Fixing device suitable for aquatic environments

Abstract

The utility model discloses a kind of fixing device suitable for water environment, including shell, the exciting type nail shooting assembly of being set in the shell, power supply, and with the main control circuit of this power supply electric connection, nail shooting drive control circuit and nail shooting trigger gate circuit, the exciting type nail shooting assembly includes nail and electrode plug, nail shooting trigger gate circuit is used to send exciting signal to main control circuit, the nail shooting drive control circuit is used to output current to electrode plug, exciting nail shoots out;The nail shooting trigger gate circuit includes contact switch, the shell has pressure trigger mechanism for controlling the opening and closing of the contact switch.Using the above scheme, through multiple insurance structure, rebound type trigger structure, eliminate water pressure influence, especially suitable for water environment use, while greatly improve the reliability and safety of device, overall structure is compact, easy to operate, and operation steps are less, difficulty is low, fault tolerance is very good, be favorable to improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of underwater operation tools, specifically to a fixed device suitable for aquatic environments. 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 several underwater connection and fixing tools, such as the "Underwater Nail Gun" (patent number CN206029777U) and the "Underwater Target Processing Device for Nail Connection" (patent number CN117628991A). These tools primarily launch nails by igniting gunpowder. However, the applicant discovered during their research that most of these similar structures suffer from poor reliability and safety. Once submerged, the tools are easily affected by water pressure, leading to failure to ignite or delayed ignition, which in turn delays the project or causes safety accidents. Utility Model Content

[0004] In view of this, the present invention provides a fixing device suitable for aquatic environments, aiming to solve the problems of poor reliability and safety of current underwater target handling and fixing tools.

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

[0006] A fixing device suitable for aquatic environments, the key features of which are: a housing, an excitation-type nail assembly disposed within the housing, a power supply, and a main control circuit, a nail drive control circuit, and a nail trigger gate circuit electrically connected to the power supply; the excitation-type nail assembly includes a nail and an electrode plug; the nail trigger gate circuit is used to send an excitation signal to the main control circuit; and the nail drive control circuit is used to output current to the electrode plug to excite the nail to be fired.

[0007] The nail-triggered door circuit includes a contact switch, and the housing has a pressure-bearing triggering mechanism for controlling the opening and closing of the contact switch.

[0008] By adopting the above scheme, the nail triggering gate circuit is used in conjunction with the pressure-bearing triggering mechanism, which can greatly improve the reliability of nail triggering and reduce or avoid the influence of water pressure.

[0009] Preferably, the housing has a relatively independent balance chamber, and the housing has a pressure balance hole that communicates with the balance chamber.

[0010] The pressure-bearing triggering mechanism includes a contact rod with one end extending into the balancing cavity, which is clearance-fitted with the housing. The other end is located outside the housing. The balancing cavity has a linkage structure corresponding to the end of the contact rod. The housing contains a transmission component connected to the linkage structure. Initially, the contact switch is in the open state. When the contact rod slides into the balancing cavity under force, it can drive the transmission component to rotate through the linkage structure, thus closing the contact switch. This solution achieves its purpose of being unaffected by water pressure by maintaining consistent internal and external pressure through the balancing cavity and converting the linear motion of the contact rod into rotational motion via the linkage structure.

[0011] Preferably, the transmission component is fixedly connected to the contact switch, and the switch plate inside the housing has a switch baffle on one side corresponding to the contact switch.

[0012] Preferably, the contact switch is fixed inside the housing, and its switch plate is located on the rotation path of the transmission component. Using a fixed contact switch facilitates the connection and fixation of the wiring, improving installation efficiency.

[0013] Preferably, the balancing chamber is located near the front end of the housing, which has a front cover. The balancing chamber and the front cover are integrally formed, and the front cover has a corresponding chamber cover for the balancing chamber. The chamber cover and the front cover are detachably connected. This design improves the overall ease of assembly and disassembly.

[0014] Preferably, the linkage structure includes a connecting rod, a rotating shaft, and a tension spring. The rotating shaft passes through the side wall of the balance chamber, and its two ends are fixedly connected to the connecting rod and the transmission component, respectively. One end of the tension spring is hooked onto the housing, and the other end is hooked onto the connecting rod. Using this scheme, the tension spring maintains the initial position of the connecting rod, which helps to further reduce environmental interference and the influence of the contact rod's own weight, thus improving reliability.

