottom.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: in use, initially the supporting plate is in a vertical state, the patient sits on the rehabilitation training chair, the leg is naturally bent to make the lower leg rest on the supporting plate, then the elastic band is pulled tight, the hook is hung and buckled on the hanging ring, the elastic band is used to bind and fix the lower leg, the speed regulating motor is started and the speed is adjusted, the speed regulating motor drives the crankshaft to rotate slowly, the crankshaft drives the transmission strip plate to reciprocating swing, so that the transmission strip plate drives the supporting plate to reciprocating rotate to the right, the limiting seat drives the lower leg to reciprocating rotate slightly, so as to realize the rehabilitation training treatment of the knee joint, the patient does not need to force the leg, the rotating speed of the speed regulating motor can be adjusted, the lower leg rotates appropriately and slowly, so that the secondary injury of the knee joint can be effectively avoided, and the fatigue of the patient can be avoided. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the axonometric structure schematic view of the utility model;
[0014] Figure 2 is the bottom axonometric structure schematic view of the utility model;
[0015] Figure 3 is the partial axonometric structure schematic view of the utility model;
[0016] Figure 4 is the axonometric structure schematic view of the leg fixing mechanism and the foot pedal mechanism in the utility model;
[0017] Marked in the drawing: 1, rehabilitation training chair; 2, speed regulating motor; 3, vertical plate; 4, crankshaft; 5, transmission strip plate; 6, limiting seat; 7, supporting plate; 8, hinged seat; 9, elastic band; 10, hook; 11, hanging ring; 12, extension plate; 13, pedal; 14, locking bolt; 15, armrest; 16, anti-skid handle sleeve; 17, anti-skid foot sleeve. DETAILED DESCRIPTION
[0018] The specific implementation of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.
[0019] EXAMPLE
[0020] Please refer to Figures 1-4The utility model discloses a joint rehabilitation therapeutic instrument, including rehabilitation training chair 1, the bottom symmetry of rehabilitation training chair 1 is connected with two groups of vertical board 3, and the fixed installation of speed regulation motor 2 is in the vertical board 3 of leaning forward one group, and the rotation of two groups of vertical board 3 is equipped with crankshaft 4, and the front end of crankshaft 4 is connected with the output end of vertical board 3, and the rotation of two groups of transmission strip 5 is equipped with on the symmetry of crankshaft 4, and the bottom right symmetry of rehabilitation training chair 1 is equipped with two groups of limit seat 6, and two groups of support plate 7 are respectively installed in two groups of limit seat 6, and the hinge seat 8 of two groups of support plate 7 is all equipped with, and the right end of two groups of transmission strip 5 is respectively hinged with two groups of hinge seat 8, and the inside symmetry of two groups of support plate 7 is connected with two groups of elastic band 9, and the hook 10 of four groups of elastic band 9 is all connected with, and the outside symmetry of two groups of support plate 7 is equipped with two groups of hanging ring 11, when using, initially support plate 7 is in vertical state, and the patient sits on rehabilitation training chair 1, and the leg is naturally curved and makes shank to be hung on support plate 7, then tightens elastic band 9, and the hook 10 is hung and buckled in hanging ring 11, makes elastic band 9 with shank part is tied and fixed, starts speed regulation motor 2 and adjusts the rotation speed, makes speed regulation motor 2 drive crankshaft 4 to rotate slowly, and crankshaft 4 drives transmission strip 5 to swing back and forth, to make transmission strip 5 drive support plate 7 to rotate back and forth to the right, and limit seat 6 drives shank to swing back and forth slightly, to realize the rehabilitation training treatment to knee joint, need not the patient's own leg force, and the rotation speed of speed regulation motor 2 can be adjusted, ensures that shank rotates properly, slowly, to effectively avoid the secondary injury of knee joint, avoids causing the fatigue feeling of patient.
[0021] The two groups of support plates 7 are all provided with a foot pedal mechanism, the foot pedal mechanism comprises an extension plate 12, a sliding groove is arranged on the bottom end of the support plate 7 and extends upwards, the extension plate 12 is slidably installed on the support plate 7 through cooperation with the sliding groove, a pedal 13 is connected to the bottom end of the extension plate 12, two groups of locking bolts 14 are screw-connected on the support plate 7, and the ends of the two groups of locking bolts 14 are in abutment with the right end of the extension plate 12; through the arrangement of the foot pedal mechanism, when the shank of the patient is placed, the length of the shank can be adjusted according to the length of the shank, the locking bolts 14 are loosened, then the extension plate 12 is slidably adjusted to adapt to the length of the shank, so that the feet of the patient can be placed on the pedal 13, and after adjustment, the locking bolts 14 are tightened to fix the position of the extension plate 12, then the patient can place the feet on the pedal 13, and the feet of the patient are prevented from being suspended.
