A detection device for glyphosate in soil

Abstract

The present invention provides a detection device for glyphosate in soil, comprising: a base; a driving mechanism, the driving mechanism comprising a driving motor, a gearbox and a driving rod body, the driving motor and the gearbox are both fixedly mounted on the base, the output end of the driving motor is fixedly connected to the input end of the gearbox, and the output end of the gearbox is fixedly connected to the driving rod body; a shell, the shell is fixedly mounted on the top of the gearbox. This scheme finally realizes that in the soil extraction process of glyphosate detection, the centrifugal working height of the centrifugal inner cover is conveniently adjusted through the lifting mechanism, so that the soil sample in the centrifugal inner cover is centrifuged at different heights of the alkaline extract, so that the alkaline extract is more fully utilized, and the efficiency of soil sample centrifugation in the glyphosate detection process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil analysis, and in particular to a detection device for glyphosate in soil. Background Art

[0002] With the continuous development and progress of agriculture, the demand for agricultural production continues to increase. In the process of agricultural planting, weeds spread along the soil will grow rapidly with the crops. Weeds grow fast, consume nutrients in the soil, and cause serious harm to the growth of crops. In the process of crop disease and insect pest prevention and control, herbicides are needed. They have high-quality weed control performance, low labor consumption, and low cost.

[0003] However, the main ingredient of herbicides is glyphosate. As the amount of herbicide used increases, the amount of glyphosate left in the soil increases. Glyphosate remains in the soil for a long time, which can easily affect the functionality of soil planting and lead to reduced crop yields. Glyphosate itself is toxic and harmful, and also has potential hazards to the human body. In the process of agricultural soil remediation and research, soil sampling, purification and analysis are used to detect glyphosate.

[0004] In the process of detecting glyphosate in soil, the soil after sampling needs to be extracted with alkaline extraction solution. During the extraction, the centrifugal equipment is used for sufficient centrifugation, and the supernatant is taken for later use. During the centrifugation process, it is not convenient to raise or lower the centrifugal range and the solution range of the alkaline extraction solution. The utilization rate of alkaline extraction solutions at different liquid levels during the centrifugation process needs to be improved.

[0005] Therefore, it is necessary to provide a detection device for glyphosate in soil to solve the above technical problems. Summary of the invention

[0006] The invention provides a device for detecting glyphosate in soil, which solves the problem in the related art that the utilization rate of alkaline extracts with different liquid levels in a centrifugal process needs to be improved.

[0007] In order to solve the above technical problems, the present invention provides a device for detecting glyphosate in soil, comprising:

[0008] Base;

[0009] A driving mechanism, the driving mechanism comprising a driving motor, a gearbox and a driving rod body, the driving motor and the gearbox are both fixedly mounted on the base, the output end of the driving motor is fixedly connected to the input end of the gearbox, and the output end of the gearbox is fixedly connected to the driving rod body;

[0010] A housing, the housing being fixedly mounted on the top of the gearbox;

[0011] A lifting mechanism, the lifting mechanism comprising a first telescopic member and a connecting cover, the first telescopic member is fixedly mounted on the shell, the output end of the first telescopic member passes through the shell, and the output end of the first telescopic member is slidably connected to the shell, the output end of the first telescopic member is rotatably mounted with the connecting cover, and the connecting cover is slidably mounted on the outer surface of the driving rod body;

[0012] A centrifugal inner cover, wherein the centrifugal inner cover is fixedly mounted on the connecting cover body;

[0013] A feed inlet, the feed inlet is installed on the shell, and the feed inlet is located above the centrifugal inner cover;

[0014] A discharge port is installed on the shell, the discharge port is located below the centrifugal inner cover, and a control valve body is arranged on the discharge port, wherein the shell is filled with alkaline extract.

[0015] Preferably, the shell consists of a fixed box and a cover plate, the fixed box is fixedly mounted on the gearbox, the fixed box is fixedly mounted to the cover plate via a connecting flange, the first telescopic member is mounted on the cover plate, the feed port is mounted on the cover plate, and the discharge port is mounted on the fixed box.

[0016] Preferably, the cross section of the driving rod body is a convex structure, and a straight-line sliding groove is provided at the bottom of the connecting cover body, and the driving rod body is inserted into the straight-line sliding groove.

[0017] Preferably, it also includes a docking cover, which is fixedly mounted on the cover plate, the docking cover is movably connected to the connecting cover body, the docking cover is movably connected to the centrifugal inner cover, the output end of the feed port passes through the cover plate and the docking cover in sequence, and the output end of the feed port is located below the docking cover.

[0018] Preferably, a cleaning outer ring is fixedly mounted on the outer surface of the docking cover, and the cleaning outer ring corresponds to the centrifugal inner cover in upper and lower positions.