[0015] Preferably, in the initial state, the connecting rod is inclined, with a bearing at the end furthest from the pivot, and the inner end of the contact rod having an abutment portion corresponding to the bearing. Using this design, the bearing reduces the friction between the contact rod abutment portion and the connecting rod, ensuring the connecting rod's rotational flexibility.

[0016] Preferably, the excitation-type nail assembly includes a tube with a firing chamber adapted to the nail. The front end of the tube has a cap threadedly connected to the tube, and both the inner side of the cap and the rear end of the tube have connecting screw holes. This design facilitates rapid installation of the excitation-type nail assembly within the housing, while reducing environmental impact during installation or relocation and ensuring functional reliability.

[0017] Preferably, the inner side of the cover has a thinning groove facing the firing chamber, and a buffer block is provided at the corresponding position. This design improves the centering performance of the nail, reduces splatter, and minimizes splatter damage. Simultaneously, the buffer block allows the nail to adapt to a wider range of resistance materials, ensuring smooth fixing while preventing or reducing nail breakage.

[0018] Preferably, the nail drive control circuit is connected to a water environment excitation switch. By adopting 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 drive control circuit, which helps to further improve the reliability and safety of the nail drive control circuit.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The fixing device suitable for aquatic environments provided by this utility model has multiple safety structures and a spring-loaded trigger structure to eliminate the influence of water pressure, making it very suitable for use in aquatic environments. At the same time, it greatly improves the reliability and safety of the device. The overall structure is compact, the operation is simple, the operation steps are few and the difficulty is low, the fault tolerance is very good, and it is conducive to improving the work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear end structure of the casing;

[0023] Figure 3 This is a schematic diagram of the internal structure of the shell;

[0024] Figure 4 A schematic diagram of the contact switch installation;

[0025] Figure 5 for Figure 4 Sectional view;

[0026] Figure 6 This is a schematic diagram of a pressure-triggered mechanism;

[0027] Figure 7 This is a schematic diagram of the inner structure of the front cover;

[0028] Figure 8 This is a schematic diagram of the outer structure of the front cover;

[0029] Figure 9 This is a schematic diagram of the structure of the trigger-type nail gun assembly;

[0030] Figure 10 This is a schematic diagram of another structure for a buffer block;

[0031] Figure 11This is a logic block diagram illustrating the working principle of this utility model;

[0032] Figure 12 This is a schematic diagram of the power supply circuit for this utility model;

[0033] Figure 13 This is a schematic diagram of the main control circuit of this utility model;

[0034] Figure 14 Schematic diagram of water environment excitation switch;

[0035] Figure 15 This is a schematic diagram of the nail-triggered door circuit.

[0036] Figure 16 This is a schematic diagram of the nail gun drive control circuit. Detailed Implementation

[0037] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0038] refer to Figures 1 to 16 The fixing device shown, suitable for aquatic environments, mainly includes a hollow housing 100, an excitation-type nail-shooting assembly 200 disposed within the housing 100, a power supply 300, and a main control circuit 400, a nail-shooting drive control circuit 500, a nail-shooting trigger gate circuit 700, and a power supply circuit 900 electrically connected to the power supply 300. The power supply 300 supplies power to the main control circuit 400 and the nail-shooting drive control circuit 500 through the power supply circuit 900. At the same time, a power-on switch 310 is provided between the power supply 300 and the power supply circuit 900. The power-on switch 310 is disposed on the housing 100 and can be operated from outside the housing 100. When the power-on switch 310 is closed, power can be supplied to the main control circuit 400 and the nail-shooting drive control circuit 500 through the power supply circuit 900.

[0039] The excitation-type nail assembly 200 includes a nail 210 and an electrode plug 220. A nail trigger gate circuit 700 sends an excitation signal to the main control circuit 400, and a nail drive control circuit 500 outputs current to the electrode plug 220 to excite the nail 210 to fire. In this application, the nail trigger gate circuit 700 mainly includes a contact switch 710, and the housing 100 has a pressure-bearing trigger mechanism 600 for controlling the opening and closing of the contact switch 710.

[0040] Specifically, the housing 100 has a relatively independent balance chamber 110, and the housing 100 has a pressure balance hole 111 that communicates with the balance chamber 110. When the housing 100 is filled with water, the water enters the balance chamber 110 through the pressure balance hole 111, so that the internal and external pressures are basically the same.

