Handlebar and electric vehicle

Abstract

The handlebar comprises a handlebar transverse pipe, a handlebar connecting piece and a threaded rod piece, a mounting hole channel penetrating through the side wall of the handlebar transverse pipe is formed in the handlebar transverse pipe, and the threaded rod piece penetrates through the mounting hole channel to be in threaded connection with the handlebar connecting piece, so that the handlebar transverse pipe is fixed to a limiting structure of the handlebar connecting piece; due to the fact that the threaded rod piece and the handlebar transverse pipe are crossed in the axial direction, the threaded rod piece plays a role in fixing the handlebar transverse pipe and meanwhile conducts rotation limiting on the handlebar transverse pipe, and the situation that the handlebar transverse pipe rotates around the axis of the handlebar transverse pipe can be effectively avoided. And knurling treatment needs to be carried out on the connecting part of the handlebar transverse pipe to prevent the handlebar transverse pipe from rotating relative to the handlebar upper gland and the handlebar lower gland, only the mounting hole channel penetrating through the side wall of the connecting part needs to be formed in the connecting part of the handlebar transverse pipe, the machining process of the handlebar transverse pipe is simplified, and the production cost is reduced. The electric vehicle provided by the invention comprises the handlebar, and has all the characteristics of the handlebar, which are not repeated here.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, in particular to a handlebar and an electric vehicle. Background Art

[0002] The electric vehicle steering handle, referred to as "handlebar", is a combination of pipes and plates welded or assembled. The handlebar is generally integrated with the front suspension system by bolts. It is used to manipulate the front wheel of the electric vehicle and control the electric vehicle to travel in a certain direction.

[0003] like Figure 1 As shown, the existing handlebar includes a cross tube 1, a handlebar upper pressure cover 2, a handlebar lower pressure cover 3, a stem tube 4 and a reinforcement sheet 5. The handlebar lower pressure cover 3 and the reinforcement sheet 5 are welded with the stem tube 4 to form a stem tube assembly. The stem tube assembly and the cross tube 1 are placed on a positioning tool, and the handlebar upper pressure cover 2 is placed above the cross tube 1. The upper pressure cover 2 and the cross tube 1 are connected to the stem tube assembly by bolts to form a handlebar. The handlebar is mounted on the front fork assembly 6 through the stem tube 4, and then bolts and nuts are installed in the through holes on the reinforcement sheet 5 to achieve the connection and fixation of the stem tube 4 and the front fork assembly 6.

[0004] In the above-mentioned existing handlebar structure, the connection part of the cross tube 1 needs knurling to prevent the cross tube 1 from rotating relative to the handlebar upper cover 2 and the handlebar lower cover 3. The processing technology is complicated, and the stem tube 4 needs to be flattened, punched twice, arc-punched, and deburred, resulting in high production costs. Summary of the invention

[0005] The purpose of the present invention is to provide a new handlebar and an electric vehicle to solve the problems of complex processing technology and high production cost of the above-mentioned existing handlebars.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a handlebar, comprising:

[0008] A handlebar cross tube is provided with a mounting hole penetrating through its side wall;

[0009] A handlebar connector, used to be connected to the front fork stem, the handlebar connector is provided with a limiting structure capable of limiting the rotation of the handlebar cross tube around the axis of the front fork stem, and the handlebar cross tube is arranged at the limiting structure;

[0010] The threaded rod passes through the installation hole and is threadedly connected to the handlebar connecting piece to achieve the connection between the handlebar cross tube and the handlebar connecting piece.

[0011] Optionally, the handlebar connector is used for welding to the front fork stem.

[0012] Optionally, the handlebar connector is a reducing pipe, which includes a first pipe section and a second pipe section, the diameter of the first pipe section is smaller than the diameter of the second pipe section; wherein the first pipe section is used to be inserted into and welded in the front fork stem, and the limiting structure and the threaded hole adapted to the threaded rod are provided at the axial end of the second pipe section away from the first pipe section.

[0013] Optionally, the limiting structure is a concave surface that matches the outer peripheral contour of the handlebar tube.

[0014] Optionally, it also includes a handlebar lower pressure cover adapted to the outer peripheral contour of the handlebar cross tube, the handlebar lower pressure cover is arranged between the handlebar cross tube and the limiting structure, and is provided with a mounting hole connected to the mounting channel.

[0015] Optionally, the handlebar lower pressure cover is welded to the bottom of the handlebar cross tube.

