Adjustable knee joint rehabilitation training device

Abstract

The utility model relates to the technical field of knee joint rehabilitation training devices, and discloses an adjustable knee joint rehabilitation training device which comprises a bottom plate, the top face of the bottom plate is rotationally connected with a first supporting plate, the rear side of the first supporting plate is rotationally connected with a second supporting plate, and adjusting assemblies are arranged on the bottom face of the first supporting plate and the bottom face of the second supporting plate. The adjusting assembly comprises a jacking frame arranged on the top face of the bottom plate. The jacking frame is driven by the threaded rod to jack the first supporting plate, so that the included angle between the first supporting plate and the bottom plate is changed, the knee bending requirement of a patient is met, the square rod rotates synchronously while the threaded rod rotates, the lead screw is driven to rotate, and therefore the telescopic strip is driven to ascend and descend; when the jacking frame moves front and back to adjust the included angle between the first supporting plate and the bottom plate, the telescopic strips synchronously ascend and descend to adjust the supporting height of the second supporting plate, so that the second supporting plate is always kept parallel to the bottom plate, plane supporting of the shanks of a patient is guaranteed, and the comfort of the patient is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of knee joint rehabilitation trainers, in particular to an adjustable knee joint rehabilitation trainer. Background Art

[0002] The quadriceps femoris is an important muscle for maintaining the walking ability and good gait of the human body and is a strong extensor of the knee joint. After hip and knee joint surgeries, if the quadriceps femoris is not exercised in a timely or early manner, the quadriceps femoris is prone to atrophy, resulting in weak and unsteady walking or walking imbalance in the human body, affecting the walking ability of the human body; in addition, after hip and knee joint surgeries, if knee flexion and hip flexion training is not carried out in a timely manner, it is easy to cause a stiff knee and a stiff hip, affecting the surgical effect and the quality of life of the patient; moreover, due to the trauma of lower limb surgery, blood circulation is not smooth, and lower limb swelling is likely to occur.

[0003] An existing adjustable hip and knee joint rehabilitation trainer (Publication No.: CN221286819U) has at least the following drawbacks: The device adjusts the angle of supporting the patient's leg by adjusting the positions of two supporting members below the first support plate clamped inside the adjustment groove. However, this adjustment method is difficult to operate when the patient's leg is placed on the device, and the patient's leg can only be temporarily put down, and then put back after the adjustment is completed. Not only is the adjustment speed slow, but moving the patient's leg may also cause pain to the patient. Therefore, the present utility model is proposed. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the drawbacks existing in the prior art, and to propose an adjustable knee joint rehabilitation trainer.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solution:

[0006] An adjustable knee joint rehabilitation trainer, including a bottom plate, the top surface of the bottom plate is rotatably connected with a first support plate, the rear side of the first support plate is rotatably connected with a second support plate, and an adjustment component is arranged on the bottom surfaces of the first support plate and the second support plate. The adjustment component includes a jacking frame arranged on the top surface of the bottom plate, a connecting plate is fixed to the rear side of the jacking frame, a telescopic cylinder is fixed to the rear end of the connecting plate, and a telescopic strip is slidably inserted inside the telescopic cylinder.

[0007] As a further solution of the present utility model, a rotating shaft is rotatably connected to the inside of the telescopic cylinder near the bottom surface, a driving bevel gear is fixed to the outer wall of the rotating shaft, a fixing plate is fixed to the inside of the telescopic cylinder, a lead screw is rotatably connected to the inside of the fixing plate, the lead screw is threadedly connected to the bottom surface of the telescopic strip, a driven bevel gear is fixed to the bottom end of the lead screw, and the driving bevel gear is engaged with the driven bevel gear.

[0008] As a further solution of the present utility model, a square rod is rotatably connected to the top surface of the bottom plate, a threaded rod is fixed to the front end of the square rod, the square rod is slidably arranged inside the rotating shaft, and the threaded rod is threadedly connected to the jacking frame.

[0009] As a further solution of the present utility model, two first rubber rollers are rotatably connected to both the top surface and the bottom surface of the jacking frame, the four first rubber rollers are respectively abutted against the top surface of the bottom plate and the bottom surface of the first support plate, the top end of the telescopic strip is rotatably connected to a second rubber roller, and the second rubber roller is abutted against the bottom surface of the second support plate.

