Sediment-water interface dissolved oxygen content measuring device

Abstract

The utility model relates to the technical field of sediment oxygen content measurement, and discloses a sediment-water interface dissolved oxygen content measuring device which comprises a treatment box piece, a supporting bottom frame arranged at the bottom of the treatment box piece, a measuring device arranged inside the treatment box piece, and a moisture-proof device arranged on the side face of the treatment box piece. The measuring device comprises an inner placing frame, an inserting groove, a magnetic attraction butt joint plate, a magnet bearing seat, a miniature optical fiber dissolved oxygen sensor, a connecting cable, an electric wire and a detection head. According to the sediment-water interface dissolved oxygen content measuring device, the measuring device is arranged, the detection head can be directly inserted into a sediment-water interface, the dissolved oxygen content at the interface can be sensed in real time, information is transmitted to a data display instrument in cooperation with a connecting cable, and the device has the functions of data filtering, calibration and the like; and moreover, the device has a dismounting function, does not need to stay in a tank part in which sediments and water are positioned for a long time, and is not easy to damage.

Description

Technical Field

[0001] The utility model relates to the technical field of sediment oxygen content measurement, in particular to a sediment-water interface dissolved oxygen content measurement device. Background Art

[0002] Dissolved oxygen refers to molecular oxygen dissolved in water. It is closely related to atmospheric pressure, oxygen partial pressure in the air, water temperature, salinity and water quality. It is an important indicator for assessing water quality and the degree of water pollution. It is usually expressed in milligrams of oxygen per liter of water and saturation percentage. A high concentration of dissolved oxygen indicates that the water has a strong self-purification ability; conversely, it indicates that the water may be polluted by organic matter.

[0003] The prior art discloses a sediment-water interface dissolved oxygen content measuring device with publication number: CN208270429U, which belongs to a water body dissolved oxygen measuring device. It aims to provide a water body dissolved oxygen measuring and analysis device that can observe the dissolved oxygen situation along the depth direction of the water body without moving the detection point and has high detection efficiency. It includes a camera, a fluorescent element, and a container; the camera is connected to the computer through a data cable, and the camera lens has a light source fixed in front of the lens, the container is a transparent water tank, and the fluorescent element is a fluorescent sensor film fixed on the inner wall of the transparent water tank. The utility model has a simple structure, easy operation and low cost. It is a measuring device that can reflect the continuous change information of dissolved oxygen in a two-dimensional profile of a water body.

[0004] The above-mentioned water interface dissolved oxygen content measurement device has a short response time of fluorescence. By taking pictures of the fluorescent sensor membrane with a camera, the continuous change information of dissolved oxygen in the two-dimensional profile of the sediment-water interface can be obtained. However, the above-mentioned device uses a miniature fiber optic dissolved oxygen sensor when performing measurements. The above-mentioned miniature fiber optic dissolved oxygen sensor is fixedly set and does not have the function of disassembly, resulting in the need to stay inside the box where the sediment and water are located for a long time. It is easy to be damaged and has a low service life. The effect during use is not good, which needs to be improved. Utility Model Content

[0005] The utility model aims to provide a device for measuring dissolved oxygen content at a sediment-water interface to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sediment-water interface dissolved oxygen content measuring device, comprising a processing box, a supporting base frame is arranged at the bottom of the processing box, a measuring device is arranged inside the processing box, and a moisture-proof device is arranged on the side of the processing box.

[0007] The measuring device includes an inner mounting frame, an insertion slot, a magnetic docking plate, a magnet bearing seat, a miniature fiber optic dissolved oxygen sensor, a connecting cable, an electric wire and a detection head. The inner mounting frame is fixedly connected to the inside of the processing box near the bottom, the insertion slot is opened at the top of the inner mounting frame, the magnetic docking plate is fixedly connected to the inside of the inner mounting frame, the miniature fiber optic dissolved oxygen sensor is fixedly connected to the top of the magnet bearing seat, the connecting cable is fixedly connected to the top of the miniature fiber optic dissolved oxygen sensor, the electric wire is fixedly connected to the front of the miniature fiber optic dissolved oxygen sensor, and the detection head is fixedly connected to the front of the electric wire.

