Sampling device for water paint inspection

By designing a sampling device with a pipe disassembly mechanism and an anti-backflow unidirectional input mechanism, the problems of inconvenient cleaning and cross-contamination of sampling devices in the prior art are solved. This achieves convenient disassembly and pollution-free sampling, ensuring the accuracy of sampling results and the quality control of water-based paints.

CN224136956UActive Publication Date: 2026-04-17TIANJIN DONGYI SHENGHUI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DONGYI SHENGHUI TECH CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing sampling devices for water-based paint testing are inconvenient to clean after sampling, and are prone to leaving residues of substances from the previous batch of samples, leading to cross-contamination and affecting the accuracy of test results and the quality control of water-based paint.

Method used

A sampling device was designed, which includes a pipe disassembly mechanism and an anti-backflow unidirectional input mechanism. The pipe can be easily disassembled and unidirectionally input through the cooperation of a ball and a return spring, ensuring the sample is free from contamination and accurate.

Benefits of technology

It enables convenient disassembly and cleaning of the sampling device, avoids cross-contamination of samples, and ensures the accuracy of sampling results and quality control of water-based paints.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water paint sampling, and discloses a sampling device for water paint inspection, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a storage barrel, the top of the storage barrel is fixedly connected with a barrel cover, and the top of the barrel cover is fixedly connected with a pipeline dismounting mechanism. The bottom of the pipeline dismounting mechanism is fixedly connected with an anti-backflow one-way input mechanism, the pipeline dismounting mechanism comprises a fixing pipe, the bottom of the fixing pipe is fixedly connected to the top of the barrel cover, the outer portion of the fixing pipe is slidably connected with a ball, and the outer portion of the fixing pipe is fixedly connected with a butt joint pipe; the exterior of the butt joint pipe is fixedly connected with a reset assembly. According to the utility model, when the sliding shell is pulled, the ball is extruded into the groove of the fixed pipe by the fixed pipe, and the sliding shell is loosened to finish butt joint, otherwise, the pipeline can be disassembled, and the pipeline can be cleaned more easily after being disassembled, so that the accuracy and pollution-free property of sampling each time are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of water-based paint sampling technology, and in particular to a sampling device for testing water-based paint. Background Technology

[0002] During the production process of water-based paint, manufacturers need to sample each batch of paint to test whether its quality meets the standards. The sampling device can ensure that representative samples are randomly obtained from different production batches, avoiding human error and ensuring the consistency of the paint throughout the entire production process. Through the sampling device, the viscosity, color, composition ratio, etc. of the paint can be checked regularly, and problems can be identified and adjusted in time.

[0003] A sampling device for testing water-based paints includes a return spring, a sliding housing, etc. The sampling device for testing water-based paints extracts samples from the paint flow to ensure that the samples are representative and uniform. The main purpose is to ensure the reliability of product quality, avoid inaccurate test results due to sample inhomogeneity and contamination, and thus ensure that the performance of the final product meets the standards.

[0004] In the prior art, some sampling devices used for water-based paint testing use fixed pipelines for sample transportation. The pipelines are inconvenient to clean, easily retain substances from the previous batch of samples, and are prone to cross-contamination when sampling different samples. This not only affects the accuracy of the test results but also leads to cross-contamination between different batches of samples, thus affecting the quality control of water-based paint. Therefore, a sampling device for water-based paint testing is proposed to solve the above problems. Utility Model Content

[0005] This utility model proposes a sampling device for testing water-based paints, aiming to improve the problem that some existing devices cannot disassemble the pipeline after sampling.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A sampling device for testing water-based paint includes a base plate, a storage tank fixedly connected to the top of the base plate, a lid fixedly connected to the top of the storage tank, a pipe disassembly mechanism fixedly connected to the top of the lid, and a backflow prevention one-way input mechanism fixedly connected to the bottom of the pipe disassembly mechanism. The pipe disassembly mechanism includes a fixed pipe, the bottom of which is fixedly connected to the top of the lid. A ball is slidably connected to the outside of the fixed pipe, a connecting pipe is fixedly connected to the outside of the fixed pipe, a reset assembly is fixedly connected to the outside of the connecting pipe, a sliding housing is fixedly connected to the reset assembly, a front placement groove is provided on the bottom front side of the sliding housing, and an output pipe is fixedly connected to the inside of the connecting pipe.

[0008] As a further description of the above technical solution:

[0009] The reset assembly includes a reset spring, the inner side of which is fixedly connected to the outer side of the connecting tube, and the outer side of which is fixedly connected to the inner side of the sliding housing.

