One-way deceleration damper and pipe and wire coiling device

Abstract

The utility model discloses a one-way deceleration damper which comprises a damping shell, a damping seat and a plurality of damping blocks. The damping base is rotationally arranged in the damping shell, and the multiple damping blocks are arranged between the damping shell and the damping base. The damping seat is provided with a plurality of sliding rails and limiting ribs, and the damping block is provided with a sliding surface and a limiting surface; when the damping base rotates, the sliding face moves in the mode of being attached to the sliding rail, the damping block moves outwards, and the outer surface of the damping block rubs against the inner wall of the damping shell; when the damping seat rotates reversely, the limiting rib is attached to the limiting face to prevent the damping block from moving outwards, and a gap is kept between the outer surface of the damping block and the inner wall of the damping shell without friction. The one-way deceleration damper can dynamically adjust damping force and is simple in structure, frictional resistance is automatically triggered in the winding process of a line pipe, the resistance is enhanced along with increase of the rotating speed, it is guaranteed that the winding process is stable and reliable, and the product cost is low.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical transmission storage tools, specifically a one-way deceleration damper and a winding and coiling device. Background Technology

[0002] Cable reel devices are used for the release and reeling of cables or hoses, enabling orderly management of conduits, preventing tangling, supporting long-distance release, and automatic reeling. They are widely used in automotive repair shops, industrial assembly lines, and other applications. The release of conduits needs to be efficient and smooth, with no speed limit; the automatic reeling process needs to ensure stable speed to prevent excessive speed from causing conduit tangling, equipment damage, or operational loss of control. Therefore, a unidirectional deceleration damper is required to achieve natural release of the conduit and adjust the reeling speed during reeling to prevent excessive reeling speed.

[0003] Traditional technologies employ spring-type damping structures, relying on the action of elastic elements to provide resistance. After long-term use, these structures are prone to fatigue failure, and the complex assembly of multiple components increases the risk of failure and manufacturing costs.

[0004] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0005] This utility model addresses the above-mentioned technical problems by providing a unidirectional deceleration damper and a winding device for coiling. The unidirectional deceleration device is capable of dynamically adjusting the damping force and has a simple and compact structure. During the coil winding process, frictional resistance can be automatically triggered, and the resistance increases with the increase of rotational speed, ensuring the stability and reliability of the winding process, extending service life, and reducing product costs.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A unidirectional deceleration damper includes a damping shell, a damping seat, and a plurality of damping blocks; the damping seat is rotatably disposed within the damping shell, and the plurality of damping blocks are disposed between the damping shell and the damping seat;

[0008] The damping seat is provided with several sliding rails and limiting ribs, and the damping block is provided with a sliding surface and a limiting surface;

[0009] When the damping seat rotates, the sliding surface moves in contact with the sliding rail, and the damping block moves outward, with its outer surface rubbing against the inner wall of the damping housing; when the damping seat rotates in the opposite direction, the limiting ribs fit against the limiting surface to prevent the damping block from moving outward, and the outer surface of the damping block maintains a gap with the inner wall of the damping housing to prevent friction.

[0010] During use, when the cable is released, the cable pulls the damping seat to rotate. The limiting rib of the damping seat fits against the limiting surface of the damping block to prevent the damping block from moving outward. The outer surface of the damping block and the inner wall of the damping housing maintain a gap and do not contact each other. There is no friction between the two, and the cable is released naturally. The release speed of the cable is determined according to the user's needs.

[0011] When the conduit is automatically wound up, the damping seat rotates in the opposite direction, and the sliding surface of the damping block contacts the sliding rail of the damping seat. Under the action of centrifugal force, the damping block moves outward along the contact surface, so that the outer arc surface of the damping block contacts the inner wall of the damping housing and rotates and rubs against it. Due to the friction, the damping block reduces the rotational speed of the damping seat, thereby reducing the winding speed of the conduit and preventing the conduit from becoming tangled, damaged, or out of control due to excessive speed. The frictional resistance between the damping block and the damping housing increases with the rotational speed, which can dynamically adjust the damping force to ensure the stability and reliability of the winding process.

[0012] This unidirectional deceleration damper does not use elastic elements, so there will be no fatigue failure of parts, resulting in a long service life; the entire structure is simple and compact, and the manufacturing cost is low.

[0013] In a further optimized design, the damping seat is provided with several guide ribs, one side of which is a sliding rail and the other side is a limiting rib.

[0014] The damping block has a groove, one side of which is the limiting surface and the other side is the sliding surface.

[0015] A further optimized design involves either a planar fit structure or an arc-shaped fit structure between the sliding rail and the sliding surface. The arc-shaped fit structure increases frictional resistance compared to the planar fit structure. When the damping seat moves outward and greater frictional resistance is required, an arc-shaped fit structure can be used; otherwise, a planar fit structure is used.

[0016] In a further optimized design, the sliding rail is equipped with a radial offset angle, the offset direction of which is opposite to the direction of rotation of the damping seat when the damping block moves outward. The purpose of setting the radial offset angle on the sliding rail is to increase the frictional resistance when the damping seat moves outward.

