Knee joint rehabilitation training chair capable of stably fixing legs

Abstract

The knee joint rehabilitation training chair capable of stably fixing the legs comprises a chair seat, a chair back, chair legs, a thigh fixing assembly, a shank bending and stretching assembly and a driving unit, the chair back is rotationally arranged on the rear side of the chair seat, the chair legs are arranged on the front side and the rear side of the bottom of the chair seat, the thigh fixing assembly is arranged above the front side of the chair seat, and the shank bending and stretching assembly is arranged above the front side of the chair seat. The shank bending and stretching assembly is rotationally arranged below the front side of the chair seat, the driving unit is arranged at the bottom of the chair seat, the rear end of the driving unit is rotationally connected with the bottom of the chair seat, and the front end of the driving unit is rotationally connected with the shank bending and stretching assembly. The thigh pressing plate is movably connected through the supporting plates on the two sides and is locked through the first locking bolt, when the leg fixing device is used, a patient places the thigh between the two supporting plates, the thigh is pressed on the chair seat through the thigh pressing plate, in this way, the thigh cannot be driven to move when the shank swings, and the patient feels comfortable. Therefore, flexion and extension training of the knee joint can be achieved more stably, and the rehabilitation training effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to knee joint rehabilitation training equipment technical field, especially in a kind of knee joint rehabilitation training chair of stable fixation leg. BACKGROUND

[0002] After the injury or the disease of leg, knee joint etc. part, in order to restore joint and muscle function, patient needs to rely on rehabilitation training equipment to carry out upper limb flexion and extension exercise. In prior art, such as the knee joint rehabilitation training chair disclosed in patent CN213607956U, when using, patient sits on seat, foot is placed on foot support plate, electric telescopic rod drives calf support plate and foot support plate swing, to realize the rehabilitation training of knee joint.

[0003] But the above-mentioned device when using, femur will move on seat plate, position cannot be fixed, femur movement will drive calf movement, so that knee joint flexion and extension is not in place, further influence the effect of rehabilitation training, thus there is to be improved. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model discloses a kind of knee joint rehabilitation training chair of stable fixation leg, including chair seat, chair back, chair leg, thigh fixed component, calf flexion and extension component and drive unit, the chair back is rotationally arranged at the rear side of chair seat, the chair leg is set at the front and rear sides of the bottom of chair seat, the thigh fixed component is set on the top of the front side of chair seat, the calf flexion and extension component is rotationally arranged at the lower side of the front side of chair seat, the drive unit is set at the bottom of chair seat, and the rear end of the drive unit is rotationally connected with the bottom of chair seat, front end is rotationally connected with calf flexion and extension component, the thigh fixed component includes support plate, thigh pressing plate and first locking bolt, the front side surface of chair seat is equipped with two rotating struts, each rotating strut is rotationally connected with a support plate, the thigh pressing plate is arranged between the support plate of both sides and is adjustably connected with support plate by first locking bolt.

[0005] Further, first adjusting groove is formed on the support plate along its length direction, first connecting block is arranged on the both sides of thigh pressing plate, and first locking bolt is threadedly connected with first connecting block through first adjusting groove.

[0006] Further, the calf flexion and extension component includes connecting plate, calf supporting plate and second locking bolt, the bottom of the front side of chair seat is rotationally connected with a connecting plate at the position corresponding to two support plates, the calf supporting plate is arranged between two connecting plates and is locked by second locking bolt.

[0007] Further, second adjusting groove is formed on the connecting plate along its length direction, second connecting block is arranged on the both sides of calf supporting plate, and second locking bolt is threadedly connected with second connecting block through second adjusting groove.

[0008] Further, the rear end of the driving unit is rotationally connected with the connecting rod arranged at the bottom of the seat, and the front end is rotationally connected with the supporting rod arranged between the two connecting plates.

[0009] Further, the rear side of the seat is provided with a first rotation supporting plate, the bottom of the backrest is provided with a second rotation supporting plate, the first rotation supporting plate and the second rotation supporting plate are rotationally connected through a rotation shaft, the first rotation supporting plate is provided with an arc-shaped slot at the center of the rotation shaft, and the outer side of the first rotation supporting plate is further provided with a third locking bolt which is threadedly connected with the second rotation supporting plate through the arc-shaped slot.

[0010] Further, the bottom of the seat is provided with one plug-in block at each of the four corners, and the top of the chair leg is provided with a plug-in slot, and the plug-in block is plugged into the plug-in slot.

