CN220443163U - Universal football leg guard based on negative poisson ratio structure - Google Patents
Universal football leg guard based on negative poisson ratio structure Download PDFInfo
- Publication number
- CN220443163U CN220443163U CN202321810429.8U CN202321810429U CN220443163U CN 220443163 U CN220443163 U CN 220443163U CN 202321810429 U CN202321810429 U CN 202321810429U CN 220443163 U CN220443163 U CN 220443163U
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- China
- Prior art keywords
- shock
- negative poisson
- plate
- ratio structure
- absorbing plate
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- 230000035939 shock Effects 0.000 claims abstract description 65
- 229920000431 shape-memory polymer Polymers 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 30
- 238000013016 damping Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims 6
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model provides a universal football leg guard based on a negative poisson ratio structure, which comprises a shock absorption plate, wherein the shock absorption plate is a shape memory polymer shock absorption plate, the shock absorption plate is of the negative poisson ratio structure, and elastic belts for fixing are arranged at the left end and the right end of the shock absorption plate. The shock absorbing plate is a shape memory polymer shock absorbing plate, when the temperature of the shock absorbing plate reaches the critical temperature of 60 ℃, the shock absorbing plate can be softened and deformed after reaching the critical state, and when the temperature is reduced to 30 ℃, the shock absorbing plate still has certain deformability, so that the shock absorbing plate can be shaped at will, the fit degree of the shock absorbing plate and the lower leg of a football player is improved, and the protection requirements of different legs of different football players are met.
Description
Technical Field
The utility model belongs to the field of sports equipment, and particularly relates to a universal football leg guard based on a negative poisson ratio structure.
Background
The current mainstream structure of the football leg guard is a shell made of hard plastic or carbon fiber materials, and is lined with a soft foam pad. The leg guard plays a role in protecting legs from impact and injury in football games.
However, the sports football leg guard has the following disadvantages:
1. the weight and the protective performance are difficult to be considered: because of the structure and the material of the leg guard, when the leg guard is designed to be thicker, the protection capacity is enough, but the load of the athlete can be increased, and the flexibility and the agility of the athlete are affected; when the thickness of the structure is reduced, the protection capability is reduced.
2. Unreasonable fixing mode: some leg shields are not secured in a secure manner and are prone to falling out during play, thereby exposing the legs to impact and injury.
3. Not conforming to leg shape: because everyone has different leg shapes, the universal leg guard often does not conform well to the individual's leg shape, resulting in discomfort and instability in wear.
Disclosure of Invention
In view of the above, the present utility model aims to provide a universal football leg guard based on a negative poisson ratio structure, so as to enhance the damping capability of the guard, adapt to different leg types of different players, and solve the problem that the existing football leg guard cannot completely conform to different leg shapes of each player.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a general football leg guard based on negative poisson's ratio structure, includes the shock attenuation board, the shock attenuation board is shape memory polymer shock attenuation board, and this shock attenuation board is negative poisson's ratio structure, the shock attenuation board left and right-hand member is equipped with fixed with the elastic webbing.
Further, the buckle that has extended respectively to shock attenuation board left and right-hand member, and the buckle looks symmetry setting of shock attenuation board left and right-hand member, the buckle is equipped with wears to take the hole, elastic band both ends all are equipped with fixed with the magic subsides, and this elastic band both ends portion is worn out by two buckles of symmetry, and the elastic band tip is fixed through the magic subsides.
Further, the shock-absorbing plate is provided with three types of big, medium and small, and the corresponding sizes are respectively:
large-size shock attenuation board: the thickness is 15mm, the upper side length and the lower side length are respectively 16cm and 10cm,
the height is 18cm;
medium-size shock attenuation board: the thickness is 12mm, the upper side length and the lower side length are respectively 12cm and 8cm,
the height is 18cm;
small-size shock attenuation board: the thickness is 8mm, the upper side length and the lower side length are respectively 10cm and 8cm,
and a height of 18cm.
Further, the shock-absorbing plate is matched with a cloth pocket with an opening at the top, the cloth pocket is sleeved outside the shock-absorbing plate, reserved openings are respectively arranged at the left side and the right side of the cloth pocket, and the elastic belt penetrates out from the reserved openings.
Further, the cloth pocket is provided with a sealing magic tape in a matching mode at the top opening, and the opening is covered by the sealing magic tape.
Compared with the prior art, the universal football leg guard based on the negative poisson ratio structure has the following advantages:
(1) The shock absorbing plate is a shape memory polymer shock absorbing plate, when the temperature of the shock absorbing plate reaches the critical temperature of 60 ℃, the shock absorbing plate can be softened and deformed after reaching the critical state, and when the temperature is reduced to 30 ℃, the shock absorbing plate still has certain deformability, so that the shock absorbing plate can be shaped at will, the fit degree of the shock absorbing plate and the lower leg of a football player is improved, and the protection requirements of different legs of different football players are met.
