Liquid sampling assembly for pesticide detection

Abstract

The utility model relates to the technical field of pesticide detection, in particular to a liquid sampling assembly for pesticide detection, which comprises a sampling barrel, a pull rod is inserted into the top of the sampling barrel, a sampling opening is formed in the bottom of the sampling barrel, a filtering structure is arranged at the bottom of the sampling barrel, and mounting structures are arranged on the surfaces of the two sides of the sampling barrel. The mounting structure comprises a fixing block, an inserting rod is inserted into the fixing block, a limiting plate is fixedly connected to the surface of the inserting rod, a clamping block is fixedly connected to the surface of the inserting rod, a quantitative structure is fixedly connected to the top of the sampling barrel, the quantitative structure comprises an adjusting rod, and a knob is fixedly connected to the top of the adjusting rod. The filter structure and the mounting structure are arranged, so that the filter structure is convenient to mount and dismount, the filter structure is prevented from being blocked to influence the use effect, the quantitative structure is arranged, quantitative sampling is realized, and the use is relatively convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pesticide detection, and specifically relates to a liquid sampling assembly for pesticide detection. BACKGROUND

[0002] The development of agricultural industrialization makes the production of agricultural products more and more dependent on exogenous substances such as pesticides, antibiotics and hormones. The use amount of pesticides in China is high, and the unreasonable use of these substances will lead to excessive pesticide residues in agricultural products, affect the food safety of consumers, and even cause poisoning and death of consumers, so it is necessary to use a sampler to detect pesticide residues in agricultural products.

[0003] The existing liquid sampling assembly is provided with a filter screen at the bottom, but the filter screen is not easy to disassemble, is easy to block after long-term use, affects the subsequent use effect, and the existing liquid sampling assembly cannot realize quantitative sampling, and is inconvenient to use. Therefore, we provide a liquid sampling assembly for pesticide detection. UTILITY MODEL CONTENTS

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a liquid sampling assembly for pesticide detection, so as to solve the problems of the existing liquid sampling assembly that the filter screen is not easy to disassemble, is easy to block after long-term use, affects the subsequent use effect, and the existing liquid sampling assembly cannot realize quantitative sampling and is inconvenient to use.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a liquid sampling assembly for pesticide detection, comprising a sampling cylinder, a pull rod is inserted at the top of the sampling cylinder, a sampling port is arranged at the bottom of the sampling cylinder, a filter structure is arranged at the bottom of the sampling cylinder, the filter structure comprises a protection ring, a bottom plate is fixedly connected to the inner surface of the bottom of the protection ring, a filter hole is arranged at the center of the bottom plate, a positioning ring is fixedly connected to the surface of the bottom plate, a plug-in plate is fixedly connected to the top of the protection ring, a clamping groove is arranged on the surface of the plug-in plate, a sliding groove is arranged at the top of the clamping groove, an installation structure is arranged on the surface of the sampling cylinder, the installation structure comprises a fixed block, a plug-in rod is inserted into the fixed block, a button is fixedly connected to one side of the plug-in rod, a limiting plate is fixedly connected to the surface of the plug-in rod, springs are fixedly connected to both ends of the limiting plate, a clamping block is fixedly connected to the surface of the plug-in rod, a quantitative structure is fixedly connected to the top of the sampling cylinder, the quantitative structure comprises an adjusting rod, and a rotary knob is fixedly connected to the top of the adjusting rod.

[0006] Preferably, the inner diameter of the positioning ring is equal to the diameter of the filter hole, an annular groove is arranged at the bottom of the sampling port, and the positioning ring is inserted into the annular groove.

[0007] Preferably, the surface of the fixed block is provided with a square groove one, the plug-in plate is inserted into the square groove one, one side of the fixed block is provided with a circular groove one, both sides of the plug-in rod are inserted into the circular groove one, one side of the fixed block close to the pull rod is provided with a circular groove two, the diameter of the circular groove two is equal to the diameter of the clamping block.

[0008] Preferably, the two side surfaces of the sampling cylinder are provided with a circular groove three, the diameter of the plug-in rod is equal to the diameter of the circular groove three.

[0009] Preferably, the inside of the fixed block is provided with a square groove two, the limiting plate is slidingly connected into the square groove two, and both ends of the spring are fixedly connected with the inner wall of the square groove two and the surface of the limiting plate.