[0017] In a further optimized design, the bottom of the damping housing is provided with several chip removal holes. These holes discharge the dust generated by the friction between the outer arc surface of the damping block and the inner wall of the damping housing, preventing excessive accumulation of dust that could prevent the damping seat from rotating.

[0018] A winding device for reeling and winding, comprising any of the unidirectional deceleration dampers described above.

[0019] A further optimized design incorporates a synchronous pulley structure on the outer surface of the damping seat. This synchronous pulley structure is connected to a speed-increasing pulley via a synchronous belt drive, and the speed-increasing pulley is rotatably mounted on a speed-increasing pulley seat. The damping seat and the speed-increasing pulley are connected by a synchronous belt drive, resulting in a simple structure and reliable operation.

[0020] Compared with the prior art, the unidirectional deceleration damper and the coiling device of this utility model have the following technical advantages:

[0021] 1. The one-way damping effect is significant. During the rotation of the damping seat, the cable releases naturally, ensuring high efficiency. When the cable is retracted, friction deceleration is automatically triggered, ensuring stable and reliable retraction.

[0022] 2. The chip removal hole design prevents the accumulation of powder and ensures smooth rotation of the damping seat during use without jamming, thus improving the stability of use;

[0023] 3. It has a simple and compact structure, low manufacturing cost, and is suitable for various working scenarios, such as auto repair shops, industrial production assembly lines, vacuum cleaners, etc. Attached Figure Description

[0024] Figure 1 is a front view of the damping seat rotating counterclockwise in a specific embodiment of the unidirectional deceleration damper of this utility model.

[0025] Figure 2 is a front view of the damping seat in Figure 1 rotated clockwise;

[0026] Figure 3 is an exploded view of the parts in Figure 1;

[0027] Figure 4 is a front view of the damping seat in Figure 1;

[0028] Figure 5 is a front view of the damping block in Figure 1;

[0029] Figure 6 is a perspective view of the damping shell in Figure 1;

[0030] Figure 7 is a schematic diagram of the fit between the damping seat and the damping block in Figure 1;

[0031] Figure 8 is a schematic diagram of the fit between the damping seat and the damping block in Figure 2;

[0032] Figure 9 is a three-dimensional view of the transmission between the damping seat and the speed-increasing wheel in Figure 1;

[0033] Figure 10 is an exploded view of Figure 9.

[0034] In the figure: damping housing 10, cavity 11, chip removal hole 12, fixed shaft 13, damping seat 20, guide rib 21, sliding rail 22, limiting rib 23, synchronous pulley structure 24, damping block 30, groove 31, sliding surface 33, limiting surface 34, synchronous belt 40, speed-increasing pulley 50, speed-increasing pulley seat 60. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0036] As shown in Figures 1 to 8, this is a specific embodiment of the unidirectional deceleration damper of the present invention.

[0037] As shown in Figures 1, 2 and 3, the unidirectional deceleration damper of this embodiment includes a damping housing 10, a damping seat 20 and four damping blocks 30; the damping housing 10 has a cavity 11 with one side open, and the damping seat 20 is rotatably disposed at the center of the cavity 11; the four damping blocks 30 are arranged in a ring inside the cavity 11 and located between the damping housing 10 and the damping seat 20, and the damping blocks 30 rotate with the damping seat 20;

[0038] As shown in Figure 4, the damping seat 20 is provided with eight guide ribs 21, which are four sliding rails 22 and four limiting ribs 23; as shown in Figure 5, the damping block 30 is provided with a sliding surface 33 and a limiting surface 34.

[0039] As shown in Figure 5, the damping block 30 has a groove 31, one side of which is a limiting surface 34, and the other side is a sliding surface 33.

[0040] As shown in Figure 2, the damping seat 20 rotates clockwise in the direction shown in the figure, and the limiting rib 23 fits against the limiting surface 34 to prevent the damping block 30 from moving outward. The outer surface of the damping block 30 maintains a gap with the inner wall of the damping housing 10 to prevent friction.

[0041] As shown in Figure 1, the damping seat 20 rotates counterclockwise in the direction shown in the figure, the sliding surface 33 moves in contact with the sliding rail 22, the damping block 30 moves outward, and its outer surface rubs against the inner wall of the damping housing 10.

[0042] As shown in Figures 3 and 6, a fixed shaft 13 is provided at the center of the cavity 11 of the damping housing 10. Two bearings are provided above and below the fixed shaft 13 to fix the damping seats 20. The damping seats 20 and four damping blocks 30 rotate on the fixed shaft 13 through the bearings.

[0043] During use, when the cable is released, the cable pulls the damping seat to rotate. The limiting rib of the damping seat fits against the limiting surface of the damping block to prevent the damping block from moving outward. The outer surface of the damping block and the inner wall of the damping housing maintain a gap and do not contact each other. There is no friction between the two, and the cable is released naturally. The release speed of the cable is determined according to the user's needs.

