CN216034875U

CN216034875U - Bicycle frame structure

Info

Publication number: CN216034875U
Application number: CN202122667980.9U
Authority: CN
Inventors: 汪旭东
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-15
Anticipated expiration: 2031-11-03

Abstract

The utility model belongs to the technical field of bicycles, and particularly relates to a bicycle frame structure which comprises a rotating shaft tube, an upper support, a cross beam, a lower support and a rear support, wherein the upper support, the cross beam, the lower support and the rear support are formed by a left tubular support and a right tubular support which are identical in shape, the left tubular support and the right tubular support are formed to be beneficial to the stability of the whole support, objects can be fixed under the upper support, the cross beam can also be used for placing objects, and the assembled bicycle can be provided with the objects at the rear end of the upper support.

Description

Bicycle frame structure

Technical Field

The utility model belongs to the technical field of bicycles, and particularly relates to a bicycle frame structure.

Background

The bicycle is a traditional tool for riding instead of walk, and the electric vehicle slowly becomes the mainstream along with the change of living demands, but the energy for running the bicycle is popular to people no matter what the energy is, for example, the bicycle can exercise the body and maintain the health; the electric vehicle can provide convenience for people with tired riding, and the electric vehicle can bear certain articles more or less when riding. Most bicycles currently available on the market are of a horizontal bar design, which limits the weight of the load bearing items and affects the stable and safe driving of the bicycle.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the horizontal bar bicycle carries the thing limitedly, and the bicycle is great because of the potential safety hazard that carries the thing and exist.

Therefore, the technical scheme adopted by the utility model is as follows: the bicycle frame structure comprises a rotating shaft tube, an upper support, a cross beam, a lower support and a rear support, wherein the upper support and the lower support are connected with the rotating shaft tube, the upper support, the cross beam, the lower support and the rear support are formed by two symmetrical left and right support brackets, the rotating shaft tube, the upper support, the lower support and the rear support are connected, and the cross beam is arranged between the upper support and the lower support.

Preferably, one end of the cross beam is connected with the upper bracket, and the other end of the cross beam is connected with the lower bracket.

Preferably, one end of the rear bracket is connected with the cross beam, and the other end of the rear bracket is connected with the lower bracket.

Preferably, the cross beam is in a shape of an oblique L.

Preferably, the two-part bracket of the upper bracket is in an integrally formed U shape.

Preferably, symmetrical mounting parts are arranged on the rear bracket or the lower bracket.

Preferably, the lower frame is provided with a connector with a horizontal through-going bore for connecting a drive assembly.

Preferably, the upper bracket and the cross beam are provided with ropes.

Preferably, the rotating shaft tube, the upper bracket, the cross beam, the lower bracket and the rear bracket are connected by welding.

The bicycle frame structure provided by the utility model has the following beneficial effects: the utility model provides a parallel bars (support) bicycle increases and carries the thing space, provides and stablizes the thing environment of carrying, reduces the risk coefficient who carries the thing bicycle.

Drawings

FIG. 1 is a structural view of a bicycle frame.

FIG. 2 is a use view of the bicycle frame.

In the figure: 1. a rotating shaft tube; 2. an upper bracket; 3. a cross beam; 4. a lower bracket; 5. a rear bracket; 6. a mounting member; 7. a connecting member.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in the drawings, the bicycle frame structure comprises a rotating shaft tube 1, an upper bracket 2, a cross beam 3, a lower bracket 4 and a rear bracket 5, wherein the upper bracket 2, the cross beam 3, the lower bracket 4 and the rear bracket 5 are respectively composed of two parts which are symmetrical left and right.

In the concrete operation, the one end of left and right upper bracket 2 links to each other with pivot pipe 1 welding, and the other end is connected, and the whole is integrated into one piece's U type design.

In the specific operation, the left and right lower brackets 4 are designed in a hook shape, and one end of each bracket is connected with the rotating shaft pipe in a welding way.

In the concrete operation, the left and right beams 3 are in an inclined L-shaped design, one end of each beam is connected with the lower support 4, the other end of each beam is connected with the upper support 2, the two ends of each beam 3 are respectively connected with the left lower support 4 and the left upper support 2, and the two ends of each beam 3 are respectively connected with the right lower support 4 and the right upper support 2.

In a specific operation, the left and right rear brackets 5 are connected at both ends to the left and right cross members 3 and the left and right lower brackets 4, respectively.

In a specific operation, the connection mode among the upper bracket 2, the cross beam 3, the lower bracket 4 and the rear bracket 5 is welding connection.

In a specific operation, the connection mode among the upper bracket 2, the cross beam 3, the lower bracket 4 and the rear bracket 5 can also be a screw connection.

In a specific operation, the left and right lower brackets 4 may be welded together in order to stabilize the bicycle, or the left and right lower brackets 4 may be fixedly connected by the brackets.

In the specific operation, a connecting piece 7 with a hole is arranged between the left lower bracket 4 and the right lower bracket 4, the hole penetrates in the left-right direction and is used for fixing a driving piece of the bicycle, and the driving piece is a combined component of a gear and a pedal.

In the specific operation, a faucet assembly is fixedly connected in the rotating shaft pipe 1, and a front wheel is fixed at the bottom of the faucet assembly.

In the concrete operation, the junction of the rear bracket and the lower bracket is provided with a mounting piece 6, and the mounting piece 6 is fixedly provided with a rear wheel.

In the specific operation, the gear of the rear wheel is connected with the gear of the driving piece through a chain, so that when the pedal is stepped on, the rear wheel is driven to advance, and then the front wheel is driven to advance.

In the specific operation, a saddle is fixedly installed between the upper brackets 4, and a seat or a carrier is arranged at the rear part of the saddle and is used for carrying goods when being used as the carrier.

In specific operation, the luggage carrier can bear a vehicular storage battery to supply power to the vehicle.

In the specific operation, the lower part of the upper bracket 4 can be loaded with goods and locked by a fixing rope, when the goods are too long, the goods can be inserted into and fixed from the lower part of the seat or the goods carrier, when the goods need to be taken out, the goods can be taken out from the lower part of the seat or the goods carrier, and the goods can be placed on the cross beam and locked by the rope.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Bicycle frame structure comprises pivot pipe, upper bracket, crossbeam, lower carriage and after-poppet, its characterized in that: the upper support and the lower support are connected with the rotating shaft pipe, the upper support, the cross beam, the lower support and the rear support are composed of two branch supports which are symmetrical left and right, the rotating shaft pipe, the upper support, the lower support and the rear support are connected, and the cross beam is arranged between the upper support and the lower support.

2. The bicycle frame structure of claim 1, wherein: one end of the cross beam is connected with the upper support, and the other end of the cross beam is connected with the lower support.

3. The bicycle frame structure of claim 1, wherein: one end of the rear support is connected with the cross beam, and the other end of the rear support is connected with the lower support.

4. The bicycle frame structure of claim 1, wherein: the beam is in an oblique L shape.

5. The bicycle frame structure of claim 1, wherein: the two parts of the upper bracket are integrally formed into a U shape.

6. The bicycle frame structure of claim 1, wherein: symmetrical mounting parts are arranged on the rear support or the lower support.

7. The bicycle frame structure of claim 1, wherein: the lower support is provided with a connecting piece with a horizontal through hole, and the through hole is used for connecting a driving assembly.

8. The bicycle frame structure of claim 1, wherein: and ropes are arranged on the upper bracket and the cross beam.

9. The bicycle frame structure of claim 1, wherein: the rotating shaft tube, the upper support, the cross beam, the lower support and the rear support are connected through welding.