A bicycle stem for facilitating handlebar adjustment

Abstract

The utility model relates to the technical field of bicycle, concretely to a bicycle handlebar stand convenient for handlebar adjustment, including front fork clamp and pressing plate, the outer wall rotationally connected with the link pipe of front fork clamp, the inner wall slidingly connected with the link rod of link pipe, one end of link rod is fixedly connected with extension block, the surface fixedly connected with handlebar clamp of extension block, the first bolt of handlebar clamp screw connection is slid through in the pressing plate, the screw rod is slid through in the front fork clamp, the circumference surface screw connection has the nut of screw rod, the outer wall fixedly connected with the fixed plate of front fork clamp, the surface slidingly has the sliding plate of fixed plate. The utility model, through setting link pipe, link rod and extension block etc. component, when many people share the same bicycle or rider needs to switch commuting, sports etc. different riding scene, can adjust the position and angle of handlebar according to the need, thereby can adapt to the diversified posture demand.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a bicycle stem that facilitates handlebar adjustment. Background Technology

[0002] A bicycle is a two-wheeled means of transportation propelled by human pedaling, serving multiple purposes including commuting, exercise, and leisure. The steering and control of a bicycle mainly consists of the front fork, handlebars, and stem. The front fork connects to the front wheel, and the bearings in the head tube assembly reduce steering resistance. The stem connects the handlebars and the front fork, and the handlebars are used for directional control.

[0003] Current bicycle stems are usually a one-piece structure, which cannot be flexibly adjusted according to the rider's needs. This is especially true when multiple people share the same bicycle or when riders need to switch between different riding scenarios such as commuting and sports, making it difficult to adapt to diverse posture requirements.

[0004] Therefore, a bicycle stem that is easy to adjust is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing bicycle stems, which are typically one-piece structures and cannot be flexibly adjusted according to the rider's needs, and to propose a bicycle stem that is easy to adjust.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bicycle stem that facilitates handlebar adjustment, comprising a fork clamp and a pressure plate, wherein a connecting tube is rotatably connected to the outer wall of the fork clamp, a connecting rod is slidably connected to the inner wall of the connecting tube, an extension block is fixedly connected to one end of the connecting rod, a handlebar clamp is fixedly connected to the surface of the extension block, a first bolt threadedly connected to the handlebar clamp is slidably passed through the pressure plate, a screw is slidably passed through the fork clamp, and a nut is threadedly connected to the circumferential surface of the screw.

[0007] The effect achieved by the above components is that, by setting up components such as connecting tubes, connecting rods and extension blocks, the position and angle of the handlebars can be adjusted as needed when multiple people share the same bicycle or when riders need to switch between different riding scenarios such as commuting and sports, thereby adapting to diverse posture requirements.

[0008] Preferably, a fixing plate is fixedly connected to the outer wall of the fork clamp, a sliding plate is slidably fitted onto the surface of the fixing plate, a bracket is fixedly connected to the surface of the sliding plate, the bracket abuts against the outer wall of the connecting tube, and a second bolt abutting against the surface of the fixing plate is threaded onto the inner thread of the sliding plate.

[0009] The effect achieved by the above components is as follows: push the slide plate along the fixed plate, so that the bracket fits against the outer wall of the connecting tube, then tighten the second bolt to restrict the position of the slide plate, and support the connecting tube with the help of the bracket, thereby supporting the handlebars.

[0010] Preferably, a limiting groove is formed on the surface of the fixing plate, the size of the limiting groove is adapted to the size of the second bolt, and the vertical cross section of the limiting groove is triangular.

[0011] The effect achieved by the above-mentioned components is that the limiting groove with a vertical cross-section in the shape of a triangle can effectively prevent the second bolt from sliding down.

[0012] Preferably, the surface of the connecting rod is provided with an insertion hole, and the insertion rod slides through the connecting tube, the size of the insertion rod being adapted to the size of the insertion hole.

[0013] The effect achieved by the above components is to limit the relative sliding between the connecting rod and the connecting tube by using the cooperation between the plug rod and the plug hole.

[0014] Preferably, the number of the insertion holes is several, and the several insertion holes are distributed in a linear array along the axial direction of the connecting rod.

[0015] The effect achieved by the above components is that by inserting the plug rod into the plug hole at different positions, the connecting rod can be restricted to different positions.

[0016] Preferably, a magnet is fixedly connected to one end of the insertion rod, and the magnet abuts against the connecting tube, which is made of iron.

