Excitation type nail shooting assembly

By designing an excitation-type nailing assembly, the problems of complex structure and water pressure affecting underwater nailing tools were solved, achieving a simple, safe, and reliable underwater fixing effect.

CN223971632UActive Publication Date: 2026-03-06CHONGQING QIANWEI SCI & TECH GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing underwater nailing tools have complex structures and are easily affected by water pressure, resulting in poor fixing effects.

Method used

An excitation-type nail assembly was designed, including a tube body, nail, cap, electrode plug, and excitation propellant. Through threaded connections and a buffer block structure, sealing and alignment performance are ensured. The nail does not splash after being excitationd underwater. Circuit control is used to improve reliability and safety.

Benefits of technology

It features a simple structure, is suitable for underwater use, produces no splashing after the nail gun is fired, and has good safety and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223971632U_ABST
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Abstract

The utility model discloses an excitation type shoot nail component, the excitation type shoot nail component comprises a tube body with a shooting cavity and a shoot nail placed in the shooting cavity, one end of the shooting cavity is open, the end is a shooting end, an electrode plug is arranged in the other end, and excitation powder is filled between the electrode plug and the shoot nail; the transmitting end is provided with a sealing cover, the sealing cover is in threaded connection with the tube body, and connecting screw holes are formed in the inner side of the sealing cover and the tail end of the tube body. By the adoption of the scheme, the whole structure is simple, the size is small, control is easy, the device is particularly suitable for underwater use, no splash exists after the nail shooting action, and good safety and reliability are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of underwater operation tools, specifically to an excitation-type nail gun assembly. Background Technology

[0002] With the rapid development of underwater target technology and other engineering technologies, for example, ships and vessels inevitably encounter unexpected situations such as collisions and grounding during navigation, leading to cracks and breaches. Commonly used leak-stopping plates, gaskets, bags, and umbrellas are used to quickly seal these breaches. The efficiency and speed with which these materials are secured directly affects their anti-sinking performance.

[0003] Existing technologies include some underwater connection and fixing tools, such as the patent with patent number "CN206029776U" entitled "Underwater Special Nail Spray Assembly", which mainly launches nails by igniting gunpowder. The applicant found in his research that most of the similar structures currently have problems such as complex internal structure and easy to be affected by water pressure after the tool enters the water, resulting in poor fixing effect. Utility Model Content

[0004] In view of this, the present invention provides an excitation-type nail gun assembly, which aims to solve the problem of poor underwater applicability of current nail gun tools.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A trigger-type nail assembly, the key feature of which is that the trigger-type nail assembly includes a tube having a firing chamber and a nail placed in the firing chamber, one end of the firing chamber being open and serving as the firing end, and an electrode plug being provided in the other end, with a triggering agent filling the space between the electrode plug and the nail;

[0007] The transmitter has a cap that is threaded to the tube body, and both the inner side of the cap and the tail end of the tube body have connecting screw holes.

[0008] Using the above solution, the nail gun assembly can be brought close to the target to be treated or fixed in a relatively sealed state, and then the nail can be fired by the propellant. The overall structure is simple and can effectively avoid the influence of water pressure. On the other hand, it can also be used in conjunction with other components.

[0009] Preferably, the inner side of the cover has a thinning groove facing the firing cavity, and a buffer block is provided at the corresponding position. The thinning groove and the buffer block are coaxially arranged with the firing cavity. This design improves the centering performance of the nail, reduces spatter, and minimizes sputtering damage. Simultaneously, the buffer block allows the nail to adapt to a wider range of resistance materials, ensuring smooth fixing while avoiding or reducing nail breakage.

[0010] Preferably, the nail comprises an integrally formed tail section and a driving section, wherein the diameter of the tail section is larger than the diameter of the driving section, the diameter of the tail section is adapted to the firing cavity, and the end of the driving section is pointed. This design improves the stability and penetration capability of the nail.

[0011] Preferably, the buffer block is a cylindrical or a rotating structure with a vertical cross-section in the shape of an "eight".

