Anti-falling uninterrupted main lock

Abstract

The utility model provides a kind of anti-falling uninterrupted main lock, belong to uninterrupted main lock technical field, including C type fixed ring and spring pin, the spring pin can be movably installed on C type fixed ring, the spring pin is composed of pin barrel, spring and pin shaft, the spring is set in pin barrel, the pin shaft one end extends into pin barrel and abuts spring, the pin shaft other end inserts the mounting hole of C type fixed ring, the pin shaft is composed of one different size cylinder, form ladder shape, and the transition part between large cylinder and size cylinder is located in pin barrel. By adopting spring pin structure, and setting positioning block on the small cylinder of pin shaft, the spring force is used to make pin shaft tightly abut in the mounting hole of C type fixed ring, effectively prevent the pin from loosening and falling due to safety rope friction or external force, ensure the reliability of main lock in use.

Description

Technical Field

[0001] This utility model belongs to the field of uninterrupted main lock technology, specifically relating to an anti-fall-off uninterrupted main lock. Background Technology

[0002] In fields such as construction and outdoor sports, the reliability of various mechanical equipment, safety devices, and connecting components directly affects the safety of personnel and the smooth progress of operations. In scenarios such as high-altitude operations and rock climbing, continuous locking carabiners, as key connecting components, play a crucial role. However, conventional continuous locking carabiners on the market have revealed numerous problems in practical applications that urgently need to be addressed. First, friction is inevitable during use, and this friction causes continuous wear on the pin, gradually loosening the fit between the pin and the C-ring, significantly increasing the risk of the pin detaching from the C-ring. Once detached, not only will the safety rope lose its anchoring function, but it may also lead to serious accidents, causing personal injury and property damage. Second, most existing continuous locking carabiners lack effective anti-detachment designs. Under external impact, vibration, or after prolonged use, the connection stability between the pin and the ring is difficult to guarantee, failing to meet the requirements of high reliability and high safety. These problems severely restrict the widespread use of locking carabiners in high-safety, high-reliability application scenarios. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an anti-fall-off continuous main lock, which aims to solve the problem that the pin of the continuous main lock is easily detached from the C-shaped fixing ring due to the friction of the safety rope, which poses a safety hazard.

[0004] The technical solution adopted by this utility model is as follows: an anti-fall-off uninterrupted main lock, including a C-shaped fixing ring and a spring pin. The spring pin is movably installed on the C-shaped fixing ring. The spring pin is composed of a pin cylinder, a spring and a pin shaft. The spring is set inside the pin cylinder. One end of the pin shaft extends into the pin cylinder and abuts against the spring. The other end of the pin shaft is inserted into the mounting hole of the C-shaped fixing ring.

[0005] As a preferred embodiment of this utility model, the pin is composed of two cylinders of different diameters, forming a stepped shape. The transition part between the large cylinder and the small cylinder is located inside the pin cylinder. The large cylinder is slidable inside the pin cylinder and has a diameter larger than the small cylinder. The diameter of the pin cylinder is reduced by a diameter reduction device to prevent the pin from escaping from the pin cylinder, while not affecting the free movement of the pin within the pin cylinder.

[0006] As a preferred embodiment of this utility model, the C-shaped fixing ring has two sets of mounting holes. One set of mounting holes is for inserting the protruding end of the pin cylinder, and the other set of mounting holes is for inserting the small cylinder of the pin shaft and is arranged through the C-shaped fixing ring.

[0007] As a preferred embodiment of this utility model, a positioning block extends circumferentially from the small cylinder of the pin. The diameter of the positioning block is larger than the diameter of the mounting hole of the C-shaped fixing ring and abuts against the edge of the mounting hole opening.