[0010] As a further description of the above technical solution:

[0011] The anti-backflow unidirectional input mechanism includes a cylindrical shell, the top of which is fixedly connected to the bottom of the output tube. A narrow slot is provided at the top inside the cylindrical shell, and a wide sliding groove is provided at the bottom inside the cylindrical shell. A conical block is slidably connected inside the cylindrical shell, and a pressure spring is fixedly connected to the bottom of the conical block. A sampling box is fixedly connected to the bottom of the cylindrical shell.

[0012] As a further description of the above technical solution:

[0013] A weighing pan is fixedly connected to the bottom of the sampling box, and a weighing scale is fixedly connected to the bottom of the weighing pan.

[0014] As a further description of the above technical solution:

[0015] The bottom of the weighing scale is fixedly connected to the top of the base plate, and the outside of the pressure spring is fixedly connected to the inside of the cylindrical shell.

[0016] As a further description of the above technical solution:

[0017] The outer side of the sphere is slidably connected to the inside of the connecting tube, and the outer side of the sphere is slidably connected to the inside of the sliding outer shell.

[0018] As a further description of the above technical solution:

[0019] The inner side of the sliding outer shell is slidably connected to the outside of the connecting pipe, and the outside of the fixed pipe is fixedly connected to the inside of the storage tank.

[0020] As a further description of the above technical solution:

[0021] The outer part of the conical block is slidably connected to the inside of the wide groove, and the top of the conical block is slidably connected to the bottom of the narrow groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, pulling the sliding outer shell retracts the return spring, and the ball is stuck in the connecting pipe, connecting with the fixed pipe. The ball is squeezed out of the groove of the fixed pipe by the fixed pipe. Releasing the sliding outer shell completes the connection. Conversely, it can be disassembled. Water-based paint will adhere to the inner wall of the pipe. After disassembling the pipe, it is easier to clean, ensuring the accuracy and non-contamination of each sample. When it is necessary to quickly replace the pipe and deal with different types of water-based paint, the operation is more convenient.

[0024] 2. In this utility model, water-based paint enters the cylindrical shell through the output pipe. Under the pressure of the water-based paint flow, the conical block slides down under the pressure spring, and the water-based paint smoothly enters the sampling box. If the water-based paint flows in the opposite direction, the conical block will be blocked at the bottom of the narrow slot to prevent the water-based paint from flowing back. It can only be input into the sampling box in one direction. By preventing backflow, it is ensured that the sample taken from the storage tank is free from any external interference. Attached Figure Description

[0025] Figure 1 This is a perspective view of a sampling device for testing water-based paints according to the present invention.

[0026] Figure 2 This is a schematic diagram of the output tube of a sampling device for testing water-based paints proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Base plate; 2. Storage tank; 3. Tank lid; 4. Pipe disassembly mechanism; 5. Fixing pipe; 6. Spherical ball; 7. Connecting pipe; 8. Return spring; 9. Sliding outer shell; 10. Front placement slot; 11. Output pipe; 12. Anti-backflow one-way input mechanism; 13. Cylindrical outer shell; 14. Narrow slot; 15. Wide slide groove; 16. Conical block; 17. Pressure spring; 18. Sampling box; 19. Weighing pan; 20. Weighing scale. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a sampling device for testing water-based paint, including a base plate 1, which is the basic support part of the entire sampling device. A storage tank 2 is fixedly connected to the top of the base plate 1. The storage tank 2 is a storage container for containing water-based paint. A lid 3 is fixedly connected to the top of the storage tank 2. The main function of the lid 3 is to seal the storage tank 2 and prevent liquid leakage. A pipe disassembly mechanism 4 is fixedly connected to the top of the lid 3. The pipe disassembly mechanism 4 can realize the stable connection and disassembly of the pipe. A backflow prevention one-way input mechanism 12 is fixedly connected to the bottom of the pipe disassembly mechanism 4. The backflow prevention one-way input mechanism 12 is used to ensure that the water-based paint does not flow back when it is drawn from the storage tank 2, so as to avoid contamination and maintain the hygiene of the operating environment.

