Pretreatment extraction device for pesticide residue detection

Abstract

The utility model discloses a pesticide residue detection pretreatment extraction device, which relates to the field of pesticide residue detection devices, and comprises a device base and an ultrasonic generator, the middle part of the upper end of the device base is provided with a beaker fixing structure, the beaker fixing structure comprises a limiting cover, the outer wall of the limiting cover is fixedly connected with a fixing frame, and the fixing frame is fixedly connected with the ultrasonic generator. A damping plate is fixedly connected to the inner wall of the limiting cover, and a limiting groove is formed in the middle of the upper end of the damping plate. According to the pesticide residue detection pretreatment extraction device, through the arrangement of a wiring limiting structure and a beaker fixing structure, a wiring used by an ultrasonic generator can be limited and fixed in the use process of the device, and the situation that the use of the device is easily affected due to the fact that the wiring is too long is avoided; the condition that a medicine container falls off from the device due to displacement of a sample container caused by vibration generated in the ultrasonic extraction process can be avoided, and external substances can be prevented from entering the container from the upper part of the container to influence the pesticide residue detection accuracy.

Description

Technical Field

[0001] The utility model relates to the field of pesticide residue detection devices, in particular to a pesticide residue detection pre-processing extraction device. Background Art

[0002] The pretreatment extraction device for pesticide residue detection is an important equipment for detecting pesticide residues in agricultural products. The function of this device is to extract pesticide residues from agricultural product samples, purify and concentrate them for subsequent detection and analysis. The existing pretreatment extraction device for pesticide residue detection is mainly an ultrasonic extraction device. The ultrasonic extraction device uses the cavitation effect of ultrasound to promote the leaching of target pesticides in the sample by the solvent, improve the extraction efficiency, and is suitable for the rapid pretreatment of solid and liquid samples.

[0003] However, the existing pesticide residue detection pretreatment extraction device has certain drawbacks when in use. First, the wiring used by the ultrasonic generator cannot be limited and fixed during the use of the device, and the wiring is too long to easily affect the use of the device. Second, vibration is easily generated during the ultrasonic extraction process, causing the sample container to move, which can easily cause the drug container to fall from the device.

[0004] Therefore, it is necessary to propose a pre-treatment extraction device for pesticide residue detection to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a pesticide residue detection pre-processing extraction device, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A pre-treatment extraction device for pesticide residue detection comprises a device base and an ultrasonic generator, wherein a beaker fixing structure is arranged in the middle of the upper end of the device base, the beaker fixing structure comprises a limiting cover, the outer wall of the limiting cover is fixedly connected with a fixing frame, the inner wall of the limiting cover is fixedly connected with a shock absorbing plate, a limiting groove is arranged in the middle of the upper end of the shock absorbing plate, the upper outer surface of the limiting cover is detachably connected with a connecting plug, and the upper outer surface of the connecting plug is fixedly connected with a protective cover.

[0008] Preferably, a height fixing rod is fixedly connected to the rear end outer surface of the device base, a height adjustment frame is detachably connected to the outer wall of the height fixing rod, and a connecting frame is fixedly connected to the front end outer surface of the height adjustment frame.

[0009] Preferably, an ultrasonic horn is detachably connected to an outer surface of an upper end of the connecting frame, an ultrasonic tool head is detachably connected to an outer surface of a lower end of the connecting frame, and a wiring limiting structure is provided on an outer surface of one side of the height adjustment frame.

[0010] Preferably, the wiring limiting structure includes a fixed card slot, an outer surface of one side of the fixed card slot is fixedly connected to an outer surface of one side of the height adjustment frame, an inner wall of the fixed card slot is detachably connected to a mounting card, and an outer surface of one side of the mounting card is fixedly connected to a wiring winding frame.

[0011] Preferably, a wiring card slot is provided on the inner wall of the wiring winding frame, a handle is fixedly connected to the outer surface of one side of the wiring winding frame, the front and rear ends of the wiring winding frame are fixedly connected to installation card slots, the inner wall of the installation card slot is detachably connected to an anti-detachment card, and the number of the anti-detachment card slots is two groups.

[0012] Preferably, the outer surface of the lower end of the limiting cover is detachably connected to the middle part of the upper end of the device base through a fixing frame, the number of the fixing frames is two groups, and the outer walls of the connecting plug and the protective cover are both provided with mounting grooves.

