A wheel hub trim device

Abstract

A hub decoration device comprises a centrifugal lifting mechanism, a plurality of fillets distributed around the centrifugal lifting mechanism, and a fillet arranged between adjacent fillets, one end of the fillet is hinged to the outer edge of the hub, and the other end of the fillet is connected to the centrifugal lifting mechanism; the centrifugal lifting mechanism comprises a base, a rotating assembly and a centrifugal assembly; the rotating assembly comprises an inner cylinder, an outer cylinder sleeved outside the inner cylinder and a gear ring connected to the inner cylinder, the inner cylinder is connected to the outer cylinder, an active gap is arranged between the inner cylinder and the outer cylinder, the surface of the inner cylinder is provided with a spiral groove, and a plurality of elongated holes are arranged on the outer cylinder. The centrifugal lifting mechanism is applied to the hub, the centrifugal force is transmitted to the centrifugal lifting mechanism through the rotation of the hub, the ball head is driven to rise and fall in the spiral groove, the ball head drives the fillet, the fillet drives the fillet, and then the shape of the fillet is changed, in the high-speed state, each fillet is basically a plane, which is helpful to reduce the wind resistance of the fillet.

Description

TECHNICAL FIELD

[0001] The present application relates to automobile parts, in particular to a wheel hub decoration device. BACKGROUND

[0002] The automobile wheel hub decoration cover is mainly used for external decoration of the wheel hub, so that the rotating line of the wheel hub during the driving of the automobile is more beautiful. The existing wheel hub large disc decoration cover is generally a plastic injection molded body. For example, a wheel hub decoration cover disclosed in Chinese Patent Publication No. CN211441839U includes a large disc and a mounting bracket. The large disc is fixed on the wheel hub through the mounting bracket. The mounting bracket includes a connecting plate, connecting arms arranged on both sides of the connecting plate, and connecting ears arranged at the lower ends of the connecting arms. The connecting plate is provided with a first mounting hole. The large disc is connected with the first mounting hole of the connecting plate through a bolt. The connecting ears are provided with second mounting holes. The connecting ears are connected with the wheel hub through a bolt. The decoration cover does not have a changeable effect. It is necessary to design a device capable of changing the shape of the decoration part through centrifugal force. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a wheel hub decoration device capable of achieving lifting change through centrifugal force, changing the shape of the inlay part, and reducing the wind resistance of the inlay part when the wheel hub rotates at high speed.

[0004] To solve the above technical problems, the technical scheme of the present application is: a hub decoration device, comprising a centrifugal lifting mechanism arranged at the center of the surface of the hub, a plurality of inlay strips evenly distributed around the circumference of the centrifugal lifting mechanism, and inlay pieces arranged between adjacent inlay strips, one end of the inlay strip is hinged to the outer edge of the hub, the other end of the inlay strip is connected to the centrifugal lifting mechanism, and the two sides of the inlay piece are connected to the inlay strips on both sides respectively; the centrifugal lifting mechanism comprises a base, a rotating assembly and a plurality of centrifugal assemblies for driving the rotating assembly to rotate by centrifugal force; the rotating assembly comprises an inner cylinder, an outer cylinder sleeved outside the inner cylinder and a gear ring connected to the inner cylinder, the inner cylinder is connected to the outer cylinder, and an active gap is arranged between the inner cylinder and the outer cylinder, the surface of the inner cylinder is provided with a spiral groove, and a plurality of elongated holes are arranged on the outer cylinder; the centrifugal assemblies are evenly distributed in a circle, the centrifugal assembly comprises a sliding rail fixed on the base, a sliding block in sliding cooperation with the sliding rail, a rack fixed on the sliding block, a gear pivoted on the base and engaged with the rack, and a spring for resetting the rack, the sliding rail points to the center of the base, and the gear is engaged with the gear ring; one end of the inlay strip is provided with a ball head, the ball head is arranged in the active gap and walks in the spiral groove. The principle of the present application is: when the centrifugal lifting mechanism is in a low speed state, the centrifugal force is less than the pulling force of the spring, at this time the sliding block is at the inner end of the sliding rail, the rack cannot drive the gear, and the gear cannot drive the rotating assembly through the gear ring; when the centrifugal lifting mechanism is in a high speed state, the centrifugal force is greater than the pulling force of the spring, the sliding block drives the rack to move outward along the sliding rail, the rack drives the gear to rotate, the gear drives the gear ring to rotate and in turn drives the rotating assembly to rotate; the centrifugal lifting mechanism is applied to the hub, when the centrifugal force drives the rotating assembly to rotate, the ball head moves relatively in the spiral groove, when the ball head moves upward along the spiral groove, the inner end of the inlay strip is lifted, and when the ball head moves downward along the spiral groove, the inner end of the inlay strip is lowered, in the high speed state, through the cooperation of the centrifugal lifting mechanism and the inlay strip, each inlay piece can basically form a plane, which helps to reduce the wind resistance of the inlay piece.

