Pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces

Abstract

The utility model provides a traditional Chinese medicine decoction piece pesticide detection pretreatment device which comprises a case, a plurality of independent storage tanks are arranged at the upper end in the case side by side, outlets in the tops of the storage tanks penetrate out of the top surface of the case, drain pipes with control valves at the bottoms of the storage tanks are connected with a mixing chamber, a weighing assembly is arranged in the mixing chamber, and the mixing chamber is connected with a water inlet and outlet mechanism through the control valves. A liquid outlet in the bottom of the mixing chamber is communicated into a refrigerating chamber at the lower end in the case, the refrigerating chamber is connected with a refrigerating mechanism, the inner side wall of the refrigerating chamber is slidably connected with a plurality of refrigerating tanks, and inlets in the top faces of the refrigerating tanks can slide to be in butt joint with the liquid outlet; reagents such as a buffering agent, a substrate, an enzyme, a color developing agent and a cleaning agent can be stored in the independent storage tanks of the device respectively and put into the mixing chamber according to a certain proportion to be quantitatively mixed, the prepared various mixing agents can be injected into the corresponding refrigeration tanks respectively to be refrigerated for standby application, and after one mixing agent is prepared, the mixing chamber can be cleaned through the water inlet and outlet mechanism.

Description

Technical Field

[0001] This utility model relates to the field of pesticide testing equipment technology, specifically to a pretreatment device for pesticide testing of traditional Chinese medicine decoction pieces. Background Technology

[0002] Pesticides have a bioaccumulation effect in organisms, especially those that are difficult to decompose, which can persist in the human body for a long time and have a long-term impact on health. However, in standardized cultivation, the use of pesticides is indispensable to ensure the quality of Chinese medicinal materials. But the abuse or overuse of pesticides can lead to excessively high pesticide residues in medicinal materials, seriously affecting their quality. Therefore, pesticide residue detection is of paramount importance in the sampling and testing of Chinese medicinal products such as prepared slices of Chinese medicinal herbs. The main detection methods can be divided into two categories: chromatography and mass spectrometry. However, regardless of the method, different types and dosages of mixtures need to be prepared and added and compared at multiple stages of the detection process. These mixtures need to be prepared temporarily from multiple reagents in different proportions and need to be stored at low temperatures, which is very troublesome. Traditional manual preparation methods are time-consuming and labor-intensive, and it is difficult to guarantee accuracy, making them unsuitable for batch testing. A mixture pretreatment device is needed to solve the above problems. Utility Model Content

[0003] To address the aforementioned issues, this utility model proposes a pretreatment device for pesticide detection in traditional Chinese medicine decoction pieces. The device includes a chassis with several independent storage tanks arranged side-by-side at the upper part of the chassis. The top outlets of the storage tanks extend through the top surface of the chassis. A drain pipe with a control valve at the bottom of each storage tank connects to a mixing chamber. A weighing assembly is installed inside the mixing chamber. The mixing chamber is connected to an inlet / outlet mechanism via a control valve. The control valve wires are connected to a central control panel. The drain port at the bottom of the mixing chamber connects to a refrigeration chamber at the lower end of the chassis. The refrigeration chamber is connected to a refrigeration mechanism. Several refrigeration tanks are slidably connected to the inner side wall of the refrigeration chamber. The top inlets of the refrigeration tanks can slide to align with the drain ports.

[0004] Furthermore, the weighing assembly includes a weighing plate, the bottom surface of which is attached to a pressure-sensitive pad, which is placed on the bottom surface of the mixing chamber. The pressure-sensitive pad is connected to the central control screen by wires, and the drain column of the weighing plate is vertically slidably connected to the drain port.

[0005] Furthermore, the water inlet and outlet mechanism includes a water conveying cylinder. The tail end of the water conveying cylinder is connected to the bottom side of the mixing chamber via a control valve. A conveying motor is installed on the end face of the head end of the water conveying cylinder. The output end of the conveying motor is connected to a screw conveying shaft. The screw conveying shaft is rotatably connected to the inner wall of the water conveying cylinder. An inlet pipe with a control valve is connected to the upper side of the head end of the water conveying cylinder. The threaded joint of the inlet pipe passes through the casing and connects to the external water circuit. An outlet pipe with a control valve is connected to the lower side of the head end of the water conveying cylinder. The outlet pipe extends vertically downward into the cold storage chamber. A wastewater tank is provided below the outlet pipe. The wastewater tank is slidably connected to the outlet of the cold storage chamber.