[0013] Compared with the prior art, the utility model provides a pre-treatment extraction device for pesticide residue detection, which has the following beneficial effects:

[0014] 1. A pesticide residue detection pre-treatment extraction device, through the wiring limiting structure, before the device is used, the wiring winding frame can be installed to one side of the fixed slot by installing the card, and then the wiring used by the ultrasonic generator is wound on the wiring winding frame, and finally the anti-dropping card is installed to the front and rear ends of the wiring winding frame through the installation slot to limit and fix the wound wiring. The wiring limiting structure can limit and fix the wiring used by the ultrasonic generator during the use of the device to avoid the wiring being too long and easily affecting the use of the device.

[0015] 2. This kind of pesticide residue detection pretreatment extraction device has a beaker fixing structure. When the device is in use, the limit cover can be installed to the upper end of the device base through the fixing frame, and then the container for storing the sample is placed in the limit groove in the middle of the shock-absorbing plate, and then the ultrasonic tool head is inserted into the connecting plug and the installation groove on the protective shell, and finally the protective cover is installed to the upper end of the limit cover through the connecting plug. The beaker fixing structure can prevent the vibration generated during the ultrasonic extraction process from causing the sample container to move, causing the drug container to fall from the device, and can also prevent foreign matter from entering the container from above the container to affect the accuracy of pesticide residue detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a partial structural schematic diagram of the utility model.

[0018] Figure 3 For this utility model Figure 1Schematic diagram of the structure of the center line limiting structure 7.

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the beaker fixing structure 3.

[0020] In the figure: 1. device base; 2. ultrasonic generator; 3. beaker fixing structure; 4. ultrasonic tool head; 5. connecting frame; 6. ultrasonic amplitude transformer; 7. wiring limit structure; 8. height fixing rod; 9. height adjustment frame; 71. anti-dropping clamp; 72. installation slot; 73. handle; 74. wiring winding frame; 75. installation clamp; 76. fixing slot; 31. limit slot; 32. shock absorbing plate; 33. fixing frame; 34. limit cover; 35. connecting plug; 36. protective cover. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a pre-treatment extraction device for pesticide residue detection includes a device base 1 and an ultrasonic generator 2. A beaker fixing structure 3 is provided in the middle of the upper end of the device base 1. The beaker fixing structure 3 includes a limiting cover 34. The outer wall of the limiting cover 34 is fixedly connected to a fixing frame 33. The inner wall of the limiting cover 34 is fixedly connected to a shock absorbing plate 32. A limiting groove 31 is provided in the middle of the upper end of the shock absorbing plate 32. The upper outer surface of the limiting cover 34 is detachably connected to a connecting plug 35. The upper outer surface of the connecting plug 35 is fixedly connected to a protective cover 36.

[0023] like Figure 1 , Figure 2 As shown, a height fixing rod 8 is fixedly connected to the rear end outer surface of the device base 1, a height adjustment frame 9 is detachably connected to the outer wall of the height fixing rod 8, and a connecting frame 5 is fixedly connected to the front end outer surface of the height adjustment frame 9.

[0024] like Figure 1 , Figure 2 As shown, the upper outer surface of the connecting frame 5 is detachably connected to the ultrasonic horn 6, the lower outer surface of the connecting frame 5 is detachably connected to the ultrasonic tool head 4, and the outer surface of one side of the height adjustment frame 9 is provided with a wiring limit structure 7.

[0025] like Figure 1 , Figure 3 As shown, the wiring limiting structure 7 includes a fixed card slot 76, an outer surface of one side of the fixed card slot 76 is fixedly connected to an outer surface of one side of the height adjustment frame 9, an inner wall of the fixed card slot 76 is detachably connected to a mounting card 75, and an outer surface of one side of the mounting card 75 is fixedly connected to a wiring winding frame 74.

[0026] like Figure 1 , Figure 3 As shown, a wiring card slot is provided on the inner wall of the wiring winding frame 74, a handle 73 is fixedly connected to the outer surface of one side of the wiring winding frame 74, and installation card slots 72 are fixedly connected to the front and rear ends of the wiring winding frame 74. The inner wall of the installation card slot 72 is detachably connected with an anti-detachment card 71, and the number of the anti-detachment card 71 is two groups.

[0027] like Figure 1 , Figure 4 As shown, the lower outer surface of the limiting cover 34 is detachably connected to the upper middle part of the device base 1 through a fixing frame 33, the number of the fixing frame 33 is two groups, and the outer walls of the connecting plug 35 and the protective cover 36 are both provided with installation grooves.

