CN111272744A

CN111272744A - Detection apparatus for antibiotic in detection cow's milk

Info

Publication number: CN111272744A
Application number: CN202010071433.1A
Authority: CN
Inventors: 熊志勇; 魏永春; 张文霞; 黄品瑜; 林宝茹
Original assignee: Beijing Institute of Technology Zhuhai
Current assignee: Beijing Institute of Technology Zhuhai
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-06-12
Anticipated expiration: 2040-01-21
Also published as: CN111272744B

Abstract

The invention provides a detection device for detecting antibiotics in cow milk, which comprises a detection tube, a detection tube and a detection device, wherein a fermentation cavity is arranged in the detection tube; the detection window is arranged on the side wall of the detection pipe and communicated with the fermentation cavity; the plugging piece is movably arranged on the detection tube and opens/closes the detection window; the blocking piece is internally provided with a containing cavity for containing a TTC reagent, or the detection device further comprises TTC test paper, the TTC test paper covers the detection window, the blocking piece closes the detection window, and the TTC test paper is fixed on the detection window. According to the antibiotic detection device, the structure is small, the use is convenient, the detection window is formed in the side wall of the detection tube, the detection process is facilitated, the blocking piece is arranged, the antibiotic detection device can be used for loading TTC reagents or fixing TTC test paper, the operation is convenient, the working efficiency is improved, and the arrangement of the blocking piece enables the inner cavity of the detection tube to be isolated from the outside, so that the detection accuracy is ensured.

Description

Detection apparatus for antibiotic in detection cow's milk

Technical Field

The invention relates to an antibiotic detection device, in particular to a detection device for detecting antibiotics in cow milk.

Background

Cow milk is a healthy drink which has rich nutritive value, is suitable for wide crowds and has certain health care function. At present, cow milk produced in China mainly has the problems of veterinary drug residue, adulteration and the like. The veterinary drug residues in cow milk mainly comprise antibiotics, sulfonamides, growth promoter drugs and the like, the antibiotics are widely applied to prevention and treatment of various infectious diseases in the growth and development process of cow, and the drug residues in cow milk are easily caused by illegal use and abuse of the antibiotics. The potential harm of antibiotics remained in the cow milk to the drinker comprises the generation of anaphylactic reaction, the induction of bacterial drug resistance, the resulting imbalance of flora in intestinal tracts of human bodies and the like, and the adverse effect on the subsequent processing of fresh milk.

At present, the detection technology for antibiotic residues in China mainly comprises a microbial resistance detection method, a physicochemical detection method, an immunological analysis method and the like, but the existing method is relatively long in time consumption, complex in operation, high in experimental condition requirement and low in applicability, and the required detection device is simple in structure, few in function and needs a plurality of test tubes and the like to be matched for use.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

In order to solve the above problems, the present invention provides a detection device for detecting antibiotics in cow's milk, specifically, the following technical solutions are adopted:

a detection device for detecting antibiotics in cow's milk comprises:

a fermentation cavity is arranged in the detection pipe;

the detection window is arranged on the side wall of the detection pipe and communicated with the fermentation cavity;

the plugging piece is movably arranged on the detection tube and opens/closes the detection window;

the blocking piece is internally provided with a containing cavity for containing a TTC reagent, or the detection device further comprises TTC test paper, the TTC test paper covers the detection window, the blocking piece closes the detection window, and the TTC test paper is fixed on the detection window.

Preferably, the blocking piece comprises an arc-shaped wall made of a transparent material, the arc-shaped wall is rotatably arranged on the detection tube and is attached to the outer wall of the detection tube, the TTC test paper covers the detection window, the arc-shaped wall rotates to the detection window, and the TTC test paper is clamped between the detection window and the arc-shaped wall.

Preferably, the detection tube is provided with a top opening, a cover body is rotatably arranged on the top opening, the cover body comprises a bottom wall and a circumferential wall, the circumferential wall is rotatably sleeved on the top opening, the top end of the arc-shaped wall is fixedly connected to the circumferential wall, and the cover body rotates to drive the arc-shaped wall to rotate around the outer wall of the detection tube to open/close the detection window;

the outer wall of the detection tube is located a fixing strip is arranged on one side edge of the detection window, a fixing groove is correspondingly formed in the inner wall of the arc-shaped wall, the arc-shaped wall rotates to cover the detection window, and the convex ribs are clamped into the fixing groove to fix the arc-shaped wall.

Preferably, the bottom of the detection tube is provided with an accommodating box, a winding drum is arranged in the accommodating box, a coiled TTC test paper is wound on the winding drum, the arc-shaped wall comprises a first arc-shaped wall extending from the cover body to the bottom end of the detection tube, one side of the first arc-shaped wall corresponding to the detection window is provided with a second arc-shaped wall extending along the circumferential direction of the detection tube, the free end of the coiled TTC test paper on the winding drum in the accommodating box extends out of the accommodating box and extends along the outer wall of the detection tube to one side of the cover body to cover the detection window, and the cover body rotates until the second arc-shaped wall covers the detection window to fix the TTC test paper.

