Water flow interference elimination device for underwater measurement

Abstract

The utility model relates to the technical field of hydrogeological survey, in particular to a water flow interference eliminating device for underwater measurement, which comprises an underwater measurement vertical rod, a fixing pin, a flow choking shell and a measuring instrument, and the underwater measurement vertical rod is indirectly connected with the flow choking shell through the fixing pin. The measuring instrument is arranged in the flow blocking shell and located at the bottom end of the fixing pin. According to the water flow interference elimination device for underwater measurement, the structure of the underwater measurement vertical rod and the flow blocking shell is arranged, so that a measurement instrument can be hung on the underwater measurement vertical rod and is subjected to the water flow impact blocking effect of the flow blocking shell, and the structure of the middle shaft pipe and the balance weight ball is arranged on the measurement head; performance of the underwater measuring instrument in a complex environment is improved, namely water flow interference from the underwater environment is effectively eliminated, the bottom of the measuring head is kept horizontal, and accuracy and reliability of measured data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogeological survey, in particular to a water flow interference elimination device used for underwater measurement. Background Art

[0002] When it comes to underwater measurement data for scientific research, ocean exploration, and ship navigation, accurate measurement data is of great significance to the surveyed waters. However, due to the complexity of the underwater environment, measuring instruments are often subject to various interferences in practical applications, especially the impact of ship movement and water flow. When a ship moves in the ocean, it will vibrate and shake, which will affect the transmission of motion to the measuring instrument and may cause the measuring head to tilt. The impact force of the water flow will exert an unstable external force on the measuring instrument, further increasing the possibility of instability of the measuring head, which will cause the measuring head at the bottom of the measuring instrument to be unable to remain on the horizontal plane, thereby causing deviation in the measurement data, and seriously affecting the accuracy of the measurement data.

[0003] Therefore, there is an urgent need to provide an underwater measuring device that can effectively eliminate water flow interference, ensure that the measuring instrument always remains in a vertical state, and the bottom of the measuring head remains horizontal, thereby ensuring the accuracy and reliability of the measurement data. Utility Model Content

[0004] The purpose of the present utility model is to provide a device for eliminating water flow interference for underwater measurement, so as to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned object, the utility model discloses a water flow interference elimination device for underwater measurement, comprising an underwater measuring pole, a fixing pin, a flow blocking shell, and a measuring instrument, wherein the underwater measuring pole is indirectly connected to the flow blocking shell via the fixing pin, and the measuring instrument is provided inside the flow blocking shell and at the bottom end of the fixing pin;

[0006] The structure of the baffle housing includes a shell, a pin sleeve is fixedly connected to the middle of the upper surface of the shell, a second through hole is opened in the middle of the side of the pin sleeve, a rod groove is opened inside the pin sleeve, and a device compartment is opened inside the shell.

[0007] Optionally, the structure of the underwater measuring pole includes a tube body, a buckle is fixedly connected to the upper surface of the tube body, a first through hole is opened on the side surface of the bottom end of the tube body, and a hook is fixedly connected to the inner wall of the bottom end of the tube body.

[0008] Optionally, the structure of the measuring instrument includes a central axis tube, the upper surface of the central axis tube is fixedly connected to a hanger, the outer wall of the central axis tube is fixedly sleeved with a counterweight ball, a measuring head is provided at the bottom of the central axis tube, a signal transmission line is fixedly connected to the middle of the upper surface of the measuring head, and the signal transmission line passes through the inner wall of the central axis tube, and a detection sensor is provided on the bottom surface of the measuring head.

[0009] Optionally, the structure of the fixing pin includes a screw and a nut, and one end of the screw is movably connected to the inside of the nut, and the hook is movably connected to the hanger, and is used to hang the central axis tube on the hook at the bottom end, ensuring that the measuring instrument is in a vertical state, that is, the signal transmission line at the bottom of the measuring head can be on the horizontal plane of monitoring, and the outer wall of the tube body is movably connected to the inner wall of the second through hole, and is used to connect the shell to the outside of the measuring instrument, limit the position through the tube body and block the impact of water flow.

