A cross contamination prevention sampling device

Abstract

The utility model provides a kind of sampling device of preventing cross-contamination. The sampling device of preventing cross-contamination includes: sampling box;Setting in the stock solution cup of the sampling box;Fixedly installed on the test tube rack of the bottom inner wall of the sampling box;Test tube body is set on the test tube rack;Liquid sampling mechanism for sampling is located in the inner wall of sampling box;Displacement mechanism for controlling the horizontal and up-down movement of liquid sampling mechanism is set on the top inner wall of the sampling box;Switching mechanism is installed in the displacement mechanism for switching liquid sampling mechanism.The utility model provides the sampling device of preventing cross-contamination with the switching function of pipette, multiple pipetting will not cross-contamination, and the advantage that pipetting efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of test sampling technology, and in particular to a sampling device that prevents cross-contamination. Background Technology

[0002] Liquid sampling is an indispensable and crucial step in many fields such as chemical analysis, environmental monitoring, and industrial production quality control. Its accuracy directly affects experimental results or production quality.

[0003] However, existing sampling devices often lack the function of switching pipettes, so the pipette needs to be cleaned or replaced after each sampling, resulting in low pipetting efficiency.

[0004] Therefore, it is necessary to provide a sampling device that prevents cross-contamination to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problems of existing anti-cross-contamination sampling devices, which often lack the function of switching pipettes and have low pipetting efficiency, this utility model provides an anti-cross-contamination sampling device.

[0006] The cross-contamination prevention sampling device provided by this utility model includes: a sampling box; a raw liquid cup disposed inside the sampling box; a test tube rack fixedly installed on the inner wall of the bottom of the sampling box; a test tube body disposed on the test tube rack; a liquid sampling mechanism located on the inner wall of the sampling box for sampling; a displacement mechanism disposed on the inner wall of the top of the sampling box for controlling the horizontal and vertical movement of the liquid sampling mechanism; and a switching mechanism installed on the displacement mechanism for switching the liquid sampling mechanism.

[0007] Preferably, a support pad is fixedly installed on the bottom inner wall of the sampling box, and the support pad has an arc-shaped groove.

[0008] Preferably, the displacement mechanism includes: a longitudinal electric slide rail fixedly installed on the inner wall of the top of the sampling box; a transverse electric slide rail fixedly installed on the output block of the longitudinal electric slide rail; and an electric cylinder fixedly installed on the transverse electric slide rail.

[0009] Preferably, a limiting rod is fixedly installed on the inner wall of the sampling box, and a slider is slidably sleeved on the limiting rod, the slider being fixedly connected to the transverse electric slide rail.

[0010] Preferably, the switching mechanism includes: a mounting plate fixedly mounted on the output rod of the electric cylinder; a vertical shaft rotatably mounted on the bottom of the mounting plate and having a turntable; a servo motor fixedly mounted on the bottom of the mounting plate; and gears fixedly mounted on the output shaft of the servo motor and on the vertical shaft and meshing with each other.

[0011] Preferably, the liquid sampling mechanism includes: a mounting base fixedly mounted on the turntable; a pipette mounted on the bottom of the mounting base; a plate with a pin hole fixedly mounted on the top of the pipette; a slot formed at the bottom of the mounting base; a mounting groove formed on the inner wall of the slot; a pin slidably mounted on the inner wall of the mounting groove and adapted to the pin hole; a sleeve fixedly sleeved on the pin; a spring slidably sleeved on the pin; and a pull ring fixedly mounted on one end of the pin.

[0012] Preferably, the sampling box is hinged with a door, the door is provided with an observation window, the door is fixedly installed with a handle, and the door is provided with a controller.

