CN211611526U

CN211611526U - Middle pipe structure with built-in metal spring

Info

Publication number: CN211611526U
Application number: CN201921111398.0U
Authority: CN
Inventors: 徐建昇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-10-02
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses an it has well tubular construction of metal spring to embed, including the body, inlay the shaping in an at least tip of this body and be fixed with metal spring, this metal spring is along the axial extension of body. The metal spring is fixed in at least one end part of the pipe body in an embedding and forming mode, so that the elasticity of the middle pipe can be effectively enhanced, the product has strong rigidity and strong elasticity, and the product is favorably used.

Description

Middle pipe structure with built-in metal spring

Technical Field

The utility model relates to a racket tubular product field technique especially indicates a built-in carbon fiber well tubular construction who has metal spring.

Background

The badminton racket belongs to a sports apparatus with high explosive force, and is characterized in that: the material usage amount is small, the net pressure tension borne by the racket frame is high, and the deformation of the middle pipe is large during batting. The development of world-known brands in the field of high-performance badminton rackets is expected to make a breakthrough in production process and structural design so as to lead the market.

The structure of the badminton racket comprises a racket frame, a middle pipe and a handle, wherein the racket frame is connected to one end of the middle pipe, and the handle is connected to the other end of the middle pipe. The existing racket on the market has the following defects:

in general, carbon fiber and metal (e.g., titanium metal, aluminum alloy, pure iron, pure aluminum, etc.) are used as materials for badminton rackets. The carbon fiber racket is characterized by strong rigidity and poor elasticity; the metal racket is characterized by strong elasticity and poor rigidity, and the two materials have respective defects. How to combine the two materials reasonably, so that the racket combines the advantages of the two materials, is one of the problems to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a middle tube structure with a built-in metal spring, which has the advantages of strong rigidity and strong elasticity.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a middle pipe structure with a built-in metal spring comprises a pipe body, wherein the metal spring is fixed in at least one end part of the pipe body in an embedding forming mode and extends along the axial direction of the pipe body.

Preferably, the tube has an upper end portion for connecting to the racket frame and a lower end portion for connecting to the grip, and a through hole is formed through the upper end portion to the lower end portion, and the metal spring is located in the upper end portion.

Preferably, the upper end is a hollow structure.

Preferably, the metal spring is close to the outer wall of the tube body, and the wall thickness of each position of the tube body is the same.

Preferably, the inner wall of the upper end of the tube body integrally extends to the center to form a thickened ring, and the metal spring is fixed inside the thickened ring in an insert molding mode and is close to the center of the tube body.

Preferably, the upper end is a solid structure.

Preferably, the metal spring is close to the outer wall of the pipe body.

Preferably, the metal spring is located near the center of the tube.

As a preferred scheme, the pipe body is made of an integrated carbon fiber material.

As a preferred scheme, the pipe body comprises an inner layer and an outer layer wrapping the outer wall surface of the inner layer; the inner layer is made of foaming materials, the outer layer is made of carbon fibers, glass fibers or Kevlar fibers, and the metal spring is located inside the inner layer.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the metal spring is fixed in at least one end part of the pipe body in an embedding and forming mode, so that the elasticity of the middle pipe can be effectively enhanced, the product has strong rigidity and strong elasticity, and the product is favorably used.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a cross-sectional view of a first preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a second preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of a third preferred embodiment of the present invention;

fig. 4 is a sectional view of a fourth preferred embodiment of the present invention.

The attached drawings indicate the following:

10. pipe body 101, upper end portion

102. Lower end 103, through hole

11. Inner layer 12, outer layer

104. Thickening ring 20, metal spring.

Detailed Description

Referring to fig. 1, a detailed structure of a first preferred embodiment of the present invention is shown, which includes a tube 10.

At least one end of the tube 10 is fixed with a metal spring 20 by insert molding, and the metal spring 20 extends along the axial direction of the tube 10.