[0010] Optionally, the diameter of the second through hole is equal to the diameter of the first through hole, and is used to insert the screw through the hook and the second through hole, and tighten the screw with a nut, so that the shell can be firmly connected to the tube body to prevent the shell from loosening. The diameter of the rod groove matches the diameter of the outer wall of the tube body, and is used to sleeve the tube body into the internal rod groove of the second through hole. The length of the screw is greater than the diameter of the second through hole, and is used to penetrate the second through hole and tighten the nut to the screw on the outer wall of the pin sleeve. The diameter of the counterweight ball is smaller than the diameter of the placement chamber, and is used to place the measuring instrument inside the shell, so that when the shell is subjected to external force, the slight deflection of the tube body will not affect the vertical upward state of the measuring instrument inside the shell.

[0011] Optionally, the underwater measuring pole, fixing pin and flow-blocking shell are made of the same material, which is a high-strength synthetic material with the characteristics of corrosion resistance, high strength, durability, easy processing and electrical insulation. The material of the counterweight ball is tungsten alloy with an anti-corrosion treated surface, which has the characteristics of corrosion resistance, high density and large mass. The shape of the shell is a cylindrical tube, that is, the side is streamlined, which is used to reduce water flow resistance and disperse the impact force of the water flow.

[0012] Optionally, the outer sheath of the signal transmission line is made of water-resistant and corrosion-resistant polyurethane material, which has the characteristics of corrosion resistance, water resistance, wear resistance and flexibility, and one end is a communication interface, which is connected to the communication port of the external control device, and can directly transmit underwater measurement data signals and input control instructions of the external device.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] In the water flow interference elimination device for underwater measurement, by providing the structure of an underwater measuring pole and a flow-blocking shell, the measuring instrument can be suspended on the underwater measuring pole and blocked from water flow impact by the flow-blocking shell. In addition, a structure of a central axis tube and a counterweight ball is provided on the measuring head, thereby improving the performance of the underwater measuring instrument in complex environments, that is, effectively eliminating water flow interference from the underwater environment, and ensuring that the measuring instrument always remains in a vertical state and the bottom of the measuring head remains horizontal, thereby ensuring the accuracy and reliability of the measurement data and achieving the effect of long-term stable operation in harsh marine environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of a device for eliminating water flow interference for underwater measurement according to the present invention.

[0016] Figure 2 The utility model is a schematic diagram of the explosion structure of the water flow interference elimination device used for underwater measurement.

[0017] Figure 3 This is a schematic diagram of the flow-blocking shell structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the local structure of the measuring instrument of the present utility model.

[0019] Figure 5 It is a partial cross-sectional structural diagram of the water flow interference elimination device of the present invention.

[0020] The accompanying drawings are marked as follows: 1. Underwater measuring pole; 101. Tube body; 102. Buckle; 103. First through hole; 104. Hook; 2. Fixing pin; 201. Screw; 202. Nut; 3. Flow-blocking shell; 301. Shell; 302. Pin sleeve; 303. Second through hole; 304. Rod slot; 305. Device compartment; 4. Measuring instrument; 401. Central axis tube; 402. Hanger; 403. Counterweight ball; 404. Measuring head; 405. Signal transmission line; 406. Detection sensor head. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is described in detail below through specific embodiments.

[0022] Reference Figure 1-5 As shown, the utility model discloses a water flow interference elimination device structure for underwater measurement, comprising an underwater measuring pole 1, a fixing pin 2, a flow blocking shell 3 and a measuring instrument 4, wherein the underwater measuring pole 1 is indirectly connected to the flow blocking shell 3 via the fixing pin 2, and the measuring instrument 4 is provided inside the flow blocking shell 3 and at the bottom end of the fixing pin 2;

[0023] The structure of the baffle housing 3 includes a shell 301, a latch sleeve 302 is fixedly connected to the middle of the upper surface of the shell 301, a second through hole 303 is opened in the middle of the side of the latch sleeve 302, a rod groove 304 is opened inside the latch sleeve 302, and a device compartment 305 is opened inside the shell 301.

[0024] Preferably, the structure of the underwater measuring pole 1 includes a tube body 101, a buckle 102 is fixedly connected to the upper surface of the tube body 101, a first through hole 103 is opened on the side surface of the bottom end of the tube body 101, and a hook 104 is fixedly connected to the inner wall of the bottom end of the tube body 101.

