A poly-methacrylimide sandwiched carbon fiber knee prosthesis

Abstract

The utility model relates to a kind of sports protective equipment, specifically to a carbon fiber knee protector with polymethacrylimide sandwich, including knee pad main body and several connecting knee pad main body's elastic bands, knee pad main body includes structure main body and the EVA sponge body connected with structure main body, elastic band one end is fixedly connected with EVA sponge body one side, and elastic band other end is movably connected with the other side of EVA sponge body;Structure main body is multilayer composite structure, from inside to outside in order to first carbon fiber layer, polymethacrylimide layer and second carbon fiber layer;The utility model can absorb energy shock attenuation, reduce impact force, effectively protect the knee of user, reduce the impact force when being impacted, while reducing weight, improve the comfort of wearing, reduce the influence to user movement.

Description

Technical Field

[0001] This utility model relates to a sports protective gear, specifically a carbon fiber knee brace with a polymethacrylamide core. Background Technology

[0002] Knee braces are essential protective gear during exercise, protecting the knees and reducing the risk of injury. Existing knee braces typically use pure carbon fiber for their main structural components. During exercise, in the event of an impact, the force is instantly transmitted to the body through this rigid structure, resulting in significant impact and a high risk of soft tissue contusions or bone and joint damage. Furthermore, pure carbon fiber, while meeting protective requirements, results in considerable weight, impacting both user comfort and flexibility.

[0003] Therefore, there is an urgent need for a new type of knee brace that can effectively protect the user's knees, reduce the impact force on the knees when hit, and at the same time improve wearing comfort and reduce the impact on the user's exercise. Utility Model Content

[0004] This invention provides a carbon fiber knee brace with a polymethacrylimide core, which can effectively protect the user's knee, reduce the impact force on the knee when hit, and at the same time improve wearing comfort and reduce the impact on the user's exercise.

[0005] The present invention adopts the following technical solution:

[0006] A carbon fiber knee brace with a polymethacrylimide core includes a knee brace body and several telescopic straps connecting the knee brace body. The knee brace body includes a structural body and an EVA foam body connected to the structural body. One end of the telescopic strap is fixedly connected to one side of the EVA foam body, and the other end of the telescopic strap is movably connected to the other side of the EVA foam body. The structural body is a multi-layer composite structure, consisting of a first carbon fiber layer, a polymethacrylimide layer, and a second carbon fiber layer from the inside out.

[0007] To further protect the appearance of the device, an anti-scratch coating is applied to the outer surface of the second carbon fiber layer.

[0008] To enhance ease of wear and comfort, a fabric layer is fitted over the inner and outer surfaces of the EVA foam body. An EVA cushioning layer is located on the inner surface of the first carbon fiber layer. A buckle is fixed to one movable end of the elastic band, and clips that engage with the buckle are fixed to the sides of the EVA foam body. Furthermore, to further reduce displacement during wear, Velcro is provided on the inner side of the end of the elastic band connected to the buckle. Two elastic bands are located at the top and bottom of the knee brace body, respectively, and are bonded to the fabric layer covering the EVA foam body via Velcro for added stability. To balance performance and cost, the thickness ratio of the first carbon fiber layer, the polymethacrylimide layer, and the second carbon fiber layer is 1.2:2.5:0.8, with a total thickness of 3.5 mm.

[0009] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: 1. Compared with traditional knee braces made entirely of pure carbon fiber, the main body of this utility model adopts a multi-layer composite structure, with a polymethacrylamide layer as the core between two carbon fiber layers. This not only effectively buffers external impact forces and improves the protective ability of the device, protecting the user's knees, but also reduces the amount of carbon fiber used, reducing weight and production costs; 2. This utility model has a fabric layer covering the inner and outer surfaces of the EVA sponge, and Velcro is provided on the inner side of the end of the telescopic strap connected to the buckle. When worn, the Velcro is further fixed by adhering to the fabric layer, increasing the wearing firmness and reducing the occurrence of displacement; 3. An EVA buffer layer is covered on the inner side of the first carbon fiber layer, further improving the wearing comfort and impact resistance of the device. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 4 ;

