Sewage sampling bottle for narcotic drug monitoring and capable of assisting sampling

Abstract

The utility model belongs to the technical field of sewage sampling, and provides a sewage sampling bottle for narcotic drug monitoring, which aims at solving the problem that time and labor are wasted when impurities in sewage are removed through manual centrifugation or filtration at present, and comprises a sampling bottle body, a sampling bottle cover, a sampling bottle cover and a sampling bottle cover, and the interior of the sampling bottle body is divided into an upper water collecting cavity and a lower high-pressure air cavity through a partition plate; the sleeve is connected to the upper end of the sampling bottle body; the sealing piston assembly is arranged between the sleeve and the partition plate in a penetrating mode, and the bottle cap is connected to the upper end of the sleeve; and the filter layer is arranged in the bottle cap. The partition plate is arranged in the sampling bottle body to divide the sampling bottle body into the water collecting cavity at the upper part and the high-pressure gas cavity at the lower part, the water collecting cavity has the function of storing a sewage sample, and the high-pressure gas cavity is used for storing high-pressure nitrogen and providing pressure for discharging sewage; the filtering layer in the bottle cap is used for filtering the sampled sewage, and the sealing piston assembly is used for controlling the discharge of high-pressure nitrogen and the discharge of the sewage.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage sampling, and specifically relates to a sewage sampling bottle for drug monitoring and auxiliary sampling. Background Technology

[0002] Drug monitoring in sewage is to use sewage epidemiological methods to monitor drug conditions. Regular testing of sewage that has not been biochemically treated, such as sewage treatment plants, pumping stations, crowd gathering points, and surface water, is performed to determine the concentrations of drug precursors, metabolites, and population markers in sewage. Based on the excretion rate of drug precursors or metabolites and combined with sewage flow, the amount and scale of drug abuse in the monitoring area can be inferred.

[0003] When analyzing sewage, it is necessary to sample the sewage. The existing patent publication number is "CN 218916946 U", and the name is "Sampling Device for Sewage Treatment", which includes a sleeve and a sampling mechanism. The sleeve is provided with a sampling mechanism for sewage sampling. The sampling mechanism includes a push rod, a supporting ring, a spring, an end ring, a grip, a bottom ring and a rubber ring. A sleeve is vertically inserted into the sleeve and a supporting ring connected to the spring is installed on the outer periphery of the sleeve. A spring is arranged between the top of the supporting ring and the top of the inner wall of the sleeve. A bottom ring that fixes the collection assembly and extends to the outside of the sleeve is installed at the bottom end of the push rod. After reaching the appropriate sampling depth, the push rod is pressed, and the bottom ring drives the sampling bottle downward so that the sewage is poured into the sampling bottle to complete the collection. Then, the push rod is reset to collect the sampling bottle into the sleeve and take it out as a whole to obtain the sewage sample of the required depth, which improves the flexibility of the sampling depth.

[0004] However, when analyzing the drug monitoring in sewage, the sewage needs to be pre-treated, and the first step of the pre-treatment is to remove the suspended particles in the sewage. Obviously, although the device has achieved sampling, it cannot complete the treatment after sampling. The current conventional treatment method is to remove impurities in the sewage by manual centrifugation or filtration, which is time-consuming and labor-intensive. Contents of utility model

[0005] The purpose of the utility model is to provide a sewage sampling bottle for drug monitoring with auxiliary sampling, so as to overcome the technical problem that the existing sampling bottle cannot treat the sewage after sampling. By setting a filter layer and a sealing piston assembly, the sampled sewage can be directly treated, which greatly improves the efficiency of sampling and treatment.

[0006] In order to achieve the above technical effects, the technical ideas adopted by the utility model are as follows:

[0007] The utility model is provided with a sampling bottle body, and a sleeve and a bottle cap are connected to the upper end of the sampling bottle body. A partition is arranged in the sampling bottle body, dividing the sampling bottle body into a water collection cavity in the upper part and a high-pressure gas cavity in the lower part. The water collection cavity is used for storing sewage samples, and the high-pressure gas cavity stores high-pressure nitrogen to provide pressure for discharging sewage; the filter layer in the bottle cap realizes filtering of the sampled sewage, and the sealing piston assembly has the functions of controlling the discharge of high-pressure nitrogen and controlling the discharge of sewage.

