Eccentric universal wheel

Abstract

The utility model discloses an eccentric universal wheel which comprises a flange plate and a fixing frame, the two sides of the fixing frame are each fixedly connected with a pair of limiting rods, a transverse plate is arranged on the limiting rods in a penetrating mode, a spring is arranged between the transverse plate and the fixing frame, one end of the transverse plate is fixedly connected with a connecting plate, and one side of the connecting plate is fixedly connected with a blade. The blade can penetrate through a first through hole in the fixing frame, a transverse plate is pressed, when the transverse plate moves, a spring shrinks, meanwhile, the transverse plate can move more stably under the limiting effect of a limiting rod, and then a connecting plate drives the connecting plate and the blade to move till the blade penetrates through the first through hole and makes contact with a protection plate; therefore, wound thread residues, hair and other foreign matters can be cut off and cleaned quickly, and the operation effect of the eccentric universal wheel is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of universal wheels, in particular to an eccentric universal wheel. Background Art

[0002] Universal wheels are so-called movable casters. Their structure allows 360-degree horizontal rotation. Universal wheels are divided into eccentric universal wheels and non-eccentric universal wheels. Eccentric universal wheels are more convenient when turning, which makes universal wheels widely used in industry and life.

[0003] For example, the security patrol robot disclosed in the utility model with authorization announcement number CN214189175U has a buffered and adjustable eccentricity universal wheel. The utility model has a simple structure, a long service life, and a wide range of applications. It is connected to the vehicle body through a mounting flange. During movement, the steering shaft rotates to actively adapt the movement direction. The eccentricity can be adjusted by adjusting the fixed position of the bracket through hole. The spring can be replaced according to usage requirements to adjust the load-bearing capacity of the universal wheel to achieve the best buffering effect. However, when the device is in use, the universal wheel is easily entangled with foreign objects such as thread ends and hair, which affects its operating effect and is inconvenient for manual cleaning. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an eccentric universal wheel, which can solve the technical problem that when the device is in use, the universal wheel is easily entangled with foreign objects such as thread ends and hair, thereby affecting its operating effect and being inconvenient to clean manually.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an eccentric universal wheel, comprising a flange and a fixed frame, a pair of limit rods are fixedly connected on both sides of the fixed frame, a cross plate is passed through the limit rods, a spring is arranged between the cross plate and the fixed frame, one end of the cross plate is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a blade, and the blade can pass through the first through hole on the fixed frame.

[0006] As a preferred technical solution of the utility model, a connecting shaft is rotatably arranged inside the fixing frame, and a roller is fixedly connected to the connecting shaft.

[0007] As a preferred technical solution of the present utility model, a protective plate is provided on the outer side of the roller.

[0008] As a preferred technical solution of the utility model, a rotating shaft is provided at the lower end of the flange, and a bracket is fixedly connected to the lower end of the rotating shaft.

[0009] As a preferred technical solution of the utility model, a plurality of threaded holes are provided on both sides of the bracket, and the distances between the threaded holes are equal.

[0010] As a preferred technical solution of the utility model, a pair of fixing plates are fixedly connected to the upper end of the fixing frame, a second through hole is opened on the fixing plate, and a half-thread bolt passes through the second through hole, and one end of the half-thread bolt can be threadedly connected to the threaded hole.

[0011] Compared with the prior art, the beneficial effect that the utility model can achieve is: by pressing the horizontal plate, the spring contracts when the horizontal plate moves, and at the same time the horizontal plate can move more stably under the limiting action of the limiting rod, and the horizontal plate then drives the connecting plate and the blade to move until the blade passes through the first through hole and contacts the protective plate, so that entangled wire ends, hair and other foreign objects can be quickly cut off and cleaned, avoiding affecting the operating effect of the eccentric universal wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the flange and the fixing frame of the utility model;

[0013] Figure 2 This is a side view structural diagram of the flange and the fixing frame of the utility model;

[0014] Figure 3 This is a schematic diagram of the overall structure of the fixing frame of the utility model;

[0015] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0016] Among them: 1. Flange; 2. Fixing frame; 3. Limit rod; 4. Horizontal plate; 5. Spring; 6. Connecting plate; 7. Blade; 8. First through hole; 9. Connecting shaft; 10. Roller; 11. Protective plate; 12. Rotating shaft; 13. Bracket; 14. Threaded hole; 15. Fixing plate; 16. Second through hole; 17. Half-thread bolt. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0018] Example

[0019] Please refer to Figure 1-Figure 3As shown, the utility model provides an eccentric universal wheel, a connecting shaft 9 is rotatably arranged on the inner side of a fixing frame 2, a roller 10 is fixedly connected to the connecting shaft 9, a protective plate 11 is arranged on the outer side of the roller 10, and the protective plate 11 can be used in conjunction with a blade 7 to prevent the blade 7 from damaging the roller 10, a rotating shaft 12 is arranged at the lower end of the flange 1, a bracket 13 is fixedly connected to the lower end of the rotating shaft 12, a plurality of threaded holes 14 are provided on both sides of the bracket 13, and the distances between the threaded holes 14 are equal, a pair of fixing plates 15 are fixedly connected to the upper end of the fixing frame 2, a second through hole 16 is provided on the fixing plate 15, and a half-thread bolt 17 is passed through the second through hole 16, and one end of the half-thread bolt 17 can be threadedly connected to the threaded hole 14.

