Bicycle frame with built-in hidden connecting wire

Abstract

The utility model discloses a built-in hidden connecting line bicycle frame, which relates to the technical field of bicycle frames, and comprises a head tube, a front upper tube, a front lower tube and a middle tube, one end of the front upper tube is connected with the head tube, the other end of the front upper tube is connected with the middle tube, the front lower tube is positioned below the front upper tube, and the middle tube is positioned below the front lower tube. One end of the front lower pipe is connected with the head pipe, the other end of the front lower pipe is connected with the middle pipe, a storage box mounting part is arranged on the front lower pipe, a threading structure is arranged on the inner side wall of the front lower pipe, and the threading structure and the front lower pipe are integrally formed. According to the bicycle frame with the built-in hidden connecting wire, the threading structure is arranged in the front lower pipe, the connecting wire is installed in the front lower pipe, the function of protecting the connecting wire can be achieved, the connecting wire is stable in position, orderly in installation and simple in machining procedure, the production and machining cost of an enterprise is reduced, and safety is high.

Description

Technical Field

[0001] This utility model relates to the field of bicycle frame technology, and in particular to a bicycle frame with built-in hidden connecting cable. Background Technology

[0002] A bicycle is a mode of transportation that uses human power to pedal, and the meshing of a chain and gears to propel two tires. Compared to electric and fuel-powered vehicles, it is more environmentally friendly. The bicycle frame, as the skeleton of the entire bicycle, constitutes the basic structure of the bicycle and largely determines and influences the correctness and comfort of riding posture.

[0003] While existing bicycles offer environmental benefits and energy savings, and facilitate short-distance travel, the cable routing on existing bicycle frames generally falls into two categories: 1. Exposed cable routing, which is susceptible to environmental influences and reduces lifespan; 2. Multiple cables are placed directly inside the frame tubes, resulting in a messy and easily worn cable routing.

[0004] Therefore, a bicycle frame with a built-in concealed cable connection is needed to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bicycle frame with a built-in hidden connecting cable, which aims to solve the above-mentioned technical problems. This utility model of a bicycle frame with a built-in hidden connecting cable reduces the production and processing costs of enterprises by setting a cable threading structure in the front downtube and installing the connecting cable in a built-in manner. It not only protects the connecting cable, but also ensures that the connecting cable is in a stable position, installed in an orderly manner, and has high safety.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A bicycle frame with a built-in concealed cable connection includes a head tube, a front top tube, a front bottom tube, and a center tube. One end of the front top tube is connected to the head tube, and the other end of the front top tube is connected to the center tube. The front bottom tube is located below the front top tube, with one end connected to the head tube and the other end connected to the center tube. The front bottom tube has a storage box mounting part, and the inner side wall of the front bottom tube has a cable threading structure, which is integrally formed with the front bottom tube.

[0008] Preferably, the threading structure includes a first threading section, a second threading section, and a third threading section, wherein the first threading section has a first threading channel, the second threading section has a second threading channel, and the third threading section has a third threading channel.

[0009] Preferably, the storage box mounting part is provided with a clamping inclined part and a storage box mounting hole, and the storage box mounting hole communicates with the interior of the front lower tube.

[0010] Preferably, the inclined abutment portion is provided with a plurality of snap-fit ​​connection grooves, and the snap-fit ​​connection grooves are inclined.

[0011] Preferably, the head tube, the upper front tube, the lower front tube, and the middle tube are integrally formed.

[0012] Preferably, the middle tube has a cup holder fixing position on the side facing the head tube.

[0013] Preferably, the other side of the middle tube is provided with a rear upper tube connection part and a rear lower tube connection part, the rear upper tube connection part is located above the rear lower tube connection part, and one end of the rear lower tube connection part is connected to the front lower tube.

[0014] Preferably, the upper rear tube connection portion and the lower rear tube connection portion are both U-shaped.

[0015] Preferably, the bottom of the middle tube is provided with a water drainage hole, and the top of the middle tube is provided with a seat mounting part.

[0016] Preferably, the upper end of the head tube is provided with a front frame mounting part, and the lower end of the head tube is provided with a front frame mounting part.

[0017] This utility model features a bicycle frame with a built-in concealed connecting cable, which has the following advantages:

[0018] 1. This utility model features a bicycle frame with a built-in concealed connecting cable. By creating a cable threading structure inside the front downtube, the connecting cable is installed internally, reducing production and processing costs for enterprises. Compared to the previous method of placing the connecting cable directly inside the front downtube or placing messy cable threading tubes inside the front downtube, this utility model not only protects the connecting cable but also ensures that the connecting cable is in a stable position, installed in an orderly manner, and has good sturdiness. It also prevents the connecting cable from shaking or rubbing during riding, thus ensuring high safety.