[0033] The pipe disassembly mechanism 4 includes a fixed pipe 5, the bottom of which is fixedly connected to the top of the bucket lid 3, and the outside of which is fixedly connected to the inside of the storage bucket 2. The bottom of the fixed pipe 5 is fixedly connected to the top of the bucket lid 3, providing stable support. A ball 6 is slidably connected to the outside of the fixed pipe 5. The ball 6 can slide inside the fixed pipe 5, inside the connecting pipe 7, and inside the sliding outer shell 9. The outside of the ball 6 is slidably connected to the inside of the connecting pipe 7 and the outside of the sliding outer shell 9. The connecting pipe 7 is fixedly connected to the outside of the fixed pipe 5. The connecting pipe 7 and the fixed pipe 5 are connected to each other for transporting water-based paint samples.

[0034] A reset assembly is fixedly connected to the outside of the connecting pipe 7. The reset assembly includes a reset spring 8. The inner side of the reset spring 8 is fixedly connected to the outer side of the connecting pipe 7, and the outer side of the reset spring 8 is fixedly connected to the inner side of the sliding housing 9. The reset spring 8 can drive the sliding housing 9 to retract and reset. The reset assembly is fixedly connected to the sliding housing 9. The inner side of the sliding housing 9 is slidably connected to the outside of the connecting pipe 7. A front placement groove 10 is opened on the bottom front side of the sliding housing 9. An output pipe 11 is fixedly connected to the inside of the connecting pipe 7. When the sliding housing 9 is pulled, the spring drives the sliding housing 9 to retract. The ball 6 is stuck in the placement groove on the front side of the sliding housing 9 and in the connecting pipe 7. After the connecting pipe 7 is connected to the fixed pipe 5, the fixed pipe 5 slides into the inside of the connecting pipe 7, and the ball 6 enters the groove inside the fixed pipe 5. At this time, the sliding housing 9 is released, and the ball 6 is fixed in the groove outside the fixed pipe 5, inside the connecting pipe 7, and inside the sliding housing 9. The connection of the pipes is completed, and sampling can begin.

[0035] Reference Figure 1 , Figure 2 and Figure 4The anti-backflow one-way input mechanism 12 includes a cylindrical housing 13. The top of the cylindrical housing 13 is fixedly connected to the bottom of the output pipe 11. The cylindrical housing 13 houses the entire internal structure of the anti-backflow one-way input mechanism 12. A narrow slot 14 is provided at the top of the interior of the cylindrical housing 13. When liquid backflows, the conical block 16 can abut against the narrow slot 14 to seal it, preventing the liquid from flowing back out. A wide groove 15 is provided at the bottom of the interior of the cylindrical housing 13. The wide groove 15 can accommodate... The conical block 16 slides inside to allow the liquid to enter the sampling box 18 smoothly and prevent backflow. The conical block 16 is slidably connected inside the cylindrical shell 13. The outside of the conical block 16 is slidably connected inside the wide groove 15. The top of the conical block 16 is slidably connected to the bottom of the narrow slot 14. The function of the conical block 16 is to provide unidirectional flow control during the liquid flow process. The conical block 16 is slidably connected inside the wide groove 15 and the bottom of the narrow slot 14 to prevent the liquid from flowing backward during the flow process.

[0036] A pressure spring 17 is fixedly connected to the bottom of the conical block 16. The pressure spring 17 is externally fixedly connected to the inside of the cylindrical shell 13. The pressure spring 17 provides a reaction force to the conical block 16 to ensure normal operation when preventing backflow. The pressure spring 17 adjusts the opening and closing state of the conical block 16 through its elasticity, thereby controlling the flow direction of the fluid. A sampling box 18 is fixedly connected to the bottom of the cylindrical shell 13. The sampling box 18 is the actual collection container for the water-based paint. A weighing pan 19 is fixedly connected to the bottom of the sampling box to hold the sampled liquid and measure the sample volume. For accurate weighing, a weighing pan 19 is fixedly connected to the bottom of the sampling box 18, and a weighing scale 20 is fixedly connected to the bottom of the weighing pan 19. The weighing pan 19 is used to hold the sampled liquid and ensure that the weight of each sample is accurate. The weighing scale 20 is fixedly connected to the bottom of the weighing pan 19. The weight of the liquid in the pan is accurately recorded by an internal electronic sensor. The bottom of the weighing scale 20 is fixedly connected to the top of the base plate 1. The weighing scale 20 monitors the weight of the liquid in the sampling box 18 in real time through an internal electronic sensor and records the data.

