Pick racket with sound absorption and shock absorption effects

Abstract

The utility model relates to a Pick racket with sound absorption and shock absorption functions, which comprises a racket and a ball rod, and the racket is fixedly connected with the ball rod. The racket comprises a honeycomb layer and panel layers distributed on the two side faces of the honeycomb layer, and each panel layer is formed by sequentially stacking an epoxy glue layer, first glass fiber felt cloth, a porous elastic foaming layer, second glass fiber felt cloth and carbon fiber prepreg cloth from inside to outside. Vibration and noise generated by ball hitting can be greatly absorbed in the porous elastic foaming layer and the glass fiber felt cloth, so that the ball hitting noise and vibration are effectively reduced, and the ball hitting strength and the sound absorption and shock absorption effects of the Pick racket are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sports appliances, in particular to a pickleball racket with sound absorption and shock absorption functions. BACKGROUND

[0002] Pickleball is a sport that originated in the United States, using a pickleball racket to hit a ball, combining elements of table tennis, tennis and badminton. Currently, the main material of pickleball rackets on the market is polypropylene honeycomb board, which produces a lot of vibration and noise when hitting the ball, making users need to withstand a lot of vibration force, resulting in poor user hand feeling, and long-term sports may cause professional sports injuries. In addition, the existing product has loud and crisp noise when hitting, and the hitting experience needs to be improved. SUMMARY

[0003] Therefore, it is necessary to provide a pickleball racket with sound absorption and shock absorption functions to solve the problems of large vibration and noise and crispness of the current pickleball racket.

[0004] The utility model discloses a kind of pickleball rackets, including racket and ball rod, the racket is fixedly connected with the ball rod;The racket includes honeycomb layer and the panel layer distributed in the two side faces of the honeycomb layer, the panel layer is stacked from inside to outside by epoxy adhesive layer, first glass fiber felt cloth, porous elastic foaming layer, second glass fiber felt cloth and first carbon fiber prepreg in sequence.

[0005] In some embodiments, the porous elastic foaming layer is made of epoxy foaming shock-absorbing sheet, and the epoxy foaming shock-absorbing sheet is EVA-epoxy foaming-glass fiber composite shock-absorbing sheet, such as EEC series epoxy foaming core material K602, K621, K630 or K660 of Huizhou Zhicheng New Material Technology Co., Ltd.

[0006] In some embodiments, the foaming density of the epoxy foaming shock-absorbing sheet is 0.015 g / cm 3 ~0.06g / cm 3 .

[0007] In some embodiments, the thickness of the porous elastic foaming layer is 0.3mm~1.0mm.

[0008] In some embodiments, the racket further includes a foaming layer wrapped around the side edges of the honeycomb layer and fixedly connected with the panel layer.

[0009] In some embodiments, the edge foaming layer comprises a first edge foaming layer, a second carbon fiber prepreg, a second edge foaming layer and a third carbon fiber prepreg arranged from inside to outside, the first edge foaming layer and / or the second edge foaming layer is made of fiber reinforced epoxy foaming sheet, such as EEC series epoxy foaming core material K812 or K680 of Huizhou Zhicheng New Material Technology Co., Ltd.

[0010] In some embodiments, the foaming density of the fiber reinforced epoxy foaming sheet is 0.036g / cm 3 ~0.09 g / cm 3 .

[0011] In some embodiments, the ball club comprises a connecting rod and a handle, the connecting rod is fixedly connected with the honeycomb layer, and the handle is wrapped on the connecting rod.

[0012] In some embodiments, the handle is made of fiber reinforced epoxy foaming material, such as EEC series epoxy foaming core material K119, K102, K103 or K127 of Huizhou Zhicheng New Material Technology Co., Ltd.

[0013] In some embodiments, the foaming density of the fiber reinforced epoxy foaming material is 0.14g / cm 3 ~0.35g / cm 3 .

[0014] Compared with the prior art, the utility model at least has the following beneficial effects:

[0015] The utility model discloses a panel layer is made of epoxy adhesive layer, first glass fiber felt cloth, porous elastic foaming layer, second glass fiber felt cloth and first carbon fiber prepreg, and the porous elastic foaming layer is between two glass fiber felt cloths, and the symmetrical arrangement structure is formed, so as to utilize the lightweight high-strength of glass fiber felt cloth and the energy of vibration dispersion transmission as the framework, and the sound absorption rate is as high as 90%, and the porous elastic structure of the porous elastic foaming layer has the characteristics of sound absorption and shock absorption, so that the vibration generated by hitting the ball can be greatly absorbed in the porous elastic foaming layer and the glass fiber felt cloth, thereby effectively reducing the hitting noise and vibration.

[0016] Combined with the edge sealing of the fiber reinforced epoxy foaming sheet, the vibration energy can be weakened when being transmitted to the edge. The outer layer of the handle is made of fiber reinforced epoxy foaming material, which can effectively reduce the energy transmission of the vibration to the human hand when the player hits the ball, avoid injury and realize the sound absorption and shock absorption effect of the pickleball racket. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure schematic diagram of the pickleball racket shown in the embodiments of the utility model.

