TWI704947B - Fingertip spinning top with dual-level magic cube function - Google Patents

Abstract

The present invention relates to a fingertip top, which includes two middle blocks and eight corner blocks, the two middle blocks are connected to each other in a relatively pivotable manner, and one of the middle blocks is provided with a bearing inside, so that the two The two middle blocks rotate together around a first axis through a bearing. The eight corner blocks are pivoted on the four corners of the two middle blocks in pairs, so that each middle block can drive the four corner blocks together. It rotates around the first axis, and each of the diagonal blocks can jointly pivot relative to the two middle blocks around a second axis perpendicular to the first axis. In this way, the fingertip top of the present invention combines the function of the two-stage magic cube, which makes the gameplay more diverse and complex, and thus achieves the effect of enhancing the fun.

Description

Fingertip spinning top with dual-level magic cube function

The present invention is related to a fingertip top, and particularly refers to a fingertip top combined with a two-level magic cube game.

The fingertip top is a popular toy in recent years. Its structure mainly includes a top body. The middle of the top body is provided with a bearing. The two ends of the bearing are respectively provided with a cover. The user pinches with two fingers. Hold the two protective covers, and then rotate the main body of the gyro. The main body of the gyro can be rotated between the two fingers of the user by the setting of the bearing, but in fact, this kind of gameplay is too monotonous and may be played for the user. I don't want to play after time.

In order to increase the interest, the CN207076098U patent case reveals a five-axis first-order Rubik's Cube, which includes a central block, five intermediate blocks and five adjacent blocks. The central block is provided with a central rotating shaft and two ends of the central rotating shaft. Each is provided with a finger pinch plate, and the pinch plate can be used as a finger tip top by pinching the pinch plate with two fingers. In addition, the central block is provided with five shaft heads located on the same plane in a radial manner, the five middle blocks are respectively rotatably fitted on the five shaft heads, and the five adjacent blocks are respectively clamped to the adjacent two. Between two intermediate blocks, so when one intermediate block and its adjacent two adjacent blocks rotate 90 degrees together, another adjacent intermediate block and another adjacent adjacent block can also rotate 90 degrees. Degree, thereby providing a gameplay similar to a magic cube. However, since the aforementioned patent case is a single-layer structure, the overall gameplay and variations will be limited, so the effect of enhancing the fun is still not ideal.

The main purpose of the present invention is to provide a fingertip spinning top, which has the function of a two-stage magic cube, which makes the gameplay more diversified and enhances the fun.

In order to achieve the above-mentioned main purpose, the fingertip top of the present invention includes an intermediate component, a center component, and a plurality of corner block components.

The intermediate assembly has a first intermediate block and a second intermediate block. The first and second intermediate blocks are connected to each other in a relatively pivotable manner, so that the two can rotate relative to each other around a first axis. The center of the first middle block has a first shaft hole penetrating through two opposite side surfaces, the center of the second middle block has a second shaft hole penetrating through two opposite sides, the first and second shaft holes are in coaxial communication, in addition, The outer periphery of the first middle block is provided with a plurality of first arc grooves, the first arc grooves are arranged in a ring shape at equal intervals relative to the first shaft hole, and the outer periphery of the second middle block is provided with a plurality of second arc grooves , The second arc grooves are arranged in an equally spaced ring shape with respect to the second shaft hole, wherein any one of the first arc grooves and any one of the second arc grooves abut each other one to one to form a pivot groove .

The center assembly has a first center piece, a second center piece, and a bearing. The first center piece has a first disc body and a first shaft connecting the first disc body. The first disc The body is located at one end of the first shaft hole of the first intermediate block, the second center piece has a second disc body and a second shaft connecting the second disc body, the second disc body is located in the second One end of the second shaft hole of the intermediate block, the second shaft is connected to the first shaft of the first intermediate piece, and the bearing is supported by the first shaft of the first central piece and the second shaft of the second central piece. Supported by two shafts, the first and second intermediate blocks are allowed to rotate together around the first axis.

