Knee joint nursing seat for rehabilitation training

Abstract

The utility model relates to the field of rehabilitation training equipment, in particular to a knee joint nursing seat for rehabilitation training. Comprising a seat plate and a back plate which are fixedly connected together, the seat plate and the back plate are fixedly connected through two inverted-L-shaped connecting rods, leg pressing assemblies are slidably arranged on the vertical parts of the connecting rods, a support is fixed to the lower end of the seat plate, shank driving assemblies are rotationally connected to the left end and the right end of the front side of the support, a supporting plate is fixed in the support, and a double-shaft motor is fixed to the supporting plate; turntables are concentrically fixed to output shafts of the double-shaft motors, sleeves are eccentrically and rotationally connected to the turntables, telescopic rods are slidably connected into the sleeves, the telescopic rods are rotationally connected with shank driving assemblies on one sides of the telescopic rods, and gravity driving assemblies are arranged on the support and connected with the shank driving assemblies. After the double-shaft motor is started, shanks of a patient can move in the moving process of the carrier rollers, and knee joints of the two legs of the patient can be assisted to bend.

Description

Technical Field

[0001] The utility model relates to the field of rehabilitation training equipment, in particular to a knee joint care chair used for rehabilitation training. Background Art

[0002] In recent years, the number of people suffering from knee pain has gradually increased. In severe cases, it affects normal walking and requires surgery in the hospital. Some patients need to replace metal prostheses to relieve pain. At present, a series of rehabilitation training is usually adopted, that is, rehabilitation exercise care is used to prevent joint stiffness, muscle atrophy and adhesions within various tissue levels, while gradually increasing the patient's joint mobility. For rehabilitation care of the knee joint, it is generally recovered by the patient's own exercise. However, for patients with severe knee joint damage, it is difficult to recover on their own and they need the help of equipment.

[0003] After knee replacement surgery, knee flexor contracture can cause difficulty in knee extension. At the same time, joint capsule adhesion is also a reason why the calf cannot be straightened. After knee replacement surgery, if the patient does not exercise for a long time, it will lead to poor local blood circulation, resulting in knee stiffness. Therefore, after knee replacement surgery, excessive use of the knee joint should be avoided. In addition, functional exercises of the knee joint are required, such as flexion, extension, limb raising and other functional exercises. In order to improve the recovery effect of the patient's knee joint, equipment can be used to assist the patient in calf straightening training. During the calf straightening rehabilitation training, the patient needs to keep the calf straight for a certain period of time, and the patient's calf straightening training needs to be gradual. During the patient's rehabilitation training, the calf needs to be kept straight repeatedly.

[0004] In the prior art, a patent document with application number CN202222034232.1 and titled "A Joint Surgery Nursing Chair" discloses a nursing chair that can assist patients in rehabilitation training of their knee joints. When in use, the patient sits on the chair frame, then places the left leg on the rotating plate on the right, and the right leg on the rotating plate on the left. After the controller is turned on by the right hand, the motor output end rotates clockwise, thereby driving the connecting shaft, the connecting rod, and the slider to rotate horizontally and synchronously around the axis of the motor output end. The slider drives the slide rail fixedly connected to the right rack to move back and forth in the horizontal direction, the right rack drives the right wedge plate to slide forward and backward along the right wedge groove, and the right rack drives the gear to rotate forward and backward, so that the left rack and the right rack always move in opposite directions, and finally drive the two support rods to always move horizontally and reciprocate in opposite directions. The support rod rotates clockwise and then counterclockwise on the chair frame against the rotating plate, thereby achieving the effect of raising one side and lowering the other side. The technical solution of this patent can enable the patient's calf to move, thereby enabling the patient's knee joints to bend, but it cannot assist the patient in performing rehabilitation training for straightening the calf. Utility Model Content

[0005] The technical problem to be solved by the utility model is a knee joint care chair that can enable the patient's knee joint to bend and move. At the same time, it can assist the patient in rehabilitation training for calf straightening. In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A knee joint care chair for rehabilitation training comprises a seat plate and a back plate fixedly connected together, the seat plate and the back plate are fixedly connected by two inverted L-shaped connecting rods, a leg pressing assembly is slidably arranged on the vertical part of the connecting rod, a bracket is fixed at the lower end of the seat plate, the left and right ends of the front side of the bracket are rotatably connected with calf drive assemblies, a support plate is fixed in the bracket, a double-axis motor is fixed on the support plate, a turntable is concentrically fixed on the output shaft of the double-axis motor, a sleeve is eccentrically rotatably connected to the turntable, a telescopic rod is slidably connected in the sleeve, the telescopic rod is rotatably connected to the calf drive assembly on one side, a gravity drive assembly is arranged on the bracket, and the gravity drive assembly is connected to the calf drive assembly.

