CN218085871U

CN218085871U - Bicycle rocking arm connection structure

Info

Publication number: CN218085871U
Application number: CN202221372093.7U
Authority: CN
Inventors: 刘鹏军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-03
Filing date: 2022-06-03
Publication date: 2022-12-20
Anticipated expiration: 2032-06-03

Abstract

A bicycle tumbler linkage structure, including tumbler, strutting piece, link, characterized by that the link is the open annular structure; the shaft of the connecting piece passes through the rotating arm and the shaft hole of the supporting piece; the connecting piece is arranged at the outer side of the rotating arm and the supporting piece, and two axial directions of the connecting piece are bent inwards.

Description

Bicycle rocking arm connection structure

Technical Field

A rotary arm connecting structure of a bicycle, in particular to a rotary arm connecting structure of a bicycle, a moped and a model.

Background

When the rotating arm of an interesting bicycle or an intelligent bicycle is folded or unfolded relative to the cross beam, a reliable connecting structure of the supporting piece and the rotating arm is needed, and when a battery or other structures are arranged in the rotating arm, a shaft directly penetrates through the rotating arm to easily interfere with the internal structure.

SUMMERY OF THE UTILITY MODEL

A connecting structure of a rotating arm of a bicycle comprises a rotating arm, a supporting piece and a connecting piece, wherein the supporting piece is connected with the rotating arm, and a shaft of the connecting piece passes through the rotating arm and a shaft hole of the supporting piece; the rotating arm is arranged between the bifurcate structures of the supporting part, and the shaft of the connecting piece is inserted into the shaft holes on the bifurcate structures and the rotating arm from the outer sides of the bifurcate structures on the two sides of the supporting part. Convenient dismantlement avoids the axle to pass the rocking arm, influences rocking arm inner structure, avoids increasing the axle sleeve and increases rocking arm and support piece's thickness.

The connecting piece has the advantages that the included angle between the connecting column of the connecting piece and the shaft is more than or equal to 90 degrees.

The connecting piece has the advantages that the two axial directions of the connecting piece are bent inwards to form arc-shaped or square-shaped buckles.

The advantage of this is that the ends of the two branches of the support are parallel, so that the support and the arm do not interfere with each other during the relative rotational movement.

The connecting piece has the advantages that the shaft of the connecting piece and the main body of the connecting piece are formed by combining a split structure, the connecting piece is formed by combining a flat bending piece and the shaft, and the shaft penetrates through a hole in a connecting column of the bending piece. If the connecting column on both sides of the connecting piece is provided with a screw hole and is matched with a shaft or a screw with threads, the connecting piece is convenient to repeatedly and conveniently disassemble and assemble.

The length C of the supporting piece is larger than half of the length of the rotating arm, and when the rotating arm is vertical to the cross beam, the distance A from the connecting point of the supporting piece and the rotating wheel to the intersection point d of the extension line of the rotating arm and the distance B from the shaft hole of the rotating arm to the intersection point d meet the Pythagorean theorem that the square of A plus the square of B is equal to the square of C. The length from the tumbler shaft hole to the tumbler end is more than one fifth of the tumbler length and less than one half of the tumbler length. When the rotating arm is folded, the moving range of the rotating wheel can not exceed the rotating arm.

Drawings

FIG. 1 is a swivel arm attachment structure for a bicycle.

FIG. 2 is a swivel arm attachment for a bicycle.

Figure 3 shows a square connector.

