Underwater vehicle cross-domain signal acquisition device

Abstract

The invention belongs to the technical field of underwater launching, and particularly relates to an underwater vehicle cross-domain signal acquisition device which comprises a bottom cover, the bottom cover is in threaded connection with the lower portion of a base, an electrical control communication module is arranged in the base and electrically connected with a trigger, the trigger is electrically connected with a gas generation device, and the gas generation device is electrically connected with a gas sensor. The upper part of the base is in threaded connection with the lower part of the cylinder body, a plurality of guide strips for straightly penetrating through wires are uniformly mounted on the inner wall of the cylinder body in the circumferential direction, a load is arranged in the cylinder body, the upper part of the cylinder body is in threaded connection with the upper cover, and eight waterproof threading bolts for penetrating through the positive electrode and the negative electrode of an electrode are mounted below the upper cover. According to the invention, the structure is simple, and whether a closed loop can be formed by the electrode and the electrical control communication module is determined, so that a water outlet signal of the upper cover can be accurately detected, and the signal can be timely, reliably and rapidly transmitted to a trigger to complete ejection of a load.

Description

A cross-domain signal acquisition device for underwater vehicles Technical Field

[0001] This invention belongs to the field of underwater launch technology, and specifically relates to a cross-domain signal acquisition device for underwater vehicles. Background Technology

[0002] As countries place increasing emphasis on marine resources, safeguarding their rights and interests in the vast oceans far from land becomes particularly important. Pre-positioned launchers, characterized by low power consumption, low cost, high concealment, and diverse payloads, can be deployed in advance by ships, submarines, and other means to designated sea areas to perform area denial, deterrence, and strike missions, playing a significant role in safeguarding their own rights and interests.

[0003] Pre-positioned launchers can transport payloads from several meters underwater to the surface and launch them into the air, enabling rapid cross-domain transport. However, existing pre-positioned launchers suffer from the following problems: In wave-filled environments, it's difficult to accurately determine whether the cover is above water, and it's also difficult to reliably and promptly transmit this signal to the control system to complete payload launch, easily missing the optimal launch opportunity; the method of indirectly obtaining the cover's water-emergence signal by installing a pressure sensor on the base is prone to significant depth deviations due to varying seawater densities at different depths; if launch is triggered before the cover is fully above water, the payload may become submerged and malfunction; transmitting signals collected by the cover component to the base control module via wireless transmission methods such as Bluetooth requires the component to remain continuously powered on for communication, which battery capacity cannot support prolonged operation, and continuous operation makes the device vulnerable to detection; while placing a signal line in the middle of the cylinder can achieve lower signal latency and more reliable transmission, the signal line in the cylinder is prone to tangling or stacking during payload launch, affecting the launch height and causing launch failure. Summary of the Invention

[0004] The present invention provides a cross-domain signal acquisition device for underwater vehicles to address the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an underwater vehicle cross-domain signal acquisition device, comprising a bottom cover, the bottom cover being screwed to the lower part of a base, an electrical control and communication module being disposed within the base, a support block being disposed above the electrical control and communication module, a trigger being embedded in the support block, a gas generator being disposed above the support block, the trigger being electrically connected to the electrical control and communication module and the gas generator, the gas generator being used to fill high-pressure gas, the upper part of the base being screwed to the lower part of a cylinder, and circumferentially uniformly installed on the inner wall of the cylinder. There are multiple guide strips, and the guide strips have a wire-insertion groove on the side near the inner wall of the cylinder for passing through the wire. The cylinder is provided with a load holder, and the outer wall of the load holder is circumferentially and evenly provided with guide strip grooves corresponding to the guide strips. The load holder is set on the upper surface of the gas generator and a load is set inside the load holder. The upper part of the cylinder is screwed to the upper cover, and the lower part of the upper cover is circumferentially and evenly fixed with multiple waterproof wire-through bolts. Electrodes are installed inside the waterproof wire-through bolts, and the multiple electrodes are respectively connected to the positive or negative terminal of the electrical control and communication module through wires.

[0006] Furthermore, the support block has through holes for the wires to pass through.

[0007] Furthermore, the guide bar is provided with two positioning pins on the side near the cylinder, and the upper part of the cylinder is provided with positioning grooves corresponding to the positioning pins to prevent relative rotation between the guide bar and the cylinder.

[0008] Furthermore, a guide bar positioning plate is installed at the upper end of the guide bar, and guide bar limiting grooves corresponding to the guide bar are evenly arranged on the lower surface of the guide bar positioning plate. The guide bar limiting grooves are provided with wire insertion holes for passing through wires.

[0009] Furthermore, two symmetrical circular holes are provided on the lower surface of the bottom cover to facilitate screwing the bottom cover into the base.

[0010] Furthermore, the bottom cover, base, cylinder and top cover are all made of aluminum alloy, and the guide strip positioning plate is made of plastic.

