CN218967119U

CN218967119U - Novel bicycle crank assembly

Info

Publication number: CN218967119U
Application number: CN202223374948.2U
Authority: CN
Inventors: 耿春辉
Original assignee: Tianjin Haoxing Industry And Trade Co ltd
Current assignee: Tianjin Haoxing Industry And Trade Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-05
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a novel bicycle crank assembly, which relates to the field of bicycle cranks and comprises a first section of crank and a second section of crank, wherein the first section of crank comprises a first section of crank main body, a chute, a first fixing hole and a second fixing hole, one end of the first section of crank main body is provided with the chute, one end of the chute is provided with the first fixing hole, the other end of the chute is provided with the second fixing hole, and the other end of an extension piece is slidably connected in the chute.

Description

Novel bicycle crank assembly

Technical Field

The utility model relates to the field of bicycle cranks, in particular to a novel bicycle crank assembly.

Background

The crank is a bicycle accessory and a loose crank often makes a clicking sound. When the problem of the crank is checked, the crank is rotated to the horizontal position, the cranks on two sides are pressed downwards by force, and then the cranks are rotated for 180 degrees, and the same actions are repeated. If the crank is to rock, the crank fixing bolt should be tightened. The crank of a new bicycle is often subjected to such a check.

The existing bicycle crank can not be adjusted according to users with different heights, so that users with different heights are inconvenient to ride, the whole body is troublesome, and based on the situation, the utility model designs a novel bicycle crank assembly.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel bicycle crank assembly, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel bicycle crank subassembly, includes one section crank and two sections cranks, one section crank one end and two sections crank one end sliding connection, two sections cranks include two sections crank main part and extension piece, and two sections crank main part one end inner walls rotate with extension piece one end to be connected, and the extension piece is equipped with two sets of and symmetry setting at two sections crank main part one end inner walls.

As a further scheme of the utility model: the first section crank includes one section crank main part, spout, first fixed orifices and second fixed orifices, and the spout has been seted up to one section crank main part one end, and first fixed orifices has been seted up to spout one end, and the second fixed orifices has been seted up to the spout other end, extension piece other end sliding connection in the spout.

As a further scheme of the utility model: the extension piece includes extension piece main part, fixed joint, screw hole and rotation handle, and extension piece main part one end fixedly connected with fixed joint has offered the screw hole in the fixed joint, and extension piece main part other end fixedly connected with rotation handle.

As a further scheme of the utility model: the first groove is formed in one end of the first section of crank, the second groove is formed in one end of the second section of crank, the first groove is fixedly connected with one end of the supporting spring, and the other end of the supporting spring is fixedly connected with the second groove.

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

this novel bicycle crank subassembly, including one section crank and two sections cranks, one section crank one end and two sections crank one end sliding connection, two sections cranks include two sections crank main part and extension piece, two sections crank main part one end inner wall and extension piece one end rotation are connected, the extension piece is equipped with two sets of and symmetry setting at two sections crank main part one end inner walls, current bicycle crank can't be adjusted according to the user of different heights, it is comparatively inconvenient when riding to lead to the user of different heights, whole comparatively troublesome, and this crank divide into one section crank and two sections cranks, the user of different heights has been fine matched in the design of stretchable.

Drawings

FIG. 1 is a side elevational view of a bicycle crank assembly in accordance with the present utility model;

FIG. 2 is a side elevational view of a bicycle crank assembly in accordance with the present utility model;

FIG. 3 is a side cross-sectional view of the bicycle crank assembly of the present utility model;

FIG. 4 is a schematic view of a bicycle crank assembly extender of the present utility model.

As shown in the figure: 1. a section of crank; 2. a two-stage crank; 3. a section of crank body; 4. a chute; 5. a first fixing hole; 6. a two-stage crank body; 7. an extension; 8. a support spring; 9. an extension body; 10. fixing the joint; 11. a threaded hole; 12. rotating the handle; 13. and a second fixing hole.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 4, in the embodiment of the utility model, a novel bicycle crank assembly comprises a first section of crank 1 and a second section of crank 2, one end of the first section of crank 1 is slidably connected with one end of the second section of crank 2, the second section of crank 2 comprises a second section of crank main body 6 and an extension piece 7, one end inner wall of the second section of crank main body 6 is rotatably connected with one end of the extension piece 7, the extension piece 7 is provided with two groups and is symmetrically arranged on one end inner wall of the second section of crank main body 6, the existing bicycle crank cannot be adjusted according to users with different heights, so that users with different heights are inconvenient to ride, the whole is troublesome, and the crank is divided into the first section of crank 1 and the second section of crank 2, and the stretchable design well matches users with different heights.

The one section crank 1 includes one section crank main part 3, spout 4, first fixed orifices 5 and second fixed orifices 13, and spout 4 has been seted up to one end of one section crank main part 3, and first fixed orifices 5 have been seted up to spout 4 one end, and second fixed orifices 13 have been seted up to the spout 4 other end, and extension 7 other end sliding connection is in spout 4, extension 7 includes extension main part 9, fixed joint 10, screw hole 11 and rotation handle 12, and fixed joint 10 is fixedly connected with to extension main part 9 one end, has seted up screw hole 11 in the fixed joint 10, and extension main part 9 other end fixedly connected with rotates handle 12, and during normal use, extension 7 passes through the bolt fastening in first fixed orifices 5 and screw hole 11 department (see fig. 1), and when needs the adjustment, can unscrew the bolt, outwards stretches second section crank 2 to adjust extension 7 to the other end of spout 4 through rotating handle 12, screw in screw hole 11 and second fixed orifices 13 with the bolt, the whole length of crank is the whole length grow, is fit for higher user of height to ride this moment.

The first recess has been seted up to one end of one section crank 1, and the second recess has been seted up to two sections crank 2 one end, and first recess and support spring 8 one end fixed connection, support spring 8 other end and second recess fixed connection, the use of support spring 8 has played firm effect, has certain cushioning properties.

Claims

1. The utility model provides a novel bicycle crank subassembly, includes one section crank (1) and two sections crank (2), its characterized in that: one end of the first section crank (1) is in sliding connection with one end of the second section crank (2), the second section crank (2) comprises a second section crank main body (6) and an extension piece (7), one end inner wall of the second section crank main body (6) is rotationally connected with one end of the extension piece (7), and the extension piece (7) is provided with two groups and symmetrically arranged on one end inner wall of the second section crank main body (6).

2. A novel bicycle crank assembly according to claim 1, wherein: the one-section crank (1) comprises a one-section crank main body (3), a sliding groove (4), a first fixing hole (5) and a second fixing hole (13), wherein the sliding groove (4) is formed in one end of the one-section crank main body (3), the first fixing hole (5) is formed in one end of the sliding groove (4), the second fixing hole (13) is formed in the other end of the sliding groove (4), and the other end of the extension piece (7) is slidably connected in the sliding groove (4).

3. A novel bicycle crank assembly according to claim 1, wherein: the extension piece (7) comprises an extension piece main body (9), a fixed joint (10), a threaded hole (11) and a rotating handle (12), wherein the fixed joint (10) is fixedly connected to one end of the extension piece main body (9), the threaded hole (11) is formed in the fixed joint (10), and the rotating handle (12) is fixedly connected to the other end of the extension piece main body (9).

4. A novel bicycle crank assembly according to claim 1, wherein: the first groove is formed in one end of the first section of crank (1), the second groove is formed in one end of the second section of crank (2), the first groove is fixedly connected with one end of the supporting spring (8), and the other end of the supporting spring (8) is fixedly connected with the second groove.