Support rope quick locking and unloading buckle of inner suspension holding pole

Abstract

This utility model relates to the field of internal suspension pole support rope technology, and discloses a quick-locking shackle for the support rope of an internal suspension pole, including a U-shaped shackle and a pin. One end of the pin is provided with an operating handle; an axially movable push rod is provided inside the pin; at the end away from the operating handle, a radially movable limiting telescopic mechanism is provided inside, which can extend to the outside of the pin; the limiting telescopic mechanism includes at least one baffle, and the baffle has an inclined surface on the side facing the center of the pin that cooperates with the push rod; one end of the push rod extends to the outside of the handle, and the other end cooperates with the inclined surface of the baffle. When the push rod moves inward toward the pin, the limiting telescopic mechanism moves radially toward the pin. This utility model features one-button mechanical self-locking and vibration anti-loosening, solving the problems of easy loosening of traditional threaded connections and cumbersome cotter pin installation.

Description

Technical Field

[0001] This utility model relates to the field of internal suspension pole support rope technology, specifically a quick-locking and unhooking buckle for the support rope of an internal suspension pole. Background Technology

[0002] As a key connecting component in lifting operations, the reliability of U-shaped shackles directly affects the safety of the entire lifting system. Traditional U-shaped shackles achieve their load-bearing function through a mechanical connection between a pin and the shackle body. This structure has been used in various engineering fields for decades and is characterized by its simple structure and high load-bearing capacity, making it an indispensable basic component in current lifting operations.

[0003] However, the existing pin-fixing method of U-shaped shackles has obvious defects. When using threaded connections, loosening is prone to occur under long-term vibration, requiring regular checks and tightening; while using anti-loosening devices such as cotter pins is cumbersome to install and inconvenient to disassemble. Especially in special working environments such as high altitudes and the field, the existing structure cannot simultaneously achieve both anti-loosening performance and ease of operation, posing potential hazards to construction safety. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-locking shackle for the supporting rope of an internally suspended pole, featuring one-button mechanical self-locking and vibration-resistant anti-loosening, thus solving the problems of easy loosening of traditional threaded connections and cumbersome cotter pin installation.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned one-button mechanical self-locking and vibration-induced loosening objectives, this utility model provides the following technical solution: a quick-locking shackle for the supporting rope of an internally suspended support rod, comprising a U-shaped shackle and a pin, wherein the U-shaped shackle and the pin are connected by a thread, and one end of the pin is provided with an operating handle; the pin has an axially movable push rod inside; at the end away from the operating handle, a radially movable limiting telescopic mechanism is provided inside, which can extend to the outside of the pin; the limiting telescopic mechanism includes at least one baffle, and the baffle has an inclined surface on the side facing the center of the pin that cooperates with the push rod; one end of the push rod extends to the outside of the handle, and the other end cooperates with the inclined surface of the baffle; when the push rod moves inward toward the pin, the limiting telescopic mechanism moves radially toward the pin.

[0008] Preferably, the baffle is trapezoidal at one end inside the pin, and the baffle is connected to the inside of the pin by a spring.

[0009] Preferably, the baffle is a trapezoidal structure at one end inside the pin, and the two symmetrically distributed baffles are connected by a spring, which is fixedly connected to the inside of the pin.

[0010] Preferably, a limit mechanism is provided at one end of the operating handle.

[0011] Preferably, the push rod is provided with a locking block on the outer part of the handle, and the handle has an axial channel and an annular limiting groove that match the locking block. When the push rod is pressed into the pin, the locking block enters the handle along the axial channel. When the end of the push rod reaches the inclined surface of the baffle, the locking block simultaneously reaches the annular limiting groove. After the push rod rotates, it loses its degree of freedom of movement inside the pin.

[0012] Preferably, there are two annular limiting grooves. When the pin is not installed, the locking block is located inside the annular limiting groove near the outside of the handle.

[0013] Preferably, the handle and the pin are an integral structure.

