CN202288540U - Pneumatic knee disarticulation knee-joint - Google Patents
Pneumatic knee disarticulation knee-joint Download PDFInfo
- Publication number
- CN202288540U CN202288540U CN2011203645749U CN201120364574U CN202288540U CN 202288540 U CN202288540 U CN 202288540U CN 2011203645749 U CN2011203645749 U CN 2011203645749U CN 201120364574 U CN201120364574 U CN 201120364574U CN 202288540 U CN202288540 U CN 202288540U
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- knee
- joint
- knee joint
- pneumatic cylinder
- disconnected
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Abstract
The utility model relates to a pneumatic knee disarticulation knee-joint. The pneumatic knee disarticulation knee-joint is used for efficiently solving the problems that a joint part is used for adjusting the supporting period stability and a swinging period control function, the adjusting process is more flexible and convenient as well as stable and reliable, the flexibility is high, the motion damping is small, the swinging amplitude is large, and the knee-joint can freely stretch and is suitable for the walking at different speeds. According to the technical scheme, an upper joint part and a lower joint part are flexibly connected with each other by a front connecting rod and a rear connecting rod through a pin shaft and a bearing, thereby forming a four-connecting-rod mechanism; an adjuster is arranged in the upper joint part; a bumper block is arranged in the front middle position of the rear connecting rod; the upper end of a pneumatic cylinder is connected with a forward extending third end of the rear connecting rod; the lower end of the pneumatic cylinder is connected with the lower end of the lower joint part; the lower joint part is connected with a connecting plate; a knee is arranged in front of the upper joint part; and a connecting plate for a receiving chamber is arranged on the upper joint part. The pneumatic knee disarticulation knee-joint is flexible, convenient, stable and reliable; the bending and stretching angles of the joint can be adjusted; the disabled is convenient to use the pneumatic knee disarticulation knee-joint; and the economic and social benefits are excellent.
Description
Technical field
This utility model relates to artificial limb, particularly is mainly used in knee joint and leaves disconnected knee joint from the air pressure knee joint of the long patients with amputation installation artificial limb of break amputation and thigh deformed limb.
Background technology
Domestic existing Knee connected joint all is to stretch spring and help machinerys such as stretching actuator to regulate kneed stretching, extension and flexing through helping, thereby reaches the support phase stability and the shaking peroid control function in control joint; But because the problem that exists on the structure; Dumb in the use, reliability is poor, is not suitable for the walking of friction speed; Therefore, its improvement and innovate imperative.
Summary of the invention
To above-mentioned situation; For overcoming the defective of prior art; The purpose of this utility model just provides a kind of air pressure knee joint from disconnected knee joint, controls the flexing and the rate of stretch in joint with pneumatic cylinder, can effectively solve the joint body support phase stability and shaking peroid control function are regulated; Can make adjustment process more flexible, and can make the motion in joint more reliable and more stable; The motility of air pressure knee joint is high, and kinetic damping is little, and amplitude of fluctuation is big, and artificial limb knee-joint is bent and stretched the limbs freely, and is fit to the problem of the walking of friction speed.
The technical scheme that this utility model solves is, comprises upper joint body, hypozygal body, front rod, back link, actuator, pneumatic cylinder, knee and receptive cavity connecting plate, front rod and back link through bearing pin, bearing upper joint body and hypozygal body activeness link together; Constitute quadric chain; Actuator places in the upper joint body, and a buffer stopper is equipped with in position forward, the middle part of back link, and the pneumatic cylinder upper end links to each other with the 3rd end that back link stretches out forward; The lower ends of pneumatic cylinder lower end and hypozygal body connects; The hypozygal body is connected with terminal pad, and knee is equipped with in upper joint body the place ahead, and the receptive cavity connecting plate is housed on the upper joint body.
This utility model adopts the structural models of four link motion mechanisms, and its characteristics of motion is similar with the physiology knee joint, and center of rotation changes with kneed flexion angle; Control the flexing and the rate of stretch in joint with pneumatic cylinder, can make adjustment process more flexible, and can make the motion in joint more reliable and more stable; The flexing in joint with stretch angle and can regulate, be convenient to the people with disability, make and benefit society, be artificial limb with the innovation on the knee joint, good economic and social benefit is arranged.
Description of drawings
Fig. 1 is the structural profile view of this utility model.
Fig. 2 is the structural profile left view of this utility model.
Fig. 3 is the right view of this utility model.
Fig. 4 is the top view of this utility model.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to this utility model.
Provide by accompanying drawing; This utility model comprises upper joint body, hypozygal body, front rod, back link, actuator, pneumatic cylinder, knee and receptive cavity connecting plate; Front rod 15 links together upper joint body 3 and hypozygal body 10 activeness ground through bearing pin, bearing with back link 12, the formation quadric chain, and actuator 6 places in the upper joint body 3; A buffer stopper 7 is equipped with in position forward, the middle part of back link 12; The pneumatic cylinder upper end links to each other with the 3rd end that back link 12 stretches out forward, and the lower ends of pneumatic cylinder lower end and hypozygal body 10 connects, and hypozygal body 10 is connected with terminal pad 11; Knee 5 is equipped with in upper joint body the place ahead, and receptive cavity connecting plate 1 is housed on the upper joint body 3.
