CN111015726A - But bionical machinery knee joint of auto-lock based on tension structure - Google Patents
But bionical machinery knee joint of auto-lock based on tension structure Download PDFInfo
- Publication number
- CN111015726A CN111015726A CN201911254597.1A CN201911254597A CN111015726A CN 111015726 A CN111015726 A CN 111015726A CN 201911254597 A CN201911254597 A CN 201911254597A CN 111015726 A CN111015726 A CN 111015726A
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- CN
- China
- Prior art keywords
- knee
- supporting rod
- shank
- thigh
- bracing piece
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
- B25J17/02—Wrist joints
- B25J17/0258—Two-dimensional joints
- B25J17/0266—Two-dimensional joints comprising more than two actuating or connecting rods
Abstract
The invention discloses a self-locking bionic mechanical knee joint based on a tension structure, which comprises a thigh supporting rod, a shank supporting rod, a knee block, a telescopic spring, a connecting block, a slideway, an internal thread and a connecting shaft, wherein the knee block consists of a telescopic shaft, the telescopic spring, the telescopic slideway and a connecting hole, the shank supporting rod moves in the slideway, and the length of the telescopic spring is further changed, so that a telescopic mechanism in the knee block is driven to achieve a required state, and meanwhile, the knee block can be adjusted according to actual conditions, and all requirements in use are met as far as possible.
Description
Technical Field
The invention relates to the field of machinery and bionics, in particular to a self-locking bionic knee joint based on a tensioning mechanism.
Background
Therefore, the artificial bionic knee joint is more and more widely applied, the human knee joint is a very complex structure, and the artificial bionic knee joint can realize vertical walking, bending and bearing force and ensure that people stand and go upstairs, so that the energy is saved, the stability is improved, the flexibility is improved in the process of designing the knee, and the artificial bionic knee joint becomes a very important requirement for development. Since the orthocenter of the calf and the knee of the human body are not aligned with each other, such an element is also considered in the design process. Meanwhile, in the design process, the requirements of cost saving and high flexibility are still maintained, so that the design of the whole knee is more and more important.
Disclosure of Invention
Artificial bionics is an important research direction at present, but the structure of the artificial knee joint on the market at present is complex, the problem that the instant centers of the large and small legs are not perfectly simulated on the same straight line in the use process is solved, the energy loss is large in the use process, and the simulation effect is not good. Therefore, the invention provides the self-locking bionic mechanical knee joint based on the tensioning mechanism, which reduces the contact between the sliding pairs in the design process, has a simple structure, has less energy loss, conforms to the condition of human body structure, meets the requirement of a normal knee as far as possible, and can meet the requirement of the knee in an experiment.
The technical scheme of the invention is as follows.
The utility model provides a but bionic machinery knee joint of auto-lock based on tension structure which characterized in that includes: the knee block consists of a telescopic shaft, a telescopic spring, a telescopic slideway and a connecting hole, the slideway is arranged in the thigh supporting rod, the shank supporting rod and the thigh supporting rod are in an X shape, the shank supporting rod moves in the slideway so as to change the length of the telescopic spring, thereby changing the state of the knee block, when the telescopic spring connecting the thigh supporting rod and the shank supporting rod is changed, the state of the telescopic spring in the knee block can be changed, thereby leading to the change of the knee block, the connecting shaft is arranged at two ends of the shank supporting rod and the thigh supporting rod, and aims to adopt a fixed connection mode to connect all parts together, and holes are arranged at two ends of the shank supporting rod, two ends of the thigh supporting rod and two ends of the connecting shaft, and the extension spring is connected with the connecting block and the hole of the connecting shaft.
The bionic mechanical knee joint with the tension structure and capable of self-locking is characterized in that: the knee block, the thigh supporting rod and the shank supporting rod are connected by the connecting shaft.
The bionic mechanical knee joint with the tension structure and capable of self-locking is characterized in that: the connecting shaft is provided with internal threads so as to facilitate the connection of other components.
Drawings
Fig. 1 is a schematic overall structure diagram of a self-locking bionic mechanical knee joint with a tension structure.
