A hand control press type water sample rapid collection and storage integrated device

Abstract

The utility model discloses a hand -control press formula water sample quick collection and storage integration device, including water sample storage bag, the top of water sample storage bag one end is provided with the water inlet pipe, and the water inlet pipe is seted up with the water inlet, the bottom of water sample storage bag is provided with the drain, and the outside of drain is provided with control valve, install the cone -shaped cylinder in the water inlet pipe, and the bottom end of cone -shaped cylinder stretches into water sample storage bag inside, the outside of cone -shaped cylinder is provided with screen, and the bottom of cone -shaped cylinder is provided with sterile filter membrane layer, the top of inside water inlet pipe is installed with check valve, and check valve is located below water inlet, the utility model has the beneficial effects: the utility model can complete the filtration work in the sampling site instantaneously, can greatly shorten the time of sample processing simultaneously, can reduce the risk of microbial change, reduce the operation difficulty, improve the work efficiency, realize water quality analysis in the precision and timely development of sampling point, guarantee the real -time nature and reliability of data.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a hand-operated, press-type integrated device for rapid water sample collection and storage. Background Technology

[0002] In water quality testing, aquatic microorganisms and physicochemical properties are two key indicators. The conventional procedure involves collecting water samples in the field, safely preserving them, transporting them back to the laboratory, filtering them, and then taking samples of the microorganisms on the filter membrane and the filtered water for analysis. This entire process involves multiple steps, including field sampling, sample preservation, sample transportation, laboratory filtration, and subsequent testing, each requiring meticulous operation. However, microorganisms are highly susceptible to change during preservation and transportation, interfering with the accuracy of experimental results. The journey from the field to the laboratory is time-consuming and greatly affected by surrounding environmental conditions. Furthermore, the lack of standardized water sampling containers and defined sampling volumes makes samples prone to contamination and mixing. Therefore, we propose a hand-operated, pressure-activated integrated water sample collection and storage device. Utility Model Content

[0003] The purpose of this invention is to provide a hand-controlled, press-type integrated device for rapid water sample collection and storage, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hand-operated, press-type integrated device for rapid water sample collection and storage, comprising a water sample storage bag, an inlet cylinder at one end of the top of the water sample storage bag with an inlet, a drain outlet at the bottom of the water sample storage bag with a control valve on the outside of the drain outlet, a conical cylinder installed inside the inlet cylinder with its bottom end extending into the water sample storage bag, a screen on the outside of the conical cylinder with a sterile filter membrane layer at the bottom of the conical cylinder, a one-way valve installed at the top of the inside of the inlet cylinder below the inlet, an adapter installed inside the inlet cylinder below the one-way valve with a filter outlet at the top of the adapter.

[0005] Preferably, the one-way valve includes a housing, which is fixedly installed inside the inlet cylinder. An annular plate is integrally provided at the top of the interior of the housing, and a positioning cylinder is installed inside the annular plate. A sliding rod is slidably connected inside the positioning cylinder. A sealing plate is fixedly connected to the outside of the sliding rod. An annular protrusion is integrally provided at the bottom of the inner wall of the housing, and a limiting cylinder is provided inside the annular protrusion. The bottom end of the sliding rod slides through the limiting cylinder. A spring is sleeved on the outside of the sliding rod between the sealing plate and the limiting cylinder, and the two ends of the spring are fixedly connected to the limiting cylinder and the sealing plate, respectively.

[0006] Preferably, a limiting block is provided at the bottom of the slide rod, the diameter of the sealing plate is larger than the diameter of the central hole of the annular plate, and the diameter of the sealing plate is smaller than the diameter of the central hole of the annular protrusion.

[0007] Preferably, the adapter is snapped into the inside of the water inlet cylinder, and annular sealing rings are equidistantly embedded on the outer side of the adapter, with the annular sealing rings tightly fitting against the inner wall of the water inlet cylinder.

[0008] Preferably, the water sample storage bag has a scale line on one side and a label on the other side.

[0009] Preferably, the top of the water sample storage bag is provided with a pull ring, and the pull ring is a metal ring.

[0010] Preferably, a limiting groove is provided on the top of the adapter, the water filter is embedded in the limiting groove, and a sterile filter membrane cartridge is provided inside the adapter below the water filter.

