CN209951474U

CN209951474U - High-strength carbon fiber artificial half-foot

Info

Publication number: CN209951474U
Application number: CN201920293380.0U
Authority: CN
Inventors: 陆克站; 郑友军; 徐亚东; 王霞
Original assignee: Hangzhou Zhong Kang Artificial Limb Orthosis Co Ltd
Current assignee: Hangzhou Zhong Kang Artificial Limb Orthosis Co Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-01-17
Anticipated expiration: 2029-03-07

Abstract

The utility model relates to a high-strength carbon fiber semi-foot prosthesis, which comprises a foot plate and a connecting cylinder, wherein the foot plate is fixedly connected with a fixed cylinder, the fixed cylinder is provided with a slot, and the lower part of the connecting cylinder is fixedly connected with an inserted link which is inserted and matched with the slot; the fixed cylinder is provided with a locking mechanism for locking the position of the inserted rod, and the locking mechanism comprises a plurality of channels which are circumferentially distributed on the circumferential wall of the inserted rod and are communicated with the inner wall and the outer wall of the fixed cylinder, balls which are slidably embedded in the channels, and a clamping assembly which is arranged on the fixed cylinder and is used for driving the balls to simultaneously clamp the outer wall of the inserted rod. Compared with the traditional half-foot prosthesis, the scheme enables the connection structure between the foot plate and the connecting cylinder to be a connection structure convenient to disassemble and assemble, when one part in the foot plate or the connecting cylinder is damaged, only the relevant damaged part needs to be replaced, so that the waste of resources is reduced, and the economic burden of a wearer is also reduced.

Description

High-strength carbon fiber artificial half-foot

Technical Field

The utility model belongs to the technical field of human artificial limb's technique and specifically relates to a fine half sufficient artificial limb of high strength carbon.

Background

The main function of the artificial limb is to replace part of the lost limb function, so that the amputee can recover certain self-care and working abilities. The suitable object is amputee caused by diseases, traffic accidents, industrial accidents, sports injuries and the like. The half-foot artificial limb is suitable for a foot amputation patient and can restore the mobility and the balance of the patient to a certain degree.

Traditional half-foot artificial limb comprises foot board and connecting cylinder, and is mostly the integral type structure between foot board and the connecting cylinder. Although the integrated foot plate and connecting cylinder can improve the connecting strength between the foot plate and the connecting cylinder, due to the inseparability between the foot plate and the connecting cylinder, when one component in the foot plate or the connecting cylinder is damaged, the whole half-foot prosthesis is directly scrapped, so that not only is the resource waste caused, but also the economic burden of a wearer is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fine half sufficient artificial limb of high strength carbon makes the connection structure between foot board and the connecting cylinder constitute for dismantled and assembled connection structure, when a part in foot board or the connecting cylinder takes place to damage, only need change relevant damaged part can, reduced the waste of resource and the economic burden of wearing person, and the operation of changing is very convenient and fast.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-strength carbon fiber semi-foot prosthesis comprises a foot plate and a connecting cylinder, wherein a fixed cylinder is fixedly connected to the foot plate, an inserting groove is formed in the fixed cylinder, and an inserting rod which is in inserting fit with the inserting groove is fixedly connected to the lower portion of the connecting cylinder; the fixed cylinder is provided with a locking mechanism for locking the position of the inserted rod, and the locking mechanism comprises a plurality of channels which are circumferentially distributed on the circumferential wall of the inserted rod and are communicated with the inner wall and the outer wall of the fixed cylinder, balls which are slidably embedded in the channels, and a clamping assembly which is arranged on the fixed cylinder and is used for driving the balls to simultaneously clamp the outer wall of the inserted rod.

