CN217794642U - Pesticide is to experimental extraction device of toxicity of loach - Google Patents
Pesticide is to experimental extraction device of toxicity of loach Download PDFInfo
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- CN217794642U CN217794642U CN202222092496.2U CN202222092496U CN217794642U CN 217794642 U CN217794642 U CN 217794642U CN 202222092496 U CN202222092496 U CN 202222092496U CN 217794642 U CN217794642 U CN 217794642U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The utility model relates to a pesticide is to experimental extraction device of toxicity of loach. At present, due to unreasonable use of pesticides, loaches are often poisoned, and toxicity tests in safety evaluation of the pesticides on the loaches can detect the toxicity influence of the pesticide concentration on the loaches. The utility model provides a pesticide is to experimental extraction element of toxicity of loach, its constitution includes: the testing cup comprises a testing cup (1), wherein a filter cover (2) is placed at the top of the testing cup, the inner wall of the filter cover is connected with the outer cylinder wall of a liquid storage cylinder (3) through a threaded structure, the top of the liquid storage cylinder is connected with a pressing cylinder (4), the inner wall of the pressing cylinder is connected with the outer cylinder wall of the liquid storage cylinder through a threaded structure, one end of the filter cover is connected with one end of the liquid storage cylinder through a threaded structure, the filter cover is of an integrated structure consisting of an annular skirt plate (2-1), a liquid outlet pipe (2-2), a filter plate (2-3) and a filter shell (2-4), the top of the filter shell is connected with the liquid outlet pipe, and the filter shell is internally provided with a filter plate. The utility model discloses be applied to the aquatic products field.
Description
Technical Field
The utility model relates to a pesticide is to experimental extraction device of toxicity of loach.
Background
At present, loaches are bred in a rice field in a shallow water environment of the rice field, so that rice and loaches are bred, the unit area benefit of the rice field is improved, the rice field is a comprehensive ecological system, people fertilize and irrigate the rice field in the rice planting process, a lot of nutrition of the rice field is hunted by animals, plants and the like which are symbiotic with the rice, so that waste of water and fertilizer is caused, when the loaches are placed in the rice field, the whole system is changed, as the loaches can eat almost all biological communities for robbing the nutrients of the rice field, the loss of the fertilizer of the rice field and the erosion of harmful insects are reduced, and meanwhile, the loach excrement is also a high-quality fertilizer of the rice, so that the growth of the rice can be greatly promoted.
However, in rice fields where loaches are cultivated, the amount of pesticide used for safe fertilization is very important, and due to improper use of the pesticide, poisoning of the loaches often occurs. Therefore, the loaches are cultured in the rice field, the problem of fertilization and medication in the rice field needs to be solved to achieve the purpose of double harvest of the rice and the loaches to obtain high yield and high benefit, and the toxicity test in the safety evaluation of the pesticide on the loaches can detect the toxicity influence of the concentration of the pesticide on the loaches.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pesticide is to experimental extraction device of toxicity of loach.
The above purpose is realized by the following technical scheme:
the utility model provides a pesticide is to experimental extraction element of toxicity of loach, its constitution includes: the test cup, the top of test cup placed the filter lid, the inner wall of filter lid passes through the helicitic texture and is connected with the outer tube wall of liquid storage cylinder, the top of liquid storage cylinder is connected with the pressure cylinder, and the inner wall of pressure cylinder passes through the helicitic texture and is connected with the outer tube wall of liquid storage cylinder, wherein, the helicitic texture is passed through to the one end of filter lid and liquid storage cylinder and is connected, can make things convenient for the dismantlement of filter lid, thereby when the liquid storage cylinder is invertd, can pour pesticide powder and aqueous solution into the liquid storage cylinder, and adopt the helicitic texture between liquid storage cylinder and the pressure cylinder, be in order to make the pressure cylinder rotate on the liquid storage cylinder, owing to adopt the helicitic texture, consequently every turn round descending distance can be the same when the pressure cylinder rotates, can drive rubber piston downstream together through the push rod when the pressure cylinder descends, thereby can send out the liquid medicine after the extraction from the liquid storage cylinder through rubber piston, adopt above-mentioned structure can be more accurate in sending into the liquid medicine after the extraction in the test cup, with quantitative injection of liquid medicine in the test cup, through observing the difference of dosage concentration, can better grasp the toxicity of different pesticides to the loach.
