CN215752830U - Frame subassembly and electronic car of riding instead of walk - Google Patents

Abstract

The utility model provides a frame assembly and an electric scooter, wherein the frame assembly comprises a head pipe and a front fork vertical pipe, a first limiting piece is arranged on the inner wall surface of the head pipe, a second limiting piece is arranged on the outer wall surface of the front fork vertical pipe, the front fork vertical pipe penetrates through the head pipe and is pivotally connected with the head pipe, the first limiting piece and the second limiting piece are arranged in parallel along the circumferential direction of the front fork vertical pipe, and the first limiting piece is stopped against the second limiting piece to limit the front fork vertical pipe to rotate relative to the head pipe. The frame assembly has the advantages that the rotation angle of the front fork relative to the head pipe can be limited within a set angle range, the structure is simple, and the manufacturing cost is low.

Description

Frame subassembly and electronic car of riding instead of walk

Technical Field

The utility model relates to the technical field of scooters, in particular to a frame assembly and an electric scooter.

Background

The electric scooter is a new product form after the traditional scooter, and more people start to use the electric scooter at present, and the electric scooter is also regarded as a new portable vehicle. In the related art, when the electric scooter in the driving process turns, the electric scooter is easy to overturn due to the fact that the rotation angle of the front wheels relative to the head pipe of the frame is too large, and the driving safety of the electric scooter is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides a frame assembly which has the advantages that the rotation angle of a front fork relative to a head pipe can be limited within a set angle range, the structure is simple, and the manufacturing cost is low.

The embodiment of the utility model also provides the electric scooter.

The frame assembly comprises a head pipe and a front fork vertical pipe, wherein a first limiting piece is arranged on the inner wall surface of the head pipe; the outer wall surface of the front fork vertical pipe is provided with a second limiting part, the front fork vertical pipe penetrates through the head pipe and is pivotally connected with the head pipe, the first limiting part and the second limiting part are arranged in parallel along the circumferential direction of the front fork vertical pipe, and the first limiting part is stopped against the second limiting part so as to limit the front fork vertical pipe to rotate relative to the head pipe.

According to the frame assembly provided by the embodiment of the utility model, after the front fork vertical tube passes through the head tube and is pivotally connected with the head tube, the first limiting piece can stop against the second limiting piece so as to prevent the front fork vertical tube from continuously rotating relative to the head tube, so that the rotation angle of the front fork vertical tube relative to the head tube is limited within the set angle range. The frame component has the advantages that the first limiting part is arranged on the inner wall surface of the head pipe, the second limiting part is arranged on the outer wall surface of the front fork vertical pipe, the situation that the front wheel connected with the front fork vertical pipe is turned over due to too large rotation angle can be avoided, the structure is simple, and the manufacturing cost is low.

Moreover, the first limiting part and the second limiting part are hidden in the head pipe, and the appearance of the frame assembly is attractive and high in degree.

In some embodiments, the second retaining member includes a first stopper and a second stopper, the first stopper and the second stopper are welded to the outer wall surface of the front fork riser, the first stopper and the second stopper are spaced apart in the circumferential direction of the front fork riser, and the first retaining member is located between the first stopper and the second stopper in the circumferential direction of the front fork riser.

In some embodiments, the head tube includes an outer tube and an inner tube, the inner tube having a length less than a length of the outer tube, the inner tube fitting within the outer tube, the front fork riser passing through the inner tube and pivotally connected to the inner tube.

In some embodiments, the inner tube includes an upper inner tube and a lower inner tube, the upper inner tube and the lower inner tube are spaced apart in the axial direction of the outer tube, and the second stopper is provided on a side of the lower inner tube facing away from the upper inner tube.

In some embodiments, the first retaining member comprises a retaining rib welded to at least one of the lower inner tube and the outer tube.

In some embodiments, the lower inner tube is provided with a limiting groove, and at least part of the limiting rib is matched in the limiting groove.

