CN218481399U

CN218481399U - Portable instrument for screening water quality

Info

Publication number: CN218481399U
Application number: CN202222620458.XU
Authority: CN
Inventors: 肖裕泽; 陈灿; 曹俊; 叶脉; 卢欢亮; 汪永红
Original assignee: GUANGDONG PROVINCIAL ACADEMY OF ENVIRONMENTAL SCIENCE
Current assignee: GUANGDONG PROVINCIAL ACADEMY OF ENVIRONMENTAL SCIENCE
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-14
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a portable water quality screening instrument, which comprises a casing, a controller and a power supply assembly, wherein the controller and the power supply assembly are installed in the casing, at least two cuvette grooves are arranged at the upper part of the casing, one side of each cuvette groove, which is positioned inside the casing, is provided with a light source and a light filter, the opposite side is provided with a light detector, the light source, the light filter, the cuvette grooves and the light detector are sequentially arranged in the direct irradiation direction of light, a plurality of water quality parameters are detected simultaneously, and the detection efficiency is high; the shell is provided with through holes corresponding to the notches of the cuvette grooves, the shell is rotatably provided with a flip cover, the flip cover is light-tight and completely shields all the through holes, external light can be effectively shielded, the accuracy of a detection result is improved, and the lower part of the shell is provided with a touch display screen; the bottom surface of casing and cell groove lie in the position with one side down the protrusion form convex shell portion, and the shading box provides sufficient installation space, and follow the hand slippage when avoiding handheld as far as possible and drop.

Description

Portable instrument for screening water quality

Technical Field

The utility model belongs to the technical field of water quality testing, concretely relates to portable appearance of quality of water examination.

Background

The water quality monitoring is a process for monitoring and measuring the types of pollutants in a water body, the concentrations and the change trends of various pollutants and evaluating the water quality condition, and generally detects four indexes of COD, ammonia nitrogen, orthophosphate and nitrate/nitrite. The monitoring personnel need send the laboratory to again in the open air sample and detect, because the detection cycle in laboratory is longer, in order to reduce the laboratory and send a sample, improve water quality monitoring efficiency, the measurement personnel can carry the spectrophotometry equipment method scene to carry out preliminary examination to the water sample, carry simple and easy reagent promptly and carry out the preliminary treatment to the water sample, pack the cell into with the water sample after handling again, put into equipment with the cell at last and detect. Because the spectrophotometric equipment in a laboratory is large in size and inconvenient to carry, a handheld water quality screening instrument appears in the field, but the water quality screening instrument generally only has one cuvette groove, can only be used for placing one water sample and can only detect one index of four indexes, namely COD (chemical oxygen demand), ammonia nitrogen, orthophosphate and nitrate/nitrite, and the detection efficiency is low.

In order to solve the above problems, patent document with application number CN201620133502.6 discloses a multifunctional water source water quality monitoring device, which comprises a machine body, a water filling port, a PH detector, a temperature monitor, a dissolved oxygen detector, a nitrite detector, a sulfide detector, an ammonia nitrogen detector, a phosphate detector, a residual chlorine detector, a residual water outlet, a data processor, a display screen, a power button and a power indicator, the machine body upside is provided with the water filling port, and the right side of the water filling port is sequentially provided with the PH detector through a pipeline, the temperature monitor, the dissolved oxygen detector, the nitrite detector, the sulfide detector, the ammonia nitrogen detector. This patent can detect PH, temperature monitor, dissolved oxygen, nitrite, sulphide, ammonia nitrogen, phosphate, chlorine residue data index simultaneously, and the function is various, detects convenient and fast.

The above patent only discloses that the water quality detection efficiency can be improved by integrating a plurality of water quality detection modules on one device, but does not relate to how to design a reasonable machine body structure, and the technology has room for improvement.

