Water quality sampler

Abstract

The invention discloses a water quality sampler which comprises a sampler body, a sample bin is formed in the sampler body, a side block is fixed to the outer wall of the sampler body, an L-shaped bent rod is fixed to the side block, a long vertical sleeve is fixed to the end of the L-shaped bent rod, a push rod is slidably connected into the long vertical sleeve, and an end block is fixed to the bottom of the push rod; and the upper cover block shields the opening at the upper end of the sample bin. Before sampling, the plugging head of the lower cover block is tightly attached to the inner wall of the sample bin, the spring pushes the sliding block through elastic force to enable the lower cover block to stably abut against the bottom opening of the sample bin, and initial leakage is completely eradicated; during sampling, the upper cover block is clamped with the clamping groove of the side block through the clamping block to realize transverse positioning, the moving block is attached to the side block under the action of the limiting piece to limit the vertical displacement of the upper cover block, and even if the sample bin is filled with a water sample and the weight is increased, the condition that the upper cover block is separated from the sampler does not occur.

Description

Technical Field

[0001] This invention relates to the field of water quality analysis technology, and in particular to a water quality sampler. Background Technology

[0002] In environmental monitoring and water quality analysis, collecting representative water samples from rivers, lakes, and sewage treatment plants is a fundamental step in subsequent testing and analysis. Traditional water sampling often relies on simple test tubes, open buckets, or sampling tools without specialized protective designs. These tools, lacking sealing and protective structures, easily allow air to enter during sampling, forming bubbles, or attract surface debris, bottom sediment, and other impurities, directly contaminating the water sample. Furthermore, because these tools lack depth control, it is difficult for staff to accurately locate and obtain samples from specific water layers (such as the middle layer or water above bottom sediments), resulting in samples that do not accurately reflect the water quality of the target monitoring area and affecting the accuracy of subsequent test results.

[0003] In addition, traditional sampling tools have obvious functional defects: most tools lack anti-backflow design, and during the lifting process after sampling, the collected water sample is prone to backflow into the water body due to the lack of shielding or insufficient sealing at the port, resulting in sample loss; and for water samples containing suspended particles (such as industrial wastewater and silt particles in river water), existing tools cannot complete filtration simultaneously during sampling, and the water sample needs to be transferred to a special filtration device for secondary treatment, which not only increases the operation steps and extends the sampling time, but may also introduce new pollution during the transfer process, further affecting the detection efficiency and accuracy.

[0004] Therefore, it is urgent to optimize the structure and upgrade the functions of traditional water quality sampling devices to solve core problems such as sampling contamination, depth control, backflow prevention and synchronous filtration, so as to meet the needs of accurate and efficient water quality sampling.

[0005] Therefore, it is necessary to improve traditional sampling devices to avoid the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a water quality sampler to solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A water quality sampler, comprising: A sampler is provided with a sample chamber. A side block is fixed on the outer wall of the sampler, and an L-shaped bent rod is fixed on the side block. A long vertical sleeve is fixed to the end of the L-shaped bent rod, and a push rod is slidably connected inside the long vertical sleeve. An end block is fixed to the bottom of the push rod. The upper cover block covers the upper opening of the sample chamber and has a screw hole that is threadedly connected to the end block. The side block has a positioning element for positioning the upper cover block. The slider has a vertical hole that slides and connects with the L-shaped curved rod, and the slider is fixedly connected to a connecting rod. The connecting rod is fixed with a lower cover block that abuts against the bottom opening of the sample chamber, and the lower cover block is fixed with a sealing head that fits against the inner wall of the sample chamber. A spring is sleeved on the L-shaped curved rod. A fixing block is fixed on the outer wall of the sampler, and the fixing block has a slot that matches the sealing head.

[0008] Preferably, the positioning component includes a movable block slidably connected to an L-shaped bent rod, the movable block having a circular hole, the upper cover having a notch adapted to the movable block, the side block having a slot, and the upper cover having a locking block that engages with the slot. The movable block remains in contact with the side block under the action of the limiting component.

