Siphon sampling device

Abstract

According to the scheme, the siphon sampling device comprises a standing barrel, a containing cavity and a height limiting ring arranged in the containing cavity are arranged in the standing barrel, and the vertical moving stroke of a floating plate is limited through the limiting ring; the floating plate is arranged in the containing cavity, a water inlet connector is arranged at the bottom, and a spring pipe communicated with the water inlet connector is arranged at the top, so that the water inlet connector can move up and down along with the floating plate; one end of the siphon pipe is communicated with the spring pipe, and the other end of the siphon pipe is communicated with the sampling bottle; and one or more sampling bottles are provided. The standing barrel is provided with a barrel cover sensor used for detecting whether a barrel cover of the standing barrel is opened or not, and the sampling bottle is arranged in the sample chamber; and the sample chamber is provided with a sampling bottle detection sensor for detecting whether the sampling bottle exists or not and a sample chamber door detection sensor for detecting whether a door of the sample chamber is opened or not. According to the application, the uniformity and traceability of siphon sampling can be ensured.

Description

Technical Field

[0001] This application relates to the field of environmental sample detection, and particularly to a siphon sampling device. Background Art

[0002] In environmental monitoring and scientific research, sample collection is the prerequisite for obtaining accurate analysis data. However, traditional samplers have obvious defects during operation. Especially for sampling non-homogeneous environmental media such as water quality or soil, it is often difficult to ensure the representativeness. Specifically, existing samplers are prone to being interfered by external factors during sampling, such as water flow disturbance or sediment turnover, resulting in the sampled samples may tend to be the more turbid part in the lower layer, rather than a uniform mixture of the entire sampling area. This sampling method not only affects the representativeness of the samples, but also may lead to deviations in subsequent analysis results, thus affecting the accuracy of scientific decision-making.

[0003] In addition, traditional sampling methods lack effective data recording and traceability mechanisms. Against the backdrop of increasingly strict current environmental protection regulations, ensuring the authenticity and integrity of sampling data has become particularly important. However, most existing sampling equipment does not have the function of real-time recording of sampling location, time, and sampling process, which poses great challenges for data verification and traceability. Especially in cases involving environmental disputes or legal proceedings, the lack of reliable sampling records will directly affect the validity of evidence and increase the difficulty of handling related issues. Summary of the Invention

[0004] The purpose of this application is to address the above problems existing in the prior art and provide a siphon sampling device.

[0005] To achieve the first object of the above application, the following technical solutions are adopted in this application: A siphon sampling device includes:

[0006] A static bucket, which is provided with a cavity and a height limiting ring arranged in the cavity, and the up and down movement stroke of the floating plate is limited by the limiting ring;

[0007] A floating plate, which is arranged in the cavity, with a water inlet joint at the bottom and a spring tube communicating with the water inlet joint at the top, so that the water inlet joint can move up and down with the floating plate;

[0008] A siphon tube, which is located outside the static bucket, one end is communicated with the spring tube, and the other end is communicated with a sampling bottle;

[0009] One or more sampling bottles.

[0010] Furthermore, anti-tipping limiting strips for preventing the floating plate from tipping over and providing a guiding function are also arranged in the cavity.

[0011] Furthermore, the length of the water inlet connector is greater than 5 cm, ensuring that the inlet of the water inlet connector is always at least 5 cm below the liquid level.

[0012] Furthermore, a quick-release joint is provided at one end of the bourdon tube away from the water inlet connector, and this quick-release joint is located on the top side wall of the static bucket.

[0013] Furthermore, a liquid level sensor is provided in the cavity.

[0014] Furthermore, a solenoid valve is provided between the siphon tube and the sampling bottle, and a flow meter is provided between the solenoid valve and the sampling bottle.

[0015] Furthermore, two upper and lower limit rings for limiting the stroke of the floating plate are also provided in the cavity, including an upper limit ring and a lower limit ring.

[0016] Furthermore, a liquid filter is provided at the top of the cavity, and this liquid filter is located above the bourdon tube.

[0017] To achieve the second objective of the above application, the present application adopts the following technical solutions. A siphon sampling device further includes a wireless communication module and a positioning module. A lid sensor for detecting whether the lid of the static bucket is opened is provided on the static bucket. The sampling bottle is placed in the sample chamber, and a sampling bottle detection sensor for detecting the presence of the sampling bottle and a sample chamber door detection sensor for detecting whether the door of the sample chamber is opened are provided on this sample chamber.

