Wear-resistant universal wheel

Abstract

The utility model relates to the technical field of universal wheels, and discloses a wear-resistant universal wheel, which solves the problems that a rotating shaft and a wheel shaft of the existing universal wheel are easy to bend in the using process, so that the rotating shaft and the wheel shaft are greatly worn in the rotating process, and the service life of the rotating shaft and the wheel shaft is influenced. A first supporting disc is fixedly installed at the bottom of the connecting disc, a connecting sleeve is fixedly installed at the bottom of the first supporting disc, a plurality of connecting holes are annularly formed in the surface of the connecting disc at equal intervals, a rotating shaft is arranged in the connecting sleeve, a second supporting disc is fixedly installed at the bottom of the rotating shaft, and a transverse plate is fixedly installed at the bottom of the second supporting disc. Side plates are fixedly mounted on the two sides of the bottom of the transverse plate, a rolling wheel is arranged in the middle of the lower side of the transverse plate, and an anti-bending assembly is arranged between the interior of the connecting sleeve and the two side plates; the rotating shaft and the wheel shaft of the universal wheel are not prone to bending in the using process, large abrasion generated when the rotating shaft and the wheel shaft rotate is avoided, and the service life of the universal wheel is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal wheels, in particular to a wear-resistant universal wheel. Background Art

[0002] A universal wheel is a so-called movable caster, and its structure allows 360-degree horizontal rotation. Casters are a general term, including movable casters and fixed casters. Fixed casters do not have a rotating structure and cannot rotate horizontally but only vertically. These two types of casters are generally used in combination. For example, a trolley has two fixed wheels at the front and two movable universal wheels at the back near the push handles. The rotating shaft and axle of existing universal wheels are prone to bending during use, which leads to greater wear on the rotating shaft and axle when they rotate, affecting their service life. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a wear-resistant universal wheel, which effectively solves the problem that the rotating shaft and the wheel axle of the existing universal wheel are easily bent during use, which leads to greater wear on the rotating shaft and the wheel axle when rotating, thus affecting their service life.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant universal wheel, comprising a connecting plate, a first supporting plate is fixedly installed on the bottom of the connecting plate, a connecting sleeve is fixedly installed on the bottom of the first supporting plate, a plurality of connecting holes are equidistantly provided in an annular shape on the surface of the connecting plate, a rotating shaft is provided inside the connecting sleeve, a second supporting plate is fixedly installed on the bottom of the rotating shaft, a cross plate is fixedly installed on the bottom of the second supporting plate, side plates are fixedly installed on both sides of the bottom of the cross plate, a roller is provided in the middle of the lower side of the cross plate, and an anti-bending component is provided inside the connecting sleeve and between the two side plates.

[0005] Preferably, the anti-bending assembly includes two connecting plates, a positioning head, a positioning groove, a first fixing ring, a second fixing ring, a first annular slide groove and a second annular slide groove, the two connecting plates are fixedly installed on the side of the two side plates away from each other, the first fixing ring is fixedly installed on the upper part of the rotating shaft surface, the second fixing ring is fixedly installed on the lower part of the rotating shaft surface, the first annular slide groove is opened on the upper side of the inner wall of the connecting sleeve, the second annular slide groove is opened on the lower side of the inner wall of the connecting sleeve, the two connecting plates are fixedly installed with axle seats on the sides close to each other, a wheel axle is rotatably installed between the two axle seats, a first shaft sleeve is fixedly installed on the middle part of the wheel axle surface, the surface of the first shaft sleeve is fixedly connected to the roller, the positioning head is fixedly installed on the top of the rotating shaft, the positioning groove is opened at the top of the connecting sleeve, and the positioning head is installed inside the positioning groove.

[0006] Preferably, second sleeves are rotatably mounted on both sides of the wheel axle surface, and a plurality of support rods are fixedly mounted on the circumferential surface of the second sleeves, and ends of the support rods away from the rollers are fixedly connected to the sides of the two side plates close to each other.

[0007] Preferably, a first connecting ring is fixedly installed on the circumferential surface of the first fixed ring, a first sliding ring is fixedly installed on the circumferential surface of the first connecting ring, the first sliding ring is installed inside the first annular groove, and a plurality of first balls are movably installed at equal distances in an annular shape on the inner wall of the first annular groove, a second connecting ring is fixedly installed on the circumferential surface of the second fixed ring, a second sliding ring is fixedly installed on the circumferential surface of the second connecting ring, the second sliding ring is installed inside the second annular groove, and a plurality of second balls are movably installed on the inner wall of the second annular groove.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the operator inserts the bolt into the interior of the connecting hole, thereby fixing the connecting plate to the bottom of the trolley, thereby completing the installation of the universal wheel; when turning in use, the rotating shaft drives the positioning head to rotate along the interior of the positioning groove, and while the rotating shaft rotates, the first connecting ring and the second connecting ring are driven to rotate through the first fixing ring and the second fixing ring, and when the first connecting ring and the second connecting ring rotate, the first sliding ring and the second sliding ring are driven to slide along the interior of the first annular groove and the second annular groove, and when the first sliding ring and the second sliding ring slide along the interior of the first annular groove and the second annular groove, they slide against the first ball and the second ball respectively, thereby improving the smoothness of rotation and reducing wear, and by rotating and positioning the two ends of the rotating shaft, the bending of the rotating shaft is avoided;