[0009] Preferably, the limiting component includes a rotating rod rotatably connected to an L-shaped curved rod, and a hemispherical block is fixed at the bottom of the rotating rod. The moving block has a hemispherical groove that matches the hemispherical block. A torsion spring is provided on the L-shaped curved rod, with one end of the torsion spring fixed to the L-shaped curved rod and the other end fixed to the rotating rod. The hemispherical block is made of a corrosion-resistant material. The L-shaped curved rod has a fitting component that restricts the position of the rotating rod and prevents the hemispherical block from disengaging from the hemispherical groove.

[0010] Preferably, the mating component includes a pressure block slidably connected to an L-shaped bent rod, a side groove adapted to the pressure block is provided on the moving block, an arc-shaped block is fixed on the pressure block, and an arc-shaped groove adapted to the arc-shaped block is provided on the side groove, and a corresponding groove adapted to the arc-shaped block is provided on the rotating rod.

[0011] Preferably, the sampler is fixed with a plurality of evenly distributed filter screens, one end of which is flush with the inner wall of the sample chamber, and the other end is located on the outer wall of the sampler and in contact with the air.

[0012] Preferably, one end of the spring abuts against the bottom of the slider, and the other end abuts against the upper surface of the pressure block.

[0013] Preferably, the spring force of the torsion spring pushes the rotating rod to rotate until the bottom bend of the rotating rod is away from the upper surface of the moving block.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Before sampling, the sealing head of the lower cover block is tightly fitted to the inner wall of the sample chamber. The spring force pushes the slider to make the lower cover block stably abut against the bottom opening of the sample chamber, preventing initial leakage. During sampling, the upper cover block is horizontally positioned by engaging with the side block through the locking block and the side block slot. The moving block is fitted with the side block under the action of the limiting component, which restricts the vertical displacement of the upper cover block. Even if the sample chamber is filled with water sample and the weight increases, the upper cover block will not separate from the sampler.

[0015] 2. This application can simultaneously filter suspended impurities in the water body through the filter screen on the outer wall of the sampler, and the moving block, pressing block and other components are always located above the water sample surface to avoid contact with the water sample and cause secondary pollution, ensuring that the collected water sample can truly reflect the water quality of the target water area. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a water quality sampling device provided according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the sample removal state structure of a water quality sampling device provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of each part of the water quality sampling device provided according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the sample chamber structure provided according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a sealing head structure provided according to an embodiment of the present invention is shown; Legend: 1. Sampler; 2. Sample chamber; 3. Filter screen; 4. Side block; 5. L-shaped bent rod; 6. Long vertical sleeve; 7. Push rod; 8. End block; 9. Top cover block; 10. Screw hole; 11. Locking block; 12. Notch; 13. Locking groove; 14. Spring; 15. Sliding block; 16. Vertical hole; 17. Connecting rod; 18. Lower cover block; 19. Sealing head; 20. Handle; 21. Moving block; 22. Side groove; 23. Round hole; 24. Arc groove; 25. Hemispherical groove; 26. Pressure block; 27. Arc block; 28. Rotating rod; 29. ​​Corresponding groove; 30. Hemispherical block; 31. Torsion spring; 32. Fixing block; 33. Slot. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-5 The present invention provides a technical solution: A water quality sampler, comprising: Sampler 1, sample chamber 2 is provided on sampler 1, side block 4 is fixed on the outer wall of sampler 1, and L-shaped bent rod 5 is fixed on side block 4. Long vertical sleeve 6 is fixed at the end of L-shaped bent rod 5, and push rod 7 is slidably connected inside long vertical sleeve 6. End block 8 is fixed at the bottom of push rod 7. The upper cover block 9 blocks the upper opening of the sample chamber 2, and the upper cover block 9 is provided with a screw hole 10 that is connected to the end block 8 by a thread. The side block 4 is provided with a positioning component for positioning the upper cover block 9. The slider 15 has a vertical hole 16 that is slidably connected to the L-shaped bent rod 5, and the slider 15 is fixedly connected to the connecting rod 17. The connecting rod 17 is fixed with a lower cover block 18 that abuts against the bottom opening of the sample chamber 2, and the lower cover block 18 is fixed with a sealing head 19 that fits against the inner wall of the sample chamber 2. The L-shaped bent rod 5 is fitted with a spring 14, and the slider 15 is fixed with a handle 20 that facilitates the rotation of the connecting rod 17. The sampler 1 is fixed with a fixed block 32 on its outer wall, and the fixed block 32 has a slot 33 that matches the sealing head 19. When it is necessary to remove the water sample from the sample chamber 2, the lower cover 18 is rotated to abut against the fixed block 32, and the sealing head 19 extends into the slot 33, which can restrict the position of the lower cover 18 and prevent the lower cover 18 from rotating and changing its position at will.

