TWM572836U - Double-row omni-directional wheel with damping effect - Google Patents

Abstract

A double row omnidirectional wheel having a shock absorbing effect, comprising a hub, a ring cover, a partition, a first damper, a second damper, a first roller set and a second roller set. The inner peripheral surfaces of the first and second damper devices respectively abut against the outer peripheral surface of the hub and the ring cover, and the outer sides of the first and second damper devices respectively abut against the retaining edge of the hub and the retaining edge of the ring cover The inner side surfaces of the first and second damper devices respectively abut against the two side faces of the partition plate. The inner circumferential surfaces of the first roller group respectively abut against the outer circumferential surface of the first damper device. The inner circumferential surfaces of the second roller group respectively abut against the outer circumferential surface of the second damper device. Thereby, the creation can absorb the vibration force generated by the first and second roller sets through the first and second damper devices, thereby achieving the shock absorbing effect, improving the stability of the carrier when moving and the comfort of riding. .

Description

Double row omnidirectional wheel with shock absorption effect

The present invention relates to an omnidirectional wheel, and more particularly to a double row omnidirectional wheel having a shock absorbing effect for damping the vibration force generated when traveling on the ground.

The wheels of a typical vehicle are simply axially moved and can only move and rotate in a straight line and cannot move laterally in any direction. The advent of the omnidirectional wheel, in addition to providing linear movement and rotation of the carrier, can also provide lateral movement of the vehicle in any direction. The omni-directional wheel carrier has the advantage of flexible moving steering, which can move in multiple directions, and can travel anywhere without any obstacles even in a small space. Therefore, vehicles such as robots and wheelchairs are ideal for assembling omnidirectional wheels.

However, when the conventional omnidirectional wheel travels on an uneven road surface or a high or low drop road section or a debris on a road surface, vibration is easily generated, and the stability of the vehicle movement and the comfort of riding are reduced.

The main purpose of the present invention is to provide a double-row omnidirectional wheel with a shock absorbing effect, which absorbs the vibration force generated by the plurality of first roller sets and the plurality of second roller sets through the first damper device and the second damper device, respectively. The shock absorbing effect is achieved, and the vibration force is further transmitted to the carrier through the hub and the axle, thereby improving the stability of the carrier and the comfort of riding.

In order to achieve the foregoing objectives, the present invention provides a double row omnidirectional wheel having a shock absorbing effect, including a hub, a ring cover, a partition plate, a first damper device, a second damper device, and a plurality of first A roller set and a plurality of second roller sets.

The hub includes a small diameter portion, a large diameter portion and a retaining edge, and a shaft hole is defined. The large diameter portion of the hub is disposed at one end of the small diameter portion of the hub, and the retaining edge of the hub is disposed on the outer peripheral surface of the large diameter portion of the hub. A shaft hole of the hub penetrates a small diameter portion of the hub and a large diameter portion of the hub, and is disposed in a side of the small diameter portion of the hub.

The ring cover surrounds an outer peripheral surface of the other end of the small diameter portion of the hub, and the inner side surface of the ring cover and the inner side surface of the large diameter portion of the hub enclose a receiving groove, and the outer peripheral surface of the side away from the receiving groove is provided There is a rim.

The partition is disposed around the receiving groove, and a first side of the partition and the outer peripheral surface of the large diameter portion of the hub and the retaining edge of the hub enclose a first annular groove, and a second side of the partition and the ring cover The outer peripheral surface and the retaining edge of the ring cover together define a second annular groove.

The first damper device is disposed around the first annular groove, and the inner circumferential surface of the first damper device abuts against the outer circumferential surface of the large diameter portion of the hub, and the outer side surface of the first damper device abuts against the rim of the hub The inner side of the first damper abuts against the first side of the partition.

The second damper device is disposed around the second annular groove, the inner peripheral surface of the second damper device abuts against the outer circumferential surface of the ring cover, and the outer side surface of the second damper device abuts against the rim of the ring cover On the side, the inner side of the second damper abuts against the second side of the partition.

Each of the first roller sets includes a first wheel base and a first roller. The first wheel bases are disposed along an outer circumferential surface of the first damper device, and the inner circumferential surfaces of the first wheel bases respectively abut The outer peripheral surface of the first damper device is rotatably disposed on the first wheel bases.