[0044] When the conduit is automatically wound up, the damping seat rotates in the opposite direction, and the sliding surface of the damping block comes into contact with the sliding rail of the damping seat. Under the action of centrifugal force, the damping block moves outward along the contact surface, so that the outer arc surface of the damping block contacts the inner wall of the damping housing and rotates and rubs. Due to the friction, the damping block reduces the rotation speed of the damping seat, thereby reducing the winding speed of the conduit and preventing the conduit from getting tangled, the equipment from being damaged, or the operation from going out of control due to excessive speed.

[0045] According to the formula for centrifugal force: F=mw²r, the magnitude of centrifugal force can be adjusted by configuring the mass m of the damping block. According to the formula for friction: f=F*u (u is the coefficient of friction), increasing the mass m of the damping block increases the pressure of the damping block on the inner wall of the damping shell, thereby increasing the frictional force; the coefficient of friction between the two can also be adjusted to increase the frictional force, thus achieving a better deceleration effect.

[0046] This unidirectional deceleration damper does not use elastic elements, thus avoiding component fatigue failure and ensuring a long service life. The overall structure is simple and compact, resulting in low manufacturing costs. The frictional resistance between the damping block and the damping housing increases with rotational speed, allowing for dynamic adjustment of the damping force to ensure stable and reliable winding.

[0047] As shown in Figures 7 and 8, the sliding rail 22 and the sliding surface 33 have either a planar contact structure or an arc-shaped contact structure. The arc-shaped contact structure can increase the frictional resistance compared to the planar contact structure. When the damping seat 20 moves outward and requires greater frictional resistance, the arc-shaped contact structure can be used; otherwise, the planar contact structure is used.

[0048] As shown in Figure 4, the sliding rail 22 is provided with a radial offset angle. The offset direction is opposite to the direction of rotation of the damping seat 20 when the damping block 30 moves outward. The radial offset angle is 10°. The purpose of providing a radial offset angle to the sliding rail 22 is to increase the frictional resistance when the damping seat 20 moves outward.

[0049] As shown in Figure 6, the bottom of the damping housing 10 is provided with six chip removal holes 12. The chip removal holes 12 discharge the dust generated by the friction between the outer arc surface of the damping block 30 and the inner wall of the damping housing 10, preventing excessive accumulation of dust that would prevent the damping seat 20 from rotating.

[0050] This utility model also discloses a coiling and winding device, including the aforementioned unidirectional deceleration damper.

[0051] As shown in Figures 9 and 10, a synchronous pulley structure 24 is provided on the outer surface of the damping seat 20 relative to the cavity 11. The synchronous pulley structure 24 is connected to the speed-increasing pulley 50 via a synchronous belt 40. The speed-increasing pulley 50 is rotatably mounted on the speed-increasing pulley seat 60. The damping seat 20 and the speed-increasing pulley 50 are driven by the synchronous belt 40, which has a simple structure and reliable operation.

[0052] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. A unidirectional deceleration damper, characterized in that: It includes a damping shell (10), a damping seat (20) and a plurality of damping blocks (30); the damping seat (20) is rotatably disposed inside the damping shell (10), and the plurality of damping blocks (30) are disposed between the damping shell (10) and the damping seat (20); The damping seat (20) is provided with a plurality of sliding rails (22) and limiting ribs (23), and the damping block (30) is provided with a sliding surface (33) and a limiting surface (34). The damping seat (20) rotates, the sliding surface (33) moves in contact with the sliding rail (22), the damping block (30) moves outward, and its outer surface rubs against the inner wall of the damping housing (10); the damping seat (20) rotates in the opposite direction, the limiting rib (23) is in contact with the limiting surface (34) to prevent the damping block (30) from moving outward, and the outer surface of the damping block (30) maintains a gap with the inner wall of the damping housing (10) without friction.

2. The unidirectional deceleration damper according to claim 1, characterized in that, The damping seat (20) is provided with several guide ribs (21), one side of the guide rib (21) is a sliding rail (22), and the other side is a limiting rib (23). The damping block (30) is provided with a groove (31), one side of which is the limiting surface (34), and the other side is the sliding surface (33).

3. The unidirectional deceleration damper according to claim 1, characterized in that, The sliding rail (22) and the sliding surface (33) are either a planar bonding structure or an arc bonding structure.

4. The unidirectional deceleration damper according to claim 1, characterized in that, The sliding rail (22) has a radial offset angle, and the offset direction is opposite to the direction of rotation of the damping seat (20) when the damping block (30) moves outward.

5. The unidirectional deceleration damper according to claim 1, characterized in that, The damping housing (10) has several chip removal holes (12) at its bottom.

6. A coil winding device, characterized in that: Includes the unidirectional deceleration damper as described in any one of claims 1 to 5.

7. The winding and coiling device according to claim 6, characterized in that, The outer surface of the damping seat (20) is provided with a synchronous wheel structure (24), which is connected to the speed-increasing wheel (50) via a synchronous belt (40). The speed-increasing wheel (50) is rotatably mounted on the speed-increasing wheel seat (60).

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