[0011] Further, one side or both sides of the seat are provided with armrests.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses through the movable connection of the two sides' supporting plates to the thigh pressing plate, and through the locking of the first locking bolt, when using, the patient places the thigh between the two supporting plates, and the thigh is pressed on the seat through the thigh pressing plate, so that the small leg does not drive the thigh to move when swinging, thereby more stably realizing the flexion and extension training of the knee joint, and achieving the rehabilitation training effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can also be obtained according to these drawings without the creative labor.

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the overall structure side view of the utility model;

[0017] Figure 3 It is the overall structure side view of the utility model; Figure 2 It is the local structure enlarged view of C in the utility model;

[0018] Figure 4 It is the connection schematic view of the seat and the chair leg of the utility model;

[0019] Figure 5 It is the local structure enlarged view of A in the utility model.

[0020] Figure 6 It is partial structure of the utility model at B place enlarged view.

[0021] Reference signs:

[0022] 1-chair seat, 11-first rotating support plate, 12-rotating shaft, 13-arc-shaped slot, 14-third locking bolt, 15-insertion block, 16-rotating support rod, 2-chair back, 21-second rotating support plate, 3-chair leg, 31-insertion slot, 4-thigh fixing assembly, 41-supporting plate, 42-thigh pressing plate, 43-first locking bolt, 44-first adjusting slot, 45-first connecting block, 5-calf flexion and extension assembly, 51-connecting plate, 52-calf supporting plate, 53-second locking bolt, 54-second adjusting slot, 55-second connecting block, 56-supporting rod, 6-driving unit, 7-armrest, 8-connecting rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0025] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features.

[0026] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "set", "connected" and the like should be understood in a broad sense. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0027] For example, Figures 1-2As shown, the knee joint rehabilitation training chair with stably fixed legs in the embodiment includes a seat 1, a back 2, legs 3, a thigh fixing assembly 4, a calf flexion and extension assembly 5, and a driving unit 6. The back 2 is rotationally arranged at the rear side of the seat 1. Specifically, as shown in Figure 3 As shown, the rear side of the seat 1 is provided with a first rotating support plate 11, and the bottom of the back 2 is provided with a second rotating support plate 21. The first rotating support plate 11 and the second rotating support plate 21 are rotationally connected through a rotating shaft 12. The first rotating support plate 11 is provided with an arc-shaped slot 13 at the center of the rotating shaft 12. The first rotating support plate 11 is further provided with a third locking bolt 14 outside. The third locking bolt 14 is threadedly connected with the second rotating support plate 21 through the arc-shaped slot 13. Through the arrangement of the arc-shaped slot 13, the back 2 can be flipped forward and backward, and the third locking bolt 14 is locked to adjust the angle of the back 2. The back 2 can also be completely folded up for storage and transportation.

[0028] One side or both sides of the seat 1 are provided with armrests 7 for the convenience of patients to get on and off the seat.

[0029] The legs 3 are arranged at the front and rear sides of the bottom of the seat 1. As shown, Figure 4 As shown, the bottom of the seat 1 is provided with one insertion block 15 at each corner, and the top of the leg 3 is provided with an insertion slot 31. The insertion block 15 is inserted into the insertion slot 31. In this way, the installation and disassembly of the leg 3 can be achieved, thereby facilitating the storage and transportation of the training chair.

[0030] The thigh fixing assembly 4 is arranged above the front side of the seat 1. As shown, Figure 5 As shown, the thigh fixing assembly 4 includes a support plate 41, a thigh pressing plate 42, and a first locking bolt 43. Two rotating support rods 16 are arranged on the front side surface of the seat 1 at intervals. Each rotating support rod 16 is rotationally connected with one support plate 41. The thigh pressing plate 42 is arranged between the two support plates 41 and is adjustably connected with the support plates 41 through the first locking bolt 43. Specifically, the support plate 41 is provided with a first adjusting slot 44 along the length direction thereof. The two sides of the thigh pressing plate 42 are provided with first connecting blocks 45. The first locking bolt 43 is threadedly connected with the first connecting blocks 45 through the first adjusting slot 44.

[0031] The calf flexion and extension assembly 5 is rotationally arranged below the front side of the seat 1. As shown, Figure 6 As shown, the calf flexion and extension assembly 5 includes a connecting plate 51, a calf supporting plate 52, and a second locking bolt 53. The front side bottom of the seat 2 is rotationally connected with one connecting plate 51 at a position corresponding to each of the two support plates 41. The calf supporting plate 52 is arranged between the two connecting plates 51 and is locked through the second locking bolt 53. Specifically, the connecting plate 51 is provided with a second adjusting slot 54 along the length direction thereof. The two sides of the calf supporting plate 52 are provided with second connecting blocks 55. The second locking bolt 53 is threadedly connected with the second connecting blocks 55 through the second adjusting slot 54.