Through adopting above-mentioned technical scheme, the operator is when installation foot board and connecting cylinder, only need insert the inserted bar with the connecting cylinder below and locate in the slot, support the outer wall of tight inserted bar simultaneously through supporting a plurality of balls of tight subassembly drive afterwards, can accomplish the installation of foot board and connecting cylinder, compare in directly passing the solid fixed cylinder single-point through single bolt and support tight inserted bar, this scheme supports tight interior pole through a plurality of balls multiple spot simultaneously, can say that improved the stability after the inserted bar is fixed effectively, make foot board and connecting cylinder more be difficult to take place to break away from, the principle is simple and convenient operation. If it separates foot board and connecting cylinder to change the relevant part that damages, the operator only need the back drive support the subassembly make a plurality of balls no longer support the outer wall of inserted bar can, very convenient and fast in the operation equally. Compared with the traditional half-foot prosthesis, the scheme enables the connection structure between the foot plate and the connecting cylinder to be a connection structure convenient to disassemble and assemble, when one part in the foot plate or the connecting cylinder is damaged, only the relevant damaged part needs to be replaced, so that the waste of resources is reduced, and the economic burden of a wearer is also reduced.

The utility model discloses further set up to: the abutting assembly comprises a rotating sleeve and an abutting inclined plane, wherein the rotating sleeve is sleeved on the peripheral wall of the fixed cylinder through threads, the abutting inclined plane is arranged on the inner wall of the rotating sleeve in a circumferential direction and corresponds to a plurality of balls, and the distance between the abutting inclined plane and the central axis of the rotating sleeve is gradually changed along the axial direction of the rotating sleeve.

Through adopting above-mentioned technical scheme, the rotatory cover that rotates of wearer rotates the cover and will move along the axial of solid fixed cylinder under the effect of screw thread, rotates the in-process of cover removal, and the interval between butt inclined plane and the ball changes gradually, and final butt inclined plane will drive a plurality of balls and support tightly in step or not support tightly in the periphery wall of inserted bar, and then has realized fixing and loosening the inserted bar position, and the structure principle is ingenious and operation process is very convenient.

The utility model discloses further set up to: the rotating sleeve is fixedly sleeved with a rubber sleeve.

Through adopting above-mentioned technical scheme, the setting up of rubber sleeve has increased the coefficient of friction that rotates the cover surface, has increased the produced frictional force when the wearing person hand contacts with rotating the cover, and then makes the wearing person conveniently rotate the cover more smoothly.

The utility model discloses further set up to: many curved recesses have been seted up corresponding a plurality of balls on the periphery wall of inserted bar, and the length direction and the inserted bar length direction of recess are parallel arrangement, the part butt that the slot inner wall was worn out to the ball is in the recess.

Through adopting above-mentioned technical scheme, the setting up of recess makes the single-point contact between ball and the inserted bar originally become present line contact, and then has increased the contact area between ball and the inserted bar, has improved the ball and has supported the steadiness between the two when tight inserted bar, makes the inserted bar can be fixed on the solid fixed cylinder more firmly, and the foot board more is difficult to take place to break away from with the connecting cylinder promptly.

The utility model discloses further set up to: a positioning groove communicated with the slot is vertically formed in the fixed cylinder and is communicated with the upper surface of the fixed cylinder; the positioning block slides and tightly abuts against the positioning groove, and when the positioning block is located in the positioning groove, the mounting positions of the foot plate and the connecting cylinder are correct.

Through adopting above-mentioned technical scheme, the in-process that the wearing inserted bar inserted the slot, constant head tank and locating piece can lead to the removal of inserted bar, have effectively avoided the inserted bar to take place to rotate and lead to the condition that footboard and connecting cylinder mounted position take place the dislocation, make the installation between quick and accurate completion footboard of wearing and the connecting cylinder.

The utility model discloses further set up to: the magnetic plate is installed at the bottom of the fixed cylinder, and one end of the insertion rod close to the bottom of the fixed cylinder is provided with a metal plate which is matched with the magnetic plate in an attracting mode.

Through adopting above-mentioned technical scheme, when the operator back drive supports tight subassembly and makes the ball no longer support tight inserted bar, through the actuation cooperation of magnetic sheet and metal sheet, can reduce the direct emergence of sufficient board and drop and lead to the probability of damage.

The utility model discloses further set up to: the slot opening of the slot is arranged in a flaring manner.

By adopting the technical scheme, the area of the slot opening of the slot is increased by the flaring arrangement of the slot opening, so that a wearer can smoothly and conveniently insert the insertion rod into the fixed cylinder.

