Wheel nut

Abstract

The utility model discloses a wheel nut which comprises a spherical part, a connecting part and an anti-theft shell, the spherical part and the connecting part are integrated, the connecting part is sleeved with the anti-theft shell, a threaded hole is formed between the spherical part and the connecting part in a penetrating mode, the anti-theft shell is connected with the connecting part in a rotating mode, and a clamping block is arranged on the inner wall of the anti-theft shell. The connecting part is provided with an annular groove corresponding to the clamping block, the clamping block slides in the annular groove, the connecting part is provided with a clamping groove, a transition groove is formed between the clamping groove and the annular groove, the arc length of the clamping groove is larger than the width of the transition groove, the transition groove is located in the middle of the clamping groove, and the width of the transition groove is equal to the width of the clamping block. The outer side face of the anti-theft shell is a hexagonal prism face, the anti-theft shell can rotate freely in the anti-theft process, the nut can be repeatedly disassembled, assembled and used, cost is reduced, the anti-theft shell is a hexagonal prism and can be disassembled and assembled through a traditional wrench, and more convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, more particularly to a wheel nut. BACKGROUND

[0002] One end (the end towards the wheel) of the wheel nut is a spherical surface or an arc surface or a conical surface, which plays a self-positioning role when being connected (such as the wheel nut disclosed in the existing patents with publication numbers CN203348285U, CN208546416U, CN215950091U, etc.).

[0003] However, the anti-theft structure of most wheel nuts at present is to remove the outer hexagonal edges of the nut and set a special-shaped groove, such as a keyhole slot or a triangular slot, at the other end of the nut, so that the nut can only be removed by using a special-shaped wrench, which greatly reduces the use range of the nut. Some nuts are additionally sleeved with an anti-theft shell, which covers the nut (similar to the anti-theft method of license plates), but the anti-theft shell needs to be damaged when disassembling the nut, and the anti-theft shell needs to be reinstalled later, which not only has a small use range but also increases the disassembly cost of the nut. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a wheel nut with an anti-theft function, which can freely rotate when being prevented from being stolen, and the nut can be repeatedly disassembled and assembled, thereby reducing the cost. The anti-theft shell is a hexagonal prism, which can be disassembled and assembled by using a traditional wrench, and is more convenient.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wheel nut, comprising a spherical surface part, a connecting part and an anti-theft shell, the spherical surface part and the connecting part are integrated, the anti-theft shell is sleeved on the connecting part, a threaded hole is penetrated between the spherical surface part and the connecting part, the anti-theft shell is rotationally connected with the connecting part, a clamping block is arranged on the inner wall of the anti-theft shell, a ring groove corresponding to the clamping block is arranged on the connecting part, the clamping block slides in the ring groove, a clamping groove is arranged on the connecting part, a transition groove is arranged between the clamping groove and the ring groove, the arc length of the clamping groove is greater than the width of the transition groove, the transition groove is located in the middle of the clamping groove, the width of the transition groove is equal to the width of the clamping block, and the outer side surface of the anti-theft shell is a hexagonal prism surface.

[0006] Further, at least two clamping blocks are arranged on the same plane of the anti-theft shell in the circumferential direction, and at least two clamping grooves are arranged on the connecting part.

[0007] Further, a plurality of clamping blocks located on different radial planes are arranged on the anti-theft shell.

[0008] Further, the support plate corresponding to the transition groove is arranged in the card slot, and both ends of the support plate extend to both sides of the card slot, a spring is arranged between the support plate and the card slot, and a groove corresponding to the support plate is arranged on the card slot.

[0009] Compared with the prior art, the car wheel nut is installed, the clamping block on the anti-theft shell is repositioned in the annular groove, the anti-theft shell is freely rotated, the anti-theft effect is achieved, the anti-theft shell can be repeatedly disassembled and assembled, the cost is reduced, the anti-theft shell with the hexagonal prism surface can be disassembled and assembled by using a traditional wrench, and the anti-theft shell is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is an appearance structure schematic view of the car wheel nut of the utility model;

[0011] Figure 2 It is a cross-sectional schematic view of the car wheel nut in a first state;

[0012] Figure 3 It is a cross-sectional schematic view of the car wheel nut in a second state;

[0013] Figure 4 It is a cross-sectional schematic view of the car wheel nut in a third state;

[0014] Figure 5 It is Figure 3 It is an enlarged view of the middle A part.

[0015] The drawings are as follows: the spherical surface part 1; the connecting part 2; the anti-theft shell 3; the threaded hole 4; the clamping block 5; the annular groove 6; the card slot 7; the transition groove 8; the support plate 9; the spring 10; and the groove 11. DETAILED DESCRIPTION

[0016] In the description of the utility model, it should be explained that, for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the utility model and simplifying the description, and not for indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and cannot be understood as limiting the specific protection scope of the utility model.

