CN215606610U

CN215606610U - Artificial foot device

Info

Publication number: CN215606610U
Application number: CN202121941881.9U
Authority: CN
Inventors: 陈建文; 陈建成
Original assignee: Tehlin Prosthetist Beijing Co ltd
Current assignee: Tehlin Prosthetist Beijing Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-25
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a prosthetic foot device which comprises a supporting structure, a foot part structure and an adjusting structure, wherein the supporting structure is rotatably connected with the foot part structure. One end of the adjusting structure is rotatably connected with one end of the foot structure corresponding to the heel, and the other end of the adjusting structure is rotatably connected with the supporting structure in a threaded manner. With the prosthetic foot device of the present invention, the support structure and the foot structure are rotationally coupled and an adjustment structure is provided therebetween to control the extent of rotation of the support structure relative to the foot structure. Thereby when making to adjust structure relevant position and rotate, the longitudinal distance that the foot structure corresponds heel one end and bearing structure changes, and bearing structure rotates along its rotation junction promptly for the angle that the foot structure corresponds heel one end and bearing structure changes, thereby realizes adjusting the artificial foot structure according to user's figure demand.

Description

Artificial foot device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a prosthetic foot device.

Background

In order to facilitate walking, the physically impaired people usually wear the artificial limb as an auxiliary support. And in order to make the wearing of the artificial limb less conspicuous, clothes and shoes are worn on the outer side of the artificial limb to shield the artificial limb. However, when wearing shoes for example outside the artificial limb of the artificial foot, the height of the heel varies, so that the body shape of the user is influenced by the height of the heel and inclines forward, which is not beneficial to standing and walking.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems in the related art, the present invention provides a method for overcoming the above disadvantages in the prior art.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

an artificial foot device comprises a supporting structure, a foot structure and an adjusting structure, wherein the supporting structure is rotatably connected with the foot structure. One end of the adjusting structure is rotatably connected with one end of the foot structure corresponding to the heel, and the other end of the adjusting structure is rotatably connected with the supporting structure in a threaded manner. When the rotatable spiro union one end of regulation structure and bearing structure rotates, the longitudinal distance that the foot structure corresponds heel one end and bearing structure changes, and bearing structure rotates along its rotation junction promptly for the angle that foot structure corresponds heel one end and bearing structure changes, realizes adjusting the structure of artificial foot according to user's shape demand with this.

Furthermore, the supporting structure comprises a base, the top of the base is used for being connected with limbs, the bottom of the base is rotatably connected with the foot structure through a rotating shaft, and a front-back through connection space is arranged in the middle of the base. The adjusting structure comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is rotatably connected with one end of the foot structure corresponding to the heel, the other end of the first connecting piece penetrates into the connecting space, and the supporting structure is provided with a displacement space at the penetrating position of the first connecting piece, so that the first connecting piece can displace; the second linking piece is arranged in the linking space and rotatably connected with the first linking piece in a threaded mode.

Furthermore, the adjusting structure further comprises a sleeve disposed in the connecting space, and a limiting member sleeved at the front end of the sleeve, wherein the sleeve is provided with a front-back through barrel groove for the first connecting member to penetrate through from the rear side opening of the barrel groove and for the second connecting member to penetrate through from the front side opening of the barrel groove, the second connecting member is provided with a first head and a second head connected to the rear side of the first head and having an outer diameter larger than that of the first head, the limiting member is disposed in front of the second connecting member to limit the second connecting member from being separated from the front side opening of the barrel groove, and the limiting member is provided with a limiting through hole having an aperture between the outer diameters of the first head and the second head, and the limiting through hole is used for the first head to be exposed.

Furthermore, the adjusting structure further comprises a sleeve and a positioning member, the sleeve is arranged in the connecting space and provided with a cylinder slot for the first connecting member and the second connecting member to penetrate through, the inner side of the sleeve is provided with a plurality of positioning slots which are arranged at intervals in a surrounding manner and are communicated with the cylinder slot, the second connecting member is provided with an accommodating through hole, the opening of the accommodating through hole faces the inner side surface of the sleeve and extends radially, the positioning member is provided with a spring column penetrating in the accommodating through hole and at least one ball head which is arranged at one end of the spring column and exposes out of the opening of the accommodating through hole, and when the second connecting member rotates relative to the first connecting member in a spiral manner, the ball head is driven by the spring column to stretch and stretch into one of the positioning slots in sequence.

Furthermore, the adjusting structure further comprises fixing pieces on two sides, side holes are formed in two sides of the sleeve respectively, and the fixing pieces on the two sides penetrate through the supporting structure and then are connected with the side holes on the corresponding sides in a rotating mode, so that the sleeve can rotate for the supporting structure to adjust the angle.