[0008] The advantages of this invention compared to existing technologies are as follows: By employing a spring pin structure and setting a positioning block on the small cylinder of the pin, the spring force ensures that the pin is tightly abutted against the mounting hole of the C-shaped fixing ring. This effectively prevents the pin from loosening and falling off due to friction from the safety rope or external forces, ensuring the reliability of the main lock during use and greatly reducing safety hazards caused by pin detachment. This provides a more robust safety guarantee for dangerous activities such as high-altitude operations and rock climbing. Secondly, the structural design of this invention is more rational. The combination of the stepped structure of the pin and the positioning block not only enhances the stability of the connection but also allows it to withstand greater loads and impacts, adapting to various complex working conditions and harsh environments, thus expanding the application range of the main lock. Furthermore, it has excellent detachability. Although it has a strong anti-fall-off function, when it needs to be disassembled, simply insert a metal rod through the C-shaped fixing ring through the mounting hole, and then press the small cylinder of the pin. Through the leverage of the metal rod or by pressing directly, the spring is compressed and the pin is retracted into the pin cylinder, and the C-shaped fixing ring through the mounting hole can be easily pulled out. This facilitates the maintenance, replacement or adjustment of the main lock and improves the maintenance efficiency of the equipment. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0010] Figure 1 This is a cross-sectional view of the present invention;

[0011] Figure 2 This is a cross-sectional view of the spring pin of this utility model;

[0012] Figure 3 This is a structural diagram of the pin shaft of this utility model.

[0013] Figure 4 This is a structural diagram of the pin cylinder of this utility model.

[0014] In the diagram: 1. C-shaped retaining ring; 2. Spring pin; 201. Pin cylinder; 202. Pin shaft; 203. Spring; 202a. Large cylinder; 202b. Small cylinder; 202c. Positioning block. Detailed Implementation

[0015] 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.

[0016] Example 1

[0017] Please see Figures 1-3 The present invention provides the following technical solution:

[0018] An anti-fall-off uninterrupted main lock includes a C-shaped retaining ring 1 and a spring pin 2. The spring pin 2 is movably mounted on the C-shaped retaining ring 1. The spring pin 2 is composed of a pin cylinder 201, a spring 203, and a pin shaft 202. The spring 203 is disposed inside the pin cylinder 201. One end of the pin shaft 202 extends into the pin cylinder 201 and abuts against the spring 203. The other end of the pin shaft 202 is inserted into the mounting hole of the C-shaped retaining ring 1.

[0019] In a specific embodiment of this utility model, the anti-fall-off continuous main lock is mainly composed of a C-shaped fixing ring 1 and a spring pin 2. The C-shaped fixing ring 1, as the basic component, has a C-shaped structure and a mounting hole, providing a mounting position for the spring pin 2. The spring pin 2 is movably mounted on the C-shaped fixing ring 1 and consists of a pin cylinder 201, a spring 203, and a pin shaft 202. The pin cylinder 201 is hollow inside, used to accommodate part of the spring 203 and pin shaft 202. The spring 203 is located inside the pin cylinder 201 and plays a crucial elastic role. One end of the pin shaft 202 extends into the pin cylinder 201 and abuts against the spring 203, while the other end is inserted into the mounting hole of the C-shaped fixing ring 1, achieving connection with the C-shaped fixing ring 1.

[0020] Please refer to the details. Figures 1-3The pin 202 adopts a stepped structure, which is composed of cylinders of different diameters. The larger cylinder 202a has a larger diameter and fits tightly with the inside of the pin cylinder 201 to ensure the stability of the connection. The transition section between the large and small cylinders is also located within the pin cylinder 201. The large cylinder 202a, which is slidable within the pin cylinder 201, has a diameter larger than that of the small cylinder 202b. The pin cylinder 201 has a reduced diameter device to prevent the pin 202 from escaping from the pin cylinder 201, while not affecting the free movement of the pin 202 within the pin cylinder 201. This structure, to a certain extent, limits the axial movement range of the pin 202 within the pin cylinder 201, preventing the pin 202 from overextending or retracting, thereby enhancing the reliability of the entire device. The C-shaped retaining ring 1 has two sets of mounting holes. One set of mounting holes is used to insert the protruding end of the pin cylinder 201, and the other set of mounting holes is used to insert the small cylinder 202b of the pin 202. This set of mounting holes is through-hole in the C-shaped retaining ring 1. This through-hole design facilitates the smooth insertion of the small cylinder 202b of the pin 202 and also provides convenience for subsequent disassembly operations. A positioning block 202c extends annularly from the small cylindrical body 202b of the pin 202. The diameter of the positioning block 202c is larger than the diameter of the mounting hole of the C-shaped retaining ring 1. When the pin 202 is inserted into the mounting hole, the positioning block 202c can tightly abut against the edge of the opening of the mounting hole. By increasing the diameter of the pin 202 at the insertion end, the positioning block 202c forms a stop structure, effectively preventing the pin 202 from coming out of the mounting hole of the C-shaped retaining ring 1 when subjected to external force. In actual use, no matter how the safety rope rubs against the pin 202, or is subjected to external force impact from other directions, the positioning block 202c is always subjected to the rebound force of the spring 203, which ensures that it can always tightly abut against the edge of the mounting hole, ensuring that the pin 202 will not easily loosen or fall off, thereby greatly improving the safety and reliability of the main lock during use.

