Radio-based underwater terrain mapping detection device

Abstract

The application solves the problem of insufficient pressure resistance of the protective shell outside the detection head in the sonar terrain detector, relates to the underwater terrain mapping technology field, and particularly relates to an underwater terrain mapping detection device based on radio, which comprises a frame arranged on one side of a mapping main body, a winding disc rotatably connected in the frame, a sonar terrain detector connected to the tail end of a cable wound on the surface of the winding disc, a water-absorbing sponge arranged on the surface of the cable, a contraction assembly installed on the frame, the contraction assembly being linked with the winding disc and intermittently extruding the water-absorbing sponge, a pressure-resistant assembly installed in the sonar terrain detector, a protective shell arranged outside the detection head of the sonar terrain detector, and the pressure-resistant assembly comprising a piston type conduit inserted into the protective shell. The application realizes the dynamic balance of triggering the internal pressure-resistant mechanism by the external water pressure, actively offsets the extrusion of the underwater pressure on the protective shell 402, and ensures the high-pressure protection function of the protective shell at the detection head in the sonar terrain detector.

Description

Technical Field

[0001] This invention relates to the field of underwater topographic mapping technology, specifically to a radio-based underwater topographic mapping and detection device. Background Technology

[0002] In underwater environments, the probe of a sonar topographic detector is frequently subjected to impacts from water currents, sediment, and other underwater objects. Therefore, a protective outer shell is typically installed on the outside of the probe to provide an effective barrier. Additionally, sufficient space must be provided between the protective shell and the probe as a buffer zone and to optimize sound wave propagation, enabling the sonar probe to receive and transmit signals more effectively, thereby improving detection accuracy.

[0003] However, since the pressure resistance of the protective shell usually depends on the strength of its material, when there is a large reserved space inside the protective shell, this space may cause local deformation under the action of external water pressure. Especially in environments with greater water depth, the protective shell may not be able to withstand the water pressure, which may easily lead to plastic deformation or even cracking of the protective shell, thus affecting the application of the probe. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a radio-based underwater topographic mapping and detection device to solve the problem of insufficient pressure resistance of the protective shell outside the sonar topographic detector mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an underwater topographic mapping and detection device based on radio frequency, comprising a frame disposed on one side of the mapping body, a winding reel rotatably connected inside the frame, a sonar topographic detector connected to the end of a cable wound on the surface of the winding reel, a water-absorbing sponge covering the surface of the cable, a shrinking component installed on the frame, the shrinking component being linked with the winding reel to intermittently squeeze the water-absorbing sponge, and a pressure-resistant component installed inside the sonar topographic detector;

[0006] The sonar terrain detector's probe head is equipped with a protective outer shell;

[0007] The pressure-resistant component includes a piston-type conduit inserted into the protective shell. The outer wall of the piston-type conduit is connected to a limiting cylinder. A reinforcing structure is slidably connected inside the limiting cylinder. A double airbag system is provided inside the piston-type conduit and the limiting cylinder. When the part of the double airbag system located inside the piston-type conduit is compressed, the part of the double airbag system located inside the limiting cylinder expands, generating a pushing force on the reinforcing structure that approaches the inner wall of the protective shell.

[0008] Preferably, the dual-airbag system includes a main airbag located in a piston-type conduit and a secondary airbag located in a limiting cylinder, with a ventilation tube connecting the main airbag and the secondary airbag.

[0009] Preferably, the surface of the limiting cylinder is provided with a sliding groove;

[0010] A C-shaped plate is slidably fitted on the outer surface of the limiting cylinder, and the C-shaped plate is fixedly connected to the reinforcing structure along the sliding groove. A telescopic spring is provided between the surface of the C-shaped plate and the limiting cylinder.

[0011] Preferably, the piston-type conduit includes a channel pipe and an inlet pipe communicating with the channel pipe, and the channel pipe is provided with a piston structure and a push plate.

[0012] Preferably, the channel tube is arranged in a downward inclined manner from the inside to the outside of the protective shell, and the inclination angle of the channel tube is in the range of 30°-45°.

[0013] The inlet of the water inlet pipe is arranged downwards, and the width of the water inlet pipe gradually decreases from bottom to top.

[0014] Preferably, the shrinking assembly includes a grooved plate fixedly installed on both sides of the frame, guide grooves are provided on both sides of the frame, a movable plate is provided between the two guide grooves, and the movable plate is located below the absorbent sponge. A telescopic rod is fixedly installed on the winding reel, and the extension line of the telescopic rod intersects the axis of the winding reel.