[0019] Preferably, it also includes a liquid outlet regulating mechanism, which includes a fixed shaft, an regulating tube, a connecting rod, an regulating shaft, a pull ring, a limit ring and a support spring, wherein the fixed shaft is fixedly installed on the fixed box, an adjusting tube is sleeved on the fixed shaft, the bottom end of the regulating tube is inserted into the input end of the discharge port, at least two groups of connecting rods are fixedly installed in the regulating tube, one end of the connecting rod is fixedly installed with an adjusting shaft, two groups of connecting rods are connected to one group of adjusting shafts, the bottom end of the adjusting shaft passes through the discharge port and extends outside the discharge port, the adjusting shaft is slidably connected to the discharge port, a pull ring is fixedly installed on the bottom end of the adjusting shaft, a limit ring is fixedly installed in the discharge port, the limit ring is fixedly connected to one end of the support spring, and the other end of the support spring is fixedly connected to the bottom of the regulating tube.

[0020] Preferably, it further comprises a second telescopic member, the top end of which is fixedly mounted on the cover plate, and the output end of which is fixedly connected to the fixed shaft, wherein the fixed shaft has no contact with the fixed box.

[0021] Preferably, a linkage slider is fixedly installed on the centrifugal inner cover, a first linkage ring is fixedly installed on the adjusting tube, the linkage slider has an arc of 30°, the first linkage ring is an I-shaped structure, and the linkage slider matches the size of the first linkage ring.

[0022] Preferably, a second linkage ring is fixedly installed on the fixed shaft, and the fixed shaft also includes a movable supporting mechanism, the movable supporting mechanism includes a fixed sleeve, a ventilation hole, a rubber disc and a linkage shaft, the fixed sleeve is fixedly installed on the cover plate, the fixed sleeve is provided with a ventilation hole, a rubber disc is interference-fitted in the fixed sleeve, a linkage shaft is fixedly installed in the rubber disc, the bottom end of the linkage shaft is fixedly connected to the top end of the fixed shaft, wherein the second linkage ring is an I-shaped structure, and the second linkage ring matches the size of the linkage slider.

[0023] Preferably, the outer surface of the rubber disc is provided with corrugated grooves with a depth of 0.5 to 1.2 mm.

[0024] Compared with the related art, the detection device for glyphosate in soil provided by the present invention has the following beneficial effects:

[0025] By movably installing the centrifugal inner cover in the shell, during the soil extraction process of glyphosate detection, the centrifugal working height of the centrifugal inner cover can be conveniently adjusted through the lifting mechanism, so that the soil sample in the centrifugal inner cover can be centrifuged at different heights of the alkaline extract solution, so that the alkaline extract solution is more fully utilized, and the efficiency of soil sample centrifugation during the glyphosate detection process is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 A three-dimensional diagram of a first embodiment of a device for detecting glyphosate in soil provided by the present invention;

[0028] Figure 2 for Figure 1 A cross-sectional view of the entirety shown;

[0029] Figure 3 for Figure 2 The schematic diagram of the split structure of the driving rod body and the connecting cover body shown;

[0030] Figure 4 for Figure 2 The state diagram of the centrifugal inner cover shown is in normal operation;

[0031] Figure 5 for Figure 4 A state diagram of the centrifugal inner cover after being raised and adjusted upward;

[0032] Figure 6 A schematic structural diagram of a second embodiment of a device for detecting glyphosate in soil provided by the present invention;

[0033] Figure 7 for Figure 5 An enlarged schematic diagram of part A is shown;

[0034] Figure 8 for Figure 6 Schematic diagram of the optimization scheme of the fixed shaft part shown;

[0035] Fig. 9 A schematic structural diagram of a third embodiment of a device for detecting glyphosate in soil provided by the present invention;

[0036] Fig.10 for Fig. 9 A state diagram of the middle linkage slider and the first linkage ring docking;

[0037] Fig.11 for Fig. 9 Diagram of the state of the middle linkage slider docking with the second linkage ring.

[0038] Description of Figure Numbers:

[0039] 1. Base;

[0040] 2. driving mechanism, 21. driving motor, 22. gearbox, 23. driving rod body;

[0041] 3. Shell, 31. Fixed box, 32. Cover plate;

[0042] 4. lifting mechanism, 41. first telescopic member, 42. connecting cover body;

[0043] 5. Centrifugal inner cover, 51. Linkage slider;

[0044] 6. Feed inlet;

[0045] 7. discharge port, 71. control valve body;

[0046] 8. Docking cover, 81. Clean outer ring;

[0047] 9. Liquid outlet regulating mechanism, 91. Fixed shaft, 911. Second telescopic member, 912. Second linkage ring, 92. Adjusting tube, 921. First linkage ring, 93. Connecting rod, 94. Adjusting shaft, 95. Pull ring, 96. Limiting ring, 97. Support spring, 98. Movable supporting mechanism, 981. Fixed sleeve, 982. Ventilation hole, 983. Rubber disc, 984. Linkage shaft.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] 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.

