Half-toe carbon fiber sole

Abstract

The utility model relates to a half-toe carbon fiber foot plate which comprises an upper foot plate, a lower foot plate, an artificial limb connector, a connecting device and a half-toe structure. The upper foot plate and the lower foot plate are fixedly connected through a connecting device; the head ends of the upper foot plate and the lower foot plate and the tail end of the lower foot plate are respectively provided with a half toe separating structure; the artificial limb connector is fixedly connected to the top of the upper foot plate through a fastener; the artificial limb connector comprises a rectangular pyramid, a ring seat, a carbon fiber mold pressing head and a threaded insert which are sequentially arranged from top to bottom; the utility model has the advantages that the full-foot-length sole design and the tow connecting device are adopted, so that better rolling performance can be provided in the walking process, the half-toe structure can better walk on a rugged road surface, and better walking experience is provided for a user; and the weight of the sole product is further reduced through the design of the molded artificial limb connector taking the non-metal carbon fiber as the main body, so that the burden of the stump of the user is reduced, and the stump of the user is better protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to medical auxiliary instrument, and relates to the technical field of artificial limb, especially a half-toe carbon fiber foot plate. BACKGROUND

[0002] Since the weight of the artificial limb has a direct impact on the energy consumed by the lower limb amputee during movement, it will affect the effect of the user wearing the artificial limb, therefore, in the process of designing and manufacturing artificial limb parts, the lower limb accessories with light weight and reducing physical consumption should be selected as far as possible while meeting the requirements of the user.

[0003] In order to better simulate the normal foot bottom movement state, from the heel landing to the foot palm leaving the ground is a continuous process, which requires that the continuous process will continue to roll stably, and there are two existing implementation schemes; one is that the lower foot plate is half foot long, which will appear the discontinuity of rolling at the step; the second is that the lower foot plate is full foot long and the upper foot plate is half foot long, but the connection between the upper and lower foot plates adopts rigid connection by bolts, the elasticity of the foot plate at the connection point will be poor, which will also lead to the discontinuity of rolling at the connection point; and the upper and lower foot plates adopt bolt connection, which needs to punch holes at the corresponding positions of the foot plates, which will damage the structure of the carbon fiber at the positions and affect the strength, and the metal bolt is rigid connection, which leads to small elastic deformation at the connection.

[0004] Because the residual limb of the artificial limb user is degraded and other reasons, the artificial limb cannot be supported, that is, a lighter artificial limb is needed, and the material of the upper end connector in the existing implementation scheme is metal material, and individual technology adopts aluminum alloy main body plus titanium alloy or stainless steel four-pyramid, although the product weight is reduced, the overall weight is still heavy.

[0005] In addition, when a normal person walks on a rugged road, according to the physiological structure of the human foot, the toes and ankles can be adapted to the road by rotating, but the artificial foot plate cannot realize the real physiological structure characteristics, in order to make the artificial limb user walk on the rugged road more naturally, more landing points are needed. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the above problems existing in the prior art, and provides a half-toe carbon fiber foot plate.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0008] A half-toe carbon fiber foot plate, comprising an upper foot plate and a lower foot plate, an artificial limb connector, a connecting device and a half-toe structure, the upper foot plate and the lower foot plate are fixedly connected through the connecting device, and the head end of the upper foot plate and the lower foot plate and the tail end of the lower foot plate are provided with the half-toe structure, and the artificial limb connector is fixedly connected to the top of the upper foot plate through a fastener;

[0009] The prosthetic connecting head comprises, from top to bottom, a quadrangular pyramid for connecting an external prosthetic structure, a ring seat for protecting a carbon fiber molding head, the carbon fiber molding head for limiting and fixing, and a threaded insert for reinforcing connection, and the quadrangular pyramid, the ring seat, the carbon fiber molding head and the threaded insert are fixedly connected through a carbon fiber molding process.

[0010] Preferably, the fastener comprises a fastening bolt and a gasket, the gasket is located on the fastening bolt, the fastening bolt penetrates through the top of the upper foot plate and is threadedly connected with the threaded insert in the prosthetic connecting head; wherein the top of the upper foot plate is further provided with a bolt hole, and the fastening bolt and the bolt hole are mutually adapted.

[0011] Preferably, the head end of the carbon fiber molding head is fixedly connected with the ring seat, the tail end of the carbon fiber molding head is provided with a cavity for accommodating the threaded insert, and the cavity is adapted to the threaded insert.

[0012] Preferably, the tail end of the carbon fiber molding head is further provided with a cutout, the tail end of the carbon fiber molding head is mutually fitted with the top end of the upper foot plate through the cutout, and the upper foot plate is limited.

[0013] Preferably, the shape of the cutout is adapted to the shape of the top of the upper foot plate.