[0020] During use, when the eccentricity of the universal wheel needs to be adjusted, the half-thread bolt 17 is rotated to make the half-thread bolt 17 leave the threaded hole 14, and the fixing frame 2 and the fixing plate 15 on the fixing frame 2 are moved, and the second through hole 16 on the fixing plate 15 is aligned with the appropriate threaded hole 14, and then the half-thread bolt 17 is rotated again to make one end of the half-thread bolt 17 threadedly connected to the threaded hole 14, so that the fixing frame 2 and the fixing plate 15 can be fixed at different positions on the bracket 13 again, thereby realizing the adjustment of the eccentricity and meeting more work and use requirements.

[0021] As a further implementation of this embodiment, Figure 1-Figure 4 As shown, a pair of limit rods 3 are fixedly connected on both sides of the fixed frame 2, and a horizontal plate 4 is passed through the limit rod 3. The horizontal plate 4 can move along the limit rod 3. A spring 5 is fixedly arranged between the horizontal plate 4 and the fixed frame 2. A connecting plate 6 is fixedly connected to one end of the horizontal plate 4, and a blade 7 is fixedly connected to one side of the connecting plate 6. The blade 7 can pass through the first through hole 8 on the fixed frame 2.

[0022] When in use, by pressing the cross plate 4, the spring 5 contracts when the cross plate 4 moves, and at the same time the cross plate 4 can move more stably under the limiting action of the limiting rod 3, and the cross plate 4 then drives the connecting plate 6 and the blade 7 to move until the blade 7 passes through the first through hole 8 and contacts the protective plate 11, so that the entangled thread ends, hair and other foreign objects can be quickly cut off and cleaned to avoid affecting the operation effect of the eccentric universal wheel.

[0023] When the eccentric universal wheel is in use, the spring 5 can be pressed to contract when the cross plate 4 moves. At the same time, the cross plate 4 can move more stably under the limiting action of the limiting rod 3, and the cross plate 4 can drive the connecting plate 6 and the blade 7 to move until the blade 7 passes through the first through hole 8 and contacts the protective plate 11, so that the entangled foreign matter such as thread ends and hair can be quickly cut off and cleaned, thereby avoiding affecting the operation effect of the eccentric universal wheel. When the eccentricity of the universal wheel needs to be adjusted, the half-thread bolt 17 is turned to make the half-thread bolt 17 leave the threaded hole 14, and the fixing frame 2 and the fixing plate 15 on the fixing frame 2 are moved, and the second through hole 16 on the fixing plate 15 is aligned with the appropriate threaded hole 14, and then the half-thread bolt 17 is turned again to make one end of the half-thread bolt 17 threadedly connected to the threaded hole 14, and the fixing frame 2 and the fixing plate 15 can be fixed to different positions on the bracket 13 again, thereby realizing the adjustment of the eccentricity to meet more work and use requirements.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An eccentric universal wheel, comprising a flange (1) and a fixing frame (2), characterized in that: A pair of limiting rods (3) are fixedly connected to both sides of the fixing frame (2); a transverse plate (4) is passed through the limiting rods (3); a spring (5) is arranged between the transverse plate (4) and the fixing frame (2); one end of the transverse plate (4) is fixedly connected to a connecting plate (6); one side of the connecting plate (6) is fixedly connected to a blade (7); and the blade (7) can pass through a first through hole (8) on the fixing frame (2).

2. The eccentric universal wheel according to claim 1, characterized in that: A connecting shaft (9) is rotatably arranged inside the fixing frame (2), and a roller (10) is fixedly connected to the connecting shaft (9).

3. The eccentric universal wheel according to claim 2, characterized in that: A protective plate (11) is provided on the outer side of the roller (10).

4. The eccentric universal wheel according to claim 1, characterized in that: A rotating shaft (12) is arranged at the lower end of the flange (1), and a bracket (13) is fixedly connected to the lower end of the rotating shaft (12).

5. The eccentric universal wheel according to claim 4, characterized in that: A plurality of threaded holes (14) are provided on both sides of the bracket (13), and the distances between the threaded holes (14) are equal.

6. The eccentric universal wheel according to claim 1, characterized in that: A pair of fixing plates (15) are fixedly connected to the upper end of the fixing frame (2), a second through hole (16) is opened on the fixing plate (15), and a half-thread bolt (17) passes through the second through hole (16), and one end of the half-thread bolt (17) can be threadedly connected to the threaded hole (14).

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