Carbon fiber bicycle seat tube convenient to lift

Abstract

The utility model relates to the technical field of bicycle seat tube adjustment, in particular to a carbon fiber bicycle seat tube convenient to lift, and aims to solve the problems that in the prior art, when the height of a carbon fiber bicycle seat is adjusted, a wrench and other tools need to be used for loosening a bolt and a clamp, and the use is inconvenient. The carbon fiber bicycle seat tube comprises a base tube used for being connected with a bicycle frame, and the top of the base tube is fixedly connected with a tube head. Through finger pushing of the adjusting pull rod, the clamping plate can move towards the fixing disc to be pulled out of the clamping groove, so that the fixing disc and the adjusting pipe can move up and down in the base pipe together, the effect of adjusting the height of the adjusting pipe is achieved, and when the adjusting pipe supports the height of a bicycle saddle, the height of the bicycle saddle can be rapidly adjusted; and the adjusting pull rod is reset by pushing the adjusting pull rod with fingers, so that the clamping plate can be inserted into the clamping grooves in different positions, the adjusting pipe is fixed, and the whole adjusting process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle seat tube adjustment, and more specifically to a carbon fiber bicycle seat tube which is easy to lift. Background Art

[0002] A carbon fiber bicycle seat tube is a seat tube made of carbon fiber material. It is popular for its light weight, high strength and good shock absorption performance. Compared with traditional bicycle seat tubes, it is lighter, which helps to reduce the weight of the entire vehicle and improve riding efficiency. This is especially important when climbing or riding long distances. The carbon fiber seat tube can effectively absorb road vibrations, improve riding comfort and ensure stability.

[0003] Because bicycles equipped with carbon fiber bicycle seat tubes are mostly used for high-intensity riding competition bicycles, road bicycles, etc., in order to ensure safety during riding, carbon fiber bicycle seat tubes in the prior art are mostly fixed to the frame with bolts and clips. When adjusting the height, tools such as wrenches are needed to loosen the bolts and clips, which makes it less convenient to adjust the carbon fiber bicycle seat tube. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a carbon fiber bicycle seat tube that is easy to lift, so as to solve the technical problem in the prior art that when adjusting the height of the carbon fiber bicycle seat, tools such as wrenches need to be used to loosen bolts and clamps, resulting in low convenience in adjusting the carbon fiber bicycle seat tube.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a carbon fiber bicycle seat tube that is easy to lift, comprising a base tube for connecting a bicycle frame, the top of the base tube is fixedly connected with a tube head, the inner wall of the tube head is slidably connected with an adjustment tube used for connecting a bicycle seat, the bottom of the adjustment tube passes through the tube head and extends into the base tube and is fixedly connected with a fixing plate, the interior of the fixing plate is hollow, a plurality of clamping plates are arranged on the outer wall of the fixing plate, one end of the clamping plate penetrates the fixing plate to the inside and is slidably connected with the penetrated part, a plurality of clamping grooves are arranged on the inner wall of the base tube, one end of the clamping plate away from the fixing plate can be inserted into the clamping groove, the outer wall of the base tube is provided with a vertical groove connected with the interior thereof, and an adjustment mechanism for adjusting the position of the fixing plate is arranged in the fixing plate;

[0006] The adjusting mechanism includes an adjusting disk, which is arranged on the inner wall of the hollow part of the fixed disk. The adjusting disk is a plum blossom-shaped structure. A groove is provided on the outer wall of the adjusting disk. The openings of the grooves extend close to each other. One end of the clamping plate extending to the inside of the fixed disk is fixedly connected to a ball head rod. The ball head of the ball head rod extends into the groove, and the inner wall of the opening of the groove blocks the ball head of the ball head rod. An adjusting pull rod is fixedly connected to the top of the adjusting disk. A connecting groove connected to the inside of the fixed disk is provided on the outer wall of the fixed disk. The adjusting pull rod The other end of the lever passes through the connecting groove and the vertical groove in sequence and then extends to the outside of the base tube; by pushing the adjusting rod with fingers, the clamping plate can be moved toward the fixing plate and the clamping groove can be pulled out, so that the fixing plate can move up and down inside the base tube together with the adjusting tube, so as to achieve the effect of adjusting the height of the adjusting tube, so that the height of the adjusting tube can be quickly adjusted when supporting the height of the bicycle seat, and by pushing the adjusting rod with fingers to reset it, the clamping plate can be inserted into the clamping groove at different positions, so as to complete the fixing of the adjusting tube, so that the entire adjustment process is simple and convenient.