[0018] Figure 2 This is a schematic diagram of the stacked symmetrical structure of the racket shown in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the racket shown in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the cue stick shown in an embodiment of the present invention. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] See Figure 1 This utility model provides a schematic diagram of the structure of a Peak racket, which includes a racket 1 and a shaft 2, wherein the racket 1 and the shaft 2 are fixedly connected; as shown Figure 2 As shown, the racket 1 includes a honeycomb layer 11 and a panel layer 12 distributed on both sides of the honeycomb layer 11. The panel layer 12 is composed of an epoxy adhesive layer 121, a first glass fiber felt 122, a porous elastic foam layer 123, a second glass fiber felt 124, and a first carbon fiber prepreg 125 stacked sequentially from the inside to the outside.

[0025] In the embodiment, the honeycomb layer 11 is a polypropylene honeycomb structure, an aramid honeycomb structure, or an aluminum honeycomb structure, etc. The epoxy glue layer 121 is a glue layer laid by epoxy resin glue. The glass fiber felt cloth is also a glass fiber felt sheet, which is a felt-like sheet laid by intermediate fixed-length glass fiber and is a waterproof roll made by cooperation with emulsified asphalt. The density of the glass fiber felt cloth is only one fourth of that of steel, but the material weight is much higher than that of the same quality metal, and the glass fiber felt cloth has the characteristics of light weight and high strength, and the sound absorption rate of the glass fiber felt cloth is as high as 90% or more, and has excellent sound absorption effect. At the same time, the glass fiber felt cloth has countless small pores and needles, and can form an interpenetrating structure with the porous elastic material layer, so that the material interface of the panel layer 12 is better combined and the material strength is enhanced.

[0026] The porous elastic foaming layer 123 is a porous elastic layer foamed by foaming material, which can be polyurethane foam (EPU) material, polystyrene foam (EPS) material, polyethylene foam (EPE) material, polypropylene foam (EPP) material, polyvinyl chloride foam (EPVC) material, phenolic foam (EP) material, silica gel foam (ESi) material or bio-based foam (EBB) material, etc.

[0027] The carbon fiber prepreg has the characteristics of high strength, light weight, corrosion resistance and easy construction, and the first carbon fiber prepreg 125 is used as the outermost layer of the panel layer, which can effectively resist the impact force when hitting the ball without breaking, and is not easy to be corroded by pollution, thereby improving the service life of the badminton racket.

[0028] In the embodiment, the epoxy glue layer 121, the first glass fiber felt cloth 122, the porous elastic foaming layer 123, the second glass fiber felt cloth 124 and the first carbon fiber prepreg 125 are stacked from inside to outside to form the panel layer 12, the carbon fiber prepreg 12 can be used to resist the front impact force when hitting the ball, the impact force is absorbed by the second glass fiber felt cloth 124 to offset part of the vibration and noise, then reaches the porous elastic foaming layer 123, the impact force is greatly attenuated under the action of the porous elastic structure, and finally the remaining vibration and noise are offset by the first glass fiber felt cloth 122 to realize effective sound absorption and shock absorption.

[0029] In some embodiments, the porous elastic foaming layer 123 is foamed and made of epoxy foaming shock-absorbing sheet.

[0030] In the embodiment, the epoxy foaming shock-absorbing sheet is specifically an EVA (ethylene-vinyl acetate copolymer)-epoxy foaming-glass fiber composite shock-absorbing sheet, which is foamed at a foaming density of 0.015 g / cm 3 ~0.06 g / cm 3The foamed layer, such as the EEC series epoxy foam core materials K602, K601, K621, K630 or K660 of Huizhou Zhicheng New Material Technology Co., Ltd., uses ultra-low density foamed materials as the porous elastic foamed layer 123 of the panel layer, which can improve the porosity of the foamed layer and thus enhance the sound absorption and vibration reduction effect.

[0031] Optionally, the thickness of the porous elastic foam layer 123 is 0.3mm to 1.0mm to meet the design specifications of Peak rackets, avoid the Peak rackets from feeling bulky due to excessive foam layer thickness, and thus ensure the user experience of Peak rackets.

[0032] In some embodiments, such as Figure 3 As shown, the racket 1 also includes an edge-wrapping foam layer 13, which wraps around the side of the honeycomb layer 11 and is fixedly connected to the panel layer 12.

[0033] In this embodiment, a foamed material is used to wrap the edges of the racket 1. This utilizes the lightweight nature of the foamed material to protect the edges of the racket 1 while reducing the increase in racket weight. The wrapping foam layer 13 can be made of EVA foam, polyurethane foam (EPU), polystyrene foam (EPS), polyethylene foam (EPE), polypropylene foam (EPP), polyvinyl chloride foam (EPVC), phenolic foam (EP), silicone foam (ESi), or bio-based foam (EBB), etc.