[0010] As a further solution of the present utility model, two first limiting rods are fixed to the top surface of the bottom plate, the jacking frame is slidably arranged on the outer wall of the first limiting rods, a second limiting rod is fixed to the top surface of the fixing plate, and the top end of the second limiting rod is slidably inserted into the bottom surface of the telescopic strip.

[0011] As a further solution of the present utility model, first limiting plates are fixed to both sides close to the top surface of the first support plate, and second limiting plates are fixed to both sides close to the top surface of the second support plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] By rotating the threaded rod and the square rod rotates, the threaded rod drives the jacking frame to move forward and backward to jack up the first support plate, so that the angle between the first support plate and the bottom plate changes, thereby meeting the knee flexion needs of the patient. While the threaded rod rotates, the square rod rotates synchronously and drives the lead screw to rotate, thereby driving the telescopic strip to lift and lower. When the jacking frame moves forward and backward to adjust the angle between the first support plate and the bottom plate, the telescopic strip synchronously lifts and lowers to adjust the support height of the second support plate, so that the second support plate always remains parallel to the bottom plate, ensuring a flat support for the patient's calf, increasing the comfort of the patient, and when adjusting the first support plate and the second support plate, it is not necessary to move the patient's leg, reducing the pain caused to the patient, and the first support plate and the second support plate are adjusted synchronously, with simple operation and fast adjustment speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of an adjustable knee joint rehabilitation trainer proposed by the present utility model;

[0015] Figure 2 is a three-dimensional disassembled structural schematic diagram of an adjustable knee joint rehabilitation trainer proposed by the present utility model;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the bottom plate of an adjustable knee joint rehabilitation trainer proposed by the present utility model;

[0017] Figure 4Schematic diagram of the three-dimensional sectional structure of the telescopic cylinder of an adjustable knee joint rehabilitation trainer proposed by the present utility model;

[0018] Figure 5 is Figure 4 Local three-dimensional structure enlarged schematic diagram of A in [the figure].

[0019] In the figure: 1. Bottom plate; 101. First support plate; 102. Second support plate; 2. Lifting frame; 201. Connecting plate; 202. Telescopic cylinder; 203. Telescopic strip; 204. Rotating shaft; 205. Driving bevel gear; 206. Fixed plate; 207. Lead screw; 208. Driven bevel gear; 209. Square rod; 210. Threaded rod; 3. First rubber roller; 301. Second rubber roller; 4. First limiting rod; 401. Second limiting rod; 5. First limiting plate; 501. Second limiting plate. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] Such as Figures 1 - 5As shown in the figure, an adjustable knee joint rehabilitation trainer includes a bottom plate 1. The top surface of the bottom plate 1 is rotatably connected to a first support plate 101. The rear side of the first support plate 101 is rotatably connected to a second support plate 102. An adjustment component is provided on the bottom surfaces of the first support plate 101 and the second support plate 102. The adjustment component includes a jacking frame 2 provided on the top surface of the bottom plate 1. A connecting plate 201 is fixed to the rear side of the jacking frame 2. A telescopic cylinder 202 is fixed to the rear end of the connecting plate 201. A telescopic bar 203 is slidably inserted into the interior of the telescopic cylinder 202.

[0024] As Figures 2 - 5 As shown in the figure, in this embodiment, a rotating shaft 204 is rotatably connected to the interior of the telescopic cylinder 202 near the bottom surface. A driving bevel gear 205 is fixed to the outer wall of the rotating shaft 204. A fixing plate 206 is fixed to the interior of the telescopic cylinder 202. A lead screw 207 is rotatably connected to the interior of the fixing plate 206. The lead screw 207 is threadedly connected to the bottom surface of the telescopic bar 203. A driven bevel gear 208 is fixed to the bottom end of the lead screw 207. The driving bevel gear 205 meshes with the driven bevel gear 208.

