Pipetting equipment for detecting pesticide residues
By introducing an electric slide rail and support frame into the pipetting device, combined with a pipetting mechanism and dispensing mechanism controlled by a solenoid valve, the problems of large errors and cumbersome operation of traditional pipetting devices are solved, and efficient and accurate pipetting for pesticide residue detection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional pipetting equipment suffers from large manual pipetting errors, cumbersome operation, and difficulty in meeting the needs of detecting trace pesticide residues, and is prone to introducing human error.
It adopts electric slide rails and support frames, combined with liquid transfer and dispensing mechanisms, and uses solenoid valves to control flow rate and velocity. It achieves automated liquid transfer through horizontal tubes, vertical tubes, branch tubes and mixing tubes. With the help of pistons and limit plates to fix the container, it can achieve precise liquid injection and cleaning.
It improves the accuracy and efficiency of pipetting, simplifies the operation process, reduces human error, and ensures the accuracy of test results.
Smart Images
Figure CN224025063U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laboratory instrument technical field especially relates to a kind of liquid transfer equipment for detecting pesticide residue. BACKGROUND
[0002] Laboratory instrument technical field is a broad and deep field, covering various types of instruments and equipment, which play an important role in scientific research, teaching, production and other fields. Liquid transfer in laboratory testing is a precise and critical operation, which directly affects the accuracy and reliability of experimental results.
[0003] However, the traditional liquid transfer equipment has the problems of large manual liquid transfer error, difficulty in meeting the detection needs of trace pesticide residue, complicated operation and easy introduction of human error in pesticide residue detection.
[0004] For example, the traditional pipette has complicated operation steps and cannot perform liquid transfer through a simple and intuitive method, and there are problems of inaccurate reading and liquid residue, which affect the efficiency and effect of liquid transfer. UTILITY MODEL CONTENT
[0005] The utility model discloses a kind of liquid transfer equipment for detecting pesticide residue, to solve the technical problems that the traditional liquid transfer equipment has large manual liquid transfer error, difficulty in meeting the detection needs of trace pesticide residue, complicated operation and easy introduction of human error.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A kind of liquid transfer equipment for detecting pesticide residue, including workbench, electric slide rail and support frame, further comprising: liquid transfer mechanism: the liquid transfer mechanism includes the transverse pipe being arranged on the support frame, the electromagnetic valve is arranged on the transverse pipe, one end of the transverse pipe is provided with vertical pipe, the other end of the transverse pipe is provided with branch pipe, the end of the vertical pipe away from the transverse pipe is provided with liquid inlet barrel, the outer wall of one side of the liquid inlet barrel is provided with liquid adding hopper, the outer wall of one side of the liquid inlet barrel is connected with electric telescopic rod, the movable end of the electric telescopic rod is provided with piston, the electric telescopic rod is used in cooperation with the piston;Liquid distribution mechanism: the liquid distribution mechanism is arranged on the electric slide rail.
[0008] In the scheme, the liquid transfer mechanism can accurately and efficiently transfer the liquid to be tested in the liquid inlet barrel into the target container through the electromagnetic valve. In specific use, only need to add the liquid to be tested into the liquid inlet barrel through the liquid adding hopper, and then input the demand through the computer to control the flow and flow rate through the electromagnetic valve. The liquid to be tested can pass through the vertical pipe, transverse pipe and branch pipe, and then pass through the mixing pipe and liquid distribution pipe to enter the target container, to accurately and efficiently transfer the liquid. At the same time, the piston can not only assist to completely remove the liquid to be tested in the equipment, but also assist to clean the equipment with water.
[0009] In a preferred scheme, the liquid distribution mechanism includes a moving basket arranged on the electric slide rail, a limiting plate is arranged on the inner wall of the bottom of the moving basket, and an inductor is arranged on the bottom of the moving basket.
[0010] In specific use, when the target container is placed in the moving basket, the limiting plate on the bottom of the moving basket can assist in firmly fixing the container, the inductor responds to the computer-controlled electromagnetic valve, after a certain amount of liquid to be tested is collected in each target container, the electric slide rail drives the moving basket to translate with the target container, and then continues to inject liquid into the next target container, without manual resetting, so that the liquid to be tested can be accurately injected into multiple target containers.
[0011] In a preferred scheme, helical blades are arranged on the inner wall of the section of the vertical pipe close to the horizontal pipe, a one-way air inlet valve is arranged on the side of the liquid inlet barrel close to the liquid inlet bucket, and a one-way valve is arranged on the end of the vertical pipe close to the liquid inlet barrel.
