Bicycle seat height adjusting mechanism

Abstract

The utility model provides a bicycle seat height adjusting mechanism which comprises a seat cushion, a clamping seat is installed at the bottom end of the seat cushion, a lifting pipe is fixedly installed at the bottom end of the clamping seat, a limiting ring is fixed at the bottom end of the lifting pipe, and a bicycle frame vertical pipe is connected to the outer side of the lifting pipe in a sliding mode. A driving cylinder is rotationally connected between the lifting pipe and the frame vertical pipe, a through hole with the diameter equal to that of the lifting pipe is formed in the top end of the driving cylinder, and a through hole with the outer diameter equal to that of the frame vertical pipe is formed in the bottom end of the driving cylinder; an external thread is arranged on the outer side of the lifting pipe, and an internal thread matched with the external thread is formed in the through hole in the top end of the driving barrel. According to the bicycle saddle adjusting device, the lifting pipe is matched with the bicycle frame vertical pipe, under the action of the driving cylinder and the baffle ring, the height of the saddle can be flexibly and vertically adjusted according to the requirements of a rider, the problem that a traditional adjusting device is repeatedly adjusted is solved, and therefore the adjusting efficiency and the comfort degree of a human body in the using process are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle seats, and more specifically relates to a bicycle seat height adjustment mechanism. Background Art

[0002] A bicycle is also called a cycle or a bike. When riding, people sit on the seat and generate power by pedaling. Due to the different heights of riders, the height requirements for bicycle seats will also be different. Therefore, the seat height needs to be adjusted according to the needs of the rider.

[0003] The existing method for adjusting the height of a bicycle seat is to loosen the clamping ring, press the seat down or lift the seat, and adjust it to the appropriate position by feel. Then, tighten the clamping ring and do a test ride to determine the height that suits you. However, this method often does not achieve the desired height in one go. Moreover, loosening and tightening the clamping ring and raising and lowering the seat often increases wear on the clamping ring and seat, significantly reducing the service life of the seat. In view of this, the present invention aims to improve the existing structure and its shortcomings and provide a bicycle seat height adjustment mechanism in order to achieve a more practical and valuable purpose. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a bicycle seat height adjustment mechanism, which is achieved by the following specific technical means:

[0005] A bicycle seat height adjustment mechanism comprises a seat cushion, wherein the bottom end of the seat cushion is provided with a shock-absorbing spring; a clamping seat is installed at the bottom end of the seat cushion, and the clamping seat is fixed to the bottom end of the seat cushion by screws; a lifting tube is fixedly installed at the bottom end of the clamping seat, and a limiting ring is fixed to the bottom end of the lifting tube, and the outer side of the lifting tube is slidably connected to a frame riser, and the inner diameter of the frame riser is equal to the outer diameter of the limiting ring at the bottom end of the lifting tube; a driving cylinder is rotatably connected between the lifting tube and the frame riser, and the top end of the driving cylinder is provided with a through hole equal to the diameter of the lifting tube, and the bottom end of the driving cylinder is provided with a through hole equal to the outer diameter of the frame riser; the outer side of the lifting tube is provided with an external thread, and the top through hole of the driving cylinder is provided with an internal thread matching the external thread.

[0006] As a preferred technical solution of the present invention, the outer surface of the driving cylinder is provided with an anti-slip texture.

[0007] As a preferred technical solution of the present invention, an annular groove is provided at the bottom end of the driving cylinder, a limiting flange is provided at the top end of the frame riser, and the limiting flange is rotatably connected to the inside of the annular groove.

[0008] As an optimal technical solution of the present invention, the driving cylinder is provided with a retaining ring at the bottom end of the annular groove, the center of the retaining ring is provided with a through hole equal to the diameter of the frame riser, and the retaining ring is fixedly connected to the driving cylinder by fastening bolts.