Preferably, the detection window is a circular opening, the plugging piece comprises a circular door body which is rotatably connected to the detection tube, the circular door body rotates to open/close the detection window, the circular door body is provided with a door frame, a through opening is formed in the middle of the door frame, a transparent window is installed on the through opening, the transparent window comprises a convex basin which protrudes into the fermentation cavity, the edge of the opening of the convex basin is turned outwards to form a turned edge, the convex basin penetrates through the through opening, and the turned edge on the edge of the convex basin is attached and fixed on the door frame;

the bottom wall of the convex basin is a straight wall, an installation part is arranged on the outer wall surface of the straight wall, the TTC test paper is fixedly inserted in the installation part, the round door body is closed, and the TTC test paper extends into the fermentation cavity along with the convex basin; or a box body for containing the TTC reagent is detachably mounted in the convex basin, and a communicating structure for communicating the inner cavity of the box body with the fermentation cavity is arranged on the convex basin.

Preferably, the mounting portion comprises a left longitudinal convex strip and a right longitudinal convex strip which are arranged on the outer surface of the bottom wall of the convex basin, the bottoms of the left longitudinal convex strip and the right longitudinal convex strip are provided with lower lateral convex strips, the left longitudinal convex strip and the right longitudinal convex strip are respectively provided with a limiting flange which is bent towards the opposite side, the lower lateral convex strips are provided with limiting flanges which are bent upwards, the TTC test paper is inserted between the convex strips, and the limiting flanges of the convex strips limit the TTC test paper to be tightly attached to the outer surface of the bottom wall of the convex basin;

or, the diapire of protruding basin is straight wall, be provided with on the top wall of protruding basin perisporium to the drainage face that straight wall extends, be equipped with the inlet on the drainage face, the box body is including the liquid outlet, the box body is installed in the protruding basin, the liquid outlet on the box body with the inlet is linked together, and the box body is kept away from the one side of protruding basin inner wall is elastic wall, the extrusion the elastic wall pours into the TTC reagent in the box body the drainage face.

Preferably, the detection device of antibiotic in cow's milk includes the radial drive arrangement with fermentation intracavity detector to the driving of test tube inner wall, radial drive arrangement includes the body of rod and rotatable setting is in the base of test tube bottom, the test tube bottom is provided with the through-hole, the body of rod runs through the through-hole sets up, and the body of rod is located a plurality of following vertical interval setting on the pole section of fermentation intracavity by the body of rod outer wall is to the arch of the inner wall extension of test tube, and each arch is the heliciform around the body of rod center and arranges, the body of rod stretches out the pole section fixed connection of test tube is in on the base, the base rotates the drive the body of rod rotates.

Preferably, a first clamping block and a second clamping block are arranged in the detection tube, the first clamping block and the second clamping block are movably arranged along the axial direction of the detection tube, the lower surface of the first clamping block is a first clamping portion with a downward convex middle part, the upper surface of the second clamping block is a second clamping portion with an upward convex middle part, an upper cover body is installed on an opening at the top of the detection tube, a first threaded hole is formed in the upper cover body, an upper threaded rod is connected onto the first clamping block, the upper threaded rod is connected onto the upper cover body in a threaded mode and stretches out of the upper cover body, a lower cover body is installed on an opening at the bottom of the detection tube, a second threaded hole is formed in the lower cover body, the second clamping block is connected with a lower threaded rod, and the lower threaded rod is connected with the lower cover body and stretches out of the lower cover.

Preferably, including heating sleeve, the outer wall of detecting tube is provided with along axially extended heat transfer sand grip, heating sleeve open-top is provided with to inside sunken vertical groove on the heating sleeve, and vertical groove is covered and is installed the net of ventilating, sets up the installing port on the sunken diapire in vertical groove, install the mount on the installing port, install semiconductor heating piece on the mount, semiconductor heating piece with heat transfer sand grip laminating on the detecting tube, and the heating end orientation of semiconductor heating piece the heat transfer sand grip, the cold junction orientation the net of ventilating, the sunken diapire in vertical groove is straight wall, the heating sleeve cover is in on the detecting tube, the laminating of the sunken diapire in vertical groove the heat transfer sand grip of detecting tube.

Preferably, the heating sleeve comprises a control circuit, the semiconductor heating sheet is connected with the control circuit, and the control circuit comprises resistors R1-R4, capacitors C1-C4, diodes D1-D2, NPN bipolar transistors Q1-Q2, PNP bipolar transistors Q3-Q4 and an amplifier F;

one end of the resistor R1 is connected with one end of the capacitor C1 and the collector of the NPN bipolar transistor Q1, the other end of the capacitor C1 is connected with the base of the NPN bipolar transistor Q1, the emitter of the NPN bipolar transistor Q1 is connected with one end of the resistor R2, and a voltage Vin is arranged between the other end of the resistor R2 and the other end of the resistor R1;

an emitter of the PNP bipolar transistor Q3 is connected with the other end of the resistor R1, a base of the PNP bipolar transistor Q3 is connected with a base of the PNP bipolar transistor Q4, a collector of the PNP bipolar transistor Q3 is connected with a collector of the NPN bipolar transistor Q2, a base of the NPN bipolar transistor Q2 is connected with a base of the NPN bipolar transistor Q1 and the other end of the capacitor C1, and an emitter of the NPN bipolar transistor Q2 is connected with the other end of the resistor R2;

an emitter of the PNP bipolar transistor Q4 is connected to an emitter of the PNP bipolar transistor Q3 and an anode of the diode D1, a collector of the PNP bipolar transistor Q4 is connected to one end of the resistor R3 and the capacitor C2, the other end of the capacitor C2 is connected to an emitter of the NPN bipolar transistor Q2 and one end of the capacitor C3, the other end of the resistor R3 is connected to the other end of the capacitor C3, a cathode of the diode D1 and an anode of the diode D2, a cathode of the diode D2 is connected to one end of the capacitor C3 and a forward input terminal of the amplifier F, and is connected to a reference ground GND, a negative input terminal of the amplifier F is connected to one end of a capacitor C4, the other end of the capacitor C4 is connected to an anode of a diode D1 and one end of a resistor R4, an output terminal of the amplifier F is connected to the other end of the resistor R4 and one end of the semiconductor heating plate, and the other end of the semiconductor heating plate is connected to one end of a resistor R4.

