Double-shaft suspension universal wheel

Abstract

The utility model relates to the technical field of universal wheels, in particular to a double-shaft suspension universal wheel which comprises a supporting plate, a mounting plate and a connecting column, the connecting column is fixedly mounted at the top end of the mounting plate, a plurality of fixing holes are fixedly formed in the outer side of the top end of the mounting plate, and a double-row stable universal wheel supporting structure is arranged at the lower end of the supporting plate. And a sealing transverse rotating structure is arranged above the supporting plate. According to the double-shaft suspension universal wheel, a transverse shaft sequentially penetrates through a side plate and a supporting frame, protruding thread heads at the two ends of the transverse shaft can be screwed into nuts to be locked and fixed, the lower end of the transverse plate is fixedly connected with the supporting frame through rivets, and the supporting frame provides supporting force and balance force for the middles of the two wheel bodies in the middle. The two separated wheel bodies are laterally supported by the side plates on the two sides, so that the wheel bodies can bear long-time load-bearing work, the deformation and inclination problems are reduced, and the service life of the double-shaft suspension universal wheel is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of omnidirectional wheel technology, specifically a dual-axis suspended omnidirectional wheel. Background Technology

[0002] Casters, also known as swivel casters, are designed to rotate 360 ​​degrees horizontally. "Caser" is a general term encompassing both swivel and fixed casters. Fixed casters lack a rotating mechanism and can only rotate vertically, not horizontally. These two types of casters are typically used together. For example, a handcart typically has two fixed wheels at the front and two swivel casters near the push handle at the rear. A swivel caster is defined as a support bracket mounted on the caster wheel that allows it to rotate 360 ​​degrees horizontally under both dynamic and static loads.

[0003] For example, the authorization announcement number "CN202169845U" describes a double-row universal wheel for bags. The bottom of the pulley bracket adopts a double-row wheel structure, which has better load-bearing capacity, stable rotation, simple structure, and good working stability. Existing double-row universal wheels for bags use double rows of wheels to improve load-bearing capacity, but the bracket of the two wheels is set in the middle of the wheels. Therefore, the two wheels are actually only stressed on one side. As a result, after the universal wheel has been used under heavy load for a long time, the lower end of the two wheels will tilt to both sides, which makes the load-bearing structure of the universal wheel less stable and reduces the service life of the universal wheel. Utility Model Content

[0004] The purpose of this invention is to solve the problem of reduced service life of existing double-row universal wheels for bags and luggage, and to propose a dual-axis suspended universal wheel.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a dual-axis suspended omnidirectional wheel, including a support plate, a mounting plate and a connecting column. The connecting column is fixedly installed on the top of the mounting plate. The mounting plate is rotatably positioned above the support plate. Multiple fixing holes are fixedly opened on the outer side of the top of the mounting plate. The lower end of the support plate is provided with a double-row stable omnidirectional wheel support structure. The upper part of the support plate is provided with a sealed lateral rotation structure.

[0007] Preferably, the double-row stabilizing caster support structure includes a horizontal plate and side plates. The horizontal plate is fixedly installed at the lower end of the support plate, and the two side plates are fixedly connected to the lower end of the horizontal plate. A horizontal shaft is fixedly connected to the inner side of the two side plates. Threaded heads are fixedly connected to both ends of the horizontal shaft, and nuts are threadedly connected to the outer sides of the two threaded heads. A support frame is fixedly connected to the lower end of the horizontal plate by rivets, and the inner side of the lower end of the support frame is fixedly connected to the outer wall of the horizontal shaft.

[0008] Preferably, the inner side of the side plate is provided with a universal wheel body structure, the universal wheel body structure includes positioning grooves and wheel body, two positioning grooves are fixedly connected to the inner wall of the side plate, the inner side of the two positioning grooves is rotatably connected to a first bearing, the other end of the two first bearings is rotatably connected to a wheel body, and the outer wall of the wheel body is fixedly sleeved with an anti-wear layer.

[0009] Preferably, the interior of the wheel body is rotatably connected to the exterior of the horizontal shaft, and one side of the two wheels body is rotatably arranged relative to the side plate through a first bearing.

[0010] Preferably, the sealing transverse rotation structure includes a rotating seat and a lower sleeve. The rotating seat is fixedly connected to the top of the support plate, and a second bearing is rotatably installed above the rotating seat. The lower sleeve is fixedly connected to the top of the support plate, and an adhesive layer is fixedly connected to the top of the lower sleeve. An upper sleeve is rotatably connected above the adhesive layer.