[0014] Figure 5 This is a schematic cross-sectional view of the main structure of this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] Knee brace body 1, structural body 11, first carbon fiber layer 111, polymethacrylimide layer 112, second carbon fiber layer 113, scratch-resistant coating 114, EVA cushioning layer 115, EVA sponge 12, elastic band 2, buckle 21, clip 22, Velcro 23. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] See Figures 1 to 5 A carbon fiber knee brace with a polymethacrylimide core includes a knee brace body 1 and several telescopic straps 2 connected to the knee brace body 1. The knee brace body 1 includes a structural body 11 and an EVA foam body 12 connected to the structural body 11. One end of the telescopic strap 2 is fixedly connected to one side of the EVA foam body 12, and the other end of the telescopic strap 2 is movably connected to the other side of the EVA foam body 12. The structural body 11 is a multi-layer composite structure, consisting of a first carbon fiber layer 111, a polymethacrylimide layer 112, and a second carbon fiber layer 113 from the inside out. An anti-scratch coating 114 is laminated on the outer surface of the second carbon fiber layer 113.

[0019] See Figures 1 to 5 To enhance ease of wear and comfort, the inner and outer surfaces of the EVA foam 12 are covered with fabric layers, and the inner surface of the first carbon fiber layer 111 is provided with an EVA cushioning layer 115. A buckle 21 is fixed to one movable end of the elastic band 2, and a pin 22 is fixed to the side of the EVA foam 12 to engage with the buckle 21. Furthermore, to further reduce displacement during wear, Velcro 23 is provided on the inner side of the end of the elastic band 2 connected to the buckle 21. There are two elastic bands 2, located at the top and bottom of the knee brace body 1, respectively. During wear, the Velcro 23 adheres to the fabric layer on the outer surface of the EVA foam 12, further stabilizing the device. The thickness ratio of the first carbon fiber layer 111, the polymethacrylamide layer 112, and the second carbon fiber layer 113 is 1.2:2.5:0.8, and the total thickness of the first carbon fiber layer 111, the polymethacrylamide layer 112, and the second carbon fiber layer 113 is 3.5 mm.

[0020] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A poly-methacrylimide sandwiched carbon fiber knee sleeve comprising a knee sleeve body and a plurality of stretchable bands connected to said knee sleeve body, characterized in that: The knee brace body includes a structural body and an EVA foam body connected to the structural body. One end of the elastic band is fixedly connected to one side of the EVA foam body, and the other end of the elastic band is movably connected to the other side of the EVA foam body. The structural body is a multi-layer composite structure, consisting of a first carbon fiber layer, a polymethacrylimide layer, and a second carbon fiber layer from the inside out.

2. A poly-methacrylimide sandwiched carbon fiber knee brace according to claim 1, characterized by: The outer surface of the second carbon fiber layer is provided with a scratch-resistant coating.

3. A poly-methacrylimide sandwiched carbon fiber knee prosthesis according to claim 1 or 2, characterized in that: One movable end of the telescopic belt is fixedly provided with a buckle, and the side of the EVA sponge is fixedly provided with a pin that is movably engaged with the buckle.

4. A poly-methacrylimide sandwiched carbon fiber knee brace according to claim 3, characterized by: The outer surface of the EVA sponge is covered with a fabric layer, the inner surface of the first carbon fiber layer is covered with an EVA cushioning layer, and the inner side of the end of the telescopic belt connected to the buckle is covered with Velcro.

5. A poly-methacrylimide sandwiched carbon fiber knee brace according to claim 1 or 2 or 4, characterized by: There are two telescopic belts.

6. A poly-methacrylimide sandwiched carbon fiber knee brace according to claim 1 or 2 or 4, characterized by: The thickness ratio of the first carbon fiber layer, the polymethacrylimide layer, and the second carbon fiber layer is: 1.2:2.5:0.8。 7. A poly-methacrylimide sandwiched carbon fiber knee brace according to claim 6, characterized by: The total thickness of the first carbon fiber layer, the polymethacrylimide layer, and the second carbon fiber layer is 3.5 mm.

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