Food veterinary drug residue detection device

Abstract

The invention discloses a food veterinary drug residue detection device, and relates to the field of animal epidemic disease control equipment, the food veterinary drug residue detection device comprises a mixing cup, a shunt tube assembly and a centrifuge tube, the mixing cup is mounted at the top of a cover box, the lower part of the mixing cup is connected in the shunt tube assembly through a pipeline, a shunt tube is arranged below the shunt tube assembly, and the centrifuge tube is connected with the shunt tube assembly through a pipeline. The flow dividing pipe is communicated with the centrifugal pipe below the flow dividing pipe; an illumination assembly is arranged on the outer side wall of the mixing cup, a lifting assembly is arranged on the outer side of the flow dividing pipe assembly and comprises a connecting rod and a fixing plate, and the connecting rod can move up and down along with movement of the mixing cup so that the flow dividing pipe can be inserted into and moved out of the centrifugal pipe; the arranged liquid distribution pipes are used for respectively accommodating mixed liquid flowing out of the mixing cup according to the principle of communicating vessels, so that the mixed detection liquid can be quickly distributed into each liquid distribution pipe in the same amount, and finally flows into the centrifugal tube from the liquid distribution pipes for centrifugal separation.

Description

Technical Field

[0001] The invention relates to the field of animal disease prevention and control equipment, in particular to a food veterinary drug residue detection device. Background Art

[0002] With economic development and the improvement of living standards, people have higher and higher requirements for food safety. In the breeding industry, veterinary drugs are inevitably used to prevent and treat diseases and improve breeding efficiency. In order to avoid serious harm to human health, it is very necessary to conduct veterinary drug residue detection.

[0003] Food veterinary drug residue detection requires sample preparation. In terms of sample pretreatment, centrifugation, filtration, solid phase extraction and other steps are usually used. In this sample preparation process, multiple groups of samples need to be prepared for testing. Because of the large number, the testers need to repeat the preparation multiple times or prepare multiple groups at a time, which involves multiple mixing, proportioning, stirring, weighing and other processes. In addition, in order to ensure the quality of subsequent centrifugation, the weight of the prepared samples needs to be the same or basically the same. Otherwise, it will affect the quality of centrifugation and easily cause damage to the centrifuge, which is very cumbersome. Summary of the invention

[0004] The purpose of the present invention is to provide a food veterinary drug residue detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a food veterinary drug residue detection device, comprising a mixing cup, a shunt pipe assembly and a centrifuge tube, wherein the mixing cup is installed on the top of a cover box, the lower part of the mixing cup is connected to the shunt pipe assembly through a pipeline, a shunt pipe is provided below the shunt pipe assembly, and the shunt pipe is connected to the centrifuge tube below;

[0006] An illumination component is provided on the outer wall of the mixing cup, and the illumination component includes a light emitting component and a light receiving component, and the two are symmetrically arranged on both sides of the mixing cup. The light emitting component emits light through the mixing cup and irradiates the light receiving component, so as to detect the light transmittance of the solution in the mixing cup;

[0007] An elastic component is provided below the mixing cup, and the elastic component includes an elastic ring, and the elastic ring can produce expansion and contraction changes when the weight of the mixing cup changes;

[0008] A lifting assembly is provided on the outside of the shunt tube assembly, and the lifting assembly includes a connecting rod and a fixing plate. The connecting rod is fixedly mounted on both sides of the fixing plate, and the connecting rod can move up and down following the movement of the mixing cup to insert the shunt tube into and remove it from the centrifuge tube.

[0009] Preferably, a clamping ring is provided at the mouth and the outer side of the bottom of the mixing cup, and a liquid discharge port is provided at the bottom of the mixing cup.

[0010] Preferably, the diverter tube assembly further includes a liquid distributing tube and a plugging piece. The liquid distributing tube is provided with a plurality of pieces which are arranged at equal intervals around the circumference of the pipeline. The top of the plugging piece is fixedly mounted on the bottom of the mixing cup via a bracket. When the detection liquid is configured in the mixing cup, the lower end of the plugging piece is located at the bottom of the pipeline and can move freely up and down with the mixing cup. The diverter tube is located directly below the liquid distributing tube.

[0011] Preferably, the centrifuge tube is installed in a centrifuge.

[0012] Preferably, the light output assembly includes a guide rod 1, a clamping block 1 and a light source, the top of the guide rod 1 is provided with a baffle and is slidably mounted on the top plate of the cover box, the top of the clamping block 1 is fixedly connected to the bottom of the guide rod 1, the front end face of the clamping block 1 abuts against the outer wall of the mixing cup, and the light sources are evenly spaced from top to bottom on the front end face of the clamping block 1 and are separated from each other by spacers.

