Handle stem structure

Abstract

The utility model discloses a stem structure which comprises a stem sleeve, a stem body and a stem front cover, a stem mounting hole is arranged in the stem sleeve, a through groove is arranged in the stem body, a clearance groove is arranged at the rear end of the stem body, a first pipe clamping portion and a second pipe clamping portion are formed at the rear end of the stem body, and a first arc-shaped groove is arranged at the front end of the stem body. The stem front cover is provided with a second arc-shaped groove, and a handlebar clamping hole is formed between the first arc-shaped groove and the second arc-shaped groove. The handlebar stem structure has the advantages of being simple and compact in structure, convenient to disassemble and assemble and good in use convenience, and the service life can be effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bicycle parts technology, specifically to a handlebar stem structure. Background Technology

[0002] As people's living standards continue to improve, cycling, as an aerobic fitness activity, has been widely used for exercise, leisure, entertainment, and social activities, and has been integrated into people's lives. Existing bicycle stems generally achieve axial and circumferential locking between the stem tube and the fork steerer tube by inserting or fitting the stem tube from above. However, the cables of external components such as lights and horns are exposed to the outside. After being exposed to sun and rain for a period of time, the cable sheath is prone to aging and damage, leading to the failure of the corresponding components, which has certain limitations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a handlebar structure that is simple and compact, easy to assemble and disassemble, convenient to use, and can effectively extend its service life.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A stem structure includes a riser sleeve, a stem body, and a stem front cover. The riser sleeve has a riser mounting hole, the stem body has a through groove, the rear end of the stem body has a clearance groove and forms a first tube clamp and a second tube clamp, the front end of the stem body has a first arc-shaped groove, the stem front cover has a second arc-shaped groove, and a handlebar locking hole is formed between the first arc-shaped groove and the second arc-shaped groove.

[0006] As a further improvement to the above technical solution:

[0007] A first fastener is inserted between the first tube clamp and the second tube clamp to adjust the clamping degree of the rear end of the stem body.

[0008] A second fastener is provided between the lower side of the front cover of the stem and the stem body, and a snap-fit ​​structure is provided between the upper side of the front cover of the stem and the stem body.

[0009] The buckle structure includes a buckle protrusion on the stem body and a buckle groove on the stem front cover, wherein the buckle protrusion and the buckle groove are buckled together.

[0010] A connector is provided on the lower side of the vertical tube sleeve, and the connector has several sets of wire holes.

[0011] The stem body is provided with a third fastener for connecting to the vertical tube.

[0012] An aluminum ring is fixedly connected to the lower end of the vertical tube sleeve.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] The stem structure of this utility model includes a stem sleeve, a stem body, and a stem front cover. A handlebar locking hole is formed between the stem front cover and the stem body for inserting the handlebar. The stem mounting hole in the stem sleeve and the first and second tube clamps on the stem body are used to insert the stem. By providing a through groove in the stem body, the power cables of the lights, horn, and control signal cables on the handlebar can be passed through the through groove, so that the cables between the handlebar and the stem are hidden inside the stem structure, making the appearance simpler and more beautiful, effectively extending the service life, and having the advantages of simple and compact structure, easy disassembly and assembly, and good ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the upright structure.

[0016] Figure 2 This is an exploded view of the upright structure.

[0017] Figure 3 A structural diagram showing the rear view angle of the main body.

[0018] Figure 4 This is a cross-sectional structural diagram of the upright structure.

[0019] Legend:

[0020] 1. Stem sleeve; 101. Stem mounting hole; 2. Stem body; 201. Through groove; 202. Clearance groove; 203. First tube clamp; 204. Second tube clamp; 205. First arc-shaped groove; 3. Stem front cover; 301. Second arc-shaped groove; 4. Handlebar locking hole; 5. First fastener; 6. Second fastener; 7. Buckle structure; 701. Buckle protrusion; 702. Buckle groove; 8. Connector; 801. Cable hole; 9. Third fastener; 10. Aluminum ring. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 4As shown, the stem structure of this embodiment includes a vertical tube sleeve 1, a stem body 2, and a stem front cover 3. The vertical tube sleeve 1 is provided with a vertical tube mounting hole 101. The stem body 2 is provided with a through groove 201. The rear end of the stem body 2 is provided with a clearance groove 202 and forms a first tube clamp 203 and a second tube clamp 204. The front end of the stem body 2 is provided with a first arc-shaped groove 205. The stem front cover 3 is provided with a second arc-shaped groove 301. A handlebar locking hole 4 is formed between the first arc-shaped groove 205 and the second arc-shaped groove 301. The stem structure includes a stem sleeve 1, a stem body 2, and a stem front cover 3. A handlebar locking hole 4 is formed between the stem front cover 3 and the stem body 2 for inserting the handlebar. The stem mounting hole 101 in the stem sleeve 1 and the first tube clamp 203 and the second tube clamp 204 on the stem body 2 are used to insert the stem. By providing a through groove 201 in the stem body 2, the power wires of the lights and horns, as well as the control signal wires on the handlebars, can be passed through the through groove 201, so that the cables between the handlebars and the stem are hidden inside the stem structure, making the appearance simpler and more beautiful, effectively extending the service life, and having the advantages of simple and compact structure, easy disassembly and assembly, and good ease of use.