[0019] 2. This utility model features a bicycle frame with a built-in hidden connecting cable. By setting up a storage box mounting part, it is easy to install the storage box and has good practicality.

[0020] 3. The bicycle frame with built-in hidden connecting cable of this utility model is formed by the head tube, front upper tube, front lower tube and middle tube being integrally molded, which greatly reduces the amount of welding and saves multiple welding processing steps, which helps enterprises reduce production costs. The overall structure is more beautiful and has better rigidity.

[0021] 4. This utility model features a bicycle frame with a built-in hidden connecting cable. By setting a cup holder fixing position, it is easy to fix the cup holder, which can be used to fix the cup on the cup holder, making it convenient for users to carry cups or water bottles. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 The diagram shows a partial cross-sectional structure.

[0024] Figure 3 for Figure 1 The diagram shows the structural schematic of the storage box mounting section;

[0025] Figure 4 for Figure 3 The diagram shows a cross-sectional structure.

[0026] The numbers on the map are:

[0027] 1. Head tube; 2. Front upper tube; 3. Front lower tube; 4. Middle tube; 5. Storage box mounting part; 6. Cable threading structure; 7. First cable threading part; 8. Second cable threading part; 9. Third cable threading part; 10. Tightening inclined part; 11. Storage box mounting hole; 12. Buckle connection groove; 13. Cup holder fixing position; 14. Rear upper tube connection part; 15. Rear lower tube connection part; 16. Seat mounting part; 17. Head frame mounting part; 18. Front frame mounting part. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the following detailed description of the utility model is provided in conjunction with the embodiments and accompanying drawings.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figure 1As shown, a bicycle frame with a built-in hidden cable connection includes a head tube 1, a front upper tube 2, a front lower tube 3, and a middle tube 4. One end of the front upper tube 2 is connected to the head tube 1, and the other end of the front upper tube 2 is connected to the middle tube 4. The front lower tube 3 is located below the front upper tube 2. One end of the front lower tube 3 is connected to the head tube 1, and the other end of the front lower tube 3 is connected to the middle tube 4. The front lower tube 3 is provided with a storage box mounting part 5, and the inner side wall of the front lower tube 3 is provided with a cable threading structure 6. The cable threading structure 6 is integrally formed with the front lower tube 3.

[0032] like Figure 1 and Figure 2 As shown, the threading structure 6 includes a first threading part 7, a second threading part 8, and a third threading part 9. The first threading part 7 has a first threading channel, the second threading part 8 has a second threading channel, and the third threading part 9 has a third threading channel.

[0033] It should be noted that by opening a wire-passing structure 6 inside the front lower tube 3, a portion of the material used in the original front lower tube 3 can be used to form the wire-passing structure 6, or a Teflon rod can be used to form the wire-passing structure 6, allowing for built-in installation of connecting wires and reducing the production and processing costs for enterprises.

[0034] It should be further explained that the cable threading structure 6 and the front lower tube 3 are integrally formed and fixed in position. Compared with the previous method of placing the connecting cable directly inside the front lower tube 3 or placing messy cable threading tubes inside the front lower tube 3, this utility model can not only protect the connecting cable, but also ensure that the connecting cable is in a stable position, installed in an orderly manner, and has good firmness. It avoids the connecting cable from shaking and rubbing during riding, thus ensuring high safety.

[0035] like Figure 3 and Figure 4 As shown, the storage box mounting part 5 is provided with a pressing inclined part 10 and a storage box mounting hole 11, and the storage box mounting hole 11 communicates with the interior of the front lower tube 3.

[0036] like Figure 3 and Figure 4 As shown, the inclined abutment portion 10 is provided with a plurality of snap-fit ​​connection grooves 12, and the snap-fit ​​connection grooves 12 are inclined.

[0037] It should be noted that by setting the storage box mounting part 5, it is easy to install the storage box; by setting the inclined part 10 and the buckle connecting groove 12 in an inclined and smooth shape, it is easy to firmly install the buckle locking structure of the storage box on the front lower tube 3 through the inclined part 10 and the buckle connecting groove 12, and it is also easy to disassemble, which is practical.

[0038] like Figure 1 and Figure 2As shown, the head tube 1, front upper tube 2, front lower tube 3, and middle tube 4 are integrally formed. In this embodiment, the head tube 1, front upper tube 2, front lower tube 3, and middle tube 4 can be integrally blow-molded from carbon fiber material. Carbon fiber material has excellent characteristics such as high specific strength, high specific modulus, light weight, corrosion resistance, strong designability, and ease of processing.