[0013] Preferably, the light receiving component comprises guide rod 2, clamping block 2 and photosensitive film, wherein the top of guide rod 2 is provided with a baffle and is slidably mounted on the top plate of the cover box, the top of clamping block 2 is fixedly connected to the bottom of guide rod 2, the front end face of clamping block 2 abuts against the outer wall of the mixing cup, and the photosensitive film is evenly spaced from top to bottom on the front end face of clamping block 2 and separated from each other by spacers.

[0014] Preferably, the elastic component further comprises a support ring and a bracket, the elastic ring is installed in the support ring, and the bracket is fixedly installed on both sides of the support ring and fixedly connected to the support ring.

[0015] Preferably, the lifting assembly further comprises a delay rod, the root of the connecting rod is slidably connected in the column of the bracket, the top of the delay rod is fixedly connected to the mixing cup, and the bottom of the delay rod passes through the connecting rod and is located below the connecting rod.

[0016] Preferably, a stirring hole is provided on the top of the cover box just above the mixing cup.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The invention can mix a sufficient amount of the product to be tested and the test liquid at one time by means of a mixing cup, and judge the uniformity of the mixed liquid by means of illumination and detection of the illumination, so as to facilitate the subsequent acquisition of a uniformly mixed test liquid;

[0019] 2. The dispensing tubes are provided to contain the mixed liquid flowing out of the mixing cup respectively through the communicating vessel principle, and can quickly distribute the mixed test liquid in the same amount to each dispensing tube respectively, and finally flow from the dispensing tube to the centrifuge tube for centrifugal separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 A top view of the present invention;

[0022] Figure 3 for Figure 2 Sectional structure diagram at inner AA;

[0023] Figure 4 for Figure 3 A magnified view of the structure at inner B;

[0024] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the light-emitting component and the light-receiving component.

[0026] In the figure: 1-mixing cup; 11-clamping ring; 12-drain port; 2-shunt pipe assembly; 21-pipeline; 22-shunt pipe; 23-distribution pipe; 24-blocking piece; 3-centrifuge tube; 4-illumination assembly; 41-light output assembly; 411-guide rod one; 412-clamping block one; 413-light source; 42-light receiving assembly; 421-guide rod two; 422-clamping block two; 423-photosensitive film; 5-elastic assembly; 51-elastic ring; 52-support ring; 53-bracket; 6-lifting assembly; 61-connecting rod; 62-fixing plate; 63-delay pull rod; 7-cover box; 71-stirring hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 6 The present invention provides a technical solution: a food veterinary drug residue detection device, comprising a mixing cup 1, a shunt pipe assembly 2 and a centrifuge tube 3, wherein the mixing cup 1 is mounted on the top of a cover box 7, the lower part of the mixing cup 1 is connected to the shunt pipe assembly 2 through a pipeline 21, a shunt pipe 22 is provided below the shunt pipe assembly 2, the shunt pipe 22 is connected to the centrifuge tube 3 below, and the pipeline is used to flow the mixed liquid in the mixing cup 1 into the shunt pipe 23 below;

[0029] An illumination component 4 is provided on the outer wall of the mixing cup 1. The illumination component 4 includes a light emitting component 41 and a light receiving component 42, and the two are symmetrically arranged on both sides of the mixing cup 1. The light emitting component 41 emits light through the mixing cup 1 and irradiates the light receiving component 42, so as to detect the transmittance of the solution in the mixing cup 1, and judge the uniformity of the mixed solution in the mixing cup 1 according to the difference in transmittance.

[0030] An elastic component 5 is provided below the mixing cup 1. The elastic component 5 includes an elastic ring 51. The elastic ring 51 can expand and contract when the weight of the mixing cup 1 changes, so as to facilitate the lifting and lowering of the mixing cup 1.

[0031] A lifting assembly 6 is provided on the outside of the shunt tube assembly 2. The lifting assembly 6 includes a connecting rod 61 and a fixing plate 62. The connecting rod 61 is fixedly mounted on both sides of the fixing plate 62. The connecting rod 61 can move up and down following the movement of the mixing cup 1 to insert the shunt tube 22 into and remove it from the centrifuge tube 3.

[0032] In this embodiment, a clamping ring 11 is provided at the mouth and the outer side of the bottom of the mixing cup 1, and a drain port 12 is provided at the bottom of the mixing cup 1. The clamping ring 11 is used to clamp the clamping block 1 412 and the clamping block 2 422. The drain port 12 is connected to the pipeline 21. A valve is provided on the pipeline 21 to realize the opening and closing of the pipeline 21.