[0012] In specific use, the helical blades can provide a certain rotating power when the liquid flows, so that the residual liquid to be tested in the pipe is avoided, and the accuracy of the detection result is effectively improved, the one-way air inlet valve can timely admit air when the piston moves upward, and the one-way valve can avoid liquid backflow when the piston moves upward.
[0013] As can be seen from the above, the liquid transfer equipment for detecting pesticide residues comprises a workbench, an electric slide rail and a support frame, and further comprises: a liquid transfer mechanism, the liquid transfer mechanism comprises a horizontal pipe arranged on the support frame, an electromagnetic valve is arranged on the horizontal pipe, a vertical pipe is arranged at one end of the horizontal pipe, a branch pipe is arranged at the other end of the horizontal pipe, a liquid inlet barrel is arranged at the end of the vertical pipe away from the horizontal pipe, a liquid inlet bucket is arranged on the outer wall of one side of the liquid inlet barrel, an electric telescopic rod is connected to the outer wall of one side of the liquid inlet barrel, a piston is arranged at the movable end of the electric telescopic rod, and the electric telescopic rod and the piston are used in cooperation; and a liquid distribution mechanism, the liquid distribution mechanism is arranged on the electric slide rail. The liquid transfer equipment for detecting pesticide residues provided by the utility model has the technical effects of improving liquid transfer accuracy and efficiency and being easy to operate. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The utility model provides a kind of overall structure schematic diagram of liquid transfer equipment for detecting pesticide residues.
[0015] Figure 2 The utility model provides a kind of front view structure schematic diagram of liquid transfer equipment for detecting pesticide residues.
[0016] Figure 3 The utility model provides a kind of liquid inlet barrel cross section structure schematic diagram of liquid transfer equipment for detecting pesticide residues.
[0017] Figure 4 The utility model provides a kind of detection pesticide residue's pipette equipment's mixing pipe profile structure schematic diagram.
[0018] In the drawing: 1, workbench;2, electric slide rail;3, mobile basket;4, electromagnetic valve;5, support frame;6, liquid inlet barrel;7, electric telescopic rod;8, liquid adding hopper;9, check valve;10, control valve;11, mixing pipe;12, one-way air inlet valve;13, piston;14, helical blade;15, limit plate;16, impeller;17, liquid distribution pipe. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0021] The pipette equipment for detecting pesticide residues disclosed by the utility model is mainly applied to the scene where the traditional pipette equipment has large manual pipetting error and complicated operation.
[0022] Reference Figure 1 And Figure 2 A pipette equipment for detecting pesticide residues, comprising a workbench 1, an electric slide rail 2 and a support frame 5, further comprising: a pipetting mechanism, the pipetting mechanism comprising a cross pipe arranged on the support frame 5, the cross pipe being provided with an electromagnetic valve 4, one end of the cross pipe being provided with a vertical pipe, the other end of the cross pipe being provided with a branch pipe, the vertical pipe being provided with a liquid inlet barrel 6 at an end away from the cross pipe, the liquid inlet barrel 6 being provided with a liquid adding hopper 8 on one side of the outer wall, the liquid inlet barrel 6 being connected with an electric telescopic rod 7 on one side of the outer wall, the electric telescopic rod 7 being provided with a piston 13 at the movable end, and the electric telescopic rod 7 being used in cooperation with the piston 13;a liquid distribution mechanism, the liquid distribution mechanism being arranged on the electric slide rail 2,
[0023] In the specific use process, only the to-be-tested liquid is added into the liquid bucket 6 through the liquid adding hopper 8, then the demand is input on the computer side to control the flow and flow rate through the electromagnetic valve 4, and the to-be-tested liquid can pass through the vertical pipe, the horizontal pipe and the branch pipe, and then pass through the mixing pipe 11 and the liquid distribution pipe 17 to enter the target container, so that the liquid transfer is accurately and efficiently performed. Meanwhile, the piston 13 can not only assist in completely removing the to-be-tested liquid in the device, but also assist in cleaning the device with water.
[0024] The control valve 10 is arranged at the connection position of the horizontal pipe and the branch pipe, and the control valve 10 can control the opening and closing of the branch pipe, so that the liquid can be discharged on one side or on both sides at the same time.
[0025] Referring to Figure 1 and Figure 3 In a preferred embodiment, the inner wall of the vertical pipe near the horizontal pipe is provided with a spiral blade 14, and the spiral blade 14 can provide a certain rotating power when the liquid flows, so as to avoid the residue of the to-be-tested liquid in the pipe and effectively improve the accuracy of the detection result.