[0007] Preferably, a limiting groove is provided on the outer wall of the adjusting tube, and a limiting rod is fixedly connected to the inner wall of the tube head, and the other side of the limiting rod extends into the limiting groove; by inserting the limiting rod into the limiting groove, the limiting rod can block the inner wall of the limiting groove, so that the adjusting tube cannot rotate, thereby increasing the stability of the adjusting tube when supporting the bicycle seat.

[0008] Preferably, the end of the card plate away from the fixed plate extends in an arc shape to both sides; the end of the card plate away from the fixed plate extends to both sides, so that when it is inserted into the card slot, the contact area between it and the inner wall of the card slot is increased, thereby dispersing the load, achieving better load-bearing capacity, and reducing the pressure on a single supporting point, thereby increasing the stability of the card plate when it is inserted into the card slot to support the fixed plate.

[0009] Preferably, the adjusting disk is hinged to the inner wall of the hollow part of the fixing disk via a torsion spring; the adjusting disk can be reset under the torsion force of its own torsion spring, thereby eliminating the need to adjust the pull rod to reset it to complete the fixation of the fixing disk, thereby increasing the convenience of adjustment; and the torsion spring can prevent the adjusting pull rod from being accidentally twisted due to bumpy riding under its own torsion force, causing the card plate to be pulled out of the slot.

[0010] Preferably, one end of the adjusting rod extending to the outside of the base tube is fixedly connected with a finger plate; the finger plate is provided to facilitate the user to push the adjusting rod with fingers.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a base tube, a tube head, an adjustment tube, a fixed disk, a clamping plate, a clamping slot, a vertical slot and an adjustment mechanism, so that by pushing the adjustment rod with fingers, the clamping plate can be moved toward the fixed disk and the clamping slot can be pulled out, so that the fixed disk can move up and down inside the base tube together with the adjustment tube, so as to achieve the effect of adjusting the height of the adjustment tube, so that the height of the adjustment tube can be quickly adjusted when supporting the height of the bicycle seat, and by pushing the adjustment rod with fingers to reset it, the clamping plate can be inserted into the clamping slot at different positions, so as to complete the fixation of the adjustment tube, so that the entire adjustment process is simple and convenient.

[0013] 2. Compared with the transmission method of using a bracket to clamp the adjusting tube, the utility model uses a clamping plate inserted into a slot to directly support the fixed plate. The fixed plate directly supports the bottom of the adjusting tube, thereby increasing the stability of the adjusting tube when bearing weight, thereby increasing safety during riding.

[0014] 3. In the utility model, one end of the card plate away from the fixed disk extends to both sides, so that when it is inserted into the card slot, the contact area between it and the inner wall of the card slot is increased, the load is dispersed, better load-bearing capacity is achieved, and the pressure on a single supporting point is reduced, thereby increasing the stability of the card plate when it is inserted into the card slot to support the fixed disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the base tube in the utility model;

[0017] Figure 3 for Figure 2 A local enlarged view of point A in FIG.

[0018] Figure 4 It is a cross-sectional view of the fixed plate in the utility model;

[0019] Figure 5 It is a cross-sectional view of the adjusting disk in the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Base tube; 2. Tube head; 3. Adjusting tube; 4. Fixing plate; 5. Clamping plate; 6. Clamping slot; 7. Vertical slot; 8. Adjusting plate; 9. Pulling slot; 10. Ball head rod; 11. Adjusting pull rod; 12. Connecting slot; 13. Limiting slot; 14. Limiting rod; 15. Fingerboard. DETAILED DESCRIPTION

