CN111839845A - Shock attenuation energy storage structure and have its artificial limb - Google Patents

Shock attenuation energy storage structure and have its artificial limb Download PDF

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Publication number
CN111839845A
CN111839845A CN202010502887.XA CN202010502887A CN111839845A CN 111839845 A CN111839845 A CN 111839845A CN 202010502887 A CN202010502887 A CN 202010502887A CN 111839845 A CN111839845 A CN 111839845A
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CN
China
Prior art keywords
rotating shaft
rotating sleeve
energy
rotating
energy storage
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Granted
Application number
CN202010502887.XA
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Chinese (zh)
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CN111839845B (en
Inventor
宋亮
李国富
张志强
郭俊超
杨荣
云晓
龚思远
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National Research Center for Rehabilitation Technical Aids
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National Research Center for Rehabilitation Technical Aids
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Priority to CN202010502887.XA priority Critical patent/CN111839845B/en
Publication of CN111839845A publication Critical patent/CN111839845A/en
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Publication of CN111839845B publication Critical patent/CN111839845B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2/6607—Ankle joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2002/6614—Feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2002/6614—Feet
    • A61F2002/665—Soles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2002/6614—Feet
    • A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2002/6614—Feet
    • A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel
    • A61F2002/6678—L-shaped

Abstract

The invention relates to the technical field of shock absorption and energy storage, in particular to a shock absorption and energy storage structure and an artificial limb with the same. A shock absorbing and energy storing structure comprising: a housing; the first rotating shaft and the second rotating shaft are arranged in the shell in a non-coaxial mode, and at least one end of the first rotating shaft and at least one end of the second rotating shaft penetrate through the shell; the first rotating sleeve is arranged on the first rotating shaft and is provided with a first connecting part which extends along the circumferential direction of the shell; the energy storage mechanism is arranged between the first connecting portion of the first rotating sleeve and the second rotating shaft, when the first rotating shaft receives driving force, the shell winds the second rotating shaft rotates, the first rotating shaft drives the first rotating sleeve to be opposite to the shell in a reverse rotating mode, and the energy storage mechanism receives acting force applied by the first connecting portion of the first rotating sleeve to generate deformation energy storage. The invention provides a shock-absorbing energy-storing structure with good shock-absorbing effect and energy-storing function and an artificial limb with the same.

Description

Shock attenuation energy storage structure and have its artificial limb
Technical Field
The invention relates to the technical field of shock absorption and energy storage, in particular to a shock absorption and energy storage structure and an artificial limb with the same.
Background
In recent years, due to traffic accidents, diseases and the like, people who amputate below the knee gradually increase, and the function of wearing the ankle joint prosthesis can be greatly compensated for the loss of the human body. The existing ankle joint artificial limb is mostly passive, the resilience force required by the stump is met by utilizing the deformation of the foot plate, and the ankle joint artificial limb is relatively rigid, stiff and poor in flexibility when moving. For climbing up and down stairs, walking up and down slopes basically needs the body swing of the stub and the crotch of an assembler to provide power, and the disabled can move laboriously, so that the disabled can bring much inconvenience in normal life.
Therefore, chinese patent document CN209220587U discloses a hydraulic bionic ankle joint, which includes a fixed seat, a hydraulic buffer mechanism and a quadrangular frustum pyramid structural member, wherein when the bionic ankle joint performs a plantar flexion movement/dorsiflexion movement, a rotor drives a movable wing to compress a first hydraulic cavity/a second hydraulic cavity, and a hydraulic medium in the first hydraulic cavity/the second hydraulic cavity flows to the second hydraulic cavity/the first hydraulic cavity through a first check valve/a second check valve, so as to provide damping force for the bionic ankle joint during the plantar flexion movement/dorsiflexion movement. The damping force provided by the flow of the hydraulic medium has poor damping effect, can only play a role in assisting damping, and does not have an energy storage function.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the damping and energy storage structure in the prior art has poor damping and shock absorption effect and does not have an energy storage function, so that the damping and energy storage structure with good damping and shock absorption effect and an artificial limb with the same are provided.
In order to solve the above technical problem, the present invention provides a shock-absorbing energy-storing structure, including:
a housing;
the first rotating shaft and the second rotating shaft are arranged in the shell in a non-coaxial mode, and at least one end of the first rotating shaft and at least one end of the second rotating shaft penetrate through the shell;
the first rotating sleeve is arranged on the first rotating shaft and is provided with a first connecting part which extends along the circumferential direction of the shell;
the energy storage mechanism is arranged between the first connecting portion of the first rotating sleeve and the second rotating shaft, when the first rotating shaft receives driving force, the shell winds the second rotating shaft rotates, the first rotating shaft drives the first rotating sleeve to be opposite to the shell in a reverse rotating mode, and the energy storage mechanism receives acting force applied by the first connecting portion of the first rotating sleeve to generate deformation energy storage.
