Magnetic self-resetting caster
The magnetic self-resetting casters utilize the interaction force of magnets to achieve self-resetting of the casters, solving the problems of vehicle misalignment and uneven stacking caused by swivel wheels, and enabling rapid reset and orderly stacking of casters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI BOSHENG CASTER PROD CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-19
AI Technical Summary
Existing casters are prone to causing vehicles to deviate from their intended route during use, and are difficult to stack in an orderly manner after use.
The caster uses a magnetic self-resetting movable caster. It utilizes the principle of like poles repelling and unlike poles attracting to keep the turntable and the horizontal plate in a self-resetting state. The self-resetting function of the caster is achieved through the interaction force of the magnets.
Quickly reset the casters to their original direction after the vehicle turns to reduce vehicle deviation and ensure that the casters are stacked neatly and orderly after use, adapting to the needs of different usage scenarios.
Smart Images
Figure CN224375237U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of caster technology, and in particular to a magnetic self-resetting movable caster. Background Technology
[0002] Casters include swivel casters and fixed casters, which facilitate the movement of equipment such as trolleys. Swivel casters are generally swivel casters, which can rotate at any angle.
[0003] When using swivel casters, the direction of each caster is not exactly the same due to their ability to rotate freely. After turning the vehicle, the casters may deviate from their original route due to inconsistent travel directions. Furthermore, when storing the vehicle after use, the casters may shift randomly, making it difficult to stack them in an orderly manner. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a magnetic self-resetting movable caster.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A magnetic self-resetting movable caster includes a horizontal plate and a caster. A fixed shaft is fixedly connected to the center of the horizontal plate, and a turntable is rotatably connected to the end of the fixed shaft. Two symmetrically arranged inclined connecting plates are fixedly connected to the side of the turntable away from the horizontal plate. The caster is rotatably connected to the ends of the two connecting plates. A first negative pole is fixedly connected to one side of the turntable in a direction parallel to the connecting plates, and a second negative pole is fixedly connected to the other side of the turntable in a direction parallel to the connecting plates.
[0007] Preferably, bolt holes are provided around the perimeter of the horizontal plate, and the bolt holes are rounded rectangular structures.
[0008] Preferably, a bearing is provided at the center of the surface opposite to the turntable of the horizontal plate, and the bearing is centrally sleeved on the fixed shaft.
[0009] Preferably, a first positive electrode is fixedly installed on a horizontal plate on one side of the turntable, a second positive electrode is fixedly installed on a horizontal plate on the other side of the turntable, and a third and fourth negative electrode are fixedly installed on a horizontal plate perpendicular to the first and second positive electrodes.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention, by setting up a turntable and a horizontal plate, allows casters to rotate at any angle, unlike traditional omnidirectional wheels. However, the casters utilize the repulsive and attractive properties of magnets with first, second, first, second, third, and fourth negative poles to maintain a self-resetting tendency between the turntable and the horizontal plate. Regardless of the turntable's rotation angle, the repulsive effect of the magnets pushes the turntable, causing the first or second negative pole to move away from the third or fourth negative pole, while the attractive effect of the opposite poles causes the first or second negative pole to attract the first or second positive pole. This achieves a bidirectional self-resetting function for both the turntable and the caster. When using a vehicle, this self-resetting function helps the casters quickly return to center after turning, reducing vehicle deviation. Regarding the route setting, the self-reset function after use ensures that all casters on the vehicle are aligned and stacked neatly. In actual use, users can selectively install the polarity of each magnet according to their needs and control over the stacking direction. This allows single or multiple casters to achieve different reset effects. For example, by replacing the third and fourth negative poles with positive poles, all four sides of the horizontal plate become positive, enabling the turntable and casters to achieve four-way self-reset. Alternatively, by replacing the second positive pole with a negative pole and removing the second negative pole, all four sides of the horizontal plate become positive, and the first negative pole can only attract the first positive pole, achieving one-way self-reset. This can be repeated to achieve three-way self-reset, meeting the needs of various usage scenarios. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a magnetic self-resetting movable caster proposed in this utility model;
[0013] Figure 2 This is a schematic diagram of the horizontal plate and turntable structure of a magnetic self-resetting movable caster proposed in this utility model;
[0014] Figure 3 This is a cross-sectional view of the horizontal plate and turntable structure of a magnetic self-resetting movable caster proposed in this utility model;
[0015] Figure 4 This is a schematic diagram of the magnets repelling and attracting each other in a magnetic self-resetting movable caster proposed in this utility model.
