Front fork assembly and electric bicycle

Abstract

The utility model discloses a front fork assembly and an electric bicycle, the front fork assembly comprises a front fork, the front fork comprises a vertical pipe, the upper end of the vertical pipe is open, the vertical pipe is provided with a notch, the notch extends downwards from the upper end opening of the vertical pipe, and the lower end of the vertical pipe is fixedly connected with a front fork leg; the vertical rod is inserted into the containing cavity of the vertical pipe, the vertical rod can rotate in the containing cavity, and the vertical rod can move in the axial direction of the vertical pipe; and the quick release hoop is arranged on the vertical pipe in a sleeving manner, and in a tightening state, the quick release hoop is located on the peripheral side of the notch of the vertical pipe, so that the vertical rod is fixed in the containing cavity of the vertical pipe. The front fork assembly comprises a front fork and a vertical rod inserted into the front fork, and the vertical rod can move in the axial direction of the front fork and can rotate in the front fork, so that the height of the head of the electric bicycle can be adjusted, and the head of the electric bicycle can rotate relative to a front wheel.

Description

Technical Field

[0001] This utility model relates to electric bicycle parts, specifically a front fork assembly and an electric bicycle. Background Technology

[0002] Electric bicycles are vehicles that are based on ordinary bicycles but equipped with motors, controllers, batteries, throttles, brake levers, and display systems. They are now widely used by the public as a convenient means of transportation. However, the front fork of existing bicycles or electric bicycles is fixed, and the handlebars are also fixedly connected to the front fork, resulting in the handlebar height not being adjustable. This inevitably leads to differences in riding comfort for users of different heights and arm lengths. In addition, to prevent theft, users usually store their vehicles indoors, and the side-extending handlebars increase the vehicle's footprint. Summary of the Invention

[0003] To overcome the deficiencies in the prior art, this utility model provides a front fork assembly and an electric bicycle. The front fork assembly includes a front fork and a stem inserted into the front fork. The stem can move along the axial direction of the front fork and rotate within the front fork, thereby enabling the electric bicycle to have an adjustable front wheel height and rotate relative to the front wheel.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a front fork assembly, comprising:

[0005] A fork, the fork including a stem tube, the upper end of the stem tube being open, the stem tube having a notch extending downward from the upper end of the stem tube, and a fork leg being fixedly connected to the lower end of the stem tube;

[0006] The upright is inserted into the receiving cavity of the vertical pipe, the upright can rotate within the receiving cavity, and the upright can move along the axial direction of the vertical pipe;

[0007] A quick-release clamp is fitted onto the vertical pipe. In the tightened state, the quick-release clamp is located around the notch of the vertical pipe to fix the upright in the receiving cavity of the vertical pipe.

[0008] By installing the fork assembly onto the vehicle using the above technical solution and loosening the quick-release clamp, the user can freely adjust the height of the stem relative to the fork according to their own needs, thereby adjusting the handlebars to a comfortable riding height. Alternatively, the stem can be rotated to adjust the orientation of the handlebars.

[0009] Furthermore, the quick-release clamp includes a C-shaped clip with a first through hole. A screw is installed in the first through hole. The vertical tube has a second through hole that mates with the first through hole. The first through hole and / or the second through hole are threaded, allowing the screw to pass through the second through hole and abut against the vertical pole. The screw abuts against the vertical pole, thus strengthening the fixation.

[0010] Furthermore, the surface of the upright has a groove extending along its axial direction, and the screw can be adjusted so that it is partially located within the groove. During normal use, the head of the screw is adjusted to abut against the groove, and the screw and the side walls on both sides of the groove form a limit, ensuring that the upright cannot rotate relative to the vertical tube.

[0011] Furthermore, the groove of the upright is provided with at least one positioning hole for the screw, which can be inserted into the positioning hole. Inserting the screw into the positioning hole ensures that the upright cannot rotate relative to the vertical tube, and also ensures that the upright cannot move axially relative to the vertical tube.

[0012] Furthermore, the outer surface of the vertical tube is provided with threads, and the vertical tube is fitted with an internally threaded component that matches the threads. The internally threaded component is used to fix the vertical tube to the upper cover of the vehicle's headset, which can ensure that the vertical tube and the vehicle's head tube are relatively fixed in the axial direction of the vertical tube.

[0013] Furthermore, the first through hole is opposite to the opening of the C-shaped clip.

[0014] Furthermore, the outer diameter of the upright is less than or equal to the inner diameter of the receiving cavity, to ensure that the upright can rotate and move freely within the receiving cavity.

