Integrated handlebar

Abstract

The utility model discloses an integrated handlebar which comprises a handlebar body and a stem connected with the handlebar body. A continuous vertical pipe groove is formed in the handlebar stem, and a vertical pipe can be embedded in the vertical pipe groove; the continuous vertical pipe grooves are formed in the stem, the stem is fixed on the vertical pipe by embedding the vertical pipe into the vertical pipe grooves, the vertical pipe grooves and the vertical pipe have contact surfaces along the axial direction of the vertical pipe and also have contact surfaces along the radial direction of the vertical pipe, and the two contact surfaces are continuous and integrated, so that the stem has better rigidity; the stability of the handlebar body, the handlebar stem and the vertical pipe can be improved; in addition, from the appearance, the design of a gap in the handlebar vertical clamp is omitted, and the handlebar body can be more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle accessories, in particular to an integrated handlebar. Background Art

[0002] As a widely used means of transportation and sports equipment, continuous improvement of the design and manufacturing process of bicycles is crucial for enhancing the riding experience and safety. In the handlebar body system of a bicycle, the stem is a key component connecting the handlebar body and the front fork. It not only bears the role of transmitting the rider's force and controlling the direction, but also directly affects the stability and maneuverability of the vehicle.

[0003] The existing stem includes a stem clamp for clamping the seat tube. There is a gap on the stem clamp, and a through adjusting bolt is provided on the gap. By turning the adjusting bolt, the width of the gap is adjusted to fix the stem on the seat tube or remove the stem clamp from the seat tube; however, the existence of this gap may lead to an insufficiently tight connection between the stem and the seat tube, thereby affecting the handling stability of the vehicle. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an integrated handlebar that can improve the stability of the handlebar body, the stem, and the seat tube.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An integrated handlebar, including a handlebar body and a stem connected to the handlebar body;

[0007] A continuous seat tube groove is provided on the stem, and the seat tube can be embedded and installed in the seat tube groove.

[0008] For the integrated handlebar as described above, the stem further includes an extension portion extending towards the seat tube direction, and a side connection hole is provided on the extension portion.

[0009] For the integrated handlebar as described above, a wire routing port is provided on one side of the extension portion facing the handlebar body.

[0010] For the integrated handlebar as described above, the stem connection portion includes an upper surface, and an upper connection hole penetrating the upper surface is provided on the upper surface. The diameter of the upper connection hole is smaller than the diameter of the seat tube groove.

[0011] For the integrated handlebar as described above, the stem further includes a stem connection portion. One end of the stem connection portion is connected to the handlebar body, and the seat tube groove is provided at the other end of the stem connection portion.

[0012] The integrated handlebar as described above, wherein the handlebar body is a curved handlebar; the handlebar body includes a left parallel portion, a left connecting portion, a left lower curved portion, a right parallel portion, a right connecting portion, and a right lower curved portion;

[0013] The distances of the left parallel portion, the left connecting portion, and the left lower curved portion from the stem are arranged in order from near to far;

[0014] The wall thickness of the left connecting portion is less than the wall thicknesses of the left parallel portion and the left lower curved portion;

[0015] The distances of the right parallel portion, the right connecting portion, and the right lower curved portion from the stem are arranged in order from near to far;

[0016] The wall thickness of the right connecting portion is less than the wall thicknesses of the right parallel portion and the right lower curved portion.

[0017] The integrated handlebar as described above, wherein the left parallel portion and the right parallel portion are hollow and flat, and the left lower curved portion and the right lower curved portion are hollow and tubular.

[0018] The integrated handlebar as described above, wherein the bottom of the left parallel portion is provided with a left groove, and the bottom of the right parallel portion is provided with a right groove.

[0019] The integrated handlebar as described above, wherein the stem is made by a 3D forging integrated process.

[0020] The integrated handlebar as described above, wherein the handlebar body is made by a water injection special-shaped tube one-piece forming process.

[0021] The beneficial effects of the present utility model are:

[0022] A continuous vertical tube groove is provided on the stem. By embedding the vertical tube into the vertical tube groove, the stem is fixed on the vertical tube. The vertical tube groove and the vertical tube not only have a contact surface along the axial direction of the vertical tube, but also have a contact surface along the radial direction of the vertical tube, and these two contact surfaces are continuous and integral. The stem has better rigidity, and the stability of the handlebar body, the stem, and the vertical tube can be improved; and from the appearance, the design of the gap on the stem clamp is cancelled, making the handlebar body more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0025] Figure 2 is the second structural schematic diagram of the present utility model;

[0026] Figure 3It is the third structural schematic diagram of the present utility model;

[0027] The reference signs are as follows:

[0028] 1 - handlebar body, 11 - left parallel part, 111 - left groove, 12 - left connecting part, 13 - lower left bent part, 14 - right parallel part, 141 - right groove, 15 - right connecting part, 16 - lower right bent part, 2 - stem, 21 - vertical tube groove, 22 - extension part, 221 - side connection hole, 222 - wire routing opening, 24 - stem connecting part, 241 - upper surface, 2411 - upper connection hole. Detailed implementation manners

[0029] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with embodiments and the accompanying drawings to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to specific implementation situations. The various technical features in the present utility model can be combined with each other without conflict.

