CN220720726U - Anti-deflection spoke connecting piece and wheel - Google Patents

Abstract

The utility model provides an anti-deflection spoke connecting piece and a wheel, wherein the connecting piece can be fixed at one end of a spoke so as to be used for connecting the spoke with a rim, the connecting piece comprises a cylindrical main body and external threads formed on the outer circumferential surface of the main body, clamping structures which are used for being matched with spoke holes on the rim and limiting are also formed on the outer circumferential surface of the main body, the external threads and the clamping structures are formed at different two ends on the outer circumferential surface of the main body, and the outer profile of the cross section of the clamping structure is only formed by circular arcs. According to the spoke fixing device, rotation can be prevented through the limit matching structure of the spoke hole and the clamping structure, so that the spoke fixing device only needs to use a wrench to rotationally fix the spoke threaded joint end, namely, a fixed wrench is not needed when the spoke is fixed, the socket wrench can be directly screwed, and the efficiency of spoke installation and fixation is improved.

Description

Anti-deflection spoke connecting piece and wheel

Technical Field

The utility model relates to the field of vehicle accessories, in particular to an anti-deflection spoke connecting piece.

Background

Spokes are common vehicle fittings for connecting rims and hubs, particularly in small motor vehicles such as bicycles, motorcycles, and the like, and have a large number of applications. The spoke accessory meets the performance requirements of high tensile strength and good fatigue performance. Traditional wire spokes have lower tensile strength due to heavy weight and do not have competitive advantage. Thus, fiber spokes with more excellent performance have been invented.

The body of the fiber spoke is manufactured by bundling and shaping fibers with high strength and high modulus, and the structure of the connectors (the tooth cap and the cap head) used for connecting the rim and the hub at two ends is relatively complex, so that the fiber spoke is generally difficult to directly manufacture by adopting fiber materials. Therefore, the existing fiber spokes are mostly formed by compositely connecting corresponding connectors made of other materials (such as hard metal or ceramic) at two ends of a spoke main body made of fiber materials.

When traditional bicycle carbon spoke is braided, in order to fix the spoke, need process out the polygon on tooth cap metalwork and be used for spoke spanner to fix, need use fixation spanner and box spanner simultaneously during the braiding, complex operation.

In addition, the spokes can twist at a certain angle in the use process of the wheel set, and particularly when the spokes are twisted on the wind breaking spokes, wind resistance and the whole beautiful appearance of the wheel set can be obviously affected.

Disclosure of Invention

To this end, the present utility model provides an anti-deflection spoke attachment and a wheel.

The utility model is realized by the following scheme:

the utility model provides an anti-deflection spoke connecting piece which can be installed and fixed at one end of a spoke so as to be used for connecting the spoke with a rim.

Wherein in one embodiment, the detent structure is two circular arc-shaped protrusions formed on the outer circumferential surface of the main body of the connector.

Wherein, in one embodiment, the detent structure is four circular arc-shaped protrusions formed on the outer circumferential surface of the main body of the connector.

In one embodiment, the clamping structure is two circular arc-shaped protrusions formed on the outer circumferential surface of the main body of the connecting piece, and the diameters of the two circular arc-shaped protrusions are not smaller than the diameter of the main body of the connecting piece, so that the two circular arc-shaped protrusions completely cover the whole circumference of the radial section of the main body on the radial section of the main body.

Wherein in one embodiment, the connector is a connector made of hard metal, ceramic, or hard engineering resin.

The utility model also provides a wheel, which comprises an anti-deflection spoke connecting piece, spokes, a spoke nipple and a rim and a hub which are connected through the spokes, wherein the connecting piece is fixed at one end of the spokes, spoke holes are formed in the rim, the connecting piece can penetrate through the spoke holes, and the connecting piece is in threaded connection with the spoke nipple, so that the connection between the spokes and the rim is realized; the cross section outline of spoke hole only comprises the circular arc, the spoke hole with the shape looks adaptation of screens structure and form spacing cooperation between the two.

Wherein, in one embodiment, the rim has a thickness at the spoke hole, and the axial height of the clamping structure is approximately equal to the thickness.

Wherein, in one embodiment, the spoke hole is a through hole with a cross section formed by drilling through a drill bit and formed by combining a plurality of sections of circular arcs.