[0050] The invention provides a device for detecting glyphosate in soil.

[0051] Please refer to Figures 1 to 5 In a first embodiment of the present invention, a device for detecting glyphosate in soil comprises:

[0052] Base 1;

[0053] The driving mechanism 2 includes a driving motor 21, a gearbox 22 and a driving rod 23. The driving motor 21 and the gearbox 22 are both fixedly mounted on the base 1. The output end of the driving motor 21 is fixedly connected to the input end of the gearbox 22. The output end of the gearbox 22 is fixedly connected to the driving rod 23.

[0054] A housing 3, wherein the housing 3 is fixedly mounted on the top of the gearbox 22;

[0055] The lifting mechanism 4 includes a first telescopic member 41 and a connecting cover 42. The first telescopic member 41 is fixedly mounted on the housing 3. The output end of the first telescopic member 41 passes through the housing 3. The output end of the first telescopic member 41 is slidably connected to the housing 3. The output end of the first telescopic member 41 is rotatably mounted with the connecting cover 42. The connecting cover 42 is slidably mounted on the driving rod 23.

[0056] A centrifugal inner cover 5, wherein the centrifugal inner cover 5 is fixedly mounted on the connecting cover body 42;

[0057] A feed port 6, the feed port 6 is installed on the housing 3, and the feed port 6 is located above the centrifugal inner cover 5;

[0058] The discharge port 7 is installed on the shell 3 , and the discharge port 7 is located below the centrifugal inner cover 5 . A control valve body 71 is provided on the discharge port 7 , wherein the shell 3 is filled with alkaline extract.

[0059] By movably installing the centrifugal inner cover 5 in the shell 3, during the soil extraction process of glyphosate detection, the centrifugal working height of the centrifugal inner cover 5 can be conveniently adjusted through the lifting mechanism 4, so that the soil sample in the centrifugal inner cover 5 can be centrifuged at different heights of the alkaline extract, so that the alkaline extract can be more fully utilized, thereby improving the efficiency of soil sample centrifugation during the glyphosate detection process.

[0060] The centrifugal inner cover 5 adopts the existing centrifugal drum structure to provide support for centrifugal separation.

[0061] A movable door plate is provided on the top of the feed port 6 to facilitate the opening and closing adjustment of the feed port 6 . The output end of the feed port 6 is connected to the shell 3 , and the output end of the feed port 6 is located directly above the centrifugal inner cover 5 .

[0062] The input end of the discharge port 7 is communicated with the inside of the housing 3 , and the input end of the discharge port 7 is located outside the centrifugal inner cover 5 .

[0063] When centrifugation is required, the control valve body 71 is closed, and the alkaline extract is preferentially injected into the housing 3 through the feed port 6, and the liquid level is located between the top surface and the bottom surface of the centrifugal inner cover 5;

[0064] Then, the soil sample after collection and screening is injected into the feed port 6, and the soil sample enters the interior of the centrifugal inner cover 5 through the feed port 6;

[0065] The driving motor 21 is started to drive the rod body 31 to run and drive the centrifugal inner cover 5 to perform centrifugal operation through the connecting cover body 42;

[0066] During the centrifugation process, the first telescopic member 41 is started, the first telescopic member 41 drives the connecting cover 42 to move up and down, and the connecting cover 42 drives the centrifugal inner cover 5 to adjust the centrifugal height, so as to perform centrifugation at different liquid level heights.

[0067] The shell 3 is composed of a fixed box 31 and a cover plate 32. The fixed box 31 is fixedly mounted on the gearbox 22. The fixed box 31 is fixedly mounted to the cover plate 32 via a connecting flange. The first telescopic member 41 is mounted on the cover plate 32. The feed port 6 is mounted on the cover plate 32. The discharge port 7 is mounted on the fixed box 31.

[0068] The cover plate 32 is movably mounted on the fixed box 31 through a connecting flange, which facilitates the installation and removal of the cover plate 32, thereby facilitating the maintenance and disassembly of the equipment.

[0069] When the cover plate 32 is separated from the fixed box 31, the cover plate 32 can synchronously drive the connected first telescopic member 41, the connecting cover body 42, and the centrifugal inner cover 5 to move upward and out of the fixed box 31, so as to facilitate the disassembly and maintenance of the equipment.

