CN217705359U - Hollow wheel and electric scooter with same - Google Patents

Abstract

The embodiment of the utility model provides a cavity wheel and electronic car of riding instead of walk. The hollow wheel hub and the support ring of the hollow wheel realize relative rotation under the action of the bearing, the technical scheme that the conventional rotating shaft realizes relative rotation with the wheel hub through the deep groove bearing matched in the central hole of the wheel hub is replaced, and the hollow wheel hub does not need to be matched with the rotating shaft, so that the hollow wheel hub is provided with a large central through hole, and the hollow wheel is technically and conceptually inductive in modeling. Furthermore, the embodiment of the utility model provides an in the cavity wheel hub of cavity wheel does not have the spoke, can avoid the foreign matter to invade to its pivoted influence, has reduced the possibility of occurence of failure, has improved the security performance of electronic car of riding instead of walk.

Description

Hollow wheel and electric scooter with same

Technical Field

The utility model belongs to the technical field of the wheel technique and specifically relates to an electronic car of riding instead of walk that cavity wheel and have this cavity wheel is related to.

Background

In the related art, wheels of electric vehicles such as electric scooters, unicycles and electric motorcycles generally rotate through a rotating shaft and a deep groove bearing matched between the rotating shaft and the wheel hole, and the wheel hole on the hub of the wheel is generally small in diameter due to the fact that the wheel hole needs to be matched with the rotating shaft, is relatively common in design and has no novel appearance. And this kind of wheel hub generally has the spoke, in case there is the foreign matter entering at the rotatory in-process of wheel, the striking that foreign matter and spoke produced damages the wheel easily, can influence the rotation of wheel even, leads to the wheel to brake in the twinkling of an eye and causes the accident of overturning, threatens driver's personal safety.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a have science and technology in appearance and feel, the cavity wheel that the security performance is good.

The embodiment of the utility model also provides an electric scooter, and this electric scooter has above-mentioned cavity wheel.

According to the utility model discloses cavity wheel, include: the supporting ring comprises a bearing mounting ring and a connecting frame used for being connected with a vehicle body, the connecting frame is connected with the bearing mounting ring, and the bearing is sleeved on the bearing mounting ring; the hollow wheel hub is in a hollow circular ring shape, the hollow wheel hub is sleeved on the bearing, and the bearing is matched between the hollow wheel hub and the bearing mounting ring in the radial direction of the hollow wheel so that the hollow wheel hub can rotate relative to the support ring; and the tire is in a hollow circular ring shape, is sleeved on the hollow hub and is connected with the hollow hub.

According to the embodiment of the utility model provides a cavity wheel hub realizes rotating relatively with the lock ring under the effect of bearing in the cavity wheel, has replaced pivot commonly used at present to realize through the deep groove bearing of cooperation in wheel hub's centre bore with wheel hub relative pivoted technical scheme, because cavity wheel hub need not with the pivot cooperation, consequently it has great central through-hole for there is science and technology to feel, conceptual sense in the molding of cavity wheel. In addition, the wheel hub that has the spoke common among the correlation technique receives the influence because of the invasion of foreign matter easily at the pivoted in-process, thereby can stop the rotation in the twinkling of an eye even and take place the accident of overturning, the embodiment of the utility model provides an in the hollow wheel hub of cavity wheel do not have the spoke, can avoid the foreign matter to invade its pivoted influence, reduced the possibility of emergence accident, improved the security performance of electronic car of riding instead of walk.

Therefore, the embodiment of the utility model provides a cavity wheel has science and technology in the outward appearance and feels, the notion feels, has the advantage that factor of safety is high in the performance.

In addition, according to the utility model discloses a cavity wheel still has following additional technical characterstic:

in some embodiments, the hollow hub includes a body, a first mounting cover, and a second mounting cover, the body is annular, the first mounting cover, the body, and the second mounting cover are sequentially arranged and sequentially connected in an axial direction of the hollow wheel, the body is sleeved on the bearing, an outer circumferential surface of the bearing abuts against an inner circumferential surface of the body, and the bearing is located between the first mounting cover and the second mounting cover in the axial direction of the hollow wheel and is opposite to any one of the first mounting cover and the second mounting cover in the axial direction of the hollow wheel.

In some embodiments, the first mounting cap is integrally formed with the body and the second mounting cap is removably attached to the body.