[0016] In the diagram: 1. Horizontal plate; 2. Bolt hole; 3. Fixed shaft; 4. Bearing; 5. First positive electrode; 6. Second positive electrode; 7. Turntable; 8. First negative electrode; 9. Second negative electrode; 10. Connecting plate; 11. Caster; 12. Third negative electrode; 13. Fourth negative electrode. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Reference Figure 1-4A magnetic self-resetting movable caster includes a horizontal plate 1 and a caster 11. A fixed shaft 3 is fixedly connected to the center of the horizontal plate 1, and a turntable 7 is rotatably connected to the end of the fixed shaft 3. Two symmetrically arranged inclined connecting plates 10 are fixedly connected to the side of the turntable 7 away from the horizontal plate 1. The caster 11 is rotatably connected to the ends of the two connecting plates 10. A first negative pole 8 is fixedly connected to one side of the turntable 7 in a direction parallel to the connecting plate 10, and a second negative pole 9 is fixedly connected to the other side of the turntable 7 in a direction parallel to the connecting plate 10.The horizontal plate 1 is fixedly connected to the bottom of the vehicle by bolts. The fixed shaft 3 is fixedly connected to the horizontal plate 1. The fixed shaft 3 does not move with the rotation of the caster 11. The turntable 7 is used to install the connecting plate 10 and the caster 11. The caster 11 rotates synchronously with the turntable 7. Compared with the arbitrary angle rotation of traditional universal wheels, the caster 11 can also rotate at any angle. However, the caster 11 uses the effect of like poles repelling and unlike poles attracting of the magnets of the first positive pole 5, the second positive pole 6, the first negative pole 8, the second negative pole 9, the third negative pole 12, and the fourth negative pole 13 to ensure that the turntable 7 and the horizontal plate 1 always maintain a self-resetting tendency. Among them, the first positive pole 5, the second positive pole 6, the first negative pole 8, the second negative pole 9, the third negative pole 12, and the fourth negative pole 13 are magnets that repel like poles and attract unlike poles. The three negative poles 12 and the fourth negative pole 13 refer to the polarity between the opposite faces of each magnet. For illustrative purposes only, the attached diagram shows that the attractive and repulsive forces between the magnets are greater than five kilograms. This force effectively drives the caster 11 to rotate. Regardless of the rotation angle of the turntable 7, as long as the first negative pole 8 or the second negative pole 9 approaches the second positive pole 6 or the first positive pole 5, the attraction between opposite poles will push the turntable 7 to a position where the first negative pole 8 or the second negative pole 9 is close to the first positive pole 5 or the second positive pole 6. Ultimately, the first negative pole 8 or the second negative pole 9 will attract the first positive pole 5 or the second positive pole 6, thus achieving the connection between the turntable 7 and the caster 11. The caster 11 features a bidirectional self-resetting function. When the first negative pole 8 or the second negative pole 9 approaches the third negative pole 12 or the fourth negative pole 13, the repulsive effect of like poles of the magnets drives the turntable 7 to rotate. This causes the first negative pole 8 or the second negative pole 9 to move away from the third negative pole 12 or the fourth negative pole 13 and attract to the first positive pole 5 or the second positive pole 6. This allows the caster 11 to self-reset even when rotated 90 degrees. When using the vehicle, the self-resetting function helps the caster 11 quickly return to its original position after turning, reducing the problem of the vehicle deviating from the intended path. After use, the self-resetting function ensures that all the casters 11 are aligned and uniform, achieving neat and orderly stacking. In practical use, users can selectively install the polarity of each magnet according to their needs and control over the stacking direction, so that one or more casters 11 can achieve different directional reset effects. That is, by replacing the third negative pole 12 and the fourth negative pole 13 with positive poles, all four sides of the horizontal plate 1 are positive poles, and the turntable 7 and casters 11 can achieve four-way self-reset. Alternatively, by replacing the second positive pole 6 with a negative pole and removing the second negative pole 9, all four sides of the horizontal plate 1 are positive poles, and the first negative pole 8 can only attract the first positive pole 5 to achieve unidirectional self-reset. By analogy, three-way self-reset can also be achieved to meet the needs of various usage scenarios.
[0019] As a technical optimization of this utility model, bolt holes 2 are provided around the four sides of the horizontal plate 1. The bolt holes 2 are rounded rectangular structures. The rounded rectangular bolt holes 2 facilitate the bolt connection between the horizontal plate 1 and the bottom of the vehicle, without the need to deliberately align them with traditional circular holes. The horizontal plate 1 can also be used in cases where the bottom specifications of some vehicles are different.