[0033] In the present embodiment, the shunt pipe assembly 2 further comprises a liquid distributing pipe 23 and a plugging member 24. The liquid distributing pipe 23 is provided with a plurality of members which are arranged at equal intervals around the pipeline 21. The top of the plugging member 24 is fixedly mounted on the bottom of the mixing cup 1 through a bracket. When the detection liquid is arranged in the mixing cup 1, the lower end of the plugging member 24 is located at the bottom of the pipeline 21 and can freely move up and down with the mixing cup 1. The shunt pipe 22 is located directly below the liquid distributing pipe 23. When a certain amount of mixed liquid is contained in the mixing cup 1, the mixing cup 1 presses down the elastic ring 51 and makes the overall position of the mixing cup 1 at the lowest point, so that the plugging member 24 can be driven to be located at the bottom of the pipeline 21. In this way, the plugging member 24 will not block the connecting pipe between the liquid distributing pipe 23 and the pipeline 21, and the mixed liquid in the mixing cup 1 can normally enter the liquid distributing pipe 23. In the process of the mixed liquid in the mixing cup 1 flowing out, the weight gradually decreases. The elastic ring 51 will move upward, and the blocking member 24 will move upward, so that the blocking member blocks the connecting pipe between the liquid dispensing tube 23 and the pipeline 21 until it is completely blocked. In order to prevent the liquid in the liquid dispensing tube 23 from being contaminated, a filter screen will be set at the top of the liquid dispensing tube 23.

[0034] In this embodiment, the centrifuge tube 3 is installed in a centrifuge, and the solid and liquid substances in the centrifuge tube 3 are separated by the centrifuge.

[0035] In this embodiment, the light emitting component 41 includes a guide rod 411, a clamping block 412 and a light source 413. The top of the guide rod 411 is provided with a baffle and is slidably mounted on the top plate of the cover box 6. The top of the clamping block 412 is fixedly connected to the bottom of the guide rod 411. The front end surface of the clamping block 412 abuts against the outer wall of the mixing cup 1. The light sources 413 are evenly spaced from top to bottom on the front end surface of the clamping block 412 and are separated from each other by partitions. The light sources 413 are arranged in multiple groups from top to bottom, which can illuminate the mixed liquid at different heights in the mixing cup 1, so as to determine whether the mixed liquid at different heights is evenly mixed.

[0036] In this embodiment, the light receiving component 42 includes a guide rod 421, a clamping block 422 and a photosensitive film 423. The top of the guide rod 421 is provided with a baffle and is slidably mounted on the top plate of the cover box 6. The top of the clamping block 422 is fixedly connected to the bottom of the guide rod 421. The front end surface of the clamping block 422 abuts against the outer wall of the mixing cup 1. The photosensitive films 423 are evenly spaced from top to bottom on the front end surface of the clamping block 422 and are separated from each other by spacers.

[0037] In this embodiment, the elastic component 5 further includes a support ring 52 and a bracket 53 . The elastic ring 51 is installed in the support ring 52 . The bracket 53 is fixedly installed on both sides of the support ring 52 and is fixedly connected to the support ring 53 .

[0038] In this embodiment, the lifting assembly 6 also includes a delay rod 63, the root of the connecting rod 61 is slidably connected to the column of the bracket 53, the top of the delay rod 63 is fixedly connected to the mixing cup 1, and the bottom of the delay rod 63 passes through the connecting rod 61 and is located below the connecting rod 61. When the mixing cup 1 is gradually bounced up by the elastic ring 51, the delay rod 63 will be pulled, but because the bottom of the delay rod 63 is a certain distance away from the connecting rod 61, in the initial process of the mixing cup 1 rising, this distance will gradually decrease until the delay rod 63 touches the connecting rod 61, and then the connecting rod 61 will start to be pulled upward. At this time, the shunt tube 22 will be moved out of the mouth of the centrifuge tube 3 through the upward movement of the fixed plate 62.

[0039] In this embodiment, a stirring hole 71 is provided on the top of the cover box 7 just above the mixing cup 1 , for inserting a stirring rod to stir the liquid in the mixing cup 1 .

[0040] Working principle: First, add crushed meat, eggs or milk into the mixing cup 1, then inject the detection liquid, and stir to mix these substances evenly in the mixing cup 1. At this time, the light passing through the mixing cup 1 is detected by the photosensitive film 423. The evenly mixed liquid will make the intensity of the light passing through the mixing cup 1 basically the same. Then, after confirming that the mixture is evenly mixed, the mixed liquid is discharged through the pipeline 21, and the mixed liquid enters the separation tube 23 through the pipeline 21. After the separation is completed, it is finally injected into the centrifuge tube 3.