[0022] The top end of the rehabilitation training chair 1 is symmetrically provided with two groups of handrails 15; through the arrangement of the handrails 15, the patient can hold the handrails 15 with hands, and the upper body can be kept stable.
[0023] The outer walls of the two groups of handrails 15 are both fixedly provided with anti-skid handle sleeves 16; through the arrangement of the anti-skid handle sleeves 16, the patient can be effectively prevented from slipping when holding the handrails 15.
[0024] The chair legs of the rehabilitation training chair 1 are each sleeved with an anti-skid foot sleeve 17.
[0025] The joint rehabilitation therapeutic apparatus of the utility model, its working principle, at the beginning, the supporting plate 7 is in vertical state, the patient sits on the rehabilitation training chair 1, and the leg is naturally bent to make the lower leg to be buckled on the supporting plate 7, then the elastic band 9 is pulled tight, the hook 10 is hung and buckled on the hanging ring 11, the elastic band 9 is fixed to the lower leg, the speed regulating motor 2 is started and the speed is adjusted, the speed regulating motor 2 drives the crankshaft 4 to rotate slowly, the crankshaft 4 drives the transmission strip plate 5 to swing back and forth, so that the transmission strip plate 5 drives the supporting plate 7 to swing back and forth to the right, and the limiting seat 6 drives the lower leg to swing back and forth slightly, so as to realize the rehabilitation training treatment of the knee joint, in addition, when the patient's lower leg is placed, the length of the lower leg can be adjusted according to the length of the lower leg, the locking bolt 14 is loosened, then the extension plate 12 is slid to adjust the extension amount, so as to adapt to the length of the lower leg, ensure that the foot can be stepped on the pedal 13, after adjustment, the locking bolt 14 is tightened, the extension plate 12 is fixed, then the patient can step on the pedal 13, and the foot is avoided to be suspended.
[0026] The joint rehabilitation therapeutic apparatus of the utility model, its installation mode, connection mode or setting mode are all common mechanical modes, as long as the beneficial effects can be achieved, and the implementation can be carried out, the speed regulating motor of the joint rehabilitation therapeutic apparatus of the utility model is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual.
[0027] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, on the premise of not departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.
Claims
1. A joint rehabilitation therapy device, comprising a rehabilitation training chair (1), characterized in that, It also includes a drive mechanism and a leg fixing mechanism; The drive mechanism includes a speed-regulating motor (2). Two sets of upright plates (3) are symmetrically connected to the bottom of the rehabilitation training chair (1). The speed-regulating motor (2) is fixedly installed on the front set of upright plates (3). A crankshaft (4) is rotatably mounted on the two sets of upright plates (3), and the front end of the crankshaft (4) is connected to the output end of the upright plate (3). Two sets of transmission strips (5) are symmetrically mounted on the crankshaft (4). The leg fixation mechanism includes two sets of support plates (7). Two sets of limiting seats (6) are symmetrically provided on the right side of the bottom of the rehabilitation training chair (1). The two sets of support plates (7) are rotatably installed on the two sets of limiting seats (6). The two sets of support plates (7) are provided with hinge seats (8). The right ends of the two sets of transmission plates (5) are respectively hinged to the two sets of hinge seats (8). The inner sides of the two sets of support plates (7) are symmetrically connected with two sets of elastic bands (9). The four sets of elastic bands (9) are all connected with hooks (10). The outer sides of the two sets of support plates (7) are symmetrically provided with two sets of hanging rings (11).
2. The joint rehabilitation therapy device as described in claim 1, characterized in that, Both sets of trays (7) are equipped with foot pedal mechanisms. The foot pedal mechanism includes an extension plate (12). The bottom end of the tray (7) is provided with a sliding groove. The extension plate (12) is slidably installed on the tray (7) by cooperating with the sliding groove. The bottom end of the extension plate (12) is connected to a pedal (13). Two sets of locking bolts (14) are screwed on the tray (7). The ends of the two sets of locking bolts (14) are pressed against the right end of the extension plate (12).
3. The joint rehabilitation therapy device as described in claim 2, characterized in that, The rehabilitation training chair (1) has two sets of armrests (15) symmetrically arranged at the top front and back.
4. A joint rehabilitation therapy device as described in claim 3, characterized in that, Both sets of handrails (15) are fixedly fitted with anti-slip handle covers (16) on their outer walls.
5. A joint rehabilitation therapy device as described in claim 4, characterized in that, The bottom of the legs of the rehabilitation training chair (1) are all fitted with anti-slip foot covers (17).