[0010] Preferably, the diameter of the clamping groove is equal to the diameter of the clamping block, and the plug-in rod is slidingly connected into the sliding groove.

[0011] Preferably, the surface of the adjusting rod is provided with threads, the top of the sampling cylinder is provided with a threaded groove, the adjusting rod is slidingly connected into the threaded groove through threads, and the bottom of the knob is in contact with the top of the pull rod.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The liquid sampling assembly for pesticide detection is provided with a filtering structure and a mounting structure, the plug-in rod is moved by pressing the button, the clamping block is moved into the circular groove two from the square groove one, the sliding groove on the top of the plug-in plate of the protection ring is inserted into the square groove one on the fixed block after corresponding to the plug-in rod, the positioning ring is inserted into the annular groove at the bottom of the sampling port, the plug-in rod is moved from the sliding groove to the clamping groove, the button is released, the limiting plate is pushed under the action of the spring, the plug-in rod is moved outward, the clamping block is moved from the circular groove two into the clamping groove, the clamping block is clamped with the clamping groove, the position of the plug-in plate is fixed, the mounting of the filtering structure is completed, when disassembling, the clamping block is moved out from the clamping groove into the circular groove two, the clamping block and the clamping groove are not clamped with each other, the plug-in plate can be taken out from the fixed block, the filtering structure is disassembled and replaced, the mounting and dismounting of the filtering structure are facilitated, and the use effect is not affected by the blockage of the filtering structure.

[0014] 2、The liquid sampling assembly for pesticide detection is provided with a quantitative structure, the adjusting rod is rotated by rotating the knob, the position of the knob is adjusted through the cooperation of the adjusting rod and the threaded groove, the maximum moving distance of the pull rod is adjusted through the knob, quantitative sampling is realized, and the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural front view schematic diagram of the utility model.

[0016] Figure 2 It is the structure front view of the utility model;

[0017] Figure 3 It is the structure explosion schematic view of the utility model sampling barrel and filter structure;

[0018] Figure 4 It is the local structure explosion section view of the utility model filter structure and installation structure;

[0019] Figure 5 It is the local structure section view of the utility model sampling barrel and ration structure.

[0020] In the drawing: 1, sampling barrel;2, pull rod;3, sampling port;4, filter structure;41, protection ring;42, bottom plate;43, filter screen;44, positioning ring;45, plugboard;46, clamping groove;47, sliding slot;5, installation structure;51, fixed block;52, plug rod;53, button;54, limiting plate;55, spring;56, clamping block;6, ration structure;61, adjusting rod;62, knob. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides an embodiment:

[0023] The utility model provides a liquid sampling assembly for pesticide detection, including sampling cylinder 1, the top of sampling cylinder 1 is inserted with pull rod 2, the bottom of sampling cylinder 1 is equipped with sampling port 3, the bottom of sampling cylinder 1 is equipped with filter structure 4, filter structure 4 includes protection ring 41, the inner surface bottom of protection ring 41 is fixedly connected with bottom plate 42, the center of bottom plate 42 is equipped with filter hole 43, the surface of bottom plate 42 is fixedly connected with locating ring 44, the top of protection ring 41 is fixedly connected with plug plate 45, the surface of plug plate 45 is equipped with clamping groove 46, the top of clamping groove 46 is equipped with sliding slot 47, the both sides surface of sampling cylinder 1 is equipped with mounting structure 5, mounting structure 5 includes fixed block 51, the inside of fixed block 51 is inserted with plug rod 52, one side of plug rod 52 is fixedly connected with button 53, the surface of plug rod 52 is fixedly connected with limit plate 54, the both ends of limit plate 54 are fixedly connected with spring 55, the surface of plug rod 52 is fixedly connected with clamping block 56, the top of sampling cylinder 1 is fixedly connected with ration structure 6, ration structure 6 includes adjusting rod 61, the top of adjusting rod 61 is fixedly connected with knob 62, be equipped with filter structure 4 and mounting structure 5, press button 53 and drive plug rod 52 to move, make clamping block 56 from square groove one inside into round groove two, after the corresponding sliding slot 47 of plug plate 45 top of protection ring 41 is inserted into square groove one on fixed block 51, locating ring 44 is inserted into the annular groove at the bottom of sampling port 3, make plug rod 52 from sliding slot 47 moves to clamping groove 46, release button 53, under the action of spring 55, limit plate 54 is pushed, then drive plug rod 52 moves to the outside, make clamping block 56 from round groove two into clamping groove 46, with clamping groove 46 is mutually clamped, then the position of plug plate 45 is fixed, to complete the installation of filter structure 4, when disassembling, press button 53, make clamping block 56 from clamping groove 46 moves into round groove two, make clamping block 56 and clamping groove 46 no longer mutually clamped, then can take out plug plate 45 from fixed block 51, filter structure 4 is disassembled and is replaced, the installation and disassembly of filter structure 4 are convenient, avoid filter structure 4 block and affect use effect, be equipped with ration structure 6, by rotating knob 62 drive adjusting rod 61 rotation, then by the cooperation of adjusting rod 61 and thread groove the position of knob 62 is adjusted, the maximum moving distance of pull rod 2 is adjusted through knob 62, to realize ration sampling, it is more convenient to use.