[0014] Preferably, the shape of the cutout is L-shaped.

[0015] Preferably, the connecting device is arranged at the front end of the upper foot plate and the lower foot plate, and comprises a decorative sleeve and a filament, the filament is wound around the connecting end of the upper foot plate and the lower foot plate, wherein the filament is used for fixing the upper foot plate and the lower foot plate; the decorative sleeve is sleeved at the connecting end after being wound by the filament, wherein the decorative sleeve is used for decorating the filament.

[0016] Preferably, the connecting end of the upper foot plate and the lower foot plate is correspondingly provided with a limiting groove, and the filament is wound in the limiting groove.

[0017] Preferably, the upper foot plate is gradually thickened from the bottom to the top; the lower foot plate is provided in a full foot length, and the shape of the lower foot plate simulates the shape of the arch of the human foot.

[0018] Preferably, a buffer pad is arranged between the upper foot plate and the lower foot plate.

[0019] Due to the adoption of the above technical scheme, the prosthetic connecting head has the following beneficial effects:

[0020] 1. The utility model discloses a full foot length foot sole design and the setting of connecting device can better realize the structure of human body foot arch, make it have better rollability in the movement process, and the connecting device adopts the way of fiber filament to the damage of carbon fiber footboard is little, can realize better gait, and the continuity damage of carbon fiber footboard deformation is also little, improves the comfort of wearing and walking, and also greatly improves the life of product,

[0021] 2. The utility model discloses a nonmetal carbon fiber is the main body's mould pressing artificial limb connecting head design (the volume of carbon fiber mould pressing head is in the connecting head and accounts for the ratio is bigger), further reduce the weight of footboard product, and then reduce the burden of user stump, better protection user's stump,

[0022] 3. The utility model discloses the step type setting of carbon fiber mould pressing head (the tail end is provided with the incision of the top end of upper footboard is in line with, and this structure looks similar to step type), avoid single bolt connection after artificial limb connecting head relative upper footboard and take place rotation, make it reach double fixed effect, improve the stability in the use process,

[0023] 4. The utility model discloses the toe design of front foot sole and rear heel, avoids the situation of single point landing when walking on the rugged road, enhances the stability and reduces the burden of stump. SHEET DESCRIPTION

[0024] Figure 1 It is the structure schematic diagram of the utility model half toe carbon fiber footboard one implementation.

[0025] Figure 2 It is the partial section view of the utility model half toe carbon fiber footboard one implementation.

[0026] Figure 3 It is the part exploded view of the utility model half toe carbon fiber footboard one implementation.

[0027] Figure 4 It is the plan view of the utility model half toe carbon fiber footboard one implementation.

[0028] Figure 5 It is the partial connection schematic diagram of the utility model upper footboard and lower footboard.

[0029] Figure 6 It is the partial connection schematic diagram of the utility model upper footboard and artificial limb connecting head.

[0030] The following shows the attached drawing mark:

[0031] 1, upper footboard, 11, bolt hole, 2, lower footboard,

[0032] 3, artificial limb connecting head, 31, four pyramid, 32, ring seat,

[0033] 33. Carbon fiber molding head; 332. Cutout; 331. Chamber; 34. Threaded insert;

[0034] 4. Connecting device; 41. Decorative sleeve; 42. Thread bundle; 43. Limiting groove;

[0035] 5. Fasteners; 51. Fastening bolts; 52. Washers; 6. Buffer pads; 7. Split-toe structure. Detailed Implementation

[0036] Please see Figures 1-6 As shown, this utility model mainly provides a semi-split-toe carbon fiber footplate, including an upper footplate 1, a lower footplate 2, a prosthesis connector 3, a connecting device 4, and a semi-split-toe structure 7; the front ends of the upper footplate 1 and the lower footplate 2 are fixedly connected by the connecting device 4; a semi-split-toe structure 7 is provided at the head end of the upper footplate and the tail end of the lower footplate, as shown. Figure 3 and Figure 4 As shown, the semi-split toe structure 7 splits the toes simultaneously on the ball of the foot and the heel, and can be a through groove or cuboid groove, thus dividing the ball and heel into sections / toes. The split toes on the ball of the foot enhance adaptability to different road surfaces, while the semi-split toes on the heel enhance adaptability to different road surfaces. It should be noted that the semi-split toe structure 7 is a special foot structure design commonly found in high-performance prosthetic foot products. It can produce different degrees of bending according to road conditions, providing a certain degree of lateral flexibility and improving user comfort. In this embodiment, the prosthetic connector 3 is fixedly connected to the top of the ball of the foot 1 by fasteners 5. The prosthetic connector 3 consists of four parts (such as...). Figure 3 As shown, the prosthesis connector includes, from top to bottom, a square pyramid 31, a ring seat 32, a carbon fiber molding head 33, and a threaded insert 34. The square pyramid 31, ring seat 32, and threaded insert 34 are pre-processed metal parts. Through carbon fiber molding, the metal parts and carbon fiber are pressed together to form the prosthesis connector. In this embodiment, the threaded insert 34 strengthens the connection, the ring seat 32 protects the carbon fiber molding head when the prosthesis connector is connected to other prostheses, and the square pyramid 34 is mainly used for connecting with other prostheses. It should be noted that the main material of the prosthesis connector is... The material is carbon fiber, which has half the density of aluminum alloy and 5-7 times the strength of steel, greatly reducing the weight of the product. At the same time, carbon fiber is widely used in the field of prostheses due to its high strength, high elasticity, and light weight, especially carbon fiber footplates, which can give full play to their excellent rebound effect. In addition, the four-sided pyramid at the top of the prosthesis connector is made of titanium alloy or stainless steel (the four-sided pyramid at the top is the standard structure for connecting with other prostheses, and this connection method is quite common in existing technologies. The structural principle will not be elaborated here), which ensures the connection strength while reducing the overall weight.

