Super-hydrophobic corrosion-resistant aluminum alloy bicycle frame

Abstract

The utility model discloses a super-hydrophobic corrosion-resistant aluminum alloy bicycle frame, which relates to the field of bicycles and is characterized in that the super-hydrophobic corrosion-resistant aluminum alloy bicycle frame comprises a frame main body, the frame main body comprises a vertical pipe, a head pipe and a lower pipe, the lower pipe comprises a lower middle pipe and two lower side pipes, the lower middle pipe is detachably connected between the two lower side pipes, and the head pipe is connected with the lower middle pipe. A sleeve is detachably connected to the outer wall of the lower middle pipe, a buffering arc strip is arranged on the outer wall of the sleeve, and a plurality of buffering springs are installed between the sleeve and the buffering arc strip. When the lower pipe is impacted, the buffer arc strip is propped against the buffer arc strip and drives the buffer arc strip to move close to the lower pipe, the impact force can be dispersed through the buffer arc strip, the buffer arc strip extrudes the buffer spring in the process of moving close to the lower pipe, so that the buffer spring is compressed and deformed, and the buffer spring is compressed and deformed, so that the impact force is reduced. The impact force borne by an object when the object collides with the buffering arc strip can be reduced, and therefore the situation that the lower pipe is bent when collided can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of bicycles, and more specifically, to a superhydrophobic and corrosion-resistant aluminum alloy bicycle frame. Background Technology

[0002] A bicycle is a human-powered means of transportation, typically consisting of wheels, a frame, a seat, handlebars, and pedals. The frame, as the skeleton of the entire bicycle, largely determines and influences the correctness and comfort of the riding posture. The frame is the basic structural component of a bicycle, serving as its skeleton and main body, and other parts are also directly or indirectly mounted on the frame.

[0003] A bicycle frame typically includes a seat tube, bottom bracket, head tube, top tube, and down tube. However, existing frames are welded together, leaving the down tube exposed and close to the road surface during normal use. This makes the down tube more susceptible to impacts and damage. When the down tube is impacted, the middle part is prone to bending or scratches, which reduces the overall lifespan of the frame.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a superhydrophobic and corrosion-resistant aluminum alloy bicycle frame.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a superhydrophobic and corrosion-resistant aluminum alloy bicycle frame, comprising a frame body, the frame body comprising a stem tube, a head tube, and a down tube, the down tube comprising a lower center tube and two lower side tubes, the lower center tube being detachably connected between the two lower side tubes, the two lower side tubes being respectively fixedly connected to the outer walls of the stem tube and the head tube, the outer wall of the lower center tube being detachably connected to a sleeve, the outer wall of the sleeve being provided with a buffer arc strip, and multiple buffer springs being installed between the sleeve and the buffer arc strip, one end of the buffer spring being detachably connected to the outer wall of the sleeve.

[0007] Preferably, the sleeve includes two half-tubes, one end of the buffer spring is detachably connected to the outer wall of the half-tube away from the lower middle tube, both outer walls of the lower middle tube are provided with slots, the inner wall of the half-tube is fixedly connected with a locking block for locking into the slot, the bottom of the two half-tubes is fixedly connected with an installation strip, the two installation strips fit together and both are threaded with a wing screw.

[0008] Preferably, a mounting block is fixedly connected to one end of the buffer spring near the half tube, and a mounting groove is provided on the outer wall of the half tube for the mounting block to be inserted. A magnetic strip is fixedly connected to the inner wall of the mounting groove for attracting the mounting block. The mounting block is made of iron.

[0009] Preferably, a plurality of buffer pads are fixedly connected to the outer wall of the half tube near the buffer arc strip. The buffer pads are used to abut against the side wall of the buffer arc strip near the half tube, and there is a gap between the buffer pads and the buffer spring.

[0010] Preferably, the buffer arc strip is fixedly connected to a plurality of reflective strips on the outer wall away from the lower middle tube.

[0011] Preferably, both ends of the lower middle tube are fixedly connected to a fixing lug 1, and the end of the lower side tube near the lower middle tube is fixedly connected to a fixing lug 2 corresponding to the fixing lug 1. Both the fixing lug 1 and the fixing lug 2 are threadedly connected to bolts.