Each of the second roller sets includes a second wheel base and a second roller. The second wheel bases are disposed along an outer circumferential surface of the second damper device, and the inner circumferential surfaces of the second wheel bases respectively abut The outer peripheral surface of the second damper device is rotatably disposed on the second wheel bases.

Preferably, the first side of the partition has a plurality of first positioning blocks, each of the first positioning blocks is located between the adjacent two first wheel seats, and the bottom surface thereof abuts against the outer peripheral surface of the first damper device; The second side of the partition has a plurality of second positioning blocks, and each of the second positioning blocks is located between the adjacent two second wheel bases, and the bottom surface thereof abuts against the outer circumferential surface of the second damping device.

Preferably, the first damper device has an annular shape, and inner circumferential surfaces of the inner circumferential surfaces of the first wheel seats are curved and have a curvature equal to the curvature of the outer circumferential surface of the first damper device, so that the first damper device The outer peripheral surface of the first damper is in close contact with the inner peripheral surface of the first wheel base, and the inner peripheral surface of the first damper is in close contact with the outer peripheral surface of the large diameter portion of the hub; wherein the second damper is annular The inner circumferential surfaces of the second wheel seats are curved surfaces and have a curvature equal to the curvature of the outer circumferential surface of the second damper device, so that the outer circumferential surface of the second damper device is in close contact with the inner circumferential surface of the second wheel pedestal. The inner peripheral surface of the second damper device is in close contact with the outer peripheral surface of the ring cover.

Preferably, each of the first wheel bases includes an upper portion and a lower portion, each of the first rollers is rotatably disposed at an upper portion of each of the first wheel seats, and a recess is formed in each of the lower ends of the first wheel seats. The notch of the two first wheel seats constitutes a first groove, and the first positioning blocks are respectively located in the first grooves; wherein each of the second wheel bases comprises an upper portion and a lower portion, and each of the second rollers Rotatingly disposed at an upper portion of each of the second wheel bases, a recess is formed in each of the lower ends of the second wheel bases, and a notch of the adjacent two second wheel bases forms a second recess, the second The positioning blocks are respectively located in the second grooves.

Preferably, the length of the outer peripheral surface of each of the first positioning blocks is greater than the length of the inner peripheral surface of each of the first positioning blocks, and the width of each of the first positioning blocks is from the outer peripheral surface of each of the first positioning blocks to the first positioning. The direction of the inner peripheral surface of the block is gradually reduced, so that each of the first positioning blocks has a triangular frustum shape, and the two sides of each of the first positioning blocks are closely attached to the two sides of each of the first grooves, and each of the first positioning blocks The two side edges and the corners of the outer peripheral surfaces of the first positioning blocks abut against the corners between the two side surfaces and the two top surfaces of the first recesses, and the outer peripheral surfaces of the first positioning blocks are away from the first recesses. The top surface of each of the second positioning blocks has a length greater than the length of the inner circumferential surface of each of the two positioning blocks, and the width of each of the two positioning blocks is from the outer circumferential surface of each of the second positioning blocks to the second positioning. The direction of the inner peripheral surface of the block is gradually smaller, so that each of the second positioning blocks has a triangular frustum shape, and the two sides of each of the second positioning blocks are closely attached to the two sides of each of the second grooves, and each of the second positioning blocks The two sides and the corners of the outer peripheral surfaces of the second positioning blocks abut against the two sides and the two top surfaces of the second grooves Corner, the outer peripheral surface of each of the second block is positioned away from the two surfaces of the second recess.