[0018] Furthermore, an infrared sensor and a camera are also included.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. Enhanced sampling uniformity: By setting the cooperation of the height limit ring and the floating plate, combined with the specific design of the water inlet connector (length greater than 5 cm), it is ensured that the sample is always drawn from the stable layer of the sample during the sampling process, avoiding the influence of the lower turbid sample, and improving the uniformity and representativeness of the sampling result.

[0021] 2. Intelligent control and monitoring: Components such as a liquid level sensor, a solenoid valve, and a flow meter are introduced to realize the automatic control and accurate measurement of the sampling process, ensuring the accuracy of the sampling volume. In addition, the setting of the liquid filter effectively filters impurities and further improves the sample quality.

[0022] 3. Real-time monitoring and data traceability: The integrated wireless communication module, positioning module, and various sensors (lid sensor, sampling bottle detection sensor, sample chamber door detection sensor) jointly construct a comprehensive monitoring system, which can record and transmit key information such as the sampling location, time, and process in real time, ensuring the integrity and authenticity of the data, and also facilitating the subsequent data traceability and auditing.

[0023] 4. Enhanced Safety and Anti-Counterfeiting: By adding infrared sensors and cameras, the system's security is enhanced, effectively preventing illegal operations and data tampering, and ensuring the transparency and fairness of the sampling process.

[0024] 5. Improved Operational Convenience: The design of quick-release joints greatly simplifies the assembly and disassembly process of the sampling device, improving the efficiency and flexibility of on-site operations; the setting of the sample chamber provides a safe storage space for sampling bottles, facilitating management and transportation. Description of the Drawings

[0025] Figure 1 is the structural schematic diagram of the present application;

[0026] Figure 2 is the schematic diagram of opening the sample chamber door of the present application;

[0027] Figure 3 is the structural principle diagram of the present application;

[0028] Figure 4 is the structural schematic diagram of the floating plate;

[0029] Figure 5 is the schematic diagram of the communication method of the present application.

[0030] In the figures, 1. Main body of the housing; 2. Sample chamber; 3. Static component; 4. Detection system; 5. Water inlet joint; 6. Siphon; 7. Solenoid valve; 8. Sample water; 11. Adjusting feet; 12. Level gauge; 13. Handheld handle; 21. Sampling bottle; 22. Sample chamber door lock; 23. Sample chamber door; 31. Static barrel; 32. Static barrel cover; 311. Upper limit ring; 312. Lower limit ring; 313. Filter limit ring; 314. Quick-release joint; 315. Anti-tipping limit strip; 33. Static barrel cover lock; 35. Floating plate; 36. Spring tube; 41. Infrared sensor; 42. Camera; 43. Barrel cover sensor; 44. Sample chamber door detection sensor; 45. Liquid level sensor; 46. Flowmeter; 47. Sampling bottle detection sensor. Detailed Embodiments

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0032] Those skilled in the art should understand that in the disclosure of this application, the orientation or positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this application.

[0033] As Figures 1-4 shown, this siphon sampling device mainly consists of a housing main body 1, a sample chamber 2, a static component 3, and a detection system 4.

[0034] Among them, the sample chamber 2 includes a sampling bottle 21 for collecting samples, a sample chamber door 23, and a sample chamber door lock 22 to prevent abnormal opening. The static component 3 includes a static barrel 31 (with an internal cavity), internal pipelines, a static barrel cover 32, and a static barrel cover lock 33 to prevent abnormal opening. The detection system 4 includes various sensors such as an infrared sensor 41, a camera 42, a barrel cover sensor 43, and a sample chamber door detection sensor 44. Other auxiliary structures include adjusting feet 11 for adjusting the horizontal state of the instrument to ensure that the instrument can be placed horizontally and work properly during field use, and a level 12 for checking the horizontal state of the instrument. A handle 13 facilitates the handling of the instrument and improves the convenience of use.