By adopting the technical scheme, the invention has the following beneficial technical effects:

1. according to the invention, the detection device has a small structure, is convenient to use, and the detection window is arranged on the side wall of the detection tube, so that the detection process is facilitated.

2. The blocking piece comprises an arc-shaped wall made of transparent materials, the arc-shaped wall is rotatably arranged on the detection tube and is attached to the outer wall of the detection tube, the TTC test paper covers the detection window, the arc-shaped wall rotates to the detection window, the TTC test paper is clamped between the detection window and the arc-shaped wall, the blocking piece is made of transparent materials, the TTC is located on the detection window and is directly contacted with a detection sample in the fermentation chamber, and the change of the TTC test paper can be directly observed through the blocking piece, so that whether the cow milk contains antibiotics or not is determined.

3. The invention comprises a radial driving device which can drive a sample in the fermentation chamber to move towards the inner wall of the fermentation chamber, so that the detection sample is fully contacted with TTC test paper, and the detection accuracy of antibiotics is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic structural diagram of an antibiotic detection apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic view of another structure of the antibiotic detection apparatus according to the first embodiment of the present invention; (ii) a

FIG. 3 is a schematic structural diagram of an antibiotic detection apparatus according to a second embodiment of the present invention; (ii) a

FIG. 4 is a schematic view of the configuration of the circular door body of FIG. 3;

FIG. 5 is a schematic structural diagram of a convex basin in the third embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a box body mounted on a convex basin in the third embodiment of the present invention;

FIG. 7 is another perspective view of FIG. 6;

FIG. 8 is a schematic view of the structure of the convex ribs on the bottom wall of the convex basin;

FIG. 9 is a schematic structural view of an antibiotic detection apparatus according to a fourth embodiment of the present invention;

FIG. 10 is a schematic view showing another construction of the antibiotic detection apparatus in the fourth embodiment of the present invention;

FIG. 11 is an exploded view of a heating sleeve according to a fifth embodiment of the present invention;

fig. 12 is a circuit diagram of a control circuit according to a fifth embodiment of the present invention.

Wherein, 1, detecting tube; 11. detecting a window; 12. a fixing strip; 13. heat transfer ribs; 3. a cover body; 31. an arcuate wall; 311. a first arcuate wall; 312. a second arcuate wall; 4. a circular door body; 41. a door frame; 42. a convex basin; 421. a left longitudinal rib; 422. a right longitudinal rib; 423. a lower lateral convex strip; 424. flanging; 425. a bottom wall of the convex basin; 5. a drainage surface; 51. a liquid inlet; 52. a rib is protruded; 521. valley portions 522, peak portions; 6. a box body; 61. a first conforming wall; 62. an inclined wall; 621. a liquid outlet; 63. a second conformable wall; 64. a third conformable wall; 65. a resilient wall; 651, respectively; a blister structure; 7. a rod body; 71. a base; 72. a protrusion; 8. a first clamping block; 81. a first clamping part; 82. an upper cover body; 9. a second clamp block; 91. a second clamping part; 92. a lower cover body; 01. heating the sleeve; 02. a longitudinal groove 021 and an installation opening; 03. a ventilation net; 04. a fixed mount; 05. heating the chip; 06. a base; 07. TTC test paper; 08. rolling TTC test paper; 09. the cartridge is contained.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1-2, the present invention provides a device for detecting antibiotics in cow's milk, comprising:

a fermentation cavity is arranged in the detection tube 1;

the detection window 11 is arranged on the side wall of the detection tube 1 and communicated with the fermentation cavity;

a blocking member movably installed on the detection tube 1 to open/close the detection window 11;

the detection device further comprises TTC test paper, the TTC test paper covers the detection window 11, the blocking piece closes the detection window 11, and the TTC test paper is fixed on the detection window 11.

The blocking piece comprises an arc-shaped wall 31 made of transparent materials, the arc-shaped wall 31 is rotatably arranged on the detection tube 1 and is attached to the outer wall of the detection tube 1, the TTC test paper covers the detection window 11, the arc-shaped wall rotates to the detection window 11, and the TTC test paper is clamped between the detection window 11 and the arc-shaped wall.

The utility model discloses a detection tube, including detection tube 1, cover 3, rotatory wall of circumference, arc wall top fixed connection on the wall of circumference, cover 3 is provided with open-top, the rotatable lid that is provided with 3 on the open-top, cover 3 includes diapire and circumference wall, the rotatable suit of circumference wall on the open-top, arc wall top fixed connection be in on the circumference wall, cover 3 rotates, drives arc wall 31 encircles 1 outer wall of detection tube rotates, opens/closes detection window 11.

