Sampling device for aquatic product detection

Abstract

The utility model belongs to the technical field of aquatic product detection, and particularly relates to a sampling device for aquatic product detection, which comprises a plastic test tube, a plastic sealing film, a lifting rod and a grate are sequentially arranged in the plastic test tube from top to bottom, the lower edge of the plastic sealing film is adhered to the inner edge of the plastic test tube, and the central axis of the lifting rod coincides with the central axis of the plastic test tube. The middle of the upper surface of the grate is connected to the lower end of the lifting rod, the lower end of the plastic test tube is fixedly communicated with a hard plastic tube, one end, far away from the plastic test tube, of the hard plastic tube is closed, an annular step groove is formed in the inner wall of the plastic test tube, and the inner wall of the step groove is attached to the lower surface of the grate; a flange is integrally installed on one side of the plastic sealing film and extends out of the plastic test tube, and a tying belt is fixed between the lower end of the lifting rod and the upper surface of the grate. The disposable tool is used for sampling, extra refrigeration is not needed in the delivery process, and the sample delivery cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of aquatic product detection, and specifically relates to a sampling device for aquatic product detection. Background Art

[0002] Before aquatic products enter the market, appearance detection, chemical detection, and microbial detection are required. Chemical detection includes pesticide residue detection, veterinary drug residue detection, heavy metal residue detection, and nutritional component detection. Microbial detection includes total colony count detection and specific pathogen detection. These detections require sampling on live aquatic products and sending them to a laboratory for determination.

[0003] Aquatic product individuals are generally large, and it is relatively difficult to tear them by hand for sampling. This sampling method places the aquatic product individuals on a sampling table and uses multiple cutting blades to divide them into pieces, which are used as samples and mixed with the detection liquid by crushing, and then poured into a test tube slot for detection together.

[0004] There is a large stock of market aquatic products, and on-site sampling is generally required. The sampling table is large and not easy to carry. After the live aquatic products are divided into sample pieces and taken away, the sample pieces are prone to nutrient loss and deterioration when arriving at the laboratory, so the sample pieces need to be refrigerated additionally during transportation, which is not conducive to reducing the transportation cost of the sample pieces. Therefore, we propose a sampling device for aquatic product detection. Content of the Utility Model

[0005] The purpose of this utility model is to provide a sampling device for aquatic product detection, which is composed of disposable utensils for sampling and does not require additional refrigeration during transportation, so as to reduce the transportation cost of samples.

[0006] The technical solution adopted by this utility model is specifically as follows:

[0007] A sampling device for aquatic product detection comprises a plastic test tube, wherein a plastic sealing film, a lifting rod and a grate are sequentially arranged inside the plastic test tube from top to bottom, the lower edge of the plastic sealing film is bonded to the inner edge of the plastic test tube, the central axis of the lifting rod coincides with the central axis of the plastic test tube, the grate is in the shape of a disc with honeycomb holes on the surface, the middle of the upper surface of the grate is connected to the lower end of the lifting rod, the lower end of the plastic test tube is connected and fixed with a hard plastic tube, and the end of the hard plastic tube away from the plastic test tube is in a closed state. Before sampling, several plastic test tubes are taken, a quantitative detection solvent is added to each plastic test tube, the grate and the lifting rod are inserted in sequence, and then the plastic sealing film is adhered to the opening of the plastic test tube for sealing to prevent the detection solvent from spilling out. It is convenient to carry to markets and other areas where aquatic products are sold. When taking samples, use a sampling cutter to cut the live aquatic products into small pieces, tear off the plastic films one by one, and put the small pieces into a specified number of plastic test tubes according to the set sample volume, using the size that just fits into the plastic test tubes as the standard. These small pieces fall onto the grate and are immersed in the detection solvent, so that the small pieces of blood and tissue fluid are dissolved in the detection solvent. After a certain period of time, pull the lifting rod to pull out the grate, drive the small pieces out of the plastic test tube, and discard the small pieces, lifting rod and grate. Then, seal the plastic test tubes. Each plastic test tube has a good degree of isolation and is used as a disposable tool for sampling. The blood and tissue fluid are sealed and retained as samples for inspection. No additional refrigeration is required during delivery to reduce the cost of sample delivery.

