A wheel hub trim device

Abstract

A hub decoration device comprises a centrifugal lifting mechanism arranged at the center of the surface of a hub, a plurality of inlays arranged around the circumference of the centrifugal lifting mechanism, and a plurality of inlay pieces arranged between adjacent inlays, one end of the inlay is hinged to the outer edge of the hub, the other end of the inlay is connected to the centrifugal lifting mechanism, and the two sides of the inlay piece are connected to the inlays on both sides respectively; the centrifugal lifting mechanism comprises a central shaft, an intermediate platform sleeved on the central shaft, a plurality of pendulums hinged to the intermediate platform, and a lifting cylinder sleeved on the central shaft and capable of lifting along the central shaft. The centrifugal lifting mechanism is applied to the hub, the centrifugal force is transmitted to the lifting mechanism through the rotation of the hub, the lifting cylinder of the lifting mechanism is driven to lift, the lifting cylinder can drive the inlay on the hub, and then the shape of the inlay is changed, in the high-speed state, each inlay is basically a plane, which helps to reduce the wind resistance of the inlay.

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] In order to solve the above technical problems, the technical solution of the present invention is: a wheel hub decoration device, including a centrifugal lifting mechanism arranged at the center of the wheel hub surface, a plurality of inlays evenly distributed around the circumference of the centrifugal lifting mechanism and an inlay arranged between adjacent inlays, one end of the inlay is hinged to the outer edge of the wheel hub, the other end of the inlay is connected to the centrifugal lifting mechanism, and the two sides of the inlay are respectively connected to the inlays on both sides; the centrifugal lifting mechanism includes a central axis, an intermediate platform sleeved on the central axis, a plurality of pendulums hinged to the intermediate platform and a lifting cylinder sleeved on the central axis and capable of being lifted and lowered along the same; the lifting cylinder includes a top plate, a bottom plate and a side panel, and the side panels are provided with through-holes corresponding to the positions of the pendulums; the intermediate platform is arranged in the lifting cylinder, and the pendulum includes a swing arm and a hammer body, one end of the swing arm is hinged to the intermediate platform, the other end of the swing arm extends out of the lifting cylinder through the through-hole and is connected to the hammer body, and one end of the inlay is movably connected to the side panel. The principle of the present invention is: when the centrifugal lifting mechanism is in a low-speed state, the centrifugal force is less than the gravity of the pendulum, and at this time the pendulum and the lifting cylinder are both in the lowest position; when the centrifugal lifting mechanism is in a high-speed state, the centrifugal force is greater than the gravity of the pendulum, and the pendulum swings upward under the action of centrifugal force. Since the pendulum passes through the side panel, the swing of the pendulum can drive the lifting cylinder to rise together, that is, the lifting cylinder can be lifted and lowered with the magnitude of the centrifugal force; the centrifugal lifting mechanism is applied to the wheel hub, the central axis is fixed at the wheel hub shaft hole, and a number of inserts are provided between the lifting cylinder and the outer edge of the wheel hub, one end of the insert is hinged to the wheel hub, and the other end of the insert is movably connected to the lifting cylinder, and inserts are provided between adjacent inserts. The lifting cylinder changes the shape of the inserts by driving the inserts. Under high-speed conditions, each insert is basically in a plane, which helps to reduce the wind resistance of the inserts.

[0005] As an improvement, the central axis includes a first cylinder at the bottom, a second cylinder in the middle and a prism at the top, the first cylinder and the second cylinder are connected by a cone, and the middle platform is sleeved on the second cylinder.

[0006] As an improvement, the bottom plate of the lifting cylinder is provided with a first through hole for the second cylinder to pass through, and the top plate of the lifting cylinder is provided with a second through hole for the prism to pass through, and the shape of the second through hole is similar to that of the prism.

[0007] As an improvement, the intermediate platform includes a disc body and a fixing sleeve provided at the bottom of the disc body, and the fixing sleeve is fixed on the central shaft via a pin shaft.

[0008] As an improvement, an annular groove is provided on the inner side of the disk body, a retaining spring is provided in the annular groove, an avoidance groove is provided on the disk body corresponding to the pendulum, and one end of the swing arm is provided in the avoidance groove and hinged to the retaining spring.