Lie in on the outer wall of detecting tube 1 11 one side border sets up fixed strip 12, correspond on the inner wall of arc wall and be provided with the fixed slot, the arc wall rotates to the cover during detecting window 11, fixed strip 52 card is gone into in the fixed slot, it is fixed the arc wall.

The detection tube 1 is provided with an accommodating box 09 at the bottom, a winding drum is arranged in the accommodating box 09, a coiled TTC test paper 08 is wound on the winding drum, the arc-shaped wall comprises a first arc-shaped wall 311 extending from the cover body 3 to the bottom end of the detection tube 1, a second arc-shaped wall 312 extending along the circumferential direction of the detection tube 1 is arranged on one side of the first arc-shaped wall 311 corresponding to the detection window 11, the free end of the coiled TTC test paper on the winding drum in the accommodating box 09 extends out of the accommodating box 6 and extends along the outer wall of the detection tube 1 to one side of the cover body to cover the detection window 11, and the cover body rotates until the second arc-shaped wall 312 covers the detection window 11 to fix the TTC test paper.

The use method of the antibiotic detection device in the embodiment comprises the following steps:

firstly, rotating the cover body 3 to enable the arc-shaped wall to rotate and open the detection window 11, putting in a lactobacillus gel ball, activating lactobacillus, putting cow milk into a fermentation chamber through the detection window 11, rotating the cover to enable the arc-shaped wall to close the detection window 11, fermenting an internal inspection object, rotating the arc-shaped wall to open the detection window 11 after fermenting for a certain time, drawing and pulling the free end of the coiled TTC test paper upwards to cover the detection window 11 with the TTC test paper, then rotating the cover body to fix the TTC test paper on the detection window 11, transversely placing the detection pipe 1 at the moment, enabling the internal inspection object to flow downwards and contact the TTC test paper, and judging whether the milk has antibiotic residues or not by checking the color change of the TTC test paper through the arc-shaped wall.

The beneficial effects of this embodiment:

in this embodiment, set up inspection window 11 at the lateral wall of test tube 1, set up the arc wall on the lid, can realize opening/closing inspection window 11 through rotating the lid, whole operation is simple and convenient, and keep apart internal cavity with the external world after closing inspection window 11, ensure the inspection accuracy, and set up the TTC test paper of package in test tube 1 bottom, conveniently carry, upwards pull TCC test paper can conveniently detect the interior material of test tube 1, and through arc wall centre gripping TTC test paper, when needing many times to inspect, only pull the free end of TTC test paper, partially take out the test paper after the inspection, pull in the test window 11 with the test paper that does not detect and detect again and detect, whole process need not pour out the interior material of test tube 1, very big simplification operation, and high work efficiency.

Example two

The second embodiment provides an antibiotic detection device different from the first embodiment.

Specifically, referring to fig. 3 and 4, the device for detecting antibiotics in cow's milk comprises:

a fermentation cavity is arranged in the detection tube 1;

the plugging piece is internally provided with a containing cavity for containing a TTC reagent,

the utility model discloses a fermentation chamber, including the fermentation chamber, detection window 11 is circular mouth, the shutoff piece includes rotatable coupling and is in the circular door body 4 on the detection tube 1, the circular door body 4 rotates and opens/close detection window 11, the circular door body 4 sets up door frame 41, and door frame 41 middle part is provided with through the mouth, install the transparent window on the through mouth, the transparent window include to convex protruding basin 42 in the fermentation chamber, protruding basin 42 opening border is outwards turned over and is rolled over and form turn-ups 424, protruding basin 42 passes through the through mouth, the turn-ups laminating at protruding basin 42 border is fixed on the door frame 41.

The bottom wall 425 of the convex basin 42 is a straight wall, an installation part is arranged on the outer wall surface of the straight wall, the TTC test paper is inserted and fixed in the installation part, the round door body 4 is closed, and the TTC test paper extends into the fermentation cavity along with the convex basin 42.

The installation department is including setting up the sand grip 422 is indulged on the left side on the diapire surface of protruding basin 42 and is indulged sand grip 421 and right side, the bottom of indulging sand grip 421 and right side in the left side is provided with the horizontal sand grip 423 of downside, and the sand grip 421 is indulged in the left side and right side sand grip 422 all has the spacing turn-ups to the lateral buckling, the horizontal sand grip 423 of downside is provided with the spacing turn-ups of upwards buckling, the TTC test paper inserts between each sand grip, and the spacing turn-ups restriction TTC test paper of each sand grip is hugged closely the diapire.

at first rotate and open circular door body 4, put into the lactic acid bacteria gel ball, activate the lactic acid bacteria earlier, then drop into the fermentation chamber with cow's milk through detection window 11, close circular door body 4, let inside inspection thing ferment, after the fermentation certain time, rotate circular door body 4, open detection window 11 tears small TTC test paper and inserts in the installation department, close circular lid, inside the diapire of the protruding basin 42 of circular body stretches into the fermentation chamber, fully contacts with inside inspection thing, because the protruding basin 42 of circular door body 4 is transparent, consequently can directly observe inside TTC test paper color change through protruding basin 42 to judge whether have antibiotic residue.

