Thickness-variable layer structure and thickness-adjustable orthopedic helmet

Abstract

The utility model relates to an orthopedic instrument, in particular to a thickness-variable layer structure and a thickness-adjustable orthopedic helmet. Wherein the thickness-variable layer structure is positioned between the outer layer of the orthopedic helmet and the inner layer of the orthopedic helmet, and deforms and is compressed when being extruded. The thickness-adjustable orthopedic helmet comprises an outer layer, an inner layer and a thickness-variable layer, wherein the thickness-variable layer adopts the thickness-variable layer structure; the edges of the inner layer and the outer layer are clamped and fixed; and when the inner layer is extruded from inside to outside, the inner layer moves outwards to approach the outer layer. According to the utility model, the automatic adjustment of the orthopedic helmet is realized, so that a corresponding space is provided for the growth and development of the head. The space of the orthopedic helmet is automatically adjusted, manual operation is not needed, and the orthopedic helmet is convenient to use and comfortable to wear.

Description

Technical Field

[0001] The utility model relates to orthopedic devices, in particular to a thickness-variable layer structure and an orthopedic helmet with adjustable thickness. Background Art

[0002] Cranial deformities in infants and young children are relatively common phenomena. Some deformities start during the gestational week, while others are caused by maintaining a single sleeping position for a long time after birth. Regardless of the cause of cranial deformities, they have a certain impact on the physical development of infants and young children.

[0003] Nowadays, people have developed a number of orthopedic helmets for correcting the deformed heads of infants and young children. For example, helmets with a hollow and breathable structure enhance the wearing comfort. Another example is the utility model patent CN209899684U disclosed on January 7, 2020, which is an adjustable orthopedic helmet. Inside the helmet shell, there are several fixing pieces. Through the cooperation of a detachable screw rod and a nut arranged on the shell, the fixing pieces are connected to the shell and the distance between the shell and the fixing pieces is adjusted, so that the shape of the helmet can be corrected according to the changes of the head.

[0004] For the adjustable orthopedic helmet represented by the utility model patent CN209899684U, the distance between the fixing piece and the shell needs to be manually adjusted to achieve the adjustment of the helmet, which is inconvenient to operate; and generally, the help of professionals such as doctors is required to determine the appropriate adjustment amount. Summary of the Invention

[0005] To solve the technical problems existing in the prior art, the utility model provides a thickness-variable layer structure and an orthopedic helmet with adjustable thickness. The orthopedic helmet includes an inner layer and an outer layer, and the inner layer can move outward to approach the outer layer; the thickness-variable layer structure is arranged between the inner layer and the outer layer. When the inner layer moves outward, the thickness-variable layer structure is compressed, and the thickness of the orthopedic helmet at the corresponding position becomes smaller, realizing the automatic adjustment of the orthopedic helmet, thereby providing corresponding space for the growth and development of the head.

[0006] In the embodiments of the utility model, the following technical solutions are adopted to implement: a thickness-variable layer structure, which is applied to an orthopedic helmet and is located between the outer layer and the inner layer of the orthopedic helmet; the thickness-variable layer structure is fixedly connected to the inner layer, or is arranged outside the inner layer and is limited in the space between the outer layer and the inner layer; when the thickness-variable layer structure is squeezed, it deforms and is compressed.

[0007] Preferably, the thickness-variable layer structure is an elastic columnar member, including a top, a bottom, and a main body part. The main body part is arranged between the top and the bottom; the bottom is fixedly connected to the inner layer of the orthopedic helmet.

[0008] Preferably, the variable-thickness layer structure is an elastic sheet member that matches the inner layer.

[0009] More preferably, the elastic sheet member is a hollow polyhedron structure provided with slits; the upper end of the hollow polyhedron structure is hollow, and each hollow polyhedron is provided with at least two slits; the lower end of the hollow polyhedron structure is closed to form a bottom support; when the hollow polyhedron structure is squeezed, the side surface of the hollow polyhedron bends along the slits, causing the entire hollow polyhedron structure to be compressed.

[0010] Furthermore, the at least two slits are randomly distributed or regularly arranged on the side surface of the hollow polyhedron.

[0011] The embodiment of the present utility model also provides an orthopedic helmet with adjustable thickness, including an outer layer, an inner layer, and a variable-thickness layer, and the variable-thickness layer adopts the above-mentioned variable-thickness layer structure; the inner layer and the outer layer are fixedly connected by clamping at the edges; when the inner layer is squeezed from the inside outwards, the inner layer moves outwards towards the outer layer.

[0012] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0013] 1. The present utility model provides a variable-thickness layer structure between the inner layer and the outer layer of the orthopedic helmet. When the inner layer moves outwards towards the outer layer, the variable-thickness layer structure is compressed, reducing the thickness of the orthopedic helmet at the corresponding position, automatically realizing the adjustment of the orthopedic helmet, and thus providing corresponding space for the growth and development of the skull. The space of the orthopedic helmet is automatically adjusted without manual operation, which is convenient to use and comfortable to wear.

