Electric bicycle seat height adjusting device

Abstract

The utility model relates to an electric bicycle seat height adjusting device which comprises a seat, a seat support and a bicycle body, the seat is fixedly connected with the top end of the seat support, an installation plate is arranged at the bottom end of the seat support and detachably connected to the bicycle body, and the bicycle body is fixedly installed on a bicycle body main body of an electric bicycle. A plurality of groups of fixing hole sites are formed in the vehicle body in the vertical direction, mounting hole sites matched with the fixing hole sites in position are formed in the mounting plate, fixing parts are arranged in the mounting hole sites, and the fixing parts are used for detachably fixing the mounting plate to the positions of different heights of the vehicle body. The height of the seat can be flexibly adjusted in a simple and accurate mode, the individual requirements of different riders are met, and the riding comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and in particular to an electric bicycle seat height adjustment device. Background Technology

[0002] Currently, most electric bicycle seats on the market have a fixed height or only offer simple adjustments with a limited range. Different riders have varying needs for seat height due to factors such as height and riding habits. Fixed-height seats cannot meet these diverse needs, potentially leading to uncomfortable riding postures and, with prolonged use, even causing fatigue and joint pain.

[0003] Although existing electric bicycles are equipped with adjustable seats, the method of adjusting the seat height is complicated, requires additional tools, takes a long time, and has low adjustment accuracy. In terms of adjustment accuracy, structural strength, and ease of use, it is difficult to meet users' needs for comfort in electric bicycles. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric bicycle seat height adjustment device, which can flexibly adjust the seat height in a simple and precise way to meet the personalized needs of different riders and improve riding comfort.

[0005] The above-mentioned utility model objective is achieved through the following technical solution:

[0006] An electric bicycle seat height adjustment device includes a seat, a seat bracket, and a frame. The seat is fixedly connected to the top of the seat bracket, and a mounting plate is provided at the bottom of the seat bracket. The mounting plate is detachably connected to the frame, and the frame is fixedly mounted on the main body of the electric bicycle. The frame has multiple sets of fixing holes along the vertical direction, and the mounting plate has mounting holes that match the positions of the fixing holes. Fixing members are provided in the mounting holes to detachably fix the mounting plate at different height positions on the frame.

[0007] The above technical solution enables multi-level height adjustment of electric bicycle seats, adapting to different heights and riding habits, allowing for convenient adjustment of seat height to achieve the most comfortable riding posture, improving riding comfort and safety, and enabling quick disassembly and maintenance through modular design.

[0008] As a further technical solution of this utility model: at least two sets of fixing holes are provided on the vehicle body, and each set of fixing holes is provided with multiple fixing holes, and the multiple fixing holes are not on the same horizontal plane.

[0009] Through the above technical solution, at least two sets of fixing holes enable two height adjustments. Multiple fixing holes make the connection between the mounting plate and the vehicle body more secure, able to withstand greater external forces and vibrations, and reduce seat swaying and displacement during riding. The multiple fixing holes in each set are not on the same horizontal plane, providing constraints in both the vertical and horizontal directions, increasing the connection rigidity between the seat bracket and the vehicle body, and improving the structural strength and stability of the adjustment device.

[0010] As a further technical solution of this utility model: the fixing hole penetrates through the vehicle body.

[0011] The above technical solution allows the fixing holes to penetrate the vehicle body, improving the fit between the mounting plate and the vehicle body and preventing seat tilting caused by installation tilt.

[0012] As a further technical solution of this utility model: the fastener includes a fastening screw and a locking nut. The fastening screw is inserted from one side of the mounting plate, passes through the mounting hole and a corresponding set of fixing holes on the vehicle body, and exits from the other side of the mounting plate. The fastening screw is fixed in conjunction with the locking nut, so as to realize the detachable connection between the seat bracket and the vehicle body at different height positions.

[0013] The above technical solution, through the combined use of fastening screws and anti-loosening nuts, can provide sufficient fastening force to ensure a firm connection between the seat frame and the vehicle body, making it less prone to loosening and falling off, thus improving riding safety. Furthermore, it is easy to disassemble, facilitating maintenance, replacement, or adjustment of the seat height and position, thereby improving ease of use.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. This utility model discloses an electric bicycle seat height adjustment device, which, by setting multiple sets of equally spaced fixing holes on the vehicle body and cooperating with the corresponding mounting holes of the mounting plate, allows users to select different height levels according to their height requirements, thereby meeting personalized riding needs.

[0016] 2. This utility model discloses an electric bicycle seat height adjustment device, which uses a fixed hole through the vehicle body and works in conjunction with a fastener to improve the structural stability of the seat height adjustment device and simplify the installation and maintenance process. Attached Figure Description

[0017] Figure 1 This is an exploded schematic diagram of Example 1.

[0018] Figure 2 This is a right view of the low-gear seat height adjustment device in Embodiment 1.

[0019] Figure 3 This is a right view of the high-end seat height adjustment device in Embodiment 1.