Preferably, the top end of each of the first wheel bases has two first support portions protruding upwardly, and the two first support portions are coextensive with the top surface of the upper portions of the first wheel bases. Each of the first support portions defines a perforation, and each of the first roller sets further includes two first bearings and a first rotating shaft, and the two first bearings are respectively disposed in the through holes of the two first supporting portions, the first rotating shaft Transversely spanning the first receiving space, the two ends of the first rotating shaft are respectively inserted into the through holes of the two first supporting portions and respectively passed through the shaft holes of the two first bearings; wherein the tops of the upper portions of the second wheel seats are respectively Two second supporting portions are protruded upwardly from the two ends of the second supporting portion, and the second supporting portions and the top surface of the upper portion of each of the second wheel bases respectively define a second receiving space, and each of the second supporting portions defines a through hole, and each of the second supporting portions The roller set further includes two second bearings and a second rotating shaft, wherein the two second bearings are respectively disposed in the through holes of the two second supporting portions, the second rotating shaft laterally spans the second receiving space, and the two ends of the second rotating shaft are respectively inserted a perforation provided in the second support portion and respectively disposed on the second Shaft hole of the bearing.

Preferably, the first damper device and the second damper device are both solid structures.

Preferably, the positions of the first positioning blocks are respectively shifted from the positions of the second positioning blocks, and the first roller groups and the second roller groups are staggered with each other.

The effect of the present invention is that the first damper device and the second damper device respectively absorb the vibration force generated by the plurality of first roller groups and the plurality of second roller groups to achieve the shock absorbing effect, and the vibration force is further prevented from passing through the hub. It is transmitted to the vehicle with the axle to improve the smoothness of the vehicle and the comfort of the ride.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Please refer to FIG. 1 to FIG. 9. FIG. 1 is a perspective view of a double-row omnidirectional wheel 1 with a shock absorbing effect, and FIG. 2 is a wheel hub 10 of a double-row omnidirectional wheel 1 with a shock absorbing effect. An exploded view of the plate 30, the first damper device 40, and the first roller set 60, and FIG. 3 is a side view of the hub 10 of the double row omnidirectional wheel 1 having a shock absorbing effect, and FIG. 4 is a The front view of the double-row omnidirectional wheel 1 with damping effect, FIG. 5 is a perspective view of another angle of the double-row omnidirectional wheel 1 with damping effect, and FIG. 6 is a double with shock absorption effect An exploded view of the ring cover 20, the partition 30, the second damper device 50, and the second roller set 70 of the omnidirectional wheel 1, and FIG. 7 is a ring cover of the double row omnidirectional wheel 1 having the shock absorbing effect. 20 is a side view of the double-row omnidirectional wheel 1 having a shock absorbing effect, and FIG. 9 is a cross-sectional view of the double-row omnidirectional wheel 1 having a shock absorbing effect. The present invention provides a double-row omnidirectional wheel 1 having a shock absorbing effect, including a hub 10, a ring cover 20, a partition 30, a first damper 40, a second damper 50, and a plurality of first The roller set 60 and the plurality of second roller sets 70.

As shown in FIGS. 1 to 4 and 9, the hub 10 includes a small diameter portion 11, a large diameter portion 12, and a retaining edge 13 and defines a shaft hole 14. The large diameter portion 12 of the hub 10 is provided at one end of the small diameter portion 11 of the hub 10. The retaining edge 13 of the hub 10 is provided on the side of the outer peripheral surface of the large diameter portion 12 of the hub 10 away from the small diameter portion 11 of the hub 10. The shaft hole 14 of the hub 10 extends through the small diameter portion 11 of the hub 10 and the large diameter portion 12 of the hub 10, and is provided for an axle (not shown) to be inserted therein.

As shown in FIGS. 5 to 9, the ring cover 20 surrounds the outer peripheral surface of the other end of the small diameter portion 11 of the hub 10; the inner side surface of the ring cover 20 is surrounded by the inner side surface of the large diameter portion 12 of the hub 10. The groove 80 and its outer peripheral surface away from the side of the receiving groove 80 are provided with a retaining edge 21.

As shown in FIG. 2, FIG. 6, and FIG. 9, the partition plate 30 is circumferentially disposed in the cavity 80; a first side surface 31 of the partition plate 30 and an outer peripheral surface of the large diameter portion 12 of the hub 10 and a retaining edge 13 of the hub 10. A first annular groove 81 is commonly enclosed; the second side 32 of the partition 30 and the outer peripheral surface of the ring cover 20 and the retaining edge 21 of the ring cover 20 together define a second annular groove 82.

As shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 9 , the first damper device 40 is disposed around the first annular groove 81 , and the inner circumferential surface of the first damper device 40 abuts against the large diameter portion of the hub 10 . The outer peripheral surface of the first damper device 40 abuts against the inner side surface of the rim 13 of the hub 10, and the inner side surface of the first damper device 40 abuts against the first side surface 31 of the partition plate 30.

As shown in FIG. 5, FIG. 6, FIG. 8, and FIG. 9, the second damper device 50 is disposed around the second annular groove 82, and the inner circumferential surface of the second damper device 50 abuts against the outer circumferential surface of the ring cover 20. The outer side surface of the second damper device 50 abuts against the inner side surface of the rim 21 of the ring cover 20, and the inner side surface of the second damper device 50 abuts against the second side surface 32 of the partition plate 30.

As shown in FIG. 1 , FIG. 2 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 9 , each of the first roller sets 60 includes a first wheel base 61 and a first roller 62 . The first wheel seats 61 are circumferentially disposed along the outer circumferential surface of the first damper device 40, and the inner circumferential surfaces of the first wheel seats 61 abut against the outer circumferential surface of the first damper device 40, respectively. The first rollers 62 are rotatably disposed on the first wheel seats 61, respectively.

As shown in FIG. 1 , FIG. 2 , FIG. 5 , FIG. 6 , FIG. 8 and FIG. 9 , each of the second roller sets 70 includes a second wheel base 71 and a second roller 72 . The second wheel bases 71 are circumferentially disposed along the outer circumferential surface of the second damper device 50, and the inner circumferential surfaces of the second wheel bases 71 abut against the outer circumferential surface of the second damper device 50, respectively. The second rollers 72 are rotatably disposed on the second wheel bases 71, respectively.

As shown in FIG. 10, the double-row omnidirectional wheel 1 of the present invention having a shock absorbing effect can be used as the front wheel of a wheelchair 2. However, without limitation, the double-row omnidirectional wheel 1 of the present invention having a shock absorbing effect can be installed on any carrier (for example, a robot), which will be described first.

When the present invention has a shock-absorbing double-row omnidirectional wheel 1 (such as the wheelchair 2 shown in FIG. 10), it travels on an uneven road surface or a high or low drop road section or a debris on a road surface. The first roller set 60 and the second roller set 70 can cause severe vibration. At this time, the first damper device 40 and the second damper device 50 respectively absorb the vibration forces of the first roller group 60 and the second roller group 70 to achieve the shock absorbing effect, and further prevent the vibration force from further passing through the hub. 10 and the axle are transmitted to the vehicle to improve the smoothness of the vehicle and the comfort of the ride.

Furthermore, the partition 30 can completely separate the first roller set 60 from the second roller set 70, so as to prevent the first roller set 60 and the second roller set 70 from swaying during the traveling process. And interfere with each other.

In the preferred embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the first side surface 31 of the partition plate 30 has a plurality of first positioning blocks 33 , and each of the first positioning blocks 33 is located adjacent to the first two. The wheel base 61 is between and the bottom surface thereof abuts against the outer peripheral surface of the first damper device 40. As shown in FIG. 5, FIG. 6, FIG. 8 and FIG. 9, the second side surface 32 of the partition plate 30 has a plurality of second positioning blocks 34, and each of the second positioning blocks 34 is located in the adjacent two second wheel bases 71. And the bottom surface thereof abuts against the outer peripheral surface of the second damper device 50.

Thereby, the first positioning blocks 33 can further separate the first roller groups 60 to prevent the first roller groups 60 from swaying and interfering with each other during the traveling. The second positioning blocks 34 can further separate the second roller sets 70 to prevent the second roller sets 70 from swaying and interfering with each other during travel.

In addition, the partial vibration force of the first roller group 60 can be transmitted to the first positioning blocks 33 by the first wheel bases 61, and the first damping device 40 absorbs the first positioning blocks 33. The vibration force of the second roller set 70 can be transmitted to the second positioning block 34 by the second wheel base 71, and the second damping device 50 absorbs the second positioning block The vibration force transmitted by 34; to achieve the shock absorbing effect, to prevent the vibration force from being transmitted to the vehicle through the hub 10 and the axle, thereby improving the stability of the vehicle and the comfort of the ride.