[0008] The inner wall of the plastic test tube is provided with an annular step groove, the inner wall of the step groove is close to the lower surface of the grate, and the step groove is used to support the grate, so that the grate can be kept horizontal in the plastic test tube, and the small piece can be stably supported to be suspended in the air to prevent the small piece from falling under the grate.

[0009] A flange is integrally installed on one side of the plastic sealing film, and the flange extends to the outside of the plastic test tube. When opening the plastic test tube, the flange can be pinched with two fingers and pulled hard to tear off the plastic sealing film, which makes the operation easier.

[0010] A lacing strap is fixed between the lower end of the lifting rod and the upper surface of the grate. The lifting rod can swing relative to the lacing strap and has a certain degree of freedom, so that the lifting rod can be held by hand to squeeze the small pieces on the grate.

[0011] A disc-shaped pressing plate is also fixed to the lower end of the lifting rod, and a lacing runs through the middle of the pressing plate. Before sampling, the pressing plate falls on the grate, squeezing the lacing to support the lifting rod vertically. When sampling, the lifting rod can be pulled upward to raise the pressing plate, and a small piece can be placed in the gap between the pressing plate and the grate, and then placed in a plastic test tube. The lifting rod is pushed to drive the pressing plate to cooperate with the grate to squeeze the small piece, squeezing out as much blood and tissue fluid as possible.

[0012] The outside of the plastic test tube is provided with a rubber cap, and the rubber cap port is adapted to the opening of the plastic test tube. After sampling is completed, the rubber cap can be sleeved on the outside of the opening of the plastic test tube to quickly complete the packaging of the sample.

[0013] The technical effects achieved by this utility model are:

[0014] The present invention is a practical sampling device for testing aquatic products. Before sampling, several plastic test tubes are taken, quantitative testing solvent is added to each plastic test tube, a grate and a lifting rod are inserted in sequence, and then a plastic sealing film is pasted on the opening of the plastic test tube to seal it, so as to prevent the testing solvent from spilling out, and it is convenient to carry it to the market where aquatic products are sold. When sampling, a sampling cutter is used to cut the living aquatic products into small pieces, and the plastic sealing films are torn off one by one. According to the set sample volume, small pieces are loaded into the specified number of plastic test tubes, and the sample volume is just The small pieces are dropped onto the grate and immersed in the detection solvent, so that the small pieces of blood and tissue fluid are dissolved in the detection solvent. After a certain period of time, the grate is pulled out by pulling the lifting rod, driving the small pieces out of the plastic test tube, and discarding the small pieces, lifting rod and grate. Then, the plastic test tube is sealed. Each plastic test tube has a good degree of isolation and is used as a disposable tool for sampling. The blood and tissue fluid are sealed and retained as samples for testing. No additional refrigeration is required during delivery to reduce the cost of sample delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the practical sampling device;

[0016] Figure 2 It is a cross-sectional view of the practical sampling device;

[0017] Figure 3 It is a cross-sectional view of the practical plastic test tube;