[0019] Specifically, such as Figure 5 As shown, the positioning component includes a movable block 21 slidably connected to an L-shaped bent rod 5. The movable block 21 has a circular hole 23. The upper cover block 9 has a notch 12 that matches the movable block 21. The side block 4 has a slot 13, and a locking block 11 that engages with the slot 13 is fixed on the upper cover block 9. The movable block 21 remains in contact with the side block 4 under the action of the limiting component. After the locking block 11 engages with the slot 13, the upper cover block 9 cannot rotate on the sampler 1 under force, thus stabilizing the upper cover block 9.

[0020] Specifically, such as Figure 1 and Figure 5 As shown, the limiting component includes a rotating rod 28 rotatably connected to the L-shaped bent rod 5, and a hemispherical block 30 is fixed at the bottom of the rotating rod 28. A hemispherical groove 25 adapted to the hemispherical block 30 is provided on the moving block 21. A torsion spring 31 is provided on the L-shaped bent rod 5, and one end of the torsion spring 31 is fixed to the L-shaped bent rod 5, and the other end is fixed to the rotating rod 28. The elastic force of the torsion spring 31 pushes the rotating rod 28 to rotate until the bottom bend of the rotating rod 28 is far away from the upper surface of the moving block 21. The hemispherical block 30 is made of corrosion-resistant material. The L-shaped bent rod 5 is provided with a fitting component that restricts the position of the rotating rod 28 and prevents the hemispherical block 30 from disengaging from the hemispherical groove 25.

[0021] When the rotating rod 28 rotates to its bottom and contacts the moving block 21, the positions of the moving block 21 and the upper cover block 9 are fixed. Even if the sample in the sample chamber 2 increases the weight of the sampler 1, the sampler 1 will not undergo vertical relative displacement with the upper cover block 9, effectively avoiding the risk of water sample leakage in the sample chamber 2 caused by the separation of the upper cover block 9 and the sampler 1. When the sampler 1 is inserted into the sampling water area, the liquid water sample in the sampling water area flows into the sample chamber 2. At this time, the moving block 21 is located above the water sample surface in the sampling water area. Therefore, components such as the moving block 21 and the pressure block 26 do not need to be inserted into the water sample.

[0022] Specifically, such as Figure 5 As shown, the mating components include a pressure block 26 slidably connected to an L-shaped bent rod 5, a side groove 22 adapted to the pressure block 26 on a moving block 21, an arc-shaped block 27 fixed on the pressure block 26, and an arc-shaped groove 24 adapted to the arc-shaped block 27 on the side groove 22. A corresponding groove 29 adapted to the arc-shaped block 27 is provided on the rotating rod 28. When the arc-shaped block 27 extends into the arc-shaped groove 24 and the corresponding groove 29, the rotating rod 28 is restricted by the arc-shaped block 27, and even if the rotating rod 28 is subjected to external force, the hemispherical block 30 cannot disengage from the hemispherical groove 25.