[0012] In summary, this utility model has the following beneficial effects: This solution divides the lower tube into a lower middle tube and two lower side tubes, and installs a sleeve and a buffer arc strip on the outer wall of the lower middle tube. The sleeve reduces the exposed part of the lower tube, and a buffer spring is installed between the sleeve and the buffer arc strip. When the lower tube is impacted, it first comes into contact with the buffer arc strip, which moves closer to the lower tube. The buffer arc strip disperses the impact force. As the buffer arc strip moves closer to the lower tube, it compresses the buffer spring, causing it to deform. This deformation reduces the impact force when an object impacts the buffer arc strip, thus reducing the likelihood of the lower tube bending upon impact. If the buffer arc strip is damaged, it can be removed from the sleeve and replaced. If the impact force on the lower tube is too great, it will impact the lower middle tube, causing it to bend. In this case, by removing and replacing the lower middle tube, it is not necessary to replace the entire frame when the lower tube bends upon impact. Attached Figure Description

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is an exploded view of the middle half-pipe and the lower pipe of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the middle half-tube of this utility model;

[0016] Figure 4 for Figure 3 Enlarged schematic diagram of part A;

[0017] Figure 5 This is a schematic diagram of the structure of the buffer arc strip in this utility model.

[0018] In the diagram: 1. Riser; 2. Head pipe; 3. Lower pipe; 4. Lower middle pipe; 5. Lower side pipe; 6. Sleeve; 7. Buffer arc strip; 8. Buffer spring; 9. Half pipe; 10. Slot; 11. Slot block; 12. Mounting strip; 13. Wing screw; 14. Mounting block; 15. Mounting groove; 16. Magnetic strip; 17. Buffer pad; 18. Reflective strip; 19. Fixing ear one; 20. Fixing ear two; 21. Bolt. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example:

[0021] A superhydrophobic and corrosion-resistant aluminum alloy bicycle frame, such as Figures 1 to 5 As shown, the bicycle includes a frame body made of aluminum alloy. The frame body includes a seat tube 1, a head tube 2, a down tube 3, a top tube, and a bottom bracket. The down tube 3 includes a lower center tube 4 and two lower side tubes 5. The length of the lower center tube 4 is greater than the length of the lower side tubes 5. The lower center tube 4 is detachably connected between the two lower side tubes 5. The two lower side tubes 5 are welded to the outer walls of the seat tube 1 and the head tube 2, respectively. One lower half tube 9 is welded to the outer wall of the seat tube 1, and the other lower half tube 9 is welded to the outer wall of the head tube 2. A sleeve 6 is detachably connected to the outer wall of the lower center tube 4. A buffer arc strip 7 is provided on the outer wall of the sleeve 6. Multiple buffer springs 8 are installed between the sleeve 6 and the buffer arc strip 7. One end of the buffer spring 8 is detachably connected to the outer wall of the sleeve 6, and the other end of the buffer spring 8 is bonded to the side wall of the buffer arc strip 7 near the sleeve 6. The sleeve 6 includes two half tubes 9, which are arranged opposite each other. The buffer spring 8 is detachably connected to the outer wall of the half tube 9 away from the lower middle tube 4. The outer walls of both sides of the lower middle tube 4 are provided with slots 10. The inner wall of the half tube 9 is bonded with a locking block 11 for locking into the slot 10. The bottom of the two half tubes 9 is bonded with an installation strip 12. The two installation strips 12 fit together and are both threaded with wing screws 13. The two installation strips 12 are provided with a threaded hole for threaded connection of the wing screws 13. Multiple buffer pads 17 are bonded to the outer wall of the half tube 9 near the buffer arc strip 7. The buffer pads 17 are made of rubber material. Three buffer pads 17 are bonded to one half tube 9. The buffer pads 17 are used to abut against the side wall of the buffer arc strip 7 near the half tube 9. There is a gap between the buffer pads 17 and the buffer spring 8. Multiple reflective strips 18 are bonded to the outer wall of the buffer arc strip 7 away from the lower middle tube 4.