In order to guarantee result of use and easy to maintenance, described upper joint body 3 connects the awl core with receptive cavity connecting plate 1 by semicircle and two set screw 2 connect mutually, can regulate the interior external rotation of joint in use like this;
Be fixedly connected by screw between described knee 5 and the upper joint body 3, promptly filled up the big space between the last hypozygal body, guarantee that again the joint can not cause damage to external decorative material in flexing and stretching process;
Connect mutually by screw 4 between described actuator 6 and the upper joint body 3; Place the actuator 6 in the upper joint body 3 through rotation; Relative position between actuator 6 and the upper joint body 3 is changed, regulate the purpose that knee joint supports phase stability thereby reach;
The buffer stopper 7 that be equipped with position forward, the middle part of described back link 12, joint are when stretching the position, and actuator 6 contacts with buffer stopper 7, and under the flexion of joint, actuator 6 is separated with buffer stopper 7.Become in the process of stretching by flexing in the joint,, can effectively alleviate collision and the impact of moment through buffered effect;
Described pneumatic cylinder back upper place is equipped with and is tightened or loosen regulating spool 8 or regulating valve seat 9; In use; Through tightening or loosening regulating spool or regulating valve seat and can stretch the flexing resistance and swing speed is regulated respectively,, effectively regulate kneed support phase stability and shaking peroid thereby being controlled function to kneed;
Described pneumatic cylinder is to be linked to each other by the 3rd end that protrude forward through screw 13 and back link the pneumatic cylinder upper end with back link 12, and the pneumatic cylinder lower end is connect by the lower ends of screw 14 with the hypozygal body;
Described hypozygal body 10 and terminal pad 11 are to connect screw 16 by four between hypozygal body and the terminal pad to be connected together.
This utility model compared with prior art has following useful technique effect:
1, adopt the structural models of four link motion mechanisms, its characteristics of motion is similar with the physiology knee joint, and center of rotation changes with kneed flexion angle.
2, control the flexing and the rate of stretch in joint with pneumatic cylinder, can make adjustment process more flexible, and can make the motion in joint more reliable and more stable.
3, the flexing in joint and stretching, extension angle can be regulated.Make things convenient for user, make and benefit society, economic and social benefit is remarkable.
Claims (7)
1. an air pressure knee joint is from disconnected knee joint; Comprise upper joint body, hypozygal body, front rod, back link, actuator, pneumatic cylinder, knee and receptive cavity connecting plate, it is characterized in that, front rod (15) and back link (12) through bearing pin, bearing upper joint body (3) and hypozygal body (10) activeness link together; Constitute quadric chain; Actuator (6) places in the upper joint body (3), and a buffer stopper (7) is equipped with in the position forward, middle part of back link (12), and the pneumatic cylinder upper end links to each other with the 3rd end that back link (12) stretches out forward; The lower ends of pneumatic cylinder lower end and hypozygal body (10) connects; Hypozygal body (10) is connected with terminal pad (11), and knee (5) is equipped with in upper joint body the place ahead, and receptive cavity connecting plate (1) is housed on the upper joint body (3).
2. air pressure knee joint according to claim 1 is characterized in that from disconnected knee joint described upper joint body (3) connects the awl core with receptive cavity connecting plate (1) by semicircle and two set screw (2) connect mutually.
3. air pressure knee joint according to claim 1 is characterized in that from disconnected knee joint, is fixedly connected by screw between described knee (5) and the upper joint body (3).
4. air pressure knee joint according to claim 1 is characterized in that from disconnected knee joint, connect mutually by screw (4) between described actuator (6) and the upper joint body (3).
5. air pressure knee joint according to claim 1 is characterized in that from disconnected knee joint, and described pneumatic cylinder back upper place is equipped with and is tightened or loosen regulating spool (8) or regulating valve seat (9).
6. air pressure knee joint according to claim 1 is from disconnected knee joint; It is characterized in that; Described pneumatic cylinder is to be linked to each other by the 3rd end that protrude forward through screw (13) and back link the pneumatic cylinder upper end with back link (12), and the pneumatic cylinder lower end is connect by the lower ends of screw (14) with the hypozygal body.
7. air pressure knee joint according to claim 1 is characterized in that from disconnected knee joint described hypozygal body (10) and terminal pad (11) are to connect screw (16) by four between hypozygal body and the terminal pad to be connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203645749U CN202288540U (en) | 2011-09-27 | 2011-09-27 | Pneumatic knee disarticulation knee-joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203645749U CN202288540U (en) | 2011-09-27 | 2011-09-27 | Pneumatic knee disarticulation knee-joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202288540U true CN202288540U (en) | 2012-07-04 |
Family
ID=46357539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203645749U Expired - Fee Related CN202288540U (en) | 2011-09-27 | 2011-09-27 | Pneumatic knee disarticulation knee-joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202288540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973337A (en) * | 2012-09-25 | 2013-03-20 | 电子科技大学 | Active knee joint structure with function of load-bearing and self-locking |
| CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
-
2011
- 2011-09-27 CN CN2011203645749U patent/CN202288540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973337A (en) * | 2012-09-25 | 2013-03-20 | 电子科技大学 | Active knee joint structure with function of load-bearing and self-locking |
| CN102973337B (en) * | 2012-09-25 | 2015-05-06 | 电子科技大学 | Active knee joint structure with function of load-bearing and self-locking |
| 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: 20120704 Termination date: 20120927 |