Fig. 4 shows a split connector.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Embodiment 1, fig. 1 is a swivel arm connecting structure for a bicycle, including a swivel arm 200, a support member 100, and a connecting member 300, the support member 100 being connected to the swivel arm 200, a plurality of the swivel arms 200 being wound around a cross member of the bicycle frame, ends of two branched structures of the support member 100 being parallel, two branched structures of the support member 100 being on both sides of the swivel arm 200, the swivel arm 200 being between the branched structures of the support member 100, and an axis of the connecting member 300 being inserted into axis holes on the branched structures and on the swivel arm 200 from outside the branched structures on both sides of the support member 100. As shown in FIG. 2, the shaft 301 of the connecting member 300 passes through the shaft holes of the rotating arm 200 and the supporting member 100, the connecting member 300 is a semi-open arc-shaped snap structure, and two shafts of the connecting member are bent inward to form an open ring structure. The connecting member 300 is connected to the outer sides of both sides of the supporting member 100 to connect the supporting member and the shaft hole of the pivot arm from the outside to the inside. The angle between the connecting column 302 and the shaft 301 of the connecting member 300 is greater than or equal to 90, and the end part of the supporting member 100 connected with the rotating arm 200 is arc-shaped. The length C of the support member 100 is greater than half of the length of the pivot arm 200, and when the pivot arm 200 is perpendicular to the cross beam, the distance a from the connection point of the support member 100 and the runner 400 to the intersection point d of the extension line of the pivot arm 200 and the distance B from the shaft hole of the pivot arm 200 to the intersection point d satisfy the pythagorean theorem that the square of a plus the square of B is equal to the square of C.

In a specific implementation, as shown in fig. 3, the bending of the connecting member may be square.

In a specific implementation, as the connecting member 300 shown in fig. 4 is used, two connecting columns 302 are arranged on the outer sides of the rotating arm 200 and the supporting member 100, and a threaded shaft 301 is installed from the outside to the inside, the shaft 301 is tightly fitted with a threaded hole 303 on the connecting column 302, the shaft 301 passes through slightly larger holes on the supporting member 100 and the rotating arm 200, the shaft 301 is rotatably connected with the holes on the supporting member 100 and the rotating arm 200, and the amount of the shaft 301 extending into the rotating arm 200 can pass through the wall of the pipe or stop in the wall of the pipe according to the wall thickness.

Claims

1. A connecting structure of a rotating arm of a bicycle comprises a rotating arm, a supporting piece and a connecting piece, wherein the supporting piece is connected with the rotating arm, and a shaft of the connecting piece passes through the rotating arm and a shaft hole of the supporting piece; the rotary arm is arranged between the branched structures of the supporting piece, and the shaft of the connecting piece is inserted into the shaft holes on the branched structures and the rotary arm from the outer sides of the branched structures on the two sides of the supporting piece.

2. A swivel arm attachment structure for a bicycle according to claim 1, wherein an included angle between the attachment post of the attachment member and the shaft is 90 degrees or more.

3. A swivel arm attachment arrangement for a bicycle according to claim 1, wherein the connecting member is two snap-fit members bent axially inwardly to form an arc or square.

4. A bicycle swivel arm attachment arrangement according to claim 1, wherein the ends of the two branches of the support member are parallel.

5. A bicycle tumbler attachment structure according to claim 4, wherein the two bifurcated structures of the support member are on opposite sides of the tumbler.

6. A swivel arm joint assembly for a bicycle according to claim 1, wherein the length C of the support member is greater than half of the length of the swivel arm, and when the swivel arm is perpendicular to the cross member, the distance a from the point of attachment of the support member to the wheel to the intersection point d of the extension line of the swivel arm and the distance B from the pivot hole of the swivel arm to the intersection point d satisfy the pythagorean theorem that the square of a plus the square of B equals the square of C.

7. The swivel arm attachment structure for a bicycle according to claim 6, wherein the length of the swivel arm axis hole to the end of the swivel arm is more than one fifth of the length of the swivel arm and less than one half of the length of the swivel arm.

8. A swivel arm connecting structure for a bicycle according to claim 1, wherein the shaft of the connecting member is combined with the main body of the connecting member in a split structure.

9. A swivel arm attachment arrangement for a bicycle according to claim 1, wherein the connecting member is formed by a combination of a flat bent member and a shaft, the shaft passing through a hole in the connecting post of the bent member.