[0022] The two half-tubes 9 and the buffer arc strips 7 on the half-tubes 9 are respectively installed on the lower middle tube 4, so that the inner walls of the two half-tubes 9 abut against the outer wall of the lower middle tube 4. When the inner walls of the half-tubes 9 abut against the outer walls of the lower middle tube 4, the locking blocks 11 on the inner walls of the half-tubes 9 will be locked into the locking grooves 10 on the outer walls of the lower middle tube 4. This allows the threaded holes on the mounting strips 12 at the bottom of the two half-tubes 9 to be aligned and connected to each other. The locking blocks 11 locking into the locking grooves 10 achieve a pre-fixing effect. Then, the wing screws 13 are respectively installed in the threaded holes on the two mounting strips 12, so that the sleeve 6 can be installed on the outer wall of the lower middle tube 4. The locking blocks 11 locking into the locking grooves 10 prevent the half-tubes 9 from sliding and shifting on the lower middle tube 4. When the bicycle is riding on some gravel roads, because the lower tube 3 is set close to the road, the two half-tubes 9 cover the lower middle tube 4 to resist the impact of gravel on the lower middle tube 4.

[0023] When the lower tube 3 is impacted by an object, because the length of the lower middle tube 4 is greater than the length of the lower side tube 5, and the lower middle tube 4 is located between the two lower side tubes 5, the object is more likely to collide with the lower middle tube 4. At this time, through the buffer arc strip 7 set on the outer wall of the lower middle tube 4, when the object hits the lower middle tube 4, the object first impacts the buffer arc strip 7 away from the outer wall of the lower middle tube 4. The buffer arc strip 7 can disperse the impact force of the object. During the process of the object hitting the buffer arc strip 7, it will cause the buffer arc strip 7 to move closer to the lower middle tube 4. During the movement of the buffer arc strip 7 closer to the lower middle tube 4, it will compress the buffer spring 8, causing the buffer spring 8 to undergo compression deformation. The compression deformation of the buffer spring 8 can reduce the impact force when the object hits the buffer arc strip 7, thus achieving a buffering effect. When the buffer arc strip 7 continues to move closer to the lower middle tube 4 and the buffer spring 8 continues to move closer to the lower middle tube 4, the buffer spring 8 will continue to move closer to the lower middle tube 4. During the compression process, the side wall of the buffer arc strip 7 near the lower center tube 4 will abut against multiple buffer pads 17, causing the buffer pads 17 to be compressed and deformed, further reducing the impact force when the object hits the buffer arc strip 7, thus protecting the lower center tube 4 and reducing the bending of the lower tube 3 when impacted. When the buffer arc strip 7 is damaged, it can be removed and replaced from the half tube 9. If the impact force on the lower tube 3 is too great and hits the lower center tube 4, causing the lower center tube 4 to bend, the lower center tube 4 can be removed and replaced without replacing the entire frame body. The reflective strip 18 has the function of reflecting light, allowing riders to reflect the surrounding light when riding at night, which serves as a warning to pedestrians and drivers, improving riding safety. Aluminum alloy has the characteristics of corrosion resistance, which can improve the service life of the frame body.

[0024] A mounting block 14 is attached to one end of the buffer spring 8 near the half-tube 9. The outer wall of the half-tube 9 has a mounting groove 15 for the mounting block 14 to be inserted. Multiple magnetic strips 16 are attached to the inner wall of the mounting groove 15. The magnetic strips 16 are used to attract the mounting block 14. The mounting block 14 is made of iron. When the buffer arc strip 7 is normally installed on the half-tube 9, the mounting block 14 is accommodated in the mounting groove 15, and the side wall of the mounting block 14 is attracted to the magnetic strips 16 on the inner wall of the mounting groove 15. When only the buffer arc strip 7 is damaged by repeated impacts and needs to be replaced, the buffer arc strip 7 is disassembled and moved away from the lower middle tube 4 for disassembly. When the buffer arc strip 7 moves, it drives the buffer spring 8 and the mounting block 14 to move. At this time, the mounting block 14 gradually detaches from the mounting groove 15, and the mounting block 14 gradually stops attracting the magnetic strips 16. Thus, the buffer arc strip 7 can be removed from the half-tube 9 for replacement of the buffer arc strip 7 without having to replace the half-tube 9.

