Efficient extraction device for detecting pesticide residues of agricultural products

Abstract

The efficient extraction device comprises a nitrogen blowing concentrator, a support, a nitrogen needle set, an extraction tank, a uniform heating module, heat dissipation holes and a control module, the support is installed on the rear portion of the top end of the nitrogen blowing concentrator, the nitrogen needle set is installed on the top of the support, the extraction tank is formed in the middle of the top end of the nitrogen blowing concentrator, and the uniform heating module is installed on the top of the nitrogen blowing concentrator. The uniform heating module is installed in the extraction tank, the heat dissipation hole is formed in the left end of the nitrogen blowing instrument, and the control module is installed at the front end of the nitrogen blowing instrument and connected with the uniform heating module. The utility model solves the problem that when a test tube is placed in the heating module of the nitrogen blowing concentrator, the test tube cannot be completely matched and attached with the heating groove, so that the test tube is not uniformly heated during heating, and the detection result of pesticide residue extraction is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pesticide residue detection, especially to a high -efficient extraction device for pesticide residue detection of agricultural products. BACKGROUND

[0002] The nitrogen blowing instrument is a key equipment for sample pretreatment in the laboratory, and is particularly suitable for efficient extraction and concentration in pesticide residue detection of agricultural products. It automatically completes the concentration and drying of multiple tube samples by precisely controlling the temperature and gas flow, reduces human error, and improves experimental accuracy. Its characteristics include high automation, precise temperature control, strong compatibility, and good safety performance, which helps to realize rapid and accurate pesticide residue analysis. Modern nitrogen blowing instruments also pay attention to energy saving and environmental protection, improve heating efficiency and reduce energy consumption.

[0003] When placing the test tube in the heating module of the nitrogen blowing instrument, the test tube will not completely fit the heating tank, so uneven heating of the test tube will occur during heating, affecting the detection results of pesticide residue extraction. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of high-efficiency extraction devices for pesticide residue detection of agricultural products, to solve above-mentioned technical problem.

[0005] To achieve the above object, the utility model uses the following technical scheme: a kind of high-efficiency extraction device for pesticide residue detection of agricultural products, including nitrogen blowing instrument, support, nitrogen gas needle group, extraction tank, uniform heating module, heat dissipation hole, control module, the support is installed at the top rear of nitrogen blowing instrument, the nitrogen gas needle group is installed in support top, the extraction tank is opened in the top middle of nitrogen blowing instrument, the uniform heating module is installed in extraction tank, the heat dissipation hole is opened in the left end of nitrogen blowing instrument, the control module is installed in the front end of nitrogen blowing instrument, and control module is connected with uniform heating module.

[0006] On the basis of above technical scheme, the uniform heating module includes electric heating aluminum block, test tube groove, iron sand groove, iron sand, shell, front electromagnet, rear electromagnet, the electric heating aluminum block is connected with control module by extraction tank, the test tube groove is distributed at the top rear of electric heating aluminum block, the iron sand groove is opened in the front end of test tube groove side, the iron sand is placed in test tube groove and iron sand groove, the shell is fixed at the front and rear ends of electric heating aluminum block respectively, the front electromagnet is installed at the front end of electric heating aluminum block by front side shell, the rear electromagnet is installed at the rear end of electric heating aluminum block by rear side shell, and the front electromagnet and rear electromagnet are connected with control module.

[0007] On the basis of above technical scheme, the front electromagnet and rear electromagnet cooperate to control the movement of iron sand in test tube groove and iron sand groove.

[0008] Compared with the prior art, the utility model has the advantages that: the utility model discloses an iron sand groove is formed in the test tube groove of the heating module of the nitrogen blowing instrument, and electromagnets are installed before and behind the heating module to control the filling of the iron sand in the gap after the iron sand is put into the test tube, so that the test tube is heated evenly as much as possible, and the accuracy of the detection result of pesticide residue extraction is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the appearance structure schematic diagram of the utility model.

[0010] Fig. 2 It is the even heating module schematic diagram of the utility model.

[0011] Fig. 3 It is the even heating module filling state schematic diagram of the utility model.

[0012] In the drawing: 1, nitrogen blowing instrument, 2, support, 3, nitrogen needle group, 4, extraction groove, 5, even heating module, 6, heat dissipation hole, 7, control module, 8, electric heating aluminum block, 9, test tube groove, 10, iron sand groove, 11, iron sand, 12, shell, 13, front electromagnet, 14, rear electromagnet. DETAILED DESCRIPTION

[0013] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0014] As Figs. 1 to 3 Shown, a kind of for agricultural product pesticide residue detection's high-efficiency extraction device, including nitrogen blowing instrument 1, support 2, nitrogen needle group 3, extraction groove 4, even heating module 5, heat dissipation hole 6, control module 7, the nitrogen blowing instrument 1 top end rear portion is installed support 2, the nitrogen needle group 3 is installed in support 2 top, the extraction groove 4 is opened in nitrogen blowing instrument 1 top end middle part, the even heating module 5 is installed in extraction groove 4, the heat dissipation hole 6 is opened in nitrogen blowing instrument 1 left end, the control module 7 is installed in nitrogen blowing instrument 1 front end, and control module 7 is connected with even heating module 5.