[0009] When the roller rolls, it drives the first sleeve and the wheel axle to rotate along the two shaft seats and the two second sleeves. The support of the two shaft seats and the two second sleeves can prevent the wheel axle from being completely bent; the rotating shaft and the wheel axle of the universal wheel are not easy to bend during use, avoiding large wear on the rotating shaft and the wheel axle when they rotate, thereby increasing their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0011] In the attached picture:

[0012] Figure 1 This is a schematic diagram of the wear-resistant universal wheel structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the connecting sleeve of the utility model;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of a local enlarged structure;

[0015] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0016] In the figure: 1. connecting plate; 2. first supporting plate; 3. connecting hole; 4. connecting sleeve; 5. rotating shaft; 6. second supporting plate; 7. cross plate; 8. side plate; 9. connecting plate; 10. shaft seat; 11. wheel axle; 12. first bushing; 13. roller; 14. second bushing; 15. supporting rod; 16. positioning head; 17. positioning groove; 18. first annular groove; 19. first fixing ring; 20. first connecting ring; 21. first sliding ring; 22. first ball; 24. second fixing ring; 25. second connecting ring; 26. second sliding ring; 27. second annular groove; 28. second ball. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] Depend on Figures 1 to 4 The utility model includes a connecting plate 1, a first supporting plate 2 is fixedly installed on the bottom of the connecting plate 1, a connecting sleeve 4 is fixedly installed on the bottom of the first supporting plate 2, a plurality of connecting holes 3 are equidistantly provided on the surface of the connecting plate 1 in an annular shape, a rotating shaft 5 is provided inside the connecting sleeve 4, a second supporting plate 6 is fixedly installed on the bottom of the rotating shaft 5, a cross plate 7 is fixedly installed on the bottom of the second supporting plate 6, side plates 8 are fixedly installed on both sides of the bottom of the cross plate 7, a roller 13 is provided in the middle of the lower side of the cross plate 7, and an anti-bending component is provided inside the connecting sleeve 4 and between the two side plates 8.

[0019] The operator inserts the bolt into the connecting hole 3 to fix the connecting plate 1 to the bottom of the trolley, thereby completing the installation of the universal wheel; during use, the anti-bending component can reduce wear and tear, thereby increasing the service life of the universal wheel.

[0020] The anti-bending component includes two connecting plates 9, a positioning head 16, a positioning groove 17, a first fixing ring 19, a second fixing ring 24, a first annular slide groove 18 and a second annular slide groove 27. The two connecting plates 9 are fixedly installed on the side of the two side plates 8 away from each other, the first fixing ring 19 is fixedly installed on the upper part of the surface of the rotating shaft 5, the second fixing ring 24 is fixedly installed on the lower part of the surface of the rotating shaft 5, the first annular slide groove 18 is opened on the upper side of the inner wall of the connecting sleeve 4, the second annular slide groove 27 is opened on the lower side of the inner wall of the connecting sleeve 4, and the two connecting plates 9 are fixedly installed with shaft seats 10 on the sides close to each other. The wheel axle 11 is rotatably installed between the two shaft seats 10, and the first shaft sleeve 12 is fixedly installed in the middle of the surface of the wheel axle 11. The surface of the first shaft sleeve 12 is fixedly connected to the roller 13, the positioning head 16 is fixedly installed on the top of the rotating shaft 5, and the positioning groove 17 is opened at the top inside the connecting sleeve 4 , the positioning head 16 is installed inside the positioning groove 17; the second sleeves 14 are rotatably installed on both sides of the surface of the wheel axle 11, and the circumferential surface of the second sleeves 14 is fixedly installed with a plurality of support rods 15, and the ends of the support rods 15 away from the roller 13 are fixedly connected to the sides of the two side plates 8 close to each other; the circumferential surface of the first fixed ring 19 is fixedly installed with a first connecting ring 20, and the circumferential surface of the first connecting ring 20 is fixedly installed with a first sliding ring 21, the first sliding ring 21 is installed inside the first annular slide groove 18, and the inner wall of the first annular slide groove 18 is movably installed with a plurality of first balls 22 at equal distances in an annular manner, the circumferential surface of the second fixed ring 24 is fixedly installed with a second connecting ring 25, and the circumferential surface of the second connecting ring 25 is fixedly installed with a second sliding ring 26, the second sliding ring 26 is installed inside the second annular slide groove 27, and the inner wall of the second annular slide groove 27 is movably installed with a plurality of second balls 28.