Furthermore, the rotary connecting component for rotatably connecting the supporting structure and the foot structure comprises a shaft rod and a fastener, wherein the shaft rod sequentially penetrates through one side of the supporting structure, the foot structure and the other side of the supporting structure. One end of the shaft lever passes through one side of the supporting structure and then is limited by the first shaft head, the other end of the shaft lever passes through the other side of the supporting structure and then is limited by the second shaft head, a plurality of clamping grooves which are mutually surrounded and spaced and are sunken towards the axis of the shaft lever are formed on the lateral edge of the first shaft head, one end of the clamping groove is separately penetrated by the clamping piece, and the shaft lever is limited by the groove wall of the corresponding clamping groove and cannot rotate around the axis of the shaft lever.

Furthermore, the foot structure comprises a base rotatably connected to the support and a foot plate connected to the base, the foot plate is suitable for stepping on the ground, and the longitudinal distance between the front side and the rear side of the foot plate is changed along with the change of the inclination angle of the base relative to the support structure.

The utility model has the beneficial effects that: with the prosthetic foot device of the present invention, the support structure and the foot structure are rotationally coupled and an adjustment structure is provided therebetween to control the extent of rotation of the support structure relative to the foot structure. Thereby when making to adjust structure relevant position and rotate, the longitudinal distance that the foot structure corresponds heel one end and bearing structure changes, and bearing structure rotates along its rotation junction promptly for the angle that the foot structure corresponds heel one end and bearing structure changes, thereby realizes adjusting the artificial foot structure according to user's figure demand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Figure 1 is a schematic structural view of a prosthetic foot device according to an embodiment of the utility model.

Figure 2 is an exploded view of the construction of a prosthetic foot device according to an embodiment of the utility model.

Figure 3 is a schematic illustration in longitudinal cross-section, under normal conditions, of a prosthetic foot device according to an embodiment of the utility model.

Figure 4 is a schematic longitudinal cross-sectional view of an adjusted prosthetic foot device according to an embodiment of the utility model.

Figure 5 is a cross-sectional view of a prosthetic foot device according to an embodiment of the utility model.

In the figure: 1-supporting structure, 11-base, 111-joining space, 12-fastener, 13-fixing piece, 14-stop screw, 2-rotating connecting part, 21-shaft rod, 22-first shaft head, 221-fastener groove, 23-second shaft head, 3-foot structure, 31-base, 32-sole plate, 4-adjusting structure, 40-first joining piece, 41-sleeve, 411-sleeve groove, 412-positioning groove, 413-side hole, 42-second joining piece, 421-first head, 422-second head, 423-accommodating through hole, 43-positioning piece, 431-spring column, 432-ball head, 44-limiting piece and 441-limiting through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

As shown in fig. 1 and 2, the prosthetic foot device according to the utility model comprises a support structure 1, a foot structure 3 and an adjustment structure 4, the support structure 1 being rotatably connected to the foot structure 3. One end of the adjusting structure 4 is rotatably connected with one end of the foot structure 3 corresponding to the heel, and the other end of the adjusting structure 4 is rotatably connected with the supporting structure 1 in a threaded manner. When the rotatable spiro union one end of regulation structure 4 and bearing structure 1 rotates, the longitudinal distance that foot structure 3 corresponds heel one end and bearing structure 1 changes, and bearing structure 1 rotates along its rotation junction promptly for foot structure 3 corresponds heel one end and bearing structure 1's angle changes, with this structure that realizes adjusting the artificial foot according to user's shape demand.

As shown in fig. 1-5, the support structure 1 includes a base 11, the top of the base 11 is used for connecting with the limbs, the bottom of the base 11 is rotatably connected with the foot structure 3 through a rotating shaft, and a connecting space 111 is provided in the middle of the base 11 and runs through from front to back. The adjusting structure 4 comprises a first connecting piece 40 and a second connecting piece 42, one end of the first connecting piece 40 is rotatably connected with one end of the foot structure 3 corresponding to the heel, the other end of the first connecting piece 40 penetrates into the connecting space 111, and the supporting structure 1 is provided with a displacement space at the penetrating position of the first connecting piece 40, so that the first connecting piece 40 can displace; the second coupling member 42 is disposed in the coupling space 111 and rotatably coupled with the first coupling member 40.

