Bicycle front fork

Abstract

The utility model relates to the field of bicycle front forks, in particular to a bicycle front fork which comprises a front fork body, the front fork body comprises a front wheel connecting part and a frame connecting part which are integrally formed, the lower end of the front wheel connecting part is used for being rotationally connected with a bicycle front wheel, and the upper end of the frame connecting part is used for being rotationally connected with a bicycle frame. The top end of the frame connecting part is used for being fixedly connected with a handlebar, and the upper end of the front wheel connecting part and the lower end of the frame connecting part are integrally formed. Wherein a first threading hole is formed in the inner side of the front wheel connecting part, the frame connecting part is hollow, a second threading hole and a third threading hole are formed in the frame connecting part, the second threading hole is communicated with the first threading hole, and a front wheel brake cable penetrates into the frame connecting part through the first threading hole and the second threading hole and penetrates out of the third threading hole. According to the bicycle front fork, the bicycle front fork is designed to be integrally formed, the production and machining speed and efficiency of the bicycle front fork are improved, and the manufacturing cost of the bicycle front fork is reduced.

Description

Technical Field

[0001] This application relates to the field of bicycle front forks, and more particularly to a bicycle front fork. Background Technology

[0002] The front fork is located at the front of the bicycle structure. Its upper end is connected to the handlebar assembly, the frame assembly mates with the head tube, and its lower end mates with the front wheel assembly, forming the bicycle's steering system.

[0003] Currently, commonly used bicycle forks are mainly made of aluminum alloy, and they are usually welded together from multiple aluminum alloy sections. This results in slow production speed, low efficiency, and high manufacturing cost for bicycle forks. Summary of the Invention

[0004] In order to improve the production speed and efficiency of bicycle front forks, this application provides a bicycle front fork that improves the production speed and efficiency and reduces the manufacturing cost of the bicycle front fork by designing it as a one-piece molding.

[0005] This application provides a bicycle front fork, which adopts the following technical solution:

[0006] A bicycle front fork, comprising:

[0007] The fork body includes an integrally formed front wheel connection part and a frame connection part. The lower end of the front wheel connection part is used to rotatably connect with the front wheel of the bicycle, the upper end of the frame connection part is used to rotatably connect with the bicycle frame, and the top end of the frame connection part is used to fixally connect with the handlebars. The upper end of the front wheel connection part and the lower end of the frame connection part are integrally formed.

[0008] The front wheel connection part has a first threading hole formed on its inner side. The frame connection part is hollow inside and has a second threading hole and a third threading hole formed on it. The second threading hole is connected to the first threading hole. The front wheel brake cable passes through the first threading hole and the second threading hole into the frame connection part and exits through the third threading hole.

[0009] Preferably, the second threading hole is an oblong hole.

[0010] Preferably, an inner end of the front wheel connection portion is formed with a groove for accommodating the front wheel brake cable.

[0011] Preferably, a first cover plate is detachably connected and fixed to one inner end of the front wheel connection portion, the first cover plate having a through hole for threading, and the first cover plate covering the thread groove.

[0012] Preferably, the wire hole in the cover plate is an oblong hole.

[0013] Preferably, a groove with the same shape as the groove is formed on the other inner end of the front wheel connection portion.

[0014] Preferably, a second cover plate is detachably connected and fixed to the other end of the front wheel connection portion, and the second cover plate covers the groove.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This application improves the production speed and efficiency of the bicycle front fork by designing it as a one-piece molding, and reduces the manufacturing cost of the bicycle front fork.

[0017] 2. This application provides a wire groove on the front wheel connection part, which allows the front wheel brake cable to enter the first wire hole better. Furthermore, by providing a first cover plate, the front wheel brake cable is kept neater and is less likely to get tangled in the front wheel.

[0018] 3. This application makes the bicycle fork easier to process by setting a groove on the front wheel connection part, thereby improving its production speed and efficiency, and makes the bicycle fork more aesthetically pleasing by setting a second cover plate.

[0019] 4. By setting the second wire hole and the cover plate wire hole as oblong holes, this application makes it easier for the front wheel brake cable to be threaded into the wire groove and the inside of the frame connection, thereby reducing the wear of the front wheel brake cable during use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a bicycle front fork in an embodiment of this application.

[0021] Figure 2 yes Figure 1 A split view of a bicycle front fork (since the bicycle front fork is integrally formed, this split view is a virtual diagram to facilitate understanding of the technical solution of this application).

[0022] Figure 3 This is a schematic diagram of the connection between the bicycle front fork and the bicycle frame in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the overall structure of the bicycle front fork in an embodiment of this application.

[0024] Figure 5 This is a structural schematic diagram of the bicycle front fork from another angle in an embodiment of this application.

[0025] Figure 6 This is a schematic diagram of the overall structure of the bicycle front fork from another angle in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Front fork body; 11. Front wheel connection; 111. Through hole; 112. First cable hole; 113. Cable groove; 114. Groove; 12. Frame connection; 121. Second cable hole; 122. Third cable hole; 2. First cover plate; 21. Cable hole in cover plate; 3. Second cover plate; 100. Bicycle frame. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] This application discloses a bicycle front fork.

[0029] Reference Figure 1 The bicycle fork includes a fork body 1.

[0030] Reference Figure 1 and Figure 2 The front fork body 1 is fork-shaped in general. The front fork body 1 includes a front wheel connection part 11 and a frame connection part 12. The top end of the front wheel connection part 11 and the bottom end of the frame connection part 12 are integrally formed.