[0016] Optionally, a downwardly extending reinforcement plate is provided below the handlebar lower pressure cover, and the reinforcement plate is connected to the side of the handlebar connecting piece through bolts.

[0017] Optionally, the reinforcement plate is integrally formed with the handlebar lower pressure cover, the reinforcement plate is located on one side of the mounting hole, and the outer contour of the reinforcement plate is adapted to the contour of the mounting hole.

[0018] Optionally, an upper gasket adapted to the outer peripheral contour of the handlebar tube is further included, wherein the upper gasket is arranged above the handlebar tube and is provided with a mounting hole connected to the mounting channel.

[0019] Optionally, an instrument mounting hole is also provided on the handlebar lower pressure cover.

[0020] Optionally, the handlebar tube is formed by bending a tube material.

[0021] The present invention further provides an electric vehicle, comprising the handlebar as described above, wherein the handlebar is connected to a front fork riser via the handlebar connector.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] The handlebar proposed in the present invention includes a cross tube, a handlebar connecting piece and a threaded rod. The cross tube is provided with a mounting hole penetrating through its side wall. The threaded rod penetrates the mounting hole and is threadedly connected to the handlebar connecting piece, thereby fixing the cross tube to the limiting structure of the handlebar connecting piece. Since the threaded rod intersects the axial direction of the cross tube (generally the threaded rod is perpendicular to the axial direction of the cross tube), the threaded rod not only plays the role of fixing the cross tube, but also limits the rotation of the cross tube, which can effectively prevent the cross tube from rotating around its own axis. Compared with the prior art, it is also necessary to perform knurling treatment on the cross tube connection portion to prevent the cross tube from rotating relative to the handlebar upper pressure cover and the handlebar lower pressure cover. In the present invention, it is only necessary to open a mounting hole penetrating through the side wall of the handlebar connecting portion, thereby simplifying the processing technology of the cross tube and reducing the production cost.

[0024] In some technical solutions disclosed in the present invention, the handlebar connecting piece replaces the existing stem tube and is welded to the front fork assembly. It only needs to open a threaded hole on it and screw it together with the threaded rod. This eliminates the processing steps of flattening the stem tube, punching it twice, punching an arc, and deburring it, thereby further reducing the production cost of the handlebar and improving the assembly efficiency of the handlebar.

[0025] In some technical schemes disclosed in the present invention, the cross tube and the handlebar lower pressure cover are welded to form a cross tube assembly, and the handlebar connecting part and the front fork assembly are welded to form an integral body, which not only simplifies the handlebar structure and reduces the number of parts, but also has only two installation points, namely, the threaded rod and the bolt, when the two parts are assembled. The installation is reliable, the disassembly and assembly are simple and flexible, the production efficiency is high, and the processing cost is low, which effectively solves the problems of the existing handlebar having many parts, complex assembly, complex production process, and low production efficiency.

[0026] The electric vehicle proposed by the present invention includes the above-mentioned handlebar, which has all the characteristics of the above-mentioned handlebar, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of an existing handlebar;

[0029] Figure 2 It is a schematic diagram of the overall structure of the handlebar disclosed in the embodiment of the present invention;

[0030] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A in the handlebar.

[0031] Wherein, the accompanying drawings are marked as follows:

[0032] 1. Handlebar cross tube; 2. Handlebar upper pressure cover; 3. Handlebar lower pressure cover; 4. Handlebar stem; 5. Reinforcement plate; 6. Front fork assembly; 61. Front fork stem; 7. Handlebar connector; 71. Limiting structure; 8. Threaded rod; 9. Reinforcement plate; 10. Upper gasket; 11. Instrument mounting hole; 12. Bolts. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] One of the purposes of the present invention is to provide a new type of handlebar to solve the problems of complex processing technology and high production cost of existing handlebars.

[0035] Another object of the present invention is to provide an electric vehicle having the novel handlebar.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Embodiment 1

