CN215285154U

CN215285154U - Novel crank for bicycle

Info

Publication number: CN215285154U
Application number: CN202121393104.5U
Authority: CN
Inventors: 袁志领
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-24
Anticipated expiration: 2031-06-22

Abstract

The utility model relates to the technical field of bicycles, in particular to a novel crank for a bicycle, which comprises a crank body, wherein the crank body comprises a crank core body and a crank outer rod, the crank core body is arranged inside the crank outer rod, a reinforcing rib is arranged on the crank core body along the length direction of the crank core body, the crank core body and the reinforcing rib are both made of metal materials and are integrally formed, the crank outer rod is made of PA materials, the crank outer rod is coated on the outer wall of the crank core body, the crank outer rod and the crank core body are integrally formed by injection molding, and the reinforcing rib is arranged in the middle of the crank core body made of metal materials, thereby increasing the bearing capacity of the crank body, further being larger than common force after integral forming, having high durability and light weight and meeting the lightening requirement of the quality of the whole bicycle equipment of the household standard, and the cost consumption is reduced, so that the service performance is stronger, and the method is more suitable for large-scale popularization and use.

Description

Novel crank for bicycle

Technical Field

The utility model relates to a bicycle technical field specifically is a novel crank for bicycle.

Background

The crank of the present bicycle has the following disadvantages: the steel is formed by hot forging, the appearance is rough, the cost is high, the steel is easy to break, and labor is wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel crank for bicycle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel crank for bicycle, includes the crank body, the crank body includes crank core and crank outer rod, the crank outer rod that the crank core set up is inside, be provided with the strengthening rib on the crank core and along the length direction of person crank core.

As the utility model discloses preferred scheme, the crank core all adopts metal material to make with the strengthening rib to be integrated into one piece, the outer pole of crank adopts the PA material to make and forms, the outer pole cladding of crank is at the outer wall of crank core to the outer pole of crank is through the integrated into one piece that moulds plastics with the crank core.

As the utility model discloses preferred scheme, the mounting hole has been seted up to the one end of crank outer rod, the connecting hole has been seted up to the other end of crank outer rod.

As the preferred proposal of the utility model, the inner mounting hole is arranged at one end of the crank core body, and the inner connecting hole is arranged at the other end of the crank core body.

As the preferred scheme of the utility model, interior mounting hole and mounting hole looks adaptation to the central point is on same straight line, interior connecting hole and connecting hole looks adaptation, and the central point is on same straight line.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, all adopt metal material to make with the strengthening rib through the design crank core, and be integrated into one piece, the crank outer pole adopts the PA material to make and forms, the cladding of crank outer pole is at the outer wall of crank core, and the crank outer pole is through the integrated into one piece that moulds plastics with the crank core for integrated into one piece sheet metal, and be equipped with the strengthening rib in the middle of the crank core that metal material made, thereby the bearing capacity that has increased the crank body is big, and then it is big than ordinary dynamics behind the integrated into one piece, the incorruptibility is high, light in weight, and accord with the light-weight requirement that the whole car of house standard equips the quality, the cost consumption is also reduced, therefore performance is stronger, more suitable using widely on a large scale.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic bottom view of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the overall explosion structure of the present invention;

fig. 4 is a schematic bottom view of the crank core shown in fig. 3 according to the present invention;

fig. 5 is a schematic cross-sectional view of fig. 1 according to the present invention.

In the figure: 1. a crank body; 2. a crank core; 3. a crank outer rod; 4. reinforcing ribs; 201. An inner mounting hole; 202. an inner connection hole; 301. mounting holes; 302. and connecting the holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of making the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, 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 belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a novel crank for bicycle, includes crank body 1, crank body 1 includes crank core 2 and crank outer rod 3, and inside crank outer rod 3 that crank core 2 set up, on the crank core 2 and along person crank core 2's length direction be provided with strengthening rib 4.

As the utility model discloses further preferred scheme, crank core 2 all adopts metal material to make with strengthening rib 4 to for integrated into one piece, the outer pole 3 of crank adopts the PA material to make and forms, and the outer pole 3 cladding of crank is at the outer wall of crank core 2, and the outer pole 3 of crank is through the integrated into one piece that moulds plastics with crank core 2.

As a further preferred scheme of the utility model, mounting hole 301 has been seted up to the one end of crank outer rod 3, and connecting hole 302 has been seted up to the other end of crank outer rod 3.

As a further preferred aspect of the present invention, the inner mounting hole 201 is opened at one end of the crank core 2, and the inner connecting hole 202 is opened at the other end of the crank core 2.

As the utility model discloses further preferred scheme, interior mounting hole 201 and mounting hole 301 looks adaptation to the central point is on same straight line, and interior connecting hole 202 and connecting hole 302 looks adaptation, and the central point is on same straight line.

The utility model discloses work flow: during the crank of this scheme of use, all adopt metal material to make at crank core 2 and strengthening rib 4, and be integrated into one piece, crank outer rod 3 adopts the PA material to make and forms, the cladding of crank outer rod 3 is at the outer wall of crank core 2, and crank outer rod 3 and crank core 2 are through moulding plastics integrated into one piece, and under the effect that is equipped with strengthening rib 4 in the middle of the crank core 2 that metal material made, thereby it is big to have increased crank body 1's bearing capacity, and then it is big than ordinary dynamics after the integrated into one piece, the incorruptibility is high, light in weight, and accord with the lightening requirement of the whole car equipment quality of domestic standard, the cost consumption has also been reduced, consequently performance is stronger, more suitable using widely on a large scale.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel crank for bicycle, includes crank body (1), its characterized in that: the crank body (1) comprises a crank core body (2) and a crank outer rod (3), wherein the crank core body (2) is arranged inside the crank outer rod (3), and reinforcing ribs (4) are arranged on the crank core body (2) and along the length direction of the crank core body (2).

2. The novel bicycle crank of claim 1, wherein: the crank core body (2) and the reinforcing ribs (4) are made of metal materials and are integrally formed, the crank outer rod (3) is made of PA materials, the crank outer rod (3) is coated on the outer wall of the crank core body (2), and the crank outer rod (3) and the crank core body (2) are integrally formed through injection molding.

3. The novel bicycle crank of claim 2, wherein: one end of the crank outer rod (3) is provided with a mounting hole (301), and the other end of the crank outer rod (3) is provided with a connecting hole (302).

4. The novel bicycle crank of claim 3, wherein: an inner mounting hole (201) is formed in one end of the crank core body (2), and an inner connecting hole (202) is formed in the other end of the crank core body (2).

5. The novel bicycle crank of claim 4, wherein: the inner mounting hole (201) is matched with the mounting hole (301) and the central point is on the same straight line, the inner connecting hole (202) is matched with the connecting hole (302) and the central point is on the same straight line.