[0037] Further, the head end of the carbon fiber molded head 33 is fixedly connected with the ring seat 32, and the tail end is provided with a cavity 331 for accommodating a threaded insert, and the cavity 331 is matched with the threaded insert 34, and the prosthetic connection head 3 is fixedly connected with the top of the upper foot plate 1 through the threaded insert 34 and the fastener 5; specifically:

[0038] Referring again to Figure 3 , the fastener 5 includes a fastening bolt 51 and a gasket 52, and the gasket 52 is located on the fastening bolt 51, wherein the top of the upper foot plate 1 is also provided with a bolt hole 11, and the fastening bolt 51 is matched with the bolt hole 11; during fixing, the fastening bolt 51 passes through the bolt hole 11 on the top of the upper foot plate and is threadedly connected with the threaded insert 34 in the prosthetic connection head; during connection, the cavity 331 of the carbon fiber molded head still has space for the fastening bolt 51 to rotate, thereby realizing the close fixing of the fastening bolt 51 and the threaded insert 34; and the gasket on the fastening bolt 51 can play a pressurizing and fixing effect (the gasket plays a protective role on the position of the upper foot plate during pressurizing and fixing), which can enhance the stability of the fixing between the prosthetic connection head and the upper foot plate.

[0039] Further, the tail end of the carbon fiber molded head 33 is also provided with a cutout 332, and the tail end of the carbon fiber molded head is matched with the top end of the upper foot plate 1 through the cutout 332, and forms a limit with the upper foot plate 1 (as shown in Figure 1 and Figure 6 ); in this embodiment, the shape of the cutout 332 is matched with the shape of the top of the upper foot plate; preferably, the shape of the cutout 332 is L-shaped; the provision of the cutout 332 at the tail end of the carbon fiber molded head can limit the end of the upper foot plate 1 (the upper end surface of the upper foot plate is matched with the connection part of the cutout), avoid rotation of the prosthetic connection head relative to the upper foot plate after single-bolt connection, and achieve the effect of double fixing, thereby improving the stability during use.

[0040] In this embodiment, the connecting device 4 includes a decorative sleeve 41 and a filament 42, and the filament 42 is wound around the connecting end of the upper foot plate 1 and the lower foot plate 2, wherein the filament 42 is mainly made of a composite material filament of carbon fiber or glass fiber, and the lower foot plate 2 and the upper foot plate 1 are fixedly connected through winding; correspondingly, the connecting end of the upper foot plate 1 and the lower foot plate 2 is correspondingly provided with a sawtooth-shaped limiting groove 43, so that the connecting filament is stably clamped in the limiting groove 43 without being tangled, thereby realizing stable connection of the upper and lower foot plates.

[0041] Further, the decorative sleeve 41 is sleeved on the connecting end after winding of the filament, wherein the decorative sleeve 41 is mainly used for decorating the surface of the filament 42, so that the product surface is more smooth and beautiful, and the decorative sleeve is not limited to an overall installed sheath, and is not limited to a sheath formed by winding or coating.

[0042] In the embodiment, the setting of the connecting device 4 has little damage to the upper and lower foot plates, thereby greatly improving the fatigue life of the product and bringing better elastic deformation; meanwhile, the connecting filament 42 has a performance close to that of the material of the foot plate, so that continuous elastic deformation and good rolling are realized.

