CN2815304Y - Artificial limb knee joint with buffer effect - Google Patents
Artificial limb knee joint with buffer effect Download PDFInfo
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- CN2815304Y CN2815304Y CN 200520001440 CN200520001440U CN2815304Y CN 2815304 Y CN2815304 Y CN 2815304Y CN 200520001440 CN200520001440 CN 200520001440 CN 200520001440 U CN200520001440 U CN 200520001440U CN 2815304 Y CN2815304 Y CN 2815304Y
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- connecting rod
- knee
- axle center
- screw
- spring
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Abstract
The utility model discloses an artificial limb knee joint with a buffering effect. The utility model mainly comprises a knee head, a linkage device, a connecting rod, a buffering body, a resetting device with elastic force and a knee body component, wherein the resetting device with elastic force comprises a support bracket of the connecting rod, a first top sleeve, a first spring, a first regulating screw, a second top sleeve, a second spring, a blocking piece and a second regulating screw. The knee head is used for linking upwards with the thigh, and the knee body at the lower edge is used for linking with the shank and the foot sole at the lower position. The resetting device with elastic force of the utility model can alter the angle between the connecting rod and the support bracket of the connecting rod through the design of the connecting rod in the knee joint, the support bracket of the connecting rod and the buffering body component, so that the knee joint can move to a fixed position and the sagging or kneeling of the shank can be avoided. Besides, when the user walks on a slope, the buffering body can generate the effects of buffering and shock absorption at the angle of the knee joint after the knee joint is bent.
Description
Technical field
This utility model belongs to the artificial limb knee-joint technical field, and is particularly a kind of when knee joint is moved, and in predefined curved angle, can provide the artificial limb knee-joint that absorbs impulsive force by connecting rod and connecting rod rack.
Background technology
Along with the prosperity of medical science, in medical practice and technically also progress greatly day by day.Disabled can adopt artificial limb knee-joint to assist to get well and strengthen ability to act.Because of artificial limb knee-joint belongs to mechanical structure, should meet each joint action of human body and shape thereof in design as far as possible, also should be with the design of human body natural's joint shape size direction, to reach the ability to act that can meet nature.
Existing artificial limb knee-joint structure can be announced No. 549074 " artificial limb knee-joint " middle citation case referring to Taiwan and say, is to make one in knee joint structure upper end to be undertaken in disabled's thigh place, and the lower end then is connected in shank and foot is used.This structure is many to form with combined type connecting rod assembly, provide a simulation knee-sprung effect to reach, and down end link is provided with a cushion block, when connecing by top action link rod and lower edge that the buffering connecting rod of establishing is positioned near linear and during past direction, this case structure presents following operational deficiencies:
Land and when being subjected to an impulsive force as stretching when knee joint, this cushion block of pressing though this action link rod can be conflicted, thus the effect of absorption along foot's direction impulsive force is provided.But the effect of its absorbing vibration, on the whole be under foot and the almost straight state of knee joint, and for when the level walking, can show and allow knee joint near linear angle land the shock-absorbing effect is provided to carry foot, and when when descending is walked, with sole under the natural walking states when landing, the situation that need be an angle and curved, obviously the shock-absorbing effect of this structure can't be brought into play, and between linkage because of reaching fixing, to allow the knee joint connecting rod produce curved down suddenly when walking or go down on one's knees and wait dangerously, also will cause disabled's generation inconvenience part when the walking slope in the hillside fields.In sum, cause the design that the inventor improves existing knee joint buffer structure, expectation presents with this utility model knee joint buffer structure and more tends to nature action mode for this reason.
Summary of the invention
In view of existing artificial limb knee-joint has complete not to the utmost as mentioned above part, the inventor feels existing knee joint deeply under buffer operation and the not good situation of shock-absorbing effect, can't effectively bring into play the shock-absorbing effect of its buffer body on the walking slope, and the generation burst is curved down or the dangerous play puzzlement part of going down on one's knees, the artificial limb knee-joint of one improvement structure is provided for this reason, can be when reaching walking with effects such as fixing and buffering shock-absorbings, it is starting point that expectation can be benefited the disabled with this utility model structure Design characteristics, also amass the experience of being engaged in relevant industries in the inventor for many years, and, finally design a kind of artificial limb knee-joint with buffering effect through studying for a long period of time and testing down.
