CN217828164U

CN217828164U - Adjustable artificial limb ankle joint

Info

Publication number: CN217828164U
Application number: CN202221287925.5U
Authority: CN
Inventors: 顾红坡; 韩如朋; 郎建军
Original assignee: Shijiazhuang Pfick Prosthesis Manufacturing Co ltd
Current assignee: Shijiazhuang Pfick Prosthesis Manufacturing Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-11-18
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to an artificial limb technical field, the artificial limb ankle joint with adjustable it is proposed, it is convenient for carry out nimble rotation adjustment to the artificial foot, can be applicable to most shoes types, including artificial foot and connection leg, the top fixedly connected with ankle axle of artificial foot, connect two fixed plates of bottom fixedly connected with of leg, fixedly connected with pivot between two fixed plates, it is equipped with the change to rotate the cover in the pivot, the connecting block is passed through to the bottom of change, ankle axle fixed connection is in the bottom of connecting block, it is connected with two-way screw rod to rotate between two fixed plates, be provided with drive assembly on the two-way screw rod, the thread cover is equipped with two thread pieces on the two-way screw rod, be provided with between two thread pieces and be used for spacing thread piece not to carry out pivoted spacing subassembly, the left end of thread piece passes through connecting rod fixedly connected with spacing ring, spacing ring sliding sleeve is established in the pivot, seted up on the spacing ring with change assorted entering groove, be provided with supporting component between connection leg and the artificial foot.

Description

Adjustable artificial limb ankle joint

Technical Field

The utility model relates to an artificial limb technical field, concretely relates to artificial limb ankle joint with adjustable.

Background

As is known, internationally, the prosthetic technology is developed from a low-level simple to a high-level complex direction along with the progress of society and scientific technology, in order to improve the practical performance of the prosthetic limb, people utilize all available modern scientific technology to manufacture the prosthetic limb with better performance, and adopt more advanced technology and materials to enable the prosthetic limb to have more perfect performance, wherein the ankle joint is taken as an important functional component in the prosthetic limb product, and an adjustable prosthetic ankle joint is gradually upgraded.

Through retrieval, the utility model with the Chinese patent application number of CN201520620379.6 discloses an adjustable artificial limb ankle joint, which is roughly described as comprising an artificial foot, a T-shaped shaft sleeve, an ankle shaft, a Y-shaped guide rod, an ankle body, an arc-shaped tooth pressure plate, a rotary adjusting sleeve, a directional rectangular pyramid, an inner hexagon bolt and a steel ball spring screw plug; the T-shaped shaft sleeve, the Y-shaped guide rod and the ankle body are connected through the ankle shaft inserted into the ankle shaft through hole; the bottom surface of the arc-shaped tooth pressing disc is provided with bottom edge sawteeth matched with the top edge sawteeth of the ankle body; the rotary adjusting sleeve is sleeved on the top of the arc-shaped tooth pressing plate to adjust the height of the arc-shaped tooth pressing plate, so that the inclination angle of the ankle body is adjusted.

Although the above prior art scheme allows the prosthesis wearer to adjust the angle of the prosthesis joint by himself without the help of others, the adjustment method is simple, but when the prosthesis wearer uses the prosthesis, the adjustment range of the prosthesis is limited, the prosthesis cannot be applied to most shoe types, still has more inconvenience, and is poor in flexibility and practicability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an artificial limb ankle joint with adjustable to prior art's that provides in solving the background art adjustment range is limited, can not be applicable to most shoes types, still has more inconvenience, and the flexibility is relatively poor, the relatively poor problem of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an artificial limb ankle joint with adjustable, includes artificial foot and connects the leg, the top fixedly connected with ankle axle of artificial foot, connect two fixed plates of bottom fixedly connected with of leg, two fixedly connected with pivot between the fixed plate, it is equipped with the swivel to rotate the cover in the pivot, the connecting block is passed through to the bottom of swivel, ankle axle fixed connection is in the bottom of connecting block, rotates between two fixed plates and is connected with two-way screw rod, be provided with on the two-way screw rod and be used for driving two-way screw rod and carry out pivoted drive assembly, and threaded sleeve is equipped with two thread pieces on the two-way screw rod, two be provided with between the thread piece and be used for spacing thread piece not to carry out pivoted spacing subassembly, the left end of thread piece passes through connecting rod fixedly connected with spacing ring, spacing ring slip cap is established in the pivot, seted up on the spacing ring with swivel assorted entering groove, is provided with supporting component between connection leg and the artificial foot.

Preferably, the driving assembly includes a driving rod fixedly connected to a front end of the bidirectional screw, and the driving rod extends to the outside through the fixing plate located at the front side.

