CN2544700Y - Air cylinder for knee joint of disabled people - Google Patents
Air cylinder for knee joint of disabled people Download PDFInfo
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- CN2544700Y CN2544700Y CN 02267236 CN02267236U CN2544700Y CN 2544700 Y CN2544700 Y CN 2544700Y CN 02267236 CN02267236 CN 02267236 CN 02267236 U CN02267236 U CN 02267236U CN 2544700 Y CN2544700 Y CN 2544700Y
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Abstract
The utility model relates to a control device for a prosthetic knee joint. The utility model is used as human prosthetic knee joint for the disabled people. The utility model includes: a cylinder main body 1, a piston rod 3, a main spring 4 and a piston 3; wherein, the piston 3 is positioned in the cylinder main body 1, so the interior is divided into a first chamber 13 and a second chamber 14; one end of the piston rod 3 is sleeved on an upper cover 11 of the cylinder main body 1 from the side to be extended outward, so as to facilitate the connection with the knee joint; the utility model is characterized in that: the outer side wall of the cylinder main body 1 is only provided with a gas channel 5 which communicates the second chamber 14 and the first chamber 13 of the interior of the cylinder main body, and a regulating valve 6 which can carry out the compound regulation of the gas flow with the different directions. The gas channel 5 adopts a ladder-hole structure, and the regulating valve 6 adopts a set of screws and a movable single valve needle structure. The utility model solves the problems of complicated structure and difficult processing of the current existing products. The number of the parts is small, the processing is easy, the failure rate is low and the utility model is conductive to the popularization and application.
Description
Affiliated technical field
This utility model relates to pseudocolloid, especially kneed control device.
Background technology
People with disability's knee joint cylinder is the vitals of artificial limb.Because of its complex structure and precision, so price is higher.The disclosed people with disability's knee joint cylinder of Chinese patent CN 2183745Y " structure is adjusted in artifucial limb joint air pressure at a quick pace " is satisfying under the prerequisite of instructions for use, and structure is comparatively simple.It comprises: cartridge type cylinder main body, one end thereof are by cover encloses, and its another end is sealed by lower cover; Piston: this piston is positioned at the inside of cylinder main body, is first Room of loam cake side and second Room of lower cover side with this internal separation; Piston rod: an end and the above-mentioned piston of this piston rod fuse, and its another distolateral loam cake that wears above-mentioned cylinder main body extends so that be connected with knee joint to the outside; Main spring: this main spring places second Room of above-mentioned cylinder body interior, and one end thereof is being supported above-mentioned piston, and above-mentioned lower cover is being supported in its another end; It is characterized in that: there are throttle pipe and non-return pipe in above-mentioned cylinder main body lateral wall; Two airways are respectively arranged on this throttle pipe and the non-return pipe, be communicated with second Room and first Room of above-mentioned cylinder body interior respectively; The upper end of this throttle pipe and non-return pipe is respectively equipped with voltage regulation screw and speed governing screw and is provided with fixed screw in the lower end of individual non-return pipe.
Summary of the invention
This utility model aims to provide the simple more people with disability's knee joint cylinder of a kind of structure.
The purpose of this utility model realizes by following scheme: a kind of people with disability's knee joint cylinder, and this cylinder comprises: the cylinder main body, this cylinder main body is a cartridge type, and one end thereof is by cover encloses, and its another end is sealed by lower cover; Piston: this piston is positioned at the inside of cylinder main body, is first Room of loam cake side and second Room of lower cover side with this internal separation; Piston rod: an end and the above-mentioned piston of this piston rod fuse, and its another distolateral loam cake that wears above-mentioned cylinder main body extends so that be connected with knee joint to the outside; Main spring: this main spring places second Room of above-mentioned cylinder body interior, and one end thereof is being supported above-mentioned piston, and above-mentioned lower cover is being supported in its another end; It is characterized in that: there is the gas passage of first Room of second Room that is communicated with above-mentioned cylinder body interior and above-mentioned cylinder body interior above-mentioned cylinder main body lateral wall, and this gas passage comprises the control valve of a compound adjusting different directions gas flow.