In some embodiments, the limiting groove is formed in the outer wall surface of the lower inner pipe, and the limiting groove penetrates through the lower inner pipe along the axial direction of the lower inner pipe.

In some embodiments, the outer tube has an inner circumferential contour of a cross section of an elliptical shape, the inner tube has a cross section of a circular shape, and the outer wall surface of the inner tube is fitted to the inner wall surface of the outer tube.

In some embodiments, the frame assembly further comprises an upper bowl group bearing and a lower bowl group bearing, the upper bowl group bearing is disposed between the upper inner tube and the front fork stem, the lower bowl group bearing is disposed between the lower inner tube and the front fork stem, and the upper bowl group bearing and the lower bowl group bearing are used for rotatably supporting the front fork stem.

In some embodiments, the frame assembly further comprises a support seat, the lower end of the front fork vertical tube is connected with a front fork body, the support seat is sleeved on the front fork vertical tube, the lower end of the support seat is connected with the front fork body, and the upper end of the support seat abuts against the lower bowl group bearing.

An electric scooter according to an embodiment of the second aspect of the present invention includes a frame assembly as described in any of the above embodiments.

The technical advantages of the electric scooter according to the embodiment of the utility model are the same as those of the frame assembly, and are not described herein again.

Drawings

FIG. 1 is a longitudinal cross-sectional view of a vehicle frame assembly according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a vehicle frame assembly according to an embodiment of the present invention.

FIG. 3 is an isometric view of a vehicle frame assembly according to an embodiment of the utility model.

FIG. 4 is a schematic view of a frame assembly according to an embodiment of the present invention, except for the head tube.

FIG. 5 is a schematic view of an outer tube in a frame assembly according to an embodiment of the present invention.

FIG. 6 is a schematic view of an upper inner tube in a frame assembly according to an embodiment of the present invention.

FIG. 7 is a schematic view of a restraint bar in the vehicle frame assembly according to an embodiment of the present invention.

Reference numerals:

the frame assembly 100 is provided with a plurality of frame members,

a head tube 1, an outer tube 101, an upper inner tube 102, a lower inner tube 103, a front fork vertical tube 2, a first limiting piece 3, a first stop block 301,

the support comprises a second stop block 302, a second limiting part 4, a limiting rib 401, an upper bowl group bearing 5, a lower bowl group bearing 6, a front fork body 7 and a support seat 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A vehicle frame assembly 100 according to an embodiment of the present invention is described below in conjunction with fig. 1-7.

As shown in fig. 1, a frame assembly 100 according to an embodiment of the first aspect of the present invention includes a head pipe 1 and a front fork riser 2. The inner wall surface of the head pipe 1 is provided with a first limiting part 3, the outer wall surface of the front fork vertical pipe 2 is provided with a second limiting part 4, and the front fork vertical pipe 2 penetrates through the head pipe 1 and is pivotally connected with the head pipe 1. The first limiting part 3 and the second limiting part 4 are arranged in parallel along the circumferential direction of the front fork vertical tube 2, and the first limiting part 3 abuts against the second limiting part 4 to limit the front fork vertical tube 2 to rotate relative to the head tube 1.

If the first limiting member 3 has a first surface and a second surface opposite to each other along the circumferential direction of the front fork stem 2, the first limiting member 3 can stop the front fork stem 2 from rotating by a large angle in the forward direction (e.g., clockwise) relative to the head pipe 1 by the first surface abutting against the second limiting member 4, and the first limiting member 3 can also stop the front fork stem 2 from rotating by a large angle in the reverse direction (e.g., counterclockwise) relative to the head pipe 1 by the second surface abutting against the second limiting member 4.

