Cabling method in bicycle frame tube

Abstract

The method comprises the steps that one end of a lead penetrates into a bicycle frame from a hole in the right side of a bicycle head tube and penetrates out of an opening in the side wall of a right lower fork by means of attraction of a magnet, then a rear disc brake oil pipe and an electric wire are pulled into the bicycle frame through the lead, and finally the rear disc brake oil pipe and the electric wire are pulled out of an opening in the right side of the bicycle head tube. Silencing cotton and an opening plug on the right side of the bicycle head pipe are installed on the bicycle head pipe; a front shift cable and a rear shift cable which are sleeved with shells are installed, and noise reduction cotton, a middle pipe stop plug and an opening plug on the left side of a bicycle head pipe are correspondingly installed; a rear tail lamp wire connected with a rear tail lamp penetrates out of a gap between a cutting groove in the outer side of the fender and the lower fork supporting rod after passing through a rear fender inner wire guiding groove, and the rear tail lamp wire is connected with a wire; according to the invention, the lead wire made of a magnetic attraction material is adopted, and after the lead wire is attracted to penetrate through the magnet, the threading of the rear disc brake oil pipe and the electric wire is smoothly completed by pulling the lead wire, so that the threading work in the frame of the bicycle is efficiently completed, and the threading effect is favorably improved.

Description

Technical Field

[0001] The invention relates to a bicycle assembling method, in particular to a wiring method in a bicycle frame tube. Background Art

[0002] At present, many bicycles need to be wired inside the frame during assembly. If it is a hard wire, it can be directly inserted into the openings of different parts of the frame and pulled out from another opening. However, for some soft wires that need to pass through a long distance in the frame, such as the electric wire and the rear disc brake oil pipe that need to pass from the rear fork of the frame through the frame down tube into the head tube, it is difficult to achieve the wire routing inside the frame according to the existing wiring method. Summary of the invention

[0003] In order to make up for the above shortcomings, the present invention provides a method for routing wires in a bicycle frame tube, which can achieve smooth routing of wires in the frame.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a method for routing wires in a bicycle frame tube, the specific steps are as follows:

[0005] Step 1: Assemble the rear disc brake hose and down tube wires:

[0006] 1-1. Insert one end of the lead wire through the opening on the right side of the front tube, and use the magnet to attract the other end of the lead wire to move down the lower tube, pass through the bottom bracket, and then pass through the opening on the side wall of the right lower fork;

[0007] 1-2. Put the lower fork plug onto the root of one end of the rear disc brake oil pipe, and fix the other end of the rear disc brake oil pipe with one end of the lead wire;

[0008] 1-3. Pull the lead wire to pull the other end of the rear oil pipe into the right lower fork, then pull the lead wire out of the right opening of the bottom bracket for a section, fix one end of the wire on the lead wire pulled out of the bottom bracket for a section, then gently pull the lead wire to pull the wire into the frame, continue to gently pull the lead wire, and finally pull one end of the wire and the other end of the rear disc brake oil pipe out of the right opening of the front tube, and then complete the threading of the disc brake oil pipe and the wire;

[0009] 1-4. Put the silencer cotton on the outside of the other end of the rear disc brake oil pipe, and push the silencer cotton from the right opening of the head tube toward the down tube until it is completely inserted into the down tube;

[0010] 1-5. Install the plug on the right side of the front tube and insert the plug into the opening on the right side wall of the lower fork.

[0011] Step 2: Assemble the front and rear gear cable housings:

[0012] 2-1. Insert the outer shells of the front and rear gear cables from the left opening of the front tube, and pull them out from the left opening of the bottom bracket through the lower tube;

[0013] 2-2. Sheath the outer ends of the outer casings of the front derailleur cable and the rear derailleur cable with sound-absorbing cotton respectively, and then pass the sound-absorbing cotton on the outer sides of the outer casings of the derailleur cables through the left-side opening of the bottom bracket into the down tube completely in sequence;

[0014] 2-3. Plug one end of the front derailleur cable and the rear derailleur cable back into the bottom bracket from the left-side opening of the bottom bracket. One end of the front derailleur cable and the other end of the wire pass through the wire hole in the middle of the bottom bracket. Finally, the outer casing of one end of the front derailleur cable is positioned on the mid-tube stopper, and the rear derailleur cable passes through the bottom bracket into the lower right fork and finally passes out through the opening on the side wall of the lower right fork;