[0041] As shown in the figure, the pressure-bearing triggering mechanism 600 in this embodiment mainly includes a contact rod 610 with one end extending into the balance cavity 110. The contact rod 610 is in clearance fit with the housing 100, and the other end is located outside the housing 100. The balance cavity 110 has a linkage structure 620 corresponding to the end of the contact rod 610. The housing 100 has a transmission component 630 connected to the linkage structure 620. In the initial state, the contact switch 710 is in the open state. When the contact rod 610 is subjected to force and slides towards the balance cavity 110, it can drive the transmission component 630 to rotate through the linkage structure 620 and make the contact switch 710 in the closed state.

[0042] Based on the above opening and closing action requirements, this application provides two installation methods for the contact switch 710, the first being as follows: Figure 6 As shown, the transmission component 630 is fixedly connected to the contact switch 710 (movably installed relative to the housing). Inside the housing 100, there is a switch baffle 640 on the side of the switch plate corresponding to the contact switch 710. Thus, when the transmission component 630 rotates, it can drive the contact switch 710 to rotate, so that its switch plate contacts and closes with the switch baffle 610.

[0043] The second type of contact switch 710 is fixedly installed relative to the housing 100 (not shown in the figure), and its switch plate is located on the rotation path of the transmission member 630. In this way, when the transmission member 630 rotates, the switch plate is directly pressed by the transmission member 630 to realize the closing of the contact switch 710.

[0044] In a specific implementation, the balance chamber 110 is close to the front end of the housing 100. The housing 100 has a front end cover 120. The balance chamber 110 and the front end cover 120 are integrally formed. The front end cover 120 has a chamber cover 121 corresponding to the balance chamber 110. The chamber cover 121 and the front end cover 120 are detachably connected. The pressure balance hole is directly formed on the chamber cover 121.

[0045] The linkage structure 620 includes a connecting rod 621, a rotating shaft 622, and a tension spring 623. The rotating shaft 622 passes through the side wall of the balance chamber 110. The balance chamber 110 has a shaft hole 112 for it to pass through. A rotating seal structure is adopted between the rotating shaft 622 and the shaft hole 112 to prevent water from entering other areas inside the housing 100 when it rotates. The two ends of the rotating shaft 622 are fixedly connected to the connecting rod 621 and the transmission component 630, respectively. One end of the tension spring 623 is hooked on the housing 100, and the other end is hooked on the connecting rod 621.

[0046] As shown in the figure, in the initial state, the connecting rod 621 is tilted, the upper end of the tension spring 623 is fixed on the chamber cover 121, and the end (upper end) away from the rotating shaft 622 has a bearing 624. The inner end of the contact rod 610 has an abutment part 611 corresponding to the bearing 624. The abutment part 611 has a rectangular plate structure and is perpendicular to the axis of the contact rod 610.

[0047] In this embodiment, to further improve the efficiency of disassembly and assembly, if the contact switch 710 adopts a relatively movable installation method, the switch baffle 640 is directly installed at the bottom of the balance cavity 110. At the same time, the internal width of the balance cavity 110 is adapted to the width of the connecting rod 621, which can further improve the stability of the connecting rod 621 when rotating.

[0048] In this application, the trigger-type nail assembly 200 also includes a tube 230, which has a firing cavity 231 adapted to the nail 210. The front end of the tube 230 has a cap 240, as shown in the figure. The cap 240 is threadedly connected 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 end cap 120 has mounting holes 122 adapted to the cap 240.

[0049] In specific implementation, the nail 210 mainly includes an integrally formed tail section 211 and a nail insertion section 212, wherein the diameter of the tail section 211 is larger than that of the nail insertion section 212, the end of the nail insertion section 212 is pointed, the inner side of the cover 240 has a thinning groove 241 facing the firing cavity 231, and a buffer block 260 is provided at the corresponding position. This embodiment shows two structures of the buffer block 260, the first being as follows: Figure 9 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 10 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.

[0050] 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 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 the electrode plug 220 has a circuit working current input, the activator 280 can be ignited by a spark, thereby firing the nail 210.

[0051] Key reference Figure 2 , Figure 3 , Figures 11 to 16The housing 100 has parallel circuit boards A150 and B160 inside. The nail drive control circuit 500 is arranged on the circuit board A150, and the main control circuit 400, power supply circuit 900, and water environment excitation switch 800 are all arranged on the circuit board B160. In addition, the housing 100 has a rear end cover 130. The rear end cover 130 and the front end cover 120 are all sealed to the housing 100. The power switch 310 is arranged on the rear end cover 130 and usually adopts a rotary press-type structure.