Disclosure of Invention

To the problem among the correlation technique, the utility model provides a portable appearance of quality of water examination to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this:

a portable water quality screening instrument comprises a casing, a controller and a power supply assembly, wherein the controller and the power supply assembly are installed in the casing, at least two cuvette grooves are formed in the upper portion of the casing, a light source and a light filter are arranged on one side, located inside the casing, of each cuvette groove, a light detector is arranged on the opposite side, and the light source, the light filter, the cuvette grooves and the light detectors are sequentially arranged in the direct light direction of light;

the shell is provided with through openings corresponding to the notches of the cuvette grooves, the shell is rotatably provided with a turnover cover, the turnover cover is light-tight and completely shields all the through openings,

the touch display screen is arranged at the lower part of the shell, and the power supply assembly, the controller, the light source, the light detector and the touch display screen are electrically connected;

the bottom surface of the shell and the position of the cuvette groove on the same side are protruded downwards to form a convex shell part.

Preferably, install a shading box in the casing, light source, light filter, cell groove and light detector all install in the shading box, the box mouth of shading box is hugged closely around the opening, the lateral wall of shading box is equipped with the line hole that only supplies the electric wire to pass through.

Preferably, the light shielding box has a gap between the rest box walls except the box opening and the machine shell.

Preferably, the controller, the power supply assembly and the touch display screen are all arranged in the lower space of the casing, so that the center of gravity of the portable water quality screening instrument is lower.

Preferably, the length of the boss portion is no more than one third of the length of the casing.

Preferably, the convex shell part positioned on the upper part of the machine shell is provided with an inclined shell wall which is connected with the bottom surface of the lower part of the machine shell.

Preferably, the inner cover surface of the flip cover is provided with a prompt sign about the detection index corresponding to different cuvette grooves.

Preferably, the inner cover surface of the turnover cover is provided with a groove, and the prompt mark is arranged at the bottom of the groove.

Preferably, one side of flip rotates to be connected the casing, and first magnet is installed to relative opposite side, the casing is equipped with the second magnet, when flip upset is closed, first magnet and second magnet inter attraction.

Preferably, the casing is provided with four cuvette grooves which respectively correspond to four indexes of COD, ammonia nitrogen, orthophosphate and nitrate/nitrite.

The utility model has the advantages that:

firstly, the utility model is provided with at least two cell troughs and corresponding light components (namely a light source, a light filter and a light detector), each cell trough can detect one water quality index, and a plurality of water quality parameters can be detected simultaneously, for example, the utility model can detect four indexes of COD, ammonia nitrogen, orthophosphate and nitrate/nitrite simultaneously, and has high detection efficiency;

secondly, the utility model is provided with the light-tight flip cover which completely shields all the through openings, thereby effectively shielding the external light and improving the accuracy of the detection result of the utility model;

finally, the utility model discloses still set up and lie in with the cell groove with the convex hull portion of one side, the effect of convex hull portion: firstly do the lightproof box provides sufficient installation space, secondly when measurement personnel take in the hand operation, protruding shell portion has certain card hand effect, avoids as far as possible the utility model discloses fall off from the hand slippage.

Drawings

Fig. 1 is one of the schematic structural diagrams (flip open) of the present invention;

fig. 2 is a second schematic structural diagram (the flip cover is closed) of the present invention;

FIG. 3 is one of the exploded views of the present invention;

FIG. 4 is a second exploded view of the present invention;

fig. 5 is a schematic structural diagram of the housing of the present invention;

fig. 6 is a sectional view of the structure (schematic view of inclined placement state) of the present invention.

Description of the labeling:

5. a cover is turned; 501. a first magnet; 502. a prompt sign; 503. a groove;

6. a cuvette trough;

7. a housing; 701. a boss portion; 701a, an inclined shell wall; 702. a second magnet; 703. a port;

8. a touch display screen;

9. a charging port;

10. a switch;

11. a controller;

12. a shading box; 1201. a wire hole;

13. a rechargeable battery is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-6, the portable water quality screening instrument comprises a casing 7, a controller 11 installed in the casing 7, a power supply assembly and a switch 10, wherein the power supply assembly comprises a rechargeable battery 13 and a charging port 9, and the casing 7 is provided with an opening exposing the switch 10, the charging port 9 and a touch display screen.

The upper portion of casing 7 is equipped with two at least cell slots 6, in this embodiment, casing 7 is equipped with four cell slots 6, corresponds four indexs of detection COD, ammonia nitrogen, orthophosphate and nitrate/nitrite respectively.

