Detection device for detecting release rate of fertilizer

Abstract

The utility model discloses a detection device for detecting the release rate of a fertilizer. The detection device comprises a solution bottle, a filtering container, a stirring device and a pen type TDS (Total Dissolved Solids) meter, the solution bottle is provided with a containing cavity; the filter container can extend into the accommodating cavity and can be taken out from the accommodating cavity, the filter container is provided with a fertilizer accommodating cavity and is also provided with a filter hole, and the two ends of the filter hole are respectively communicated with the fertilizer accommodating cavity and the external environment; the stirring device is used for stirring a solution in the solution bottle; the pen type TDS meter is used for being inserted into the solution bottle to detect the dilution degree of the fertilizer in the solution bottle. Expensive equipment is not needed, so that the measurement cost of the release rate of the fertilizer is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer testing devices, and in particular to a testing device for detecting fertilizer release rate. Background Technology

[0002] Controlled-release fertilizers, as a significant innovation in modern agriculture, can significantly improve nutrient utilization, reduce environmental pollution, and lower agricultural production costs. Their core lies in regulating the nutrient release rate to match the needs of crop growth. Therefore, accurately measuring the controlled-release rate of fertilizer nutrients is a crucial step in research and development and quality control, directly impacting product performance optimization and application effect evaluation.

[0003] Currently, the industry commonly uses the conductivity method to determine the cumulative nutrient release rate of controlled-release fertilizers, with related operations performed according to the standards HG / T 4215 or GB / T 23348. This method simulates the fertilizer release process under specific conditions using a constant-temperature rapid nutrient extraction instrument, indirectly reflecting the nutrient dissolution amount by utilizing changes in conductivity. However, existing technologies have significant drawbacks in practical applications. They require high-precision constant-temperature extraction instruments and supporting testing equipment, resulting in high instrument purchase and maintenance costs. This creates a technical barrier, especially for small and medium-sized research institutions or regions with limited resources, thus hindering the popularization and promotion of controlled-release fertilizer technology.

[0004] Therefore, there is an urgent need to develop a low-cost, easy-to-operate, and low-reliability nutrient slow-release rate measuring device to break through existing technological bottlenecks and promote the widespread application of controlled-release fertilizer technology and industry progress. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a detection device for detecting fertilizer release rate, which does not require expensive equipment, thereby reducing the cost of measuring fertilizer release rate.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A detection device for detecting fertilizer release rate, comprising:

[0008] Solution bottle, the solution bottle having a receiving cavity;

[0009] A filter container that can extend into and be removed from the receiving cavity, the filter container having a fertilizer receiving cavity, and the filter container also having filter holes, the two ends of which are respectively connected to the fertilizer receiving cavity and the external environment;

[0010] A stirring device, used to stir the solution in the solution bottle;

[0011] A pen-type TDS meter, which is used to be inserted into the solution bottle to detect the fertilizer dilution in the solution bottle.

[0012] Furthermore, the stirring device is a magnetic stirrer, and the solution bottle is placed on the rotary table of the magnetic stirrer.

[0013] Furthermore, the magnetic stirrer has a control system, a temperature control component, and a timer. The rotary table, the temperature control component, and the timer are all electrically connected to the control system. The temperature control component can electromagnetically heat the solution bottle to regulate the water temperature inside the solution bottle.

[0014] Furthermore, the solution bottle is detachably placed on the rotary table.

[0015] Furthermore, the display screen of the pen-type TDS meter is connected to the electrodes of the pen-type TDS meter via wires, so that the electrodes of the pen-type TDS meter can extend into the fertilizer receiving cavity.

[0016] Furthermore, the filter holes are located on the side wall of the filter container.

[0017] Furthermore, the filter holes are provided in multiple ways, and the multiple filter holes are distributed circumferentially around the filter container and distributed axially along the filter container.

[0018] Furthermore, the detection device for detecting fertilizer release rate also includes a support, the support being connected to a stirring rod that extends into the receiving cavity.