[0015] 2-4. Install the plug at the left-side opening of the head tube;

[0016] Step Three: Wiring of the taillight:

[0017] 3-1. The taillight wire connected to the rear taillight first passes through the mudguard and the mounting hole on its inner piece and extends into the inside of the mudguard, and then passes through the left-side notch inside the mudguard into the wire groove of the mudguard. Pull the taillight wire completely into the wire groove of the mudguard. Finally, the taillight wire passes out through the gap between the side cut groove of the mudguard and the lower fork strut;

[0018] 3-2. Connect and conduct electricity the taillight wire passing out through the gap between the side cut groove of the mudguard and the lower fork strut and the other end of the wire passing out through the wire hole in the middle of the bottom bracket;

[0019] Step Four: Installation of the inner sleeve in the bottom bracket:

[0020] 4-1. Install the right cup on the right end of the main shaft sleeve, and tightly insert the rear end of the guide shaft into the inner side of the left end of the main shaft sleeve;

[0021] 4-2. Insert the front end with a reduced diameter of the guide shaft into the bottom bracket through the right-side opening of the bottom bracket. Use the front end with a smaller diameter of the guide shaft to push aside the wire tube inside the bottom bracket, and push the main shaft sleeve into the bottom bracket to the thread installation position;

[0022] 4-3. Hold the exposed part of the front end of the guide shaft, move the main shaft sleeve to a position suitable for thread assembly, and lock the right cup;

[0023] 4-4. Pull out the guide shaft from the left end of the main shaft sleeve, and install the left cup on the left end of the main shaft sleeve.

[0024] As a further improvement of the present invention, the lead wire is a steel wire rope.

[0025] As a further improvement of the present invention, one end of the lead wire is provided with a wire threading guide head, one end of the wire threading guide head is provided with an oil pipe positioning jack, and the rear disc brake oil pipe can be tightly inserted into the oil pipe positioning jack.

[0026] As a further improvement of the present invention, the wire threading guide head is a bullet-shaped cylindrical structure with a larger diameter at one end than the other end. A stepped hole with a larger diameter at one end than the other end is further provided inside the other end of the wire threading guide head. One end of the stepped hole is coaxially communicated with the oil pipe positioning jack, and the inner diameter of one end of the stepped hole is smaller than the inner diameter of the oil pipe positioning jack. One end of the lead wire is inserted into the stepped hole, and a size-increasing structure is formed at one end of the lead wire to stop on the stepped surface between the two ends of the wire threading stepped hole.

[0027] As a further improvement of the present invention, when pulling the lead wire in step 1-3 to pull the other end of the rear oil pipe into the lower right fork by about 20 cm, stop pulling the lead wire, and then pull out a section of the lead wire from the right opening of the five-way joint.

[0028] As a further improvement of the present invention, a female connector is provided at one end of the electric wire, and the female connector at one end of the electric wire is wound and bonded to a section of the lead wire pulled out from the five-way joint by masking tape.

[0029] As a further improvement of the present invention, in step 2-1, first, one end of the outer casings of the front derailleur cable and the rear derailleur cable is wound and fixed with masking tape for the front derailleur cable and the rear derailleur cable, and then the fixed one ends of the front derailleur cable and the rear derailleur cable are inserted into the left opening of the head tube and kept with the front derailleur cable above the rear derailleur cable. After the one ends of the front derailleur cable and the rear derailleur cable are pulled out from the left opening of the five-way joint, the masking tape is torn off to separate the one ends of the front derailleur cable and the rear derailleur cable.

[0030] As a further improvement of the present invention, in step 2-3, the rear derailleur cable is passed through the opening on the side wall of the lower right fork by 34-36 CM.

[0031] As a further improvement of the present invention, when installing the plug for the right opening of the head tube in step 1-5, the oil pipe needs to be pushed to be flush with the plug opening and then the screw is tightened, and then the oil pipe is pushed out; when installing the plug for the left opening of the head tube in step 2-4, the outer casings of the front derailleur cable and the rear derailleur cable need to be retracted to be flush with the plug opening and then the screw is tightened.