[0020] Figure label:

[0021] 1. Seat; 2. Seat bracket; 21. Mounting plate; 211. Mounting holes; 3. Body; 31. Fixing holes; 311. Fixing holes; 4. Fasteners; 41. Fastening screws; 42. Locking nuts. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example 1:

[0026] Reference Figure 1 This utility model discloses an electric bicycle seat height adjustment device, including a seat 1, a seat bracket 2, and a frame 3. The seat 1 is fixedly connected to the top of the seat bracket 2, and the bottom of the seat bracket 2 is provided with a mounting plate 21. The mounting plate 21 is detachably connected to the frame 3, and the frame 3 is fixedly installed on the main body of the electric bicycle.

[0027] The vehicle body 3 has two sets of fixing holes 31 along the vertical direction. The mounting plate 21 has mounting holes 211 that match the positions of the fixing holes 31. A fixing member 4 is provided in the mounting hole 211. The fixing member 4 is used to detachably fix the mounting plate 21 at different heights of the vehicle body 3.

[0028] Each set of fixing holes 31 has multiple fixing holes 311, and the fixing holes 311 at corresponding positions in any two sets of fixing holes 31 are equally spaced in the vertical direction. This design of equal vertical spacing between the fixing holes 311 makes seat height adjustment regular and predictable, allowing users to precisely adjust the seat height and avoiding errors and uncertainties during the adjustment process. For example, a vertical spacing of 10mm can meet the adjustment needs of children to adults with heights ranging from 140-190cm. With multiple sets of fixing holes 31, users can accurately raise or lower the seat by integer multiples of 10mm according to their needs. At the same time, this design simplifies the manufacturing process and installation procedure, reducing production costs and installation difficulty.

[0029] The multi-group, multi-hole design increases the range of seat height adjustments, providing users with more adjustment possibilities. Each group of fixing holes 31 has multiple fixing holes 311, making the connection between the mounting plate 21 and the vehicle body 3 more stable, able to withstand greater external forces and vibrations, and reducing seat swaying and displacement during riding. Moreover, in actual production, the number of groups of fixing holes 31 and the number of fixing holes 311 in each group can be flexibly adjusted according to different vehicle models and user needs.

[0030] refer to Figure 1 Each set of fixing holes 31 has multiple fixing holes 311. The multiple fixing holes 311 are not on the same horizontal plane. The multiple fixing holes 311 include one fixing hole 311 in the vertical direction and two fixing holes 311 in the inclined direction. The fixing holes 311 in each set of fixing holes 31 are staggered on the surface of the vehicle body 3, and the fixing holes 311 in the vertical direction and the fixing holes 311 in the inclined direction are not at the same horizontal height.

[0031] The single vertical fixing hole 311 and the two inclined fixing holes 311 form a three-dimensional support structure, which effectively disperses external forces and stresses, improving the structural strength and stability of the adjustment device. The vertical fixing hole 311 primarily provides vertical support for the connection between the seat bracket 2 and the vehicle body 3, ensuring the seat's vertical stability and reducing vertical swaying and displacement. The inclined fixing holes 311 mainly provide support forces different from those in the vertical direction, effectively dispersing and bearing horizontal forces, enhancing the seat's horizontal stability and torsional resistance.

[0032] During riding, both vertical pressure and horizontal torque are better distributed and absorbed through the staggered mounting holes 311. Furthermore, this design increases adjustability, allowing users to adjust not only the seat height.

[0033] The fixing holes 31 are symmetrically opened on both sides of the vehicle body 3; the center line connecting the fixing hole 311 in the left fixing hole 31 and the corresponding fixing hole 311 in the right fixing hole 31 is perpendicular to the vertical axis of the seat bracket 2.

[0034] The symmetrical hole design ensures that the seat bracket 2 maintains balanced force during installation, preventing seat tilting and wobbling caused by uneven force, thus improving riding comfort and stability. This design also facilitates the installation and removal of the fixing component 4. Users can pass the fastening screw 41 through the mounting hole 211 and fixing hole 31 from one side of the vehicle body 3, and then secure it with the anti-loosening nut 42 on the other side, making the operation more convenient.

[0035] The mounting holes 211 and fixing holes 31 correspond one-to-one. The design of size adaptation and position alignment ensures that the fastener 4 can pass smoothly through the mounting holes 211 and fixing holes 31, ensuring the accuracy and firmness of the installation, making the connection between the mounting plate 21 and the vehicle body 3 tighter, and reducing the possibility of loosening and shaking.

[0036] The fastener 4 includes a fastening screw 41 and a lock nut 42. The fastening screw 41 enters from one side of the mounting plate 21, passes through the mounting hole 211 and a corresponding set of fixing holes 31 on the vehicle body 3, and exits from the other side of the mounting plate 2. The fastening screw 41, in conjunction with the lock nut 42, secures the seat bracket 2 and the vehicle body 3, enabling a detachable connection at different heights. The combination of the fastening screw 41 and the lock nut 42 provides sufficient fastening force to ensure a firm connection between the seat bracket 2 and the vehicle body 3, preventing loosening and detachment. The use of the lock nut 42 effectively prevents the nut from loosening due to vibration or other reasons during riding, improving riding safety. Moreover, this detachable connection method facilitates user maintenance, replacement, or adjustment of the seat height and position.