As shown in fig. 1-4, the adjusting structure 4 further includes a sleeve 41 and a positioning element 43 disposed in the connecting space 111, the sleeve 41 has a barrel slot 411 for the first connecting element 40 and the second connecting element 42 to penetrate through, a plurality of positioning slots 412 surrounding and spaced from each other and communicating with the barrel slot 411 are formed inside the sleeve 41, the second connecting element 42 has an accommodating through hole 423 with an opening facing the inner surface of the sleeve 41 and extending radially, the positioning element 43 has a spring column 431 penetrating through the accommodating through hole 423, and at least one ball 432 disposed at one end of the spring column 431 and exposing the opening of the accommodating through hole 423, when the second connecting element 42 rotates in a spiral manner relative to the first connecting element 40, the ball 432 is driven by the spring column 431 to stretch and retract and extend into one of the positioning slots 412 in sequence.

As shown in fig. 1 to 4, the barrel slot 411 is used for the first connecting element 40 to penetrate through the rear opening of the barrel slot 411 and the second connecting element 42 to penetrate through the front opening of the barrel slot 411, the second connecting element 42 has a first head 421 and a second head 422 connected to the rear side of the first head 421 and having an outer diameter larger than the outer diameter of the first head 421, the limiting member 44 is disposed in front of the second connecting element 42 to limit the second connecting element 42 from being separated from the front opening of the barrel slot 411, the limiting member 44 has a limiting through hole 441 having an aperture between the outer diameters of the first head 421 and the second head 422, and the limiting through hole 441 is used for exposing the first head 421.

As shown in fig. 1 and 2, the adjusting structure 4 further includes two side fixing members 13, two sides of the sleeve 41 are respectively provided with a side hole 413, the two side fixing members 13 are rotatably connected with the side holes 413 of the corresponding sides after penetrating through the supporting structure 1, so that the sleeve 41 can be rotatably adjusted in angle relative to the supporting structure 1, and when the sleeve 41 is in a favorable position, the fixing members 13 are locked by a set screw 14 arranged on the fixing members 13, so that the fixing members 13 cannot be separated from the side holes 413.

As shown in fig. 1-5, the rotary connection part 2 for rotatably connecting the support structure 1 and the foot structure 3 comprises a shaft 21 and a snap 12, wherein the shaft 21 sequentially passes through one side of the support structure 1, the foot structure 3 and the other side of the support structure 1. One end of the shaft 21 passes through one side of the supporting structure 1 and is limited by the first shaft head 22, the other end of the shaft 21 passes through the other side of the supporting structure 1 and is limited by the second shaft head 23, a plurality of fastening grooves 221 which are spaced around each other and are recessed towards the axis of the shaft 21 are formed on the side edge of the first shaft head 22, one end of the fastening piece 12 can separately penetrate through one of the fastening grooves 221, and the shaft 21 is limited by the groove wall of the corresponding fastening groove 221 and cannot rotate around the axis of the shaft 21. The foot structure 3 comprises a base 31 rotatably connected to the support and a sole plate 32 connected to the base 31, the sole plate 32 is suitable for stepping on the ground, and the longitudinal distance between the front side and the rear side of the sole plate 32 is changed along with the change of the inclination angle of the base 31 relative to the support structure 1 of the sole plate 32.

In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.

In particular, as shown in fig. 3 and 4, in the prosthetic foot device according to the present invention, the device is installed at the end of the limb, and a screwdriver is used to pass through the limiting through hole 441 to twist the first head 421, and the first connecting member 40 makes the first connecting member 40 move toward or away from the supporting structure 1 according to the twisting direction under the action of the screw force.

When the first joint member 40 is moved towards the support structure 1, so that the foot structure 3 rotates clockwise along the rotating connecting member 2, the angle formed by the ball plate 32 and the support structure 1 increases, and the rear side (position corresponding to the heel) of the ball plate 32 is higher than the front side (position corresponding to the toes) of the ball plate 32.

When the first joint 40 moves away from the support structure 1, such that the foot structure 3 rotates counterclockwise along the rotating connecting part 2, the angle formed by the ball plate 32 and the support structure 1 decreases, and the rear side (position corresponding to the heel) of the ball plate 32 is lower than the front side (position corresponding to the toe) of the ball plate 32.

Through the use mode, when a user wears the shoe, the longitudinal distance between the front side and the rear side of the foot sole plate 32 can be adjusted corresponding to the height of the heel, so that comfortable choices which are beneficial to the user are provided for the user.

