Steering linkage mechanism and electric scooter

Abstract

The present invention provides a steering linkage mechanism, which includes: a first connecting frame, a second connecting frame, a third connecting frame, a front fork and a handle frame; the front hinge hole at one end of the second connecting frame is hinge-connected to the upper hinge hole of the first connecting frame, the rear hinge hole at the other end is hinge-connected to the front hinge hole at one end of the third connecting frame, the other end of the third connecting frame has a rear hinge hole, the lower hinge hole of the first connecting frame is connected to the upper hinge hole of the front fork, a bearing hole is also provided on the upper end surface of the front fork, a vertical shaft is provided in the bearing hole, the lower end of the front fork is pivotally connected to the front wheel, and the handle frame is slidably mounted on the first connecting frame. The steering linkage mechanism of the present invention can ensure that the total length of the body of the electric scooter remains unchanged, obtain the longest front and rear wheelbase to greatly improve the driving stability of the whole vehicle, and have the smallest turning radius, so that some small spaces such as indoor or elevator rooms can also move freely.

Description

Technical Field

[0001] The present invention relates to the technical field of electric scooters, and in particular to a steering linkage mechanism and an electric scooter. Background Art

[0002] There are mainly three types of existing electric scooters: one of which has a fixed chassis and a detachable seat, is heavy and bulky, and is not convenient to carry outside.

[0003] Secondly, the chassis is a front and rear folding structure, and the seat is also a folding structure. The weight and volume are slightly smaller, but it is folded by reducing the size of the driving wheels and steering wheels. Therefore, the obvious disadvantage is that the obstacle crossing ability is greatly weakened, and the wheelbase is very short, which reduces driving stability.

[0004] The third chassis is a front-to-back folding structure, and the seat is an up-and-down sliding structure. It is slightly lighter in weight and small in size when folded. However, its disadvantage is the front drive wheel structure and the climbing angle can only be less than 6 degrees. Therefore, it is only used on relatively flat roads and has a limited range of use.

[0005] Therefore, it is necessary to propose further solutions to the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a steering linkage mechanism and an electric scooter to overcome the deficiencies in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides a steering linkage mechanism, which includes: a first connecting frame, a second connecting frame, a third connecting frame, a front fork and a handle frame;

[0008] The front hinge hole at one end of the second connecting frame is hingedly connected to the upper hinge hole of the first connecting frame, and the rear hinge hole at the other end is hingedly connected to the front hinge hole at one end of the third connecting frame. The other end of the third connecting frame has a rear hinge hole, and the lower hinge hole of the first connecting frame is connected to the upper hinge hole of the front fork. A bearing hole is also provided on the upper end surface of the front fork, and a vertical shaft is provided in the bearing hole. The lower end of the front fork is pivotally connected to the front wheel, and the handle frame is slidably mounted on the first connecting frame.

[0009] As an improvement of the steering linkage mechanism of the present invention, the first connecting frame is an H-shaped frame, the second connecting frame is a V-shaped frame, and the third connecting frame is a T-shaped frame. The two arms of the V-shaped frame are hingedly connected to the upper hinge holes of the H-shaped frame, and the tip of the V-shaped frame is hingedly connected to the end of the vertical arm of the T-shaped frame.

[0010] As an improvement of the steering linkage mechanism of the present invention, the H-shaped frame is slidably inserted into the vertical pipe of the handle frame.

[0011] As an improvement of the steering linkage mechanism of the present invention, a sliding handle is further provided on the handle frame, and the handle frame is locked with the first connecting frame through a connecting plate and a locking pin.

[0012] As an improvement of the steering linkage mechanism of the present invention, a brake handle is further provided at the upper end of the handle frame.

[0013] As an improvement of the steering linkage mechanism of the present invention, a mop is further connected to the brake handle.

[0014] As an improvement of the steering linkage mechanism of the present invention, the steering linkage mechanism further includes a front panel, a rear panel and an upper panel, the handle frame is accommodated in a space defined by the front panel and the rear panel, and the upper panel is mounted on the brake handle.

[0015] As an improvement of the steering linkage mechanism of the present invention, a headlight and left and right turn signals are also mounted on the front panel.

[0016] As an improvement of the steering linkage mechanism of the present invention, a disc brake pad and a disc brake are also provided on the front wheel.