[0017] In addition, the terms "first", "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first", "second" features can explicitly or implicitly include one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.

[0018] Referring to Figures 1 to 5 Further illustrate the utility model.

[0019] A wheel nut, comprising a spherical surface part 1, a connecting part 2 and an anti-theft shell 3, the spherical surface part 1 and the connecting part 2 are integrated, the anti-theft shell 3 is sleeved on the connecting part 2, a threaded hole 4 is penetrated between the spherical surface part 1 and the connecting part 2, the anti-theft shell 3 is rotationally connected with the connecting part 2, a clamping block 5 is arranged on the inner wall of the anti-theft shell 3, a ring groove 6 corresponding to the clamping block 5 is arranged on the connecting part 2, the clamping block 5 slides in the ring groove 6, a clamping groove 7 is arranged on the connecting part 2, a transition groove 8 is arranged between the clamping groove 7 and the ring groove 6, the arc length of the clamping groove 7 is greater than the width of the transition groove 8, the transition groove 8 is located in the middle of the clamping groove 7, the width of the transition groove 8 is equal to the width of the clamping block 5, and the outer side surface of the anti-theft shell 3 is a hexagonal prism surface.

[0020] As Figures 2 to 4 Preferred in the embodiment, at least two clamping blocks 5 are arranged on the same plane of the anti-theft shell 3, and at least two clamping grooves 7 are arranged on the connecting part 2.

[0021] As Figures 2 to 4 Preferred in the embodiment, a plurality of clamping blocks 5 located on different radial planes are arranged on the anti-theft shell 3.

[0022] As Figure 5 Preferred in the embodiment, a support plate 9 corresponding to the transition groove 8 is arranged in the clamping groove 7, and the two ends of the support plate 9 extend to the two sides of the clamping groove 7, a spring 10 is arranged between the support plate 9 and the clamping groove 7, and a recess 11 corresponding to the support plate 9 is arranged on the clamping groove 7.

[0023] Specifically, when the clamping block 5 starts to extend into the clamping groove 7, it will contact the support plate 9 in the clamping groove 7 which is lifted by the spring 10, so that the axial movement of the anti-theft shell 3 generates resistance, until the clamping block 5 presses the support plate 9 into the recess 11 of the clamping groove 7, at this time the support plate 9 is flush with the clamping groove 7, then rotate the anti-theft shell 3 to move the clamping block 5 to one end of the clamping groove 7, because the spring 10 is compressed at this time, it can continuously provide pressure to the clamping block 5 in the clamping groove 7, when disassembling or installing the nut, the anti-theft shell 3 will not be randomly reversed and slipped to affect the disassembly or installation of the nut.

[0024] When the clamping block 5 on the connecting part 2 is located in the ring groove 6 of the connecting part 2, the anti-theft shell 3 can freely rotate on the connecting part 2, as shown in Figure 2 When the anti-theft shell 3 rotates to align the clamping block 5 with the transition groove 8 connected with the connecting part 2, the anti-theft shell 3 can move in the axial direction to make the clamping block 5 pass through the transition groove 8 and enter the clamping groove 7, as shown in Figure 3 When the clamping block 5 enters the clamping groove 7, further rotating clockwise or counterclockwise, the clamping block 5 is located at one end of the clamping groove 7 and contacts with the inner wall of the one end of the clamping groove 7, at this time, the anti-theft shell 3 cannot rotate clockwise or counterclockwise alone, thereby achieving the effect of rotating the connecting part 2 on the bolt to realize the installation or disassembly of the wheel nut.

[0025] When the wheel nut is installed, the anti-theft shell 3 can be reversely rotated to make the clamping block 5 in the clamping groove 7 re-align with the transition groove 8, and then axially moving the anti-theft shell 3 can make the clamping block 5 re-locate in the ring groove 6 to realize free rotation, thereby achieving the effect of anti-theft, and repeatedly disassembling and assembling, reducing the cost, and the anti-theft shell 3 with the hexagonal surface can also be disassembled and assembled by using the traditional wrench, which is more convenient.

[0026] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A wheel nut characterised in that: The anti-theft shell is provided with at least two clamping blocks on the same plane, and the connecting part is provided with corresponding at least two clamping grooves.

2. The wheel nut of claim 1, wherein: The anti-theft shell is provided with a plurality of clamping blocks located on different radial planes.

3. The wheel nut of claim 1, wherein: The clamping groove is provided with a support plate corresponding to the transition groove, and the both ends of the support plate extend to the both sides of the clamping groove.

4. The wheel nut according to any one of claims 1-3, characterized in that: The clamping groove is provided with a recess corresponding to the support plate.

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