Handlebar front fork connecting structure and electric vehicle with same

Abstract

The utility model discloses a handlebar and front fork connecting structure and an electric vehicle with the handlebar and front fork connecting structure, the handlebar and front fork connecting structure comprises a front fork vertical pipe, a handlebar vertical pipe and a connecting piece, and the front fork vertical pipe is provided with a connecting hole penetrating in the radial direction of the front fork vertical pipe; the handlebar vertical pipe is arranged outside the front fork vertical pipe in a sleeving mode, the handlebar vertical pipe comprises a threaded hole and a through hole which are oppositely arranged in the radial direction of the handlebar vertical pipe, and the threaded hole and the through hole are both formed corresponding to the connecting hole; the connecting piece comprises a connecting rod and a connector, the connecting rod penetrates through the connecting hole and is in threaded connection with the threaded hole, and the connector is arranged in the through hole. According to the handlebar and front fork connecting structure, the connecting head of the connecting piece is arranged in the through hole, the connecting piece can be prevented from being exposed out of the handlebar vertical pipe, a decorative cover does not need to be arranged at the connecting position of the handlebar and the front fork, and therefore the structure of the connecting position of the handlebar and the front fork can be simplified, and cost of the handlebar and front fork connecting structure is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, specifically to a handlebar fork connection structure and an electric vehicle having the same. Background Technology

[0002] In related technologies, the handlebar stem and fork stem of electric bicycles are typically connected by bolts. Specifically, the handlebar stem has a handlebar through-hole, and the fork stem has a fork through-hole. The bolt passes through both the handlebar through-hole and the fork through-hole and is threaded onto a nut. This connection method results in the bolt being exposed on the outside of the handlebar stem, requiring a decorative cover to conceal it. The structure at the handlebar-fork connection is complex and costly. Utility Model Content

[0003] This utility model proposes a handlebar fork connection structure to reduce the cost of the handlebar fork connection structure.

[0004] The handlebar fork connection structure of this utility model includes a fork stem, a handlebar stem, and a connector. The fork stem has a connecting hole that extends radially through it. The handlebar stem is sleeved on the outside of the fork stem. The handlebar stem includes a threaded hole and a through hole arranged radially opposite to each other. The threaded hole and the through hole are both provided corresponding to the connecting hole. The connector includes a connecting rod and a connecting head. The connecting rod passes through the connecting hole and is threadedly connected to the threaded hole. The connecting head is disposed in the through hole.

[0005] Optionally, the cross-sectional dimension of the connector is larger than the cross-sectional dimension of the connecting rod, and the connector abuts against the fork riser in the direction toward the threaded hole.

[0006] Optionally, the handlebar fork connection structure further includes a washer, which is sleeved on the connecting rod and clamped between the connector and the fork stem.

[0007] Optionally, the handlebar stem includes a first ring and a second ring, the first ring being sleeved on the outside of the fork stem, and the second ring being sleeved on the outside of the first ring and connected to the first ring.

[0008] Optionally, the handlebar stem further includes a reinforcing rib, which is disposed between the first ring and the second ring, and both the first ring and the second ring are connected to the reinforcing rib. At least a portion of the threaded hole is disposed on the reinforcing rib.

[0009] Optionally, the wall thickness of the first ring body is 1.0 mm to 2.0 mm; and / or, the wall thickness of the second ring body is 2.0 mm to 3.0 mm.

[0010] Optionally, there are multiple connecting holes, threaded holes, through holes, and connectors. The connecting holes, threaded holes, through holes, and connectors correspond one-to-one, and the multiple connectors are arranged at intervals along the height direction of the handlebar stem.

[0011] Optionally, the threaded hole extends radially through the inner and outer walls of the handlebar stem.

[0012] Optionally, the gap between the handlebar stem and the fork stem is 0.05mm to 0.15mm.

[0013] This utility model also proposes an electric vehicle.

[0014] The electric vehicle of this utility model includes the handlebar and fork connection structure described in any of the above-mentioned claims.

[0015] This utility model discloses a handlebar-fork connection structure. By sleeved the handlebar seat tube over the fork seat tube, radial restraint is achieved between the two. A threaded hole and a through hole are provided on the handlebar seat tube, and the connecting rod of the connector passes through the connecting hole and is threaded into the threaded hole. This allows for axial and circumferential restraint between the handlebar seat tube and the fork seat tube, thus achieving the connection between them. By placing the connector head within the through hole, the connector is prevented from being exposed on the outside of the handlebar seat tube, eliminating the need for a decorative cover at the handlebar-fork connection point. This simplifies the structure at the handlebar-fork connection and reduces the cost of the handlebar-fork connection structure. Attached Figure Description

[0016] Figure 1 This is a perspective view of the handlebar fork connection structure according to an embodiment of the present utility model.

