A 360° silent rotating pulley

Abstract

This utility model discloses a 360° silent rotating pulley, relating to the field of pulley accessory technology. It includes a fixed block, side plates, and a pulley. Side plates are installed on both sides of the fixed block, and a cylinder is installed between the two side plates. The pulley is mounted on the cylinder. A through hole is formed in the center of the fixed block, and a semi-circular head screw is installed inside the through hole. This utility model achieves 360° free rotation around the semi-circular head screw through a rotational engagement between the fixed block and the semi-circular head screw, breaking through the limitation of traditional pulleys' unidirectional movement, improving the steering flexibility of the equipment, and thus enhancing practicality. The pulley forms a rolling engagement with the cylinder through bearings, providing rotation and converting sliding friction into rolling friction, reducing resistance while achieving silent movement. Two bearings are fixed to the side plates by chamfered hexagonal screws, ensuring the stability of the pulley during rotation and preventing offset or wobbling.

Description

Technical Field

[0001] This utility model relates to the field of pulley accessories technology, and in particular to a 360° silent rotating pulley. Background Technology

[0002] A pulley is a small wheel with grooves around its circumference that can rotate around an axis. A simple machine that can rotate around a central axis, consisting of a grooved disc that can rotate around a central axis and a flexible cord (rope, tape, steel cable, chain, etc.) passing over the disc, is called a pulley.

[0003] Existing pulleys produce noticeable and harsh noises during operation. This noise not only causes unnecessary interference in the usage environment, but also tends to intensify over time, sometimes accompanied by problems such as jamming and shaking, making them inconvenient to use and reducing the smoothness of equipment operation. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings mentioned in the background art by proposing a 360° silent rotating pulley.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A 360° silent rotating pulley includes a fixed block, side plates, and a pulley. Side plates are installed on both sides of the fixed block, and a cylinder is installed between the two side plates. The pulley is installed on the cylinder. A through hole is opened in the middle of the fixed block, and a semi-circular head screw is installed inside the through hole.

[0007] Preferably, the upper and lower surfaces of the fixing block are provided with bearing grooves at both ends of the through hole, and bearings one and two are respectively installed in the two bearing grooves. The semi-circular head screw passes through the bearing one, the through hole and the bearing two in sequence.

[0008] Preferably, a washer is installed on the semi-circular head screw, and the washer is located above the fixing block.

[0009] Preferably, the fixing block is connected to both side plates via a fixing assembly.

[0010] Preferably, the fixing component includes a chamfered hexagon socket screw one and a chamfered hexagon socket screw two.

[0011] Preferably, the two ends of the cylinder are connected to the two side plates by chamfered hex socket screws.

[0012] Preferably, bearings are installed at both ends of the pulley, and two bearings are installed on the cylinder.

[0013] Preferably, washers are installed between the two side plates and the pulley, and the washers are fitted onto the cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a rotational engagement between a fixed block and a semi-circular head screw to allow the pulley to rotate freely 360° around the screw. This overcomes the limitation of traditional pulleys' unidirectional movement, improves the equipment's steering flexibility, and thus enhances its practicality. Furthermore, the rope wound around the pulley rotates easily without slipping out, allowing for adjustment of the pulley's direction to adapt to different path requirements. Once the direction is determined, the force is transmitted to the pulley on the inner side of the side plate. The pulley, through bearing three, forms a rolling engagement with the cylinder, enabling pulley rotation and converting sliding friction into rolling friction. This reduces resistance while achieving silent movement. Two bearing threes are fixed to the side plate with chamfered hexagonal screws, ensuring the stability of the pulley during rotation and preventing offset or wobbling, allowing the entire pulley to achieve 360° omnidirectional rotation. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the silent rotating pulley proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing block structure proposed in this utility model;

[0019] Figure 3 Here are schematic diagrams of the bearing one and bearing two proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the side plate structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the pulley structure proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the three-structure bearing proposed in this utility model.

[0023] In the diagram: 10. Fixing block; 11. Through hole; 12. Bearing groove one; 20. Half-round head screw; 21. Washer one; 22. Bearing one; 23. Bearing two; 30. Side plate; 31. Chamfered hex socket screw one; 32. Chamfered hex socket screw two; 33. Chamfered hex socket screw three; 40. Pulley; 41. Bearing three; 50. Cylinder; 51. Washer. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 As shown, a 360° silent rotating pulley includes a fixing block 10, a semi-circular head screw 20, a side plate 30, a pulley 40, and a cylinder 50.