In some embodiments, the hollow wheel further comprises a first connecting plate and a second connecting plate for connecting to a vehicle body, the connecting frame has a first end and a second end opposite to each other in the axial direction of the hollow wheel, the first end and the second end are respectively located on both sides of the bearing mounting ring in the axial direction of the hollow wheel, the first end is connected to the first connecting plate, and the second end is connected to the second connecting plate.

In some embodiments, the bearing mounting ring has first and second opposite end faces in an axial direction of the hollow wheel, the first and second end faces being parallel to each other and perpendicular to the axial direction of the hollow wheel, the connection frame has third and fourth opposite end faces in the axial direction of the hollow wheel, the third end face having an included angle with each of the first and second end faces, the third and fourth end faces being symmetrical with respect to the bearing mounting ring.

In some embodiments, the connecting frame is a cylindrical structure, the connecting frame has a first opening and a second opening opposite to each other in the axial direction of the hollow wheel, the first connecting plate covers the first opening, and the second connecting plate covers the second opening.

In some embodiments, the connecting frame is connected to a part of an inner peripheral surface of the bearing mounting ring, the part of the inner peripheral surface of the bearing mounting ring surrounds a part of a circumferential direction of the bearing mounting ring, and a cross-sectional area of a figure surrounded by outer edges of the connecting frame is smaller than a cross-sectional area of a figure surrounded by inner edges of the bearing mounting ring.

In some embodiments, the circumferential angle subtended by the inner peripheral surface of the said part of the bearing mounting ring is less than or equal to the circumferential angle subtended by the inner peripheral surface of the remaining part of the bearing mounting ring.

According to the utility model discloses electric bicycle, include: a vehicle body; and according to the utility model discloses above-mentioned arbitrary embodiment provides the cavity wheel, the cavity wheel the link links to each other with the automobile body.

In some embodiments, the vehicle body includes a frame including a first link arm and a second link arm, the hollow wheel being located between the first link arm and the second link arm in an axial direction thereof, the first link arm being connected to the link frame through the first link plate, and the second link arm being connected to the link frame through the second link plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a three-dimensional view of a hollow wheel according to an embodiment of the invention.

Fig. 2 is a cross-sectional view of a hollow wheel according to an embodiment of the present invention.

Fig. 3 is a three-dimensional view of a hollow hub according to an embodiment of the present invention.

Fig. 4 is a side view of a hollow hub according to an embodiment of the present invention.

Fig. 5 is a three-dimensional view of a bearing according to an embodiment of the invention.

Fig. 6 is a three-dimensional view of a support halo according to an embodiment of the invention.

Fig. 7 is a front view of a support ring according to an embodiment of the invention.

Fig. 8 is a side view of a support ring according to an embodiment of the invention.

Fig. 9 is a front view of a first connecting plate (second connecting plate) according to an embodiment of the present invention.

Reference numerals are as follows:

a hollow wheel 100;

a support ring 110; a bearing mounting ring 111; a first end surface 1111; a second end face 1112; a connecting frame 112; a first end 1121; a second end 1122; a third end face 1123; a fourth end face 1124; a bearing 120; a hollow hub 130; a body 131; a first mounting cover 132; a second mounting cover 133; a connecting post 134; a tire 140; a first connection plate 151; a second connecting plate 152; a cavity 160; a frame 200; a first connecting arm 210; an avoidance slot 220; the brake pad 300.

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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A hollow wheel 100 and an electric scooter including such a hollow wheel 100 according to an embodiment of the present invention will be described below with reference to fig. 1 to 9. The electric scooter includes a body and hollow wheels 100 connected to the body.

The hollow wheel 100 includes a support ring 110, a bearing 120, a hollow hub 130, and a tire 140. The support ring 110 includes a bearing mounting ring 111 and a connecting frame 112 connected to the bearing mounting ring 111, and the connecting frame 112 is used for connecting to the body of the electric scooter. The bearing mounting ring 111 is annular and is used for supporting the bearing 120, and the bearing 120 is sleeved on the bearing mounting ring 111, that is, the inner circumferential surface of the bearing 120 is abutted against the outer circumferential surface of the bearing mounting ring 111, it can be understood that the inner circumferential surface of the bearing 120 should be in interference fit with the outer circumferential surface of the bearing mounting ring 111.