Each of the corner block components has a first corner block and a second corner block, the first and second corner blocks are arranged side by side, the first corner block has a first arc-shaped portion, and the first corner block is An arc-shaped portion is provided in the first arc groove of the first intermediate block, so that the first corner block can rotate with the first intermediate block around the first axial direction, and the second corner block has a second arc The second arc-shaped portion of the second corner block is arranged in the second arc groove of the second middle block, so that the second corner block can rotate with the second middle block around the first axis, In addition, the first arc-shaped portion of the first corner block and the second arc-shaped portion of the second corner block are butted with each other to jointly form a pivoting portion, and the pivoting portion of each corner block assembly is pivotably disposed at In the pivotal groove of the middle assembly, each corner block assembly can rotate relative to the middle assembly around a second axis perpendicular to the first axis.

It can be seen from the above that the fingertip gyro of the present invention can not only be used as a fingertip gyro, but also has the function of a two-stage magic cube in its structure. This can make the gameplay more diverse and more complicated, thereby enhancing the fun. Effect.

Preferably, the bearing of the center assembly is arranged in the first shaft hole of the first intermediate block, and is supported by the first shaft of the first center piece and the second shaft of the second center piece; and The outer periphery of the first middle block has a plurality of first extension grooves, each of the first extension grooves horizontally extends from a first arc groove in a direction away from the second middle block, and the outer circumference of the second middle block The rim has a plurality of second extending grooves, each of the second extending grooves horizontally extending from a second arc groove in a direction away from the first intermediate block, and one of the first extending grooves and the second extending grooves They are opposite to each other one to one, and each of the first extension grooves and the second extension grooves is provided with a first magnetic member; each of the first and second corner blocks is provided with a second magnetic member respectively . Thereby, when the second magnetic parts are adsorbed by the first magnetic parts, the corner block components will remain in position and will not rotate freely relative to the intermediate component.

Preferably, the first intermediate block integrally extends radially from the hole wall of the first shaft hole with a retaining edge, and the first shaft of the first center piece has a large diameter portion connected to the first disc body And a small-diameter part connecting the large-diameter part, a shoulder is formed at the junction of the large-diameter part and the small-diameter part, the second shaft of the second center piece has a rod hole, and the rod hole is The small diameter part of the first shaft of a center piece is penetrated. In addition, the bearing has an inner ring, an outer ring, and a plurality of balls arranged between the inner and outer rings. The inner ring of the bearing is sleeved on the small diameter portion of the first shaft of the first center piece. Abutting between the shoulder of the first center piece and the end surface of the second shaft of the second center piece, the outer ring of the bearing abuts against the retaining edge of the first intermediate block, so that the bearing is assembled and positioned .

Preferably, the first intermediate block integrally extends a first ring portion from itself toward a side surface of the second intermediate block along the axial direction of the first shaft hole toward the second intermediate block, and the first ring The portion has a screw hole, the second intermediate block radially extends a second ring portion integrally from the hole wall of the second shaft hole, and the second ring portion of the second intermediate block is rotatably sleeved on The first ring portion of the first intermediate block. In addition, the intermediate component further has a washer and a screw, the washer abuts against the first ring portion of the first intermediate block and the second ring portion of the second intermediate block, and the washer has a through hole The screw passes through the perforation of the gasket and is screwed into the screw hole of the first ring portion of the first intermediate block, so that the first and second intermediate blocks are assembled together in a rotatable manner.

Preferably, each of the first corner pieces has a first stopping portion connected to the first arc-shaped portion, each of the second corner pieces has a second stopping portion connected to the second arc-shaped portion, and each of the The first stop portion of the first corner block and the second stop portion of each of the second corner blocks abut each other to form a stop block, the outer diameter of the stop block is larger than the outer diameter of the pivot groove, so that the The interference between the stop block and the periphery of the notch of the pivotal groove prevents each corner block assembly from separating from the first intermediate block.