[0007] Specifically, the leg pressing assembly includes a sliding sleeve, which is arranged on the vertical part of the connecting rod. The sliding sleeve can rotate on the vertical part of the connecting rod. A locking handle is threadedly connected to the sliding sleeve. The locking handle can be tightly pressed against the vertical part of the connecting rod and fix the sliding sleeve on the vertical part of the connecting rod. A pressure plate is fixed on the sliding sleeve.

[0008] Specifically, the calf drive assembly includes an ear plate fixed on the bracket, the ear plate is rotatably connected to a rotating shaft, a swing rod is fixed on the rotating shaft, a roller is rotatably connected to the swing rod, and the telescopic rod is rotatably connected to the swing rod.

[0009] Specifically, the gravity drive assembly includes a pulley fixed on a rotating shaft, one end of a pull rope is fixed on the pulley, a portion of the pull rope is wrapped around the pulley, a guide wheel is rotatably connected to a bracket on the rear side of the pulley, the other end of the pull rope passes around the guide wheel and is fixedly connected to a counterweight basket, a plurality of counterweight blocks are placed in the counterweight basket, a vertical electric telescopic cylinder is fixed on the bracket below the counterweight basket, a support plate is fixed on the telescopic end of the electric telescopic cylinder, and the support plate supports the counterweight basket.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. After the dual-axis motor of the utility model is started, the dual-axis motor can drive the swing arm to swing through the sleeve and the telescopic rod, and the swing arm drives the roller to move during the swinging process. During the movement of the roller, the patient's calf can be moved, and the knee joints of the patient's legs can be flexed.

[0012] 2. Use the leg-pressing assembly to hold down the patient's thigh, start the electric telescopic cylinder, and move the support plate downward. Under the action of gravity, the counterweight block and the counterweight basket can drive the roller to move through the pull rope, pulley, rotating shaft and rocker arm. During the movement of the roller, the patient can be assisted in straightening the calf.

[0013] 3. The number of weight blocks in the weight basket can be changed, thereby changing the thrust of the roller on the patient's calf during the process of the device assisting the patient in performing calf straightening exercises, and can be suitable for patients in different recovery conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] Figure 2 for Figure 1 The names of the parts in the attached figure are:

[0016] 1 Seat board

[0017] 2 Connecting rod

[0018] 3 Sliding sleeve

[0019] 4 Locking handle

[0020] 5 Pressure plate

[0021] 6 Back panel

[0022] 7 Bracket

[0023] 8 Ear Plate

[0024] 9 Reels

[0025] 10 Swing rod

[0026] 11 Roller

[0027] 12 boards

[0028] 13 Dual-axis motor

[0029] 14 Turntable

[0030] 15 Casing

[0031] 151 Telescopic rod

[0032] 16 Rope pulley

[0033] 17 Guide wheel

[0034] 18 Pull rope

[0035] 19 Weight basket

[0036] 20 Counterweight

[0037] 21 Pallet

[0038] 22 Electric telescopic cylinder. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] Embodiment 1:

[0041] Reference Figure 1-Figure 2 As shown, the knee joint care chair used for rehabilitation training includes a seat plate 1 and a back plate 6 fixedly connected together.

[0042] The seat plate 1 and the back plate 6 are fixedly connected by two inverted L-shaped connecting rods 2, and a leg pressing assembly is slidably arranged on the vertical portion of the connecting rod 2.

[0043] The leg-pressing assembly includes a sliding sleeve 3, which is arranged on the vertical part of the connecting rod 2. The sliding sleeve 3 can rotate on the vertical part of the connecting rod 2. A locking handle 4 is threadedly connected to the sliding sleeve 3. The locking handle 4 can be tightly pressed against the vertical part of the connecting rod 2 and fix the sliding sleeve 3 on the vertical part of the connecting rod 2. A pressure plate 5 is fixed on the sliding sleeve 3.

[0044] A bracket 7 is fixed to the lower end of the seat plate 1, and both left and right ends of the front side of the bracket 7 are rotatably connected with calf drive components.