Wherein, in one embodiment, the spokes are carbon fiber spokes.

Wherein, in one embodiment, the spoke is a wind-breaking spoke.

Wherein, in one embodiment, the other end of spoke is fixed with cap head, the spoke is connected to the flower-drum through cap head.

The technical scheme provided by the utility model has the following technical effects:

1. the connecting piece can prevent rotation through the limit matching structure of the spoke hole and the clamping structure, so that the connecting piece can be rotationally fixed only by using a wrench at the threaded joint end of the spoke, namely, a fixed wrench is not needed when the spoke is fixedly installed, the socket wrench can be directly screwed, and the spoke installation efficiency is improved. After the spokes are installed and fixed, the spokes cannot deflect in the riding process of the bicycle, so that wind resistance is prevented from being influenced, and the overall attractiveness of the wheel set can be improved.

2. The spoke hole is more convenient to process, namely, the spoke hole can be formed by drilling only through a drill bit. And the arc shape of the spoke hole enables the spoke hole to have better stress distribution, the stress formed on the spoke hole is smaller, and particularly when the spoke hole is applied to a rim manufactured by carbon fibers, carbon fiber cloth for manufacturing the rim is woven by the carbon fibers, the smaller stress on the spoke hole can effectively prevent the carbon fibers of the carbon fiber cloth from twisting due to overlarge stress, so that the fiber dispersion is caused, the structural damage of the rim is avoided, and the service life of the whole rim is prolonged. The connecting piece can sink into the spoke hole, so that the built-in effect is achieved, and the appearance is attractive.

3. The middle section of the spoke main body is processed into a flat shaft shape in the forming and curing process, and the first end and the second end which are connected with each other are still in a cylindrical shaft shape, so that the flat shaft shape design of the middle section of the spoke main body can be used for greatly reducing the wind resistance of a vehicle.

Drawings

FIG. 1 is a perspective view of a wheel of an embodiment;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a perspective view of a wheel cut-away portion of a rim in accordance with the first embodiment;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a perspective view of an assembly of spokes and a connector in accordance with the first embodiment;

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is a plan view of a spoke hole in the first embodiment;

FIG. 8 is an elevational view of the spoke nipple connected to the connector;

FIG. 9 is a perspective view of a connector in the second embodiment;

FIG. 10 is a plan view of a spoke hole in the second embodiment;

FIG. 11 is a perspective view of a connector in the third embodiment;

FIG. 12 is a plan view of a spoke hole in the third embodiment.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

As shown in fig. 1 to 8, a first embodiment of the present utility model provides a wheel comprising an anti-deflection spoke attachment 40, spokes 20, and a rim 10 and a hub 30 connected by the spokes 20, the attachment 40 being fixed to one end of the spokes 20, the rim 10 being provided with a spoke hole 101, the attachment 40 being capable of passing through the spoke hole 101, the attachment 40 fixed to one end of the spokes 20 being threadably engaged with the spoke nipple 50 to attach one end of the spokes 20 to the rim 10, as shown in fig. 1 and 8, thereby achieving attachment of the spokes 20 to the rim 10; the outer profile of the cross section of the spoke hole 101 is composed of an arc, the spoke hole 101 is matched with the shape of the clamping structure 404, and a limit fit is formed between the spoke hole and the clamping structure.

The other end of the spoke 20 is fixed with a cap head 60, and the spoke 20 is connected to the hub 30 through the cap head 60; the spokes 20 are connected with the rim 10 and the hub 30 respectively, so that a complete wheel is formed. In this embodiment, the connector 40 is a dental cap. The connecting member 40 is made of a hard metal, ceramic, or a hard engineering resin, for example. Preferably, the spoke 20 is a fiber spoke, which is formed by bundling a plurality of fibers made of high-strength high-modulus materials and curing the fibers through strong resin. Preferably, the spokes 20 are carbon fiber spokes. The fiber spokes should be kept from being subjected to torsional forces during use, which would otherwise tend to cause the plurality of fibers forming the fiber spokes to be dispersed from one another due to the torsional forces, thereby causing the overall structure of the fiber spokes to be susceptible to damage.

This embodiment is described by taking the spokes 20 made of carbon fiber as an example. It is contemplated by those skilled in the art that spoke bodies employing other materials of high strength, high modulus fibers are also possible. The high-strength high-modulus fiber refers to a high-performance fiber material defined under the standard well known in the industry, and concretely refers to: synthetic or natural fibers having a strength greater than 10CN/dkex and a modulus greater than 200 CN/dkex.