It is worth mentioning that, as shown in FIG. 2, FIG. 6 and FIG. 9, the positions of the first positioning blocks 33 are respectively shifted from the positions of the second positioning blocks 34, and the first roller groups 60 and the like. The second roller set 70 is staggered with each other. Accordingly, the first roller set 60 and the second roller set 70 can be quickly arranged in a staggered manner through the first positioning block 33 and the second positioning blocks 34 when assembled, and can be provided together. Multi-angle lateral displacement.

Further, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the first damper device 40 has an annular shape, and the inner circumferential surfaces of the first wheel seats 61 are all curved and have a curvature equal to that of the first damper device 40 . The curvature of the outer peripheral surface is such that the outer peripheral surface of the first damper device 40 is in close contact with the inner peripheral surface of the first wheel mount 61, and the inner peripheral surface of the first damper device 40 is in close contact with the large diameter portion of the hub 10. The outer circumference of 12. As shown in FIG. 5, FIG. 6, and FIG. 8, the second damper device 50 has an annular shape, and the inner circumferential surfaces of the second wheel bases 71 are curved and have a curvature equal to the outer circumferential surface of the second damper device 50. The curvature is such that the outer circumferential surface of the second damper device 50 is in close contact with the inner circumferential surface of the second wheel base 71, and the inner circumferential surface of the second damper device 50 is in close contact with the outer circumferential surface of the ring cover 20. In other words, the inner circumferential surface of the first wheel base 61 and the outer circumferential surface of the first damper device 40 are in surface contact, and the inner circumferential surface of the second wheel base 71 and the outer circumferential surface of the second damper device 50 For face contact. Therefore, the first damper device 40 can absorb the vibration force of the first roller group 60 more uniformly, and the second damper device 50 can more uniformly absorb the vibration force of the second roller group 70, and the shock absorbing buffer The effect is more significant.

It is worth mentioning that the first damper device 40 and the second damper device 50 are both solid structures. Therefore, the first damper device 40 can more uniformly absorb the vibration force of the first roller group 60, and the second damper device 50 can more uniformly absorb the vibration force of the second roller group 70, The shock buffer effect is more significant.

More specifically, as shown in FIGS. 1, 2, and 4, each of the first wheel bases 61 includes an upper portion 611 and a lower portion 612. Each of the first rollers 62 is rotatably disposed at an upper portion 611 of each of the first wheel bases 61. A notch 6121 is defined in each of the two ends of the lower portion 612 of the first wheel base 61. The notch 6121 of the adjacent two first wheel seats 61 defines a first recess 6122. The first positioning blocks 33 are respectively located in the first grooves 6122. Preferably, the length of the outer peripheral surface of each of the first positioning blocks 33 is greater than the length of the inner peripheral surface of each of the first positioning blocks 33, and the width of each of the first positioning blocks 33 is from the outer circumference of each of the first positioning blocks 33. The direction of the inner circumferential surface of each of the first positioning blocks 33 gradually decreases, so that each of the first positioning blocks 33 has a triangular frustum shape. The two sides of each of the first positioning blocks 33 are in close contact with the two side faces 6122A, 6122B of the first grooves 6122. The two sides of each of the first positioning blocks 33 and the corners of the outer peripheral surfaces of the first positioning blocks 33 abut against the two side faces 6122A, 6122B and the two top faces 6122C, 6122D of the first groove 6122. corner. The outer peripheral surface of each of the first positioning blocks 33 is away from the two top surfaces 6122 and 6122D of the first recesses 6122.

