Self-suction anti-blocking water sampler

Abstract

The utility model provides a self-suction type anti-blocking water sampler. The self-suction type anti-blocking water sampler comprises a water suction barrel and a piston, the water absorption barrel is provided with an input end and an output end; the piston is provided with a first check valve, is arranged in the water suction cylinder in a sliding and sealing manner, and is used for forming negative pressure in the water suction cylinder when being pulled towards one side close to the output end; the flow direction of the first check valve is from the side close to the input end to the side close to the output end. The self-suction anti-blocking water sampler provided by the utility model can solve the problems that water sampling is difficult, the water suction port is blocked and the composition characteristics of a sampled water sample are changed.

Description

Technical Field

[0001] The present application relates to the field of water quality testing, and in particular to a self-priming anti-blocking water sampler. Background Art

[0002] Water quality monitoring is the process of qualitative and quantitative analysis of the physical, chemical, biological and other properties of water. Its purpose is to assess water quality, monitor changes in water quality, determine the degree of pollution, guide water treatment processes and ensure the safe use of water.

[0003] At present, water quality monitoring usually uses water quality monitoring samplers to take water samples. In the prior art, water quality monitoring samplers are mostly bucket samplers made of materials such as polyethylene, polytetrafluoroethylene, and polyurethane. Such samplers are bulky and inconvenient to carry. For sampling points with small spaces and monitoring well covers that cannot be opened, bucket samplers can hardly obtain water samples, and the bucket fiber rope is easy to break, causing the bucket to fall. The fiber rope is also easy to hook and entangle on objects such as railings, making sampling difficult. For existing negative pressure samplers, particulate matter will block the water intake port and change the composition characteristics of the water sample. Utility Model Content

[0004] In response to the above problems, the present application provides a self-priming anti-clogging water sampler, which can solve the problems of difficulty in water sampling, blockage of the water suction port and changes in the composition characteristics of the water sample after sampling.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] The present application provides a self-priming anti-blocking water sampler, comprising: a water absorbing cylinder, a piston;

[0007] The water absorbing cylinder has an input end and an output end;

[0008] The piston has a first check valve and a sliding seal disposed inside the water absorbing cylinder, and is used to form a negative pressure inside the water absorbing cylinder when the piston is pulled toward the side close to the output end;

[0009] The flow direction of the first check valve is from the side close to the input end to the side close to the output end.

[0010] In a possible implementation, the self-priming anti-blocking water sampler further includes: a push rod; the push rod is passed through the water absorption cylinder, one end of the push rod is fixedly connected to the piston, and the other end extends out of the water absorption cylinder.

[0011] In a possible implementation, one end of the push rod extending out of the water absorption cylinder has a handle.

[0012] In a possible implementation, the input end has a second check valve, and the flow direction of the second check valve is from the outside of the water absorption cylinder to the inside of the water absorption cylinder.

[0013] In a possible implementation, the output end has a third check valve, and the flow direction of the third check valve is from the inside of the water absorption cylinder to the outside of the water absorption cylinder.

[0014] In a possible implementation, the first check valve is embedded in the piston and is connected to the spaces on both sides of the piston inside the water absorption cylinder in a one-way manner.

[0015] In a possible implementation, the input end further has a water inlet pipe for extending into the water body to be sampled.

[0016] In a possible implementation, the output end further has a water outlet pipe for connecting to a water body detection device.

[0017] The self-priming anti-blocking water sample sampler provided in this application can solve the problem of particulate matter in the water sample clogging the water suction port and changing the composition characteristics of the water sample, and it is easy to carry. After repeated use, various parts of the cylinder will be sticky with water dirt. At this time, you only need to remove the internal threaded covers at the front and rear ends to clean the piston and the inner wall of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 A schematic diagram of the structure of a self-priming anti-blocking water sampler provided in an embodiment of the present application;

[0020] Figure 2 A schematic structural diagram of a self-priming anti-blocking water sampler piston provided in an embodiment of the present application.

[0021] Figure numerals: 1-water absorption cylinder; 2-piston, 21-connecting part; 3-first check valve; 4-push rod; 5-handle; 6-input end; 7-output end; 8-water inlet pipe; 9-water outlet pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0024] Example 1

[0025] Figure 1-2 A self-priming anti-blocking water sampler provided in the embodiment of the present application comprises: a water absorbing cylinder 1, a piston 2;

[0026] The water absorption cylinder 1 has an input end 6 and an output end 7;

[0027] The piston 2 has a first check valve 3, which is slidingly sealed and arranged inside the water-absorbing cylinder 1, and is used to form a negative pressure inside the water-absorbing cylinder 1 when it is pulled toward the side close to the output end 7;

[0028] The flow direction of the first check valve 3 is from the side close to the input end 6 to the side close to the output end 7. With this implementation, the opening gap of the first check valve 3 is relatively large, and large particles in the water body can pass through the first check valve 3 without causing blockage.

[0029] Wherein, the first check valve 3 is in a closed state when the piston 2 is pulled toward the side close to the output end 7, and the water sample is sucked into the water absorption cylinder 1 through the input end 6;

[0030] When the piston 2 moves back toward the side close to the input end 6 , it is in an open state, and the water in the space inside the water absorption cylinder 1 close to the input end 6 flows to the space inside the water absorption cylinder 1 close to the output end 7 .