[0025] Both ends of the lower center tube 4 are welded with fixing lug 19. The end of the lower side tube 5 near the lower center tube 4 is welded with fixing lug 20 corresponding to fixing lug 19. Fixing lug 19 and fixing lug 20 are threadedly connected with bolts 21. Both fixing lug 19 and fixing lug 20 have threaded holes 2 for bolt 21 connection. When the lower tube 3 is in normal use, the lower center tube 4 is installed between the two lower side tubes 5, and the bolts 21 are respectively installed in the threaded holes 2 on fixing lug 19 and fixing lug 20. When the lower center tube 4 is bent or damaged and needs to be replaced, the bolts 21 are removed to make it disengage from the threaded holes 2 on fixing lug 19 and fixing lug 20 respectively. Then, by removing the lower center tube 4, fixing lug 19 is not in contact with fixing lug 20, so that the lower center tube 4 can be easily disassembled and replaced without replacing the entire frame body.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A superhydrophobic and corrosion-resistant aluminum alloy bicycle frame, comprising a frame body, wherein the frame body includes a seat tube (1), a head tube (2), and a down tube (3), characterized in that: The lower pipe (3) includes a lower middle pipe (4) and two lower side pipes (5). The lower middle pipe (4) is detachably connected between the two lower side pipes (5). The two lower side pipes (5) are respectively fixedly connected to the outer walls of the riser (1) and the head pipe (2). The outer wall of the lower middle pipe (4) is detachably connected to a sleeve (6). The outer wall of the sleeve (6) is provided with a buffer arc strip (7). Multiple buffer springs (8) are installed between the sleeve (6) and the buffer arc strip (7). One end of the buffer spring (8) is detachably connected to the outer wall of the sleeve (6).

2. The superhydrophobic and corrosion-resistant aluminum alloy bicycle frame according to claim 1, characterized in that: The sleeve (6) includes two half tubes (9). One end of the buffer spring (8) is detachably connected to the outer wall of the half tube (9) away from the lower middle tube (4). The outer walls on both sides of the lower middle tube (4) are provided with slots (10). The inner wall of the half tube (9) is fixedly connected with a locking block (11) for locking into the slot (10). The bottom of the two half tubes (9) is fixedly connected with an installation strip (12). The two installation strips (12) fit together and are both threaded with a wing screw (13).

3. The superhydrophobic and corrosion-resistant aluminum alloy bicycle frame according to claim 2, characterized in that: The buffer spring (8) is fixedly connected to a mounting block (14) at one end near the half tube (9). The outer wall of the half tube (9) is provided with a mounting groove (15) for the mounting block (14) to be inserted. A magnetic strip (16) is fixedly connected to the inner wall of the mounting groove (15). The magnetic strip (16) is used to attract the mounting block (14). The mounting block (14) is made of metal iron.

4. The superhydrophobic and corrosion-resistant aluminum alloy bicycle frame according to claim 2, characterized in that: Multiple buffer pads (17) are fixedly connected to the outer wall of the half tube (9) near the buffer arc strip (7). The buffer pads (17) are used to abut against the side wall of the buffer arc strip (7) near the half tube (9). There is a gap between the buffer pads (17) and the buffer spring (8).

5. The superhydrophobic and corrosion-resistant aluminum alloy bicycle frame according to claim 1, characterized in that: Multiple reflective strips (18) are fixedly connected to the outer wall of the buffer arc strip (7) away from the lower middle tube (4).

6. The superhydrophobic and corrosion-resistant aluminum alloy bicycle frame according to claim 2, characterized in that: Both ends of the lower middle tube (4) are fixedly connected to a first fixing lug (19), and the end of the lower side tube (5) near the lower middle tube (4) is fixedly connected to a second fixing lug (20) corresponding to the first fixing lug (19). Both the first fixing lug (19) and the second fixing lug (20) are threadedly connected to bolts (21).

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