Auxiliary mechanism for underwater ultrasonic detection device

Abstract

The utility model provides an auxiliary mechanism for an underwater ultrasonic detection device. The auxiliary mechanism comprises a first electric cylinder, a second electric cylinder and a platform, an output cylinder barrel of the first electric cylinder is provided with a containing space; the second electric cylinder is mounted in a containing space of an output cylinder barrel of the first electric cylinder; the platform is located below the first electric cylinder. An output cylinder barrel of the first electric cylinder is connected with the upper side of the platform through a first hinge; the output end of the second electric cylinder is connected with the upper side of the platform through a second hinge; a preset distance is formed between the first hinge and the second hinge; a sonar device serving as an underwater ultrasonic detection device is mounted on the lower side of the platform; when the first electric cylinder extends out, the platform provided with the sonar device moves downwards; and when the second electric cylinder extends out, the platform provided with the sonar device rotates by taking the first hinge as a pivot.

Description

Technical Field

[0001] The invention belongs to the technical field of a ship-used detector pan-tilt platform, and in particular relates to an auxiliary mechanism of an underwater ultrasonic detection device. Background Art

[0002] Ultrasonic technology is a commonly used technical means for detecting objects at sea or in water. The storage and convenient use of ultrasonic detectors on board ships are essential technical means for contemporary marine operations, such as military and fish detection. Ultrasonic detector carriers and operating methods that are easy to use and more cost-effective are obviously the goals pursued in marine operations.

[0003] The existing auxiliary mechanism for placing the underwater ultrasonic detection device into water to realize ultrasonic scanning has a complex structure, and a rotary motor is often used to realize the pitch and tilt rotation of the ultrasonic detection device, and the rigidity is poor. Utility Model Content

[0004] In view of the above problems, the present application aims to propose an auxiliary mechanism for an underwater ultrasonic detection device, which has a simple structure and a higher cost-effectiveness.

[0005] The present application discloses an auxiliary mechanism for an underwater ultrasonic detection device, which comprises: a first electric cylinder, a second electric cylinder, and a platform;

[0006] The output cylinder barrel of the first electric cylinder has a receiving space; the second electric cylinder is installed in the receiving space of the output cylinder barrel of the first electric cylinder, preferably in an eccentric position;

[0007] The platform is located below the first electric cylinder; the output cylinder barrel of the first electric cylinder is connected to the upper side of the platform through a first hinge; the output end of the second electric cylinder is connected to the upper side of the platform through a second hinge; a predetermined distance is formed between the first hinge and the second hinge;

[0008] A sonar device, which is an underwater ultrasonic detection device, is mounted on the underside of the platform;

[0009] When the first electric cylinder is extended, the platform on which the sonar device is installed moves downward; when the second electric cylinder is extended, the platform on which the sonar device is installed rotates with the first hinge as a pivot.

[0010] Preferably, a cabin is installed at the lower part of the first electric cylinder; an opening is formed at the lower end of the cabin; a cabin door is installed on the opening at the lower end of the cabin through a third hinge; and the cabin door is used to close the opening at the lower end of the cabin.

[0011] Preferably, the hatch comprises two hatches; the two hatches are respectively arranged on both sides of the opening of the lower end of the cabin;

[0012] For each cabin door, it is connected to the output cylinder barrel of the first electric cylinder through a connecting rod; it is connected to the lower end of the connecting rod through a fourth hinge at the middle position on the inner side of the cabin door; the upper end of the connecting rod is installed on the lower end of the output cylinder barrel of the first electric cylinder through a fifth hinge, and when the cabin door is opened through the output cylinder barrel of the first electric cylinder, the sonar device installed on the lower side of the platform is extended to the bottom of the cabin door, thereby realizing the linkage between the cabin door and the platform.

[0013] Preferably, the device further comprises an outlet pipe, which is arranged to penetrate the cabin and is used to guide the cable of the sonar device to the outside;

[0014] The outlet pipe is fixed together with the output cylinder barrel of the first electric cylinder and moves synchronously with the output cylinder barrel of the first electric cylinder.

[0015] Preferably, a center hole is opened at the center of the first electric cylinder for guiding the cable of the sonar device to the outside.

[0016] The auxiliary mechanism for the underwater ultrasonic detection device of the present application is in the form of two electric cylinders with a large cylinder inside a small cylinder. The large electric cylinder realizes the telescopic movement of the sonar device and plays the role of opening and closing the cabin door at the same time; the small electric cylinder and the large electric cylinder are arranged at a certain distance, so that the small electric cylinder can be used to realize the pitch movement of the sonar device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a sonar platform of an auxiliary mechanism for an underwater ultrasonic detection device of the present application placed in a Cartesian coordinate system;

[0018] Figure 2 A schematic diagram of the connection relationship between two electric cylinders and the platform of the sonar platform of the auxiliary mechanism of the underwater ultrasonic detection device of the present application;

[0019] Figure 3 A schematic diagram of a closed state of a cabin of a sonar platform of an auxiliary mechanism for an underwater ultrasonic detection device of the present application;

[0020] Figure 4 A schematic diagram of a state in which a cabin of a sonar platform of an auxiliary mechanism for an underwater ultrasonic detection device of the present application is opened;

[0021] Figure 5 A schematic diagram of the state of the sonar platform of the auxiliary mechanism for the underwater ultrasonic detection device of the present application when the cabin is closed in the water;

[0022] Figure 6 This is a schematic diagram of the pitching movement of the sonar head of the auxiliary mechanism for the underwater ultrasonic detection device of the present application when the cabin of the sonar platform is open in the water. DETAILED DESCRIPTION

[0023] The sonar platform of the present application is described in detail below with reference to the accompanying drawings.

[0024] The implementation diagram of the auxiliary mechanism for the underwater ultrasonic detection device of the present application is as follows Figure 1-6 shown.

[0025] Figure 1 In the figure, the platform 1 of the auxiliary mechanism of the present application is placed in a Cartesian coordinate system, and a sonar device 2 as an underwater ultrasonic detection device is fixedly installed on its lower side. The sonar device 2 can move axially along the z-axis and can also rotate around the y-axis in the direction shown by B.

[0026] In order to realize the above-mentioned movement of the sonar device 2, the auxiliary mechanism of the present application is provided with two electric cylinders around the platform.

[0027] The relationship between the two electric cylinders and the platform 1 is as follows Figure 2 As shown. The electric cylinder 3 has a hollow annular space (it can also be a space of other shapes), and the output cylinder barrel 31 of the electric cylinder 3 is located in the hollow annular space; the lower end of the output cylinder barrel 31 is connected to the platform 1 through a hinge 5 that only allows rotation around the y-axis. The output cylinder barrel 31 of the electric cylinder 3 has an anti-rotation function (that is, there is no relative rotation between the electric cylinder 3 and the output cylinder barrel 31); the output cylinder barrel 31 has a hollow annular space; a small electric cylinder 4 is installed in the hollow annular space. The small electric cylinder 4 is connected to the platform 1 through a hinge 6. When the platform 1 is in the initial horizontal position (xy plane), the axis of the small electric cylinder 4 is parallel to the axis of the electric cylinder 3. The length of the hinge 5 from the hinge 6 is S. The line connecting the hinge 6 and the hinge 5 is parallel to the x-axis. By changing the length dimension h of the small electric cylinder 4, the pitch angle (that is, the rotation angle around the y-axis) of the sonar device 2 can be changed. This is the basic principle of using two electric cylinders to achieve the linear movement and rotation of the platform 1 on which the sonar device 2 is installed, that is, the electric cylinder 3 is used to achieve the linear movement, and the small electric cylinder 4 is used to achieve the pitch rotation.

[0028] like Figure 3 , 4 As shown, a cabin 8 is fixedly installed at the lower end of the hollow annular space of the electric cylinder 3; a door 71 is connected to the lower end opening of the cabin 8 through a hinge 74, and the door 71 is used to close the lower end opening of the cabin 8. The lower end of the output cylinder barrel 31 of the electric cylinder 3 extends into the cabin 8 and is installed with a platform 1, and a sonar device 2 is fixedly installed on the lower side of the platform 1.

[0029] The upper end of the connecting rod 7 is fixed to the end of the output cylinder 31 through a hinge 72 , and the lower end of the connecting rod 7 is installed in the middle of the cabin door 71 through a hinge 73 .

[0030] When the output cylinder 31 extends downward, the output cylinder 31 pushes the connecting rod 7 to move downward and rotate around the hinges 72 and 73 at the same time, so that the connecting rod 7 pushes the cabin door 71 to rotate around the hinge 74, thereby pushing the cabin door 71 open to open the cabin 8, and the output cylinder 31 extends to the outside of the cabin 8, and the sonar device 2 installed under the platform 1 at the lower end of the output cylinder 31 is exposed.

[0031] When the output cylinder 31 retracts upward, the output cylinder 31 pulls the connecting rod 7 to move upward and rotate around the hinges 72 and 73 at the same time, whereby the connecting rod 7 pulls the cabin door 71 to rotate around the hinge 74, thereby pulling the cabin door 71 back to close the cabin 8, and the output cylinder 31 retracts into the cabin 8, and the sonar device 2 installed under the platform 1 at the lower end of the output cylinder 31 is enclosed in the cabin 8 by the cabin door 71.

[0032] like Figure 5 , 6 As shown, in order to lead out the wires, an outlet pipe 9 is provided. The outlet pipe 9 is fixed together with the output cylinder 31. When the output cylinder 31 moves up and down, it moves synchronously. The wires pass through the outlet pipe 9. In order to prevent water from penetrating out of the cabin 8, sealing measures are taken at the relative movement points and the connection points. In particular, a center hole 10 is opened in the center of the electric cylinder 3, which is also used to pass the wires.

[0033] When the cabin 8 is closed, the sonar device 2 is contained in the cabin 8. Figure 5 The cabin 8 is opened and the sonar device 2 is extended as shown in FIG. Figure 6 shown.

[0034] The auxiliary mechanism of this application has the following beneficial effects:

[0035] 1. Simple mechanism; the rotary motion of the pitching motion is converted into the linear motion of a rod (small electric cylinder), eliminating the commonly used and more complex rotary motor drive mechanism;

[0036] 2. High rigidity; the triangular structure of the rod at any time makes the working device more stable and rigid;

[0037] 3. Linked synchronous movement; the opening and closing of the door is organically linked with the extension and retraction of the probe, which not only simplifies the mechanism but also makes the work more reliable.

Claims

1. An auxiliary mechanism for an underwater ultrasonic detection device, characterized in that include: A first electric cylinder, a second electric cylinder, and a platform; The output cylinder barrel of the first electric cylinder has a receiving space; The second electric cylinder is installed in the accommodation space of the output cylinder barrel of the first electric cylinder; The platform is located below the first electric cylinder; the output cylinder barrel of the first electric cylinder is connected to the upper side of the platform through a first hinge; the output end of the second electric cylinder is connected to the upper side of the platform through a second hinge; a predetermined distance is formed between the first hinge and the second hinge; A sonar device, which is an underwater ultrasonic detection device, is mounted on the underside of the platform; When the first electric cylinder is extended, the platform on which the sonar device is installed moves downward; when the second electric cylinder is extended, the platform on which the sonar device is installed rotates with the first hinge as a pivot.

2. The auxiliary mechanism for underwater ultrasonic detection device according to claim 1, characterized in that: A cabin is installed at the lower part of the first electric cylinder; an opening is formed at the lower end of the cabin; a cabin door is installed on the opening at the lower end of the cabin through a third hinge; and the cabin door is used to close the opening at the lower end of the cabin.

3. The auxiliary mechanism for underwater ultrasonic detection device according to claim 2, characterized in that: The said hatches include two; the two hatches are respectively arranged on both sides of the opening of the lower end of the cabin; For each cabin door, it is connected to the output cylinder barrel of the first electric cylinder through a connecting rod; it is connected to the lower end of the connecting rod through a fourth hinge at the middle position on the inner side of the cabin door; the upper end of the connecting rod is installed on the lower end of the output cylinder barrel of the first electric cylinder through a fifth hinge, and when the cabin door is opened through the output cylinder barrel of the first electric cylinder, the sonar device installed on the lower side of the platform is extended to the bottom of the cabin door, thereby realizing the linkage between the cabin door and the platform.

4. The auxiliary mechanism for underwater ultrasonic detection device according to claim 2, characterized in that: It further comprises an outlet pipe, which is arranged through the cabin and is used to guide the cable of the sonar device to the outside; The outlet pipe is fixed together with the output cylinder barrel of the first electric cylinder and moves synchronously with the output cylinder barrel of the first electric cylinder.

5. The auxiliary mechanism for underwater ultrasonic detection device according to claim 2, characterized in that: A center hole is opened at the center of the first electric cylinder for guiding the cable of the sonar device to the outside.

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