CN212662626U

CN212662626U - Handle of badminton racket

Info

Publication number: CN212662626U
Application number: CN202020313328.XU
Authority: CN
Inventors: 何亮; 刘栋材
Original assignee: Dongguan Boen Carbon Fiber Products Technology Co ltd
Current assignee: Dongguan Boen Carbon Fiber Products Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-03-09
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a badminton racket handle, the grab handle includes toper metallic glass circle (1), grab handle body (3), wherein toper metallic glass circle (1) suit is in on the toper position of grab handle body (3), grab handle body (3) include handle core (31), grab handle shell (32), wherein wrap up even number layer's carbon fiber prepreg cloth (5) on the outer wall of handle core (31), and two adjacent carbon fiber prepreg cloth (5) are arranged in an alternating manner, the layer angle of carbon fiber prepreg cloth (5) and racket pole (7) is 45 or-45; a plurality of amorphous strips (6) in a circular array are arranged on the handle core (31) and are attached to the outer surface of the carbon fiber prepreg cloth (5), and the layering angle of the amorphous strips (6) and the racket rod (7) is 0 degree; the utility model provides a modulus height, rigidity big, produce brittle fracture, the poor technical problem of travelling comfort easily when receiving impact in the twinkling of an eye.

Description

Handle of badminton racket

Technical Field

The utility model relates to a badminton racket handle.

Background

Badminton is a very popular sports item in China and has very large market capacity. In recent years, with the increasing attention of the country to the carbon fiber industry, a large amount of funds enter the carbon fiber industry, which objectively promotes the price level of carbon fiber raw materials to be gradually reasonable, so that the carbon fiber raw materials are widely applied to the civil field. Meanwhile, the carbon fiber has the performance characteristics of high strength, high modulus, low density and the like, and is a light-weight optimal material for products. Therefore, the current badminton racket basically adopts carbon fiber as a raw material, so that the stay wire tension bearing capacity, the hitting speed and the like of the racket are obviously improved, particularly the weight of the racket is greatly reduced, and the racket obtains better flexibility.

However, the handle of the current badminton racket is mostly made of light wood such as paulownia, poplar and the like, and has the advantages of low cost, convenience in processing and the like. However, the light wood is limited to natural materials, the density of the light wood is approximately concentrated in the range of 0.3-0.5 g/cm3, the density distribution is uniform, and after the conditions of strength requirement, process requirement and the like are combined, the single weight of the current light wood grab handle is basically maintained at 17-23 g, and the breakthrough in weight is difficult to obtain.

With the continuous progress of badminton, the requirement of light weight is further put forward on the weight of the racket. Patent CN205268959U provides a lightweight racket design, and it has used carbon fiber as support frame, packs low density material in, further reduced the weight of racket grab handle. However, in the design scheme, the grab handle is bonded with the racket middle tube inserted into the racket through glue, and the modulus of the carbon fiber exceeds 250GPa, so that the overall rigidity of the racket is too high during batting, and on one hand, impact is formed on the wrist of a player, and the hand feeling is influenced; on the other hand, carbon fibers have high modulus and high rigidity, and therefore are likely to be brittle when subjected to an instantaneous impact.

In addition, both the traditional wooden grab handle and the current new grab handle basically only have the functions of connection and support, and the specific deformation working condition of the badminton racket in the actual batting process is not considered, namely, the design basically does not consider the functions of batting speed, force transmission effect, batting comfort and the like of the grab handle on the badminton racket.

The amorphous alloy is a new material with a unique microstructure with long-range disorder and short-range order, the tensile strength of the amorphous alloy is 4-8 times that of the traditional metal, and can reach 1800-4000MPa, and the elastic modulus of the amorphous alloy is only about 70-80 GPa; more importantly, the elastic energy storage (elastic specific work) of the material exceeds 2.3X 107J/m3, the elastic limit can reach 2 percent, and the fracture toughness exceeds 50MPa.m1/2, so that the material has excellent elasticity and toughness. Besides, the amorphous strips have the special properties of very good fatigue resistance and insensitivity to stress-induced notching. These performance characteristics make amorphous ribbon the best choice for modified carbon fiber composite materials.