[0030] Referring to Figure 1 , an integrated handlebar, comprising a handlebar body 1 and a stem 2 connected to the handlebar body 1;

[0031] A continuous vertical tube groove 21 is provided on the stem 2, and the vertical tube can be embedded and installed in the vertical tube groove 21.

[0032] By providing a continuous vertical tube groove on the stem 2 and embedding the vertical tube into the vertical tube groove, the stem 2 is fixed on the vertical tube. The vertical tube groove and the vertical tube not only have a contact surface along the axial direction of the vertical tube, but also have a contact surface along the radial direction of the vertical tube, and these two contact surfaces are continuous and integral. The stem 2 has better rigidity, which can improve the stability of the handlebar body 1, the stem 2 and the vertical tube;

[0033] In the existing structure, in order to hide the gap on the stem 2 clamp and improve the ornamental value of the handlebar body 1 part, a fully enclosed stem 2 cover is generally added on the stem 2 clamp; this requires consumers to purchase accessories additionally; while in the present application, the handlebar body 1 refers to Figures 1 - 3 , by providing a vertical tube groove to replace the stem 2 clamp, there is no gap in appearance, which can make the handlebar body 1 more beautiful.

[0034] Further, the stem 2 further includes an extension portion 22 extending towards the direction of the vertical tube, and a side connection hole 221 is provided on the extension portion 22. The provision of the extension portion 22 increases the contact area between the stem 2 and the side of the vertical tube, enhancing the stability of the connection relationship between the stem 2 and the vertical tube. This not only reduces looseness caused by vibration or impact during cycling but also is more suitable for carrying heavier accessories or cycling on rough roads.

[0035] Further, the stem 2 further includes a stem connection portion 24. One end of the stem connection portion 24 is connected to the handlebar body 1, and the vertical tube groove 21 is provided at the other end of the stem connection portion 24. The provision of the stem connection portion 24 allows the cyclist to lean forward and stretch the upper body during cycling. Such a cycling posture can reduce wind resistance in bicycle races.

[0036] Specifically, the side connection hole 221 is provided on the side away from the handlebar body 1. Specifically, the side connection hole 221 can be embedded with a screw, and the integrated handlebar is fixed to the vertical tube using the screw.

[0037] Specifically, a wire routing opening 222 is provided on the side of the extension portion 22 facing the handlebar body 1. During use, accessories such as a brake cylinder can be installed on the integrated handlebar. Taking the brake cylinder as an example, in order to improve the cleanliness of the appearance of the bicycle, the pipeline connecting the brake cylinder to the disc brake is routed along the vertical tube. After the wire routing opening 222 is provided, the pipeline is routed along the stem connection portion 24, the wire routing opening 222, and the vertical tube in sequence, which can improve the cleanliness of the appearance of the bicycle.

[0038] Further, the stem connection portion 24 includes an upper surface 241, and an upper connection hole 2411 penetrating through the upper surface is provided on the upper surface 241. The upper connection hole 2411 allows a screw to penetrate from the upper end of the stem 2 to fix the vertical tube in the vertical tube groove 21. The diameter of the upper connection hole 2411 is smaller than the diameter of the vertical tube groove 21, which can increase the contact area with the vertical tube and enhance the connection strength between the stem 2 and the vertical tube.

[0039] Further, the handlebar body is a curved handlebar; the handlebar body 1 includes a left parallel portion 11, a left connection portion 12, a left lower curved portion 13, a right parallel portion 14, a right connection portion 15, and a right lower curved portion 16;

[0040] The left parallel portion 11, the left connection portion 12, and the left lower curved portion 13 are arranged in sequence at increasing distances from the stem 2;

[0041] The wall thickness of the left connection portion 12 is smaller than the wall thicknesses of the left parallel portion 11 and the left lower curved portion 13;

[0042] The right parallel part 14, the right connecting part 15, and the right lower bent part 16 are arranged in order of increasing distance from the handlebar stem 2.

[0043] The wall thickness of the right connecting part 15 is smaller than the wall thicknesses of the right parallel part 14 and the right lower bent part 16.