The spoke 20 of this embodiment is a wind-breaking spoke, and the spoke 20 includes a spoke main body 201, in which a middle section of the wind-breaking spoke, that is, the spoke main body 201, is processed into a flat shaft shape in a forming and curing process, and a first end 202 and a second end 203 connected with the spoke main body are still cylindrical, so that the flat shaft shape design of the middle section of the spoke main body 201 can be used for greatly reducing wind resistance of a vehicle.

The connector 40 serves as a cap that interfaces with a spoke nipple 50 (shown in fig. 8), and the specific structure includes: a cylindrical body 401, connecting threads formed on the body 401, and a through hole 403 penetrating the body 401 along the central axis. The connecting screw is for screw-coupling with the spoke nipple 50, and in particular, the connecting screw is an external screw 402 formed on the outer circumferential surface of the main body 401 for screw-coupling with the internal screw of the spoke nipple 50, and the first end 202 of the spoke 20 can be inserted into the through hole 403 of the connection member 40 and form a firm connection with the connection member 40. The outer circumferential surface of the main body 401 of the connecting member 40 is also formed with a catching structure 404 for cooperating with and limiting the spoke holes 101 of the rim 10. External threads 402 and a click structure 404 are formed at different ends on the outer circumferential surface of the body 401. The outer profile of the cross section of the detent structure 404 is composed of only circular arcs. After the first end 202 of the spoke 20 is nested into the through hole 403 of the connector 40, the external thread 402 is located at the end of the connector 40 remote from the spoke 20. The spoke hole 101 and the clamping structure 404 have similar shapes, and form clearance fit therebetween, so that the connecting piece 40 can be displaceably arranged in the spoke hole 101, and the limiting fit of the spoke hole 101 and the clamping structure 404 can prevent the connecting piece 40 from rotating relative to the rim 10. When the spoke 20 is connected with the rim 10 by the arrangement, the external thread 402 of the connecting piece 40 is assembled in a threaded manner with the internal thread of the spoke nipple 50, and the connecting piece 40 can be prevented from rotating by the limit matching structure of the spoke hole 101 and the clamping structure 404, so that the spoke nipple 50 end is rotationally fixed by using a wrench.

The connecting piece can prevent rotation through the limit matching structure of the spoke hole 101 and the clamping structure 404, so that the connecting piece only needs to be rotationally fixed by using a wrench at the spoke threaded joint end, namely, a fixed wrench is not needed when the spoke 20 is fixedly installed, and the socket wrench can be directly screwed, so that the installation efficiency of the spoke 20 is improved.

In the present embodiment, the sectional shapes of the spoke hole 101 and the locking structure 404 are all exemplified by an arcuate design. It is contemplated by those skilled in the art that other cross-sectional shapes of the spoke openings 101 and the detent structures 404 are possible. For example, a star shape, a triangle shape, a square shape, or the like may be adopted. However, the star-shaped uniform cross-section is complicated in pattern, difficult to process, and generally less used. In view of the weight reduction of the rim 10 relative to conventional steel rims and the further reinforcement of the structural strength, the rim 10 is preferably made of a carbon fiber material. For the rim 10 made of carbon fiber materials, spoke holes with triangular, square and other polygonal cross-sectional shapes are arranged on the rim, so that the problem of concentrated sharp corner stress of the spoke holes exists, the rim 10 is inconvenient to process, the structure of the rim 10 is easy to damage, and the service life of the rim 10 is reduced.

The cross-sectional shapes of the spoke hole 101 and the clamping structure 404 of the utility model are designed in an arc manner, compared with polygonal spoke holes and clamping structures, the arc-shaped design ensures that the spoke hole 101 has better stress distribution, the stress formed on the spoke hole 101 is smaller, and particularly when the spoke hole is applied to the rim 10 manufactured by carbon fibers, the carbon fiber cloth for manufacturing the rim is woven by the carbon fibers, and the smaller stress on the spoke hole 101 can effectively prevent the carbon fibers of the carbon fiber cloth from twisting due to overlarge stress so as to cause fiber dispersion, thereby avoiding structural damage of the rim 10 and being beneficial to prolonging the service life of the whole rim 10.

