阅读说明：本技术 一种比色器及水质分析装置 (Colorimetric device and water quality analysis device ) 是由 苏涛 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种比色器及水质分析装置,所述比色器结合比色管使用,所述比色器包括盒体,所述盒体内具有容腔,所述容腔内具有光源,所述盒体上具有前壁孔,所述前壁孔供移动终端对位于容腔内的比色管进行拍摄,所述前壁孔在所述光源的照射方向上与所述光源错开,所述盒体上具有用于限定比色管的限位部件。本发明在内部光源的光照下对比色管内的液体进行拍照,排出外界光线的干扰,保证拍摄结果的稳定性,同时内部光源倾斜照射在比色管的管壁上,使照射在比色管上的光线相对均匀,保证拍摄结果的准确性。(the invention discloses a colorimetric device and a water quality analysis device, wherein the colorimetric device is used in combination with a colorimetric tube, the colorimetric device comprises a box body, a containing cavity is arranged in the box body, a light source is arranged in the containing cavity, a front wall hole is arranged on the box body, the front wall hole is used for a mobile terminal to shoot the colorimetric tube positioned in the containing cavity, the front wall hole is staggered with the light source in the irradiation direction of the light source, and a limiting component used for limiting the colorimetric tube is arranged on the box body. The invention takes a picture of the liquid in the colorimetric tube under the illumination of the internal light source, discharges the interference of external light and ensures the stability of the shooting result, and meanwhile, the internal light source irradiates the tube wall of the colorimetric tube in an inclined way, so that the light irradiating the colorimetric tube is relatively uniform, and the accuracy of the shooting result is ensured.)

1. The utility model provides a colorimetric device, its characterized in that, colorimetric device combines colour comparison tube, mobile terminal to use together, the colorimetric device includes the box body, have the appearance chamber in the box body, the appearance intracavity has the light source, the front wall hole has been seted up to the box body side, the front wall hole supplies the mobile terminal to shoot the colour comparison tube that is located the appearance intracavity, the front wall hole is in the direction of illumination of light source with the light source staggers, have the stop block who is used for injecing the colour comparison tube on the box body, when the colour comparison tube passes through stop block is fixed in on the box body, the front wall hole with the light source is located the relative both sides of colour comparison tube respectively, and the light source slope shine in the pipe wall of colour comparison tube.

2. The cuvette according to claim 1, wherein the position limiting member comprises a top wall hole and a slot, and the cuvette is inserted into the cavity through the top wall hole and is clamped on the slot.

3. The cuvette according to claim 2, wherein the top wall aperture is vertically offset from the slot.

4. The cuvette according to claim 3, wherein the wall of the top wall hole is inclined, and the cuvette can be inserted into the cavity and clamped on the clamping groove under the guiding action of the wall of the top wall hole.

5. The cuvette according to any one of claims 1 to 4, wherein the light source is arranged obliquely in a direction corresponding to the direction of inclination of the cuvette when inserted into the housing.

6. The cuvette according to claim 1, wherein a sleeve is protruded from the periphery of the front wall hole to the outside of the case, and a photographing tube is connected to the sleeve.

7. The cuvette according to claim 6, wherein the sleeve has a through hole therein, the through hole gradually shrinks in a direction from the end surface of the sleeve to the front wall hole, and the photographing tube is inserted into the through hole.

8. The cuvette according to claim 6, wherein a notch is formed at an end of the photographing tube away from the front wall hole, so that part of light in the cavity can be transmitted out from the notch, and excessive light entering a camera of the mobile terminal to cause overexposure can be avoided.

9. The cuvette according to claim 6, wherein the cartridge is provided with a fixing bracket, and when the cartridge is fixed by the fixing bracket, the photographing tube is tilted upward.

10. A water quality analyzer comprising the cuvette according to any one of claims 1 to 9 and a cuvette, wherein the cuvette is fixed to the housing through the stopper.

Technical Field

The invention relates to the field of water quality analysis, in particular to a colorimetric device and a water quality analysis device.