[0009] As an improvement, a spring is provided between the middle platform and the top plate.

[0010] 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 movably connected with the side wall.

[0011] As improvement, the side wall is provided with a mounting hole corresponding to the insert strip, and the one end of the metal rod is provided with a ball head, and the ball head is arranged in the mounting hole.

[0012] The present application has the following beneficial effects compared with the prior art:

[0013] The centrifugal lifting mechanism is applied to the hub, and the centrifugal force is transmitted to the lifting mechanism through the rotation of the hub to drive the lifting cylinder of the lifting mechanism to lift, the lifting cylinder can drive the insert piece on the hub to change the form of the insert piece, and 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 speed.

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

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

[0017] Figure 4 It is an exploded view of the centrifugal lifting mechanism.

[0018] Figure 5 It is a sectional view of the centrifugal lifting mechanism under low speed.

[0019] Figure 6 It is a sectional view of the centrifugal lifting mechanism under high speed. EMBODIMENT

[0020] The present application will be further described below in conjunction 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 movably connected to the centrifugal lifting mechanism 4. The metal rod 21 has reliable strength and is used for better connection. The inlay piece 3 is substantially in the shape of a sector. The two sides of the inlay piece 3 are respectively connected to the two inlay strips 2. In this embodiment, the inlay piece 3 and the plastic pieces of the inlay strips 2 are connected through buckling.

[0022] As Figures 3 to 6As shown, the centrifugal lifting mechanism 4 comprises a central shaft 41, an intermediate platform 44 sleeved on the central shaft 41, a plurality of pendulums 43 hinged to the intermediate platform 44, and a lifting cylinder 42 sleeved on the central shaft 41 and capable of lifting along the central shaft 41. The central shaft 41 comprises a first cylinder 411 located at the lower part, a second cylinder 413 located at the middle part, and a prismatic body 414 located at the upper part. The first cylinder 411 is connected to the second cylinder 413 through a taper 412, the diameter of the first cylinder 411 is larger than that of the second cylinder 413, and the first cylinder 411 is connected to the second cylinder 413 through the taper 412. The prismatic body 414 is hexagonal and has a diameter substantially the same as that of the second cylinder 413. The prismatic body 414 has an anti-rotation function, and the lower end of the first cylinder 411 is fixed in a hub shaft hole. The lifting cylinder 42 has a substantially cylindrical hollow structure, and comprises a top plate 421, a bottom plate 423, and a side plate 422. The side plate 422 is provided with perforations 425 corresponding to the positions of the pendulums 43, and is provided with mounting holes 424 corresponding to the positions of the inlay strips 2. The mounting holes 424 are located above the perforations 425, and one-to-one correspondence exists between the mounting holes 424 and the perforations 425. The number of the mounting holes 424 and the perforations 425 is determined according to design requirements. In this embodiment, there are six groups in total. One end of the metal rod 21 of the inlay strip 2 is provided with a ball head, and the ball head is arranged in the mounting hole 424, so that the inlay strip 2 is movably connected to the lifting cylinder 42. The bottom plate 423 of the lifting cylinder 42 is provided with a first through hole 426 for the second cylinder 413 to pass through, and the top plate 421 of the lifting cylinder 42 is provided with a second through hole 427 for the prismatic body 414 to pass through. The second through hole 427 has a shape similar to that of the prismatic body 414, and plays a guiding role in lifting the lifting cylinder 42, and prevents the lifting cylinder 42 from rotating during lifting. The intermediate platform 44 is arranged in the lifting cylinder 42, and can serve as a limiting mechanism of the lifting cylinder 42. When the lifting cylinder 42 reaches the maximum lifting stroke, the bottom plate 423 abuts against the intermediate platform 44. When the lifting cylinder 42 reaches the maximum lowering stroke, the top plate 421 abuts against the intermediate platform 44. The intermediate platform 44 comprises a disc body 441 and a fixing sleeve arranged at the bottom of the disc body 441. The disc body 441 and the fixing sleeve are integrally formed. The fixing sleeve is fixed to the first cylinder 411 of the central shaft 41 through a pin shaft. The inner side of the disc body 441 is provided with an annular groove, and a clamping spring 442 is arranged in the annular groove. The disc body 441 is provided with an avoiding groove corresponding to the position of the pendulum 43. One end of the pendulum 43 is arranged in the avoiding groove and is hinged to the clamping spring 442. A plurality of springs 45 for returning are arranged between the intermediate platform 44 and the top plate 421. One end of the spring 45 is fixed to the bottom of the top plate 421, and the other end of the spring 45 is fixedly connected to the disc body 441. When the lifting cylinder 42 is at the low position, the spring 45 is in a natural state. When the lifting cylinder 42 is lifted, the spring 45 is stretched. After the centrifugal force is eliminated, the lifting cylinder 42 can be pulled back to the low position by the elastic force of the spring 45.The pendulum 43 comprises a swing arm 431 and a hammer body 432, one end of the swing arm 431 is hinged with the snap spring 442 of the intermediate platform 44, the other end of the swing arm 431 extends out of the lifting cylinder 42 through the through hole 425 and is connected with the hammer body 432.

