Portable dissolved oxygen tester

Abstract

The utility model relates to the technical field of environment monitoring, and particularly discloses a portable dissolved oxygen tester which comprises a dissolved oxygen detection host, an outer sleeve is sleeved outside a data line, scale marks are arranged on the surface of the outer wall of the outer sleeve, one end of the outer sleeve is connected with the top end of the dissolved oxygen detection host, and a shell sleeve is fixedly arranged at the other end of the outer sleeve. An electromagnet is fixedly arranged at the bottom of the shell sleeve, a metal ring is fixedly arranged at the top of the sleeve, and a controller is fixedly arranged outside the dissolved oxygen detection host. According to the technical scheme, the sleeve is attracted through the electromagnet, when the dissolved oxygen detection head reaches a detected water layer, the sleeve is separated from the shell sleeve by controlling the electromagnet to be powered off, and the problem that the dissolved oxygen detection head is polluted by water of other water layers when the dissolved oxygen detection head does not reach the specified water layer to be detected is solved; not only can the service life of the data line be prolonged, but also the added scale marks facilitate recording of the depth position of the detected water layer.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to a portable dissolved oxygen measuring instrument. Background Art

[0002] At present, dissolved oxygen is one of the important indicators to measure the oxygen content in water bodies. The dissolved oxygen level in water bodies directly affects the biological ecosystem and water quality of the water bodies. The dissolved oxygen level in high water layers usually indicates that the water quality is good and suitable for biological survival, while the dissolved oxygen level in low water layers may indicate that the water body is polluted or affected by hypoxia. Many organisms in water, especially fish and other aquatic organisms, have a high demand for dissolved oxygen. The dissolved oxygen levels in different water layers directly affect the survival and reproduction of aquatic organisms. At present, dissolved oxygen monitors are mainly used to detect dissolved oxygen parameters in water layers. There are the following defects: before reaching the specified water layer, the probe of the dissolved oxygen monitor will contact the upper water in advance and adhere to more pollutants, affecting the accuracy of the detection data; lack of reference, it is impossible to clearly know the specific position of the dissolved oxygen monitor probe reaching the water level, which is in urgent need of improvement. Therefore, we propose a portable dissolved oxygen meter. Utility Model Content

[0003] The utility model aims to provide a portable dissolved oxygen measuring instrument, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable dissolved oxygen measuring instrument, comprising a dissolved oxygen detection host, the dissolved oxygen detection host is electrically connected to a dissolved oxygen detection head through a data line, an outer sleeve is provided on the outside of the data line, and scale lines are provided on the outer wall surface of the outer sleeve, a sleeve is provided on the outside of the dissolved oxygen detection head, one end of the outer sleeve is connected to the top of the dissolved oxygen detection host, and a shell is fixedly provided on the other end, an electromagnet is fixedly provided at the bottom of the shell, a metal ring for magnetically adsorbing and connecting with the electromagnet is fixedly provided on the top of the sleeve, and a controller for controlling the on and off of the electromagnet is fixedly provided on the outside of the dissolved oxygen detection host.

[0005] As a preferred implementation of the technical solution of the present application, a wire storage mechanism and a card block are respectively provided on the outside of the dissolved oxygen detection host, and an arc card groove matching the outer diameter of the sleeve is opened inside the card block.

[0006] As a preferred implementation of the technical solution of the present application, the wire storage mechanism includes a horizontal rod fixed to the outside of the dissolved oxygen detection host, one end of the horizontal rod is hinged to the clamping rod through a hinge, and the other end is fixedly provided with a clamping seat for clamping with one end of the clamping rod.

[0007] As a preferred implementation of the technical solution of the present application, a square card slot matching the vertical cross-sectional shape of the card rod is provided inside the card holder.

[0008] As a preferred implementation of the technical solution of the present application, buckles are fixedly provided on one side of the shell and the sleeve, and the buckle of the shell is connected to the buckle of the sleeve through an elastic rope.

[0009] As a preferred implementation of the technical solution of the present application, a weighted ball is provided at the bottom of the sleeve, and the sleeve is made of polyvinyl chloride.