[0011] Preferably, the other end of the upper sleeve is fixedly connected to the lower end of the mounting plate, and the second bearing is rotatably connected to the middle of the lower end of the mounting plate.

[0012] The present invention proposes a dual-axis suspended universal wheel with the following advantages: the horizontal axis passes through the side plate and the support frame in sequence, and the threaded heads at both ends of the horizontal axis can be screwed into nuts for locking and fixing. The lower end of the horizontal plate is fixedly connected to the support frame by rivets. The support frame provides support and balance force to the middle of the two wheels in the middle, and the side plate provides lateral support to the two separate wheels on both sides. Therefore, the wheels can withstand long-term heavy-duty work, reduce deformation and tilting problems, and improve the service life of the dual-axis suspended universal wheel. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A side sectional view;

[0015] Figure 3 for Figure 1 A frontal sectional view;

[0016] Figure 4 for Figure 2 Enlarged sectional view of section A in the middle;

[0017] Figure 5 for Figure 2 Enlarged sectional view of section B in the middle;

[0018] Figure 6 for Figure 3 Enlarged sectional view of section C.

[0019] In the diagram: 1. Support plate, 2. Mounting plate, 3. Connecting column, 4. Fixing hole, 5. Double-row stable universal wheel support structure, 51. Horizontal plate, 52. Side plate, 53. Support frame, 54. Horizontal shaft, 55. Nut, 56. Threaded head, 6. Universal wheel body structure, 61. Positioning groove, 62. First bearing, 63. Wheel body, 64. Anti-wear layer, 7. Sealed transverse rotation structure, 71. Rotating seat, 72. Second bearing, 73. Upper sleeve, 74. Lower sleeve, 75. Adhesive layer. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Please see Figure 1-6 In this embodiment, a dual-axis suspended universal wheel includes a support plate 1, a mounting plate 2, and a connecting column 3. The connecting column 3 is fixedly installed on the top of the mounting plate 2. The connecting column 3 is a threaded column. The universal wheel can be connected to the equipment, vehicle body, bag, etc. that need to be fixed by the connecting column 3 protruding above the mounting plate 2. The mounting plate 2 is rotatably set above the support plate 1. The mounting plate 2 can fit the vehicle body or bag that needs to be fixed. It is reinforced and fixed by screwing in a smaller screw through the fixing hole 4. Multiple fixing holes 4 are fixedly opened on the outer side of the top of the mounting plate 2. The lower end of the support plate 1 is provided with a double row of stable universal wheel support structure 5. The upper part of the support plate 1 is provided with a sealed lateral rotation structure 7.

[0022] The double-row stable universal wheel support structure 5 includes a horizontal plate 51 and side plates 52. The horizontal plate 51 is fixedly installed at the lower end of the support plate 1. The horizontal plate 51 is used to support the side plates 52 on both sides and the vertical support frame 53 in the middle. The two side plates 52 are fixedly connected to the lower end of the horizontal plate 51. The inner side of the two side plates 52 is fixedly connected to a horizontal shaft 54. The horizontal shaft 54 ​​passes through the side plates 52 and the support frame 53 in sequence. The threaded heads 56 protruding at both ends of the horizontal shaft 54 ​​can be screwed into nuts 55 for locking and fixing. The two ends of the horizontal shaft 54 ​​are fixedly connected to the threaded heads 56.

[0023] Nuts 55 are threaded to the outer sides of the two threaded heads 56. The lower end of the cross plate 51 is fixedly connected to the support frame 53 by rivets. The support frame 53 provides support and balance force to the middle of the two wheel bodies 63. The side plate 52 provides lateral support to the two separate wheel bodies 53 on both sides. Therefore, the wheel body 63 can withstand long-term heavy load work and reduce deformation and tilting problems. The lower inner side of the support frame 53 is fixedly connected to the outer wall of the cross shaft 54.