[0023] The principle of the present application is that when the centrifugal lifting mechanism 4 is in a low speed state, the centrifugal force is less than the gravity of the pendulum 43, at this time, the pendulum 43 and the lifting cylinder 42 are both in the lowest position; when the centrifugal lifting mechanism 4 is in a high speed state, the centrifugal force is greater than the gravity of the pendulum 43, the pendulum 43 swings upward under the action of the centrifugal force, since the pendulum 43 passes through the side wall 422, the swing of the pendulum 43 can drive the lifting cylinder 42 to rise together, that is, the lifting cylinder 42 can rise and fall according to the size of the centrifugal force; the centrifugal lifting mechanism is applied to the hub, the central shaft 41 is fixed at the hub shaft hole, a plurality of inlaid strips 2 are arranged between the lifting cylinder 42 and the outer edge of the hub, one end of the inlaid strip 2 is hinged with the hub 1, the other end of the inlaid strip 2 is movably connected with the lifting cylinder 42, inlaid pieces are arranged between adjacent inlaid strips, the lifting cylinder 42 changes the shape of the inlaid pieces by driving the inlaid strips 2, in the high speed state, each inlaid piece 2 is basically a plane, which helps to reduce the wind resistance of the inlaid piece 3.

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 hingedly connected 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 central shaft, an intermediate platform sleeved on the central shaft, a plurality of pendulums hingedly connected to the intermediate platform, and a lifting cylinder sleeved on the central shaft and capable of lifting along the central shaft; the lifting cylinder comprises a top plate, a bottom plate and a side plate, and the side plate is provided with a perforation corresponding to the position of the pendulum; the intermediate platform is arranged in the lifting cylinder, the pendulum comprises a pendulum arm and a hammer body, one end of the pendulum arm is hingedly connected to the intermediate platform, the other end of the pendulum arm extends out of the lifting cylinder through the perforation and is connected to the hammer body, and one end of the strip is movably connected to the side plate; the central shaft comprises a first cylinder located at the lower part, a second cylinder located at the middle part and a prism located at the upper part, the first cylinder is connected to the second cylinder through a taper, the intermediate platform is sleeved on the second cylinder, the bottom plate of the lifting cylinder is provided with a first through hole for the second cylinder to pass through, the top plate of the lifting cylinder is provided with a second through hole for the prism to pass through, and the shape of the second through hole is similar to that of the prism; the intermediate platform comprises a disc body and a fixing sleeve arranged at the bottom of the disc body, the fixing sleeve is fixed on the central shaft through a pin shaft, the inner side of the disc body is provided with an annular groove, a snap spring is arranged in the annular groove, the disc body is provided with an avoidance groove corresponding to the position of the pendulum, and one end of the pendulum arm is arranged in the avoidance groove and is hingedly connected to the snap spring.

2. A hub trim device as defined in claim 1, wherein: A spring is arranged between the intermediate platform and the top plate.

3. A hub trim device as defined in claim 1 wherein: The strip comprises a metal rod and a plastic part sleeved on the metal rod, one end of the metal rod is hingedly connected to the wheel hub, and the other end of the metal rod is movably connected to the side plate.

4. A hub trim device as defined in claim 3 wherein: One end of the metal rod is provided with a ball head, and the ball head is arranged in the mounting hole.

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