[0026] The one-way air inlet valve 12 is arranged on the side of the liquid adding hopper 8 close to the liquid inlet bucket 6, and the one-way valve 9 is arranged at the end of the vertical pipe close to the liquid inlet bucket 6. The one-way air inlet valve 12 can timely supply air when the piston 13 moves upward, and the one-way valve 9 can prevent the backflow of liquid when the piston 13 moves upward.
[0027] Referring to Figure 1 and Figure 4 In a preferred embodiment, the liquid distribution mechanism includes a moving basket 3 arranged on the electric sliding rail 2, and a limiting plate 15 is arranged on the bottom inner wall of the moving basket 3. The moving basket 3 is provided with a sensor.
[0028] Specifically, when the target container is placed in the moving basket 3, the limiting plate 15 on the bottom of the moving basket 3 can assist in firmly fixing the container, and the sensor responds to the electromagnetic valve 4 controlled by the computer. After each target container collects a certain amount of to-be-tested liquid, the electric sliding rail 2 drives the moving basket 3 and the target container to translate, and then continues to inject liquid into the next target container, without the need for manual resetting, so as to accurately inject the to-be-tested liquid into multiple target containers.
[0029] The mixing pipe 11 is connected to the end of the branch pipe away from the control valve 10, the mixing pipe 11 is internally provided with an impeller 16, and the mixing pipe 11 is provided with a liquid distribution pipe 17 at the bottom.
[0030] Specifically, the to-be-tested liquid entering the mixing pipe 11 is automatically mixed by the impeller 16 in the mixing pipe 11, and the mixed to-be-tested liquid enters the target container through the liquid distribution pipe 17.
[0031] Working principle: in the specific use, only need to add the liquid through the liquid bucket 8 into the liquid bucket 6, then the computer connected to set the required parameters, solenoid valve 4 can respond to control the flow of the liquid to be measured, the target container is placed in the moving basket 3, through the limiting plate 15 of the moving basket 3 bottom auxiliary fixed container, inductor response computer controlled solenoid valve 4, each target container collects a certain liquid to be measured, the electric slide rail 2 drives the moving basket 3 and target container translation, then continue to the next target container injection.
[0032] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. The replacement can be the replacement of part of the structure, device, method step, or the complete technical solution. According to the technical scheme of the present application and the utility model concept, equivalent replacement or change should be covered in the protection scope of the present application.
Claims
1. A pipette device for detecting pesticide residues, comprising a workbench (1), an electric sliding rail (2) and a supporting frame (5), characterized in that, Also include: Pipetting mechanism: the pipetting mechanism includes a cross pipe provided on the support frame (5), the cross pipe is provided with a solenoid valve (4), one end of the cross pipe is provided with a vertical pipe, the other end of the cross pipe is provided with a branch pipe, the end of the vertical pipe away from the cross pipe is provided with a liquid inlet barrel (6), one side of the outer wall of the liquid inlet barrel (6) is provided with a liquid adding hopper (8), one side of the outer wall of the liquid inlet barrel (6) is connected with an electric telescopic rod (7), the movable end of the electric telescopic rod (7) is provided with a piston (13), the electric telescopic rod (7) is used in cooperation with the piston (13); Liquid distribution mechanism: the liquid distribution mechanism is arranged on the electric sliding rail (2).
2. The pipette device for detecting pesticide residues according to claim 1, wherein The liquid distribution mechanism includes a moving basket (3) arranged on the electric sliding rail (2), and a limiting plate (15) is arranged on the inner wall of the bottom of the moving basket (3).
3. The pipette device for detecting pesticide residues according to claim 1, wherein The liquid adding hopper (8) is provided with a one-way air inlet valve (12) on the side close to the liquid inlet barrel (6), and the vertical pipe is provided with a one-way valve (9) on the end close to the liquid inlet barrel (6).
4. The pipette device for detecting pesticide residues according to claim 1, wherein The cross pipe is provided with a control valve (10) at the connection with the branch pipe.
5. The pipette device for detecting pesticide residues according to claim 4, wherein The end of the branch pipe away from the control valve (10) is connected with a mixing pipe (11), the mixing pipe (11) is provided with an impeller (16) inside, and the bottom of the mixing pipe (11) is provided with a liquid distribution pipe (17).
6. The pipette device for detecting pesticide residues according to claim 3, wherein The inner wall of the vertical pipe close to the cross pipe is provided with a spiral blade (14).
7. The pipette device for detecting pesticide residues according to claim 2, wherein The bottom of the moving basket (3) is provided with an inductor.