A life line for underwater rescue

Abstract

This utility model relates to the field of rescue rigging technology and discloses a rescue rigging for diving and rescue. It achieves rapid unlocking by incorporating a male-end rope, a lock nut shell, and a limiting device. First, the rotating sleeve is rotated. During rotation, the gear, driven by a toothed groove, rotates in a circular motion within the groove. As the gear rotates, the end of the sliding column, located inside the gear, falls downwards. After the threaded groove at the end of the sliding column disengages from the gear's thread constraint, the end of the sliding column is exposed at the bottom of the lock nut shell. At this point, pulling the sliding column causes it to move downwards along with the connecting rod via the inner column. As the connecting rod moves, it rotates the end of the pawl, causing the pawl to rotate and become hidden inside the lock nut shell. At this point, the locking teeth are no longer restricted and can be pulled out for demolding, achieving a rapid unlocking effect.

Description

Technical Field

[0001] This utility model relates to the field of rescue rigging technology, and in particular to a rescue rigging for diving and salvage. Background Technology

[0002] Underwater rescue refers to personnel rescue, equipment salvage, or engineering operations conducted by professionals underwater. It covers multiple fields such as emergency rescue, shipwreck salvage, and underwater exploration. Various professional equipment is required for underwater rescue operations, such as life-saving locks. Life-saving locks consist of a female lock body and a male lock tongue. They are used in conjunction with safety ropes or chains for underwater rescue operations. After the female and male ends are closed, the safety rope is pulled to retrieve objects or people.

[0003] Among existing devices, traditional devices are difficult to operate during rescue operations in complex environments. Since the unlocking devices are generally small buttons or levers, rescuers are prone to accidental activation or insufficient force when performing unlocking operations in low visibility conditions such as muddy water or at night, resulting in failure to unlock quickly. Traditional unlocking devices are mechanically linked, and may become stuck due to mud and sand, making them unable to unlock. There is no emergency unlocking device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a diving rescue rigging that is easy to unlock and has a backup unlocking mechanism, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a diving rescue lifeline, comprising a female rope and a male rope. A locking nut is fixedly installed at the end of the female rope. The male rope includes a loop, a magnetic block A, and locking teeth. The male rope has a loop at its end, a magnetic block A inside its top, and locking teeth evenly arranged in a linear array around its end. A rotating sleeve is rotatably installed on the outer ring of the locking nut, the outer ring of which has an annular anti-slip groove. A magnetic block B is evenly arranged in an annular pattern inside the bottom of the locking nut, with magnetic attraction between the magnetic block B and magnetic block A due to their opposing shapes. A limiting device is installed inside the locking nut, and a spare unlocking device is installed above the limiting device inside the locking nut.

[0006] With the above settings, the magnetic attraction between magnetic block A and magnetic block B allows for automatic alignment when the end of the male rope is close to the bottom opening of the lock nut. This, combined with the micro-flare at the bottom opening of the lock nut, guides insertion and achieves quick alignment.

[0007] Preferably, the lock nut housing has a circular groove inside, the bottom wall of the circular groove has an annular groove, the inner ring of the rotating sleeve has uniformly spaced toothed grooves, a gear is rotatably installed inside the circular groove, the gear meshes with the toothed groove, the inner ring of the gear has a thread, and symmetrical columns are arranged inside the gear, the columns are located inside the annular groove, and the shape and size of the columns and the annular groove are compatible.

[0008] With the above settings, when the rotating sleeve rotates, the gear is driven to rotate through the tooth groove. When the gear rotates inside the groove, it drives the slide column to move downward spirally by matching the thread of the outer ring at the end of the slide column. This pulls the bottom of the slide column, and the connecting rod moves downward through the inner column. The connecting rod causes the pawl to rotate inside the lock nut, no longer restricting the locking teeth, thus achieving the effect of quick unlocking.

[0009] Preferably, the limiting device includes a pawl, a ring plate, and a sliding column. The pawl is uniformly rotatably mounted in a circular shape inside the lock nut housing. A coil spring is provided between the inside of the pawl and the lock nut housing. The pawl engages with a locking tooth. The limiting device is slidably mounted inside the lock nut housing, and the ring plate is connected to the upper surface of the end of the pawl. The sliding column is symmetrically slidably mounted inside the lock nut housing. The outer ring of the end of the sliding column is provided with a threaded groove, and the threads of the outer ring of the end of the sliding column are adapted to the inner ring of the gear. An inner column is slidably mounted inside the sliding column, and a connecting rod is movably connected between the end of the inner column and the end of the pawl.