[0039] It should be noted that by using the integrated molding of the head tube 1, front upper tube 2, front lower tube 3 and middle tube 4, the amount of welding is greatly reduced, saving multiple welding processes, which helps enterprises reduce production costs, and the overall structure is more aesthetically pleasing and has better rigidity.

[0040] like Figure 1 As shown, the middle tube 4 is provided with a cup holder fixing position 13 on the side facing the head tube 1. By setting the cup holder fixing position 13, it is easy to fix the cup holder and the cup can be fixed on the cup holder for use, making it convenient for users to carry the cup or water bottle.

[0041] like Figure 1 As shown, the other side of the middle tube 4 is provided with a rear upper tube connection part 14 and a rear lower tube connection part 15. The rear upper tube connection part 14 is located above the rear lower tube connection part 15, and one end of the rear lower tube connection part 15 is connected to the front lower tube 3.

[0042] like Figure 1 As shown, the upper rear tube connection 14 is U-shaped, and the lower rear tube connection 15 is U-shaped.

[0043] It should be noted that the rear upper tube connecting part 14 is used to connect the rear upper tube of the frame, and the rear lower tube connecting part 15 is used to connect the rear lower tube of the frame.

[0044] like Figure 1 As shown, the bottom of the middle tube 4 is provided with a water drainage hole, and the top of the middle tube 4 is provided with a seat mounting part 16.

[0045] It should be noted that the water drainage hole facilitates drainage and sewage discharge; the seat mounting part 16 is used to connect the bicycle seat.

[0046] like Figure 1 As shown, the upper end of the head tube 1 is provided with a front frame mounting part 17, and the lower end of the head tube 1 is provided with a front frame mounting part 18.

[0047] It should be noted that the headframe mounting part 17 is used to connect the headframe of the bicycle, and the front frame mounting part 18 is used to connect the front frame of the bicycle.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A bicycle frame with a built-in concealed connecting cable, comprising a head tube (1), a front top tube (2), a front bottom tube (3), and a center tube (4), characterized in that: One end of the upper front tube (2) is connected to the head tube (1), and the other end of the upper front tube (2) is connected to the middle tube (4). The lower front tube (3) is located below the upper front tube (2). One end of the lower front tube (3) is connected to the head tube (1), and the other end of the lower front tube (3) is connected to the middle tube (4). The lower front tube (3) is provided with a storage box mounting part (5). The inner wall of the lower front tube (3) is provided with a threading structure (6). The threading structure (6) and the lower front tube (3) are integrally formed. The head tube (1), the upper front tube (2), the lower front tube (3) and the middle tube (4) are integrally formed.

2. The bicycle frame with built-in concealed connecting cable according to claim 1, characterized in that: The threading structure (6) includes a first threading part (7), a second threading part (8) and a third threading part (9). The first threading part (7) has a first threading channel, the second threading part (8) has a second threading channel, and the third threading part (9) has a third threading channel.

3. The bicycle frame with built-in concealed connecting cable according to claim 2, characterized in that: The storage box mounting part (5) is provided with a pressing inclined part (10) and a storage box mounting hole (11), and the storage box mounting hole (11) is connected to the interior of the front lower tube (3).

4. The bicycle frame with built-in concealed connecting cable according to claim 3, characterized in that: The inclined part (10) is provided with a plurality of snap-fit ​​connection grooves (12), and the snap-fit ​​connection grooves (12) are inclined.

5. The bicycle frame with built-in concealed connecting cable according to claim 1, characterized in that: The middle tube (4) is provided with a cup holder fixing position (13) on the side facing the head tube (1).

6. The bicycle frame with built-in concealed connecting cable according to claim 5, characterized in that: The other side of the middle tube (4) is provided with a rear upper tube connection part (14) and a rear lower tube connection part (15). The rear upper tube connection part (14) is located above the rear lower tube connection part (15), and one end of the rear lower tube connection part (15) is connected to the front lower tube (3).

7. The bicycle frame with built-in concealed connecting cable according to claim 6, characterized in that: The upper rear tube connection (14) is U-shaped, and the lower rear tube connection (15) is U-shaped.

8. The bicycle frame with built-in concealed connecting cable according to claim 1, characterized in that: The bottom of the middle tube (4) is provided with a water drainage hole, and the top of the middle tube (4) is provided with a seat mounting part (16).

9. The bicycle frame with built-in concealed connecting cable according to claim 1, characterized in that: The upper end of the head tube (1) is provided with a front frame mounting part (17), and the lower end of the head tube (1) is provided with a front frame mounting part (18).

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