CN219608903U - Portable biochemical oxygen demand rapid tester - Google Patents

Abstract

The utility model discloses a portable biochemical oxygen demand rapid measuring instrument which comprises a bearing box and a fixed cover connected to the top end of the tail of the bearing box through a hinge, wherein a measuring pool is processed at the top end of the head of the bearing box, a biosensor is arranged in the measuring pool, and a current display screen is fixedly connected to the outer wall of one end of the bearing box, which is close to the measuring pool. The measuring tank and the biosensor are arranged in the bearing box in the design of the utility model, so that the measuring tank and the biosensor are convenient to carry, the biochemical oxygen demand of a sample can be measured at any time, water with a common capacity is filled in the semicircular bearing cavity, the water can conveniently move in the semicircular bearing cavity, the horizontal adjusting block can rotate in the built-in cavity of the bearing box along with the gravity of the horizontal adjusting block and the gravity of the water in the semicircular bearing cavity, and the horizontal adjusting block is fixed through the rotary fixing screw rod, thereby ensuring the horizontal state of the horizontal adjusting block, and improving the accuracy of reagent taking after a worker is convenient to find a horizontal plane.

Description

Portable biochemical oxygen demand rapid tester

Technical Field

The utility model relates to the technical field of biochemical oxygen demand measurement, in particular to a portable biochemical oxygen demand rapid measuring instrument.

Background

The biochemical oxygen demand is also called as biochemical oxygen consumption, which is the amount of dissolved oxygen required in the oxidation process of organic matters in water by aerobic microorganisms in water body under a certain temperature to be decomposed into inorganic matters, and is a comprehensive index for representing the content of the aerobic pollutants such as the organic matters in water, currently, a bioelectrode method is generally adopted for rapid measurement of the biochemical oxygen demand in the prior art, and the bioelectrode method is adopted for measurement of the biochemical oxygen demand in two ways, one way is a flow type, a water sample or a cleaning liquid is continuously fed into a measuring box according to a certain amount ratio in unit time under the action of a peristaltic pump; the other is the adding type, the buffer solution is added into a measuring pool, so that a microbial sensor, namely a microbial film, is kept in contact with the buffer solution, then a quantitative water sample to be measured is added, and the biochemical oxygen demand value of the water sample to be measured is measured; the bioelectrode method has the defects of more chemical products required for measuring the biochemical oxygen demand and inconvenient carrying.

Through retrieval, the patent with the Chinese patent application number of CN201520224646.8 discloses a portable biochemical oxygen demand rapid tester for AC/DC dual-purpose; the automatic liquid flow path sampling device comprises a miniature peristaltic pump and a liquid tank, wherein one end of the peristaltic pump is connected with the measuring tank pipeline, and the other end of the peristaltic pump is connected with the corresponding liquid tank; one end of the singlechip is connected with the peristaltic pump, and the biochemical oxygen demand of the solution to be measured is measured through the induction signal of the biosensor.

The portable biochemical oxygen demand rapid tester in the patent needs to quantitatively input the cleaning liquid when being used in the field, and when the measuring cylinder is used for taking the cleaning liquid on uneven ground in the field, the operator can easily observe errors, the input metering of the cleaning liquid has deviation, and the measuring result is influenced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a portable biochemical oxygen demand rapid detector.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a portable biochemical oxygen demand rapid determination appearance, includes bears the case to and through hinged joint at the fixed lid that bears case afterbody top, it has the measuring cell to bear case head portion top processing, the inside biosensor that is provided with of measuring cell, it is close to the one end outer wall fixedly connected with electric current display screen of measuring cell to bear the case, electric current display screen and biosensor electric connection, it has built-in chamber to bear the inside processing of case, it is connected with rotatory even axle to bear the built-in chamber one end inner wall rotation of case, rotatory even axle one side outer wall fixedly connected with horizontal adjustment piece, bear the built-in chamber other end inner wall of case through screw drive connection has fixed threaded rod, horizontal adjustment piece one side outer wall processing has the spacing groove, fixed threaded rod sliding connection all around is in the spacing groove inner wall.

Preferably: the outer wall of the bottom end of the horizontal adjusting block is fixedly connected with a semicircular bearing cavity.

Preferably: an electronic balance is embedded in the top end of the horizontal adjusting block, and a measuring cylinder accommodating groove is formed in the top end of the horizontal adjusting block.