[0015] Preferably, the movable plate includes a grooved plate two located below the absorbent sponge, with round rods rotatably connected to both sides of the grooved plate two, and the round rods passing through the guide groove;

[0016] When the round rod is in contact with the bottom wall of the guide groove, the horizontally arranged telescopic rod is in contact with the bottom of the round rod.

[0017] Preferably, the shrinkage assembly also includes an electric lead screw installed between the two sides of the frame, with a traction structure sleeved on the electric lead screw, and the cable passing through the second trough plate, the absorbent sponge, the first trough plate, and the traction structure in sequence from bottom to top.

[0018] By employing the above technical solution, the present invention provides an underwater topographic mapping and detection device based on radio waves, which has at least the following beneficial effects:

[0019] 1. The present invention achieves dynamic balance by using external water pressure to trigger the internal pressure resistance mechanism. Through the coordinated action of piston-type conduit pressure transmission, dual airbag system conversion, and pressurization structure execution, it actively counteracts the underwater pressure on the protective shell, ensuring the high-pressure protection function of the protective shell at the probe head in the sonar terrain detector.

[0020] 2. This invention achieves precise response, stable operation, and automatic reset of the reinforced structure under underwater pressure changes through the coordinated application of chute guidance, linkage transmission, and spring reset.

[0021] 3. This invention achieves increased water flow rate by using a water inlet pipe that is wider at the bottom and narrower at the top, allowing the water flow to impact the push plate with greater kinetic energy, effectively solving the problem of insufficient thrust under low water pressure.

[0022] 4. During the process of pulling the sonar topographic detector out of the water by winding the cable, the present invention can remove the water adhering to the surface of the cable by using a water-absorbing sponge. In addition, under the linkage between the shrinking component and the winding reel, the water-absorbing sponge can be squeezed intermittently to expel the saturated water and restore its water absorption capacity. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the installation structure of the pressure-resistant component and the protective shell of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the anti-compression component of the present invention;

[0027] Figure 4 This is a schematic diagram of the reinforcing structure and C-shaped plate of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the piston-type conduit of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the limiting cylinder and the sliding groove of the present invention;

[0030] Figure 7 This is a schematic diagram of the installation structure of the shrinkage component and the frame of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the movable plate of the present invention.

[0032] In the diagram: 1. Main surveying unit; 2. Frame; 201. Guide groove; 3. Reel; 301. Cable; 302. Absorbent sponge; 4. Sonar terrain detector; 401. Detector head; 402. Protective shell; 5. Shrink assembly; 501. Groove plate one; 502. Movable plate; 5021. Groove plate two; 5022. Round rod; 503. Telescopic rod; 504. Electric lead screw; 505. Traction structure; 6. Pressure-resistant assembly; 601. Piston-type conduit; 6011. Channel pipe; 6012. Water inlet pipe; 6013. Piston structure; 6014. Push plate; 602. Limiting cylinder; 6021. Slide groove; 603. Reinforcing structure; 6031. C-shaped plate; 6032. Telescopic spring; 604. Dual airbag system; 6041. Main airbag; 6042. Secondary airbag; 6043. Ventilation pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] Example 1

[0035] Please see Figures 1-8 This embodiment proposes a radio-based underwater topographic mapping and detection device that can effectively protect the sonar topographic detector 4 from high voltage. It includes a frame 2 located on one side of the mapping body 1, with a winding reel 3 rotatably connected inside the frame 2. The cable 301 wound on the surface of the winding reel 3 is connected to the sonar topographic detector 4 at its end. The rotation of the winding reel 3 can be set to manual or electric, allowing it to rotate clockwise or counterclockwise to wind up or unwind the cable 301.

[0036] The sonar terrain detector 4 has a pressure-resistant component 6 installed inside, and a protective shell 402 is provided on the outside of the detector head 401 of the sonar terrain detector 4.

[0037] To prevent the probe head 401 of the sonar terrain detector 4 from being impacted by underwater objects, a protective outer shell 402 needs to be installed on the outside of the probe head 401. Additionally, to optimize the sound wave propagation of the probe head 401, sufficient space needs to be reserved between the protective outer shell 402 and the probe head 401. However, this space may cause localized deformation under external water pressure, especially in deep water environments, where the protective outer shell 402 may not be able to withstand the water pressure, potentially leading to plastic deformation or even rupture. Therefore, this embodiment, by equipping the protective outer shell 402 with a pressure-resistant component 6, can convert underwater dynamic pressure into a stable reverse support force.