[0032] The driving unit 6 is arranged at the bottom of the seat 1, and the rear end of the driving unit 6 is rotatably connected with the connecting rod 8 arranged at the bottom of the seat 1, and the front end is rotatably connected with the supporting rod 56 arranged between the two connecting plates 51. The driving unit 6 can adopt the driving device commonly used in the art, such as an electric push rod, a linear motor, an air cylinder, a hydraulic cylinder, etc.

[0033] When the training chair is used, the angle of the backrest 2 is adjusted, and the thigh fixing assembly 4 is opened. The patient first places one leg on the seat 1, and makes the thigh between the two supporting plates 41, then supports up the two supporting plates 41, adjusts the position of the thigh pressing plate 42, and locks it through the first locking bolt 43, so that the thigh pressing plate 42 is pressed above the thigh. In this way, the thigh can be stably fixed on the seat 1, and will not easily move during training.

[0034] The driving unit 6 is started to drive the small leg supporting plate 52 to swing forward and backward, and then the flexion and extension training of the knee joint is realized, so as to achieve the rehabilitation training effect.

[0035] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art; when the combination of technical solutions appears contradictory or unachievable, it shall be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

Claims

1. A knee joint rehabilitation training chair that can stably fix the leg, characterized in that: The utility model provides a chair, including chair seat, chair back, chair leg, thigh fixing assembly, small leg flexion and extension assembly and drive unit, chair back is rotationally arranged at the back side of chair seat, chair leg is arranged at the front and back sides of the bottom of chair seat, thigh fixing assembly is arranged above the front side of chair seat, small leg flexion and extension assembly is rotationally arranged below the front side of chair seat, drive unit is arranged at the bottom of chair seat, and the rear end of drive unit is rotationally connected with the bottom of chair seat, and the front end is rotationally connected with small leg flexion and extension assembly, thigh fixing assembly includes support plate, thigh pressing plate and first locking bolt, the front side surface of chair seat is equipped with two rotating support rods, and each rotating support rod is rotationally connected with a support plate, thigh pressing plate is arranged between the support plates of both sides and is adjustably connected with the support plate through first locking bolt.

2. The knee rehabilitation chair with stably fixed legs according to claim 1, characterized in that: First adjusting groove is formed on the support plate along the length direction, first connecting block is arranged on the both sides of thigh pressing plate, and first locking bolt is screw connected with first connecting block through first adjusting groove.

3. The stable fixable leg knee rehabilitation chair according to claim 1, characterized in that: Small leg flexion and extension assembly includes connecting plate, small leg supporting plate and second locking bolt, the bottom of chair seat is rotationally connected with connecting plate at the position corresponding with two support plates, small leg supporting plate is arranged between two connecting plates and is locked through second locking bolt.

4. The stable fixable leg knee rehabilitation chair according to claim 3, characterized in that: Second adjusting groove is formed on the connecting plate along the length direction, second connecting block is arranged on the both sides of small leg supporting plate, and second locking bolt is screw connected with second connecting block through second adjusting groove.

5. The stable fixable leg knee rehabilitation chair according to claim 1, characterized in that: The rear end of drive unit is rotationally connected with connecting rod arranged at the bottom of chair seat, and the front end is rotationally connected with support rod arranged between two connecting plates.

6. The stable fixable leg knee rehabilitation chair according to claim 1, characterized in that: The rear side of chair seat is equipped with first rotating support plate, the bottom of chair back is equipped with second rotating support plate, the first rotating support plate and the second rotating support plate are rotationally connected through a rotating shaft, the first rotating support plate is equipped with an arc-shaped groove with the rotating shaft as the center, the first rotating support plate is further equipped with a third locking bolt outside, and the third locking bolt is screw connected with the second rotating support plate through the arc-shaped groove.

7. The stable fixable leg knee rehabilitation chair according to claim 1, characterized in that: One inserting block is arranged at each corner of the bottom of chair seat, and the top of chair leg is equipped with an inserting groove, and the inserting block is inserted in the inserting groove.

8. The stable fixable leg knee rehabilitation chair according to claim 1, characterized in that: One side or both sides of chair seat are equipped with armrests.

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