[0014] Preferably, the outer surface of the baffle facing the U-shaped shackle is provided with anti-slip texture.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a quick-locking and detaching buckle for the supporting rope of an internally suspended pole, which has the following beneficial effects:

[0017] 1. This type of quick-locking shackle for the support rope of an internally suspended jib features a channel inside the operating handle, which is integrally fixed to the pin, leading to the pin's interior. A push rod and a limiting telescopic mechanism are installed inside. After the pin is rotated and fixed inside the U-shaped shackle, the user can press the push rod. The bottom of the push rod contacts the inclined surface, pushing the baffle to the outside of the pin. In actual use, by calculating the dimensions of the pin and the U-shaped shackle, the baffle can be positioned precisely against the U-shaped shackle, preventing the threads between the pin and the shackle from loosening due to vibration during operation. Compared to existing technologies that rely solely on threaded fastening or additional cotter pins, this solution fundamentally solves the problem of loosening in vibration environments by forming a rigid limit with the inner wall of the U-shaped shackle after the baffle extends. It also avoids the cumbersome installation associated with external anti-loosening parts. This design retains the high load-bearing advantage of threaded connections while significantly improving anti-loosening reliability through a mechanical self-locking mechanism, making it particularly suitable for harsh working environments such as high-altitude and outdoor locations.

[0018] 2. This type of quick-locking shackle for the support rope of an internally suspended jib utilizes an axial channel and two annular limiting grooves of different heights inside the operating handle. Combined with a locking block on the push rod, this allows for locking the push rod in different states, ensuring greater structural stability. Simultaneously, the baffles are connected to the pin shaft or symmetrical baffles via springs, enabling automatic retraction of the baffles after the push rod is removed, ensuring multiple uses of the U-shaped shackle. The carefully designed axial channel and dual-height annular limiting grooves inside the operating handle, along with the precise positioning of the push rod locking block, allow for reliable switching between installation, locking, and unlocking states, ensuring structural stability at each working stage. A unique spring reset mechanism allows the baffles to automatically retract after the push rod is withdrawn, solving the problem of difficult disassembly of traditional anti-loosening devices and enabling rapid reuse of the shackle. This intelligent mechanical linkage design retains the original load-bearing capacity of the U-shaped shackle while perfectly overcoming the shortcomings of existing anti-loosening devices, such as easy failure and cumbersome operation, through the built-in self-locking and reset mechanism, providing a safer and more convenient connection solution for heavy-duty high-altitude operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0020] Figure 2 This is a schematic diagram of the complete structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the complete structure of this utility model;

[0022] Figure 4 This is an enlarged cross-sectional view of the baffle section of this utility model when it is extended.

[0023] Figure 5 This is an enlarged cross-sectional view of the baffle of this utility model when it is not extended;

[0024] Figure 6 This is an enlarged cross-sectional view of the extension in another embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the baffle structure of this utility model.

[0026] In the picture:

[0027] 1. U-shaped shackle;

[0028] 2. Pin;

[0029] 3. Limiting telescopic mechanism; 31. Baffle plate; 311. Inclined surface; 312. Anti-slip texture; 32. Spring;

[0030] 4. Push rod; 41. Locking block;

[0031] 5. Operating handle; 51. Axial channel; 52. Annular limiting groove

[0032] 6. Limiting mechanism. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 A quick-locking shackle for the support rope of an internally suspended support pole includes a U-shaped shackle 1 and a pin 2. The U-shaped shackle 1 and the pin 2 are connected by threads. One end of the pin 2 is provided with an operating handle 5 for turning the pin 2 to facilitate the connection between the pin 2 and the U-shaped shackle 1. The pin 2 has an axially movable push rod 4 inside, which can be pressed by the user from the outside to move it into the pin 2. The end of the pin 2 away from the operating handle 5 has a radially movable limiting telescopic mechanism 3 inside. The limiting telescopic mechanism 3 can extend to the outside of the pin 2. When the push rod 4 is not pushed, the telescopic mechanism is inside the pin 2 and does not affect the movement of the pin 2 inside the U-shaped shackle 1. The limiting telescopic mechanism 3 includes at least one baffle 31. The baffle 31 has an inclined surface 3 on the side facing the center of the pin 2 that cooperates with the push rod 4. 11; One end of the push rod 4 extends to the outside of the handle, and the other end engages with the inclined surface 311 of the baffle 31. When the push rod 4 moves inward toward the pin 2, it pushes the inclined surface 311, causing the limiting telescopic mechanism 3 to move radially toward the pin 2 and extend to the outside of the pin 2. In actual use, by calculating the dimensions of the pin 2 and the U-shaped shackle 1, it is possible to ensure that the baffle 31 is positioned precisely against the U-shaped shackle 1, preventing the U-shaped shackle 1 from vibrating during operation and causing the threads between the pin 2 and the shackle to loosen. Compared to existing technologies that rely solely on threaded fastening or additional cotter pins, this solution fundamentally solves the problem of traditional structures being prone to loosening under vibration by forming a rigid limit with the inner wall of the U-shaped shackle 1 after the baffle 31 extends out. It also avoids the cumbersome installation caused by adding external anti-loosening parts. This design retains the high load-bearing advantage of threaded connections and significantly improves the reliability of anti-loosening through a mechanical self-locking mechanism, making it particularly suitable for harsh working environments such as high altitudes and outdoor locations.