[0038] like Figures 2-6 As shown, the pressure-resistant component 6 includes a piston-type conduit 601 inserted into the protective shell 402. The outer wall of the piston-type conduit 601 is connected to a limiting cylinder 602. A reinforcing structure 603 is slidably connected inside the limiting cylinder 602. A double airbag system 604 is provided inside the piston-type conduit 601 and the limiting cylinder 602. When the part of the double airbag system 604 located inside the piston-type conduit 601 is compressed, the part of the double airbag system 604 located inside the limiting cylinder 602 expands, forming a pushing force on the reinforcing structure 603 that approaches the inner wall of the protective shell 402.

[0039] In the above structure, the piston-type conduit 601 serves as the channel for external water pressure to enter the interior. It houses the main airbag 6041 of the dual-airbag system 604 and guides water flow through its structure, converting underwater pressure into compressive force on the main airbag 6041. The limiting cylinder 602 provides a "track" for the reinforcing structure 603. Its internal space accommodates the auxiliary airbag 6042 of the dual-airbag system 604, and its structure restricts the movement direction of the reinforcing structure 603, preventing it from shifting or swaying and ensuring accurate force transmission. The reinforcing structure 603 is the "actuator" of the pressure-resistant component 6. When the auxiliary airbag 6042 inflates, it is thrust and slides along the limiting cylinder 602.

[0040] In practical applications, when the sonar topography detector 4 is submerged underwater, external water pressure is transmitted to the interior through the piston-type conduit 601, pressurizing the main airbag 6041. Subsequently, the gas in the main airbag 6041 flows into the auxiliary airbag 6042 through the vent pipe 6043, causing the auxiliary airbag 6042 to expand within the limiting cylinder 602. The gradually expanding auxiliary airbag 6042 pushes the reinforcing structure 603 to slide along the limiting cylinder 602 and approach the inner wall of the protective shell 402. Through the contact / compression with the inner wall of the protective shell 402, a reverse support force is formed to resist the external water pressure, directly offsetting the impact of the external pressure on the protective shell 402.

[0041] In summary, this embodiment achieves dynamic balance by triggering an internal pressure-resistant mechanism using external water pressure. Through the cooperation of the mechanical structure and the dual airbag system 604, the external water pressure is converted into a driving force that directs the gas in the main airbag 6041 into the auxiliary airbag 6042. This causes the reinforcing structure 603 to adhere to / compress the inner wall of the protective shell 402, actively counteracting the underwater pressure on the protective shell 402 and protecting the internal probe 401 from high-pressure damage.

[0042] Example 2

[0043] Following the first embodiment described above, when the reinforcing structure 603 is adjusted to fit the inner wall of the protective shell 402, as the sonar terrain detector 4 is removed from the water, the reinforcing structure 603 cannot move independently upwards to return to its original position because the limiting cylinder 602 is arranged at an angle. Therefore, as... Figures 3-6 As shown, a groove 6021 is provided on the surface of the limiting cylinder 602, and a C-shaped plate 6031 is slidably sleeved on the outer surface of the limiting cylinder 602. The C-shaped plate 6031 and the reinforcing structure 603 are fixedly connected along the groove 6021. A telescopic spring 6032 is provided between the surface of the C-shaped plate 6031 and the limiting cylinder 602. In actual application, when the entire sonar terrain detector 4 is removed from the water, it indicates that the squeezing force of the water on the main airbag 6041 along the piston-type conduit 601 is removed. At this time, the gas inside the originally inflated auxiliary airbag 6042 gradually flows back into the main airbag 6041. At the same time, in conjunction with the elasticity and restoring effect of the telescopic spring 6032, an upward pulling force is generated on the C-shaped plate 6031, which causes the reinforcing structure 603 to quickly return to its original position, preparing for the next action when the pressure changes.

[0044] In addition, when pressure fluctuates, the preload of the spring can help the reinforcing structure 603 maintain pressure on the inner wall of the protective shell 402, thereby enhancing the response sensitivity of the pressure-resistant component 6.

[0045] In summary, the guiding function of the slide groove 6021 ensures that the reinforcing structure 603 can accurately respond to pressure changes (through the expansion / contraction of the main airbag 6041 and the auxiliary airbag 6042 in the dual airbag system 604), and stably fit against the inner wall of the protective shell 402 to resist external pressure; while the reset function of the telescopic spring 6032 ensures that the structure can quickly recover when the pressure decreases, avoiding long-term deformation under pressure; the C-shaped plate 6031 enables the reinforcing structure 603 and the telescopic spring 6032 to work together.

[0046] As can be seen, this embodiment achieves precise response, stable operation, and automatic reset of the reinforced structure 603 under underwater pressure changes through the coordinated application of chute guidance, linkage transmission, and spring reset. It not only meets the needs of complex underwater pressure environments, but also extends the life of the device through designs such as force distribution and buffer protection.

[0047] Example 3

[0048] To accelerate the transition rate of gas from the main gasbag 6041 to the auxiliary gasbag 6042 after the sonar terrain detector 4 enters the water, such as... Figures 5-6 As shown, the piston-type conduit 601 is divided into four parts: a channel pipe 6011, a water inlet pipe 6012 connected to the channel pipe 6011, a piston structure 6013 and a pusher plate 6014 installed inside the channel pipe 6011. When the entire sonar terrain detector 4 is submerged in water, water will enter the channel pipe 6011 along the water inlet pipe 6012 and generate an upward oblique thrust along the inner wall of the channel pipe 6011 on the pusher plate 6014 and the piston structure 6013, converting the dispersed water pressure into a concentrated mechanical thrust, thereby ensuring that the dual airbag system 604 can accurately respond to changes in water pressure.

[0049] It is worth mentioning that the channel tube 6011 is arranged in a downward inclined manner from the inside to the outside of the protective shell 402, with an inclination angle ranging from 30° to 45°. Compared to a horizontal channel, the water flow is less resistant when inclined, which helps to push the piston structure 6013 more effectively and reduces additional energy loss. Furthermore, after the sonar terrain detector 4 is removed from the water, the water that entered the channel tube 6011 can be discharged naturally downwards without any additional treatment.

[0050] In addition, the inlet of the water inlet pipe 6012 is arranged downwards, which can directly withstand the static pressure of the water below, ensuring that the water flow can actively flow into the channel pipe 6011 along the water inlet pipe 6012. The width of the water inlet pipe 6012 gradually decreases from bottom to top. The bottom of the water inlet pipe 6012 is wider, which can accommodate more water flow. The upper part is narrower, which increases the speed of the water flow so that it can impact the push plate 6014 with greater kinetic energy. This effectively solves the problem of insufficient thrust under low water pressure and ensures that in shallow water areas with low water pressure, the increased water flow can still drive the piston structure 6013 to trigger the dual airbag system 604.

[0051] As can be seen, the components of the piston-type conduit 601 have a clear division of labor to achieve the linkage of water intake, pressure transmission and triggering. The tilt angle of the channel pipe 6011 balances the thrust and space. The orientation and width changes of the water intake pipe 6012 take into account both anti-clogging and power amplification, ultimately ensuring that the pressure-resistant component 6 can dynamically respond to changes in underwater pressure and enhance the durability of the sonar terrain detector 4.

[0052] Example 4

[0053] When the winding reel 3 is rotated to remove and wind up the cable 301 from the water, a large amount of water will adhere to the surface of the cable 301. If this water is not treated before winding, it will corrode the surface material of the cable 301. To effectively solve this problem, such as... Figure 1 , Figures 7-8As shown, in this embodiment, the surface of the cable 301 is covered with an absorbent sponge 302. A shrinking assembly 5 is installed on the frame 2. The shrinking assembly 5 specifically includes a groove plate 501 fixedly installed on both sides of the frame 2. Guide grooves 201 are opened on both sides of the frame 2. A movable plate 502 is provided between the two guide grooves 201, and the movable plate 502 is located below the absorbent sponge 302. A telescopic rod 503 is fixedly installed on the winding reel 3. The extension line of the telescopic rod 503 intersects the axis of the winding reel 3. When the winding reel 3 is rotated to gradually pull the cable 301 upward from the water, the absorbent sponge 302 can be used to scrape and absorb the water adhering to the surface of the cable 301. At the same time, for each rotation of the winding reel 3, the telescopic rod 503 rotates circumferentially around the axis of the winding reel 3. Furthermore, since the horizontally arranged telescopic rod 503 is attached to the bottom of the round rod 5022 when it is against the bottom wall of the guide groove 201, the telescopic rod 503 exerts an upward pushing force on the movable plate 502 with each rotation, causing the movable plate 502 to move upward along the path of the guide groove 201. During this process, it exerts a squeezing force on the absorbent sponge 302, causing the absorbent sponge 302 to expel water and restore its absorbency. In addition, when the telescopic rod 503 rotates and pushes the movable plate 502 to the top where it is against the top wall of the guide groove 201, the end of the telescopic rod 503 will detach from the movable plate 502.

[0054] Following the above, the movable plate 502 includes a grooved plate 5021 located below the absorbent sponge 302. Both sides of the grooved plate 5021 are rotatably connected to round rods 5022, and the round rods 5022 pass through the guide groove 201. For example... Figure 7 and Figure 8 As shown, during the rotation of the telescopic rod 503, its end is in contact with the bottom of the round rod 5022. In addition, the round rod 5022 itself can rotate along the connection of the groove plate 5021 under the action of external force, thereby facilitating the smooth disengagement of the telescopic rod 503 from the movable plate 502.

