CN110873782B - Reagent dropwise add device that mixing of colors experiments was used in food detection - Google Patents
Reagent dropwise add device that mixing of colors experiments was used in food detection Download PDFInfo
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- CN110873782B CN110873782B CN201911186835.XA CN201911186835A CN110873782B CN 110873782 B CN110873782 B CN 110873782B CN 201911186835 A CN201911186835 A CN 201911186835A CN 110873782 B CN110873782 B CN 110873782B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/18—Burettes specially adapted for titration
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Abstract
The invention discloses a reagent dripping device for a color mixing experiment in food detection, which comprises: buret, titration head and regulation rack, the buret has open-ended cylindric structure for the top, the outside bottom of buret still is connected with the stop collar, titration head screwed connection is in the bottom of buret, and titrates the inside intercommunication of head and buret. According to the invention, the quantitative titration sphere is arranged in the spherical cavity at the inner side of the titration head, when a reagent is dripped, the quantitative titration sphere is driven to rotate by the action of the adjusting rack matched with the adjusting convex teeth on the quantitative titration sphere on the adjusting tooth groove in the annular groove, and the reagent is contained in the first quantitative titration groove and the second top titration groove in the quantitative titration sphere and rotates to be dripped through the titration nozzle.
Description
Technical Field
The invention relates to the technical field of industrial cutting, in particular to a reagent dripping device for a color mixing experiment in food detection.
Background
The food safety detection is used for detecting harmful substances in food according to national indexes, and mainly used for detecting harmful and toxic indexes, such as heavy metal, aflatoxin and the like. An important aspect of food science and engineering is the introduction and use of chemical unit operations and the development of food engineering unit operations, thereby promoting the development of the food industry towards large-scale, continuous and automated.
Reagent dropwise add device that mixing of colors experiment was used in food detection is exactly a food detection experiment is with dropwise add device of reagent, current reagent dropwise add device structure is comparatively simple, mostly carry out the push type dropwise add through piston rod cooperation dropwise add pipe, thereby tightly realize the volume of control dropwise add reagent through the manual control piston rod when carrying out the dropwise add, can't realize accurate quantitative dropwise add, influence the accuracy that detects, and tightly realize the function to the reagent dropwise add, need carry out the unable satisfying need of thermal treatment when the dropwise add to some special reagent, the practicality is relatively poor.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a reagent dripping device for a color matching experiment in food detection.
In order to achieve the purpose, the invention adopts the following technical scheme: a reagent dropwise add device for mixing of colors experiments in food detection includes: the titration tube, the titration head and the adjusting rack;
the top of the burette is of a cylindrical structure with an opening, and the bottom end of the outer side of the burette is also connected with a limiting sleeve;
the titration head is spirally connected to the bottom end of the titration tube, the titration head is communicated with the interior of the titration tube, a spherical cavity is arranged on the inner side of the titration head, a quantitative titration sphere is rotatably connected in the spherical cavity through a rotating connecting shaft, an annular groove is formed in the quantitative titration sphere, and an adjusting tooth socket is formed in the annular groove at a medium angle;
adjusting rack slip through connection in the stop collar, and adjusting rack still through connection in titrating the head, adjusting rack's outside equidistance is equipped with the regulation dogtooth, and wherein, the regulation tooth's socket meshing in regulation dogtooth and the ring channel is connected.
As a further description of the above technical solution:
the bottom of titrating the head still is connected with titrates the mouth, titrate the mouth and be conical structure, and titrate the inboard intercommunication of mouth and titrating the head.
As a further description of the above technical solution:
first quantitative titration groove and second quantitative titration groove have been seted up to the symmetry on the ration titration spheroid, and the position of first quantitative titration groove and second quantitative titration groove and the junction position department of titrating head and buret and titrate the head and titrate the mouth with the junction position mutual correspondence, the volume of first quantitative titration groove and second quantitative titration groove equals.
As a further description of the above technical solution:
the top of adjusting rack still is connected with the regulation handle, and just one side of adjusting handle is connected with annular cover frame, annular cover frame slides and cup joints on the buret.
As a further description of the above technical solution:
the top opening position of the buret is spirally connected with a fixed end cover, and the fixed end cover is connected with an inlet pipe and an outlet pipe.