[0025] As Figures 2 - 5 As shown in the figure, in this embodiment, a square rod 209 is rotatably connected to the top surface of the bottom plate 1. A threaded rod 210 is fixed to the front end of the square rod 209. The square rod 209 is slidably arranged inside the rotating shaft 204. The threaded rod 210 is threadedly connected to the jacking frame 2. By rotating the threaded rod 210, the square rod 209 rotates. The threaded rod 210 drives the jacking frame 2 to move forward and backward to jack up the first support plate 101, so that the angle between the first support plate 101 and the bottom plate 1 changes, thus meeting the knee flexion needs of the patient. While the threaded rod 210 rotates, the square rod 209 rotates synchronously and drives the lead screw 207 to rotate, thereby driving the telescopic bar 203 to rise and fall. When the jacking frame 2 moves forward and backward to adjust the angle between the first support plate 101 and the bottom plate 1, the telescopic bar 203 synchronously rises and falls to adjust the support height of the second support plate 102, so that the second support plate 102 always remains parallel to the bottom plate 1, ensuring a planar support for the patient's calf, increasing the comfort of the patient, and when adjusting the first support plate 101 and the second support plate 102, it is not necessary to move the patient's leg, reducing the pain caused to the patient. Moreover, the first support plate 101 and the second support plate 102 are adjusted synchronously, with simple operation and fast adjustment speed.

[0026] As Figures 2 - 5As shown, in this embodiment, two first rubber rollers 3 are rotatably connected to both the top surface and the bottom surface of the lifting frame 2. The four first rubber rollers 3 are respectively abutted against the top surface of the bottom plate 1 and the bottom surface of the first support plate 101. The top end of the telescopic strip 203 is rotatably connected to a second rubber roller 301, and the second rubber roller 301 is abutted against the bottom surface of the second support plate 102. By providing the first rubber rollers 3 to replace the lifting frame 2 and the second rubber roller 301 to replace the telescopic strip 203, which are respectively abutted against the bottom surfaces of the first support plate 101 and the second support plate 102 and the bottom plate 1, the wear between the two can be reduced when the lifting frame 2 and the telescopic strip 203 slide to lift the first support plate 101 and the second support plate 102, and the service life of the device can be increased.

[0027] As Figures 2 - 5 shown, in this embodiment, two first limiting rods 4 are fixed to the top surface of the bottom plate 1. The lifting frame 2 is slidably arranged on the outer wall of the first limiting rod 4. A second limiting rod 401 is fixed to the top surface of the fixing plate 206, and the top end of the second limiting rod 401 is slidably inserted into the bottom surface of the telescopic strip 203. By providing the first limiting rod 4, it can play a role in limiting and supporting the lifting frame 2, and the second limiting rod 401 can play a role in limiting and supporting the telescopic strip 203.

[0028] As Figures 2 - 5 shown, in this embodiment, first limiting plates 5 are fixed to both sides of the top surface of the first support plate 101 near the left and right sides, and second limiting plates 501 are fixed to both sides of the top surface of the second support plate 102 near the left and right sides. By providing the first limiting plates 5 and the second limiting plates 501, it can play a role in limiting both sides of the patient's legs, preventing the patient's legs from falling off the first support plate 101 and the second support plate 102.