SUMMERY OF THE UTILITY MODEL

The utility model provides a badminton racket handle, which solves the technical problems of high modulus, high rigidity, easy brittle fracture generation when receiving instantaneous impact and poor comfort.

In order to solve the technical problem, the utility model provides a following technical scheme:

a badminton racket handle comprises a conical amorphous alloy ring (1) and a handle body (3), wherein the conical amorphous alloy ring (1) is sleeved on the conical position of the handle body (3), the handle body (3) comprises a handle core (31) and a handle shell (32), an even number of layers of carbon fiber prepreg cloth (5) are wrapped on the outer wall of the handle core (31), two adjacent carbon fiber prepreg cloth (5) are arranged in an alternating mode, and the layer laying angle between the carbon fiber prepreg cloth (5) and a racket rod (7) is 45 degrees or-45 degrees; a plurality of amorphous strips (6) in a circular array are arranged on the handle core (31) and are attached to the outer surface of the carbon fiber prepreg cloth (5), and the layering angle of the amorphous strips (6) and the racket rod (7) is 0 degree; the carbon fiber prepreg (5) and the amorphous strip (6) are arranged between the handle core (31) and the handle shell (32), and the handle shell (32) is wrapped on the handle core (31).

Preferably, the conical amorphous alloy ring (1) is in interference fit with the handle body (3).

Preferably, a layer of epoxy resin is coated on the inner wall of the conical amorphous alloy ring (1).

Preferably, the amorphous strips (6) are coated with a layer of epoxy resin.

Preferably, the stem (31) is made of a foamed material.

Preferably, the foaming material comprises EVA and PU materials.

Preferably, the handle core (31) is provided with a mounting hole, a first magnetic plate (8) is fixedly mounted in the mounting hole, the first magnetic plate (8) adsorbs a second magnetic plate (9) through magnetic force, the second magnetic plate (9) is fixedly mounted on the racket rod (7), and the racket rod (7) sequentially penetrates through the handle body (3) and the conical amorphous alloy ring (1) and is mounted on the racket frame.

Preferably, one end of the handle core (31) is provided with a trapezoidal block (4), and the trapezoidal block (4) and the conical amorphous alloy ring (1) are not arranged at the same end of the handle core (31); trapezoidal piece (4) with handle core (31) integrated into one piece, be provided with on trapezoidal piece (4) and clap the pole hole, clap the pole hole with the mounting hole is connected the same.

Preferably, the grab handle further comprises a plurality of handle belts (2) which are wrapped on the outer wall of the grab handle shell (32) and are arranged in an arithmetic progression, and the handle belts (2) are made of polyester fiber blending.

The utility model discloses the beneficial effect who reaches is:

the carbon fiber prepreg cloth of the utility model adopts a layer angle of 45 degrees or minus 45 degrees with the racket rod, which can effectively reduce the too high rigidity of the racket caused by the too high carbon fiber modulus, reduce the counter impact to players due to the too high rigidity, reduce sports injury and improve the hand feeling of the racket matched with the handle; the utility model adopts the amorphous strip to adopt the 0-degree spreading design parallel to the bat rod, can effectively improve the impact resistance of the handle to bending deformation caused by batting, can reduce the risk of instantaneous brittle fracture, and can improve the batting rebound performance; the utility model discloses a toper metallic glass circle reduces grab handle stress cracking's risk by a wide margin, promotes its life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of a carbon fiber prepreg according to the present invention;

FIG. 4 is a schematic view of the amorphous ribbon structure of the present invention;

fig. 5 is a partial cross-sectional view of the present invention;

fig. 6 is an enlarged view of a portion a of fig. 5.

The handle comprises a conical amorphous alloy ring (1), a handle belt (2), a handle body (3), a handle core (31), a handle shell (32), a trapezoidal block (4), carbon fiber prepreg cloth (5), an amorphous strip (6), a racket rod (7), a first magnetic plate (8) and a second magnetic plate (9).