[0031] Reference Figure 2 The top of the front wheel connecting part 11 is formed with a through hole 111. The bottom end of the frame connecting part 12 passes through the through hole 111 of the front wheel connecting part 11, and the interior of the frame connecting part 12 is hollow. Preferably, the frame connecting part 12 can be a hollow tube. The bottom of the frame connecting part 12 is integrally formed and connected to the through hole 111. Since the front wheel connecting part 11 and the frame connecting part 12 are integrally formed, the through hole 111 is not displayed in the overall integrally formed structure.

[0032] Reference Figure 3 The bottom end of the front wheel connection part 11 is used to rotatably connect with the front wheel of the bicycle; the upper part of the frame connection part 12 is used to rotatably connect with the bicycle frame 100, and the top end of the frame connection part 12 is used to fixally connect with the handlebars.

[0033] Reference Figure 1 and Figure 2 A first threading hole 112 is formed on the front wheel connection part 11. One end of the first threading hole 112 is located at the bottom of one inner end of the front wheel connection part 11, and the other end of the first threading hole 112 is located in the through hole 111 of the front wheel connection part 11.

[0034] The frame connection portion 12 has a second cable hole 121 and a third cable hole 122 formed on it. The second cable hole 121 is located at the bottom of the side end of the frame connection portion 12 and communicates with the first cable hole 112. The second cable hole 121 is an oblong hole to allow the front wheel brake cable to pass through the second cable hole 121 and enter the interior of the frame connection portion 12 more easily from inside the first cable hole 112. The third cable hole 122 is located above the second cable hole 121. The front wheel brake cable that has entered the interior of the frame connection portion 12 exits the frame connection portion 12 through the third cable hole 122. The third cable hole 122 can be an oblong hole or an upwardly angled hole to reduce wear on the front wheel brake cable during installation and use. When installing the front wheel brake cable, the front wheel brake cable is passed through the first threading hole 112 and the second threading hole 121 into the interior of the frame connection part 12, and then out through the third threading hole 122.

[0035] To facilitate better entry of the front wheel brake cable into the first threaded hole 112, a groove 113 is formed on one side of the front wheel connecting part 11. The groove 113 is used to accommodate the front wheel brake cable. The groove 113 communicates with the first threaded hole 112 to allow the front wheel brake cable to enter the first threaded hole 112 more effectively.

[0036] Reference Figure 1 and Figure 4 The bicycle front fork also includes a first cover plate 2, which is detachably connected and fixed to the inner end of the front wheel connection part 11. The detachable connection and fixing include, but are not limited to, plug-in, snap-fit, and bolt connections. The first cover plate 2 can also be welded and fixed to the front wheel connection part 11. The first cover plate 2 covers the cable groove 113, and has a cable pass-through hole 21 formed on it. The cable pass-through hole 21 is either oblong or angled upwards, allowing the front wheel brake cable to better enter the cable groove 113, thereby reducing wear on the front wheel brake cable during installation and use.

[0037] Reference Figure 5 The other inner end of the front wheel connection part 11 is also formed with a groove 114 that is the same shape as the wire groove 113, so that the two sides can be symmetrical when designing the mold of the bicycle front fork, and facilitate the production and processing of the bicycle front fork.

[0038] Reference Figure 5 and Figure 6The bicycle fork also includes a second cover plate 3, which is detachably connected and fixed to the inner end of the front wheel connection portion 11. The detachable connection and fixing include, but are not limited to, plug-in, snap-fit, and bolt connections. The second cover plate 3 can also be welded to the front wheel connection portion 11. The second cover plate 3 covers the groove 114, and its shape is the same as that of the first cover plate 2, making the bicycle fork structure more aesthetically pleasing.

[0039] In use, the front wheel brake cable enters the cable groove 113 on the front wheel connection part 11 through the cable hole 21 on the cover plate, then enters the first cable hole 112 through the cable groove 113, and enters the interior of the frame connection part 12 through the first cable hole 112 and the second cable hole 121, and then exits the frame connection part 12 through the third cable hole 122.

[0040] The main body 1 of the bicycle fork is integrally formed and can be made of magnesium alloy casting. It replaces the traditional segmented welded aluminum alloy bicycle fork. The integrally formed bicycle fork of this application has a fast production speed, high efficiency and low cost.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bicycle front fork, characterized in that, include: The fork body includes an integrally formed front wheel connection part and a frame connection part. The lower end of the front wheel connection part is used to rotatably connect with the front wheel of the bicycle, the upper end of the frame connection part is used to rotatably connect with the bicycle frame, and the top end of the frame connection part is used to fixally connect with the handlebars. The upper end of the front wheel connection part and the lower end of the frame connection part are integrally formed. The front wheel connection part has a first threading hole formed on its inner side. The frame connection part is hollow inside and has a second threading hole and a third threading hole formed on it. The second threading hole is connected to the first threading hole. The front wheel brake cable passes through the first threading hole and the second threading hole into the frame connection part and exits through the third threading hole.

2. A bicycle front fork according to claim 1, characterized in that, The second threading hole is an oblong hole.

3. A bicycle front fork according to claim 1, characterized in that, The inner end of the front wheel connection is formed with a groove for accommodating the front wheel brake cable.

4. A bicycle front fork according to claim 3, characterized in that, A first cover plate is detachably connected and fixed to one inner end of the front wheel connection part. The first cover plate has a cover plate through hole and covers the wire groove.

5. A bicycle front fork according to claim 4, characterized in that, The cover plate has a waist-shaped hole for threading the wire.

6. A bicycle front fork according to claim 2, characterized in that, A groove with the same shape as the groove is formed on the other inner end of the front wheel connection part.

7. A bicycle front fork according to claim 6, characterized in that, A second cover plate is detachably connected and fixed to the other end of the front wheel connection, and the second cover plate covers the groove.

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