Stand head clamp
By designing a clamping base adapted to the handlebar head and an integrated grinding device, the problems of cumbersome operation and insufficient safety of traditional clamps are solved, realizing efficient and stable clamping and processing integration, and adapting to the precise assembly of handlebar heads of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO RUIHONGSEN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional handlebar fixing methods are cumbersome to operate, and uneven clamping force leads to insufficient safety, failing to meet the needs of lightweight, high-strength, and precise assembly for bicycles.
A clamping base was designed, including a first protrusion, a second protrusion and a third protrusion, which are adapted to the irregular structure of the handle head, and the rigidity is improved by the one-piece molding process. Combined with the grinding device, clamping and surface treatment are integrated.
It improves clamping stability and accuracy, reduces adjustment time, enhances versatility and processing efficiency, extends fixture life, and ensures stability under high-load processing.
Smart Images
Figure CN224239380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric bicycle accessories technology, specifically to a handlebar clamp. Background Technology
[0002] Stem clamps are key components used to secure bicycle stems to handlebars or fork steering tubes, and are widely used in bicycle assembly, repair, and testing. With the rapid development of the bicycle industry, especially the increasing demand for lightweight, high-strength, and precise assembly in mountain bikes, road bikes, and e-bikes, traditional stem clamping methods, such as bolt locking and simple clamps, can no longer meet the requirements for efficient, stable, and non-destructive clamping.
[0003] Early methods of fixing the stem head mainly relied on general-purpose clamps or hand tools, which had the following limitations:
[0004] The operation is cumbersome: it requires repeated adjustment of bolt pressure, which is inefficient and manual operation is prone to errors, affecting the calibration accuracy of handlebar angle or fork steering.
[0005] Insufficient safety: Uneven clamping force may cause the stem head to move slightly or slip off, which poses a potential hazard, especially in dynamic tests (such as vibration and impact). Utility Model Content
[0006] The purpose of this utility model is to provide a clamping head to solve one of the problems raised in the background art.
[0007] To achieve the above objectives, the technical solution of this utility model is as follows:
[0008] A handlebar clamp includes a clamp base. A first protrusion and a second protrusion are provided on one side of the clamp base, with a gap between the first protrusion and the second protrusion. The first protrusion is generally quadrilateral, and the second protrusion is generally semi-cylindrical. The shapes of the first protrusion and the second protrusion are respectively adapted to the handlebar. A third protrusion is provided below the first protrusion and the second protrusion of the clamp base, with a gap between the first protrusion and the third protrusion, and a gap between the second protrusion and the third protrusion.
[0009] Preferably, the third protrusion has a first inclined surface at the end away from the second protrusion.
[0010] Preferably, the first protrusion, the second protrusion, and the third protrusion are integrally formed with the clamp seat.
[0011] Preferably, a second inclined surface is provided at the top end of the clamp seat away from the second protrusion.
[0012] Preferably, it also includes a handle sleeve.
[0013] Preferably, a connecting seat is connected to the side of the clamp seat where the first protrusion is provided, and a grinding device is provided on the connecting seat.
[0014] Preferably, the grinding device includes a motor and a grinding head connected to the output end of the motor.
[0015] Compared with the prior art, the head clamp of this application has the following advantages:
[0016] This utility model uses the differentiated design of the first and second protrusions to accurately match the irregular structure of the handlebar head and improve clamping stability; the setting of the third protrusion forms a double-spaced space, which further enhances the multi-point positioning capability of the handlebar head and prevents displacement during processing.
[0017] The design of the first and second inclined surfaces facilitates quick fixture alignment and clamping, reducing adjustment time. The one-piece molding process eliminates weak points from welding or assembly, ensuring overall rigidity under high-load machining and extending fixture lifespan.
[0018] It can be paired with a stem sleeve to adapt to different sizes of stem heads, enhancing versatility; the integrated grinding device realizes the integration of clamping and surface treatment, reducing the need for secondary clamping of workpieces and improving processing accuracy and efficiency. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of a handle head clamp provided in an embodiment of this utility model;
[0020] Figure 2 A schematic diagram of the clamp seat, handlebar sleeve, and handlebar head provided in an embodiment of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the clamp seat provided in an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the handle head provided in an embodiment of the present utility model. Detailed Implementation
[0023] The following detailed description illustrates the specific implementation method:
[0024] The reference numerals in the accompanying drawings include: clamp seat 1, first protrusion 2, second protrusion 3, third protrusion 4, first inclined surface 5, second inclined surface 6, handlebar sleeve 7, connecting seat 8, motor 9, grinding head 10, handlebar head 11.