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 4, a badminton racket handle, the handle includes toper metallic glass circle (1), handle body (3), wherein toper metallic glass circle (1) suit is in on the toper position of handle body (3), toper metallic glass circle (1) with the cooperation of handle body (3) is interference fit, paint one deck epoxy on the inner wall of toper metallic glass circle (1). The grab handle body (3) comprises a handle core (31) and a grab handle shell (32), wherein two layers of carbon fiber prepreg (5) are wrapped on the outer wall of the handle core (31), the layer spreading angle between the first layer of carbon fiber prepreg (5) and the racket rod (7) is 45 degrees, the layer spreading angle between the second layer of carbon fiber prepreg (5) and the racket rod (7) is-45 degrees, and the first layer of carbon fiber prepreg (5) and the second layer of carbon fiber prepreg (5) are alternately arranged to realize the symmetry of mechanical properties. The handle core (31) is provided with a plurality of amorphous strips (6) in a circular array and is attached to the outer surface of the carbon fiber prepreg cloth (5), the layering angle between the amorphous strips (6) and the racket rod (7) is 0 degree, and a layer of epoxy resin is coated on the amorphous strips (6). Carbon fiber preimpregnation cloth (5) with amorphous strip (6) set up handle core (31) with between grab handle shell (32), grab handle shell (32) parcel is on handle core (31), handle core (31) are made by expanded material, in this embodiment, EVA is chooseed for use to expanded material, and PU material is chooseed for use to expanded material in other embodiments.

The utility model discloses a carbon fiber prepreg cloth is 45 or-45 with the shop layer angle of racket pole, and 45 carbon fiber prepreg cloth has compromise the bending resistance of grab handle and just antitorque performance to can effectively reduce the too high racket rigidity that leads to of carbon fiber modulus. The layer angle between the amorphous strips and the racket rod is 0 degree, the amorphous strips in the 0 degree direction mainly utilize the tensile strength of the amorphous strips to provide bending resistance for the handle, and the amorphous strips in the 0 degree direction with the racket rod are the main bearing carrier of the bending moment force of the handle. When the handle is bent and deformed due to hitting, the amorphous ribbon is rapidly stretched and deformed by utilizing the unique mechanical properties of moderate modulus, high tensile strength and ultrahigh elastic energy storage of the amorphous ribbon, and after the amorphous ribbon is deformed to a certain degree and is balanced with the external hitting power, the elastic energy storage in the amorphous ribbon is rapidly released, so that the handle, the racket rod and the racket frame can be cooperated together to provide rebound force for hitting, and the rebound force of hitting can be further improved.

The utility model discloses utilize amorphous strip fracture toughness high, elasticity limit big, to the insensitive characteristics of stress breach, adopt 0 of being parallel with the bat pole to spread to the design, can effectively improve the grab handle because the batting needs and produce bending deformation's impact resistance ability, can also reduce its risk of brittle failure in the twinkling of an eye.

In addition, because be 0 with the bat pole and spread to the amorphous strip of design and born the most bending resistance of grab handle, consequently the utility model discloses can change carbon fiber prepreg cloth layer from usual 0 to 45, should change and can make the (21/2)/2 mechanical properties component that carbon fiber prepreg cloth laid the layer be used for the bending resistance of supplementary grab handle, another (21/2)/2 mechanical properties component is used for supplementary torsional properties who has compromise the grab handle, so can further perfect the comprehensive mechanical properties of racket, avoid it to receive unusual mechanical shock and the inefficacy that produces, promote fail safe nature. Meanwhile, the 45-degree layer of the carbon fiber prepreg cloth is only partial component in the 0-degree direction, and the high modulus of the carbon fiber is partially dispersed, so that the counter impact on players due to overlarge rigidity is reduced, the sports injury is reduced, and the hand feeling of the racket matched with the grab handle is improved.

Because grab handle and bat pole belong to the connected mode of back equipment, the high risk region of fracture is because the awl point region that bending deformation leads to the grab handle when the racket batts belongs to stress the most concentrated place, the utility model discloses a toper metallic ring, can make full use of amorphous strip fatigue-resistant, the insensitive good characteristic to the stress breach, reduce grab handle stress cracking's risk by a wide margin, promote its life.

In this embodiment, the thickness of amorphous strip is 30-50 microns, and the utility model discloses a thickness of toper metallic glass circle (1) is 1-2 millimeters, highly is 3-5 millimeters, and the weight that increases is very few overall, under the prerequisite that promotes its elasticity, performance such as life-span, can also effectively reduce invalid weight, promotes the nature controlled of racket.