[0020] As a technical optimization of this utility model, a bearing 4 is provided at the center of the opposite surface of the horizontal plate 1 and the turntable 7, and the center of the bearing 4 is sleeved on the fixed shaft 3. The bearing 4 is used for the rotation of the turntable 7, which can reduce friction and noise.
[0021] As a technical optimization of this utility model, a first positive electrode 5 is fixedly installed on a horizontal plate 1 on one side of the turntable 7, and a second positive electrode 6 is fixedly installed on a horizontal plate 1 on the other side of the turntable 7. A third negative electrode 12 and a fourth negative electrode 13 are fixedly installed on a horizontal plate 1 perpendicular to the first positive electrode 5 and the second positive electrode 6. The positions of the first positive electrode 5 and the second positive electrode 6 remain unchanged. When used in conjunction with the first negative electrode 8 and the second negative electrode 9, the first negative electrode 8 and the second negative electrode 9 can drive the turntable 7 and the caster 11 to self-reset. The third negative electrode 12 and the fourth negative electrode 13 can push the first negative electrode 8 and the second negative electrode 9 when the caster 11 rotates 90 degrees, so that the turntable 7 can also self-reset.
[0022] In use, the horizontal plate 1 is fixedly installed around the bottom of the vehicle through bolt holes 2. When the vehicle is pushed to move, the first negative electrode 8 or the second negative electrode 9 attracts the first positive electrode 5 or the second positive electrode 6, and the caster 11 is fixed in direction. When turning is required, the vehicle is pushed to turn, and the first negative electrode 8 or the second negative electrode 9 moves away from the first positive electrode 5 or the second positive electrode 6. When the turntable 7 rotates to 90 degrees, the third negative electrode 12 and the fourth negative electrode 13 can push the first negative electrode 8 and the second negative electrode 9 to rotate the turntable 7. As the turntable 7 continues to rotate, until the turntable 7 has rotated more than 90 degrees from its initial position, the first negative electrode 8 or the second negative electrode 9 attracts the second positive electrode 6. When the first positive pole 5 or the second negative pole 6 is close to each other, the attraction between opposite poles of the magnet can drive the turntable 7 to rotate to a position where the first negative pole 8 or the second negative pole 9 is close to the first positive pole 5 or the second positive pole 6, thereby realizing the directional self-reset of the caster 11. Furthermore, the first negative pole 8, the second negative pole 9, the first positive pole 5, the second positive pole 6, the third negative pole 12, and the fourth negative pole 13 are arranged symmetrically in pairs, so the above action can be achieved regardless of the direction of the turntable 7, that is, the bidirectional self-reset function is realized. If the third negative pole 12 and the fourth negative pole 13 are replaced with positive poles, so that all four sides of the horizontal plate 1 are positive poles, then the turntable 7 and the caster 11 can realize four-way self-reset.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A magnetic self-resetting live caster comprising a horizontal plate (1) and a caster (11), characterized in that: The horizontal plate (1) is fixedly connected to a fixed shaft (3) at its center. A turntable (7) is rotatably connected to the end of the fixed shaft (3). Two symmetrically arranged inclined connecting plates (10) are fixedly connected to the side of the turntable (7) away from the horizontal plate (1). Casters (11) are rotatably connected to the ends of the two connecting plates (10). A first negative electrode (8) is fixedly connected to one side of the turntable (7) in a direction parallel to the connecting plate (10). A second negative electrode (9) is fixedly connected to the other side of the turntable (7) in a direction parallel to the connecting plate (10).
2. A magnetic self-resetting live caster wheel according to claim 1, wherein: The horizontal plate (1) has bolt holes (2) around its perimeter, and the bolt holes (2) are rounded rectangular structures.
3. A magnetic self-resetting caster according to claim 1, wherein: A bearing (4) is provided at the center of the opposite surface of the horizontal plate (1) and the turntable (7), and the center of the bearing (4) is sleeved on the fixed shaft (3).
4. A magnetic self-resetting caster wheel according to claim 1, wherein: The first positive electrode (5) is fixedly installed on the horizontal plate (1) on one side of the turntable (7), the second positive electrode (6) is fixedly installed on the horizontal plate (1) on the other side of the turntable (7), and the third negative electrode (12) and the fourth negative electrode (13) are fixedly installed on the horizontal plate (1) in the direction perpendicular to the first positive electrode (5) and the second positive electrode (6).