[0008] Preferably, the moisture-proof device includes a moisture-proof shell, a moisture-absorbing pad, a separator block, a frame plate, a connecting base, a magnetic column and a magnet column. The top of the connecting base is fixedly connected to a data display instrument, the moisture-proof shell is connected to the top of the data display instrument, the frame plate is fixedly connected to the top of the moisture-proof shell, the separator block is fixedly connected to the inside of the frame plate, the moisture-absorbing pad is inserted into the inside of the frame plate, the magnetic column is fixedly connected to the top of the connecting base, and the magnet column is fixedly connected to the bottom of the moisture-proof shell.

[0009] Preferably, an insertion slot is provided inside the inner placement frame, and the area of ​​the magnet bearing seat is equal to the area of ​​the insertion slot. The rectangular block at the side end is aligned with the insertion slot at the top of the inner placement frame, and the magnet bearing seat is inserted into the inner placement frame and lowered. At this time, the rectangular block is also inserted into the insertion slot, and the two are in contact and magnetically adsorbed together. The device is installed so that the device has the function of plug-in, and the magnetic connection is used to ensure the stability of placement and insertion without being pulled by external forces.

[0010] Preferably, a rectangular block is fixedly connected to the side of the magnet bearing seat, the area of ​​the rectangular block is equal to the area of ​​the insertion slot, and the rectangular block is inserted into the top of the inner mounting frame.

[0011] Preferably, the top of the supporting chassis is fixedly connected to a column, and the connecting chassis is fixedly connected to the top of the column.

[0012] Preferably, the bottom area of ​​the magnet column is equal to the top area of ​​the magnetic column, the magnet column is magnetically connected to the magnetic column, and the moisture-proof shell is placed on the top of the connecting frame through the cooperation of the magnet column and the magnetic column, and can be disassembled. A moisture-absorbing pad is arranged on the top to absorb splashed water and can be easily replaced, thereby ensuring the moisture-proof effect.

[0013] Preferably, one end of the connecting cable away from the top of the micro-optical dissolved oxygen sensor is fixedly connected to the left side of the data display instrument.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The sediment-water interface dissolved oxygen content measuring device is provided with a measuring device. The detection head can be directly inserted into the sediment-water interface to sense the dissolved oxygen content at the interface in real time. The information is transmitted to the data display instrument in conjunction with the connecting cable. The device has functions such as data filtering and calibration to ensure the accuracy and stability of the measurement results. It also has the function of disassembly and does not need to stay inside the box where the sediment and water are located for a long time, so it is not easy to be damaged.

[0016] 2. The sediment-water interface dissolved oxygen content measuring device is provided with a moisture-proof device. The moisture-proof shell is placed on the top of the connection base frame through the cooperation of a magnetic column and a magnetic suction column. The shell can be disassembled. A moisture-absorbing pad is provided on the top to absorb splashed water and is easy to replace, thereby ensuring a moisture-proof effect. The setting of the moisture-proof device can increase the service life of the device and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional front view structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional top view of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. processing box; 2. supporting base frame; 3. measuring device; 301. inner placement frame; 302. insertion slot; 303. magnetic docking plate; 304. magnet bearing seat; 305. micro fiber optic dissolved oxygen sensor; 306. connecting cable; 307. electric wire; 308. detection head; 4. moisture-proof device; 401. moisture-proof shell; 402. moisture-absorbing pad; 403. separator block; 404. frame plate; 405. connecting base frame; 406. magnetic column; 407. magnet column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4, the utility model provides the following technical solutions:

[0024] A device for measuring dissolved oxygen content at a sediment-water interface comprises a processing box 1, a supporting base frame 2 is arranged at the bottom of the processing box 1, a measuring device 3 is arranged inside the processing box 1, and a moisture-proof device 4 is arranged on the side of the processing box 1.