This utility model main purpose provides a kind of artificial limb knee-joint with buffering effect, when in when walking knee joint bending angle backward, in play, swaying legs action or when standing, change the angle of connecting rod, connecting rod rack by flexibility reversion device, make knee joint enter the fixed position, and avoid shank to produce the sagging or precarious position of going down on one's knees, and can be when the walking hillside fields, with the angle behind the knee joint bending, by producing buffering shock-absorbing effect between buffer body.
For reaching above-mentioned purpose, the artificial limb knee-joint of this utility model design, its primary structure includes: a knee head, a linkage, a connecting rod, a buffer body, an elastic force cover returns a device and a knee body assembly.Elastic force covers returns device to comprise connecting rod rack, the first top cover, first spring, the first adjustment screw, the second top cover, second spring, catch, the second adjustment screw.This knee head is used for upwards connecting the thigh place, and the knee body of lower edge then is used to connect shank and below foot bottom in addition.
Described connecting rod is sleeved on knee head inner groovy through first axle center, utilize first holding screw that first axle center is fixed, first arc groove of connecting rod is placed the elastic force piece of contact, connecting rod below axle center hole is then cooperated with the circular protruding pinna dead eye of connecting rod rack both sides, run through with second holding screw through second axle center and to fix, the installing first top cover in the connecting rod rack tilted cylindrical envelope body, first spring and first is adjusted screw, adjust bolt on the collocation connecting rod, allow connecting rod have the localized ability of involution, be connected the wing on its axle center hole of the block of connecting rod rack and the knee body and rabbet the 3rd axle center, locate with the 3rd holding screw in the 3rd axle center, knee head and the set dead eye of knee body through the fit needle bearing through rabbeting the 4th axle center, both sides interlock with the arc sheet and establish and screwed togather by plural tack hexagon socket head cap screw, buffer body by excellent power glue making, seized on both sides by the arms between arc groove below the connecting rod rack and knee body upper limb arc groove, be positioned at the interplane top trepanning of connection on the knee body, the system thread is adjusted screw for second in the trepanning of top, catch, second spring and the second top cover institute are sheathed, cover top, second top is located on the connecting rod rack tilted cylindrical envelope body, reaches the effect of buffering shock-absorbing by buffer body in the structure.
This utility model is by the design of buffer body between connecting rod rack, in walking, be in play, swaying legs action or when standing, can utilize spring force control between this support and rack rod, and be rendered as a stationary state, and allow the knee joint of installing help stable walking; When going when walking the hillside fields, can produce buffering shock-absorbing effect by buffer body with the angle behind the knee joint bending, allow disabled's walking manner more trend towards nature.
Description of drawings
Fig. 1 is the three-dimensional system diagram of this utility model structure.
Fig. 2 is the solid combination partial sectional view of this utility model structure.
Fig. 3 is the continuous dynamic schematic diagram of this utility model structure.
Fig. 4 is the continuous dynamic schematic diagram of this utility model structure.
Fig. 5 is the continuous dynamic schematic diagram of this utility model structure.
Fig. 6 is the buffering dynamic schematic diagram of this utility model structure.
Fig. 7 is the embodiment sketch map of this utility model structure.
Among the figure, 10 is the knee head, and 11 is the flange wing, and 12 is inner recess, 13 is dead eye, and 14 is dead eye, and 15 is needle bearing, and 16 is the arc sheet, 20 is connecting rod, and 201 is flange part, and 202 is the elastic force piece, and 21 is axle center hole, 22 is axle center hole, and 23 is screwed hole, and 24 is first holding screw, and 25 for adjusting bolt, 26 for adjusting screw, and 27 is lining, and 28 is packing ring, and 29 is first axle center, 30 is connecting rod rack, and 31 is protruding pinna, and 32 is the tilted cylindrical envelope body, and 321 is the first top cover, 322 is first spring, and 323 is the first adjustment screw, and 33 is dead eye, 34 is second holding screw, and 35 is the 3rd holding screw, and 36 is second axle center, 37 is axle center hole, and 38 is block, and 40 is buffer body, 50 is the knee body, and 51 for connecting the wing, and 52 is dead eye, 53 is the top trepanning, and 531 is the second adjustment screw, and 532 is catch, 533 is second spring, and 534 is the second top cover, and 54 is the 3rd axle center, 55 is needle bearing, and 56 is the 4th axle center, and 57 is arc groove, 58 is dead eye, and 59 is needle bearing, and 60 is the tack hexagon socket head cap screw.
