A rope adjustment device

By using an eccentrically connected wheel and axle structure and a rope locking buckle design, the problem of the inability to adjust the rope when it is taut under stress is solved, enabling convenient adjustment of the rope length under stress and meeting the flexibility requirements during climbing.

CN224442068UActive Publication Date: 2026-07-03CHONGQING HONGKE OUTDOOR PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HONGKE OUTDOOR PROD CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing rope adjusters cannot adjust the length when the rope is taut, causing inconvenience for climbers during the climb.

Method used

The eccentric connection between the wheel and axle, combined with the design of the rope lock and lugs, allows the rope to be adjusted by friction when it is taut. The eccentric structure and anti-rotation plane limit the rotation of the wheel, and the anti-slip texture design facilitates manual adjustment.

Benefits of technology

It enables convenient and flexible adjustment of rope length even when the rope is taut, meeting the actual needs during climbing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rope adjustment device, including a shaft, a wheel mounted on the shaft, a rope lock, and a lifting lug. The wheel and shaft are eccentrically connected, and the rope lock is rotatably mounted on the shaft. A first channel is provided between the rope lock and the wheel. This rope adjustment device can adjust the rope length even when the rope is taut, especially by lengthening the rope length between the climber and the adjustment device. This allows climbers to adjust the rope length more conveniently and flexibly according to their actual needs during climbing.
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Description

Technical Field

[0001] This utility model relates to the field of outdoor products technology, specifically to a rope adjustment device. Background Technology

[0002] In climbing activities (such as mountaineering, rock climbing, caving, etc.), specific wrapping and knotting methods or the use of equipment are required to securely fix the rope to the corresponding anchor points (such as protection points, carabiners, body equipment, etc.) to achieve the purpose of a safe and flexibly adjustable rope.

[0003] In the existing technical field, rope length adjustment is typically achieved using a rope adjuster. For example, a rope adjuster is disclosed in patent application CN206424445U. However, current adjusters have certain limitations. When a person is suspended, i.e., the rope is taut, the rope length cannot often be adjusted. This is because when the rope is taut, the adjuster automatically locks the rope, making adjustment impossible.

[0004] To adjust rope length, it's usually necessary to pre-adjust before the climb begins, while the rope is still taut. If adjustments are needed during the climb when the rope is taut, especially to lengthen the rope between the climber and the adjuster, the climber must first find a suitable stopping point to allow the rope to slack before making the adjustment. Therefore, adjusting rope length during a climb presents numerous inconveniences for climbers. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a rope adjustment device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a rope adjusting device including a shaft, a wheel body disposed on the shaft, a rope locking buckle, and a lifting lug; the wheel body and the shaft body are connected by an eccentric connection, the rope locking buckle is rotatably disposed on the shaft body, and a first channel is provided between the rope locking buckle and the wheel body.

[0007] Furthermore, the rope locking buckle includes a front connecting plate, a rear connecting plate, and a rope pressing block. The front connecting plate and the rear connecting plate are rotatably mounted on the shaft, and the rope pressing block is located between the front connecting plate and the rear connecting plate, forming a first channel between the rope pressing block and the wheel.

[0008] Furthermore, the wheel body is restricted from circumferential rotation on the axle.

[0009] Furthermore, an anti-rotation plane is provided on the surface of the axle, and a square hole is provided on the wheel body that is adapted to the cross-sectional shape and size of the axle. The square hole is offset from the wheel center, and the axle passes through the square hole.

[0010] Furthermore, the front connecting plate and the rear connecting plate are located on both sides of the wheel body, respectively.

[0011] Furthermore, a deflector is provided between the front connecting plate and the rear connecting plate corresponding to the rope pressing block, and the wheel is located between the rope pressing block and the deflector. A second channel is provided between the deflector and the wheel.

[0012] Furthermore, the outer surface of the rope pressing block and the actuating part is provided with a textured anti-slip pattern.

[0013] Furthermore, the lifting lug includes a connecting body and a lifting hole provided on the connecting body, and the lower end of the connecting body is connected to the shaft.

[0014] This utility model discloses a rope adjustment device that can still adjust the rope length even when the rope is taut. In particular, it can lengthen the rope length between the climber and the adjustment device, allowing the climber to adjust the rope length more conveniently and flexibly according to actual needs during the climb. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration.