[0006] Furthermore, the sliders on both sides of the refrigerated tank are slidably connected to the sliding grooves on the side wall of the refrigerated compartment, the rubber pad on the top surface of the refrigerated tank inlet is in contact with the top surface of the refrigerated compartment, the push block on the outside of the refrigerated tank is slidably connected to the transverse through groove on the outer side wall of the refrigerated compartment, and when the push block is pushed to the marked position, the refrigerated tank inlet is connected to the drain outlet, and the bottom of the refrigerated tank is provided with an outlet pipe with a drain valve.

[0007] Furthermore, the refrigeration mechanism includes an evaporator, which is installed in the lower compartment of the refrigeration chamber on the back side of the chassis. The lower compartment is connected to the refrigerator compartment through several cold air ducts. The evaporator output pipe is connected to the condenser in the upper compartment through a compressor. The heat dissipation duct of the upper compartment leads to the outside of the chassis. The condenser output pipe is connected to a liquid storage tank. The liquid storage tank is connected to the condenser input pipe through an expansion valve.

[0008] Furthermore, a stirring assembly is provided in the mixing chamber, which includes a stirring motor. The stirring motor is installed on the outer side wall of the mixing chamber, and the output end of the stirring motor is connected to the stirring rod in the mixing chamber.

[0009] The beneficial effects of this utility model are as follows: The independent storage tank in this utility model can store buffers, substrates, enzymes, color developers and cleaning agents respectively. Under the control of the built-in program on the central control screen, they are quantitatively mixed in a certain proportion in the mixing chamber. The various mixtures can be injected into the corresponding refrigerated tanks for refrigeration and later use. After the preparation of a mixture, the mixing chamber can be cleaned by the inlet and outlet drainage mechanism in conjunction with the cleaning agent, ensuring that the mixtures are not affected. It has the characteristics of high efficiency, speed and easy operation, and can save a lot of labor costs. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of the present utility model;

[0011] Figure 2 This is a rear view sectional view of the present invention;

[0012] Figure 3 This is a front view of the structural cross-section of this utility model;

[0013] Figure 4 for Figure 2 A magnified view of a portion of region A in the middle.

[0014] The following are explanations of the reference numerals in the attached diagram: 1. Chassis; 101. Refrigeration compartment; 102. Slide groove; 103. Horizontal through groove; 104. Refrigeration compartment; 105. Cold air duct; 2. Storage tank; 3. Mixing chamber; 301. Drain outlet; 4. Central control screen; 5. Refrigeration tank; 501. Sliding block; 502. Push block; 6. Weighing plate; 601. Drain column; 7. Pressure pad; 8. Water delivery cylinder; 9. Conveyor motor; 10. Screw conveyor shaft; 11. Water inlet pipe; 12. Water outlet pipe; 13. Wastewater tank; 14. Evaporator; 15. Compressor; 16. Condenser; 17. Storage tank; 18. Expansion valve; 19. Stirring motor; 20. Stirring roller. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figures 1 to 4 As shown, a pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces includes a chassis 1. Several independent storage tanks 2 are arranged side-by-side at the upper part of the chassis 1. The top outlets of the storage tanks 2 extend through the top surface of the chassis 1. A drain pipe with a control valve at the bottom of each storage tank 2 connects to a mixing chamber 3. The mixing chamber 3 contains a stirring assembly, which includes a stirring motor 19 mounted on the outer wall of the mixing chamber 3. The output end of the stirring motor 19 is connected to a stirring rod 20 inside the mixing chamber 3. A weighing assembly is also provided inside the mixing chamber 3. The weighing assembly includes a weighing plate 6, the bottom surface of which is in contact with a pressure-sensitive pad 7. The pressure-sensitive pad 7 is placed on the bottom surface of the mixing chamber 3. The pressure-sensitive pad 7 is wired to a central control screen 4. The drain column 601 of the weighing plate 6 is vertically slidably connected to the drain outlet 301 at the bottom of the mixing chamber 3.

