PCB or FPC medicine tank special sampling device
The sampling device, with its three-section tube structure and dual-valve design, solves the problems of easy clogging and interference from impurities in traditional sampling devices, achieving accuracy and safety in drug liquid sampling and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUNHUA TECHNOLOGICAL KUSN
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional sampling methods are prone to drawing in air bubbles and impurities, resulting in uneven concentrations, and the taps are easily clogged or corroded, making it difficult to meet the requirements for testing pharmaceutical solutions in precision manufacturing.
The sampling device adopts a three-section tube structure, including a first section tube, a second section tube, and a third section tube that are connected longitudinally, laterally, and vertically. It is equipped with a double valve and a three-way waste liquid pipe. Combined with the design of clamps and cover plates, it can achieve stable sampling of drug solution and effective discharge of waste liquid.
To ensure sampling accuracy, reduce interference from impurities, prevent siphon backflow, extend pipeline life, maintain the cleanliness of the pharmaceutical solution, and improve production safety and environmental compliance.
Smart Images
Figure CN224354141U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of chemical treatment technology for circuit boards, and more specifically, to a sampling device for chemical treatment tanks for PCBs or FPCs. Background Technology
[0002] In PCB or FPC production, the quality of the chemical solution in the chemical tank is crucial to production quality and requires regular sampling and testing. Traditional sampling methods often involve installing a faucet directly on the tank or using a container to take samples directly from the chemical tank, but this approach has several drawbacks.
[0003] During sampling, the liquid in the water tank may be agitated, circulated, or fluctuate in liquid level, resulting in the intake of air bubbles, impurities, or uneven concentrations of the liquid. Furthermore, the outflow rate of the liquid depends on the liquid level and pressure in the water tank, making it difficult to accurately control the sampling volume. The faucet is directly connected to the water tank, and if the liquid contains particulate impurities, it can easily clog the faucet. The faucet valve is in contact with high-concentration liquid for a long time, and the seals are easily corroded, leading to leakage or valve malfunction. This makes it difficult to meet the stringent requirements for liquid testing in precision manufacturing.
[0004] Therefore, there is a need for a dedicated sampling device for medicine tanks that offers convenient sampling, high stability of the medicine solution, and easy equipment maintenance.
[0005] Therefore, this application proposes a dedicated sampling device for PCB or FPC chemical tanks to solve the aforementioned problems. Utility Model Content
[0006] To address the aforementioned issues, this application provides a dedicated sampling device for PCB or FPC chemical tanks.
[0007] The PCB or FPC chemical tank sampling device provided in this application adopts the following technical solution:
[0008] A dedicated sampling device for PCB or FPC chemical tanks, including:
[0009] The tank body has a sampling tube connected to its front side. The sampling tube includes a first section of tube arranged longitudinally, a second section of tube arranged laterally, and a third section of tube arranged vertically downward, which are connected in sequence. A first valve is connected to the second section of tube, and a second valve is connected to the third section of tube.
[0010] The first section of the tube is vertically connected to the front of the tank, the second section of the tube is horizontally connected to the first section of the tube, and the end of the second section of the tube is vertically and vertically downward connected to the third section of the tube.
[0011] A water receiving trough is provided on the lower side of the tank body, directly below the third section of the pipe, and the bottom of the water receiving trough is connected to a waste liquid pipe.
[0012] Furthermore, the bottom of the water receiving tank is an inverted trapezoidal structure, with the lowest point connected to the waste liquid pipe, and a draining tray is provided inside the water receiving tank.
[0013] The above technical solutions can improve waste liquid discharge efficiency, intercept solid particles (such as copper slag and debris) dripping from the sampled liquid, and prevent blockage of the waste liquid pipe; at the same time, they can also reduce the amount of medicine adhering to the bottom of the sampling bottle.
[0014] Furthermore, a short pipe connects the second section of the pipe and the third section of the pipe, and the outer diameter of the short pipe is equal to the diameter of the second section of the pipe and the third section of the pipe; a clamp is provided on the front of the groove, and the clamp engages with the outer surface of the short pipe.
[0015] The above technical solution secures the short pipe with clips on the front of the tank, preventing the pipe from shaking during sampling. Especially in high-frequency sampling scenarios, this can extend the service life of the pipe and reduce the risk of loosening of the interface and leakage caused by vibration.
[0016] Furthermore, a cover plate is provided on the top of the trough, and handles are symmetrically provided on the top of the cover plate.
