Aquaculture drug residue detection equipment

Abstract

The invention discloses aquaculture drug residue detection equipment, and relates to the technical field of veterinary drug residue detection, the aquaculture drug residue detection equipment comprises a rack, a mixing container and a plurality of single containers are arranged in the rack, a detection liquid box is arranged above the rack, and liquid storage cavities with the same number as the single containers are uniformly arranged in an inner cavity of the detection liquid box; the lower portion of each liquid storage cavity is communicated with a connecting pipe, the circumferential face of each connecting pipe is sequentially provided with a first liquid guide pipe and a second liquid guide pipe from top to bottom, each connecting pipe is communicated with the corresponding single container through the first liquid guide pipe, and all the connecting pipes are jointly communicated with the mixing container through the second liquid guide pipe. According to the invention, a plurality of detection liquids can be automatically and uniformly separated into a plurality of single containers, then the plurality of detection liquids are mixed into an equivalent detection liquid, and the mixed detection liquid is separated into a mixing container, so that the function of automatic liquid separation is realized, the detection efficiency is improved, and accurate evaluation and reliable comparison of drug residue concentration are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of veterinary drug residue detection, in particular to aquaculture drug residue detection equipment. Background Art

[0002] my country is a major fishery producer with rich aquatic product resources and a huge consumer market. However, in the process of aquaculture production, in order to prevent and treat various diseases and obtain higher economic benefits, the phenomenon of misusing and abusing various drugs is common. If people consume aquatic products with excessive drug residues for a long time, it may cause drug accumulation, leading to adverse consequences such as body poisoning, metabolic disorders, allergies and hypersensitivity, bacterial resistance, etc., which seriously affect the health of consumers. Veterinary drugs are often used in aquaculture to treat diseases or prevent parasites and other problems. Veterinary drug residue detection mainly targets the active ingredients of veterinary drugs, such as antibiotics, antiparasitic drugs, antifungal drugs, etc. The purpose of the test is to ensure whether the residues of these veterinary drugs in aquaculture water meet the limit requirements of national and international standards.

[0003] When conducting drug residue detection in aquaculture, in order to improve the accuracy of the detection, it is usually necessary to collect multiple samples, process the samples, obtain multiple test liquids, and then react the test liquids with the dissolving liquids. By observing the color change of the liquids and comparing them with the colorimetric card, the value of the drug residue concentration is obtained. However, in the prior art, most of the liquid separation operations are performed manually, resulting in deviations in the volume of each test liquid, which not only reduces the detection efficiency but also affects the accuracy of the detection. At the same time, in order to increase the accuracy and reliability of the detection, it is also necessary to mix multiple original samples into one test liquid. In the prior art, most of the mixing operations are completed manually by the test personnel, which is not only inefficient but also cannot ensure that the volume of the mixed test liquid is the same as the volume of the test liquid obtained through the original sample.

[0004] In response to the above problems, a Chinese patent with announcement number CN109406511B discloses a detection device and a detection method for drug residues on the surface of agricultural products, including a detection device body, a display panel is installed on the outer surface of the upper end of the detection device body, a delivery port is opened on one side of the display panel, an external water pipe is installed on the side of the detection device body close to the upper end, a detection mechanism is installed on the surface of the side of the detection device body close to the bottom end, a detection mechanism cover is movably installed on the detection mechanism, and a No. 1 sealing cover and a No. 2 sealing cover are opened on the inner side of the detection mechanism cover.

[0005] During the detection, the above patent can only make multiple identical detection liquids react with the dissolving liquid each time to obtain the detection result of the residue concentration. In order to improve the accuracy of the detection, it is necessary to replace the source of the detection liquid and perform multiple detection operations. The operation is cumbersome and reduces the detection efficiency. Based on this, the present invention proposes an aquaculture drug residue detection device. Summary of the invention

[0006] The purpose of the present invention is to provide an aquaculture drug residue detection device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is: Aquaculture drug residue detection equipment, including a frame, the inside of the frame is arranged with a mixing container and a plurality of single containers, a detection liquid tank is arranged above the frame, the inner cavity of the detection liquid tank is evenly provided with liquid storage cavities with the same number as the single containers, each liquid storage cavity is connected with a connecting pipe below, the circumferential surface of each connecting pipe is sequentially installed with a first liquid guide pipe and a second liquid guide pipe from top to bottom, each connecting pipe is respectively connected with the corresponding single container through the first liquid guide pipe, and all the connecting pipes are commonly connected with the mixing container through the second liquid guide pipe; The inner cavity of each connecting tube is slidably connected to a liquid receiving tube, and a through hole communicating with the connecting tube is opened on the circumferential surface of the liquid receiving tube. The liquid receiving tube slides axially along the inner cavity of the connecting tube, so that the through hole is communicated with the first liquid guide tube and the second liquid guide tube respectively, so that the detection liquid in the liquid storage cavity is respectively injected into the single container and the mixing container, and the capacity of the detection liquid in the single container and the mixing container is consistent.