[0023] One end of the spring 14 abuts against the bottom of the slider 15, and the other end abuts against the upper surface of the pressure block 26. The elastic force of the spring 14 pushes the slider 15 and the pressure block 26 away from each other. Under the action of the elastic force of the spring 14, when the connecting rod 17 moves upward, the lower cover block 18 abuts against the bottom of the sampler 1, and the sealing head 19 seals the lower opening of the sample chamber 2; or the lower cover block 18 abuts against the bottom of the fixing block 32, and the sealing head 19 extends into the slot 33, which restricts the position of the sealing head 19, effectively preventing the sealing head 19 from rotating randomly under the action of external force, and avoiding accidental damage to the sealing head 19.

[0024] Specifically, such as Figure 1 As shown, the sampler 1 is fixed with multiple evenly distributed filter screens 3. The filter screens 3 are located slightly above the sampler 1 to prevent water samples in the sampler 1 from leaking out of the filter screens 3; or the sampler can be sealed by pressing down on the push rod 7 so that the end block 8 at the lower end of the push rod 7 moves below the filter screen 3.

[0025] In summary, when using the sampling device provided in this embodiment to collect water samples from the sampling area, one hand can control the long vertical sleeve 6 while the other hand lifts the push rod 7 upwards until the end block 8 drives the upper cover block 9 to disengage from the upper opening of the sample chamber 2. At this time, the lower opening of the sample chamber 2 is blocked by the sealing head 19.

[0026] The device is placed in the sampling water area until the water sample enters the sample chamber 2 through the filter screen 3. Then, the control of the push rod 7 is released, and the device is lifted out of the sampling water area using only the long vertical sleeve 6. If the device is lifted by pushing the push rod 7 at this point, the sample chamber 2, being full of water sample, increases the weight of the sampler 1. Therefore, the spring force of the spring 14 may be insufficient to support the upper cover block 9 in stably sealing the sample chamber 2, resulting in vertical relative movement between the upper cover block 9, the push rod 7, and the sampler 1. In this case, there is a risk of water sample leakage from the sample chamber 2.

[0027] Based on this, by lifting the long vertical sleeve 6 upwards, the pressure block 26 is pushed upwards with a finger, causing the pressure block 26 to disengage from the moving block 21. At this time, other fingers can be used to push the rotating rod 28 to rotate until the bottom bend of the rotating rod 28 moves above the moving block 21, and the hemispherical block 30 extends into the hemispherical groove 25. At this time, the upward lifting force on the pressure block 26 is released, and under the elastic force of the spring 14, the pressure block 26 moves to fit against the side groove 22, and the arc-shaped block 27 engages with the arc-shaped groove 24 and the corresponding groove 29. At this time, the position of the rotating rod 28 is fixed, and the rotating rod 28 plays the role of supporting the moving block 21, so that the moving block 21 can remain in contact with the side block 4. At this time, the upper cover block 9 cannot undergo vertical relative displacement with the sampler 1 under the weight of the water sample in the sample chamber 2.

[0028] The filtration effect of the filter screen 3 prevents accidental impurities from mixing into the water sample in the sample chamber 2. Applying force to the slider 15 via the handle 20 causes the slider 15 to move downwards, resulting in the sealing head 19 disengaging from the lower opening of the sample chamber 2 as the connecting rod 17 moves downwards. Rotating the slider 15 aligns the sealing head 19 with the slot 33. Releasing the force on the connecting rod 17 allows the connecting rod 17 and the sealing head 19 to move upwards together under the elastic force of the spring 14 until the sealing head 19 extends into the slot 33, at which point the position of the sealing head 19 is fixed.