Described gas passage is: there is a shoulder hole described cylinder main body lateral wall, this shoulder hole comprises three sections of minor diameter, middle diameter and major diameters, the end of reduced diameter section has an airway to be communicated with second Room of described cylinder body interior, the waist of middle diameter segment has an airway to be communicated with first Room of described cylinder body interior, and the enlarged diameter section inwall has female thread; The control valve of the compound adjusting different directions gas flow of a needle with the above-mentioned shoulder hole medium-small diameter of tip alignment Duan Yuzhong diameter segment intersection is bolted in above-mentioned shoulder hole enlarged diameter section inwall.
The control valve of described compound adjusting different directions gas flow comprises: first adjustment screw, the threads engaged of this first adjustment screw lateral surface bottom and described gas passage enlarged diameter section inwall, lateral surface top is for regulating medicated cap, there are three grades of up big and down small ladder holes inside, the inwall of the one-level of described through-hole diameter maximum has female thread, the one-level of diameter minimum wears needle, and intermediary one-level is equipped with the needle spring; One end of above-mentioned needle spring withstands the medicated cap head of above-mentioned needle, and the other end withstands the bottom of second adjustment screw; Above-mentioned second adjustment screw is bolted in the inwall of the one-level of the described through-hole diameter maximum of first adjustment screw.
There is one section taper seat the shoulder hole medium-small diameter Duan Yuzhong diameter segment intersection of described gas passage; The needle point profile of described control valve needle is corresponding with taper seat in the above-mentioned shoulder hole.
People with disability's knee joint cylinder of the present utility model, cylinder main body lateral wall have only one to be communicated with second Room of cylinder body interior and the gas passage of first Room, and the control valve of a compound adjusting different directions gas flow.This gas passage adopts the shoulder hole structure, and control valve adopts cover cartridge screw and active single valve needle construction, and number of spare parts is few, and easily processing and fault rate are minimized, and cost reduces naturally, helps applying.The needle point profile of needle adopts the corresponding circular cone of taper seat in tapering and the gas passage shoulder hole, makes motion adjustment become more meticulous, and is convenient to coordinate artificial limb and stretches with flexing and move.
Description of drawings
, be further described this utility model people with disability knee joint cylinder below in conjunction with drawings and Examples.
Fig. 1 is the structure chart of this utility model people with disability knee joint with an embodiment of cylinder.
Fig. 2 is the rough schematic view of Fig. 1 embodiment when making stretching.
Fig. 3 is that Fig. 1 embodiment makes the flexing rough schematic view in when action.
Fig. 4 is the structure chart of this utility model people with disability knee joint with another embodiment of cylinder.
The specific embodiment
This utility model people with disability knee joint sees also Fig. 1 with the structure of an embodiment of cylinder.
This cylinder comprises:
Cylinder main body 1, this cylinder main body 1 is a cartridge type, and one end thereof is sealed by loam cake 11, and its another end is sealed by lower cover 12; Loam cake 11 and lower cover 12 all are screwed onto on the cylinder main body 1, and use sealing ring 121 sealings.
Piston 2: this piston 2 is positioned at the inside of cylinder main body 1, is first Room 13 of loam cake 11 sides and second Room 14 of lower cover 12 sides with this internal separation; The outer ring surface of piston 2 uses the slipper seal of piston packing 21 realizations and cylinder main body 1 inwall.
Piston rod 3: an end and the piston 2 of this piston rod 3 fuse, and its another distolateral loam cake 11 that wears cylinder main body 1 extends so that be connected with knee joint to the outside; Be the facility of sealing and processing, used one group of 111 pairs of outward extending piston rod 3 of loam cake axle envelope that are bolted in loam cake 11 upper surfaces to do the sealing supporting here.
Main spring 4: this main spring 4 places second Room 14 of above-mentioned cylinder main body 1 inside, and one end thereof is being supported the boss 22 of piston 2 bottoms, and its another end falls in the shrinkage pool 122 at lower cover 12 tops and supporting its bottom.
Have one to be communicated with second Room 14 of cylinder main body 1 inside and the gas passage 5 of first Room 13 in cylinder main body 1 lateral wall, this gas passage 5 comprises the control valve 6 of a compound adjusting different directions gas flow.
The structure of gas passage 5 is: in cylinder main body 1 lateral wall one shoulder hole 50 is arranged, this shoulder hole 50 comprises three sections of minor diameter, middle diameter and major diameters, the end of reduced diameter section has a downtake 51 to be communicated with second Room 14 of cylinder main body 1 inside, the waist of middle diameter segment has one to go up first Room 13 that airway 52 is communicated with cylinder main bodys 1 inside, and the enlarged diameter section inwall has female thread; The control valve 6 of compound adjusting different directions gas flow is bolted in shoulder hole 50 enlarged diameter section inwalls.