[0008] Preferably, the lower end of each liquid receiving tube is provided with a piston rod which drives the liquid receiving tube to perform piston-like motion in the inner cavity of the corresponding connecting tube.

[0009] Preferably, a driving rod is installed at one end of all piston rods away from the liquid receiving tube, and the other end of the driving rod is connected to a vertical slider, and the vertical slider makes a linear motion in the vertical direction in the vertical guide rail to drive the driving rod to move synchronously.

[0010] Preferably, a horizontally arranged transverse guide rail is installed at one end of the vertical slider away from the vertical guide rail, and a transverse slider is slidably connected in the transverse guide rail; A motor and a chain transmission component are installed in the frame and are arranged parallel to the transverse guide rail. The output end of the motor is in transmission connection with the chain transmission component, and the transverse slider is in transmission connection with the chain transmission component. The chain transmission component includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket and a fifth sprocket, the first sprocket is located above the second sprocket, the second sprocket is located above the third sprocket, the third sprocket is located above the fourth sprocket, the fourth sprocket and the fifth sprocket are located on the same horizontal line, and a chain is commonly sleeved between the first sprocket, the second sprocket, the third sprocket, the fourth sprocket and the fifth sprocket; In the chain, the portion located at the second sprocket and the third sprocket is arranged in parallel with the transverse guide rail, and the portion located at the fourth sprocket and the fifth sprocket is arranged in parallel with the transverse guide rail.

[0011] Preferably, in the chain, the length of the chain links located at the second sprocket and the third sprocket is recorded as L1, and the length of the chain links located at the fourth sprocket and the fifth sprocket is recorded as L2, and the ratio of L1 to L2 is N, where N is the number of liquid storage chambers.

[0012] Preferably, a dissolving liquid tank is also installed above the frame, and several injection pipes are installed at the lower end of the dissolving liquid tank. The number of injection pipes is equal to the sum of the number of mixing containers and single containers. An electric control valve is provided in the middle of each injection pipe, and the several injection pipes are respectively connected to several single containers and the mixing container.

[0013] Preferably, in the initial state, the liquid level of the detection liquid in the liquid storage chamber is higher than the liquid receiving tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention automatically separates multiple different test liquids into multiple single containers, mixes the multiple test liquids into one equal amount of test liquid, and separates the mixed test liquid into a mixing container, thereby realizing the function of automatic liquid separation and improving the detection efficiency.

[0015] (2) The present invention drives the liquid receiving tube to make linear intermittent motion in the axial direction of the connecting tube by adjusting the driving rod. When the liquid receiving tube stops for the first time and the through hole is connected to the first liquid guiding tube, the detection liquid flows into the single container. When the liquid receiving tube stops for the second time and the through hole is connected to the second liquid guiding tube, the detection liquid flows into the mixing container. By adjusting the intermittent time of the liquid receiving tube, the volume of the detection liquid flowing into the single container and the mixing container is made the same, which can improve the accuracy, comparability and repeatability of drug residues and realize a standardized detection process, thereby ensuring accurate evaluation and reliable comparison of drug residue concentrations, thereby providing accurate data support for the management and control of aquaculture.