[0013] Compared with related technologies, the cross-contamination prevention sampling device provided by this utility model has the following beneficial effects:

[0014] This invention provides a sampling device to prevent cross-contamination. A stock solution cup can hold the stock solution to be sampled, a test tube rack can hold the test tubes, a liquid sampling mechanism can sample and transfer the liquid, a displacement mechanism can move the liquid sampling mechanism horizontally and vertically, and a switching mechanism can rotate and switch the liquid sampling mechanism to avoid cross-contamination between multiple sampling and transfer operations. A support pad with multiple arc-shaped grooves can buffer and support the test tubes. A longitudinal and transverse electric slide rail can move the liquid sampling mechanism horizontally, and an electric cylinder can move the liquid sampling mechanism vertically. A pipette can sample the stock solution in the stock solution cup and transfer it into the test tube. A slider slides up and down on a limiting rod to... The device uses a horizontal electric slide rail for guidance and limiting. A servo motor and gears drive a vertical shaft to rotate, which in turn drives a turntable to rotate, allowing for the switching of multiple liquid sampling mechanisms. This avoids cross-contamination between multiple sampling and pipetting operations. Pulling a pull ring moves a pin rod laterally, separating it from the pin hole. The pipette can then be removed by pulling the insert plate out of the slot. The insert plate of the replacement pipette is inserted into the slot, and a spring-loaded return plate causes the pin rod to insert into the pin hole, locking the insert plate in the slot. This completes the disassembly and replacement of the pipette, facilitating centralized cleaning by staff. The sampling box can be sealed through a door, the sampling process can be observed through an observation window, and the device can be operated and controlled through a controller. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the cross-contamination prevention sampling device provided by this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front view of the structure;

[0017] Figure 3 for Figure 1 An enlarged schematic diagram of part A shown in the image;

[0018] Figure 4 for Figure 1 The enlarged schematic diagram of part B shown in the figure.

[0019] Numbered in the diagram: 1. Sampling box; 2. Stock solution cup; 3. Test tube rack; 4. Test tube body; 5. Support pad; 6. Arc groove; 7. Longitudinal electric slide rail; 8. Transverse electric slide rail; 9. Electric cylinder; 10. Limit rod; 11. Slider; 121. Mounting plate; 122. Vertical shaft; 123. Turntable; 124. Servo motor; 125. Gear; 13. Mounting base; 14. Pipette; 15. Insert plate; 16. Pin hole; 17. Slot; 18. Mounting groove; 19. Pin rod; 20. Sleeve plate; 21. Spring; 22. Pull ring; 23. Box door; 24. Observation window; 25. Handle; 26. Controller. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1-4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the cross-contamination prevention sampling device provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the front view of the structure; Figure 3 for Figure 1 An enlarged schematic diagram of part A shown in the image; Figure 4 for Figure 1 The enlarged schematic diagram of part B shown in the figure illustrates the cross-contamination prevention sampling device, which includes: a sampling box 1; a stock solution cup 2 disposed within the sampling box 1; a test tube rack 3 fixedly installed on the inner wall of the bottom of the sampling box 1; test tube bodies 4 disposed on the test tube rack 3; a liquid sampling mechanism located on the inner wall of the sampling box 1 for sampling; a displacement mechanism disposed on the inner wall of the top of the sampling box 1 for controlling the horizontal and vertical movement of the liquid sampling mechanism; and a switching mechanism installed on the displacement mechanism for switching the liquid sampling mechanism. The stock solution cup 2 can hold the stock solution to be sampled, the test tube body 4 can be placed on the test tube rack 3, the liquid sampling mechanism can sample and transfer the liquid, the displacement mechanism can drive the liquid sampling mechanism to move horizontally and vertically, and the switching mechanism can rotate and switch the liquid sampling mechanism to avoid cross-contamination between multiple sampling and transfer operations.

[0022] A support pad 5 is fixedly installed on the bottom inner wall of the sampling box 1. The support pad 5 has an arc-shaped groove 6. The support pad 5 with multiple arc-shaped grooves 6 can provide buffer support for the test tube body 4.

[0023] The displacement mechanism includes: a longitudinal electric slide rail 7 fixedly installed on the inner wall of the top of the sampling box 1; a transverse electric slide rail 8 fixedly installed on the output block of the longitudinal electric slide rail 7; and an electric cylinder 9 fixedly installed on the transverse electric slide rail 8. The longitudinal electric slide rail 7 and the transverse electric slide rail 8 can drive the liquid sampling mechanism to move horizontally, and the electric cylinder 9 can drive the liquid sampling mechanism to move up and down. The pipette 14 can sample the original liquid in the original liquid cup 2 and transfer it to the test tube body 4.