[0008] Based on the above technical idea, the structure of the utility model is as follows:

[0009] A sewage sampling bottle for drug monitoring with auxiliary sampling, comprising:

[0010] A sampling bottle body, which is internally divided into a water collection cavity and a high-pressure gas cavity by a partition;

[0011] A sleeve, connected to the upper end of the sampling bottle body;

[0012] A sealing piston assembly, penetrating and arranged between the sleeve and the partition;

[0013] A bottle cap, connected to the upper end of the sleeve, and internally provided with a filter layer.

[0014] Preferably, the sealing piston assembly includes:

[0015] A first sealing member, arranged between the bottom surface of the sleeve and the bottle cap;

[0016] A second sealing member, arranged in the high-pressure gas cavity for sealing the partition;

[0017] A connecting rod, one end of which is arranged at the upper end of the second sealing member, and the other end passes through the first sealing member and abuts against the lower end surface of the filter layer.

[0018] Preferably, the first sealing member includes:

[0019] A first sealing piston, inserted into the bottom surface of the sleeve;

[0020] A first spring, one end of which is connected to the upper end surface of the first sealing piston, and the other end is arranged at the lower end surface of the filter layer.

[0021] Preferably, the second sealing member includes:

[0022] A second sealing piston, inserted into the partition;

[0023] A second spring, one end of which is connected to the lower end surface of the second sealing piston, and the other end is connected to the inner bottom surface of the sampling bottle body.

[0024] Preferably, both the first sealing piston and the second sealing piston are rubber plugs with a conical structure.

[0025] Preferably, the filter layer includes a filter membrane, a filter screen, and a plastic grid arranged in sequence from top to bottom.

[0026] Preferably, a diversion port is provided at the center of the upper end surface of the bottle cap.

[0027] Preferably, an air inlet is provided at the bottom surface of the sampling bottle body.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0029] 1. A partition is provided in the inner cavity of the sampling bottle body. The partition divides the sampling bottle body into two layers. The upper layer is a water collection cavity, which has the function of storing sewage samples. The lower layer is a high-pressure gas cavity, which has the function of storing high-pressure nitrogen and providing pressure for discharging sewage. The second sealing piston and the second spring have the function of controlling the discharge of high-pressure nitrogen. An air inlet is provided at the bottom of the sampling bottle body, and the air inlet has the function of repeatedly filling high-pressure nitrogen.

[0030] 2. The upper end of the sampling bottle body is threadedly connected with a sleeve. The sleeve has the functions of sealing the sampling bottle body and temporarily storing water. The bottom surface of the sleeve is movably inserted with a first sealing piston. The upper end of the first sealing piston is connected with a first spring, and a connecting rod passes through the middle. The first sealing piston and the first spring have the function of controlling the discharge of sewage, and the connecting rod has the function of linkage control of the first sealing piston and the second sealing piston.

[0031] 3. The upper end of the sleeve is threadedly connected with a bottle cap. The bottle cap has the functions of sealing the sleeve, placing the filter layer, and discharging water. A filter layer is provided inside the bottle cap and is connected to the diversion port. The diversion port has the function of facilitating the collection of sewage. The top layer of the filter layer is a filter membrane, which has the function of filtering tiny impurities in the sewage. The bottom layer is a rigid plastic grid, and in the middle is a filter screen. The filter screen has the function of filtering larger impurities in the sewage, and the rigid plastic grid has the function of supporting the filter screen. Description of the Drawings

[0032] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0033] In the drawings:

[0034] Figure 1 is a schematic structural diagram of the sewage sampling bottle of the present utility model;

[0035] Figure 2 is a schematic structural diagram of the sampling bottle body of the present utility model;

[0036] Figure 3 is a schematic sectional structural diagram of the sampling bottle body and the sleeve of the present utility model;

[0037] Figure 4 Schematic cross-sectional structure diagram of the bottle cap of the present utility model;

[0038] Figure 5 is Figure 4 The enlarged view of part A in

[0039] Wherein, 1. Sampling bottle body, 2. Sleeve, 3. Bottle cap, 4. Filter layer, 41. Filter membrane, 42. Filter screen, 43. Plastic grid, 5. Partition board, 6. Water collecting cavity, 7. High-pressure air cavity, 8. First sealing piston, 9. First spring, 10. Second sealing piston, 11. Second spring, 12. Connecting rod, 13. First rubber ring, 14. Second rubber ring, 15. Diversion port, 16. Inflation port, 17. Sealing ring, 18. Limit post. Specific embodiments

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation of the present utility model.

