Water quality sampler for environmental detection
By designing an independent sample collection box and switching disc structure in the water quality sampler, the problem of cross-contamination of samples in the existing technology is solved, and independent collection of dual samples is realized, thereby improving the reliability of the test results.
Patent Information
- Application Number
- CN202521986956.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
When existing water quality samplers need to collect parallel samples or samples from different time periods at the same sampling point, cross-contamination between samples can easily occur, affecting the reliability of the test results.
The design incorporates an independent sample collection box and switching tray structure. The switching tray allows for the switching of sampling channels, enabling independent collection of dual samples and preventing cross-contamination.
It enables independent collection of parallel samples at the same sampling point or samples from different time periods, avoiding cross-contamination between samples and improving the reliability of test results.
Smart Images
Figure CN224681867U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality sampling technology, specifically to a water quality sampler for environmental testing. Background Technology
[0002] A water sampler is a device used for collecting water samples. In the field of environmental monitoring, water sampling is a key preliminary step in obtaining water pollution data and assessing water environmental quality. It provides samples for water quality testing by collecting water samples from natural or artificial water bodies.
[0003] Most existing water quality samplers are designed for single-sample collection. When parallel samples need to be collected at the same sampling point to verify data repeatability, or when water samples need to be collected at different time periods to analyze dynamic changes in water quality, the sample container needs to be changed frequently, which can easily lead to cross-contamination between samples and affect the reliability of the test results. Utility Model Content
[0004] The purpose of this invention is to provide an environmental testing water quality sampler. This device is equipped with an independent sample receiving box and a switching disk to switch the sampling channel, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmental testing water quality sampler, comprising a base, with casters on the lower surface of the base, and a housing fixedly mounted on the upper surface of the base. The housing is a hollow cuboid structure with an open upper surface. A first partition is fixedly mounted on the inner wall of the housing. One side surface of the first partition and the inner wall of the housing form a pump chamber. A second partition and a third partition are fixedly mounted on the other side surface of the first partition. The second and third partitions are perpendicular to the surface of the first partition, and their other ends are fixedly connected to the inner wall of the housing. The second partition and the inner wall of the housing form a sample delivery chamber. A switching chamber is formed between the second and third partitions. A fourth partition is vertically fixed on the side surface of the third partition. The other end of the fourth partition is fixedly connected to the inner wall of the housing. The third and fourth partitions and the inner wall of the housing form two sample receiving chambers.
[0006] Preferably, a sampling structure is provided in the pump body chamber, the sampling structure including a peristaltic pump, the peristaltic pump is fixedly installed in the pump body chamber of the outer shell, the water inlet pipe of one end of the peristaltic pump passes through and is fixed to the side surface of the outer shell, the water outlet pipe of the other end of the peristaltic pump passes through and is fixed to the surface of the first partition and is inserted into the sampling chamber of the outer shell, and a cover plate is provided above the peristaltic pump, the cover plate slides through the side surface of the outer shell, and the cover plate covers the pump body chamber.
[0007] Using the above technical solution, water sampling can be achieved through the sampling structure.
[0008] Preferably, one end of the water inlet pipe is fixedly connected to the sampling hose, and the other end of the sampling hose is coiled and installed on the outer surface of the support tray, which is fixedly installed on the outer surface of the outer shell.
[0009] Using the above technical solution, the sampling tube can be stored using a tray.
[0010] Preferably, the surface of the second partition plate is symmetrically provided with two connection holes, which are respectively aligned with the two connection holes provided on the surface of the third partition plate. The two connection holes on the surface of the third partition plate are respectively threaded to the liquid inlet of the two sample collection boxes through flexible tubes. The two sample collection boxes are respectively located in two sample collection chambers inside the outer shell.
[0011] Using the above technical solution, the water sample can be supported by the sample receiving box.
[0012] Preferably, the switching chamber is provided with a sample feeding switching structure, which includes a switching disk. The switching disk is a circular plate structure. The two side surfaces of the switching disk are rotatably mounted on the surfaces of the second partition and the third partition, respectively. The surface of the switching disk is provided with sample feeding holes, which are aligned with the connecting holes on both sides. The outer surface of the switching disk is provided with toothed blocks, which mesh with gears. The gears are fixedly connected to the output end of a motor, and the motor is fixedly mounted on the surface of the third partition.
