Inner anti-falling hub

Abstract

The utility model discloses an inner anti-drop hub which comprises a hub part and a rim, a spoke is connected between the hub part and the rim, the rim comprises an outer rim, an outer convex peak is arranged on the rim, an outer tire ring seat is formed at the position, between the outer convex peak and the outer rim, on the rim, an installation hole is formed in the rim, and the installation hole penetrates through the rim. One end of the mounting hole is communicated with the upper end face of the outer convex peak, a bolt is in threaded connection in the mounting hole, and a part of the bolt penetrates out of the outer convex peak. According to the utility model, the outer edge of the tire can be effectively limited, and the tire is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel hub technical field more specifically, relate to an inner anti -drop wheel hub. BACKGROUND

[0002] The tire is installed on the wheel hub, and the wheel hub is fixed on the axle of the vehicle to support and protect the weight of the vehicle and the stability during driving. The tire is responsible for contacting the ground to provide grip and driving stability, and the wheel hub is the supporting structure of the tire to protect the vehicle axle from damage. When the tire is used with the wheel hub, if the tire continues to drive with insufficient tire pressure, the edge of the tire may deviate on the wheel hub or even fall off from the wheel hub, which poses a serious safety hazard. SUMMARY

[0003] The utility model discloses a wheel hub to overcome the deficiency of prior art, provide an inner anti -drop wheel hub.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model discloses an inner anti -drop wheel hub, including hub part and wheel rim, hub part and wheel rim are connected with the spoke between, the wheel rim includes the outer rim, is provided with the outer convex peak on the wheel rim, the position of the outer convex peak and the outer rim on the wheel rim forms the outer bead seat, is set up on the wheel rim installation hole, installation hole is set up through the wheel rim, and one end of installation hole is connected with the upper end surface of outer convex peak, and the threaded connection of screw bolt is established in installation hole, and the part of screw bolt sets up and goes out outer convex peak.

[0006] Further, the installation hole includes a through hole, a threaded hole and a limiting hole, the through hole, the threaded hole and the limiting hole are in communication, and the diameter of the limiting hole is greater than that of the threaded hole.

[0007] Further, the screw bolt includes a head and a screw rod connected with each other, the diameter of the head is greater than that of the screw rod, the screw rod is threadedly connected with the threaded hole, and the diameter of the head is less than that of the limiting hole.

[0008] Further, the installation hole is provided with a plurality of installation holes, and the plurality of installation holes are arranged in an annular array.

[0009] Further, a plurality of first sawtooth-shaped protruding portions are arranged on the outer bead seat.

[0010] Further, the top end of the first sawtooth-shaped protruding portion is arranged towards one side of the outer rim.

[0011] Further, the wheel rim includes an inner rim, an inner convex peak is arranged on the wheel rim, and an inner bead seat is formed at the position of the inner rim and the inner convex peak on the wheel rim, and a plurality of second sawtooth-shaped protruding portions are arranged on the upper part of the inner bead seat.

[0012] Further, the top end of the second sawtooth-shaped protruding portion is arranged towards one side of the inner rim.

[0013] Further, the air hole is arranged through the rim.

[0014] The utility model discloses the beneficial effect is: in the installation hole thread screw in bolt, make the part of bolt to wear, and the part of bolt can be located in the inside of tire outer edge, and the tire outer edge is positioned, prevents tire outer edge and moves inwards and makes tire and falls off from the wheel hub. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the inner anti-falling-off wheel hub in the embodiment;

[0016] Figure 2 It is a sectional view of the inner anti-falling-off wheel hub in the embodiment;

[0017] Figure 3 It is Figure 2 the enlarged schematic view of A in the middle;

[0018] Figure 4 It is Figure 2 the enlarged schematic view of B in the middle.

[0019] Reference signs: 1, hub; 2, spoke; 3, rim; 4, center hole; 5, fixed hole; 6, air hole; 7, outer rim; 8, outer convex peak; 9, outer bead seat; 10, first sawtooth-shaped protruding part; 11, through hole; 12, threaded hole; 13, limiting hole; 14, screw rod; 15, head; 16, inner rim; 17, inner convex peak; 18, inner bead seat; 19, second sawtooth-shaped protruding part; 20, bayonet. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0021] As Figures 1-4 shown, an inner anti-falling-off wheel hub includes hub 1 and rim 3, and spoke 2 is connected between hub 1 and rim 3. Center hole 4 is arranged at the middle position of hub 1, and a plurality of fixed holes 5 are further arranged on hub 1, and the plurality of fixed holes 5 are evenly distributed around center hole 4.

[0022] As Figures 2-4As shown, the rim 3 includes an outer rim 7 and an inner rim 16 at the end. A notch 20 is arranged on the rim 3 between the outer rim 7 and the inner rim 16, and the notch 20 is arranged close to the outer rim 7. An outer bead 8 is arranged on the rim 3 close to the outer rim 7, and an outer bead seat 9 is formed on the rim 3 between the outer bead 8 and the outer rim 7. The outer edge of the tire is located in the outer bead seat 9 and is limited by the outer bead 8 and the outer rim 7. An inner bead 17 is arranged on the rim 3 close to the inner rim 16, and an inner bead seat 18 is formed on the rim 3 between the inner rim 16 and the inner bead 17. The inner edge of the tire is located in the inner bead seat 18 and is limited by the inner bead 17 and the inner rim 16.