[0022] like Figures 1 to 5As shown, the utility model relates to: a carbon fiber bicycle seat tube that is easy to lift, comprising a base tube 1 for connecting a bicycle frame, a tube head 2 is fixedly connected to the top of the base tube 1, an adjusting tube 3 useful for connecting a bicycle seat is slidably connected to the inner wall of the tube head 2, the bottom of the adjusting tube 3 passes through the tube head 2 and extends into the base tube 1 and is fixedly connected to a fixing plate 4, the interior of the fixing plate 4 is hollow, a plurality of clamping plates 5 are arranged on the outer wall of the fixing plate 4, one end of the clamping plate 5 penetrates the fixing plate 4 to the inside thereof and is slidably connected to the penetrated part, a plurality of clamping grooves 6 are provided on the inner wall of the base tube 1, one end of the clamping plate 5 away from the fixing plate 4 can be inserted into the clamping groove 6, a vertical groove 7 connected to the interior of the base tube 1 is provided on the outer wall of the base tube 1, and an adjusting mechanism for adjusting the position of the fixing plate 4 is arranged in the fixing plate 4;

[0023] The adjusting mechanism includes an adjusting disk 8, which is arranged on the inner wall of the hollow part of the fixed disk 4. The adjusting disk 8 is a plum blossom-shaped structure. A groove 9 is provided on the outer wall of the adjusting disk 8. The openings of the grooves 9 extend close to each other. One end of the card plate 5 extending to the inside of the fixed disk 4 is fixedly connected to a ball head rod 10. The ball head of the ball head rod 10 extends into the groove 9, and the inner wall of the opening of the groove 9 blocks the ball head of the ball head rod 10. An adjusting rod 11 is fixedly connected to the top of the adjusting disk 8. A connecting groove 12 connected to the inside of the fixed disk 4 is provided on the outer wall of the fixed disk 4. The other end of the adjusting rod 11 passes through the connecting groove 12 in sequence. The through groove 12 and the vertical groove 7 extend to the outside of the base tube 1; by pushing the adjusting rod 11 with the finger, the clamping plate 5 can be moved toward the fixed disk 4 and the clamping groove 6 can be pulled out, so that the fixed disk 4 can move up and down inside the base tube 1 together with the adjusting tube 3, so as to achieve the effect of adjusting the height of the adjusting tube 3, so that the height of the adjusting tube 3 can be quickly adjusted when supporting the height of the bicycle seat, and by pushing the adjusting rod 11 with the finger to reset it, the clamping plate 5 can be inserted into the clamping groove 6 at different positions, so as to complete the fixation of the adjusting tube 3, so that the entire adjustment process is simple and convenient.

[0024] Furthermore, a limiting groove 13 is provided on the outer wall of the adjusting tube 3, and a limiting rod 14 is fixedly connected to the inner wall of the tube head 2, and the other side of the limiting rod 14 extends into the limiting groove 13; by inserting the limiting rod 14 into the limiting groove 13, the limiting rod 14 can block the inner wall of the limiting groove 13, so that the adjusting tube 3 cannot rotate, thereby increasing the stability of the adjusting tube 3 when supporting the bicycle seat.

[0025] Furthermore, one end of the card plate 5 away from the fixed disk 4 extends in an arc shape to both sides; the one end of the card plate 5 away from the fixed disk 4 extends to both sides, so that when it is inserted into the card slot 6, the contact area between it and the inner wall of the card slot 6 is increased, which disperses the load, achieves better load-bearing capacity, and reduces the pressure on a single supporting point, thereby increasing the stability of the card plate 5 when it is inserted into the card slot 6 to support the fixed disk 4.

[0026] Furthermore, the adjusting disk 8 is hinged to the inner wall of the hollow part of the fixing disk 4 through a torsion spring; the adjusting disk 8 can be reset under the torsion force of its own torsion spring, thereby eliminating the need to adjust the pull rod 11 to reset it to complete the fixation of the fixing disk 4, thereby increasing the convenience of adjustment, and the torsion spring can prevent the adjusting pull rod 11 from being accidentally twisted due to bumpy riding under its own torsion force, causing the card plate 5 to be pulled out of the card slot 6.

[0027] Furthermore, one end of the adjusting rod 11 extending to the outside of the base tube 1 is fixedly connected with a finger plate 15 ; the finger plate 15 is provided to facilitate the user to push the adjusting rod 11 with fingers.