[0041] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] The following combines Figures 1 - 5 The preferred embodiments of the present utility model are described, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0043] The principle of monitoring drug conditions in sewage is that after a person takes drugs, their metabolites will enter domestic sewage with urine. Therefore, as long as samples are taken at the inlet of the sewage treatment plant, the concentration of drugs in it is measured, and then combined with the sewage flow and the drug excretion rate, the consumption of a certain drug in the service area of the sewage treatment plant can be calculated. Then, according to the service population of the sewage treatment plant, the per capita consumption of drugs in this service area can be estimated.

[0044] Therefore, sewage in the sewage treatment plant is sampled using a sewage sampling bottle, and then the collected sewage is processed to remove impurities such as suspended particulate matter. Subsequently, the next step is to conduct instrument detection and analysis to achieve the monitoring of drugs in the sewage.

[0045] Based on the above findings, the present application provides a sewage sampling bottle for drug monitoring with auxiliary sampling, including a sampling bottle body 1. A sleeve 2 and a bottle cap 3 are sequentially connected to the upper end of the sampling bottle body 1. A filter layer 4 provided inside the bottle cap 3 filters impurities such as suspended particulate matter, and the sampling bottle body 1 completes the collection.

[0046] Example 1:

[0047] A sewage sampling bottle for drug monitoring with auxiliary sampling, including:

[0048] A sampling bottle body 1. An external thread is provided at the upper end opening of the sampling bottle body 1. A horizontal partition 5 is provided inside the sampling bottle body 1 by integral molding or hot melt adhesive bonding. The partition 5 divides the inner cavity of the sampling bottle body 1 into two layers. The upper part is a water collection cavity 6, and the lower part is a high-pressure gas cavity 7.

[0049] Furthermore, a through hole is provided at the center of the partition 5.

[0050] The water collection cavity 6 functions to store sewage samples, and the high-pressure gas cavity 7 stores high-pressure nitrogen gas to provide pressure for discharging sewage.

[0051] A sleeve 2. The sleeve 2 has a cylindrical structure. An internal thread that matches the external thread of the sampling bottle body 1 is provided on the inner wall at the lower end of the sleeve 2, thereby achieving the threaded connection between the sleeve 2 and the sampling bottle body 1.

[0052] Among them, a horizontal bottom surface is also provided at the inner lower part of the sleeve 2 by integral molding or hot melt adhesive bonding, and a hole is provided at the center of the bottom surface.

[0053] A sealing piston assembly is disposed through between the bottom surface of the sleeve 2 and the partition 5.

[0054] The sealing piston assembly includes a first sealing member provided between the bottom surface of the sleeve 2 and the bottle cap 3;

[0055] A second sealing member is disposed inside the high-pressure gas cavity 7 for sealing the partition 5;

[0056] A connecting rod 12, with one end disposed at the upper end of the second sealing member and the other end passing through the first sealing member to abut against the lower end surface of the filter layer 4.

[0057] Specifically, the first sealing member includes:

[0058] A first sealing piston 8, which is movably inserted into the hole at the bottom surface of the sleeve 2;

[0059] The first spring 9, one end of the first spring 9 is fixedly connected to the upper end face of the first sealing piston 8, and the other end abuts against and is connected to the lower end face of the filter layer 4;

[0060] Furthermore, in order to improve the stability of the first spring 9, a limiting post 18 is fixedly arranged on the lower end face of the filter layer 4. The limiting post 18 is sleeved inside the first spring 9 and has the function of preventing the first spring 9 from shaking.

[0061] Furthermore, the first spring 9 is in an extended state under normal conditions and has a relatively large elastic force. When the first spring 9 is compressed, it can push the first sealing piston 8 away from the hole on the bottom surface of the sleeve 2.