[0044] On both sides of the handlebar body 1, the connecting regions, namely the left part 12 and the right part 15, are prone to becoming key points of stress concentration and the starting positions of crack generation due to their sharp shape changes. To prevent this, these regions are specifically designed to be thinner so as to act as stress dissipation areas when stressed. When these two connecting regions undergo local elastic deformation under load, the force will be redirected to the left lower bent part 13 and the right lower bent part 16 of the handlebar body, thus reducing the risk of stress concentration in the handlebar body and significantly enhancing the durability and fatigue resistance of the handlebar body.

[0045] Specifically, the manufacturing process of the handlebar body 1 is to first draw the tube material to form a tube material with unequal wall thicknesses, and then perform a tube shrinking process to obtain a preformed variable-diameter tube material. Then, it is integrally formed by water injection into a special-shaped tube to meet the appearance requirements of the tube material. Finally, it is bent and shaped to conform to ergonomics, and has relatively excellent shock absorption ability.

[0046] Specifically, the left parallel part 11 and the right parallel part 14 are hollow and flat-shaped, and the left lower bent part 13 and the right lower bent part 16 are hollow and circular tube-shaped. The hollow settings of the left parallel part 11, the right parallel part 14, the left lower bent part 13, and the right lower bent part 16 can reduce the use of materials for manufacturing the handlebar body and reduce the gravity of the handlebar body; and the hollow structure reduces the local thickness of the material, making the stress more evenly distributed across the cross-section of the material and reducing the local stress peak.

[0047] Specifically, the bottom of the left parallel part 11 is provided with a left groove 111, and the bottom of the right parallel part 14 is provided with a right groove 141.

[0048] The left groove 111 and the right groove 141 can accommodate bicycle accessories on the handlebar body 1 and provide a route for the accessories to pass through, further enhancing the neatness of the appearance of the handlebar body 1.

[0049] More specifically, the handlebar stem 2 is made by a 3D forging one-piece process.

[0050] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An integrated handlebar, characterized in that: It comprises a handlebar body (1) and a stem (2) connected to the handlebar body (1); The stem (2) is provided with a continuous vertical pipe groove (21), and the vertical pipe groove (21) can be used for embedding and installing the vertical pipe; The handlebar body is a curved handlebar; the handlebar body (1) comprises a left parallel portion (11), a left connecting portion (12), a left lower curved portion (13), a right parallel portion (14), a right connecting portion (15), and a right lower curved portion (16); The distances of the left parallel portion (11), the left connecting portion (12) and the left lower curved portion (13) relative to the stem (2) are arranged in order from near to far; The right parallel portion (14), the right connecting portion (15) and the right lower curved portion (16) are arranged in order from near to far distances relative to the stem (2).

2. The one-piece handlebar according to claim 1, characterized in that: The stem (2) further comprises an extension portion (22) extending in the direction of the vertical tube, and a side connection hole (221) is provided on the extension portion (22).

3. The one-piece handlebar according to claim 2, characterized in that: A wiring opening (222) is provided on one side of the extension portion (22) facing the handlebar body (1).

4. The one-piece handlebar according to claim 1, characterized in that: The stem (2) further comprises a stem connection portion (24), one end of which is connected to the handlebar body (1), and the vertical tube groove (21) is arranged at the other end of the stem connection portion (24).

5. The one-piece handlebar according to claim 4, characterized in that: The vertical connecting portion (24) comprises an upper surface (241), and an upper connecting hole (2411) penetrating the upper surface is provided on the upper surface (241), and the diameter of the upper connecting hole (2411) is smaller than the diameter of the vertical pipe groove (21).

6. The one-piece handlebar according to claim 1, characterized in that: The wall thickness of the left connecting portion (12) is smaller than the wall thickness of the left parallel portion (11) and the left lower curved portion (13); The wall thickness of the right connecting portion (15) is smaller than the wall thickness of the right parallel portion (14) and the right lower curved portion (16).

7. The one-piece handlebar according to claim 6, characterized in that: The left parallel portion (11) and the right parallel portion (14) are hollow flat shapes, and the left lower curved portion (13) and the right lower curved portion (16) are hollow circular tube shapes.

8. The one-piece handlebar according to claim 7, characterized in that: The bottom of the left parallel part (11) is provided with a left groove (111), and the bottom of the right parallel part (14) is provided with a right groove (141).

9. The one-piece handlebar according to claim 1, characterized in that: The stem (2) is manufactured using a 3D forging integrated process.

10. The one-piece handlebar according to claim 1, characterized in that: The handlebar body (1) is manufactured by adopting a water-injected special-shaped tube integral molding process.

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