[0009] As a preferred technical solution of the present invention, a rectangular groove is vertically opened inside the lifting tube, a fixing ring is installed on the inner bottom end of the frame riser by bolts, and a quadrangular prism matching the rectangular groove is vertically fixedly connected to the top end of the fixing ring, and the quadrangular prism is slidably connected inside the rectangular groove.

[0010] As a preferred technical solution of the present invention, a foldable telescopic cylinder cover is rotatably connected between the driving cylinder and the base, and the foldable telescopic cylinder cover is made of rubber.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model realizes that the height of the seat can be flexibly adjusted up and down according to the needs of the rider through the cooperation between the lifting tube and the frame riser, under the action of the driving cylinder and the retaining ring, thereby solving the problem of repeated adjustment of traditional adjustment devices, thereby improving the adjustment efficiency and the comfort of human body during use, and at the same time reducing the operation frequency, effectively extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the lifting tube of the utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the quadrangular prism and the fixing ring of the utility model.

[0016] Figure 4 It is a schematic cross-sectional view of the present utility model.

[0017] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0018] 1. Seat cushion; 2. Shock-absorbing spring; 3. Clamping seat; 4. Lifting tube; 5. Frame riser; 6. Driving cylinder; 7. Limiting ring; 8. Limiting flange; 9. Retaining ring; 10. Fixing ring; 11. Square prism; 12. Folding telescopic cylinder cover; 13. Fastening bolts. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] Example:

[0023] As attached Figure 1 To the attached Figure 4 As shown:

[0024] The utility model provides a bicycle seat height adjustment mechanism, including a seat cushion 1, a shock-absorbing spring 2 is provided at the bottom end of the seat cushion 1; a clamping seat 3 is installed at the bottom end of the seat cushion 1, and the clamping seat 3 is fixed to the bottom end of the seat cushion 1 by screws; a lifting tube 4 is fixedly installed at the bottom end of the clamping seat 3, and a limiting ring 7 is fixed at the bottom end of the lifting tube 4. The outer side of the lifting tube 4 is slidably connected to the frame riser 5, and the inner diameter of the frame riser 5 is equal to the outer diameter of the limiting ring 7 at the bottom end of the lifting tube 4; a driving cylinder 6 is rotatably connected between the lifting tube 4 and the frame riser 5, and the top end of the driving cylinder 6 is provided with a through hole equal to the diameter of the lifting tube 4, and the bottom end of the driving cylinder 6 is provided with a through hole equal to the outer diameter of the frame riser 5; the outer side of the lifting tube 4 is provided with an external thread, and the top through hole of the driving cylinder 6 is provided with an internal thread matching the external thread, so that the height of the seat cushion 1 can be flexibly adjusted up and down according to the needs of the rider, thereby improving the riding comfort of the rider.

[0025] The outer surface of the driving cylinder 6 is provided with anti-slip texture so as to enable stable rotation during adjustment.

[0026] Among them, an annular groove is provided at the bottom end of the driving cylinder 6, and a limiting flange 8 is provided at the top end of the frame riser 5, and the limiting flange 8 is rotatably connected to the inside of the annular groove, which facilitates the stable rotation of the driving cylinder 6 and prevents the driving cylinder 6 from falling off from the frame riser 5, thereby improving the safety of the device.

[0027] Among them, the driving cylinder 6 is provided with a retaining ring 9 at the bottom end of the annular groove, and a through hole with a diameter equal to that of the frame standpipe 5 is opened in the center of the retaining ring 9. The retaining ring 9 and the driving cylinder 6 are fixedly connected by fastening bolts 13, which makes it convenient to limit the limiting flange 8 through the retaining ring 9 while facilitating its rapid disassembly and assembly, thereby improving the ease of use of the device.