[0013] Using the above technical solution, the sample switching structure allows for switching of the sample receiving box as needed.
[0014] Preferably, the surface of the switching disk is provided with a limiting structure, which restricts the position of the switching disk through limiting holes and limiting rods.
[0015] Using the above technical solution, the position of the switching disk can be restricted through the limiting structure.
[0016] Preferably, the limiting structure includes limiting holes symmetrically arranged on the surface of the switching disk. The upper limiting hole is aligned with the support groove, which is a U-shaped structure. The support groove is fixedly installed on the upper surface of the third partition. A limiting rod slides through the surface of the support groove. One end of the limiting rod is inserted into the limiting hole on the surface of the switching disk, and an electromagnet is fixedly installed on the other end of the limiting rod. The electromagnet is aligned with a magnetic block, which is fixedly installed on the outer surface of the support groove.
[0017] Using the above technical solution, the switching disk can be limited by the engagement between the limiting hole and the limiting rod.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This environmental testing water quality sampler:
[0019] 1. This device can be moved to different sampling locations by the casters on the lower surface of the base, reducing the physical exertion of outdoor sampling. One end of the sampling hose is fixedly connected to the water inlet pipe, and the other end is coiled on the support tray on the outer surface of the shell. When in use, the hose can be flexibly stretched according to the sampling depth and distance, without the need to carry additional storage tools, and avoids the hose from getting tangled and knotted, reducing space occupation and improving the convenience of equipment storage.
[0020] 2. This device has two independent sample receiving chambers separated inside the outer shell. With the help of the rotating switching disk, the sample delivery hole on the surface of the switching disk can be aligned with different connection holes, so as to selectively collect the collected water sample into the corresponding sample receiving box, realizing the independent collection of dual samples. In scenarios where parallel samples or samples from different time periods need to be collected at the same sampling point, cross-contamination between samples can be avoided.
[0021] 3. The switching disk in this device is provided with a limiting hole on its surface. When the switching disk rotates to the target position, the limiting rod is inserted into the limiting hole on the surface of the switching disk under the interaction force of the electromagnet and the magnetic block, thus fixing the switching disk and preventing the switching disk from shifting due to vibration during the movement of the equipment, thereby preventing water sample leakage caused by misalignment between the sample feeding hole and the connection hole. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the peristaltic pump installation structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the cover plate structure of this utility model;
[0025] Figure 4 This is a top view of the outer shell structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the No. 2 partition structure of this utility model;
[0027] Figure 6 This is a schematic diagram of the switching disk structure of this utility model;
[0028] Figure 7 This is a schematic diagram of the sample receiving box structure of this utility model;
[0029] Figure 8 This is a schematic diagram of the gear mounting structure of this utility model;
[0030] Figure 9 This utility model Figure 8Enlarged structural diagram at point A in the middle.
[0031] In the diagram: 1. Base; 2. Casters; 3. Outer shell; 4. Partition 1; 5. Partition 2; 6. Partition 3; 7. Partition 4; 8. Cover plate; 9. Peristaltic pump; 10. Inlet pipe; 11. Outlet pipe; 12. Sampling hose; 13. Support tray; 14. Connection hole; 15. Switching plate; 16. Sample delivery hole; 17. Sample receiving box; 18. Limiting hole; 19. Support groove; 20. Limiting rod; 21. Electromagnet; 22. Magnetic block; 23. Gear; 24. Motor. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-9 This utility model provides a technical solution: an environmental testing water quality sampler, including a base 1, a moving wheel 2, a shell 3, a first partition 4, a second partition 5, a third partition 6, a fourth partition 7, a cover plate 8, a peristaltic pump 9, an inlet pipe 10, an outlet pipe 11, a sampling hose 12, a support tray 13, a connecting hole 14, a switching plate 15, a sample delivery hole 16, a sample receiving box 17, a limiting hole 18, a support groove 19, a limiting rod 20, an electromagnet 21, a magnetic block 22, a gear 23, and a motor 24.
