CN217348092U

CN217348092U - Bicycle main beam pipe expansion frame

Info

Publication number: CN217348092U
Application number: CN202221329056.8U
Authority: CN
Inventors: 陈恳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-02
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a bicycle main beam pipe expansion frame, which comprises an upper bracket and a lower connecting piece, wherein the upper bracket is in a pi shape, the lower connecting piece is in a u shape, and the upper bracket and the lower connecting piece are respectively buckled from the upper side and the lower side of a main beam pipe and are fixedly connected through screws; the top of the upper bracket is provided with a bearing platform, the transverse width of the bearing platform is greater than the inner side distance of the two side wings, and the transverse width of the bearing platform is greater than that of the main beam pipe; the top of the bearing platform is provided with a plurality of reserved first mounting holes; the middle part of the side wing of the upper bracket is thinner than the foot part, the foot part is provided with a vertical threaded hole, the connecting parts at two sides of the lower connecting piece are respectively provided with a vertical through hole, and when the foot part of the upper bracket is buckled and butted with the connecting parts of the lower connecting piece, the threaded hole is matched with the through hole in position. This technical scheme easy dismounting, can not reduce frame intensity, satisfy multi-functional demand.

Description

Bicycle main beam pipe expansion frame

Technical Field

The utility model relates to a vehicle field, in particular to bicycle owner's beam tube extension frame.

Background

With the development of technology and the improvement of living standard of people, bicycles and electric bicycles are becoming popular day by day, playing more and more important role in daily life and traveling of people, and China has become the biggest light electric vehicle producing country, consumer country and export country all over the world. No matter a bicycle or an electric bicycle rider often needs to carry personal articles such as a kettle, a small bag and the like, a commonly adopted measure at present is to arrange a rear clothes rack for placing the articles, however, some vehicle types do not have the pre-installed rear clothes rack, and the rear clothes rack can be additionally installed if a user does need the rear clothes rack, so that high cost is brought, the position relation is inconvenient for the user to take the articles conveniently, and the articles placed on the rear clothes rack are lost once the bicycle is ridden and are also inconvenient for the user to perceive; in addition, it is also common practice to reserve two screw holes with a certain distance on the main beam pipe to facilitate the user to mount the water bottle cage, and then the water bottle cage can only hold some smaller articles, such as larger article bags, child seats and the like, which cannot be mounted, or cannot keep a certain stability during riding after being mounted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bicycle main beam pipe extension frame of easy dismounting, suitable multipurpose.

The utility model discloses a realize like this: a bicycle main beam pipe expansion frame comprises an upper bracket and a lower connecting piece, wherein the upper bracket is in a pi shape, the lower connecting piece is in a u shape, and the upper bracket and the lower connecting piece are respectively buckled from the upper side and the lower side of a main beam pipe and are fixedly connected through screws; the top of the upper bracket is provided with a bearing platform, the transverse width of the bearing platform is greater than the inner side distance of the two side wings, and the transverse width of the bearing platform is greater than that of the main beam pipe; the top of the bearing platform is provided with a plurality of reserved first mounting holes; the middle part of the side wing of the upper bracket is thinner than the foot part, the foot part is provided with a vertical threaded hole, the connecting parts at two sides of the lower connecting piece are respectively provided with a vertical through hole, and when the foot part of the upper bracket is buckled and butted with the connecting parts of the lower connecting piece, the threaded hole is matched with the through hole in position.

And a plurality of reserved second mounting holes are transversely formed in the two side faces of the bearing platform.

And the side surfaces of the connecting parts at the two sides of the lower connecting piece are respectively and transversely provided with a reserved third mounting hole.

The inner side of the bearing platform of the upper bracket and the inner sides of the two side wings form an arc-shaped surface, and the arc-shaped surface is matched with the outer contour of the main beam pipe.

The expansion frame is arranged on the main beam pipe at intervals between two groups, a goods frame is arranged on the upper side of the main beam pipe, and the goods frame is fixed through the first mounting hole or the second mounting hole.

The expansion frame is set up in the girder pipe for two interclass intervals, sets up the car package at girder pipe upside, and the car package is fixed through first mounting hole or second mounting hole.

The utility model discloses the inboard and both sides wing inboard of bearing platform of the upper bracket of bicycle main beam pipe extension frame form the arcwall face, the arcwall face is adapted with main beam outside of tubes profile, can guarantee the stability of riding after the installation, and the structure of this extension frame has slight elasticity simultaneously, can be suitable for installing in the main beam pipe that has certain difference; the upper bracket and the lower connecting piece of the expansion frame are both provided with reserved mounting holes which can be used for connecting and bearing different types of articles; in addition, two or more expansion frames can be used simultaneously, and application scenes are further expanded.

Drawings

FIG. 1 is a schematic perspective view of a main beam tube extension bracket of a bicycle of the present invention;

FIG. 2 is a front view of the main beam tube extension frame of the bicycle of the present invention;

FIG. 3 is a schematic view of the combination of the main beam pipe extension frame and the main beam pipe of the bicycle of the present invention;

FIG. 4 is a schematic view of a loading frame of the bicycle main beam tube expansion frame of the present invention;

fig. 5 is a schematic view of the loading bag of the bicycle main beam tube extension frame of the present invention.