The detailed structure, features, assembly or use of the fingertip top provided by the present invention will be described in the detailed description of the subsequent implementation. However, those with ordinary knowledge in the field of the present invention should be able to understand that these detailed descriptions and specific examples for implementing the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the patent application of the present invention.

The applicant first explains here that throughout the specification, including the following embodiments and claims in the scope of the patent application, the nouns related to directionality are based on the directions in the drawings. Secondly, in the following embodiments and drawings, the same element numbers represent the same or similar elements or structural features.

Please refer to FIG. 1, FIG. 2 and FIG. 5. The fingertip top 10 of the present invention includes an intermediate component 11, a center component 13, and a plurality of corner block components 14 (four in this embodiment).

The middle assembly 11 has a first middle block 20 having a rectangular shape and a second middle block 30 having a rectangular shape, wherein:

The first middle block 20 has a first shaft hole 21, four first arc grooves 22 and four first extension grooves 23. The first shaft hole 21 is located in the center of the first middle block 20 and penetrates through the first middle block 20. On the inner and outer sides, as shown in Figure 3, the four first arc grooves 22 are located at the center of the four sides of the first middle block 20, so that the four first arc grooves 22 are equally spaced with respect to the first shaft hole 21 Arranged in a ring shape, the four first extension grooves 23 are located at the center of the four side surfaces of the first intermediate block 20 and are respectively connected with a first arc groove 22, and each first extension groove 23 faces from the center of the first arc groove 22 The direction away from the second middle block 30 extends horizontally. In addition, as shown in FIG. 2, the first intermediate block 20 further has a first ring portion 24 and a retaining edge 26. The first ring portion 24 extends from the first intermediate block 20 to one side of the second intermediate block along the first The axial direction of the shaft hole 21 integrally extends toward the second intermediate block 30, and the first ring portion 24 has two screw holes 25, and the retaining edge 26 integrally extends radially from the hole wall of the first shaft hole 21 .

The second middle block 30 has a second shaft hole 31, four second arc grooves 32 and four second extension grooves 33. The second shaft hole 31 is located in the center of the second middle block 30 and penetrates through the second middle block 30. On the inner and outer sides, as shown in FIG. 3, four second arc grooves 32 are located in the center of the four side surfaces of the second middle block 30, so that the four second arc grooves 32 are equally spaced with respect to the second shaft hole 31 Arranged in a ring shape, the four second extension grooves 33 are located at the center of the four side surfaces of the second intermediate block 30 and communicate with a second arc groove 32 respectively, and each second extension groove 33 faces from the center of the second arc groove 32 The direction away from the first intermediate block 20 extends horizontally. In addition, as shown in FIG. 2, the second intermediate block 30 has a second ring portion 34 which integrally extends radially from the hole wall of the second shaft hole 31.

During assembly, as shown in Figures 2 and 5, the second intermediate block 30 is sleeved on the first ring portion 24 of the first intermediate block 20 with the second ring portion 34, and then a gasket 35 is used to abut against the first ring portion at the same time. The first ring portion 24 of an intermediate block 20 and the second ring portion 34 of the second intermediate block 30 are then passed through the two through holes 36 of the washer 35 with two screws 37 and locked on the first intermediate block 20. Inside the screw hole 25 of the ring portion 24, the assembly of the first intermediate block 20 and the second intermediate block 30 is completed in this way. After the assembly is completed, the first intermediate block 20 and the second intermediate block 30 can relatively rotate around a first axis A1, and, as shown in FIG. 3, four first arc grooves 22 and four second arcs The grooves 32 abut each other one to one to form a circular pivot groove 12 together.