[0021] When turning in use, the rotating shaft 5 drives the positioning head 16 to rotate along the inside of the positioning groove 17. When the rotating shaft 5 rotates, the first connecting ring 20 and the second connecting ring 25 are driven to rotate through the first fixing ring 19 and the second fixing ring 24. When the first connecting ring 20 and the second connecting ring 25 rotate, they drive the first sliding ring 21 and the second sliding ring 26 to slide along the inside of the first annular groove 18 and the second annular groove 27. When the first sliding ring 21 and the second sliding ring 26 slide along the inside of the first annular groove 18 and the second annular groove 27, they are respectively attached to the first ball 22 and the second The balls 28 slide, which improves the smoothness of rotation and reduces wear. The two ends of the rotating shaft 5 are rotated and positioned to prevent the rotating shaft 5 from bending. When the roller 13 rolls, it drives the first sleeve 12 and the wheel axle 11 to rotate along the inside of the two shaft seats 10 and the two second sleeves 14. The support of the two shaft seats 10 and the two second sleeves 14 can prevent the wheel axle 11 from bending completely. This makes it difficult for the rotating shaft 5 and the wheel axle 11 of the universal wheel to bend during use, avoiding large wear on the rotating shaft 5 and the wheel axle 11 when they rotate, thereby increasing their service life.

Claims

1. A wear-resistant universal wheel, comprising a connecting plate (1), characterized in that: The bottom of the connecting plate (1) is fixedly mounted with a first supporting plate (2), the bottom of the first supporting plate (2) is fixedly mounted with a connecting sleeve (4), a plurality of connecting holes (3) are provided in an annular shape at equal intervals on the surface of the connecting plate (1), a rotating shaft (5) is provided inside the connecting sleeve (4), a second supporting plate (6) is fixedly mounted on the bottom of the rotating shaft (5), a transverse plate (7) is fixedly mounted on the bottom of the second supporting plate (6), side plates (8) are fixedly mounted on both sides of the bottom of the transverse plate (7), a roller (13) is provided in the middle of the lower side of the transverse plate (7), and an anti-bending component is provided inside the connecting sleeve (4) and between the two side plates (8).

2. The wear-resistant universal wheel according to claim 1, characterized in that: The anti-bending assembly comprises two connecting plates (9), a positioning head (16), a positioning groove (17), a first fixing ring (19), a second fixing ring (24), a first annular sliding groove (18) and a second annular sliding groove (27). The two connecting plates (9) are fixedly mounted on the sides of the two side plates (8) away from each other, the first fixing ring (19) is fixedly mounted on the upper part of the surface of the rotating shaft (5), the second fixing ring (24) is fixedly mounted on the lower part of the surface of the rotating shaft (5), the first annular sliding groove (18) is opened on the upper side of the inner wall of the connecting sleeve (4), and the second fixing ring (24) is fixedly mounted on the lower part of the surface of the rotating shaft (5). A shaped slide groove (27) is provided on the lower side of the inner wall of the connecting sleeve (4); a shaft seat (10) is fixedly installed on the side of the two connecting plates (9) close to each other; a wheel shaft (11) is rotatably installed between the two shaft seats (10); a first shaft sleeve (12) is fixedly installed in the middle of the surface of the wheel shaft (11); the surface of the first shaft sleeve (12) is fixedly connected to the roller (13); a positioning head (16) is fixedly installed on the top of the rotating shaft (5); a positioning groove (17) is provided on the top of the interior of the connecting sleeve (4); and the positioning head (16) is installed inside the positioning groove (17).

3. The wear-resistant universal wheel according to claim 2, characterized in that: Second sleeves (14) are rotatably mounted on both sides of the surface of the wheel shaft (11), and a plurality of support rods (15) are fixedly mounted on the circumferential surface of the second sleeves (14), wherein the ends of the support rods (15) away from the roller (13) are fixedly connected to the sides of the two side plates (8) that are close to each other.

4. The wear-resistant universal wheel according to claim 2, characterized in that: A first connecting ring (20) is fixedly mounted on the circumferential surface of the first fixed ring (19), a first sliding ring (21) is fixedly mounted on the circumferential surface of the first connecting ring (20), the first sliding ring (21) is mounted inside the first annular slide groove (18), a plurality of first balls (22) are movably mounted annularly and equidistantly on the inner wall of the first annular slide groove (18), a second connecting ring (25) is fixedly mounted on the circumferential surface of the second fixed ring (24), a second sliding ring (26) is fixedly mounted on the circumferential surface of the second connecting ring (25), the second sliding ring (26) is mounted inside the second annular slide groove (27), a plurality of second balls (28) are movably mounted on the inner wall of the second annular slide groove (27).

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