Shock attenuation energy storage structure, still including locating the epaxial second of second commentaries on classics cover, the second changes the cover and has the edge the second connecting portion that the circumference of shell extended the setting when first pivot did not receive drive power, first commentaries on classics cover with the second is changeed the cover and is relative the centre of a circle symmetry of shell sets up, energy storage mechanism is for locating first connecting portion with a pair between the second connecting portion.
The damping energy storage structure, energy storage mechanism be respectively with first commentaries on classics cover with two first elastic component of second commentaries on classics cover cross connection first pivot drive when first commentaries on classics cover rotates, the second pivot with the second commentaries on classics cover syntropy rotates, two first elastic component is compressed and tensile respectively.
The damping energy storage structure is characterized in that the first elastic piece is a spring.
The damping and energy storage structure is characterized in that the first connecting part and the second connecting part are respectively provided with a mounting hole in a forming mode, and two ends of the first elastic part are respectively arranged in the mounting holes through fasteners.
The shock attenuation energy storage structure, energy storage mechanism is for running through first connecting portion with the clearance of second connecting portion, and both ends respectively with two second elastic component that the shell is fixed first pivot drive when first commentaries on classics cover rotates, the second pivot with the second changes the cover syntropy and rotates, two the deformation of opposite direction takes place for the second elastic component.
The second elastic piece is a coil spring.
The damping and energy storage structure is characterized in that buffering mechanisms are arranged between the first rotating sleeve and the inner wall of the shell and between the second rotating sleeve and the inner wall of the shell.
The damping energy storage structure is characterized in that the buffer mechanism is an arc-shaped rubber block.
The artificial limb also comprises the shock-absorbing and energy-storing structure, and the first rotating shaft and the second rotating shaft are arranged in parallel.
The technical scheme of the invention has the following advantages:
1. according to the damping and energy storage structure provided by the invention, when the first rotating shaft is driven by the driving force to enable the shell to rotate around the second rotating shaft, the first rotating shaft drives the first rotating sleeve connected with the first rotating shaft to rotate reversely relative to the shell. Because first commentaries on classics cover has the first connecting portion that extend along shell circumference, locate the energy storage mechanism between first commentaries on classics cover and the second pivot and receive the effect of first connecting portion and take place the deformation energy storage, not only realize the energy storage effect from this, still because this deformation effect is greater than the damping action that liquid flow produced far away, consequently buffering shock attenuation effect is better.
2. According to the damping and energy storage structure provided by the invention, the pair of energy storage mechanisms are arranged between the first rotating sleeve and the second rotating sleeve which are symmetrically arranged, and when the first rotating sleeve and the second rotating sleeve rotate in the same direction relative to the shell, the pair of energy storage mechanisms simultaneously generate deformation energy storage, so that the damping and energy storage effects are further improved.
3. According to the damping and energy storage structure provided by the invention, the two first elastic pieces are arranged between the first rotating sleeve and the second rotating sleeve in a crossed manner, so that when the first rotating sleeve and the second rotating sleeve rotate, the two first elastic pieces are elastically deformed, the deformation amount is large, more energy is stored, and the damping and energy storage effect is better.
4. According to the damping and energy storage structure provided by the invention, the pair of second elastic pieces is arranged between the gaps of the first rotating sleeve and the second rotating sleeve, so that the first rotating sleeve and the second rotating sleeve directly act on the two second elastic pieces during rotation to generate elastic deformation, and the damping and energy storage effect is good.
5. According to the damping and energy storage structure provided by the invention, the buffering mechanisms are arranged between the first rotating sleeve and the inner wall of the shell and between the second rotating sleeve and the inner wall of the shell, so that the first rotating sleeve and the second rotating sleeve can be compressed and stored energy when rotating, and the damping effect of the device is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a first embodiment of a shock-absorbing and energy-storing structure provided by the invention;
FIG. 2 is a schematic view of FIG. 1 with the top cover removed;
Fig. 3 is a schematic view of a shock-absorbing and energy-storing structure provided by the invention with a top cover removed.
Fig. 4 is a schematic view of a prosthesis with a shock-absorbing and energy-storing structure provided by the invention.