[0026] Reference Figure 1 , Figure 4 As shown, both sides of the fixing block 10 are connected to the two side plates 30 through fixing components, so that the two side plates 30 are fixed on the fixing block 10. The fixing components include chamfered hexagon socket screw 1 31 and chamfered hexagon socket screw 2 32. One end of chamfered hexagon socket screw 1 31 and chamfered hexagon socket screw 2 32 passes through the side plate 30 and is fixed on the fixing block 10.

[0027] Reference Figure 2 , Figure 3 As shown, a through hole 11 is provided in the middle of the fixing block 10. A semi-circular head screw 20 is installed inside the through hole 11. Bearing grooves 12 are provided on both the upper and lower ends of the fixing block 10 at the two ends of the through hole 11. Bearing 22 and bearing 23 are respectively installed in the two bearing grooves 12. The semi-circular head screw 20 passes through the bearing 22, the through hole 11 and the bearing 23 in sequence. A washer 21 is installed on the semi-circular head screw 20 above the fixing block 10.

[0028] Reference Figure 5 , Figure 6 As shown, a cylinder 50 is installed between the two side plates 30. Both ends of the cylinder 50 are connected to the two side plates 30 via chamfered hexagonal socket head cap screws 33, thus fixing the cylinder 50 between the two side plates 30. Bearings 41 are installed at both ends of the pulley 40, and the two bearings 41 are mounted on the cylinder 50. Washers 51 are installed between the two side plates 30 and the pulley 40, and the washers 51 are fitted onto the cylinder 50.

[0029] Existing pulleys produce noticeable and harsh noises during operation. This noise not only causes unnecessary interference in the usage environment, but also tends to intensify with increased use, sometimes accompanied by jamming or shaking, making them inconvenient to use and reducing the smoothness of equipment operation. To address this issue, in this application, the operator fixes the fixing block 10 to the connecting plate or other object using the semi-circular head screw 20. The pushing or pulling force of the object acts on the connecting plate, causing the semi-circular head screw 20 and the entire pulley assembly to bear force. When the rope passes through the pulley 40, it is connected to the fixing block 10 and the semi-circular head screw 20... The two parts form a rotational fit, allowing the pulley 40 to rotate freely 360° around the semi-circular head screw 20. The rope wrapped around the pulley 40 rotates well and will not run out, thus adjusting the direction of the pulley 40 to adapt to different path requirements. After the direction is determined, the force is transmitted to the pulley 40 on the inner side of the side plate 30. The pulley 40 forms a rolling fit with the cylinder 50 through the bearing 31, which can provide rotation of the pulley 40 and convert sliding friction into rolling friction, reducing resistance and achieving silent movement. The two bearings 31 are fixed to the side plate 30 by the chamfered hexagonal screws 33 to ensure the stability of the pulley 40 when rotating and avoid deviation or shaking.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A 360° silent rotating pulley comprising a fixed block (10), a side plate (30) and a pulley (40), characterized in that: Side plates (30) are installed on both sides of the fixing block (10), and a cylinder (50) is installed between the two side plates (30). A pulley (40) is installed on the cylinder (50). A through hole (11) is opened in the middle of the fixing block (10), and a semi-circular head screw (20) is installed inside the through hole (11).

2. The 360° silent rotating pulley according to claim 1, characterized in that, The upper and lower surfaces of the fixing block (10) are provided with bearing grooves (12) at both ends of the through hole (11). Bearings (22) and (23) are respectively installed in the two bearing grooves (12). The semi-circular head screw (20) passes through the bearing (22), the through hole (11) and the bearing (23) in sequence.

3. A 360° silent rotating pulley according to claim 2, characterized in that, A washer (21) is installed on the semi-circular head screw (20), and the washer (21) is located above the fixing block (10).

4. A 360° silent rotating pulley according to claim 1, characterized in that, The fixing block (10) and the two side plates (30) are connected by fixing components.

5. A 360° silent rotating pulley according to claim 4, characterized in that, The fixing assembly includes a chamfered hex socket screw one (31) and a chamfered hex socket screw two (32).

6. A 360° silent rotating pulley according to claim 1, characterized in that, The two ends of the cylinder (50) are connected to the two side plates (30) respectively by chamfered hexagonal screws (33).

7. A 360° silent rotating pulley according to claim 6, characterized in that, Both ends of the pulley (40) are equipped with bearings (41), and two bearings (41) are mounted on the cylinder (50).

8. A 360° silent rotating pulley according to claim 7, characterized in that, Washers (51) are installed between the two side plates (30) and the pulley (40), and the washers (51) are fitted onto the cylinder (50).

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