[0038] like Figure 2 and Figure 3 As shown, this embodiment provides a new type of handlebar, including a cross tube 1, a handlebar connector 7 and a threaded rod 8. A mounting hole penetrating the side wall of the cross tube 1 is provided at the mounting position of the cross tube 1. Generally, the cross tube 1 is formed by bending a tube material, and is a round tube material. The mounting hole is arranged radially along the cross tube 1, and both ends of the mounting hole are arranged penetrating the side wall of the cross tube 1; the handlebar connector 7 is used to be connected to the front fork stem 61 of the front fork assembly 6, and a limiting structure 71 capable of limiting the rotation of the cross tube 1 around the axis of the front fork stem 61 is provided on the handlebar connector 7, and the cross tube 1 is arranged at the limiting structure 71; the threaded rod 8 penetrates the above-mentioned mounting hole and is threadedly connected to the handlebar connector 7 to realize the connection between the cross tube 1 and the handlebar connector 7. Since the mounting holes are arranged along the radial direction of the cross tube 1, the threaded rod 8 is also arranged along the radial direction of the cross tube 1. Therefore, after the cross tube 1 is assembled and connected with the handlebar connector 7 through the threaded rod 8, the threaded rod 8 can effectively limit the cross tube 1 from rotating around its own axis (such as Figure 2As shown, the self axis is used to rotate the axis of the horizontal rod at the middle position of the cross pipe 1. The threaded rod 8 can be a rod with threads on the outer wall such as a bolt or a screw.

[0039] In this embodiment, the handlebar connector 7 is used for welding with the front fork stem 61, that is, in general, the handlebar connector 7 is welded to the front fork stem 61 and forms an integral structure with the front fork stem 61. Further, the handlebar connector 7 is preferably a reducer pipe, which includes a first pipe section and a second pipe section coaxial with the first pipe section, and the diameter of the first pipe section is smaller than the diameter of the second pipe section; wherein the first pipe section is used for insertion and welding in the front fork stem 61, and the axial end of the second pipe section away from the first pipe section, that is, the top end surface of the second pipe section is provided with the aforementioned limiting structure 71 and a threaded hole threadably matched with the threaded rod 8. The handlebar connector 7 is preferably formed by cold heading, and the threaded hole threadably matched with the threaded rod 8 is preferably an M10 threaded hole coaxial with the handlebar connector 7 (that is, 10 mm in diameter of the threaded hole).

[0040] Furthermore, in this embodiment, the limiting structure 71 can be a structure assembled on the second pipe section of the handlebar connector 7, or a structure formed by the handlebar connector 7 itself. In order to reduce the number of handlebar parts and improve the efficiency of handlebar installation, in this embodiment, the limiting structure 71 is preferably a structure formed by the handlebar connector 7 itself. Furthermore, the limiting structure 71 is a concave surface adapted to the outer peripheral contour of the handlebar cross tube 1, and the concave surface is formed on the top end surface of the second pipe section of the handlebar connector 7.

[0041] In this embodiment, a handlebar lower pressure cover 3 adapted to the outer peripheral contour of the handlebar cross tube 1 is also included, that is, in the front-to-back direction of the handlebar cross tube 1, both sides of the handlebar lower pressure cover 3 are bent upward, and the entire handlebar lower pressure cover 3 is in a semi-enclosed state on the handlebar cross tube 1 in the circumferential direction. The handlebar lower pressure cover 3 is arranged between the handlebar cross tube 1 and the limiting structure 71, and is provided with a mounting hole connected to the mounting channel. During actual installation, the threaded rod 8 passes through the mounting channel and the mounting hole on the handlebar lower pressure cover 3 in sequence, and then is threadedly connected with the threaded hole at the axial end of the second pipe section of the handlebar connecting member 7. As a preferred solution, in order to reduce the installation steps between components, the handlebar lower pressure cover 3 in this embodiment is welded to the bottom of the handlebar cross tube 1. In addition, considering that the handlebar lower pressure cover 3 is arranged between the limiting structure 71 and the handlebar cross tube 1, and the handlebar lower pressure cover 3 generally has a uniform thickness, the contour of the limiting structure 71 (concave surface) is also adapted to the outer contour of the handlebar lower pressure cover 3. After the threaded rod 8 and the threaded hole of the second pipe section of the handlebar connecting member 7 are tightened, the cross tube 1 is tightly attached to the upper surface of the handlebar lower pressure cover 3, and the lower surface of the handlebar lower pressure cover 3 is tightly attached to the limiting structure 71 (concave surface). For details, see Figure 3 .

[0042] In this embodiment, a downwardly extending reinforcement plate 9 is provided below the handlebar lower gland 3, and the reinforcement plate 9 is connected to the side of the handlebar connector 7, specifically to the side wall of the second pipe section of the handlebar connector 7, through a bolt 12. The side wall of the second pipe section of the handlebar connector 7 is provided with a threaded hole opened along its radial direction, and the bolt 12 is threadedly connected to the threaded hole. The threaded hole is preferably an M6 threaded hole (i.e., 6 mm in diameter of the threaded hole) that is connected to the above-mentioned M10 threaded hole. The bolt 12 plays a reinforcing role, which can further increase the connection strength between the cross tube assembly and the handlebar connector 7.

