A universal wheel for shock-absorbing logistics equipment

By designing a combined structure of limit rods and springs on the universal wheel of the logistics equipment, the shock absorption effect on the logistics equipment is achieved, the bumpy problem of logistics equipment when moving on uneven ground is solved, and the service life of the universal wheel and the transportation stability of the logistics equipment are improved.

CN115805772BActive Publication Date: 2025-05-02MAMBA DRIVE TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202211601327.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-13
Publication Date
2025-05-02
Estimated Expiration
2042-12-13

AI Technical Summary

Technical Problem

When existing logistics equipment moves on uneven ground with universal wheels, it will cause bumps in logistics equipment, causing damage to logistics materials, and the universal wheels are easily lost due to instantaneous rise and fall, affecting their service life.

Method used

A universal wheel for shock-absorbing logistics equipment is designed, and four sets of first limit rods, four sets of second limit rods and four sets of third limit rods are combined with spring and sliding hole structures. The logistics equipment is initially and further shock-absorbing through the compression and release of the spring, and the design of the screw and anti-slip ring plate is adjusted to ensure the stability of the logistics equipment during movement.

Benefits of technology

It effectively avoids the loss of the universal wheel when moving on uneven ground, improves the service life of the universal wheel, and ensures the stability of the logistics equipment for material transportation, and prevents the damage of logistics materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a shock-absorbing universal wheel for logistics equipment, which relates to the field of logistics transportation technology, including a roller arranged on the inner side of a bracket plate, and also including four groups of first springs, both side surfaces of the bracket plate are fixedly connected with fixed side plates, the upper surfaces of the two groups of the fixed side plates are fixedly connected with two groups of first limit rods, the upper surface of the bracket plate is fixedly connected with two groups of second limit rods, the outer sides of the two groups of the second limit rods are sleeved with second springs, and a second inclined plate is fixedly connected between the same ends of the two groups of the fixed side plates; the present invention can avoid the loss of the roller when moving on an uneven ground, has a good buffering and shock-absorbing function, improves the service life of the universal wheel, and ensures the stability of the logistics equipment in transporting materials, and can prevent the flexible universal wheel from causing the logistics equipment to move anywhere after reaching the destination, plays a stable braking role, and ensures the stable loading and unloading of logistics materials.
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Description

Technical Field

[0001] The invention relates to the technical field of logistics and transportation, and in particular to a universal wheel for shock-absorbing logistics equipment. Background Art

[0002] A universal wheel refers to a bracket installed on a caster wheel that can rotate 360 ​​degrees horizontally under dynamic or static load. When the universal wheels currently used come into contact with the ground, the logistics equipment above the universal wheels will inevitably experience bumps, and the stability cannot be well guaranteed. At the same time, the wear of the universal wheels will increase, reducing the service life of the universal wheels.

[0003] After searching, the Chinese patent number CN212446959U discloses a universal wheel with good shock-absorbing performance, which can protect the loaded goods and reduce economic losses, thus solving the problem of poor shock-absorbing effect in the prior art. However, the universal wheels used in the existing logistics equipment will cause bumps in the logistics equipment when moving on uneven ground, thereby causing damage to the logistics materials, and the universal wheels are also prone to wear and tear due to instantaneous rise and fall, which will affect the service life of the universal wheels in the long run. Therefore, we propose a shock-absorbing universal wheel for logistics equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a shock-absorbing universal wheel for logistics equipment to solve the problem that the universal wheel for existing logistics equipment proposed in the above background technology will cause bumps in the logistics equipment when moving on uneven ground, thereby causing damage to logistics materials, and the universal wheel is also prone to wear and tear due to instantaneous rise and fall, which will affect the service life of the universal wheel in the long run.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A universal wheel for shock-absorbing logistics equipment includes a roller arranged on the inner side of a bracket plate, and also includes four groups of first springs. Both side surfaces of the bracket plate are fixedly connected with fixed side plates, and the upper surfaces of the two groups of fixed side plates are fixedly connected with two groups of first limit rods, and the upper surface of the bracket plate is fixedly connected with two groups of second limit rods, and the outer sides of the two groups of second limit rods are sleeved with second springs, and a second inclined plate is fixedly connected between the same ends of the two groups of fixed side plates, and the upper surface of the second inclined plate is fixedly connected with two groups of third limit rods, and the outer sides of the two groups of third limit rods are sleeved with third springs.

