Variable diameter non-slip cleat

Abstract

The present application relates to the technical field of climbing anti-skid shoe buckles, and specifically discloses a variable-diameter anti-skid shoe buckle, which comprises a first buckle body and a second buckle body, the first buckle body and the second buckle body are both in arc-shaped structures, and the second buckle body is in telescopic and adjustable connection with the first buckle body; the end of the first buckle body is provided with a telescopic foot pedal assembly; the second buckle body is provided with a plurality of pressing blocks; the telescopic foot pedal assembly comprises a sliding seat and a foot pedal, the foot pedal is movably arranged in the sliding seat in up-down orientation; the foot pedal is connected with the pressing blocks through a traction device; downward displacement of the foot pedal drives the pressing blocks to stretch in the inboard orientation of the second buckle body, thereby realizing extrusion of the pressing blocks on a climbing object. The present application has the advantages of good anti-skid effect, high safety factor, good reliability and the like.

Description

Technical Field

[0001] This invention relates to the field of climbing anti-slip foot buckle technology, specifically to a variable diameter anti-slip foot buckle. Background Technology

[0002] Foot straps, also known as climbing safety foot straps, are an irreplaceable tool for pole climbing in the power industry. Current foot straps work by leveraging the user's weight to secure one end to the pole, generating significant friction and facilitating climbing. However, in practice, several problems exist: In rainy southern regions, poles are prone to moss growth, and in frosty weather, the pole surface becomes slippery with frost or a thin layer of ice. The rubber on existing foot straps hardens in low temperatures, increasing the risk of slippage and falls during climbing or working at heights. Therefore, the safety and reliability of existing foot straps are compromised after rain, when poles are covered in moss, or when frost or ice accumulates on the pole surface. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a variable diameter anti-slip foot buckle that can solve problems related to anti-slip and safety under the aforementioned environmental conditions.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A variable-diameter anti-slip foot catch includes a first catch body and a second catch body, both of which have an arc-shaped structure. The second catch body is telescopically adjustable to the first catch body. A telescopic foot pedal assembly is provided at the end of the first catch body. Several clamping blocks are provided on the second catch body. The telescopic foot pedal assembly includes a slide and a foot pedal. The foot pedal is movably disposed in the slide along the vertical direction. The foot pedal is connected to the clamping blocks through a traction device. When the foot pedal moves downward, it causes the clamping blocks to extend inward toward the inner side of the second catch body, thereby achieving the compression of the climbing object by the clamping blocks.

[0006] Optionally, the slide is inclined in the inward and outward directions.

[0007] Optionally, the traction device is a rope.

[0008] Optionally, the clamping block is rotatably mounted on the second buckle body. The foot pedal is displaced downwards, driving the clamping block to rotate via a traction device, and causing the clamping block to extend towards the inner side of the second buckle body.

[0009] Optionally, the rope is connected to the inner end of the clamping block, and the clamping block is rotated by pulling the rope.

[0010] Optionally, the slide includes a left slide and a right slide, each with a slide groove, and a sliding crossbar slidably disposed between the two slide grooves; the outer end of the sliding crossbar is provided with the foot pedal, and the inner end is provided with a pressure rod.

[0011] Optionally, a friction block may be movably provided on the inner end of the pressure rod.

[0012] Optionally, a number of insertion holes are provided on the two slides, and a limit rod can be detachably provided on the insertion holes.

[0013] Optionally, when the sliding crossbar is at its highest position on the slide block, in a top view, the inner end of the pressure rod protrudes from the lower end of the slide block.

[0014] Optionally, the end of the clamping block is provided with a friction layer.

[0015] The beneficial effects of this invention are:

[0016] In use, the foot buckle of this invention is fitted onto the pole. Following a slight tilt similar to conventional foot buckles (the principle differs; in actual use, the tilt angle of this device can be smaller than that of traditional foot buckles), the user's weight causes the sliding crossbar to move downwards. This, in turn, drives several clamping blocks to extend towards the pole via a rope, compressing the pole. Simultaneously, as the foot buckle's pressure bar moves downwards, it also moves towards the pole, compressing it. Furthermore, the friction block of the pressure bar and the clamping blocks compress the pole from both the front and rear sides. Compared to traditional foot buckles, the advantage lies in the higher pressure at the contact point achieved through the compression of the pole by the friction block and clamping blocks. This provides better grip after rain, when the pole is covered in moss, or when frost or thin ice accumulates on the pole's surface, significantly reducing slippage and accidents during climbing and high-altitude operations, thus improving outdoor work safety. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a top view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the telescopic foot pedal assembly of the present invention;

[0020] Figure 3 This is a partial transverse sectional view of the clamping block area of ​​the present invention;

[0021] Figure 4 This is a partial longitudinal sectional view of the clamping block area of ​​the present invention;

[0022] Figure 5 This is a schematic diagram showing the distribution of frictional force between the user and the pole during the climbing process using this invention;

[0023] Figure 6 This is a schematic diagram showing the distribution of friction between the existing foot straps and the pole during climbing. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0026] like Figures 1-6 As shown, a variable diameter anti-slip foot buckle includes a first buckle body 1 and a second buckle body 4. Both the first buckle body 1 and the second buckle body 4 have an arc-shaped structure. The second buckle body 4 is telescopically adjustable to the first buckle body 1 to accommodate poles of different diameters to be climbed. A telescopic foot pedal assembly is provided at the end of the first buckle body 1. Several clamping blocks 3 are provided on the second buckle body 4.