[0032] As a further improvement of the present invention, the guide shaft includes a plugging section, a guiding section, and a shifting section. The guiding section is a frustum structure with a smaller diameter at the front end than the rear end. The plugging section is integrally formed coaxially at the rear end of the guiding section. The plugging section can be tightly inserted into the inner side of the main shaft sleeve. The annular stepped surface formed between the rear end of the guiding section and the plugging section can stop on the axial end surface of the main shaft sleeve. The shifting section is integrally formed coaxially at the front end of the guiding section. The diameter of the shifting section is the same as the diameter of the front end of the guiding section, and a convex arc surface is formed at the front end of the shifting section.

[0033] The beneficial technical effects of the present invention are as follows: By using a lead wire made of a magnetic attraction material, the lead wire can be smoothly moved and threaded through the area in the frame where wire threading is required by means of magnet attraction. By fixing the rear disc brake oil pipe and the electric wire to the lead wire that has been threaded through the frame, and pulling the lead wire, the rear disc brake oil pipe and the electric wire are moved in the frame, thereby realizing the smooth wire threading of the rear disc brake oil pipe and the electric wire in the frame, enabling the wire threading work in the bicycle frame to be efficiently completed, which is beneficial to improving the wire threading effect. The present invention also designs a guide shaft with a special structure. The thinner front end of the guide shaft toggles the wire pipe in the bottom bracket, and then guides the main shaft sleeve to smoothly penetrate into the bottom bracket, avoiding being affected by the wire pipe in the bottom bracket and not crushing the wire pipe in the bottom bracket, ensuring that the wire pipe in the bottom bracket is finally just freely accommodated in the annular space between the inner side wall of the bottom bracket and the outer side wall of the main shaft sleeve, without being damaged or pressed, further improving the installation efficiency of the main shaft at the bottom bracket of the bicycle and avoiding damaging the wire pipe for wiring in the frame during the assembly of the bottom bracket main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional view of the lead wire structure principle of the present invention;

[0035] Figure 2 is a front view of the wire threading guide head of the present invention;

[0036] Figure 3 is a right view of the wire threading guide head of the present invention;

[0037] Figure 4 is a front view of the guide shaft of the present invention.

[0038] Lead wire---1 Wire threading guide head---2 Oil pipe positioning jack---3

[0039] Step hole---4 Insertion section---5 Guide section---6

[0040] Pushing section---7 Convex arc surface---8 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] Embodiment: A method for wiring inside the pipe of a bicycle frame, characterized in that the specific steps are as follows:

[0042] Step 1: Assemble the rear disc brake oil pipe and the lower pipe electric wire:

[0043] 1-1. Insert one end of the lead wire through the opening on the right side of the head tube, and make the other end of the lead wire move downward along the lower tube through the bottom bracket and then out through the opening on the side wall of the lower right fork by means of magnet attraction;

[0044] 1-2. Slip the lower fork plug onto the root of one end of the rear disc brake oil pipe, and fix and position the other end of the rear disc brake oil pipe and one end of the lead wire;

[0045] 1-3. The traction lead wire pulls the other end of the rear oil pipe into the lower right fork, then pulls out a section of the lead wire from the right opening of the five-way joint. Fix one end of the wire to the section of the lead wire pulled out from the five-way joint, then gently pull the lead wire to pull the wire into the frame. Continue to gently pull the lead wire until one end of the wire and the other end of the rear disc brake oil pipe are pulled out from the right opening of the head tube, completing the threading of the rear disc brake oil pipe and the wire. One end of the wire is finally butted and conducted with the wire led out from the front hub of the bicycle to realize the power supply of the front headlight and the rear taillight. The other end of the rear disc brake oil pipe is finally connected to the rear disc brake handle on the bicycle handlebar for the rear wheel disc brake. The threading of the rear disc brake oil pipe and the wire is completed by means of the traction of the lead wire. The lead wire realizes smooth threading in the frame tube by means of magnetic attraction, and the threading position is accurate, ensuring the smooth threading of the rear disc brake oil pipe and the wire in the frame, and the threading efficiency is extremely high;

[0046] 1-4. Put the sound-absorbing cotton on the outside of the other end of the rear disc brake oil pipe, and push the sound-absorbing cotton from the right opening of the head tube towards the down tube until it is completely sent into the down tube. There is no requirement for the length of the sound-absorbing cotton on the outside of the other end of the rear disc brake oil pipe, which mainly plays the role of damping and noise reduction for the impact between the rear disc brake oil pipe and the inner wall of the down tube during riding;

[0047] 1-5. Install the plug for the right opening of the head tube, and insert the down fork plug into the opening on the side wall of the lower right fork;

