Rapid sampling device for water pollution monitoring
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TONGJIA ENVIRONMENTAL PROTECTION TECH
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-07
AI Technical Summary
[0005]为了解决现有技术存在无实时过滤结构致杂质入筒增误差、降效率，或依赖人工手动加防腐剂，易遗漏、剂量不准且储药适配差，适用性欠佳的问题，本申请提供一种水污染监测用快速取样装置
[0016]1、本实用新型中，通过预留插槽与插板的可拆卸配合，搭配限位块、定位环组成的定位组件，无需额外工具即可快速完成过滤网的安装与拆卸，操作效率大幅提升，同时过滤网与进水口精准适配，取样时能实时阻挡碎屑、沙石等杂质进入储水筒，避免杂质污染水样或附着在筒壁影响后续监测，解决了现有装置易因杂质混入导致监测误差的问题。
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Figure CN224608732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring and sampling devices, and in particular to a rapid sampling device for water pollution monitoring. Background Technology
[0002] Rapid sampling devices for water pollution monitoring are specialized equipment used to collect water samples in water environment monitoring. Their core function is to obtain water samples quickly, efficiently, and accurately in scenarios such as routine water quality inspections and emergency responses to sudden water pollution.
[0003] However, in actual sampling work, it was found that the existing devices have obvious shortcomings: some existing devices do not have a real-time filtration structure. During sampling, debris, sand and other impurities in the water can easily enter the inside of the water storage tank. These impurities not only adhere to the inner wall of the water storage tank and are difficult to clean, but may also mix into the water sample, causing problems such as turbidity interference and heavy metal adsorption during subsequent monitoring, increasing monitoring errors. Cleaning the impurities on the inner wall of the water storage tank requires additional time, further reducing work efficiency. In the preservative addition process, existing devices generally rely on manual addition. After sampling, operators need to find the preservative reagent bottle separately, measure the dosage with a graduated cylinder, and then pour it into the water sample. The entire process is fragmented, which can easily lead to the water sample deteriorating during transportation or storage due to operators being busy or negligent in forgetting to add the preservative. Furthermore, the dosage may be inaccurate due to visual errors or improper operation during manual measurement. Insufficient dosage will not effectively preserve the water sample, while excessive dosage may interfere with the monitoring results of some indicators. Moreover, existing devices lack a compatible structure with the storage component, and the preservatives required for different monitoring items need to be carried separately, which can easily lead to reagent confusion or omission, resulting in poor applicability.
[0004] Therefore, in response to the existing problems, a rapid sampling device for water pollution monitoring is needed to solve the aforementioned issues. Utility Model Content
[0005] To address the problems of existing technologies, such as the lack of a real-time filtration structure leading to increased errors and reduced efficiency due to impurities entering the cylinder, or the reliance on manual addition of preservatives resulting in easy omissions, inaccurate dosages, poor drug compatibility, and unsatisfactory applicability, this application provides a rapid sampling device for water pollution monitoring.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A rapid sampling device for water pollution monitoring includes a water storage tank. Multiple water inlets are located at the top of the outer wall of the water storage tank. A reserved slot is located at the top edge of the water storage tank, communicating with the water inlets. A plate is detachably connected to the inner wall of the reserved slot. A top cover is fixedly connected to the top of the plate. A filter screen adapted to the water inlets is provided at the bottom of the outer wall of the plate and the top of the water storage tank. A fixing rod is fixedly connected to the top axis of the water storage tank, and the fixing rod is connected to the top cover via a positioning component.
[0008] As a further improvement of this utility model, a sliding rod is provided through the inner wall of the top cover, and the outer top end of the sliding rod is connected to the inner wall of the top of the water storage cylinder through a reset component. A drain outlet is provided at the bottom axis of the water storage cylinder, and a sealing cover is threadedly connected to the inner wall of the drain outlet. A bottom cover is fixedly connected to the bottom of the sealing cover, and a dosing chamber is fixedly connected to the top of the sealing cover. A dosing bladder is detachably connected to the top of the dosing chamber.
[0009] As a further improvement of this utility model, the positioning component includes a limiting block, which is fixedly connected to both sides of the top of the outer wall of the fixed sleeve rod. The top axis of the top cover is provided with a reserved through groove that matches the limiting block. The outer wall of the fixed sleeve rod is fitted with a positioning ring that matches the limiting block. The bottom of the positioning ring abuts against the top of the top cover.