[0011] Preferably, the bottom of the adapter is symmetrically provided with protrusions on the outside of the sterile filter membrane cartridge.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In use, this invention allows for water sample collection simply by holding the water sample storage bag and squeezing and releasing it. The inlet tube is placed in the water to be sampled, the storage bag is squeezed to expel air, and then released. Utilizing the pressure difference between the inside and outside, water is rapidly forced through the inlet into the device, passes through multiple layers of filtration, and is then stored in the storage bag. The entire process requires no complex operations or additional tools, enabling rapid and efficient water sample collection and storage, significantly improving sampling efficiency and providing more real-time and accurate data for water quality analysis. The device is simple to operate, easy to learn and use, and suitable for personnel with various technical backgrounds.

[0013] This invention features multiple filtration and backflow prevention functions, effectively ensuring water sample quality. The screen, sterile filter membrane layer, and filter inlet and membrane cartridge in the adapter within the inlet cylinder filter the incoming water sample multiple times, removing impurities and microorganisms to ensure the purity of the collected sample. Simultaneously, the one-way valve design is crucial. When the bag is empty, water pressure opens the sealing plate to allow water inflow; conversely, when the water sample storage bag contains water, squeezing the bag again presses the sealing plate against the annular plate, preventing water leakage and avoiding external contamination of the collected sample. This provides a reliable guarantee for subsequent accurate water quality testing and analysis.

[0014] This invention is inexpensive to manufacture, reduces the use of expensive equipment, lowers sampling costs, and features a scale and one-way valve for precise control of the amount of sample taken at one time. The sterile filter membrane ensures the activity and diversity of microorganisms during collection, preservation, and transportation, guaranteeing the reliability of test results. The device is lightweight, foldable, and easy to carry in the field. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention. Figure 3 This is a cross-sectional view and structural schematic diagram of the water inlet cylinder and conical cylinder of this utility model; Figure 4 This is a schematic diagram of the internal structure of the one-way valve of this utility model; Figure 5 This is a schematic diagram of the positional structure of the label of this utility model.

[0016] In the diagram: 1. Water sample storage bag; 2. Water inlet cylinder; 3. Water inlet; 4. Water outlet; 5. Control valve; 6. Scale line; 7. Label; 8. Conical cylinder; 9. Screen; 10. Check valve; 11. Adapter; 12. Filter outlet; 13. Protruding plate; 14. Outer shell; 15. Annular plate; 16. Positioning cylinder; 17. Slide rod; 18. Sealing plate; 19. Spring; 20. Annular protrusion; 21. Limiting cylinder; 22. Pull ring; 23. Sterile filter membrane layer; 24. Sterile filter membrane cylinder. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 , Figure 2 Figure 5 and Figure 3 This utility model provides a technical solution: a hand-controlled, press-type integrated device for rapid water sample collection and storage, including a water sample storage bag 1, a water inlet cylinder 2 at one end of the top of the water sample storage bag 1, and a water inlet 3 at the opening of the water inlet cylinder 2, and a drain outlet 4 at the bottom of the water sample storage bag 1, and a control valve 5 at the outside of the drain outlet 4.

[0019] It should be noted that the water sample storage bag 1 is made of high-quality materials with good flexibility, elasticity and extensibility, such as medical-grade silicone or food-grade plastic. It can be repeatedly squeezed and restored to its original shape, making the water sample storage bag 1 foldable. It is lightweight and easy to carry, which improves the reusability and reduces the production cost. It is available in various sizes, such as 100ml-1000ml, to meet diverse sampling needs.

[0020] A conical cylinder 8 is installed inside the water inlet cylinder 2, and the bottom end of the conical cylinder 8 extends into the water sample storage bag 1. A screen 9 is provided on the outside of the conical cylinder 8, and a sterile filter membrane layer 23 is provided at the bottom of the conical cylinder 8. A one-way valve 10 is installed at the top inside the water inlet cylinder 2, and the one-way valve 10 is located below the water inlet 3. An adapter 11 is installed inside the water inlet cylinder 2 below the one-way valve 10, and a filter port 12 is provided at the top of the adapter 11.