The specific embodiment
Below with regard to structure function of the present utility model, adopt a preferable feasible embodiment, and conjunction with figs. describes in detail, to increase to understanding of the present utility model.
Referring to Fig. 1, this utility model relates to a kind of artificial limb knee-joint with buffering effect, and its primary structure includes: a knee head 10, a linkage (arc sheet 16), a connecting rod 20, a buffer body 40, flexibility reversion device and a knee body 50 assemblies are through combining.Flexibility reversion device comprises that 534, second spring 533 is overlapped on connecting rod rack 30, the first top cover, 321, first spring 322, the first adjustment screw 323, second top, catch 532 and second is adjusted screw 531.This knee head 10 is used for upwards connecting the thigh place, and 50 of the knee bodies of lower edge are used to connect shank and below foot bottom in addition, wherein:
The axle center hole 22 that connecting rod 20 is provided with by the place, below, the protruding pinna 31 upper bearing (metal) holes 33 that both sides, coupler link support 30 upper end are extended, behind 36 perforations of second axle center and fit lining 27, utilize screw on the connecting rod rack 30 both sides protruding pinnas 31, fix second axle center with second holding screw 34, connecting rod 20 and connecting rod rack 30 are linked mutually be one, be provided with in addition on the connecting rod 20 and adjust screw 26, adjusting screw 26 installs for adjusting bolt 25, and the first top cover 321 in the coupler link support 30, make connecting rod 20 energy involutions to the location.
Being positioned near connecting rod rack 30 lower edges is the circumference that arc groove cooperates buffer body 40 cylindricals, below protruding pinna 31 through receiving block 38, these block 38 upper side edges have an axle center hole 37, utilize 54 perforations of the 3rd axle center to be sheathed on the knee body 50 of needle bearing 55 and the axle center hole 37 of connecting rod rack 30, utilize the 3rd holding screw 35 that the 3rd axle center 54 is fixing, allow knee body 50 and connecting rod rack 30 connect to one, it is through hole that block 38 belows have in the tilted cylindrical envelope body 32, in through hole, place first top cover 321 and first spring 322, and by 323 lockings of the first adjustment screw, first adjusts the effect that screw 323 has the elastic force size of regulating spring.
Be positioned at the knee body 50 that the lower end is used to connect shank and below foot bottom, last acies stays the arc groove of establishing 57 to place for buffer body 40, be positioned at limit, knee side dead eye 58, be embedded two side arc slices 16 by needle bearing 59, utilize tack hex(agonal)screw 60 fixing, the connection of this knee body 50 is interplane, other establishes in the top trepanning 53 and is shaped on thread, main for the second adjustment screw 531, catch 532, second spring 533 and the second top cover 534 are set, and the second top cover 534 is located on the tilted cylindrical envelope body 32 of connecting rod rack 30 on the top just, combine a kind of artificial limb knee-joint with buffering effect by above-mentioned member according to combination, its structure can be consulted accompanying drawing 1, three-dimensional system diagram shown in 2 and three-dimensional combination partial sectional view.
