Multi-depth-adjustable water quality detection sampling device

Abstract

The utility model discloses a kind of water quality detection sampling devices of multiple depth adjustment, more specifically in water quality detection sampling technical field, including sampling box, multiple liquid storage cavities are opened in the inside of sampling box, water pumping mechanism is provided on sampling box, the upper end of sampling box is equipped with top plate, multiple sliding baffle are slidably connected on top plate, the upper end of sliding baffle is equipped with upper limit plate, the lower end of sliding baffle is equipped with lower limit plate, the surface of upper limit plate is equipped with connecting ring, nylon rope is wound on connecting ring.The utility model ball floats in respective setting depth by water buoyancy, corresponding sliding baffle is pulled up by nylon rope, triggers locking assembly release piston plate, depth sampling is completed by power component drive, so that each sampling point depth is non-fixed, can be flexibly set by on-site adjustment nylon rope length of winding, and gas in ball can be adjusted by filling and discharging buoyancy, multiple sampling depth adjustment function is realized.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing and sampling technology, and more specifically, to a water quality testing and sampling device with multi-depth adjustment. Background Technology

[0002] The large-scale discharge of harmful substances from wastewater, sewage, and solid waste has led to severe pollution of rivers and other surface waters. In response to this situation, it is necessary to install water quality monitoring devices for detection, which requires the use of sampling devices to take samples from the target water areas.

[0003] Common multi-depth adjustable water quality testing sampling devices can only sample areas at a specified water depth, but lack the function of adjusting multiple sampling depths. In practical applications, when the sampling box is placed in the water and sinks, its inlet will open to perform sampling operations whenever it sinks to a fixed water depth. Since the sampling water depth is fixed, it is impossible to flexibly adjust the specific sampling depth according to the actual situation of the water body, which ultimately leads to the problem of missing key water layers when collecting water samples.

[0004] In summary, to ensure the accuracy of sampling, it is necessary to address the issue of the inability to adjust the sampling depth, allowing for flexible adjustment of the sampling depth based on the actual conditions of the water body. Utility Model Content

[0005] The present invention provides a water quality testing and sampling device with multi-depth adjustment, which aims to solve the problem that: since the water depth for sampling is fixed, it is impossible to flexibly adjust the specific sampling depth according to the actual situation of the water body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-depth adjustable water quality testing and sampling device, including a sampling box, with multiple liquid storage chambers inside the sampling box, a pumping mechanism on the sampling box, a top plate installed at the upper end of the sampling box, multiple sliding baffles slidably connected to the top plate, an upper limit plate installed at the upper end of the sliding baffles, a lower limit plate installed at the lower end of the sliding baffles, a connecting ring installed on the surface of the upper limit plate, a nylon rope wound around the connecting ring, a float ball installed at the end of the nylon rope away from the connecting ring, multiple support frames installed at the lower end of the sampling box, a filter screen installed on the surface of the support frames, and a positioning mechanism provided on the pumping mechanism and the top plate.

[0007] In a preferred embodiment, the pumping mechanism is used to pump water from the water area. The pumping mechanism includes a piston assembly and a power assembly. The piston assembly is used to pump water into the storage chamber by negative pressure, and the power assembly is used to control the upward movement of the piston assembly.

[0008] In a preferred embodiment, the piston assembly includes a piston plate disposed within a plurality of liquid storage chambers, a sealing ring mounted on the outside of the piston plate, and two first connecting blocks mounted on the upper end of the piston plate.

[0009] In a preferred embodiment, the power assembly includes a plurality of second connecting blocks symmetrically mounted on the surface of the sampling box, an elastic rope wound around the second connecting blocks, and a plurality of pulleys rotatably connected to the upper end of the sampling box, with one end of the elastic rope away from the second connecting blocks passing around the pulleys and wound around the first connecting block.

[0010] In a preferred embodiment, a positioning mechanism is used to lock the position of the pumping mechanism. The positioning mechanism includes a reset component and a locking component. The reset component is used to control the downward movement of the piston assembly, and the locking component is used to lock the position of the piston assembly.

[0011] In a preferred embodiment, the reset assembly includes a reset rod mounted on the upper end of the piston plate, a limiting groove formed on the surface of the reset rod, and a handle mounted on the upper end of the reset rod, wherein the reset rod is slidably connected to the top plate.

[0012] In a preferred embodiment, the locking assembly includes a through groove formed on the surface of the sliding baffle, a plurality of fixing strips mounted on the upper end of the top plate, two springs mounted on the side of the fixing strips near the sliding baffle, and a limiting plate mounted on the end of the springs away from the fixing strips. The end of the limiting plate near the reset rod is inserted into the limiting groove, and the end of the limiting plate away from the reset rod is in contact with the sliding baffle.