[0034] In some embodiments, the edge-sealing foam layer 13 includes a first edge-sealing foam layer 131, a second carbon fiber prepreg 132, a second edge-sealing foam layer 133, and a third carbon fiber prepreg 134 arranged from the inside out. The first edge-sealing foam layer and / or the second edge-sealing foam layer are made of fiber-reinforced epoxy foam film. The fiber-reinforced epoxy foam film is a composite material made by adding fiber materials to epoxy foam, such as the EEC series epoxy foam core material K812 or K680 from Huizhou Zhicheng New Material Technology Co., Ltd.

[0035] In this embodiment, both the first edge-wrapping foam layer 131 and the second edge-wrapping foam layer 133 can be made of fiber-reinforced epoxy foam film, or either the first edge-wrapping foam layer 131 or the second edge-wrapping foam layer 133 can be made of fiber-reinforced epoxy foam film, with the other layer made of EVA foam material or other foam materials. This embodiment uses a double-layer edge-wrapping foam layer to more quickly absorb the energy diffused outward from the honeycomb layer 11 during impact, further improving the sound absorption and vibration damping effect of the Peak racket; simultaneously, the use of a second carbon fiber prepreg fabric 132 as an isolation layer can improve the structural strength of the edge-wrapping layer.

[0036] Optionally, the foaming density of the fiber-reinforced epoxy foam sheet is 0.036 g / cm 3 ~0.09 g / cm 3 In order to reduce the weight of the racket part by using low-density foaming material, the low-density material has better waterproof and wear-resistant characteristics than the ultra-low-density material, which meets the demand for material performance in the application scene of the edge-wrapped part.

[0037] In some embodiments, as Figure 4 As shown in the figure, the racket 2 includes a connecting rod 21 and a handle 22, the connecting rod 21 is fixedly connected with the honeycomb layer 11, and the handle 22 is wrapped on the connecting rod.

[0038] In the embodiment, the connecting rod 21 can be a honeycomb structure and is integrally formed with the honeycomb layer 11. The handle 22 is made of foaming shock-absorbing material, such as polyurethane foam (EPU) material, polystyrene foam (EPS) material, polyethylene foam (EPE) material, polypropylene foam (EPP) material, polyvinyl chloride foam (EPVC) material, phenolic foam (EP) material, silicone foam (ESi) material, or bio-based foam (EBB) material, etc.

[0039] In some embodiments, the handle 22 is made of fiber-reinforced epoxy foaming material, and the fiber-reinforced epoxy foaming sheet is a composite of epoxy foaming material and fiber material, such as EEC series epoxy foaming core material K119, K102, K103, or K127 of Huizhou Zhicheng New Material Technology Co., Ltd.

[0040] Optionally, the foaming density of the fiber-reinforced epoxy foaming material is 0.14 g / cm 3 ~0.35g / cm 3 In order to reduce the weight of the racket part by using low-density foaming material, the low-density material has better waterproof and wear-resistant characteristics than the ultra-low-density material, which meets the demand for material performance in the application scene of the edge-wrapped part.

[0041] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0042] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A badminton racket with sound absorption and shock absorption effects, characterized in that, The racket and the bat are fixedly connected; the racket comprises a honeycomb layer and panel layers symmetrically distributed on two sides of the honeycomb layer; the panel layers are sequentially stacked from inside to outside by an epoxy adhesive layer, a first glass fiber felt, a porous elastic foaming layer, a second glass fiber felt and a first carbon fiber prepreg.

2. The racket with sound-absorbing and shock-reducing effects according to claim 1, wherein The porous elastic foaming layer is made of epoxy foaming shock-absorbing sheets.

3. The racket according to claim 2, wherein The foaming density of the epoxy foaming shock-absorbing sheet is 0.015 g / cm 3 0.06 g / cm 3 .

4. The racket having sound absorbing and shock absorbing effects according to claim 1, wherein The thickness of the porous elastic foaming layer is 0.3mm-1.0mm.

5. The racket having sound absorbing and shock absorbing effects according to claim 1, wherein The racket further comprises a foaming edge layer, which is wrapped on the side edges of the honeycomb layer and fixedly connected with the panel layers.

6. The racket having sound absorbing and shock absorbing effects according to claim 5, wherein The foaming edge layer comprises a first foaming edge layer, a second carbon fiber prepreg, a second foaming edge layer and a third carbon fiber prepreg arranged from inside to outside; the first foaming edge layer and / or the second foaming edge layer is made of fiber-reinforced epoxy foaming sheets.

7. The racket according to claim 6, wherein the sound absorbing and damping layer is made of a material having a sound absorption coefficient of 0.5 or more at a frequency of 500 Hz. The foaming density of the fiber reinforced epoxy foam sheet is 0.036 g / cm 3 0.09 g / cm 3 .

8. The racket having sound absorbing and shock absorbing effects according to claim 1, wherein The bat comprises a connecting rod and a handle; the connecting rod is fixedly connected with the honeycomb layer; and the handle is wrapped on the connecting rod.

9. The racket having sound absorbing and shock absorbing effects according to claim 8, wherein The outer layer of the handle is made of fiber-reinforced epoxy foaming pellets.

10. The racket having sound absorbing and shock absorbing effects according to claim 9, wherein The foamed density of the fiber reinforced epoxy foamed compact is 0.14 g / cm 3 0.35 g / cm 3 .

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