[0048] Step Two: Assembly of the outer casings of the front and rear derailleur cables:

[0049] 2-1. Thread one end of the outer casings of the front derailleur cable and the rear derailleur cable with the outer casings through the left opening of the head tube, and pull them out from the left opening of the five-way joint through the down tube;

[0050] 2-2. Put the sound-absorbing cotton on the outside of one end of the outer casings of the front derailleur cable and the rear derailleur cable respectively, and sequentially thread the sound-absorbing cotton on the outside of the outer casings of the derailleur cables completely into the down tube from the left opening of the five-way joint. There is no requirement for the length of the sound-absorbing cotton on the outside of the front derailleur cable and the rear derailleur cable, which mainly plays the role of damping and noise reduction for the impact between the front and rear derailleur cables and the inner wall of the down tube during riding;

[0051] 2-3. Plug one end of the front derailleur cable and the rear derailleur cable back into the five-way joint from the left opening of the five-way joint. One end of the front derailleur cable and the other end of the wire pass through the wire hole in the middle of the five-way joint. Finally, the outer casing of one end of the front derailleur cable is positioned on the mid-tube stop bolt, and the rear derailleur cable passes through the five-way joint into the lower right fork and finally passes out from the opening on the side wall of the lower right fork;

[0052] 2-4. Install the plug for the left opening of the head tube;

[0053] Step Three: Wiring of the taillight:

[0054] 3-1. The rear taillight wire connected to the rear taillight first passes through the rear mudguard and the mounting holes on its inner piece and extends into the interior of the rear mudguard. Then, it penetrates into the wire groove of the rear mudguard through the notch on the left side inside the rear mudguard, and the rear taillight wire is completely pulled into the wire groove of the rear mudguard. Finally, the rear taillight wire passes through the gap between the notch on the right side of the rear mudguard and the lower fork rod.

[0055] 3-2. Connect and conduct electricity the rear taillight wire that passes through the gap between the notch on the rear mudguard piece and the lower fork rod and the other end of the wire that passes through the wire hole in the middle of the bottom bracket.

[0056] Step Four: Installation of the inner sleeve of the bottom bracket:

[0057] 4-1. Install the right bowl on the right end of the main shaft sleeve, and tightly insert the rear end of the guide shaft into the inner side of the left end of the main shaft sleeve.

[0058] 4-2. Insert the front end with a reduced diameter of the guide shaft into the bottom bracket from the right opening of the bottom bracket. Use the front end with a smaller diameter of the guide shaft to push aside the wire tube inside the bottom bracket, and push the main shaft sleeve into the bottom bracket to the thread installation position.

[0059] 4-3. Hold the exposed part of the front end of the guide shaft, move the main shaft sleeve to a position suitable for thread assembly, and lock the right bowl.

[0060] 4-4. Pull out the guide shaft from the left end of the main shaft sleeve, and install the left bowl on the left end of the main shaft sleeve.

[0061] During the installation of the inner sleeve of the bottom bracket, the wire tube inside the bottom bracket is pushed aside with the help of the guide shaft to avoid the wire tube hindering the assembly of the main shaft sleeve, and at the same time avoid the main shaft sleeve squeezing and damaging the wire tube inside the bottom bracket during the assembly process.

[0062] The lead wire is a steel wire rope, and can also be a cable made of other materials. Just install a magnetic adsorption material on it.

[0063] One end of the lead wire is provided with a wire threading guide head. One end of the wire threading guide head is provided with an oil pipe positioning jack. The rear disc brake oil pipe can be tightly inserted into the oil pipe positioning jack. The wire threading guide head is used for fixed connection with the rear disc brake oil pipe, facilitating the wire threading of the rear disc brake oil pipe in the lower tube of the bicycle frame and protecting the end of the rear disc brake oil pipe.

[0064] The wire threading guide head is a bullet-shaped cylindrical structure with a larger diameter at one end and a smaller diameter at the other end. There is also a stepped hole with a larger diameter at one end and a smaller diameter at the other end inside the other end of the wire threading guide head. One end of the stepped hole is coaxially connected to the oil pipe positioning jack, and the inner diameter of one end of the stepped hole is smaller than the inner diameter of the oil pipe positioning jack. One end of the lead wire is inserted into the stepped hole, and a size-increasing structure is formed at one end of the lead wire to stop on the stepped surface between the two ends of the threading stepped hole.