The center assembly 13 has a first center piece 40, a second center piece 50 and a bearing 60, wherein:

The first center piece 40 has a first disc body 41 and a first shaft 42, as shown in FIGS. 2 and 5, the first shaft 42 has a large diameter portion 43 and a small diameter portion 44. One end of the portion 43 is connected to the first plate 41, and the other end of the large diameter portion 43 is connected to the small diameter portion 44, so that a shoulder 45 is formed at the junction of the large diameter portion 43 and the small diameter portion 44.

The second center piece 50 has a second plate 51 and a second shaft 52. As shown in FIGS. 2 and 5, one end of the second shaft 52 is connected to the second plate 51, and the second shaft 52 There is a rod hole 53.

The bearing 60 has an inner ring 61, an outer ring 62 and a plurality of balls 63 arranged between the inner ring 61 and the outer ring 62.

When assembling with the intermediate assembly 11, as shown in FIGS. 2 and 5, the bearing 60 is arranged in the first shaft hole 21 of the first intermediate block 20, and the outer ring 62 of the bearing 60 abuts against the first intermediate block 20 The retaining edge 26, then the small diameter portion 44 of the first shaft 42 of the first center piece 40 passes through the inner ring 61 of the bearing 60 and is inserted into the rod hole 53 of the second shaft 52 of the second center piece 50 , The inner ring 61 of the bearing 60 is abutted between the shoulder 45 of the first shaft 42 of the first center piece 40 and the end surface of the second shaft 52 of the second center piece 50 to complete the positioning of the bearing 60. In this way, after the assembly is completed, the first disc body 41 of the first center piece 40 is located at one end of the first shaft hole 21 of the first intermediate block 20, and the second disc body 51 of the second center piece 50 is located on the second intermediate block 30 At one end of the second shaft hole 31, when the first disc body 41 and the second disc body 51 are pinched with two fingers, the first intermediate block 20 and the second intermediate block 30 can be passed around the first intermediate block through the bearing 60. One axis A1 rotates.

The four corner block assemblies 14 are located at the four corners of the middle assembly 11, and each corner block assembly 14 has a first corner block 70 and a second corner block 80, as shown in FIGS. 2 and 3, where:

One side of the first corner block 70 has a first arc portion 71 and an arc-shaped first stop portion 72, the first stop portion 72 is connected to the end of the first arc portion 71, and the first stop The outer diameter of the stop portion 72 is larger than the outer diameter of the first arc-shaped portion 71 and the outer diameter of the first arc groove 22 of the first intermediate block 20.

One side of the second corner block 80 has a second arc portion 81 and an arc-shaped second stop portion 82, the second stop portion 82 is connected to the end of the second arc portion 81, and the second stop The outer diameter of the stop portion 82 is larger than the outer diameter of the second arc-shaped portion 81 and the outer diameter of the second arc groove 32 of the second intermediate block 30.

When assembling with the intermediate assembly 11, as shown in Figures 3 and 6, before the first intermediate block 20 and the second intermediate block 30 are assembled together with two screws 37, the first corner block 70 The arc portion 71 and the second arc portion 81 of the second corner block 80 are respectively embedded in the first arc groove 22 of the first intermediate block 20 and the second arc groove 32 of the second intermediate block 30, and then follow the aforementioned steps After the first middle block 20 and the second middle block 30 are assembled together, the first corner block 70 and the second corner block 80 will be side by side. At this time, the first corner block 70 and the second corner block 80 can be separated Following the rotation of the first intermediate block 20 and the second intermediate block 30 around the first axis A1 (as shown in Figures 9 and 10), on the other hand, as shown in Figures 2 and 3, the first corner block 70 The first arc-shaped portion 71 and the second arc-shaped portion 81 of the second corner block 80 abut each other to form a circular pivot portion 15. The first corner block 70 and the second corner block 80 can use this pivot The connecting portion 15 forms a pivotal connection with the pivot groove 12 of the intermediate assembly 11, so that the corner block assembly 14 can rotate relative to the intermediate assembly 11 about a second axis A2 perpendicular to the first axis A1 (as shown in Figures 11 and 12) Shown). In addition, as shown in Figures 2, 3 and 6, the first stop portion 72 of the first corner block 70 and the second stop portion 82 of the second corner block 80 will also be butted to each other to form a circular shape The stop block 16, the first corner block 70 and the second corner block 80 can use this stop block 16 to interfere with the periphery of the pivot groove 12 of the intermediate assembly 11 to prevent the corner block assembly 14 from detaching.