The beneficial effects of this embodiment:

in this embodiment, set up detection window 11 and the circular door body 4 through the lateral wall at test tube 1, can realize opening/closing detection window 11 through rotating the circular door body 4, whole operation process is simple and convenient, and keep apart inside cavity and external world after closing the circular door body 4, ensure the inspection accuracy, lid circular door body 4 has protruding basin 42, protruding basin 42 diapire is to the fermentation chamber protrusion, consequently close 4 back TCC test paper of the circular door body and can stretch into the inside and abundant contact of detection thing of fermentation cavity, improve the detection accuracy degree, whole process need not pour out the interior material of test tube 1, very big simplification operation process, and the work efficiency is improved.

EXAMPLE III

Referring to FIGS. 5-8, in a third embodiment, another embodiment of an antibiotic detection device is provided.

Specifically, detect detection device of antibiotic in cow's milk, including:

a fermentation cavity is arranged in the detection tube 1;

the utility model discloses a fermentation chamber, including the fermentation chamber, detection window 11 is circular mouth, the shutoff piece includes rotatable coupling and is in the circular door body 4 on the detection tube 1, the circular door body 4 rotates and opens/close detection window 11, the circular door body 4 sets up door frame 41, and door frame 41 middle part is provided with through the mouth, install the transparent window on the through mouth, the transparent window include to convex protruding basin 42 in the fermentation chamber, protruding basin 42 opening border is outwards turned over and is rolled over and form turn-ups 424, protruding basin 42 passes through the through mouth, the turn-ups 424 laminating at protruding basin 42 border is fixed on the door frame 41.

The inside demountable installation of protruding basin 42 has the box body 6 that holds the TTC reagent, be provided with the intercommunication on the protruding basin 42 the inside cavity of box body 6 with the intercommunication structure in fermentation chamber.

The diapire of protruding basin 42 is straight wall, is provided with on the top wall of protruding basin 42 perisporium to the drainage face 5 that straight wall extends, be equipped with inlet 51 on the drainage face 5, box body 6 is including liquid outlet 621, box body 6 is installed in protruding basin 42, liquid outlet 621 on the box body 6 with inlet 51 is linked together, and box body 6 keeps away from the one side of protruding basin 42 inner wall is elastic wall 65, extrudees elastic wall 65 pours into the TTC reagent in the box body 6 drainage face 5. The box body 6 comprises a first attaching wall 61 attached to the bottom wall of the convex basin 42, the top of the first attaching wall is connected with an inclined wall 62 attached to and connected with a drainage surface 5, the inclined wall 62 is attached to and connected with the drainage surface 5, a liquid outlet 621 is arranged on the inclined wall 62, two opposite sides of the first attaching wall 61 are respectively provided with a second attaching wall 63 and a third attaching wall 64, the radian of the second attaching wall and the radian of the third attaching wall are matched with those of two side walls of the peripheral wall of the convex basin 42, the two side walls of the peripheral wall of the convex basin 42 are attached to each other, one opposite side of the box body 6 and the first attaching wall 61 is the elastic wall 65, a convex bubble structure 651 is arranged on the elastic wall 65, a suction pipe is arranged in a cavity inside the box body 6, one end of the suction pipe is connected with the liquid outlet 621, and the other end of the suction pipe extends to the bottom wall of the box body.

Referring to fig. 8, a plurality of ribs 52 are arranged on the straight wall, the plurality of ribs 52 are arranged at intervals, an included angle is formed between a central axis of the length direction of each rib 52 and a horizontal plane, each rib 52 has a crest portion protruding upward 72 and a trough portion 521 recessed downward toward the vertical direction, the direction of the protrusions 72 of the crest portions on two adjacent ribs 52 is the same, the recessed direction of the trough portions 521 on two adjacent ribs 52 is the same, the number of crest portions is multiple, the number of trough portions 521 is multiple, and the crest portions and the trough portions 521 are alternately arranged.

firstly, a box body 6 loaded with TTC reagent is installed inside a convex basin 42, a liquid outlet 621 of the box body 6 is communicated with a liquid inlet 51 on the convex basin 42, a round door body 4 is opened by rotation, a lactobacillus gel ball is put in, lactobacillus is activated firstly, then cow milk is put into a fermentation chamber through a detection window 11, the round door body 4 is closed, internal inspectors are fermented, the box body 6 is extruded after being fermented for a certain time, the TTC reagent in the box body 6 is sprayed on a drainage surface 5 on the convex basin 42, TTC test paper flows into the straight wall through the drainage surface 5 and adheres to a convex rib 52 on the straight wall, the TTC test paper is fully contacted with the inspectors adhered to the convex rib 52, the color change of the internal TTC test paper can be directly observed through a detection pipe 1, and whether the residual antibiotics exist is judged.

The beneficial effects of this embodiment:

in this embodiment, by providing the box body 6 for storing the TTC reagent, the TTC test paper does not need to be torn manually in the inspection experiment, and only the box body 6 is squeezed to directly observe the color change. And this embodiment sets up drainage face 5 and the straight wall that has protruding muscle 52 on box body 6, sets up protruding muscle 52 on the straight wall, makes the test object bond easily, and drainage face 5 is direct with reagent drainage to this straight wall that has protruding muscle 52 on to the test object of adhesion fully contacts on the protruding muscle 52 with straight wall, improves and detects the accuracy, prevents that TTC reagent and test object from not having the contact and leading to the experiment failure.

