Frame structure of a bicycle

Abstract

The utility model discloses a frame structure of bicycle, including mounting seat, the top fixed welding saddle support rod of mounting seat, the inner chamber of saddle support rod is inserted with seat plug -in rod, the top position fixed welding has crossbeam frame structure at the side of saddle support rod, the inner chamber of left side bottom of crossbeam frame structure is set up with strip -shaped channel, the inner chamber of strip -shaped channel is inserted with locking strip, be equipped with locking hole on the side of seat plug -in rod. Adopt the design and use of the locking strip cooperation of plug -in type locking hole, when carrying out seat height adjustment, will not produce additional force to the car of bicycle, for example the extrusion of traditional clamp, on the basis of realizing seat adjustment, has kept the integrity of bicycle frame greatly, is favorable to improving the service life of bicycle.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically to a bicycle frame structure. Background Technology

[0002] Bicycles are one of the means of transportation for people to travel. Bicycles, also known as pedal bikes or bicycles, are usually small two-wheeled land vehicles. After a person gets on the bike, he or she uses his or her feet to pedal for power. They are a green and environmentally friendly means of transportation. However, the frame is an important component of a bicycle.

[0003] Currently, all bicycles have a seat height adjustment function. This is achieved by installing a clamp structure at the insertion point of the seat rod, which allows the seat rod to be loosened, thus enabling seat height adjustment.

[0004] However, the above-mentioned adjustment function design has certain defects and problems. For example, whether to fix it or not through the clamp structure requires a large external pressure, which will generate strong compressive force on the frame structure. After long-term use, problems such as not being able to insert or remove the clamp or not being able to lock it tightly often occur. This is because the frame structure has been deformed during long-term use.

[0005] Therefore, we propose a bicycle frame structure to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a bicycle frame structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] Preferably, the bicycle frame structure includes a mounting base, a seat support rod fixedly welded to the top of the mounting base, a seat insert rod inserted into the inner cavity of the seat support rod, a crossbeam structure fixedly welded to the top of the side of the seat support rod, a strip-shaped channel opened in the inner cavity of the bottom left side of the crossbeam structure, a locking strip inserted into the inner cavity of the strip-shaped channel, and a locking hole opened on the side of the seat insert rod.

[0009] Preferably, a sliding opening is provided at the bottom of the crossbeam frame and on the left side of the bottom of the strip channel.

[0010] Preferably, a letter-shaped push plate structure is fixedly installed on the left side of the bottom of the locking bar.

[0011] Preferably, a spring is installed in the inner cavity of the strip channel, with the two ends of the spring abutting against the left side of the locking bar and the inner wall of the strip channel, respectively.

[0012] Preferably, the width and height of the locking strip are the same as the inner cavity size of the locking hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The bicycle's frame structure uses a plug-in locking bar combined with locking holes. When adjusting the seat height, it does not exert additional force on the bicycle's mechanism, such as the squeezing force of traditional clamps. While achieving seat adjustment, it greatly maintains the integrity of the bicycle frame, which helps to extend the bicycle's lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0017] In the diagram: 1. Mounting base; 2. Seat support rod; 3. Crossbeam frame structure; 4. Seat insertion rod; 5. Locking hole; 6. Strip channel; 7. Locking strip; 8. Push plate structure; 9. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides a technical solution for the frame structure of a bicycle:

[0020] Example:

[0021] A bicycle frame structure includes a mounting base 1, a seat support rod 2 fixedly welded to the top of the mounting base 1, a seat insert rod 4 inserted into the inner cavity of the seat support rod 2, a crossbeam structure 3 fixedly welded to the top of the side of the seat support rod 2, a strip channel 6 opened in the inner cavity of the bottom left side of the crossbeam structure 3, a locking strip 7 inserted into the inner cavity of the strip channel 6, and a locking hole 5 opened on the side of the seat insert rod 4.

[0022] A sliding opening is provided at the bottom of the crossbeam frame, on the left side of the bottom of the strip channel 6.

[0023] Among them, a 7-shaped push plate structure 8 is fixedly installed on the left side of the bottom of the locking strip 7.

[0024] A spring 9 is installed inside the cavity of the strip channel 6, with the two ends of the spring 9 abutting against the left side of the locking bar 7 and the inner wall of the strip channel 6, respectively.

[0025] The width and height of the locking strip 7 are the same as the inner cavity dimensions of the locking hole 5.

[0026] In this embodiment, when the seat height needs to be adjusted, the push plate structure 8 is operated manually. The push plate structure 8 drives the locking strip 7 to be pulled out of the inner cavity of the locking hole 5. Then the seat insertion rod 4 can be adjusted to adjust the seat height. After the adjustment is completed, the push plate structure 8 is released until the locking strip 7 is against the seat insertion rod 4. Finally, the seat insertion rod 4 is slightly adjusted so that the locking strip 7 is inserted into the inner cavity of the locking hole 5.

[0027] In this technical solution, the design and use of the plug-in locking strip 7 in conjunction with the locking hole 5 ensures that no additional force is exerted on the bicycle's mechanism when adjusting the seat height, such as the squeezing force of a traditional clamp. While achieving seat adjustment, this greatly maintains the integrity of the bicycle frame and helps to extend the bicycle's service life.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bicycle frame structure, including a mounting base (1), characterized in that: A seat support rod (2) is fixedly welded to the top of the mounting base (1). A seat insertion rod (4) is inserted into the inner cavity of the seat support rod (2). A crossbeam frame structure (3) is fixedly welded to the top of the side of the seat support rod (2). A strip channel (6) is opened in the inner cavity on the bottom left side of the crossbeam frame structure (3). A locking strip (7) is inserted into the inner cavity of the strip channel (6). A locking hole (5) is opened on the side of the seat insertion rod (4).

2. The bicycle frame structure according to claim 1, characterized in that: A sliding opening is provided at the bottom of the crossbeam frame and on the left side of the bottom of the strip channel (6).

3. The bicycle frame structure according to claim 1, characterized in that: A 7-shaped push plate structure (8) is fixedly installed on the left side of the bottom of the locking bar (7).

4. The bicycle frame structure according to claim 1, characterized in that: A spring (9) is installed in the inner cavity of the strip channel (6), and the two ends of the spring (9) abut against the left side of the locking bar (7) and the inner wall of the strip channel (6), respectively.

5. The bicycle frame structure according to claim 1, characterized in that: The width and height of the locking strip (7) are the same as the inner cavity size of the locking hole (5).

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