In order to make each corner block assembly 14 have a positioning effect without arbitrarily rotating, as shown in FIG. 3, each first extension slot 23 of the first intermediate block 20 and each second extension slot 33 of the second intermediate block 30 are respectively provided A first magnetic member 17 (such as a magnet), each corner block assembly 14 further has a first cover 73 and a second cover 83, and the first cover 73 has a first plate 74 and a connecting first plate The first arm 75 and the second cover 83 of the body 74 have a second plate 84 and a second arm 85 connected to the second plate 84. The first plate 74 and the second plate 84 abut each other And located between the first corner block 70 and the second corner block 80, the first arm portion 75 and the second arm portion 85 respectively extend into the first corner block 70 and the second corner block 80, and the first arm portion 75 and A second magnetic member 18 (such as a magnet) is respectively provided in the second arm portion 85. Thereby, when the second magnetic parts 18 are adsorbed by the first magnetic parts 17, as shown in FIG. 7, the corner block assemblies 14 will remain in position and will not rotate freely relative to the intermediate assembly 11. When the external force received by the equiangular block assembly 14 overcomes the suction force between the first magnetic parts 17 and the second magnetic parts 18, the corner block assemblies 14 can rotate relative to the intermediate assembly 11, as shown in FIG. 8 As shown (shown in FIG. 8 when the equiangular block assembly 14 is rotated 90 degrees relative to the intermediate assembly 11).

It can be seen from the above that the fingertip top 10 of the present invention has a variety of different ways of playing: as shown in Figures 1 and 4, the first intermediate block 20 and the second intermediate block 30 are kept at the same angular position, so that the first corner block 70 and The second corner blocks 80 are arranged side by side, and then pinch the first disc body 41 and the second disc body 51 with two fingers, so that the middle assembly 11 and each corner block assembly 14 can rotate around the first axis A1 together; As shown in Figures 9 and 10, the second intermediate block 30 is rotated 45 degrees relative to the first intermediate block 20, so that the first corner block 70 and the second corner block 80 are staggered from each other, and then pinch the first plate with two fingers The body 41 and the second disc body 51 can also allow the middle assembly 11 and each corner block assembly 14 to rotate together around the first axis A1; then, as shown in FIGS. 11 and 12, the first middle block 20 and the second The intermediate block 30 maintains the same angular position, and then rotates each corner block assembly 14 relative to the intermediate assembly 11 by 90 degrees, and then pinches the first disc body 41 and the second disc body 51 with two fingers, so that the intermediate assembly 11 and Each corner block assembly 14 rotates together around the first axis A1.

If it is not used as a fingertip gyro, it can also be used as a two-tier magic cube, that is, you can choose to have the first middle block 20 and the four first corner blocks 70 and the second middle block 30 and four second corner blocks Relatively and continuously rotate between 80 (as shown in FIGS. 9 and 10), or allow one or more of the corner block assemblies 14 to continuously rotate relative to the middle assembly 11 (as shown in FIGS. 11 and 12).

In summary, the fingertip top 10 of the present invention can not only be used as a fingertip spinner, but also has the function of a two-stage magic cube in its structure, which makes the gameplay more diverse and more complex, thereby achieving more interesting effect. In addition, as shown in FIG. 13, the outer surface of the intermediate component 11 and the outer surface of each corner block component 14 can be further provided with patterns 90 and 92 of different colors or patterns, so that the fingertip top 10 of the present invention has a special effect when playing. Visual effect.