[0010] As a further improvement of this utility model, the reset assembly includes a sliding sleeve, which is fixedly connected to the top of the outer wall of the sliding rod and slidably connected to the inner wall of the top of the water storage cylinder. A spring is provided at the bottom of the sliding sleeve, and the other end of the spring abuts against the inner wall of the top of the water storage cylinder. The spring is sleeved on the outside of the sliding rod.
[0011] As a further improvement of this utility model, a sealing ring is fixedly connected to the top side of the inner wall of the water storage cylinder, and the outer side of the slide rod penetrates the inner wall of the sealing ring.
[0012] As a further improvement of this utility model, a water level window is provided axially at the bottom end of the front side of the outer wall of the water storage cylinder.
[0013] As a further improvement of this utility model, a label holder is fixedly connected to the rear side of the outer wall of the water storage cylinder along the axial direction, and a recording label is detachably connected to the inner wall of the label holder.
[0014] As a further improvement of this utility model, a cross block is fixedly connected to the bottom of the bottom cover, and an easily breakable diaphragm is provided on the top of the medicine storage sac.
[0015] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0016] 1. In this utility model, the filter screen can be quickly installed and removed without additional tools by using a pre-reserved slot and a detachable insert plate, along with a positioning component consisting of a limiting block and a positioning ring. This greatly improves operational efficiency. At the same time, the filter screen is precisely matched with the water inlet, and during sampling, it can block debris, sand and other impurities from entering the water storage cylinder in real time, preventing impurities from contaminating the water sample or adhering to the cylinder wall and affecting subsequent monitoring. This solves the problem of monitoring errors caused by impurities in existing devices.
[0017] 2. In this utility model, the drug storage bag, the drug addition chamber, the slide bar, and the spring are linked together to form a reset assembly. After sampling, only the slide bar needs to be pressed to squeeze the drug storage bag to rupture and release the preservative, thus realizing the "sampling-addition" process in one step. Moreover, the drug storage bag can be flexibly replaced according to the monitoring items, which not only avoids the omissions of manual operation, but also improves the accuracy and adaptability of drug addition. Attached Figure Description
[0018] Figure 1 This is an isometric view of the rapid sampling device for water pollution monitoring proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the label holder of the rapid sampling device for water pollution monitoring proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the top cover of the rapid sampling device for water pollution monitoring proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the drain outlet of the rapid sampling device for water pollution monitoring proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the slide bar of the rapid sampling device for water pollution monitoring proposed in this utility model.
[0023] Legend:
[0024] 1. Water storage tank; 2. Water level window; 3. Water inlet; 4. Reserved slot; 5. Fixing rod; 6. Limiting block; 7. Top cover; 8. Insert plate; 9. Filter screen; 10. Positioning ring; 11. Label holder; 12. Recording label; 13. Drain outlet; 14. Sealing cover; 15. Dosing chamber; 16. Bottom cover; 17. Cross block; 18. Drug storage bladder; 19. Sliding rod; 20. Sliding sleeve; 21. Spring; 22. Sealing ring. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0029] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.
[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] Example 1: As Figure 1 - Figure 4As shown, a rapid sampling device for water pollution monitoring includes a water storage tank 1. Multiple water inlets 3 are provided at the top of the outer wall of the water storage tank 1. A reserved slot 4 is provided at the top edge of the water storage tank 1. The reserved slot 4 is connected to the water inlets 3. An insert plate 8 is detachably connected to the inner wall of the reserved slot 4. A top cover 7 is fixedly connected to the top of the insert plate 8. A filter screen 9 adapted to the water inlets 3 is provided at the bottom of the outer wall of the top cover 7 and the fixed sleeve rod 5 is fixedly connected to the top axis of the water storage tank 1. The fixed sleeve rod 5 is connected to the top cover 7 through a positioning component.