[0025] Preferably, the structure of the measuring instrument 4 includes a central axis tube 401, the upper surface of the central axis tube 401 is fixedly connected to a hanger 402, the outer wall of the central axis tube 401 is fixedly sleeved with a counterweight ball 403, a measuring head 404 is provided at the bottom of the central axis tube 401, the middle part of the upper surface of the measuring head 404 is fixedly connected to a signal transmission line 405, and the signal transmission line 405 passes through the inner wall of the central axis tube 401, and a detection sensor 406 is provided on the bottom surface of the measuring head 404.

[0026] Preferably, the structure of the fixing pin 2 includes a screw 201 and a nut 202, and one end of the screw 201 is movably connected to the inside of the nut 202, and the hook 104 is movably connected to the hanger 402, which is used to hang the central axis tube 401 on the hook 104 at the bottom end of 10, ensuring that the measuring instrument 4 is in a vertical state, that is, the signal transmission line 405 at the bottom of the measuring head 404 can be on the horizontal plane of monitoring, and the outer wall of the tube body 101 is movably connected to the inner wall of the second through hole 303, which is used to connect the shell 301 to the outside of the measuring instrument 4, limit the position through the tube body 101 and block the impact of water flow.

[0027] Preferably, the diameter of the second through hole 303 is equal to the diameter of the first through hole 103, and is used to insert the screw 201 through the hook 104 and the second through hole 303, and tighten the screw 201 with the nut 202, so that the shell 301 can be tightly connected to the tube body 101 to prevent the shell 301 from loosening. The diameter of the rod groove 304 matches the diameter of the outer wall of the tube body 101, and is used to sleeve the tube body 101 into the inner rod groove 304 of the second through hole 303. The length of the screw 201 is greater than the diameter of the second through hole 303, and is used to penetrate the second through hole 303 and tighten the nut 202 to the screw 201 on the outer wall of the pin sleeve 302. The diameter of the counterweight ball 403 is smaller than the diameter of the placement chamber 305, and is used to place the measuring instrument 4 inside the shell 301, so that when the shell 301 is subjected to external force, a slight deflection of the tube body 101 does not affect the vertical upward state of the measuring instrument 4 inside the shell 301.

[0028] Preferably, the underwater measuring pole 1, the fixing pin 2 and the flow-blocking shell 3 are made of the same material, which is a high-strength synthetic material with the characteristics of corrosion resistance, high strength, durability, easy processing and electrical insulation. When used for underwater measurement, it has good tolerance to corrosive water quality, extends its service life, can withstand strong external forces and impact forces, adapts to complex underwater environments, and protects the internal measuring instrument 4 from electrolytic corrosion. The material of the counterweight ball 403 is tungsten alloy with an anti-corrosion treatment on the surface, which has the characteristics of corrosion resistance, high density and large mass. It is used to provide sufficient weight to stabilize and correct the position balance and vertical state of the measuring head 404, so as to ensure that the signal transmission line 405 is always in the horizontal plane to ensure measurement accuracy. The shell 301 is in the shape of a cylindrical tube, that is, the side is streamlined, which is used to reduce water flow resistance and disperse the impact force of water flow to protect the internal measuring instrument 4 from direct impact of water flow.

[0029] Preferably, the outer sheath of the signal transmission line 405 is made of a water-resistant and corrosion-resistant polyurethane material, which has the characteristics of corrosion resistance, water resistance, wear resistance and flexibility. It can remain stable in corrosive environments such as seawater, is not easily corroded by chemicals, prevents moisture from penetrating into the data line, and resists the wear of sand and gravel, marine organisms, etc. in the water to extend its service life, ensure the integrity and timely transmission of the signal, and improve the reliability and accuracy of underwater measurement data. One end of 5 is a communication interface, which is connected to the communication port of the external control device, and can directly transmit the underwater measurement data signal and input the control instructions of the external device.