[0024] A limiting rod 10 is fixedly installed on the inner wall of the sampling box 1. A slider 11 is slidably sleeved on the limiting rod 10. The slider 11 is fixedly connected to the transverse electric slide rail 8. The transverse electric slide rail 8 can be guided and limited by the slider 11 sliding up and down on the limiting rod 10.

[0025] The switching mechanism includes: a mounting plate 121 fixedly mounted on the output rod of the electric cylinder 9; a vertical shaft 122 rotatably mounted on the bottom of the mounting plate 121 and equipped with a turntable 123; a servo motor 124 fixedly mounted on the bottom of the mounting plate 121, the servo motor 124 being an MG90S model; and a gear 125 fixedly mounted on the output shaft of the servo motor 124 and meshing with the vertical shaft 122. The servo motor 124 and the gear 125 drive the vertical shaft 122 to rotate, and the vertical shaft 122 drives the turntable 123 to rotate, thereby rotating and switching between multiple liquid sampling mechanisms to avoid cross-contamination between multiple sampling and liquid transfer operations.

[0026] The liquid sampling mechanism includes: a mounting base 13 fixedly mounted on the turntable 123; a pipette 14 mounted on the bottom of the mounting base 13; an insert plate 15 fixedly mounted on the top of the pipette 14 and having a pin hole 16; a slot 17 formed at the bottom of the mounting base 13; a mounting groove 18 formed on the inner wall of the slot 17; a pin 19 slidably mounted on the inner wall of the mounting groove 18 and adapted to the pin hole 16; a sleeve plate 20 fixedly sleeved on the pin 19; and a spring 21 slidably sleeved on the pin 19. A pull ring 22 is fixedly installed at one end of the pin 19. By pulling the pull ring 22, the pin 19 is moved laterally, thereby separating the pin 19 from the pin hole 16. Then, the pipette 14 can be removed by pulling out the insert plate 15 from the slot 17. The insert plate 15 on the replaced pipette 14 is inserted into the slot 17. The spring 21 returns the sleeve plate 20, causing the pin 19 to be inserted into the pin hole 16, thereby locking the insert plate 15 in the slot 17. This completes the disassembly and replacement of the pipette 14, making it easier for staff to perform centralized cleaning of the pipette 14.

[0027] The sampling box 1 is hinged with a door 23, which has an observation window 24. A handle 25 is fixedly installed on the door 23, and a controller 26 is installed on the door 23. The sampling box 1 can be closed through the door 23, the sampling process can be observed through the observation window 24, and the device can be operated and controlled through the controller 26.

[0028] The working principle of the cross-contamination prevention sampling device provided by this utility model is as follows:

[0029] The original liquid cup 2 can hold the original liquid to be sampled, the test tube body 4 can be placed on the test tube rack 3, and the support pad 5 with multiple arc grooves 6 can provide cushioning support for the test tube body 4.

[0030] The liquid sampling mechanism can be moved horizontally by the longitudinal electric slide rail 7 and the transverse electric slide rail 8, and the liquid sampling mechanism can be moved up and down by the electric cylinder 9. The liquid pipette 14 can sample the original liquid in the original liquid cup 2 and transfer it to the test tube body 4.

[0031] The servo motor 124 and gear 125 drive the vertical shaft 122 to rotate, and the vertical shaft 122 drives the turntable 123 to rotate, thereby rotating and switching multiple liquid sampling mechanisms to avoid cross-contamination between multiple sampling and liquid transfer.

[0032] Pulling the pull ring 22 causes the pin 19 to move laterally, thereby separating the pin 19 from the pin hole 16. Then, the pipette 14 can be removed by pulling the insert plate 15 out of the slot 17. The insert plate 15 on the replaced pipette 14 is inserted into the slot 17. The spring 21 returns the sleeve plate 20, causing the pin 19 to be inserted into the pin hole 16, thereby locking the insert plate 15 in the slot 17. This completes the disassembly and replacement of the pipette 14, making it easier for staff to perform centralized cleaning of the pipette 14.