[0010] With the above-mentioned settings, the limiting device uses the threaded fit between the slide column and the gear, and by pulling the slide column, it drives the interlocking reaction between the inner column and the connecting rod, so that the end of the pawl is pulled by the connecting rod. The pawl rotates inside the lock nut, and the locking teeth are no longer restricted by the pawl, thus enabling demolding operation.

[0011] Preferably, the backup unlocking device includes a miniature hydraulic bladder and a top bar. The miniature hydraulic bladder is fixedly installed on the top of the lock nut housing. The top bar is symmetrically slidably installed inside the lock nut housing. The position of the top bar corresponds to the position of the sliding column. The bottom of the top bar is in contact with the top of the ring plate. The backup unlocking device is located inside the lock nut housing and is fixedly connected to the top bar by a spring. The upper surface of the top bar of the backup unlocking device is provided with an oil bladder, which is connected to the miniature hydraulic bladder.

[0012] Based on the above settings, by pressing the micro hydraulic bladder, the hydraulic oil inside the micro hydraulic bladder is depressurized and expands into the oil bladder. After the oil bladder is squeezed and expanded by the hydraulic oil, it squeezes the top bar. The top bar moves downward and fluctuates the ring plate, causing the pawl to rotate into the lock nut housing due to the fluctuation of the ring plate.

[0013] This utility model has the following advantages:

[0014] 1. This diving rescue lifeline achieves rapid unlocking through a structure including a male-end rope, a lock nut shell, and a limiting device. First, rotate the rotating sleeve. As the sleeve rotates, the gear inside the groove rotates in a circular motion. When the gear rotates, it causes the end of the sliding column to fall downward inside the gear. After the threaded groove at the end of the sliding column is released from the restriction of the gear thread, the end of the sliding column is exposed at the bottom of the lock nut shell. At this time, pulling the sliding column causes the connecting rod to move downward together through the inner column. When the connecting rod moves, it causes the end of the pawl to rotate, so that the pawl rotates and is hidden inside the lock nut shell. At this time, the locking teeth are no longer restricted and can be pulled out and demolded, achieving the effect of rapid unlocking.

[0015] 2. This diving rescue lifeline utilizes a structure consisting of a male-end rope, a lock nut, a miniature hydraulic bladder, a top bar, and a ring plate to achieve backup unlocking. By inserting a finger and pressing the miniature hydraulic bladder, the hydraulic oil inside is pumped into the bladder. The bladder expands rapidly downwards under the pressure of the hydraulic oil, compressing the top bar. The top bar, under pressure, first compresses the spring, and then the bottom of the top bar presses against the surface of the ring plate. This causes the pawl to rotate inside the lock nut due to the pressure from the ring plate. As the top bar continues to move downwards, the pawl rotates and contacts the locking teeth, thus achieving the effect of emergency backup unlocking. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present utility model;

[0018] Figure 3 This is a first-view schematic diagram of the internal structure of the lock nut shell of this utility model;

[0019] Figure 4 This is a second-view schematic diagram of the internal structure of the lock nut shell of this utility model.

[0020] In the diagram: 1. Female end rope; 2. Male end rope; 21. Loop; 22. Magnetic block A; 23. Clamping tooth; 3. Lock housing; 31. Rotating sleeve; 32. Magnetic block B; 33. Rotating groove; 34. Ring groove; 35. Tooth groove; 36. Gear; 4. Limiting device; 41. Pawl; 42. Ring plate; 43. Sliding column; 44. Inner column; 45. Connecting rod; 5. Backup unlocking device; 51. Miniature hydraulic bladder; 52. Top bar; 53. Spring; 54. Oil bladder. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 A diving rescue lifeline includes a female rope 1 and a male rope 2. A locking shell 3 is fixedly installed at the end of the female rope 1. The male rope 2 includes a loop 21, a magnetic block A22, and a locking tooth 23. The loop 21 at the end of the male rope 2 facilitates passing through the device that needs to be pulled for rescue. The top of the male rope 2 has a magnetic block A22 inside. The locking tooth 23 is evenly arranged in a linear array around the end of the male rope 2. A rotating sleeve 31 is rotatably installed on the outer ring of the locking shell 3. The outer ring of the rotating sleeve 31 has an annular anti-slip groove. The bottom of the locking shell 3 has an annular magnetic block B32 evenly arranged inside. The magnetic attraction between the magnetic block B32 and the magnetic block A22 is of opposite shape. The magnetic force between the magnetic block B32 and the locking tooth 23 is controlled to be symmetrical but does not hinder the pulling out of the male rope 2. A limit device 4 is installed inside the locking shell 3. A spare unlocking device 5 is installed inside the locking shell 3 above the limit device 4.