[0035] In this embodiment, this solution sets a floating siphon port. The floating plate 35 drives the water inlet joint 5 to move, so that the siphon port of the water inlet joint 5 is always at a specific distance below the liquid level, ensuring uniform sampling. The working process is as follows:

[0036] The static barrel 31 is provided with a floating plate 35 that can float on the liquid surface and a spring tube 36 that can be freely extended and retracted. The floating plate 35 is limited between two limit rings (upper limit ring 311, lower limit ring 312). When the sampling liquid is poured into the static barrel 31, the floating plate 35 will rise accordingly, and the spring tube 36 will shrink. When the floating plate 35 floats to the upper limit, it stops floating. If liquid continues to be added, the liquid level sensor 45 is triggered, and the instrument buzzes to remind the user to stop adding liquid. The liquid level sensor 45 is set at a position higher than the highest point of the internal pipeline. Therefore, if the solenoid valve 7 is opened at this time, siphoning can be automatically established and automatic sampling can be performed. During the siphoning process, the floating plate 35 automatically descends with the liquid level to ensure that the siphon port is always located not less than 5 cm below the liquid surface. There is a notch on the edge of the floating plate 35. The notch cooperates with the guide rail (anti-turnover limit strip 315) of the static barrel 31 to prevent the floating plate 35 from turning over. A filter limiting ring 313 is installed above the upper limit ring 311, and a liquid filter is installed on the filter limiting ring 313 to filter sample impurities. The static barrel 31 is a quick-detachable structure. When disassembling, the quick fixing buckle and the siphon tube 6 quick-detachable joint 314 are opened to facilitate rapid flushing with the on-site water sample after changing the sampling location.

[0037] The cooperation between the anti-turnover limit strip 315 and the floating plate 35 is not limited to the notch cooperation structure.

[0038] Among them, the ball valve at the bottom of the standing barrel 31 is closed, and it is necessary to wait for a period of time after adding the liquid. The standing waiting time can be set through the mobile APP and automatically synchronized to the instrument. After the standing time is completed, the instrument automatically opens the solenoid valve 7 and starts siphoning samples. A flow meter 46 is set at the sampling outlet, which can automatically detect the sampling volume. The sampling volume can also be set through the mobile APP and automatically synchronized with the instrument. After the sampling volume reaches the set value, the solenoid valve 7 is automatically closed to complete the sampling. In this scheme, multiple sampling bottles 21 can be sampled at the same time. A sampling bottle detection sensor 47 is set above each sampling bottle 21. The instrument can automatically identify whether a sampling bottle 21 is placed under the channel, and then automatically judge whether it is necessary to open the channel solenoid valve 7 for sampling during the standing stage.

[0039] In this embodiment, if Figure 5 As shown, in order to achieve traceable monitoring, on the basis of the basic siphon sampling function, a switch detection mechanism (barrel cover sensor 43) of the sampling bottle 21 and the water sample standing barrel 31 is added and real-time recording is performed. The instrument's built-in GPS module automatically records the sampling point information and uploads it to the background server for storage. The mobile terminal App takes photos of the sampling site for preservation, ensuring that the entire sampling process is complete and effective, and facilitating the tracing of the sampling process.

[0040] Specifically, for the sampling process control, detection sensors (lid sensor 43 and sample chamber door detection sensor 44, which can be existing photoelectric sensors) are installed on both the static bucket lid 32 and the sample chamber door 23. Sampling cannot be started when the sample chamber door 23 and the static bucket lid 32 are not locked. If the static bucket lid 32 and / or the sample chamber door 23 are opened during sampling, the instrument will issue an alarm, automatically record the opening time and location, and upload them to the server. Users can view them through the mini-program. The instrument is built-in with a GPS module (positioning module), which will automatically record the location, longitude, and latitude information of each sampling location and synchronize it to the server for storage.

[0041] This instrument is for outdoor use without monitoring. In terms of safety, it is ensured by the infrared sensor 41 and the camera 42. The infrared sensor 41 is set in the front of the instrument. When the infrared sensor 41 detects a pedestrian approaching, it will trigger an alarm to remind non-professionals not to approach and deliberately damage. If the infrared signal system is continuously triggered, the camera 42 will be automatically started to capture pictures, record the time and location, and upload them to the server. Users can view them in the APP. The specific process is as follows:

[0042]

Process Traceability Guarantee

[0043] 1) After power-on, record the GPS information;

[0044] 2) The time when the lid sensor 43 detects that the lid is closed;

[0045] 3) The time when the sample chamber door 23 sensor detects that the door is closed;

[0046] 4) When the static start button is pressed, the instrument records the static start time;

[0047] 5) The time when siphon starts after the static time ends;

[0048] 6) The final volume of the siphon;

[0049] 7) The time when the siphon ends. Users can export the above information through the APP in an unmodifiable format to ensure the traceability and compliance of the detection process.