[0024] Further, the inner diameter of the locating ring 44 is equal to the diameter of the filter hole 43, and the bottom of the sampling port 3 is provided with an annular groove, the locating ring 44 is inserted into the annular groove, through the matching of the locating ring 44 and the annular groove, the positioning during the installation of the filter structure 4 is realized, preventing the filter structure 4 from sliding during installation.

[0025] Further, the surface of the fixed block 51 is provided with a square groove one, the plug plate 45 is inserted into the square groove one, one side of the fixed block 51 is provided with a circular groove one, both sides of the plug rod 52 are inserted into the circular groove one, one side of the fixed block 51 close to the pull rod 2 is provided with a circular groove two, the diameter of the circular groove two is equal to the diameter of the clamping block 56, the button 53 is pressed to drive the plug rod 52 to move, so that the clamping block 56 is moved from the square groove one into the circular groove two, the plug plate 45 is inserted into the square groove one on the fixed block 51, and then the filtering structure 4 is preliminarily installed.

[0026] Further, the surface of the sampling cylinder 1 is provided with a circular groove three, the diameter of the plug rod 52 is equal to the diameter of the circular groove three, when the plug rod 52 is inserted into the circular groove three, the clamping block 56 is inserted into the circular groove two, at this time, the plug plate 45 can be installed or disassembled.

[0027] Further, the inside of the fixed block 51 is provided with a square groove two, the limiting plate 54 is slidingly connected into the square groove two, both ends of the spring 55 are fixedly connected with the inner wall of the square groove two and the surface of the limiting plate 54, through the cooperation of the spring 55 and the limiting plate 54, the reset of the plug rod 52 can be realized after the button 53 is pressed to drive the plug rod 52 to move, and the maximum moving distance of the plug rod 52 is limited.

[0028] Further, the diameter of the clamping groove 46 is equal to the diameter of the clamping block 56, the plug rod 52 is slidingly connected into the sliding groove 47, after the sliding groove 47 is corresponding to the plug rod 52, the plug plate 45 is inserted into the square groove one on the fixed block 51, so that the plug rod 52 is moved from the sliding groove 47 into the clamping groove 46, the button 53 is released, the limiting plate 54 is pushed under the action of the spring 55, and then the plug rod 52 is moved outward, so that the clamping block 56 is moved from the circular groove two into the clamping groove 46, and the clamping groove 46 is clamped with each other, and then the position of the plug plate 45 is fixed.

[0029] Further, the surface of the adjusting rod 61 is provided with threads, the top of the sampling cylinder 1 is provided with a threaded groove, the adjusting rod 61 is slidingly connected into the threaded groove through threads, the bottom of the knob 62 is in contact with the top of the pull rod 2, the adjusting rod 61 is rotated by rotating the knob 62, and then the position of the knob 62 is adjusted through the cooperation of the adjusting rod 61 and the threaded groove, the maximum moving distance of the pull rod 2 is adjusted through the knob 62, so that the quantitative sampling is realized.

[0030] Working principle: in use, first install the filter structure 4, press the button 53 to drive the inserting rod 52 to move, make the clamping block 56 move from the square groove one into the round groove two, after the slide groove 47 on the top of the inserting plate 45 of the protection ring 41 corresponds to the inserting rod 52, insert into the square groove one on the fixed block 51, the positioning ring 44 is inserted into the annular groove at the bottom of the sampling port 3, make the inserting rod 52 move from the slide groove 47 to the clamping groove 46, release the button 53, under the action of the spring 55, push the limiting plate 54, then drive the inserting rod 52 to move outward, make the clamping block 56 from the round groove two into the clamping groove 46, and the clamping groove 46 is mutually clamped, then the position of the inserting plate 45 is fixed, so as to complete the installation of the filter structure 4, rotate the knob 62 to drive the adjusting rod 61 to rotate, then adjust the position of the knob 62 through the cooperation of the adjusting rod 61 and the threaded groove, adjust the maximum moving distance of the pull rod 2 through the knob 62, so as to realize quantitative sampling, after long time use, the filter structure 4 needs to be disassembled and replaced, press the button 53, make the clamping block 56 move out from the clamping groove 46 into the round groove two, make the clamping block 56 and the clamping groove 46 not mutually clamped, then the inserting plate 45 can be taken out from the fixed block 51, disassemble the filter structure 4 to replace.

[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A liquid sampling assembly for pesticide detection comprising a sampling cartridge (1) characterised in that: The top of the sampling cylinder (1) is inserted with a pull rod (2), the bottom of the sampling cylinder (1) is provided with a sampling port (3), and the bottom of the sampling cylinder (1) is provided with a filter structure (4). The filter structure (4) comprises a protection ring (41), the inner surface of the protection ring (41) is fixedly connected with a bottom plate (42) at the bottom, a filter hole (43) is formed in the center of the bottom plate (42), a positioning ring (44) is fixedly connected to the surface of the bottom plate (42), an insertion plate (45) is fixedly connected to the top of the protection ring (41), a clamping groove (46) is formed in the surface of the insertion plate (45), a sliding groove (47) is formed in the top of the clamping groove (46), and mounting structures (5) are arranged on the two side surfaces of the sampling cylinder (1). The mounting structure (5) comprises a fixed block (51), the inside of the fixed block (51) is inserted with an insertion rod (52), one side of the insertion rod (52) is fixedly connected with a button (53), the surface of the insertion rod (52) is fixedly connected with a limiting plate (54), the two ends of the limiting plate (54) are fixedly connected with springs (55), the surface of the insertion rod (52) is fixedly connected with a clamping block (56), and the top of the sampling cylinder (1) is fixedly connected with a quantitative structure (6). The quantitative structure (6) comprises an adjusting rod (61), and the top of the adjusting rod (61) is fixedly connected with a rotary knob (62).

2. The liquid sampling assembly for pesticide detection according to claim 1, characterized in that: The inner diameter of the positioning ring (44) is equal to the diameter of the filter hole (43), the bottom of the sampling port (3) is provided with an annular groove, and the positioning ring (44) is inserted into the annular groove.

3. The liquid sampling assembly for pesticide detection according to claim 1, wherein: A square groove one is formed in the surface of the fixed block (51), the insertion plate (45) is inserted into the square groove one, a circular groove one is formed in one side of the fixed block (51), the two sides of the insertion rod (52) are inserted into the circular groove one, a circular groove two is formed in the side of the fixed block (51) close to the pull rod (2), and the diameter of the circular groove two is equal to the diameter of the clamping block (56).

4. The liquid sampling assembly for pesticide detection according to claim 1, wherein: Circular grooves three are formed in the two side surfaces of the sampling cylinder (1), and the diameter of the insertion rod (52) is equal to the diameter of the circular grooves three.

5. The liquid sampling assembly for pesticide detection of claim 1, wherein: A square groove two is formed in the inside of the fixed block (51), the limiting plate (54) is slidingly connected into the square groove two, and the two ends of the spring (55) are fixedly connected with the inner wall of the square groove two and the surface of the limiting plate (54) respectively.

6. The liquid sampling assembly for pesticide detection of claim 1, wherein: The diameter of the clamping groove (46) is equal to the diameter of the clamping block (56), and the insertion rod (52) is slidingly connected into the sliding groove (47).

7. The liquid sampling assembly for pesticide detection according to claim 1, wherein: The surface of the adjusting rod (61) is provided with threads, the top of the sampling cylinder (1) is provided with a threaded groove, the adjusting rod (61) is slidingly connected into the threaded groove through threads, and the bottom of the rotary knob (62) is in contact with the top of the pull rod (2).

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