As shown in FIGS. 5, 6, and 8, each of the second wheel bases 71 includes an upper portion 711 and a lower portion 712. Each of the second rollers 72 is rotatably disposed at an upper portion 711 of each of the second wheel bases 71. A notch 7121 is defined in each of the two ends of the lower portion 712 of the second wheel base 71. The notch 7121 of the adjacent two second wheel bases 71 defines a second recess 7122. The second positioning blocks 34 are respectively located in the second grooves 7122. Preferably, the length of the outer circumferential surface of each of the second positioning blocks 34 is greater than the length of the inner circumferential surface of each of the second positioning blocks 34, and the width of each of the second positioning blocks 34 is from the outer circumference of each of the second positioning blocks 34. The direction of the inner peripheral surface of each of the second positioning blocks 34 gradually decreases, so that each of the second positioning blocks 34 has a triangular frustum shape. The two sides of each of the second positioning blocks 34 are in close contact with the two side surfaces 7122A, 7122B of the second recesses 7122. The two sides of each of the second positioning blocks 34 and the corners of the outer peripheral surfaces of the second positioning blocks 34 abut against the two side surfaces 7122A, 7122B and the two top surfaces 7122C, 7122D of the second recesses 7122. corner. The outer peripheral surface of each of the second positioning blocks 34 is away from the two top surfaces 7122C, 7122D of the second recesses 7122.

As shown in FIG. 2, the first support portions 6111 and 6112 are protruded upward from the top end of the upper portion 611 of each of the first wheel bases 61. The first support portions 6111 and 6112 and the top surface of the upper portion 611 of each of the first wheel mounts 61 together define a first receiving space 6113. Each of the first supporting portions 6111, 6112 defines a through hole 6111A. Each of the first roller sets 60 further includes two first bearings 63, 64 and a first rotating shaft 65. The two first bearings 63 and 64 are respectively disposed in the through holes 6111A of the two first supporting portions 6111 and 6112. The first rotating shaft 65 extends transversely across the first receiving space 6113. The two ends of the first rotating shaft 65 are respectively inserted into the through holes 6111A of the two first supporting portions 6111 and 6112 and respectively pass through the axes of the two first bearings 63 and 64. hole.

Two second support portions 7111 and 7112 are protruded upward from the top end of the upper portion 711 of each of the second wheel bases 71. The second supporting portions 7111 and 7112 and the top surface of the upper portion 711 of each of the second wheel bases 71 together define a second receiving space 7113. Each of the second supporting portions 7111 and 7112 defines a through hole 7111A. Each of the second roller sets 70 further includes two second bearings 73, 74 and a second rotating shaft 75. The two second bearings 73 and 74 are respectively disposed in the through holes 7111A of the two second supporting portions 7111 and 7112. The second rotating shaft 75 extends transversely across the second receiving space 7113. The two ends of the second rotating shaft 75 are respectively inserted into the through holes 7111A of the two second supporting portions 7111 and 7112 and penetrate the shaft holes of the two second bearings 73 and 74. .

The above description is only a preferred embodiment for explaining the present creation, and is not intended to impose any form of restriction on the creation, so that any modification or change related to the creation under the same creative spirit is provided. , should still be included in the scope of this creative intent.

