Intelligent bionic functional arm

Abstract

The utility model discloses an intelligent bionic functional arm, which relates to the technical field of bionics and comprises a shunt board, the bottom of the shunt board is fixedly connected with the top of a command processor, the bottom of the command processor is fixedly connected with the inner wall of an upper limb section, and one end of the upper limb section is fixedly connected with one end of a transition cylinder. The other end of the transition cylinder is fixedly connected with one side of the first connecting plate, the other side of the first connecting plate is rotatably connected with one side of the second connecting plate, the other side of the second connecting plate is fixedly connected with one end of the lower limb joint, and the other end of the lower limb joint is rotatably connected with one end of the first metacarpal bone. Through the arrangement of the shunt board, the command processor, the upper limb joint, the transition cylinder, the first connecting plate, the second connecting plate, the lower limb joint and the first metacarpal bone, weak myoelectricity and electroneurographic signals on the arm can be effectively extracted, the motion intention of a patient can be recognized, the purpose that the hand moves along with the heart and the motion intention is precisely recognized can be truly achieved, and the patient experience is improved. And the upper arm amputation user can control the original hand of the upper arm amputation user.

Description

Technical Field

[0001] The utility model relates to the technical field of bionics, in particular to an intelligent bionic functional arm. Background Art

[0002] Bionics is an ancient yet young discipline. People study the principles of the structure and function of organisms, and invent new equipment, tools and technologies based on these principles, creating advanced technologies suitable for production, learning and life.

[0003] After searching, the improved mechanical arm disclosed in the Chinese patent with publication number CN217801707U includes a mechanical arm base, a first rotation axis of the mechanical arm, a second rotation axis of the mechanical arm, a first mechanical arm, a third rotation axis of the mechanical arm, a second mechanical arm, and a fourth rotation axis of the mechanical arm. The middle of the top of the mechanical arm base is nested with the lower end of the first rotation axis of the mechanical arm, and the middle of one side of the top of the first rotation axis of the mechanical arm is nested with one end of the second rotation axis of the mechanical arm. The mechanical arm of the utility model is easy to disassemble and assemble when in use, so it is easy to carry and transport during exhibition. It can be packaged separately during the carrying and transportation process to prevent bumps, making it more stable and safe. When the connection between the shafts is affected by an external object, the corresponding rotation work can still be performed when the shafts are stationary, making it more flexible and convenient for market promotion and application.

[0004] Although the above scheme can perform corresponding rotation work, making it more flexible and convenient for market promotion and application, the improved robotic arm in the above patent is difficult to extract weak myoelectric and neural electrical signals on the arm, identify the patient's movement intention, and truly achieve the effect of hand following the heart; for this reason, we provide an intelligent bionic functional arm to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that it is difficult to extract weak myoelectric and neural electrical signals on the arm, identify the patient's movement intention, and truly make the hand move with the heart, thereby providing an intelligent bionic functional arm.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an intelligent bionic functional arm, comprising a branch plate, the bottom of the branch plate is fixedly connected to the top of the command processor, the bottom of the command processor is fixedly connected to the inner wall of the upper limb segment, one end of the upper limb segment is fixedly connected to one end of the transition tube, the other end of the transition tube is fixedly connected to one side of the first connecting plate, the other side of the first connecting plate is rotatably connected to one side of the second connecting plate, the other side of the second connecting plate is fixedly connected to one end of the lower limb segment, the other end of the lower limb segment is rotatably connected to one end of the first metacarpal bone, one side of the first metacarpal bone is fixedly connected with a first limit frame, the bottom of the upper limb segment is plugged with a maintenance plate, and the close fit between the components can realize a wide range of activities of the bionic arm.

[0007] Furthermore, one side of the first connecting plate is fixedly connected to one side of the first protective plate, and the other side of the first protective plate is rotatably connected to a first screw. There are two groups of first protective plates, and the two groups of first protective plates are respectively located on both sides of the first connecting plate. The purpose of setting up multiple groups of first protective plates is to prevent large movements at the elbow joint, which may cause collisions between components.