[0035] Please see Figures 4-5 The baffle 31 has a trapezoidal structure at one end inside the pin 2. There is only one baffle 31, and it is connected to the inside of the pin 2 through the spring 32 to ensure that when the push rod 4 leaves the inclined plane 311, the baffle 31 can return to its original position through the spring 32.

[0036] Please see Figure 6 In another embodiment of the present invention, the baffle 31 is also trapezoidal in one end inside the pin 2, but there are no less than two baffles 31. The two symmetrically distributed baffles 31 are connected by a spring 32. The spring 32 is fixedly connected to the inside of the pin 2 to ensure that when the push rod 4 leaves the inclined surface 311, the baffle 31 can return to its original position by the spring 32.

[0037] Please see Figures 1-3 The push rod 4 has a locking block 41 on the outer part of the handle. The handle has an axial channel 51 and an annular limiting groove that match the locking block 41. When the push rod 4 is pressed into the pin 2, the locking block 41 enters the handle along the axial channel 51. When the end of the push rod 4 reaches the inclined surface 311 of the baffle 31, the locking block 41 simultaneously reaches the annular limiting groove. After the push rod 4 rotates, it loses its freedom of movement inside the pin 2. Through the carefully designed axial channel 51 and the double-height annular limiting groove 52 inside the operating handle 5, and the precise locking of the locking block 41 of the push rod 4, reliable switching between the three states of installation, locking, and unlocking is achieved, ensuring the structural stability of each working stage. In actual use, there can be two annular limiting grooves. The two annular limiting grooves 52 of different heights, together with the locking block 41 on the push rod 4, can lock the push rod 4 in different states, ensuring a more stable structure. When the pin 2 is not installed, the locking block 41 is located inside the annular limiting groove near the outer side of the handle.

[0038] Please see Figures 1-7 The handle and pin 2 are integrated into one structure, which facilitates the opening of the channel for the push rod 4 to pass through, and the structure is more stable. The outer surface of the baffle 31 facing the U-shaped shackle 1 is provided with anti-slip texture 312, which increases the friction between the baffle 31 and the U-shaped shackle 1. One end of the operating handle 5 is provided with a limiting mechanism 6, which can more easily limit the depth position of the pin 2 inside the U-shaped shackle 1, and is easier to cooperate with the limiting telescopic mechanism 3.

[0039] In use: First, insert the U-shaped shackle 1 body into the support rope pull ring and align it with the pin hole. Rotate the operating handle 5 to tighten the pin 2 via the thread. After it is in place, press the push rod 4. Its inclined surface 311 mechanism pushes the baffle 31 to extend radially and fit tightly against the inner wall of the U-shaped shackle 1 to form a mechanical limit. Continue to press and rotate the push rod 4 so that the locking block 41 is engaged in the annular limit groove 52 to complete the locking. To disassemble, rotate the push rod 4 in the opposite direction to release the locking block 41. The spring 32 automatically retracts the baffle 31. Rotate the handle in the opposite direction to remove the pin 2. The whole process can be completed with a simple "rotate-press-rotate" operation. No additional tools are required and it can be operated with one hand. The automatic retraction design of the baffle 31 ensures reusability, and the multi-level limit mechanism 6 ensures the reliability of the transition between various working states. It is particularly suitable for the stringent requirements of convenience and safety in high-altitude working environments.