Fig. 2 is a sectional view of a telescopic unit of a self-lockable bionic mechanical knee joint of a tension structure.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
The utility model provides a but bionic machinery knee joint of auto-lock based on tension structure which characterized in that includes: the knee support rod comprises a thigh support rod 1, a shank support rod 2, a knee block 3, a telescopic spring 4, a connecting block 5, a slideway 6, an internal thread 7 and a connecting shaft 8, wherein the knee block 3 consists of a telescopic shaft 31, a telescopic spring 32, a telescopic slideway 33 and a connecting hole 34, the slideway 6 is arranged in the thigh support rod 1, the shank support rod 2 and the thigh support rod 1 are in an X shape, the shank support rod 2 moves in the slideway 6 and further changes the length of the telescopic spring 4 so as to change the state of the knee block 3, when the telescopic spring connecting the thigh support rod 1 and the shank support rod 2 is changed, the state of the telescopic spring 32 in the knee block 3 can be changed so as to change the knee block 3, the connecting shaft 5 is arranged at two ends of the shank support rod 2 and on the thigh support rod 1 and aims to connect all parts together in a fixed connection mode, holes are formed in the two ends of the shank supporting rod 2, the two ends of the thigh supporting rod 1 and the two ends of the connecting shaft 5, and the extension spring 4 is connected with the connecting block 5 and the hole of the connecting shaft 8.
According to the above-mentioned bionical mechanical knee joint of auto-lock of stretch-draw structure that requires, its characterized in that: the knee block 3, the thigh supporting rod 1 and the shank supporting rod 2 are connected by the connecting shaft 8.
According to the above-mentioned bionical mechanical knee joint of auto-lock of stretch-draw structure that requires, its characterized in that: the connecting shaft 5 is provided with an internal thread 8 to facilitate the connection of other components.
Claims (3)
1. The utility model provides a but bionic machinery knee joint of auto-lock based on tension structure which characterized in that includes: thigh bracing piece (1), shank bracing piece (2), knee piece (3), expanding spring (4), connecting block (5), slide (6), internal thread (7), connecting axle (8), knee piece (3) by telescopic shaft (31), expanding spring (32), flexible slide (33), connecting hole (34) constitute, be provided with slide (6) in thigh bracing piece (1), shank bracing piece (2) becomes the X type with thigh bracing piece (1), shank bracing piece (2) moves in slide (6), and then changes the length of expanding spring (4), thereby carries out the change of state to knee piece (3), when the expanding spring who connects thigh bracing piece (1) and shank bracing piece (2) changes, can change the state of expanding spring (32) in knee piece (3), thereby lead to the change of knee piece (3), the connecting shafts (5) are arranged at two ends of the shank supporting rod (2) and the thigh supporting rod (1) and are connected together in a fixed connection mode, holes are formed in two ends of the shank supporting rod (2), two ends of the thigh supporting rod (1) and two ends of the connecting shafts (5), and the extension springs (4) are connected with the connecting blocks (5) and the holes of the connecting shafts (8).
2. A self-lockable biomimetic mechanical knee joint with a tension structure according to claim 1, characterized in that: the knee block (3), the thigh supporting rod (1) and the shank supporting rod (2) are connected by the connecting shaft (8).
3. A self-lockable biomimetic mechanical knee joint with a tension structure according to claim 1, characterized in that: the connecting shaft (5) is provided with an internal thread (8) to facilitate the connection of other components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254597.1A CN111015726A (en) | 2019-12-10 | 2019-12-10 | But bionical machinery knee joint of auto-lock based on tension structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254597.1A CN111015726A (en) | 2019-12-10 | 2019-12-10 | But bionical machinery knee joint of auto-lock based on tension structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111015726A true CN111015726A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911254597.1A Pending CN111015726A (en) | 2019-12-10 | 2019-12-10 | But bionical machinery knee joint of auto-lock based on tension structure |
Country Status (1)
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| CN (1) | CN111015726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658436A (en) * | 2020-07-01 | 2020-09-15 | 长春工业大学 | Knee joint exoskeleton rehabilitation robot mechanism based on integral tensioning structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658436A (en) * | 2020-07-01 | 2020-09-15 | 长春工业大学 | Knee joint exoskeleton rehabilitation robot mechanism based on integral tensioning structure |
| CN111658436B (en) * | 2020-07-01 | 2022-08-02 | 长春工业大学 | Knee joint exoskeleton rehabilitation robot mechanism based on integral tensioning structure |
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Application publication date: 20200417 |