[0037] Working principle: Water-based paint in storage tank 2 can be sampled. Pipe disassembly mechanism 4 on tank lid 3 is used to install the pipe. Pulling the sliding outer shell 9 causes the return spring 8 to retract the sliding outer shell 9. The ball 6 is stuck in the groove 10 on the front side of the sliding outer shell 9 and in the connecting pipe 7. After connecting pipe 7 is connected to fixed pipe 5, fixed pipe 5 slides into the inside of connecting pipe 7, and ball 6 enters the groove inside fixed pipe 5. At this time, the sliding outer shell 9 is released, and ball 6 is fixed in the groove outside fixed pipe 5, inside connecting pipe 7 and inside sliding outer shell 9. The connection of the pipe is completed. Water-based paint is output from output pipe 11 and sampling can begin. The above operation can be reversed to disassemble the pipe, which is convenient for cleaning the pipe and can sample different water-based paints without causing cross-contamination.

[0038] In the anti-backflow one-way input mechanism 12, under the flow pressure of the water-based paint, the conical block 16 slides down in the wide groove 15 opened in the cylindrical shell 13 under the push of the pressure spring 17, and the water-based paint smoothly enters the sampling box 18. If the water-based paint flows backward, the conical block 16 will be pressed against the bottom of the narrow slot 14 to prevent liquid backflow and ensure that the sampled water-based paint is not contaminated. After sampling, the operator can easily disassemble the pipe and clean the inside to ensure the accuracy and non-contamination of the next sampling. The weighing pan 19 is used to carry the sampled liquid and ensure that the weight of each sample is accurate. The bottom of the weighing pan 19 is fixedly connected to the weighing scale 20, and the weight of the liquid in the pan is accurately recorded by the internal electronic sensor.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for waterborne paint inspection comprising a base plate (1), characterized in that: A storage tank (2) is fixedly connected to the top of the base plate (1), a lid (3) is fixedly connected to the top of the storage tank (2), a pipe disassembly mechanism (4) is fixedly connected to the top of the lid (3), and an anti-backflow one-way input mechanism (12) is fixedly connected to the bottom of the pipe disassembly mechanism (4). The pipe disassembly mechanism (4) includes a fixed pipe (5), the bottom of which is fixedly connected to the top of the bucket cover (3). A ball (6) is slidably connected to the outside of the fixed pipe (5). A connecting pipe (7) is fixedly connected to the outside of the fixed pipe (5). A reset assembly is fixedly connected to the outside of the connecting pipe (7). A sliding shell (9) is fixedly connected to the reset assembly. A front placement groove (10) is opened on the bottom front side of the sliding shell (9). An output pipe (11) is fixedly connected to the inside of the connecting pipe (7).

2. A sampling device for the inspection of water-borne paints according to claim 1, characterized in that: The reset assembly includes a reset spring (8), the inner side of which is fixedly connected to the outer side of the connecting tube (7), and the outer side of which is fixedly connected to the inner side of the sliding housing (9).

3. A sampling device for the inspection of water-borne paints according to claim 1, characterized in that: The anti-backflow unidirectional input mechanism (12) includes a cylindrical shell (13), the top of which is fixedly connected to the bottom of the output tube (11). A narrow slot (14) is provided at the top inside the cylindrical shell (13), and a wide sliding groove (15) is provided at the bottom inside the cylindrical shell (13). A conical block (16) is slidably connected inside the cylindrical shell (13), and a pressure spring (17) is fixedly connected to the bottom of the conical block (16). A sampling box (18) is fixedly connected to the bottom of the cylindrical shell (13).

4. A sampling device for the inspection of water-borne paints according to claim 3, characterized in that: The bottom of the sampling box (18) is fixedly connected to a weighing pan (19), and the bottom of the weighing pan (19) is fixedly connected to a weighing scale (20).

5. A sampling device for the inspection of water-borne paints according to claim 4, characterized in that: The bottom of the weighing scale (20) is fixedly connected to the top of the base plate (1), and the outside of the pressure spring (17) is fixedly connected to the inside of the cylindrical shell (13).

6. A sampling device for the inspection of water-borne paints according to claim 1, characterized in that: The outer side of the sphere (6) is slidably connected to the inside of the connecting tube (7), and the outer side of the sphere (6) is slidably connected to the inside of the sliding outer shell (9).

7. A sampling device for the inspection of water-borne paints according to claim 1, characterized in that: The inner side of the sliding outer shell (9) is slidably connected to the outside of the connecting tube (7), and the outside of the fixed tube (5) is fixedly connected to the inside of the storage tank (2).

8. A sampling device for the inspection of water-borne paints according to claim 3, characterized in that: The outer part of the conical block (16) is slidably connected to the inside of the wide groove (15), and the top of the conical block (16) is slidably connected to the bottom of the narrow slot (14).