[0032] Specifically, this device is suitable for common monitoring scenarios such as shallow river areas, near-shore lakes, and industrial sewage outlets. The water storage tank 1 is made of corrosion-resistant polyethylene and has a volume of 500-1000mL to accommodate conventional sampling volumes. The filter screen 9 is made of 80-100 mesh nylon mesh, which can filter out impurities with a diameter of 0.15mm or larger. When installing the filter screen 9, first align the filter screen 9 at the bottom of the insert plate 8 with the reserved slot 4, and insert the insert plate 8 into the reserved slot 4. At this time, the insert plate 8 drives the top cover 7 to move synchronously until the reserved through groove at the top of the top cover 7 fits into the limiting block 6 on the outer wall of the fixing sleeve 5. Then, the positioning ring 10 is inserted from the top of the fixing sleeve 5 and slid downwards so that the bottom of the positioning ring 10 abuts against the top of the top cover 7. The top cover 7 is fixed to the fixing sleeve 5 through the cooperation of the positioning ring 10 and the limiting block 6, thus completing the installation of the insert plate 8 and the filter screen 9. When it is necessary to remove the filter screen... When cleaning or replacing the filter screen 9, simply slide the positioning ring 10 upwards to disengage it from the limiting block 6, and then pull the top cover 7 upwards to remove the insert plate 8 from the reserved slot 4, thus achieving quick disassembly and assembly of the filter screen 9. The beneficial effects of this structural design are as follows: Firstly, through the detachable connection between the reserved slot 4 and the insert plate 8, combined with the quick fixing and unlocking of the positioning component, the disassembly and assembly of the filter screen 9 can be completed without the need for additional tools, making the operation convenient and efficient, and greatly saving disassembly and assembly time; Secondly, the filter screen 9 is compatible with the water inlet 3. During the sampling process, when the water enters the water storage tank 1 from the water inlet 3, the filter screen 9 can directly filter the water, effectively blocking debris, sand and other impurities in the water from entering the interior of the water storage tank 1, preventing impurities from adhering to the inner wall of the water storage tank 1 or mixing into the water sample, ensuring the purity of the water sample, and reducing monitoring errors caused by impurities during subsequent monitoring.
[0033] Example 2: As Figure 3 - Figure 5As shown, a sliding rod 19 is installed on the inner wall of the top cover 7. The sliding rod 19 is made of 304 stainless steel and is 3-5 cm longer than the water storage cylinder 1 for easy pressing. The outer top of the sliding rod 19 is connected to the inner wall of the top of the water storage cylinder 1 through a reset component. A drain outlet 13 is opened at the bottom axis of the water storage cylinder 1. A sealing cap 14 is threaded onto the inner wall of the drain outlet 13. A bottom cover 16 is fixedly connected to the bottom of the sealing cap 14. A dosing chamber 15 is fixedly connected to the top of the sealing cap 14. A drug storage bladder 18 is detachably connected to the top of the dosing chamber 15. The drug storage bladder 18 is made of food-grade silicone and has a single bladder capacity of 5-10 mL to match different preservative dosages. The positioning component includes a limiting block 6, which is fixedly connected to both sides of the top of the outer wall of the fixing sleeve 5. A reserved through groove adapted to the limiting block 6 is opened at the top axis of the top of the top cover 7. The outer wall of the fixing sleeve 5 is fitted with... A positioning ring 10 adapted to the limiting block 6 is provided, and the bottom of the positioning ring 10 abuts against the top of the top cover 7; the reset assembly includes a sliding sleeve 20, which is fixedly connected to the top of the outer wall of the sliding rod 19 and slidably connected to the inner wall of the top of the water storage cylinder 1. A spring 21 is provided at the bottom of the sliding sleeve 20, and the other end of the spring 21 abuts against the inner wall of the top of the water storage cylinder 1. The spring 21 is sleeved on the outside of the sliding rod 19; a sealing ring 22 is fixedly connected to the top side of the inner wall of the water storage cylinder 1, and the outside of the sliding rod 19 penetrates the inner wall of the sealing ring 22; a water level window 2 is provided axially at the bottom end of the front side of the outer wall of the water storage cylinder 1; a label holder 11 is fixedly connected axially to the rear side of the outer wall of the water storage cylinder 1, and a recording label 12 is detachably connected to the inner wall of the label holder 11; a cross block 17 is fixedly connected to the bottom of the bottom cover 16, and a fragile diaphragm is provided at the top of the medicine storage sac 18;
[0034] Specifically, before sampling, the storage bladder 18 containing the corresponding preservative is installed at the top of the dosing chamber 15, and then the sealing cap 14 is threaded to the drain outlet 13 to complete the assembly of the dosing structure. During sampling, the water enters the water storage tank 1 through the inlet 3 and the filter screen 9. The operator can observe the water level in the water storage tank 1 through the water level window 2 set axially at the bottom front side of the outer wall of the water storage tank 1 to determine whether the sampling amount meets the standard. When the preservative needs to be added after sampling, simply press down on the sliding rod 19. The sliding rod 19 drives the sliding sleeve 20 to slide down along the inner wall of the top of the water storage tank 1. When the sliding sleeve 20 compresses the spring 21, the bottom end of the sliding rod 19 directly presses the top of the drug storage bladder 18 during its downward movement, causing the fragile diaphragm at the top of the drug storage bladder 18 to rupture. The preservative stored inside the drug storage bladder 18 then flows into the