[0015] Furthermore, one end of the upright pole inserted into the receiving cavity is provided with an elastic element, which abuts against the inner wall of the receiving cavity. After installation and fixing, the end of the upright pole inserted into the receiving cavity is fixed by the elastic element against the inner wall of the receiving cavity, and the upright pole is locked and fixed at the opening of the receiving cavity by a quick-release clamp, thereby ensuring that the upright pole will not shake inside the receiving cavity.

[0016] An electric bicycle employs the aforementioned front fork assembly, which is fixed to the head tube of the electric bicycle frame by a headset.

[0017] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0018] The front fork assembly disclosed in this application includes a front fork and a stem inserted into the front fork. The stem can move along the axial direction of the front fork and can rotate within the front fork, thereby enabling the electric bicycle to have an adjustable front head height and the electric bicycle to rotate relative to the front wheel.

[0019] In this application, the upright is provided with a positioning hole, and the vertical tube and the upright are provided with a first through hole and a second through hole that match each other. By using a screw to pass through the first through hole and the second through hole and insert it into the positioning hole, the position of the vertical tube relative to the upright can be fixed, thus avoiding the problem of the handlebars dropping or rotating during normal riding.

[0020] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall device structure of the front fork assembly in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the front fork assembly without quick-release clamps in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the front fork structure in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the upright in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the quick-release clamp in an embodiment of this utility model;

[0027] Figure 6 This is a structural schematic diagram of the electric bicycle in an embodiment of this utility model.

[0028] The reference numerals in the above figures are as follows: 1. Front fork; 11. Stem tube; 12. Notch; 13. Front fork leg; 14. Second through hole; 15. Thread; 2. Stem; 21. Mounting part; 22. Groove; 3. Quick release clamp; 31. C-clamp; 32. Quick release structure; 4. Screw; 5. Internal threaded part; 6. Head tube. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] Example: Figure 1-2 As shown, this embodiment discloses a front fork assembly, including:

[0032] Front fork 1, such as Figure 3 As shown, the front fork 1 includes a vertical tube 11, the lower end of which is fixedly connected to two fork legs 13 for mounting wheels. The upper end of the vertical tube 11 has a receiving cavity extending axially along the vertical tube 11. The vertical tube 11 has an axial notch 12 at the opening of the receiving cavity, allowing the receiving cavity to have an adjustable diameter at the notch 12. A second through hole 14 is provided on the vertical tube 11 opposite to the notch 12.

[0033] The outer surface of the vertical tube 11 is provided with threads 15, and the vertical tube 11 is fitted with an internally threaded part 5 that mates with the threads. The internally threaded part 5 is used to fix the vertical tube 11 to the upper cover of the headset of the vehicle, so as to fix the front fork 1 to the head tube 6 of the bicycle or electric bicycle. The internally threaded part 5 can be a nut.

[0034] A vertical rod 2 is inserted into the receiving cavity of the vertical tube 11, such as Figure 4 As shown, the outer diameter of the upright 2 is equal to the inner diameter of the receiving cavity of the vertical tube 11. An elastic element, including a rubber ring, is provided at the lower end of the upright 2. The lower end of the upright 2 is inserted into the receiving cavity of the vertical tube 11, so that the elastic element abuts against the inner wall of the receiving cavity of the vertical tube 11. The vertical tube 11 can move axially and rotate within the receiving cavity of the vertical tube 11. A mounting portion 21 for installing a handle is provided at the upper end of the upright 2.

[0035] The outer surface of the upright 2 is provided with an axially extending groove 22.

[0036] The vertical pipe 11 is fitted with a quick-release clamp 3, such as Figure 5As shown, the quick-release clamp 3 includes a C-shaped clamp 31 sleeved on the outside of the vertical pipe 11, and a quick-release structure 32 for controlling the tightening or loosening of the C-shaped clamp 31. The C-shaped clamp 31 is sleeved on the periphery of the notch 12. The quick-release structure 32 controls the loosening or tightening of the C-shaped clamp 31, thereby adjusting the diameter of the receiving cavity located at the notch 12.

[0037] The upright 2 is inserted into the receiving cavity of the vertical pipe 11. One end of the upright 2 inserted into the receiving cavity is fixed by the elastic element against the inner side wall of the receiving cavity. The upright 2 is locked and fixed at the opening of the receiving cavity by the quick-release clamp 3, thereby ensuring that the upright 2 will not shake in the receiving cavity.