Background

The restriction of the current water resource shortage and serious water pollution on the development of the economic society of China is increasingly obvious, and the water problem becomes the bottleneck of the development of the economic society of China. Among them, the standard treatment of sewage is an important measure for alleviating water pollution. In the process of sewage treatment, certain water quality parameters of the discharged water are required to meet corresponding requirements, so that corresponding detection means are required to detect the water quality, and the treated sewage can meet the discharge standard.

In the prior art, a specific color developing agent is usually added to a water sample to be measured, and after color development is completed, the water sample is compared with a color comparison card, so that the concentration of a certain water quality parameter in the water sample is obtained. Generally, the colorimetric process is carried out by naked eyes of people, and the process has certain limitation, and because different people have different sensitivity degrees to colors, even if the same water sample, the same colorimetric card and different people have different comparison results.

Therefore, in order to solve the problem of errors caused by human factors, a new technology for photographing and color comparison through a mobile terminal is provided, the technology photographs water quality through the mobile terminal, and the photographed image is compared with a database of the mobile terminal to directly obtain a corresponding comparison result. However, in the process of shooting by the mobile terminal, different illumination intensities are provided in different environments, and different comparison results can be obtained by shooting under different illumination intensities, so that the finally obtained comparison results have larger deviation from the actual conditions.

Disclosure of Invention

In view of the above, the present invention provides a cuvette and a water quality analyzer to overcome the disadvantages of the prior art.

The invention provides a colorimetric device which is used together with a colorimetric tube and a mobile terminal, and comprises a box body, wherein a containing cavity is arranged in the box body, a light source is arranged in the containing cavity, a front wall hole is formed in the side surface of the box body, the front wall hole is used for the mobile terminal to shoot the colorimetric tube positioned in the containing cavity, the front wall hole is staggered with the light source in the irradiation direction of the light source, a limiting part for limiting the colorimetric tube is arranged on the box body, when the colorimetric tube is fixed on the box body through the limiting part, the front wall hole and the light source are respectively positioned on two opposite sides of the colorimetric tube, and the light source irradiates the tube wall of the colorimetric tube obliquely.

As a further alternative of the cuvette of the present invention, the limiting component includes a top wall hole and a clamping groove, and the cuvette is inserted into the cavity through the top wall hole and is clamped on the clamping groove.

As a further alternative to the cuvette of the present invention, the top wall aperture is vertically offset from the slot.

As a further alternative of the cuvette of the present invention, the hole wall of the top wall hole is obliquely disposed, and the cuvette can be inserted into the cavity and clamped on the clamping groove under the guiding action of the hole wall of the top wall hole.

As a further alternative of the cuvette according to the invention, the light source is arranged obliquely and the direction of the inclination coincides with the direction of inclination of the cuvette when inserted into the cuvette holder.

As a further alternative of the cuvette of the present invention, a tube sleeve is convexly provided on the outer side of the box body along the circumferential edge of the front wall hole, and the tube sleeve is connected with a shooting tube.

As a further alternative of the cuvette of the present invention, a through hole is provided in the tube sleeve, the through hole gradually shrinks in a direction from the end surface of the tube sleeve to the front wall hole, and the photographing tube is inserted into the through hole.

As a further alternative of the cuvette of the present invention, a notch is provided at an end of the shooting tube away from the front wall hole, so that part of the light in the cavity can be transmitted out from the notch, and excessive light entering the camera of the mobile terminal to cause overexposure can be avoided.

As a further alternative of the cuvette of the present invention, the box body is provided with a fixing bracket, and when the box body is fixed by the fixing bracket, the photographing tube is tilted upward.

A second aspect of the present invention provides a water quality analyzer, including the above-mentioned cuvette and cuvette, wherein the cuvette is fixed to the case through the position-limiting member.