[0014] 2. The present utility model combines the inner layer that can move outwards with the variable-thickness layer structure. The inner layer has an appropriate elastic space, and the deformation space of the orthopedic helmet is further enhanced through the variable-thickness layer structure, improving the flexibility of the adjustment of the orthopedic helmet.

[0015] 3. The variable-thickness layer structure can be designed as an elastic columnar member or an elastic sheet member; among them, the elastic sheet member can be a hollow elastic structure woven by filling units or a semi-hollow polyhedron structure with slits. The variable-thickness layer structure can be manufactured by 3D printing, which is easy to produce.

[0016] 4. The inner layer can adopt a lace-like hollow layer, and the outward movement of the inner layer is realized through the deformation of the lace. At this time, if the variable-thickness layer structure adopts an elastic columnar member, the elastic columnar member is arranged at the non-deformed position of the lace to avoid the adverse effect of the deformation of the lace in the inner layer on the elastic columnar member and improve the reliability.

[0017] In addition, the inner layer and the outer layer can also be connected at the edges through a deformable connecting member. When the connecting member is deformed by the edge of the inner layer, the outward movement of the inner layer is realized.

[0018] 5. The variable-thickness layer structure can be provided only at a local position of the orthopedic helmet, such as the rear half of the helmet. By providing the variable-thickness layer structure locally, the deformation space of the orthopedic helmet can be adjusted locally more flexibly according to actual orthopedic needs, improving the orthopedic effect of the local position of the head. In addition, the cost is reduced, and the air permeability of the whole helmet is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional structure diagram of the orthopedic helmet in an embodiment of the present invention;

[0020] Figure 2 is a schematic structure diagram after the first shell and the second shell of the orthopedic helmet are disassembled;

[0021] Figure 3 is a schematic diagram after the outer layer, the variable-thickness layer, and the inner layer of the orthopedic helmet in Embodiment 1 of the present invention are disassembled;

[0022] Figure 4 is a schematic cross-sectional view of the orthopedic helmet in Embodiment 1 of the present invention at the variable-thickness layer;

[0023] Figure 5 is a schematic diagram after the outer layer, the variable-thickness layer, and the inner layer of the orthopedic helmet in Embodiment 2 of the present invention are disassembled;

[0024] Figure 6 is a schematic diagram after the outer layer, the variable-thickness layer, and the inner layer of the orthopedic helmet in Embodiment 3 of the present invention are disassembled;

[0025] Figure 7 is a schematic structure diagram of the variable-thickness layer in Embodiment 1 of the present invention;

[0026] Figure 8 is a schematic diagram of the knitting structure of the variable-thickness layer in an embodiment of the present invention;

[0027] Figure 9 is a schematic structure diagram of the variable-thickness layer in Embodiment 3 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0029] Embodiment 1

[0030] As Figure 1 、 Figure 2As shown in the figure, the orthopedic helmet with adjustable thickness provided in this embodiment can be divided into a first shell 11 and a second shell 12 that are plugged into each other, and specifically includes an outer layer 13, an inner layer 14, and a thickness variable layer 15. As Figure 3 , 4 shown, the edges of the inner layer and the outer layer are snap-fitted and fixed. Bump points 141 can be provided at the edges of the inner layer, and snap holes 131 matching the bump points can be provided at the edges of the outer layer. The inner layer and the outer layer can be snap-fitted by embedding the bump points into the snap holes. The thickness variable layer is located between the outer layer and the inner layer.

[0031] In this embodiment, the inner layer is a deformable hollow layer, that is, a hollow layer in a drawn pattern. The hollow layer is provided with a plurality of cracks 142 for deformation. When the inner layer is extruded by the skull from the inside out, the hollow layer will stretch outward along the cracks, so as to realize the outward movement of the inner layer and approach the outer layer to expand the wearing space of the orthopedic helmet. As Figure 7 shown, the thickness variable layer adopts elastic columnar members, including a top 153, a bottom 151, and a main body part 152. The main body part is provided between the top and the bottom. Preferably, fixing points 143 are alternately arranged among the plurality of cracks of the hollow layer, and the bottom 151 of the elastic columnar member is connected to the fixing points of the hollow layer. The main body part of the elastic columnar member is woven by filling units. The specific structure of the filling unit is not limited as long as it is a hollow elastic structure after weaving, as Figure 8 shown.

[0032] In addition, the inner layer can also adopt a non-deformable hollow layer, and a deformable connecting member is provided at the edges of the inner layer and the outer layer to realize the connection between the inner layer and the outer layer. For example, the edges of the inner layer and the outer layer are pasted by elastic sponge. When the edge of the inner layer is extruded by the skull, the elastic sponge will be compressed, so as to realize the outward movement of the inner layer and approach the outer layer.