Preferred as the present utility model: the bottom end of the tail part of the fixing cover is provided with evenly distributed circular grooves, and the circular grooves are mutually matched with the reagent placing holes.

As a preferred embodiment of the present utility model: the inner wall of the bottom of the fixed cover is provided with a square groove, and a uniformly distributed limit belt is fixedly connected inside the square groove of the fixed cover.

The utility model has the beneficial effects that:

measuring cell, biosensor settle and conveniently carry in bearing the weight of incasement portion, can measure the biochemical oxygen demand of sample at any time, the semicircle bears the weight of the intracavity portion and is equipped with its general water of capacity, make things convenient for water to bear the weight of intracavity portion removal at the semicircle, the level regulating block can rotate along with the gravity of level regulating block itself and the gravity of semicircle to bear the weight of intracavity water in bearing the weight of case to and fix the level regulating block through rotatory fixed screw thread pole, thereby guarantee the horizontality of level regulating block, after the convenience staff is looked for the horizontal plane, improve the accuracy to reagent quantity.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a portable rapid biochemical oxygen demand meter according to the present utility model;

FIG. 2 is a schematic diagram of the box shape of a carrying case of a portable rapid biochemical oxygen demand meter according to the present utility model;

FIG. 3 is a schematic diagram of a horizontal adjustment block of a portable biochemical oxygen demand rapid analyzer according to the present utility model;

FIG. 4 is a schematic view of the bottom morphology of a horizontal adjusting block of a portable biochemical oxygen demand rapid analyzer according to the present utility model;

FIG. 5 is a schematic view showing the form of a fixed cover of a portable rapid biochemical oxygen demand meter according to the present utility model.

In the figure: the device comprises a 1-bearing box, a 2-fixed cover, a 3-horizontal regulating block, a 4-fixed threaded rod, a 5-current display screen, a 6-reagent mounting hole, a 7-measuring cell, an 8-biosensor, a 9-electronic balance, a 10-measuring cylinder mounting groove, a 11-rotary connecting shaft, a 12-semicircular bearing cavity, a 13-limit groove, a 14-circular groove and a 15-limit belt.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the patent and simplifying the description, and do not limit the device, structure, or element to which it refers to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Embodiment one:

1-4, including bearing box 1 and fixed cover 2 through hinged joint on bearing box 1 afterbody top, bearing box 1 internal processing has built-in chamber, bearing box 1 built-in chamber one end inner wall rotates and is connected with rotatory connecting axle 11, rotatory connecting axle 11 one side outer wall fixedly connected with horizontal regulating block 3, bearing box 1 built-in chamber other end inner wall is connected with fixed threaded rod 4 through the screw drive, horizontal regulating block 3 one side outer wall processing has spacing groove 13, fixed threaded rod 4 sliding connection all around is in spacing groove 13 inner wall, horizontal regulating block 3 bottom outer wall fixedly connected with semicircle bears chamber 12, bearing box 1 head top processing has measuring cell 7, measuring cell 7 inside is provided with biosensor 8, bearing box 1 is close to measuring cell 7's one end outer wall fixedly connected with current display screen 5, current display screen 5 and biosensor 8 electric connection;

the measuring tank 7 and the biosensor 8 are arranged in the bearing box 1 to be conveniently carried, the biochemical oxygen demand of a sample can be measured at any time, water with general capacity is filled in the semicircular bearing cavity 12 to be conveniently moved in the semicircular bearing cavity 12, the horizontal adjusting block 3 can rotate along with the gravity of the horizontal adjusting block 3 and the gravity of the water in the semicircular bearing cavity 12 in the built-in cavity of the bearing box 1, and the horizontal adjusting block 3 is fixed through the rotary fixed threaded rod 4, so that the horizontal state of the horizontal adjusting block 3 is ensured, the accuracy of reagent taking is improved after a worker finds a horizontal plane, the current display screen 5 can record the difference value of constant current, and the worker is assisted to calculate the biochemical oxygen demand of the converted sample.