In the present embodiment, the screw connection structure between the connection member 40 and the spoke nipple 50 is an external screw thread 402 formed on the outer circumferential surface of the main body 401 of the connection member 40 and an internal screw thread formed on the spoke nipple 50, and as one skilled in the art can expect, the screw connection structure between the connection member 40 and the spoke nipple 50 may also be an internal screw thread formed on the main body 401 of the connection member 40 and an external screw thread formed on the spoke nipple 50.

As shown in FIG. 4, the rim 10 has a thickness S at the spoke openings 101, preferably, the axial height of the detent structures 404 is approximately equal to the thickness S, such that after the spokes 20 are coupled and locked to the rim 10, the detent structures 404 of the coupling member 40 still have sufficient portions to mate with the spoke openings 101 of the rim 10. So that better stress condition exists between the two.

In the present embodiment, the connecting member 40 is a connecting member 40A of a first configuration, the click structure 404A of the first configuration of the click structure 404, and the click structure 404A is two circular arc-shaped projections formed on the outer circumferential surface of the main body 401 of the connecting member 40A. Preferably, the two circular arc-shaped protrusions are symmetrically disposed about the central axis of the body 401. The spoke hole 101 is a spoke hole 101A of a first configuration, and the spoke hole 101A and the clamping structure 404A have similar shapes, i.e. the spoke hole 101A is formed by combining a central round hole 1011 and two circular arc holes 1012A. The described shape of the spoke hole 101A makes the machining of the spoke hole 101A more convenient, i.e. the spoke hole 101A can be a through hole with a cross section formed by drilling only by a drill bit, which is formed by combining a plurality of circular arcs. And the circular arc shape of the spoke hole 101A enables the spoke hole 101A to have better stress distribution, and the stress formed on the spoke hole 101A is smaller, so that the service life of the whole rim 10 is prolonged.

The wheel also comprises a deflection preventing spoke connecting piece, spokes, a rim and a hub, wherein the rim and the hub are connected through the spokes, the connecting piece is fixed at one end of each spoke, a spoke hole is formed in the rim, the deflection preventing spoke connecting piece also comprises a cylindrical main body, external threads which are formed on the outer circumferential surface of the main body and are used for being assembled with internal threads of spoke threaded joints in a threaded mode, a through hole penetrates through the main body along a central axis, and a clamping structure which is used for being matched with the spoke hole on the rim and limiting is further formed on the outer circumferential surface of the main body. The second embodiment is basically the same as the first embodiment, except that the configuration of the detent structure is different from the first embodiment, and the configuration of the spoke hole corresponding to the detent structure is different from the first embodiment. Referring to fig. 9-10, the connector 40 of the second embodiment adopts a connector 40B of a second configuration, and the improvement is characterized in that: the catching structure 404 formed on the outer circumferential surface of the main body 401 of the connecting member 40B is a catching structure 404B of the second configuration, and the spoke holes 101 on the rim 10 are spoke holes 101B of the second configuration. The catching structure 404B is four circular arc-shaped protrusions formed on the outer circumferential surface of the body 401 of the connecting member 40B, and preferably, the four circular arc-shaped protrusions are symmetrically disposed about the central axis of the body 401.

The spoke hole 101B has a similar shape to the retaining structure 404B, i.e., the spoke hole 101B is formed by combining a central circular hole 1011 and two circular arc holes 1012B. The described shape of the spoke hole 101B makes the machining of the spoke hole 101B more convenient, i.e. the spoke hole 101B can be a through hole with a cross section formed by drilling only by a drill bit, which is formed by combining a plurality of circular arcs. And the circular arc shape of the spoke hole 101B enables the spoke hole 101B to have better stress distribution, and the stress formed on the spoke hole 101B is smaller, so that the service life of the whole rim 10 is prolonged.