[0043] Furthermore, in the present embodiment, the above-mentioned reinforcement plate 9 can be a structure assembled on the handlebar lower pressure cover 3, or a structure formed by the handlebar lower pressure cover 3 itself. In order to reduce the number of handlebar parts and improve the handlebar installation efficiency, the present embodiment preferably forms the reinforcement plate 9 and the handlebar lower pressure cover 3 as one piece, and the reinforcement plate 9 is located on one side of the mounting hole on the handlebar lower pressure cover 3, and the outer contour of the reinforcement plate 9 is adapted to the contour of the mounting hole, that is, the reinforcement plate 9 is a plate cut out when the mounting hole is opened, and the plate is bent downward directly relative to the handlebar lower pressure cover 3 to form the above-mentioned reinforcement plate 9. If the reinforcement plate 9 is folded into the mounting hole, it can just block the mounting hole. Figure 3 As shown, the reinforcement plate 9 is folded downward, and the mounting hole is in an open state.

[0044] In this embodiment, an upper gasket 10 adapted to the outer peripheral contour of the handlebar tube 1 is also included. The upper gasket 10 is arranged above the handlebar tube 1 and is provided with a mounting hole connected to the mounting channel. The threaded rod 8 passes through the mounting hole on the upper gasket 10, the mounting channel, and the mounting hole on the handlebar lower gland 3 in sequence, and is threadedly connected to the threaded hole at the axial end of the second pipe section of the handlebar connector 7. The size of the upper gasket 10 is preferably 40mm*20mm*2mm, and the contact area with the handlebar tube 1 is large, and the connection is stable.

[0045] In this embodiment, the handlebar lower pressure cover 3 is preferably formed by stamping. Figure 3 As shown, the handlebar lower pressure cover 3 is also provided with an instrument mounting hole 11. Specifically, the handlebar lower pressure cover 3 extends away from the handlebar cross tube 1 on one side in the front-rear direction of the handlebar cross tube 1 to form an extension plate, and the instrument mounting hole 11 is provided on the extension plate.

[0046] The installation process and principle of the handlebars in this embodiment are described in detail below.

[0047] The installation process of the handlebar can be carried out according to the following steps:

[0048] Step S1, welding the cross tube 1 and the handlebar lower gland 3 to form a cross tube assembly;

[0049] Step S2, the first pipe section of the handlebar connector 7 is inserted into the front fork riser 61 of the front fork assembly 6, and is welded to the front fork riser 61;

[0050] Step S3, placing the handlebar tube assembly and the front fork assembly 6 on the positioning tool, and placing a gasket 10 on the handlebar tube 1;

[0051] Step S4, fix the cross tube assembly to the top of the handlebar connector 7 by means of a threaded rod 8 (such as a bolt), and simultaneously connect the reinforcing plate 9 and the second tube section of the handlebar connector 7 by means of a bolt 12 at the rear of the handlebar to complete the assembly of the cross tube assembly and the front fork assembly 6.

[0052] In actual operation, the above steps S1 and S2 can be performed in reverse order or simultaneously.

[0053] As can be seen from the above, in the handlebar proposed in this specific implementation scheme, the cross tube 1 and the handlebar lower pressure cover 3 are preferably welded and connected to form a cross tube assembly, the handlebar connecting member 7 and the front fork riser 61 of the front fork assembly 6 are welded and connected, and then the cross tube assembly is fixed to the top of the handlebar connecting member 7 by a threaded rod 8 (such as a bolt). Since the threaded rod 8 penetrates the cross tube 1 along the radial direction of the cross tube 1, the threaded rod 8 not only plays the role of fixing the cross tube assembly, but also limits the rotation of the cross tube 1, which can effectively prevent the cross tube 1 from rotating around its own axis (that is, rotating relative to the handlebar lower pressure cover 3). Compared with the prior art, it is also It is necessary to perform knurling on the connection part of the cross tube 1 to prevent the cross tube 1 from rotating relative to the upper pressure cover 2 and the lower pressure cover 3 of the handlebar. This solution only needs to open a radial installation channel at the connection part of the cross tube 1, which simplifies the processing technology of the cross tube 1 and reduces the production cost. At the same time, the handlebar connector 7 replaces the existing stem tube 4, and the bottom is directly welded to the front fork assembly 6. The top only needs to open a threaded hole and tighten with the threaded rod 8, which eliminates the processing steps of the existing stem tube 4, which needs to be flattened, punched twice, punched, and deburred, further reducing the production cost of the handlebar and improving the assembly efficiency of the handlebar. The handlebar proposed in this specific implementation scheme has the following beneficial effects compared with the prior art:

[0054] 1. The overall parts structure is simple, the production and processing are simple, and the production cost is low.