[0016] Figure 1 This is a perspective view of a rope adjustment device according to the present invention.

[0017] Figure 2 This is a perspective view of another angle of the rope adjustment device of this utility model.

[0018] Figure 3 This is an exploded perspective view of a rope adjustment device according to the present invention.

[0019] Figure 4 This is a schematic diagram illustrating the use of the rope adjustment device of this utility model when a rope is installed.

[0020] In the diagram, 1 is the shaft, 2 is the wheel, 3 is the rope lock, 4 is the lifting lug, 30 is the front connecting plate, 31 is the rear connecting plate, 32 is the rope pressing block, 5 is the first channel, 10 is the anti-rotation plane, 20 is the square hole, 33 is the actuating part, 6 is the second channel, 40 is the connecting body, 41 is the lifting hole, and 7 is the anti-slip texture. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0022] like Figures 1 to 3As shown, the rope adjusting device of this utility model includes a shaft 1, a wheel 2 mounted on the shaft 1, a rope locking buckle 3, and a lifting lug 4. The wheel 2 and the shaft 1 are connected eccentrically, meaning that the shaft 1 does not pass through the geometric center of the wheel 2, but rather passes through or connects to the wheel 2 from an off-center position. The wheel 2 is used to wind and support the rope, and to better wind and support the rope, the surface of the wheel 2 is designed with a concave structure along the circumference. The rope locking buckle 3 is rotatably mounted on the shaft 1, and a first channel 5 for the rope to pass through is provided between the rope locking buckle 3 and the wheel 2.

[0023] Because the wheel 2 and axle 1 are eccentrically connected, during use, when the rope is under tension, it will come into contact with the locking buckle 3, generating friction. This causes the locking buckle 3 to rotate, resulting in relative displacement between the locking buckle 3 and the wheel 2, thus changing the size of the first channel 5. When the size of the first channel 5 is smaller than the outer diameter of the rope, the rope will be locked between the locking buckle 3 and the wheel 2. During climbing, even if the climber is hoisted or the rope becomes taut for other reasons, the climber can simply use their hand to reverse the locking buckle 3 to loosen the rope. The climber can then use their other hand to pull or loosen the other end of the rope to adjust or control its length. After adjustment, releasing the hand will cause the rope to be automatically locked again by the device due to tension.

[0024] In this embodiment, the rope locking buckle 3 includes a front connecting plate 30, a rear connecting plate 31, and a rope pressing block 32. The front connecting plate 30 and the rear connecting plate 31 are rotatably mounted on the shaft 1, and the rope pressing block 32 is disposed between the front connecting plate 30 and the rear connecting plate 31, forming a first channel 5 between the rope pressing block 32 and the wheel 2.

[0025] As a preferred embodiment, the circumferential rotation of the wheel 2 on the axle 1 is restricted. Specifically, the surface of the axle 1 is provided with an anti-rotation plane 10, and the wheel 2 is provided with a square hole 20 adapted to the cross-sectional shape and size of the axle 1. The square hole 20 is offset from the wheel center of the wheel 2, and the axle 1 passes through the square hole 20, thereby restricting the circumferential rotation of the wheel 2 on the axle 1.

[0026] A deflector 33 is provided between the front connecting plate 30 and the rear connecting plate 31 corresponding to the rope pressing block 32. The wheel 2 is located between the rope pressing block 32 and the deflector 33, and a second channel 6 for the rope to pass through is provided between the deflector 33 and the wheel 2. The outer surfaces of the rope pressing block 32 and the deflector 33 are provided with concave-convex anti-slip textures 7 to facilitate manual rotation of the rope locking buckle 3. In this embodiment, the front connecting plate 30, the rear connecting plate 31, the rope pressing block 32, and the deflector 33 are integrally formed to constitute the rope locking buckle 3.

[0027] In this embodiment, the rope-pressing block 32 is located on the left side of the wheel body 2, the actuating part 33 is located on the right side of the wheel body 2, and the square hole 20 is located on the lower right side of the wheel body 2. The specific eccentric position and the size of the space between the wheel body 2 and the rope-pressing block 32 can be selected and adjusted according to actual needs to adapt to different types of ropes.