[0027] The telescopic foot pedal assembly includes a slide 9 and a foot pedal 5, wherein the foot pedal 5 is movably disposed within the slide 9 along its vertical direction; in this embodiment, the following preferred solution is preferred:

[0028] The slide includes a left slide and a right slide, such as Figure 2 As shown, the left and right sliding blocks are respectively provided with sliding grooves, and a sliding crossbar 6 is slidably arranged between the two sliding grooves; then, sliding connecting blocks are respectively provided at the left and right ends of the sliding crossbar 6, and the sliding crossbar 6 can be freely moved up and down by the sliding connecting blocks engaging with the sliding grooves; the foot pedal 5 is connected to the outer end of the sliding crossbar 6 through the first connecting rod 10, and a pressure rod 8 is connected to the inner end of the sliding crossbar 6. In order to improve the grip and friction, in this embodiment, a friction block 7 can also be rotatably connected to the inner end of the pressure rod 8 through a rotating shaft 14; in some embodiments, a friction layer 15 is provided on the inner end face of the friction block 7. In order to improve the smoothness of the foot lifting operation during the climbing process, in this embodiment, such as Figures 1-2As shown, several insertion holes 6-2 are correspondingly provided on the two sliding grooves. A limiting rod 11 is detachably provided on each insertion hole 6-2. The limiting rod 11 can be made of bolt. When fixing after insertion, a nut is provided at one end to lock it. The function of this design is as follows:

[0029] When in use, the limiting rod 11 is inserted into the appropriate position and fixed at the beginning. This allows the technician to promptly limit the upper end of the sliding crossbar 6 during the climbing process, ensuring the smoothness of the climbing and foot-lifting operation.

[0030] Optional, such as Figure 1 As shown, when the sliding crossbar 6 is at its highest position on the slide block 9, in the top view, the inner end of the pressure rod 8 protrudes from the lower end of the slide block 9. This design aims to ensure that the pressure rod 8 can smoothly contact the rod body during use.

[0031] The foot pedal 5 is connected to the clamping block 3 via a traction device. The downward displacement of the foot pedal 5 causes the clamping block 3 to extend inwards towards the second buckle, thereby compressing the climbing object, such as the pole 20, by the clamping block 3. In this embodiment, the traction device is a rope 14. To improve durability, a steel wire rope is preferred. Specifically, a diameter of 2.5mm or more is preferred, based on the standard adult weight. For example, a 7*7 stainless steel wire rope with a diameter of 2.5mm can reasonably bear a weight of approximately 90kg.

[0032] Optional, such as Figure 2 As shown, the slide block 9 is inclined in the inner and outer directions and is connected and fixed to the first buckle body 1 by the upper reinforcing plate 12 and the lower reinforcing plate 13. The purpose of this design is to enable the pressure rod 8 to move inward, i.e., towards the rod body 20, during the downward movement after the foot is stepped on, thereby gradually increasing the pressure applied by the friction block 7 to the rod body 20.

[0033] Optionally, the clamping block 3 is rotatably mounted on the second buckle body 4. In this embodiment, the following scheme is adopted: Figure 3As shown, the top view of the clamping block 3 is similar to the top view of the cam. The clamping block 3 has a shaft hole in its center and is fixed to the second buckle body 4 via a rotating shaft 16. An opening 19 is provided on the inner ring side of the second buckle body 4, through which the protruding part of the clamping block 3 protrudes and can swing freely. In some instances, a return spring (not shown) can also be provided on the rotating shaft 16 to reset the rotating clamping block 3. The rope 14 is connected to the inner end of the clamping block 3. The connection can be made as follows: an arc-shaped through hole is horizontally provided on the inner end of the clamping block 3, and the rope 14 passes through the arc-shaped through hole. A limit block 18 is provided at the rear end of the arc-shaped through hole. The limit block 18 is tightly connected to the rope 14, causing the clamping block 3 to rotate when the rope 14 is pulled forward. Figure 2 As shown, the end of the rope 14 passes through the lower opening 15 of the first buckle body 1 and is connected to the sliding crossbar 6. As the sliding crossbar 6 moves, it causes the rope 14 to move, thereby pulling the clamping block 3 to rotate.

[0034] To reduce slippage after rain, when the pole is covered in moss, or when there is frost or thin ice on the pole's surface, this embodiment, such as Figure 4 As shown, the contact part of the clamping block 3 is provided with scraping teeth 17 to improve the scraping effect on frost or ice surfaces.

