A fish breeding device for toxicity test

Abstract

The application discloses a fish culture device for toxicity test and relates to the field of fish culture.The fish culture device comprises a supporting frame and a mounting pipe, an elastic mechanism is arranged in the mounting pipe, the elastic mechanism comprises a spring, one end of the spring is provided with a movable block, a sliding groove and a drainage groove are formed in the inner wall of the mounting pipe, a dredging mechanism is arranged on the outer side of the mounting pipe, the dredging mechanism comprises a sleeve, and a fixing rod is arranged in the sleeve.The fish culture device is provided with the mounting pipe and the connecting pipe, a certain amount of Nash reagent is first put into a test tube, then the mouth of the test tube is sleeved on the connecting pipe, the sleeve is sleeved on the mounting pipe, then the fixing rod presses the movable block to extrude the spring and moves until the water in the drainage groove leaks out, and the water in the cylinder body is conveyed into the test tube, so that the accuracy of water sample taking can be more accurately controlled, water sample dropping on the desktop is prevented, and the operation convenience of the test is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fish farming, in particular to a fish farming device for toxicity test. BACKGROUND

[0002] Ammonia is a harmful substance with a wide range of sources, mainly from three sources, 1. The mucous membrane on the surface of fish. The smooth mucous membrane on the surface of fish is actually constantly metabolizing. After the new one grows, the old mucous membrane will directly fall off. These fallen mucous membranes will produce ammonia; 2. Fish feces. Fish are in the state of eating, drinking and defecating all their lives. The fish feces excreted will produce ammonia; 3. Food residue. There will be food residue falling during each feeding of fish. They are also a source of ammonia. Ammonia is less toxic in slightly acidic water, but the toxicity will become greater and greater in alkaline water. The content of ammonia in the fish tank should not exceed 0.05. If the ammonia content in the fish tank reaches 0.2, the fish in the fish tank will soon die. In order to facilitate the control of the concentration of ammonia nitrogen in water, the Nessler's reagent colorimetric method is generally used to preliminarily judge the concentration of ammonia nitrogen in water.

[0003] When the Nessler's reagent colorimetric method is used to detect the ammonia nitrogen content in water, first, a certain amount of Nessler's reagent is placed in a prepared test tube, then the water sample taken out is added to the test tube according to the specified proportion, and is shaken to make the ammonia nitrogen in the water sample fully react with the Nessler's reagent, so that the solution changes color. Then the color of the solution is compared with the colorimetric card to preliminarily judge the concentration of ammonia nitrogen in water. However, when the water sample is taken by a dropper, part of the water sample may fall through the dropper opening or the dropper outer wall to the desktop. Then manual cleaning is required, which is complicated and prone to errors. SUMMARY

[0004] Therefore, the present application aims to provide a fish farming device for toxicity test to solve the technical problem that part of the water sample falls through the dropper opening or the dropper outer wall to the desktop when the water sample is taken by a dropper, which is complicated and prone to errors.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fish farming device for toxicity test, comprising a support frame and a mounting pipe, the inside of the mounting pipe is provided with a telescopic mechanism, the telescopic mechanism comprises a spring, one end of the spring is provided with a movable block, the outer side of the movable block is provided with a sliding block, the inner wall of the mounting pipe is provided with a sliding groove and a drainage groove, the outer side of the mounting pipe is provided with a dredging mechanism, the dredging mechanism comprises a sleeve, the inside of the sleeve is provided with a fixed rod.

[0006] By adopting the technical scheme, firstly, a certain amount of Nash reagent is put into a test tube, then, the test tube opening is sleeved on the connecting pipe, the sealing ring is tightly attached to the test tube opening, then, the cover body is separated from the mounting pipe by rotating the cover body and using the threaded connection between the cover body and the mounting pipe, then, the sleeve ring is held by hand, the sleeve is sleeved on the mounting pipe, the fixed rod in the sleeve is penetrated through the plurality of sealing pieces and contacts the movable block with the continuous movement of the sleeve ring, then, the fixed rod presses the movable block to extrude the spring and moves until the hydrophobic groove leaks, the water in the cylinder body is conveyed into the test tube through the hydrophobic groove, the mounting pipe and the connecting pipe, and the effect of taking water sample is achieved, which is beneficial to control the flow rate of the water in the hydrophobic groove according to the pressing strength and depth of the fixed rod in the sleeve, beneficial to more accurately control the accuracy of water sample taking, and beneficial to prevent water sample from dripping on the desktop and improve the operation convenience of the test.