[0029] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: During use, place the patient's leg on the top surfaces of the first support plate 101 and the second support plate 102. At this time, the patient's calf is placed on the second support plate 102, and the thigh is placed on the first support plate 101. At this time, the first limiting plate 5 and the second limiting plate 501 can play a limiting role on the left and right sides of the patient's leg, preventing the patient's leg from possibly falling off the first support plate 101 and the second support plate 102. Subsequently, rotate the threaded rod 210 and the square rod 209. Under the threaded connection between the threaded rod 210 and the lifting frame 2, the lifting frame 2 is driven to move back and forth to lift the first support plate 101, causing the angle between the first support plate 101 and the bottom plate 1 to change. During this process, the square rod 209 rotates synchronously. Under the sliding insertion between the square rod 209 and the rotating shaft 204, the square rod 209 can drive the rotating shaft 204 to rotate, and at the same time, the rotating shaft 204 can also slide on the square rod 209. When the rotating shaft 204 rotates, it drives the driving bevel gear 205 to rotate. Under the meshing action between the driving bevel gear 205 and the driven bevel gear 208, the driven bevel gear 208 and the lead screw 207 rotate. Under the threaded connection between the lead screw 207 and the telescopic strip 203, the telescopic strip 203 is driven to lift and lower. When the lifting frame 2 moves back and forth to adjust the angle between the first support plate 101 and the bottom plate 1, the telescopic strip 203 synchronously adjusts the support height of the second support plate 102, so that the second support plate 102 always remains parallel to the bottom plate 1, ensuring a planar support for the patient's calf, increasing the patient's comfort, and when adjusting the first support plate 101 and the second support plate 102, there is no need to move the patient's leg, reducing the pain caused to the patient. Moreover, the first support plate 101 and the second support plate 102 are adjusted synchronously, with simple operation and fast adjustment speed. By setting the first rubber roller 3 to replace the lifting frame 2 and the second rubber roller 301 to replace the telescopic strip 203, they are respectively abutted against the bottom surfaces of the first support plate 101 and the second support plate 102 and the bottom plate 1, so that when the lifting frame 2 and the telescopic strip 203 slide to lift the first support plate 101 and the second support plate 102, the wear between the two can be reduced, increasing the service life of the device. By setting the first limiting rod 4, it can play a limiting and supporting role on the lifting frame 2, and the second limiting rod 401 can play a limiting and supporting role on the telescopic strip 203. By setting the first limiting plate 5 and the second limiting plate 501, they can play a limiting role on the left and right sides of the patient's leg, preventing the patient's leg from possibly falling off the first support plate 101 and the second support plate 102.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An adjustable knee joint rehabilitation trainer, comprising a bottom plate (1), characterized in that, The top surface of the bottom plate (1) is rotatably connected with a first support plate (101). The rear side of the first support plate (101) is rotatably connected with a second support plate (102). An adjusting assembly is arranged on the bottom surfaces of the first support plate (101) and the second support plate (102). The adjusting assembly includes a jacking frame (2) arranged on the top surface of the bottom plate (1). A connecting plate (201) is fixed to the rear side of the jacking frame (2). A telescopic cylinder (202) is fixed to the rear end of the connecting plate (201). A telescopic bar (203) is slidably inserted into the telescopic cylinder (202). A rotating shaft (204) is rotatably connected to the inner part of the telescopic cylinder (202) near the bottom surface. A driving bevel gear (205) is fixed to the outer wall of the rotating shaft (204). A fixing plate (206) is fixed to the inner part of the telescopic cylinder (202). A lead screw (207) is rotatably connected to the inner part of the fixing plate (206). The lead screw (207) is threadedly connected to the bottom surface of the telescopic bar (203). A driven bevel gear (208) is fixed to the bottom end of the lead screw (207). The driving bevel gear (205) is engaged with the driven bevel gear (208). A square rod (209) is rotatably connected to the top surface of the bottom plate (1). A threaded rod (210) is fixed to the front end of the square rod (209). The square rod (209) is slidably arranged inside the rotating shaft (204). The threaded rod (210) is threadedly connected to the jacking frame (2).

2. The adjustable knee joint rehabilitation trainer according to claim 1, wherein, Two first rubber rollers (3) are rotatably connected to both the top surface and the bottom surface of the jacking frame (2). The four first rubber rollers (3) are respectively abutted against the top surface of the bottom plate (1) and the bottom surface of the first support plate (101). The top end of the telescopic bar (203) is rotatably connected to a second rubber roller (301). The second rubber roller (301) is abutted against the bottom surface of the second support plate (102).

3. The adjustable knee joint rehabilitation trainer according to claim 2, wherein, Two first limiting rods (4) are fixed to the top surface of the bottom plate (1). The jacking frame (2) is slidably arranged on the outer walls of the first limiting rods (4). A second limiting rod (401) is fixed to the top surface of the fixing plate (206). The top end of the second limiting rod (401) is slidably inserted into the bottom surface of the telescopic bar (203).

4. An adjustable knee joint rehabilitation trainer according to claim 3, characterized in that, Two first limiting plates (5) are fixed to the top surface of the first support plate (101) near the left and right sides. Two second limiting plates (501) are fixed to the top surface of the second support plate (102) near the left and right sides.

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