[0065] When the traction lead wire pulls the other end of the rear oil pipe into the lower right fork by about 20 cm in the steps 1-3, pause pulling the lead wire, and then pull out a section of the lead wire from the right opening of the five-way joint.

[0066] A female connector is provided at one end of the wire. The female connector at one end of the wire is wound and bonded to a section of the lead wire pulled out from the five-way joint by the masking tape.

[0067] In the step 2-1, first wind and fix the outer shells of the front shift wire and the rear shift wire at one end with the masking tape, and then pass one end of the fixed front shift wire and rear shift wire through the left opening of the head tube, and keep the front shift wire above the rear shift wire. After one end of the front shift wire and the rear shift wire is pulled out from the left opening of the five-way joint, tear off the masking tape to separate one end of the front shift wire and the rear shift wire. In this way, the outer shells of the front shift wire and the rear shift wire can be fixed, ensuring that their positions will not change during the wire threading process and ensuring smooth wire threading.

[0068] In the step 2-3, the rear shift wire is passed through the opening on the side wall of the lower right fork by 34-36 CM.

[0069] When installing the plug at the right opening of the head tube in the step 1-5, the oil pipe needs to be pushed to be flush with the plug opening and then the screw is tightened, and then the oil pipe is pushed out; when installing the plug at the left opening of the head tube in the step 2-4, the outer shells of the front shift wire and the rear shift wire need to be retracted to be flush with the plug opening and then the screw is tightened.

[0070] The guide shaft includes a plugging section, a guiding section and a shifting section. The guiding section is a frustum structure with a smaller diameter at the front end and a larger diameter at the rear end. The plugging section is integrally formed coaxially at the rear end of the guiding section. The plugging section can be tightly inserted into the inner side of the main shaft sleeve. The annular step surface formed between the rear end of the guiding section and the plugging section can stop at the axial end surface of the main shaft sleeve. The shifting section is integrally formed coaxially at the front end of the guiding section. The diameter of the shifting section is the same as the diameter of the front end of the guiding section, and a convex arc surface is formed at the front end of the shifting section. The guide shaft is preferably made of plastic material, which has a certain elastic force to ensure its tight insertion into the main shaft sleeve and will not fall off during the assembly of the main shaft sleeve, and it will not damage the wire tube when shifting the wire tube in the five-way joint.

Claims

1. A method for routing wires in a bicycle frame tube, characterized by: The specific steps are as follows: Step 1: Assemble the rear disc brake hose and down tube wires: 1-1. Insert one end of the lead wire through the opening on the right side of the front tube, and use the magnet to attract the other end of the lead wire to move down the lower tube, pass through the bottom bracket, and then pass through the opening on the side wall of the right lower fork; 1-2. Put the lower fork plug onto the root of one end of the rear disc brake oil pipe, and fix the other end of the rear disc brake oil pipe with one end of the lead wire; 1-3. Pull the lead wire to pull the other end of the rear oil pipe into the right lower fork, then pull the lead wire out of the right opening of the bottom bracket for a section, fix one end of the wire on the lead wire pulled out of the bottom bracket for a section, then gently pull the lead wire to pull the wire into the frame, continue to gently pull the lead wire, and finally pull one end of the wire and the other end of the rear disc brake oil pipe out of the right opening of the front tube, and then complete the threading of the disc brake oil pipe and the wire; 1-4. Put the silencer cotton on the outside of the other end of the rear disc brake oil pipe, and push the silencer cotton from the right opening of the head tube toward the down tube until it is completely inserted into the down tube; 1-5. Install the plug on the right side of the front tube and insert the plug into the opening on the right side wall of the lower fork. Step 2: Assemble the front and rear gear cable housings: 2-1. Insert the outer shells of the front and rear gear cables from the left opening of the front tube, and pull them out from the left opening of the bottom bracket through the lower tube; 2-2. Install silencer cotton on the outer side of one end of the outer shell of the front and rear shift cables respectively, and then insert the silencer cotton on the outer side of the outer shell of the shift cable and the rear shift cable completely into the lower tube from the left opening of the bottom bracket; 2-3. Insert one end of the front shift cable and the rear shift cable back into the bottom bracket through the opening on the left side of the bottom bracket. Pass one end of the front shift cable and the other end of the wire through the wire hole in the middle of the bottom bracket. Finally, position the outer shell of one end of the front shift cable on the middle tube stopper. Pass the rear shift cable through the bottom bracket into the right lower fork and finally pass through the opening on the side wall of the right lower fork. 2-4. Install the plug on the left side of the front pipe; Step 3: Tail light wiring: 3-1. The rear taillight cable connected to the rear taillight first passes through the mounting holes on the rear mudguard and its inner plate and extends into the rear mudguard, then passes through the left notch inside the rear mudguard into the wire groove of the rear mudguard, and pulls the rear taillight cable completely into the wire groove of the rear mudguard, and finally passes through the gap between the side notch of the rear mudguard and the lower fork support rod; 3-2. Connect the rear taillight wire that passes through the gap between the groove on the rear mud remover and the lower fork support rod to the other end of the wire that passes through the wire hole in the middle of the bottom bracket; Step 4: Install the inner sleeve of the five-way: 4-1. Install the right bowl on the right end of the spindle sleeve, and insert the rear end of the guide shaft tightly into the inner side of the left end of the spindle sleeve; 4-2. Insert the front end of the guide shaft with a reduced diameter into the bottom bracket from the right opening of the bottom bracket, use the front end of the guide shaft with a small diameter to push open the inner cable tube of the bottom bracket, and push the main shaft sleeve into the bottom bracket to the thread installation position; 4-3. Hold the exposed part of the front end of the guide shaft, move the main shaft sleeve to a position suitable for thread assembly, and lock the right bowl; 4-4. Pull out the guide shaft from the left end of the spindle sleeve and install the left bowl on the left end of the spindle sleeve.

2. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: The lead wire is a steel wire rope.

3. The method for routing wires in a bicycle frame tube according to claim 1 or 2, characterized in that: A threading guide head is provided at one end of the lead wire, and an oil pipe positioning socket is provided at one end of the threading guide head. The rear disc brake oil pipe can be tightly inserted into the oil pipe positioning socket.

4. The method for routing wires in a bicycle frame tube according to claim 3, characterized in that: The threading guide head is a bullet-shaped cylindrical structure with a diameter at one end larger than that at the other end. A step hole with a diameter at one end larger than that at the other end is provided in the other end of the threading guide head. One end of the step hole is coaxially connected to the oil pipe positioning socket, and the inner diameter of one end of the step hole is smaller than that of the oil pipe positioning socket. One end of the lead wire is inserted in the step hole, and a size-enhanced structure is formed at one end of the lead wire to stop on the step surface between the two ends of the threading step hole.

5. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: When the lead is pulled in steps 1-3 to pull the other end of the rear oil pipe into the right lower fork by about 20 cm, stop pulling the lead, and then pull the lead out of the right opening of the five-way bracket for a while.

6. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: A female connector is arranged on one end of the electric wire, and the female connector on one end of the electric wire is wound and bonded to a section of lead wire pulled out from the five-way through a masking tape.

7. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: In the step 2-1, first wrap the front and rear gear cables around one end of their outer shells with masking tape to secure them, then insert one end of the fixed front and rear gear cables through the left opening of the front tube, and keep the front gear cable above the rear gear cable. After one end of the front and rear gear cables are pulled out from the left opening of the bottom bracket, tear off the masking tape to separate one end of the front and rear gear cables.

8. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: In step 2-3, the rear shift cable is passed through the opening on the side wall of the right lower fork by 34-36CM.

9. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: When installing the plug on the right side of the front tube in step 1-5, the oil pipe needs to be pushed until it is flush with the plug opening and then the screws are tightened, and then the oil pipe is pushed out; when installing the plug on the left side of the front tube in step 2-4, the outer shells of the front and rear shift cables need to be retracted until they are flush with the plug openings and then the screws are tightened.

10. The method for routing wires in a bicycle frame tube according to claim 1, characterized in that: The guide shaft includes a plug-in section, a guide section and a wire-pulling section. The guide section is a frustum structure with a front end diameter smaller than a rear end diameter. The plug-in section is coaxially integrally formed at the rear end of the guide section. The plug-in section can be tightly inserted into the inner side of the main shaft sleeve. The annular step surface formed between the rear end of the guide section and the plug-in section can be stopped on the axial end surface of the main shaft sleeve. The wire-pulling section is coaxially integrally formed at the front end of the guide section. The diameter of the wire-pulling section is consistent with the diameter of the front end of the guide section, and a convex arc surface is formed at the front end of the wire-pulling section.

Images