[0010] As a preferred implementation of the technical solution of the present application, a clamping block is arranged directly below the wire storage mechanism, and a convex strip is arranged on the inner wall of the arc clamping groove of the clamping block.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The technical solution of the present application uses an electromagnetic adsorption sleeve through an electromagnet. When the dissolved oxygen detection head reaches the detection water layer, the electromagnet is controlled to be powered off. At this time, the sleeve is separated from the shell, thereby exposing the dissolved oxygen detection head for water layer dissolved oxygen detection. This solves the problem that the dissolved oxygen detection head is contaminated by water quality of other water layers before reaching the designated water layer to be tested, thereby improving the accuracy of the detection data. By designing an outer sleeve on the outside of the data cable, not only the service life of the data cable can be increased, but also the added scale lines facilitate recording the depth position of the detection water layer.

[0013] 2. The technical solution of the present application is to wind the outer sleeve around the surface of the horizontal rod and to reel in the outer sleeve and the data cable as a whole by clamping the clamping rod and the clamping seat. By clamping the sleeve and the dissolved oxygen detection head as a whole into the clamping block, the whole can be easily carried after being stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a three-dimensional diagram of a portable dissolved oxygen measuring instrument of the utility model;

[0016] Figure 2 The exploded view of the dissolved oxygen detection head, outer sleeve and sleeve;

[0017] Figure 3 It is a structural schematic diagram of the wire storage mechanism.

[0018] In the figure: 1. dissolved oxygen detection host; 2. wire storage mechanism; 201. horizontal rod; 202. clamping rod; 203. clamping seat; 3. clamping block; 4. outer sleeve; 401. scale line; 5. elastic rope; 6. shell; 7. electromagnet; 8. sleeve; 801. metal ring; 9. data line; 10. dissolved oxygen detection head; 11. controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1, as Figure 1-3 As shown, the utility model provides a technical solution: a portable dissolved oxygen measuring instrument, comprising a dissolved oxygen detection host 1, the dissolved oxygen detection host 1 is electrically connected to a dissolved oxygen detection head 10 through a data line 9, an outer sleeve 4 is provided on the outside of the data line 9, and a scale line 401 is provided on the outer wall surface of the outer sleeve 4, a sleeve 8 is provided on the outside of the dissolved oxygen detection head 10, one end of the outer sleeve is connected to the top of the dissolved oxygen detection host 1, and a shell 6 is fixedly provided on the other end, an electromagnet 7 is fixedly provided on the bottom of the shell 6, a metal ring 801 for magnetically adsorbing and connecting with the electromagnet 7 is fixedly provided on the top of the sleeve 8, and a controller 11 for controlling the on and off of the electromagnet 7 is fixedly provided on the outside of the dissolved oxygen detection host 1.

[0021] In a specific embodiment of the present invention, the dissolved oxygen detection host 1 includes a microcontroller, a display screen, a battery and a power control system. The microcontroller is used to receive and process the electrical signal of the dissolved oxygen detection head 10, display the specific value through the display screen, and process the dissolved oxygen detection head 10 based on the electrochemical principle, using the reaction between oxygen and electrodes to determine the dissolved oxygen concentration in the water. The battery not only supplies power to the dissolved oxygen detection host 1, but also supplies power to the electromagnet 7, and the controller 11 controls the power on and off of the electromagnet 7.

[0022] In the preferred technical solution, a wire storage mechanism 2 and a clamping block 3 are respectively provided on the outside of the dissolved oxygen detection host 1. An arc clamping groove matching the outer diameter of the sleeve 8 is provided inside the clamping block 3. The arc clamping groove of the clamping block 3 is used to engage with the sleeve 8. The clamping block 3 is arranged directly below the wire storage mechanism 2. A convex strip is provided on the inner wall of the arc clamping groove of the clamping block 3. The convex strip is provided to increase the friction when the sleeve 8 is engaged and improve the stability.

[0023] In the preferred technical solution, the wire storage mechanism 2 includes a horizontal rod 201 fixed to the outside of the dissolved oxygen detection host 1, one end of the horizontal rod 201 is hinged to the clamping rod 202 through a hinge, and the other end is fixed with a clamping seat 203 for clamping with one end of the clamping rod 202.

[0024] In the preferred technical solution, a square slot matching the vertical cross-sectional shape of the clamping rod 202 is provided inside the clamping base 203. The square slot of the clamping base 203 is used to clamp the clamping rod 202. The clamping rod 202 is used to press the outer sleeve 4 wrapped around the surface of the horizontal rod 201 to prevent the outer sleeve 4 wrapped around the surface of the horizontal rod 201 from becoming loose.

[0025] In the preferred technical solution, buckles are fixedly provided on one side of the shell 6 and the sleeve 8. The buckle of the shell 6 is connected to the buckle of the sleeve 8 through an elastic rope 5. The elastic rope 5 can prevent the sleeve 8 from being lost.

