Aluminum alloy bicycle tube connection structure

Abstract

This utility model belongs to the field of bicycle tube connection technology, and particularly relates to a connection structure for aluminum alloy bicycle tubes that is resistant to electrolytic corrosion. It includes a first connecting seat and a second connecting seat, each with an aluminum alloy tube at one opposite end. A connecting tube is fixedly sleeved onto one end of the second connecting seat. The surface of the connecting tube is symmetrically provided with fixing rings, and an annular rubber ring is fixedly connected to the opposite side of each fixing ring. This utility model firstly achieves a quick initial connection between the first and second connecting seats through a limiting mechanism, simplifying operation. After the initial connection, the second connecting seat is rotated to engage the arc-shaped fitting plate with the arc-shaped clamping plate. Then, the arc-shaped clamping plate and the arc-shaped fitting plate are connected as a whole by fastening bolts, ultimately forming a strong and integrated structure that can withstand greater external forces, enhancing the stability of the connection and ensuring high structural strength of the aluminum alloy tube after connection.

Description

Technical Field

[0001] This utility model relates to the field of bicycle tube connection technology, and in particular to a connection structure for aluminum alloy bicycle tubes that is resistant to electrolytic corrosion. Background Technology

[0002] An anti-electrolytic corrosion aluminum alloy bicycle tube connection structure is a device used to connect aluminum alloy bicycle tubes and prevent them from undergoing electrolytic corrosion. It uses sealing elements such as rubber sealing rings and sealant to seal the connection points of the tubes, preventing corrosive media such as moisture and electrolytes from entering the connection gaps, thereby disrupting the conditions for electrolytic corrosion, blocking the current path, and preventing electrolytic corrosion from occurring.

[0003] Traditional connection structures are inadequate in terms of connection stability and overall structural strength, making them unable to withstand significant external forces. Furthermore, they are insufficient in preventing electrolytic corrosion, failing to effectively prevent the transfer of electrons and the intrusion of external corrosive media, thus accelerating the corrosion process and affecting riding safety. Based on this, an electrolytic corrosion resistant aluminum alloy bicycle tube connection structure is proposed for improvement. Utility Model Content

[0004] In view of the aforementioned problems of poor connection stability and insufficient protection against electrolytic corrosion, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An electrolytic corrosion resistant aluminum alloy bicycle tube connection structure includes a first connecting seat and a second connecting seat. Each of the first and second connecting seats has an aluminum alloy tube at one opposite end. A connecting tube is fixedly sleeved on one end of the second connecting seat. Fixed rings are symmetrically arranged on the surface of the connecting tube. An annular rubber ring is fixedly connected to the opposite side of the fixed ring. The first connecting seat includes a limiting mechanism for fixing the tube. The first connecting seat has symmetrically arranged transmission grooves inside. A knob is provided above the first connecting seat. A bidirectional lead screw is fixedly connected to the bottom end of the knob. The bottom end of the bidirectional lead screw passes through the top of the first connecting seat and extends to the inner wall of the transmission groove below. Both ends of the bidirectional lead screw are threaded with sleeves. A movable plate is fixedly connected to one side of the sleeve. The movable plate is slidably connected to the inner wall of the transmission groove. A locking rod is fixedly connected to the bottom end of the movable plate. The bottom end of the locking rod passes through the inner wall of the transmission groove and extends to the inner groove of the annular rubber ring.

[0006] As an improved technical solution, annular blocks are fixedly sleeved on the surfaces of both the first and second connecting seats. An arc-shaped clamping plate is symmetrically provided on one side of the annular block on the surface of the first connecting seat, and an arc-shaped fitting plate is symmetrically provided on one side of the annular block on the surface of the second connecting seat.

[0007] As an improved technical solution, the inner wall of the arc-shaped clamping plate is symmetrically provided with arc-shaped rubber pads, and the upper and lower ends of the arc-shaped fitting plate are respectively in contact with the arc-shaped rubber pads on the inner wall of the arc-shaped clamping plate.

[0008] As an improved technical solution, the inner groove of the arc-shaped interlocking plate is provided with fastening bolts, and both the upper and lower ends of the fastening bolts are threaded to the inside of the arc-shaped clamping plate.

[0009] As an improved technical solution, a first annular rubber pad is fixedly installed at one end of the first connecting seat, and a plurality of annular protrusions are provided on one side of the first annular rubber pad.

[0010] As an improved technical solution, a second annular rubber pad is fixedly installed at one end of the second connector near the connecting pipe, and a number of grooves adapted to the annular protrusion of the first annular rubber pad are opened on one side of the second annular rubber pad.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are: 1. This utility model firstly achieves the initial docking between the first connecting seat and the second connecting seat quickly through the setting of the limiting mechanism. The operation is simple. After the initial docking, the second connecting seat is rotated to make the arc-shaped fitting plate cooperate with the arc-shaped clamping plate. Then, the arc-shaped clamping plate and the arc-shaped fitting plate are connected into one body by fastening bolts, so that the first connecting seat and the second connecting seat finally form a solid whole that can withstand greater external forces, enhances the stability of the connection, and ensures that the aluminum alloy pipe fitting has high structural strength after connection.