To sum up, the utility model discloses a beneficial technological effect does:

1. the arrangement of the fixed cylinder, the slot, the inserted link and the locking mechanism enables the connecting structure between the foot plate and the connecting cylinder to be a detachable connecting structure, when one part in the foot plate or the connecting cylinder is damaged, only the relevant damaged part needs to be replaced, the situation that the whole half-foot artificial limb is directly scrapped is avoided, and the waste of resources and the economic burden of a wearer are reduced;

2. the arrangement of the positioning groove and the positioning block ensures that a wearer can quickly and accurately complete the installation between the foot plate and the connecting cylinder;

3. the arrangement of the magnetic plate and the metal plate can reduce the probability of damage caused by the direct falling of the foot plate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a partial cross-sectional structure of the middle fixing cylinder of the present invention.

In the figure, 1, a foot plate; 2. a connecting cylinder; 3. a fixed cylinder; 4. a slot; 5. inserting a rod; 6. a channel; 7. a ball bearing; 8. rotating the sleeve; 9. abutting against the inclined plane; 10. a rubber sleeve; 11. positioning a groove; 12. positioning blocks; 13. a groove; 14. a magnetic plate; 15. a metal plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a high-strength carbon fiber semi-foot prosthesis comprises a foot plate 1 and a connecting cylinder 2, wherein the foot plate 1 is made of a high-strength carbon fiber material, a fixing cylinder 3 with a circular cross section is fixedly connected with the heel of the foot plate 1, a slot 4 with a circular cross section is formed in the upper surface of the fixing cylinder 3, the slot 4 is flared, and an inserting rod 5 which is in inserting connection with the slot 4 in a matched mode is fixedly connected with the bottom of the connecting cylinder 2.

Referring to fig. 2, four channels 6 communicating the inner wall and the outer wall of the fixed cylinder 3 are formed in the fixed cylinder 3, the four channels 6 are uniformly distributed around the axis of the fixed cylinder 3, balls 7 are embedded in the four channels 6 in a sliding mode, and partial areas of the balls 7 penetrate through the inner wall and the outer wall of the fixed cylinder 3 all the time. The thread bush is equipped with and rotates cover 8 on the 3 outer walls of fixed cylinder, rotates and to set up the butt inclined plane 9 with 7 butts of ball on 8 inner walls of cover in a circumferential direction, and the distance between 8 axis of rotation cover to butt inclined plane 9 reduces along the direction of keeping away from footboard 1 gradually. The outer wall of the rotating sleeve 8 is fixedly sleeved with a rubber sleeve 10 used for increasing the surface friction coefficient of the rotating sleeve 8. After the inserted link 5 is inserted into the slot 4, an operator rotates the rotating sleeve 8 and moves the rotating sleeve 8 downwards, the distance between the abutting inclined surface 9 and the ball 7 is gradually reduced, the ball 7 is finally abutted against the outer wall of the inserted link 5 under the action of the abutting inclined surface 9, and then the installation between the foot plate 1 and the connecting cylinder 2 is realized. If the foot plate 1 and the connecting cylinder 2 are separated, the rotating sleeve 8 is rotated reversely to ensure that the abutting inclined surface 9 does not abut against the ball 7 any more, and the operation is very convenient.

A positioning groove 11 with a rectangular cross section is vertically arranged on the side wall of the slot 4, the positioning groove 11 is communicated with the upper surface of the fixed cylinder 3, a rectangular positioning block 12 is fixedly connected to the outer wall of the inserted link 5, and the positioning block 12 can slide and tightly abut against the positioning groove 11. When a wearer inserts the inserted link 5 into the slot 4, the positioning groove 11 and the positioning block 12 can avoid the situation that the installation positions of the foot plate 1 and the connecting cylinder 2 are dislocated due to the rotation of the inserted link 5.

Four arc-shaped grooves 13 are formed in the outer wall of the inserted rod 5 corresponding to the four balls 7, the four grooves 13 are evenly distributed around the central axis of the inserted rod 5, and the length directions of the grooves 13 and the length directions of the inserted rod 5 are arranged in parallel. The part of the ball 7 penetrating out of the inner wall of the fixed cylinder 3 is embedded in the groove 13, and the radian of the groove 13 is the same as that of the ball 7. When the abutting inclined surface 9 drives the ball 7 to abut against the outer wall of the inserted rod 5, the ball 7 is attached to the groove 13, so that the contact area between the ball 7 and the inserted rod 5 is increased, and the stability of the inserted rod 5 after being fixed is improved.