[0026] In the preferred technical solution, a weighted ball is provided at the bottom of the sleeve 8, and the electromagnet 7 loses its magnetism and cannot attract the metal ring 801. Since the sleeve 8 is provided with the weighted ball, the sleeve 8 will be separated from the dissolved oxygen detection head 10. The sleeve 8 is made of polyvinyl chloride, and the polyvinyl chloride (PVC) material can protect the outside of the dissolved oxygen detection head 10 from scratches.

[0027] Working principle: In the initial state, the electromagnet 7 is in the power-off state. When detection is required, the electromagnet 7 is turned on, so that the sleeve 8 is set outside the dissolved oxygen detection head 10 and the metal ring 801 is magnetically fixed to the electromagnet 7. The elastic rope 5 is in a relaxed state. The sleeve 8 is placed vertically in the water area to be tested. The position of the sleeve 8 reaching the water layer is determined by the scale line 401. After reaching the specified water layer, the power supply of the electromagnet 7 is turned off, and the electromagnet 7 loses its magnetism and cannot absorb the metal ring 801. Since the sleeve 8 is equipped with a counterweight ball, the sleeve 8 will be in contact with the dissolved oxygen detection head 10. The head 10 is separated. At this time, the water in the water layer will fully contact the dissolved oxygen detection head 10, so that the dissolved oxygen parameters of the water layer can be measured through the dissolved oxygen detection host 1. The elastic rope 5 can pull the sleeve 8 to prevent it from being lost. After recording the water layer position and measuring the dissolved oxygen parameters, the outer sleeve 4 and the sleeve 8 are moved out of the water surface as a whole for cleaning. Then, the outer sleeve 4 is wound on the surface of the horizontal rod 201 and the outer sleeve 4 and the data cable 9 are rolled up and stored as a whole by clamping the clamping rod 202 and the clamping seat 203. The sleeve 8 and the dissolved oxygen detection head 10 are clamped in the clamping block 3 as a whole to complete the storage.

Claims

1. A portable dissolved oxygen measuring instrument, comprising a dissolved oxygen detection host (1), wherein the dissolved oxygen detection host (1) is electrically connected to a dissolved oxygen detection head (10) via a data line (9), and is characterized in that: The data line (9) is externally sheathed with an outer sleeve (4), and the outer wall surface of the outer sleeve (4) is provided with scale lines (401). The dissolved oxygen detection head (10) is externally sheathed with a sleeve (8), one end of the outer sleeve is connected to the top of the dissolved oxygen detection host (1), and the other end is fixedly provided with a shell (6), the bottom of the shell (6) is fixedly provided with an electromagnet (7), the top of the sleeve (8) is fixedly provided with a metal ring (801) for magnetically adsorbing and connecting with the electromagnet (7), and the outside of the dissolved oxygen detection host (1) is fixedly provided with a controller (11) for controlling the on and off of the electromagnet (7).

2. A portable dissolved oxygen meter according to claim 1, characterized in that: The dissolved oxygen detection host (1) is provided with a wire storage mechanism (2) and a clamping block (3) on the outside, and the clamping block (3) is provided with an arc clamping groove matching the outer diameter of the sleeve (8) on the inside.

3. A portable dissolved oxygen meter according to claim 2, characterized in that: The wire storage mechanism (2) comprises a horizontal rod (201) fixed to the outside of the dissolved oxygen detection host (1), one end of the horizontal rod (201) being hinged to a clamping rod (202) via a hinge, and the other end of the horizontal rod being fixedly provided with a clamping seat (203) for clamping to one end of the clamping rod (202).

4. A portable dissolved oxygen meter according to claim 3, characterized in that: The clamping seat (203) is provided with a square clamping groove inside thereof which matches the vertical cross-sectional shape of the clamping rod (202).

5. A portable dissolved oxygen meter according to claim 1, characterized in that: A buckle is fixedly provided on one side of the shell (6) and the sleeve (8), and the buckle of the shell (6) is connected to the buckle of the sleeve (8) via an elastic rope (5).

6. A portable dissolved oxygen meter according to claim 1, characterized in that: A counterweight ball is arranged at the bottom of the sleeve (8), and the sleeve (8) is made of polyvinyl chloride.

7. A portable dissolved oxygen meter according to claim 2, characterized in that: The clamping block (3) is arranged directly below the wire storage mechanism (2), and a convex strip is arranged on the inner wall of the arc clamping groove of the clamping block (3).

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