(2) The damping plate has a negative poisson ratio structure, has strong damping capacity and strong impact resistance and damage resistance, and can better protect football players.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic perspective view of a universal football leg guard based on a negative poisson's ratio structure according to the present embodiment;
fig. 2 is a schematic perspective view of a cloth pocket in the football leg guard according to the embodiment;
fig. 3 is a schematic perspective view of a shock absorbing plate in the football leg guard according to the embodiment;
fig. 4 is a diagram showing the negative poisson's ratio of the shock absorbing plate in the present embodiment.
Reference numerals illustrate:
1-cloth pocket; 11-reserving a port; 2-a shock absorbing plate; 21-a buckle; 22-negative poisson ratio unit cell; 3-sealing the magic tape; 5-elastic band.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
A universal football leg guard based on a negative poisson ratio structure is shown in fig. 1, and comprises a cloth pocket 1 and a shock absorbing plate 2, wherein the shock absorbing plate 2 is arranged in the cloth pocket 1.
The structure of the cloth pocket 1 is shown in fig. 2, and is correspondingly arranged with the shock absorbing plate 2, the cloth pocket 1 is an elastic cloth pocket, the elastic cloth is made of cloth woven by cloth or elastic fiber, the top end of the cloth pocket 1 is provided with an opening, a sealing magic tape 3 is arranged at the opening, for example, a hook surface of the sealing magic tape 3 is arranged at the upper edge of one side surface of the cloth pocket 1, a hair pasting surface of the sealing magic tape 3 is arranged at the upper part of the outer surface of the other side surface of the cloth pocket 1, and after the hook surface and the hair pasting surface of the sealing magic tape 3 are bonded, the opening of the cloth pocket 1 is sealed by the sealing magic tape 3. Two reserved openings 11 are respectively formed in the left end and the right end of the cloth pocket 1, and the two reserved openings 11 in the left end of the cloth pocket 1 and the two reserved openings 11 in the right end are symmetrical.
The structure of the damping plate 2 is shown in fig. 3, and the damping plate 2 is a shape memory polymer damping plate with a negative poisson ratio structure, so that the damping plate has a deformation function in the direction perpendicular to the damping plate, and the damping plate is integrally formed through 3D printing. The negative poisson ratio structure can adopt a common negative poisson ratio structure in the market, or can adopt a structure as shown in fig. 4, and comprises a plurality of structural layers, wherein the negative poisson ratio unit cell of each structural layer is of a concave hexagonal structure, the negative poisson ratio unit cells 22 of the upper structural layer and the negative poisson ratio unit cells of the lower structural layer are staggered for the adjacent structural layers, and the bottom end of each negative poisson ratio unit cell of the upper structural layer is inserted into a position between two adjacent negative poisson ratio unit cells of the lower structural layer. This burden poisson's ratio structure greatly improves shock attenuation, shock resistance, the vandalism ability of shock attenuation board, lightens shock attenuation board weight simultaneously, can not bring weight burden for football sportsman, improves sportsman and wears the comfort level. The left end and the right end of the shock absorption plate 2 are respectively provided with two buckles 21 in a protruding and extending mode, the 2 buckles 21 at the left end of the shock absorption plate 2 are symmetrical to the 2 buckles 21 at the right end, meanwhile, the positions of the buckles 21 correspond to the reserved openings 11 of the cloth pocket 1, and after the shock absorption plate 2 is shifted into the cloth pocket 1, the buckles 21 penetrate out of the corresponding reserved openings 11, as shown in fig. 1. The buckle 21 is provided with a mounting hole for threading the elastic belt, an elastic belt 5 is arranged between every two symmetrical buckles 21, rectangular magic tapes are arranged at two ends of the elastic belt 5, and after 2 buckles 21 are threaded out of the two ends of the elastic belt 5, the ends of the elastic belt 5 are fixed through the magic tapes.
In the utility model, according to the strong and strong demand of the lower leg of a player and the demand of the countermeasure intensity, the damping plate 2 is provided with three types of large, medium and small, and the corresponding sizes are respectively as follows:
large-size shock attenuation board: the thickness is 15mm, the upper side length and the lower side length are respectively 16cm and 10cm,
the height is 18cm;
medium-size shock attenuation board: the thickness is 12mm, the upper side length and the lower side length are respectively 12cm and 8cm,
the height is 18cm;
small-size shock attenuation board: the thickness is 8mm, the upper side length and the lower side length are respectively 10cm and 8cm,
and a height of 18cm.