[0019] In this embodiment, the drain port 301 is connected to the lower end of the refrigerator compartment 101 inside the chassis 1. The refrigerator compartment 101 is connected to the refrigeration mechanism, which includes an evaporator 14. The evaporator 14 is installed in the lower compartment of the refrigeration compartment 104 on the back side of the chassis 1. The lower compartment is connected to the refrigerator compartment 101 through several cold air ducts 105. The output pipe of the evaporator 14 is connected to the condenser 16 in the upper compartment through the compressor 15. The heat dissipation duct of the upper compartment leads to the outside of the chassis 1. The output pipe of the condenser 16 is connected to the liquid storage tank 17. The liquid storage tank 17 is connected to the input pipe of the condenser 16 through the expansion valve 18. The refrigerator compartment 101 contains several refrigerator tanks 5. The sliders 501 on both sides of the refrigerator tank 5 are slidably connected to the sliding grooves 102 on the side wall of the refrigerator compartment 101. The rubber pad on the top surface of the inlet of the refrigerator tank 5 is in contact with the top surface of the refrigerator compartment 101. The push block 502 on the outside of the refrigerator tank 5 is slidably connected to the transverse through groove 103 on the outer wall of the refrigerator compartment 101. When the push block 502 is pushed to the marked position, the inlet of the refrigerator tank 5 is connected to the drain port 301. The bottom of the refrigerator tank 5 is provided with an outlet pipe 503 with a drain valve. The outlet pipe 503 is located above the outlet of the refrigerator compartment 101.

[0020] In this embodiment, the bottom side of the mixing chamber 3 is connected to the water inlet and outlet cylinder 8 of the water inlet and outlet mechanism via a control valve. A conveyor motor 9 is installed on the end face of the water inlet cylinder 8. The output end of the conveyor motor 9 is connected to the screw conveyor shaft 10. The screw conveyor shaft 10 is rotatably connected to the inner wall of the water inlet cylinder 8. The upper side of the upper end of the water inlet cylinder 8 is connected to the water inlet pipe 11 with a control valve. The threaded joint of the water inlet pipe 11 passes through the casing 1 and connects to the external water circuit. The lower side of the upper end of the water inlet cylinder 8 is connected to the water outlet pipe 12 with a control valve. The water outlet pipe 12 extends vertically downward into the cold storage chamber 101. A sewage tank 13 is provided below the water outlet pipe 12. The sewage tank 13 is slidably connected to the outlet of the cold storage chamber 101. The wires of the above control valves are connected to the central control screen 4. The central control screen 4 is installed on the outside of the casing 1.

[0021] The working principle of this utility model is as follows:

[0022] like Figure 3As shown, buffer, substrate, enzyme, chromogenic agent, and cleaning agent are injected into storage tank 2 from left to right. The central control screen 4 can detect the remaining liquid level in the tank via a built-in liquid level sensor. When a mixture needs to be prepared (taking an enzyme-buffer mixture as an example), the operator inputs the amount to be prepared onto the central control screen 4. The central control screen 4 opens the control valve of buffer storage tank 2 according to a preset program, injecting an appropriate amount of buffer into mixing chamber 3 according to the preparation ratio. The weighing component displays the injected amount on the central control screen 4 in real time. After the buffer is injected, the enzyme is injected in the same way, and then the stirring motor 19 is turned on to mix. After mixing, the operator pushes the pusher block 502 of the corresponding refrigerator tank 5 to the marked position according to the prompts, so that the inlet of the refrigerator tank 5 is connected with the drain port 301, and the mixed liquid flows into the refrigerator tank 5. After all the liquid is injected, the operator pushes the next refrigerator tank 5 to make its rubber gasket seal the drain port 301 and waits for it to be ready. The operator injects cleaning agent into the mixing chamber 3, turns on the water inlet pipe 11 and the conveyor motor 9 to inject clean water into the mixing chamber 3, turns on the stirring motor 19 again to clean the inside of the mixing chamber 3, and then turns on the water outlet pipe 12 and reverses the conveyor motor 9 to discharge the wastewater from the mixing chamber 3 into the wastewater tank 13 for collection.