[0018] Figure 4 It is a front view of the practical lifting rod.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Plastic test tube; 2. Plastic sealing film; 3. Pull rod; 4. Grate; 5. Hard plastic tube; 6. Step groove; 7. Flange; 8. Tie; 9. Press plate; 10. Rubber cap. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] like Figures 1-4As shown, a sampling device for aquatic product detection comprises a plastic test tube 1, wherein a plastic sealing film 2, a lifting rod 3 and a grate 4 are sequentially arranged inside the plastic test tube 1 from top to bottom, the lower edge of the plastic sealing film 2 is bonded to the inner edge of the plastic test tube 1, the central axis of the lifting rod 3 coincides with the central axis of the plastic test tube 1, the grate 4 is in the shape of a disc with honeycomb holes on the surface, the middle of the upper surface of the grate 4 is connected to the lower end of the lifting rod 3, the lower end of the plastic test tube 1 is connected and fixed with a hard plastic tube 5, and the end of the hard plastic tube 5 away from the plastic test tube 1 is closed, a test tube rack, a sampling cutter, a number of cleaning cloths and alcohol are prepared in advance, before sampling, a number of plastic test tubes 1 are taken, a quantitative detection solvent is added to each plastic test tube 1, the grate 4 and the lifting rod 3 are inserted in turn, and then the plastic sealing film 2 is adhered to the opening of the plastic test tube 1 for sealing to prevent the detection solvent from spilling out, so as to facilitate carrying to the aquatic product sales site. In areas such as markets for products, when sampling, use a sampling cutter to cut the live aquatic products into small pieces, tear off the plastic sealing film 2 one by one, and put the small pieces into a specified number of plastic test tubes 1 according to the set sample volume, with the size that just fits into the plastic test tube 1 as the standard. These small pieces fall on the grate 4 and are immersed in the detection solvent, so that the small pieces of blood and tissue fluid are dissolved in the detection solvent. After a certain period of time, pull the lifting rod 3 to pull out the grate 4, drive the small pieces out of the plastic test tube 1, and discard the small pieces, the lifting rod 3 and the grate 4. Then, seal the plastic test tube 1. Each plastic test tube 1 has a good isolation degree and is composed of a disposable tool for sampling. The blood and tissue fluid are encapsulated as samples for retention and inspection, and are uniformly distributed to the laboratory for inspection. No additional refrigeration is required during distribution to reduce the sample distribution cost. Finally, break or cut the hard plastic tube 5 to flow out the sample and the detection solvent.

[0023] The lifting rod 3 and the grate 4 can be made of hard plastic or stainless steel, which are small in size, require less material and have lower cost.

[0024] The detection solvent is a prior art and is not shown in the figure. Its liquid level in the plastic test tube 1 should be higher than the grate 4 so that the small piece can be immersed. The lifting rod 3 can also be held by hand to squeeze the small piece to squeeze out the blood and tissue fluid in the small piece as much as possible, and then the small piece is discarded. In this way, liquid samples that may contain pesticides, veterinary drugs, bacterial colonies, nutrients and heavy metals are collected.

[0025] like Figure 2 and Figure 3 As shown, the inner wall of the plastic test tube 1 is provided with an annular step groove 6, the inner wall of the step groove 6 is in contact with the lower surface of the grate 4, and the step groove 6 is used to support the grate 4, so that the grate 4 can remain horizontal in the plastic test tube 1, and can stably support the small pieces to be suspended in the air to prevent the small pieces from falling under the grate 4.

[0026] like Figure 1 and Figure 2As shown, a flange 7 is integrally installed on one side of the plastic sealing film 2. The flange 7 and the plastic sealing film 2 are made of the same material. The flange 7 extends to the outside of the plastic test tube 1. When opening the plastic test tube 1, the flange 7 can be pinched with two fingers and pulled hard to tear open the plastic sealing film 2, which makes the operation easier.

[0027] like Figure 2 and Figure 4 As shown, a tie 8 is fixed between the lower end of the lifting rod 3 and the upper surface of the grate 4. The lifting rod 3 can swing relative to the tie 8 and has a certain degree of freedom, which makes it convenient to hold the lifting rod 3 to squeeze the small pieces on the grate 4.

[0028] like Figure 2 and Figure 4 As shown, a disc-shaped pressing plate 9 is fixed to the lower end of the lifting rod 3, and a plurality of honeycomb holes are opened on the pressing plate 9. The middle of the pressing plate 9 is penetrated by a lacing 8. Before sampling, the pressing plate 9 falls on the grate 4, squeezing the lacing 8 to support the lifting rod 3 vertically. When sampling, the lifting rod 3 can be pulled upward to raise the pressing plate 9, and a small piece can be placed in the gap between the pressing plate 9 and the grate 4, and then put into the plastic test tube 1. The lifting rod 3 is pushed to drive the pressing plate 9 to cooperate with the grate 4 to squeeze the small piece, so as to squeeze out as much blood and tissue fluid as possible.