[0017] Through the above technical solutions, the top cover of the tank effectively isolates dust and debris, maintains the cleanliness of the medicine solution inside the tank, and reduces the deterioration of the medicine solution caused by external pollution. The symmetrical handle design makes it easy to open the cover, which can be operated with one hand. In production lines that take samples multiple times a day, this can reduce the labor intensity of operators.
[0018] Furthermore, a third valve is provided on the body of the waste liquid pipe, the waste liquid pipe is vertically connected to the bottom of the water receiving tank, and the bottom of the waste liquid pipe is also horizontally connected to the main drain pipe, the waste liquid pipe and the main drain pipe forming a three-way pipe structure.
[0019] Through the above technical solution, a third valve is installed in the waste liquid pipe, which can control the discharge as needed. It is connected to the main drain pipe with a three-way structure, which supports the diversion of waste liquid to different treatment systems (such as the separation of acidic and alkaline waste liquids). This design not only facilitates pipeline maintenance, but also avoids the generation of harmful gases by mixing waste liquids of different properties, thereby improving production safety and environmental compliance.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] (1) The first section of the pipe, which is set horizontally, can serve as an "impurity settling zone". The denser particulate impurities in the liquid (such as copper slag and polymer debris generated during PCB processing) will gradually settle at the bottom of the pipe under the action of gravity. Subsequent sampling can be carried out by controlling the opening time of the valve of the second section of the pipe to extract the relatively pure liquid in the upper part of the pipe, thereby reducing the interference of impurities on the sample detection results and ensuring the accuracy of sampling.
[0022] (2) The second section of the tube plays the role of "dynamic isolation". It effectively separates the dynamic drug environment in the tank from the sampling operation. Even if the drug in the tank is in a state of violent movement due to stirring, circulation and other reasons, the drug in the horizontal second section of the tube can remain relatively stable. When sampling, you only need to open the first valve and extract the static drug in the second section of the tube to obtain a more representative sample, avoiding sample deviation caused by dynamic changes in the drug in the tank.
[0023] (3) A dual-valve structure is set up. After the drug sample is taken, the first valve is closed first, and then the second valve is closed. This can effectively prevent the drug solution in the tank from flowing back to the sampling pipeline through the first section of the pipe, thus avoiding the siphon phenomenon. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this application;
[0025] Figure 2 This is a three-dimensional schematic diagram of this application.
[0026] The following are the labels in the diagram: 1. Tank body; 2. First pipe section; 3. Second pipe section; 4. Third pipe section; 5. First valve; 6. Second valve; 7. Water receiving tank; 8. Waste liquid pipe; 9. Short pipe; 10. Clamp; 11. Cover plate; 12. Handle; 13. Third valve; 14. Main drain pipe. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 application 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 of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] Example:
[0031] The following is in conjunction with the appendix Figure 1 -2 provides further detailed description of this application.
[0032] This application discloses a dedicated sampling device for PCB or FPC chemical tanks, including:
[0033] The tank body 1 has a sampling tube connected to its front side. The sampling tube includes a first section 2 arranged longitudinally, a second section 3 arranged laterally, and a third section 4 arranged vertically downward. A first valve 5 is connected to the second section 3, and a second valve 6 is connected to the third section 4.
[0034] The first section of pipe 2 is vertically connected to the front of the tank 1, the second section of pipe 3 is horizontally connected to the first section of pipe 2, and the end of the second section of pipe 3 is vertically and vertically downward connected to the third section of pipe 4.
[0035] A water receiving tank 7 is provided on the lower side of the tank body 1, directly below the third section of pipe 4, and the bottom of the water receiving tank 7 is connected to a waste liquid pipe 8.
[0036] See Figure 1 and Figure 2 The bottom of the water receiving tank 7 is an inverted trapezoidal structure, and the lowest point is connected to the waste liquid pipe 8. The inside of the water receiving tank 7 is equipped with a draining tray; this improves the waste liquid discharge efficiency and can also intercept solid particles (such as copper slag and debris) of the dripping medicine during the sampling process, preventing the waste liquid pipe 8 from being blocked; at the same time, it can also reduce the amount of medicine adhering to the bottom of the sampling bottle.