[0023] In practical applications, this device uses the magnetic attraction between magnetic block A22 and magnetic block B32. When the end of the male rope 2 is close to the bottom opening of the lock nut shell 3, the magnetic attraction automatically aligns the two ends. Combined with the micro-flare at the bottom opening of the lock nut shell 3 to guide the insertion, it achieves a quick alignment effect.

[0024] By setting up a structural cooperation between the lock nut shell 3 and the limiting device 4, the male end rope 2 and the lock nut shell 3 can be quickly unlocked. After the male end rope 2 is inserted into the lock nut shell 3 and the mold is closed, the bottom of the chuck 23 is supported by the ring plate 42. When the male end rope 2 is pulled out directly, the chuck 23 is limited by the pawl 41, and the male end rope 2 cannot be pulled out. By rotating the rotating sleeve 31, the tooth groove 35 drives the gear 36 to rotate inside the rotating groove 33. When the rotating groove 33 rotates, its vertical position is restricted. Through the threaded connection between the rotating groove 33 and the sliding column 43, the sliding column 43 is driven to move downward. When the sliding column 43 is moved out of the gear 36, the bottom of the sliding column 43 is exposed from the bottom of the lock nut shell 3. By pulling the sliding column 43, the sliding column 43 drives the inner column 44 to move downward synchronously. The end of the pawl 41 is pulled downward by the connecting rod 45, causing the pawl 41 to rotate into the lock nut shell 3. At this time, the pawl 41 no longer restricts the chuck 23, and the unlocking effect is achieved.

[0025] By setting up a structural cooperation between the backup unlocking device 5 and the limiting device 4, a backup unlocking method is achieved. Since this device is located in underwater rescue, situations such as poor visibility and mud and sand jamming the rotating sleeve 31 may occur. In this case, it is necessary to press the micro hydraulic bladder 51. The hydraulic oil inside the micro hydraulic bladder 51 is released into the oil bladder 54. After the oil bladder 54 is opened by the hydraulic oil, it squeezes the top bar 52 downward, so that the end of the top bar 52 pushes the ring plate 42 downward. The ring plate 42 simultaneously drives the pawl 41 to rotate inside the lock nut shell 3, thus achieving the backup unlocking effect.

[0026] Please see Figures 1-4 The lock nut shell 3 has a circular groove 33 inside, and an annular groove 34 is formed on the bottom wall of the groove 33. The inner ring of the rotating sleeve 31 has uniformly formed toothed grooves 35. A gear 36 is rotatably installed inside the groove 33. The inner ring of the gear 36 has threads. The gear 36 has symmetrically arranged columns inside, which are located inside the annular groove 34. The shape and size of the columns and the annular groove 34 are compatible. The gear 36 rotates inside the annular groove 34 through the toothed groove 35. The gear 36 and the toothed groove 35 mesh with each other. When the rotating sleeve 31 rotates, the gear 36 is driven to rotate circumferentially inside the groove 33 through the toothed groove 35.

[0027] By setting the anti-slip groove of the rotating sleeve 31, the rotating sleeve 31 can be twisted in situations such as poor visibility. When the rotating sleeve 31 rotates, it drives the gear 36 to rotate through the tooth groove 35. When the gear 36 rotates inside the rotating groove 33, it drives the slide column 43 to move downward spirally by matching the thread of the outer ring of the end of the slide column 43. After the slide column 43 is disengaged from the threaded sleeve of the gear 36, its bottom is exposed at the bottom of the lock nut shell 3. At this time, pulling the bottom of the slide column 43 drives the connecting rod 45 to move downward through the inner column 44. The connecting rod 45 causes the pawl 41 to rotate inside the lock nut shell 3, no longer restricting the locking teeth 23, thus achieving the effect of quick unlocking.