[0034] The lower surface of the base 1 is provided with a moving wheel 2. The upper surface of the base 1 is fixedly installed with a shell 3. The shell 3 is a hollow cuboid structure with an open upper surface. A first partition 4 is fixedly installed on the inner wall of the shell 3. One side surface of the first partition 4 and the inner wall of the shell 3 form a pump chamber. A second partition 5 and a third partition 6 are fixedly installed on the other side surface of the first partition 4. The second partition 5 and the third partition 6 are perpendicular to the surface of the first partition 4. The other ends of the second partition 5 and the third partition 6 are fixedly connected to the inner wall of the shell 3. The second partition 5 and the inner wall of the shell 3 form a sample delivery chamber. The second partition 5 and the third partition 6 form a switching chamber. A fourth partition 7 is fixedly fixed vertically on the side surface of the third partition 6. The other end of the fourth partition 7 is fixedly connected to the inner wall of the shell 3. The third partition 6, the fourth partition 7 and the inner wall of the shell 3 form two sample receiving chambers.
[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the operator pushes the base 1, and moves the entire water quality sampler to the target sampling point via the moving wheels 2 installed on the lower surface of the base 1. According to the sampling requirements, the sampling hose 12 is extended to the water sample collection point. The interior of the outer shell 3 is divided into different functional areas by partition 4, partition 5, partition 6 and partition 7. The pump chamber provides sampling power, the sample delivery chamber is used to transport water samples, the switching chamber is used to switch the sample receiving box 17, and the sample receiving chamber is used to accommodate the sample receiving box 17.
[0036] A sampling structure is provided inside the pump body chamber, including a peristaltic pump 9. The peristaltic pump 9 is fixedly installed inside the pump body chamber of the outer shell 3. The water inlet pipe 10 of one end of the peristaltic pump 9 passes through and is fixed to the side surface of the outer shell 3. The water outlet pipe 11 of the other end of the peristaltic pump 9 passes through and is fixed to the surface of the first partition 4 and is inserted into the sampling chamber of the outer shell 3. A cover plate 8 is provided above the peristaltic pump 9. The cover plate 8 slides through the side surface of the outer shell 3 and covers the pump body chamber. The water inlet pipe 10 is fixedly connected to one end of the sampling hose 12. The other end of the sampling hose 12 is coiled and installed on the outer surface of the support tray 13. The support tray 13 is fixedly installed on the outer surface of the outer shell 3. Two connection holes 14 are symmetrically arranged on the surface of the second partition 5. The two connection holes 14 are respectively connected to two connection holes 14 on the surface of the third partition 6. Two connection holes 14 are aligned. The two connection holes 14 on the surface of the third partition 6 are respectively threaded to the inlet of the two sample collection boxes 17 through hoses. The two sample collection boxes 17 are respectively located in two sample collection chambers inside the outer shell 3. A sample feeding switching structure is provided in the switching chamber. The sample feeding switching structure includes a switching disk 15, which is a circular plate structure. The two sides of the switching disk 15 are respectively rotatably mounted on the surfaces of the second partition 5 and the third partition 6. The surface of the switching disk 15 is provided with sample feeding holes 16, which are aligned with the connection holes 14 on both sides. The outer surface of the switching disk 15 is provided with toothed blocks, which mesh with gears 23. Gears 23 are fixedly connected to the output end of motor 24. Motor 24 is fixedly mounted on the surface of the third partition 6.
[0037] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, when using this device to sample water quality, the sample container 17 can be switched and stored as needed:
[0038] When the water sample is collected into the sample collection box 17 on the left, the peristaltic pump 9 is started. The inlet pipe 10 at one end of the peristaltic pump 9 generates negative pressure, which draws the water sample from the sampling hose 12. The water sample enters the outlet pipe 11 through the inlet pipe 10, passes through the first partition 4 and enters the sample delivery chamber. At this time, the water sample in the sample delivery chamber enters the switching chamber through the left connecting hole 14 on the surface of the second partition 5. The sample delivery hole 16 on the surface of the switching plate 15 in the switching chamber is aligned with the left connecting hole 14 on the surface of the third partition 6. The water sample flows from the left connecting hole 14 on the surface of the third partition 6 and the matching hose, and finally flows into the sample collection box 17 on the left.