In summary, according to the above-mentioned technical solution of the present invention, the second engaging member 42 is twisted to drive the first engaging member 40 to move toward or away from the supporting structure 1, so as to change the angle between the foot structure 3 and the supporting structure 1, thereby achieving the effect of allowing the user to easily adjust the tilt angle, and indeed achieving the objective of cost-effectiveness.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A prosthetic foot device, characterized by: the novel foot-operated adjusting device comprises a supporting structure (1), a foot structure (3) and an adjusting structure (4), wherein the supporting structure (1) is rotatably connected with the foot structure (3), one end of the adjusting structure (4) is rotatably connected with one end of the foot structure (3) corresponding to a heel, and the other end of the adjusting structure (4) is rotatably connected with the supporting structure (1).

2. The prosthetic foot device according to claim 1, wherein: support structure (1) includes base (11), base (11) top is used for linking up with limbs, base (11) bottom is rotated with foot structure (3) through the pivot and is connected, base (11) middle part is provided with linking space (111) that link up from beginning to end, it includes first linking piece (40) and second linking piece (42) to adjust structure (4), first linking piece (40) wherein one end corresponds heel one end with foot structure (3) and rotates and be connected, first linking piece (40) other end penetrates linking space (111), support structure (1) is provided with the displacement space at the position of penetrating of first linking piece (40), second linking piece (42) set up in linking space (111) and with first linking piece (40) rotatable spiro union.

3. The prosthetic foot device according to claim 2, wherein: the adjusting structure (4) further comprises a sleeve (41) arranged in the connecting space (111) and a limiting piece (44) sleeved at the front end of the sleeve (41), the sleeve (41) is provided with a front-back through sleeve groove (411), the sleeve groove (411) is used for the first connecting piece (40) to penetrate through from the rear side opening of the sleeve groove (411) and used for the second connecting piece (42) to penetrate through from the front side opening of the sleeve groove (411), the second connecting piece (42) is provided with a first head (421) and a second head (422) which is connected to the rear side of the first head (421) and has an outer diameter larger than that of the first head (421), the limiting piece (44) is arranged in front of the second connecting piece (42) to limit that the second connecting piece (42) cannot be separated from the front side opening of the sleeve groove (411), and the limiting piece (44) is provided with a limiting hole between the outer diameters of the first head (421) and the second head (422) (441) The limiting through hole (441) is used for exposing the first head part (421).

4. The prosthetic foot device according to claim 2, wherein: the adjusting structure (4) further comprises a sleeve (41) and a positioning member (43) which are arranged in the connecting space (111), the sleeve (41) is provided with a sleeve groove (411) for the first connecting member (40) and the second connecting member (42) to penetrate, a plurality of positioning grooves (412) which are spaced around and communicated with the sleeve groove (411) are formed in the inner side of the sleeve (41), the second connecting member (42) is provided with an accommodating through hole (423) with an opening facing to the inner side surface of the sleeve (41) and extending radially, the positioning member (43) is provided with a spring column (431) penetrating in the accommodating through hole (423), and at least one ball head (432) which is arranged at one end of the spring column (431) and exposes out of the opening of the accommodating through hole (423), when the second connecting member (42) rotates relative to the first connecting member (40) in a spiral mode, the ball head (432) is driven by the spring column (431) to stretch and extend into the positioning grooves (412) in sequence One of them.

5. The prosthetic foot device according to claim 3 or 4, characterized in that: adjust structure (4) and still include both sides mounting (13), sleeve (41) both sides are provided with side opening (413) respectively, both sides mounting (13) pass behind bearing structure (1) and are connected with side opening (413) of corresponding side rotate.

6. The prosthetic foot device according to any one of claims 1-4, wherein: the rotary connecting component (2) rotatably connected with the foot structure (3) of the supporting structure (1) comprises a shaft rod (21) and a clamping piece (12), the shaft rod (21) sequentially penetrates through one side of the supporting structure (1), the other side of the foot structure (3) and the supporting structure (1), one end of the shaft rod (21) penetrates through one side of the supporting structure (1) and is limited by a first shaft head (22), the other end of the shaft rod (21) penetrates through the other side of the supporting structure (1) and is limited by a second shaft head (23), a plurality of clamping grooves (221) which are mutually surrounded at intervals and are sunken towards the axis of the shaft rod (21) are formed in the side edge of the first shaft head (22), and one end of the clamping grooves (221) is detachably penetrated by the clamping piece (12).

7. The prosthetic foot device according to any one of claims 1-4, wherein: the foot structure (3) comprises a base (31) rotatably connected to the support and a sole plate (32) connected to the base (31), the sole plate (32) is suitable for treading on the ground, and the longitudinal distance between the front side and the rear side of the sole plate (32) is changed by the sole plate (32) along with the change of the inclination angle of the base (31) relative to the support structure (1).