The filter cover is of an integrated structure consisting of an annular apron plate, a liquid outlet pipe, a filter plate and a filter shell, the top of the filter shell is connected with the liquid outlet pipe, the filter plate is arranged in the filter shell, and the outer wall of the filter shell is connected with the apron plate; the liquid storage cylinder is of a transparent hollow cylindrical structure, the bottom of the liquid storage cylinder is arranged at the top of the filter plate, and a rubber piston 5 is arranged in the liquid storage cylinder;
the apron board on the filter cover mainly plays a supporting role in order to support the filter cover on the top of the test cup; the pressing cylinder is of an integrated structure consisting of a push plate, a rotary drum and a push rod, the rotating top of the pressing cylinder is connected with the push plate, the circle center of the push plate is vertically connected with the push rod, and a rubber piston is sleeved on a push block at the end part of the push rod.
The toxicity test extraction device of pesticide to loach, the face of filter on seted up a set of outage, and the top of filter has laid filter paper, filter paper is fixed between the filter in liquid storage cylinder and the filter bowl, can filter the pesticide powder after the extraction is accomplished through setting up filter paper, avoid the pesticide powder to enter into in the test cup.
The toxicity test extraction device of pesticide to loach, the test cup be the glass material, and seted up the inlet port on the test cup, set up the inlet port on the test cup and be when the filter lid is in the test cup top, can make the air enter into the test cup through the inlet port in, the drain pipe of avoiding on the filter lid through the atmospheric pressure of test cup has the liquid outflow.
The utility model discloses the beneficial effect who reaches is:
1. the utility model discloses a keep the state of closing soon all the time between pressure section of thick bamboo and the liquid storage cylinder, will press section of thick bamboo and liquid storage cylinder to put the back after will waiting to detect the pesticide powder pour into the liquid storage cylinder in with experimental water pour into the liquid storage cylinder in, soak the pesticide in selected experimental water, through the pesticide of stirring rod in to the liquid storage cylinder and experimental water intensive mixing, utilize the soluble substance of experimental water in with the pesticide powder to dissolve in wherein and separate, accomplish extraction work, and adopt helicitic texture between pressure section of thick bamboo and the liquid storage cylinder, because do not rotate the distance that the round descends when pressing the section of thick bamboo to rotate the same, thereby can with the liquid medicine of extraction in the liquid storage cylinder can be quantitative send into the test cup in, thereby can be better in the observation test cup different concentrations to the toxicity test of liquid medicine to the loach.
2. The utility model is convenient in operation, can carry out solid-liquid extraction with experimental water and powder through the device, the liquid medicine after extracting through the extraction after the extraction is accomplished is experimental to the toxicity of loach, and the liquid medicine of different concentration that can be better is to the state of loach in experimental aquatic, according to the reasonable use that the toxicity test of loach was used for the pesticide, effectively avoids the poisonous thing of loach to take place.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the connection of the liquid storage cylinder and the pressing cylinder;
FIG. 4 is a schematic structural view of the press cylinder;
FIG. 5 isbase:Sub>A sectional view A-A of FIG. 4;
FIG. 6 is a schematic structural view of a reservoir;
FIG. 7 is a sectional view taken along line B-B of FIG. 6;
FIG. 8 is a schematic view of the filter cover;
FIG. 9 is a cross-sectional view C-C of FIG. 8;
1. the device comprises a test cup, 2 parts of a filter cover, 3 parts of a liquid storage cylinder, 4 parts of a pressing cylinder, 5 parts of a rubber piston, 6 parts of filter paper, 7 parts of an air inlet hole, 2-1 parts of a skirt board, 2-2 parts of a liquid outlet pipe, 2-3 parts of a filter plate, 2-4 parts of a filter shell, 2-5 parts of a liquid outlet hole, 4-1 parts of a push plate, 4-2 parts of a rotary cylinder, 4-3 parts of a push rod.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1:
according to the illustration in figures 1-9, an extraction device for toxicity test of pesticides on loaches comprises: test cup 1, test cup's top placed filter cap 2, filter cap's inner wall passes through the helicitic texture and is connected with the outer tube wall of liquid storage cylinder 3, the top of liquid storage cylinder is connected with pressure section of thick bamboo 4, and the inner wall of pressure section of thick bamboo passes through the helicitic texture and is connected with the outer tube wall of liquid storage cylinder, wherein, the helicitic texture is passed through to filter cap and the one end of liquid storage cylinder, can make things convenient for filter cap's dismantlement, thereby when the liquid storage cylinder is invertd, can pour pesticide powder and aqueous solution into the liquid storage cylinder, and adopt the helicitic texture between liquid storage cylinder and the pressure section of thick bamboo, be in order to make the pressure section of thick bamboo rotate on the liquid storage cylinder, owing to adopt the helicitic texture, consequently every distance that rotates the round decline when the pressure section of thick bamboo rotates can be the same, can drive rubber piston downstream together through the push rod when the pressure section of thick bamboo descends when descending, thereby can send out the liquid medicine after the extraction from the liquid storage cylinder through rubber piston, adopt in the liquid medicine after the more accurate loach will be sent into test cup, with the quantitative injection of liquid medicine, through observing the difference of concentration of different pesticides of dose, the concentration of mastering that can be better to the loach.
The filter cover is of an integrated structure consisting of an annular apron plate 2-1, a liquid outlet pipe 2-2, a filter plate 2-3 and a filter shell 2-4, the top of the filter shell is connected with the liquid outlet pipe, the filter plate is arranged in the filter shell, and the outer wall of the filter shell is connected with the apron plate; the liquid storage cylinder is of a transparent hollow cylindrical structure, the bottom of the liquid storage cylinder is arranged at the top of the filter plate, and a rubber piston 5 is arranged in the liquid storage cylinder;
the apron board on the filter cover mainly plays a supporting role in order to support the filter cover on the top of the test cup; the pressing cylinder is an integrated structure consisting of a push plate 4-1, a rotary drum 4-2 and a push rod 4-3, the rotating top is connected with the push plate, the circle center of the push plate is vertically connected with the push rod, and a rubber piston is sleeved on a push block at the end part of the push rod.
Example 2:
according to the device for extracting the toxicity test of the pesticide on the loaches in the embodiment 1, the plate surface of the filter plate is provided with the group of liquid drainage holes 2-5, the top end of the filter plate is paved with the filter paper 6, the filter paper is fixed between the liquid storage cylinder and the filter plate in the filter cover, and the extracted pesticide powder can be filtered by arranging the filter paper, so that the pesticide powder is prevented from entering the test cup.
Example 3:
according to embodiment 1 or 2, the test cup is made of glass, the air inlet hole 7 is formed in the test cup, the air inlet hole is formed in the test cup, when the filter cover covers the test cup, air can enter the test cup through the air inlet hole, and liquid can be prevented from flowing out of the liquid outlet pipe in the filter cover through the atmospheric pressure of the test cup.
Example 4:
the working principle is as follows:
firstly, sampling water in a test rice field is taken, the sampling water is poured into a test cup, the distance between an air inlet hole on the cup and the liquid level of the sampling water is about 30mm, loach for testing is put into the test cup, a filter cover is unscrewed from a liquid storage cylinder, a pressing cylinder and the liquid storage cylinder are always kept in a screwing state, pesticide powder to be detected is poured into the liquid storage cylinder after the pressing cylinder and the liquid storage cylinder are placed upside down, test water is poured into the liquid storage cylinder, the pesticide is soaked in the selected test water, the pesticide and the test water in the liquid storage cylinder are fully stirred by a stirring rod, soluble substances in the pesticide powder are dissolved in the test water for separation, extraction work is finished, then filter paper with the same diameter as that of the liquid storage cylinder is placed at the top of the liquid storage cylinder, the filter cover is screwed into the outer cylinder wall of the liquid storage cylinder through a threaded structure, at the moment, the filter paper is fixed between the filter cover and the pressing cylinder, then the pressing cylinder, the liquid storage cylinder and the filter cover are inverted for 180 degrees, the apron plate on the filter cover is placed at the top of the test cup, the liquid outlet pipe on the filter cover is arranged in the test cup, because the test cup is provided with the air inlet, the atmospheric pressure in the test cup can not enable the extracted solution in the liquid storage cylinder to flow out of the liquid outlet pipe, a tester rotates the push plate on the pressing cylinder, the push plate and the rotary cylinder are of an integral structure, and the rotary cylinder is connected with the liquid storage cylinder through a threaded structure, when the push plate is rotated, the push plate drives the rotary cylinder to rotate, when the rotary cylinder vertically moves downwards, the push rod on the push plate is driven to move together, so that the rubber piston is vertically downwards pushed through the push rod, the liquid medicine in the liquid storage cylinder is sent into the test cup from the liquid outlet pipe on the filter cover through the rubber piston, the rubber piston can be uniformly pushed through different circles of rotating the push plate, therefore, the liquid medicine can be more accurately fed into the test cup, the situation of the loaches in the test cup is observed according to different medicine feeding amounts, and the toxicity of the liquid medicine with different concentrations to the loaches is observed.
Claims (4)
1. The utility model provides a pesticide is to experimental extraction element of toxicity of loach, its constitution includes: test cup: the method is characterized in that: a filter cover is arranged at the top of the test cup, the inner wall of the filter cover is connected with the outer cylinder wall of the liquid storage cylinder through a threaded structure, the top of the liquid storage cylinder is connected with a pressing cylinder, and the inner wall of the pressing cylinder is connected with the outer cylinder wall of the liquid storage cylinder through a threaded structure;
the filter cover is of an integrated structure consisting of an annular apron plate, a liquid outlet pipe, a filter plate and a filter shell, the top of the filter shell is connected with the liquid outlet pipe, the filter plate is arranged in the filter shell, and the outer wall of the filter shell is connected with the apron plate;
the liquid storage cylinder is of a transparent hollow cylindrical structure, the bottom of the liquid storage cylinder is arranged at the top of the filter plate, and a rubber piston is arranged in the liquid storage cylinder;
the pressing cylinder is of an integrated structure consisting of a push plate, a rotary drum and a push rod, the rotating top of the pressing cylinder is connected with the push plate, the circle center of the push plate is vertically connected with the push rod, and a rubber piston is sleeved on a push block at the end part of the push rod.
2. The device for extracting the toxicity test of the pesticide on the loaches as claimed in claim 1, which is characterized in that: the board of filter on seted up a set of outage, and the top of filter has laid filter paper.
3. The device for extracting the toxicity test of the pesticide on the loaches as claimed in claim 1, which is characterized in that: the test cup is made of glass and is provided with an air inlet.
4. The device for extracting the toxicity test of the pesticide on the loaches as claimed in claim 1, which is characterized in that: the diameter of the apron plate on the filter cover is larger than that of the test cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222092496.2U CN217794642U (en) | 2022-08-03 | 2022-08-03 | Pesticide is to experimental extraction device of toxicity of loach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222092496.2U CN217794642U (en) | 2022-08-03 | 2022-08-03 | Pesticide is to experimental extraction device of toxicity of loach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217794642U true CN217794642U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222092496.2U Active CN217794642U (en) | 2022-08-03 | 2022-08-03 | Pesticide is to experimental extraction device of toxicity of loach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217794642U (en) |
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2022
- 2022-08-03 CN CN202222092496.2U patent/CN217794642U/en active Active
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