As shown in fig. 2, 3 and 5, an electronic balance 9 is embedded in the top end of the horizontal adjusting block 3, a measuring cylinder accommodating groove 10 is processed in the top end of the horizontal adjusting block 3, uniformly distributed reagent accommodating holes 6 are processed in the top end of the tail of the carrying case 1, uniformly distributed circular grooves 14 are processed in the bottom end of the tail of the fixed cover 2, the circular grooves 14 are mutually matched with the reagent accommodating holes 6, square grooves are processed in the inner wall of the bottom of the fixed cover 2, and uniformly distributed limiting belts 15 are fixedly connected in the square grooves of the fixed cover 2;

the reagent placement holes 6 and the circular grooves 14 are matched with each other to be used for containing bottles of various chemical reagents, the circular grooves 14 in the square grooves of the fixed cover 2 are used for placing chemical instruments, such as test tubes, measuring cylinders, rubber head droppers and the like, the electronic balance 9 is used for accurately measuring the solid chemical reagents, the measuring cylinder placement grooves 10 are used for placing measuring cylinders, and workers can conveniently and accurately measure the chemical reagents.

When the embodiment is used, preparation work is carried out, a proper amount of distilled water, hydrochloric acid, sodium hydroxide, sodium sulfite, glucose-glutamic acid standard solution and phosphate buffer solution are taken into a reagent bottle, the reagent bottle is labeled and then is placed into a reagent placement hole 6, a proper amount of measuring cylinder, a rubber head dropper and a test tube are placed into a limit belt 15, before two days of biochemical oxygen demand measurement, phosphate buffer use solution is prepared by the aid of an electronic balance 9 and a measuring cylinder placement groove 10 on a horizontal regulating block 3 through the hydrochloric acid, sodium hydroxide and sodium sulfite, and a microbial film is soaked for more than two days, and then is installed on a biosensor 8;

during measurement, the carrying case 1 is placed on the ground, the fixed threaded rod 4 is rotated to cancel the fixation of the fixed threaded rod 4 to the horizontal adjusting block 3, then the horizontal adjusting block 3 rotates under the gravity of the self and the gravity of water in the semicircular carrying cavity 12 until the horizontal adjusting block 3 is horizontally fixed, the horizontal adjusting block 3 in a horizontal state is fixed by rotating the fixed threaded rod 4, then a certain amount of phosphate buffer solution is poured into the measuring pond 7, so that the biosensor 8 and the microbial film keep in contact with the buffer solution, then a certain amount of measured water sample is added, and finally the biochemical oxygen demand value of the measured water sample is measured through the constant current difference displayed by the current display screen 5;

the glucose-glutamic acid standard solution was used to check the accuracy of the experiment.

While the utility model has been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The portable biochemical oxygen demand rapid measuring instrument comprises a bearing box (1) and a fixed cover (2) connected to the top end of the tail of the bearing box (1) through a hinge, and is characterized in that a measuring tank (7) is processed at the top end of the head of the bearing box (1), a biosensor (8) is arranged in the measuring tank (7), a current display screen (5) is fixedly connected to the outer wall of one end, close to the measuring tank (7), of the bearing box (1), and the current display screen (5) is electrically connected with the biosensor (8);

the novel bearing box is characterized in that a built-in cavity is formed in the bearing box (1), a rotary connecting shaft (11) is rotatably connected to the inner wall of one end of the built-in cavity of the bearing box (1), a horizontal adjusting block (3) is fixedly connected to the outer wall of one side of the rotary connecting shaft (11), a fixed threaded rod (4) is connected to the inner wall of the other end of the built-in cavity of the bearing box (1) through a thread transmission, a limiting groove (13) is formed in the outer wall of one side of the horizontal adjusting block (3), and the fixed threaded rod (4) is connected to the inner wall of the limiting groove (13) in a sliding mode.

2. The portable biochemical oxygen demand rapid measuring instrument according to claim 1, wherein the outer wall of the bottom end of the horizontal adjusting block (3) is fixedly connected with a semicircular bearing cavity (12).

3. The portable biochemical oxygen demand rapid measuring instrument according to claim 2, wherein an electronic balance (9) is embedded at the top end of the horizontal adjusting block (3), and a measuring cylinder accommodating groove (10) is formed in the top end of the horizontal adjusting block (3).

4. The portable biochemical oxygen demand rapid measuring instrument according to claim 1, wherein the top end of the tail of the carrying case (1) is provided with evenly distributed reagent placement holes (6), the bottom end of the tail of the fixed cover (2) is provided with evenly distributed circular grooves (14), and the circular grooves (14) are mutually matched with the reagent placement holes (6).

5. The portable biochemical oxygen demand rapid measuring instrument according to claim 4, wherein square grooves are formed in the inner wall of the bottom of the fixed cover (2), and uniformly distributed limiting belts (15) are fixedly connected inside the square grooves of the fixed cover (2).