1‧‧‧All directions

10‧‧·wheels

11‧‧‧Little Trails Department

12‧‧‧The Great Trails Department

13‧‧‧ 挡缘

14‧‧‧Axis hole

20‧‧‧ ring cover

21‧‧‧ 缘缘

30‧‧‧Baffle

31‧‧‧ first side

32‧‧‧ second side

33‧‧‧First positioning block

34‧‧‧Second positioning block

40‧‧‧First damping device

50‧‧‧Second damper

60‧‧‧First roller set

61‧‧‧First wheel seat

611‧‧‧ upper

6111, 6112‧‧‧ first support

6111A‧‧‧Perforation

6113‧‧‧First accommodation space

612‧‧‧ lower

6121‧‧‧ gap

6122‧‧‧First groove

6122A, 6122B‧‧‧ side

6122C, 6122D‧‧‧ top surface

62‧‧‧First wheel

63, 64‧‧‧ first bearing

65‧‧‧First shaft

70‧‧‧Second roller set

71‧‧‧ second wheel seat

711‧‧‧ upper

7111, 7112‧‧‧second support

7111A‧‧‧Perforation

7113‧‧‧Second accommodation space

712‧‧‧ lower

7121‧‧‧ gap

7122‧‧‧second groove

7122A, 7122B‧‧‧ side

7122C, 7122D‧‧‧ top surface

72‧‧‧Second wheel

73, 74‧‧‧ second bearing

75‧‧‧second shaft

80‧‧‧ 容容

81‧‧‧ first ring groove

82‧‧‧ second ring groove

2‧‧‧ Wheelchair

Fig. 1 is a perspective view of a double-row omnidirectional wheel with a shock absorbing effect. 2 is an exploded view of the hub, the partition, the first damper device and the first roller set of the double-row omnidirectional wheel with the shock absorbing effect of the present invention. Figure 3 is a side view of the hub of the double row omnidirectional wheel with damping effect of the present invention. Figure 4 is a front elevational view of the double row omnidirectional wheel with damping effect of the present invention. Fig. 5 is a perspective view showing another angle of the double-row omnidirectional wheel with a shock absorbing effect. FIG. 6 is an exploded view of the ring cover, the partition plate, the second damper device and the second roller set of the double-row omnidirectional wheel with the shock absorbing effect. Fig. 7 is a side view of the ring cover of the double row omnidirectional wheel with damping effect of the present invention. Figure 8 is a rear view of the double row omnidirectional wheel with damping effect of the present invention. Figure 9 is a cross-sectional view of the double row omnidirectional wheel with damping effect of the present invention. Fig. 10 is a schematic view showing the double-row omnidirectional wheel with shock absorbing effect as the front wheel of the wheelchair.

Claims (8)