[0039] When the water sample is collected into the sample collection box 17 on the right, the peristaltic pump 9 is started. The inlet pipe 10 at one end of the peristaltic pump 9 generates negative pressure, which draws the water sample from the sampling hose 12. The water sample enters the outlet pipe 11 through the inlet pipe 10, passes through the first partition 4 and enters the sample delivery chamber. At this time, the water sample in the sample delivery chamber enters the switching chamber through the right connection hole 14 on the surface of the second partition 5. The sample delivery hole 16 on the surface of the switching plate 15 in the switching chamber is aligned with the right connection hole 14 on the surface of the third partition 6. The water sample flows from the right connection hole 14 on the surface of the third partition 6 and the matching hose, and finally flows into the sample collection box 17 on the right.
[0040] After the collection is completed, the peristaltic pump 9 is turned off. The same water sample can be sampled separately at different times through the two sample collection boxes 17.
[0041] The surface of the switching disk 15 is provided with a limiting structure. The limiting structure restricts the position of the switching disk 15 through the limiting hole 18 and the limiting rod 20. The limiting structure includes the limiting hole 18, which is symmetrically arranged on the surface of the switching disk 15. The upper limiting hole 18 is aligned with the support groove 19. The support groove 19 has a U-shaped structure and is fixedly installed on the upper surface of the third partition 6. The limiting rod 20 slides through the surface of the support groove 19. One end of the limiting rod 20 is inserted into the limiting hole 18 on the surface of the switching disk 15, and the other end of the limiting rod 20 is fixedly installed with an electromagnet 21. The electromagnet 21 is aligned with the magnetic block 22, and the magnetic block 22 is fixedly installed on the outer surface of the support groove 19.
[0042] like Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, during the process of rotating the switching disk 15 to switch the sampling path, the motor 24 is started, which drives the gear 23 to rotate. The rotating gear 23 rotates the switching disk 15 through the toothed blocks on the outer surface of the switching disk 15, thereby rotating the sampling hole 16 on the surface of the switching disk 15. The rotating switching disk 15 is limited by the engagement between the limiting hole 18 and the limiting rod 20 to prevent the switching disk 15 from shifting during sampling. The electromagnet 21 is started, and the electromagnet 21 is energized to generate an attractive force with the magnetic block 22. The attraction between the electromagnet 21 and the magnetic block 22 drives the limiting rod 20 to insert into the limiting hole 18 on the surface of the switching disk 15, thereby limiting the switching disk 15. Conversely, when it is necessary to rotate the switching disk 15 to switch, the direction of the magnetic pole of the electromagnet 21 is adjusted. Under the repulsive force between the electromagnet 21 and the magnetic block 22, the limiting rod 20 is pulled out from the limiting hole 18 of the switching disk 15, releasing the limitation on the switching disk 15.
[0043] Working principle: When using this environmental water quality sampler, the device moves to the sampling point via the casters 2 on the lower surface of the base 1. The sampling hose 12 is inserted into the water sample, and the peristaltic pump 9 is started. The peristaltic pump 9 generates negative pressure, causing the water sample to enter the sample delivery chamber through the sampling hose 12, inlet pipe 10, and outlet pipe 11. If the water sample enters the left sample receiving box 17, the sample delivery hole 16 on the surface of the switching disk 15 is aligned with the left connecting hole 14 of the second partition 5 and the third partition 6, and the water sample flows into the left sample receiving box 17. Conversely, if the water sample enters the left sample receiving box 17, the sample delivery hole 16 on the surface of the switching disk 15 is aligned with the left connecting hole 14 of the second partition 5 and the third partition 6, and the water sample flows into the left sample receiving box 17. The sample feeding port 16 is aligned with the connecting hole 14 on the right side of the second partition 5 and the third partition 6. The water sample flows into the sample receiving box 17 on the right side. During the switching process, the motor 24 is started. The motor 24 drives the gear 23 to rotate. The rotating gear 23 drives the switching disk 15 to rotate to realize the switching of the sample feeding port 16. After the switching disk 15 is in place, the force between the electromagnet 21 and the magnetic block 22 drives the upper limit rod 20 of the support groove 19 to insert into the limit hole 18 to fix the switching disk 15 and prevent the switching disk 15 from shifting, which increases the overall practicality.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An environmental water quality sampler, comprising a base (1), wherein a caster wheel (2) is provided on the lower surface of the base (1), and a housing (3) is fixedly mounted on the upper surface of the base (1), characterized in that: The outer shell (3) is a hollow cuboid structure with an open upper surface. A first partition (4) is fixedly installed on the inner wall of the outer shell (3). One side surface of the first partition (4) and the inner wall of the outer shell (3) form a pump chamber. A second partition (5) and a third partition (6) are fixedly installed on the other side surface of the first partition (4). The second partition (5) and the third partition (6) are perpendicular to the surface of the first partition (4). The other end of the partition (5) is fixedly connected to the inner wall of the outer shell (3). The second partition (5) and the inner wall of the outer shell (3) form a sample delivery chamber. The second partition (5) and the third partition (6) form a switching chamber. The side surface of the third partition (6) is vertically fixed with the fourth partition (7). The other end of the fourth partition (7) is fixedly connected to the inner wall of the outer shell (3). The third partition (6), the fourth partition (7) and the inner wall of the outer shell (3) form two sample receiving chambers.