[0045] The calf drive assembly includes an ear plate 8 fixed on a bracket 7, the ear plate 8 is rotatably connected to a rotating shaft 9, a swing rod 10 is fixed on the rotating shaft 9, a roller 11 is rotatably connected to the swing rod 10, and the rotating shaft 9 is parallel to the roller 11.

[0046] A support plate 12 is fixed in the bracket 7, a dual-axis motor 13 is fixed on the support plate 12, a turntable 14 is concentrically fixed on the output shaft of the dual-axis motor 13, a sleeve 15 is eccentrically connected to the turntable 14, a telescopic rod 151 is slidably connected in the sleeve 15, and the telescopic rod 151 is rotatably connected to the swing rod 10.

[0047] A gravity drive assembly is provided on the bracket 7, and the gravity drive assembly is connected to the calf drive assembly. The gravity drive assembly includes a rope wheel 16 fixed on the rotating shaft 9, one end of a pull rope 18 is fixed on the rope wheel 16, and the pull rope 18 is partially wound on the rope wheel 16. A guide wheel 17 is rotatably connected to the bracket 7 on the rear side of the rope wheel 16, and the other end of the pull rope 18 passes around the guide wheel 17 and is fixedly connected to a counterweight basket 19. A plurality of counterweight blocks 20 are placed in the counterweight basket 19. A vertical electric telescopic cylinder 22 is fixed on the bracket 7 below the counterweight basket 19, and a support plate 21 is fixed on the telescopic end of the electric telescopic cylinder 22, and the support plate 21 supports the counterweight basket 19.

[0048] A switch may be provided on the connecting rod 2, and the switch on the connecting rod 2 controls the electric telescopic cylinder 22 on one side thereof.

[0049] When the patient needs to be assisted in knee flexion, the electric telescopic cylinder 22 is activated, so that the support plate 21 drives the weight basket 19 upward and relaxes the pull rope 18. The patient sits on the seat plate 1, so that the roller 11 contacts the back of the patient's calf on one side.

[0050] Then the dual-axis motor 13 is started, and the dual-axis motor 13 drives the turntable 14 to rotate. During the rotation of the turntable 14, when the connection point between the sleeve 15 and the turntable 14 moves toward the swing rod 10, the turntable 14 drives the lower end of the swing rod 10 to swing away from the bracket 7 through the sleeve 15 and the telescopic rod 151. While the lower end of the swing rod 10 swings away from the bracket 7, the roller 11 drives the patient's lower leg to swing. When the connection point between the sleeve 15 and the turntable 14 moves toward the swing rod 10, since the telescopic rod 151 reaches the maximum retraction limit in the sleeve 15, the telescopic rod 151 will no longer retract into the sleeve 15.

[0051] When the connection point between the sleeve 15 and the turntable 14 moves away from the swing rod 10, the back of the patient's calf always presses the roller 11 under the gravity of the patient's calf. During the movement of the connection point between the sleeve 15 and the turntable 14 away from the swing rod 10, the patient's calf gradually returns to its original position. Under the squeezing effect of the patient's calf on the roller 11, when the connection point between the sleeve 15 and the turntable 14 moves away from the swing rod 10, the telescopic rod 151 and the sleeve 15 do not move relative to each other.

[0052] When the dual-axis motor 13 drives the turntable 14 to rotate, the swing arm 10 can swing the patient's calf through the roller 11, thereby assisting the patient's knee joint flexion movement.

[0053] When assisting the patient to perform calf straightening exercises, loosen the locking handle 4 to allow the sliding sleeve 3 and the pressing plate 5 to move downward, rotate the sliding sleeve 3 and the pressing plate 5 to allow the pressing plate 5 to squeeze the patient's thigh, and then use the locking handle 4 to lock and fix the sliding sleeve 3 on the vertical part of the connecting rod 2.

[0054] Start the electric telescopic cylinder 22 to make the counterweight basket 19 and the counterweight block 20 move downward. During the downward movement of the counterweight basket 19 and the counterweight block 20, the pull rope 18 causes the rope pulley 16 to rotate, and during the rotation of the rope pulley 16, the roller 11 is driven to swing through the rotating shaft 9 and the swing rod 10. At the same time, the telescopic rod 151 extends out of the sleeve 15. During the swinging of the roller 11, the patient's thigh is squeezed and stabilized by the pressure plate 5, and the patient's calf can tend to straighten. When the counterweight basket 19 is separated from the support plate 21, under the action of the gravity of the counterweight basket 19 and the counterweight block 20, the roller 11 can maintain the thrust on the patient's calf. The number of counterweight blocks 20 in the counterweight basket 19 can be changed, thereby changing the thrust of the roller 11 on the calf when assisting the patient in the calf straightening exercise. It can be suitable for patients with different recovery conditions.