[0028] How it works

[0029] The utility model is a pre-treatment extraction device for detecting pesticide residues. When in use, the user places the sample container inside the beaker fixing structure 3, adjusts the height of the height adjustment frame 9 to insert the ultrasonic tool head 4 into the sample container, and utilizes the cavitation effect of the ultrasonic wave to promote the leaching of the target pesticide in the sample by the solvent, thereby improving the extraction efficiency. The wiring limiting structure 7 provided by the utility model can install the wiring winding frame 74 to one side of the fixed card slot 76 by installing the card member 75 before the device is used, and then the wiring used by the ultrasonic generator is wound on the wiring winding frame 74, and finally the anti-dropping card member 71 is installed to the front and rear ends of the wiring winding frame 74 by installing the card slot 72, so as to limit and fix the wound wiring. The wiring limiting structure 7 can be used during the use of the device. The wiring used by the ultrasonic generator is limited and fixed to avoid the wiring being too long and easily affecting the use of the device. The beaker fixing structure 3 is set up. When the device is in use, the limiting cover 34 can be installed to the upper end of the device base 1 through the fixing frame 33, and then the container for storing the sample is placed in the limiting groove 31 in the middle of the shock-absorbing plate 32, and then the ultrasonic tool head 4 is inserted into the connecting plug 35 and the mounting groove on the protective shell 36, and finally the protective cover 36 is installed to the upper end of the limiting cover 34 through the connecting plug 35. The beaker fixing structure 3 can prevent the vibration generated during the ultrasonic extraction process from causing the sample container to be displaced, causing the drug container to fall from the device, and can also prevent foreign matter from entering the container from above the container to affect the accuracy of pesticide residue detection.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pesticide residue detection pre-treatment extraction device, comprising a device base (1) and an ultrasonic generator (2), characterized in that: A beaker fixing structure (3) is provided at the middle of the upper end of the device base (1), and the beaker fixing structure (3) comprises a limiting cover (34), the outer wall of the limiting cover (34) is fixedly connected to a fixing frame (33), the inner wall of the limiting cover (34) is fixedly connected to a shock absorbing plate (32), a limiting groove (31) is provided at the middle of the upper end of the shock absorbing plate (32), the upper outer surface of the limiting cover (34) is detachably connected to a connecting plug (35), and the upper outer surface of the connecting plug (35) is fixedly connected to a protective cover (36).

2. The pesticide residue detection pre-processing extraction device according to claim 1, characterized in that: A height fixing rod (8) is fixedly connected to the rear end outer surface of the device base (1), a height adjustment frame (9) is detachably connected to the outer wall of the height fixing rod (8), and a connecting frame (5) is fixedly connected to the front end outer surface of the height adjustment frame (9).

3. The pesticide residue detection pre-processing extraction device according to claim 2, characterized in that: The upper outer surface of the connecting frame (5) is detachably connected to an ultrasonic horn (6), the lower outer surface of the connecting frame (5) is detachably connected to an ultrasonic tool head (4), and a wiring limit structure (7) is provided on one side outer surface of the height adjustment frame (9).

4. The pesticide residue detection pre-processing extraction device according to claim 3, characterized in that: The wiring limiting structure (7) comprises a fixed card slot (76), one side outer surface of the fixed card slot (76) is fixedly connected to one side outer surface of the height adjustment frame (9), the inner wall of the fixed card slot (76) is detachably connected to a mounting card (75), and one side outer surface of the mounting card (75) is fixedly connected to a wiring winding frame (74).

5. The pesticide residue detection pre-processing extraction device according to claim 4, characterized in that: The inner wall of the wiring winding frame (74) is provided with a wiring card slot, a handle (73) is fixedly connected to the outer surface of one side of the wiring winding frame (74), the front and rear ends of the wiring winding frame (74) are fixedly connected to installation card slots (72), the inner wall of the installation card slot (72) is detachably connected to an anti-dropping card component (71), and the number of the anti-dropping card components (71) is two groups.

6. The pesticide residue detection pre-processing extraction device according to claim 5, characterized in that: The outer surface of the lower end of the limiting cover (34) is detachably connected to the middle part of the upper end of the device base (1) through a fixing frame (33), and the number of the fixing frames (33) is two sets. The outer walls of the connecting plug (35) and the protective cover (36) are both provided with mounting grooves.

Images