[0021] The working principle and usage process of this utility model are as follows: During installation, first check all components of the main lock to ensure they are undamaged. Then, fix the C-shaped retaining ring 1 in the mounting position. Next, insert the protruding end of the pin cylinder 201 into the non-through mounting hole of the C-shaped retaining ring 1. Then, align the small cylinder 202b of the pin shaft 202 with the through mounting hole of the C-shaped retaining ring 1 and insert it. At this time, the spring 203 is compressed, and the positioning block 202c on the pin shaft 202 abuts against the edge of the mounting hole to complete the installation. During use, connect one end of the load to the C-shaped retaining ring 1 and the other end to the fixing point. Pay attention to correct connection and avoid overloading. During maintenance, regularly check all components, clean dust and foreign objects, and lubricate moving parts. During disassembly, insert a metal rod along the through mounting hole of the C-shaped retaining ring 1 to press the small cylinder 202b of the pin shaft 202, compress the spring 203 to retract the pin shaft 202 into the pin cylinder 201, pull out the spring pin 2, and then loosen the fasteners to remove the C-shaped retaining ring 1. This design effectively prevents the pin 202 from falling off the C-shaped retaining ring 1, improving the safety and reliability of the main lock. It is also easy to disassemble and assemble, simple to maintain, and has a long service life, making it suitable for high-altitude operations, rock climbing, and other fields that require high-security connections.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A non-disconnecting main lock for preventing detachment, characterized in that, Includes a C-shaped retaining ring (1) and a spring pin (2). The spring pin (2) is movably mounted on the C-shaped retaining ring (1). The spring pin (2) is composed of a pin cylinder (201), a spring (203) and a pin shaft (202). The spring (203) is disposed inside the pin cylinder (201). One end of the pin shaft (202) extends into the pin cylinder (201) and abuts against the spring (203). The other end of the pin shaft (202) is inserted into the mounting hole of the C-shaped retaining ring (1).

2. The anti-fall-off uninterrupted main lock according to claim 1, characterized in that: The pin (202) is composed of cylinders of different diameters, forming a stepped shape. The transition part between the large cylinder (202a) and the small cylinder is located inside the pin cylinder (201). The large cylinder (202a) is slidable inside the pin cylinder (201) and has a diameter larger than that of the small cylinder (202b). The diameter of the pin cylinder (201) is reduced by a diameter reduction device to prevent the pin (202) from escaping from the pin cylinder (201).

3. The anti-fall-off uninterrupted main lock according to claim 1, characterized in that: The C-shaped fixing ring (1) has two sets of mounting holes. One set of mounting holes is for inserting the protruding end of the pin cylinder (201), and the other set of mounting holes is for inserting the small cylinder (202b) of the pin shaft and for penetrating the C-shaped fixing ring (1).

4. The anti-fall-off uninterrupted main lock according to claim 2, characterized in that: A positioning block (202c) extends circumferentially from the small cylinder (202b) of the pin. The diameter of the positioning block (202c) is larger than the diameter of the mounting hole of the C-shaped fixing ring (1) and abuts against the edge of the mounting hole opening.

Images