A light source and a light filter are arranged on one side of each cuvette groove 6, which is positioned in the casing 7, and a light detector is arranged on the opposite side of each cuvette groove 6, wherein the light source, the light filter, the cuvette groove 6 and the light detector are sequentially arranged in the direct light direction of light;

the shell 7 is provided with a through hole 703 corresponding to the notch of the cuvette groove 6, the shell 7 is rotatably provided with a turnover cover 5, the turnover cover 5 is light-proof and completely blocks all the through holes 703,

the lower part of the shell 7 is provided with a touch display screen 8, and the power supply assembly, the controller, the light source, the light detector and the touch display screen 8 are electrically connected;

the bottom surface of the housing 7 and the position of the cuvette groove 6 on the same side are protruded downwards to form a convex shell part 701.

Firstly, this embodiment is equipped with at least two cell channels 6 and the light subassembly that corresponds (namely light source, light filter and light detector), and each cell channel 6 can all detect a quality of water index, realizes detecting a plurality of quality of water parameters simultaneously, can detect four indexes of COD, ammonia nitrogen, orthophosphate and nitrate/nitrite simultaneously if this embodiment, and detection efficiency is high;

secondly, the flip cover 5 which is light-tight and completely blocks all the through holes 703 is arranged in the embodiment, so that external light can be effectively shielded, and the accuracy of the detection result of the embodiment is improved;

finally, this embodiment has still set up and has located the convex hull portion 701 with the cell slot 6 with one side, the effect of convex hull portion 701: firstly, do the light-shielding box 12 provides sufficient installation space, secondly when the measurement personnel take the operation in hand, protruding shell part 701 has certain card hand effect, avoids this embodiment to fall from the hand slippage as far as possible.

Light-related parts such as a light source, a light filter, a light detector and the like are consistent with a commercially-available handheld water quality screening instrument and are conventional parts, and are not shown in the attached drawings. This embodiment sets up the light source that corresponds the wave band in order to realize the analysis to quality of water in the cell groove 6 one side that detects different indexs, promptly the light of light source transmission forms specific wave band light through the light filter, then again through the cell groove 6 of placing the water sample, is received by the light detector at last, the controller is through the light intensity change of the appointed wavelength of analysis, and then obtains COD, ammonia nitrogen, orthophosphate and nitrate/nitrite's concentration information respectively, passes through concentration information again 8 touch-control display screen show.

The water quality detection principle of this embodiment is spectrophotometry, which is the most common water quality detection method, and the detection principle and the data processing module design thereof are well-established, and are conventional technologies in the field, which are not innovative points of this embodiment, and are not described herein again.

Because the both sides of cell slot 6 all need walk the line in order to connect the electricity light source and light detector, and the inside line of walking of shading box 12 is obviously too narrow and the installation degree of difficulty is high, still can shelter from light, consequently, in this embodiment, shading box 12 except hugging closely all around of opening 703 outside the box mouth, all the other box walls all had the interval with casing 7, for walking the reservation of sufficient space.

In this embodiment, install a shading box 12 in the casing 7, light source, light filter, cell groove 6 and light detector are all installed in the shading box 12, the box mouth of shading box 12 is hugged closely around opening 703, the lateral wall of shading box 12 is equipped with only supplies the line hole 1201 that the electric wire passes through. The embodiment is provided with the flip cover 5 for shielding external light, and the housing 7 is provided with the black opaque shading box 12 for shielding light of the touch display screen 8 and other external stray light, so that the accuracy of the detection result of the embodiment is improved.

In this embodiment, controller 11, power supply module and touch-control display screen 8 all install the lower part space of casing 7 makes the focus of quality of water screening portable instrument leans on down, cooperates bulge 701, and the present embodiment presents the tilt state towards measurement personnel when keeping flat, accords with measurement personnel's sight angle, conveniently looks over data and operation.

Specifically, the length of the convex shell part 701 is not more than one third of the length of the casing 7, the lower part of the embodiment tends to tilt up due to the excessively long convex shell part 701, so that the inclined placement function is unstable, the non-convex shell part 701 area is generally a hand-held part, and the excessively long convex shell part 701 causes the hand-held part to be excessively small.

In this embodiment, the protruding housing part 701 at the upper part of the housing 7 has an inclined housing wall 701a connected to the bottom surface of the lower part of the housing 7, so as to avoid the formation of a structure for scraping the wires and also to assist the above-mentioned inclined placement function.