[0011] Furthermore, an O-ring is provided between the upper end of the base and the lower end of the cylinder, and an O-ring is provided between the lower end of the top cover and the upper end of the cylinder.

[0012] Furthermore, the lower part of the cylinder and the upper part of the base are circumferentially fixed by multiple waterproof screws.

[0013] Furthermore, the top of the cover is streamlined to reduce water flow resistance during the buoyancy process.

[0014] Furthermore, there are eight electrodes, four of which are connected to the positive terminal of the electrical control and communication module, and the other four are connected to the negative terminal of the electrical control and communication module.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention uses wires to connect the electrodes to the positive or negative poles of the electrical control communication module. Using wires to transmit signals not only improves the reliability and stability of signal transmission, but also increases the signal transmission speed due to the low signal delay of the wires. Furthermore, the present invention, combined with the guide strips installed on the cylinder, ensures that each wire passes straight through the grooves on the guide strips, avoiding the problem of insufficient load ejection height caused by the wires being entangled or stacked in the cylinder, which ultimately leads to load ejection failure.

[0016] This invention utilizes a chain for vertical fixation on the seabed, combined with eight electrodes installed via waterproof bolts passing through the lower part of the top cover. The conductivity of seawater ensures a closed loop between the positive and negative terminals of the electrical control and communication module, keeping the electrodes and module energized. Upon receiving a signal or a pre-set timed activation signal, the chain disengages, allowing the entire device to float stably until the top cover emerges from the water. Simultaneously, the energized electrical control and communication module and electrodes are quickly de-energized. The module immediately controls a trigger, activating a gas generator when its power reaches a set value. Under high-pressure gas, the guide rail positioning plate, top cover, and electrodes are simultaneously ejected, and the load is launched from the cylinder. Therefore, this invention is not only structurally simple but also achieves precise detection of the top cover's water discharge signal by utilizing the closed loop formed by the electrodes and the electrical control and communication module, and promptly and reliably transmits this signal to the trigger to launch the load. Attached Figure Description

[0017] Figure 1 is an isometric view of the present invention; Figure 2 is an isometric view of the bottom cover of the present invention; Figure 3 is a sectional view of the connection between the base and the bottom cover of the present invention; Figure 4 is a sectional view of the connection between the base and the cylinder of the present invention; Figure 5 is an isometric view of the guide strip of the present invention; Figure 6 is an isometric view of the connection between the cylinder and the guide strip of the present invention; Figure 7 is a sectional view of the connection between the cylinder and the top cover of the present invention; Figure 8 is a structural schematic diagram of the guide strip positioning plate of the present invention; Figure 9 is a top view of the cylinder, guide strip, load support and load connection of the present invention.

[0018] In the diagram, 1 is the bottom cover, 101 is the circular hole, 2 is the base, 3 is the cylinder, 301 is the positioning groove, 4 is the top cover, 5 is the electrical control and communication module, 6 is the trigger, 7 is the support block, 8 is the gas generator, 9 is the guide bar, 901 is the wire groove, 902 is the positioning pin, 10 is the wire, 11 is the load support, 1101 is the guide bar groove, 12 is the load, 13 is the waterproof threading bolt, 14 is the electrode, 15 is the guide bar positioning plate, 1501 is the guide bar limiting groove, and 1502 is the wire hole. Detailed Implementation

[0019] To further illustrate the technical solution of the present invention, the present invention will be further described below through embodiments.