[0028] Among them, a rectangular groove is vertically opened inside the lifting tube 4, and a fixing ring 10 is installed on the inner bottom end of the frame vertical tube 5 by bolts. The top end of the fixing ring 10 is vertically fixedly connected with a quadrangular prism 11 that matches the rectangular groove, and the quadrangular prism 11 is slidably connected inside the rectangular groove, which is convenient for limiting the movement of the lifting tube 4 and preventing the lifting tube 4 from rotating during the adjustment process.

[0029] Among them, a foldable telescopic cylinder cover 12 is rotatably connected between the driving cylinder 6 and the base 3, and the foldable telescopic cylinder cover 12 is made of rubber material, so that the lifting tube 4 will not be invaded by dust and the outside world, and its use effect will not be affected.

[0030] The working principle of this embodiment is as follows:

[0031] When the height of the seat cushion 1 needs to be adjusted, the driving cylinder 6 rotatably connected to the frame stem 5 is first rotated to make the driving cylinder 6 rotate clockwise or counterclockwise. The internal thread of the driving cylinder 6 and the external thread of the lifting tube 4 cooperate with each other to make the lifting tube 4 move upward or downward. The quadrangular prism 11 bolted to the bottom end of the frame stem 5 can limit the movement of the lifting tube 4 to prevent the lifting tube 4 from rotating during the adjustment process, so that the height of the seat cushion 1 can be flexibly adjusted up and down according to the needs of the rider, thereby improving the adjustment efficiency and the comfort of the human body when using it.

[0032] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A bicycle seat height adjustment mechanism, comprising a seat cushion (1), wherein a shock-absorbing spring (2) is provided at the bottom end of the seat cushion (1); a clamping seat (3) is installed at the bottom end of the seat cushion (1), and the clamping seat (3) is fixed to the bottom end of the seat cushion (1) by screws; and characterized in that: A lifting tube (4) is fixedly mounted on the bottom end of the clamping seat (3), a limiting ring (7) is fixed on the bottom end of the lifting tube (4), and a frame riser (5) is slidably connected to the outside of the lifting tube (4), and the inner diameter of the frame riser (5) is equal to the outer diameter of the limiting ring (7) at the bottom end of the lifting tube (4); a driving cylinder (6) is rotatably connected between the lifting tube (4) and the frame riser (5), and a through hole with a diameter equal to that of the lifting tube (4) is provided at the top end of the driving cylinder (6), and a through hole with an outer diameter equal to that of the frame riser (5) is provided at the bottom end of the driving cylinder (6); an external thread is provided on the outside of the lifting tube (4), and an internal thread matching the external thread is provided at the through hole at the top end of the driving cylinder (6).

2. The bicycle seat height adjustment mechanism according to claim 1, wherein: The outer surface of the driving cylinder (6) is provided with anti-slip texture.

3. The bicycle seat height adjustment mechanism according to claim 1, wherein: An annular groove is provided at the bottom end of the driving cylinder (6), and a limiting flange (8) is provided at the top end of the frame standpipe (5), and the limiting flange (8) is rotatably connected inside the annular groove.

4. The bicycle seat height adjustment mechanism according to claim 3, wherein: The driving cylinder (6) is provided with a retaining ring (9) at the bottom end of the annular groove, and a through hole having a diameter equal to that of the frame standpipe (5) is opened at the center of the retaining ring (9), and the retaining ring (9) and the driving cylinder (6) are fixedly connected by fastening bolts (13).

5. The bicycle seat height adjustment mechanism according to claim 1, wherein: A rectangular groove is vertically opened inside the lifting tube (4), and a fixing ring (10) is installed on the inner bottom end of the frame standpipe (5) through bolts. The top end of the fixing ring (10) is vertically fixedly connected to a quadrangular prism (11) matching the rectangular groove, and the quadrangular prism (11) is slidably connected inside the rectangular groove.

6. The bicycle seat height adjustment mechanism according to claim 1, wherein: A foldable telescopic cylinder cover (12) is rotatably connected between the driving cylinder (6) and the clamping seat (3), and the foldable telescopic cylinder cover (12) is made of rubber.

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