Furthermore, the front end of the driving rod is fixedly connected with a rotating button.

Still further, the knob is provided with anti-skidding lines.

As a further scheme of the scheme, the limiting assembly comprises a limiting rod, the limiting rod is fixedly connected between the two fixing plates, and the two thread blocks are sleeved on the limiting rod in a sliding mode.

As a still further scheme of this scheme, the supporting component includes first swivel mount, first swivel mount fixed connection is in the bottom of connecting the leg, and it is connected with the slide cylinder to rotate on the first swivel mount, the bottom slip cover of slide cylinder is equipped with the slide bar, it is connected with the second swivel mount to rotate on the slide bar, second swivel mount fixed connection is on the top of artificial foot.

On the basis of the scheme, a fixing pad is fixedly connected into the inlet groove.

On the basis of the scheme, a chamfer is further arranged on the fixing plate.

(III) advantageous effects

Compared with the prior art, the utility model provides an artificial limb ankle joint with adjustable possesses following beneficial effect:

the utility model discloses in, through rotating the artificial foot, ankle axle and swivel are to suitable position, then rotate through the two-way screw rod of drive assembly drive and drive two screw thread pieces and be close to each other, two screw thread pieces drive connecting rod and spacing ring and are close to each other, until contacting the swivel, can prescribe a limit to the position of countershaft, be convenient for prescribe a limit to the position of screw thread piece through spacing subassembly, be convenient for support the leg of connecting through the supporting component, therefore, this adjustable artificial limb ankle joint, be convenient for carry out nimble rotation adjustment to the artificial foot, can be applicable to most shoes types, and is comparatively convenient, the flexibility is stronger, and the practicality is stronger.

Drawings

Fig. 1 is an exploded perspective view of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the two-way screw, the thread block, the connecting rod and other components of the present invention.

In the figure: 1. a prosthetic foot; 2. an ankle axis; 3. a connecting leg; 4. a fixing plate; 5. a rotating shaft; 6. rotating the ring; 7. connecting blocks; 8. a bidirectional screw; 9. a thread block; 10. a connecting rod; 11. a limiting ring; 12. entering a groove; 13. a drive rod; 14. a rotation knob; 15. A limiting rod; 16. a first swivel mount; 17. a slide cylinder; 18. a slide bar; 19. a second swivel mount; 20. and fixing the cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Please refer to fig. 1-4, an adjustable artificial limb ankle joint, including prosthetic foot 1 and connecting leg 3, the top fixedly connected with ankle shaft 2 of prosthetic foot 1, connect two fixed plates 4 of the bottom fixedly connected with of leg 3, be provided with the chamfer on fixed plate 4, in order to avoid leading to the injury of health owing to careless colliding with, the holistic security of the device has been improved, fixedly connected with pivot 5 between two fixed plates 4, the swivel cover is equipped with swivel 6 in the pivot 5, the connecting block 7 is passed through to the bottom of swivel 6, ankle shaft 2 fixed connection is in the bottom of connecting block 7, be convenient for drive prosthetic foot 1 and ankle shaft 2 rotate, it is connected with two-way screw rod 8 to rotate between two fixed plates 4, be provided with on the two-way screw rod 8 and be used for driving two-way screw rod 8 to carry out pivoted drive assembly, drive assembly includes actuating lever 13, actuating lever 13 fixed connection is at the front end of two-way screw rod 8, actuating lever 13 runs through fixed plate 4 that is located the front side and extends to the external world, the front end fixedly connected with rotatory button 14, be convenient for rotating drive lever 13 to rotate, be provided with anti-skid thread on screw rod 14, it is equipped with two-way screw rod 15 to follow two-way screw rod to be used for the screw rod 15 to follow the screw rod to follow two-way screw rod to follow the displacement of screw rod 9, it is equipped with two-way screw rod 15 when rotating the screw rod 15 and be used for two-way screw rod to rotate the screw rod to follow the screw rod 15 and be used for the screw rod to follow the screw rod 9 and not to rotate the phenomenon, it is equipped with two-way screw rod 15 to rotate the screw rod to follow the screw rod 15 to rotate the screw rod.

