A multifunctional maintenance platform for ship water depth sensor

Abstract

This invention relates to the field of water depth sensor testing technology and discloses a multifunctional maintenance platform for ship water depth sensors, including a test platform and a mounting platform. A high-pressure cylinder is fixedly connected to the top of the mounting platform. A sealing cover is fixedly connected to the outer wall of the top of the high-pressure cylinder by bolt one. A water depth sensor is fixedly connected to the inner wall of the sealing cover by bolt two. An external high-pressure water pump is started to deliver pure water, which enters the inner cavity of the high-pressure cylinder from the bottom. As the pure water is continuously injected, it pushes the hollow piston ring and the semi-circular piston ring to rise. The two semi-circular piston rings are separated by an energy storage component and a locking component to form a flow channel. The pure water flows upward from the flow channel. Through the cooperation of the hollow piston ring and the semi-circular piston ring, the space at the bottom of the inner wall of the high-pressure cylinder is occupied in the initial stage of water injection, making it difficult for the pure water to directly contact the gas in the inner cavity of the high-pressure cylinder. This effectively prevents the problem of water easily mixing with gas and forming bubbles due to the initial high flow velocity of the water.

Description

Technical Field

[0001] This invention relates to the field of water depth sensor testing equipment technology, specifically a multi-functional maintenance platform for ship water depth sensors. Background Technology

[0002] Ship depth sensors are core sensing devices for ship navigation, navigation safety, and seabed exploration. They are used to measure the vertical distance from the ship to the seabed / underwater obstacles in real time, providing critical data for reef avoidance, anchoring, submersible navigation, and channel mapping. The mainstream types of sensors include pressure depth sensors, echo sounders, and Doppler depth / current velocity integrated sensors. The multi-functional maintenance platform for ship depth sensors is mainly used for performance testing, fault diagnosis, maintenance, and calibration of ship depth measurement equipment (such as echo sounders and pressure depth gauges) and their core components (such as transducers).

[0003] When testing pressure-type depth sensors, the sensor is often installed inside a high-pressure cylinder. High-pressure liquid is then injected into the cylinder to simulate water depth, thereby testing the sensor's accuracy. However, during the liquid injection process, the high-speed jet of liquid from the injection port creates strong turbulence inside the cylinder, directly entraining air and potentially generating numerous tiny bubbles. These bubbles may slowly dissolve in the liquid during the pressure holding phase, causing a slow decrease in pressure inside the high-pressure cylinder. This could result in a lower detection pressure, affecting the accuracy of the test. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a multi-functional maintenance platform for ship depth sensors, including a test platform and a mounting platform. A high-pressure cylinder is fixedly connected to the top of the mounting platform. A sealing cover is fixedly connected to the outer wall of the top of the high-pressure cylinder by a bolt, and a depth sensor is fixedly connected to the inner wall of the sealing cover by a bolt. The platform also includes: A blocking mechanism is slidably installed on the inner wall of the high-pressure cylinder; The opening and closing mechanism is slidably installed on the inner wall of the high-pressure cylinder; The limiting mechanism is fixedly installed on the inner wall of the high-pressure cylinder; The sealing cover is fixed or separated from the high-pressure cylinder by installing or removing bolt one, and the water depth sensor is fixed or separated from the sealing cover by installing or removing bolt two. When the water depth sensor needs to be tested, the test liquid is injected into the high-pressure cylinder by an external high-pressure water pump.

[0005] Preferably, the blocking mechanism includes: The barrier assembly is slidably disposed on the inner wall of the high-pressure cylinder; A sliding component is fixedly mounted on top of the barrier component; Once the liquid enters the high-pressure cylinder, it will push the blocking component and the sliding component upward.

[0006] Preferably, the opening and closing mechanism includes: An energy storage component is slidably disposed on the inner wall of the high-pressure cylinder; The engaging assembly is fixedly installed on the inner wall of the high-pressure cylinder; When the blocking component rises, it squeezes the energy storage component and blocks the energy storage component through the locking component. At this time, the energy storage component cannot move temporarily, thus accumulating elastic potential energy.

[0007] Preferably, the limiting mechanism includes: The extrusion assembly is fixedly installed on the inner wall of the high-pressure cylinder; The sealing assembly is fixedly installed on the bottom inner wall of the sealing cover; When the blocking component rises, it pushes the squeezing component to rise, and the blocking component restricts the squeezing component from falling.

[0008] Preferably, the blocking assembly includes a hollow piston ring slidably connected to the bottom of the inner wall of the high-pressure cylinder, a sealing ring 1 fixedly connected to the outer wall of the hollow piston ring, and two semi-circular piston rings slidably connected to the inner wall of the hollow piston ring. The two semi-circular piston rings are arranged in a mirror symmetrical manner. A sealing strip is fixedly connected to the side of the two semi-circular piston rings away from the inner wall of the high-pressure cylinder. An arc-shaped sealing strip is fixedly connected to the top and bottom of the two semi-circular piston rings. When using the water depth sensor, the sensor is installed on the inner wall of the sealing cover using bolt two. After installation, the sealing cover is installed on the top of the high-pressure cylinder using bolt one. Then, the data wire on the top of the water depth sensor is connected to the connector in the test bench. The bottom of the high-pressure cylinder is then connected to an external high-pressure water pump. The external high-pressure water pump is then started to deliver pure water into the inner cavity of the high-pressure cylinder from the bottom. The purified water is blocked by the hollow piston ring and the semi-circular piston ring. As the purified water is continuously injected, it pushes the hollow piston ring and the semi-circular piston ring to rise, which in turn compresses the gas in the high-pressure cylinder and discharges it through the exhaust valve.

[0009] Preferably, the sliding assembly includes a connecting bracket fixedly connected to the top of the semi-circular piston ring, and the two connecting brackets are arranged in a mirror symmetrical manner; Both connecting frames have slidably connected limit rods on their inner walls, and both limit rods have inclined rods fixedly connected to their tops. When the semi-circular piston ring rises, it will cause the connecting bracket to rise as well.

[0010] Preferably, the energy storage assembly includes a sliding ring slidably connected to the inner wall of the high-pressure cylinder, and two sliding rods are fixedly connected to the top of the hollow piston ring. The two sliding rods are arranged in a mirror symmetrical manner, and two compression springs are sleeved on the outer wall of each of the two sliding rods. The outer walls of both sliding rods are slidably connected to the inner wall of the sliding ring, and the inner wall of the sliding ring is rotatably connected to two connecting rods. The inner walls of the two connecting rods are rotatably connected to the tops of the two inclined rods. The hollow piston ring drives the sliding rod to rise, which in turn pushes the compression spring at the bottom to rise, causing the compression spring to contact the bottom of the sliding ring.

[0011] Preferably, the engaging assembly includes two Z-shaped rods fixedly connected to the top of the hollow piston ring, and two fixing sleeves fixedly connected to the inner wall of the high-pressure cylinder; The inner walls of both fixed sleeves are slidably connected to the outer walls of the two inclined rods. The top inner walls of both fixed sleeves are slidably connected to spring locking rod one, and the bottom inner walls of both fixed sleeves are slidably connected to spring locking rod two. The outer walls of the two spring-loaded locking rods are slidably connected to the inner walls of the two inclined rods, and the outer walls of the two spring-loaded locking rods are slidably connected to the inner walls of the two inclined rods. The two spring-loaded locking rods are normally in a compressed state. As the spring locking rod is inserted into the limiting hole of the inclined rod, it restricts the left and right sliding of the inclined rod. The inclined rod is hinged to the sliding ring through the connecting rod. Therefore, the sliding ring cannot rise temporarily, which will block the compression spring at the bottom. As the sliding rod continues to move, the compression spring at the bottom will be continuously compressed, accumulating elastic potential energy. As the hollow piston ring rises, it also drives the Z-shaped rod to rise. After the Z-shaped rod rises, it separates from the second spring-loaded locking rod. Since the second spring-loaded locking rod is in a compressed state, its accumulated rebound force will be released, causing it to return to its original position and protrude inside the fixed sleeve. As the Z-shaped rod continues to rise, it will contact the first spring-loaded locking rod. The Z-shaped rod will then push the first spring-loaded locking rod to rise, allowing it to accumulate rebound force until the first spring-loaded locking rod disengages from the limiting hole of the inclined rod. At this point, the obstruction to the inclined rod disappears, and the accumulated elastic potential energy of the compression spring at the bottom will be released, pushing the sliding ring to rise. The sliding ring will pull the inclined rod towards the inner wall of the high-pressure cylinder through the connecting rod. When the inclined rod moves, it will drive the limiting rod, connecting frame, and semi-circular piston ring to move synchronously, causing the two semi-circular piston rings to separate, removing the obstruction to the pure water and forming a flow channel. Pure water flows upward from the flow channel. As the pure water slowly fills the inner cavity of the high-pressure cylinder, it pushes the gas in the high-pressure cylinder to be slowly discharged through the exhaust valve until the high-pressure cylinder is filled with pure water. Then the exhaust valve is closed, and the pure water in the high-pressure cylinder is pressurized by an external high-pressure water pump to simulate the pressure environment of different water depths. After the pressure is maintained for a set time, the performance of the water depth sensor is tested and the accuracy is calibrated. By using a combination of hollow piston rings and semi-circular piston rings, the space at the bottom of the inner wall of the high-pressure cylinder is occupied during the initial water injection phase. This makes it difficult for pure water to directly contact the gas inside the high-pressure cylinder, effectively preventing the formation of bubbles due to the initial high flow rate of water mixing with gas. During subsequent water injection, the pure water at the bottom of the hollow piston rings can buffer the impact of the subsequent water flow, reduce the water injection velocity, and allow the gas inside the high-pressure cylinder to be slowly compressed and fully discharged through the exhaust valve. This significantly reduces the generation of microbubbles and solves the problem of a large number of microbubbles being generated during water injection in the high-pressure cylinder, and the bubbles slowly dissolving in pure water during the pressure holding phase, leading to pressure decay and reduced detection accuracy. It can maintain a uniform and stable pressure, realistically simulate the deep water environment, and ensure the accuracy of the depth sensor detection results.

[0012] Preferably, the extrusion assembly includes a fixing ring fixedly connected to the inner wall of the high-pressure cylinder, and a liquid storage cylinder is fixedly connected to the bottom of the fixing ring; A spring piston bracket is fixedly connected to the top of the hollow piston ring, and the inner wall of the liquid storage cylinder is slidably connected to the outer wall of the spring piston bracket. The liquid storage cylinder is filled with pure water. A sealing ring 2 is fixedly connected to the top outer wall of the spring piston frame, and a sealing ring 1 is fixedly connected to the inner wall of each of the two liquid storage cylinders. The inner wall of the sealing ring 1 is slidably connected to the outer wall of the spring piston frame, and the spring piston frame is in a compressed state. When the hollow piston ring rises, it will drive the spring piston frame to rise, causing the spring piston frame to accumulate rebound force. The rise of the spring piston frame will squeeze the pure water in the liquid storage cylinder.

[0013] Preferably, the sealing assembly includes two connecting pipes that are connected through the inner wall of the fixed ring, a baffle plate is fixedly connected to the bottom of the inner wall of the sealing cap, and inclined spring rods are slidably connected to the inner walls of the two connecting pipes. The inner walls of the two connecting pipes are fixedly connected with sealing rings two, and the inner walls of the two sealing rings two are slidably connected to the outer walls of the two inclined spring rods. In this process, the purified water will squeeze the inclined spring rod on the right side to move. The inclined spring rod on the right side will separate from the inclined surface of the right connecting pipe, removing the obstruction to the right connecting pipe. The purified water will then flow through the right connecting pipe to the bottom of the spring piston frame. When the two semicircular piston rings move away from each other, the purified water will flow upwards, reducing the thrust on the hollow piston ring and the semicircular piston ring. At this time, the rebound force of the spring piston frame will be released, allowing it to return to its original position. When the spring piston frame descends, it will squeeze the purified water at its bottom again, allowing it to flow through the spring locking rod on the left. However, the inclined spring rod on the left is blocked by the baffle plate, so it cannot move and will block the flow of purified water, thus preventing the spring piston frame from descending and keeping the hollow piston ring stationary. This effectively prevents the pushing force of the purified water on the hollow piston ring from weakening. The release of the rebound force of the spring piston frame will push the hollow piston ring downwards, squeezing the purified water at its bottom. This can easily cause the flow velocity of the water between the two semicircular piston rings to increase sharply, generating eddies that mix with the gas again to form bubbles.

[0014] The present invention has the following beneficial effects: (1) When using this invention, an external high-pressure water pump is started to deliver pure water, which enters the inner cavity of the high-pressure cylinder from the bottom. As the pure water is continuously injected, it will push the hollow piston ring and the semi-circular piston ring to rise. The two semi-circular piston rings are separated by the energy storage component and the locking component to form a flow channel. The pure water will flow upward from the flow channel. Through the cooperation of the hollow piston ring and the semi-circular piston ring, it occupies the space at the bottom of the inner wall of the high-pressure cylinder in the early stage of water injection, making it difficult for the pure water to directly contact the gas in the inner cavity of the high-pressure cylinder. This effectively prevents the problem of bubbles forming due to the high initial flow rate of water mixing with gas. In the subsequent water injection process, the pure water at the bottom of the hollow piston ring can buffer the impact of the subsequent water injection flow, greatly reducing the generation of micro bubbles. This solves the problem that a large number of micro bubbles generated in the high-pressure cylinder during water injection will slowly dissolve in the pure water, leading to the attenuation of the test pressure.

[0015] (2) When the hollow piston ring of the present invention rises, it will drive the spring piston frame to rise, so that the spring piston frame accumulates rebound force. The rise of the spring piston frame will squeeze the pure water in the storage cylinder and flow to the bottom of the spring piston frame through the connecting pipe on the right. When the two semi-circular piston rings move away from each other, the pushing force of the pure water on the hollow piston ring weakens. At this time, the rebound force of the spring piston frame will be released. The sealing component will block the spring piston frame from falling, so that the hollow piston ring remains stationary. This effectively prevents the pure water from weakening its pushing force on the hollow piston ring. The release of the rebound force of the spring piston frame will push the hollow piston ring to fall, squeezing the pure water at its bottom. This will easily cause the water flow velocity between the two semi-circular piston rings to increase sharply, generating vortex and mixing with the gas again to form bubbles.

[0016] (3) When the inclined rod moves toward the inner wall of the high-pressure cylinder, as the inclined rod continues to move, the inclined surface of the inclined rod will squeeze the second spring locking rod to descend, so that the second spring locking rod accumulates rebound force. Since the rebound force of the squeeze spring is released quickly, it will drive the sliding ring to move quickly. When the sliding ring moves quickly and collides with the fixed ring, it will be subjected to a reaction force and rebound down, which will drive the inclined rod to move back. When the second spring locking rod is aligned with the limiting hole of the inclined rod, the second spring locking rod will be inserted into the limiting hole of the inclined rod, restricting the movement of the inclined rod and fixing the semi-circular piston ring in the separated state, ensuring that the water flow channel is continuously open, effectively preventing the high-pressure pure water from pushing the semi-circular piston ring toward the inner wall of the high-pressure cylinder when high pressure is applied to the pure water in the high-pressure cylinder, resulting in an increase in the space inside the high-pressure cylinder.

[0017] (4) When the spring releases its rebound force and pushes the sliding ring to rise, the connecting rod will simultaneously drive the inclined rod, connecting frame and semi-circular piston ring to move. When the two semi-circular piston rings are not separated, the pressure of pure water on the bottom of the semi-circular piston ring is large, which will increase the resistance to its movement, thereby slowing down the initial rebound speed of the spring. When the sliding ring moves faster, it will rebound and drive the two semi-circular piston rings to move closer to each other again. At this time, the flow cross section of the pure water flowing between the two semi-circular piston rings will gradually become smaller, which will generate a large flow resistance, which will increase the return resistance of the semi-circular piston ring, slow down the return speed of the semi-circular piston ring and the inclined rod, and provide sufficient action time for the spring locking rod 2 to be locked into the limiting hole of the inclined rod, so that the spring locking rod 2 can be accurately inserted into the inclined rod. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the high-pressure cylinder of the present invention; Figure 4 This is a schematic cross-sectional view of the hollow piston ring of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the hollow piston ring of the present invention; Figure 6 This is a top sectional view of the hollow piston ring of the present invention; Figure 7 This is a cross-sectional schematic diagram of the connecting frame of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic cross-sectional view of the hollow piston ring of the present invention from the right side. Figure 10 This is a schematic cross-sectional view of the liquid storage cylinder of the present invention from the right side; Figure 11 For the present invention Figure 10 Enlarged view of point B in the middle; Figure 12 This is a schematic cross-sectional view of the connecting pipe of the present invention; Figure 13 This is a schematic diagram of the spring piston frame structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Blocking mechanism; 11. Blocking assembly; 12. Sliding assembly; 13. Test platform; 14. Mounting platform; 15. High-pressure cylinder; 16. Sealing cap; 17. Water depth sensor; 111. Hollow piston ring; 112. Semi-circular piston ring; 121. Connecting frame; 122. Limiting rod; 123. Inclined rod; 2. Opening and closing mechanism; 21. Energy storage assembly; 22. Engaging assembly; 211. Sliding ring; 212. Sliding rod; 213. Compression spring; 214. Connecting rod; 221. Fixed sleeve; 222. Spring engaging rod one; 223. Spring engaging rod two; 224. Z-shaped rod; 3. Limiting mechanism; 31. Compression assembly; 32. Sealing assembly; 311. Fixed ring; 312. Liquid storage cylinder; 313. Spring piston frame; 321. Blocking plate; 322. Connecting pipe; 323. Inclined spring rod. Detailed Implementation

[0021] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figures 1-6 This invention relates to a multi-functional maintenance platform for ship depth sensors, comprising a test platform 13 and a mounting platform 14. A high-pressure cylinder 15 is fixedly connected to the top of the mounting platform 14. A sealing cover 16 is fixedly connected to the outer wall of the top of the high-pressure cylinder 15 by a bolt 1. A depth sensor 17 is fixedly connected to the inner wall of the sealing cover 16 by a bolt 2. The platform also includes: The blocking mechanism 1 is slidably disposed on the inner wall of the high-pressure cylinder 15; Opening and closing mechanism 2 is slidably disposed on the inner wall of high pressure cylinder 15; Limiting mechanism 3 is fixedly installed on the inner wall of high pressure cylinder 15; Specifically, by installing or removing bolt one, the sealing cover 16 is fixed or separated from the high-pressure cylinder 15; by installing or removing bolt two, the water depth sensor 17 is fixed or separated from the sealing cover 16; when the water depth sensor 17 needs to be tested, the test liquid is injected into the high-pressure cylinder 15 by an external high-pressure water pump.

[0023] The blocking mechanism 1 includes: The blocking assembly 11 is slidably disposed on the inner wall of the high-pressure cylinder 15; Sliding component 12 is fixedly disposed on the top of blocking component 11; When the liquid enters the high-pressure cylinder 15, it will push the blocking component 11 and the sliding component 12 upward.

[0024] Opening and closing mechanism 2 includes: Energy storage component 21 is slidably disposed on the inner wall of high pressure cylinder 15; The engaging component 22 is fixedly installed on the inner wall of the high-pressure cylinder 15; When the blocking component 11 rises, it will squeeze the energy storage component 21 and block the energy storage component 21 through the locking component 22. At this time, the energy storage component 21 cannot move temporarily, thereby accumulating elastic potential energy.

[0025] Limiting mechanism 3 includes: The extrusion assembly 31 is fixedly disposed on the inner wall of the high-pressure cylinder 15; The sealing component 32 is fixedly installed on the bottom inner wall of the sealing cover 16; When the blocking component 11 rises, it will push the squeezing component 31 to rise, and the sealing component 32 will restrict the descent of the squeezing component 31.

[0026] Example 2, please refer to Figures 4-13 The present invention is a multi-functional maintenance platform for ship depth sensors. Based on Example 1, the arresting component 11 includes a hollow piston ring 111 that is slidably connected to the bottom of the inner wall of the high-pressure cylinder 15. A sealing ring 1 is fixedly connected to the outer wall of the hollow piston ring 111, and two semi-circular piston rings 112 are slidably connected to the inner wall of the hollow piston ring 111. The two semicircular piston rings 112 are arranged in a mirror symmetrical manner. A sealing strip is fixedly connected to the side of the two semicircular piston rings 112 away from the inner wall of the high pressure cylinder 15. An arc-shaped sealing strip is fixedly connected to the top and bottom of the two semicircular piston rings 112. When using the water depth sensor 17, it is necessary to install it on the inner wall of the sealing cover 16 using bolt two. Figure 3 As shown in position I, after installation, the sealing cap 16 is then installed on top of the high-pressure cylinder 15 using bolts. Figure 3 As shown in the diagram at position J, the data cable at the top of the depth sensor 17 is then connected to the connector in the test bench 13, as follows. Figure 1 As shown in the position of G, the bottom of the high-pressure cylinder 15 is then connected to an external high-pressure water pump. The external high-pressure water pump is then started to deliver pure water into the inner cavity of the high-pressure cylinder 15 from the bottom. The purified water is blocked by the hollow piston ring 111 and the semi-circular piston ring 112. As the purified water is continuously injected, it pushes the hollow piston ring 111 and the semi-circular piston ring 112 upward, which compresses the gas inside the high-pressure cylinder 15 and discharges it through the exhaust valve. Figure 3 The position of H in the middle is shown.

[0027] The sliding assembly 12 includes a connecting bracket 121 fixedly connected to the top of the semi-circular piston ring 112, and the two connecting brackets 121 are arranged in a mirror symmetrical manner; The inner walls of the two connecting frames 121 are slidably connected to limit rods 122, and the tops of the two limit rods 122 are fixedly connected to inclined rods 123. When the semi-circular piston ring 112 rises, it will drive the connecting bracket 121 to rise.

[0028] The energy storage assembly 21 includes a sliding ring 211 that is slidably connected to the inner wall of the high-pressure cylinder 15. Two sliding rods 212 are fixedly connected to the top of the hollow piston ring 111. The two sliding rods 212 are arranged in a mirror symmetrical manner. Two compression springs 213 are sleeved on the outer wall of each of the two sliding rods 212. The outer walls of both sliding rods 212 are slidably connected to the inner wall of the sliding ring 211. The inner wall of the sliding ring 211 is rotatably connected to two connecting rods 214. The inner walls of the two connecting rods 214 are rotatably connected to the top of the two inclined rods 123. The hollow piston ring 111 will drive the sliding rod 212 to rise, and the sliding rod 212 will push the compression spring 213 located at the bottom to rise, so that the compression spring 213 contacts the bottom of the sliding ring 211.

[0029] The engaging assembly 22 includes two Z-shaped rods 224 fixedly connected to the top of the hollow piston ring 111, and two fixing sleeves 221 fixedly connected to the inner wall of the high-pressure cylinder 15; The inner walls of the two fixed sleeves 221 are slidably connected to the outer walls of the two inclined rods 123. The top inner walls of the two fixed sleeves 221 are slidably connected to a spring-loaded locking rod 222, and the bottom inner walls of the two fixed sleeves 221 are slidably connected to a spring-loaded locking rod 223. The outer walls of the two spring-loaded locking rods 222 are slidably connected to the inner walls of the two inclined rods 123, and the outer walls of the two spring-loaded locking rods 223 are slidably connected to the inner walls of the two inclined rods 123. The spring-loaded locking rods 223 are normally in a compressed state. As the spring locking rod 222 is inserted into the limiting hole of the inclined rod 123, it restricts the left and right sliding of the inclined rod 123. The inclined rod 123 is hinged to the sliding ring 211 through the connecting rod 214. Therefore, the sliding ring 211 cannot rise temporarily, which will block the compression spring 213 at the bottom. As the sliding rod 212 continues to move, the compression spring 213 at the bottom will be continuously compressed, accumulating elastic potential energy. As the hollow piston ring 111 rises, it also drives the Z-shaped rod 224 to rise. After rising, the Z-shaped rod 224 separates from the spring-loaded locking rod 223. Since the spring-loaded locking rod 223 is in a compressed state, its accumulated rebound force is released, causing it to return to its original position and protrude inside the fixed sleeve 221. As the Z-shaped rod 224 continues to rise, it will contact the spring-loaded locking rod 222. The Z-shaped rod 224 will then push the spring-loaded locking rod 222 to rise, allowing it to accumulate rebound force until the spring-loaded locking rod 222... When the inclined rod 123 is disengaged from the limiting hole, the obstruction to the inclined rod 123 disappears, and the elastic potential energy stored in the compression spring 213 at the bottom is released, pushing the sliding ring 211 to rise. The sliding ring 211 pulls the inclined rod 123 towards the inner wall of the high-pressure cylinder 15 through the connecting rod 214. When the inclined rod 123 moves, it will drive the limiting rod 122, the connecting frame 121 and the semi-circular piston ring 112 to move synchronously, so that the two semi-circular piston rings 112 separate, remove the obstruction to the pure water, and form a flow channel. Pure water flows upward from the flow channel. As the pure water slowly fills the inner cavity of the high-pressure cylinder 15, it pushes the gas in the high-pressure cylinder 15 to be slowly discharged through the exhaust valve until the high-pressure cylinder 15 is filled with pure water. Then the exhaust valve is closed, and the pure water in the high-pressure cylinder 15 is pressurized by an external high-pressure water pump to simulate the pressure environment of different water depths. After the pressure is maintained for a set time, the performance of the water depth sensor 17 is tested and the accuracy is calibrated. By using the hollow piston ring 111 and the semi-circular piston ring 112 together, the space at the bottom of the inner wall of the high-pressure cylinder 15 is occupied in the initial stage of water injection, making it difficult for pure water to directly contact the gas inside the high-pressure cylinder 15. This effectively prevents the problem of water easily mixing with gas and forming bubbles due to the initial high flow rate of water. In the subsequent water injection process, the pure water at the bottom of the hollow piston ring 111 can buffer the impact of the subsequent water injection flow, reduce the water injection flow rate, and allow the gas inside the high-pressure cylinder 15 to be slowly compressed and fully discharged through the exhaust valve. This significantly reduces the generation of microbubbles and solves the problem of a large number of microbubbles being generated in the high-pressure cylinder 15 during water injection, and the bubbles slowly dissolving in the pure water during the pressure holding stage, leading to a decrease in test pressure and detection accuracy. It can maintain a uniform and stable pressure, realistically simulate the deep water environment, and ensure the accuracy of the detection results of the water depth sensor 17.

[0030] The extrusion assembly 31 includes a fixing ring 311 fixedly connected to the inner wall of the high-pressure cylinder 15, and a liquid storage cylinder 312 fixedly connected to the bottom of the fixing ring 311. A spring piston bracket 313 is fixedly connected to the top of the hollow piston ring 111, and the inner wall of the liquid storage cylinder 312 is slidably connected to the outer wall of the spring piston bracket 313. Pure water is placed inside the liquid storage cylinder 312. A sealing ring 2 is fixedly connected to the top outer wall of the spring piston frame 313, and a sealing ring 1 is fixedly connected to the inner wall of each of the two liquid storage cylinders 312. The inner wall of the sealing ring 1 is slidably connected to the outer wall of the spring piston frame 313, and the spring piston frame 313 is in a compressed state. When the hollow piston ring 111 rises, it will drive the spring piston frame 313 to rise, causing the spring piston frame 313 to accumulate rebound force. The rise of the spring piston frame 313 will squeeze the pure water in the liquid storage cylinder 312.

[0031] The sealing assembly 32 includes two connecting pipes 322 that are connected through the inner wall of the fixed ring 311. A baffle plate 321 is fixedly connected to the bottom of the inner wall of the sealing cover 16. An inclined spring rod 323 is slidably connected to the inner wall of each of the two connecting pipes 322. The inner walls of the two connecting pipes 322 are fixedly connected with sealing rings 2, and the inner walls of the two sealing rings 2 are slidably connected to the outer walls of the two inclined spring rods 323. Among them, the purified water will compress the inclined spring rod 323 on the right side, causing it to move, such as... Figure 10 As shown, the inclined spring rod 323 on the right side will separate from the inclined surface of the right connecting pipe 322, removing the obstruction to the right connecting pipe 322. The purified water will then flow through the right connecting pipe 322 to the bottom of the spring piston holder 313. Figure 11 The position of K in the middle is shown; When the two semicircular piston rings 112 move away from each other, the pure water will flow upward, weakening the thrust on the hollow piston ring 111 and the semicircular piston ring 112. At this time, the rebound force of the spring piston holder 313 will be released, causing it to return to its original position. When the spring piston holder 313 descends, it will squeeze the pure water at its bottom again, allowing it to flow through the left spring locking rod 222. However, the left inclined spring rod 323 is blocked by the baffle plate 321, so it cannot move and will block the flow of pure water, thereby preventing the spring piston holder 313 from descending and keeping the hollow piston ring 111 stationary. This effectively prevents the pure water from weakening its thrust on the hollow piston ring 111. The release of the rebound force of the spring piston holder 313 will push the hollow piston ring 111 down, squeezing the pure water at its bottom. This can easily cause the water flow velocity between the two semicircular piston rings 112 to increase sharply, generating eddies that mix with the gas again to form bubbles.

[0032] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0033] A specific application of this embodiment is as follows: When using this invention, if it is necessary to detect the water depth sensor 17, the water depth sensor 17 is installed on the inner wall of the sealing cover 16 using bolt two, such as... Figure 3 As shown in position I, after installation, the sealing cap 16 is then installed on top of the high-pressure cylinder 15 using bolts. Figure 3 As shown in the diagram at position J, the data cable at the top of the depth sensor 17 is then connected to the connector in the test bench 13, as follows. Figure 1 As shown in the position of G, the bottom of the high-pressure cylinder 15 is then connected to an external high-pressure water pump. The external high-pressure water pump is then started to deliver pure water into the inner cavity of the high-pressure cylinder 15 from the bottom. The purified water is blocked by the hollow piston ring 111 and the semi-circular piston ring 112. As the purified water is continuously injected, it pushes the hollow piston ring 111 and the semi-circular piston ring 112 upward, which compresses the gas inside the high-pressure cylinder 15 and discharges it through the exhaust valve. Figure 3 As shown in position H, the semi-circular piston ring 112 will drive the connecting frame 121 to rise, and the hollow piston ring 111 will drive the sliding rod 212 to rise. The sliding rod 212 will push the compression spring 213 at the bottom to rise, so that the compression spring 213 contacts the bottom of the sliding ring 211. Since the spring locking rod 222 is inserted into the limiting hole of the inclined rod 123, it will restrict the left and right sliding of the inclined rod 123. And the inclined rod 123 is hinged to the sliding ring 211 through the connecting rod 214. Therefore, the sliding ring 211 cannot rise temporarily, which will block the compression spring 213 at the bottom. As the sliding rod 212 continues to move, the compression spring 213 at the bottom will be continuously compressed, accumulating elastic potential energy. As the hollow piston ring 111 rises, it also drives the Z-shaped rod 224 to rise. After rising, the Z-shaped rod 224 separates from the spring-loaded locking rod 223. Since the spring-loaded locking rod 223 is in a compressed state, its accumulated rebound force is released, causing it to return to its original position and protrude inside the fixed sleeve 221. As the Z-shaped rod 224 continues to rise, it will contact the spring-loaded locking rod 222. The Z-shaped rod 224 will then push the spring-loaded locking rod 222 to rise, allowing it to accumulate rebound force until the spring-loaded locking rod 222... When the inclined rod 123 is disengaged from the limiting hole, the obstruction to the inclined rod 123 disappears, and the elastic potential energy stored in the compression spring 213 at the bottom is released, pushing the sliding ring 211 to rise. The sliding ring 211 pulls the inclined rod 123 towards the inner wall of the high-pressure cylinder 15 through the connecting rod 214. When the inclined rod 123 moves, it will drive the limiting rod 122, the connecting frame 121 and the semi-circular piston ring 112 to move synchronously, so that the two semi-circular piston rings 112 separate, remove the obstruction to the pure water, and form a flow channel. Pure water flows upward from the flow channel. As the pure water slowly fills the inner cavity of the high-pressure cylinder 15, it pushes the gas in the high-pressure cylinder 15 to be slowly discharged through the exhaust valve until the high-pressure cylinder 15 is filled with pure water. Then the exhaust valve is closed, and the pure water in the high-pressure cylinder 15 is pressurized by an external high-pressure water pump to simulate the pressure environment of different water depths. After the pressure is maintained for a set time, the performance of the water depth sensor 17 is tested and the accuracy is calibrated. By using the hollow piston ring 111 and the semi-circular piston ring 112 together, the space at the bottom of the inner wall of the high-pressure cylinder 15 is occupied in the initial stage of water injection, making it difficult for pure water to directly contact the gas in the inner cavity of the high-pressure cylinder 15. This effectively prevents the problem of water easily mixing with gas and forming bubbles due to the high initial flow rate of water. In the subsequent water injection process, the pure water at the bottom of the hollow piston ring 111 can buffer the impact of the subsequent water injection flow, reduce the water injection flow rate, and allow the gas in the high-pressure cylinder 15 to be slowly compressed and fully discharged through the exhaust valve. This greatly reduces the generation of micro bubbles and solves the problem of a large number of micro bubbles being generated in the high-pressure cylinder 15 during water injection and the bubbles slowly dissolving in the pure water during the pressure holding stage, which leads to the attenuation of test pressure and the reduction of detection accuracy. It can maintain a uniform and stable pressure, truly simulate the deep water environment, and ensure the accuracy of the detection results of the water depth sensor 17. Secondly, when the hollow piston ring 111 rises, it will drive the spring piston holder 313 to rise, causing the spring piston holder 313 to accumulate rebound force. The rise of the spring piston holder 313 will squeeze the pure water in the liquid storage cylinder 312, and the pure water will squeeze the inclined spring rod 323 on the right side to move. Figure 10 As shown, the inclined spring rod 323 on the right side will separate from the inclined surface of the right connecting pipe 322, removing the obstruction to the right connecting pipe 322. The purified water will then flow through the right connecting pipe 322 to the bottom of the spring piston holder 313. Figure 11 The position of K in the middle is shown; When the two semicircular piston rings 112 move away from each other, the pure water will flow upward, weakening the thrust on the hollow piston ring 111 and the semicircular piston ring 112. At this time, the rebound force of the spring piston frame 313 will be released, allowing it to return to its original position. When the spring piston frame 313 descends, it will squeeze the pure water at its bottom again, allowing it to flow through the left spring locking rod 222. However, the left inclined spring rod 323 is blocked by the baffle plate 321, so it cannot move and will block the flow of pure water, thereby preventing the spring piston frame 313 from descending and keeping the hollow piston ring 111 stationary. This effectively prevents the pure water from weakening its thrust on the hollow piston ring 111. The release of the rebound force of the spring piston frame 313 will push the hollow piston ring 111 down, squeezing the pure water at its bottom. This can easily cause the water flow velocity between the two semicircular piston rings 112 to increase sharply, generating eddies that mix with the gas again to form bubbles. Secondly, as the inclined rod 123 moves toward the inner wall of the high-pressure cylinder 15, as the inclined rod 123 continues to move, the inclined surface of the inclined rod 123 will press against the arc surface of the spring engaging rod 223, causing the spring engaging rod 223 to descend. This causes the spring engaging rod 223 to be compressed and accumulate rebound force. Since the rebound force of the compression spring 213 is released quickly, it will drive the sliding ring 211 to move quickly. When the sliding ring 211 moves quickly and collides with the fixed ring 311, it will be subjected to a reaction force, resulting in a rebound descent. The connecting rod 214 drives the inclined rod 123 to move away from the inner wall of the high-pressure cylinder 15. During the movement of the inclined rod 123, when the spring locking rod 223 is aligned with the limiting hole of the inclined rod 123, the rebound force of the spring locking rod 223 will be released instantly and inserted into the limiting hole of the inclined rod 123, restricting the movement of the inclined rod 123. Since the inclined rod 123 is locked, the connecting bracket 121 and the two semi-circular piston rings 112 connected to it are also fixed in a separated state, ensuring that the water flow channel remains open. This effectively prevents the high-pressure pure water from pushing the semi-circular piston rings 112 towards the inner wall of the high-pressure cylinder 15 when high pressure is applied to the pure water in the high-pressure cylinder 15, which would cause the space inside the high-pressure cylinder 15 to increase. Secondly, when the spring force of the compression spring 213 is released and pushes the sliding ring 211 to rise, the connecting rod 214 will simultaneously drive the inclined rod 123, the connecting frame 121 and the semi-circular piston ring 112 to move. The initial spring force of the compression spring 213 is relatively large, but when the two semi-circular piston rings 112 are not separated, the pressure of the pure water on the bottom of the semi-circular piston ring 112 is also relatively large, which will increase the resistance to its movement, thereby slowing down the initial spring force of the compression spring 213. When the spring force of the compression spring 213 is fully released, it drives the sliding ring 211 to move quickly and contact the fixed ring 311. Due to the fast movement speed, the sliding ring 211 will rebound, which will drive the two semi-circular piston rings 112 to move closer to each other again. At this time, the flow cross section of the pure water flowing between the two semicircular piston rings 112 will gradually decrease, which will generate greater flow resistance. This will increase the return resistance of the semicircular piston ring 112, slow down the return speed of the semicircular piston ring 112 and the inclined rod 123, and provide sufficient action time for the spring locking rod 223 to engage with the limiting hole of the inclined rod 123. This effectively prevents the sliding ring 211 from rebounding rapidly after the elastic potential energy of the compression spring 213 is released, which would affect the accurate insertion of the spring locking rod 223 into the inclined rod 123. In addition, when the two semicircular piston rings 112 just separate, the rebound force of the compression spring 213 will be released quickly, causing the semicircular piston rings 112 to move quickly, allowing the two semicircular piston rings 112 to separate quickly, rapidly expanding the pure water flow channel, so that the pure water can flow upward at a uniform and slow speed. When the depth sensor 17 needs to be removed after testing, a high-pressure water pump is used to extract the purified water from the high-pressure cylinder 15. After extraction, the sealing cover 16 is removed by unscrewing bolt one. The sealing cover 16 will cause the blocking plate 321 to rise, thus removing the obstruction of the inclined spring rod 323 on the left side. Figure 11 As shown, at this time, the rebound force accumulated by the spring piston frame 313 will be released, squeezing the pure water into the connecting pipe 322 on the left, pushing the inclined spring rod 323 to move, allowing the pure water to circulate, and causing the spring piston frame 313 to descend smoothly, driving the hollow piston ring 111 and the semi-circular piston ring 112 to descend. The hollow piston ring 111 will drive the sliding rod 212 to descend, and the sliding rod 212 will drive the compression spring 213 located at the top to contact the top of the sliding ring 211. The compression spring 213 at the top is compressed, accumulating elastic potential energy. Since the spring piston frame 313 is initially in a compressed state, it will generate a stronger rebound force, thus applying sufficient compression force to compress the compression spring 213. As the hollow piston ring 111 drives the Z-shaped rod 224 to continue to descend, the Z-shaped rod 224 will contact the spring engaging rod 223, thereby pushing the spring engaging rod 223 to descend and put it in a compressed state, allowing the spring engaging rod 223 to separate from the inclined rod 123. At this time, the rebound force of the compression spring 213 at the top will be released quickly, pushing the sliding ring 211 to descend. Through the connecting rod 214, the inclined rod 123, the connecting frame 121 and the semi-circular piston ring 112 will be pushed to move away from the inner wall of the high-pressure cylinder 15, so that the two semi-circular piston rings 112 fit together. Through the sealing strip on the contact surface of the two semi-circular piston rings 112, the impact force of the rapid descent of the sliding ring 211 will be buffered. When the Z-shaped rod 224 descends, it will separate from the spring-loaded locking rod 222. At this time, the spring-loaded locking rod 222 will release its accumulated rebound force, causing it to contact the top of the inclined rod 123. When the inclined rod 123 returns to its original position, the limiting hole of the inclined rod 123 will align with the spring-loaded locking rod 222 again, and the rebound force of the spring-loaded locking rod 222 will be released again, causing it to insert into the limiting hole, restricting the movement of the inclined rod 123 and achieving automatic reset. After the sealing cover 16 is removed, the water depth sensor 17 can be removed by disassembling the second bolt.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional maintenance platform for a ship's depth sensor, comprising a test platform (13) and an installation platform (14), wherein a high-pressure cylinder (15) is fixedly connected to the top of the installation platform (14), a sealing cover (16) is fixedly connected to the top outer wall of the high-pressure cylinder (15) by bolt one, and a depth sensor (17) is fixedly connected to the inner wall of the sealing cover (16) by bolt two, characterized in that, Also includes: A blocking mechanism (1) is slidably disposed on the inner wall of the high-pressure cylinder (15); An opening and closing mechanism (2) is slidably disposed on the inner wall of the high-pressure cylinder (15); Limiting mechanism (3), the limiting mechanism (3) is fixedly installed on the inner wall of the high pressure cylinder (15); The sealing cover (16) is fixed or separated from the high-pressure cylinder (15) by installing or removing bolt one, and the water depth sensor (17) is fixed or separated from the sealing cover (16) by installing or removing bolt two. When the water depth sensor (17) needs to be tested, the test liquid is injected into the high-pressure cylinder (15) by an external high-pressure water pump.

2. The multi-functional maintenance platform for ship depth sensors according to claim 1, characterized in that: The blocking mechanism (1) includes: The blocking assembly (11) is slidably disposed on the inner wall of the high-pressure cylinder (15); A sliding component (12) is fixedly disposed on the top of the blocking component (11); When the liquid enters the high-pressure cylinder (15), it will push the blocking component (11) and the sliding component (12) to rise.

3. The multi-functional maintenance platform for ship depth sensors according to claim 2, characterized in that: The opening and closing mechanism (2) includes: Energy storage component (21), which is slidably disposed on the inner wall of high pressure cylinder (15); Engaging assembly (22), which is fixedly disposed on the inner wall of the high-pressure cylinder (15); When the blocking component (11) rises, it will squeeze the energy storage component (21) and block the energy storage component (21) through the locking component (22). At this time, the energy storage component (21) cannot move temporarily, thus accumulating elastic potential energy.

4. The multi-functional maintenance platform for ship depth sensors according to claim 3, characterized in that: The limiting mechanism (3) includes: The extrusion assembly (31) is fixedly disposed on the inner wall of the high-pressure cylinder (15); A sealing assembly (32) is fixedly disposed on the bottom inner wall of the sealing cover (16); When the blocking component (11) rises, it will push the squeezing component (31) to rise, and the sealing component (32) will restrict the squeezing component (31) from falling.

5. A multi-functional maintenance platform for ship depth sensors according to claim 4, characterized in that: The blocking assembly (11) includes a hollow piston ring (111) that is slidably connected to the bottom of the inner wall of the high-pressure cylinder (15). A sealing ring is fixedly connected to the outer wall of the hollow piston ring (111), and two semi-circular piston rings (112) are slidably connected to the inner wall of the hollow piston ring (111). The two semicircular piston rings (112) are arranged in a mirror symmetry. A sealing strip is fixedly connected to the side of the two semicircular piston rings (112) away from the inner wall of the high pressure cylinder (15). An arc-shaped sealing strip is fixedly connected to the top and bottom of the two semicircular piston rings (112). When in use, the bottom of the high-pressure cylinder (15) is connected to an external high-pressure water pump. The external high-pressure water pump pumps pure water into the high-pressure cylinder (15), and the pure water pushes the hollow piston ring (111) and the semi-circular piston ring (112) to rise.

6. A multi-functional maintenance platform for ship depth sensors according to claim 5, characterized in that: The sliding assembly (12) includes a connecting bracket (121) fixedly connected to the top of the semi-circular piston ring (112), and the two connecting brackets (121) are arranged in a mirror symmetrical manner; The inner walls of the two connecting frames (121) are slidably connected to limit rods (122), and the tops of the two limit rods (122) are fixedly connected to inclined rods (123). When the semi-circular piston ring (112) rises, it will drive the connecting frame (121) to rise.

7. A multi-functional maintenance platform for ship depth sensors according to claim 6, characterized in that: The energy storage assembly (21) includes a sliding ring (211) that is slidably connected to the inner wall of the high-pressure cylinder (15). The top of the hollow piston ring (111) is fixedly connected to two sliding rods (212). The two sliding rods (212) are arranged in a mirror symmetry. The outer walls of the two sliding rods (212) are each fitted with two compression springs (213). The outer walls of both sliding rods (212) are slidably connected to the inner wall of the sliding ring (211), and the inner wall of the sliding ring (211) is rotatably connected to two connecting rods (214), and the inner walls of the two connecting rods (214) are rotatably connected to the top of the two inclined rods (123). When the hollow piston ring (111) rises, it will drive the sliding rod (212) to rise, so that the compression spring (213) at the bottom will contact the sliding ring (211). The compression spring (213) at the bottom will be compressed and accumulate elastic potential energy.

8. A multi-functional maintenance platform for ship depth sensors according to claim 6, characterized in that: The engaging assembly (22) includes two Z-shaped rods (224) fixedly connected to the top of the hollow piston ring (111), and two fixing sleeves (221) fixedly connected to the inner wall of the high-pressure cylinder (15). The inner walls of the two fixed sleeves (221) are slidably connected to the outer walls of the two inclined rods (123). The top inner walls of the two fixed sleeves (221) are slidably connected to a spring-loaded locking rod (222), and the bottom inner walls of the two fixed sleeves (221) are slidably connected to a spring-loaded locking rod (223). The outer walls of the two spring-loaded locking rods (222) are slidably connected to the inner walls of the two inclined rods (123), and the outer walls of the two spring-loaded locking rods (223) are slidably connected to the inner walls of the two inclined rods (123). The spring-loaded locking rods (223) are normally in a compressed state. When the hollow piston ring (111) rises, it will drive the Z-shaped rod (224) to rise. As the Z-shaped rod (224) continues to move, it will push the spring locking rod (222) to rise, causing it to separate from the inclined rod (123).

9. A multi-functional maintenance platform for ship depth sensors according to claim 5, characterized in that: The extrusion assembly (31) includes a fixing ring (311) fixedly connected to the inner wall of the high-pressure cylinder (15), and a liquid storage cylinder (312) is fixedly connected to the bottom of the fixing ring (311). The top of the hollow piston ring (111) is fixedly connected to a spring piston bracket (313), the inner wall of the liquid storage cylinder (312) is slidably connected to the outer wall of the spring piston bracket (313), and the inside of the liquid storage cylinder (312) is filled with pure water. A sealing ring 2 is fixedly connected to the top outer wall of the spring piston frame (313), and a sealing ring 1 is fixedly connected to the inner wall of each of the two liquid storage cylinders (312). The inner wall of the sealing ring 1 is slidably connected to the outer wall of the spring piston frame (313), and the spring piston frame (313) is in a compressed state. When the hollow piston ring (111) rises, it pushes the spring piston frame (313) to rise, causing the spring piston frame (313) to be compressed and accumulate elastic potential energy.

10. A multi-functional maintenance platform for ship depth sensors according to claim 9, characterized in that: The sealing assembly (32) includes two connecting pipes (322) that are connected through the inner wall of the fixed ring (311). A baffle plate (321) is fixedly connected to the bottom of the inner wall of the sealing cover (16). An inclined spring rod (323) is slidably connected to the inner wall of each of the two connecting pipes (322). The inner walls of the two connecting pipes (322) are fixedly connected with sealing rings 2, and the inner walls of the two sealing rings 2 are slidably connected to the outer walls of the two inclined spring rods (323). When the spring piston frame (313) rises, it squeezes the pure water in the storage cylinder (312) into the connecting pipe (322), pushing the inclined spring rod (323) to move, so that the pure water flows through the connecting pipe (322) in the storage cylinder (312).

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