[0016] (3) By collecting the supernatant in the liquid storage chamber through the liquid receiving tube, the suspended matter, solid particles or other impurities in the test liquid can be separated, thereby improving the accuracy and reliability of the test; compared with the entire test liquid, the supernatant is purer and contains the signals of the target compound or important indicators. By only checking the supernatant, the complexity and time of the analysis can be reduced, the work efficiency can be improved, and it is also beneficial for the test liquid to react with the dissolving liquid, so that the reaction results, especially the degree of color change, can be observed more clearly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 A schematic diagram of the structure of the entire detection device proposed in an embodiment of the present invention; Figure 2 It is a structural schematic diagram of another viewing angle of the entire detection device proposed in the implementation of the present invention; Figure 3 It is a schematic diagram of the connection structure between the chain transmission component and the transverse slider in an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a chain transmission component in an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection structure between the transverse slider and the chain in an embodiment of the present invention; Figure 6 Schematic diagram of the connection structure between the piston rod and the liquid receiving pipe in an embodiment of the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the connecting pipe and the liquid receiving pipe in an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the second liquid guide tube in an embodiment of the present invention; Fig. 9 Schematic diagram of the connection structure between the dissolving liquid tank and the injection pipe in an embodiment of the present invention.

[0018] In the figure: 1, frame; 11, back plate; 12, bottom plate; 2, test liquid tank; 21, connecting pipe; 3, liquid storage chamber; 5, mounting frame; 6, mixing container; 7, single container; 8, first liquid guide tube; 9, second liquid guide tube; 91, branch pipe; 92, main pipe; 41. Dissolved liquid tank; 42. Injection pipe; 43. Electric control valve; 101, vertical guide rail; 102, vertical slider; 103, driving rod; 104, transverse guide rail; 105, transverse slider; 106, chain transmission component; 107, motor; 108, piston rod; 109, liquid receiving pipe; 1010, through hole; 1061. first sprocket; 1062. second sprocket; 1063. third sprocket; 1064. fourth sprocket; 1065. fifth sprocket; 1066. chain. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9 The present embodiment proposes an aquaculture drug residue detection device, comprising a frame 1, and also comprising a detection liquid tank 2 arranged above the frame 1, the inner cavity of the detection liquid tank 2 is evenly provided with three liquid storage chambers 3, and the lower end of each liquid storage chamber 3 is connected and installed with a connecting pipe 21, and a mixing container 6 and three single containers 7 are arranged in a mounting frame 5. In this embodiment, the single container 7 and the mixing container 6 are both arranged on the mounting frame 5, and the mounting frame 5 is installed inside the frame 1. The circumferential surface of each connecting pipe 21 is sequentially installed with a first liquid guide pipe 8 and a second liquid guide pipe 9 from top to bottom, and each connecting pipe 21 is respectively connected to the first liquid guide pipe 8 and the second liquid guide pipe 9. A liquid guide tube 8 is connected to a corresponding single container 7, and all the connecting tubes 21 are connected to the mixing container 6 through the second liquid guide tube 9. In this embodiment, the second liquid guide tube 9 includes a branch tube 91, and the number of the branch tubes 91 is the same as the number of the connecting tubes 21, and three branch tubes 91 are provided. One end of the branch tube 91 is connected to the connecting tube 21, and the other ends of the three branch tubes 91 are connected to a main tube 92. The other end of the main tube 92 is connected to the mixing container 6. Each connecting tube 21 is connected to the corresponding single container 7 through the first liquid guide tube 8, and all the connecting tubes 21 are connected to the mixing container 6 through the second liquid guide tube 9. The inner cavity of each connecting tube 21 is slidably connected to a liquid receiving tube 109, and a through hole 1010 communicated with the connecting tube 21 is formed on the circumferential surface of the liquid receiving tube 109. The liquid receiving tube 109 slides axially along the inner cavity of the connecting tube 21, so that the through hole 1010 is connected with the first liquid guide tube 8 and the second liquid guide tube 9 respectively, so that the detection liquid in the liquid storage chamber 3 is respectively injected into the single container 7 and the mixing container 6, and the capacity of the detection liquid in the single container 7 and the mixing container 6 is consistent.

[0021] Among them, the three liquid storage chambers 3 are respectively used to store different test liquids. It should be noted that different test liquids come from aquaculture water at different locations and at different times in the water area to be tested. Therefore, the mixed test liquid can more accurately reflect the overall situation of the entire batch of aquaculture products, reducing the limitations of the test liquid.

[0022] In this embodiment, the liquid receiving tube 109 is driven by the piston rod 108 to perform piston-like motion in the corresponding inner cavity of the connecting tube 21. Specifically, the lower end of the liquid receiving tube 109 is equipped with a piston rod 108 that drives it to perform piston-like motion in the corresponding inner cavity of the connecting tube 21. The piston rod 108 is composed of a horizontal section arranged along the horizontal direction and a vertical section arranged along the vertical direction. There are three vertical sections. The horizontal section is fixedly connected to several vertical sections, and the vertical section movably passes through the lower wall of the connecting tube 21; a driving rod 103 is commonly installed at one end of all the piston rods 108 away from the liquid receiving tube 109, and the other end of the driving rod 103 is connected to a vertical slider 102, and the driving rod 103 is driven to move synchronously by the vertical slider 102 performing linear motion in the vertical direction in the vertical guide rail 101.