[0028] Please see Figures 1-4 The limiting device 4 includes a pawl 41, a ring plate 42, and a sliding column 43. The pawl 41 is uniformly rotatably installed in a circular shape inside the lock nut housing 3. A coil spring is provided between the inside of the pawl 41 and the lock nut housing 3, which can automatically reset the pawl 41 after it is moved, thus achieving the pawl limiting effect. The pawl 41 is engaged with the locking tooth 23. The limiting device 4 is slidably installed inside the lock nut housing 3. The ring plate 42 is connected to the upper surface of the end of the pawl 41. The sliding column 43 is symmetrically slidably installed inside the lock nut housing 3. The outer ring of the end of the sliding column 43 is provided with a threaded groove. The thread between the outer ring of the end of the sliding column 43 and the inner ring of the gear 36 is adapted. An inner column 44 is slidably installed inside the sliding column 43. A connecting rod 45 is movably connected between the end of the inner column 44 and the end of the pawl 41.

[0029] The limiting device 4 is adapted by the thread between the sliding column 43 and the gear 36, and by pulling the sliding column 43, it drives the interlocking reaction between the inner column 44 and the connecting rod 45, so that the end of the pawl 41 is pulled by the connecting rod 45, and the pawl 41 rotates inside the lock nut shell 3, so that the pawl 41 is hidden inside the lock nut shell 3, and the pawl 23 is no longer restricted by the pawl 41, thus enabling demolding operation.

[0030] Please see Figures 1-4 The backup unlocking device 5 includes a miniature hydraulic bladder 51 and a top bar 52. The miniature hydraulic bladder 51 is fixedly installed on the top of the lock nut housing 3. The top bar 52 is symmetrically slidably installed inside the lock nut housing 3. The position of the top bar 52 corresponds to the position of the sliding column 43. The bottom of the top bar 52 is in contact with the top of the ring plate 42. A spring 53 is fixedly connected between the backup unlocking device 5 inside the lock nut housing 3 and the top bar 52. An oil bladder 54 is provided on the upper surface of the top bar 52 of the backup unlocking device 5. The oil bladder 54 is connected to the miniature hydraulic bladder 51.

[0031] When the backup unlocking device 5 is in use, by pressing the micro hydraulic bladder 51, the hydraulic oil inside the micro hydraulic bladder 51 is depressurized into the oil bladder 54. After the oil bladder 54 is squeezed and expanded by the hydraulic oil, it squeezes the top bar 52, causing the spring 53 to contract under force. The top bar 52 moves downward, causing the ring plate 42 to fluctuate. This causes the pawl 41 to rotate into the lock nut shell 3 due to the fluctuation of the ring plate 42, thus realizing the operation of the backup unlocking path.

[0032] Working principle: During rescue operations, the rope loop 21 is passed through the object or person to be rescued, and then looped around the end of the male rope 2 to secure it. The end of the male rope 2 is then moved towards the lock nut 3. Due to the magnetic force of the magnetic blocks A22 and B32, when the end of the male rope 2 is close to the bottom opening of the lock nut 3, the magnetic force automatically attracts and aligns it. The user can then forcefully insert the male rope 2 into the lock nut 3. When the locking tooth 23 first enters the lock nut 3, the pawl 41 is pushed upward, so that the pawl 41 is hidden inside the lock nut 3, making it easier for the locking tooth 23 to pass through. After the locking tooth 23 passes through, the pawl 41 is springed back due to the spring, locking the locking tooth 23 above the pawl 41, realizing the mold closing operation.

[0033] When unlocking is required, first rotate the rotating sleeve 31. When the rotating sleeve 31 rotates, it drives the gear 36 to rotate circumferentially inside the rotating groove 33 through the tooth groove 35. When the gear 36 rotates, it drives the end of the sliding column 43 to fall downward inside the gear 36. After the threaded groove at the end of the sliding column 43 is released from the thread restriction of the gear 36, the end of the sliding column 43 is exposed at the bottom of the lock nut shell 3. At this time, pull the sliding column 43. The sliding column 43 drives the connecting rod 45 to move downward together through the inner column 44. When the connecting rod 45 moves, it drives the end of the pawl 41 to rotate, so that the pawl 41 rotates and is hidden inside the lock nut shell 3. At this time, the locking tooth 23 is no longer restricted and can be pulled out to demold, thus achieving the unlocking effect.