[0033] Compared with related technologies, the cross-contamination prevention sampling device provided by this utility model has the following beneficial effects:

[0034] This utility model provides a sampling device to prevent cross-contamination. A stock solution cup 2 can hold the stock solution to be sampled. A test tube rack 3 can hold the test tube body 4. A liquid sampling mechanism can sample and transfer the liquid. A displacement mechanism can move the liquid sampling mechanism horizontally and vertically. A switching mechanism can rotate and switch the liquid sampling mechanism to avoid cross-contamination between multiple sampling and transfer operations. A support pad 5 with multiple arc-shaped grooves 6 provides cushioning support for the test tube body 4. A longitudinal electric slide rail 7 and a transverse electric slide rail 8 can move the liquid sampling mechanism horizontally. An electric cylinder 9 can move the liquid sampling mechanism vertically. A pipette 14 can sample the stock solution in the stock solution cup 2 and transfer it into the test tube body 4. A slider 11 slides up and down on a limiting rod 10 to guide and limit the transverse electric slide rail 8. A servo motor... The machine 124 and gear 125 drive the vertical shaft 122 to rotate, and the vertical shaft 122 drives the turntable 123 to rotate, thereby rotating and switching multiple liquid sampling mechanisms to avoid cross-contamination between multiple sampling and pipetting. By pulling the pull ring 22, the pin 19 is moved laterally, thereby separating the pin 19 from the pin hole 16. Then, the pipette 14 can be removed by pulling the insert plate 15 out of the slot 17. The insert plate 15 on the replaced pipette 14 is inserted into the slot 17. The spring 21 returns the sleeve plate 20 to insert the pin 19 into the pin hole 16, thereby locking the insert plate 15 in the slot 17, thus completing the disassembly and replacement of the pipette 14. This facilitates centralized cleaning of the pipette 14 by the staff. The sampling box 1 can be closed through the door 23, and the sampling process can be observed through the observation window 24. The device can be operated and controlled through the controller 26.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sampling device for preventing cross-contamination, characterized in that, include: Sampling box; The original solution cup is placed inside the sampling box; A test tube rack is fixedly installed on the inner wall of the bottom of the sampling box; The test tube body is placed on the test tube rack; A liquid sampling mechanism located on the inner wall of the sampling chamber for sampling; A displacement mechanism is installed on the inner wall of the top of the sampling box to control the horizontal and vertical movement of the liquid sampling mechanism. A switching mechanism installed on the displacement mechanism for switching the liquid sampling mechanism.

2. The cross-contamination prevention sampling device according to claim 1, characterized in that, A support pad is fixedly installed on the bottom inner wall of the sampling box, and an arc-shaped groove is formed on the support pad.

3. The cross-contamination prevention sampling device according to claim 1, characterized in that, The displacement mechanism includes: A longitudinal electric slide rail is fixedly installed on the inner wall of the top of the sampling box; A transverse electric slide rail is fixedly installed on the longitudinal electric slide rail output block; An electric cylinder is fixedly installed on the transverse electric slide rail.

4. The cross-contamination prevention sampling device according to claim 3, characterized in that, A limiting rod is fixedly installed on the inner wall of the sampling box, and a slider is slidably sleeved on the limiting rod. The slider is fixedly connected to the transverse electric slide rail.

5. The cross-contamination prevention sampling device according to claim 3, characterized in that, The switching mechanism includes: A mounting plate fixedly installed on the output rod of the electric cylinder; A vertical shaft with a turntable is rotatably mounted on the bottom of the mounting plate; A servo motor is fixedly mounted on the bottom of the mounting plate; Gears that are fixedly installed on the output shaft of the servo motor and on the vertical shaft and mesh with each other.

6. The cross-contamination prevention sampling device according to claim 5, characterized in that, The liquid sampling mechanism includes: A mounting base that is fixedly installed on the turntable; A pipette mounted at the bottom of the mounting base; A plate with pin holes is fixedly installed on top of the pipette; A slot is provided at the bottom of the mounting base; A mounting groove formed on the inner wall of the slot; A pin rod that is slidably mounted on the inner wall of the mounting groove and adapted to the pin hole; A sleeve plate fixedly fitted onto the pin; A spring that is slidably sleeved on the pin; A pull ring is fixedly installed at one end of the pin.

7. The cross-contamination prevention sampling device according to claim 1, characterized in that, The sampling box is hinged to a door, which has an observation window, a handle, and a controller.

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