[0025] As attached Figure 1-4As shown in the figure, this embodiment illustrates a handlebar clamp, including a clamp base 1. A first protrusion 2 and a second protrusion 3 are provided on one side of the clamp base 1, with a gap between the first protrusion 2 and the second protrusion 3. The first protrusion 2 is generally quadrilateral, and the second protrusion 3 is generally semi-cylindrical. The shapes of the first protrusion 2 and the second protrusion 3 are respectively adapted to the handlebar 11. A third protrusion 4 is provided below the first protrusion 2 and the second protrusion 3, with a gap between the first protrusion 2 and the third protrusion 4, and a gap between the second protrusion 3 and the third protrusion 4.
[0026] The clamp base 1 is made of high-strength aluminum alloy or cast iron, with a rectangular structure on the main body and a clamping structure on one side. The first protrusion 2 is located on one side of the clamp base 1 and is in the shape of a quadrilateral block, used to mate with the quadrilateral hole of the handle head 11. The second protrusion 3 is spaced apart from the first protrusion 2 and is in the shape of a semi-cylindrical shape, used to match the arc-shaped part of the handle head 11. The third protrusion 4 is located below the first protrusion 2 and the second protrusion 3, forming a gap between them, thus forming a "three-point positioning" structure to enhance clamping stability.
[0027] Working process: Insert the quadrilateral hole of the upright head 11 into the first protrusion 2, and embed the arc-shaped part into the concave surface of the second protrusion 3, so that it simultaneously contacts the third protrusion 4 to form a stable fixation.
[0028] The third protrusion 4 has a first inclined surface 5 at the end furthest from the second protrusion 3. The first inclined surface 5 facilitates the workpiece sliding into the positioning position and reduces clamping time. The top of the fixture base 1 has a second inclined surface 6 at the end furthest from the second protrusion 3. The second inclined surface 6 is provided to reduce weight and avoid interfering with other processing equipment.
[0029] The first protrusion 2, the second protrusion 3, and the third protrusion 4 are integrally formed with the fixture base 1. Specifically, the first protrusion 2, the second protrusion 3, and the third protrusion 4 are integrally formed with the fixture base 1 by casting or 3D printing, which eliminates welding stress, improves overall rigidity, and is suitable for high-precision milling or drilling.
[0030] In this embodiment, the handlebar head 11 also includes a handlebar sleeve 7, the inner wall shape of which matches the handlebar head 11. It is fixed to the fixture seat 1 by a buckle or bolt to achieve quick change of shape and adapt to the processing of different models of handlebar heads 11.
[0031] A connecting seat 8 is connected to one side of the clamp base 1 where the first protrusion 2 is located. A grinding device is provided on the connecting seat 8. The grinding device includes a motor 9 and a grinding head 10 connected to the output end of the motor 9. The motor 9 drives the grinding head 10 to deburr or polish the clamped handle head 11, realizing integrated "clamping-grinding" processing.
[0032] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A clamp for holding a stand, characterized in that: The device includes a clamp base (1), on one side of which a first protrusion (2) and a second protrusion (3) are provided, with a gap between the first protrusion (2) and the second protrusion (3). The first protrusion (2) is quadrilateral in shape, and the second protrusion (3) is semi-cylindrical in shape. The shapes of the first protrusion (2) and the second protrusion (3) are respectively adapted to the handle head. The clamp base (1) has a third protrusion (4) below the first protrusion (2) and the second protrusion (3), with a gap between the first protrusion (2) and the third protrusion (4), and a gap between the second protrusion (3) and the third protrusion (4).
2. The handle clamp according to claim 1, characterized in that: The third protrusion (4) has a first inclined surface (5) at the end away from the second protrusion (3).
3. The clamping head according to claim 1, characterized in that: The first protrusion (2), the second protrusion (3) and the third protrusion (4) are integrally formed with the clamp seat (1).
4. A clamping head as described in claim 1, characterized in that: A second inclined surface (6) is provided at the top of the clamp seat (1) away from the second protrusion (3).
5. A clamping head as described in claim 4, characterized in that: It also includes the stand (7).
6. A clamping head as described in claim 1, characterized in that: The clamp seat (1) has a connecting seat (8) connected to one side of the first protrusion (2), and a grinding device is provided on the connecting seat (8).
7. A clamping head as described in claim 6, characterized in that: The grinding device includes a motor (9) and a grinding head (10) connected to the output end of the motor (9).