The hollow hub 130 has a hollow circular ring shape. As shown in fig. 3 and 4, the hollow hub 130 has a larger through hole in the center, the diameter of the central through hole of the conventional hub is generally between 8mm and 12mm, and the diameter of the central through hole of the hollow hub 130 in the embodiment of the present invention is greatly increased, for example, the diameter can be increased to 100mm, under the condition that the peripheral dimension is unchanged. The hollow hub 130 is sleeved on the bearing 120, that is, the inner circumferential surface of the hollow hub 130 is abutted against the outer circumferential surface of the bearing 120 and is in interference fit. Thereby, the bearing 120 is fitted between the hollow hub 130 and the bearing mount ring 111 in the radial direction of the hollow wheel 100 so that the hollow hub 130 can rotate relative to the support ring 110. The hollow annular tire 140 is sleeved on the hollow hub 130 and connected with the hollow hub 130.

During the running of the electric scooter, the hollow hub 130 rotates relative to the support ring 110 under the action of the bearing 120, the tire 140 rotates together with the hollow hub 130, and the relative position relationship between the support ring 110 and the scooter body is kept unchanged because the support ring 110 is connected with the scooter body through the connecting frame 112, namely, the support ring 110 does not rotate during the movement.

According to the embodiment of the utility model provides a cavity wheel hub realizes rotating relatively with the lock ring under the effect of bearing in the cavity wheel, has replaced pivot commonly used at present to realize through the deep groove bearing of cooperation in wheel hub's centre bore with wheel hub relative pivoted technical scheme, because cavity wheel hub need not with the pivot cooperation, consequently it has great central through-hole for there is science and technology to feel, conceptual sense in the molding of cavity wheel. In addition, the wheel hub that has the spoke common among the correlation technique receives the influence because of the invasion of foreign matter easily at the pivoted in-process, thereby can stop the rotation in the twinkling of an eye even and take place the accident of overturning, the embodiment of the utility model provides an in hollow wheel hub of cavity wheel does not have the spoke, can avoid the foreign matter to invade its pivoted influence, has reduced the possibility of occurence of failure, has improved the security performance of electronic car of riding instead of walk.

Therefore, the embodiment of the utility model provides a cavity wheel has science and technology in the outward appearance and feels, the notion feels, has the advantage that factor of safety is high in the performance.

The hollow wheel 100 and the electric scooter including the hollow wheel 100 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 9. The hollow wheel 100 includes a support ring 110, a bearing 120, a hollow hub 130, and a tire 140. The support ring 110 includes a bearing mounting ring 111 and a connection frame 112. The hollow wheel 100 is connected with the body of the electric scooter through the connecting frame 112, the tire 140 is sleeved on the hollow wheel hub 130 and connected with the hollow wheel hub 130, the hollow wheel hub 130 is sleeved on the bearing mounting ring 111, and the bearing 120 is matched between the hollow wheel hub 130 and the bearing mounting ring 111 so that the hollow wheel hub 130 can rotate relative to the bearing mounting ring 111. The central axis of each of the bearing mount 111, the bearing 120, the hollow hub 130, the tire 140, and the hollow wheel 100 coincide.

As shown in fig. 2, the hollow hub 130 includes a body 131, a first mounting cover 132, and a second mounting cover 133. The body 131 is annular, the body 131 is a main portion of the hollow hub 130, a central axis of the annular body 131 coincides with a central axis of the hollow wheel 100, an inner circumferential surface of the body 131 abuts against an outer circumferential surface of the bearing 120 and is in interference fit with the outer circumferential surface, that is, the body 131 is sleeved on the bearing 120.

The body 131 has opposite ends in the axial direction of the hollow wheel 100, and a first mounting cover 132 and a second mounting cover 133 are connected to the ends of the body 131 and extend inward, respectively. Here, "inwardly extending" means extending in a direction toward the center axis of the hollow wheel 100. Thus, the first mounting cover 132, the body 131, and the second mounting cover 133 are sequentially arranged and connected in the axial direction of the hollow wheel 100. The inner peripheral surface of the body 131 abuts against the outer peripheral surface of the bearing 120, and therefore the bearing 120 is located between the first mounting cover 132 and the second mounting cover 133 in the axial direction of the hollow wheel 100. Also, the bearing 120 is opposed to each of the first mounting cover 132 and the second mounting cover 133 in the axial direction of the hollow wheel 100. The first and second mounting covers 132 and 133 function to protect the bearing 120 from the intrusion of foreign substances.