[0052] In addition, in this embodiment, the nail drive control circuit 500 is connected to a water environment excitation switch 800, and a water environment detection module 140 is provided on the rear cover 130. The water environment detection module 140 mainly utilizes the conductivity of water and is controlled by a threshold comparison circuit. Figure 14 The opening and closing of the first switch V1 is conducted underwater and disconnected when out of water (this is a mature technology and will not be described in detail here).

[0053] Specifically, Figure 12 BAT-TO-NSG and Figure 14 The BAT-TO-NSG interface is connected, and the feedback signal of the water environment detection module 140 is connected to it. Figure 14 HS interface connection, Figure 12 MVCC and Figure 13 MVCC (MCU pin 24) connection, Figure 15 SW-IN1 and SW-IN1 are two signals of the contact switch 710, respectively. Figure 15 SW and Figure 12 The SW (MCU pin 20) is connected. In this embodiment, to improve reliability, the contact switch 710 adopts a dual-signal output structure, with two sets of output signals. After triggering, either signal sent to the gate circuit can transmit an excitation signal to the MCU. Figure 16 NSG-POWER and Figure 14 NSG-POWER connection, NSG-CTRL and Figure 13 Connect the NSG-CTRL (MCU pin 26) in the middle. Figure 16 NSG is the input line of the electrode plug.

[0054] use Figures 1 to 16The fixing device shown is suitable for aquatic environments. The working process of this utility model is as follows: Before use, turn on the power switch 310. The power supply circuit 900 supplies power to the main control circuit 400. When the device enters the water, the water environment excitation switch is turned on, and the nail drive control circuit 500 is energized. When the device approaches the target or the object to be fixed, the contact rod 610 collides with the corresponding target or object and is pressed. The pressure triggering mechanism 600 works, causing the contact switch 710 to close. The device also sends a feedback signal to the MCU through the set trigger gate circuit. The MCU then sends an excitation signal to the set drive control circuit. The second switch V2 in the circuit is turned on, and the current enters the electrode plug 220, igniting the ignition charge 280, which in turn shoots out the nail 210.

[0055] The device described in this application has a lightweight and compact overall structure, making it easy to carry and operate in large quantities. It is especially suitable for the following special application scenarios, such as:

[0056] Underwater target processing is becoming increasingly sophisticated, with underwater targets becoming more difficult to eliminate and deploy. A few underwater targets arranged in an array can blockade a waterway or port. Traditional processing methods are ineffective against these sophisticated underwater targets. To reliably destroy or detonate them, the explosive charge must be tens or even hundreds of kilograms of TNT equivalent, resulting in large, heavy underwater target processing devices and a limited number that can be carried by a platform. This device, however, is compact and lightweight, allowing for large-scale deployment. Multiple units can be deployed on a surface platform in any configuration. Simply turning on the power switch 310 activates the device, causing the contact rod 610 to collide with the underwater target, enabling the simultaneous processing of a larger number of underwater targets.

[0057] Ship Leak Repair: During navigation, collisions and groundings are inevitable for ships and vessels, leading to cracks and breaches. Commonly used methods include sealing plates, pads, bags, and umbrellas for quick leak sealing. The efficiency and speed of securing these materials directly impacts the ship's buoyancy. This device's nail-shooting mechanism is powerful and resistant to seawater impact. It allows for rapid deployment, positioning, and firing to seal internal or external hull walls, preventing seawater from entering the ship and effectively reducing sealing time for comprehensive leak sealing. The device features minimal underwater operation steps, low difficulty, and good fault tolerance. Deployment is completed simply by powering on, triggering, and securing. It uses a single-use battery with a long lifespan. This underwater trigger-type fixing device is compact and simple, can be carried in large quantities, and can fire multiple devices simultaneously for hull leak repair, significantly improving underwater operational efficiency.

[0058] Waterborne Salvage: Existing methods for salvaging floating objects on water mostly employ mechanical drives for fixing structures. They grip the advantageous protrusions and recesses at the top of the target object, fix it, and then pull it vertically upwards. However, traditional methods have weak gripping and fixing capabilities, low reliability, and difficulty in maintaining a stable grip on complex surfaces, easily leading to the risk of secondary detachment. Furthermore, most current nail-shooting devices are mechanically triggered, resulting in large and heavy nail-fixing products, which are unsuitable for underwater applications. This underwater trigger-type fixing device features a nail-shooting mechanism with an independent power system, greater power, and the ability to quickly initiate nail firing into the target, ensuring a stable and secure hold. Within the operating water depth, it can reliably fix targets with different shapes (conical, cylindrical, spherical), different wall thicknesses, and different materials (steel, aluminum alloy, fiberglass, concrete, non-metallic materials).