[0070] The first telescopic member 41 can be an electric telescopic rod, a telescopic cylinder or a hydraulic cylinder, preferably a hydraulic cylinder. When in use, it is equipped with existing hydraulic equipment and control equipment to provide stable support for the lifting and lowering adjustment of the connection cover body 42.

[0071] In an optional manner, a manhole is provided on the cover plate 32 to facilitate maintenance and overhaul without opening the cover plate 32 .

[0072] The cross section of the driving rod body 23 is a convex structure. The bottom of the connecting cover body 42 is provided with a straight groove, and the driving rod body 23 is inserted into the straight groove.

[0073] When in use, the drive motor 21 is connected to an external power source to provide a power source for the rotation of the drive rod body 23. The gearbox 22 adopts an existing gear transmission system to connect the drive motor 21 and the drive rod body 23 to provide support for the rotation adjustment of the drive rod body 23.

[0074] The driving rod body 23 has a convex cross-section, which is convenient for docking and installation in a straight-line groove, and is connected to the connecting cover body 42, so that the driving rod body 23 can synchronously drive the connecting cover 42 to rotate when rotating, thereby providing a power source for centrifugal rotation of the centrifugal inner cover 5;

[0075] On the other hand, while the rotation conditions between the driving rod body 23 and the connecting cover body 42 are met, stable support is provided for the lifting and lowering adjustment of the connecting cover body 42, which facilitates the height adjustment of the connecting cover body 42 while the connecting cover body 42 and the driving rod body 23 rotate synchronously, providing support for the lifting and lowering adjustment of the centrifugal inner cover 5.

[0076] It also includes a docking cover 8, which is fixedly mounted on the cover plate 32, and is movably connected to the connecting cover body 42, and is movably connected to the centrifugal inner cover 5. The output end of the feed port 6 passes through the cover plate 32 and the docking cover 8 in sequence, and the output end of the feed port 6 is located below the docking cover 8.

[0077] The docking cover 8 facilitates the lifting and lowering adjustment of the centrifugal inner cover 5 to provide shielding and blocking effects, thereby preventing soil particles inside the centrifugal inner cover 5 from diffusing outward during the centrifugation process, maintaining the stability of the soil during the centrifugation process, and preventing soil particles from escaping from the inside of the centrifugal inner cover 5, thereby maintaining the stability of the centrifugal treatment.

[0078] A cleaning outer ring 81 is fixedly mounted on the outer surface of the docking cover 8 , and the cleaning outer ring 81 corresponds to the centrifugal inner cover 5 up and down.

[0079] See also Figure 4 and Figure 5 The cleaning outer ring 81 is installed on the outside of the docking cover 8. After the centrifugal inner cover 5 moves upward, the docking cover 8 can stably slide and contact the surface of the centrifugal inner cover 5. Cooperating with the upward movement of the centrifugal inner cover 5, the cleaning outer ring 81 can automatically clean the inner edge of the centrifugal inner cover 5 to ensure the stability of the continuous centrifugal treatment of the centrifugal inner cover 5.

[0080] The cleaning outer ring 81 cooperates with the docking cover 8 to adjust the space for centrifugal operation inside the centrifugal inner cover 5 according to the needs of use.

[0081] The centrifugal inner cover 5 moves upward, and the space for centrifugal operation is reduced;

[0082] The centrifugal inner cover 5 moves downward, and the space for centrifugal operation increases until the centrifugal inner cover 5 is fully opened.

[0083] After the soil sample is centrifuged, the cover plate 32 needs to be opened to extract and collect the supernatant after centrifugation, so as to provide stable support for the subsequent purification and detection of the extract.

[0084] The working principle of the detection device for glyphosate in soil provided in this embodiment is as follows:

[0085] S1 Injection of raw materials: inject the alkaline extract into the shell 3 first, and then inject the soil into the centrifugal inner cover 5 through the feed port 6;

[0086] S2 starts the starting motor 21, the centrifugal inner cover 5 rotates centrifugally, and the first telescopic member 41 is started. The first telescopic member 41 drives the centrifugal inner cover 5 to move upward through the connecting cover body 42, and is movably sleeved on the docking cover 8, providing stable support for the rotation of the centrifugal inner cover 5;

[0087] S3 The first telescopic member 41 continues to drive the centrifugal inner cover 5 to move upward, and the cleaning outer ring 81 on the docking cover 8 can clean and push the soil on the inner surface of the centrifugal inner cover 5 downward, so that the attached soil re-enters the centrifugal action, facilitating continuous centrifugation and improving the adequacy of the centrifugation.

[0088] After the soil is centrifuged, the cover plate 32 needs to be opened to extract and collect the supernatant after centrifugation, so as to provide stable support for the subsequent purification and detection of the extract.

[0089] The device for detecting glyphosate in soil provided in this embodiment has the following beneficial effects:

[0090] By movably installing the centrifugal inner cover 5 in the shell 3, during the soil extraction process of glyphosate detection, the centrifugal working height of the centrifugal inner cover 5 can be conveniently adjusted through the lifting mechanism 4, so that the soil sample in the centrifugal inner cover 5 can be centrifuged at different heights of the alkaline extract, so that the alkaline extract can be more fully utilized, thereby improving the efficiency of soil sample centrifugation during the glyphosate detection process.

[0091] Second embodiment:

[0092] Please refer to Figures 6 to 8 Based on the detection device for glyphosate in soil provided by the first embodiment of the present invention, the second embodiment of the present invention provides another detection device for glyphosate in soil. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0093] Specifically, the difference of the detection device of glyphosate in soil provided by the second embodiment of the present invention is that the detection device of glyphosate in soil also includes a liquid discharge regulating mechanism 9, and the liquid discharge regulating mechanism 9 includes a fixed shaft 91, a regulating tube 92, a connecting rod 93, an regulating shaft 94, a pull ring 95, a limit ring 96 and a support spring 97. The fixed shaft 91 is fixedly installed on the fixed box 31, and the regulating tube 92 is sleeved on the fixed shaft 91. The bottom end of the regulating tube 92 is inserted into the input end of the discharge port 7, and at least Two groups of connecting rods 93, one end of which is fixedly installed with an adjusting shaft 94, the two groups of connecting rods 93 are connected to one group of adjusting shafts 94, the bottom end of the adjusting shaft 94 passes through the discharge port 7 and extends outside the discharge port 7, the adjusting shaft 94 is slidably connected to the discharge port 7, the bottom end of the adjusting shaft 94 is fixedly installed with a pull ring 95, a limiting ring 96 is fixedly installed in the discharge port 7, the limiting ring 96 is fixedly connected to one end of the support spring 97, and the other end of the support spring 97 is fixedly connected to the bottom of the adjusting tube 92.

[0094] By installing a liquid discharge regulating mechanism 9 on the discharge port 7, when the pull ring 95 is manually pulled down, the connection between the regulating tube 92 and the fixed shaft 91 is separated, and the supernatant after centrifugation is discharged through the discharge port 7. When the pull ring 95 is manually pushed up, the connection between the regulating tube 92 and the discharge port 7 is separated, and the waste liquid after sampling is discharged, providing a stable control option for the discharge in the shell 3, which is convenient for sampling or discharging according to actual use needs.

[0095] The pull ring 95 is installed below the discharge port 7 , and a movable space for pushing upward or moving downward is reserved between the pull ring 95 and the discharge port 7 , so as to ensure the stability of the adjustment of the pull ring 95 .

[0096] The pull ring 95 is mainly adjusted manually, and the control valve body 71 is not provided on the discharge port 7. Only the regulating tube 92 needs to be adjusted to open or close the discharge port 7, thereby providing stable support for the operation or discharge of the equipment.

[0097] Among them, the fixed shaft 91 and the inner surface of the adjusting tube 92 are slidably sealed, and the adjusting tube 92 and the inner surface of the discharge port 7 are slidably sealed;

[0098] In the initial state, under the elastic support of the support spring 97, the fixed shaft 91 blocks the top of the regulating tube 92, and the bottom of the regulating tube 92 blocks the input end of the discharge port 7 to maintain the stability of the centrifuge and prevent the alkaline extract from leaking.

[0099] When the pull ring 95 is pulled down, the fixed shaft 91 is separated from the regulating tube 92, the top port of the regulating tube 92 is opened and connected to the liquid inside the shell 3 for receiving the supernatant, and the bottom of the regulating tube 92 is connected to the discharge port 7 for convenient sampling and discharge of the supernatant;

[0100] When the pull ring 95 is in the upward push state, the fixed shaft 91 and the adjusting tube 92 remain blocked, the bottom end of the adjusting tube 92 is separated from the discharge port 7, the input end of the discharge port 7 is connected to the fixed box 31, and the waste liquid can be discharged through the discharge port 7.

[0101] It also includes a second telescopic member 911 , the top end of which is fixedly mounted on the cover plate 32 , and the output end of the second telescopic member 911 is fixedly connected to the fixed shaft 91 , wherein the fixed shaft 91 has no contact with the fixed box 31 .

[0102] The second telescopic member 911 can be an electric telescopic rod, a telescopic cylinder or a hydraulic cylinder, preferably a hydraulic cylinder, which can be equipped with existing hydraulic equipment or control equipment when used to provide a power source for the lifting and lowering adjustment of the fixed shaft 91.