[0031] Optionally, the piston is made of stainless steel and has a sealing ring on the side, which fits tightly against the side wall of the water-absorbing cylinder body 1.

[0032] In a possible implementation, the self-priming anti-blocking water sampler further includes: a push rod 4; the push rod 4 is passed through the water absorption cylinder 1, one end of the push rod 4 is fixedly connected to the piston 2, and the other end extends out of the water absorption cylinder 1.

[0033] Optionally, the push rod 4 is fixedly connected to the connecting portion 21 of the piston 2, driving the piston 2 to push and pull in the water absorption cylinder body 1 from the top surface to the bottom surface.

[0034] Optionally, the push rod 4 is slidably disposed on the water absorbing cylinder body 1 .

[0035] In a possible implementation, the end of the push rod 4 extending out of the water absorption cylinder 1 has a handle 5. With this implementation, it is convenient for operators to push and pull the piston 2.

[0036] In a possible implementation manner, the input end 6 has a second check valve, and the flow direction of the second check valve is from the outside of the water absorption cylinder 1 to the inside of the water absorption cylinder 1.

[0037] When the piston 2 is pushed toward the input end 6 of the water absorption cylinder 1 , the second check valve is in a closed state, and the water sample will not overflow from the input end 6 .

[0038] In a possible implementation manner, the output end 7 has a third check valve, and the flow direction of the third check valve is from the inside of the water absorption cylinder 1 to the outside of the water absorption cylinder 1.

[0039] When the piston 2 is pulled toward the output end 7 of the water absorption cylinder 1 , the third check valve is in a closed state, and the water sample will not enter the cylinder from the output end 7 .

[0040] In a possible implementation manner, the first check valve 3 is embedded in the piston 2 to unidirectionally connect the spaces on both sides of the piston 2 inside the water absorption cylinder 1 .

[0041] In a possible implementation manner, the input end 6 further has a water inlet pipe 8 for extending into the water body to be sampled.

[0042] Optionally, the input end 6 has an outer diameter of 8 mm and is connected to a water inlet pipe 8 with an inner diameter of 8 mm.

[0043] In a possible implementation manner, the output end 7 further has a water outlet pipe 9 for connecting to a water body detection device.

[0044] Optionally, the output end 7 has an outer diameter of 8 mm and is connected to a water outlet pipe 9 with an inner diameter of 8 mm.

[0045] Working principle:

[0046] By pulling the piston 2 toward the top of the sampler through the handle 5, the first check valve 3 and the third check valve are closed, and the second check valve is opened, and the water to be tested enters the space on the side of the water absorption cylinder 1 near the input end 6;

[0047] By pushing the piston 2 toward the bottom of the sampler through the handle 5, the first check valve 3 and the third check valve are opened, and the second check valve is closed and opened. The water body to be measured containing large particles enters the space on the side of the water absorption cylinder body 1 near the input end 6 through the first check valve 3 into the space on the side of the water absorption cylinder body 1 near the output end 7. No blockage occurs, and the composition characteristics of the water sample will not be changed due to the installation of a filtering device or blockage by large particles. The water body then flows to the measuring device through the third check valve.

[0048] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and methods can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.

[0049] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. A self-priming anti-blocking water sampler, characterized in that: include: Water absorption cylinder (1), piston (2); The water absorption cylinder (1) has an input end (6) and an output end (7); The piston (2) has a first check valve (3) which is slidingly sealed and arranged inside the water absorption cylinder (1) and is used to form a negative pressure inside the water absorption cylinder (1) when the piston (2) is pulled toward the side close to the output end (7); The flow direction of the first check valve (3) is from the side close to the input end (6) to the side close to the output end (7).

2. The self-priming anti-blocking water sampler according to claim 1 is characterized in that: Also includes: A push rod (4); the push rod (4) is inserted into the water absorbing cylinder (1), one end of the push rod is fixedly connected to the piston (2), and the other end extends out of the water absorbing cylinder (1).

3. The self-priming anti-blocking water sampler according to claim 2 is characterized in that: One end of the push rod (4) extending out of the water-absorbing cylinder body (1) is provided with a handle (5).

4. The self-priming anti-blocking water sampler according to claim 1 is characterized in that: The input end (6) has a second check valve, and the flow direction of the second check valve is from the outside of the water absorption cylinder (1) to the inside of the water absorption cylinder (1).

5. The self-priming anti-blocking water sampler according to claim 1 is characterized in that: The output end (7) has a third check valve, and the flow direction of the third check valve is from the inside of the water absorption cylinder (1) to the outside of the water absorption cylinder (1).

6. The self-priming anti-blocking water sampler according to claim 1 is characterized in that: The first check valve (3) is embedded in the piston (2) and is connected to the spaces on both sides of the piston (2) inside the water absorption cylinder (1) in a one-way manner.

7. The self-priming anti-blocking water sampler according to claim 1 is characterized in that: The input end (6) also has a water inlet pipe (8) for extending into the water body to be sampled.

8. The self-priming anti-blocking water sampler according to claim 1, characterized in that: The output end (7) also has a water outlet pipe (9) for connecting to a water body detection device.

Images