[0024] The horizontal plate 51 is fixed to the lower end of the support plate 1. The horizontal plate 51 is used to support the side plates 52 on both sides and the vertical support frame 53 in the middle. The horizontal shaft 54 ​​passes through the side plates 52 and the support frame 53 in sequence. The threaded heads 56 protruding at both ends of the horizontal shaft 54 ​​can be screwed into nuts 55 for locking and fixing. The lower end of the horizontal plate 51 is fixedly connected to the support frame 53 by rivets. The support frame 53 provides support and balance force to the middle of the two wheels 63. The side plates 52 provide lateral support to the two separate wheels 53 on both sides. Therefore, the wheels 63 can withstand long-term heavy-duty work, reduce deformation and tilting problems, and improve the service life of the dual-axis floating universal wheels.

[0025] The inner side of the side plate 52 is provided with a universal wheel structure 6. The universal wheel structure 6 includes a positioning groove 61 and a wheel body 63. The two positioning grooves 61 are fixedly connected to the inner wall of the side plate 52. The two positioning grooves 61 are rotatably connected to the inside of the two positioning grooves 61. The two first bearings 62 can guide the two vertical wheels 63 to rotate laterally along the positioning grooves 61 inside the side plate 52. In this way, the lateral first bearings 62 can provide the wheels 63 with better load-bearing capacity and stability. The other end of the two first bearings 62 is rotatably connected to the wheels 63. The outer wall of the wheels 63 is fixedly sleeved with an anti-wear layer 64. The anti-wear layer 64 is a polyethylene material wrapped around the outside of the wheels 63, which has high hardness and wear resistance. The inside of the wheels 63 is rotatably connected to the outside of the horizontal shaft 54. One side of the two wheels 63 is rotatably set relative to the side plate 52 through the first bearings 62.

[0026] The sealed transverse rotation structure 7 includes a rotating seat 71 and a lower sleeve 74. The rotating seat 71 is fixedly connected to the top of the support plate 1. The rotating seat 71 is connected to the top of the support plate 1 by welding. A second bearing 72 is rotatably installed above the rotating seat 71. The second bearing 72 allows the upper mounting plate 2 and the lower support plate 1 to rotate in any direction and at any angle. The lower sleeve 74 is fixedly connected to the top of the support plate 1. The lower sleeve 74 is fitted over the outside of the rotating seat 71 from below. Similarly, the upper sleeve 73 is fitted over the outside of the rotating seat 71 from above.

[0027] The top end of the lower sleeve 74 is fixedly connected to the bonding layer 75, which is made of wear-resistant polyethylene material. When the mounting plate 1 rotates, the bottom end of the upper sleeve 73 will rotate by contacting the bonding layer 75 and the lower sleeve 74. The two close upper sleeves 73 and lower sleeves 74 can reduce the interference of external dust and debris to the normal rotation of the inner second bearing 72. The upper sleeve 73 is rotatably connected above the bonding layer 75. The other end of the upper sleeve 73 is fixedly connected to the lower end of the mounting plate 2. The second bearing 72 is rotatably connected to the middle of the lower end of the mounting plate 2.

[0028] Working principle:

[0029] Dual-axle floating casters are used to be fixed under trolleys or luggage, etc., to support and assist in the movement and transportation of trolleys or luggage. Dual-axle floating casters are an upgraded version of ordinary casters, with better load-bearing capacity and stability. They consist of two bearings and an outer wheel, with the two bearings located at both ends of the outer wheel, providing better load-bearing capacity and stability.

[0030] The docking and installation structure of dual-axis suspended omnidirectional wheels:

[0031] The connecting post 3 is a threaded post. The universal wheel can be connected to the equipment, vehicle body, luggage, etc. that need to be fixed by using the connecting post 3 protruding above the mounting plate 2. The mounting plate 2 is rotatably set above the support plate 1. The mounting plate 2 can fit the vehicle body or luggage that needs to be fixed. The smaller screw is screwed into the fixing hole 4 for reinforcement and fixation.

[0032] Stable load-bearing support structure for dual-axis suspended omnidirectional wheels:

[0033] The horizontal plate 51 is fixed to the lower end of the support plate 1. The horizontal plate 51 is used to support the side plates 52 on both sides and the vertical support frame 53 in the middle. The horizontal shaft 54 ​​passes through the side plate 52 and the support frame 53 in sequence. The threaded heads 56 protruding at both ends of the horizontal shaft 54 ​​can be screwed into the nuts 55 for locking and fixing. The lower end of the horizontal plate 51 is fixedly connected to the support frame 53 by rivets. The support frame 53 provides support and balance force to the middle of the two wheel bodies 63 in the middle. The side plates 52 provide lateral support to the two separate wheel bodies 53 on both sides. Therefore, the wheel bodies 63 can withstand long-term heavy load work and reduce the occurrence of deformation and tilting problems.