[0007] As a further solution of the present invention: an upper horizontal plate is arranged above the bracket plate, a first inclined plate is fixedly connected to one side of the upper horizontal plate, six groups of sliding holes are penetrated through the upper surface of the upper horizontal plate, four groups of the first springs are respectively sleeved on the outside of four groups of first limiting rods, the outside tops of the four groups of the first limiting rods are all threadedly connected with first nuts, and the four groups of first nuts are all located on the upper side of the upper horizontal plate, and the four groups of the first limiting rods are respectively slidably connected to the upper horizontal plate through sliding holes.

[0008] As a further solution of the present invention: the outer top of the two groups of the second limit rods are threadedly connected with the second nuts, the two groups of the second nuts are located on the upper side of the upper horizontal plate, and the two groups of the second limit rods are slidably connected to the upper horizontal plate through sliding holes.

[0009] As a further solution of the present invention: sliding openings are opened on the upper surface of the first inclined plate near both sides, the outer tops of the two groups of third limiting rods are threadedly connected with third nuts, and the two groups of third limiting rods are respectively slidably connected to the first inclined plate through the sliding openings, and the first inclined plate and the second inclined plate are arranged parallel to each other.

[0010] As a further solution of the present invention: an equipment base plate is arranged above the upper horizontal plate, a vertical shaft rod is penetrated on the equipment base plate, a second rotating ring is fixedly sleeved on the outer bottom of the vertical shaft rod, a second inner groove disk is fixedly installed on the upper surface of the upper horizontal plate near the middle position of one side, the second rotating ring is located inside the second inner groove disk, a rotating shaft is penetrated on the roller, bearing rings are fixedly connected to both side surfaces of the bracket plate, and two sets of bearing rings are rotatably connected to the rotating shaft.

[0011] As a further solution of the present invention: the two groups of fixed side plates are fixedly connected with a support rod on the side away from the second inclined plate, a threaded hole is penetrated through the middle position of the upper surface of the support rod, and an adjusting screw is penetrated through the middle position of the upper surface of the support rod, a first rotating ring is fixedly sleeved on the outer bottom of the adjusting screw, an anti-slip ring plate is arranged below the fixed side plate, a first inner groove disk is fixedly connected to the upper surface of the anti-slip ring plate near the adjusting screw, two groups of limiting sleeves are fixedly connected to the side of the upper surface of the anti-slip ring plate away from the first inner groove disk, and the lower surface of the first inclined plate is fixedly connected to limiting vertical rods near both sides.

[0012] As a further solution of the present invention: the adjusting screw is threadedly connected to the support rod through a threaded hole, the support rod is arc-shaped, the first rotating ring is located inside the first inner groove disk, and the lower ends of the two groups of limiting vertical rods are respectively located inside the two groups of limiting sleeves.

[0013] As a further solution of the present invention: two groups of limit ring plates are fixedly connected to the upper surface of the upper horizontal plate, and an inner ring plate is fixedly connected to the lower surface of the equipment bottom plate, and the inner ring plate is located between the two groups of limit ring plates, and a plurality of through holes are equidistantly penetrated through the outer side surface of the limit ring plate, and a plurality of clamping holes are equidistantly penetrated through the outer side surface of the inner ring plate, and a clamping bolt is provided through the outer side surface of the limit ring plate, and the clamping bolt passes through the through holes on the limit ring plate and cooperates with the clamping holes to clamp with the inner ring plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Four groups of first limit rods cooperate with four groups of sliding holes and four groups of first nuts to make the upper cross plate and two groups of fixed side plates move relatively, and then two groups of second limit rods cooperate with two groups of sliding holes and two groups of second nuts to make the upper cross plate and the bracket plate move relatively, and the logistics equipment is initially damped by the compression and release of four groups of first springs and two groups of second springs, and then the first inclined plate and the second inclined plate are relatively moved by two groups of third limit rods cooperate with two groups of sliding holes and two groups of third nuts, and the logistics equipment is further damped by the compression and release of four groups of third springs, which can avoid the loss of the roller when moving on uneven ground, has good buffering and shock absorbing function, improves the service life of the universal wheel, and ensures the stability of the logistics equipment for material transportation.