[0021] It should be noted that the one-way valve 10 is designed to seal the water sample after it is collected into the water sample storage bag 1, preventing the water from flowing back out and being contaminated by the outside world, thus ensuring the safety and stability of the sample. The sealed water sample bag is then taken back to the laboratory for the testing of the physicochemical properties of the water.

[0022] Please see Figure 3 and Figure 4 The one-way valve 10 includes a housing 14, which is fixedly installed inside the inlet cylinder 2. An annular plate 15 is integrally provided at the top of the inside of the housing 14, and a positioning cylinder 16 is installed inside the annular plate 15. A sliding rod 17 is slidably connected inside the positioning cylinder 16. A sealing plate 18 is fixedly connected to the outside of the sliding rod 17. An annular protrusion 20 is integrally provided at the bottom of the inner wall of the housing 14, and a limiting cylinder 21 is provided inside the annular protrusion 20. The bottom end of the sliding rod 17 slides through the limiting cylinder 21. A spring 19 is sleeved on the outside of the sliding rod 17 between the sealing plate 18 and the limiting cylinder 21, and the two ends of the spring 19 are fixedly connected to the limiting cylinder 21 and the sealing plate 18, respectively.

[0023] It should be noted that when using this utility model, hold the water sample storage bag 1 by hand. When there is no water in the bag, the one-way valve 10 is in the closed state. Place the water inlet cylinder 2 into the water to be sampled, open the drain outlet 4, and squeeze the water sample storage bag 1 to expel the gas inside the water sample storage bag 1, reducing the internal air pressure. Then close the control valve 5 and release the water sample storage bag 1. When the pressure is released, the air pressure inside the bag is still lower than the outside pressure. At this time, the water pressure is relatively high, and water enters the water inlet cylinder 2 through the water inlet 3. As the water pressure increases, it pushes the sealing plate 18 down and compresses the spring 19, causing... When the sealing plate 18 is disconnected from the annular plate 15, the one-way valve 10 is in the open state, quickly drawing in the water sample. The water sample enters the adapter 11 through the filter port 12, where it undergoes preliminary filtration. The water entering the adapter 11 is then filtered again through the sterile filter membrane cartridge 24, and then enters the conical cylinder 8. Finally, it passes through the screen 9 and the sterile filter membrane layer 23 on the conical cylinder 8 and enters the water sample storage bag 1 for storage. However, when there is already water in the water sample storage bag 1, the bag is squeezed again, and the sealing plate 18 closes and is pressed tightly onto the annular plate 15, thereby preventing the water sample from flowing out.

[0024] Please see Figure 4 A limit block is provided at the bottom of the slide bar 17, the diameter of the sealing plate 18 is greater than the diameter of the central hole of the annular plate 15, and the diameter of the sealing plate 18 is smaller than the diameter of the central hole of the annular protrusion 20.

[0025] It should be noted that the diameter of the sealing plate 18 is set so that when the sealing plate 18 is separated from the annular plate 15, water can enter the water sample storage bag 1, and when the sealing plate 18 is attached to the annular plate 15, it can seal the water and prevent the backflow of the internal water.

[0026] Please see Figure 3 The adapter 11 is snapped into the inside of the water inlet cylinder 2. An annular sealing ring is embedded in the outer side of the adapter 11 at equal intervals, and the annular sealing ring is tightly fitted to the inner wall of the water inlet cylinder 2.

[0027] It should be noted that the annular sealing ring can seal the adapter 11 with the inner wall of the water inlet cylinder 2, preventing unfiltered water samples from entering the water sample storage bag 1. At the same time, the annular sealing ring can increase the friction between the adapter 11 and the water inlet cylinder 2 to a certain extent, preventing them from falling off.

[0028] Please see Figure 1 and Figure 4 The water sample storage bag 1 has a scale line 6 on one side and a label 7 on the other side.

[0029] It should be noted that the outer packaging of the water sample storage bag 1 is clearly marked with milliliter scale 6, which facilitates accurate measurement of water sample volume and ensures quantitative analysis of water samples taken from the region. A special label area 7 is reserved on the surface of the water sample storage bag 1, which allows users to record important information such as sampling time and location in a timely manner during the sampling process, so as to accurately trace and locate the sample in the future.