[0005] As an improvement, the gear ring and the inner cylinder are formed by in-mold injection molding.

[0006] As an improvement, there are three centrifugal assemblies on the base in total.

[0007] As an improvement, the base is provided with a mounting groove at the position of the sliding rail, and the sliding rail is arranged in the mounting groove.

[0008] As an improvement, the center of the base is provided with a mounting column, one end of the spring is connected to one end of the rack, and the other end of the spring is connected to the mounting column.

[0009] As an improvement, the outer side of the base is provided with a limiting block for limiting the rack.

[0010] As improvement, the base is provided with a clamping seat, the clamping seat is provided with a bearing, the gear is connected with the rotating shaft through a pin key, the rotating shaft is connected with the bearing, and the rotating shaft is fixed through a clasp spring.

[0011] As improvement, the insert strip comprises a metal rod and a plastic piece sleeved on the metal rod, one end of the metal rod is hinged with the hub, and the other end of the metal rod is provided with the ball head.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The centrifugal lifting mechanism is applied to the hub, and the centrifugal force is transmitted to the centrifugal lifting mechanism through the rotation of the hub to drive the ball head to lift in the spiral groove, the ball head drives the insert strip, the insert strip drives the insert piece, and the form of the insert piece is changed, in the high-speed state, each insert piece is basically a plane, which helps to reduce the wind resistance of the insert piece. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the hub decoration device under low rotating speed.

[0015] Figure 2 It is a schematic view of the hub decoration device under high rotating speed.

[0016] Figure 3 It is a schematic view of the centrifugal lifting mechanism.

[0017] Figure 4 It is a sectional view of the centrifugal lifting mechanism.

[0018] Figure 5 It is a schematic view of the centrifugal assembly.

[0019] Figure 6 It is a top view of the centrifugal assembly. EMBODIMENT

[0020] The present application will be further described below in combination with the drawings of the specification.

[0021] As Figure 1 , 2The hub ornament device comprises a centrifugal lifting mechanism 4 arranged at the center of the surface of a hub 1, a plurality of inlay strips 2 evenly distributed around the circumference of the centrifugal lifting mechanism 4, and inlay pieces 3 arranged between adjacent inlay strips 2. One end of the inlay strip 2 is hingedly connected to the outer edge of the hub 1, and the other end of the inlay strip 2 is movably connected to the centrifugal lifting mechanism 4. The centrifugal lifting mechanism 4 can drive the one end of the inlay strip 2 to lift, so that the inlay pieces 3 are in an inclined state or a horizontal state. The inlay strip 2 comprises a metal rod 21 and a plastic piece sleeved on the metal rod 21. One end of the metal rod 21 is hingedly connected to the hub 1, and the other end of the metal rod 21 is provided with a ball head 22 and movably connected to the centrifugal lifting mechanism 4. The metal rod 21 has reliable strength for better connection. The inlay piece 3 is substantially fan-shaped, and the two sides of the inlay piece 3 are connected to the two inlay strips 2 respectively. In this embodiment, the inlay piece 3 and the plastic piece of the inlay strip 2 are connected through buckling.

[0022] As Figures 3 to 6As shown, the centrifugal lifting mechanism 4 comprises a base 41, a rotating assembly 43 and a plurality of centrifugal assemblies 42 driving the rotating assembly 43 to rotate by centrifugal force. The rotating assembly 43 comprises an inner cylinder 431, an outer cylinder 433 sleeved outside the inner cylinder 431 and a gear ring 421 connected with the inner cylinder 431; the inner cylinder 431 is similar in shape to the outer cylinder 433, the inner cylinder 431 and the outer cylinder 433 are connected with each other, an active gap is arranged between the inner cylinder 431 and the outer cylinder 433, a spiral groove 432 is arranged on the surface of the inner cylinder 431, a plurality of elongated holes are arranged on the outer cylinder 433, the elongated holes are arranged in up-down direction and correspond to the inlays 2 one by one. The centrifugal assemblies 42 are uniformly distributed in a circle, in the embodiment, three centrifugal assemblies 42 are arranged on the base 41 in total, the three centrifugal assemblies 42 provide three supporting points for the rotating assembly 43, and the stability of the support is better; the centrifugal assembly 42 comprises a sliding rail 425 fixed on the base 41, a sliding block 424 in sliding cooperation with the sliding rail 425, a rack 423 fixed on the sliding block 424, a gear wheel 422 pivoted on the base 41 and engaged with the rack 423 and a spring 427 for resetting the rack 423; the gear ring 421 and the inner cylinder 431 are formed by in-mold injection molding, the gear ring 421 and the three gear wheels 422 form a planetary gear 422 device, the rack 423 drives the gear wheel 422 to rotate, the gear wheel 422 drives the gear ring 421, and the gear ring 421 drives the entire rotating assembly 43; an installation groove is arranged on the base 41 opposite the sliding rail 425, the sliding rail 425 is arranged in the installation groove, the inner end of the sliding rail 425 points to the center of the base 41, and the outer end of the sliding rail 425 points to the outside of the base 41, so that the sliding block 424 can slide linearly from the inside to the outside along the sliding rail 425 under the action of centrifugal force; an installation column 428 is arranged at the center of the base 41, one end of the spring 427 is connected with one end of the rack 423, the other end of the spring 427 is connected with the installation column 428, when the centrifugal force acting on the sliding block 424 is greater than the pulling force of the spring 427, the sliding block 424 moves outwardly against the pulling force of the spring 427; a limiting block 426 for limiting the rack 423 is arranged on the outside of the base 41, the limiting block 426 restricts the maximum stroke of the rack 423, and further restricts the maximum rotation angle of the rotating assembly 43. One end of the inlay is provided with a ball head 22, the ball head 22 is arranged in the active gap and walks in the spiral groove 432, after the rotating assembly 43 rotates, the inlay 2 does not follow the rotation, but the ball head 22 is displaced relative to the spiral groove 432, so that the height of the ball head 22 relative to the inner cylinder 431 is changed.