[0015] The even heating module 5 includes electric heating aluminum block 8, test tube groove 9, iron sand groove 10, iron sand 11, shell 12, front electromagnet 13, rear electromagnet 14, the electric heating aluminum block 8 is connected with control module 7 by extraction groove 4, the test tube groove 9 is distributed in electric heating aluminum block 8 top end rear portion, the iron sand groove 10 is opened in test tube groove 9 side end front portion, the iron sand 11 is placed in test tube groove 9 and iron sand groove 10, the shell 12 is fixed in electric heating aluminum block 8 front and rear two ends respectively, the front electromagnet 13 is installed in electric heating aluminum block 8 front end by front side shell 12, the rear electromagnet 14 is installed in electric heating aluminum block 8 rear end by rear side shell 12, and front electromagnet 13 and rear electromagnet 14 are connected with control module 7.

[0016] The front electromagnet 13 and the rear electromagnet 14 cooperate to control the movement of the iron sand 11 in the test tube groove 9 and the iron sand groove 10.

[0017] The working principle of the utility model is as follows: before placing the test tube, the control module 7 is started to make the front electromagnet 13 generate magnetic force, the internal iron sand 11 is adsorbed and accumulated in the iron sand groove 10 through the electric heating aluminum block 8, the test tube is placed in the test tube groove 9, the control module 7 is closed to start the front electromagnet 14 to generate magnetic force, the internal iron sand 11 is adsorbed and filled between the test tube and the heating aluminum block 8 in the test tube groove 9 through the electric heating aluminum block 8, the electric heating aluminum block 8 is wrapped by the iron sand 11 to make the test tube heat evenly as much as possible, and the accuracy of the detection result of pesticide residue extraction is guaranteed. The nitrogen needle group 3 is inserted into the test tube through the support 2, nitrogen blowing is carried out, and the extraction of the sample is realized.

[0018] The above is the preferred embodiment of the utility model, and for ordinary skilled persons in the art, according to the teaching of the utility model, the change, modification, replacement and transformation of the embodiment without departing from the principle and spirit of the utility model still fall within the protection scope of the utility model.

Claims

1. A high-efficiency extraction device for detecting pesticide residues in agricultural products, comprising a nitrogen blower (1), a support (2), a nitrogen needle assembly (3), an extraction tank (4), a uniform heating module (5), heat dissipation holes (6), and a control module (7), characterized in that: The nitrogen blowing instrument (1) top rear mounting bracket (2), the nitrogen needle group (3) is installed in the bracket (2) top, the extraction tank (4) opens in the nitrogen blowing instrument (1) top middle, the uniform heating module (5) is installed in the extraction tank (4), the heat dissipation hole (6) opens in the left end of the nitrogen blowing instrument (1), the control module (7) is installed in the front end of the nitrogen blowing instrument (1), and the control module (7) is connected with the uniform heating module (5). 2.The high-efficiency extraction device for pesticide residue detection of agricultural products according to claim 1, characterized in that: The uniform heating module (5) includes an electric heating aluminum block (8), a test tube groove (9), an iron sand groove (10), iron sand (11), a shell (12), a front electromagnet (13), and a rear electromagnet (14). The electric heating aluminum block (8) is connected with the control module (7) through the extraction tank (4). The test tube groove (9) is distributed at the top rear of the electric heating aluminum block (8). The iron sand groove (10) is opened at the front side of the test tube groove (9). The iron sand (11) is placed in the test tube groove (9) and the iron sand groove (10). The shell (12) is fixed at the front and rear ends of the electric heating aluminum block (8). The front electromagnet (13) is installed at the front end of the electric heating aluminum block (8) through the front shell (12). The rear electromagnet (14) is installed at the rear end of the electric heating aluminum block (8) through the rear shell (12). The front electromagnet (13) and the rear electromagnet (14) are connected with the control module (7). 3.The high-efficiency extraction device for pesticide residue detection of agricultural products according to claim 2, characterized in that: The front electromagnet (13) and the rear electromagnet (14) cooperate to control the movement of the iron sand (11) in the test tube groove (9) and the iron sand groove (10).

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