Adjustable carbon fiber bionic ankle joint

Abstract

The utility model discloses an adjustable carbon fiber bionic ankle joint, and relates to the technical field of bionic machinery, the adjustable carbon fiber bionic ankle joint comprises a device main body, the upper end position of the device main body is provided with a support structure, the adjustable carbon fiber bionic ankle joint is also provided with a height adjusting mechanism, comprising a fixing frame, a first lifting block and a threaded rod, when a user needs to adjust the height of the carbon fiber bionic ankle joint, a rotary knob is rotated, the rotary knob drives a connecting column and a meshing bevel gear to rotate, and due to the fact that the meshing bevel gear is meshed with a rotary bevel gear, the rotary bevel gear can drive the threaded rod to rotate; the lifting block I ascends to drive the supporting structure to ascend, and the knob is stopped rotating until the lifting block I ascends to a proper distance, so that the purpose of adjusting the height of the carbon fiber bionic ankle joint is achieved, the situation that gaits are abnormal and unnatural due to the fact that the carbon fiber bionic ankle joint cannot meet the requirements of users with different heights and body types is avoided, and the comfort level of the users is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bionic machinery, in particular to an adjustable carbon fiber bionic ankle joint. Background Art

[0002] The carbon fiber bionic ankle joint is an artificial ankle joint made of carbon fiber material, designed using bionic technology to simulate the functions and movement characteristics of the natural ankle joint. Its characteristics are that it can be adjusted according to the needs of the user, such as adjusting the support strength and range of motion, so as to more accurately adapt to the individual's physiological state and activity needs, and effectively improve the patient's quality of life and daily activity ability.

[0003] At present, the existing bionic ankle joint (such as patent number: CN218082779U) discloses a bionic ankle joint, including a first drive mechanism, a second drive mechanism, a worm gear assembly, a rotating seat and a supporting seat; the worm gear assembly is arranged on the rotating seat, and the worm gear assembly and the rotating seat rotate synchronously; the first drive mechanism is connected to the worm gear assembly in a transmission manner, the first drive mechanism controls the rotation of the worm gear assembly, and the worm gear assembly drives the rotating seat to swing left and right; a slide groove is provided on the supporting seat, the rotating seat is slidably connected in the slide groove, and the second drive mechanism is connected and controls the rotating seat to pitch forward and backward along the slide groove. The utility model sets independent pitch degrees of freedom and swing degrees of freedom, there is no coupling between the two degrees of freedom, and each degree of freedom can be independently controlled, so that the control is simple and reliable, while ensuring that the ankle joint movements are flexible and changeable, which can better simulate human gait movements.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] There are many users of carbon fiber bionic ankle joints, and therefore the body shapes of users are also different. Users of different body shapes require different heights of the carbon fiber bionic ankle joints, and the height of the prosthesis directly affects the user's gait and posture. If the carbon fiber bionic ankle joint cannot meet the needs of users of different heights and body shapes, it will cause the user's gait to be abnormal and unnatural, and increase the user's muscle fatigue and discomfort. Utility Model Content

[0006] (I) Technical problems solved: In view of the deficiencies of the prior art, the present invention provides an adjustable carbon fiber bionic ankle joint, which solves the technical problem that the height of the prosthesis directly affects the user's gait and posture. If the carbon fiber bionic ankle joint cannot meet the needs of users of different heights and body shapes, it will cause the user's gait to be abnormal and unnatural, and increase the user's muscle fatigue and discomfort.

[0007] (II) Technical solution: To achieve the above objectives, the present utility model is implemented through the following technical solutions:

[0008] An adjustable carbon fiber bionic ankle joint comprises a device body, the upper end of which is provided with a supporting structure. The adjustable carbon fiber bionic ankle joint is also provided with a height adjustment mechanism, comprising a fixed frame, a lifting block 1 and a threaded rod. The fixed frame is fixedly connected to the right surface of the device body, the threaded rod is located inside the fixed frame, the lower surface of the threaded rod is rotatably connected to the inner wall of the fixed frame, a fixed plate is provided inside the fixed frame, the fixed plate is located at the lower end of the threaded rod, the surface of the fixed plate is fixedly connected to the inner wall of the fixed frame, a hole 2 is penetrated through the lower surface of the fixed plate, the hole 2 corresponds to the position of the threaded rod, the lifting block 1 is movably sleeved with the fixed frame, the lifting block 1 is located at the upper end of the fixed plate, and the lower surface of the lifting block 1 is provided with a threaded groove corresponding to the position of the threaded rod, the upper end of the threaded rod passes through the hole 2 and is threadedly sleeved with the lifting block 1 through the threaded groove.