Further, the left end of the screw block 9 is fixedly connected with a limiting ring 11 through a connecting rod 10, the limiting ring 11 is slidably sleeved on the rotating shaft 5, an entering groove 12 matched with the rotating ring 6 is formed in the limiting ring 11, a fixing pad 20 is fixedly connected in the entering groove 12, and the position of the rotating ring 6 is convenient to fix so as to prevent the rotating ring 6 from rotating due to displacement, a rotating knob 14 is rotated to drive a driving rod 13 to rotate, the driving rod 13 rotates to drive a bidirectional screw 8 to rotate, the bidirectional screw 8 rotates to drive two screw blocks 9 to slide on a limiting rod 15 in a manner of mutually approaching or mutually departing, so as to drive two connecting rods 10 and two limiting rings 11 to mutually approach or separate, so as to facilitate the position of the rotating ring 6 to limit, a supporting component is arranged between the connecting leg 3 and the prosthetic foot 1, the supporting component comprises a first rotating seat 16, the first rotating seat 16 is fixedly connected to the bottom end of the connecting leg 3, a sliding cylinder 17 is rotatably connected to the first rotating seat 16, a sliding rod 18 is slidably sleeved at the bottom end of the sliding cylinder 17, a second rotating seat 19 is rotatably connected to the sliding rod 18, the top end of the second rotating seat 19 is fixedly connected to the prosthetic foot 1, the sliding seat 18 and the sliding cylinder 17, and the sliding cylinder 17 are convenient to rotate, and the sliding cylinder 17, and the sliding seat is convenient to rotate, and the sliding cylinder 17, and the sliding seat, and the sliding cylinder 17.

In summary, when the adjustable artificial ankle joint is used, firstly, the adjustable artificial ankle joint is placed at a place to be used, the artificial foot 1 is rotated, the ankle shaft 2 is driven by the artificial foot 1 to rotate, the swivel 6 is driven by the ankle shaft 2 to rotate to a proper position, the sliding cylinder 17 and the sliding rod 18 are driven to start rotating on the first swivel base 16 and the second swivel base 19 respectively, the sliding rod 18 slides in the sliding cylinder 17, then the rotary knob 14 is rotated to drive the driving rod 13 to rotate, the driving rod 13 is rotated to drive the bidirectional screw 8 to rotate, the bidirectional screw 8 rotates to drive the two thread blocks 9 to approach each other and slide on the limiting rods 15, so as to drive the two connecting rods 10 and the two limiting rings 11 to approach each other, until the fixing pads 20 on the two limiting rings 11 contact with the position of the swivel 6, and the position of the swivel 6 can be limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an artificial limb ankle joint with adjustable, includes artificial foot (1), the top fixedly connected with ankle axle (2) of artificial foot (1), its characterized in that still including connecting leg (3), connect two fixed plate (4) of bottom fixedly connected with of leg (3), two fixedly connected with pivot (5) between fixed plate (4), it is equipped with swivel (6) to rotate the cover in pivot (5), connecting block (7) is passed through to the bottom of swivel (6), ankle axle (2) fixed connection is in the bottom of connecting block (7), rotates between two fixed plate (4) and is connected with two-way screw rod (8), be provided with on two-way screw rod (8) and be used for driving two-way screw rod (8) and carry out pivoted drive assembly, threaded sleeve is equipped with two thread blocks (9) on two-way screw rod (8) be provided with between thread block (9) and be used for spacing thread block (9) not to carry out pivoted spacing subassembly, the left end of thread block (9) is through connecting rod (10) fixedly connected with spacing ring (11), spacing ring (11) slip pivot (5) is seted up and is connected with between dummy leg (6) and supporting component (12), and dummy leg (1) and supporting leg (12).

2. The adjustable ankle joint according to claim 1, wherein the driving assembly comprises a driving rod (13), the driving rod (13) is fixedly connected to the front end of the bidirectional screw (8), and the driving rod (13) extends to the outside through the fixing plate (4) on the front side.

3. An adjustable artificial ankle joint according to claim 2, characterized in that the front end of the drive rod (13) is fixedly connected with a rotary knob (14).

4. An adjustable artificial ankle joint according to claim 3, wherein the knob (14) is provided with anti-slip threads.

5. The adjustable artificial ankle joint according to claim 4, wherein the limiting component comprises a limiting rod (15), the limiting rod (15) is fixedly connected between the two fixing plates (4), and the two thread blocks (9) are slidably sleeved on the limiting rod (15).

6. An adjustable artificial ankle joint according to claim 1, wherein the supporting assembly comprises a first rotary base (16), the first rotary base (16) is fixedly connected to the bottom end of the connecting leg (3), a sliding barrel (17) is rotatably connected to the first rotary base (16), a sliding rod (18) is slidably sleeved at the bottom end of the sliding barrel (17), a second rotary base (19) is rotatably connected to the sliding rod (18), and the second rotary base (19) is fixedly connected to the top end of the artificial foot (1).

7. An adjustable prosthetic ankle joint according to claim 6, wherein a fixing pad (20) is fixedly connected to the inside of the entry groove (12).

8. An adjustable artificial ankle joint according to claim 7, wherein the fixing plate (4) is provided with a chamfer.