Impact resistant spoke cap

Abstract

The utility model discloses an anti-impact spoke cap, which comprises a spoke cap and a rim, the spoke cap has a threaded pipe sleeve part and a cap head, the inner side surface of the cap head is provided with a ring groove, a sealing ring is arranged between the cap head and the rim, the upper part of the sealing ring has a guide part, the bottom surface of the sealing ring is provided with a protruding part, and the protruding part cooperates with the ring groove. The sealing ring of hard alloy is sleeved at the cap head, on one hand, under the action of the spoke tension, the sealing ring is attached to the inner wall of the through hole of the rim, the protruding part of the sealing ring cooperates with the ring groove of the cap head, and the sealing ring also plays a sealing role under the action of the tension. The sealing ring is made of tungsten carbide alloy material, has the characteristics of high strength, high hardness and high wear resistance, and can improve the impact resistance of the cap head.

Description

Technical Field

[0001] This utility model belongs to the field of spoke cap technology, specifically, it relates to an impact-resistant spoke cap. Background Technology

[0002] The spoke cap passes through a hole on the rim and is threaded to one end of the spoke. The tension of the spoke can be adjusted by turning the spoke cap. There is a gap between the spoke cap and the hole on the rim. When riding through puddles or in rainy weather, water will enter the rim through the gap, making riding difficult or even corroding the rim. To improve the performance of the spoke cap, an impact-resistant spoke cap is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide an impact-resistant spoke cap, which solves the problem of poor sealing and impact resistance performance of the spoke cap in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model discloses an impact-resistant spoke cap, including: a spoke cap and a wheel rim; the spoke cap has a threaded sleeve part and a cap head, the inner side of the cap head is provided with an annular groove, a sealing ring is provided between the cap head and the wheel rim, the upper part of the sealing ring has a guide part, the bottom surface of the sealing ring is provided with a protrusion part, and the protrusion part cooperates with the annular groove.

[0005] Furthermore, the top surface of the aforementioned sealing ring is attached to the inner wall of the wheel rim, and the bottom surface of the sealing ring is attached to the inner side of the cap.

[0006] Furthermore, the aforementioned guide portion is located at the upper port of the sealing ring and extends upward.

[0007] Furthermore, the aforementioned guide portion is located between the threaded sleeve portion of the spoke cap and the through hole of the wheel rim, and the outer surface of the guide portion is an upwardly converging conical surface.

[0008] Compared with the prior art, this application can achieve the following technical effects: This invention features a hard alloy sealing ring fitted at the crown. Under the tension of the spokes, the sealing ring fits against the inner wall of the through hole in the rim. The protrusion of the sealing ring also cooperates with the ring groove of the crown, achieving a sealing effect under tension. The sealing ring is made of tungsten carbide alloy, which has the characteristics of high strength, high hardness, and high wear resistance, thus improving the impact resistance of the crown.

[0009] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the existing technology for the fit between the spoke cap and the wheel rim; Figure 2 This is a schematic diagram of the spoke cap, sealing ring, and wheel rim fitting according to one embodiment of this utility model.

[0011] Attached Figure Labels

[0012] 1. Spoke cap, 2. Wheel rim, 3. Threaded tube sleeve, 4. Cap head, 5. Ring groove, 6. Sealing ring, 7. Guide part, 8. Protrusion, 9. Through hole. Detailed Implementation

[0013] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0014] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the existing technology for the fit between the spoke cap and the wheel rim; Figure 2 This is a schematic diagram of the spoke cap, sealing ring, and wheel rim fitting according to one embodiment of this utility model.

[0015] An impact-resistant spoke cap includes: a spoke cap 1 and a wheel rim 2; the spoke cap 1 has a threaded sleeve portion 3 and a cap head 4, the inner side of the cap head 4 is provided with an annular groove 5, a sealing ring 6 is provided between the cap head 4 and the wheel rim 2, the upper part of the sealing ring 6 has a guide portion 7, and the bottom surface of the sealing ring 6 is provided with a protrusion 8, the protrusion 8 and the annular groove 5 are engaged.

[0016] The top surface of the sealing ring 6 is in contact with the inner wall of the rim 2, and the bottom surface of the sealing ring 6 is in contact with the inner side of the cap 4. The top and bottom surfaces of the sealing ring 6 are in closer contact with the rim 2 and the cap 4, and the sealing performance of the three is better after being subjected to the tension of the spokes.

[0017] The guide part 7 is located at the upper end of the sealing ring 6 and extends upward. The guide part 7 is located between the threaded sleeve part 3 of the spoke cap and the through hole 9 of the rim. The outer surface of the guide part 7 is a tapered surface that converges upward. The guide part 7 facilitates positioning and ensures that the sealing ring 6 fits with the cap 4 and the through hole 9 of the rim, so as to avoid damage to the sealing ring 6 by the tension of the spokes after misalignment. On the other hand, the guide part 7 can fill the gap between the spoke cap and the through hole 9 on the rim, reduce the shaking of the spoke cap in the through hole 9. Excessive shaking can easily cause wear, and bumpy roads can easily cause the shaking spoke cap 1 to be subjected to impact, shortening its service life.

[0018] This utility model features a hard alloy sealing ring 6 fitted at the cap head 4. On one hand, under the action of the spoke tension, the sealing ring 6 fits against the inner wall of the wheel rim through hole 9. The protrusion 8 of the sealing ring 6 cooperates with the ring groove 5 of the cap head 4, which also achieves the sealing effect under tension. The sealing ring 6 is made of tungsten carbide alloy, which has the characteristics of high strength, high hardness and high wear resistance, and can improve the impact resistance of the cap head.

[0019] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An impact-resistant spoke cap, comprising: Spoke caps and rims; The spoke cap is characterized in that it has a threaded sleeve portion and a cap head, the inner side of the cap head is provided with an annular groove, a sealing ring is provided between the cap head and the wheel rim, the upper part of the sealing ring is provided with a guide portion, and the bottom surface of the sealing ring is provided with a protrusion portion, which cooperates with the annular groove.

2. The impact-resistant spoke cap as described in claim 1, characterized in that, The top surface of the sealing ring is in contact with the inner wall of the wheel rim, and the bottom surface of the sealing ring is in contact with the inner side of the cap.

3. The impact-resistant spoke cap as described in claim 2, characterized in that, The guide portion is located at the upper port of the sealing ring and extends upward.

4. The impact-resistant spoke cap as described in claim 3, characterized in that, The guide portion is located between the threaded sleeve portion of the spoke cap and the through hole of the wheel rim, and the outer surface of the guide portion is a tapered surface that converges upward.

Images