[0017] Figure 2 This is a sectional view of the front view of the handlebar fork connection structure according to an embodiment of this utility model.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a top view and a cross-sectional view of the handlebar stem of the handlebar fork connection structure according to an embodiment of this utility model.

[0020] Figure label:

[0021] 100. Handlebar and fork connection structure;

[0022] 1. Front fork riser; 11. Connecting hole;

[0023] 2. Handlebar stem; 21. Threaded hole; 22. Through hole; 201. First ring; 202. Second ring; 203. Reinforcing rib;

[0024] 3. Connecting parts; 31. Connecting rod; 32. Connecting head; 33. Tightening part; 34. Washer;

[0025] 4. Handlebar crossbar;

[0026] 5. Reinforcing components. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] like Figures 1 to 4 As shown, the handlebar fork connection structure 100 of this utility model embodiment includes a fork stem 1, a handlebar stem 2, and a connector 3. The handlebar stem 2 is sleeved on the outside of the fork stem 1. The fork stem 1 has a connecting hole 11 that extends radially through it. The handlebar stem 2 includes a threaded hole 21 and a through hole 22 arranged radially opposite to each other, with the threaded hole 21 and the through hole 22 corresponding to the connecting hole 11. The connector 3 includes a connecting rod 31 and a connector 32. The connecting rod 31 passes through the connecting hole 11 and is threadedly connected to the threaded hole 21, and the connector 32 is disposed in the through hole 22.

[0029] The handlebar fork connection structure 100 of this utility model allows for radial positioning between the handlebar stem 2 and the fork stem 1 by sleeved onto the outside of the handlebar stem 2. By providing a threaded hole 21 and a through hole 22 on the handlebar stem 2, and threading the connecting rod 31 of the connector 3 through the connecting hole 11 and connecting it to the threaded hole 21, the connector 3 achieves axial and circumferential positioning between the handlebar stem 2 and the fork stem 1, thus connecting the two components. By placing the connector head 32 of the connector 3 inside the through hole 22, the connector 3 is prevented from being exposed on the outside of the handlebar stem 2, eliminating the need for a decorative cover at the handlebar-fork connection point. This simplifies the structure at the handlebar-fork connection point and reduces the cost of the handlebar fork connection structure.

[0030] In some embodiments, there are multiple connecting holes 11, threaded holes 21, through holes 22, and connectors 3, and the multiple connectors 3 are arranged at intervals along the height direction of the handlebar stem 2. The connecting holes 11, threaded holes 21, through holes 22, and connectors 3 correspond one-to-one.

[0031] For example, such as Figures 2 to 3As shown, taking the handlebar stem 2 with the height direction aligned with the vertical direction as an example, there are two connecting holes 11, two threaded holes 21, two through holes 22, and two connectors 3, which are arranged at intervals along the vertical direction.

[0032] By setting multiple connectors 3, the axial and circumferential limiting between the handlebar stem 2 and the fork stem 1 can be achieved by using multiple connectors 3, thereby improving the connection stability between the handlebar stem 2 and the fork stem 1 and improving the reliability of the handlebar fork connection structure 100.

[0033] Of course, in other embodiments, the number of connecting hole 11, threaded hole 21, through hole 22 and connector 3 may all be one.

[0034] In some embodiments, such as Figures 2 to 4 As shown, the threaded hole 21 penetrates the inner and outer walls of the handlebar stem 2 radially. In other words, the threaded hole 21 is a through hole.

[0035] By making the threaded hole 21 a through hole, the threaded hole 21 can be machined not only on the outer wall of the handlebar stem 2 facing inward, but also on the inner wall of the handlebar stem 2 facing outward, which facilitates the machining and manufacturing of the threaded hole 21.

[0036] Of course, in some other embodiments, the threaded hole 21 can also be a blind hole. In this case, the threaded hole 21 only penetrates the inner wall surface of the handlebar stem 2 radially.

[0037] In some embodiments, the cross-sectional dimension of the connector 32 is larger than that of the connector 31, and the connector 32 abuts against the fork riser 1 in the direction toward the threaded hole 21.

[0038] The cross-section of connector 32 can be understood as the cross-section of connector 32 cut by a plane perpendicular to the length direction of connecting rod 31. The cross-section of connecting rod 31 can be understood as the cross-section of connecting rod 31 cut by a plane perpendicular to the length direction of connecting rod 31.