Example four

In the fourth embodiment, referring to fig. 9, a scheme for improving the detection accuracy by contacting an auxiliary test substance with a TTC strip or a reagent is further provided on the basis of the first to third embodiments.

Antibiotic detection device in cow milk includes the radial drive arrangement with fermentation intracavity detection thing to 1 inner wall driven of test tube, radial drive arrangement includes that the body of rod 7 is in with rotatable setting the base 71 of 1 bottom of test tube, 1 bottom of test tube is provided with the through-hole, the body of rod 7 runs through the through-hole sets up, and the body of rod 7 is located along a plurality of longitudinal separation setting on the pole section of fermentation intracavity by the arch 72 that the body of rod 7 outer wall extends to the inner wall of test tube 1, each arch 72 is the heliciform around the body of rod 7 center and arranges, the body of rod 7 stretches out test tube 1's pole section fixed connection is in on the base 71, base 71 rotates and drives the body of rod 7 rotates.

The beneficial effect of above-mentioned scheme:

each arch 72 on the body of rod 7 becomes the heliciform around the axis of the body of rod 7 and arranges, can produce macroscopic tensile flow field, along with the rotation of the body of rod 7, the continuous grow in cross-section that the detector of same position flows diminishes for cow milk and lactic acid bacteria gel ball misce bene accelerate the fermentation, in addition because each arch 72 is the heliciform and arranges, can produce an ascending spiral driving force, promote the detector upwards to detection window 11 moves, and each arch 72 is to the radial promotion with the material, makes the inspection object remove to detection window 11, with TTC test paper or the reagent contact of detection window 11 department, improves detection accuracy.

In another solution, as shown in fig. 10, a first clamping block 8 and a second clamping block 9 are arranged in the detecting tube 1, the first clamping block 8 and the second clamping block 9 are movably arranged along the axial direction of the detection tube 1, the lower surface of the first clamping block 8 is a first clamping part 81 with the middle part protruding downwards, the upper surface of the second clamping block 9 is provided with a second clamping part 91 with the middle part protruding upwards, the opening at the top of the detection tube 1 is provided with an upper cover body 82, the upper cover body 82 is provided with a first threaded hole, the first clamping block 8 is connected with an upper screw rod which is connected with the upper cover body 82 in a threaded manner, and extends out of the upper cover body 82, a lower cover body 92 is arranged on the bottom opening of the detection tube 1, the lower cover body 92 is provided with a second threaded hole, the second clamping block 9 is connected with a lower screw rod, and the lower screw rod is in threaded connection with the lower cover body 92 and extends out of the lower cover body 92.

The beneficial effect of above-mentioned scheme: when the antibiotic needs to be detected, the upper cover body 82 and the lower cover body 92 can be respectively twisted, so that the first clamping block 8 and the second clamping block 9 both move towards the detection window 11, and dispersed checked objects are accumulated at the detection window 11, so that the checked objects are fully contacted with TTC test paper or reagent at the window, the detection accuracy of the antibiotic is improved, and the problem that the TTC test paper or reagent cannot be contacted with the checked objects is effectively solved.

EXAMPLE five

In this fifth embodiment, referring to fig. 11, a heating sleeve 01 is further added to the detection tube 1 of the device for detecting antibiotics in cow milk, and is used to heat the detection tube 1 to accelerate activation and fermentation.

Specifically, the outer wall of detecting tube 1 is provided with along axially extended heat transfer sand grip 13, heating sleeve 01 open-top is provided with on the heating sleeve 01 to the vertical groove 02 of sunken inside, and vertical groove 02 is covered and is installed ventilation net 03, sets up installing port 021 on the sunken diapire of vertical groove 02, install mount 04 on the installing port 021, install semiconductor heating piece 05 on the mount 04, semiconductor heating piece 05 with the laminating of heat transfer sand grip 13 on the detecting tube 1, and the heating of semiconductor heating piece 05 end orientation heat transfer sand grip 13, the cold junction orientation ventilation net 03, the sunken diapire of vertical groove is flat wall, the heating sleeve cover is in on the detecting tube 1, the sunken diapire laminating of fixed slot the heat transfer sand grip 13 of detecting tube 1. The base is installed to heating sleeve 01 bottom open end, and base 06 includes the rampart that diapire circumference diapire set up along diapire a week, 1 bottom of detecting tube is inserted and is installed in base 06.

The beneficial effect of above-mentioned scheme is:

with heating sleeve cover on the test tube 1, put into test tube 1 with lactic acid bacteria gel ball, then control heating sleeve heating, heating telescopic heating chip 05 heats heat-transfer sand grip 13 for inside cavity temperature risees for the lactic acid bacteria activation, then put into test tube 1 with cow milk in, continue control heating sleeve heating and improve fermentation rate, ensure final antibiotic inspection accuracy. The corresponding temperature of lid heating sleeve can be adjusted as required, ensures that the experiment is accomplished under the appropriate condition.