[0028] In this embodiment, the front connecting plate 30 and the rear connecting plate 31 are located on both sides of the wheel body 2. The lifting lug 4 includes a connecting body 40 and a lifting hole 41 provided above the connecting body 40. The lower end of the connecting body 40 is located on the outer side of the front connecting plate 30 and the rear connecting plate 31, and is fixedly connected to the axle 1. The end of the axle 1 is fixedly mounted on the axle 1 by means of nuts or riveting, thereby limiting the wheel body 2, the rope lock buckle 3 and the lifting lug 4.

[0029] Combination Figure 4 The working principle of this utility model's rope adjustment device is as follows: In use, the device is installed at a support point or safety point via the lifting lug 4, such as hanging it on a climbing carabiner. The rope passes through the first channel 5 and the second channel 6 and wraps around the wheel 2. Here, "wrapping" refers to entering through one channel and exiting through the other, rather than multiple turns. The rope on the right side is connected to the safety equipment worn by the climber, jointly providing safety for the climber, while the rope on the left side is in a free and unloaded state. When the rope on the right side is subjected to the climber's weight, the friction generated by the rope contacting the carabiner 3 will cause the carabiner 3 to rotate appropriately in a clockwise direction, resulting in relative rotation between the carabiner 3 and the wheel 2. Because the wheel 2 is eccentrically positioned, the distance between the rope-pressing block 32 and the wheel 2 will decrease, thus the rope-pressing block 32 and the wheel 2 cooperate to lock the rope, ensuring the climber's safety. When the rope length needs to be adjusted between the rope adjustment device and the climber, even if the rope on the right side is taut, the climber only needs to use one hand to turn the rope lock buckle 3 counterclockwise. This increases the gap in the first channel 5 between the rope pressure block 32 and the wheel 2, gradually loosening the previously locked rope. The climber can then use their other hand to appropriately control the rope on the left side. The rope on the right side will naturally lengthen due to gravity, and the other hand can then appropriately control the left rope until the right rope is adjusted to the desired length. Once the rope is adjusted to the desired length, release the hand controlling the rope lock buckle 3. The rope lock buckle 3 will then engage with the wheel 2 to lock the rope, thus completing the rope length adjustment. To shorten the right rope, simply pull the left rope. Pulling the left rope will naturally cause the rope lock buckle 3 to rotate counterclockwise relative to the wheel 2, loosening the rope and allowing the right rope to be shortened to the desired length.

[0030] The rope adjustment device of this utility model is not limited to the above-mentioned application scenarios. The above scenario description is only for the purpose of understanding the working principle of this adjustment device.

[0031] This utility model discloses a rope adjustment device that can adjust the rope length when the rope is taut, allowing climbers to adjust the rope length more conveniently and flexibly according to actual needs during the climbing process.

[0032] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

[0033] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A line adjustment device, characterized by: It includes a shaft, a wheel mounted on the shaft, a rope lock, and a lifting lug; the wheel and the shaft are eccentrically connected, the rope lock is rotatably mounted on the shaft, and a first channel is provided between the rope lock and the wheel.

2. The line adjustment device of claim 1, wherein: The rope locking buckle includes a front connecting plate, a rear connecting plate, and a rope pressing block. The front connecting plate and the rear connecting plate are rotatably mounted on the shaft. The rope pressing block is located between the front connecting plate and the rear connecting plate, and the rope pressing block and the wheel form the first channel.

3. The leash adjustment device of claim 2, wherein: The wheel is restricted from circumferential rotation on the axle.

4. The leash adjustment device of claim 3, wherein: An anti-rotation plane is provided on the surface of the axle, and a square hole adapted to the cross-sectional shape and size of the axle is provided on the wheel body. The square hole is offset from the wheel center, and the axle passes through the square hole.

5. The leash adjustment device of claim 2, wherein: The front connecting plate and the rear connecting plate are located on both sides of the wheel body, respectively.

6. The leash adjustment device of claim 5, wherein: A toggle part is provided between the front connecting plate and the rear connecting plate corresponding to the rope pressing block. The wheel is located between the rope pressing block and the toggle part, and a second channel is provided between the toggle part and the wheel.

7. The leash adjustment device of claim 6, wherein: The outer surfaces of the rope pressing block and the actuating part are provided with concave and convex anti-slip textures.

8. The leash adjustment device of claim 1, wherein: The lifting lug includes a connecting body and a lifting hole provided on the connecting body, and the lower end of the connecting body is connected to the shaft.