[0019] Furthermore, the stirring rod can be suspended vertically on the bracket.

[0020] Furthermore, the detection device for detecting fertilizer release rate also includes a bracket, one of the outer side walls of the bracket is provided with a suspension clearance groove along the horizontal direction and along the middle of the bracket, the filter container is connected to a handle rod, the handle rod is connected to a plurality of suspension rods, the plurality of suspension rods are distributed at intervals along the height direction, the handle rod can be placed into the suspension clearance groove, and the suspension rods are used to abut against the top of the bracket.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This detection device for detecting fertilizer release rate only requires the fertilizer to be placed in a filter container. After the fertilizer has dissolved for a set time, it can be removed from the container of the solution bottle. The solution is then stirred evenly by a stirring device. Finally, the solid concentration is measured by a pen-type TDS meter to obtain the fertilizer dilution. No expensive supporting equipment is required. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a detection device for detecting fertilizer release rate according to the present invention;

[0024] Figure 2 for Figure 1 Another perspective view.

[0025] In the diagram: 1. Solution bottle; 11. Receiving cavity; 2. Filter container; 21. Fertilizer receiving cavity; 22. Filter hole; 3. Stirring device; 31. Rotary disc; 4. Pen-type TDS meter; 41. Display screen; 42. Electrode; 43. Wire; 5. Support; 6. Stirring rod; 7. Bracket; 71. Suspension clearance groove; 8. Handle; 9. Suspension rod. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] See Figures 1-2 A preferred embodiment of the present invention provides a detection device for detecting fertilizer release rate, comprising: a solution bottle 1, a filter container 2, a stirring device 3, and a pen-type TDS meter 4.

[0030] The solution bottle 1 has a receiving cavity 11 for containing liquid and a filter container 2. Specifically, the opening of the solution bottle 1 is located at the top of the solution bottle 1 and communicates with the receiving cavity 11, while the filter container 2 enters and exits the receiving cavity 11 through the opening.

[0031] The filter container 2 can extend into and exit the receiving cavity 11; that is, in terms of design dimensions, the outer diameter of the filter container 2 is smaller than the size of the opening. The filter container 2 has a fertilizer receiving cavity 21 for holding the fertilizer to be tested. The filter container 2 also has filter holes 22, with both ends of the filter holes 22 connected to the fertilizer receiving cavity 21 and the external environment, respectively. When the filter container 2, filled with fertilizer, enters the receiving cavity 11 containing water or solution, the water or solution can enter the receiving cavity along the filter holes 22, thereby dissolving the fertilizer.

[0032] The stirring device 3 is used to stir the solution in the solution bottle 1 so that the fertilizer can be evenly distributed in the receiving cavity 11 after release.

[0033] The pen-type TDS meter 4 is used to insert into the solution bottle 1 to detect the fertilizer dilution in the solution bottle 1.

[0034] During operation, first, fill the receiving cavity 11 of the solution bottle 1 with clean water or solution, then fill the receiving cavity of the filter container 2 with fertilizer, and then immerse the filter container 2 in the clean water or solution in the receiving cavity 11 to dissolve it. After the fertilizer has been immersed in the receiving cavity 11 for a set time, remove the filter container 2, and then stir the solution in the solution bottle 1 evenly with the stirring device 3. Finally, read the solid concentration in the solution through the electrode 42 of the pen-type TDS meter 4 to obtain the fertilizer dilution.

[0035] Obviously, the detection device used to detect fertilizer release rate only needs to use the filter container 2 to hold the fertilizer. After the fertilizer has dissolved for a set time, it can be taken out from the container cavity 11 of the solution bottle 1. Then, the solution is stirred evenly by the stirring device 3. Finally, the solid concentration is measured by the pen-type TDS meter 4 to obtain the fertilizer dilution. There is no need to use expensive supporting equipment.

[0036] To facilitate mechanized mixing of the solution without generating cleaning pressure, the stirring device 3 is preferably a magnetic stirrer, with the solution bottle 1 placed on the rotating disk 31 of the magnetic stirrer. When it is necessary to stir the liquid in the solution bottle 1, simply start the rotating disk 31 of the magnetic stirrer for a preset time.

[0037] Preferably, the magnetic stirrer includes a control system, a temperature control component, and a timer. The rotary disc 31, the temperature control component, and the timer are all electrically connected to the control system. The temperature control component can electromagnetically heat the solution bottle 1 to regulate the water temperature inside the solution bottle 1. Thus, the control system can automatically control the liquid temperature inside the solution bottle 1 and set the rotation time of the rotary disc 31, making operation more intelligent. Preferably, a magnetic stirrer with speed control function can be selected, allowing the rotation speed of the rotary disc 31 to be adjusted via the control system.

[0038] Preferably, to facilitate the replacement of water or solution, the solution bottle 1 is detachably placed on the rotary table 31. After one solution bottle 1 has been tested, it can be directly replaced with another solution bottle 1 containing water or solution, thus allowing for repeated testing of the fertilizer release rate, making the entire testing process not only simple but also efficient.

[0039] Preferably, the display screen 41 of the pen-type TDS meter 4 is connected to the electrode 42 of the pen-type TDS meter 4 via a wire 43, so that the electrode 42 of the pen-type TDS meter 4 can extend into the fertilizer receiving cavity 21. With this configuration, the electrode 42 of the pen-type TDS meter 4 can be attached to the fertilizer receiving cavity 21, allowing it to enter or exit the receiving cavity 11 along with the filter container 2. This simplifies the operation process by requiring only the removal or release of the filter container 2, further reducing operational difficulty.

[0040] Preferably, to avoid severe dripping or fertilizer leakage after the filter container 2 is removed from the receiving cavity 11, the filter holes 22 are located on the side wall of the filter container 2. With this arrangement, the weight of the fertilizer is mainly supported by the bottom of the filter container 2, and since the bottom of the filter container 2 does not have filter holes 22, the fertilizer will not fall into the receiving cavity 11 due to its own weight, thus avoiding significant impact on the test structure inside the receiving cavity 11.

[0041] Preferably, in order to ensure uniform dissolution of the fertilizer, the filter pores 22 are provided in multiple intervals, which are distributed circumferentially around the filter container 2 and axially along the filter container 2. Most preferably, the filter container 2 is a mesh structure.

[0042] To further coordinate with the stirring device 3 in stirring the solution within the receiving cavity 11, preferably, the detection device for detecting fertilizer release rate also includes a support 5, which is connected to a stirring rod 6 that extends into the receiving cavity 11. This arrangement ensures that when the rotary table 31 rotates the solution bottle 1, the stirring rod 6 remains stationary within the receiving cavity 11 of the solution bottle 1, allowing for relative movement between the two and further improving the stirring efficiency of the solution.

[0043] Preferably, the stirring rod 6 is suspended on the bracket 5 in a height-adjustable manner. With this configuration, when it is necessary to remove the solution bottle 1, the stirring rod 6 can be lifted first, and then the solution bottle 1 can be removed. In this way, during the process of stirring the solution, the stirring rod 6 can be inserted to the bottom of the receiving cavity 11, thereby making the stirring effect at various heights within the receiving cavity 11 more uniform.

[0044] Preferably, the detection device for detecting fertilizer release rate further includes a bracket 7. One outer wall of the bracket 7 has a horizontally oriented suspension clearance groove 71 along its center. The filter container 2 is connected to a handle 8, which is connected to multiple suspension rods 9. These suspension rods 9 are spaced apart along the height direction. The handle 8 can be inserted into the suspension clearance groove 71, and the suspension rods 9 abut against the top of the bracket 7. With this configuration, when the bracket 7 abuts against the lowest horizontally oriented suspension rod 9, the filter container 2 is located inside the receiving cavity 11. When the bracket 7 abuts against the lowest horizontally oriented suspension rod 9, the filter container 2 is located outside the receiving cavity 11. Thus, the filter container 2 can always be located within the vertical projection of the receiving cavity 11, preventing the wetted fertilizer or fertilizer solution from dripping into the external environment and causing hygiene problems.

[0045] In practical use, this detection device for testing fertilizer release rate involves filling the receiving cavity 11 of solution bottle 1 with clean water or solution, adjusting the water temperature to 10℃-60℃ using a magnetic stirrer, then placing the fertilizer whose release rate is to be tested into the receiving cavity of filter container 2, and immersing filter container 2 into receiving cavity 11. After the set dissolution time is reached, filter container 2 is removed from receiving cavity 11 and suspended on bracket 7. The control system of the magnetic stirrer then controls the turntable to rotate at 0-800 r / min. After the solution is thoroughly stirred, the fertilizer dilution is measured using a pen-type TDS meter 4. The pen-type TDS meter 4 has a conversion mode of EC / TDS. The scale of solution bottle 1 has a volume range of 100-500 ml, with 10 ml as the graduation unit.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A detection device for detecting fertilizer release rate, characterized in that, include: Solution bottle (1), the solution bottle (1) having a receiving cavity (11); A filter container (2) is capable of extending into and exiting the receiving cavity (11). The filter container (2) has a fertilizer receiving cavity (21) and is also provided with filter holes (22). The two ends of the filter holes (22) are respectively connected to the fertilizer receiving cavity (21) and the external environment. A stirring device (3) is used to stir the solution in the solution bottle (1); A pen-type TDS meter (4) is used to insert into the solution bottle (1) to detect the fertilizer dilution in the solution bottle (1).

2. The detection device for detecting fertilizer release rate according to claim 1, characterized in that, The stirring device (3) is a magnetic stirrer, and the solution bottle (1) is placed on the rotary table (31) of the magnetic stirrer.

3. The detection device for detecting fertilizer release rate according to claim 2, characterized in that, The magnetic stirrer has a control system, a temperature control component and a timer. The rotary table (31), the temperature control component and the timer are all electrically connected to the control system. The temperature control component can electromagnetically heat the solution bottle (1) to adjust the water temperature inside the solution bottle (1).

4. The detection device for detecting fertilizer release rate according to claim 2, characterized in that, The solution bottle (1) is detachably placed on the rotary table (31).

5. The detection device for detecting fertilizer release rate according to claim 1, characterized in that, The display screen (41) of the pen-type TDS meter (4) is connected to the electrode (42) of the pen-type TDS meter (4) via a wire (43) so that the electrode (42) of the pen-type TDS meter (4) can extend into the fertilizer accommodating cavity (21).

6. The detection device for detecting fertilizer release rate according to claim 1, characterized in that, The filter holes (22) are located on the side wall of the filter container (2).

7. The detection device for detecting fertilizer release rate according to claim 6, characterized in that, The filter holes (22) are provided in multiple ways, and the multiple filter holes (22) are distributed circumferentially around the filter container (2) and distributed axially along the filter container (2).

8. The detection device for detecting fertilizer release rate according to claim 2, characterized in that, The detection device for detecting fertilizer release rate also includes a support (5), which is connected to a stirring rod (6) that extends into the receiving cavity (11).

9. A detection device for detecting fertilizer release rate according to claim 8, characterized in that, The stirring rod (6) can be suspended vertically on the bracket (5).

10. The detection device for detecting fertilizer release rate according to claim 1, characterized in that, The detection device for detecting fertilizer release rate also includes a bracket (7), one of the outer side walls of the bracket (7) is provided with a suspension clearance groove (71) along the horizontal direction and along the middle of the bracket (7), the filter container (2) is connected to a handle (8), the handle (8) is connected to a plurality of suspension rods (9), the plurality of suspension rods (9) are distributed at intervals along the height direction, the handle (8) can be placed into the suspension clearance groove (71), and the suspension rods (9) are used to abut against the top of the bracket (7).

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