Now just cooperate Fig. 1, shown in 2, be illustrated with assembling mode and effect thereof between the linkage buffer body of this utility model and flexibility reversion device member, by the way with connecting rod 20 according to knee head 10 inner recess fits, and adopt first holding screw 24 and first axle center 29 to fix, and connecting rod below axle center hole 22 collocation linings 27, cooperate with the dead eye 33 of another connecting rod rack 30 both sides protruding pinnas 31, fixing by second axle center, 36 fits and second holding screw 34 again, through holes in this moment connecting rod rack tilted cylindrical envelope body 32, adjust the elastic force that screw 323 is controlled first spring 322 by first, with first top cover 321 flange parts 201 that push up to connecting rod 20, make connecting rod 20 activities be subjected to adjusting on the first top cover 321 and the connecting rod restriction of bolt 25, on axle center hole 37 on the block 38 of connecting rod rack and knee body 50, be connected the wing 51 dead eyes 52, utilize the 3rd axle center 54 fits to join, and use the 3rd holding screw 35 that the axle center is fixed, and knee head upper bearing (metal) hole 14 and knee body 50 set dead eyes 58 are by fit needle bearing 59 and after rabbeting the 4th axle center 56, both sides respectively interlock with an arc sheet 16 and establish, and screw togather by plural tack hexagon socket head cap screw 60, be positioned at connecting rod rack below arc groove, with knee body upper limb arc groove 57 buffer body 40 is seized on both sides by the arms, linking the interplane top trepanning 53 placements second adjustment screw 531, catch 532, the spring 533 and the second top cover 534, allow the second top cover 534 rely on the spring forces top to be located at connecting rod rack tilted cylindrical envelope body 32, adjust the sealed buffering connecting rod rack of screw by second and contact to the knee body and link dull and stereotyped place, wing below.Its function has two: one for slow down the impact force that connecting rod rack 30 is produced when playbacking.It is two for adjusting angle of connecting rod rack 30, utilize connecting rod rack 30 and knee head 10 between the two interactive relationship so that adjust to knee brilliance degree.
Connecting rod rack 30: when when standing, this connecting rod rack 30 can be oppressed and to pressing down buffer body 40, because buffer body 40 itself adopts excellent power glue material, be had favorable elasticity, can be suitable play cushioning effect, allow the disability assembler that comfortable use feeling can be arranged.When knee joint in when action, by first spring 322, second spring 533 in connecting rod rack 30 and the knee body 50, first adjusts screw 323, second adjusts screw 531, the first top cover, 321, second top cover 534 and the flexibility reversion device that catch 532 constitutes, allow the knee joint connecting rod be presented on stationary state, can not produce the abrupt bend state of going down on one's knees, and have cushioning effect, when knee joint transfers extended configuration to by bending, can avoid connecting rod rack 30 to produce excessive wobbling action.
Adjust screw: the effect of adjusting screw is to change the elastic force of connecting rod rack inner spring, reaches the effect of easy bending, swing, and then regulates the pressure of connecting rod.
See also among Fig. 3 to Fig. 6 shown in the drawing, now will adopt the continuous dynamic operation enforcement sketch map of this utility model structure the best to be illustrated, by simple steps and dynamic line chart the interlock mode is described, compound mode and label see also shown in Fig. 1 between each member.
As shown in Fig. 3 to Fig. 5, first step is the action that proceeds to two, three steps in kicking away continuously, and belongs to and carry out buffered shock-absorbing action diagram heelstrike extending to the 4th step:
When walking shown in drawing during first step: the downforce when this connecting rod and connecting rod rack are not subjected to walking make the axle center of connecting rod be presented on the location right of dynamic line, and the spring of re-setting device then keeps the normal positioning states of connecting rod; And when walking proceeds to second step: the connecting rod axle center will move to dynamic line position and be a straight line with dynamic line, be urged to connecting rod and connecting rod rack simultaneously, case of bending when presenting walking; When proceeding to third step: the axle center of this connecting rod has moved to the left position of dynamic line, the spring of pressurized also slowly upwards holds this connecting rod in its re-setting device, and then arrival is fixing and buffer position, spring force changes the angle between connecting rod and connecting rod rack, make knee joint enter the fixed position, allow shank not produce sagging or go down on one's knees and buffer status; When connecting rod rack recoils to the 4th step: when crus curvilineum is walked heelstrike or stood, produce the effect that cushions shock-absorbing, reach the safety of installing artificial limb knee-joint disabled walking by buffer body.