[0013] In a preferred embodiment, the sampling box is provided with a one-way water inlet assembly, which is used to supply water flow into the liquid storage chamber in one direction. The one-way water inlet assembly includes multiple water inlet grooves opened at the lower end of the sampling box, multiple one-way sealing grooves opened inside the sampling box, and one-way sealing pads installed inside the one-way sealing grooves.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention allows for customized sampling depth through flexible adjustment of the float and nylon rope. Users can independently set the depth of each sampling location according to the actual conditions of the water body, avoiding the problem of missing key water layers caused by sampling at fixed water depths, and significantly improving the flexibility of stratified monitoring.

[0016] This invention utilizes a one-way water inlet component and filter screen design to ensure the reliability and anti-clogging of the sampling process, increase the water inlet area, ensure smooth sampling, and ultimately improve the overall efficiency of water quality testing and sampling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the sampling box structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the sampling box of this utility model.

[0020] Figure 4 This is a schematic diagram of the multi-depth sampling adjustment component of this utility model.

[0021] Figure 5 This is an exploded view of the positioning mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the pumping mechanism of this utility model.

[0023] The attached diagram is labeled as follows: 1. Sampling box; 11. Liquid storage chamber; 12. Top plate; 13. Sliding baffle; 14. Upper limit plate; 15. Lower limit plate; 16. Connecting ring; 17. Nylon rope; 18. Float; 19. Support frame; 20. Filter screen; 311. Piston plate; 312. Sealing ring; 313. First connecting block; 321. Second connecting block; 322. Elastic rope; 323. Pulley; 411. Reset rod; 412. Limiting groove; 413. Handle; 421. Through groove; 422. Fixing strip; 423. Spring; 424. Limiting insert plate; 511. Water inlet groove; 512. One-way sealing groove; 513. One-way sealing pad. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Refer to the instruction manual appendix Figures 1 to 6 A multi-depth adjustable water quality testing and sampling device includes a sampling box 1, which has multiple liquid storage chambers 11 inside. A pumping mechanism is installed on the sampling box 1. A top plate 12 is installed at the upper end of the sampling box 1. Multiple sliding baffles 13 are slidably connected to the top plate 12. An upper limit plate 14 is installed at the upper end of the sliding baffle 13. A lower limit plate 15 is installed at the lower end of the sliding baffle 13. A connecting ring 16 is installed on the surface of the upper limit plate 14. A nylon rope 17 is wound around the connecting ring 16. A float ball 18 is installed at the end of the nylon rope 17 away from the connecting ring 16. Multiple support frames 19 are installed at the lower end of the sampling box 1. A filter screen 20 is installed on the surface of the support frame 19. A positioning mechanism is provided on the pumping mechanism and the top plate 12.

[0026] It should be noted that when the device sinks, multiple floats 18 will float to their set depth positions due to the buoyancy of the water. The nylon rope 17 pulls the corresponding sliding baffle 13 upward, thereby triggering the locking component to release the corresponding piston plate 311. The sampling at that depth is completed under the action of the power component. The key point is that the depth of each sampling point is no longer fixed and unchangeable, but can be flexibly set on site by adjusting the length of the nylon rope 17 winding. Furthermore, the buoyancy can be adjusted by filling and releasing the gas inside the float 18.

[0027] It is worth noting that the multiple liquid storage chambers 11, sliding baffles 13, floats 18 and related positioning triggering mechanisms are independent of each other. This means that the device can collect water samples from different depths of the same water area simultaneously or at different times, and the depth of each sampling point can be set and adjusted individually, which greatly improves the flexibility of monitoring water stratification pollution. The support frame 19 and filter screen 20 effectively prevent water plants, debris and other objects from clogging the water inlet tank 511, expand the water inlet area and ensure smooth sampling.

[0028] Refer to the instruction manual appendix Figures 1 to 6 The pumping mechanism is used to pump water from the water area. The pumping mechanism includes a piston assembly and a power assembly. The piston assembly is used to pump water into the storage chamber 11 by negative pressure, and the power assembly is used to control the upward movement of the piston assembly.

[0029] It should be noted that the pumping mechanism is passively triggered. The initial position of the piston plate 311 is locked at the bottom of the liquid storage chamber 11 by the positioning mechanism. It is only released at the set depth that the power component drives the piston assembly to rise and pump water. No external power supply or complex drive is required. It relies on the elastic potential energy pre-accumulated in the elastic rope 322 as the power source, which simplifies the operation complexity of the device underwater and improves reliability.

[0030] Refer to the instruction manual appendix Figure 6 The piston assembly includes a piston plate 311 disposed in multiple liquid storage chambers 11, a sealing ring 312 installed on the outside of the piston plate 311, and two first connecting blocks 313 installed on the upper end of the piston plate 311.

