JPS6349734Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting structure for a transducer for acoustic detection, and more specifically relates to a mounting structure for a transducer for a fish finder, an acoustic depth sounder, and the like.

Conventionally, the transducer/receiver of fish finders and acoustic depth sounders was installed exclusively on the inner surface of the bottom plate of the hull, and the direction of transmission and reception of ultrasonic waves for detecting schools of fish or the bottom of the water was usually directed directly below the hull. It was hot.

Therefore, it is impossible to detect schools of fish or underwater obstacles in front of the ship in the direction of travel using conventional acoustic detectors. There was a problem that was said to be difficult.

In order to solve this problem, a transceiver element that transmits and receives ultrasonic waves toward the front of the ship's bow and stern line is installed at the bottom of the ship in a watertight manner, separate from the pre-installed transceiver element for fish detection. It has been proposed and is being implemented to install a protruding section, but the installation of the protruding section does not interfere with the already installed transducer toward the bottom, and it does not interfere with the transmitting/receiving circuit of the transducer. There was a problem that it was necessary to select a nearby location, and that selection was not easy.

In view of the above, this invention was devised for the purpose of providing an acoustic detection transducer mounting structure in which the ultrasonic transceiver elements necessary for horizontal and vertical underwater detection can be easily attached. A guide rail is attached along the bow and stern line direction on the outer surface of the bottom of the ship, and a rear watertight case whose rear half has a streamlined external shape is fixed to the rear end of the guide rail, and the rear watertight case is fixed to the rear end of the guide rail. One of the connecting pieces of the underwater connector is provided on the front end surface of the guide rail, and the guide rail has a dovetail groove on the upper bottom surface that can be slidably fitted into the guide rail, and the front end has a streamlined shape. The rear end surface of the rear watertight case is a surface that matches the front end surface of the rear watertight case without a gap, and the front watertight case with the other connector piece attached to the position corresponding to the connector piece is slidably fitted to the guide rail. The device is characterized in that an element for transmitting and receiving ultrasonic waves vertically downward and horizontally forward is molded inside the front watertight case.

This invention will be explained below with reference to examples.

FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is a perspective view showing the embodiment in an exploded state.

In the acoustic detection transducer mounting structure of this invention, a guide rail 2 is attached along the bow and stern line direction (arrow X) on the outer surface 1' of the ship's bottom 1, and the rear end 2A of this guide rail 2 has the following features: A rear watertight case 3 having a streamlined outer surface shape of the rear half 3A is integrally fixed, and the front end surface 3F of this rear watertight case 3 has one side of an underwater connector connected to equipment such as an amplifier and a display device. A connecting piece 4A is provided on the guide rail 2. On the other hand, the guide rail 2 has a streamlined front half 5F and a rear end surface 5A that matches the front end surface 3F of the rear watertight case 3 without a gap. A front watertight case 5 with the other connector piece 4F attached at a position corresponding to the connector piece 4A is attached so as to be able to be slid and fixed, and inside this front watertight case 5 there is a connector piece 4F connected to the connector piece 4F. Vertical downward direction (arrow Y direction) and horizontal forward direction (arrow F direction)
Elements 6.6 for transmitting and receiving ultrasonic waves in directions) are each integrally molded.

As shown in FIGS. 2 and 3, the fitting state of the guide rail 2 and the front watertight case 5 is as shown in FIGS. As shown in FIG. 3, a concave groove 5C is formed in the upper bottom surface 5' of the front watertight case 5 to fit with the rails 2, 2, and the front watertight case 5 is configured to fit and slide. It is configured to be fixed by tightening bolts 7, 7 attached to both sides of the.

The front watertight case 5 is desirably formed as a single unit from a synthetic resin such as urethane rubber that is resistant to corrosion by seawater and the like.

This idea is structured as above,
When installing the transmitter/receiver of an acoustic detector on the bottom of a ship, a watertight case is used that contains transducers in both horizontal and vertical directions. The work is greatly simplified compared to the previous method, and since the front case is removable, it can be easily replaced with a transducer used for other purposes, making it a versatile product. Furthermore, since the entire structure is streamlined, there are almost no blisters that can interfere with the transmission and reception of ultrasonic waves, and it has various practical effects such as being able to obtain accurate information.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of this invention, FIG. 2 is a perspective view of the embodiment, and FIG. 3 is a cross-sectional view taken along the - line in FIG. 2. 1...Bottom, 1'...Outer surface, 2...Guide rail, 2A...Rear end of guide rail, 3...Rear watertight case, 3A...Rear half of rear watertight case, 3F...
... Front end surface of rear watertight case, 4A, 4F ... Connector connection piece, 5 ... Front watertight case, 5A ... Rear end surface of front watertight case, 5F ... Front half of front watertight case, 6 ... Transmission/reception element.

Claims (1)

[Scope of utility model registration request] A guide rail is attached along the bow and stern direction on the outer surface of the bottom of the ship, and a rear watertight case whose rear half has a streamlined external shape is fixed to the rear end of the guide rail. is provided with one connection piece of the underwater connector;
The guide rail has a dovetail groove on the upper bottom surface that can be slid into the guide rail, the front half is streamlined, and the rear end surface is a surface that matches the front end surface of the rear watertight case without a gap, A front watertight case with the other connector piece attached at a position corresponding to the above connector piece is slidably fitted to the guide rail, and inside the front watertight case there is a vertically downward direction and a horizontally forward direction. A mounting structure for a transducer for acoustic detection, characterized in that an element for transmitting and receiving ultrasonic waves is molded.