[0012] 2. This utility model isolates the first connecting seat, the second connecting seat, the aluminum alloy pipe and other components by setting up annular rubber rings, arc-shaped rubber pads, first annular rubber pads and second annular rubber pads, thereby disrupting the circuit conditions for electrolytic corrosion, preventing the transfer of electrons, and thus preventing the occurrence of electrolytic corrosion. At the same time, it effectively prevents the intrusion of external corrosive media and provides additional protection for the pipe fittings. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 for Figure 3 A magnified structural diagram at point B in the middle.

[0014] Explanation of reference numerals in the attached figures: 1. First connecting seat; 11. Transmission groove; 2. Second connecting seat; 21. Connecting pipe; 22. Fixing ring; 23. Annular rubber ring; 3. Aluminum alloy tube; 4. Limiting mechanism; 41. Knob; 42. Two-way lead screw; 43. Screw sleeve; 44. Moving plate; 45. Clamping rod; 5. Annular block; 51. Arc-shaped clamping plate; 52. Arc-shaped fitting plate; 53. Arc-shaped rubber pad; 54. Fastening bolt; 6. First annular rubber pad; 7. Second annular rubber pad. Detailed Implementation

[0015] 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.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0018] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0019] like Figure 1 and Figure 5As shown in the figure, this embodiment provides an anti-electrolytic corrosion aluminum alloy bicycle tube connection structure, including a first connecting seat 1 and a second connecting seat 2. Each of the first connecting seat 1 and the second connecting seat 2 is provided with an aluminum alloy tube 3 at one opposite end. A connecting tube 21 is fixedly sleeved on one end of the second connecting seat 2. A fixing ring 22 is symmetrically provided on the surface of the connecting tube 21. An annular rubber ring 23 is fixedly connected to the opposite side of the fixing ring 22. The first connecting seat 1 includes a limiting mechanism 4 for fixing the tube. The first connecting seat 1 has symmetrically opened transmission grooves 11 inside. A knob 41 is provided above the first connecting seat 1. A bidirectional lead screw 42 is fixedly connected to the bottom end of the knob 41. The bottom end of the bidirectional lead screw 42 passes through the top end of the first connecting seat 1 and extends to the inner wall of the lower transmission groove 11. Both ends of the bidirectional lead screw 42 are threadedly connected to a screw sleeve 43. A movable plate 44 is fixedly connected to one side of the screw sleeve 43. The movable plate 44 is slidably connected to the inner wall of the transmission groove 11. A locking rod 45 is fixedly connected to the bottom end of the movable plate 44. The bottom end of the locking rod 45 passes through the inner wall of the transmission groove 11 and extends to the inner groove of the annular rubber ring 23.

[0020] Specifically, when it is necessary to connect the first connecting seat 1 and the second connecting seat 2, first insert the connecting tube 21 into the first connecting seat 1, so that the fixing ring 22 and the annular rubber ring 23 enter the interior of the first connecting seat 1; Next, turn the knob 41, which drives the double-acting screw 42 to rotate. The double-acting screw 42 drives the threaded sleeves 43 at both ends to move in opposite directions. The threaded sleeves 43 drive the moving plate 44 to slide in the transmission groove 11. The moving plate 44 then drives the locking rod 45 to move, so that the bottom end of the locking rod 45 is inserted into the groove inside the annular rubber ring 23, thus achieving the initial fixation of the connecting pipe 21. This completes the initial connection of the first connecting seat 1 and the second connecting seat 2. The operation is simple and the fixing effect is reliable.

[0021] like Figure 1 and Figure 5 As shown in the following embodiment, in a further embodiment, an annular block 5 is fixedly sleeved on the surface of both the first connecting seat 1 and the second connecting seat 2. An arc-shaped clamping plate 51 is symmetrically provided on one side of the annular block 5 on the surface of the first connecting seat 1, and an arc-shaped fitting plate 52 is symmetrically provided on one side of the annular block 5 on the surface of the second connecting seat 2. The inner wall of the arc-shaped clamping plate 51 is symmetrically provided with arc-shaped rubber pads 53, and the upper and lower ends of the arc-shaped fitting plate 52 are in contact with the arc-shaped rubber pads 53 on the inner wall of the arc-shaped clamping plate 51 respectively. The inner groove of the arc-shaped interlocking plate 52 is provided with fastening bolts 54, and both the upper and lower ends of the fastening bolts 54 are threaded to the inside of the arc-shaped clamping plate 51.