[0016] 2. Turn the adjusting screw through the threaded hole on the support rod, and then drive the anti-slip ring plate downward through the first rotating ring and the first inner groove plate in cooperation with two sets of limit vertical rods and two sets of limit sleeves until the anti-slip ring plate is in close contact with the ground, and then pass the clamping bolt through the through hole on the limit ring plate and cooperate with the clamping hole to clamp with the inner ring plate, so that the relative position of the upper horizontal plate and the bottom plate of the equipment is fixed, which can prevent the flexible universal wheel from causing the logistics equipment to move anywhere after reaching the destination, play a stable braking role, and ensure the stable loading and unloading of logistics materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the connection structure between the vertical shaft rod and the bracket plate in the present invention.

[0020] Figure 3 It is a schematic diagram of the connection structure of the upper horizontal plate in the present invention.

[0021] Figure 4 It is a schematic diagram of the connection structure of the anti-slip ring plate in the present invention.

[0022] Figure 5 It is a schematic diagram of the connection structure between the limiting ring plate and the inner ring plate in the present invention.

[0023] Figure 6 It is a front view schematic diagram of the present invention.

[0024] In the figure: 1, bracket plate; 2, roller; 3, upper horizontal plate; 4, first inclined plate; 5, fixed side plate; 6, second inclined plate; 7, first limiting rod; 8, first nut; 9, first spring; 10, second limiting rod; 11, second nut; 12, second spring; 13, third limiting rod; 14, third nut; 15, third spring; 16, sliding hole; 17, sliding mouth; 18, support rod; 19, threaded hole; 20, adjusting screw; 21, first rotating ring; 22, anti-slip ring plate; 23, first inner groove disk; 24, limiting vertical rod; 25, limiting sleeve; 26, equipment bottom plate; 27, vertical shaft rod; 28, second rotating ring; 29, second inner groove disk; 30, limiting ring plate; 31, inner ring plate; 32, through hole; 33, clamping hole; 34, clamping bolt; 35, rotating shaft; 36, bearing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Embodiment 1:

[0028] This embodiment refers to Figure 1 , 3As shown, the present invention provides a technical solution: a universal wheel for shock-absorbing logistics equipment, comprising a roller 2 arranged on the inner side of a bracket plate 1, and also comprising four groups of first springs 9, both side surfaces of the bracket plate 1 are fixedly connected with fixed side plates 5, the upper surfaces of the two groups of fixed side plates 5 are fixedly connected with two groups of first limiting rods 7, the upper surface of the bracket plate 1 is fixedly connected with two groups of second limiting rods 10, the outer sides of the two groups of second limiting rods 10 are sleeved with second springs 12, a second inclined plate 6 is fixedly connected between the same ends of the two groups of fixed side plates 5, two groups of third limiting rods 13 are fixedly connected on the upper surface of the second inclined plate 6, the outer sides of the two groups of third limiting rods 13 are sleeved with third springs 15, an upper cross plate 3 is arranged above the bracket plate 1, one side of the upper cross plate 3 is fixedly connected with the first inclined plate 4, and the upper surface of the upper cross plate 3 is penetrated with six groups of sliding Hole 16, four groups of first springs 9 are respectively sleeved on the outer sides of four groups of first limiting rods 7, the outer tops of the four groups of first limiting rods 7 are all threadedly connected with the first nuts 8, and the four groups of first nuts 8 are all located on the upper side of the upper cross plate 3, the four groups of first limiting rods 7 are respectively slidably connected with the upper cross plate 3 through the sliding holes 16, the outer tops of the two groups of second limiting rods 10 are threadedly connected with the second nuts 11, and the two groups of second nuts 11 are both located on the upper side of the upper cross plate 3, the two groups of second limiting rods 10 are respectively slidably connected with the upper cross plate 3 through the sliding holes 16, the upper surface of the first inclined plate 4 is penetrated by sliding openings 17 near both sides, the outer tops of the two groups of third limiting rods 13 are all threadedly connected with the third nuts 14, and the two groups of third limiting rods 13 are respectively slidably connected with the first inclined plate 4 through the sliding openings 17, and the first inclined plate 4 and the second inclined plate 6 are arranged parallel to each other;