[0017] To achieve the above-mentioned invention object, the present invention provides an electric scooter, which comprises: a steering linkage mechanism, a folding frame and a dual-brake wheel hub motor;

[0018] The steering linkage mechanism is the steering linkage mechanism as described above, the front hinge hole of the folding frame is hingedly connected to the rear hinge hole at the other end of the third connecting frame, the front wheel seat of the folding frame is pivotally connected to the vertical shaft in the bearing hole, and a rotating three-link mechanism is formed between the steering linkage mechanism and the folding frame. The dual-brake hub motor is installed on the rear wheel of the electric scooter, and the size of the rear wheel is consistent with that of the front wheel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the steering linkage mechanism of the present invention can ensure that the total length of the electric scooter remains unchanged, obtain the longest front and rear wheelbase, greatly improve the driving stability of the whole vehicle, and have the smallest turning radius, so that some narrow spaces such as indoor or elevator rooms can also move freely. At the same time, the front and rear tires are of the same size, which not only ensures a certain obstacle crossing ability, but also facilitates replacement of tires with the same specifications after wear. In addition, the linkage between the steering linkage mechanism and the folding of the frame has the advantages of convenience, safety and reliability, and is convenient for users to tow after folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional exploded schematic diagram of a specific embodiment of the steering linkage mechanism of the present invention;

[0022] Figure 2 is a three-dimensional schematic diagram of the electric scooter of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the three-dimensional exploded view of the electric scooter. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the steering linkage mechanism 100 of the present invention includes: a first connecting frame 4, a second connecting frame 2, a third connecting frame 1, a front fork 3 and a handle frame 6.

[0026] The first connecting frame 4 is vertically arranged relative to the second connecting frame 2 and the third connecting frame 1, and has an upper hinge hole and a lower hinge hole. The second connecting frame 2 and the third connecting frame 1 are horizontally arranged relative to the first connecting frame 4. One end of the second connecting frame 2 and the third connecting frame 1 has a front hinge hole, and the other end has a rear hinge hole.

[0027] The first connecting frame 4, the second connecting frame 2, and the third connecting frame 1 are hingedly connected in the following manner:

[0028] The front hinge hole at one end of the second connecting frame 2 is hingedly connected to the upper hinge hole of the first connecting frame 4, and the rear hinge hole at the other end is hingedly connected to the front hinge hole at one end of the third connecting frame 1. The other end of the third connecting frame 1 has a rear hinge hole, and the lower hinge hole of the first connecting frame 4 is connected to the upper hinge hole of the front fork 3.

[0029] In one embodiment, the first connecting frame 4 is an H-shaped frame, the second connecting frame 2 is a V-shaped frame, and the third connecting frame 1 is a T-shaped frame, wherein the two arms of the V-shaped frame are hingedly connected to the upper hinge holes of the H-shaped frame, and the tip of the V-shaped frame is hingedly connected to the end of the vertical arm of the T-shaped frame.

[0030] The front fork 3 is used to connect the front wheel 14 of the electric scooter. A bearing hole is provided on the upper end surface of the front wheel, and a vertical shaft 5 is provided in the bearing hole. The lower end of the front fork 3 is pivotally connected to the front wheel 14, and a disc brake pad 15 and a disc brake 16 are provided on the front wheel 14. In addition, a fender 17 is provided above the front wheel 14.

[0031] The handle frame 6 is slidably mounted on the first connecting frame 4. In order to adjust the height of the handle frame 6, the H-shaped frame is slidably inserted into the vertical pipe of the handle frame 6. In order to control the height adjustment of the handle frame 6, a sliding handle 7 is also provided on the handle frame 6, and the handle frame 6 is locked with the first connecting frame 4 through a connecting plate 8 and a locking pin 9.

[0032] The upper end of the handle frame 6 is also provided with a brake handle 11, and the brake handle 11 is covered with a handle cover 24. The brake handle 11 is also connected to a mop 10, so that through the mop 10, when the electric scooter is folded, the folded electric scooter can be dragged by towing.

[0033] The steering linkage mechanism further includes a front panel 18, a rear panel 20 and an upper panel 19. The handle frame 6 is accommodated in the space defined by the front panel 18 and the rear panel 20. The upper panel 19 is mounted on the brake handle 11. At this time, a headlight 21 and left and right turn signals 22 are also mounted on the front panel 18. A display screen 23 is integrated on the upper panel 19.