[0055] 2. The traditional handlebar stem is eliminated, and the handlebar connector 7 is welded to the front fork stem, so the assembly process is simple and the installation cost is low.

[0056] 3. The cross tube 1 and the handlebar lower pressure cover 3 are welded together to form a cross tube assembly. At the same time, the handlebar connector 7 and the front fork assembly 6 are welded together to form an integral body. When the two components are assembled, there are only two installation points, namely the threaded rod 8 and the bolt 12. The assembly and disassembly is flexible and the production efficiency is high.

[0057] 4. It has strong versatility and can be adapted to different handlebars.

[0058] Embodiment 2

[0059] This embodiment also provides an electric vehicle, comprising the handlebar as described above, which is connected to the front fork riser 61 through the handlebar connector 7. Specifically, the first pipe section of the handlebar connector 7 is plugged and welded to the front fork riser 61, and then the cross pipe assembly formed by welding the cross pipe 1 and the handlebar lower pressure cover 3 is placed at the limiting structure 71 at the top of the second pipe section of the handlebar connector 7, and finally the upper gasket 10 is placed above the cross pipe 1, and the threaded rod 8 passes through the mounting hole on the upper gasket 10, the mounting channel, and the mounting hole on the handlebar lower pressure cover 3 in sequence, and then is threadedly connected with the threaded hole at the axial end of the second pipe section of the handlebar connector 7, and the reinforcing plate 9 and the second pipe section of the handlebar connector 7 are connected by bolts 12, so as to realize the assembly of the handlebar and the front fork assembly 6.

[0060] The electric vehicle is installed and uses the handlebar disclosed in the first embodiment, which has the effects of low cost, simple structure and simple installation process, and the details are not repeated here.

[0061] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A handlebar, characterized in that: include: A handlebar cross tube is provided with a mounting hole penetrating through its side wall; A handlebar connector, used to be connected to the front fork stem, the handlebar connector is provided with a limiting structure capable of limiting the rotation of the handlebar cross tube around the axis of the front fork stem, and the handlebar cross tube is arranged at the limiting structure; The threaded rod passes through the installation hole and is threadedly connected to the handlebar connecting piece to achieve the connection between the handlebar cross tube and the handlebar connecting piece.

2. The handlebar according to claim 1, characterized in that: The handlebar connector is used for welding with the front fork riser.

3. The handlebar according to claim 2, characterized in that: The handlebar connector is a reducer, comprising a first pipe section and a second pipe section, wherein the diameter of the first pipe section is smaller than the diameter of the second pipe section; wherein the first pipe section is used for being inserted into and welded in the front fork stem, and the limiting structure and the threaded hole adapted to the threaded rod are provided at the axial end of the second pipe section away from the first pipe section.

4. The handlebar according to claim 3, characterized in that: The limiting structure is a concave surface adapted to the outer peripheral contour of the handlebar cross tube.

5. The handlebar according to any one of claims 1 to 4, characterized in that: It also includes a handlebar lower pressure cover adapted to the outer peripheral contour of the handlebar cross tube, the handlebar lower pressure cover is arranged between the handlebar cross tube and the limiting structure, and is provided with a mounting hole connected to the mounting channel.

6. The handlebar according to claim 5, characterized in that The handlebar lower pressure cover is welded to the bottom of the handlebar cross tube.

7. The handlebar according to claim 5, characterized in that A downwardly extending reinforcing plate is arranged below the handlebar lower pressure cover, and the reinforcing plate is connected to the side of the handlebar connecting piece through bolts.

8. The handlebar according to claim 7, characterized in that The reinforcing plate is integrally formed with the handlebar lower pressure cover, the reinforcing plate is located at one side of the mounting hole, and the outer contour of the reinforcing plate is matched with the contour of the mounting hole.

9. The handlebar according to any one of claims 1 to 4, characterized in that: It also includes an upper gasket adapted to the outer peripheral contour of the handlebar tube. The upper gasket is arranged above the handlebar tube and is provided with a mounting hole connected to the mounting channel.

10. An electric vehicle, characterized in that: The handlebar comprises the handlebar according to any one of claims 1 to 9, wherein the handlebar is connected to the front fork stem via the handlebar connector.

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