[0020] As shown in Figures 1 to 9, an underwater vehicle cross-domain signal acquisition device includes a bottom cover 1. Two symmetrical circular holes 101 are provided on the lower surface of the bottom cover 1 to facilitate screwing the bottom cover 1 into a base 2. The bottom cover 1 is screwed to the lower part of the base 2. An electrical control and communication module 5 is installed inside the base 2. A support block 7 is provided above the electrical control and communication module 5. The support block 7 has a through hole for a wire 10 to pass through. A trigger 6 is embedded in the support block 7. A gas generator 8 is provided above the support block 7. The trigger 6 is electrically connected to the electrical control and communication module 5 and the gas generator 8. The gas generator 8 is used to fill high-pressure gas. The upper part of the base 2 is screwed to the lower part of the cylinder 3. To ensure a more secure connection between the base 2 and the cylinder 3, the lower part of the cylinder 3 and the upper part of the base 2 are circumferentially fixed by multiple waterproof screws. Multiple guide strips 9 are evenly installed circumferentially on the inner wall of the cylinder 3. Two positioning pins 902 are provided on the side of each guide strip 9 closest to the cylinder 3. A positioning groove 301 corresponding to the positioning pins 902 is provided in the upper part of the cylinder 3 to prevent relative rotation between the guide strips 9 and the cylinder 3. A wire-inserting groove 901 is provided on the side of each guide strip 9 closest to the inner wall of the cylinder 3 for the wire 10 to pass through straight. A load support 11 is provided inside the cylinder 3. Guide strip grooves 1101 corresponding to the guide strips 9 are evenly arranged circumferentially on the outer wall of the load support 11 to facilitate the connection between the guide strips 9 and the load support 11. The load holder 11 is installed on the upper surface of the gas generator 8. A load 12 is installed inside the load holder 11. To prevent the guide strip 9 from sliding up and down, a guide strip positioning plate 15 is installed at the upper end of the guide strip 9. The lower surface of the guide strip positioning plate 15 has guide strip limiting grooves 1501 corresponding to the guide strip 9, evenly distributed around its circumference. The guide strip limiting grooves 1501 have wire-inserting holes 1502 for passing through the wire 10. The upper part of the cylinder 3 is connected to the upper cover 4 via fine-pitch threads. To reduce water flow resistance during the device's ascent, the top of the upper cover 4 has a streamlined structure. Multiple waterproof threading bolts 13 are evenly fixed to the lower part of the upper cover 4 using waterproof adhesive. The waterproof threaded bolt 13 is used to install electrodes 14. Eight electrodes 14 are provided, four of which are connected to the positive terminal of the electrical control and communication module 5 via wires 10, and the other four are connected to the negative terminal of the electrical control and communication module 5. The electrodes 14 connected to the positive and negative terminals of the electrical control and communication module 5 are arranged in pairs, alternating. O-rings are provided between the upper end of the base 2 and the lower end of the cylinder 3, and between the lower end of the top cover 4 and the upper end of the cylinder 3, to ensure the entire device is sealed. The bottom cover 1, base 2, cylinder 3, and top cover 4 are all made of aluminum alloy, while the guide strip positioning plate 15 is made of plastic, ensuring that the buoyancy center of the device is located in the middle of its overall length.The center of gravity is located at the lower end of the overall structure, near the bottom. This increases the distance between the center of buoyancy and the center of gravity, ensuring the device remains vertically upright and does not tilt during ascent.

[0021] The foregoing has shown and described the main features and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cross-domain signal acquisition device for an underwater vehicle, characterized in that, The system includes a bottom cover (1), which is screwed to the lower part of a base (2). An electrical control and communication module (5) is installed inside the base (2). A support block (7) is installed above the electrical control and communication module (5). A trigger (6) is embedded in the support block (7). A gas generator (8) is installed above the support block (7). The trigger (6) is electrically connected to the electrical control and communication module (5) and the gas generator (8). The gas generator (8) is used to fill high-pressure gas. The upper part of the base (2) is screwed to the lower part of a cylinder (3). Multiple guide strips (9) are evenly installed circumferentially on the inner wall of the cylinder (3). A wire groove is provided on the side of the guide strip (9) near the inner wall of the cylinder (3). (901), the wire groove (901) is used to pass through the wire (10), the cylinder (3) is provided with a load holder (11), the outer wall of the load holder (11) is uniformly provided with guide strip grooves (1101) corresponding to the guide strip (9) in the circumferential direction, the load holder (11) is provided on the upper surface of the gas generator (8), the load holder (11) is provided with a load (12), the upper part of the cylinder (3) is screwed to the upper cover (4), the lower part of the upper cover (4) is uniformly fixed with multiple waterproof wire bolts (13) in the circumferential direction, the waterproof wire bolts (13) are used to install electrodes (14), the multiple electrodes (14) are respectively connected to the positive or negative pole of the electrical control communication module (5) through the wire (10).

2. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The support block (7) has a through hole through which the wire (10) passes.

3. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, Two positioning pins (902) are provided on the side of the guide bar (9) near the cylinder (3). The upper part of the cylinder (3) is provided with a positioning groove (301) corresponding to the positioning pins (902) to prevent relative rotation between the guide bar (9) and the cylinder (3).

4. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The upper end of the guide bar (9) is equipped with a guide bar positioning plate (15). The lower surface of the guide bar positioning plate (15) is uniformly provided with guide bar limiting grooves (1501) corresponding to the guide bar (9). The guide bar limiting groove (1501) is provided with a wire embedding hole (1502) for passing through the wire (10).

5. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The bottom cover (1) has two symmetrical circular holes (101) on its lower surface, which makes it easy for the bottom cover (1) to be screwed into the base (2).

6. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The bottom cover (1), base (2), cylinder (3) and top cover (4) are all made of aluminum alloy, and the guide strip positioning plate (15) is made of plastic.

7. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, An O-ring is provided between the upper end of the base (2) and the lower end of the cylinder (3), and an O-ring is provided between the lower end of the cover (4) and the upper end of the cylinder (3).

8. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The lower part of the cylinder (3) is circumferentially fixed to the upper part of the base (2) by a plurality of waterproof screws.

9. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, The top of the cover (4) is streamlined, which helps to reduce water flow resistance during the floating process.

10. The underwater vehicle cross-domain signal acquisition device according to claim 1, characterized in that, There are eight electrodes (14), four of which are connected to the positive terminal of the electrical control and communication module (5), and the other four are connected to the negative terminal of the electrical control and communication module (5).

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