The wheel provided in the third embodiment of the present utility model also includes a spoke-preventing connecting member, spokes, and a rim and a hub connected by the spokes, wherein the connecting member is fixed at one end of the spokes, the rim is provided with spoke holes, the spoke-preventing connecting member also includes a cylindrical main body, an external thread formed on an outer circumferential surface of the main body 401 for screw-coupling with an internal thread of a spoke nipple, a through hole penetrating the main body along a central axis, and a locking structure for engaging with and limiting the spoke holes on the rim is formed on the outer circumferential surface of the main body. This third embodiment is substantially identical to the first embodiment, except that the configuration of the detent structure is different from the first embodiment, and the configuration of the spoke holes corresponding to the detent structure is different from the first embodiment. Referring to fig. 11-12, the connector 40 of the third embodiment adopts a connector 40C of a third construction, and the improvement is characterized in that: the catching structure 404 formed on the outer circumferential surface of the main body 401 of the connecting member 40C is a catching structure 404C of a third configuration, and the spoke holes 101 on the rim 10 are spoke holes 101C of a third configuration. The catching structure 404C is two circular arc-shaped protrusions formed on the outer circumferential surface of the body 401 of the connecting member 40C, and preferably, the two circular arc-shaped protrusions are symmetrically disposed with respect to the central axis of the body 401. The diameters of the two circular arc-shaped protrusions are not smaller than the diameter of the main body 401 of the connecting member 40C, so that the two circular arc-shaped protrusions completely cover the entire circumference of the radial cross section of the main body 401 on the radial cross section of the main body 401.

The spoke hole 101C and the clamping structure 404C have similar shapes, i.e. the spoke hole 101C is formed by combining two circular arc holes 1012C. The shape of the spoke hole 101C makes the processing of the spoke hole 101C more convenient, i.e. the spoke hole 101C is a through hole with a cross section formed by drilling only by a drill bit and formed by combining a plurality of circular arcs. And the circular arc shape of the spoke hole 101C enables the spoke hole 101C to have better stress distribution, and the stress formed on the spoke hole 101C is smaller, so that the service life of the whole rim 10 is prolonged.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (11)

1. The utility model provides a prevent spoke connecting piece that deflects, the connecting piece can be installed and fix the one end at the spoke to be used for the connection of spoke with the rim, its characterized in that, the connecting piece includes cylindric main part, and set up the connecting thread in the main part, still be formed with on the outer circumference surface of main part be used for with the spoke hole on the rim match and spacing screens structure, after the connecting piece is installed and fix the one end at the spoke, the connecting thread is located keep away from the one end of spoke in the main part of connecting piece, screens structure is located be close to the one end of spoke in the main part, the cross section outline of screens structure only comprises the circular arc.

2. The anti-deflection spoke attachment according to claim 1, wherein: the catching structure is two circular arc-shaped protrusions formed on an outer circumferential surface of the body of the connection member.

3. The anti-deflection spoke attachment according to claim 1, wherein: the catching structure is four circular arc-shaped protrusions formed on an outer circumferential surface of the body of the connection member.

4. The anti-deflection spoke attachment according to claim 1, wherein: the clamping structure is two arc-shaped bulges formed on the outer circumferential surface of the main body of the connecting piece, and the diameters of the two arc-shaped bulges are not smaller than the diameter of the main body of the connecting piece, so that the two arc-shaped bulges completely cover the whole circumference of the radial section of the main body on the radial section of the main body.

5. The anti-deflection spoke attachment according to claim 1, wherein: the connecting piece is made of hard metal, ceramic or hard engineering resin.

6. A wheel comprising an anti-deflection spoke connecting piece as claimed in any one of claims 1 to 5, spokes, a spoke nipple and a rim and a hub connected by the spokes, wherein the connecting piece is fixed at one end of the spokes, a spoke hole is formed in the rim, the connecting piece can penetrate through the spoke hole, and the connecting piece is in threaded connection with the spoke nipple, so that the connection between the spokes and the rim is realized; the cross section outline of spoke hole only comprises the circular arc, the spoke hole with the shape looks adaptation of screens structure and form spacing cooperation between the two.

7. The wheel of claim 6, wherein: the rim has a thickness at the spoke hole, and the axial height of the clamping structure is approximately equal to the thickness.

8. The wheel of claim 6, wherein: the spoke holes are through holes with cross sections formed by drilling through a drill bit and formed by combining multiple sections of circular arcs.

9. The wheel of claim 6, wherein: the spokes are carbon fiber spokes.

10. The wheel of claim 6, wherein: the spoke is a wind breaking spoke.

11. The wheel of claim 6, wherein: the other end of each spoke is fixed with a cap head, and each spoke is connected to the flower drum through the cap head.