Referring to fig. 12, the heating sleeve 01 comprises a control circuit, the semiconductor heating sheet is connected with the control circuit, and the control circuit comprises resistors R1-R4, capacitors C1-C4, diodes D1-D2, NPN bipolar transistors Q1-Q2, PNP bipolar transistors Q3-Q4 and an amplifier F;

The resistor R2 in the control circuit is a variable resistor, the current adjustment of the semiconductor heating sheet can be realized through the resistor R2, and the control circuit comprises better components such as resistors R1-R4, capacitors C1-C4, diodes D1-D2, NPN bipolar transistors Q1-Q2, PNP bipolar transistors Q3-Q4 and an amplifier F, so that the active compensation and power stabilization of the circuit can be realized, the working power of the semiconductor heating sheet can be stabilized, and the applicability is strong.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a detection device of antibiotic in detection cow's milk which characterized in that, including:

the device comprises a detection tube (1), wherein a fermentation cavity is arranged in the detection tube (1);

the detection window (11) is arranged on the side wall of the detection pipe (1) and communicated with the fermentation cavity;

a blocking piece movably mounted on the detection tube (1), the blocking piece being used for selectively blocking the detection window (11);

the blocking piece is internally provided with a containing cavity for containing a TTC reagent, or the detection device further comprises TTC test paper (07), the TTC test paper (07) covers the detection window (11), the blocking piece closes the detection window (11), and the TTC test paper (07) is fixed on the detection window (11).

2. The device for detecting antibiotics in cow's milk according to claim 1, wherein the blocking member comprises an arc-shaped wall (31) made of transparent material, the arc-shaped wall (31) is rotatably disposed on the detecting tube (1) and is attached to the outer wall of the detecting tube (1), the TTC test paper (07) covers the detecting window (11), the arc-shaped wall (31) is rotated to the detecting window (11), and the TTC test paper is clamped between the detecting window (11) and the arc-shaped wall (31).

3. The detection device for detecting antibiotics in cow's milk according to claim 2, wherein the detection tube (1) is provided with an top opening, a cover body (3) is rotatably provided on the top opening, the cover body (3) comprises a bottom wall and a circumferential wall, the circumferential wall is rotatably sleeved on the top opening, the top end of the arc-shaped wall (31) is fixedly connected to the circumferential wall, the cover body (3) rotates to drive the arc-shaped wall (31) to rotate around the outer wall of the detection tube (1), and the detection window (11) is opened/closed;

lie in on the outer wall of sense tube (1) one side border sets up fixed strip (12) detection window (11), correspond on the inner wall of arc wall (31) and be provided with the fixed slot, arc wall (31) rotate to the cover during detection window (11), fixed strip (12) card is gone into in the fixed slot, it is fixed arc wall (31).

4. The device for detecting antibiotics in cow's milk according to claim 3, wherein the bottom of the detecting tube is provided with a containing box (09), the containing box (09) is provided with a winding drum, the winding drum is wound with the coiled TTC test paper (08), the curved wall (31) comprises a first curved wall (311) extending from the cover body (3) to the bottom end of the detecting tube, one side of the first curved wall (311) corresponding to the detecting window is provided with a second curved wall (312) extending along the circumferential direction of the detecting tube, the free end of the coiled TTC test paper (08) on the winding drum in the containing box (09) extends out of the containing box (09) along the outer wall of the detecting tube (1) to one side of the cover body (3) to cover the detecting window (11), the cover body (3) rotates until the second curved wall (312) covers the detecting window (11), and fixing the TTC test paper (07).

5. The device for detecting antibiotics in cow milk according to claim 1, wherein the detection window (11) is a circular opening, the blocking piece comprises a circular door body (4) rotatably connected to the detection tube, the circular door body (4) rotates to open/close the detection window (11), the circular door body (4) is provided with a door frame (41), a through opening is formed in the middle of the door frame (41), a transparent window is installed on the through opening, the transparent window comprises a convex basin (42) protruding into the fermentation chamber, the opening edge of the convex basin (42) is turned outwards to form a turned edge (424), the convex basin (42) penetrates through the through opening, and the turned edge of the convex basin (42) is attached and fixed to the door frame (41);

the bottom wall of the convex basin (42) is a straight wall, an installation part is arranged on the outer wall surface of the straight wall, the TTC test paper (07) is fixedly inserted into the installation part, the round door body (4) is closed, and the TTC test paper (07) extends into the fermentation cavity along with the convex basin (42); or a box body (6) containing TTC reagent is detachably mounted in the convex basin (42), and a communicating structure for communicating the inner cavity of the box body (6) with the fermentation cavity is arranged on the convex basin (42).

6. The device for detecting antibiotics in cow's milk according to claim 5, wherein the mounting portion comprises a left longitudinal rib (421) and a right longitudinal rib (422) which are arranged on the outer surface of the bottom wall of the convex basin, the bottoms of the left longitudinal rib (421) and the right longitudinal rib (422) are provided with lower lateral ribs (423), the left longitudinal rib (421) and the right longitudinal rib (422) are both provided with limiting flanges which are bent towards opposite sides, the lower lateral rib (423) is provided with limiting flanges which are bent upwards, the TTC test paper (07) is inserted between the ribs, and the limiting flanges of the ribs limit the TTC test paper to tightly attach (07) to the outer surface of the bottom wall of the convex basin (42);