Other sees also among Fig. 7 shown in the drawing, is to implement sketch map with the optimal dynamic operation of this utility model structure to be illustrated, and shown in the figure state of Bipedal.
In sum, the artificial limb knee-joint of this utility model design can accomplish the end in view and effect by above-mentioned disclosed structure, and is not disclosed before the application, meets the requirements such as novelty of utility model patent; During use, the creative more patent requirement with practicality of its improved buffering effect.Above-mentioned only is a preferred embodiment of the present utility model, can not with as limiting the scope that this utility model is implemented, all equivalent variations or modifications of being done according to this utility model claim must belong to the scope that this utility model patent contains.
Claims (1)
1, a kind of artificial limb knee-joint with buffering effect is characterized in that: comprise a knee head (10), a linkage, a connecting rod (20), a buffer body (40), a flexibility reversion device, reach knee body (a 50) assembly; Elastic force covers returns device to comprise that (534), second spring (533) are overlapped in connecting rod rack (30), first top cover (321), first spring (322), the first adjustment screw (323), second top, catch, second is adjusted screw (531); Knee head (10) is used for upwards connecting the thigh place, and lower edge knee body (50) is for connecting shank and below foot bottom, wherein:
Described connecting rod (20) is sleeved on knee head (10) inner groovy through first axle center (29), utilize first holding screw (24) that first axle center (29) are fixing, first arc groove of connecting rod (20) is placed the elastic force piece of contact, connecting rod (20) below axle center hole is then cooperated with the circular protruding pinna dead eye of connecting rod rack (30) both sides, run through fixing through second axle center (36) with second holding screw (34), the installing first top cover (321) in connecting rod rack (30) the tilted cylindrical envelope body, first spring (322) and first is adjusted screw (323), collocation connecting rod (20) is gone up and is adjusted bolt, allow connecting rod (20) have the localized ability of involution, be connected the wing on its axle center hole of block of connecting rod rack (30) and the knee body (50) and rabbet the 3rd axle center (54), locate with the 3rd holding screw (35) in the 3rd axle center (54), knee head (10) and the set dead eye of knee body (50) through the fit needle bearing through rabbeting the 4th axle center (56), both sides interlock with the arc sheet and establish and screwed togather by plural tack hexagon socket head cap screw, buffer body (40) by excellent power glue making, seized on both sides by the arms between connecting rod rack (30) below arc groove and knee body (50) upper limb arc groove, be positioned at knee body (50) and go up the interplane top trepanning of connection, the system thread is adjusted screw (531) for second in the trepanning of top, catch, second spring (533) and the second top cover (534) institute are sheathed, second top cover (534) top is located on connecting rod rack (30) the tilted cylindrical envelope body, reaches the effect of buffering shock-absorbing by buffer body in the structure (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001440 CN2815304Y (en) | 2005-01-24 | 2005-01-24 | Artificial limb knee joint with buffer effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001440 CN2815304Y (en) | 2005-01-24 | 2005-01-24 | Artificial limb knee joint with buffer effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2815304Y true CN2815304Y (en) | 2006-09-13 |
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ID=36995105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001440 Expired - Fee Related CN2815304Y (en) | 2005-01-24 | 2005-01-24 | Artificial limb knee joint with buffer effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2815304Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427951B (en) * | 2007-11-07 | 2011-01-12 | 郑嘉宝 | Impact resistant knee joint structure |
| CN103027770A (en) * | 2011-09-30 | 2013-04-10 | 肯达路企业有限公司 | Four-link buffer oil pressure knee joint |
| CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
-
2005
- 2005-01-24 CN CN 200520001440 patent/CN2815304Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427951B (en) * | 2007-11-07 | 2011-01-12 | 郑嘉宝 | Impact resistant knee joint structure |
| CN103027770A (en) * | 2011-09-30 | 2013-04-10 | 肯达路企业有限公司 | Four-link buffer oil pressure knee joint |
| TWI450711B (en) * | 2011-09-30 | 2014-09-01 | ||
| CN103027770B (en) * | 2011-09-30 | 2015-03-25 | 肯达路企业有限公司 | Four-link buffer oil pressure knee joint |
| CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20120124 |