[0055] After the roller 11 applies thrust to the patient's calf for a certain period of time, the electric telescopic cylinder 22 can be started, so that the support plate 21 drives the weight basket 19 and the weight block 20 upward. In the process of the support plate 21 driving the weight basket 19 and the weight block 20 upward, under the gravity of the patient's calf, the roller 11 moves toward the bracket 7, and the rope wheel 16 winds the pull rope 18. The electric telescopic cylinder 22 can intermittently make the weight basket 19 and the weight block 20 go down, so that the roller 11 intermittently assists the patient's calf to straighten.

[0056] Embodiment 2:

[0057] Based on Example 1, refer to Figure 1 and Figure 2 As shown, sponge pads are fixed on the seat plate 1 and the back plate 6.

[0058] By providing the sponge pad, the comfort of the patient sitting on the seat 1 and leaning on the back plate 6 can be increased.

[0059] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0060] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0061] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A knee joint care chair for rehabilitation training, comprising a seat plate (1) and a back plate (6) fixedly connected together, wherein the seat plate (1) and the back plate (6) are fixedly connected by two inverted L-shaped connecting rods (2), characterized in that: A leg pressing assembly is slidably arranged on the vertical part of the connecting rod (2); a bracket (7) is fixed at the lower end of the seat plate (1); both left and right ends of the front side of the bracket (7) are rotatably connected with a calf driving assembly; a support plate (12) is fixed inside the bracket (7); a double-axis motor (13) is fixed on the support plate (12); a turntable (14) is concentrically fixed on the output shaft of the double-axis motor (13); a sleeve (15) is eccentrically rotatably connected to the turntable (14); a telescopic rod (151) is slidably connected inside the sleeve (15); the telescopic rod (151) is rotatably connected to a calf driving assembly on one side thereof; a gravity driving assembly is arranged on the bracket (7); and the gravity driving assembly is connected to the calf driving assembly.

2. The knee joint care chair for rehabilitation training according to claim 1, characterized in that: The leg-pressing assembly comprises a sliding sleeve (3), the sliding sleeve (3) being slidingly mounted on the vertical portion of the connecting rod (2), the sliding sleeve (3) being able to rotate on the vertical portion of the connecting rod (2), a locking handle (4) being threadedly connected to the sliding sleeve (3), the locking handle (4) being able to press against the vertical portion of the connecting rod (2) and fix the sliding sleeve (3) on the vertical portion of the connecting rod (2), and a pressing plate (5) being fixed on the sliding sleeve (3).

3. The knee joint care chair for rehabilitation training according to claim 1, characterized in that: The calf drive assembly comprises an ear plate (8) fixed on a bracket (7), the ear plate (8) is rotatably connected to a rotating shaft (9), a swing rod (10) is fixed on the rotating shaft (9), a roller (11) is rotatably connected to the swing rod (10), and a telescopic rod (151) is rotatably connected to the swing rod (10).

4. The knee joint care chair for rehabilitation training according to claim 3, characterized in that: The gravity drive assembly comprises a rope wheel (16) fixed on a rotating shaft (9), one end of a pull rope (18) is fixed on the rope wheel (16), a portion of the pull rope (18) is wound around the rope wheel (16), a guide wheel (17) is rotatably connected to a bracket (7) on the rear side of the rope wheel (16), the other end of the pull rope (18) passes around the guide wheel (17) and is fixedly connected to a counterweight basket (19), a plurality of counterweight blocks (20) are placed in the counterweight basket (19), a vertical electric telescopic cylinder (22) is fixed on the bracket (7) below the counterweight basket (19), a support plate (21) is fixed on the telescopic end of the electric telescopic cylinder (22), and the support plate (21) supports the counterweight basket (19).

5. The knee joint care chair for rehabilitation training according to claim 1, characterized in that: Sponge pads are fixed on the seat plate (1) and the back plate (6).

6. The knee joint care chair for rehabilitation training according to claim 3, characterized in that: The rotating shaft (9) is parallel to the supporting roller (11).

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