[0017] The effect achieved by the above components is that the magnetic piece adheres to the surface of the iron connecting tube, preventing the plug from accidentally falling off.

[0018] Preferably, the vertical cross-section of the magnet sheet is arc-shaped.

[0019] The effect achieved by the above components is that the vertically curved magnet pieces can fit better with the connecting tube.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting up components such as connecting tubes, connecting rods and extension blocks, the position and angle of the handlebars can be adjusted as needed when multiple people share the same bicycle or when riders need to switch between different riding scenarios such as commuting and exercise, thereby adapting to diverse posture requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the connecting pipe of this utility model; Figure 3 This is a schematic diagram of the disassembled structure at the connecting rod of this utility model; Figure 4This is a structural schematic diagram of the fixing plate of this utility model.

[0022] Legend: 1. Fork clamp; 2. Connecting tube; 3. Connecting rod; 4. Extension block; 5. Handlebar clamp; 6. Pressure plate; 7. First bolt; 8. Screw; 9. Nut; 10. Fixing plate; 11. Slide plate; 12. Bracket; 13. Second bolt; 14. Insertion hole; 15. Insert rod; 16. Magnet piece; 17. Limiting groove. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] like Figures 1-4 As shown, this utility model provides a bicycle stem that facilitates handlebar adjustment, including a fork clamp 1 and a pressure plate 6. A connecting tube 2 is rotatably connected to the outer wall of the fork clamp 1, and a connecting rod 3 is slidably connected to the inner wall of the connecting tube 2. An extension block 4 is fixedly connected to one end of the connecting rod 3, and a handlebar clamp 5 is fixedly connected to the surface of the extension block 4. A first bolt 7, which is threadedly connected to the handlebar clamp 5, slides through the pressure plate 6. A screw 8 slides through the fork clamp 1, and a nut 9 is threadedly connected to the circumferential surface of the screw 8. By setting components such as the connecting tube 2, the connecting rod 3, and the extension block 4, the position and angle of the handlebars can be adjusted as needed when multiple people share the same bicycle or when riders need to switch between different riding scenarios such as commuting and sports, thereby adapting to diverse posture requirements.

[0026] like Figure 2 and Figure 4 As shown, a fixing plate 10 is fixedly connected to the outer wall of the fork clamp 1. A sliding plate 11 is slidably fitted onto the surface of the fixing plate 10. A bracket 12 is fixedly connected to the surface of the sliding plate 11. The bracket 12 abuts against the outer wall of the connecting tube 2. A second bolt 13 is threadedly connected to the inner thread of the sliding plate 11 and abuts against the surface of the fixing plate 10. The sliding plate 11 is pushed to slide along the fixing plate 10, so that the bracket 12 fits against the outer wall of the connecting tube 2. Then the second bolt 13 is tightened to restrict the position of the sliding plate 11. The connecting tube 2 is supported by the bracket 12, which in turn supports the handlebars. A limiting groove 17 is opened on the surface of the fixing plate 10. The size of the limiting groove 17 is adapted to the size of the second bolt 13. The vertical cross section of the limiting groove 17 is triangular. The limiting groove 17 with a triangular vertical cross section can effectively prevent the second bolt 13 from sliding down.

[0027] like Figures 1-3 As shown, the surface of the connecting rod 3 has a socket 14, and the connecting tube 2 has a sliding rod 15. The size of the plug 15 is adapted to the size of the socket 14. The relative sliding between the connecting rod 3 and the connecting tube 2 is restricted by the cooperation between the plug 15 and the socket 14. There are several sockets 14, which are arranged in a linear array along the axial direction of the connecting rod 3. By inserting the plug 15 into the sockets 14 at different positions, the connecting rod 3 can be restricted to different positions. A magnet 16 is fixedly connected to one end of the plug 15. The magnet 16 abuts against the connecting tube 2, which is made of iron. The magnet 16 is attracted to the surface of the iron connecting tube 2 to prevent the plug 15 from falling off accidentally. The vertical cross section of the magnet 16 is arc-shaped, which allows it to fit better with the connecting tube 2.