dosing chamber 15, and then into the water storage cylinder 1 to mix with the water sample, thus completing the "sampling-dosing" process in one step. After dosing, the sliding rod 19 is released, and the spring 21, under its own elastic restoring force, pushes the sliding sleeve 20 upward. The sliding sleeve 20 drives the sliding rod 19 to return to its original position, ready for the next operation. The sealing ring 22 is designed... This design effectively enhances the seal between the sliding rod 19 and the inner wall of the top of the water storage cylinder 1, preventing water sample leakage from the connection between the sliding rod 19 and the water storage cylinder 1. The advantages of this integrated "sampling-dosing" structure are: no need to manually add preservatives after sampling; the dosing action is triggered simply by pressing the sliding rod 19. The operation is simple and effectively avoids water sample deterioration or monitoring data deviation due to forgetting to add preservatives or inaccurate dosage. Furthermore, the dosing tank 18 and the dosing chamber 15 are detachably connected, facilitating the replacement of the dosing tank containing the corresponding preservatives for different monitoring items. The bladder 18 is more versatile; a label holder 11 is fixedly connected axially to the rear side of the outer wall of the water storage cylinder 1, and a recording label 12 is detachably connected to the inner wall of the label holder 11. After sampling, the operator can record information such as the sampling point and sampling time on the recording label 12 and insert it into the label holder 11, which is convenient for water sample identification and management and avoids confusion between different water samples; a cross block 17 is fixedly connected to the bottom of the bottom cover 16. When it is necessary to unscrew the sealing cover 14, the cross block 17 can increase the contact area between the hand and the bottom cover 16, making it easier for the operator to apply force and making the disassembly and installation of the sealing cover 14 easier.
[0035] Working principle: When using this rapid sampling device for water pollution monitoring, the first step is preparation. First, install the storage bladder 18 containing the preservative required for the corresponding monitoring item at the top of the dosing chamber 15. Then, grasp the cross block 17 at the bottom of the bottom cover 16 and apply force to thread the sealing cover 14 onto the drain outlet 13 at the bottom of the water tank 1, completing the dosing structure assembly. Next, install the filter screen 9. Align the side of the insert plate 8 with the filter screen 9 with the reserved slot 4 on the top edge of the water tank 1 and insert it, causing the insert plate 8 to move synchronously with the top cover 7. The pre-reserved through groove at the top of the top cover 7 is fitted into the limiting block 6 on the outer wall of the fixing sleeve 5. Then, the positioning ring 10 is fitted from the top of the fixing sleeve 5 and slid downwards, so that the bottom of the positioning ring 10 abuts against the top of the top cover 7. The top cover 7 is fixed by the cooperation of the positioning ring 10 and the limiting block 6, thereby completing the installation of the insert plate 8 and the filter screen 9. At the same time, the top of the sliding rod 19 passing through the inner wall of the top cover 7 is connected to the spring 21 on the inner wall of the top of the water storage cylinder 1 through the sliding sleeve 20. At this time, the spring 21 is in a naturally extended state, and the bottom of the sliding rod 19 does not contact the medicine storage bag 18. Once everything is ready, sampling begins. The end of the device with the inlet 3 is placed into the water body to be monitored. The water flows in from multiple inlets 3 at the top of the outer wall of the water storage tank 1. During the process, the filter screen 9 at the bottom of the outer wall of the insert plate 8, which is compatible with the inlet 3, directly filters the water, preventing debris, sand and other impurities from entering the water storage tank 1. The operator observes the internal water level through the water level window 2 at the bottom front of the outer wall of the water storage tank 1 to determine whether the sampling amount meets the standard. When the water level reaches the required amount, the device is placed in the water body to complete the sampling. After sampling, the dosing operation is performed. Press down on the slide rod 19. The slide rod 19 drives the slide sleeve 20 to slide down along the inner wall of the top of the water storage cylinder 1. The slide sleeve 20 compresses the spring 21. At the same time, the bottom end of the slide rod 19 passes through the sealing ring 22 on the top side of the inner wall of the water storage cylinder 1 (the sealing ring 22 ensures the airtightness here and prevents water sample leakage), directly squeezing the top of the drug storage bladder 18, causing the fragile diaphragm of the drug storage bladder 18 to rupture. The internal preservative flows into the dosing chamber 15, and then enters the water storage cylinder 1 through the dosing chamber 15 to mix with the water sample. After the dosing is completed, release the slide rod 19. Under the action of the elastic restoring force, the spring 21 pushes the slide sleeve 20 to slide upward, and the slide sleeve 20 drives the slide rod 19 to return to its original position. Finally, follow-up processing is performed by inserting the recording tag 12, which contains information such as the sampling point and time, into the tag holder 11 on the back of the outer wall of the water storage tank 1 to identify the water sample. If the water sample needs to be removed, hold the cross block 17 again and turn the bottom cover 16 to separate the sealing cover 14 from the drain outlet 13, and the water sample will flow out from the drain outlet 13. If the filter screen 9 needs to be cleaned or replaced, slide the positioning ring 10 upward to disengage it from the limiting block 6, pull the top cover 7 to drive the insert plate 8 out of the reserved slot 4, and the filter screen 9 can be processed.