[0039] By abutting the connector 32 against the fork stem 1 in the direction toward the threaded hole 21, after the connecting rod 31 is threadedly connected to the threaded hole 21, the connector 32 abutting against the fork stem 1 in the direction toward the threaded hole 21 applies a force to the connecting rod 31 in the extension direction of the threaded hole 21, ensuring that the threads of the connecting rod 31 and the threaded hole 21 are tightly fitted, preventing loosening at the connection between the connecting rod 31 and the threaded hole 21. This improves the connection stability between the handlebar stem 2 and the fork stem 1, further enhancing the reliability of the handlebar fork connection structure 100.

[0040] Optionally, the handlebar fork connection structure 100 further includes a washer 34, which is sleeved on the connecting rod 31 and clamped between the connector 32 and the fork stem 1.

[0041] Among them, gasket 34 can be an elastic gasket.

[0042] By clamping the gasket 34 between the connector 32 and the fork stem 1, the connection stability between the handlebar stem 2 and the fork stem 1 can be further improved, and the reliability of the handlebar fork connection structure 100 can be further improved.

[0043] Optionally, the connector 3 is a bolt, with the bolt shank forming a connecting rod 31 and the bolt head forming a connector head 32.

[0044] For example, the bolt is M10*35.

[0045] In some embodiments, the gap between the handlebar stem 2 and the fork stem 1 is 0.05mm to 0.15mm.

[0046] For example, the gap between the handlebar stem 2 and the fork stem 1 is 0.1mm.

[0047] Understandably, if the gap between the handlebar stem 2 and the fork stem 1 is too large, the handlebar stem 2 and the fork stem 1 will easily wobble radially, resulting in poor connection stability between the handlebar stem 2 and the fork stem 1; if the gap between the handlebar stem 2 and the fork stem 1 is too small, the fork stem 1 will be difficult to insert into the handlebar stem 2, resulting in difficulty in assembling the handlebar stem 2 and the fork stem 1.

[0048] By setting the gap between the handlebar stem 2 and the fork stem 1 to 0.05mm to 0.15mm, the connection stability between the handlebar stem 2 and the fork stem 1 is ensured, while facilitating the assembly of the handlebar stem 2 and the fork stem 1.

[0049] In some embodiments, the handlebar stem 2 includes a first ring 201 and a second ring 202. The first ring 201 is sleeved on the outside of the fork stem 1, and the second ring 202 is sleeved on the outside of the first ring 201 and connected to the first ring 201.

[0050] By designing the handlebar stem 2 to include a first ring 201 and a second ring 202, the amount of material in the handlebar stem 2 can be reduced, which helps to reduce the cost and weight of the handlebar stem 2.

[0051] Optionally, such as Figure 4As shown, the handlebar stem 2 also includes a reinforcing rib 203, which is disposed between the first ring 201 and the second ring 202. Both the first ring 201 and the second ring 202 are connected to the reinforcing rib 203. At least a portion of the threaded hole 21 is disposed on the reinforcing rib 203.

[0052] By providing a reinforcing rib 203 between the first ring 201 and the second ring 202, the overall structural strength of the handlebar stem 2 and the overall strength of the handlebar fork connection structure 100 can be improved. Furthermore, by placing at least a portion of the threaded hole 21 on the reinforcing rib 203, the connection area of ​​the threaded hole 21 can be increased, improving the connection stability between the connector 3 and the handlebar stem 2, and further enhancing the connection stability between the handlebar stem 2 and the fork stem 1.

[0053] Optionally, the wall thickness of the first annular body 201 is 1.0 mm to 2.0 mm.

[0054] For example, the wall thickness of the first annular body 201 is 1.5 mm.

[0055] It is understandable that if the wall thickness of the first ring 201 is too small, the structural strength of the first ring 201 will be poor, resulting in poor structural strength of the handlebar stem 2. If the wall thickness of the first ring 201 is too large, it will increase the cost of the handlebar stem 2.

[0056] By setting the wall thickness of the first ring 201 to 1.0mm to 2.0mm, the cost of the handlebar stem 2 can be reduced while ensuring the structural strength of the handlebar stem 2, thus balancing the structural strength and cost of the handlebar stem 2.

[0057] Optionally, the outer diameter of the first ring 201 is 48 mm.

[0058] Optionally, the wall thickness of the second annulus 202 is 2.0 mm to 3.0 mm.

[0059] For example, the wall thickness of the second annulus 202 is 2.5 mm.