According to the frame assembly 100 of the embodiment of the utility model, after the front fork vertical tube 2 passes through the head tube 1 and is pivotally connected with the head tube 1, the first limiting member 3 can stop against the second limiting member 4 to prevent the front fork vertical tube 2 from continuously rotating relative to the head tube 1, thereby ensuring that the rotation angle of the front fork vertical tube 2 relative to the head tube 1 is limited within a set angle range. The first limiting part 3 is arranged on the inner wall surface of the head pipe 1, and the second limiting part 4 is arranged on the outer wall surface of the front fork vertical pipe 2, so that the phenomenon that the front wheel connected with the front fork vertical pipe 2 is turned over due to too large rotation angle can be avoided, the frame assembly 100 is simple in structure, and the manufacturing cost is low.

Moreover, the first limiting member 3 and the second limiting member 4 are both hidden inside the head pipe 1, and the appearance of the frame assembly 100 is attractive.

For ease of understanding, an arrow a in fig. 2 shows a front-rear direction of the frame assembly 100 according to the embodiment of the present invention, and an arrow B in fig. 2 shows a left-right direction of the frame assembly 100 according to the embodiment of the present invention.

In some embodiments, the second retaining member 4 includes a first stopper 301 and a second stopper 302, and the first stopper 301 and the second stopper 302 are welded to the outer wall surface of the front fork stem 2 and have the same height. The first stopper 301 and the second stopper 302 are spaced apart in the circumferential direction of the front fork stem 2, and the first retaining member 3 is located between the first stopper 301 and the second stopper 302 in the circumferential direction of the front fork stem 2.

As shown in fig. 2, when the electric scooter moves straight forward, the first stopper 301 and the second stopper 302 are respectively located at the right side and the left side of the first limiting member 3, and at this time, the first limiting member 3 is located at the initial position. When the first limiting member 3 abuts against the first stopper 301 from the initial position, the rotation angle of the front fork vertical tube 2 relative to the head tube 1 is equal to the rotation angle of the front fork vertical tube 2 relative to the head tube 1 when the first limiting member 3 abuts against the second stopper 302 from the initial position. Namely, the maximum left-turn angle and the maximum right-turn angle of the front wheel are the same, so that the set angle range of the front fork vertical tube 2 rotating relative to the head tube 1 is larger on the basis that the electric scooter does not overturn.

Or, the second limiting member 4 may also be an arc-shaped stopper, and the stopper can also be used to stop the first limiting member 3 at the first end surface and the second end surface of the front fork stem 2 opposite to each other in the circumferential direction so as to ensure that the rotation angle of the front fork stem 2 relative to the head pipe 1 is limited within a set angle range.

In some embodiments, the head pipe 1 includes an outer pipe 101 and an inner pipe having a length smaller than that of the outer pipe 101, the inner pipe being fitted inside the outer pipe 101, and the front fork riser 2 passing through the inner pipe and being pivotably connected to the inner pipe. From this, through setting up the inner tube, make things convenient for but front fork standpipe 2 and head pipe 1 pivot to link to each other, length through setting up the inner tube is less than the length of outer tube 101, and then makes head pipe 1's average wall thickness littleer, when having alleviateed head pipe 1's weight, the volume of head pipe 1 internal cavity is also bigger, the linking to each other of the internal face of first locating part 3 and head pipe 1 of being convenient for.

In some embodiments, the inner tube includes an upper inner tube 102 and a lower inner tube 103, the upper inner tube 102 and the lower inner tube 103 are spaced apart in the axial direction of the outer tube 101, and the second retaining member 4 is disposed on a side of the lower inner tube 103 facing away from the upper inner tube 102.

As shown in fig. 1, the upper end surface of the upper inner tube 102 is coplanar with the upper end surface of the outer tube 101, the lower end surface of the lower inner tube 103 is higher than the lower end surface of the outer tube 101, and at least a part of the first stopper 3 is located on the inner wall surface of the outer tube 101 between the lower end surface of the lower inner tube 103 and the lower end surface of the outer tube 101. After the front fork stem 2 is pivotally connected to the head tube 1 through the upper inner tube 102 and the lower inner tube 103, the second limiting member 4 is hidden in the outer tube 101 and located below the lower inner tube 103, so that the first limiting member 3 can stop against the second limiting member 4, and the appearance of the frame assembly 100 is beautiful.