[0059] Unmanned floating platforms: Traditional unmanned floating platform fixing devices mostly use buoys to provide buoyancy, with anchors and cables used for connection and fixation. The fixing effect of cable connections gradually decreases after prolonged immersion and impact in water, and the stability and reliability also decrease. The nail-shooting mechanism in this device adopts the principle of pyrotechnic power, and has the characteristics of small size, light weight, high power, simple operation, safety and reliability, targeted target treatment, and high efficiency.

[0060] 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 fixing device suitable for aquatic environments, characterized in that: The device includes a housing (100), an excitation-type nail assembly (200) disposed within the housing (100), a power supply (300), and a main control circuit (400), a nail drive control circuit (500), and a nail trigger gate circuit (700) electrically connected to the power supply (300). The excitation-type nail assembly (200) includes a nail (210) and an electrode plug (220). The nail trigger gate circuit (700) is used to send an excitation signal to the main control circuit (400), and the nail drive control circuit (500) is used to output current to the electrode plug (220) to excite the nail (210) to be fired. The nail triggering gate circuit (700) includes a contact switch (710), and the housing (100) has a pressure-bearing triggering mechanism (600) for controlling the opening and closing of the contact switch (710).

2. The fixing device suitable for aquatic environments according to claim 1, characterized in that: The housing (100) has a relatively independent balance chamber (110) inside, and the housing (100) has a pressure balance hole (111) that communicates with the balance chamber (110); The pressure-bearing triggering mechanism (600) includes a contact rod (610) with one end extending into the balance cavity (110), the contact rod (610) being clearance-fitted with the housing (100), and the other end located outside the housing (100). The balance cavity (110) has a linkage structure (620) corresponding to the end of the contact rod (610). The housing (100) has a transmission component (630) connected to the linkage structure (620). In the initial state, the contact switch (710) is in the open state. When the contact rod (610) is subjected to force and slides into the balance cavity (110), it can drive the transmission component (630) to rotate through the linkage structure (620) and make the contact switch (710) in the closed state.

3. The fixing device suitable for aquatic environments according to claim 2, characterized in that: The transmission component (630) is fixedly connected to the contact switch (710), and the housing (100) has a switch baffle (640) on one side of the switch plate corresponding to the contact switch (710).

4. The fixing device suitable for aquatic environments according to claim 2, characterized in that: The contact switch (710) is fixed inside the housing (100), and its switch plate is located on the rotation path of the transmission component (630).

5. The fixing device suitable for aquatic environments according to any one of claims 2 to 4, characterized in that: The balancing chamber (110) is located near the front end of the housing (100). The housing (100) has a front cover (120). The balancing chamber (110) and the front cover (120) are integrally formed. The front cover (120) has a chamber cover (121) corresponding to the balancing chamber (110). The chamber cover (121) and the front cover (120) are detachably connected.

6. The fixing device suitable for aquatic environments according to any one of claims 2 to 4, characterized in that: The linkage structure (620) includes a connecting rod (621), a rotating shaft (622), and a tension spring (623). The rotating shaft (622) passes through the side wall of the balance chamber (110) and is fixedly connected at both ends to the connecting rod (621) and the transmission component (630), respectively. One end of the tension spring (623) is hooked on the housing (100), and the other end is hooked on the connecting rod (621).

7. The fixing device suitable for aquatic environments according to claim 6, characterized in that: In the initial state, the connecting rod (621) is inclined, and the end away from the rotating shaft (622) has a bearing (624), and the inner end of the contact rod (610) has an abutment part (611) corresponding to the bearing (624).

8. The fixing device suitable for aquatic environments according to any one of claims 1 to 4, characterized in that: The excitation-type nail assembly (200) includes a tube (230) with a firing chamber (231) adapted to the nail (210) inside the tube (230). The front end of the tube (230) has a cap (240) which is threaded to the tube (230). The inner side of the cap (240) and the tail end of the tube (230) both have connecting screw holes (250).

9. The fixing device suitable for aquatic environments according to claim 8, characterized in that: The inner side of the cover (240) has a thinning groove (241) facing the emission cavity (231), and a buffer block (260) is provided at the corresponding position.

10. The fixing device suitable for aquatic environments according to any one of claims 1 to 4, characterized in that: The nail drive control circuit (500) is connected to a water environment excitation switch (800).

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