[0062] The second seal includes:

[0063] A second sealing piston 10, which is movably inserted into the through hole of the partition plate 5;

[0064] A second spring 11, one end of the second spring 11 is connected to the lower end face of the second sealing piston 10, and the other end is arranged on the inner bottom surface of the sampling bottle body 1.

[0065] Furthermore, the second spring 11 of the present application is in an extended state under normal conditions, and its elastic force satisfies the water pressure acting on the second sealing piston 10 after the water collection cavity 6 is filled with water. That is, the second spring 11 can ensure the sealing effect of the second sealing piston 10 after the water collection cavity 6 is filled with water.

[0066] Both the first sealing piston 8 and the second sealing piston 10 are rubber plugs with a conical structure.

[0067] A connecting rod 12 is arranged at the upper end of the second sealing piston 10. The connecting rod 12 passes through the first sealing piston 8 and is connected to the lower end face of the plastic grid 43.

[0068] A bottle cap 3, an external thread is provided at the upper end of the sleeve 2, and an internal thread matching the external thread of the sleeve 2 is provided on the inner wall of the bottle cap 3, thereby realizing the threaded connection between the bottle cap 3 and the sleeve 2.

[0069] A filter layer 4, the filter layer 4 is movably arranged inside the bottle cap 3.

[0070] The filter layer 4 includes a filter membrane 41, a filter screen 42 and a plastic grid 43 which are arranged in sequence from top to bottom, and the edges of the three are bonded together by hot melt adhesive.

[0071] Here, the filter membrane 41, the filter screen 42 and the plastic grid 43 are all structures well-known to those skilled in the art. The filter membrane 41 has the function of filtering tiny impurities in the sewage, the rigid plastic grid 43 has the function of supporting the filter screen 42, and the filter screen 42 has the function of filtering larger impurities in the sewage.

[0072] The limiting post 18 is integrally formed on the lower end surface of the plastic grid 43 and is provided with a limiting hole for clamping the connecting rod 12. The first spring 9 can be sleeved outside the limiting post 18.

[0073] In addition, a sealing ring 17 acting on the filter layer 4 is provided on the inner side wall of the bottle cap 3. The sealing ring 17 moves up and down together with the filter layer 4. The sealing ring 17 has the functions of preventing sewage from overflowing and enabling the filter layer 4 to slide up and down on the inner wall of the bottle cap 3.

[0074] A hole is opened at the center of the upper end surface of the bottle cap 3, and a horn-shaped diversion port 15 is slidably arranged in the hole. The diversion port 15 has the function of facilitating the collection of sewage and at the same time plays a role in pushing the filter layer 4.

[0075] An air inlet 16 is provided on the bottom surface of the sampling bottle body 1. The air inlet 16 is a structure well-known to those skilled in the art, which can be inflated conveniently and is not easy to leak after being filled with gas. Helium is filled into the high-pressure gas chamber 7 through the air inlet 16, which has the function of safety and can form an internal pressure.

[0076] Embodiment 2:

[0077] Different from Embodiment 1: A first rubber ring 13 is provided at the bottle mouth of the sampling bottle body 1, and a second rubber ring 14 is provided at the upper end of the sleeve 2, which plays the role of sealing to prevent sewage leakage.

[0078] Application Example:

[0079] Now, the specific application of the sewage sampling bottle for drug monitoring with auxiliary sampling in the present application during the sampling and treatment processes will be specifically described in combination with the application example.

[0080] In a certain area, in order to monitor the amount of drugs in its sewage and then estimate the per capita consumption of drugs for drug monitoring. In order to more quickly achieve the sampling and analysis of sewage, the sewage sampling bottle of the present utility model is used for sampling, and suspended particulate matter and other impurities can be quickly removed after sampling, and then the next step of instrument detection and analysis can be carried out to realize the monitoring of drugs in sewage.

[0081] The specific use process is as follows:

[0082] First, the sampling personnel fill high-pressure nitrogen into the high-pressure gas chamber 7 through the air inlet 16. At this time, under the action of the pressure of the second spring 11, the second sealing piston 10 tightly clamps on the partition layer 5, so that the high-pressure nitrogen will not leak into the water collection chamber 6.

[0083] Then, rotate and open the sleeve 2, inject the sewage to be detected into the water collection chamber 6, and then connect the sleeve 2 to the sampling bottle body 1 to seal the water collection chamber 6, completing the sewage collection work.