[0040] In summary, this utility model's quick-locking shackle for supporting ropes adopts an innovative mechanical linkage design. By setting a push rod 4 channel and a multi-stage limiting mechanism 6 inside the integrated operating handle 5 of the pin shaft 2, it achieves intelligent operation of "rotation tightening - press locking - automatic retraction". When the pin shaft 2 is tightened, the press push rod 4 can precisely push the baffle 31 to a position close to the inner wall of the U-shaped shackle 1 through the inclined surface 311 mechanism, forming a rigid limit and effectively preventing loosening of the threads due to vibration. The unique double-height annular limiting groove 52 cooperates with the locking block 41 to ensure reliable switching between the three states of installation, locking, and unlocking. The baffle 31 is connected by a spring 32 to achieve automatic retraction, which not only retains the high load-bearing performance of the threaded connection, but also solves the problems of cumbersome installation and difficult disassembly of traditional anti-loosening devices. This integrated design perfectly overcomes the defects of existing technologies that rely solely on threads or cotter pins. Through the built-in self-locking and reset mechanism, it provides a safer and more convenient connection solution for heavy-duty operations in harsh environments such as high altitudes and the field.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick locking and unloading buckle for a supporting rope of an inner-suspension pole, comprising a U-shaped unloading buckle (1) and a pin shaft (2), the U-shaped unloading buckle (1) and the pin shaft (2) are connected through threads, one end of the pin shaft (2) is provided with an operation handle (5), characterized in that: The pin (2) is provided with an axially movable push rod (4) inside; at one end away from the operating handle (5), a radially movable limiting telescopic mechanism (3) is provided inside, which can extend to the outside of the pin (2); the limiting telescopic mechanism (3) includes at least one baffle (31), and the baffle (31) has an inclined surface (311) that cooperates with the push rod (4) on the side facing the center of the pin (2); one end of the push rod (4) extends to the outside of the handle, and the other end cooperates with the inclined surface (311) of the baffle (31). When the push rod (4) moves into the pin (2), the limiting telescopic mechanism (3) moves radially toward the pin (2). ​ 2. The quick-locking shackle for the supporting rope of an internally suspended pole according to claim 1, characterized in that: The baffle (31) has a trapezoidal structure at one end inside the pin (2), and the baffle (31) is connected to the inside of the pin (2) by a spring (32).

3. The quick-locking shackle for the supporting rope of an internally suspended pole according to claim 1, characterized in that: The baffle (31) has a trapezoidal structure at one end inside the pin (2). The two baffles (31) are symmetrically distributed and connected by a spring (32). The spring (32) is fixedly connected to the inside of the pin (2).

4. A quick-locking shackle for the supporting rope of an internally suspended pole according to any one of claims 1-3, characterized in that: One end of the operating handle (5) is provided with a limit mechanism (6).

5. A quick-locking shackle for the supporting rope of an internally suspended pole according to any one of claims 1-3, characterized in that: The push rod (4) is provided with a locking block (41) on the outer part of the handle. The handle is provided with an axial channel (51) and an annular limiting groove that match the locking block (41). When the push rod (4) is pressed into the pin (2), the locking block (41) enters the handle along the axial channel (51). When the end of the push rod (4) reaches the inclined surface (311) of the baffle (31), the locking block (41) simultaneously reaches the annular limiting groove. After the push rod (4) rotates, it loses its freedom of movement inside the pin (2).

6. The quick-locking shackle for the supporting rope of an internally suspended pole according to claim 5, characterized in that: There are two annular limiting grooves. When the pin (2) is not installed, the locking block (41) is located inside the annular limiting groove near the outside of the handle.

7. The quick-locking shackle for the supporting rope of an internally suspended pole according to claim 1, characterized in that: The handle and the pin (2) are an integral structure.

8. The quick-locking shackle for the supporting rope of an internally suspended pole according to claim 1, characterized in that: The outer surface of the baffle (31) facing the U-shaped shackle (1) is provided with anti-slip texture (312).

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