[0037] See Figure 1 and Figure 2 A short pipe 9 connects the second section 3 and the third section 4. The outer diameter of the short pipe 9 is equal to the diameter of the second section 3 and the third section 4. A clamp 10 is provided on the front of the tank body 1, which is engaged with the outer surface of the short pipe 9. The clamp 10 on the front of the tank body 1 fixes the short pipe 9 to prevent the pipeline from shaking during sampling. Especially in high-frequency sampling scenarios, it can extend the service life of the pipeline and reduce the risk of loosening of the interface and leakage caused by vibration.
[0038] See Figure 1 and Figure 2 The top of the tank 1 is equipped with a cover plate 11, and the top of the cover plate 11 is symmetrically equipped with handles 12. The top cover plate 11 of the tank 1 effectively isolates dust and debris, maintains the cleanliness of the medicine liquid in the tank, and reduces the deterioration of the medicine liquid caused by external pollution. The symmetrical handles 12 design makes it easy to open the cover plate 11, which can be operated with one hand. In production lines that take samples multiple times a day, this can reduce the labor intensity of operators.
[0039] See Figure 1 and Figure 2 The waste liquid pipe 8 is equipped with a third valve 13. The waste liquid pipe 8 is vertically connected to the bottom of the water receiving tank 7, and the bottom of the waste liquid pipe 8 is also horizontally connected to the main drain pipe 14. The waste liquid pipe 8 and the main drain pipe 14 form a three-way pipe structure. The waste liquid pipe 8 is equipped with a third valve 13, which can control the discharge as needed. In conjunction with the three-way structure, it connects to the main drain pipe 14, supporting the diversion of waste liquid to different treatment systems (such as the separation of acidic and alkaline waste liquids). This design not only facilitates pipeline maintenance, but also avoids the generation of harmful gases from the mixing of waste liquids of different properties, thereby improving production safety and environmental compliance.
[0040] The implementation principle of the dedicated sampling device for PCB or FPC chemical tanks in this application embodiment is as follows:
[0041] First, open the first valve 5, then briefly open the second valve 6 for 3-5 seconds to flush the pipeline with the liquid in tank 1 and remove residual impurities. Then close the second valve 6. Next, slightly open the first valve 5 to allow the liquid to slowly flow into the second section of pipe 3. Once the pipe is full of liquid and stable, adjust the second valve 6 to control the flow rate and connect the liquid to the sampling container.
[0042] After sampling, close the first valve 5 in sequence to cut off the pressure source of tank 1, wait 3 to 5 seconds to allow the liquid in the pipeline to stand still, and then close the second valve 6 to prevent siphon backflow.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A dedicated sampling device for PCB or FPC chemical tanks, characterized in that, include: The tank (1) has a sampling tube connected to its front side. The sampling tube includes a first section (2) arranged longitudinally, a second section (3) arranged laterally, and a third section (4) arranged vertically downward. A first valve (5) is connected to the second section (3), and a second valve (6) is connected to the third section (4). The first section (2) is vertically connected to the front of the tank (1), the second section (3) is horizontally connected to the first section (2), and the end of the second section (3) is vertically and vertically downward connected to the third section (4). A water receiving tank (7) is provided on the lower side of the tank body (1) directly below the third section pipe (4), and the bottom of the water receiving tank (7) is connected to a waste liquid pipe (8).
2. The sampling device for PCB or FPC chemical tanks according to claim 1, characterized in that: The bottom of the water receiving tank (7) is an inverted trapezoidal structure, and the lowest point is connected to the waste liquid pipe (8). The inside of the water receiving tank (7) is equipped with a draining tray.
3. The sampling device for PCB or FPC chemical tanks according to claim 1, characterized in that: A short pipe (9) is connected between the second section (3) and the third section (4). The outer diameter of the short pipe (9) is equal to the diameter of the second section (3) and the third section (4). A clamp (10) is provided on the front of the groove (1), and the clamp (10) is engaged with the outer surface of the short pipe (9).
4. The sampling device for PCB or FPC chemical tanks according to claim 1, characterized in that: The top of the trough (1) is provided with a cover plate (11), and the top of the cover plate (11) is symmetrically provided with handles (12).
5. The sampling device for PCB or FPC chemical tanks according to claim 1, characterized in that: The waste liquid pipe (8) is equipped with a third valve (13). The waste liquid pipe (8) is vertically connected to the bottom of the water receiving tank (7). The bottom of the waste liquid pipe (8) is also horizontally connected to the main drain pipe (14). The waste liquid pipe (8) and the main drain pipe (14) form a three-way pipe structure.