[0036] 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 rapid sampling device for water pollution monitoring, comprising a water storage tank (1), characterized in that: The water storage cylinder (1) has multiple water inlets (3) at the top of its outer wall. The water storage cylinder (1) has a reserved slot (4) at its top edge. The reserved slot (4) is connected to the water inlet (3). The inner wall of the reserved slot (4) is detachably connected to a plate (8). The top of the plate (8) is fixedly connected to a top cover (7). The bottom of the outer wall of the plate (8) is provided with a filter screen (9) that is compatible with the water inlet (3). The top axis of the water storage cylinder (1) is fixedly connected to a fixing sleeve rod (5). The fixing sleeve rod (5) is connected to the top cover (7) through a positioning component.
2. The rapid sampling device for water pollution monitoring according to claim 1, characterized in that: A sliding rod (19) is provided through the inner wall of the top cover (7). The outer top end of the sliding rod (19) is connected to the inner wall of the top of the water storage cylinder (1) through a reset assembly. A drain outlet (13) is provided at the bottom axis of the water storage cylinder (1). A sealing cover (14) is threadedly connected to the inner wall of the drain outlet (13). A bottom cover (16) is fixedly connected to the bottom of the sealing cover (14). A dosing chamber (15) is fixedly connected to the top of the sealing cover (14). A drug storage bag (18) is detachably connected to the top of the dosing chamber (15).
3. The rapid sampling device for water pollution monitoring according to claim 1, characterized in that: The positioning component includes a limiting block (6), which is fixedly connected to both sides of the top of the outer wall of the fixed sleeve rod (5). The top axis of the top cover (7) is provided with a reserved through groove that matches the limiting block (6). The outer wall of the fixed sleeve rod (5) is fitted with a positioning ring (10) that matches the limiting block (6). The bottom of the positioning ring (10) abuts against the top of the top cover (7).
4. The rapid sampling device for water pollution monitoring according to claim 2, characterized in that: The reset assembly includes a sliding sleeve (20), which is fixedly connected to the top of the outer wall of the sliding rod (19). The sliding sleeve (20) is slidably connected to the inner wall of the top of the water storage cylinder (1). A spring (21) is provided at the bottom of the sliding sleeve (20). The other end of the spring (21) abuts against the inner wall of the top of the water storage cylinder (1). The spring (21) is sleeved on the outside of the sliding rod (19).
5. The rapid sampling device for water pollution monitoring according to claims 1 and 4, characterized in that: A sealing ring (22) is fixedly connected to the top side of the inner wall of the water storage cylinder (1), and the outer side of the slide rod (19) penetrates the inner wall of the sealing ring (22).
6. The rapid sampling device for water pollution monitoring according to claim 1, characterized in that: A water level window (2) is provided axially at the bottom end of the front side of the outer wall of the water storage cylinder (1).
7. The rapid sampling device for water pollution monitoring according to claim 1, characterized in that: A label holder (11) is fixedly connected axially to the rear side of the outer wall of the water storage cylinder (1), and a recording label (12) is detachably connected to the inner wall of the label holder (11).
8. The rapid sampling device for water pollution monitoring according to claim 2, characterized in that: The bottom of the bottom cover (16) is fixedly connected to a cross block (17), and the top of the medicine storage sac (18) is provided with a fragile diaphragm.