In some embodiments, the first retaining member 3 includes a retaining rib 401, and the retaining rib 401 is welded to at least one of the lower inner tube 103 and the outer tube 101.

As shown in fig. 7, the limiting rib 401 is a square columnar structure, the limiting rib 401 extends along the axial direction of the front fork vertical tube 2, and the limiting rib 401 is welded with the lower inner tube 103 and the outer tube 101, so that the connection strength between the limiting rib 401 and the head tube 1 is ensured, the limiting part 401 cannot be loosened or fall off due to the overlarge impact force of the first stopper 301/the second stopper 302, and the limiting stability of the limiting rib 401 is stronger.

In some embodiments, the lower inner tube 103 is provided with a limiting groove, and at least a portion of the limiting rib 401 is fitted in the limiting groove.

The shape of cross section of spacing groove and spacing muscle 401's shape of cross section phase-match, spacing muscle 401's upper end is inserted and is established at the spacing inslot, and when spacing muscle 401 stopped to first dog 301 second dog 302, the impact force that spacing muscle 401 received can be shared to the lateral wall of spacing groove, and then spacing muscle 401 is more stable with being connected of the welding department of lower inner tube 103 and outer tube 101, more be difficult for droing, and spacing muscle 401 is spacing more stable.

In some embodiments, a stopper groove is formed on an outer wall surface of the lower inner tube 103, and the stopper groove penetrates the lower inner tube 103 in an axial direction of the lower inner tube 103.

When the lower inner tube 103 is welded in the outer tube 101, a limiting channel is formed between the limiting groove and the inner wall surface of the outer tube 101, the upper end of the limiting rib 401 penetrates through the limiting channel and protrudes out of the upper portion of the lower inner tube 103, and the lower end of the limiting rib 401 is located below the lower inner tube 103 and is used for being abutted against the first stop block 301 and the second stop block 302. Therefore, the limiting function of the lower inner tube 103 on the limiting rib 401 is better.

In some embodiments, as shown in fig. 5 and 6, the outer tube 101 has an elliptical cross-sectional inner peripheral profile, the inner tube has a circular cross-sectional inner peripheral profile, and the outer wall surface of the inner tube conforms to the inner wall surface of the outer tube 101.

When the upper inner tube 102 and the lower inner tube 103 are assembled in the outer tube 101, the outer tube 101 with an elliptical inner peripheral profile has a limiting effect on the upper inner tube 102 and the lower inner tube 103, so that the upper inner tube 102, the lower inner tube 103 and the outer tube 101 can be prevented from rotating relatively, and the reliability of the frame assembly 100 during operation is improved.

In some embodiments, the frame assembly 100 further comprises an upper bowl group bearing 5 and a lower bowl group bearing 6, the upper bowl group bearing 5 is disposed between the upper inner tube 102 and the front fork stem 2, the lower bowl group bearing 6 is disposed between the lower inner tube 103 and the front fork stem 2, and the upper bowl group bearing 5 and the lower bowl group bearing 6 are used for rotatably supporting the front fork stem 2.

Specifically, the upper bowl group bearing 5 and the lower bowl group bearing 6 are coaxially and separately disposed in the upper inner tube 102 and the lower inner tube 103, an outer wall surface of the upper bowl group bearing 5 is attached to an inner wall surface of the upper inner tube 102, and an outer wall surface of the lower bowl group bearing 6 is attached to an inner wall surface of the lower inner tube 103. The inner wall surface of the upper bowl group bearing 5 and the inner wall surface of the lower bowl group bearing 6 are both attached to the outer wall surface of the front fork vertical tube 2. Therefore, the upper bowl group bearing 5 and the lower bowl group bearing 6 ensure the stability of the front fork vertical tube 2 in rotating relative to the head tube 1.