[0037] The line connecting the center of the highest hole of the vertical mounting hole 211 and the center of the highest hole of the inclined mounting hole 211 forms an angle γ with the vertical axis of the vehicle body. The connection points between the seat 1 and the seat bracket 2, and between the seat bracket 2 and the vehicle body 3, all form the same inclined angle as γ, ensuring that the seat 1 maintains an inclined posture consistent with the direction of the center line. This inclined angle design, based on ergonomic principles, provides users with a more comfortable riding posture. Different γ angle settings are available to suit different users' riding habits and scenarios. For example, users who prefer an upright posture can choose a smaller γ angle; users who prefer a slightly reclined posture can choose a larger γ angle. In urban commuting scenarios, a γ angle of 15°–30° can reduce thigh pressure; in sports riding scenarios, a γ angle of 30°–45° facilitates optimization of the force application angle.

[0038] refer to Figure 1 and Figure 2 When the rider is short or needs a lower seat height, a lower adjustment setting can be selected. The specific operating steps are as follows:

[0039] First, prepare the tools, such as screwdrivers that match the fastener 4.

[0040] Next, remove the fastener 4, use a screwdriver to unscrew the anti-loosening nut 42, and remove the fastening screw 41 from the mounting hole 211 and the fixing hole 31.

[0041] Then adjust the seat height by moving the mounting plate 21 on the seat bracket 2 downwards, aligning the mounting holes 211 with a set of fixing holes 31 at a lower position on the vehicle body 3. During the alignment process, ensure that the mounting holes 211 and fixing holes 31 are aligned.

[0042] Finally, install the fastener 4, pass the fastening screw 41 through the mounting hole 211 and the corresponding set of fixing holes 31 in sequence, then screw the anti-loosening nut 42 on the other end of the fastening screw 41 and tighten it with a screwdriver to ensure that the mounting plate 21 is firmly connected to the vehicle body 3.

[0043] refer to Figure 1 and Figure 3 When the rider is taller or requires a higher seat height, the higher adjustment setting can be selected. The specific operating steps are as follows:

[0044] First, prepare the tools, including screwdrivers and other tools that match the fastener 4.

[0045] Then remove the fastener 4, use a screwdriver to unscrew the anti-loosening nut 42, and remove the fastening screw 41 from the mounting hole 211 and the fixing hole 31.

[0046] Next, adjust the seat height by moving the mounting plate 21 on the seat bracket 2 upwards, aligning the mounting hole 211 with a set of fixing holes 31 at a higher position on the vehicle body 3. Again, ensure that the mounting hole 211 is aligned with the fixing hole 31.

[0047] Finally, install the fastener 4, pass the fastening screw 41 through the mounting hole 211 and the corresponding set of fixing holes 31 in sequence, then screw the anti-loosening nut 42 on the other end of the fastening screw 41 and tighten it with a screwdriver to ensure that the mounting plate 21 is firmly connected to the vehicle body 3.

[0048] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electric bicycle seat height adjustment device, comprising a seat (1), characterized in that, It also includes a seat bracket (2) and a body (3). The seat (1) is fixedly connected to the top of the seat bracket (2). The bottom of the seat bracket (2) is provided with a mounting plate (21). The mounting plate (21) is detachably connected to the body (3). The body (3) is fixedly installed on the main body of the electric bicycle. The vehicle body (3) has multiple sets of fixing holes (31) in the vertical direction. The mounting plate (21) has mounting holes (211) that match the positions of the fixing holes (31). A fixing member (4) is provided in the mounting hole (211). The fixing member (4) is used to detachably fix the mounting plate (21) at different heights of the vehicle body (3).

2. The electric bicycle seat height adjustment device according to claim 1, characterized in that, At least two sets of fixing holes (31) are provided on the vehicle body (3), and each set of fixing holes (31) is provided with multiple fixing holes (311), and the multiple fixing holes (311) are not on the same horizontal plane.

3. The electric bicycle seat height adjustment device according to claim 1, characterized in that, The fixing hole (31) penetrates the vehicle body (3).

4. The electric bicycle seat height adjustment device according to claim 1, characterized in that, The fastener (4) includes a fastening screw (41) and a lock nut (42). The fastening screw (41) is inserted from one side of the mounting plate (21), passes through the mounting hole (211) and a corresponding set of fixing holes (31) on the vehicle body (3), and exits from the other side of the mounting plate (21). The fastening screw (41) is fixed in conjunction with the lock nut (42) to realize the detachable connection between the seat bracket (2) and the vehicle body (3) at different height positions.

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