[0031] It should be noted that the piston plate 311 is precisely matched to the shape of the liquid storage chamber 11, and the sealing ring 312 installed on its outer side ensures that a reliable dynamic seal is formed between the piston plate 311 and the inner wall of the liquid storage chamber 11. This is a prerequisite for generating effective negative pressure. The first connecting block 313 is the point of action of the elastic rope 322, which transmits the pulling force to the piston plate 311 to make it move upward.

[0032] Refer to the instruction manual appendix Figure 6The power assembly includes multiple second connecting blocks 321 symmetrically mounted on the surface of the sampling box 1, an elastic rope 322 wound around the second connecting blocks 321, and multiple pulleys 323 rotatably connected to the upper end of the sampling box 1. One end of the elastic rope 322 away from the second connecting block 321 passes around the pulley 323 and is wound around the first connecting block 313.

[0033] It should be noted that the power assembly utilizes the energy storage characteristics of the elastic rope 322 to provide the power for the piston plate 311 to rise. One end of the elastic rope 322 is fixed to the second connecting block 321 at a lower position on the side of the sampling box 1, and the other end passes over the pulley 323 on the top plate 12 and is connected to the first connecting block 313 at the upper end of the piston plate 311. In the initial state, the elastic rope 322 is stretched and stores elastic potential energy. When the lock is released, the elastic rope 322 contracts and changes direction through the pulley 323, pulling the piston plate 311 to rise rapidly.

[0034] Refer to the instruction manual appendix Figures 1 to 6 The positioning mechanism is used to lock the position of the pumping mechanism. The positioning mechanism includes a reset component and a locking component. The reset component is used to control the downward movement of the piston assembly, and the locking component is used to lock the position of the piston assembly.

[0035] It should be noted that the core function of the positioning mechanism is to reliably lock the piston plate 311 at the bottom of the liquid storage chamber 11 during the sinking process of the device, and to accurately unlock the corresponding piston assembly after being triggered by the float ball 18 at a set water depth. It consists of a reset assembly and a locking assembly, and its design ensures that the sampling action of each liquid storage chamber 11 is strictly controlled by its corresponding sliding baffle 13.

[0036] It is worth noting that the spring 423 in the locking assembly provides a stable locking force to prevent the piston plate 311 from being released prematurely due to vibration or accidental force during the sinking of the device. The key to the entire mechanism lies in the linkage design between the sliding baffle 13 and the limiting plate 424. The horizontal displacement of the sliding baffle 13 directly controls the locking state of the limiting plate 424 on the reset rod 411.

[0037] Refer to the instruction manual appendix Figure 6 The reset assembly includes a reset rod 411 mounted on the upper end of the piston plate 311, a limiting groove 412 formed on the surface of the reset rod 411, and a handle 413 mounted on the upper end of the reset rod 411. The reset rod 411 is slidably connected to the top plate 12.

[0038] It should be noted that before sampling, press down on the handle 413 to drive the reset rod 411 and piston plate 311 to move downward against the tension of the elastic rope 322 until the locking assembly locks the piston plate 311 at the lower end of the liquid storage chamber 11.

[0039] Refer to the instruction manual appendix Figure 5The locking assembly includes a through groove 421 formed on the surface of the sliding baffle 13, a plurality of fixing strips 422 installed on the upper end of the top plate 12, two springs 423 installed on the side of the fixing strips 422 near the sliding baffle 13, and a limiting plate 424 installed on the end of the springs 423 away from the fixing strips 422. The end of the limiting plate 424 near the reset rod 411 is inserted into the interior of the limiting groove 412, and the end of the limiting plate 424 away from the reset rod 411 is in contact with the sliding baffle 13.

[0040] It should be noted that after the piston plate 311 is pressed down and locked, the limiting plate 424 is pushed to move towards the reset rod 411, so that one end of it is inserted into the limiting groove 412 of the reset rod 411, thereby preventing the reset rod 411 from rising. Then, the sliding baffle 13 is pushed down until the sliding baffle 13 abuts the other end of the limiting plate 424. When the device sinks to the set depth, the corresponding float 18 rises, pulls the nylon rope 17, and drives the sliding baffle 13 to slide upward. After the sliding baffle 13 moves to the position, the through groove 421 is aligned with the limiting plate 424. At this time, the limiting plate 424 is pushed out of the limiting groove 412 by the thrust of the spring 423, releasing the restriction on the rise of the piston assembly.

[0041] Refer to the instruction manual appendix Figure 3 The sampling box 1 is equipped with a one-way water inlet assembly. The one-way water inlet assembly is used to supply water to flow into the liquid storage chamber 11 in one direction. The one-way water inlet assembly includes multiple water inlet grooves 511 opened at the lower end of the sampling box 1, multiple one-way sealing grooves 512 opened inside the sampling box 1, and one-way sealing pads 513 installed inside the one-way sealing grooves 512.