In this embodiment, the pipe body 10 is a circular pipe; the tube body 10 is provided with an upper end part 101 for connecting a racket frame and a lower end part 102 for connecting a handle, a through hole 103 penetrates from the upper end part 101 to the lower end part 102, the metal spring 20 is positioned in the upper end part 101, the metal spring 20 is close to the outer wall of the tube body 10, the upper end part 101 is of a hollow structure, and the wall thickness of each position of the tube body 10 is the same; the pipe body 10 comprises an inner layer 11 and an outer layer 12 covering the inner wall surface and the outer wall surface of the inner layer 11; the inner layer 11 is made of foam, the outer layer 12 is made of carbon fiber, glass fiber or kevlar fiber, and the metal spring 20 is located inside the inner layer 11, but the tube 10 may be made of an integral carbon fiber material, which is not limited.

The metal spring 20 is a hard metal, which may be titanium metal, for example. By arranging the metal spring 20 in the tube 10, the strong rigidity of the tube 10 and the strong elasticity of the metal spring 20 can be combined favorably, so that the racket combines the advantages of the two, and is convenient to use.

Referring to fig. 2, a specific structure of a second preferred embodiment of the present invention is shown, the specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:

in this embodiment, the upper end 101 is a solid structure, so that the product has stronger rigidity and strength, and the metal spring 20 is close to the outer wall of the pipe body 10.

Referring to fig. 3, a specific structure of a third preferred embodiment of the present invention is shown, the specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:

in this embodiment, a thickened ring 104 integrally extends from the inner wall of the upper end 101 of the tube 10 to the center, and the metal spring 20 is fixed inside the thickened ring 104 by insert molding and is close to the center of the tube 10; and, the tube 10 is made of an integrated carbon fiber material, not limited to the above.

Referring to fig. 4, a specific structure of a fourth preferred embodiment of the present invention is shown, the specific structure of this embodiment is basically the same as that of the second preferred embodiment, except that:

in this embodiment, the metal spring 20 is close to the center of the tube 10, and the tube 10 is made of an integrated carbon fiber material, which is not limited.

The utility model discloses a design focus lies in: the metal spring is fixed in at least one end part of the pipe body in an embedding and forming mode, so that the elasticity of the middle pipe can be effectively enhanced, the product has strong rigidity and strong elasticity, and the product is favorably used.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an it has well tubular construction of metal spring to embed, including the body, its characterized in that: at least one end of the tube body is internally fixed with a metal spring in an embedding and forming way, and the metal spring extends along the axial direction of the tube body.

2. The middle tube structure with a built-in metal spring according to claim 1, wherein: the pipe body is provided with an upper end part used for being connected with the racket frame and a lower end part used for being connected with the handle, a through hole penetrates from the upper end part to the lower end part, and the metal spring is positioned in the upper end part.

3. The middle tube structure with a built-in metal spring according to claim 2, wherein: the upper end part is of a hollow structure.

4. The middle tube structure with a built-in metal spring as set forth in claim 3, wherein: the metal spring is close to the outer wall of the pipe body, and the wall thickness of each position of the pipe body is the same.

5. The middle tube structure with a built-in metal spring as set forth in claim 3, wherein: the inner wall of the upper end part of the tube body integrally extends to the center to form a thickened ring, and the metal spring is embedded, molded and fixed at the inner part of the thickened ring and close to the center of the tube body.

6. The middle tube structure with a built-in metal spring according to claim 2, wherein: the upper end part is of a solid structure.

7. The middle tube structure with a built-in metal spring as set forth in claim 6, wherein: the metal spring is close to the outer wall of the pipe body.

8. The middle tube structure with a built-in metal spring as set forth in claim 6, wherein: the metal spring is close to the center of the pipe body.

9. The middle tube structure with a built-in metal spring according to claim 1, wherein: the pipe body is made of an integrated carbon fiber material.

10. The middle tube structure with a built-in metal spring according to claim 1, wherein: the pipe body comprises an inner layer and an outer layer wrapping the outer wall surface of the inner layer; the inner layer is made of foaming materials, the outer layer is made of carbon fibers, glass fibers or Kevlar fibers, and the metal spring is located inside the inner layer.