[0023] Preferably, a first fastener 5 is provided between the first tube clamp 203 and the second tube clamp 204 to adjust the clamping degree of the rear end of the stem body 2. Specifically, the first fastener 5 is preferably a screw, and the first tube clamp 203 and the second tube clamp 204 are connected by screws. The clamping degree of the stem body 2 can be adjusted by loosening or tightening the screws, which has the advantages of convenient assembly and disassembly, low cost and high reliability.

[0024] Preferably, a second fastener 6 is provided between the lower side of the front cover 3 and the stem body 2, and a snap-fit ​​structure 7 is provided between the upper side of the front cover 3 and the stem body 2. Specifically, the second fastener 6 is preferably a screw, and the front cover 3 and the stem body 2 are connected by screws. During assembly, the upper side of the front cover 3 is first snapped onto the stem body 2, which enables the threaded hole on the lower side of the front cover 3 to be quickly aligned with the threaded hole on the stem body 2, thereby improving assembly efficiency.

[0025] Preferably, the buckle structure 7 includes a buckle protrusion 701 on the stem body 2 and a buckle groove 702 on the stem front cover 3. The buckle protrusion 701 and the buckle groove 702 are buckled together, which has the advantages of simple structure and convenient and quick assembly and disassembly.

[0026] Preferably, a connector 8 is provided on the lower side of the vertical tube sleeve 1, and the connector 8 has several sets of wire holes 801. In this embodiment, the handlebar brake cable can be threaded into the wire holes 801, so that the brake cable between the handlebar and the vertical tube can be arranged neatly and orderly, with a simple and beautiful appearance.

[0027] Preferably, the stem body 2 is provided with a third fastener 9 for connecting with the vertical tube. Specifically, the third fastener 9 is preferably a screw, and the stem body 2 and the vertical tube are connected by screws to further improve the stability of the stem structure on the vertical tube.

[0028] Preferably, an aluminum ring 10 is fixedly connected to the lower end of the vertical sleeve 1.

[0029] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A handle structure, characterized in that, The device includes a vertical tube sleeve (1), a stem body (2), and a stem front cover (3). The vertical tube sleeve (1) has a vertical tube mounting hole (101), the stem body (2) has a through groove (201), the rear end of the stem body (2) has a clearance groove (202) and forms a first tube clamp (203) and a second tube clamp (204), the front end of the stem body (2) has a first arc-shaped groove (205), the stem front cover (3) has a second arc-shaped groove (301), and a handlebar locking hole (4) is formed between the first arc-shaped groove (205) and the second arc-shaped groove (301).

2. The handle structure according to claim 1, characterized in that, A first fastener (5) is provided between the first tube clamp (203) and the second tube clamp (204) to adjust the clamping degree of the rear end of the stem body (2).

3. The handle structure according to claim 1, characterized in that, A second fastener (6) is provided between the lower side of the front cover (3) and the main body (2) of the stem, and a buckle structure (7) is provided between the upper side of the front cover (3) and the main body (2) of the stem.

4. The handlebar structure according to claim 3, characterized in that, The buckle structure (7) includes a buckle protrusion (701) on the stem body (2) and a buckle groove (702) on the stem front cover (3), and the buckle protrusion (701) and the buckle groove (702) are buckled together.

5. The handle structure according to claim 1, characterized in that, The lower side of the vertical sleeve (1) is provided with a connector (8), and the connector (8) is provided with several sets of wire holes (801).

6. The handle structure according to claim 1, characterized in that, The stem body (2) is provided with a third fastener (9) for connecting with the vertical tube.

7. The handlebar structure according to claim 1, characterized in that, An aluminum ring (10) is fixedly connected to the lower end of the vertical tube sleeve (1).

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