[0023] The temperature of the cold storage compartment 101 is controlled by a refrigeration mechanism. Cold air generated by the evaporator 14 enters the cold storage compartment 101 through the cold air duct 105 for cooling. Hot air generated by the condenser 16 is discharged from the upper compartment of the casing 1. When the mixture in the cold storage tank 5 needs to be retrieved, the wastewater tank 13 is pulled out, the test tube is placed below the outlet pipe 503, and the drain valve is opened to retrieve the cold storage mixture. This invention can prepare various mixtures for use in cold storage tanks. The preparation process is program-controlled, reducing the probability of errors. It also has a self-cleaning function, ensuring that the mixtures are not affected by each other. It is highly efficient, quick, and easy to operate, saving significant labor costs.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces, comprising a chassis (1), characterized in that: The upper part of the casing (1) is provided with several independent storage tanks (2) arranged side by side. The top outlet of the storage tank (2) extends out of the top surface of the casing (1). The drain pipe with control valve at the bottom of the storage tank (2) is connected to the mixing chamber (3). The mixing chamber (3) is equipped with a weighing component. The mixing chamber (3) is connected to the inlet and outlet mechanism through the control valve. The wires of each control valve are connected to the central control screen (4). The drain port (301) at the bottom of the mixing chamber (3) is connected to the lower end of the cold storage chamber (101) inside the casing (1). The cold storage chamber (101) is connected to the refrigeration mechanism. Several cold storage tanks (5) are slidably connected to the inner side wall of the cold storage chamber (101). The top inlet of the cold storage tank (5) can slide to dock with the drain port (301).

2. The pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The weighing assembly includes a weighing plate (6), the bottom surface of the weighing plate (6) is attached to the pressure pad (7), the pressure pad (7) is placed on the bottom surface of the mixing chamber (3), the pressure pad (7) is wired to the central control screen (4), and the drain column (601) of the weighing plate (6) is vertically slidably connected to the drain port (301).

3. The pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The water inlet and outlet mechanism includes a water delivery cylinder (8), the tail end of which is connected to the bottom of the mixing chamber (3) via a control valve, a conveying motor (9) is installed on the end face of the water delivery cylinder (8), the output end of the conveying motor (9) is connected to a spiral conveying shaft (10), the spiral conveying shaft (10) is rotatably connected to the inner wall of the water delivery cylinder (8), the upper side of the head end of the water delivery cylinder (8) is connected to an inlet pipe (11) with a control valve, the threaded joint of the inlet pipe (11) passes through the machine box (1) and connects to the external water circuit, the lower side of the head end of the water delivery cylinder (8) is connected to an outlet pipe (12) with a control valve, the outlet pipe (12) is vertically inserted into the cold storage chamber (101), a sewage tank (13) is provided below the outlet pipe (12), and the sewage tank (13) is slidably connected to the outlet of the cold storage chamber (101).

4. The pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The sliders (501) on both sides of the refrigerated tank (5) are slidably connected to the sliding grooves (102) on the side wall of the refrigerated chamber (101). The rubber pad on the top surface of the inlet of the refrigerated tank (5) is in contact with the top surface of the refrigerated chamber (101). The push block (502) on the outside of the refrigerated tank (5) is slidably connected to the transverse through groove (103) on the outer wall of the refrigerated chamber (101). When the push block (502) is pushed to the mark, the inlet of the refrigerated tank (5) is connected to the drain port (301). The bottom of the refrigerated tank (5) is provided with an outlet pipe (503) with a drain valve.

5. The pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The refrigeration mechanism includes an evaporator (14), which is installed in the lower compartment of the refrigeration chamber (104) on the back side of the chassis (1). The lower compartment is connected to the refrigerator compartment (101) through several cold air ducts (105). The output pipe of the evaporator (14) is connected to the condenser (16) in the upper compartment through the compressor (15). The heat dissipation duct of the upper compartment leads to the outside of the chassis (1). The output pipe of the condenser (16) is connected to the liquid storage tank (17). The liquid storage tank (17) is connected to the input pipe of the condenser (16) through the expansion valve (18).

6. The pretreatment device for pesticide detection of traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The mixing chamber (3) is equipped with a stirring assembly, which includes a stirring motor (19). The stirring motor (19) is installed on the outer wall of the mixing chamber (3), and the output end of the stirring motor (19) is connected to the stirring rod (20) inside the mixing chamber (3).

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