As a further description of the above technical solution:
the bottom of fixed end cover is connected with spiral heat exchange coil, and spiral heat exchange coil imbeds in the buret, spiral heat exchange coil's entrance point and import pipe intercommunication, and spiral heat exchange coil's exit end passes through export connecting pipe and outlet pipe intercommunication.
As a further description of the above technical solution:
the surface spraying of buret has the liquid measure scale, the bottom of buret is equipped with the cooperation and titrates the head and connect the screwed joint who uses.
Advantageous effects
The invention provides a reagent dripping device for a color mixing experiment in food detection. The method has the following beneficial effects:
(1): this reagent dropwise add device for mixing of colors experiment in food detection is through being equipped with the titration spheroid in the ball-type cavity of titrating the head inboard, when dropping reagent, can act on the regulation tooth's socket in the annular groove on the titration spheroid through the regulation rack cooperation and drive the titration spheroid of ration through the regulation dogtooth that the regulation rack cooperation was ridden and rotate, reagent is being rotated and is being titrated the mouth and carry out the dropwise add through the first quantitative titration groove in the titration spheroid and second top titration groove, compare in the tradition carry out the manual control dropwise add by the piston rod, realize the quantity of dropwise add reagent at every turn of accurate control, improve the dropwise add precision.
(2): this reagent dropwise add device for mixing of colors experiment in food detects sets up spiral heat exchange coil through the fixed end cover of inboard cooperation at the buret, carry out the dropwise add experiment and preheat or during the heat treatment for needing to heat some specific reagent, can be the inboard circulation of spiral heat exchange coil and pour into hot water into through import pipe and outlet pipe, then heat or preheat the inboard reagent of buret through spiral heat exchange coil, make reagent dropwise add device for mixing of colors experiment still have and carry out the heat treatment measure to the reagent of dropwise add during this food detects, convenience more when using.
Drawings
FIG. 1 is a schematic view of the overall structure of a reagent dripping device for a color mixing experiment in food detection according to the present invention;
FIG. 2 is a schematic diagram of the structure of a quantitative titration sphere according to the present invention;
FIG. 3 is a schematic view of the adjusting rack of the present invention;
fig. 4 is a schematic view of a connection structure of the spiral heat exchange coil according to the present invention.
Illustration of the drawings:
1. a burette; 2. a liquid amount scale; 3. a titration head; 4. a spherical cavity; 5. quantitatively titrating the spheres; 6. rotating the connecting shaft; 7. a titration nozzle; 8. a limiting sleeve; 9. adjusting the rack; 10. a first titration tank; 11. a second titration tank; 12. an annular groove; 13. adjusting the tooth socket; 14. adjusting the convex teeth; 15. adjusting the handle; 16. an annular sleeve frame; 17. fixing the end cover; 18. a spiral heat exchange coil; 19. an inlet pipe; 20. an outlet connecting pipe; 21. an outlet pipe; 22. screw connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-4, a reagent dripping device for color matching experiments in food detection comprises: a burette 1, a titration head 3 and an adjusting rack 9;
the top of the burette 1 is of a cylindrical structure with an opening, and the bottom end of the outer side of the burette 1 is also connected with a limit sleeve 8;
the titration head 3 is spirally connected to the bottom end of the titration tube 1, the titration head 3 is communicated with the interior of the titration tube 1, a spherical cavity 4 is arranged on the inner side of the titration head 3, a quantitative titration sphere 5 is rotatably connected in the spherical cavity 4 through a rotating connecting shaft 6, an annular groove 12 is formed in the quantitative titration sphere 5, and an adjusting tooth socket 13 is formed in the annular groove 12 at a medium angle;
the adjusting rack 9 is connected in the limiting sleeve 8 in a sliding and penetrating manner, the adjusting rack 9 is further connected in the titration head 3 in a penetrating manner, adjusting convex teeth 14 are arranged on the outer side of the adjusting rack 9 at equal intervals, and the adjusting convex teeth 14 are meshed and connected with adjusting tooth grooves 13 in the annular groove 12.
The bottom of titration head 3 is still connected with titration mouth 7, and titration mouth 7 is conical structure, and titration mouth 7 communicates with the inboard of titration head 3.