[0030] Working principle: First, place the measuring instrument 4 into the device compartment 305 inside the housing 301, and pass the signal transmission line 405 through the rod groove 304. Then, insert the end of the tube body 101 with the hook 104 into the rod groove 304, and hook the hook 104 to the hanger 402 on the central axis tube 401. At the same time, pass the signal transmission line 405 from the bottom end of the tube body 101 to the top end, pass it out from the buckle 102, and connect it to the communication port of the external control device. Then, rotate the tube body 101 in the rod groove 304 so that the first through hole 103 is aligned with the second through hole 303 on the pin sleeve 302, and tighten the nut 202 from the screw 201. Next, after inserting the screw 201 through the first through hole 103 and the second through hole 303, tighten the nut 202 on the screw 201, so that the shell 301 is firmly connected to the tube body 101. Finally, during underwater measurement, due to the complex underwater environment and the impact of water flow, the external control device transmits the measurement command from the signal transmission line 405 to the measuring head 404, and the detection sensor head 406 collects the measurement data and transmits it back to the external control device through the signal transmission line 405 to obtain the measurement data. At the same time, the measuring head 404 always maintains a vertical state under the action of the counterweight ball 403, so that the detection sensor head 406 is in a horizontal position to accurately measure the data.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for eliminating water flow interference for underwater measurement, characterized by: The device comprises an underwater measuring pole (1), a fixing pin (2), a flow-blocking housing (3), and a measuring instrument (4), wherein the underwater measuring pole (1) is indirectly connected to the flow-blocking housing (3) via the fixing pin (2), and the measuring instrument (4) is provided inside the flow-blocking housing (3) and at the bottom end of the fixing pin (2); The structure of the flow-blocking housing (3) comprises a shell (301), a latch sleeve (302) is fixedly connected to the middle of the upper surface of the shell (301), a second through hole (303) is provided in the middle of the side surface of the latch sleeve (302), a rod groove (304) is provided inside the latch sleeve (302), and a device compartment (305) is provided inside the shell (301).

2. The device for eliminating water flow interference for underwater measurement according to claim 1, characterized in that: The structure of the underwater measuring pole (1) comprises a tube body (101), a buckle (102) is fixedly connected to the upper surface of the tube body (101), a first through hole (103) is opened on the side surface of the bottom end of the tube body (101), and a hook (104) is fixedly connected to the inner wall of the bottom end of the tube body (101).

3. The device for eliminating water flow interference for underwater measurement according to claim 2, characterized in that: The structure of the measuring instrument (4) includes a central axis tube (401), a hanger (402) is fixedly connected to the upper surface of the central axis tube (401), a counterweight ball (403) is fixedly sleeved on the outer wall of the central axis tube (401), a measuring head (404) is provided at the bottom of the central axis tube (401), a signal transmission line (405) is fixedly connected to the middle of the upper surface of the measuring head (404), and the signal transmission line (405) passes through the inner wall of the central axis tube (401), and a detection sensor (406) is provided on the bottom surface of the measuring head (404).

4. The device for eliminating water flow interference for underwater measurement according to claim 3, characterized in that: The structure of the fixing pin (2) includes a screw (201) and a nut (202), and one end of the screw (201) is movably connected to the inside of the nut (202), the hook (104) is movably connected to the hanger (402), and the outer wall of the tube body (101) is movably sleeved with the inner wall of the second through hole (303).

5. The device for eliminating water flow interference for underwater measurement according to claim 4, characterized in that: The diameter of the second through hole (303) is equal to the diameter of the first through hole (103), the diameter of the rod groove (304) matches the diameter of the outer wall of the tube body (101), the length of the screw (201) is greater than the diameter of the second through hole (303), and the diameter of the counterweight ball (403) is smaller than the diameter of the device chamber (305).

6. The device for eliminating water flow interference for underwater measurement according to claim 4, characterized in that: The underwater measuring pole (1), the fixing pin (2) and the flow-blocking shell (3) are made of the same material, which is a high-strength synthetic material. The material of the counterweight ball (403) is a tungsten alloy with an anti-corrosion surface treatment. The shell (301) is in the shape of a cylindrical tube.

7. The device for eliminating water flow interference for underwater measurement according to claim 4, characterized in that: The outer sheath of the signal transmission line (405) is made of a water-resistant and corrosion-resistant polyurethane material, and one end of the signal transmission line (405) is a communication interface connected to a communication port of an external control device.

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