[0034] Working structure of a dual-axis suspended omnidirectional wheel:

[0035] Two first bearings 62 can guide two vertical wheels 63 to rotate laterally along the positioning groove 61 inside the side plate 52. In this way, the lateral first bearings 62 can provide the wheels 63 with better load-bearing capacity and stability. The outer wall of the wheel 63 is fixedly sleeved with an anti-wear layer 64. The anti-wear layer 64 is a polyethylene material wrapped around the outside of the wheel 63, which has high hardness and wear resistance.

[0036] Top-sealed omnidirectional rotating structure of dual-axis suspended omnidirectional wheels:

[0037] The rotating seat 71 is welded to the top of the support plate 1. The second bearing 72 allows the upper mounting plate 2 and the lower support plate 1 to rotate in any direction and at any angle. The lower sleeve 74 is fitted on the outside of the rotating seat 71 from below, and similarly, the upper sleeve 73 is fitted on the outside of the rotating seat 71 from above. The bonding layer 75 is made of wear-resistant polyethylene material. When the mounting plate 1 rotates, the bottom end of the upper sleeve 73 will rotate by contacting the bonding layer 75 and the lower sleeve 74. The two close upper sleeves 73 and lower sleeves 74 can reduce the interference of external dust and debris on the normal rotation of the inner second bearing 72.

[0038] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A dual-axle suspension universal wheel, comprising a support plate (1), a mounting plate (2) and a connecting column (3), the connecting column (3) being fixedly installed at the top end of the mounting plate (2), characterized in that: The mounting plate (2) is rotatably mounted above the support plate (1). Multiple fixing holes (4) are fixedly opened on the outer side of the top of the mounting plate (2). The lower end of the support plate (1) is provided with a double-row stable universal wheel support structure (5). The upper part of the support plate (1) is provided with a sealed transverse rotation structure (7). The double-row stable universal wheel support structure (5) includes a horizontal plate (51) and side plates (52). The horizontal plate (51) is fixedly mounted on the lower end of the support plate (1). The two side plates (52) are fixedly connected to the lower end of the horizontal plate (51). A horizontal shaft (54) is fixedly connected to the inner side of the two side plates (52). Threaded heads (56) are fixedly connected to both ends of the horizontal shaft (54). Nuts (55) are threadedly connected to the outer side of the two threaded heads (56). A support frame (53) is fixedly connected to the lower end of the horizontal plate (51) by rivets. The inner side of the lower end of the support frame (53) is fixedly connected to the outer wall of the horizontal shaft (54).

2. The dual-axis levitation caster wheel of claim 1, wherein: The inner side of the side plate (52) is provided with a universal wheel body structure (6). The universal wheel body structure (6) includes a positioning groove (61) and a wheel body (63). The two positioning grooves (61) are fixedly connected to the inner wall of the side plate (52). The two positioning grooves (61) are rotatably connected to the inside of the two positioning grooves (61). The other end of the two first bearings (62) is rotatably connected to the wheel body (63). The outer wall of the wheel body (63) is fixedly sleeved with an anti-wear layer (64).

3. The dual-axis levitation caster wheel of claim 2, wherein: The interior of the wheel body (63) is rotatably connected to the outside of the horizontal shaft (54), and one side of the two wheels (63) is rotatably set relative to the side plate (52) through the first bearing (62).

4. The dual shaft suspension omni-wheel of claim 1, wherein: The sealed transverse rotation structure (7) includes a rotating seat (71) and a lower sleeve (74). The rotating seat (71) is fixedly connected to the top of the support plate (1). A second bearing (72) is rotatably installed above the rotating seat (71). The lower sleeve (74) is fixedly connected to the top of the support plate (1). An adhesive layer (75) is fixedly connected to the top of the lower sleeve (74). An upper sleeve (73) is rotatably connected above the adhesive layer (75).

5. The dual-axis levitation caster wheel of claim 4, wherein: The other end of the upper sleeve (73) is fixedly connected to the lower end of the mounting plate (2), and the second bearing (72) is rotatably connected to the middle of the lower end of the mounting plate (2).

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