[0008] Furthermore, the middle part of the first limit frame is rotatably connected to one end of the first linkage plate, the other end of the first linkage plate is rotatably connected to one end of the second linkage plate, the other end of the second linkage plate is rotatably connected to one end of the third linkage plate, and the other end of the third linkage plate is rotatably connected to one end of the fourth linkage plate. The purpose of setting the first limit frame is to enable the bionic finger to move more stably.

[0009] Furthermore, the other end of the fourth linkage plate is rotatably connected to one end of the fifth linkage plate, and the other end of the fifth linkage plate is rotatably connected to one end of the first finger skeleton. The purpose of setting the first finger skeleton is to make the bionic arm consistent with a normal human arm.

[0010] Furthermore, a second protective plate is fixedly connected to the top of the second linkage plate, a third protective plate is fixedly connected to one side of the fourth linkage plate, and a fourth protective plate is fixedly connected to one side of the first limit frame. The purpose of setting the second linkage plate is to enable the bionic finger to work more flexibly.

[0011] Furthermore, a first support plate is fixedly connected to the other side of the first metacarpal bone, one end of the first support plate is rotatably connected to one end of the first frame, and the other end of the first frame is rotatably connected to one end of the second support plate. The purpose of setting the first frame is to effectively provide support for the operation of subsequent components.

[0012] Furthermore, the other end of the second support plate is rotatably connected to one end of the second frame, the other end of the second frame is rotatably connected to one end of the third support plate, the other end of the third support plate is rotatably connected to one end of the third frame, and the other end of the third frame is rotatably connected to one end of the second finger skeleton. The purpose of setting the second finger skeleton is to make the bionic arm no different from a normal human arm.

[0013] Furthermore, there are four groups of the first support plates, and the four groups of first support plates are fixedly connected to the other side of the first metacarpal bone. One end of the four groups of first support plates are rotatably provided with a first frame. The purpose of setting multiple groups of first support plates is to enable the four fingers of the palm to work at the same time.

[0014] Compared with the existing technology, the intelligent bionic functional arm has the following beneficial effects:

[0015] 1. The utility model can effectively extract weak myoelectric and neural electrical signals on the arm and identify the patient's movement intention through the arrangement of a branch board, a command processor, an upper limb segment, a transition tube, a first connecting plate, a second connecting plate, a lower limb segment, and a first metacarpal bone. It can truly make the hand move as the heart moves, accurately identify the movement intention, and enable users with upper arm amputation to control it like their original hand.

[0016] 2. The utility model can accurately control the movement speed and position of each finger and complete various interactive postures through the arrangement of the first limit frame, the first linkage plate, the second linkage plate, the third linkage plate, the fourth linkage plate, the fifth linkage plate, the first finger skeleton, the first support plate, the first frame, the second support plate, the second frame, the third support plate, the third frame, and the second finger skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure inside the upper limb segment of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the first connecting plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the first metacarpal bone of the utility model.

[0021] In the figure: 1. branch board; 2. command processor; 3. upper limb segment; 4. transition tube; 5. first connecting plate; 6. second connecting plate; 7. lower limb segment; 8. first metacarpal bone; 9. first protective plate; 10. first screw; 11. first limit frame; 12. first linkage plate; 13. second linkage plate; 14. third linkage plate; 15. fourth linkage plate; 16. fifth linkage plate; 17. first finger skeleton; 18. second protective plate; 19. third protective plate; 20. fourth protective plate; 21. first support plate; 22. first frame; 23. second support plate; 24. second frame; 25. third support plate; 26. third frame; 27. second finger skeleton; 28. maintenance plate. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] See also Figure 1 and Figure 2 , an intelligent bionic functional arm, comprising a shunt plate 1, the bottom of the shunt plate 1 is fixedly connected to the top of a command processor 2, the bottom of the command processor 2 is fixedly connected to the inner wall of an upper limb segment 3, one end of the upper limb segment 3 is fixedly connected to one end of a transition tube 4, the other end of the transition tube 4 is fixedly connected to one side of a first connecting plate 5, the other side of the first connecting plate 5 is rotatably connected to one side of a second connecting plate 6, the other side of the second connecting plate 6 is fixedly connected to one end of a lower limb segment 7, the other end of the lower limb segment 7 is rotatably connected to one end of a first metacarpal bone 8, one side of the first metacarpal bone 8 is fixedly connected with a first limiting frame 11, and a maintenance plate 28 is plugged into the bottom of the upper limb segment 3. The close cooperation between the components can realize that the bionic arm can move in a wide range, can effectively extract weak myoelectric and neural electrical signals on the arm, identify the patient's movement intention, can truly make the hand move with the heart, and finely identify the movement intention, so that the upper arm amputee user can control it like his original hand.