Description of reference numerals:
1. a housing; 2. a first rotating shaft; 3. a second rotating shaft; 4. a first rotating sleeve; 5. a second rotating sleeve; 6. a first elastic member; 7. a screw; 8. a buffer mechanism; 9. a bending limiting part; 10. a second elastic member; 11. a driving end; 12. a load end; 13. a connecting member.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The first embodiment of the shock-absorbing and energy-storing structure shown in fig. 1 and 2 comprises a circular housing 1, a pair of first rotating shaft 2 and second rotating shaft 3 arranged in parallel and at an interval in the circular housing 1, a first rotating sleeve 4 and a second rotating sleeve 5 respectively sleeved on the first rotating shaft 2 and the second rotating shaft 3, and two first elastic members 6 respectively connected with the first rotating sleeve 4 and the second rotating sleeve 5 in a cross manner.
First commentaries on classics cover 4 is the arc piece, has the edge two first connecting portion that the circumference of shell 1 extended the setting, second commentaries on classics cover 5 also is the arc piece, has the edge two second connecting portions that the circumference of shell 1 extended the setting. When the first rotating shaft 2 is not driven, the first rotating sleeve 4 and the second rotating sleeve 5 are symmetrically arranged relative to the center of the circle of the shell 1.
The energy storage process of the shock absorption and energy storage structure of the artificial limb is as follows: as shown in fig. 1, 2 and 4, the first rotating shaft 2 is connected to the driving end 11 through the connecting member 13, and the second rotating shaft 3 is connected to the load end 12. When the first rotating shaft 2 is subjected to a downward driving force applied by the driving end 11, the connecting piece 13 drives the housing 1 to rotate towards the counterclockwise direction in the absolute movement direction, and the first rotating shaft 2 makes a downward translation movement in the oblique direction in the absolute movement direction. The first rotating shaft 2 rotates clockwise relative to the housing 1, that is, the first connecting part at the lower end of the first rotating sleeve 4 swings leftwards, and the distance from the second connecting part at the upper end of the second rotating sleeve 5 is increased, so that the spring which is connected with the second rotating sleeve 5 and is used as the first elastic element 6 is stretched; the first connecting portion of the upper end of the first rotating sleeve 4 swings rightwards to compress the other spring connected with the first rotating sleeve 4, deformation energy storage occurs, the second connecting portion of the lower end of the corresponding second rotating sleeve 5 swings leftwards, the second connecting portion of the upper end swings rightwards, and the second rotating sleeve 5 and the second rotating shaft 3 synchronously move clockwise.
The artificial limb has the following processes of damping and energy storage structure and energy storage release: as shown in fig. 1, 2 and 4, when the driving force applied to the connecting member 13 by the driving end 11 is released, the spring of the first elastic member 6, which is stretched relative to the housing 1 during the energy storage process, is restored (the spring connects the first connecting portion at the lower end of the first rotating sleeve 4 and the second connecting portion at the upper end of the second rotating sleeve 5), so that the distance between the first connecting portion at the lower end of the first rotating sleeve 4 and the second connecting portion at the upper end of the second rotating sleeve 5 is shortened, and the first connecting portion at the lower end of the first rotating sleeve 4 is swung to the right; the other spring of the first elastic member 6 compressed in the energy storage process is restored (the spring connects the first connection part at the upper end of the first rotating sleeve 4 and the second connection part at the lower end of the second rotating sleeve 5), so that the distance between the first connection part at the lower end of the first rotating sleeve 4 and the second connection part at the upper end of the second rotating sleeve 5 is increased, and the first connection part at the lower end of the first rotating sleeve 4 swings to the right;
under the action of the spring, the second connecting part at the lower end of the corresponding second rotating sleeve 5 swings rightwards, and the second connecting part at the upper end swings leftwards, namely, the second rotating sleeve 5 and the second rotating shaft 3 synchronously move anticlockwise relative to the shell 1; corresponding shell 1 absolute motion is for rotating towards clockwise, drives its absolute motion direction of first pivot 2 and for upwards translating along certain angle slope to drive connecting piece 13 upwards translation, and then drive end 11 upward movement, accomplish the energy storage and release.
The first rotating shaft 2 and the second rotating shaft 3 penetrate through two opposite end faces of the shell 1 so as to be convenient for assembly with other structures. The first and second shafts 2 and 3 are oppositely disposed near the edges of the housing 1, respectively. In order to ensure the synchronism of the rotation of the first rotating shaft 2 and the first rotating sleeve 4, and the rotation of the second rotating shaft 3 and the second rotating sleeve 5, the shaft holes of the first rotating sleeve 4 and the second rotating sleeve 5 are square, and the cross sections of the first rotating shaft 2 and the second rotating shaft 3 are also square.