People with disability's knee joint of present embodiment please refer to Fig. 2 with the working condition of cylinder when making stretching.Because artificial limb lifts, main spring 4 is not subjected to external force and stretches and reset, and promotes piston 2 to move upward, and the gas in first Room 13, is illustrated as arrow among the figure to 14 motions of second Room through gas passage 5.Regulate first adjustment screw 61, promptly the may command gas flow that is to say the adjustment of realization to stretching speed.
Working condition when people with disability's knee joint of present embodiment is done the flexing action with cylinder sees also Fig. 3.Artificial limb lands to be made flexing and presses and to step work, promoting piston 2 moves downward, main spring 4 is subjected to force compresses, gas in second Room 14 moves to first Room 13 through gas passage 5, the needle point of needle 64 is subjected to the pressure of the taper seat 53 upper punch air-flows of gas passage 5 shoulder holes 50 medium-small diameter Duan Yuzhong diameter segment intersections this moment, promote 63 compressions of needle spring, the needle point of needle 64 and the gap between the taper seat 53 are increased; Air-flow is accelerated, and illustrates as arrow among the figure.Regulate second adjustment screw 62, can adjust the degree of needle spring 63 compressions, and then control upper punch gas flow speed, realize adjustment to the knee sprung speed of action.Clearly, the needle point profile of needle 64 adopts the corresponding circular cone of taper seat in tapering and the shoulder hole 50, makes the degree of needle spring 63 compressions and the sensitivity of knee sprung speed of action variation diminish, and this adjustment is become more meticulous.
This utility model people with disability knee joint sees also Fig. 4 with the structure of another embodiment of cylinder.Contrast previous embodiment, their main difference is that gas passage 5 becomes to be inverted with previous embodiment with control valve 6 under it and concerns in the structure of this embodiment.In this example, the end of shoulder hole 50 reduced diameter sections of gas passage 5 is by first Room 13 of last airway 52 connection cylinder main bodys 1 inside, and the waist of middle diameter segment is communicated with second Room 14 of cylinder main body 1 inside, and control valve 6 is bolted in the enlarged diameter section inwall.The action direction of needle 64 in gas passage 5 is opposite with previous embodiment, so the effect of two adjustment screw of control valve 6 is also opposite with previous embodiment.When the present embodiment cylinder is done the flexing action, artificial limb lands to be made flexing and presses and to step work, piston 2 moves downward, main spring 4 is subjected to force compresses, gas in second Room 14 moves to first Room 13 through gas passage 5, regulate first adjustment screw 61, promptly the may command gas flow that is to say the adjustment of realization to the flexing speed of action.Cylinder is when making stretching, because artificial limb lifts, main spring 4 is not subjected to external force and stretches to reset, promoting piston 2 moves upward, gas in first Room 13 moves to second Room 14 through gas passage 5, the needle point of needle 64 is subjected to the pressure of taper seat 53 down wash of gas passage 5 shoulder holes 50 medium-small diameter Duan Yuzhong diameter segment intersections this moment, promotes 63 compressions of needle spring, and the needle point of needle 64 and the gap between the taper seat 53 are increased; Air-flow is accelerated, and regulates second adjustment screw 62, can adjust the degree of needle spring 63 compressions and then control the flowing velocity of qi of chong channel ascending adversely body down, realizes the adjustment to stretching speed.
Claims (4)
1. people with disability's knee joint cylinder, this cylinder comprises: cylinder main body (1), this cylinder main body (1) is a cartridge type, and one end thereof is by loam cake (11) sealing, and its another end is sealed by lower cover (12); Piston (2): this piston (2) is positioned at the inside of cylinder main body (1), is first Room (13) of loam cake side and second Room (14) of lower cover side with this internal separation; Piston rod (3): end of this piston rod (3) and above-mentioned piston (2) fuse, and its another distolateral loam cake (11) that wears above-mentioned cylinder main body (1) extends so that be connected with knee joint to the outside; Main spring (4): this main spring (4) places inner second Room (14) of above-mentioned cylinder main body (1), and one end thereof is being supported above-mentioned piston (2), and above-mentioned lower cover (12) is being supported in its another end; It is characterized in that: there is the gas passage (5) of first Room (13) of second Room (14) that is communicated with above-mentioned cylinder body interior and above-mentioned cylinder body interior above-mentioned cylinder main body (1) lateral wall, and this gas passage (5) comprises the control valve (6) of a compound adjusting different directions gas flow.