[0024] See also Figure 3 One side of the first connecting plate 5 is fixedly connected to one side of the first protective plate 9, and the other side of the first protective plate 9 is rotatably connected with a first screw 10. There are two groups of first protective plates 9, and the two groups of first protective plates 9 are respectively located on both sides of the first connecting plate 5. The purpose of setting multiple groups of first protective plates 9 is to prevent large-scale movement at the elbow joint, which may cause collisions between components, thereby making the behavior more scientific and increasing the usage time.

[0025] See also Figure 1The middle part of the first limiting frame 11 is rotatably connected to one end of the first linkage plate 12, the other end of the first linkage plate 12 is rotatably connected to one end of the second linkage plate 13, the other end of the second linkage plate 13 is rotatably connected to one end of the third linkage plate 14, and the other end of the third linkage plate 14 is rotatably connected to one end of the fourth linkage plate 15. The purpose of setting the first limiting frame 11 is to enable the bionic finger to move more stably and not easily shake during movement.

[0026] The other end of the fourth linkage plate 15 is rotatably connected to one end of the fifth linkage plate 16, and the other end of the fifth linkage plate 16 is rotatably connected to one end of the first finger skeleton 17. The purpose of setting the first finger skeleton 17 is to make the bionic arm consistent with a normal human arm and to complete the work of a normal arm.

[0027] A second protective plate 18 is fixedly connected to the top of the second linkage plate 13, a third protective plate 19 is fixedly connected to one side of the fourth linkage plate 15, and a fourth protective plate 20 is fixedly connected to one side of the first limiting frame 11. The purpose of setting the second linkage plate 13 is to enable the bionic finger to work more flexibly, thereby making the bionic arm more practical and preventing the phenomenon of detachment when taking some objects.

[0028] See also Figure 4 A first support plate 21 is fixedly connected to the other side of the first metacarpal bone 8, one end of the first support plate 21 is rotatably connected to one end of a first frame 22, and the other end of the first frame 22 is rotatably connected to one end of a second support plate 23. The purpose of setting the first frame 22 is to effectively provide support for the work of subsequent components and avoid the problem of insufficient flexibility of the bionic finger during use.

[0029] The other end of the second support plate 23 is rotatably connected to one end of the second frame 24, the other end of the second frame 24 is rotatably connected to one end of the third support plate 25, the other end of the third support plate 25 is rotatably connected to one end of the third frame 26, and the other end of the third frame 26 is rotatably connected to one end of the second finger skeleton 27. The purpose of providing the second finger skeleton 27 is to make the bionic arm the same as a normal human arm and to perform more varied operations.

[0030] There are four groups of first support plates 21, and the four groups of first support plates 21 are fixedly connected to the other side of the first metacarpal bone 8. One end of the four groups of first support plates 21 is rotatably provided with a first frame 22. The purpose of setting multiple groups of first support plates 21 is to enable the four fingers of the palm to work at the same time, thereby achieving true arm bionics.