In order to facilitate the installation of the spring, as shown in fig. 2, the two first connecting portions of the first rotating sleeve 4 and the two second connecting portions of the second rotating sleeve 5 are respectively formed with an installation hole at the end thereof. Specifically, the mounting holes at the upper end of the first rotating sleeve 4 and the lower end of the second rotating sleeve 5 are formed in the inner side, the mounting holes at the lower end of the first rotating sleeve 4 and the upper end of the second rotating sleeve 5 are formed in the outer side, the rings at two ends of one spring are respectively connected with the upper end of the first rotating sleeve 4 and the lower end of the second rotating sleeve 5 through the screws 7 arranged in the mounting holes, and the rings at two ends of the other spring are respectively connected with the lower end of the first rotating sleeve 4 and the upper end of the second rotating sleeve 5 through the screws 7 arranged in the mounting holes, so that one spring is arranged on the upper side, and the other spring is arranged on the lower side.
In order to further improve the shock attenuation effect first commentaries on classics cover 4 with between the inner wall of shell 1 and the second commentaries on classics cover 5 with be equipped with the arc block rubber as buffer gear 8 between the inner wall of shell 1, the both sides of arc block rubber respectively with the outer wall of first commentaries on classics cover 4 and the inner wall of shell 1 and the outer wall of second commentaries on classics cover 5 and the inner wall laminating setting of shell 1, and fixed with the inner wall of shell 1.
When the first rotating shaft 2 is acted by vertical downward pressure, acting force rotating around the second rotating shaft 3 anticlockwise is applied to the shell 1, the first rotating shaft 2, the first rotating sleeve 4, the second rotating sleeve 3 and the second rotating sleeve 5 rotate clockwise relative to the shell 1, namely the lower end of the first rotating sleeve 4 swings leftwards, one spring connected with the first rotating sleeve is stretched, the upper end swings rightwards, the other spring connected with the first rotating sleeve is compressed, the lower end of the second rotating sleeve 5 swings leftwards, the other spring connected with the second rotating sleeve is compressed, the upper end swings rightwards, the spring connected with the second rotating sleeve is stretched, the two springs are stretched and compressed respectively, and deformation energy storage is generated.
First commentaries on classics cover 4 extrudes the left block rubber when rotating, and the second changes cover 5 and extrudes the block rubber on right side when rotating, and the block rubber plays damping shock attenuation effect, further improves the shock attenuation effect.
A prosthesis comprises the shock-absorbing and energy-storing device, a first rotating shaft 2 and a second rotating shaft 3 are arranged in parallel, the first rotating shaft 2 is connected with a leg part serving as a driving end 11, and the second rotating shaft 3 is connected with a foot part serving as a loading end 12 and is positioned in the same horizontal plane. When the walking chair is used for walking, the dead weight of a human body acts on the first rotating shaft 2 to enable the first rotating shaft 2 to have a downward movement trend, acting force is applied to the shell 1 to enable the shell 1 to rotate anticlockwise, the first rotating shaft 2, the first rotating sleeve 4, the second rotating shaft 3 and the second rotating sleeve 5 rotate clockwise relative to the shell 1, and the pair of springs respectively perform stretching and compressing functions to store energy and absorb shock. And meanwhile, two rubber blocks arranged between the first rotating sleeve 4 and the shell 1 and between the second rotating sleeve 5 and the shell 1 are compressed, so that the buffering and damping effects are further improved.
As shown in fig. 3, in the second embodiment of the shock-absorbing and energy-storing structure, the first rotating sleeve 4 and the second rotating sleeve 5 are symmetrically arranged, and the first connecting portion and the second connecting portion are close to each other, and a gap is reserved, that is, the first rotating sleeve 4 and the second rotating sleeve 5 are spliced to form a concentric circle with the housing 1, one end of the coil spring serving as the second elastic member 10 penetrates through the gap between the first connecting portion of the first rotating sleeve 4 and the second connecting portion of the second rotating sleeve 5, and a bending limiting portion 9 is formed at the end portion close to the edge of the housing 1, a bolt is arranged in the bending limiting portion 9 and fixed with the housing 1, and the other end of the coil spring is fixed at the center of the housing 1. A pair of coil springs are arranged in central symmetry.
When the first rotating shaft 2 is under the action of downward pressure, the shell 1 rotates anticlockwise around the second rotating shaft 3 under the action of the first rotating shaft 2, the first rotating sleeve 4, the second rotating shaft 3 and the second rotating sleeve 5 rotate clockwise relative to the shell 1, and the upper part of the first rotating sleeve 4 applies acting force to the coil spring at the upper part to rotate clockwise, so that deformation energy storage is generated. Meanwhile, the lower part of the second rotating sleeve 5 applies acting force to the coil spring at the lower part, so that the coil spring rotates clockwise and generates deformation energy storage. First commentaries on classics cover 4 and second commentaries on classics cover 5 squeeze the rubber block on left side and right side respectively when rotating, and the rubber block plays damping cushioning effect, further improves cushioning effect.