[0028] The overall working principle is as follows: When installing the stem, the frame clamp is placed on the outside of the fork steerer tube, the screw 8 is inserted and the nut 9 is tightened. The threaded engagement between the screw 8 and the nut 9 makes the inner wall of the frame clamp fit tightly against the fork steerer tube, thus fixing the stem to the fork. Then, the handlebars are placed on the inner wall of the handlebar clamp 5, the first bolt 7 is screwed in and tightened, and the handlebars are clamped by the cooperation of the pressure plate 6 and the handlebar clamp 5, completing the connection and fixation between the handlebars and the stem. When it is necessary to adjust the handlebar height and angle, loosen nut 9 to release the clamping force of the frame clamp on the front fork steerer tube. Rotate the connecting tube 2 to drive the handlebar to rotate around the axis of the front fork steerer tube until the handlebar angle is suitable for riding needs. At this time, push the slide plate 11 to slide along the fixed plate 10 so that the bracket 12 fits against the outer wall of the connecting tube 2. Screw in the second bolt 13 and make it embed into the triangular limiting groove 17 of the fixed plate 10. The slide plate 11 and the bracket 12 are fixed by the locking cooperation of the bolt and the limiting groove 17. The handlebar angle is kept stable by the support of the bracket 12 on the connecting tube 2. When adjusting the handlebar position, pull out the insert rod 15 to release the limiting relationship between the connecting rod 3 and the connecting tube 2. Push the connecting rod 3 to slide along the inner wall of the connecting tube 2, causing the handlebar to move horizontally. When the handlebar position meets the requirements, insert the insert rod 15 into the connecting tube 2 and into the corresponding insertion hole 14 of the connecting rod 3. The cooperation between the insert rod 15 and the insertion hole 14 restricts the relative sliding between the connecting rod 3 and the connecting tube 2. At the same time, the arc-shaped magnet 16 at one end of the insert rod 15 is attracted to the iron surface of the connecting tube 2 to prevent the insert rod 15 from accidentally falling off. After completing all adjustments, tighten the nut 9 and the first bolt 7 again to ensure that the connection between the frame clamp and the fork, and the handlebar clamp 5 and the handlebar are secure. At this time, the rider can control the handlebar to transmit torque to the fork through the stem, thereby turning the front wheel. During the ride, part of the rider's weight will press on the handlebar, thus ensuring that the connecting tube 2 is stably pressed against the bracket 12.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A bicycle stem that facilitates handlebar adjustment, characterized in that: The device includes a fork clamp (1) and a pressure plate (6). The outer wall of the fork clamp (1) is rotatably connected to a connecting tube (2). The inner wall of the connecting tube (2) is slidably connected to a connecting rod (3). One end of the connecting rod (3) is fixedly connected to an extension block (4). The surface of the extension block (4) is fixedly connected to a handlebar clamp (5). A first bolt (7) that is threadedly connected to the handlebar clamp (5) slides through the pressure plate (6). A screw (8) slides through the fork clamp (1). A nut (9) is threadedly connected to the circumferential surface of the screw (8).

2. The bicycle stem for easy handlebar adjustment according to claim 1, characterized in that: The outer wall of the fork clamp (1) is fixedly connected to a fixing plate (10), and a sliding plate (11) is slidably fitted on the surface of the fixing plate (10). A bracket (12) is fixedly connected to the surface of the sliding plate (11), and the bracket (12) abuts against the outer wall of the connecting tube (2). A second bolt (13) abuts against the surface of the fixing plate (10) is threadedly connected to the sliding plate (11).

3. A bicycle stem for easy handlebar adjustment according to claim 2, characterized in that: The surface of the fixing plate (10) is provided with a limiting groove (17), the size of the limiting groove (17) is adapted to the size of the second bolt (13), and the vertical cross section of the limiting groove (17) is triangular.

4. A bicycle stem for easy handlebar adjustment according to any one of claims 1-3, characterized in that: The surface of the connecting rod (3) is provided with a socket (14), and a plug (15) slides through the connecting tube (2). The size of the plug (15) is adapted to the size of the socket (14).

5. A bicycle stem for easy handlebar adjustment according to claim 4, characterized in that: The number of the insertion holes (14) is several, and the several insertion holes (14) are distributed in a linear array along the axial direction of the connecting rod (3).

6. A bicycle stem for easy handlebar adjustment according to claim 5, characterized in that: A magnet (16) is fixedly connected to one end of the insertion rod (15), and the magnet (16) abuts against the connecting tube (2), which is made of iron.

7. A bicycle stem for easy handlebar adjustment according to claim 6, characterized in that: The vertical cross-section of the magnet piece (16) is arc-shaped.

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