2. The environmental water quality sampler according to claim 1, characterized in that: A sampling structure is provided in the pump body chamber. The sampling structure includes a peristaltic pump (9). The peristaltic pump (9) is fixedly installed in the pump body chamber of the outer shell (3). The inlet pipe (10) of one end of the peristaltic pump (9) passes through and is fixed to the side surface of the outer shell (3). The outlet pipe (11) of the other end of the peristaltic pump (9) passes through and is fixed to the surface of the first partition (4) and inserted into the sample delivery chamber of the outer shell (3). A cover plate (8) is provided above the peristaltic pump (9). The cover plate (8) slides through the side surface of the outer shell (3) and covers the pump body chamber.
3. The environmental water quality sampler according to claim 2, characterized in that: The water inlet pipe (10) is fixedly connected to one end of the sampling hose (12), and the other end of the sampling hose (12) is coiled and installed on the outer surface of the support tray (13). The support tray (13) is fixedly installed on the outer surface of the outer shell (3).
4. The environmental water quality sampler according to claim 1, characterized in that: The surface of the second partition (5) is symmetrically provided with two connection holes (14), which are respectively aligned with the two connection holes (14) provided on the surface of the third partition (6). The two connection holes (14) on the surface of the third partition (6) are respectively threaded to the liquid inlet of the two sample collection boxes (17) through flexible tubes. The two sample collection boxes (17) are respectively located in two sample collection chambers inside the outer shell (3).
5. The environmental water quality sampler according to claim 1, characterized in that: The switching chamber is provided with a sample feeding switching structure, which includes a switching disk (15). The switching disk (15) is a circular plate structure. The two sides of the switching disk (15) are respectively rotatably mounted on the surfaces of the second partition (5) and the third partition (6). The surface of the switching disk (15) is provided with a sample feeding hole (16). The sample feeding hole (16) is aligned with the connecting holes (14) on both sides. The outer surface of the switching disk (15) is provided with a toothed block. The toothed block on the outer surface of the switching disk (15) meshes with a gear (23). The gear (23) is fixedly connected to the output end of the motor (24). The motor (24) is fixedly mounted on the surface of the third partition (6).
6. The environmental testing water quality sampler according to claim 5, characterized in that: The surface of the switching disk (15) is provided with a limiting structure, which restricts the position of the switching disk (15) through a limiting hole (18) and a limiting rod (20).
7. The environmental testing water quality sampler according to claim 6, characterized in that: The limiting structure includes limiting holes (18), which are symmetrically arranged on the surface of the switching disk (15). The upper limiting hole (18) is aligned with the support groove (19). The support groove (19) is a U-shaped structure and is fixedly installed on the upper surface of the third partition (6). A limiting rod (20) slides through the surface of the support groove (19). One end of the limiting rod (20) is inserted into the limiting hole (18) on the surface of the switching disk (15). An electromagnet (21) is fixedly installed on the other end of the limiting rod (20). The electromagnet (21) is aligned with the magnetic block (22), and the magnetic block (22) is fixedly installed on the outer surface of the support groove (19).