In the utility model, the damping plate 2 is plate-shaped, when in use, firstly, the damping plate 2 with the corresponding model is selected according to the calf condition and the countermeasure intensity of a sportsman, the damping plate 2 is soaked in hot water with the temperature of 60-80 ℃, the damping plate 2 is completely softened for about 10 seconds, the critical state of the damping plate is reached, the damping plate can be softened and deformed after the critical state is reached, and the damping plate still has certain deformation capability when the temperature of the damping plate is reduced to 30 ℃. And heating the shock absorbing plate in water bath to soften, taking out, and then when the temperature of the shock absorbing plate is reduced to the human body receiving temperature of 40 ℃ for example, wrapping the shock absorbing plate 2 on the limb corresponding to the position to be protected of the lower leg, so that the shock absorbing plate 2 deforms to completely fit the surface of the limb. Since the pad 2 is cooled and hardened by taking out the protector from the hot water for about 30 seconds in the normal temperature environment, the pad is deformed to fit the limb within 30 seconds. After the shock-absorbing plate is attached to the leg shape of a player and deformed, the shock-absorbing layer 2 is inserted into the cloth pocket 1, the elastic band 5 is wound around the rear side of the lower leg and then penetrates into the band penetrating holes of the buckle, and the shock-absorbing plate is fixed through the magic tape, so that the shock-absorbing plate is fixed on the lower leg of the player.
For different players with different leg shapes, the shock absorbing plate 2 can be in a non-fitting condition, at the moment, the shock absorbing plate 2 can be taken out of the cloth pocket 1, and the shock absorbing layer 2 is fitted on the limb by repeating the operation after being soaked in hot water. And, when washing after the match, can take out the shock attenuation board from cloth pocket 1, directly wash cloth pocket 1, convenient and fast.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. A general football leg guard based on negative poisson ratio structure, its characterized in that: the novel anti-collision shock absorber comprises a shock absorber plate (2), wherein the shock absorber plate (2) is a shape memory polymer shock absorber plate, the shock absorber plate is of a negative poisson ratio structure, and elastic belts (5) for fixing are arranged at the left end and the right end of the shock absorber plate (2).
2. The universal football leg guard based on the negative poisson's ratio structure of claim 1, wherein: the utility model discloses a damping plate, including shock attenuation board (2), buckle (21) are extended respectively to shock attenuation board (2) left and right ends, and the buckle looks symmetry of shock attenuation board (2) left and right ends sets up, buckle (21) are equipped with the wearing hole, elastic webbing (5) both ends all are equipped with fixed with the magic subsides, and these elastic webbing (5) both ends are worn out by two buckles (21) of symmetry, and elastic webbing (5) tip is fixed through the magic subsides.
3. The universal football leg guard based on the negative poisson's ratio structure of claim 1, wherein: the shock-absorbing plate (2) is provided with three types of large, medium and small, and the corresponding sizes are respectively:
large-size shock attenuation board: the thickness is 15mm, the upper side length and the lower side length are respectively 16cm and 10cm,
the height is 18cm;
medium-size shock attenuation board: the thickness is 12mm, the upper side length and the lower side length are respectively 12cm and 8cm,
the height is 18cm;
small-size shock attenuation board: the thickness is 8mm, the upper side length and the lower side length are respectively 10cm and 8cm,
and a height of 18cm.
4. A universal football leg guard based on a negative poisson's ratio structure according to any one of claims 1 to 3, characterised in that: the shock-absorbing plate (2) is matched with a cloth pocket (1) with an opening at the top, the cloth pocket (1) is sleeved outside the shock-absorbing plate (2), reserved openings (11) are respectively formed in the left side and the right side of the cloth pocket (1), and the elastic band (5) penetrates out of the reserved openings (11).
5. The universal football leg guard based on the negative poisson's ratio structure of claim 4, wherein: the cloth pocket (1) is provided with a sealing magic tape (3) at the top opening, and the opening is covered by the sealing magic tape (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321810429.8U CN220443163U (en) | 2023-07-11 | 2023-07-11 | Universal football leg guard based on negative poisson ratio structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321810429.8U CN220443163U (en) | 2023-07-11 | 2023-07-11 | Universal football leg guard based on negative poisson ratio structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443163U true CN220443163U (en) | 2024-02-06 |
Family
ID=89725296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321810429.8U Active CN220443163U (en) | 2023-07-11 | 2023-07-11 | Universal football leg guard based on negative poisson ratio structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443163U (en) |
-
2023
- 2023-07-11 CN CN202321810429.8U patent/CN220443163U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |