CN215552284U

CN215552284U - Vacuum rim assembly

Info

Publication number: CN215552284U
Application number: CN202122076319.0U
Authority: CN
Inventors: 吴志安
Original assignee: Wu Zhian
Current assignee: Wu Zhian
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-18
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to a vacuum rim assembly which comprises a rim, spokes, spoke caps, a middle hub and a sealing unit, wherein one end of each spoke is installed on the middle hub, the other end of each spoke is installed on the rim through the spoke cap, the rim comprises an inner side surface facing a tire and an outer side surface facing the middle hub, the sealing unit comprises a lining belt, a tightening belt and a sealing belt, the lining belt is sleeved on the rim and attached to the inner side surface of the rim, the sealing belt is sleeved on the rim and attached to the lining belt, the sealing belt is fixed on the inner side surface of the rim through the tightening belt to seal the rim, and a valve core is installed on the rim. The spoke can protect the rim and prevent the rim from deforming, and simultaneously adopts a simple and reliable sealing unit to ensure the vacuum performance of the rim.

Description

Vacuum rim assembly

Technical Field

The present invention relates to a rim assembly, and in particular to a vacuum rim assembly for a motorcycle wheel.

Background

At present, the motorcycle riding wheel mostly uses a cast spoke plate type vacuum tire motorcycle wheel, and the wheel has the defects of large weight, heavy structure, poor impact resistance, basically no shock absorption and buffer capacity and extremely low comfort due to the technical problem. In the use process, the wheel rim can be cracked or the whole spoke wheel set is damaged and fails due to slight impact or stress in many times, and a large traffic accident is caused. Some motorcycle wheels adopt a bar cap and rim sealing mode, and the products have the advantages of heavy weight, high processing difficulty, easy assembly damage and high cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned drawbacks, the present invention provides a vacuum rim assembly in which sealing bands and tightening bands are used to ensure that the rim having spokes still maintains a good sealing effect, thereby providing the rim assembly with strong shock resistance and shock resistance as well as excellent vacuum performance.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a vacuum rim assembly comprises a rim, spokes, spoke caps, a middle hub and a sealing unit, wherein one end of each spoke is arranged on the middle hub, the other end of each spoke is arranged on the rim through the spoke cap, the rim comprises an inner side surface facing a tire and an outer side surface facing the middle hub, the sealing unit comprises a lining belt, a tightening belt and a sealing belt, the lining belt is sleeved on the rim, the lining belt is attached to the inner side surface of the rim, the sealing belt is sleeved on the rim, the sealing belt is attached to the lining belt, the sealing belt is fixed to the inner side surface of the rim through the tightening belt to seal the rim, and a valve core is arranged on the rim.

Preferably, the rim is evenly provided with a plurality of mounting holes along the circumferential direction, a circle of mounting groove is formed on the inner side surface of the rim along the circumferential direction, a circle of first clamping grooves are formed on the inner side surfaces of two sides of the mounting groove, and the mounting holes are located in the mounting groove.

Preferably, the lining belt, the tightening belt and the sealing belt are all of a circular ring structure, the lining belt is tightly sleeved on the wheel rim, the lower surface of the lining belt is attached to the mounting groove, the sealing belt is tightly sleeved on the wheel rim, the lower surface of the sealing belt is attached to the upper surface of the lining belt, and the tightening belt is respectively sleeved on two sides of the sealing belt.

Preferably, both sides of the sealing band extend downwards along the axial direction to form a circle of protruding portions, a circle of second clamping grooves are formed in the upper surfaces of the two protruding portions along the circumferential direction, when the tightening band is installed, the protruding portions on both sides of the sealing band are just placed in the first clamping grooves of the rim, and the tightening band is clamped in the second clamping grooves of the sealing band.

Preferably, the lining belt and the sealing belt are both made of flexible materials, and a through hole for installing the valve core is formed in each of the lining belt and the sealing belt.

Preferably, the spoke cap is provided with a groove, a retaining ring is arranged in the groove, the retaining ring is arranged on the outer side of the rim, and the outer diameter of the retaining ring is larger than that of the spoke cap.

The utility model has the beneficial effects that:

1) the sealing unit can completely seal the connecting part of the spoke and the rim, the tire, the rim and the sealing unit form a sealing space, the sealing band can be firmly attached to the inner side surface of the rim after air pressure is filled into the tire, a good sealing effect is achieved, and after the rim rotates, even if the problem of centrifugal force exists, the tightening band can still ensure that the sealing band and the rim are always in a firm attachment state, and the good sealing effect is kept. If the sealing band is only clamped with the rim through the self structure of the sealing band, the sealing band can be gradually separated from the rim due to the action of centrifugal force in the rotating process of the rim, so that the sealing effect is reduced. The sealing unit in the utility model has the advantages of light weight, convenient installation, low processing cost and wide application prospect.

2) The utility model not only reserves the traditional spoke structure, the spoke is an elastic element and can absorb the shock and impact force with certain intensity, thereby better protecting the rim and preventing the deformation of the rim when the rim is stressed, but also adopts a simple and reliable sealing unit and ensures the vacuum performance of the rim; the spoked rim assembly, which uses a plurality of (4n) spokes, can reduce the weight by 15-50% compared with the spokes of other complex cast wheel pairs; the external impact force can be decomposed to a plurality of points (4n), and the stress intensity is reduced by about 80% compared with that of the integrally cast spoke plate wheel, so that the rim assembly can bear about six times of the impact intensity of the traditional spoke plate wheel.

3) Compared with the prior spoke cap sealed vacuum rim, the rim and the spoke cap are lighter, the sealing unit is more convenient, safer and lower in cost no matter from processing, installation or later maintenance, the weight can be reduced by 12-15 percent compared with the prior spoke rim with the same specification, the working hours of the accessory process can be saved by about 20 percent, and the cost of the rim can be saved by 25-35 percent, so the utility model has strong practicability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a front view of the present invention;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;

FIG. 7 is an enlarged view taken at D in FIG. 6;

FIG. 8 is a schematic view of the sealing unit of FIG. 7 with the sealing unit removed;

FIG. 9 is an exploded view of the present invention;

FIG. 10 is a schematic view of the spoke cap of the present invention;

in the figure: 10-rim, 11-inner side face, 12-outer side face, 13-mounting groove, 14-first clamping groove, 15-mounting hole, 20-sealing unit, 21-lining belt, 22-binding belt, 23-sealing belt, 24-bulge part, 25-second clamping groove, 26-through hole, 30-spoke, 40-spoke cap, 41-retaining ring, 50-middle hub and 51-valve core.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Example (b): as shown in fig. 1 to 10, a vacuum rim assembly includes a rim 10, spokes 30, spoke caps 40, a center hub 50, and a sealing unit 20, wherein one end of the spokes 30 is mounted to the center hub 50, the other end is mounted to the rim 10 through the spoke caps 40, the rim 10 includes an inner side 11 facing a tire and an outer side 12 facing the center hub 50, the sealing unit 20 includes a liner 21, a tightening band 22, and a sealing band 23, the liner 21 is sleeved on the rim 10 and attached to the inner side 11 of the rim, the sealing band 23 is sleeved on the rim and attached to the liner 21, the sealing band 23 is fixed to the inner side 11 of the rim through the tightening band 22 to seal the rim, and a valve core 51 is mounted on the rim 10.

The center hub 50 is located at the center of the rim 10 and fixed to the rim 10 by a plurality of spokes 30, specifically: in order to better describe the structure of the rim assembly, the side surface of the rim 10 facing the side of the central hub 50 is defined as an outer side surface 12, the side surface opposite to the outer side surface is defined as an inner side surface 11, the roundness of the whole rim assembly is ensured by adjusting the spoke cap 40, the plane jumping amount of the rim assembly meets the standard, then a lining belt 21 is sleeved on the inner side surface 11 of the rim, a sealing belt 23 is sleeved on the lining belt 21, the tightening belts 22 are sleeved on the two sides of the sealing belt, the sealing belt is clamped on the inner side surface of the rim, a valve core 51 is arranged at the position of a valve nozzle of the rim, and finally the tubeless tire is arranged on the inner side surface of the rim.

The sealing unit of the utility model can completely seal the connection part of the spoke and the rim, the tire, the rim and the sealing unit form a sealing space, the sealing belt 23 can be firmly attached to the inner side surface of the rim after air pressure is filled into the tire, so as to play a good sealing effect, and after the rim rotates, even if the problem of centrifugal force exists, the tightening belt can still ensure that the sealing belt and the rim are always in a firm attachment state, so that a good sealing effect is kept. If the sealing band is only clamped with the rim through the self structure of the sealing band, the sealing band can be gradually separated from the rim due to the action of centrifugal force in the rotating process of the rim, so that the sealing effect is reduced. The utility model not only reserves the traditional spoke structure, the spoke is an elastic element and can absorb the shock and impact force with certain intensity, thereby better protecting the rim and preventing the rim from deforming when the rim is stressed, but also adopts a simple and reliable sealing unit and ensures the vacuum performance of the rim.

As shown in fig. 4, 8 and 9, the rim 10 has a plurality of mounting holes 15 uniformly and respectively along the circumferential direction thereof, the inner side surface 11 of the rim forms a circle of mounting groove 13 along the circumferential direction thereof, the inner side surfaces 11 on both sides of the mounting groove 13 are provided with a circle of first clamping grooves 14, and the plurality of mounting holes 15 are located in the mounting groove 13. The mounting holes 15 are used for mounting the spokes 30 and the spoke caps 40, the mounting grooves 13 are used for mounting the lining tape 21 and the sealing tape, and the first clamping grooves 14 are used for fixing the sealing tape 23.

As shown in fig. 1, 3-4 and 7-9, the lining tape 21, the tightening tape 22 and the sealing tape 23 are all in a circular structure, the lining tape 21 is tightly sleeved on the rim 10, the lower surface of the lining tape 21 is attached to the mounting groove 13, the sealing tape 23 is tightly sleeved on the rim 10, the lower surface of the sealing tape 23 is attached to the upper surface of the lining tape 21, and two sides of the sealing tape 23 are respectively sleeved on the tightening tape 22.

Both sides of the sealing band 23 extend downwards along the axial direction to form a circle of convex parts 24, the upper surfaces of the two convex parts 24 are provided with a circle of second clamping grooves 25 along the circumferential direction, when the wheel rim is installed, the convex parts 24 on both sides of the sealing band are just arranged in the first clamping grooves 14 of the wheel rim, and the tightening band 22 is clamped in the second clamping grooves 25 of the sealing band 23.

During installation, the lining belt 21 is firstly sleeved on the mounting groove 13 of the rim, then the sealing belt 23 is sleeved on the lining belt 21 of the mounting groove 13, the sealing belt is attached to the lining belt 21, the protruding parts 24 on two sides of the sealing belt 23 are just clamped into the first clamping grooves 14 of the rim, and finally the tightening belt 22 is tightly sleeved in the second clamping grooves 25 of the sealing belt, the lining belt 21 is positioned between the rim and the sealing belt 23 and used for protecting the sealing belt 23 from direct impact of spokes and spoke caps, so that the service life of the sealing belt is prolonged; the sealing strip has a sealing function through the direct bonding force of the protruding portion 24 and the first clamping groove 14, and more importantly, the sealing strip is clamped in the first clamping groove of the rim through the tightening bands 22 on the two sides, the restraining force of the tightening bands on the sealing strip is further enhanced due to the first clamping groove and the second clamping groove, and after the rim rotates, even if the problem of centrifugal force exists, the tightening bands still can ensure that the sealing strip and the rim are in a firmly attached state, so that the sealing performance of the vacuum rim is ensured.

As shown in fig. 9, the lining band 21 and the sealing band 23 are made of flexible materials, and a through hole 26 for installing the valve core 51 is formed on each of the lining band 21 and the sealing band 23. For example, the lining band 21 and the sealing band 23 can be made of high molecular flexible materials such as rubber, etc., and have the functions of wear resistance, temperature resistance, moisture resistance, corrosion resistance, etc., and are solid, durable and light in weight, the tightening band 22 can be made of rubber, flexible steel or composite materials, and is firm and durable, in short, the lining band 21, the tightening band 22 and the sealing band 23 all have a little elasticity, and the inner diameters of the lining band 21, the tightening band 22 and the sealing band 23 can be slightly smaller than the outer diameter of the wheel rim, so that a good sealing effect is achieved, and the sealing unit adopting the structure is convenient, rapid and low in cost in later maintenance and replacement; the valve core 51 is used to inflate and deflate the tire, passing through the rim 10, the lining band 21 and the sealing band 23 in sequence.

As shown in fig. 10, the spoke cap 40 is provided with a groove, a retaining ring 41 is installed in the groove, the retaining ring 41 is installed on the outer side of the rim 10, and the outer diameter of the retaining ring 41 is larger than that of the spoke cap 40. The retaining ring 41 is mounted on the outside of the rim and is inserted into the groove of the spoke cap with its outer diameter larger than the outer diameter of the spoke cap and larger than the diameter of the mounting hole 15, so that even if the spoke 30 breaks, the spoke cap will not enter the rim under the stop of the retaining ring 41 and is dangerous.

The operation process of the utility model is as follows: during installation, the elbow parts of the spokes 30 are installed on the central hub 50, the other ends of the spokes are fixedly installed in the rim through the spoke caps 40, the roundness of the whole rim component is ensured by adjusting the spoke caps 40, the plane jumping amount of the spoke caps meets the standard, then the lining tape 21 is sleeved in the installation groove 13 of the rim, the sealing tape 23 is sleeved on the lining tape 21 of the installation groove 13 and is attached to the lining tape 21, the protruding parts 24 on the two sides of the sealing tape 23 are just clamped into the first clamping grooves 14 of the rim, the tightening tape 22 is tightly sleeved in the second clamping grooves 25 of the sealing tape, the sealing unit 20 is installed completely, the valve cores 51 are installed at the valve mouth positions of the rim, and finally, the tubeless tire is installed on the inner side face of the rim.

It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A vacuum rim assembly, comprising: comprises a rim (10), spokes (30), spoke caps (40), a central hub (50) and a sealing unit (20), one end of the spoke (30) is arranged on the central hub (50), the other end is arranged on the rim (10) through a spoke cap (40), the rim (10) comprising an inner side (11) facing the tyre and an outer side (12) facing the central hub (50), the sealing unit (20) comprises a lining band (21), a tightening band (22) and a sealing band (23), the lining belt (21) is sleeved on the rim (10) and is attached to the inner side surface (11) of the rim, the sealing strip (23) is sleeved on the rim, the sealing strip (23) is attached to the lining strip (21), the sealing band (23) is fixed to the inner side surface (11) of the rim through a tightening band (22) to seal the rim, and a valve core (51) is mounted on the rim (10).

2. The vacuum rim assembly of claim 1, wherein: the wheel rim (10) is evenly provided with a plurality of mounting holes (15) along the circumferential direction, a circle of mounting groove (13) is formed on the inner side surface (11) of the wheel rim along the circumferential direction, a circle of first clamping grooves (14) are formed in the inner side surfaces (11) of the two sides of the mounting groove (13), and the mounting holes (15) are located in the mounting groove (13).

3. The vacuum rim assembly of claim 2, wherein: the tyre is characterized in that the lining belt (21), the tightening belt (22) and the sealing belt (23) are all of a circular ring-shaped structure, the lining belt (21) is tightly sleeved on the rim (10), the lower surface of the lining belt (21) is attached to the inside of the mounting groove (13), the sealing belt (23) is tightly sleeved on the rim (10), the lower surface of the sealing belt (23) is attached to the upper surface of the lining belt (21), and the two sides of the sealing belt (23) are respectively sleeved on the tightening belt (22).

4. The vacuum rim assembly of claim 3, wherein: the two sides of the sealing band (23) extend downwards along the axial direction to form a circle of protruding parts (24), the upper surfaces of the two protruding parts (24) are provided with a circle of second clamping grooves (25) along the circumferential direction, when the sealing band is installed, the protruding parts (24) on the two sides of the sealing band are just arranged in the first clamping grooves (14) of the rim, and the tightening band (22) is clamped in the second clamping grooves (25) of the sealing band (23).

5. The vacuum rim assembly of claim 1, wherein: the lining belt (21) and the sealing belt (23) are both provided with a through hole (26) for installing a valve core (51).

6. The vacuum rim assembly of claim 1, wherein: the spoke cap (40) is provided with a groove, a retaining ring (41) is arranged in the groove, the retaining ring (41) is arranged on the outer side of the rim (10), and the outer diameter of the retaining ring (41) is larger than that of the spoke cap (40).