The bottom of the slot 4 is fixedly connected with a round magnetic plate 14, and one end of the inserted bar 5 far away from the connecting cylinder 2 is fixedly connected with a metal plate 15 which is consistent with the magnetic plate 14 in specification and size. When an operator rotates the rotating sleeve 8 to enable the ball 7 to not abut against the insert rod 5 any more, the foot plate 1 is still positioned on the insert rod 5 through the attraction and matching of the magnetic plate 14 and the metal plate 15, and the probability of damage caused by the fact that the foot plate 1 directly falls off is avoided. If a wearer wants to take off the foot plate 1 on the insertion rod 5, the wearer can hold the foot plate 1 and apply a slight force, so that the operation is very convenient.

The implementation principle of the embodiment is as follows: when a wearer installs the foot plate 1 and the connecting cylinder 2, the inserting rod 5 is firstly inserted into the inserting groove 4, then an operator rotates the rotating sleeve 8 and enables the rotating sleeve 8 to move downwards, the distance between the abutting inclined surface 9 and the ball 7 is gradually reduced, the ball 7 is finally abutted against the outer wall of the inserting rod 5 under the action of the abutting inclined surface 9, and then the installation between the foot plate 1 and the connecting cylinder 2 is realized. If the foot plate 1 and the connecting cylinder 2 are separated, the rotating sleeve 8 is rotated reversely to ensure that the abutting inclined surface 9 does not abut against the ball 7 any more, and the operation is very convenient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A high-strength carbon fiber biped prosthesis, which comprises a foot plate (1) and a connecting cylinder (2), and is characterized in that: a fixed cylinder (3) is fixedly connected to the foot plate (1), a slot (4) is formed in the fixed cylinder (3), and an inserting rod (5) which is in inserting fit with the slot (4) is fixedly connected to the lower portion of the connecting cylinder (2); the locking mechanism is arranged on the fixed cylinder (3) and used for locking the position of the inserted rod (5), and comprises a plurality of channels (6) which are circumferentially distributed on the peripheral wall of the inserted rod (5) and communicated with the inner wall and the outer wall of the fixed cylinder (3), balls (7) which are slidably embedded in the channels (6) and abutting assemblies which are arranged on the fixed cylinder (3) and used for driving the balls (7) to abut against the outer wall of the inserted rod (5) at the same time.

2. The high strength carbon fiber bipod prosthesis of claim 1, wherein: support tight subassembly and include that the screw sleeve establishes rotation cover (8) on fixed cylinder (3) periphery wall, correspond butt inclined plane (9) on rotating cover (8) inner wall are seted up to a plurality of ball (7) circumference, butt inclined plane (9) are arrived distance between rotation cover (8) axis is the gradual change setting along the axial of rotating cover (8).

3. The high strength carbon fiber bipod prosthesis of claim 2, wherein: the rotating sleeve (8) is fixedly sleeved with a rubber sleeve (10).

4. The high strength carbon fiber bipod prosthesis of claim 1, wherein: many curved recesses (13) have been seted up corresponding a plurality of ball (7) on the periphery wall of inserted bar (5), the length direction and inserted bar (5) length direction of recess (13) are parallel arrangement, the part butt that slot (4) inner wall was worn out in recess (13) is worn out in ball (7).

5. The high strength carbon fiber bipod prosthesis of claim 1, wherein: a positioning groove (11) communicated with the slot (4) is vertically formed in the fixed cylinder (3), and the positioning groove (11) is communicated with the upper surface of the fixed cylinder (3); the foot plate is characterized in that the inserting rod (5) is fixedly connected with a positioning block (12), the positioning block (12) slides and tightly abuts against the positioning groove (11), and when the positioning block (12) is located in the positioning groove (11), the mounting positions of the foot plate (1) and the connecting cylinder (2) are correct.

6. The high strength carbon fiber bipod prosthesis of claim 1, wherein: the magnetic plate (14) is installed at the bottom of the fixed cylinder (3), and one end of the inserted bar (5) close to the bottom of the fixed cylinder (3) is provided with a metal plate (15) which is matched with the magnetic plate (14) in an attracting mode.

7. The high strength carbon fiber bipod prosthesis of claim 1, wherein: the slot opening of the slot (4) is flared.