[0012] Preferably, the tail end of the nail is provided with a liner ring, the tail section having an annular groove and an annular extension, the liner ring being partially embedded in the annular groove, the activating propellant being located inside the liner ring, and the end face of the electrode plug abutting against the end face of the liner ring. This design ensures that the activating propellant will not be damaged or suffer other safety issues due to vibration within the device, guaranteeing its stability.

[0013] Preferably, the electrode plug is equipped with a nail-driving control circuit, which has an independent main control circuit and power supply circuit, and the power supply circuit has a water environment excitation switch. With this solution, the water environment is detected through the detection terminal before the water environment excitation switch is turned on to supply power to the nail-driving control circuit, which helps to further improve the reliability and safety of the nail-driving control circuit, making it particularly suitable for underwater environments.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The excitation-type nail gun assembly provided by this utility model has a simple overall structure, small size, and simple control. It is especially suitable for underwater use. There is no splashing after the nail gun is fired, which has good safety and reliability. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of another structure for a buffer block;

[0018] Figure 3 This is a schematic diagram illustrating the working principle of this utility model in conjunction with its fixed operation.

[0019] Figure 4 for Figure 3 Schematic diagram of the power supply circuit;

[0020] Figure 5 for Figure 3 Schematic diagram of the main control circuit;

[0021] Figure 6 for Figure 3 Schematic diagram of the excitation switch for greywater environment;

[0022] Figure 7 for Figure 3 Schematic diagram of the trigger gate circuit for the mid-shot nail;

[0023] Figure 8 for Figure 3 Schematic diagram of the nail drive control circuit. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0025] refer to Figure 1 and Figure 2 The illustrated trigger nail assembly mainly includes a hollow tube 230 with a firing chamber 231 adapted to a nail 210. The nail 210 is placed inside the firing chamber 231. One end of the tube 230 is open and has a cap 240, which is the firing end. As shown in the figure, the cap 240 is threaded to the tube 230, and both the inner side of the cap 240 and the tail end of the tube 230 have connecting screw holes 250. The front cover 120 has mounting holes 122 adapted to the cap 240. An electrode plug 220 is provided at the end of the firing chamber 231 away from the firing end. The electrode plug 220 has an electrode wire extending out of the firing chamber 231, and the space between the electrode plug 220 and the nail 210 is filled with a propellant 280.

[0026] In practical implementation, the nail 210 mainly includes an integrally formed tail section 211 and a nail insertion section 212. The diameter of the tail section 211 is larger than that of the nail insertion section 212, and the end of the nail insertion section 212 is pointed. The inner side of the cover 240, facing the firing cavity 231, has a thinning groove 241, and a buffer block 260 is provided at the corresponding position. Furthermore, the thinning groove 241, the buffer block 260, and the firing cavity 231 are coaxially arranged.

[0027] This application provides two structures for the buffer block 260, the first of which is as follows: Figure 1 As shown, it has a ring-shaped structure, the inner diameter of which is adapted to the diameter of the nailing section 212, and is fixed inside the firing cavity 231, abutting against the cover 240. The second structure is as follows... Figure 2 As shown, its cross-section is roughly "eight" shaped, and it is a rotating structure that can be directly fixed to the cover 240 by screws. Its minimum inner diameter is adapted to the diameter of the nailing section 212. In both embodiments, the material of the buffer block 260 is a material with good toughness, such as aluminum or copper.

[0028] In addition, in this embodiment, the tail end of the nail 210 is provided with a liner ring 270, as shown in the figure. The tail section 211 has an annular groove 213 and an annular extension 214. The liner ring 270 is partially embedded in the annular groove 213. The outer side of the liner ring 270 is in close contact with the inner wall of the annular extension 214. The activator 280 is filled in the liner ring 270. The liner ring 270 is generally made of a low-density and lightweight material to fix the activator 280 and ensure that the activator 280 will not be damaged or have safety issues due to vibration in the device. The electrode plug 220 abuts against the end face of the tail end of the liner ring 270 to form a blockage and contacts the activator 280. In this way, when there is a working current input to the electrode plug 220, the activator 280 can be ignited by a spark, thereby firing the nail 210.