[0029] Specifically, four groups of first limit rods 7 cooperate with four groups of sliding holes 16 and four groups of first nuts 8 to enable the upper cross plate 3 and the two groups of fixed side plates 5 to move relatively, and then two groups of second limit rods 10 cooperate with two groups of sliding holes 16 and two groups of second nuts 11 to enable the upper cross plate 3 and the bracket plate 1 to move relatively, and the logistics equipment is initially damped by the compression and release of four groups of first springs 9 and two groups of second springs 12, and then the first inclined plate 4 and the second inclined plate 6 are relatively moved by two groups of third limit rods 13 cooperate with two groups of sliding holes 17 and two groups of third nuts 14, and the logistics equipment is further damped by the compression and release of four groups of third springs 15, which can avoid the loss of the roller 2 when moving on an uneven ground, has a good buffering and shock absorbing function, improves the service life of the universal wheel, and ensures the stability of the logistics equipment in material transportation.

[0030] Embodiment 2:

[0031] This embodiment refers to Figure 2 , 45, the present invention provides a technical solution: a universal wheel for shock-absorbing logistics equipment, an equipment bottom plate 26 is arranged above the upper horizontal plate 3, a vertical shaft rod 27 is penetrated on the equipment bottom plate 26, a second rotating ring 28 is fixedly sleeved on the outer bottom of the vertical shaft rod 27, a second inner groove plate 29 is fixedly installed on the upper surface of the upper horizontal plate 3 near the middle position of one side, the second rotating ring 28 is located inside the second inner groove plate 29, a rotating shaft 35 is penetrated on the roller 2, and both sides of the bracket plate 1 are fixed A bearing ring 36 is connected, and both sets of bearing rings 36 are rotatably connected to the rotating shaft 35. The two sets of fixed side plates 5 are fixedly connected to the side away from the second inclined plate 6 with a support rod 18. A threaded hole 19 is provided through the middle position of the upper surface of the support rod 18, and an adjusting screw 20 is provided through the middle position of the upper surface of the support rod 18. The outer bottom of the adjusting screw 20 is fixedly sleeved with a first rotating ring 21. An anti-slip ring plate 22 is provided below the fixed side plate 5, and the upper surface of the anti-slip ring plate 22 is close to the adjusting screw. A first inner groove disc 23 is fixedly connected at 20, two sets of limit sleeves 25 are fixedly connected to the side of the upper surface of the anti-slip ring plate 22 away from the first inner groove disc 23, and the lower surface of the first inclined plate 4 is fixedly connected to the limit vertical rods 24 near both sides. The adjusting screw 20 is threadedly connected to the support rod 18 through the threaded hole 19. The shape of the support rod 18 is set in an arc shape. The first rotating ring 21 is located inside the first inner groove disc 23, and the lower ends of the two sets of limit vertical rods 24 are respectively located inside the two sets of limit sleeves 25. Two groups of limit ring plates 30 are fixedly connected to the upper surface of the plate 3, and an inner ring plate 31 is fixedly connected to the lower surface of the equipment bottom plate 26, and the inner ring plate 31 is located between the two groups of limit ring plates 30. A plurality of through holes 32 are evenly spaced through the outer side surface of the limit ring plate 30, and a plurality of clamping holes 33 are evenly spaced through the outer side surface of the inner ring plate 31. A clamping bolt 34 is provided through the outer side surface of the limit ring plate 30, and the clamping bolt 34 passes through the through holes 32 on the limit ring plate 30 and matches the clamping holes 33 to clamp with the inner ring plate 31;