10: Fingertip spinning top

11: Intermediate components

12: pivot slot

13: Center component

14: Corner block assembly

15: pivot

16: stop

17: The first magnetic piece

18: The second magnetic part

20: The first middle block

21: The first shaft hole

22: The first arc slot

23: The first extension slot

24: The first ring

25: screw hole

26: Block edge

30: second middle block

31: second shaft hole

32: second arc slot

33: second extension slot

34: The second ring

35: Gasket

36: Piercing

37: Screw

A1: First axis

40: The first center piece

41: First plate body

42: The first shaft

43: Large diameter part

44: Small diameter part

45: Shoulder

50: second center piece

51: second plate body

52: second shaft

53: Rod hole

60: Bearing

61: inner ring

62: Outer Ring

63: Ball

70: The first corner block

71: The first arc

72: first stop

73: The first cover

74: The first board

75: first arm

80: second corner block

81: The second arc

82: second stop

83: second cover

84: second board

85: second arm

A2: second axis

90, 92: pattern

Fig. 1 is a perspective view of the fingertip spinning top of the present invention. Figure 2 is a partial three-dimensional exploded view of the fingertip top of the present invention. Fig. 3 is another partial three-dimensional exploded view of the fingertip top of the present invention. Figure 4 is a top view of the fingertip top of the present invention. Figure 5 is a cross-sectional view of Figure 4 along line 5-5. Figure 6 is a cross-sectional view of Figure 4 along line 6-6. FIG. 7 is a side view of the fingertip top of the present invention, which mainly shows that the first magnetic member and the second magnetic member are attracted to each other. Fig. 8 is similar to Fig. 7 and mainly shows that the first magnetic member and the second magnetic member are staggered. 9 is another perspective view of the fingertip top of the present invention, in which the first middle block and the second middle block rotate relatively. Fig. 10 is a top view of Fig. 9. FIG. 11 is another perspective view of the fingertip top of the present invention, which mainly shows that the four corner block components rotate 90 degrees relative to the middle component. Fig. 12 is a top view of Fig. 11. Fig. 13 is another perspective view of the fingertip top of the present invention, which mainly shows that the outer surface of the middle component and the outer surface of each corner block component are provided with different patterns.

10: Fingertip spinning top

14: Corner block assembly

30: second middle block

31: second shaft hole

51: second plate body

70: The first corner block

80: second corner block

A1: First axis

Claims (5)