[0029] While keeping the position of the long vertical sleeve 6 unchanged, rotate the push rod 7. The locking block 11 at the bottom of the upper cover block 9 engages with the locking groove 13 on the side block 4, thus preventing the upper cover block 9 from rotating under force. Since the end block 8 at the end of the push rod 7 is connected to the screw hole 10 by a thread, the push rod 7 moves downward during rotation, that is, the end block 8 moves downward, pushing the water sample in the sample chamber 2 downward and detaching it from the sample chamber 2. The staff can then remove the water sample through a container for subsequent sample testing.

[0030] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water quality sampler, characterized in that, include: Sampler (1), sample chamber (2) is provided on the sampler (1), side block (4) is fixed on the outer wall of the sampler (1), and L-shaped bent rod (5) is fixed on the side block (4). Long vertical sleeve (6) is fixed at the end of the L-shaped bent rod (5), and push rod (7) is slidably connected inside the long vertical sleeve (6). End block (8) is fixed at the bottom of the push rod (7). The upper cover block (9) blocks the upper opening of the sample chamber (2), and the upper cover block (9) is provided with a screw hole (10) that is connected to the end block (8) by a thread. The side block (4) is provided with a positioning component for positioning the upper cover block (9). The slider (15) has a vertical hole (16) that is slidably connected to the L-shaped bent rod (5), and the slider (15) is fixedly connected to a connecting rod (17). The connecting rod (17) is fixedly fitted with a lower cover block (18) that abuts against the bottom opening of the sample chamber (2), and the lower cover block (18) is fixedly fitted with a sealing head (19) that fits against the inner wall of the sample chamber (2). The L-shaped bent rod (5) is fitted with a spring (14). Fixed block (32): A fixed block (32) is fixed on the outer wall of the sampler (1), and a slot (33) adapted to the sealing head (19) is provided on the fixed block (32).

2. A water quality sampler according to claim 1, characterized in that, The positioning component includes a movable block (21) slidably connected to an L-shaped bent rod (5), a circular hole (23) is provided on the movable block (21), a notch (12) adapted to the movable block (21) is provided on the upper cover block (9), a slot (13) is provided on the side block (4), and a locking block (11) that engages with the slot (13) is fixed on the upper cover block (9). The movable block (21) is kept in contact with the side block (4) under the action of the limiting component.

3. A water quality sampler according to claim 2, characterized in that, The limiting component includes a rotating rod (28) rotatably connected to an L-shaped bent rod (5), and a hemispherical block (30) is fixed at the bottom of the rotating rod (28). The moving block (21) is provided with a hemispherical groove (25) that matches the hemispherical block (30). The L-shaped bent rod (5) is provided with a torsion spring (31), and one end of the torsion spring (31) is fixed to the L-shaped bent rod (5), and the other end is fixed to the rotating rod (28). The hemispherical block (30) is made of corrosion-resistant material. The L-shaped bent rod (5) is provided with a fitting component that restricts the position of the rotating rod (28) and prevents the hemispherical block (30) from disengaging from the hemispherical groove (25).

4. A water quality sampler according to claim 3, characterized in that, The fitting components include a pressure block (26) slidably connected to an L-shaped bent rod (5), a side groove (22) adapted to the pressure block (26) on the moving block (21), an arc-shaped block (27) fixed on the pressure block (26), and an arc-shaped groove (24) adapted to the arc-shaped block (27) on the side groove (22), and a corresponding groove (29) adapted to the arc-shaped block (27) on the rotating rod (28).

5. A water quality sampler according to claim 4, characterized in that, The sampler (1) is fixed with multiple uniformly distributed filter openings (3), and one end of the filter opening (3) is flush with the inner wall of the sample chamber (2), while the other end is located on the outer wall of the sampler (1) and in contact with the air.

6. A water quality sampler according to claim 4, characterized in that, One end of the spring (14) abuts against the bottom of the slider (15), and the other end abuts against the upper surface of the pressure block (26).

7. A water quality sampler according to claim 3, characterized in that, The elastic force of the torsion spring (31) pushes the rotating rod (28) to rotate until the bottom bend of the rotating rod (28) is away from the upper surface of the moving block (21).

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