[0023] On the basis of the above scheme, a horizontally arranged transverse guide rail 104 is installed at one end of the vertical slider 102 away from the vertical guide rail 101, that is, the transverse guide rail 104 and the vertical slider 102 can synchronously slide vertically in the vertical guide rail 101. In this embodiment, both ends of the transverse guide rail 104 are movably sleeved on guide columns arranged in the vertical direction, which improves the stability of the transverse guide rail 104 in the vertical direction. A transverse slider 105 is slidably connected in the transverse guide rail 104. A motor 107 and a chain transmission component 106 are installed in the frame 1 in parallel with the transverse guide rail 104. The output end of the motor 107 is in transmission connection with the chain transmission component 106, and the transverse slider 105 is in transmission connection with the chain transmission component 106. The chain transmission component 106 includes a first sprocket 1061, a second sprocket 1062, a third sprocket 1063, a fourth sprocket 1064 and a fifth sprocket 1065. The first sprocket 1061 is located above the second sprocket 1062, the second sprocket 1062 is located above the third sprocket 1063, the third sprocket 1063 is located above the fourth sprocket 1064, the fourth sprocket 1064 and the fifth sprocket 1065 are located on the same horizontal line, and a chain 1066 is commonly sleeved between the first sprocket 1061, the second sprocket 1062, the third sprocket 1063, the fourth sprocket 1064 and the fifth sprocket 1065; In the chain 1066 , the portion located at the second sprocket 1062 and the third sprocket 1063 is arranged in parallel with the transverse guide rail 104 , and the portion located at the fourth sprocket 1064 and the fifth sprocket 1065 is arranged in parallel with the transverse guide rail 104 .

[0024] like Figure 4 As shown, the chain transmission component 106 is driven to rotate by the motor 107, and the motor 107 is fixedly connected to a sprocket. In this embodiment, the motor shaft of the motor 107 is connected to the first sprocket 1061, and the first sprocket 1061 is driven to rotate by the motor 107, and the first sprocket 1061 drives the chain 1066 to rotate, and the chain transmission component 106 drives the horizontal slider 105 to move. During the entire movement process, in the horizontal direction, the chain transmission component 106 drives the horizontal slider 105 to move in the horizontal guide rail 104, and the height of the vertical slider 102 remains unchanged. In the vertical direction, the chain transmission component 106 drives the vertical slider 102 to move on the vertical guide rail 101.

[0025] like Figure 3 and Figure 4As shown, the specific working principle of the chain transmission component 106 is as follows: in the initial state, the vertical slider 102 is located at the highest point in the vertical guide rail 101, the transverse slider 105 is located at the outermost edge of the transverse guide rail 104, and the chain link movably connected to the transverse slider 105 is located at the first sprocket 1061. At this time, the liquid level of the detection liquid in the liquid storage chamber 3 is higher than the liquid receiving tube 109, and the detection liquid automatically flows into the liquid receiving tube 109, and then the first sprocket 1061 is driven to rotate by the motor 107, and the first sprocket 1061 drives the chain 1066 to rotate. When the chain link movably connected to the transverse slider 105 moves from the first sprocket 1061 to the second sprocket 1062, due to the height difference between the first sprocket 1061 and the second sprocket 1062 in the vertical direction, the transverse slider 105 moves in the transverse guide rail 104 at this time, and the transverse slider 105 will exert a downward force on the transverse guide rail 104, so that the transverse guide rail 104 and the vertical The slider 102 moves downward together in the vertical guide rail 101. At this time, the driving rod 103 drives the liquid receiving tube 109 to move downward through the piston rod 108, so that the through hole 1010 is connected to the first liquid guide tube 8, and the detection liquid flows into the single container 7 through the first liquid guide tube 8. When the chain link movably connected to the horizontal slider 105 moves from the second sprocket 1062 to the third sprocket 1063, as the chain 1066 continues to rotate, the horizontal slider 105 continues to move in the horizontal guide rail 104, but the vertical slider 102 stops moving, so that the through hole 1010 and the first liquid guide tube 8 remain in a conductive state. When the chain link movably connected to the horizontal slider 105 moves from the third sprocket 1063 to the fourth sprocket 1064, the horizontal guide rail 104 drives the vertical slider 102 to continue to move downward, so that the through hole 1010 is connected to the second liquid guide tube 9, the first liquid guide tube 8 is closed, and the detection liquid flows into the mixing container 6 through the second liquid guide tube 9.