[0031] Working principle: First, connect the branch board 1 to the severed limb of the human body. Then, under the action of the command processor 2, the interactive system based on the brain-computer interface technology uses non-invasive bioelectric induction electrodes to collect the user's subcutaneous electromyographic and neural electrical signals, and accurately identify the movement intention, so as to issue commands to subsequent components, so that the lower limb segment 7 can move freely at the elbow joint under the action of the second connecting plate 6 and the first connecting plate 5. At the same time, under the support of the first metacarpal bone 8, the second support plate 23 on the first support plate 21 can move through the first frame 22, and then the third support plate 25 can move through the second support plate 24. Finally, the second finger skeleton 27 moves freely under the action of the third frame 26 to achieve free movement of the fingers, thereby achieving the goal of identifying the patient's movement intention by taking the weak electromyographic and neural electrical signals on the arm, and truly making the hand follow the heart.

[0032] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent bionic functional arm, comprising a branch board (1), characterized in that: The bottom of the branch plate (1) is fixedly connected to the top of the command processor (2), the bottom of the command processor (2) is fixedly connected to the inner wall of the upper limb segment (3), one end of the upper limb segment (3) is fixedly connected to one end of the transition tube (4), the other end of the transition tube (4) is fixedly connected to one side of the first connecting plate (5), the other side of the first connecting plate (5) is rotatably connected to one side of the second connecting plate (6), the other side of the second connecting plate (6) is fixedly connected to one end of the lower limb segment (7), the other end of the lower limb segment (7) is rotatably connected to one end of the first metacarpal bone (8), one side of the first metacarpal bone (8) is fixedly connected to a first limiting frame (11), and the bottom of the upper limb segment (3) is plugged with a maintenance plate (28).

2. The intelligent bionic functional arm according to claim 1, characterized in that: One side of the first connecting plate (5) is fixedly connected to one side of the first protective plate (9), and the other side of the first protective plate (9) is rotatably connected to a first screw (10). There are two groups of first protective plates (9), and the two groups of first protective plates (9) are respectively located on both sides of the first connecting plate (5).

3. The intelligent bionic functional arm according to claim 1, characterized in that: The middle portion of the first limiting frame (11) is rotatably connected to one end of the first linkage plate (12), the other end of the first linkage plate (12) is rotatably connected to one end of the second linkage plate (13), the other end of the second linkage plate (13) is rotatably connected to one end of the third linkage plate (14), and the other end of the third linkage plate (14) is rotatably connected to one end of the fourth linkage plate (15).

4. The intelligent bionic functional arm according to claim 3, characterized in that: The other end of the fourth linkage plate (15) is rotatably connected to one end of the fifth linkage plate (16), and the other end of the fifth linkage plate (16) is rotatably connected to one end of the first finger skeleton (17).

5. The intelligent bionic functional arm according to claim 3, characterized in that: The second linkage plate (13) is fixedly connected to the top with a second protection plate (18), one side of the fourth linkage plate (15) is fixedly connected to a third protection plate (19), and one side of the first limiting frame (11) is fixedly connected to a fourth protection plate (20).

6. The intelligent bionic functional arm according to claim 1, characterized in that: A first support plate (21) is fixedly connected to the other side of the first metacarpal bone (8), one end of the first support plate (21) is rotatably connected to one end of the first frame (22), and the other end of the first frame (22) is rotatably connected to one end of the second support plate (23).

7. The intelligent bionic functional arm according to claim 6, characterized in that: The other end of the second support plate (23) is rotatably connected to one end of the second frame (24), the other end of the second frame (24) is rotatably connected to one end of the third support plate (25), the other end of the third support plate (25) is rotatably connected to one end of the third frame (26), and the other end of the third frame (26) is rotatably connected to one end of the second finger frame (27).

8. The intelligent bionic functional arm according to claim 6, characterized in that: There are four groups of the first support plates (21) in total. The four groups of first support plates (21) are all fixedly connected to the other side of the first metacarpal bone (8). One end of the four groups of first support plates (21) is rotatably provided with a first frame (22).

Images