2. people with disability's knee joint cylinder according to claim 1, it is characterized in that: described gas passage (5) is: there is a shoulder hole (50) described cylinder main body (1) lateral wall, this shoulder hole (50) comprises three sections of minor diameter, middle diameter and major diameters, the end of reduced diameter section has an airway (51) to be communicated with second Room (14) of described cylinder body interior, the waist of middle diameter segment has an airway (52) to be communicated with first Room (13) of described cylinder body interior, and the enlarged diameter section inwall has female thread; The control valve (6) of the compound adjusting different directions gas flow of a needle (64) with the above-mentioned shoulder hole of tip alignment (50) medium-small diameter Duan Yuzhong diameter segment intersection is bolted in above-mentioned shoulder hole (50) enlarged diameter section inwall.
3. people with disability's knee joint cylinder according to claim 2, it is characterized in that: the control valve (6) of described compound adjusting different directions gas flow comprises: first adjustment screw (61), the threads engaged of this first adjustment screw (61) lateral surface bottom and described gas passage (5) enlarged diameter section inwall, lateral surface top is for regulating medicated cap, there are three grades of up big and down small ladder holes inside, the inwall of the one-level of described through-hole diameter maximum has female thread, the one-level of diameter minimum wears needle (64), and intermediary one-level is equipped with needle spring (63); One end of above-mentioned needle spring (63) withstands the medicated cap head of above-mentioned needle (64), and the other end withstands the bottom of second adjustment screw (62); Above-mentioned second adjustment screw (62) is bolted in the inwall of the one-level of the described through-hole diameter maximum of first adjustment screw (61).
4. people with disability's knee joint cylinder according to claim 3 is characterized in that: there is one section taper seat (53) shoulder hole (50) the medium-small diameter Duan Yuzhong diameter segment intersection of described gas passage (5); The needle point profile of described control valve needle (64) is corresponding with taper seat (53) in the above-mentioned shoulder hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267236 CN2544700Y (en) | 2002-05-24 | 2002-05-24 | Air cylinder for knee joint of disabled people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267236 CN2544700Y (en) | 2002-05-24 | 2002-05-24 | Air cylinder for knee joint of disabled people |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544700Y true CN2544700Y (en) | 2003-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267236 Expired - Fee Related CN2544700Y (en) | 2002-05-24 | 2002-05-24 | Air cylinder for knee joint of disabled people |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544700Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI616196B (en) * | 2016-11-10 | 2018-03-01 | Vacuum suction and pressure regulated pneumatic cylinder | |
| CN108071733A (en) * | 2016-11-15 | 2018-05-25 | 肯达路企业股份有限公司 | Vacuum attraction and pressure adjust pneumatic cylinder |
| CN108386411A (en) * | 2018-03-19 | 2018-08-10 | 深圳市伙伴气动精密机械有限公司 | Support cylinder and its working method |
| CN108561367A (en) * | 2017-12-13 | 2018-09-21 | 深圳市罗伯医疗机器人研究所 | A kind of integrated sliding-piston type variable damping force hydraulic cylinder |
-
2002
- 2002-05-24 CN CN 02267236 patent/CN2544700Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI616196B (en) * | 2016-11-10 | 2018-03-01 | Vacuum suction and pressure regulated pneumatic cylinder | |
| CN108071733A (en) * | 2016-11-15 | 2018-05-25 | 肯达路企业股份有限公司 | Vacuum attraction and pressure adjust pneumatic cylinder |
| CN108071733B (en) * | 2016-11-15 | 2019-09-17 | 肯达路企业股份有限公司 | Vacuum attraction and pressure adjust pneumatic cylinder |
| CN108561367A (en) * | 2017-12-13 | 2018-09-21 | 深圳市罗伯医疗机器人研究所 | A kind of integrated sliding-piston type variable damping force hydraulic cylinder |
| CN108386411A (en) * | 2018-03-19 | 2018-08-10 | 深圳市伙伴气动精密机械有限公司 | Support cylinder and its working method |
| CN108386411B (en) * | 2018-03-19 | 2019-08-30 | 深圳市伙伴气动精密机械有限公司 | Support cylinder and its working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |