Accurate measuring and positioning device for ocean drilling

Abstract

The utility model relates to an accurate measuring and positioning device for ocean drilling, which comprises a shell, the shell is elliptical, two cabins are arranged in the shell, a partition plate is arranged between the two cabins, the two cabins are symmetrical about the axis of the shell, the partition plate is parallel to the axis, two rectangular grooves are arranged in the cabins, and the two rectangular grooves are communicated with the partition plate. A sonar assembly is arranged in the rectangular groove, one end of the rectangular groove is open, and the open end of the rectangular groove is connected with the partition plate, the accurate measuring and positioning device for ocean drilling can enable a sonar to be always kept in a vertically downward state to emit sound waves, measurement is completed, the accuracy is high, and even if the device is turned over by 180 degrees, the sonar assembly can not be turned over by 180 degrees. And automatic measurement switching can also be realized, and the practicability is relatively high.

Description

Technical Field

[0001] The utility model particularly relates to a precise measuring and positioning device for marine drilling. Background Art

[0002] In the prior art, ocean drilling generally uses large survey ships to use sonar to achieve measurement and positioning. However, due to the undulating sea surface, the direction of the sound waves emitted by the test sonar cannot be vertically downward, so the measured data has a large deviation, and the measurement cost of large survey ships is also relatively high. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, a precise measuring and positioning device for marine drilling is provided.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a precise measurement and positioning device for marine drilling, comprising a shell, the shell is elliptical, two cabins are arranged in the shell, a partition is arranged between the two cabins, the two cabins are symmetrical about the axis of the shell, the partition is parallel to the axis, two rectangular grooves are arranged in the cabin, a sonar assembly is arranged in the rectangular groove, one end of the rectangular groove is open, and the open end of the rectangular groove is connected to the partition;

[0005] The sonar assembly includes a sonar, a suspension rope, a lead block, a support rod and two pull ropes, one end of the suspension rope is connected to the partition, the other end of the suspension rope is connected to the lead block, one end of the support rod is connected to the sonar, the other end of the support rod is connected to an end of the lead block away from the suspension rope, the suspension rope, the lead block, the support rod and the sonar are connected in sequence, two pull ropes are respectively arranged on both sides of the sonar, one end of the pull rope is connected to the lead block, the other end of the pull rope is connected to the bottom of the rectangular groove, and the suspension rope is located at the opening of the rectangular groove;

[0006] A sleeve is vertically arranged in the partition, and pressure sensors are arranged at both ends of the sleeve. A ball is arranged in the sleeve, and the ball abuts against one of the pressure sensors. Two spring clips are arranged in the middle of the inner side of the sleeve, and the distances between the spring clips and the two pressure sensors are equal. The two spring clips are located between the two pressure sensors, and the two spring clips are symmetrical about the ball. The distance between the spring clip and the pressure sensor is greater than the radius of the ball, and the distance between the spring clip and the pressure sensor is less than the diameter of the ball.

[0007] Preferably, a PLC is also provided in the shell, and the pressure sensor and sonar are electrically connected to the PLC.

[0008] Preferably, the length of the pull rope is smaller than the width of the rectangular groove, and the length of the pull rope is smaller than the depth of the rectangular groove.

[0009] The beneficial effect of the utility model is that the precise measurement and positioning device for marine drilling can make the sonar always maintain a vertical downward state to emit sound waves and complete the measurement with high accuracy. Even if the device flips 180°, automatic measurement switching can be achieved, and it has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural schematic diagram of the precise measurement and positioning device for marine drilling of the utility model;

[0012] Figure 2 yes Figure 1 A magnified view of part A;

[0013] In the figure: 1. shell, 2. partition, 3. suspension rope, 4. lead block, 5. support rod, 6. sonar, 7. sleeve, 8. pressure sensor, 9. ball bearing, 10. shrapnel, 11. pull rope. DETAILED DESCRIPTION

[0014] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0015] like Figure 1-2 As shown, a precise measurement and positioning device for marine drilling comprises a shell 1, the shell 1 is elliptical, two chambers are arranged in the shell 1, a partition 2 is arranged between the two chambers, the two chambers are symmetrical about the axis of the shell 1, the partition 2 is parallel to the axis, two rectangular grooves are arranged in the chamber, a sonar assembly is arranged in the rectangular groove, one end of the rectangular groove is open, and the open end of the rectangular groove is connected to the partition 2;

[0016] The sonar assembly includes a sonar 6, a suspension rope 3, a lead block 4, a support rod 5 and two pull ropes 11, one end of the suspension rope 3 is connected to the partition 2, the other end of the suspension rope 3 is connected to the lead block 4, one end of the support rod 5 is connected to the sonar 6, the other end of the support rod 5 is connected to the end of the lead block 4 away from the suspension rope 3, the suspension rope 3, the lead block 4, the support rod 5 and the sonar 6 are connected in sequence, the two pull ropes 11 are respectively arranged on both sides of the sonar 6, one end of the pull rope 11 is connected to the lead block 4, the other end of the pull rope 11 is connected to the bottom of the rectangular groove, and the suspension rope 3 is located at the opening of the rectangular groove;

[0017] A sleeve 7 is vertically arranged in the partition 2, and pressure sensors 8 are arranged at both ends of the sleeve 7. A ball 9 is arranged in the sleeve 7, and the ball 9 abuts against one of the pressure sensors 8. Two spring clips 10 are arranged in the middle of the inner side of the sleeve 7. The distances between the spring clips 10 and the two pressure sensors 8 are equal. The two spring clips 10 are located between the two pressure sensors 8, and the two spring clips 10 are symmetrical about the ball 9. The distance between the spring clip 10 and the pressure sensor 8 is greater than the radius of the ball 9, and the distance between the spring clip 10 and the pressure sensor 8 is less than the diameter of the ball 9.

[0018] Preferably, a PLC is further provided in the housing 1, and the pressure sensor 8 and the sonar 6 are both electrically connected to the PLC.

[0019] Preferably, the length of the pull rope 11 is smaller than the width of the rectangular groove, and the length of the pull rope 11 is smaller than the depth of the rectangular groove.

[0020] In fact, the appearance and function of the device are similar to those of an unmanned remote-controlled boat, which travels on the sea. The interior of the shell 1 is a closed cabin, and the sonar components are actually arranged on the upper and lower sides of the partition 2 respectively. During measurement, the sonar component located under the partition 2 is in working condition.

[0021] In fact, the hanging rope 3 located above the partition 2 is in a relaxed state, and the pulling rope 11 located above the partition 2 is in a tightened state, while the hanging rope 3 located below the partition 2 is in a tightened state and the pulling rope 11 is in a relaxed state.

[0022] Moreover, the length of the pull rope 11 is smaller than the width of the rectangular groove, mainly to prevent the sonar 6 from colliding with the side wall of the rectangular groove; the length of the pull rope 11 is smaller than the depth of the rectangular groove, mainly to prevent the sonar 6 from colliding with the bottom of the rectangular groove.

[0023] At this time, the ball 9 is on the pressure sensor 8 below due to its own gravity, and the sonar 6 is suspended below the suspension rope 3 through the support rod 5 and the lead block 4. At this time, the sonar 6 is only balanced by its own gravity and the vertical upward pulling force. When the shell 1 shakes, various fluctuations will occur at the upper end of the suspension rope 3, but the sonar 6 at the lower end can always remain in a vertical downward state, thereby ensuring that the sound waves are always emitted downward, improving the accuracy of emission and reception, and the pull ropes 11 on both sides play a limiting role to prevent the sonar 6 from hitting the wall of the rectangular groove due to severe shaking and being damaged, and when the shell 1 flips 180°, the two pull ropes 11 can replace the suspension rope 3 to exert a pulling force on the sonar 6 to prevent it from falling and being damaged. At this time, the suspension rope 3 is in a relaxed state.

[0024] When the shell 1 has not flipped over, the ball 9 can always be pressed on the pressure sensor 8 in contact with it under the action of the spring 10. After the pressure sensor 8 detects the pressure, it is transmitted to the PLC, and the PLC controls the sonar 6 at the corresponding position to work. When the shell 1 flips over, the ball 9, under the dominant effect of its own gravity, squeezes open the constraints of the two springs 10 on it and falls onto the opposite pressure sensor 8, and the PLC controls the sonar 6 located on the other side of the partition 2 to work.

[0025] That is, even if the measuring device capsizes due to large waves, it can still achieve normal and accurate data measurement.

[0026] Compared with the existing technology, the precise measurement and positioning device for marine drilling can make the sonar 6 always maintain a vertical downward state to emit sound waves and complete the measurement with high accuracy. Even if the device flips 180°, it can also achieve automatic measurement switching, which has strong practicality.

[0027] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A precise measurement and positioning device for marine drilling, characterized in that: The invention comprises a shell, wherein the shell is elliptical, two chambers are arranged in the shell, a partition is arranged between the two chambers, the two chambers are symmetrical about the axis of the shell, the partition is parallel to the axis, two rectangular grooves are arranged in the chamber, a sonar assembly is arranged in the rectangular groove, one end of the rectangular groove is open, and the open end of the rectangular groove is connected to the partition; The sonar assembly includes a sonar, a suspension rope, a lead block, a support rod and two pull ropes, one end of the suspension rope is connected to the partition, the other end of the suspension rope is connected to the lead block, one end of the support rod is connected to the sonar, the other end of the support rod is connected to an end of the lead block away from the suspension rope, the suspension rope, the lead block, the support rod and the sonar are connected in sequence, two pull ropes are respectively arranged on both sides of the sonar, one end of the pull rope is connected to the lead block, the other end of the pull rope is connected to the bottom of the rectangular groove, and the suspension rope is located at the opening of the rectangular groove; A sleeve is vertically arranged in the partition, and pressure sensors are arranged at both ends of the sleeve. A ball is arranged in the sleeve, and the ball abuts against one of the pressure sensors. Two spring clips are arranged in the middle of the inner side of the sleeve, and the distances between the spring clips and the two pressure sensors are equal. The two spring clips are located between the two pressure sensors, and the two spring clips are symmetrical about the ball. The distance between the spring clip and the pressure sensor is greater than the radius of the ball, and the distance between the spring clip and the pressure sensor is less than the diameter of the ball.

2. The precise measurement and positioning device for marine drilling according to claim 1, characterized in that: A PLC is also arranged in the shell, and the pressure sensor and the sonar are both electrically connected to the PLC.

3. The precise measurement and positioning device for marine drilling according to claim 1, characterized in that: The length of the pull rope is smaller than the width of the rectangular groove, and the length of the pull rope is smaller than the depth of the rectangular groove.

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