In the present embodiment, the bearing 120 is a thin-walled bearing 120, so that the volume ratio of the hollow wheel 100 occupied by the bearing 120 is smaller, and the space between the body 131 and the bearing mounting ring 111 is also smaller. Such an arrangement is beneficial to reducing the weight and volume of the hollow wheel 100, and makes the hollow wheel 100 experience better visually. As shown in fig. 2, the number of the bearings 120 is two, and the two bearings 120 are arranged at intervals in the axial direction of the hollow wheel 100, and it is understood that, in other embodiments, the number of the bearings 120 may be multiple, and the multiple bearings 120 are arranged at intervals in the axial direction of the hollow wheel 100.

In the present embodiment, the first mounting cover 132 is integrally formed with the body 131, and the second mounting cover 133 is detachably coupled to the body 131, so that the assembly of the hollow wheel 100 is facilitated. Specifically, the assembly steps of the hollow wheel 100 in this embodiment are as follows: the second mounting cover 133 is detached from the body 131, the bearing 120 and the support ring 110 are fitted into the hollow hub 130 from the end of the body 131 connected to the second mounting cover 133 in the axial direction of the hollow wheel 100, and the second mounting cover 133 is mounted on the body 131. Alternatively, the second mounting cover 133 is coupled to the body 131 using mounting bolts. In other embodiments, both the first mounting cover 132 and the second mounting cover 133 may be removably coupled to the body 131.

To facilitate connection to the vehicle body, as shown in fig. 6 to 8, the connecting frame 112 extends in the axial direction of the hollow wheel 100, and has a first end 1121 and a second end 1122 opposite to each other in the axial direction of the hollow wheel 100. The first end 1121 and the second end 1122 of the connecting bracket 112 are located on both sides of the bearing mounting ring 111. That is, the length of the link frame 112 in the axial direction of the hollow wheel 100 is larger than the length of the bearing mount ring 111 in the axial direction of the hollow wheel 100, and both ends of the link frame 112 respectively protrude from the bearing mount ring 111 so as to be connected to the vehicle body.

The hollow wheel 100 further includes a first connection plate 151 and a second connection plate 152 for connecting to the vehicle body. The first end 1121 of the link frame 112 is connected to the first link plate 151, the second end 1122 of the link frame 112 is connected to the second link plate 152, and the first link plate 151 and the second link plate 152 are connected to the vehicle body, so that the link frame 112 is connected to the vehicle body through the first link plate 151 and the second link plate 152, and the hollow wheel 100 is mounted to the vehicle body.

Further, as shown in fig. 1, the body of the electric scooter includes a frame 200, and the frame 200 includes a first connecting arm 210 and a second connecting arm (not shown in the drawings) opposed in the axial direction of the hollow wheel 100, and the hollow wheel 100 is located between the first connecting arm 210 and the second connecting arm in the axial direction thereof and connected to each of the first connecting arm 210 and the second connecting arm. Specifically, as shown in fig. 1, the first connecting arm 210 is connected to the connecting frame 112 by a first connecting plate 151, and the second connecting arm is connected to the connecting frame 112 by a second connecting plate 152.

In order to better fit the hollow wheel 100 without affecting the rotation thereof, an avoiding groove 220 is formed on the frame 200 between the first connecting arm 210 and the second connecting arm, and a part of the hollow wheel 100 extends into the avoiding groove 220, so that the fit between the frame 200 and the hollow wheel 100 is more beautiful and reasonable. It will be appreciated that for proper operation of hollow wheel 100, other locations of hollow wheel 100 are not in contact with frame 200 except at the junction of first link plate 151 and second link plate 152.

Preferably, as shown in fig. 9, the first connection plate 151 and the second connection plate 152 have a plate-shaped structure with corners, and a portion connected to the frame 200 and a portion connected to the first end 1121 of the connection frame 112 are at an angle, taking the first connection plate 151 as an example.

Alternatively, the first connection plate 151 and the second connection plate 152 are connected to the frame 200 by connection bolts, and are connected to the connection frame 112 by connection bolts, so as to facilitate the detachment and installation of the hollow wheel 100.

As shown in fig. 6 to 8, in the present embodiment, the connecting frame 112 is a cylindrical structure, and a cavity is formed in the middle of the connecting frame 112, and the connecting frame 112 further has a first opening and a second opening opposite to each other in the axial direction of the hollow wheel 100, and both the first opening and the second opening communicate with the cavity. Such an arrangement facilitates reducing the weight of the hollow wheel 100. Preferably, the first connection plate 151 covers the first opening, and the second connection plate 152 covers the second opening, so as to prevent foreign materials from entering the middle cavity of the connection frame 112.