[0022] Specifically, when the first connecting seat 1 and the second connecting seat 2 complete the initial docking, the annular blocks 5 on their surfaces are aligned synchronously. Then, the second connecting seat 2 is rotated so that it drives the arc-shaped clamping plate 51 to rotate through the annular blocks 5. This causes the arc-shaped fitting plate 52 to rotate to the inner wall of the arc-shaped clamping plate 51, and its upper and lower ends come into contact with the arc-shaped rubber pad 53. The arc-shaped rubber pad 53 reduces the wear caused by the rigid contact of the components and at the same time lays the foundation for sealing and corrosion prevention. After the internal threaded hole of the arc-shaped clamping plate 51 is aligned with the internal groove of the arc-shaped fitting plate 52, the fastening bolt 54 is tightened. The fastening bolt 54 connects the arc-shaped clamping plate 51 and the arc-shaped fitting plate 52 into one, thereby realizing the final connection between the first connecting seat 1 and the second connecting seat 2, further enhancing the stability of the connection and ensuring that the aluminum alloy tube 3 has high structural strength after connection.

[0023] like Figure 1 and Figure 5 As shown in the previous embodiment, a first annular rubber pad 6 is fixedly installed at one end of the first connecting seat 1, and a plurality of annular protrusions are provided on one side of the first annular rubber pad 6. The second connecting seat 2 is fixedly installed with a second annular rubber pad 7 at one end near the connecting tube 21. The second annular rubber pad 7 has several grooves on one side that are adapted to the annular protrusion of the first annular rubber pad 6.

[0024] Specifically, when the first connecting seat 1 and the second connecting seat 2 approach each other, the annular protrusion on the first annular rubber pad 6 is precisely aligned with the groove of the second annular rubber pad 7, forming a preliminary fitting and positioning. As the connecting tube 21 is inserted into the first connecting seat 1, the first annular rubber pad 6 and the second annular rubber pad 7 are subjected to axial compression, and the annular protrusion is pressed into the groove, forming a multi-seal structure. This effectively prevents corrosive media such as moisture and electrolyte solutions from penetrating into the aluminum alloy tube 3, reducing the probability of electrolytic corrosion and extending the service life of bicycle fittings.

[0025] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An anti-electrolytic corrosion aluminum alloy bicycle pipe connection structure comprising a first connecting seat (1) and a second connecting seat (2), characterized in that: The first connecting seat (1) and the second connecting seat (2) are each provided with an aluminum alloy tube (3) at opposite ends. The second connecting seat (2) is fixedly sleeved with a connecting tube (21) at one end. The surface of the connecting tube (21) is symmetrically provided with a fixing ring (22). The opposite side of the fixing ring (22) is fixedly connected with an annular rubber ring (23). The first connecting seat (1) includes a limiting mechanism (4) for fixing the tube. The first connecting seat (1) has symmetrically opened transmission grooves (11) inside. The first connecting seat (1) has a knob (41) above it. The bottom end of the knob (41) is fixedly connected to a two-way screw (42). The bottom end of the two-way screw (42) passes through the top of the first connecting seat (1) and extends to the inner wall of the transmission groove (11) below. Both ends of the two-way screw (42) are threadedly connected to a screw sleeve (43). A moving plate (44) is fixedly connected to one side of the screw sleeve (43). The moving plate (44) is slidably connected to the inner wall of the transmission groove (11). The bottom end of the moving plate (44) is fixedly connected to a locking rod (45). The bottom end of the locking rod (45) passes through the inner wall of the transmission groove (11) and extends to the inner groove of the annular rubber ring (23).

2. A galvanic corrosion resistant aluminum alloy bicycle tube joint structure according to claim 1, characterized in that: Both the first connecting seat (1) and the second connecting seat (2) are fixedly fitted with annular blocks (5). An arc-shaped clamping plate (51) is symmetrically provided on one side of the annular block (5) on the surface of the first connecting seat (1), and an arc-shaped fitting plate (52) is symmetrically provided on one side of the annular block (5) on the surface of the second connecting seat (2).

3. A galvanically corrosion-protected aluminum alloy bicycle tube joint structure according to claim 2, characterized in that: The inner wall of the arc-shaped clamping plate (51) is symmetrically provided with arc-shaped rubber pads (53), and the upper and lower ends of the arc-shaped fitting plate (52) are in contact with the arc-shaped rubber pads (53) on the inner wall of the arc-shaped clamping plate (51).

4. A galvanically corrosion-protected aluminum alloy bicycle tube joint structure according to claim 3, characterized in that: The arc-shaped interlocking plate (52) has a groove with fastening bolts (54), and both ends of the fastening bolts (54) are threaded to the inside of the arc-shaped clamping plate (51).

5. The electrolytic corrosion resistant aluminum alloy bicycle tube connection structure according to claim 1, characterized in that: The first connecting seat (1) has a first annular rubber pad (6) fixedly installed at one end, and the first annular rubber pad (6) has several annular protrusions on one side.

6. The electrolytic corrosion resistant aluminum alloy bicycle tube connection structure according to claim 1, characterized in that: The second connecting seat (2) is fixedly installed with a second annular rubber pad (7) at one end near the connecting tube (21). The second annular rubber pad (7) has several grooves on one side that are adapted to the annular protrusion of the first annular rubber pad (6).

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