[0033] Embodiment 2

[0034] Based on the same concept as Embodiment 1, the orthopedic helmet with adjustable thickness provided in this embodiment is also divided into a first shell and a second shell that are plugged into each other, and specifically includes an outer layer 13, an inner layer 14, and a thickness variable layer 15. The inner layer can adopt a deformable hollow layer; the inner layer can also adopt a non-deformable hollow layer, which is realized by a deformable connecting member provided at the edges of the inner layer and the outer layer.

[0035] The main difference from Embodiment 1 is that the thickness variable layer in this embodiment is an integral elastic sheet member matching the inner layer, as Figure 5 shown. The integral elastic sheet member is limited in the space between the outer layer and the inner layer. When the inner layer moves outward, the integral elastic sheet member is extruded, and the elastic sheet member is compressed to provide an orthopedic space for the skull. The elastic sheet member can adopt a hollow elastic structure woven by filling units, and the weaving structure is as Figure 8As shown, it can be specifically a one-piece hollow elastic structure by 3D printing.

[0036] Embodiment 3

[0037] Based on the same concept as Embodiment 1, the orthopedic helmet with adjustable thickness provided in this embodiment is also divided into a first shell and a second shell that are plugged into each other, and specifically includes an outer layer 13, an inner layer 14, and a thickness variable layer 15. The inner layer can adopt a deformable hollow layer; the inner layer can also adopt a non-deformable hollow layer, which is realized by a deformable connecting piece arranged at the edges of the inner layer and the outer layer.

[0038] Similar to Embodiment 2, the thickness variable layer in this embodiment also adopts an elastic sheet piece that matches the inner layer, such as Figure 6 shown; the difference is that the elastic sheet piece in this embodiment is a hollow polyhedron structure 16 with slits, as Figure 9 shown.

[0039] The upper end 162 of the hollow polyhedron structure is hollow, and each hollow polyhedron is provided with at least two slits 163, which can be randomly distributed or regularly arranged on the side surface of the hollow polyhedron; the lower end 161 of the hollow polyhedron structure is closed to form a bottom support. When the inner layer moves outwards, the hollow polyhedron structure is squeezed, and the side surface of the hollow polyhedron bends along the slits, so that the whole hollow polyhedron structure is compressed, thereby providing an orthopedic space for the skull.

[0040] In order to make the elastic sheet piece formed by the hollow polyhedron structure better match the inner layer and the outer layer, preferably, the elastic sheet piece can be set as several pieces, that is, a split elastic sheet piece. For example, the elastic sheet piece is divided into an upper piece, a middle piece, and a lower piece.

[0041] In several embodiments of the present invention, the thickness variable layer can be locally arranged inside the orthopedic helmet, preferably in the second shell of the helmet, that is, the rear half of the helmet.

[0042] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A variable thickness layer structure, characterized in that: The variable thickness layer structure is applied to an orthopedic helmet and is located between the outer layer and the inner layer of the orthopedic helmet; the variable thickness layer structure is fixedly connected to the inner layer, or is arranged outside the inner layer and confined in the space between the outer layer and the inner layer; the variable thickness layer structure is deformed and compressed when squeezed.

2. The variable thickness layer structure according to claim 1, characterized in that: The variable thickness layer structure is an elastic columnar member, comprising a top, a bottom and a main body, wherein the main body is arranged between the top and the bottom; and the bottom is fixedly connected to the inner layer of the orthopedic helmet.

3. The variable thickness layer structure according to claim 2, characterized in that: The main body of the elastic columnar member is woven by using filling units.

4. The variable thickness layer structure according to claim 1, characterized in that: The variable thickness layer structure is an elastic sheet member matching the inner layer.

5. The variable thickness layer structure according to claim 4, characterized in that: The elastic sheet piece is a hollow elastic structure woven from filling units.

6. The variable thickness layer structure according to claim 4, characterized in that: The elastic sheet-like member is a hollow polyhedron structure with cracks; the upper end of the hollow polyhedron structure is hollow, and each hollow polyhedron is provided with at least two cracks; the lower end of the hollow polyhedron structure is closed to form a bottom support; When the hollow polyhedron structure is squeezed, the side surfaces of the hollow polyhedron are bent along the cracks so that the entire hollow polyhedron structure is compressed.

7. The variable thickness layer structure according to claim 6, characterized in that: The at least two cracks are randomly distributed or regularly arranged on the side surfaces of the hollow polyhedron.

8. An orthopedic helmet with adjustable thickness, characterized in that: It comprises an outer layer, an inner layer and a variable thickness layer, wherein the variable thickness layer adopts the variable thickness layer structure described in any one of claims 1 to 7; the inner layer and the outer layer are clamped and fixed at their edges; when the inner layer is squeezed from the inside to the outside, the inner layer moves outward to move closer to the outer layer.

9. The thickness-adjustable orthopedic helmet according to claim 8, characterized in that: The variable thickness layer is locally disposed within the orthopedic helmet.

10. The thickness-adjustable orthopedic helmet according to claim 8, characterized in that: The orthopedic helmet is divided into a first shell and a second shell which are plugged into each other.

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