[0025] The measuring device 3 includes an inner mounting frame 301, an insertion slot 302, a magnetic docking plate 303, a magnet bearing seat 304, a micro-optical fiber dissolved oxygen sensor 305, a connecting cable 306, an electric wire 307 and a detection head 308. The inner mounting frame 301 is fixedly connected to the inside of the processing box 1 near the bottom, the insertion slot 302 is opened at the top of the inner mounting frame 301, the magnetic docking plate 303 is fixedly connected to the inside of the inner mounting frame 301, the micro-optical fiber dissolved oxygen sensor 305 is fixedly connected to the top of the magnet bearing seat 304, the connecting cable 306 is fixedly connected to the top of the micro-optical fiber dissolved oxygen sensor 305, the electric wire 307 is fixedly connected to the front of the micro-optical fiber dissolved oxygen sensor 305, the detection head 308 is fixedly connected to the front of the electric wire 307, and the connecting cable 306 is fixedly connected to the front of the electric wire 307. The end away from the top of the micro-fiber dissolved oxygen sensor 305 is fixedly connected to the left side of the data display instrument. An insertion slot is provided inside the inner mounting frame 301. The area of ​​the magnet support seat 304 is equal to the area of ​​the insertion slot. The rectangular block at the side end is aligned with the insertion slot 302 at the top of the inner mounting frame 301, and the magnet support seat 304 is inserted into the inner mounting frame 301. When it is lowered, the rectangular block is also inserted into the insertion slot 302. The two are in contact and magnetically adsorbed together. The device is installed so that the device has the function of plug-in, and the magnetic connection is used to ensure the stability of the placement and insertion without being pulled by external force. A rectangular block is fixedly connected to the side of the magnet support seat 304. The area of ​​the rectangular block is equal to the area of ​​the insertion slot 302, and the rectangular block is inserted into the top of the inner mounting frame 301.

[0026] The moisture-proof device 4 includes a moisture-proof shell 401, a moisture-absorbing pad 402, a separator 403, a frame 404, a connecting base 405, a magnetic column 406 and a magnet column 407. The top of the connecting base is fixedly connected to a data display instrument. The moisture-proof shell 401 is connected to the top of the data display instrument. The frame 404 is fixedly connected to the top of the moisture-proof shell 401. The separator 403 is fixedly connected to the inside of the frame 404. The moisture-absorbing pad 402 is plugged into the inside of the frame 404. The magnetic column 406 is fixedly connected to the top of the connecting base 405. The magnet column 407 is fixedly connected to the bottom of the moisture-proof shell 401, the top of the supporting base frame 2 is fixedly connected with a column, the connecting base frame 405 is fixedly connected to the top of the column, the bottom area of ​​the magnet column 407 is equal to the top area of ​​the magnetic column 406, the magnet column 407 is magnetically connected to the magnetic column 406, the moisture-proof shell 401 is placed on the top of the connecting base frame 405 through the cooperation of the magnet column 407 and the magnetic column 406, and can be disassembled. A moisture-absorbing pad 402 is arranged on the top to absorb splashed water and can be easily replaced, thereby ensuring the moisture-proof effect.