[0032] Specifically, the adjusting screw 20 is rotated through the threaded hole 19 on the support rod 18, and then the anti-slip ring plate 22 is driven downward by the first rotating ring 21 and the first inner groove plate 23 in cooperation with the two sets of limiting vertical rods 24 and the two sets of limiting sleeves 25 until the anti-slip ring plate 22 is in close contact with the ground, and then the clamping bolt 34 is passed through the through hole 32 on the limiting ring plate 30 and is engaged with the inner ring plate 31 in cooperation with the clamping hole 33, so that the relative position of the upper horizontal plate 3 and the equipment bottom plate 26 is fixed, which can prevent the flexible universal wheels from causing the logistics equipment to move anywhere after reaching the destination, play a stable braking role, and ensure the stable loading and unloading of logistics materials.

[0033] The working principle and use process of the present invention are as follows: first, when in use, the roller 2 is rolled and rotated by the rotating shaft 35 and the two groups of bearing rings 36, so that the logistics equipment on the upper side of the equipment bottom plate 26 can be moved. When the moving direction of the logistics equipment needs to be changed, the bracket plate 1 is rotated by the vertical shaft rod 27 and the second rotating ring 28 and the second inner groove plate 29 to change the moving direction of the roller 2. In the process of the movement of the roller 2, the upper cross plate 3 and the two groups of fixed side plates 5 are relatively movable through the four groups of first limiting rods 7, the four groups of sliding holes 16 and the four groups of first nuts 8. Then, the upper cross plate 3 and the bracket plate 1 are relatively movable through the two groups of second limiting rods 10, the two groups of sliding holes 16 and the two groups of second nuts 11. The logistics equipment is initially damped by the compression and release of the four groups of first springs 9 and the two groups of second springs 12. Then, the first inclined plate 4 and the second inclined plate 6 are relatively movable through the two groups of third limiting rods 13, the two groups of sliding ports 17 and the two groups of third nuts 14. The compression and release of the four groups of third springs 15 further reduce the shock of the logistics equipment, which can avoid the loss of the roller 2 when moving on the uneven ground, has a good buffering and shock absorbing function, improves the service life of the universal wheel, and ensures the stability of the logistics equipment for material transportation. When the logistics equipment reaches the destination, the adjusting screw 20 is rotated through the threaded hole 19 on the support rod 18, and then the first rotating ring 21 and the first inner groove plate 23 cooperate with the two groups of limiting vertical rods 24 and the two groups of limiting sleeves 25 to drive the anti-skid ring plate 22 to move downward until the anti-skid ring plate 22 is in close contact with the ground, and then the clamping bolt 34 is passed through the through hole 32 on the limiting ring plate 30 and is clamped with the inner ring plate 31 by the clamping hole 33, so that the relative position of the upper horizontal plate 3 and the equipment bottom plate 26 is fixed, which can prevent the flexible universal wheel from causing the logistics equipment that has reached the destination to move anywhere, play a stable braking role, ensure the stable loading and unloading of logistics materials, and complete the operation.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A universal wheel for shock-absorbing logistics equipment, comprising a roller (2) arranged on the inner side of a support plate (1), characterized in that: It also comprises four groups of first springs (9), both sides of the bracket plate (1) are fixedly connected to fixed side plates (5), the upper surfaces of the two groups of fixed side plates (5) are fixedly connected to two groups of first limit rods (7), the upper surface of the bracket plate (1) is fixedly connected to two groups of second limit rods (10), the outer sides of the two groups of second limit rods (10) are sleeved with second springs (12), the same ends of the two groups of fixed side plates (5) are fixedly connected to a second inclined plate (6), the upper surface of the second inclined plate (6) is fixedly connected to two groups of third limit rods (13), the outer sides of the two groups of third limit rods (13) are sleeved with third springs (15); An upper horizontal plate (3) is arranged above the bracket plate (1), and a first inclined plate (4) is fixedly connected to one side of the upper horizontal plate (3). Six groups of sliding holes (16) are penetrated through the upper surface of the upper horizontal plate (3). Four groups of the first springs (9) are respectively sleeved on the outer sides of four groups of first limiting rods (7). The outer tops of the four groups of the first limiting rods (7) are all threadedly connected with first nuts (8), and the four groups of first nuts (8) are all located on the upper side of the upper horizontal plate (3). The four groups of the first limiting rods (7) are respectively slidably connected to the upper horizontal plate (3) through the sliding holes (16); The outer tops of the two groups of the second limiting rods (10) are both threadedly connected with second nuts (11), the two groups of the second nuts (11) are both located on the upper side of the upper transverse plate (3), and the two groups of the second limiting rods (10) are slidably connected to the upper transverse plate (3) via sliding holes (16); The upper surface of the first inclined plate (4) is provided with sliding openings (17) near both sides, the outer tops of the two groups of third limit rods (13) are both threadedly connected with third nuts (14), and the two groups of third limit rods (13) are respectively slidably connected to the first inclined plate (4) through the sliding openings (17), and the first inclined plate (4) and the second inclined plate (6) are arranged parallel to each other; A device bottom plate (26) is arranged above the upper horizontal plate (3), a vertical shaft (27) is arranged through the device bottom plate (26), a second rotating ring (28) is fixedly sleeved on the outer bottom of the vertical shaft (27), a second inner groove disk (29) is fixedly installed near the middle position of one side of the upper surface of the upper horizontal plate (3), the second rotating ring (28) is located inside the second inner groove disk (29), a rotating shaft (35) is arranged through the roller (2), and bearing rings (36) are fixedly connected to both side surfaces of the bracket plate (1), and the two groups of bearing rings (36) are rotatably connected to the rotating shaft (35).