[0034] Since this device is used underwater, mud and sand may get into the interior of the rotating sleeve 31 and the lock nut shell 3, making the rotating sleeve 31 unable to rotate. At this time, it is necessary to activate the backup unlocking device. By inserting a finger, the micro hydraulic bladder 51 is pressed. After the micro hydraulic bladder 51 is subjected to force, the hydraulic oil inside it is introduced into the oil bladder 54. After being squeezed by the hydraulic oil, the oil bladder 54 expands downward rapidly and squeezes the top bar 52. After being subjected to force, the top bar 52 first compresses the spring 53, and then the bottom of the top bar 52 squeezes the surface of the ring plate 42, so that the pawl 41 is squeezed by the ring plate 42 and rotates inside the lock nut shell 3. The top bar 52 continues to move downward, so that the pawl 41 rotates and contacts the locking tooth 23, achieving the effect of emergency backup unlocking.

Claims

1. A life line for submarine rescue, comprising a female end rope (1) and a male end rope (2), characterized in that: The female end rope (1) is fixedly installed with a lock nut shell (3). The male end rope (2) includes a rope loop (21), a magnetic block A (22), and a locking tooth (23). The male end rope (2) is provided with a rope loop (21) at its end. The top of the male end rope (2) is provided with a magnetic block A (22). The male end rope (2) is provided with locking teeth (23) in a linear array around its end. The outer ring of the lock nut shell (3) is rotatably installed with a rotating sleeve (31). The outer ring of the rotating sleeve (31) is a circular anti-slip groove. The bottom end of the lock nut shell (3) is provided with a circular magnetic block B (32) in a circular array. The magnetic block B (32) and the magnetic block A (22) are attracted by opposite magnetic shapes. The lock nut shell (3) is installed with a limiting device (4). The lock nut shell (3) is installed with a spare unlocking device (5) above the limiting device (4).

2. A life line set for submarine rescue according to claim 1, characterized in that: The lock nut shell (3) has a circular groove (33) inside, and an annular groove (34) is formed on the bottom wall of the groove (33). The inner ring of the rotating sleeve (31) has uniformly formed toothed grooves (35) in a circular shape. A gear (36) is rotatably installed inside the groove (33). The gear (36) meshes with the toothed groove (35). The inner ring of the gear (36) is threaded. A column is symmetrically arranged inside the gear (36). The column is located inside the annular groove (34). The shape and size of the column and the annular groove (34) are compatible.

3. A diving rescue lifeline according to claim 2, characterized in that: The limiting device (4) includes a pawl (41), a ring plate (42), and a sliding column (43). The pawl (41) is uniformly rotated in a circular shape inside the lock nut shell (3). A coil spring is provided between the inside of the pawl (41) and the lock nut shell (3). The pawl (41) is engaged with the locking tooth (23). The limiting device (4) is slidably installed inside the lock nut shell (3). The ring plate (42) is connected to the upper surface of the end of the pawl (41). The sliding column (43) is symmetrically slidably installed inside the lock nut shell (3). The outer ring of the end of the sliding column (43) is provided with a threaded groove. The outer ring of the end of the sliding column (43) is threaded and adapted to the inner ring of the gear (36). An inner column (44) is slidably installed inside the sliding column (43). A connecting rod (45) is movably connected between the end of the inner column (44) and the end of the pawl (41).

4. A diving rescue lifeline according to claim 3, characterized in that: The backup unlocking device (5) includes a miniature hydraulic bladder (51) and a top bar (52). The miniature hydraulic bladder (51) is fixedly installed on the top of the lock nut shell (3). The top bar (52) is symmetrically slidably installed inside the lock nut shell (3). The position of the top bar (52) corresponds to the position of the sliding column (43). The bottom of the top bar (52) is in contact with the top of the ring plate (42). The backup unlocking device (5) is located inside the lock nut shell (3) and is fixedly connected to the top bar (52) by a spring (53). The upper surface of the top bar (52) of the backup unlocking device (5) is provided with an oil bladder (54). The oil bladder (54) is connected to the miniature hydraulic bladder (51).

Images