[0084] When the tester extracts the sewage to be tested using this sewage sampling bottle, just invert this sewage sampling bottle, align the diversion port 15 with the inner bottom of the container, and press down forcefully to retract the diversion port 15 into the bottle cap 3, driving the filter layer 4 to slide towards the bottom of the bottle cap 3. The rigid plastic grid 43 at the bottom of the filter layer 4 drives the connecting rod 12 to move backward simultaneously, causing the second sealing piston 10 to retract into the high-pressure air chamber 7 and the first sealing piston 8 to disengage from the bottom surface of the sleeve 2. At this time, a passage is formed among the high-pressure air chamber 7, the water collection chamber 6, the sleeve 2, the filter layer 4 and the bottle cap 3. The sewage is pressed into the filter layer 4 under the action of gravity and high-pressure nitrogen. The sewage first flows through the filter screen 42, and the larger impurities in the sewage are blocked by the filter screen 42. Then the sewage flows through the filter membrane 41 to filter out the tiny impurities in the sewage. Finally, the sewage flows out through the diversion port 15 into the container.

[0085] After the tester finishes the extraction, stop pressing down the sewage sampling bottle. The second sealing piston 10 returns to its original position under the action of the second spring 11. At the same time, the first sealing piston 8 also returns to its original position under the action of the first spring 9. The remaining sewage can still be stored in the water collection chamber 6.

[0086] This utility model can be reused. After the tester finishes extracting the sewage to be tested, first, the bottle cap 3 and the sleeve 2 can be rotated to open the sleeve 2 and the water collection chamber 6, replace the filter layer 4 and clean the sleeve 2 and the water collection chamber 6, and then it can be used again.

[0087] The above shows and describes the basic principle, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of this utility model. Without departing from the spirit and scope of this utility model, this utility model will have various changes and improvements, and these changes and improvements all fall within the scope of this utility model claimed. The scope of protection claimed by this utility model is defined by the appended claims and their equivalents.

Claims

1. A sewage sampling bottle for drug monitoring to assist in sampling, characterized in that: include: The sampling bottle body (1) has a water collecting chamber (6) and a high-pressure air chamber (7) separated by a partition (5); A sleeve (2) connected to the upper end of the sampling bottle body (1); A sealing piston assembly is provided between the sleeve (2) and the partition (5); The bottle cap (3) is connected to the upper end of the sleeve (2) and has a filter layer (4) inside.

2. A sewage sampling bottle for drug monitoring according to claim 1, characterized in that: The sealed piston assembly includes: A first sealing member, arranged between the bottom surface of the sleeve (2) and the bottle cap (3); A second sealing member is disposed in the high-pressure gas chamber (7) and is used to seal the partition plate (5); A connecting rod (12) has one end disposed on the upper end of the second sealing member and the other end passing through the first sealing member to abut against the lower end surface of the filter layer (4).

3. A sewage sampling bottle for drug monitoring according to claim 2, characterized in that: The first seal comprises: A first sealing piston (8) is inserted into the bottom surface of the sleeve (2); A first spring (9) has one end connected to the upper end surface of the first sealing piston (8) and the other end arranged on the lower end surface of the filter layer (4).

4. A sewage sampling bottle for drug monitoring according to claim 3, characterized in that: The second seal comprises: A second sealing piston (10) is inserted on the partition plate (5); The second spring (11) has one end connected to the lower end surface of the second sealing piston (10) and the other end connected to the inner bottom surface of the sampling bottle body (1).

5. A sewage sampling bottle for drug monitoring according to claim 4, characterized in that: The first sealing piston (8) and the second sealing piston (10) are both rubber stoppers with a conical structure.

6. A sewage sampling bottle for drug monitoring according to any one of claims 1 to 5, characterized in that: The filter layer (4) comprises a filter membrane (41), a filter screen (42) and a plastic mesh (43) which are arranged in sequence from top to bottom.

7. A sewage sampling bottle for drug monitoring according to claim 6, characterized in that: A flow guide port (15) is provided at the centre of the upper end surface of the bottle cap (3).

8. A sewage sampling bottle for drug monitoring according to claim 7, characterized in that: The bottom surface of the sampling bottle body (1) is provided with an air filling port (16).

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