[0029] like Figure 1 and Figure 2 As shown, a rubber cap 10 is provided on the outside of the plastic test tube 1, and the port of the rubber cap 10 is adapted to the opening of the plastic test tube 1. After sampling, the rubber cap 10 can be put on the outside of the opening of the plastic test tube 1 to quickly complete the packaging of the sample. Moreover, the entire disposable device is mostly made of plastic material, which has a low cost and is discarded after use. There is no cross infection between each other, and the isolation is good.

[0030] The working principle of the utility model is as follows: before sampling, several plastic test tubes 1 are taken, a quantitative detection solvent is added to each plastic test tube 1, a grate 4 and a lifting rod 3 are inserted in sequence, and then a plastic sealing film 2 is adhered to the opening of the plastic test tube 1 for sealing, so as to prevent the detection solvent from spilling out, and to facilitate carrying to the market where aquatic products are sold, etc. When sampling, a sampling cutter is used to cut the living aquatic product into small pieces, and the plastic sealing film 2 is torn off one by one. According to the set sample volume, small pieces are loaded into a specified number of plastic test tubes 1, and the size that can just fit into the plastic test tube 1 is used as the standard. These small pieces fall onto the grate 4 and are immersed in the detection solvent, so that the small pieces of blood and tissue fluid are dissolved in the detection solvent.

[0031] After a certain period of time, the lifting rod 3 is pulled out to pull out the grate 4, so that the small pieces are separated from the plastic test tube 1, and the small pieces, the lifting rod 3 and the grate 4 are discarded.

[0032] Then, seal the plastic test tube 1. Each plastic test tube 1 has good isolation and is used as a disposable tool for sampling. The blood and tissue fluid are encapsulated and retained as samples for inspection. No additional refrigeration is required during distribution, thus reducing the sample distribution cost. Finally, break or cut off the hard plastic tube 5, and the sample and the detection solvent can flow out.

[0033] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special description and limitation.

Claims

1. A sampling device for aquatic product detection, comprising a plastic test tube (1), characterized in that: Inside the plastic test tube (1), a plastic sealing film (2), a lifting rod (3), and a sieve (4) are sequentially arranged from top to bottom. The lower edge of the plastic sealing film (2) is adhered to the inner edge of the plastic test tube (1). The central axis of the lifting rod (3) coincides with the central axis of the plastic test tube (1). The sieve (4) is in the shape of a disc with honeycomb holes on its surface. The middle of the upper surface of the sieve (4) is connected to the lower end of the lifting rod (3). The lower end of the plastic test tube (1) is connected and fixed with a hard plastic tube (5), and one end of the hard plastic tube (5) far from the plastic test tube (1) is closed.

2. The sampling device for aquatic product detection according to claim 1, characterized in that: An annular step groove (6) is formed on the inner wall of the plastic test tube (1), and the inner wall of the step groove (6) is attached to the lower surface of the sieve (4).

3. The sampling device for aquatic product detection according to claim 1, characterized in that: A flange (7) is integrally installed on one side of the plastic sealing film (2), and the flange (7) extends to the outside of the plastic test tube (1).

4. The sampling device for aquatic product detection according to claim 1, wherein: A tie belt (8) is fixed between the lower end of the lifting rod (3) and the middle of the upper surface of the sieve (4).

5. The sampling device for aquatic product detection according to claim 4, characterized in that: A disc-shaped pressing plate (9) is further fixed at the lower end of the lifting rod (3), and the middle of the pressing plate (9) is penetrated by the tie belt (8).

6. The sampling device for aquatic product detection according to claim 1, characterized in that: A rubber cap (10) is arranged outside the plastic test tube (1), and the port of the rubber cap (10) is adapted to the opening of the plastic test tube (1).

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