Special device for in-dock detection of marine depth finder

Abstract

The utility model relates to a special device for in-dock detection of a marine depth finder, which is characterized by comprising a water storage barrel vertically sleeved on a transducer probe of the marine depth finder, a base bottom plate supported below the water storage barrel and a height adjusting jack supported below the base bottom plate, and the bottom surface of the height adjusting jack is abutted against the ground of a dock. The open end of the water storage cylinder is abutted against the bottom surface of a ship where the marine depth finder is installed in a sealed manner under the pushing of the height adjusting jack, and the water storage cylinder is provided with a water inlet pipe and an exhaust pipe, so that the water storage cylinder is filled with water and the transducer probe of the marine depth finder is immersed in the water. The special device for in-dock detection of the marine depth finder can simulate an underwater scene and detect the depth finder during a ship docking period, so that secondary docking of the ship can be avoided, the docking cost is saved, and the maintenance time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ship maintenance, especially to the ship depth finder dock detection special device. BACKGROUND

[0002] The existing ship depth finder uses ultrasonic pulse to detect the seabed and underwater objects, and the display unit includes all basic circuits and logic processors. The electric pulse is converted into acoustic energy in the transducer installed on the ship bottom, the ultrasonic transducer emits and receives ultrasonic waves, the processor measures the travel time of the pulse between the seabed and the transducer, calculates the distance from the seabed or underwater target to the surface of the transducer, adds the correction value of the ship draft depth, and obtains the seabed depth, and displays the water depth in images and texts.

[0003] The transducer is the core component of the ship depth finder, but during the ship entering the dock, the depth finder cannot be powered on after the ship is out of water, the main reasons are: 1. Impedance mismatch: when the transducer works underwater, its impedance characteristics match the sound wave propagation characteristics in water, however, when the ship enters the dock for maintenance, the transducer leaves the underwater and is exposed in the air, due to the great difference in acoustic impedance between air and water, this will cause the sound wave emitted by the transducer to rapidly attenuate in the air and cannot be effectively transmitted, at this time, if powered on, the transducer may generate excessive current or voltage due to impedance mismatch, thereby damaging its internal elements; 2. Overheating problem: the transducer generates certain heat when working, underwater, due to the good heat conductivity of water, these heat can be quickly absorbed and carried away by water, so as to keep the temperature of the transducer within the normal range, however, when the ship enters the dock for maintenance, the transducer is exposed in the air, due to the poor heat conductivity of air, the heat generated by the transducer cannot be dissipated in time, which may cause its internal temperature to be too high and be damaged.

[0004] In this way, it is impossible to power on the depth finder for detection in the dock, and the depth finder can only be detected after the ship is out of the dock, at this time, if the depth finder is found to be faulty, it must be re-entered into the dock for repair, thereby causing the increase of cost and the extension of repair time due to repeated entering and leaving the dock.

[0005] The present retrieval of Chinese patent "ultrasonic depth finder calibration detection device and its calibration detection method", announcement number CN106813678B, is composed of dry end and wet end two parts, the dry end includes host computer, display control software and electronic system, the electronic system includes analog receiver, analog transmitter and digital processing board; The wet end includes transducer and fixing frame, the transducer is installed on the fixing frame opposite the transducer of the depth finder to be measured, the distance between the two transducers is adjustable; The fixing frame is placed in the water tank, the water depth of the water tank is submerged in two transducers, although the patent can realize calibration and performance detection of depth finder at the time of factory delivery, replace the complex test of depth finder in river, lake and other areas, reduce the cost; But it cannot be used in the detection of depth finder already installed on the ship. SUMMARY

[0006] In view of the above deficiencies of the prior art, the utility model provides a detection device for ship depth finder in dock, which can simulate the underwater scene to detect the depth finder during the docking of the ship, avoid secondary docking, save the docking cost and shorten the repair time.

[0007] The detection device for ship depth finder in dock of the utility model is characterized by comprising a water storage cylinder vertically sleeved on a transducer probe of the ship depth finder, a base bottom plate supported below the water storage cylinder and a height adjusting jack supported below the base bottom plate, the bottom surface of the height adjusting jack abuts on the ground of the dock, the open end of the water storage cylinder is sealed and abuts on the ship bottom surface on which the ship depth finder is installed under the pushing of the height adjusting jack, a water inlet pipe and an exhaust pipe are arranged on the water storage cylinder to fill the water storage cylinder with water and immerse the transducer probe of the ship depth finder.

[0008] Preferably, a plurality of through holes are arranged on the base bottom plate outside the water storage cylinder, positioning support screws are arranged in the through holes, and nuts locking the positioning support screws are arranged above and below the base bottom plate on the positioning support screws, and the lower ends of the positioning support screws abut on the ground of the dock.

[0009] Preferably, a flange plate is arranged on the outer periphery of the open end of the water storage cylinder, and a rubber gasket for sealing is arranged on the flange plate.

[0010] Preferably, the water inlet pipe extends into the cylinder body from the lower part of the water storage cylinder, bends upward after passing through the cylinder wall and extends until slightly below the open end of the water storage cylinder.

[0011] Preferably, the exhaust pipe extends into the cylinder body from the upper part of the water storage cylinder, bends upward after passing through the cylinder wall and extends until slightly below the ship bottom surface.

[0012] Preferably, the water inlet pipe and the exhaust pipe are stainless steel pipes, which are fixed to the water storage cylinder by welding. The vertical end of the water inlet pipe inside the water storage cylinder is fixed to the water storage cylinder by welding with a support pipe.

[0013] The method for using the special dock testing device for marine depth sounders of this utility model.

[0014] Place the device directly below the transducer probe of the ship's bottom depth sounder. Place the height adjustment jack at the bottom of the water tank and manually press the jack to adjust the height of the water tank so that the upper end of the water tank touches the bottom of the ship. Connect the water inlet pipe to the water inlet pipe; any water source such as fire water, cooling water, or tap water can be used. Observe the outlet of the exhaust pipe. When water flows out of the outlet, it indicates that the water tank is full. Reduce the water inlet flow rate to keep the water tank full at all times. With the water tank full, the ship's depth sounder can be turned on to perform various functional tests. After the test is completed, disconnect the power to the depth sounder and then turn off the water inlet. The power must be disconnected before turning off the cooling water. After the test is completed, lower the height adjustment jack, remove the water tank, pour out the water from the water tank, and wipe it clean to keep the equipment dry.

[0015] This utility model relates to a special device for dock inspection of marine depth sounders. It can simulate an underwater scenario to inspect the depth sounder during the ship's docking, thereby avoiding the ship's secondary docking, saving docking costs, and shortening maintenance time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 yes Figure 1 AA cross-section view;

[0019] Figure 3 yes Figure 1 BB cross-section;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0021] The central control reset foot pedal and its combined connection method of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] This utility model of a special device for dock testing of a marine depth sounder includes a water storage tank 1 vertically mounted on the transducer probe A of the marine depth sounder, a base plate 2 supported below the water storage tank, and a height adjustment jack 3 supported below the base plate. The height adjustment jack 3 can adjust the height of the base plate 2 to adapt to the height requirements of different ships.

[0024] The water storage tank is made of circular stainless steel pipe with a welded flange plate 9 on the top, which contacts the bottom of the ship. Rubber gaskets 10 can be installed on the contact surface to ensure a seal. Filling the tank with water can simulate the state of a depth sounder underwater. The base plate 2 is made of circular stainless steel plate and is used to place the water storage tank.

[0025] The bottom of the height-adjusting jack rests on the ground 4 of the dock. The open end of the water tank is sealed by the push of the height-adjusting jack (by installing rubber gaskets 10) and rests on the bottom surface of the ship where the marine depth sounder is installed. The water tank is equipped with a water inlet pipe 5 and an exhaust pipe 6. After the water inlet pipe 5 is connected to a water source, the water tank can be filled with water and the transducer probe of the marine depth sounder can be submerged.

[0026] To ensure the stability and reliability of the water storage tank 1, the base plate 2 is provided with several (more than 3) through holes located on the outside of the water storage tank. Positioning support screws 7 are installed in the through holes. Nuts 8 are provided on the positioning support screws above and below the base plate to lock the positioning support screws. The lower end of the positioning support screw abuts against the ground of the dock. The upper end of the positioning support screw is fixedly connected to the base plate 2 by the nuts, thereby better supporting the base plate 2.

[0027] A flange plate 9 is provided on the outer periphery of the open end of the water storage tank. A sealing rubber gasket 10 (circular in shape, with the inner diameter of the rubber gasket 10 being approximately equal to the inner diameter of the water storage tank) is provided on the flange plate. The rubber gasket 10 can prevent water from overflowing from the part of the water storage tank that contacts the bottom surface of the ship where the marine depth sounder is installed.

[0028] The water inlet pipe 5 extends into the cylinder from the bottom and bends upward after passing through the cylinder wall until it is slightly lower than the opening end of the water storage cylinder; the vent pipe 6 extends into the cylinder from the top and bends upward after passing through the cylinder wall until it is slightly lower than the bottom surface of the ship or slightly lower than the upper end surface of the rubber gasket 10.

[0029] The aforementioned water inlet pipe and exhaust pipe can be stainless steel pipes, which are fixed to the water storage cylinder by welding. The vertical end of the water inlet pipe inside the water storage cylinder is fixed to the water storage cylinder by a support pipe 11.

[0030] The method of using this utility model of a special device for dock testing of a marine depth sounder is as follows: Place the device directly below the transducer probe of the depth sounder on the ship's bottom. Place the height adjustment jack at the bottom of the water tank and manually press the jack to adjust the height of the water tank so that the upper end of the water tank can touch the bottom of the ship. Adjust the positioning support screw 7 and nut 8 so that the lower end of the positioning support screw 7 is in contact with the dock floor. Connect the water inlet pipe to the water inlet pipe. Any water source such as fire water, cooling water, or tap water can be used. Observe the outlet of the exhaust pipe. When water flows out of the outlet, it indicates that the water tank is full. Reduce the water inlet flow rate to keep the water tank full at all times. With the water tank full, the marine depth sounder can be turned on to perform various functional tests. After the test is completed, disconnect the power supply to the depth sounder and then turn off the water inlet. The power supply must be disconnected before the cooling water can be turned off. After the test is completed, lower the height adjustment jack, remove the water tank, pour out the water from the water tank, and wipe it clean to keep the equipment dry.

[0031] This utility model relates to a special device for dock inspection of marine depth sounders. It can simulate an underwater scenario to inspect the depth sounder during the ship's docking, thereby avoiding the ship's secondary docking, saving docking costs, and shortening maintenance time.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are permitted.

Claims

1. A special device for dockside detection of a shipborne depth sounder, characterized in that: The system includes a water tank vertically mounted on the transducer probe of a marine depth sounder, a base plate supported below the water tank, and a height-adjusting jack supported below the base plate. The bottom surface of the height-adjusting jack rests on the ground of the dock. The open end of the water tank is sealed against the bottom surface of the ship where the marine depth sounder is installed under the pushing force of the height-adjusting jack. The water tank is equipped with an inlet pipe and an exhaust pipe to fill the water tank with water and submerge the transducer probe of the marine depth sounder.

2. The special device for dockside detection of marine depth sounders according to claim 1, characterized in that: The base plate has several perforations on the outside of the water storage cylinder. Positioning support screws are installed in the perforations. Nuts for locking the positioning support screws are located on the base plate above and below the positioning support screws. The lower end of the positioning support screws abuts against the ground of the dock.

3. The special device for dockside detection of marine depth sounders according to claim 1, characterized in that: A flange plate is provided on the outer periphery of the open end of the water storage cylinder, and a rubber gasket for sealing is provided on the flange plate.

4. The dry-dock detection device for marine depth sounders according to claim 1, characterized in that: The water inlet pipe extends into the water storage cylinder from the bottom. After passing through the cylinder wall, the water inlet pipe bends upward and extends until it is slightly lower than the opening end of the water storage cylinder.

5. The special device for dockside detection of marine depth sounders according to claim 1, characterized in that: The exhaust pipe extends from the top of the water storage tank into the tank body. After passing through the tank wall, the exhaust pipe bends upward and extends until it is slightly below the bottom of the ship.

6. The dry-dock detection device for marine depth sounders according to claim 1, characterized in that: The water inlet pipe and the exhaust pipe are stainless steel pipes, which are fixed to the water storage cylinder by welding. The vertical end of the water inlet pipe inside the water storage cylinder is fixed to the water storage cylinder by welding with a support pipe.

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