The invention has the following advantages:

The invention takes a picture of the liquid in the colorimetric tube under the illumination of the internal light source, discharges the interference of external light and ensures the stability of the shooting result, and meanwhile, the internal light source irradiates the tube wall of the colorimetric tube in an inclined way, so that the light irradiating the colorimetric tube is relatively uniform, and the accuracy of the shooting result is ensured.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram illustrating an internal structure of a colorimetric device used in combination with a colorimetric cylinder according to an embodiment of the present invention;

Fig. 2 is a schematic view showing an overall structure of a water quality analyzing apparatus according to an embodiment of the present invention.

Description of the main element symbols: 100-a cartridge; 110-a chamber; 120-a light source; 130-front wall aperture; 140-a stop member; 141-top wall holes; 142-a card slot; 150-pipe sleeve; 151-through holes; 160-a shooting tube; 161-notch; 170-fixing the bracket; 180-a fixed seat; 181-fixing plate; 182-a top plate; 200-colorimetric cylinder.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a colorimetric device, which is used in combination with a colorimetric tube 200 and a related mobile terminal, and can detect a certain parameter in a water sample, where the mobile terminal can be a mobile phone or a tablet computer. The colorimetric device, the colorimetric tube and the mobile terminal are independent devices.

The cuvette includes a case 100, and the case 100 may have various shapes, such as a rectangle, a square, a trapezoid, etc., and in this embodiment, the case 100 has a rectangular block shape. The cartridge 100 has a cavity 110 therein, and the shape of the cavity 110 is identical to and corresponds to the shape of the cartridge 100.

The cartridge 100 has a stopper 140 therein for limiting the cuvette 200. In the present embodiment, the position limiting component 140 includes a top wall hole 141 and a locking groove 142. The top wall hole 141 is located at the top of the box 100, and the size and shape of the top wall hole 141 are matched with the shape and size of the cuvette 200, specifically, when the cuvette 200 is inserted through the top wall hole 141, the external light is prevented from entering the cavity 110 as much as possible.

The engaging groove 142 is a groove adapted to the bottom of the cuvette 200, in this embodiment, a cylindrical column is protruded from the bottom wall of the cavity 110, and a circular engaging groove 142 is formed inside the column. The engaging groove 142 may have other structures as long as it can limit the bottom of the cuvette 200 to be stably positioned in the receiving chamber 110, and the present invention is within the scope of the present invention.

In the present embodiment, the notch 142 is vertically offset from the top wall hole 141, and thus, when the cuvette 200 passes through the top wall hole 141 and the bottom of the cuvette 200 abuts on the notch 142, the cuvette 200 is obliquely fixed inside the case 100.

Correspondingly, in order to make the top wall hole 141 more fit to the cuvette 200 and prevent external light from entering the cavity 110, the hole wall of the top wall hole 141 is inclined, and the inclination direction of the hole wall is the same as the inclination direction of the cuvette 200 when being fixed in the case 100.

The cavity 110 has a light source 120 therein, in this embodiment, the light source 120 is fixed at the bottom of the box 100, specifically, a fixing seat 180 is disposed at the bottom of the box 100, the light source 120 is installed on the top surface of the fixing seat 180, and the fixing seat 180 is located at one side of the card slot 142.

The top surface of the fixing seat 180 may be inclined or horizontal.

in this embodiment, the top surface of the fixing base 180 is inclined, and the inclined direction is the same as the inclined direction when the cuvette is fixed in the box body. Specifically, the fixing base 180 includes a fixing plate 181 and a top plate 182, the number of the fixing plates 181 is 2 and the fixing plates are arranged oppositely, the bottom surface of the fixing plate 181 is fixedly connected to the box body 100, the top surface of the fixing plate 181 is provided with a downward recess, the recess is located on the opposite side of the two fixing plates 181, the bottom surface of the recess is arranged obliquely, the top plate 182 is arranged between the two fixing plates 181 and abuts against the bottom surface of the recess, and the light source 120 is fixed on the top plate 182. At this time, the light source 120 is obliquely irradiated in the case 100, the oblique direction of the irradiation light coincides with the oblique direction when the cuvette 200 is fixed in the case 100, and the light source 120 is obliquely irradiated on the wall of the cuvette 200.