[0035] The advantages of this scheme are: (1) In actual operation, the tension of the rope 14 is relatively large, and the force on the clamping block 3 is also relatively large. The structure has good reliability and long service life. (2) The inner cavity space of the second buckle 4 is limited. Compared with the scheme of knotting the steel wire rope and the clamping block 3, this structure occupies less space and has better smoothness in actual use.

[0036] In use, the extension and retraction of the first buckle 1 and the second buckle 4 are adjusted according to the diameter of the pole 20 to be climbed. When extended, the rope 14 pulls up the sliding crossbar 6. During processing and setting, the maximum adjustment of the first buckle 1 and the second buckle 4 is matched with the movable stroke of the sliding crossbar 6. After adjusting the extension and retraction of the first buckle 1 and the second buckle 4, they are tightened by the locking block 2. At the same time, the limiting rod 11 is inserted and fixed to the upper end of the sliding crossbar 6 to limit its movement. At this time, the foot buckle of the present invention is fitted onto the pole 20, allowing climbing to proceed smoothly. During the process, the human body applies gravity to the sliding crossbar 6, causing the sliding crossbar 6 to shift downwards (the displacement amplitude is the rotation amplitude of the clamping block 3 during the clamping process of the rod 20; that is, since the extension and retraction of the first buckle 1 and the second buckle 4 have been adjusted according to the diameter of the rod 20 in the early stage, the displacement amplitude will not be large at this time). This, in turn, causes the friction block 7 to apply pressure to the rod 20. At the same time, under the traction of the rope 14, several clamping blocks 3 rotate, and together with the friction block 7, clamp the rod 20 from both front and rear positions. The clamping pressure on the rod 20 is as follows: Figure 5 As shown, several of the clamping blocks 3 are pulled by ropes 14 to form an F1' perpendicular to the rod 20. 压 The friction block 7 is arranged in an F2' shape perpendicular to the rod 20. 压 And F1` 压 and F2` 压 The force comes directly from the body's gravity. Using existing foot straps... Figure 6 The analysis shows that, under the influence of human weight, the existing buckle body tilts and rises along the front-to-back direction, exerting a 20-component force F1 on the rod body. 压 and F2 压 Therefore, it is easy to derive |F1` 压 +|F2` 压 |greater than|F1 压 F2 压 In particular, the clamping blocks 3 of the present invention can scrape the ice surface of the rod 20 during rotation, and the force is distributed among the clamping blocks 3. 压 It is converted to a point on the clamping block 3, while using the traditional foot buckle F1. 压 It is a pressure on a force-bearing surface. Therefore, the present invention can achieve better grip, better anti-slip effect, and is safer and more reliable to use.

Claims

1. A variable diameter anti-slip foot buckle, characterized in that: The device includes a first buckle and a second buckle, both of which are arc-shaped. The second buckle is telescopically adjustable to the first buckle. A telescopic foot pedal assembly is provided at the end of the first buckle. Several clamping blocks are provided on the second buckle. The telescopic foot pedal assembly includes a slide and a foot pedal. The foot pedal is movable in the slide along the vertical direction. The foot pedal is connected to the clamping blocks through a traction device. When the foot pedal moves downward, it causes the clamping blocks to extend inward toward the inside of the second buckle, thereby squeezing the climbing object with the clamping blocks. The slide includes a left slide and a right slide, each with a slide groove, and a sliding crossbar is slidably disposed between the two slide grooves; the outer end of the sliding crossbar is provided with the foot pedal, and the inner end is provided with a pressure rod.

2. The variable diameter anti-slip foot buckle according to claim 1, characterized in that: The slide block is inclined in both the inner and outer directions.

3. The variable diameter anti-slip foot buckle according to claim 1, characterized in that: The traction device is a rope.

4. The variable diameter anti-slip foot buckle according to claim 3, characterized in that: The clamping block is rotatably mounted on the second buckle body. The foot pedal moves downward, driving the clamping block to rotate via a traction device, and causing the clamping block to extend towards the inner side of the second buckle body.

5. The variable diameter anti-slip foot buckle according to claim 4, characterized in that: The rope is connected to the inner end of the clamping block, and the clamping block rotates by pulling the rope.

6. The variable diameter anti-slip foot buckle according to claim 1, characterized in that: A friction block is movably provided on the inner end of the pressure rod.

7. The variable diameter anti-slip foot buckle according to claim 1, characterized in that: The two slides are provided with a number of insertion holes, and the insertion holes are detachably provided with limit rods.

8. The variable diameter anti-slip foot buckle according to claim 1, characterized in that: When the sliding crossbar is at its highest position on the slide block, in a top view, the inner end of the pressure rod protrudes from the lower end of the slide block.

9. A variable diameter anti-slip foot buckle according to claim 1, characterized in that: The end of the clamping block is provided with a friction layer.

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