In this embodiment, as shown in fig. 5 to 6, be provided with the mounting hole on the handle core (31), fixed mounting is first magnetic plate (8) in the mounting hole, second magnetic plate (9) is being adsorbed through magnetic force in first magnetic plate (8), second magnetic plate (9) fixed mounting is on clapper pole (7), clapper pole (7) pass in proper order grab handle body (3), toper metallic glass circle (1) to install on the frame of clapping, in this embodiment, the utility model discloses a first magnetic plate (8) and second magnetic plate (9), make the clapper pole can dismantle with the grab handle. One end of the handle core (31) is provided with a trapezoidal block (4), and the trapezoidal block (4) and the conical amorphous alloy ring (1) are not arranged at the same end of the handle core (31); trapezoidal piece (4) with handle core (31) integrated into one piece, be provided with on trapezoidal piece (4) and clap the pole hole, clap the pole hole with the mounting hole is connected the same, and wherein trapezoidal piece (4) prevent the utility model discloses take off the hand when using. The grab handle still includes a plurality of handle area (2), wraps up on the outer wall of grab handle shell (32) to be arranging of arithmetic progression, handle area (2) are the polyester fiber blending, and wherein handle area (2) increase the utility model discloses a frictional force and perspire nature.

It is noted that terms such as first and second are used herein only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A badminton racket handle is characterized in that: the grab handle comprises a conical amorphous alloy ring (1) and a grab handle body (3), wherein the conical amorphous alloy ring (1) is sleeved on the conical position of the grab handle body (3), the grab handle body (3) comprises a handle core (31) and a grab handle shell (32), wherein the outer wall of the handle core (31) is wrapped with an even number of layers of carbon fiber prepreg cloth (5), two adjacent carbon fiber prepreg cloth (5) are arranged in an alternating mode, and the layer laying angle between the carbon fiber prepreg cloth (5) and the racket rod (7) is 45 degrees or-45 degrees; a plurality of amorphous strips (6) in a circular array are arranged on the handle core (31) and are attached to the outer surface of the carbon fiber prepreg cloth (5), and the layering angle of the amorphous strips (6) and the racket rod (7) is 0 degree; the carbon fiber prepreg (5) and the amorphous strip (6) are arranged between the handle core (31) and the handle shell (32), and the handle shell (32) is wrapped on the handle core (31).

2. A badminton racket grip in accordance with claim 1, wherein: the conical amorphous alloy ring (1) is in interference fit with the grab handle body (3).

3. A badminton racket grip in accordance with claim 1, wherein: and a layer of epoxy resin is coated on the inner wall of the conical amorphous alloy ring (1).

4. A badminton racket grip in accordance with claim 1, wherein: and a layer of epoxy resin is coated on the amorphous strip (6).

5. A badminton racket grip in accordance with claim 1, wherein: the stem (31) is made of a foamed material.

6. A badminton racket grip in accordance with claim 5, wherein: the foaming material comprises EVA and PU materials.

7. A badminton racket grip in accordance with claim 1, wherein: the racket handle is characterized in that a mounting hole is formed in the handle core (31), a first magnetic plate (8) is fixedly mounted in the mounting hole, a second magnetic plate (9) is attracted to the first magnetic plate (8) through magnetic force, the second magnetic plate (9) is fixedly mounted on a racket rod (7), and the racket rod (7) sequentially penetrates through the handle body (3) and the conical amorphous alloy ring (1) and is mounted on a racket frame.

8. A badminton racket grip in accordance with claim 7, wherein: one end of the handle core (31) is provided with a trapezoidal block (4), and the trapezoidal block (4) and the conical amorphous alloy ring (1) are not arranged at the same end of the handle core (31); trapezoidal piece (4) with handle core (31) integrated into one piece, be provided with on trapezoidal piece (4) and clap the pole hole, clap the pole hole with the mounting hole is connected the same.

9. A badminton racket grip in accordance with claim 1, wherein: the grab handle also comprises a plurality of handle belts (2) which are wrapped on the outer wall of the grab handle shell (32) and are arranged in an arithmetic progression, and the handle belts (2) are blended by polyester fibers.