Detailed Description

The main beam tube expansion frame of the bicycle of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the expansion frame for the main beam tube of the bicycle comprises an upper bracket 1 and a lower connecting piece 2, wherein the upper bracket is in a pi shape, the lower connecting piece is in a u shape, and the upper bracket and the lower connecting piece are respectively buckled from the upper side and the lower side of the main beam tube 4 and are fixedly connected through a screw 3; the top of the upper bracket is provided with a bearing platform 11, the transverse width of the bearing platform is greater than the inner side distance of the two side wings 12, and the transverse width of the bearing platform is greater than that of the main beam pipe; the top of the bearing platform is provided with a plurality of reserved first mounting holes 111; the flank middle part 121 of going up the bracket is thinner than foot 122, the foot is established the vertical aspect and is established vertical direction through-hole 1221 to screw hole 1221, and the both sides connecting portion 21 of lower antithetical couplet piece establishes vertical direction through-hole 211 respectively, and when the foot of going up the bracket and the connecting portion lock butt joint of lower antithetical couplet piece, screw hole and through-hole position phase-match.

For light purpose when keeping bicycle main beam pipe intensity, general main beam pipe is horizontal narrower and highly be greater than the transverse width, this has just led to being difficult to carry the article that articulate great size, and the transverse width of this main beam pipe's load-bearing platform 11 is greater than the transverse width of main beam pipe 4, has directly improved and has hung unstable problem.

A plurality of reserved second mounting holes 112 are transversely arranged on two side surfaces of the bearing platform. And the side surfaces of the connecting parts at the two sides of the lower connecting piece are respectively and transversely provided with a reserved third mounting hole 212. Different reserved mounting holes can meet different hanging requirements.

The inner side of the bearing platform of the upper bracket and the inner sides of the two side wings form an arc-shaped surface, and the arc-shaped surface is matched with the outer contour of the main beam pipe. For example, the expansion frame can be made into a plurality of models according to the pipe type and the size of the main beam, and each model can cover pipes with certain size difference.

As shown in fig. 4, the expansion frames are disposed at two intervals on the main beam pipe, and the goods shelf 5 is disposed on the upper side of the main beam pipe and fixed by the first mounting hole or the second mounting hole.

As shown in fig. 5, the expansion frames are arranged on the main beam pipe at intervals between two groups, the vehicle bag 6 is arranged on the upper side of the main beam pipe, and the vehicle bag is fixed through the first mounting hole or the second mounting hole.

The main beam pipe expansion frame can be widely applied to vehicles such as bicycles, folding bicycles, electric vehicles and the like, is convenient to install, and can meet the DIY requirements of users.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a bicycle main beam pipe extension frame, includes upper bracket (1) and lower antithetical couplet piece (2), its characterized in that:

the upper bracket is in a pi shape, the lower connecting piece is in a u shape, and the upper bracket and the lower connecting piece are respectively buckled from the upper side and the lower side of the main beam pipe (4) and fixedly connected through a screw (3);

the top of the upper bracket is provided with a bearing platform (11), the transverse width of the bearing platform is greater than the inner side distance of the two side wings (12), and the transverse width of the bearing platform is greater than that of the main beam pipe; the top of the bearing platform is provided with a plurality of reserved first mounting holes (111);

the flank middle part (121) of going up the bracket is thinner than foot (122), the foot is established perpendicular aspect and is established vertical direction through-hole (211) respectively to screw hole (1221), and the both sides connecting portion (21) of lower antithetical couplet piece, when going up the foot of bracket and the connecting portion lock butt joint of lower antithetical couplet piece, screw hole and through-hole position phase-match.

2. The bicycle main beam tube expansion bracket of claim 1, wherein: and a plurality of reserved second mounting holes (112) are transversely arranged on two side surfaces of the bearing platform.

3. The bicycle main beam tube expansion bracket of claim 1, wherein: and third mounting holes (212) are respectively and transversely reserved on the side surfaces of the connecting parts at the two sides of the lower connecting piece.

4. The bicycle main beam tube expansion bracket of claim 1, wherein: the inner side of the bearing platform of the upper bracket and the inner sides of the two side wings form an arc-shaped surface, and the arc-shaped surface is matched with the outer contour of the main beam pipe.

5. The bicycle main beam tube expansion bracket according to any one of claims 1 to 4, wherein: the expansion frame is arranged on the main beam pipe at intervals between two groups, a goods frame (5) is arranged on the upper side of the main beam pipe, and the goods frame is fixed through a first mounting hole or a second mounting hole.

6. The bicycle main beam tube expansion bracket according to any one of claims 1 to 4, wherein: the expansion frame is arranged on the main beam pipe at intervals between two groups, a vehicle bag (6) is arranged on the upper side of the main beam pipe, and the vehicle bag is fixed through a first mounting hole or a second mounting hole.