First quantitative titration groove 10 and second quantitative titration groove 11 have been seted up to the symmetry on the ration titration spheroid 5, and the position of first quantitative titration groove 10 and second quantitative titration groove 11 with titrate the head 3 and the connecting position department of buret 1 and titrate the head 3 and titrate the mouth 7 and mutually correspond, the volume of first quantitative titration groove 10 and second quantitative titration groove 11 equals.
The working principle is as follows: when the reagent dripping device for the color matching experiment in food detection is used, a worker firstly injects a reagent to be dripped into the burette 1, then when the reagent is dripped, a worker can push the adjusting rack 9 up and down, the adjusting convex teeth 14 on the adjusting rack 9 are matched with the adjusting tooth grooves 13 in the annular groove 12 on the quantitative titration sphere 5 to drive the quantitative titration sphere 5 to rotate, the initial position is that the first quantitative titration groove 10 on the quantitative titration sphere 5 is filled with the reagent, the quantitative titration sphere 5 is driven to rotate by the adjusting rack 9, so that the first quantitative titration groove 10 in the quantitative titration sphere 5 is positioned at the bottom while the second quantitative titration groove 11 is positioned at the top, the reagent in the first quantitative titration groove 10 flows out through the titration mouth 7 to realize reagent dripping, the second quantitative titration groove 11 is filled with the reagent, and continuous quantitative reagent dripping is realized through reciprocating circulation.
The top end of the adjusting rack 9 is also connected with an adjusting handle 15, one side of the adjusting handle 15 is connected with an annular sleeve frame 16, and the annular sleeve frame 16 is sleeved on the burette 1 in a sliding manner.
The annular sleeve frame 16 is sleeved on the burette 1 in a sliding mode, so that the annular sleeve frame 16 can slide and limit when the adjusting rack 9 is adjusted in a reciprocating lifting mode, the adjusting rack 9 is prevented from deforming and cannot be adjusted normally, and the dripping operation is smooth and stable.
A fixed end cover 17 is screwed to the top opening of the burette 1, and an inlet pipe 19 and an outlet pipe 21 are connected to the fixed end cover 17.
The bottom of the fixed end cover 17 is connected with a spiral heat exchange coil 18, the spiral heat exchange coil 18 is embedded in the burette 1, the inlet end of the spiral heat exchange coil 18 is communicated with an inlet pipe 19, and the outlet end of the spiral heat exchange coil 18 is communicated with an outlet pipe 21 through an outlet connecting pipe 20.
Need heat at some special reagents of dropwise add, can be through import pipe 19 with for spiral heat exchange coil 18 injection hot water, then heat the reagent in buret 1 through spiral heat exchange coil 18, discharge through outlet pipe 21 after the hot water cooling of injecting into simultaneously, realize the circulation and carry out heat treatment to the reagent in the buret 1, make reagent dropwise add device for mixing of colors experiments in this food detects have and carry out heat treatment's measure to dropwise reagent, convenience more when using.
The surface of buret 1 is sprayed with liquid measure scale 2, and the bottom of buret 1 is equipped with the screwed joint 22 that cooperation titration head 3 connects and uses.
The liquid measure scale 2 can show the liquid measure in buret 1, and screwed connection head 22 makes can carry out the spiral between buret 1 and the titration head 3 and dismantles, is convenient for wash buret 1 and titration head 3.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a reagent dropwise add device that mixing of colors experiments was used in food detection which characterized in that includes: a burette (1), a titration head (3) and an adjusting rack (9);
the burette (1) is of a cylindrical structure with an opening at the top, and the bottom end of the outer side of the burette (1) is also connected with a limiting sleeve (8);
the titration head (3) is spirally connected to the bottom end of the titration tube (1), the titration head (3) is communicated with the interior of the titration tube (1), a spherical cavity (4) is arranged on the inner side of the titration head (3), a quantitative titration sphere (5) is rotatably connected in the spherical cavity (4) through a rotating connecting shaft (6), an annular groove (12) is formed in the quantitative titration sphere (5), and an adjusting tooth socket (13) is formed in the annular groove (12) at a medium angle;
a first quantitative titration groove (10) and a second quantitative titration groove (11) are symmetrically formed in the quantitative titration sphere (5), the positions of the first quantitative titration groove (10) and the second quantitative titration groove (11) correspond to the connection position of the titration head (3) and the titration tube (1) and the connection position of the titration head (3) and the titration nozzle (7), and the volumes of the first quantitative titration groove (10) and the second quantitative titration groove (11) are equal;
adjusting rack (9) slip through connection in stop collar (8), and adjusting rack (9) still through connection in titrating head (3), the outside equidistance of adjusting rack (9) is equipped with adjusts dogtooth (14), and wherein, adjusts dogtooth (14) and is connected with regulation tooth's socket (13) meshing in ring channel (12).