In some embodiments, frame assembly 100 further includes a support base 8, and a front fork body 7 is attached to a lower end of front fork riser 2. The supporting seat 8 is sleeved on the front fork vertical tube 2, the lower end of the supporting seat 8 is connected with the front fork body 7, and the upper end of the supporting seat 8 is stopped against the lower bowl group bearing 6.

Specifically, the lower end of the support seat 8 is welded to the front fork body 7, thereby ensuring the relative fixation of the support seat 8 and the front fork stem 2. The support base 8 abuts against the lower bowl bearing 6 through the upper end, thereby restricting the axial movement of the head tube 1 relative to the front fork riser 2.

An electric scooter according to an embodiment of the second aspect of the present invention includes the frame assembly 100 of any of the above embodiments.

Technical advantages of the electric scooter according to the embodiment of the present invention are the same as those of the frame assembly 100 described above, and thus, detailed description thereof is omitted.

In some embodiments, the electric vehicle is an electric scooter.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (11)

1. A frame assembly, comprising:

the inner wall surface of the head pipe is provided with a first limiting piece; and

the outer wall surface of the front fork vertical pipe is provided with a second limiting part, the front fork vertical pipe penetrates through the head pipe and is connected with the head pipe in a pivoting mode, the first limiting part and the second limiting part are arranged in parallel along the circumferential direction of the front fork vertical pipe, and the first limiting part abuts against the second limiting part to limit the front fork vertical pipe to rotate relative to the head pipe.

2. The frame assembly of claim 1, wherein said second retaining member comprises a first stop and a second stop, said first stop and said second stop being welded to an outer wall surface of said fork riser, said first stop and said second stop being spaced apart in a circumferential direction of said fork riser, said first retaining member being located between said first stop and said second stop in the circumferential direction of said fork riser.

3. The frame assembly of claim 1, wherein the head tube includes an outer tube and an inner tube, the inner tube having a length less than a length of the outer tube, the inner tube fitting within the outer tube, the front fork riser passing through the inner tube and pivotally connected to the inner tube.

4. The frame assembly of claim 3, wherein the inner tube includes an upper inner tube and a lower inner tube, the upper inner tube and the lower inner tube being spaced apart in an axial direction of the outer tube, the second retaining member being provided on a side of the lower inner tube facing away from the upper inner tube.

5. The frame assembly of claim 4, wherein the first retaining member comprises a retaining rib welded to at least one of the lower inner tube and the outer tube.

6. The frame assembly of claim 5, wherein the lower inner tube is provided with a limiting groove, and at least part of the limiting rib is fitted in the limiting groove.

7. The frame assembly according to claim 6, wherein the stopper groove is provided on an outer wall surface of the lower inner tube, and the stopper groove penetrates the lower inner tube in an axial direction of the lower inner tube.

8. The frame assembly of claim 4, wherein the outer tube has an elliptical cross-sectional inner peripheral profile and the inner tube has a circular cross-sectional inner peripheral profile, the outer wall surface of the inner tube conforming to the inner wall surface of the outer tube.

9. The frame assembly of claim 8, further comprising an upper bowl group bearing and a lower bowl group bearing, wherein the upper bowl group bearing is disposed between the upper inner tube and the front fork stem, the lower bowl group bearing is disposed between the lower inner tube and the front fork stem, and the upper bowl group bearing and the lower bowl group bearing are configured to rotatably support the front fork stem.

10. The frame assembly of claim 9, further comprising a support base, wherein a front fork body is connected to a lower end of the front fork stem, the support base is sleeved on the front fork stem, the lower end of the support base is connected to the front fork body, and an upper end of the support base abuts against the lower bowl group bearing.

11. An electric scooter comprising a frame assembly according to any one of claims 1 to 10.

Images