[0009] Preferably: a rotating bevel gear is arranged at the lower end of the threaded rod, a meshing bevel gear is vertically meshed at the left end of the rotating bevel gear, and a connecting column is fixedly connected to the left surface of the meshing bevel gear.

[0010] Preferably: a hole one is formed through the left surface of the fixing frame, the connecting post is rotatably connected to the fixing frame through the hole one, a knob is provided at the left end of the fixing frame, and the right surface of the knob is fixedly connected to the left surface of the connecting post.

[0011] Preferably: a limit block 1 is provided at both the front and rear ends of the fixed frame, and a long groove is opened through both the front and rear ends of the fixed frame. When the lifting block 1 rises to a certain distance, the two limit blocks 1 will press against the inner wall of the fixed frame, so that the lifting block 1 cannot continue to rise, and the two limit blocks 1 pass through the corresponding long grooves and are fixedly connected to the front and rear surfaces of the lifting block 1.

[0012] Preferably: the front surface of lifting block one is fixedly connected to two connecting rods, lifting block two is arranged at the upper end of lifting block one, lifting block two is movably connected to the fixed frame, the lower surface of lifting block two is fixedly connected to the upper surface of the supporting structure, and two grooves are provided inside lifting block two, and both grooves correspond to the positions of the two connecting rods.

[0013] Preferably: the two grooves are both movably sleeved with limit blocks 2, the upper surfaces of the two limit blocks 2 are fixedly connected with springs, the lower surface of the lifting block 2 is penetrated by a hole 3, the two holes 3 correspond to the positions of the two connecting rods, the two holes 3 also correspond to the positions of the two grooves, and the two connecting rods pass through the hole 3 and are fixedly connected to the corresponding limit blocks 2.

[0014] (III) Beneficial effects: 1. When the user needs to adjust the height of the carbon fiber bionic ankle joint, the user rotates the knob. At this time, the knob drives the connecting column and the meshing bevel gear to rotate. Since the meshing bevel gear is meshed with the rotating bevel gear, the rotating bevel gear drives the threaded rod to rotate. At this time, the lifting block does not rotate. Therefore, the lifting block rises when the threaded rod rotates. The lifting block will drive the supporting structure to rise until the lifting block rises to a suitable distance. Then, the knob is stopped, thereby achieving the purpose of adjusting the height of the carbon fiber bionic ankle joint, avoiding the abnormal and unnatural gait caused by the carbon fiber bionic ankle joint being unable to meet the needs of users of different heights and body shapes, and improving the comfort of the user.

[0015] 2. The spring provides a buffering effect for the user. The spring can effectively absorb the impact and vibration during ankle movement, thereby reducing the impact of these forces on the joint and surrounding tissues. This shock absorption effect helps reduce discomfort during gait and improves the user's comfort and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural diagram of the entire utility model;

[0018] Figure 2 This is a structural diagram of the fixed frame of the utility model;

[0019] Figure 3 This is a structural diagram of the interior of the fixed frame of the utility model;

[0020] Figure 4 This is a structural diagram of the interior of the lifting block 2 of the utility model.

[0021] Legend: 1. Device body; 2. Support structure; 3. Fixed frame; 4. Lifting block one; 5. Lifting block two; 6. Knob; 7. Connecting rod; 8. Limit block one; 9. Threaded rod; 10. Threaded groove; 11. Fixed plate; 12. Connecting column; 13. Meshing bevel gear; 14. Rotating bevel gear; 15. Hole one; 16. Hole two; 17. Long groove; 18. Spring; 19. Hole three; 20. Limit block two. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides an adjustable carbon fiber bionic ankle joint, which effectively solves the technical problem that the height of the prosthesis directly affects the gait and posture of the user. If the carbon fiber bionic ankle joint cannot meet the needs of users of different heights and body shapes, it will cause the user's gait to be abnormal and unnatural, and increase the user's muscle fatigue and discomfort. When the user needs to adjust the height of the carbon fiber bionic ankle joint, the user rotates the knob. At this time, the knob drives the connecting column and the meshing bevel gear to rotate. Since the meshing bevel gear is meshed with the rotating bevel gear, the rotating bevel gear will drive the threaded rod to rotate. At this time, the lifting block does not rotate, so the lifting block will rise when the threaded rod rotates. The rise of the lifting block will drive the support structure to rise. Until the lifting block rises to an appropriate distance, the knob is stopped, thereby achieving the purpose of adjusting the height of the carbon fiber bionic ankle joint, avoiding the abnormal and unnatural gait caused by the carbon fiber bionic ankle joint being unable to meet the needs of users of different heights and body shapes, and improving the comfort of the user.