It should be noted that, in the present invention, the irradiation direction of the light source 120 is the irradiation direction in which the illumination intensity of the light source 120 is higher, and the oblique irradiation of the light source 120 on the tube wall of the cuvette 200 means that the main irradiation direction of the light source 120 is not perpendicular to the tube wall of the cuvette 200, it can be understood that the light with high illumination intensity of the light source 120 is irradiated on the distal end of the cuvette 200, and the light with lower illumination intensity of the light source 120 is irradiated on the proximal end of the cuvette 200, so that the cuvette 200 is uniformly irradiated, and the color development in the cuvette 200 is ensured to be uniform.

In the present embodiment, the light source 120 irradiates in a direction perpendicular to the top surface of the fixing base 180. The fixing base 180 may have other structures as long as the fixing base is used to fix the position of the light source 120 and the light source 120 is disposed in an inclined manner to ensure that the colorimetric tube 200 is uniformly irradiated, which is within the scope of the present invention.

The light source 120 is preferably an led lamp (i.e., a light emitting diode), the led lamp can efficiently convert electric energy into light energy, and has the advantages of low price, convenient installation, simple light path, easy lighting, etc., and the led lamp may be in a straw hat type or a patch type.

The bottom of the fixing base 180 is provided with a battery compartment for filling batteries to provide power for the light source 120.

The box body 100 is further provided with a bin door for opening and closing the battery bin, and the bin door is located on the bottom wall of the box body 100.

The outer wall of the box 100 is provided with a control switch for the light source 120, and in this embodiment, the control switch is located on one side wall of the box 100.

The side wall of the box 100 has a front wall hole 130, and when the cuvette 200 is fixed to the box 100, the front wall hole 130 and the light source 120 are respectively located at two opposite sides of the cuvette 200, specifically, the front wall hole 130, the cuvette 200 and the light source 120 are located on the same plane, and the camera of the mobile terminal shoots the cuvette 200 through the front wall hole 130.

It should be noted that, after a lot of experiments, if the cuvette 200 is placed right above the light source 120, if there are insoluble substances in the cuvette 200, there will be uneven portions in the color displayed by the cuvette 200, so that a large error may occur between the comparison result photographed by the mobile terminal and the actual result.

If the cuvette 200 is placed behind the light source 120, the surface of the cuvette 200 close to the front wall hole 130 is reflected seriously, so that the real color of the cuvette cannot be displayed, and the error is larger.

If the cuvette 200 is vertically placed above the light source 120, that is, the light source 120 irradiates from the lower side to the upper side, the lower part of the cuvette 200 has higher brightness than the upper part, and the real color cannot be reflected. If the light source 120 is directly opposite to the color comparison tube 200, i.e. the illumination direction is perpendicular to the length direction of the color comparison tube 200, the brightness of the portion of the color comparison tube 200 directly opposite to the light source 120 is the highest, and gradually becomes darker along the two ends of the color comparison tube 200.

If the light source 120 is facing the front wall hole 130, that is, the light with high intensity of the light source 120 directly irradiates the front wall hole 130, the shot picture is over-exposed and cannot display its real color.

Only as shown above, in the present embodiment, the front wall hole 130 and the light source 120 are respectively located on two opposite sides of the cuvette 200, the light source 120 is obliquely irradiated on the wall of the cuvette 200, and the irradiation direction of the front wall hole 130 in the light source 120 is staggered from the light source 120, so that the light irradiated on the cuvette 200 is relatively uniform, and the accuracy of the photographing result is ensured.

The front wall hole 130 may be a square hole or a circular hole, and in this embodiment, the front wall hole 130 is a circular hole.

A pipe sleeve 150 is protruded from the outer side of the case 100 along the circumference of the front wall hole 130, and a photographing pipe 160 is connected to the pipe sleeve 150.