As an alternative embodiment, the cross section of the first and second shafts 2, 3 may also be any of a rectangle or a triangle or a polygon.
As an alternative embodiment, one coil spring may be provided, and both ends of the coil spring are fixed to the housing 1 through gaps between the first and second connection portions of the first and second hubs 4 and 5, respectively.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. A shock-absorbing and energy-storing structure, comprising:
a housing (1);
the first rotating shaft (2) and the second rotating shaft (3) are arranged in the shell (1) in a non-coaxial mode, and at least one end of each of the first rotating shaft (2) and the second rotating shaft (3) penetrates through the shell (1);
the first rotating sleeve (4) is arranged on the first rotating shaft (2) and is provided with a first connecting part extending along the circumferential direction of the shell (1);
energy storage mechanism locates the first connecting portion of first commentaries on classics cover (4) with between second pivot (3) when first pivot (2) receive drive power, shell (1) winds second pivot (3) rotate, first pivot (2) drive first commentaries on classics cover (4) are relative shell (1) antiport, energy storage mechanism receives the effort that the first connecting portion of first commentaries on classics cover (4) was applyed takes place the deformation energy storage.
2. The shock-absorbing and energy-storing structure according to claim 1, further comprising a second rotating sleeve (5) arranged on the second rotating shaft (3), wherein the second rotating sleeve (5) has a second connecting portion extending along the circumferential direction of the housing (1), when the first rotating shaft (2) is not driven, the first rotating sleeve (4) and the second rotating sleeve (5) are symmetrically arranged relative to the center of the housing (1), and the energy-storing mechanism is a pair arranged between the first connecting portion and the second connecting portion.
3. The structure of claim 2, wherein the energy storage mechanism is two first elastic members (6) respectively connected with the first rotating sleeve (4) and the second rotating sleeve (5) in a cross manner, when the first rotating shaft (2) drives the first rotating sleeve (4) to rotate, the second rotating shaft (3) and the second rotating sleeve (5) rotate in the same direction, and the two first elastic members (6) are compressed and stretched respectively.
4. A shock-absorbing energy-storing structure according to claim 3, wherein said first elastic member (6) is a spring.
5. The shock-absorbing and energy-storing structure as claimed in claim 3 or 4, wherein a mounting hole is formed on each of the first connecting portion and the second connecting portion, and two ends of the first elastic member (6) are respectively disposed in the mounting holes by fasteners.
6. The shock-absorbing and energy-storing structure according to claim 2, wherein the energy-storing mechanism is two second elastic members (10) which penetrate through the gap between the first connecting portion and the second connecting portion and are fixed at two ends of the energy-storing mechanism with the housing (1), when the first rotating shaft (2) drives the first rotating sleeve (4) to rotate, the second rotating shaft (3) and the second rotating sleeve (5) rotate in the same direction, and the two second elastic members (10) deform in opposite directions.
7. The shock-absorbing energy-storing structure according to claim 6, wherein said second elastic member (10) is a coil spring.
8. A shock-absorbing energy-storing structure according to any one of claims 2-7, characterized in that a buffer mechanism (8) is provided between the first swivel sleeve (4) and the inner wall of the housing (1) and between the second swivel sleeve (5) and the inner wall of the housing (1).
9. The shock-absorbing energy-storing structure according to claim 8, wherein said cushioning mechanism (8) is an arc-shaped rubber block.
10. A prosthesis comprising a shock-absorbing energy-storing structure according to any one of claims 1 to 9, wherein said first rotation shaft (2) and said second rotation shaft (3) are arranged in parallel.
CN202010502887.XA 2020-06-04 2020-06-04 Shock attenuation energy storage structure and have its artificial limb Active CN111839845B (en)

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CN111839845B CN111839845B (en) 2023-03-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050261783A1 (en) * 2004-05-19 2005-11-24 Otto Bock Healthcare Lp Multi-axial fitting with shock absorption for prosthetic foot
CN206460883U (en) * 2016-12-30 2017-09-01 浙江兴田电气有限公司 A kind of stored energy mechanism of operation device and a kind of operation device
CN108420575A (en) * 2018-03-23 2018-08-21 厦门大学嘉庚学院 Wearing artificial limb for assisting crouching seat and application method
CN111084681A (en) * 2018-10-24 2020-05-01 北京工道风行智能技术有限公司 Hydraulic bionic ankle joint
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