[0103] The fixed shaft 91 is movably installed in the fixed box 31 and is controlled by the second telescopic member 911, so that the installation height of the fixed shaft 91 can be adjusted during actual use. The height of the fixed shaft 91 can be adjusted to facilitate the regulation of the liquid level height of the supernatant liquid, so as to facilitate the sampling and discharge of the supernatant liquid from different liquid level heights.

[0104] The working principle of the detection device for glyphosate in soil provided in this embodiment is as follows:

[0105] When the centrifuged solution of T1 needs to be sampled, the pull ring 95 is pushed downward first, the pull ring 95 drives the adjustment shaft 94 to move downward, the adjustment shaft 94 drives the connecting rod 93 to move downward, and the connecting rod 93 drives the adjustment tube 92 to move downward;

[0106] The top end of the T2 regulating tube 92 moves downward and shrinks at the input end of the discharge port 7, maintaining the discharge port 7 and the inside of the regulating tube 92 in communication, while the connection is in a blocked and closed state. The top end of the regulating tube 92 moves downward and separates from the fixed shaft 91, so that the input end of the regulating tube 92 is opened, and the top surface of the regulating tube 92 is lower than the liquid level of the supernatant, and the supernatant passes through the regulating tube 92 and the discharge port 7 for sampling and discharge;

[0107] When T3 is discharging liquid, the pull ring 95 is pushed upwards first, the pull ring 95 drives the adjustment shaft 94 to move upwards, the adjustment shaft 94 drives the connecting rod 93 to move upwards, and the connecting rod 93 drives the adjustment tube 92 to move upwards;

[0108] The top end of the T4 regulating tube 92 moves upward and maintains a sealed connection with the fixed shaft 91, and the bottom end of the regulating tube 92 moves upward and leaves the discharge port 7, so as to facilitate normal liquid discharge after sampling is completed.

[0109] Beneficial effects of the device for detecting glyphosate in soil provided in this embodiment:

[0110] By installing a liquid discharge regulating mechanism 9 on the discharge port 7, when the pull ring 95 is manually pulled down, the connection between the regulating tube 92 and the fixed shaft 91 is separated, and the supernatant after centrifugation is discharged through the discharge port 7. When the pull ring 95 is manually pushed up, the connection between the regulating tube 92 and the discharge port 7 is separated, and the waste liquid after sampling is discharged, providing a stable control option for the discharge in the shell 3, which is convenient for sampling or discharging according to actual use needs.

[0111] Third embodiment:

[0112] Please refer to Figures 9 to 11 Based on the detection device for glyphosate in soil provided by the second embodiment of the present invention, the third embodiment of the present invention provides another detection device for glyphosate in soil. The third embodiment is only a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0113] Specifically, the difference of the detection device for glyphosate in soil provided by the third embodiment of the present invention is that a linkage slider 51 is fixedly installed on the centrifugal inner cover 5, and a first linkage ring 921 is fixedly installed on the adjusting tube 92, the linkage slider 51 has an arc of 30°, and the first linkage ring 921 is an I-shaped structure, and the linkage slider 51 matches the size of the first linkage ring 921.

[0114] See also Fig.10 A linkage slider 51 is installed outside the centrifugal inner cover 5, and the first telescopic member 41 conveniently drives the centrifugal inner cover 5 and the linkage slider 51 to move upward to the docking range of the first linkage ring 921, and the driving motor 21 conveniently drives the linkage slider 51 on the centrifugal inner cover 5 to rotate into the first linkage ring 921, so that the linkage slider 51 and the first linkage ring 921 are docked. After docking, the first telescopic member 41 is used to conveniently control the lifting and lowering adjustment of the first linkage ring 921, thereby driving the lifting and lowering adjustment of the adjusting tube 92, so that the first telescopic member 41 and the driving motor 21 provide power to complete the lifting and lowering adjustment of the adjusting tube 92, reduce power consumption, and realize the linkage adjustment function of the equipment.

[0115] Among them, when the centrifugal inner cover 5 is in a normal centrifugal working state, the height is adjusted first, and then centrifugation is performed. When the height is adjusted, the centrifugal inner cover 5 remains in a closed state, and the linkage slider 51 and the first linkage ring 921 are staggered up and down. During centrifugation, the rotation range of the linkage slider 51 should be avoided to be on the same plane as the first linkage ring 921 to maintain the stability of the equipment operation.

[0116] The fixed shaft 91 is fixedly mounted with a second linkage ring 912, and also includes a movable support mechanism 98, the movable support mechanism 98 includes a fixed sleeve 981, a ventilation hole 982, a rubber disc 983 and a linkage shaft 984, the fixed sleeve 981 is fixedly mounted on the cover plate 32, the fixed sleeve 981 is provided with a ventilation hole 982, a rubber disc 983 is interference fit inside the fixed sleeve 981, a linkage shaft 984 is fixedly mounted inside the rubber disc 983, the bottom end of the linkage shaft 984 is fixedly connected to the top end of the fixed shaft 91, wherein the second linkage ring 912 is an I-shaped structure, and the second linkage ring 912 matches the size of the linkage slider 51.

[0117] Reference Fig.11 A linkage slider 51 is installed outside the centrifugal inner cover 5. The linkage slider 51 can be docked with the second linkage ring 912 during lifting and lowering adjustment. After docking, it is convenient to adjust the installation height of the fixed shaft 9. After adjustment, the linkage slider 51 is docked with the first linkage ring 921, which is convenient for the fixed shaft 9 to be at different heights. When sampling the supernatant, it is convenient to use the fixed shaft 9 at different heights to meet the needs of taking liquid at different heights. There is no need for a separate power output to control the height of the fixed shaft 9, which saves energy consumption and facilitates the stable operation of the equipment.

[0118] When the centrifugal inner cover 5 is in normal centrifugal working state, the height adjustment is performed first. When centrifuging and adjusting the height, the centrifugal inner cover 5 remains in a closed state, and the linkage slider 51 and the second linkage ring 912 are staggered up and down. During centrifugation, the rotation range of the linkage slider 51 should be avoided to be on the same plane as the second linkage ring 912 to maintain the stability of the equipment operation.

[0119] The outer surface of the rubber disc 983 is provided with corrugated grooves with a depth of 0.5 to 1.2 mm.

[0120] The corrugated grooves on the surface of the rubber disk 983 can increase the friction force F at the connection with the fixed sleeve 981, so as to keep the fixed shaft 91 stable when in a non-operating state. When in a non-operating state, the total gravity G of the fixed shaft 91, the linkage shaft 984 and the rubber disk 983, 3G=F, so that F>G, and the fixed shaft 91 will not slide when in a non-operating state;

[0121] When the first telescopic member 41 drives the linkage slider 51 to move up or down by connecting the cover body 42 and the centrifugal inner cover 5, the thrust T provided by the first telescopic member 41, T>F, can overcome the friction force at the connection, so that the rubber disc 983 can slide relative to the fixed sleeve 981;

[0122] Therefore, the first telescopic member 41 can drive the fixed shaft 91 to be partially lifted and lowered stably.

[0123] Among them, when the equipment is in the initial state, the linkage slider 51 is located on the side away from the first linkage ring 921 or the second linkage ring 912, providing stable support for the lifting and lowering adjustment of the centrifugal inner cover.

[0124] The working principle of the detection device for glyphosate in soil provided in this embodiment is as follows:

[0125] Before adjusting the liquid level height of U1 sampling, the first telescopic member 41 is started first, and the centrifugal inner cover 5 drives the linkage slider 51 to move upward. When the linkage slider 51 moves to the docking height of the second linkage ring 912, the driving motor 21 is started, and the centrifugal inner cover 5 drives the linkage slider 51 to rotate and snap into the second linkage ring 912 to complete the docking;

[0126] U2 starts the first telescopic member 41 again, the centrifugal inner cover 5 drives the linkage slider 51 to be raised and lowered, and the linkage slider 51 drives the fixed cover 91 to be raised and lowered synchronously through the second linkage ring 912. When the height required for sampling is adjusted, the first telescopic member 41 is closed, the drive motor 21 is started, and the centrifugal inner cover 5 drives the linkage slider 51 to rotate and reset, and the linkage slider 51 is out of contact with the second linkage ring 912;

[0127] When sampling U3, the first telescopic member 41 is started, and the centrifugal inner cover 5 drives the linkage slider 51 to move downward. When the linkage slider 51 moves to the docking height of the first linkage ring 921, the driving motor 21 is started, and the centrifugal inner cover 5 drives the linkage slider 51 to rotate and snap into the first linkage ring 921 to complete the docking;

[0128] U4 starts the first telescopic member 41 again, and the centrifugal inner cover 5 drives the linkage slider 51 to be raised or lowered for adjustment, and the linkage slider 51 drives the adjustment cover 92 to be raised or lowered for adjustment through the first linkage ring 921, thereby providing support for sampling or liquid discharge.

[0129] Among them, the linkage slider 51 is respectively connected with the first linkage ring 921 and the second linkage ring 912 to meet the linkage adjustment. After the linkage slider 51 is connected with the second linkage ring 912, it can drive the fixed shaft 91 to move downward, and the second linkage ring 912 moves downward synchronously. The bottom surface of the second linkage ring 912 abuts against the top surface of the adjusting tube 92, which has the function of limiting the top of the adjusting tube 92, thereby preventing the adjusting tube 92 from shaking upward during the operation of the equipment and causing the connection between the adjusting tube 92 and the input end of the discharge port 7 to open, thereby enhancing the sealing of the connection during the centrifugal operation.

[0130] Beneficial effects of the device for detecting glyphosate in soil provided in this embodiment:

[0131] The linkage slider 51 outside the centrifugal inner cover 5 is respectively connected with the first linkage ring 921 and the second linkage ring 912 for use. On the one hand, it is convenient to carry out linkage adjustment of the switch at the top or bottom end of the regulating tube 92, and on the other hand, it is convenient to carry out adaptive adjustment of the height of the fixed shaft 94. After adjustment, it is used to control the height of the liquid outlet from the top of the regulating tube 92, so as to realize sampling at different heights.

[0132] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A detection device for glyphosate in soil, characterized in that: include: Base; A driving mechanism, the driving mechanism comprising a driving motor, a gearbox and a driving rod body, the driving motor and the gearbox are both fixedly mounted on the base, the output end of the driving motor is fixedly connected to the input end of the gearbox, and the output end of the gearbox is fixedly connected to the driving rod body; A housing, the housing being fixedly mounted on the top of the gearbox; A lifting mechanism, the lifting mechanism comprising a first telescopic member and a connecting cover, the first telescopic member is fixedly mounted on the shell, the output end of the first telescopic member passes through the shell, and the output end of the first telescopic member is slidably connected to the shell, the output end of the first telescopic member is rotatably mounted with the connecting cover, and the connecting cover is slidably mounted on the outer surface of the driving rod body; A centrifugal inner cover, wherein the centrifugal inner cover is fixedly mounted on the connecting cover body; A feed inlet, the feed inlet is installed on the shell, and the feed inlet is located above the centrifugal inner cover; A discharge port, the discharge port is mounted on the shell, the discharge port is located below the centrifugal inner cover, a control valve body is arranged on the discharge port, wherein the shell is filled with alkaline extract; The housing is composed of a fixed box and a cover plate, the fixed box is fixedly mounted on the gearbox, the fixed box is fixedly mounted to the cover plate via a connecting flange, the first telescopic member is mounted on the cover plate, the feed port is mounted on the cover plate, and the discharge port is mounted on the fixed box; The cross section of the driving rod body is a convex structure, and a straight groove is provided at the bottom of the connecting cover body, and the driving rod body is inserted into the straight groove; It also includes a docking cover, which is fixedly mounted on the cover plate, the docking cover is movably connected to the connecting cover body, the docking cover is movably connected to the centrifugal inner cover, the output end of the feed port sequentially passes through the cover plate and the docking cover, and the output end of the feed port is located below the docking cover; A cleaning outer ring is fixedly mounted on the outer surface of the docking cover, and the cleaning outer ring corresponds to the centrifugal inner cover up and down. The centrifugal working height of the centrifugal inner cover can be conveniently adjusted through a lifting mechanism, so that the soil sample in the centrifugal inner cover can be centrifuged at different heights of the alkaline extract.

2. The device for detecting glyphosate in soil according to claim 1, characterized in that: The cam is secured to the bottom of the tube and is adapted to engage with the bottom of the tube in a manner that allows the cam to move freely in the tube and to move the tube in a manner that is compatible with the bottom of the tube.

3. The device for detecting glyphosate in soil according to claim 2, characterized in that: It also includes a second telescopic member, the top end of which is fixedly mounted on the cover plate, and the output end of the second telescopic member is fixedly connected to the fixed shaft, wherein the fixed shaft has no contact with the fixed box.

4. The device for detecting glyphosate in soil according to claim 3, characterized in that: A linkage slider is fixedly installed on the centrifugal inner cover, and a first linkage ring is fixedly installed on the adjusting tube. The linkage slider has an arc of 30°, and the first linkage ring is an I-shaped structure. The linkage slider matches the size of the first linkage ring.

5. The device for detecting glyphosate in soil according to claim 4, characterized in that: A second linkage ring is fixedly installed on the fixed shaft, and also includes a movable supporting mechanism, the movable supporting mechanism includes a fixed sleeve, a ventilation hole, a rubber disc and a linkage shaft, the fixed sleeve is fixedly installed on the cover plate, the fixed sleeve is provided with a ventilation hole, a rubber disc is interference-fitted in the fixed sleeve, a linkage shaft is fixedly installed in the rubber disc, the bottom end of the linkage shaft is fixedly connected to the top end of the fixed shaft, wherein the second linkage ring is an I-shaped structure, and the second linkage ring matches the size of the linkage slider.

6. The device for detecting glyphosate in soil according to claim 5, characterized in that: The outer surface of the rubber disc is provided with corrugated grooves with a depth of 0.5 to 1.2 mm.

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