[0023] The principle of the present application is: when the centrifugal lifting mechanism is in a low speed state, the centrifugal force is less than the pulling force of the spring 427, at this time the sliding block 424 is at the inner end of the sliding rail 425, the rack 423 cannot drive the gear 422, and the gear 422 cannot drive the rotating assembly 43 through the gear ring 421; when the centrifugal lifting mechanism is in a high speed state, the centrifugal force is greater than the pulling force of the spring 427, the sliding block 424 drives the rack 423 to move outward along the sliding rail 425, the rack 423 drives the gear 422 to rotate, the gear 422 drives the gear ring 421 and then drives the rotating assembly 43 to rotate; when the centrifugal lifting mechanism is applied to the hub, the ball head 22 moves relatively in the spiral groove 432 when the rotating assembly 43 driven by the centrifugal force rotates, the ball head 22 drives the inner end of the inlay to rise when moving upward along the spiral groove 432, and the ball head 22 drives the inner end of the inlay to descend when moving downward along the spiral groove 432; in the high speed state, through the cooperation of the centrifugal lifting mechanism and the inlay, each inlay can basically be in a plane, which helps to reduce the wind resistance of the inlay.

Claims

1. A wheel cover assembly, characterized by: The invention relates to a wheel hub with a centrifugal lifting mechanism arranged at the center of the wheel hub surface, a plurality of strips evenly distributed around the circumference of the centrifugal lifting mechanism, and inserts arranged between adjacent strips, one end of the strip being hinged to the outer edge of the wheel hub, the other end of the strip being connected to the centrifugal lifting mechanism, and the two sides of the insert being connected to the strips on both sides respectively; the centrifugal lifting mechanism comprises a base, a rotating assembly and a plurality of centrifugal assemblies driven to rotate the rotating assembly by centrifugal force; the rotating assembly comprises an inner cylinder, an outer cylinder sleeved outside the inner cylinder, and a gear ring connected to the inner cylinder, the inner cylinder being connected to the outer cylinder, an active gap being arranged between the inner cylinder and the outer cylinder, the surface of the inner cylinder being provided with a spiral groove, and a plurality of elongated holes being arranged on the outer cylinder; the centrifugal assemblies are evenly distributed in a circle, the centrifugal assemblies comprising a slide rail fixed on the base, a slide block in sliding cooperation with the slide rail, a rack fixed on the slide block, a gear in engagement with the rack and pivoted on the base, and a spring for resetting the rack, the slide rail pointing to the center of the base, and the gear being in engagement with the gear ring; one end of the strip is provided with a ball head, the ball head being arranged in the active gap and walking in the spiral groove; the center of the base is provided with a mounting column, one end of the spring being connected to one end of the rack, and the other end of the spring being connected to the mounting column; the base is provided with a clamping seat, the clamping seat being provided with a bearing, the gear being connected to a rotating shaft through a pin key, the rotating shaft being connected to the bearing, and the rotating shaft being fixed through a clamping spring; the strip comprises a metal rod and a plastic piece sleeved on the metal rod, one end of the metal rod being hinged to the wheel hub, and the other end of the metal rod being provided with the ball head.

2. A hub trim device as defined in claim 1, wherein: The gear ring and the inner cylinder are formed by in-mold injection molding.

3. A hub trim device as defined in claim 1 wherein: There are three centrifugal assemblies on the base in total.

4. A hub trim device as defined in claim 1 wherein: The base is provided with mounting grooves at the positions of the slide rails, and the slide rails are arranged in the mounting grooves.

5. A hub trim device as in claim 1, wherein: The outer side of the base is provided with limiting blocks for limiting the racks.

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