[0050]

Record Process Nonconformities

[0051]

Instrument Loss Traceability

[0052] 1) The instrument buzzer emits an alarm sound message to warn people not to approach.

[0053] 2) The camera 42 starts capturing images, takes pictures of people and uploads them.

[0054] 3) Upload the time when people approach and the captured pictures to the server through the 4G module and push them to the user's mobile phone.

[0055] The parts not described in detail in this application are prior art, so this application does not describe them in detail. In particular, for some sensors, the sensors used in this application are all mature products that can be purchased on the market, so their structures and principles will not be elaborated further.

[0056] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be understood as a limitation on the quantity.

[0057] Although terms such as the housing main body 1, the sample chamber 2, the static component 3, the detection system 4, the water inlet joint 5, the siphon 6, the solenoid valve 7, the sample water 8, the adjusting feet 11, the level gauge 12, the handgrip 13, the sampling bottle 21, the sample chamber door lock 22, the sample chamber door 23, the static barrel 31, the static barrel cover 32, the upper limit ring 311, the lower limit ring 312, the filter limit ring 313, the quick-release joint 314, the anti-tipping limit strip 315, the static barrel cover lock 33, the floating plate 35, the bellows 36, the infrared sensor 41, the camera 42, the barrel cover sensor 43, the sample chamber door detection sensor 44, the liquid level sensor 45, the flow meter 46, the sampling bottle detection sensor 47 are used more frequently in this application, it does not exclude the possibility of using other terms. Using these terms is only to more conveniently describe and explain the essence of this application; interpreting them as any additional limitation is contrary to the spirit of this application.

[0058] This application is not limited to the above best implementation mode. Anyone can obtain other various forms of products under the inspiration of this application. However, no matter what changes are made in its shape or structure, as long as it has a technical solution that is the same as or similar to this application, it falls within the protection scope of this application.

Claims

1. A siphon sampling device, characterized in that: include: The static barrel is provided with a chamber and a height limiting ring arranged in the chamber, and the upper and lower movement stroke of the floating plate is limited by the limiting ring; A floating plate is arranged in the cavity, with a water inlet joint at the bottom and a spring tube in communication with the water inlet joint at the top, so that the water inlet joint can move up and down with the floating plate; A siphon tube is located outside the static barrel, one end of which is connected to the spring tube and the other end of which is connected to the sampling bottle; Sampling bottles, one or more in number.

2. A siphon sampling device according to claim 1, characterized in that: The cavity is also provided with an anti-overturning limit strip for preventing the floating plate from overturning and providing a guiding function.

3. A siphon sampling device according to claim 1, characterized in that: The length of the water inlet joint is greater than 5 cm.

4. A siphon sampling device according to claim 1, characterized in that: A section of the spring tube away from the water inlet joint is provided with a quick-release joint, and the quick-release joint is located on the top side wall of the static barrel.

5. A siphon sampling device according to claim 1, characterized in that: A liquid level sensor is arranged in the cavity.

6. A siphon sampling device according to claim 1, characterized in that: A solenoid valve is arranged between the siphon tube and the sampling bottle, and a flow meter is arranged between the solenoid valve and the sampling bottle.

7. A siphon sampling device according to claim 1, characterized in that: The cavity is also provided with upper and lower limiting rings for limiting the travel of the floating plate, including an upper limiting ring and a lower limiting ring.

8. The siphon sampling device according to claim 1, characterized in that: A liquid filter is also provided on the top of the cavity, and the liquid filter is located above the spring tube.

9. A siphon sampling device according to any one of claims 1 to 8, characterized in that: It also includes a wireless communication module and a positioning module. The static barrel is provided with a barrel cover sensor for detecting whether the barrel cover of the static barrel is opened. The sampling bottle is placed in the sample chamber, and the sample chamber is provided with a sampling bottle detection sensor for detecting the presence or absence of the sampling bottle and a sample chamber door detection sensor for detecting whether the door of the sample chamber is opened.

10. A siphon sampling device according to claim 9, characterized in that: Also includes infrared sensors and cameras.

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