In the present embodiment, the length of the photographing tube 160 is 8cm to 15 cm.

Connect shooting tube 160 on box body 100, can avoid external light to get into the comparator inside from front wall hole 130 as far as possible to contrast colour comparison tube 200 colour and cause the interference, also make mobile terminal be in a more suitable shooting position simultaneously, guarantee to shoot the effect.

The photographing tube 160 is detachably connected to the tube housing 150. After the water sample to be tested is tested, the shooting tube 160 can be taken down, so that the colorimetric device can be conveniently carried.

Alternatively, the photographing tube 160 and the socket 150 may be fixed by a screw connection, the photographing tube 160 has an internal thread and the socket 150 has an external thread, or the photographing tube 160 has an external thread and the socket 150 has an internal thread.

The photographing tube 160 and the tube housing 150 can be fixed by clamping.

In this embodiment, the sleeve has a through hole 151 therein, and the photographing tube 160 is inserted into the through hole 151 and is connected and fixed to the socket 150.

The diameter of the through hole 151 gradually shrinks along the direction from the end face of the pipe sleeve 150 to the front wall hole 130, the end of the shooting pipe 160 matched with the pipe sleeve 150 is matched with the through hole 151, the shooting pipe 160 is inserted into the through hole 151 and is slightly pressed by force, and the shooting pipe 160 is in interference fit with the pipe sleeve 150.

Furthermore, the pipe sleeve 150 has a limiting step inside, and the end surface of the shooting pipe 160 can be abutted against the limiting step, so as to avoid the excessive force of the operator from damaging the pipe sleeve 150 and the shooting pipe 160.

A notch 161 is formed at an end of the photographing tube 160 away from the front wall hole 130, so that part of light in the cavity 110 can be transmitted through the notch 161, and overexposure caused by too much light entering the camera of the mobile terminal can be avoided.

Specifically, the notch 161 extends from the end of the shooting tube 160 far away from the end of the front wall hole 130 in the direction of the front wall hole 130, the length of the extension is 1cm-3cm, and the cross section of the notch 161 is a ring of 1/6-1/4.

The notch 161 is located on the side of the photographing tube 160 near the bottom of the case 100.

The box 100 is provided with a fixing bracket 170, and when the box 100 is fixed by the fixing bracket 170, the photographing tube 160 can be tilted upward.

In this embodiment, the fixed bolster 170 is two relative backup pads that set up, and two backup pads are parallel to each other, and the backup pad is fixed in on the box body 100 with shoot on the relative lateral wall of pipe 160, the backup pad is located the bottom of box body 100, and the side that the backup pad is close to the bottom of box body 100 is the holding surface of slope, and the holding surface is 45 degrees for the inclination of box body 100 side, and when box body 100 was fixed through the backup pad, it upwards to shoot the pipe 160 slope, and the operating personnel of being convenient for uses mobile terminal to shoot.

The embodiment of the invention further provides a water quality analysis device, which comprises the colorimetric device and the colorimetric tube 200, wherein the colorimetric tube 200 is fixed on the box body 100 through the limiting part 140.

In this embodiment, when a water sample needs to be detected, the water sample to be detected is poured into the colorimetric tube 200, a color-developing agent is added to the colorimetric tube 200, the colorimetric tube 200 is inserted into the box 100 through the top wall hole 141, the bottom of the colorimetric tube 200 abuts against the slot 142 under the guiding action of the top wall hole 141, so that the colorimetric tube 200 is obliquely arranged, the box 100 is placed on a stable working surface through the fixing bracket 170, the shooting tube 160 is obliquely upward, after the color development of the water sample is completed, the shooting port of the mobile phone is aligned with the front wall hole 130 in the shooting tube 160, the tube 200 in the box 100 is shot, the shot result is compared with the database in the mobile phone, the content of a certain parameter of the water sample to be detected is directly obtained in the mobile phone, and the parameter may be the content of colorimetric nitrogen, phosphorus, and the like.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.