[0038] The C-shaped clamp 31 is provided with a first through hole that mates with the second through hole. The inner wall of the first through hole is threaded, and a screw 4 is provided inside the first through hole. The screw 4 can pass through the first through hole and the second through hole 14 and thus abut against the groove 22 of the upright 2. Under the constraint of the two side walls of the groove 22, the screw 4 can prevent the upright 2 from rotating within the receiving cavity of the vertical tube 11.

[0039] A positioning hole 221 is provided in the groove 22, and the screw 4 can be inserted into the positioning hole 221. The position of the upright 2 has been fixed. This ensures that the upright 2 cannot rotate relative to the vertical tube 11, and also ensures that the upright 2 cannot move axially relative to the vertical tube 11.

[0040] In some feasible embodiments, the groove 22 is provided with a plurality of positioning holes 221 arranged at intervals along the length of the groove 22, so that the screw 4 can fix the upright 2 in a plurality of different positions.

[0041] This application also discloses an electric bicycle, such as Figure 6 As shown, the electric bicycle uses the aforementioned front fork assembly. The front fork assembly is fixed inside the head tube 6 of the electric bicycle frame by a headset and an internal threaded component 5. The internal threaded component 5 is sleeved on the outside of the thread 15 of the vertical tube 11, thereby ensuring that the vertical tube 11 and the vehicle head tube 6 are relatively fixed in the axial direction of the vertical tube 11.

[0042] Using the above method, the front fork assembly is installed on the vehicle. Initially, the screw 4 is inserted through the first through hole.

[0043] The second through hole 14 is inserted into the positioning hole 221.

[0044] When the handlebar height needs to be adjusted, loosen the quick-release clamp 3 and rotate the screw 4 to disengage it from the second through hole 14. At this time, the user can freely adjust the height of the upright 2 relative to the fork 1 according to their own needs, thereby adjusting the handlebar to a comfortable riding height. Then tighten the screw 4 and tighten the quick-release clamp 3.

[0045] When the user needs to store the vehicle indoors, loosen the quick-release clamp 3 and rotate the screw 4 to disengage it from the second through hole 14. At this time, the user can rotate the upright 2 to adjust the handlebar so that it is aligned with the electric bicycle, thereby reducing the footprint of the electric bicycle.

[0046] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A front fork assembly, characterized by, The utility model relates to a front fork assembly of an electric bicycle, comprising: a front fork comprising a vertical tube, an upper end of the vertical tube being open, the vertical tube being provided with a notch extending downward from the upper end opening of the vertical tube, and a front fork leg being fixedly connected to a lower end of the vertical tube; a vertical rod being inserted into a receiving cavity of the vertical tube, the vertical rod being capable of rotating in the receiving cavity and moving along an axial direction of the vertical tube; a quick-release hoop being sleeved on the vertical tube, in a tightened state, the quick-release hoop being located on a circumferential side of the notch of the vertical tube to fix the vertical rod in the receiving cavity of the vertical tube; the quick-release hoop comprising a C-shaped clamp, a first through hole being provided on the C-shaped clamp, a screw being provided in the first through hole, a second through hole being provided on the vertical tube to cooperate with the first through hole, a thread being provided in the first through hole or / and the second through hole, and the screw being capable of abutting against the vertical rod through the second through hole; a groove extending along an axial direction of the vertical rod being provided on a surface of the vertical rod, and the screw being capable of being adjusted to be partially located in the groove.

2. The fork assembly of claim 1, wherein, at least one positioning hole cooperating with the screw being provided in the groove of the vertical rod, and the screw being capable of being inserted into the positioning hole.

3. The fork assembly of claim 1, wherein, a thread being provided on an outer surface of the vertical tube, an internal thread member cooperating with the thread being sleeved on the vertical tube, and the internal thread member being used to fix the vertical tube on an upper cover of a bowl assembly of a vehicle.

4. The fork assembly of claim 2, wherein, the first through hole being opposite to an opening of the C-shaped clamp.

5. The fork assembly of claim 1, wherein, an outer diameter of the vertical rod being less than or equal to an inner diameter of the receiving cavity.

6. The fork assembly of claim 5, wherein, an elastic member being provided on an end of the vertical rod inserted into the receiving cavity, and the elastic member abutting against an inner side wall of the receiving cavity.

7. An electric bicycle, characterized by the electric bicycle adopting the front fork assembly according to any one of claims 1-6, and the front fork assembly being fixed in a head tube of a frame of the electric bicycle through the bowl assembly.

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