Further, as shown in fig. 7, a part of the outer peripheral surface of the link frame 112 is connected to a part of the inner peripheral surface of the bearing mount ring 111, and the part of the inner peripheral surface of the bearing mount ring 111 surrounds a part of the circumferential direction of the bearing mount ring 111. The circumferential direction of the bearing mounting ring 111 refers to a circumferential direction which is centered on the central axis of the bearing mounting ring 111, and the whole circumferential direction corresponds to a full circle, that is, the circumferential angle corresponding to the whole circumferential direction is 360 degrees, and the circumferential angle corresponding to a part of the circumferential direction is less than 360 degrees. The part of the inner circumferential surface of the bearing mount ring 111 is directed circumferentially around the part of the bearing mount ring 111; the portion of the bearing mount ring 111 corresponds to a circumferential angle of less than 360 ° in the circumferential direction of the bearing mount ring 111.

The cross-sectional area of the pattern defined by the outer edges of the connecting frame 112 is smaller than the cross-sectional area of the pattern defined by the inner edges of the bearing collar 111. As an example, the inner edge of the circular ring-shaped bearing mounting ring 111 is circular, that is, a cavity with a circular cross section is formed in the middle of the bearing mounting ring 111, since the connecting frame 112 is connected to the inner circumferential surface of the bearing mounting ring 111, the connecting frame 112 occupies a part of the circular cavity, and the rest part forms the irregularly-shaped cavity 160. Preferably, a part of the circular cavity occupied by the connecting frame 112 has a smaller volume than the cavity 160, that is, the cross-sectional area of the figure surrounded by the outer edges of the connecting frame 112 is smaller than the cross-sectional area of the cavity 160, so that the existence of the connecting frame 112 is lower, and the technological sense of the hollow wheel 100 is stronger.

Preferably, the circumferential angle of the part of the inner circumferential surface of the bearing mounting ring 111 is smaller than or equal to the circumferential angle of the other part of the inner circumferential surface of the bearing mounting ring 111. The sum of the circumferential angle of the inner circumferential surface of the one portion and the circumferential angle of the inner circumferential surface of the other portion is 360 deg. The portion of the inner circumferential surface of the bearing retainer 111 subtends a circumferential angle of less than 180. Preferably, the circumferential angle of the inner circumferential surface of the portion of the bearing mounting ring 111 is smaller than 120 °, so that the connecting frame 112 is less likely to be present and the hollow wheel 100 is more likely to be technically perceived.

As shown in fig. 8, in the present embodiment, the bearing mount ring 111 has a regular annular structure having a first end surface 1111 and a second end surface 1112 opposite to each other in the axial direction of the hollow wheel 100. The first end surface 1111 and the second end surface 1112 are parallel to each other and perpendicular to the axial direction of the hollow wheel 100. Further, the connecting frame 112 has opposite third and fourth end surfaces 1123, 1124 in the axial direction of the hollow wheel 100, it being understood that the third end surface 1123 is an end surface of the first end 1121 of the connecting frame 112 and the fourth end surface 1124 is an end surface of the second end 1122 of the connecting frame 112. The third end surface 1123 is angled with respect to each of the first and second end surfaces 1111, 1112, and the third and fourth end surfaces 1123, 1124 are symmetrical with respect to the bearing mounting ring 111. Due to the design, the connecting bolt can be prevented from being subjected to shearing force, the included angle is an acute angle, and the size of the included angle can be designed according to the appearance without limitation.

In some embodiments, the embodiment of the utility model provides an electronic car of riding instead of walk still includes brake block 300 and brake mechanism, and brake block 300 links to each other with cavity wheel hub 130, specifically, is formed with a plurality of spliced poles 134 on the side that is close to second connecting plate 152 of cavity wheel hub 130, and spliced pole 134 is used for linking to each other with the brake block, and spliced pole 134 has the centre bore, is equipped with the internal thread on the inner wall of centre bore. Specifically, the connecting posts 134 are arranged around the circumference of the hollow hub 130, the brake pad 300 is of a circular-ring-shaped sheet structure, a plurality of connecting holes are formed in the brake pad 300, the connecting holes and the connecting posts are arranged in a one-to-one correspondence, and connecting bolts penetrate through the connecting holes and extend into central holes of the connecting posts to be screwed, so that the brake pad is connected with the hollow hub 130. Preferably, a plurality of connecting columns are arranged at equal intervals in the circumferential direction of the hollow hub 130, and a plurality of round holes are arranged at equal intervals in the circumferential direction of the brake pad.