Consider that the outward appearance of cell groove 6 is identical, and the preliminary treatment of the water sample that every water quality index corresponds is different, in order to avoid putting into wrong cell groove 6 through the water sample of preliminary treatment, in this embodiment, flip 5's interior capping corresponds differently cell groove 6 is equipped with the suggestion mark 502 about detecting the index, opens when testing personnel flip 5 puts into the cell that is equipped with the water sample, suggestion mark 502 just in time faces testing personnel, can look over the detection index that every cell groove 6 corresponds directly perceivedly, avoids putting wrong cell groove 6 through the water sample cell of preliminary treatment, and simultaneously, the suggestion mark 502 that is located flip 5 inboards is not exposed in the external environment, is difficult for being scratched and then disappears gradually.

Because the manufacturers that the height of the cuvette and the height, the shape and the like of the cuvette cover are different slightly, in the embodiment, the inner cover surface of the turnover cover 5 is provided with the groove 503, the prompt mark 502 is arranged at the groove bottom of the groove 503, the scratch of the cuvette cover which is convex after the prompt mark 502 is placed is avoided, and the prompt mark 502 also has the function of prompting the setting position of the prompt mark 502.

Specifically, because the volume of this embodiment is small and exquisite, consequently the inboard area of flip 5 is comparatively limited, and the suggestion mark 502 adopts the abbreviation, is "COD", "ammonia nitrogen", "phosphoric acid", "and" nitric acid "respectively, does not influence the understanding of measurement personnel, suggestion mark 502 can adopt forms such as laser etching, sticker attached to the inboard of flip 5.

In this embodiment, one side of flip 5 rotates to be connected casing 7, and first magnet 501 is installed to relative opposite side, casing 7 is equipped with second magnet 702, when flip 5 overturns the closure, first magnet 501 and second magnet 702 inter attraction avoid flip 5 opens easily and introduces external light in the testing process, and simultaneously the measurement personnel also need not to examine at every turn carelessly whether flip 5 is closed targets in place.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention are also intended to fall within the scope of the appended claims. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A portable water quality screening instrument comprises a casing, a controller and a power supply assembly, wherein the controller and the power supply assembly are installed in the casing;

the shell is provided with through openings corresponding to the openings of the cuvette grooves, the shell is rotatably provided with a turnover cover, the turnover cover is light-tight and completely shields all the through openings,

2. The portable water quality screening instrument according to claim 1, wherein a light shielding box is installed in the casing, the light source, the light filter, the cuvette groove and the light detector are all installed in the light shielding box, a box opening of the light shielding box is tightly attached to the periphery of the through opening, and a wire hole only allowing a wire to pass through is formed in the side wall of the light shielding box.

3. The portable water quality screening instrument of claim 2, wherein the light shielding box has a space between the other box walls and the housing except for the box opening.

4. The portable water quality screening instrument of any one of claims 1 to 3, wherein the controller, the power supply module and the touch display screen are all installed in a lower space of the housing, so that the center of gravity of the portable water quality screening instrument is lower.

5. A water quality screening portable instrument according to any one of claims 1 to 3 wherein the length of the boss portion is no more than one third of the length of the housing.

6. The portable water quality screening apparatus of any one of claims 1 to 3 wherein the raised portion of the housing at the upper portion of the housing has an inclined wall that is connected to the bottom surface of the lower portion of the housing.

7. The water quality screening portable instrument according to any one of claims 1 to 3, wherein prompt marks related to detection indexes are arranged on the inner cover surface of the flip corresponding to different cuvette grooves.

8. The portable water quality screening instrument of claim 7, wherein a groove is formed in the inner cover surface of the flip cover, and the prompt mark is arranged at the bottom of the groove.

9. The portable water quality screening instrument according to any one of claims 1 to 3, wherein one side of the flip is rotatably connected to the housing, the opposite side of the flip is provided with a first magnet, the housing is provided with a second magnet, and when the flip is turned over and closed, the first magnet and the second magnet attract each other.

10. The portable water quality screening instrument according to any one of claims 1 to 3, wherein the housing is provided with four cuvette grooves for detecting four indexes of COD, ammonia nitrogen, orthophosphate and nitrate/nitrite.