[0030] Please see Figure 1 The top of the water sample storage bag 1 is provided with a pull ring 22, and the pull ring 22 is a metal ring.

[0031] Please see Figure 3 A limiting groove is provided on the top of the adapter 11, and the filter port 12 is embedded in the limiting groove. A sterile filter membrane cartridge 24 is provided inside the adapter 11 below the filter port 12.

[0032] It should be noted that the sterile filter membrane cartridge 24 can filter the water to prevent dirt from entering the water sample storage bag 1, and also avoids the water stored inside from being contaminated.

[0033] Please see Figure 3 The bottom of the adapter 11 is symmetrically provided with protrusions 13 on the outside of the sterile filter membrane cartridge 24.

[0034] It should be noted that the protruding plate 13 is designed to facilitate hand operation and make it easy to connect the adapter 11 to the water inlet cylinder 2.

[0035] In summary, this invention can complete the filtration process on-site while retaining the filtered water sample, which can significantly shorten the sample processing time, reduce the risk of microbial changes, lower the operational difficulty, improve work efficiency, and enable accurate and timely water quality analysis at the sampling point, ensuring the real-time nature and reliability of the data.

[0036] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hand-operated, press-type integrated device for rapid water sample collection and storage, characterized in that, The system includes a water sample storage bag (1), with an inlet cylinder (2) at one end of the top of the water sample storage bag (1) and an inlet (3) at the bottom of the water sample storage bag (1). A drain outlet (4) is provided at the bottom of the water sample storage bag (1) and a control valve (5) is provided on the outside of the drain outlet (4). A conical cylinder (8) is installed inside the inlet cylinder (2) and the bottom end of the conical cylinder (8) extends into the water sample storage bag (1). A screen (9) is provided on the outside of the conical cylinder (8) and a sterile filter membrane layer (23) is provided at the bottom of the conical cylinder (8). A one-way valve (10) is installed at the top of the inside of the inlet cylinder (2) and is located below the inlet (3). An adapter (11) is installed inside the inlet cylinder (2) below the one-way valve (10) and is provided with a filter outlet (12) at the top of the adapter (11).

2. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The one-way valve (10) includes a housing (14), which is fixedly installed inside the water inlet cylinder (2). An annular plate (15) is integrally provided at the top of the housing (14), and a positioning cylinder (16) is installed inside the annular plate (15). A sliding rod (17) is slidably connected inside the positioning cylinder (16). A sealing plate (18) is fixedly connected to the outside of the sliding rod (17). An annular protrusion (20) is integrally provided at the bottom of the inner wall of the housing (14), and a limiting cylinder (21) is provided inside the annular protrusion (20). The bottom end of the sliding rod (17) slides through the limiting cylinder (21). A spring (19) is sleeved on the outside of the sliding rod (17) between the sealing plate (18) and the limiting cylinder (21), and the two ends of the spring (19) are fixedly connected to the limiting cylinder (21) and the sealing plate (18) respectively.

3. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 2, characterized in that: The bottom of the slide bar (17) is provided with a limiting block, the diameter of the sealing plate (18) is greater than the diameter of the central hole of the annular plate (15), and the diameter of the sealing plate (18) is smaller than the diameter of the central hole of the annular protrusion (20).

4. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The adapter (11) is snapped into the inside of the water inlet cylinder (2). An annular sealing ring is embedded in the outer side of the adapter (11) at equal intervals, and the annular sealing ring is tightly fitted to the inner wall of the water inlet cylinder (2).

5. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The water sample storage bag (1) has a scale line (6) on one side and a label (7) on the other side.

6. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The top of the water sample storage bag (1) is provided with a pull ring (22), and the pull ring (22) is a metal ring.

7. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The adapter (11) has a limiting groove on its top, the filter port (12) is embedded in the limiting groove, and a sterile filter membrane cartridge (24) is provided in the adapter (11) below the filter port (12).

8. The hand-operated, press-type integrated device for rapid water sample collection and storage according to claim 1, characterized in that: The adapter (11) has convex plates (13) symmetrically arranged at the bottom outside the sterile filter membrane cartridge (24).

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