[0027] When in use, the magnet support seat 304 needs to be installed in the inner mounting frame 301 inside the processing box 1. When inserting, align the rectangular block at the side end with the insertion slot 302 at the top of the inner mounting frame 301, insert the magnet support seat 304 into the inner mounting frame 301, and put it down. At this time, the rectangular block is also inserted into the insertion slot 302. The two are in contact and magnetically adsorbed together. After the device is installed, a miniature optical fiber dissolved oxygen sensor 305, an electric wire 307 and a detection head 308 are arranged on the top of the magnet support seat 304. The detection head 308 is arranged to be directly inserted into the sediment-water interface, and the dissolved oxygen content at the interface is sensed in real time. The information is transmitted to the data display instrument in conjunction with the connecting cable 306, and the device has functions such as data filtering and calibration to ensure the accuracy and The instrument has good stability and the function of being disassembled. It does not need to stay for a long time inside the box where sediment and water are located. It is not easy to be damaged and does not have the problem of low service life. It has a good effect when in use. A moisture-proof device 4 is arranged on the surface of the data display instrument. When in use, the moisture-proof shell 401 arranged on the top can achieve the purpose of moisture-proof at the top and the side to prevent the wires 307 and the connecting cables 306 from splashing water into the instrument during operation and causing damage. The moisture-proof shell 401 is placed on the top of the connecting base frame 405 through the cooperation of the magnet column 407 and the magnetic suction column 406, and can be disassembled. A moisture-absorbing pad 402 is arranged on the top to absorb splashed water and is easy to replace, which can ensure the moisture-proof effect. The setting of the moisture-proof device 4 can increase the service life of the device and has a good use effect.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring dissolved oxygen content at a sediment-water interface, comprising a processing box (1), characterized in that: A supporting base frame (2) is arranged at the bottom of the processing box (1), a measuring device (3) is arranged inside the processing box (1), and a moisture-proof device (4) is arranged on the side of the processing box (1); The measuring device (3) comprises an inner mounting frame (301), an insertion slot (302), a magnetic docking plate (303), a magnet bearing seat (304), a micro-fiber dissolved oxygen sensor (305), a connecting cable (306), an electric wire (307) and a detection head (308); the inner mounting frame (301) is fixedly connected to the inside of the processing box (1) near the bottom; the insertion slot (302) is opened at the top of the inner mounting frame (301); the magnetic docking plate (303) is fixedly connected to the inside of the inner mounting frame (301); the micro-fiber dissolved oxygen sensor (305) is fixedly connected to the top of the magnet bearing seat (304); the connecting cable (306) is fixedly connected to the top of the micro-fiber dissolved oxygen sensor (305); the electric wire (307) is fixedly connected to the front of the micro-fiber dissolved oxygen sensor (305); and the detection head (308) is fixedly connected to the front of the electric wire (307).

2. A sediment-water interface dissolved oxygen content measuring device according to claim 1, characterized in that: The moisture-proof device (4) comprises a moisture-proof shell (401), a moisture-absorbing pad (402), a separator (403), a frame plate (404), a connecting base (405), a magnetic column (406) and a magnet column (407); the top of the connecting base is fixedly connected to a data display instrument; the moisture-proof shell (401) is connected to the top of the data display instrument; the frame plate (404) is fixedly connected to the top of the moisture-proof shell (401); the separator (403) is fixedly connected to the inside of the frame plate (404); the moisture-absorbing pad (402) is plugged into the inside of the frame plate (404); the magnetic column (406) is fixedly connected to the top of the connecting base (405); and the magnet column (407) is fixedly connected to the bottom of the moisture-proof shell (401).

3. A sediment-water interface dissolved oxygen content measuring device according to claim 1, characterized in that: An insertion slot is provided inside the inner placement frame (301), and the area of ​​the magnet bearing seat (304) is equal to the area of ​​the insertion slot.

4. A sediment-water interface dissolved oxygen content measuring device according to claim 1, characterized in that: A rectangular block is fixedly connected to the side of the magnet bearing seat (304), the area of ​​the rectangular block is equal to the area of ​​the insertion slot (302), and the rectangular block is inserted into the top of the inner placement frame (301).

5. A sediment-water interface dissolved oxygen content measuring device according to claim 2, characterized in that: The top of the supporting base frame (2) is fixedly connected to a column, and the connecting base frame (405) is fixedly connected to the top of the column.

6. A sediment-water interface dissolved oxygen content measuring device according to claim 2, characterized in that: The bottom area of ​​the magnet column (407) is equal to the top area of ​​the magnetic column (406), and the magnet column (407) is magnetically connected to the magnetic column (406).

7. The device for measuring dissolved oxygen content at a sediment-water interface according to claim 1, characterized in that: One end of the connection cable (306) away from the top of the micro optical fiber dissolved oxygen sensor (305) is fixedly connected to the left side of the data display instrument.

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