As shown in fig. 2, the brake pad 300 is located between the first connecting plate 151 and the second connecting plate 152 in the axial direction of the hollow wheel 100, and is disposed closer to the second connecting plate 152. The center axis of the brake pad 300 coincides with the center axis of the hollow wheel 100. The brake mechanism is coupled to the frame 200 and cooperates with the brake pads 300 to effect braking of the hollow wheel 100.

In the description of the present invention, it is to be understood that the terms "center", "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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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 to implicitly indicate 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," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. 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" or the like mean that a particular 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, 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 without departing from the scope of the present invention.

Claims (10)

1. A hollow wheel, comprising:

the supporting ring comprises a bearing mounting ring and a connecting frame used for being connected with a vehicle body, the connecting frame is connected with the bearing mounting ring, and the bearing is sleeved on the bearing mounting ring;

the hollow hub is in a hollow circular ring shape, the hollow hub is sleeved on the bearing, and the bearing is matched between the hollow hub and the bearing mounting ring in the radial direction of the hollow wheel so as to facilitate the hollow hub to rotate relative to the support ring; and

the tire is in a hollow annular shape, and the tire is sleeved on the hollow hub and connected with the hollow hub.

2. The hollow wheel as claimed in claim 1, wherein the hollow hub includes a body, a first mounting cover and a second mounting cover, the body is annular, the first mounting cover, the body and the second mounting cover are sequentially arranged and connected in the axial direction of the hollow wheel, the body is sleeved on the bearing, the outer circumferential surface of the bearing abuts against the inner circumferential surface of the body, and the bearing is located between the first mounting cover and the second mounting cover in the axial direction of the hollow wheel and is opposite to any one of the first mounting cover and the second mounting cover in the axial direction of the hollow wheel.

3. The hollow wheel of claim 2, wherein said first mounting cap is integrally formed with said body and said second mounting cap is removably attached to said body.

4. The hollow wheel of claim 1, further comprising a first connecting plate and a second connecting plate for connecting to a vehicle body, said connecting frame having a first end and a second end opposite to each other in an axial direction of said hollow wheel, said first end and said second end being located on both sides of said bearing mounting ring in the axial direction of said hollow wheel, said first end being connected to said first connecting plate, said second end being connected to said second connecting plate.

5. The hollow wheel of claim 1 wherein said bearing ring has first and second opposing end faces in an axial direction of said hollow wheel, said first and second end faces being parallel to each other and perpendicular to the axial direction of said hollow wheel, said interface frame having third and fourth opposing end faces in the axial direction of said hollow wheel, said third end face having an included angle with each of said first and second end faces, said third and fourth end faces being symmetrical with respect to said bearing ring.

6. The hollow wheel of claim 4, wherein said connecting bracket is a cylindrical structure having first and second openings axially opposed in said hollow wheel, said first connecting plate overlying said first opening and said second connecting plate overlying said second opening.

7. The hollow wheel according to claim 1, wherein the link frame is connected to a part of an inner peripheral surface of the bearing mount ring, the part of the inner peripheral surface of the bearing mount ring surrounds a part of a circumferential direction of the bearing mount ring, and a cross-sectional area of a pattern surrounded by outer edges of the link frame is smaller than a cross-sectional area of a pattern surrounded by inner edges of the bearing mount ring.

8. The hollow wheel of claim 7, wherein said portion of the inner circumferential surface of said bearing retainer has an angle of less than or equal to the angle of the remaining portion of the inner circumferential surface of said bearing retainer.

9. An electric scooter, comprising:

a vehicle body; and

hollow wheel according to any of claims 1 to 8, the connection frame of which is connected to a vehicle body.

10. The electric scooter of claim 9,

the hollow wheel further comprises a first connecting plate and a second connecting plate, the connecting frame is provided with a first end and a second end which are opposite in the axial direction of the hollow wheel, the first end and the second end are respectively positioned on two sides of the bearing mounting ring in the axial direction of the hollow wheel, the first end is connected with the first connecting plate, and the second end is connected with the second connecting plate;

the automobile body includes the frame, the frame includes first linking arm and second linking arm, the cavity wheel is located in its axial first linking arm with between the second linking arm, first linking arm passes through first connecting plate with the link links to each other, the second linking arm passes through the second connecting plate with the link links to each other.

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