[0028] Working principle: This embodiment provides a carbon fiber bicycle seat tube that is easy to lift. When in use, the base tube 1 and the adjustment tube 3 are used to connect the bicycle seat and the bicycle frame. When the height of the bicycle seat needs to be adjusted, the user pushes the adjustment rod 11 with his fingers, so that the adjustment rod 11 is twisted to drive the adjustment disk 8 to twist together. When the plum blossom-shaped adjustment disk 8 rotates, it will pull the ball head rod 10 through the inner wall after the groove 9 is extended, so that the ball head rod 10 pulls the card plate 5 to move toward the fixed disk 4, so that the card plate 5 is pulled out of the groove 6. At this time, the adjustment disk 8 can be adjusted by pulling the adjustment tube 3 is used to adjust the height of the adjusting tube 3, thereby completing the adjustment of the height of the bicycle seat. When the adjustment is completed, the user releases the adjusting pull rod 11, and the adjusting disk 8 begins to reset and twist under its own torque. During the reset and twisting process of the adjusting disk 8, its outer wall pushes the end of the card plate 5 extending to the inside of the fixing disk 4, so that the card plate 5 moves and is reinserted into the card slot 6, so that the card plate 5 is inserted into the card slot 6 to fix the fixing disk 4, and the fixing disk 4 supports the adjusting tube 3 from the bottom thereof, thereby completing the fixation of the adjusting tube 3.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A carbon fiber bicycle seat tube that is easy to lift, characterized in that: The invention comprises a base tube (1) for connecting a bicycle frame, wherein a tube head (2) is fixedly connected to the top of the base tube (1), an adjusting tube (3) for connecting a bicycle seat is slidably connected to the inner wall of the tube head (2), the bottom of the adjusting tube (3) passes through the tube head (2) and extends into the base tube (1) and is fixedly connected to a fixing plate (4), the interior of the fixing plate (4) is hollow, a plurality of clamping plates (5) are arranged on the outer wall of the fixing plate (4), one end of the clamping plate (5) penetrates the fixing plate (4) to the inside and is slidably connected to the penetrated part, a plurality of clamping grooves (6) are arranged on the inner wall of the base tube (1), one end of the clamping plate (5) away from the fixing plate (4) can be inserted into the clamping groove (6), a vertical groove (7) is arranged on the outer wall of the base tube (1) and is communicated with the interior thereof, and an adjusting mechanism for adjusting the position of the fixing plate (4) is arranged in the fixing plate (4).

2. The carbon fiber bicycle seat tube that is easy to lift according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting disk (8), wherein the adjusting disk (8) is arranged on the inner wall of the hollow part of the fixed disk (4), the adjusting disk (8) is a plum blossom-shaped structure, the outer wall of the adjusting disk (8) is provided with a groove (9), the openings of the groove (9) extend close to each other, the end of the clamping plate (5) extending to the inside of the fixed disk (4) is fixedly connected with a ball head rod (10), the ball head of the ball head rod (10) extends into the groove (9), and the inner wall of the opening of the groove (9) blocks the ball head of the ball head rod (10), the top of the adjusting disk (8) is fixedly connected with an adjusting pull rod (11), the outer wall of the fixed disk (4) is provided with a connecting groove (12) connected with the inside thereof, and the other end of the adjusting pull rod (11) passes through the connecting groove (12) and the vertical groove (7) in sequence and then extends to the outside of the base tube (1).

3. The carbon fiber bicycle seat tube that is easy to lift according to claim 1, characterized in that: The outer wall of the regulating tube (3) is provided with a limiting groove (13), the inner wall of the tube head (2) is fixedly connected to a limiting rod (14), and the other side of the limiting rod (14) extends into the limiting groove (13).

4. The carbon fiber bicycle seat tube that is easy to lift as claimed in claim 1, characterized in that: One end of the clamping plate (5) away from the fixing plate (4) extends in an arc shape towards both sides.

5. The carbon fiber bicycle seat tube that is easy to lift as claimed in claim 2, characterized in that: The adjusting disk (8) is hingedly connected to the inner wall of the hollow portion of the fixing disk (4) via a torsion spring.

6. The carbon fiber bicycle seat tube that is easy to lift as claimed in claim 2, characterized in that: One end of the adjusting rod (11) extending to the outside of the base tube (1) is fixedly connected to a finger plate (15).

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