[0034] like Figure 2 , 3 As shown, based on the steering linkage mechanism as described above, the present invention further provides an electric scooter, which includes: a steering linkage mechanism 100, a folding frame 200 and a dual-brake hub motor 300;

[0035] The steering linkage mechanism 100 is the steering linkage mechanism as described above, the front hinge hole of the folding frame 200 is hingedly connected to the rear hinge hole of the other end of the third connecting frame 1, the front wheel 14 seat of the folding frame 200 is pivotally connected to the vertical shaft 5 in the bearing hole, and the front wheel 14 seat between the steering linkage mechanism 100 and the folding frame 200, the third connecting frame 1 and the vertical shaft 5 form a rotating three-link mechanism. The dual-brake hub motor 300 is installed on the rear wheel of the electric scooter, and the size of the rear wheel is consistent with the size of the front wheel 14.

[0036] In summary, the steering linkage mechanism of the present invention can ensure that the total length of the electric scooter remains unchanged, obtain the longest front and rear wheelbase, greatly improve the driving stability of the whole vehicle, and have the smallest turning radius, so that some narrow spaces such as indoor or elevator rooms can also move freely. At the same time, the front and rear tires are of the same size, which not only ensures a certain obstacle crossing ability, but also facilitates replacement of tires with the same specifications after wear. In addition, the linkage between the steering linkage mechanism and the folding of the frame has the advantages of convenience, safety and reliability, and is convenient for users to tow after folding.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steering linkage mechanism, characterized in that: The steering linkage mechanism comprises: a first connecting frame, a second connecting frame, a third connecting frame, a front fork and a handle frame; The front hinge hole at one end of the second connecting frame is hinge-connected to the upper hinge hole of the first connecting frame, and the rear hinge hole at the other end is hinge-connected to the front hinge hole at one end of the third connecting frame. The other end of the third connecting frame has a rear hinge hole, and the lower hinge hole of the first connecting frame is connected to the upper hinge hole of the front fork. A bearing hole is also provided on the upper end surface of the front fork, and a vertical shaft is provided in the bearing hole. The lower end of the front fork is pivotally connected to the front wheel, and the handle frame is slidably mounted on the first connecting frame; The first connecting frame is an H-shaped frame, the second connecting frame is a V-shaped frame, and the third connecting frame is a T-shaped frame, the two arms of the V-shaped frame are hingedly connected to the upper hinge holes of the H-shaped frame, and the tip of the V-shaped frame is hingedly connected to the end of the vertical arm of the T-shaped frame; The handle frame is also provided with a sliding handle, and the handle frame is locked with the first connecting frame through a connecting plate and a locking pin.

2. The steering linkage mechanism according to claim 1, characterized in that: The H-shaped frame is slidably inserted into the vertical pipe of the handle frame.

3. The steering linkage mechanism according to claim 1, characterized in that: A brake handle is also provided at the upper end of the handle frame.

4. The steering linkage mechanism according to claim 3, characterized in that: The brake handle is also connected with a mop.

5. The steering linkage mechanism according to claim 3, characterized in that: The steering linkage mechanism further comprises a front panel, a rear panel and an upper panel. The handle frame is accommodated in a space defined by the front panel and the rear panel, and the upper panel is mounted on the brake handle.

6. The steering linkage mechanism according to claim 5, characterized in that: The front panel is also equipped with a headlight and left and right turn signals.

7. The steering linkage mechanism according to claim 1, characterized in that: The front wheel is also provided with a disc brake pad and a disc brake device.

8. An electric scooter, characterized in that: The electric scooter comprises: a steering linkage mechanism, a folding frame and a dual-brake wheel hub motor; The steering linkage mechanism is the steering linkage mechanism as described in any one of claims 1 to 7, the front hinge hole of the folding frame is hingedly connected to the rear hinge hole at the other end of the third connecting frame, the front wheel seat of the folding frame is pivotally connected to the vertical shaft in the bearing hole, and a rotating three-link mechanism is formed between the steering linkage mechanism and the folding frame, the dual-brake hub motor is installed on the rear wheel of the electric scooter, and the size of the rear wheel is consistent with that of the front wheel.

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