[0041] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A food veterinary drug residue detection device, characterized in that: The invention comprises a mixing cup (1), a shunt pipe assembly (2) and a centrifuge tube (3), wherein the mixing cup (1) is mounted on the top of a cover box (7), the lower part of the mixing cup (1) is connected to the shunt pipe assembly (2) via a pipeline (21), a shunt pipe (22) is arranged below the shunt pipe assembly (2), and the shunt pipe (22) is connected to the centrifuge tube (3) below; An illumination component (4) is provided on the outer wall of the mixing cup (1), the illumination component (4) comprising a light emitting component (41) and a light receiving component (42), and the two components are symmetrically arranged on two sides of the mixing cup (1), the light emitting component (41) emits light through the mixing cup (1) and illuminates the light receiving component (42), so as to detect the light transmittance of the solution in the mixing cup (1); An elastic component (5) is provided below the mixing cup (1), wherein the elastic component (5) comprises an elastic ring (51), and the elastic ring (51) can produce a telescopic change when the weight of the mixing cup (1) changes; A lifting assembly (6) is provided on the outer side of the diverter tube assembly (2), and the lifting assembly (6) comprises a connecting rod (61) and a fixing plate (62). The connecting rod (61) is fixedly mounted on both sides of the fixing plate (62), and the connecting rod (61) can move up and down following the movement of the mixing cup (1) to insert the diverter tube (22) into or remove it from the centrifuge tube (3).

2. A food veterinary drug residue detection device according to claim 1, characterized in that: A clamping ring (11) is provided on the mouth and the outer side of the bottom of the mixing cup (1), and a liquid discharge port (12) is provided on the bottom of the mixing cup (1).

3. A food veterinary drug residue detection device according to claim 1, characterized in that: The shunt pipe assembly (2) further comprises a liquid distributing pipe (23) and a plugging piece (24); the liquid distributing pipe (23) is provided with a plurality of pieces which are arranged at equal intervals around the circumference of the pipeline (21); the top of the plugging piece (24) is fixedly mounted on the bottom of the mixing cup (1) via a bracket; the lower end of the plugging piece (24) is located at the bottom of the pipeline (21) when the detection liquid is arranged in the mixing cup (1) and can freely move up and down with the mixing cup (1); the shunt pipe (22) is located directly below the liquid distributing pipe (23).

4. A food veterinary drug residue detection device according to claim 1, characterized in that: The centrifuge tube (3) is installed in a centrifuge.

5. A food veterinary drug residue detection device according to claim 1, characterized in that: The light output assembly (41) comprises a guide rod (411), a clamping block (412) and a light source (413); a baffle is provided on the top of the guide rod (411) and is slidably mounted on the top plate of the cover box (6); the top of the clamping block (412) is fixedly connected to the bottom of the guide rod (411); the front end surface of the clamping block (412) abuts against the outer wall of the mixing cup (1); and the light sources (413) are arranged at equal intervals from top to bottom on the front end surface of the clamping block (412) and are separated from each other by a spacer.

6. A food veterinary drug residue detection device according to claim 1, characterized in that: The light receiving component (42) comprises a guide rod 2 (421), a clamping block 2 (422) and a photosensitive film (423). The top of the guide rod 2 (421) is provided with a baffle and is slidably mounted on the top plate of the cover box (6). The top of the clamping block 2 (422) is fixedly connected to the bottom of the guide rod 2 (421). The front end surface of the clamping block 2 (422) abuts against the outer wall of the mixing cup (1). The photosensitive films (423) are arranged at equal intervals from top to bottom on the front end surface of the clamping block 2 (422) and are separated from each other by spacers.

7. A food veterinary drug residue detection device according to claim 1, characterized in that: The elastic component (5) further comprises a support ring (52) and a bracket (53); the elastic ring (51) is installed in the support ring (52); the bracket (53) is fixedly installed on both sides of the support ring (52) and is fixedly connected to the support ring (53).

8. A food veterinary drug residue detection device according to claim 7, characterized in that: The lifting assembly (6) further comprises a delay rod (63), the root of the connecting rod (61) being slidably connected to the column of the bracket (53), the top of the delay rod (63) being fixedly connected to the mixing cup (1), and the bottom of the delay rod (63) passing through the connecting rod (61) and being located below the connecting rod (61).

9. A food veterinary drug residue detection device according to claim 7, characterized in that: The top of the cover box (7) is located directly above the mixing cup (1) and is provided with a stirring hole (71).

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