A double-row omnidirectional wheel having a shock absorbing effect, comprising: a hub including a small diameter portion, a large diameter portion and a retaining edge, and a shaft hole is defined, and a large diameter portion of the hub is disposed on the diameter of the hub One end of the hub, the retaining edge of the hub is disposed on a side of the outer peripheral surface of the large diameter portion of the hub away from the small diameter portion of the hub, and the shaft hole of the hub penetrates the small diameter portion of the hub and the large diameter portion of the hub And a ring cover is disposed therein; a ring cover surrounds an outer peripheral surface of the other end of the small diameter portion of the hub, and an inner side surface of the ring cover is surrounded by an inner side surface of the large diameter portion of the hub a receiving groove, and a peripheral edge of a side away from the receiving groove; a partition is disposed around the receiving groove, a first side of the partition and an outer peripheral surface of the large diameter portion of the hub And a retaining edge of the hub and a first annular groove, a second side of the partition and the outer peripheral surface of the ring cover and the retaining edge of the ring cover a second annular groove; a vibration device disposed around the first annular groove, the inner circumferential surface of the first damping device abutting the wheel The outer peripheral surface of the large diameter portion of the hub, the outer side surface of the first damper device abuts against the inner side surface of the retaining edge of the hub, the inner side surface of the first damper device abuts against the first side surface of the partition plate; a second damper device is disposed around the second annular groove, and an inner circumferential surface of the second damper device abuts against an outer circumferential surface of the ring cover, and an outer side surface of the second damper device abuts against the An inner side of the retaining edge of the ring cover, the inner side of the second damper device abuts against the second side of the partition; the plurality of first roller sets each including a first wheel base and a first roller, The first wheel base is disposed along the outer circumferential surface of the first damper device, and the inner circumferential surfaces of the first wheel seats respectively abut against the outer circumferential surface of the first damper device, and the first roller wheels are respectively rotatable Positioned on the first wheel bases; and a plurality of second roller sets each including a second wheel base and a second wheel, the second wheel bases are disposed along the outer circumference of the second damper The inner circumferential surfaces of the second wheel seats respectively abut against the outer circumferential surface of the second damper device, and the second rollers are respectively rotatable To those provided in the second wheel base. The double-row omnidirectional wheel with a shock absorbing effect according to claim 1, wherein the first side of the partition has a plurality of first positioning blocks, and each of the first positioning blocks is located adjacent to the second a wheel seat, and a bottom surface thereof abuts against an outer circumferential surface of the first damper device; wherein the second side surface of the partition plate has a plurality of second positioning blocks, each of the second positioning blocks being respectively located adjacent to the second Between the second wheel seats, and the bottom surface thereof abuts against the outer peripheral surface of the second damper device. The double-row omnidirectional wheel having a shock absorbing effect according to claim 2, wherein the first damper device has an annular shape, and inner circumferential surfaces of the first wheel seats are curved surfaces And the curvature is equal to the curvature of the outer circumferential surface of the first damper device, so that the outer circumferential surface of the first damper device is in close contact with the inner circumferential surface of the first wheel pedestal, and the inner circumferential surface of the first damper device is tight An outer peripheral surface of the large diameter portion of the hub; wherein the second damper has an annular shape, and the inner circumferential surfaces of the second wheel seats are curved and have a curvature equal to an outer circumferential surface of the second damper The curvature of the second damper device is in close contact with the inner circumferential surface of the second wheel housing, and the inner circumferential surface of the second damper device is in close contact with the outer circumferential surface of the ring cover. The double-row omnidirectional wheel having a shock absorbing effect according to the second or third aspect of the invention, wherein each of the first wheel bases includes an upper portion and a lower portion, each of the first rollers being rotatably disposed in each of the two An upper portion of the first wheel base is recessed at each of the two ends of the lower portion of the first wheel base, and the notches of the adjacent two first wheel bases form a first recess, wherein the first positioning blocks are respectively located And the second recess includes an upper portion and a lower portion, each of the second rollers being rotatably disposed at an upper portion of each of the second wheel seats, and a lower portion of each of the second wheel seats A notch is recessed in each of the two ends, and a notch of the two adjacent second wheel bases constitutes a second groove, and the second positioning blocks are respectively located in the second grooves. The double-row omnidirectional wheel having a shock absorbing effect according to the fourth aspect of the invention, wherein the length of the outer peripheral surface of each of the first positioning blocks is greater than the length of the inner peripheral surface of each of the first positioning blocks, The width of the first positioning block gradually decreases from the outer circumferential surface of each of the first positioning blocks to the inner circumferential surface of each of the first positioning blocks, so that each of the first positioning blocks has a triangular frustum shape, and each of the first positioning blocks Two sides of a first positioning block abut against the two sides of each of the first grooves, and the two sides of each of the first positioning blocks and the corners of the outer peripheral surfaces of the first positioning blocks abut against the first concaves a second side of the first positioning block is away from the two top surfaces of the first recesses; wherein the length of the outer peripheral surface of each of the second positioning blocks is greater than each of the two sides of the slot The length of the inner circumferential surface of the two positioning blocks, the width of each of the two positioning blocks gradually decreases from the outer circumferential surface of each of the second positioning blocks to the inner circumferential surface of each of the second positioning blocks, thereby The two positioning blocks are in the shape of a triangular frustum, and the two sides of each of the second positioning blocks are closely attached to the two sides of each of the second grooves. The two sides of each of the second positioning blocks and the corners of the outer peripheral surfaces of the second positioning blocks abut against the corners between the two sides of the second groove and the two top surfaces, and each of the second positioning blocks The outer peripheral surface is away from the two top surfaces of each of the second grooves. The double-row omnidirectional wheel with a shock absorbing effect according to the fourth aspect of the invention, wherein the top end of each of the upper portions of the first wheel base protrudes upwardly from the first support portion, and the two first supports And a first receiving space is defined by the top surface of the upper portion of each of the first wheel bases, each of the first supporting portions defines a through hole, and each of the first roller groups further includes two first bearings and a first rotating shaft. The two first bearings are respectively disposed in the through holes of the two first supporting portions, the first rotating shaft transversely spans the first receiving space, and the two ends of the first rotating shaft are respectively inserted into the through holes of the two first supporting portions and The second bearing portion is respectively disposed on the two ends of the upper surface of each of the second wheel bases, and the second support portion and each of the second wheel bases The top surface of the upper portion of the upper portion of the second housing is provided with a second receiving space, and each of the second roller units further includes two second bearings and a second rotating shaft. In the through hole of the two second supporting portions, the second rotating shaft laterally spans the second receiving space The two ends of the second rotating shaft are respectively inserted into the through holes of the two second supporting portions and respectively passed through the shaft holes of the two second bearings. The double-row omnidirectional wheel having a shock absorbing effect according to claim 3, wherein the first damper device and the second damper device have a solid structure. The double-row omnidirectional wheel having a shock absorbing effect according to the second aspect of the invention, wherein the positions of the first positioning blocks are respectively shifted from the positions of the second positioning blocks, and the first roller groups are The second roller sets are staggered with each other.