A fingertip spinning top, comprising: an intermediate component with a first intermediate block and a second intermediate block, and the first intermediate block and the second intermediate block are connected to each other and can rotate relative to each other around a first axis ; And the center of the first intermediate block has a first shaft hole penetrating two opposite sides, the first intermediate block has a blocking edge, the blocking edge extends radially from the hole wall of the first shaft hole; the The center of the second middle block has a second shaft hole penetrating two opposite sides, and the first shaft hole and the second shaft hole are coaxially communicated; and the outer periphery of the first middle block has a plurality of first arc grooves , And the first arc grooves are arranged annularly at equal intervals relative to the first shaft hole; and the outer periphery of the second middle block has a plurality of second arc grooves, and the second arc grooves are opposite to the second shaft The holes are arranged in an equally spaced ring shape, wherein the first arc grooves and the second arc grooves are abutted with each other one to one to form a pivot groove; a central component has a first central piece and a second arc groove. Two center pieces and a bearing; and the first center piece has a first disc body and a first shaft, the first disc body is connected to one end of the first shaft and located on the first shaft of the first intermediate block One end of the hole, and the first shaft of the first center piece has a large-diameter portion connecting the first disc body and a small-diameter portion connecting the large-diameter portion, and the large-diameter portion and the small-diameter portion are A shoulder is formed at the junction; and the second center piece has a second disc body and a second shaft, the second disc body is connected to one end of the second shaft and located on the second shaft of the second intermediate block One end of the hole; wherein the second shaft is connected to the first shaft of the first center piece, and the bearing is provided in the first shaft hole of the first intermediate block and is Supported by the first shaft of the core piece and the second shaft of the second central piece, wherein the bearing has an inner ring, an outer ring and a plurality of balls arranged between the inner ring and the outer ring, The inner ring of the bearing is sleeved on the small diameter portion of the first shaft of the first center piece and abuts between the shoulder of the first center piece and the end surface of the second shaft of the second center piece , And allow the outer ring of the bearing to abut against the stop edge of the first intermediate block, thereby allowing the first intermediate block and the second intermediate block to rotate around the first axial direction together; and a plurality of corner block assemblies, Each has a first corner block and a second corner block, the first corner block and the second corner block are arranged side by side; and the first corner block has a first arc-shaped portion, and the first corner block The arc-shaped portion is provided in the first arc groove of the first intermediate block, so that the first corner block can rotate with the first intermediate block around the first axis; and the second corner block has a first Two arc-shaped parts, the second arc-shaped part of the second corner block is set in the second arc groove of the second middle block, so that the second corner block can follow the second middle block around the first axis Wherein, the first arc-shaped portion of the first corner block of any one of the corner block components and the second arc-shaped portion of the second corner block are butted to each other to form a pivot joint; wherein, each The pivotal portion of the corner block assembly is pivotally disposed in the pivotal groove of the intermediate assembly, so that each corner block assembly can rotate relative to the intermediate assembly around a second axial direction perpendicular to the first axis While rotating. The fingertip top according to claim 1, wherein the outer periphery of the first intermediate block has a plurality of first extension grooves, and each of the first extension grooves extends from a first arc groove toward a distance away from the second intermediate block Direction extends out; wherein, the outer periphery of the second middle block There are a plurality of second extension grooves, and each of the second extension grooves extends from a second arc groove in a direction away from the first intermediate block; wherein, any one of the first extension grooves and any one of the The second extension grooves are opposite to each other one-to-one, and any one of the first extension grooves and any of the second extension grooves are respectively provided with a first magnetic member, and any one of the first corner blocks A second magnetic piece is provided in each of the second corner blocks; wherein, when any one of the second magnetic pieces is attracted by any of the first magnetic pieces, the corner pieces are kept in position and no longer With respect to the intermediate component, it can rotate freely. The fingertip spinner of claim 2, wherein each of the corner block components further has a plurality of first cover plates and a plurality of second cover plates; and each of the first cover plates has a first plate body and a connection The first arm portion of the first plate body, and each of the second cover plates has a second plate body and a second arm portion connected to the second plate body; wherein, the first plate body and the second plate The bodies abut against each other and are arranged between two adjacent first and second corner blocks, so that the first arm portion and the second arm portion respectively extend into a first corner block and a second corner block Inside, and the first arm portion and the second arm portion are respectively provided with the second magnetic member. The fingertip top according to any one of claims 1 to 3, wherein the first intermediate block has a first ring portion, and the first ring portion faces from the first intermediate block to a side surface of the second intermediate block Along the axial direction of the first shaft hole, it integrally extends toward the second intermediate block, the first ring portion has a screw hole, the second intermediate block has a second ring portion, the second ring portion from The hole wall of the second shaft hole integrally extends radially, and the second ring portion of the second intermediate block is rotatably sleeved on the first intermediate block. Ring portion; the intermediate component has a washer and a screw, the washer abuts against the first ring portion of the first intermediate block and the second ring portion of the second intermediate block, and the gasket has a through hole , The screw passes through the perforation of the washer and is screwed into the screw hole of the first ring portion of the first intermediate block. The fingertip top according to any one of claims 1 to 3, wherein each of the first corner blocks has a first stop portion provided on the first arc portion, and each of the second corner blocks has a design At the second stop portion of the second arc-shaped portion, the first stop portion and the second stop portion are butted to each other to form a stopper. The outer diameter of the stopper is larger than that of the pivot groove of the intermediate component The outer diameter makes the stopper interfere with the notch of the pivot groove.

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