[0043] In the embodiment, the upper foot plate 1 gradually thickens from the bottom to the top; the setting is designed according to the actual situation of the force received by the human foot sole and bottom during walking, that is, the force gradually decreases from the large-area landing of the foot sole to the take-off of the toe, and the thickness of the product gradually decreases, so that the effect of gradually reducing the landing force from the landing of the foot sole to the take-off of the foot sole during true foot walking is simulated; the upper foot plate 1 simulates the shape of the human foot and the ankle similar to the C-shaped structure, which can provide more deformation space for the upper foot plate and increase the deformation amount of the back curve during walking, and the bending angle should be less than 90 degrees and is not fixed.

[0044] In the embodiment, the lower foot plate 2 is integrally provided with the whole foot length (that is, there is no step or rigid connection in the middle to cause deformation obstruction during rolling, so that the rolling force and deformation are continuous), the shape of the lower foot plate simulates the effect of the human arch, walking is more stable, and better rolling is provided, thereby providing a better walking experience for the user.

[0045] In the embodiment, the buffer pad 6 is arranged between the upper foot plate 1 and the lower foot plate 2, which can effectively avoid the damage caused by the collision and contact friction of the upper foot plate and the lower foot plate during work, and improve the stability and durability during use.

[0046] It should be noted that: through the design of the whole foot length foot bottom and the setting of the connecting device, the structure of the human arch can be better realized, so that better rolling is achieved during movement; the connecting device adopts the fiber filament mode, which has little damage to the carbon fiber foot plate, can realize better gait, and has little damage to the continuity of the deformation of the carbon fiber foot plate, thereby improving the wearing comfort during walking and greatly improving the service life of the product; in addition, the non-metal carbon fiber is designed as the main body of the die pressing connector (the volume of the carbon fiber die pressing head accounts for a large proportion in the connector), which further reduces the weight of the foot plate product, thereby reducing the burden of the residual limb of the user and better protecting the residual limb of the user; meanwhile, the step type setting of the carbon fiber die pressing head (the tail end is provided with a notch matched with the top end of the upper foot plate, and the structure looks like a step type), which avoids the rotation of the single bolt connected artificial limb connector relative to the upper foot plate, so that double fixation is achieved, and the stability during use is improved.

[0047] The above related description and the description of the embodiments are for facilitating the ordinary skilled in the art to understand and apply the present application. Those skilled in the art can obviously easily make various modifications to these contents, and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above related description and the description of the embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the present application without departing from the scope of the present application should be within the protection scope of the present application.

Claims

1. A semi-split-toe carbon fiber footplate comprising an upper footplate and a lower footplate; characterized in that, The prosthetic connecting head is fixedly connected to the top of the upper foot plate by a fastener. The fastener comprises a fastening bolt and a gasket, the gasket is located on the fastening bolt, the fastening bolt penetrates the top of the upper foot plate and is threadedly connected with the threaded insert in the prosthetic connecting head; wherein the top of the upper foot plate is further provided with a bolt hole, the fastening bolt and the bolt hole are mutually adapted.

2. The semiwebbed carbon fiber footplate of claim 1, wherein, The head end of the carbon fiber molding head is fixedly connected with the ring seat, the tail end of the carbon fiber molding head is provided with a cavity accommodating the threaded insert, and the cavity is adapted to the threaded insert.

3. The semiwebbed carbon fiber footplate of claim 1, wherein, The tail end of the carbon fiber molding head is further provided with a cutout, the tail end of the carbon fiber molding head is mutually fitted with the top end of the upper foot plate through the cutout, and forms a limit with the upper foot plate.

4. The semiwebbed carbon fiber footplate of claim 3, wherein, The shape of the cutout is adapted to the shape of the top of the upper foot plate.

5. The semiwebbed carbon fiber footplate of claim 4, wherein, The shape of the cutout is L-shaped.

6. The semiwebbed carbon fiber footplate of claim 5, wherein, The connecting device is arranged at the front end of the upper foot plate and the lower foot plate, and comprises a decorative sleeve and a filament bundle, the filament bundle is wound around the connecting end of the upper foot plate and the lower foot plate, wherein the filament bundle is used to fix the upper foot plate and the lower foot plate; the decorative sleeve is sleeved on the connecting end after being wound by the filament bundle, wherein the decorative sleeve is used to decorate the filament bundle.

7. The semiwebbed carbon fiber footplate of claim 1, wherein, The connecting end of the upper foot plate and the lower foot plate is correspondingly provided with a limiting groove, and the filament bundle is wound in the limiting groove.

8. The semiwebbed carbon fiber footplate of claim 7, wherein, The upper foot plate gradually thickens from the bottom to the top; the lower foot plate is arranged as a whole foot length, and the shape simulates the arch shape of human foot.

9. The semiwebbed carbon fiber footplate of claim 1, wherein, A buffer pad is arranged between the upper foot plate and the lower foot plate.

10. The semiwebbed carbon fiber footplate of claim 1, wherein, ​

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