[0023] Embodiment: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the problem that the height of the prosthesis directly affects the gait and posture of the user. If the carbon fiber bionic ankle joint cannot meet the needs of users of different heights and body shapes, it will cause the user's gait to be abnormal and unnatural, and increase the user's muscle fatigue and discomfort. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides an adjustable carbon fiber bionic ankle joint, including a device body 1, a support structure 2 is arranged at the upper end position of the device body 1, and the adjustable carbon fiber bionic ankle joint is also provided with a height adjustment mechanism, including a fixed frame 3, a lifting block 4 and a threaded rod 9, the fixed frame 3 is fixedly connected to the right surface of the device body 1, the threaded rod 9 is located inside the fixed frame 3, the lower surface of the threaded rod 9 is rotatably connected to the inner wall of the fixed frame 3, a fixed plate 11 is arranged inside the fixed frame 3, the fixed plate 11 is located at the lower end position of the threaded rod 9, the surface of the fixed plate 11 is fixedly connected to the inner wall of the fixed frame 3, a hole 16 is penetrated and opened on the lower surface of the fixed plate 11, and the hole 16 corresponds to the position of the threaded rod 9, the lifting block 4 is movably sleeved with the fixed frame 3, the lifting block 4 is located at the upper end position of the fixed plate 11, and the lower surface of the lifting block 4 A thread groove 10 corresponding to the position of the threaded rod 9 is opened, the upper end of the threaded rod 9 passes through the hole 2 16 and is threadedly connected to the lifting block 4 through the thread groove 10, and a rotating bevel gear 14 is arranged at the lower end of the threaded rod 9, and the left end of the rotating bevel gear 14 is vertically meshed with the meshing bevel gear 13, and the left surface of the meshing bevel gear 13 is fixedly connected with a connecting column 12. When the user needs to adjust the height of the carbon fiber bionic ankle joint, the knob 6 is rotated. At this time, the knob 6 drives the connecting column 12 and the meshing bevel gear 13 to rotate. Since the meshing bevel gear 13 is meshed with the rotating bevel gear 14, the rotating bevel gear 14 will drive the threaded rod 9 to rotate. At this time, the lifting block 4 does not rotate, so the lifting block 4 will rise when the threaded rod 9 rotates, and the rise of the lifting block 4 will drive the support structure 2 to rise. Until the lifting block 4 rises to a suitable distance, the knob 6 is stopped.

[0025] A hole 15 is provided on the left surface of the fixed frame 3, and the connecting column 12 is rotatably connected to the fixed frame 3 through the hole 15. A knob 6 is provided at the left end of the fixed frame 3, and the right surface of the knob 6 is fixedly connected to the left surface of the connecting column 12. Limit blocks 8 are provided at the front and rear ends of the fixed frame 3, and long grooves 17 are provided at the front and rear ends of the fixed frame 3. When the lifting block 4 rises to a certain distance, the two limit blocks 8 will resist the inner wall of the fixed frame 3, so that the lifting block 4 cannot continue to rise. The two limit blocks 8 pass through the corresponding long grooves 17 and are fixedly connected to the front and rear surfaces of the lifting block 4, thereby achieving the purpose of adjusting the height of the carbon fiber bionic ankle joint, avoiding the abnormal and unnatural gait caused by the carbon fiber bionic ankle joint being unable to meet the needs of users of different heights and body shapes, and improving the comfort of the user.

[0026] The front surface of the lifting block 1 4 is fixedly connected with two connecting rods 7, and the upper end position of the lifting block 1 4 is provided with a lifting block 2 5, which is movably sleeved with the fixed frame 3, and the lower surface of the lifting block 2 5 is fixedly connected with the upper surface of the supporting structure 2. Two grooves are provided inside the lifting block 2 5, and the two grooves correspond to the positions of the two connecting rods 7. The two grooves are movably sleeved with the limiting block 2 20, and the upper surfaces of the two limiting blocks 20 are fixedly connected with springs 18. The lower surface of the lifting block 2 5 is penetrated with a hole 3 19, and the two holes 3 19 correspond to the positions of the two connecting rods 7. The two holes 3 19 also correspond to the positions of the two grooves. The two connecting rods 7 penetrate the hole 3 19 and are fixedly connected with the corresponding limiting block 2 20. The spring 18 provides a buffering effect for the user. The spring 18 can effectively absorb the impact and vibration in the ankle joint movement, thereby reducing the impact of these forces on the joint and surrounding tissues. This shock absorption effect helps to reduce the discomfort during gait and improve the comfort and stability of the user.