or the bottom wall of the convex basin (42) is a straight wall, a drainage surface (5) extending towards the straight wall is arranged on the top wall surface of the peripheral wall of the convex basin, a plurality of convex ribs (52) are arranged on the straight wall, the convex ribs (52) are arranged at intervals, an included angle is formed between the central axis of the length direction of each convex rib (52) and the horizontal plane, each convex rib (52) is provided with a crest portion (522) protruding upwards vertically and a trough portion (521) recessed downwards towards the vertical direction, the crest portions (522) on two adjacent convex ribs (52) have the same protruding direction, the trough portions (521) on two adjacent convex ribs have the same recessed direction, the crest portions (522) are multiple, the trough portions (521) are multiple, and the crest portions (522) and the trough portions (521) are alternately arranged; a liquid inlet (51) is arranged on the drainage surface (5), the box body (6) comprises a liquid outlet (621), the box body (6) is installed in the convex basin (42), the liquid outlet (621) on the box body (6) is communicated with the liquid inlet (51), one surface of the box body (6) far away from the inner wall of the convex basin (42) is an elastic wall (65), and the elastic wall (65) is extruded to inject the TTC reagent in the box body (6) into the drainage surface (5); the box body (6) comprises a first attaching wall (61) attached to the bottom wall of the convex basin (42), the top of the first attaching wall (61) is connected with an inclined wall (62) attached to and connected with the drainage surface (5), the inclined wall (62) is attached to and connected with the drainage surface (5), a liquid outlet (621) is formed in the inclined wall (62), two opposite sides of the first attaching wall (61) are respectively provided with a second attaching wall (63) and a third attaching wall (64), radians of the second attaching wall (63) and the third attaching wall (64) are matched with two side walls of the peripheral wall of the convex basin (42) and are respectively attached to two side walls of the peripheral wall of the convex basin (42), one opposite side of the box body (6) and the first attaching wall (61) is the elastic wall (65), a convex bubble structure (651) is arranged on the elastic wall (65), and a suction pipe is arranged in a cavity in the box body (6), one end of the suction pipe is connected with the liquid outlet, and the other end of the suction pipe extends to the bottom of the inner cavity of the box body (6).

7. The detection device for detecting the antibiotics in the cow's milk as claimed in claim 6, which comprises a radial driving device for driving the detection object in the fermentation cavity to the inner wall of the detection tube (1), the radial driving device comprises a rod body (7) and a base (71) which is rotatably arranged at the bottom of the detection tube, the bottom of the detection tube (1) is provided with a through hole, the rod body (7) penetrates through the through hole, the rod body (7) is positioned on the rod section in the fermentation cavity and is provided with a plurality of bulges (72) which are arranged along the longitudinal interval and extend from the outer wall of the rod body (7) to the inner wall of the detection tube, the bulges (72) are spirally arranged around the center of the rod body (7), the rod body (7) stretches out the rod section of the detection tube (1) and is fixedly connected to the base (71), and the base (71) rotates to drive the rod body (7) to rotate.

8. The device for detecting antibiotics in cow's milk according to claim 6, wherein a first clamping block (8) and a second clamping block (9) are arranged in the detection tube (1), the first clamping block (8) and the second clamping block (9) are movably arranged along the axial direction of the detection tube, the lower surface of the first clamping block (8) is a first clamping portion (81) with a downward middle part, the upper surface of the second clamping block (9) is a second clamping portion (91) with an upward middle part, an upper cover body (82) is installed on the opening at the top of the detection tube (1), a first threaded hole is formed in the upper cover body (82), an upper screw rod is connected to the first clamping block (8) and is in threaded connection with the upper cover body (82) and extends out of the upper cover body (82), a lower cover body (92) is installed on the opening at the bottom of the detection tube (1), and a second threaded hole is formed in the lower cover body (92), the second clamping block (9) is connected with a lower screw, the lower screw is in threaded connection with the lower cover body (92), and the lower screw extends out of the lower cover body (92).

9. The device for detecting antibiotics in cow's milk according to any one of claims 1-8, wherein the device comprises a heating sleeve (01), the outer wall of the detection tube (1) is provided with heat transfer convex strips (13) extending along the axial direction, the top of the heating sleeve (01) is open, the heating sleeve (01) is provided with a longitudinal groove (02) recessed inwards, the longitudinal groove (02) is covered with an air ventilation net (03), the bottom wall of the recess of the longitudinal groove (02) is provided with a mounting port (021), the mounting port (021) is provided with a fixing frame (04), the fixing frame (04) is provided with a semiconductor heating sheet (05), the semiconductor heating sheet (05) is attached to the heat transfer convex strips (13) on the detection tube (1), the heating end of the semiconductor heating sheet (05) faces the heat transfer convex strips (13), and the cold end faces the air ventilation net (03), the bottom wall of the recess of the longitudinal groove (02) is a straight wall, the heating sleeve (01) is sleeved on the detection tube, and the bottom wall of the recess of the longitudinal groove (02) is attached to the heat transfer raised line (13) of the detection tube (1);

base (06) are installed to heating sleeve (01) bottom open end, and base (06) include diapire circumference diapire along the rampart that diapire a week set up, insert and install bottom detecting tube (1) in base (06).

10. The detection device for detecting the antibiotics in the cow's milk as claimed in claim 9, wherein the heating sleeve (01) comprises a control circuit, the semiconductor heating sheet is connected with the control circuit, and the control circuit comprises resistors R1-R4, capacitors C1-C4, diodes D1-D2, NPN bipolar transistors Q1-Q2, PNP bipolar transistors Q3-Q4 and an amplifier F;