[0023] When the tire is underinflated, the outer edge and the inner edge of the tire are prone to come out of the outer bead seat 9 and the inner bead seat 18. Due to the structure of the rim 3, the inner edge of the tire can always abut against the rim 3 to maintain sealing when moving inward, while the outer edge of the tire moves inward and falls into the notch 20 to cause the tire to come off the rim 3 and leak air. Therefore, it is necessary to strengthen the limitation of the outer edge of the tire. By opening a mounting hole on the rim 3, the mounting hole penetrates the rim 3 and is arranged obliquely. One end of the mounting hole is in communication with the upper end surface of the outer bead 8, and a bolt is threadedly connected in the mounting hole, and a part of the bolt penetrates out of the outer bead 8. The part of the bolt that penetrates out can block the inward movement of the outer edge of the tire, thereby strengthening the limitation of the outer edge of the tire and better preventing the tire from falling off the hub.

[0024] The mounting hole includes a through hole 11, a threaded hole 12, and a limiting hole 13, which are in communication with each other. The diameter of the limiting hole 13 is greater than that of the threaded hole 12, and the diameter of the through hole 11 is greater than that of the threaded hole 12. The bolt includes a head 15 and a screw rod 14 connected with each other. The diameter of the head 15 is greater than that of the screw rod 14, the screw rod 14 is threadedly connected with the threaded hole 12, the diameter of the head 15 is smaller than that of the limiting hole 13, and the head 15 can abut against the end surface of the limiting hole 13 to form a limit, so that the length of the part of the screw rod 14 that penetrates out of the outer bead 8 is fixed, avoiding that the length of the penetrating part is too long to contact the inner wall of the tire.

[0025] The mounting hole is provided with a plurality of mounting holes arranged in an annular array, so that the bolts are uniformly distributed on the rim 3 and limit the outer edge of the tire from multiple positions to ensure the reliability of the limitation.

[0026] A plurality of first sawtooth-shaped protrusions 10 are arranged on the outer bead seat 9, and the top ends of the first sawtooth-shaped protrusions 10 are arranged towards the outer rim 7 side. A plurality of second sawtooth-shaped protrusions 19 are arranged on the upper portion of the inner bead seat 18, and the top ends of the second sawtooth-shaped protrusions 19 are arranged towards the inner rim 16 side. The top ends of the first sawtooth-shaped protrusions 10 and the top ends of the second sawtooth-shaped protrusions 19 are respectively used for acting on the outer edge of the tire and the inner edge of the tire, increasing the resistance of the outer edge of the tire and the inner edge of the tire to move inward, and helping to limit the tire.

[0027] A sealing ring is arranged in the through hole 11, and the sealing ring is used for sealing the gap between the screw rod 14 and the through hole 11, thereby preventing the tire from leaking air.

[0028] As shown in Figure 2 The rim 3 is also provided with an air hole 6, and the air hole 6 penetrates through the rim 3.

[0029] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solutions falling within the idea of the present application shall fall 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 principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. An internal anti-derailment wheel hub, characterized in that, The device includes a hub (1) and a rim (3), with spokes (2) connecting the hub (1) and the rim (3). The rim (3) includes an outer rim (7) and an outer protrusion (8) is provided on the rim (3). An outer tire bead seat (9) is formed on the rim (3) between the outer protrusion (8) and the outer rim (7). A mounting hole is provided on the rim (3), which penetrates the rim (3). One end of the mounting hole is connected to the upper end face of the outer protrusion (8). A bolt is threaded into the mounting hole, and a part of the bolt protrudes through the outer protrusion (8).

2. The inner anti-derailment hub according to claim 1, characterized in that, The mounting hole includes a through hole (11), a threaded hole (12), and a limiting hole (13). The through hole (11), the threaded hole (12), and the limiting hole (13) are connected. The diameter of the limiting hole (13) is larger than the diameter of the threaded hole (12).

3. The inner anti-derailment hub according to claim 2, characterized in that, The bolt includes a connected head (15) and a screw (14), the diameter of the head (15) being larger than that of the screw (14), the screw (14) being threaded into a threaded hole (12), and the diameter of the head (15) being smaller than that of the limiting hole (13).

4. The inner anti-derailment hub according to claim 1, characterized in that, The mounting holes are provided in a plurality of manner, and the plurality of mounting holes are arranged in a circular array.

5. The inner anti-derailment hub according to claim 1, characterized in that, The outer tire bead seat (9) is provided with multiple first serrated protrusions (10).

6. The inner anti-derailment hub according to claim 5, characterized in that, The top of the first serrated protrusion (10) is positioned facing the outer rim (7).

7. The inner anti-derailment hub according to claim 1, characterized in that, The rim (3) includes an inner rim (16), and an inner convex peak (17) is provided on the rim (3). An inner bead seat (18) is formed on the rim (3) at the position of the inner rim (16) and the inner convex peak (17). The upper part of the inner bead seat (18) is provided with several second serrated protrusions (19).

8. The inner anti-derailment hub according to claim 7, characterized in that, The top of the second serrated protrusion (19) is positioned toward the inner rim (16).

9. The inner anti-derailment hub according to claim 1, characterized in that, The rim (3) is provided with a valve hole (6), which is provided through the rim (3).

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