[0026] In order to ensure that the volumes of the detection liquid in the single container 7 and the mixing container 6 are consistent, it is necessary to control the conduction time between the liquid receiving tube 109 and the first liquid guiding tube 8 and the second liquid guiding tube 9. In the present embodiment, this is achieved by adjusting the length of the chain 1066. Specifically, in the chain 1066, the length of the chain links located at the second sprocket 1062 and the third sprocket 1063 is recorded as L1, and the length of the chain links located at the fourth sprocket 1064 and the fifth sprocket 1065 is recorded as L2. Then, the ratio of L1 to L2 is N, where N is the number of liquid storage chambers 3. In the present embodiment, the value of N is 3.

[0027] Since the output speed of the motor 107 remains unchanged, the rotation speed of the chain 1066 remains unchanged. Therefore, the time when the through hole 1010 is connected to the first liquid guiding tube 8 is determined by the length L1 of the chain link between the second sprocket 1062 and the third sprocket 1063, and the time when the through hole 1010 is connected to the second liquid guiding tube 9 is determined by the length L2 of the chain link between the fourth sprocket 1064 and the fifth sprocket 1065. In this embodiment, L1=3×L2, that is, the time when the through hole 1010 is connected to the second liquid guiding tube 9 is T, and the time when the through hole 1010 is connected to the first liquid guiding tube 8 is 3T, ensuring that the detection liquid capacity in the single container 7 is equal to the detection liquid capacity in the mixing container 6.

[0028] It should be noted that the diameter of the first liquid guiding tube 8 is equal to the diameter of the second liquid guiding tube 9, and the diameter of the through hole 1010 is equal to the diameter of the first liquid guiding tube 8. In practical applications, in order to ensure that the through hole 1010 is completely connected with the first liquid guiding tube 8 or the second liquid guiding tube 9, the diameter of the through hole 1010 is slightly larger than the diameter of the first liquid guiding tube 8.

[0029] In this embodiment, the frame 1 includes a horizontally placed bottom plate 12 and a vertically placed back plate 11, the motor 107 is installed on the rear end surface of the back plate 11, the first sprocket 1061, the second sprocket 1062, the third sprocket 1063, the fourth sprocket 1064 and the fifth sprocket 1065 are all movably installed on the front end surface of the back plate 11, the output end of the motor 107 passes through the back plate 11 and is fixedly connected to the first sprocket 1061; the lower end of the vertical guide rail 101 is fixedly connected to the upper end of the bottom plate 12.

[0030] The method also includes a dissolving liquid tank 41, which is used to store the dissolving liquid. After the single container 7 and the mixing container 6 are filled with equal amounts of the detection liquid, equal amounts of the dissolving liquid are injected into all the single containers 7 and the mixing container 6 respectively, so that the dissolving liquid reacts with the detection liquid, and the change in liquid color is observed and compared with the colorimetric strip to obtain the drug residue concentration in the detection liquid.

[0031] The dissolving liquid tank 41 is installed on the frame 1, and the lower end of the dissolving liquid tank 41 is fixedly connected to the upper end of the frame 1. Four injection pipes 42 are installed at the lower end of the dissolving liquid tank 41, and an electric control valve 43 is arranged in the middle of the injection pipe 42. The four injection pipes 42 are respectively connected to several single containers 7 and the mixing container 6. When injecting the dissolving liquid, all the electric control valves 43 are opened synchronously, and the dissolving liquid flows into the single container 7 and the mixing container 6 through the pipeline. After a certain period of time, they are closed synchronously to ensure that the detection liquid in all containers reacts with the same amount of dissolving liquid to ensure the accuracy of the detection.

[0032] In the description of the present invention, the terms "first", "second", "another", and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Aquaculture drug residue detection equipment, comprising a frame (1), characterized in that: A mixing container (6) and a plurality of single containers (7) are arranged in an arrangement inside the frame (1); a detection liquid box (2) is arranged above the frame (1); the inner cavity of the detection liquid box (2) is evenly provided with liquid storage chambers (3) of the same number as the single containers (7); a connecting pipe (21) is arranged below each liquid storage chamber (3); a first liquid guide tube (8) and a second liquid guide tube (9) are sequentially installed on the circumferential surface of each connecting tube (21) from top to bottom; each connecting tube (21) is respectively connected to the corresponding single container (7) through the first liquid guide tube (8); and all the connecting tubes (21) are commonly connected to the mixing container (6) through the second liquid guide tube (9); The inner cavity of each connecting tube (21) is slidably connected to a liquid receiving tube (109), and a through hole (1010) communicating with the connecting tube (21) is formed on the circumferential surface of the liquid receiving tube (109). The liquid receiving tube (109) slides along the axial direction of the inner cavity of the connecting tube (21), so that the through hole (1010) is communicated with the first liquid guiding tube (8) and the second liquid guiding tube (9) respectively, so that the detection liquid in the liquid storage cavity (3) is respectively injected into the single container (7) and the mixing container (6), and the volume of the detection liquid in the single container (7) and the mixing container (6) is consistent.

2. The aquaculture drug residue detection equipment according to claim 1, characterized in that: The lower end of each liquid receiving pipe (109) is provided with a piston rod (108) which drives the liquid receiving pipe (109) to perform piston-like motion in the inner cavity of the corresponding connecting pipe (21).

3. The aquaculture drug residue detection equipment according to claim 2, characterized in that: A driving rod (103) is commonly mounted on one end of all piston rods (108) away from the liquid receiving tube (109), and the other end of the driving rod (103) is connected to a vertical slider (102). The vertical slider (102) moves linearly in a vertical direction in the vertical guide rail (101), thereby driving the driving rod (103) to move synchronously.

4. The aquaculture drug residue detection equipment according to claim 3, characterized in that: A horizontally arranged transverse guide rail (104) is installed at one end of the vertical slider (102) away from the vertical guide rail (101), and a transverse slider (105) is slidably connected inside the transverse guide rail (104); A motor (107) and a chain transmission component (106) arranged in parallel with the transverse guide rail (104) are installed in the frame (1); an output end of the motor (107) is in transmission connection with the chain transmission component (106); and a transverse slider (105) is in transmission connection with the chain transmission component (106); The chain transmission component (106) comprises a first sprocket (1061), a second sprocket (1062), a third sprocket (1063), a fourth sprocket (1064) and a fifth sprocket (1065); the first sprocket (1061) is located above the second sprocket (1062); the second sprocket (1062) is located above the third sprocket (1063); the third sprocket (1063) is located above the fourth sprocket (1064); the fourth sprocket (1064) and the fifth sprocket (1065) are located on the same horizontal line; and a chain (1066) is sleeved between the first sprocket (1061), the second sprocket (1062), the third sprocket (1063), the fourth sprocket (1064) and the fifth sprocket (1065); In the chain (1066), the portion located at the second sprocket (1062) and the third sprocket (1063) is arranged in parallel with the transverse guide rail (104), and the portion located at the fourth sprocket (1064) and the fifth sprocket (1065) is arranged in parallel with the transverse guide rail (104).

5. The aquaculture drug residue detection equipment according to claim 4, characterized in that: In the chain (1066), the length of the chain links located at the second sprocket (1062) and the third sprocket (1063) is recorded as L1, and the length of the chain links located at the fourth sprocket (1064) and the fifth sprocket (1065) is recorded as L2. The ratio of L1 to L2 is N, where N is the number of liquid storage chambers (3).

6. The aquaculture drug residue detection device according to any one of claims 1 to 5, characterized in that: A dissolving liquid tank (41) is also installed above the frame (1). A plurality of injection pipes (42) are installed at the lower end of the dissolving liquid tank (41). The number of the injection pipes (42) is equal to the sum of the number of the mixing container (6) and the single container (7). An electric control valve (43) is provided in the middle of each injection pipe (42). The plurality of injection pipes (42) are respectively connected to the plurality of single containers (7) and the mixing container (6).

7. The aquaculture drug residue detection equipment according to claim 1, characterized in that: In the initial state, the liquid level of the detection liquid in the liquid storage chamber (3) is higher than the liquid receiving tube (109).

Images