[0029] Furthermore, to improve the safety of the nail-shooting assembly, the electrode plug 220 is equipped with a nail-shooting drive control circuit 500. This circuit 500 includes an independent main control circuit 400 and a power supply circuit 900, with the power supply circuit 900 featuring a water environment excitation switch 800. Specifically, it is typically used in conjunction with a portable power supply 300 and a nail-shooting trigger gate circuit 700. As shown in the figure, the power supply 300 is equipped with a power-on switch 310, and the nail-shooting trigger gate circuit 700 is primarily used to provide an excitation signal to the main control circuit 400.

[0030] refer to Figures 1 to 8 The shown trigger-type nail assembly can be used alone or in conjunction with related circuitry and devices. Figure 4 BAT-TO-NSG and Figure 6 BAT-TO-NSG interface connection, Figure 4 MVCC and Figure 5 MVCC (MCU pin 24) connection, Figure 7 SW-IN1 and SW-IN2 are two given trigger signals, Figure 7 SW and Figure 5 Connect SW (MCU pin 20) in the middle. Figure 8 NSG-POWER and Figure 6 NSG-POWER connection, NSG-CTRL and Figure 5 Connect the NSG-CTRL (MCU pin 26) in the middle. Figure 8 NSG is the input line of the electrode plug.

[0031] During use, when the power switch 310 is turned on, the power supply circuit 900 can supply power to the main control circuit 900. When the device is immersed in water, the water environment excitation switch 800 is turned on. Figure 6When the first switch V1 is turned on, the nail drive control circuit 500 is energized, but the second switch V2 is in the off state. When the nail trigger gate circuit 700 sends a signal to the main control circuit 400, the main control circuit 400 sends an excitation signal to the nail drive control circuit 500, and the second switch V2 is turned on, so that current can be output to the electrode plug 220, thereby making the activator 280 work and firing the nail 210. The nail trigger gate circuit 700 can use a variety of triggering methods, such as a micro switch closing signal or a pressure signal.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A trigger nail firing assembly, characterized by: The application relates to a nail shooting device, which comprises a tube (230) with a shooting cavity (231) and a shooting nail (210) arranged in the shooting cavity (231), wherein one end of the shooting cavity (231) is open and serves as a shooting end, and the other end is provided with an electrode plug (220), and the electrode plug (220) and the shooting nail (210) are filled with an excitation drug (280). The shooting end is provided with a cover (240), the cover (240) is threadedly connected with the tube (230), and the inner side of the cover (240) and the tail end of the tube (230) are provided with connecting screw holes (250).

2. The fired nail assembly of claim 1, wherein: The inner side of the cover (240) is provided with a thinning groove (241) opposite the shooting cavity (231), and a buffer block (260) is arranged at the corresponding position, and the thinning groove (241), the buffer block (260) and the shooting cavity (231) are coaxially arranged.

3. The bumping assembly of claim 2, wherein: The shooting nail (210) comprises an integral tail section (211) and a nail insertion section (212), the diameter of the tail section (211) is larger than that of the nail insertion section (212), the diameter of the tail section (211) is adapted to the shooting cavity (231), and the end of the nail insertion section (212) is pointed.

4. The flush cocked nail firing assembly of claim 2 or 3, wherein: The buffer block (260) is a cylindrical structure or a rotary structure with an "eight" shape in vertical section.

5. The launch-style nail firing assembly of claim 3, wherein: The tail end of the shooting nail (210) is provided with a lining ring (270), the tail section (211) is provided with a ring groove (213) and a ring extension (214), the lining ring (270) is partially embedded in the ring groove (213), the excitation drug (280) is arranged in the lining ring (270), and the end face of the electrode plug (220) abuts against the end face of the lining ring (270).

6. The fired nail assembly of any one of claims 1 to 3, wherein: The electrode plug (220) is provided with a shooting nail driving control circuit (500), the shooting nail driving control circuit (500) comprises an independent main control circuit (400) and a power supply circuit (900), and the power supply circuit (900) is provided with a water environment excitation switch (800).

Citation Information

Patent Citations

  • Special shooting pill subassembly under water

    CN206029776U