Technical realization elements of special rope cutter for water rescue and diving

Technical realization elements:

5. In view of the above-mentioned problems of the prior art, the purpose of this utility model is to propose a special rope cutter for water rescue and diving, which is not only convenient and efficient to use, but also safer and more reliable when used underwater.

6. The technical solutions adopted by the utility model to solve its technical problems are:

7. A special rope cutter for water rescue and diving, including a body and a sheath; the body includes a knife body and a handle, one side of the knife body is provided with a half-moon hook and serrations, and the The serrations are located at the back of the half-moon hook; each tooth head of the serrations is in a smooth arc shape; the blade of the half-moon hook is inwardly curved; the middle of the foremost end of the handle is provided with a positioning hole, A waist-shaped lock hole is provided behind the positioning hole; the sheath includes a blade guard portion and a locking portion, and the locking portion is provided with a two-finger pressing lock.

8. A further preferred technical solution, the two-finger press lock includes a base, a left press buckle, a right press buckle, a fixed plate and a spring post; the base is provided with a sliding groove and a spring groove, and the sliding groove is provided There are two left-right symmetrical rectangular holes; the left and right press buckles both include a sliding rod, a pressing lug, a clamping post and a limit post; the sliding bar is placed in the sliding groove, and the limit The column is placed on the bottom surface of the sliding rod and inserted into the rectangular hole; the clamping column is arranged inside the top surface of the sliding rod, and a hook is provided on the top of the clamping column; the fixing plate is provided There are press buckle limit holes and spring post holes; the clamping posts of the left press buckle and the right press buckle pass through the press buckle limit holes and are arranged staggered; the bottom of the spring post is equipped with a spring, and the bottom of the spring post Installed in the spring groove; the top of the spring column passes through the spring column hole; the fixing plate is fixed to the base by bolts.

9. A further preferred technical solution, the back of the sheath shell is provided with an insert plate that matches the international universal square card socket on the rescue life jacket, and the insert plate is inserted into the square card socket and fixed on the life jacket, so it is very convenient for rescuers Carry.

10. A further preferred technical solution, the front of the sheath shell is provided with a positioning post that matches the positioning hole, and the

The main body quickly and accurately inserts the main body into the sheath through the positioning hole and the positioning post.

11. A further preferred technical solution, the rear end of the sheath shell is provided with an oval first lanyard hole.

12. A further preferred technical solution is that the front end of the main body is provided with a flat-shaped screwdriver bit, and the end of the main body is provided with a broken window tip. In an emergency, it can be used as a flat screwdriver and a window breaker.

13. A further preferred technical solution, the handle is provided with a rubberized edge, and a non-slip texture is provided on the surface of the rubberized edge.

14. A further preferred technical solution, the handle is also provided with a bottle opener port and a weight-reducing port.

15. A further preferred technical solution, the rear end of the handle is provided with a second lanyard hole.

16. A further preferred technical solution, the body is made of titanium alloy material, and the surface is provided with a Teflon coating.

17. A further preferred technical solution, the other side of the knife body is provided with a flat-angled blade and a thumb anti-slip tooth, and the thumb anti-slip tooth is placed at the back of the flat-angled blade.

18. The beneficial effects of this utility model are:

19.1. The saw teeth of the traditional rope cutter are pointed teeth. The saw teeth of this rope cutter adopt plum blossom inverted teeth. Each tooth head adopts a smooth arc surface design, which can greatly reduce during diving or underwater rescue. Probability of accidental injury.

20.2. The traditional sharp teeth are easily entangled with the fiber when cutting the rope, which affects the efficiency of cutting the rope; the serration of this rope cutter is a smooth arc tooth, which solves the problem of entanglement with the fiber.

21.3. The knife heads of traditional multi-function knives are all pointed designs. Once missed, the pointed knives can easily pierce the rubber boat and the instep when they fall. The rope cutter is a flat head design, which not only greatly reduces the probability of accidental injury, It can also be used as a tool to pry oysters and shells.

22.4. The half-moon hook and serration of the traditional knife are not on the same side. When switching the rope cutting method, the blade needs to be turned over, which affects the efficiency of cutting rope; the half-moon hook and serration are designed on the same side in this rope cutter, which is convenient for sawing and pulling. It can switch seamlessly and repeatedly, and it is more in line with the principle of human force, which improves the efficiency and safety in operation.

23.5. The saw-tooth blade of the traditional knife is a straight line or the outer arc is convex design, which is easy to escape when cutting the rope; the half-moon hook of the rope cutter is an inwardly curved arc design, which wraps the cut rope in the arc of the blade Here, even when the line of sight is blurred underwater, the probability of rope escape is greatly reduced.

24.6. The traditional scabbard is designed with a single-finger pressing buckle. After it is opened in an emergency rescue process, the knife body is likely to fall. The sheath of this rope cutter adopts a two-finger push-type lock. When opening, the hand movement is just in the holding state. After opening, the user can directly hold the handle. In addition, in order to improve the efficiency of the knife body out of the sheath, the inventor specially designed the design of the spring post. After opening the buckle with two fingers, The handle of the rope cutter automatically pops out into the palm of the hand, thereby realizing the purpose of quick removal under water.

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