[0055] Specifically, the shrink assembly 5 also includes an electric lead screw 504 installed between the two sides of the frame 2. A traction structure 505 is sleeved on the electric lead screw 504. The cable 301 passes through the second trough plate 5021, the absorbent sponge 302, the first trough plate 501, and the traction structure 505 from bottom to top. After the electric lead screw 504 is running, it can control the traction structure 505 to slide left and right, thereby driving the cable 301 to move laterally, which facilitates the orderly arrangement and winding of the cable 301 with the winding reel 3.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A radio-based underwater topographic mapping and detection device, comprising a frame (2) disposed on one side of the mapping body (1), characterized in that: The frame (2) is rotatably connected to a winding reel (3). The cable (301) wound on the surface of the winding reel (3) is connected to a sonar terrain detector (4). The surface of the cable (301) is covered with a water-absorbing sponge (302). A shrinking component (5) is installed on the frame (2). The shrinking component (5) is linked with the winding reel (3) to intermittently squeeze the water-absorbing sponge (302). An anti-pressure component (6) is installed inside the sonar terrain detector (4). The sonar terrain detector (4) has a protective shell (402) on the outside of the probe (401). The pressure-resistant component (6) includes a piston-type conduit (601) inserted into the protective shell (402). The outer wall of the piston-type conduit (601) is connected to a limiting cylinder (602). A reinforcing structure (603) is slidably connected inside the limiting cylinder (602). A double airbag system (604) is provided inside the piston-type conduit (601) and the limiting cylinder (602). When the part of the double airbag system (604) located inside the piston-type conduit (601) is compressed, the part of the double airbag system (604) located inside the limiting cylinder (602) expands, forming a pushing force on the reinforcing structure (603) close to the inner wall of the protective shell (402). The shrinking assembly (5) includes a groove plate (501) fixedly installed on both sides of the frame (2). Guide grooves (201) are provided on both sides of the frame (2). A movable plate (502) is provided between the two guide grooves (201). The movable plate (502) is located below the absorbent sponge (302). A telescopic rod (503) is fixedly installed on the winding reel (3). The extension line of the telescopic rod (503) intersects the axis of the winding reel (3). The shrinking assembly (5) also includes an electric screw (504) installed between the two sides of the frame (2). A traction structure (505) is sleeved on the electric screw (504). The cable (301) passes through the second trough plate (5021), the water-absorbing sponge (302), the first trough plate (501) and the traction structure (505) from bottom to top.

2. The underwater topographic mapping and detection device based on radio frequency according to claim 1, characterized in that: The dual-airbag system (604) includes a main airbag (6041) located in a piston-type conduit (601) and a secondary airbag (6042) located in a limiting cylinder (602), with a ventilation tube (6043) connecting the main airbag (6041) and the secondary airbag (6042).

3. The underwater topographic mapping and detection device based on radio frequency according to claim 1, characterized in that: The surface of the limiting cylinder (602) is provided with a sliding groove (6021); The outer surface of the limiting cylinder (602) is slidably fitted with a C-shaped plate (6031), and the C-shaped plate (6031) is fixedly connected to the reinforcing structure (603) along the slide groove (6021). A telescopic spring (6032) is provided between the surface of the C-shaped plate (6031) and the limiting cylinder (602).

4. The underwater topographic mapping and detection device based on radio frequency according to claim 1, characterized in that: The piston-type conduit (601) includes a channel pipe (6011) and an inlet pipe (6012) connected to the channel pipe (6011). The channel pipe (6011) is provided with a piston structure (6013) and a push plate (6014).

5. The underwater topographic mapping and detection device based on radio frequency according to claim 4, characterized in that: The channel tube (6011) extends from the inside to the outside of the protective shell (402) in an inclined manner from top to bottom, and the inclination angle of the channel tube (6011) is in the range of 30°-45°. The inlet of the water inlet pipe (6012) is arranged downwards, and the width of the water inlet pipe (6012) gradually decreases from bottom to top.

6. The underwater topographic mapping and detection device based on radio frequency according to claim 1, characterized in that: The movable plate (502) includes a groove plate two (5021) located below the water-absorbing sponge (302), and round rods (5022) are rotatably connected to both sides of the groove plate two (5021), and the round rods (5022) pass through the guide groove (201). When the round rod (5022) is in contact with the bottom wall of the guide groove (201), the horizontally arranged telescopic rod (503) is in contact with the bottom of the round rod (5022).

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