2. The reagent dripping device for the color matching experiment in food detection as claimed in claim 1, wherein the bottom end of the titration head (3) is further connected with a titration nozzle (7), the titration nozzle (7) is of a conical structure, and the titration nozzle (7) is communicated with the inner side of the titration head (3).
3. The reagent dripping device for the color matching experiment in food detection as claimed in claim 1, wherein the top end of the adjusting rack (9) is further connected with an adjusting handle (15), one side of the adjusting handle (15) is connected with an annular sleeve frame (16), and the annular sleeve frame (16) is slidably sleeved on the burette (1).
4. The reagent dripping device for the color matching experiment in the food detection as claimed in claim 1, wherein a fixed end cover (17) is spirally connected to the top opening position of the burette (1), and an inlet pipe (19) and an outlet pipe (21) are connected to the fixed end cover (17).
5. The reagent dripping device for the color mixing experiment in food detection as claimed in claim 4, wherein the bottom of the fixed end cap (17) is connected with a spiral heat exchange coil (18), the spiral heat exchange coil (18) is embedded in the burette (1), the inlet end of the spiral heat exchange coil (18) is communicated with the inlet pipe (19), and the outlet end of the spiral heat exchange coil (18) is communicated with the outlet pipe (21) through the outlet connecting pipe (20).
6. The reagent dripping device for the color mixing experiment in food detection as claimed in claim 1, wherein a liquid scale (2) is sprayed on the surface of the burette (1), and a screw connector (22) matched with the burette head (3) for connection is arranged at the bottom end of the burette (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186835.XA CN110873782B (en) | 2019-11-28 | 2019-11-28 | Reagent dropwise add device that mixing of colors experiments was used in food detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186835.XA CN110873782B (en) | 2019-11-28 | 2019-11-28 | Reagent dropwise add device that mixing of colors experiments was used in food detection |
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| CN110873782A CN110873782A (en) | 2020-03-10 |
| CN110873782B true CN110873782B (en) | 2022-06-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111249997B (en) * | 2020-03-31 | 2022-09-13 | 李翠芝 | High accuracy dropping funnel |
| CN111413459B (en) * | 2020-05-06 | 2022-03-22 | 中农康正技术服务有限公司 | Reagent dropwise add device that mixing of colors experiments was used in food detection |
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| WO2004033100A2 (en) * | 2002-10-09 | 2004-04-22 | Case Western Reserve University | Device for precise chemical delivery and solution preparation |
| CN103922261A (en) * | 2013-01-15 | 2014-07-16 | 北京金麦格生物技术有限公司 | Liquid transfer device, full-automatic workstation using the same and application thereof |
| CN104289260A (en) * | 2014-08-29 | 2015-01-21 | 浙江海洋学院 | Pipette matching device |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL220934B1 (en) * | 2009-08-28 | 2016-01-29 | PZ HTL Spółka Akcyjna | Mechanical pipette with adjustable value of the volume of drawn liquid |
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Patent Citations (6)
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|---|---|---|---|---|
| WO2004033100A2 (en) * | 2002-10-09 | 2004-04-22 | Case Western Reserve University | Device for precise chemical delivery and solution preparation |
| CN103922261A (en) * | 2013-01-15 | 2014-07-16 | 北京金麦格生物技术有限公司 | Liquid transfer device, full-automatic workstation using the same and application thereof |
| CN104289260A (en) * | 2014-08-29 | 2015-01-21 | 浙江海洋学院 | Pipette matching device |
| CN108114758A (en) * | 2017-12-13 | 2018-06-05 | 百奥森（江苏）食品安全科技有限公司 | A kind of micropipette device for food inspection |
| CN208140653U (en) * | 2018-04-10 | 2018-11-23 | 烟台市食品药品检验检测中心 | A kind of accurate constant burette of drug inspection center |
| CN209254792U (en) * | 2018-12-05 | 2019-08-16 | 黄响 | A kind of chemical analysis aspirator |
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