2. The universal wheel for shock-absorbing logistics equipment according to claim 1, characterized in that: A support rod (18) is fixedly connected to one side of the two groups of fixed side plates (5) away from the second inclined plate (6); a threaded hole (19) is provided through the middle position of the upper surface of the support rod (18); an adjusting screw (20) is provided through the middle position of the upper surface of the support rod (18); a first rotating ring (21) is fixedly sleeved on the outer bottom of the adjusting screw (20); an anti-slip ring plate (22) is provided below the fixed side plate (5); a first inner groove disk (23) is fixedly connected to the upper surface of the anti-slip ring plate (22) near the adjusting screw (20); two groups of limiting sleeves (25) are fixedly connected to the side of the upper surface of the anti-slip ring plate (22) away from the first inner groove disk (23); and limiting vertical rods (24) are fixedly connected to the lower surface of the first inclined plate (4) near both sides.

3. The universal wheel for shock-absorbing logistics equipment according to claim 2, characterized in that: The adjusting screw (20) is threadedly connected to the support rod (18) through a threaded hole (19); the support rod (18) is arc-shaped; the first rotating ring (21) is located inside the first inner groove disk (23); and the lower ends of the two groups of limiting vertical rods (24) are respectively located inside the two groups of limiting sleeves (25).

4. The universal wheel for shock-absorbing logistics equipment according to claim 1, characterized in that: Two groups of limiting ring plates (30) are fixedly connected to the upper surface of the upper horizontal plate (3), and an inner ring plate (31) is fixedly connected to the lower surface of the equipment bottom plate (26), and the inner ring plate (31) is located between the two groups of limiting ring plates (30). The outer side surface of the limiting ring plate (30) is penetrated by a plurality of groups of through holes (32) at equal distances, and the outer side surface of the inner ring plate (31) is penetrated by a plurality of groups of clamping holes (33) at equal distances. The outer side surface of the limiting ring plate (30) is penetrated by a clamping bolt (34), and the clamping bolt (34) passes through the through hole (32) on the limiting ring plate (30) and cooperates with the clamping hole (33) to be clamped with the inner ring plate (31).

Citation Information

Patent Citations

  • Universal wheel

    CN212446959U

  • Universal wheel with brake structure

    CN211617320U

  • Damping universal wheel

    CN212765480U