[0007] Further, the other end of the spring is provided with a mounting plate, a plurality of through holes are formed in the mounting plate.

[0008] By adopting the technical scheme, by providing a plurality of through holes, it is beneficial to prevent particulate matter in the cylinder body from flowing into the test tube.

[0009] Further, the movable block is slidably connected with the sliding groove through the sliding block, and the inner wall of the mounting pipe is attached to the movable block.

[0010] By adopting the technical scheme, by attaching the inner wall of the mounting pipe to the movable block, it is beneficial to prevent water in the cylinder body from flowing out through a path other than the hydrophobic groove.

[0011] Further, the other end of the movable block is provided with a sealing mechanism, the sealing mechanism comprises a sealing piece, and a placing groove is formed in the movable block.

[0012] By adopting the technical scheme, by providing the sealing piece, it is beneficial to block the water flowing out of the cylinder body and prevent the water in the cylinder body from flowing out when no test is performed.

[0013] Further, the sealing piece is provided with a plurality of sealing pieces, the plurality of sealing pieces are in a conical structure, and the surfaces of the plurality of sealing pieces are attached to the placing groove.

[0014] By adopting the technical scheme, by making the plurality of sealing pieces in a conical structure, it is beneficial to enhance the compression resistance of the sealing piece and further enhance the sealing strength of the mounting pipe to water.

[0015] Further, the plurality of sealing pieces are fixedly connected with the inner wall of the mounting pipe, and the sealing piece is made of rubber material.

[0016] By adopting the above technical scheme, the gap between the two sealing sheets is further reduced, and the plurality of sealing sheets are separated by utilizing the flexibility of the rubber.

[0017] Further, the top of the support frame is provided with a cylinder body, one side of the cylinder body is communicated with the mounting pipe, and the other side of the cylinder body is provided with a filtering mechanism.

[0018] By adopting the above technical scheme, when the ammonia nitrogen content in the cylinder body exceeds the standard detected by the Nessler's reagent, the number of nitrifying bacteria in the cylinder body is increased by using external medicine, and the medicine is rapidly diffused by the filtering mechanism, and the nitrifying bacteria system is rapidly established by using the bacteria culture block in the filtering mechanism.

[0019] Further, the outer surface of the mounting pipe away from the cylinder body is threadedly connected with a cover body, the side of the sleeve away from the cylinder body is provided with a support plate, and the support plate is provided with an annular groove.

[0020] By adopting the above technical scheme, the sleeve is sleeved on the mounting pipe, and the detection of the ammonia nitrogen concentration in water by the Nessler's reagent is facilitated.

[0021] Further, the support plate is fixedly connected with a fixing rod, the end of the fixing rod is a conical structure, and the outer surface of the sleeve is provided with a sleeve ring.

[0022] By adopting the above technical scheme, the plurality of sealing sheets are opened by the fixing rod, and then the water in the cylinder body flows into the test tube.

[0023] Further, the side of the support plate away from the sleeve is communicated with a connecting pipe, the connecting pipe is an L-shaped structure, the other end of the connecting pipe is provided with a sealing ring on the outer side, the test tube is arranged on the outer side of the sealing ring, and the sealing ring is attached to the inner wall of the test tube.

[0024] By adopting the above technical scheme, the test tube is mounted on the connecting pipe, and the sealing property between the test tube and the connecting pipe is enhanced by the sealing ring.

[0025] In summary, the present application mainly has the following advantages:

[0026] 1. The application is equipped with a pipe and a connecting pipe, when the concentration of ammonia nitrogen in the cylinder needs to be detected, first, a certain amount of Nash reagent is put into the test tube, then the test tube port is sleeved on the connecting pipe, the sealing ring is tightly fitted with the test tube port, then the cover body is separated from the mounting pipe by rotating the cover body, the cover body is separated from the mounting pipe by using the threaded connection between the cover body and the mounting pipe, then the sleeve ring is held with the hand, the sleeve is sleeved on the mounting pipe, the fixed rod in the sleeve is penetrated through the plurality of sealing pieces and contacted with the movable block with the continuous movement of the sleeve ring, then the fixed rod presses the movable block to extrude the spring and moves until the hydrophobic groove leaks, the water in the cylinder is transported to the test tube through the hydrophobic groove, the mounting pipe and the connecting pipe, and the effect of taking water sample is achieved, which is beneficial to control the flow rate of water in the hydrophobic groove according to the pressing strength and depth of the fixed rod in the sleeve, beneficial to more accurately control the accuracy of water sample taking, beneficial to prevent water sample from dripping on the desktop and improve the operation convenience of the test;

[0027] 2. The application is equipped with a filtering mechanism, when the ammonia nitrogen content in the cylinder is detected by Nash reagent, the number of nitrifying bacteria in the cylinder is increased by using external medicine, the medicine is diffused quickly by the filtering mechanism, and the nitrifying bacteria system is quickly established by using the bacteria culture block in the filtering mechanism, which is beneficial to quickly decompose ammonia nitrogen in water and reduce the mortality rate of fish breeding. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the three-dimensional structure of the application;

[0029] Figure 2 is a schematic diagram of the cross-sectional three-dimensional structure of the mounting pipe of the application;

[0030] Figure 3 is a schematic diagram of the three-dimensional structure of the movable block of the application;

[0031] Figure 4 is a schematic diagram of the cross-sectional three-dimensional structure of the sleeve of the application;

[0032] Figure 5 is a schematic diagram of the three-dimensional structure of the connecting pipe of the application;

[0033] Figure 6 is a schematic diagram of the three-dimensional structure of the cover body of the application.

[0034] In the figure: 1. support frame; 2. cylinder body; 3. mounting pipe; 4. telescopic mechanism; 401. slide groove; 402. drain groove; 403. spring; 404. mounting plate; 405. through hole; 406. movable block; 407. slider; 5. sealing mechanism; 501. sealing sheet; 502. placement groove; 6. cover body; 7. dredging mechanism; 701. sleeve; 702. support plate; 703. fixing rod; 704. collar; 705. connecting pipe; 706. sealing ring; 8. test tube; 9. filtering mechanism. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0036] The following describes an embodiment of the present invention based on its overall structure.

[0037] A fish culture device for toxicity testing, such as Figures 1-6 As shown, it includes a support frame 1 and a mounting tube 3, a telescopic mechanism 4 is arranged inside the mounting tube 3, the telescopic mechanism 4 includes a spring 403, a movable block 406 is arranged at one end of the spring 403, a slider 407 is arranged on the outside of the movable block 406, a sliding groove 401 and a drain groove 402 are opened on the inner wall of the mounting tube 3, a dredging mechanism 7 is arranged on the outside of the mounting tube 3, the dredging mechanism 7 includes a sleeve 701, and a fixing rod 703 is arranged inside the sleeve 701.

[0038] See Figure 1 、 2 and 5. A mounting plate 404 is provided at the other end of the spring 403. A through hole 405 is provided on the mounting plate 404. There are multiple through holes 405. By providing multiple through holes 405, it is helpful to prevent the particles in the cylinder 2 from flowing into the test tube 8, and effectively prevent the particles from being blocked in the mounting tube 3.

[0039] See Figure 1 、 2 3, the movable block 406 is slidably connected to the slide groove 401 through the slider 407, and the movable block 406 is in contact with the inner wall of the mounting tube 3. By making the movable block 406 in contact with the inner wall of the mounting tube 3, it is beneficial to prevent the water in the cylinder body 2 from flowing out through the passage outside the hydrophobic groove 402, thereby improving the structural stability of the device.

[0040] See Figure 1 、 2And 3, the other end of the movable block 406 is provided with a sealing mechanism 5, the sealing mechanism 5 comprises a sealing sheet 501, the inside of the movable block 406 is provided with a placing groove 502, by the setting of the sealing sheet 501, it is favorable to the water in the cylinder 2 that flows out is prevented from flowing out in the water in the cylinder 2 when not being tested, enhance the practicability of the device.

[0041] Referring to Figure 1 、 2 And 3, the plurality of sealing sheets 501 are conical structure, the surface of the plurality of sealing sheets 501 is attached with the placing groove 502, by the plurality of sealing sheets 501 being conical structure, it is favorable to enhance the compression resistance of the sealing sheet, further strengthen the sealing strength of the installation pipe 3 to water, improve the implementability of the device in high pressure environment.

[0042] Referring to Figure 2 The material of the sealing sheet 501 is rubber material, by setting the sealing sheet 501 as rubber material, further reduce the gap between the two sealing sheets 501, it is favorable to utilize the flexible characteristics of rubber, make the plurality of sealing sheets 501 separate, make the device use more convenient.

[0043] Referring to Figure 1 And 2 The top of the support frame 1 is provided with the cylinder 2, one side of the cylinder 2 is communicated with the installation pipe 3, the other side of the cylinder 2 is provided with a filtering mechanism 9, when the ammonia nitrogen content in the cylinder is detected by using the nessler reagent, the number of nitrifying bacteria in the cylinder 2 is increased by using external medicine, by the filtering mechanism 9, it is favorable to quickly diffuse the medicine, and the nitrifying bacteria system is quickly established by using the bacteria culture block inside the filtering mechanism 9, it is favorable to the rapid decomposition of ammonia nitrogen in water, reduce the mortality of fish culture.

[0044] Referring to Figure 1 、 2 , 4 and 6, the outer surface of the one end of the installation pipe 3 away from the cylinder 2 is threadedly connected with the cover 6, the one side of the sleeve 701 away from the cylinder 2 is provided with a support plate 702, the support plate 702 is provided with an annular groove, by the setting of the sleeve 701, it is favorable to make the sleeve 701 be sleeved on the installation pipe 3, facilitate the detection of ammonia nitrogen concentration in water by the nessler reagent, enhance the use convenience of the device.

[0045] Referring to Figure 1 、 2, 4 and 5, the support plate 702 is fixedly connected with the fixed rod 703, the end of the fixed rod 703 is of a conical structure, the outer surface of the sleeve 701 is provided with a sleeve ring 704, by setting the end of the fixed rod 703 as a conical structure, it is beneficial to top off the plurality of sealing sheets by the fixed rod 703, and then make the water in the cylinder 2 flow into the test tube 8, and it is beneficial to control the flow rate of the water in the water drain groove 402 according to the pressing strength and depth of the fixed rod 703 in the sleeve 701.

[0046] In some other embodiments, by setting the filtering mechanism 9, when the ammonia nitrogen content in the cylinder 2 is detected by the Nessler's reagent to be excessive, the number of nitrifying bacteria in the cylinder 2 is increased by using external drugs, the filtering mechanism 9 is beneficial to quickly diffuse the drugs, and the nitrifying bacteria system is quickly established by using the bacteria culture block in the filtering mechanism 9, which is beneficial to quickly decompose the ammonia nitrogen in the water body and reduce the mortality of fish breeding, and the water in the cylinder is quickly filtered to screen out impurities in the water, which is beneficial to the health of the water body and reduces the mortality of fish.

[0047] The implementation principle of the embodiment is that: when it is necessary to detect the concentration of ammonia nitrogen in the cylinder 2, first, a certain amount of Nessler's reagent is put into the test tube 8, then, the test tube 8 is sleeved on the connecting pipe 705, the sealing ring 706 is tightly attached to the mouth of the test tube 8, then, the cover body 6 is separated from the mounting pipe 3 by rotating the cover body 6 and using the threaded connection between the cover body 6 and the mounting pipe 3, then, the sleeve ring 704 is held by hand, the sleeve 701 is sleeved on the mounting pipe 3, the fixed rod 703 in the sleeve 701 is in contact with the movable block 406 by the continuous movement of the sleeve ring 704, then, the fixed rod 703 presses and moves the movable block 406 to extrude the spring 403, until the water drain groove 402 leaks, the water in the cylinder 2 is transported into the test tube 8 through the water drain groove 402, the mounting pipe 3 and the connecting pipe 705, and the effect of taking water sample is achieved, which is beneficial to control the flow rate of the water in the water drain groove 402 according to the pressing strength and depth of the fixed rod 703 in the sleeve 701, beneficial to more accurately control the accuracy of water sample taking, and beneficial to prevent water sample from dripping on the desktop and improve the operation convenience of the test.

[0048] The parts not involved in the application are the same as or can be realized by the prior art, and will not be described in detail here.

[0049] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A fish culture device for toxicity testing, comprising a support frame (1) and a mounting pipe (3), characterized in that: A telescopic mechanism (4) is provided inside the mounting tube (3), the telescopic mechanism (4) includes a spring (403), a movable block (406) is provided at one end of the spring (403), a slider (407) is provided on the outside of the movable block (406), a sliding groove (401) and a drain groove (402) are provided on the inner wall of the mounting tube (3), a dredging mechanism (7) is provided on the outside of the mounting tube (3), the dredging mechanism (7) includes a sleeve (701), and a fixing rod (703) is provided inside the sleeve (701); The movable block (406) is slidably connected to the slide groove (401) via the slider (407), and the movable block (406) is in contact with the inner wall of the mounting tube (3); The other end of the movable block (406) is provided with a sealing mechanism (5), the sealing mechanism (5) comprising a sealing sheet (501), and a placement groove (502) is provided inside the movable block (406); A plurality of the sealing sheets (501) are provided, and the plurality of sealing sheets (501) are in a conical structure, and the surfaces of the plurality of sealing sheets (501) are in contact with the placement groove (502).

2. The fish culture device for toxicity testing according to claim 1, characterized in that: The other end of the spring (403) is provided with a mounting plate (404), and a through hole (405) is provided on the mounting plate (404), and a plurality of through holes (405) are provided.

3. The fish culture device for toxicity testing according to claim 1, characterized in that: The plurality of sealing sheets (501) are fixedly connected to the inner wall of the mounting tube (3), and the sealing sheets (501) are made of rubber material.

4. The fish culture device for toxicity testing according to claim 1, characterized in that: A cylinder body (2) is provided on the top of the support frame (1), one side of the cylinder body (2) is connected to the mounting pipe (3), and a filtering mechanism (9) is provided on the other side of the cylinder body (2).

5. The fish culture device for toxicity testing according to claim 1, characterized in that: The outer surface of one end of the mounting tube (3) away from the cylinder body (2) is threadedly connected to a cover body (6), and a support plate (702) is provided on the side of the sleeve (701) away from the cylinder body (2), and an annular groove is provided on the support plate (702).

6. The fish culture device for toxicity testing according to claim 5, characterized in that: The support plate (702) is fixedly connected to the fixing rod (703), the end of the fixing rod (703) is a conical structure, and the outer surface of the sleeve (701) is provided with a collar (704).

7. The fish culture device for toxicity testing according to claim 5, characterized in that: The side of the support plate (702) away from the sleeve (701) is connected to a connecting tube (705), and the connecting tube (705) is in an "L"-shaped structure. A sealing ring (706) is provided on the outside of the other end of the connecting tube (705), and a test tube (8) is provided on the outside of the sealing ring (706), and the sealing ring (706) is in contact with the inner wall of the test tube (8).

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