[0060] It is understandable that if the wall thickness of the second ring 202 is too small, the structural strength of the second ring 202 will be poor, resulting in poor structural strength of the handlebar stem 2. If the wall thickness of the second ring 202 is too large, it will increase the cost of the handlebar stem 2.

[0061] By setting the wall thickness of the second ring 202 to 2.0mm to 3.0mm, the cost of the handlebar stem 2 can be reduced while ensuring the structural strength of the handlebar stem 2, thus balancing the structural strength and cost of the handlebar stem 2.

[0062] Optionally, the outer diameter of the second ring 202 is 29 mm.

[0063] Optionally, such as Figure 4 As shown, there are multiple reinforcing ribs 203, which are arranged at intervals along the circumference of the handlebar stem 2. Among them, the thickness of the reinforcing rib 203 with threaded hole 21 is greater than the thickness of the other reinforcing ribs 203.

[0064] By setting multiple reinforcing ribs 203, the structural strength of the handlebar stem 2 can be further improved. By setting a larger thickness for the reinforcing ribs 203 with threaded holes 21, the reliability of the threaded holes 21 can be ensured, and the connection stability between the handlebar stem 2 and the fork stem 1 can be improved.

[0065] Optionally, the first ring 201, the second ring 202, and the reinforcing rib 203 are integrally formed.

[0066] For example, the handlebar stem 2 is made of one piece of aluminum alloy.

[0067] The first ring 201, the second ring 202, and the reinforcing rib 203 are integrally extruded, which facilitates the processing and manufacturing of the handlebar stem 2, helps to reduce the cost and weight of the handlebar stem 2, and facilitates the lightweight design of the handlebar fork connection structure 100.

[0068] Optionally, such as Figure 1 and Figure 2 As shown, the handlebar fork connection structure 100 also includes a handlebar cross tube 4 and a reinforcing member 5. The handlebar cross tube 4 is connected to the handlebar stem tube 2, and the reinforcing member 5 is connected to the connection point between the handlebar cross tube 4 and the handlebar stem tube 2.

[0069] By setting the reinforcing component 5, the connection between the handlebar cross tube 4 and the handlebar stem tube 2 can be strengthened, thereby improving the reliability of the handlebar fork connection structure 100.

[0070] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 utility model and simplifying the description, and are not intended to 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 utility model.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A handlebar fork connection structure, characterized in that, include: A fork riser, wherein the fork riser is provided with a connecting hole that extends radially therethrough; The handlebar stem includes a first ring and a second ring. The first ring is sleeved on the outside of the fork stem, and the second ring is sleeved on the outside of the first ring and connected to the first ring. The handlebar stem is sleeved on the outside of the fork stem. The handlebar stem includes a threaded hole and a through hole arranged radially opposite to each other. The threaded hole and the through hole are both provided corresponding to the connecting hole. A connector, comprising a connecting rod and a connecting head, wherein the connecting rod passes through the connecting hole and is threadedly connected to the threaded hole, and the connecting head is disposed within the through hole.

2. The handlebar fork connection structure according to claim 1, characterized in that, The cross-sectional dimension of the connector is larger than that of the connecting rod, and the connector abuts against the fork riser in the direction toward the threaded hole.

3. The handlebar fork connection structure according to claim 2, characterized in that, It also includes a gasket, which is fitted onto the connecting rod and clamped between the connector and the fork riser.

4. The handlebar fork connection structure according to claim 1, characterized in that, The handlebar stem also includes a reinforcing rib, which is disposed between the first ring and the second ring. Both the first ring and the second ring are connected to the reinforcing rib, and at least a portion of the threaded hole is disposed on the reinforcing rib.

5. The handlebar fork connection structure according to claim 1, characterized in that, The wall thickness of the first annulus is 1.0 mm to 2.0 mm; and / or The wall thickness of the second ring is 2.0mm to 3.0mm.

6. The handlebar fork connection structure according to any one of claims 1-5, characterized in that, The number of the connecting holes, the threaded holes, the through holes, and the connectors are all multiple, and the connecting holes, threaded holes, through holes, and connectors correspond one-to-one, with the multiple connectors arranged at intervals along the height direction of the handlebar stem.

7. The handlebar fork connection structure according to any one of claims 1-5, characterized in that, The threaded hole penetrates the inner and outer walls of the handlebar stem radially.

8. The handlebar fork connection structure according to any one of claims 1-5, characterized in that, The gap between the handlebar stem and the fork stem is 0.05mm to 0.15mm.

9. An electric vehicle, characterized in that, The handlebar fork connection structure includes any one of claims 1-8.

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