[0027] Working principle: When the user needs to adjust the height of the carbon fiber bionic ankle joint, the user rotates the knob 6. At this time, the knob 6 drives the connecting column 12 and the meshing bevel gear 13 to rotate. Since the meshing bevel gear 13 is meshed with the rotating bevel gear 14, the rotating bevel gear 14 will drive the threaded rod 9 to rotate. At this time, the lifting block 4 does not rotate, so the lifting block 4 will rise when the threaded rod 9 rotates. The rise of the lifting block 4 will drive the rise of the supporting structure 2 until the lifting block 4 rises to a suitable distance. Stop rotating the knob 6, and the purpose of adjusting the height of the carbon fiber bionic ankle joint is achieved. It avoids the abnormal and unnatural gait caused by the carbon fiber bionic ankle joint being unable to meet the needs of users of different heights and body shapes, and improves the comfort of the user. The spring 18 provides a buffering effect for the user. The spring 18 can effectively absorb the impact force and vibration in the ankle joint movement, thereby reducing the impact of these forces on the joint and surrounding tissues. This shock absorption effect helps to reduce discomfort during gait and improve the comfort and stability of the user.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An adjustable carbon fiber bionic ankle joint, comprising a device body (1), wherein a support structure (2) is provided at the upper end of the device body (1), characterized in that: The adjustable carbon fiber bionic ankle joint is also provided with a height adjustment mechanism, comprising a fixing frame (3), a lifting block (4) and a threaded rod (9); The fixing frame (3) is fixed to the right surface of the connecting device body (1), the threaded rod (9) is located inside the fixing frame (3), the lower surface of the threaded rod (9) is rotatably connected to the inner wall of the fixing frame (3), a fixing plate (11) is arranged inside the fixing frame (3), the surface of the fixing plate (11) is fixedly connected to the inner wall of the fixing frame (3), the lower surface of the fixing plate (11) is penetrated by a second hole (16), the lifting block (4) is movably sleeved with the fixing frame (3), the lifting block (4) is located at the upper end position of the fixing plate (11), and the lower surface of the lifting block (4) is provided with a threaded groove (10) corresponding to the position of the threaded rod (9), the upper end position of the threaded rod (9) passes through the second hole (16) and is threadedly sleeved with the lifting block (4) through the threaded groove (10).

2. The adjustable carbon fiber bionic ankle joint according to claim 1, characterized in that: A rotating bevel gear (14) is provided at the lower end of the threaded rod (9), and a meshing bevel gear (13) is vertically meshed at the left end of the rotating bevel gear (14); Wherein, a connecting column (12) is fixedly connected to the left surface of the meshing bevel gear (13).

3. The adjustable carbon fiber bionic ankle joint according to claim 2, characterized in that: A hole (15) is formed through the left surface of the fixed frame (3), and the connecting column (12) is rotatably connected to the fixed frame (3) through the hole (15); A knob (6) is provided at the left end of the fixed frame (3), and the right surface of the knob (6) is fixedly connected to the left surface of the connecting column (12).

4. The adjustable carbon fiber bionic ankle joint according to claim 1, characterized in that: The front and rear ends of the fixed frame (3) are both provided with limit blocks (8), and the front and rear ends of the fixed frame (3) are both penetrated by long grooves (17); Wherein, the two limit blocks 1 (8) pass through the corresponding long slots (17) and are fixedly connected to the front and rear surfaces of the lifting block 1 (4).

5. The adjustable carbon fiber bionic ankle joint according to claim 1, characterized in that: The front surface of the lifting block 1 (4) is fixedly connected to two connecting rods (7); a lifting block 2 (5) is arranged at the upper end of the lifting block 1 (4); the lifting block 2 (5) is movably sleeved with the fixed frame (3); and the lower surface of the lifting block 2 (5) is fixedly connected to the upper surface of the supporting structure (2); There are two grooves formed inside the lifting block 2 (5), and the two grooves correspond to the positions of the two connecting rods (7).

6. The adjustable carbon fiber bionic ankle joint according to claim 5, characterized in that: The two grooves are both movably sleeved with a second limiting block (20), and the upper surfaces of the two limiting blocks (20) are both fixedly connected with a spring (18); The lower surface of the lifting block 2 (5) is penetrated by a hole 3 (19), and the two connecting rods (7) are penetrated by the hole 3 (19) and fixedly connected with the corresponding limit block 2 (20).

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