[0042] It should be noted that when the piston plate 311 rises and forms a negative pressure in the liquid storage chamber 11, the external water pressure and negative pressure suction overcome the weight of the one-way sealing pad 513 and the slight deformation resistance, pushing it upward. Water flows into the liquid storage chamber 11 through the water inlet 511 and the one-way sealing groove 512. When the water inlet stops or the device is lifted out of the water, the water pressure in the liquid storage chamber 11 or the weight of the one-way sealing pad 513 causes it to fall back onto the one-way sealing groove 512, sealing the water inlet channel and preventing the water sample from flowing back or leaking.

[0043] Working principle: First, press down the handle 413 at the top of the reset rod 411, causing the piston plate 311 to move downwards to the bottom within the liquid storage chamber 11. At this time, the elastic rope 322 is stretched and stores energy. Then, it pushes the limiting plate 424 into the limiting groove 412 of the reset rod 411, pushing the sliding baffle 13 downwards. The sliding baffle 13 abuts against the limiting plate 424, thereby locking the piston plate 311 in the low position. Next, adjust the winding length of the nylon rope 17 corresponding to each float 18 according to the target water depth. After completing the depth setting, submerge the device in the water. During the descent of the device, when it reaches a preset water depth for a certain float 18, the float 18 rises under buoyancy and pulls the corresponding sliding baffle 13 upward via the nylon rope 17. When the sliding baffle 13 moves upward until its through slot 421 aligns with the limiting plate 424, the limiting plate 424 moves horizontally outward under the thrust of the spring 423, and its inner end disengages from the limiting slot 412 of the reset rod 411, releasing the lock on the piston plate 311. The energy-storing elastic rope 322 immediately contracts and pulls the first connection after changing direction via the pulley 323. Block 313 causes the piston plate 311 to rise rapidly within the liquid storage chamber 11, creating a negative pressure. Under this pressure difference, the external water pushes open the one-way sealing pad 513. Water flows through the filter screen 20 of the support frame 19 to intercept debris, then enters the liquid storage chamber 11 through the inlet tank 511 and the one-way sealing groove 512 to complete sampling. After sampling, the one-way sealing pad 513 falls back to close the one-way sealing groove 512 under gravity and water pressure. When the corresponding liquid storage chamber 11 is full, it increases the weight of the sampling box 1, causing it to sink further, thus causing the corresponding float 18 to... Once the sample box 1 sinks into the water, the other floats 18 that have not reached the preset water depth will continue to float on the surface until the sample box 1 sinks to the water depth corresponding to the other floats 18, at which point the corresponding sampling operation will be triggered. When all the floats 18 are submerged and sink, it means that all the liquid storage chambers 11 are filled. The inflation volume of each float 18 can be supplemented or deflated according to the actual water depth, so as to achieve stratified sampling at different depths. The entire process is achieved by independently adjusting the length of the nylon rope 17 of each float 18 to flexibly customize the sampling depth and ensure accurate collection of key water layers.

[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A multi-depth adjusted water quality detection sampling device, characterized in that, The sample box (1) includes a sampling box (1) with multiple liquid storage chambers (11) inside. A pumping mechanism is provided on the sampling box (1). A top plate (12) is installed on the upper end of the sampling box (1). Multiple sliding baffles (13) are slidably connected on the top plate (12). An upper limit plate (14) is installed on the upper end of the sliding baffle (13). A lower limit plate (15) is installed on the lower end of the sliding baffle (13). A connecting ring (16) is installed on the surface of the upper limit plate (14). A nylon rope (17) is wound around the connecting ring (16). A float ball (18) is installed on the end of the nylon rope (17) away from the connecting ring (16). Multiple support frames (19) are installed on the lower end of the sampling box (1). A filter screen (20) is installed on the surface of the support frame (19). A positioning mechanism is provided on the pumping mechanism and the top plate (12).

2. The multi-depth-adjustable water quality detection sampling device according to claim 1, wherein, The pumping mechanism is used to pump water from the water area. The pumping mechanism includes a piston assembly and a power assembly. The piston assembly is used to pump water into the storage chamber (11) by negative pressure, and the power assembly is used to control the upward movement of the piston assembly.

3. The multi-depth-adjustable water quality detection sampling device according to claim 2, wherein, The piston assembly includes a piston plate (311) disposed in multiple liquid storage chambers (11), a sealing ring (312) mounted on the outside of the piston plate (311), and two first connecting blocks (313) mounted on the upper end of the piston plate (311).

4. The multi-depth-adjustable water quality detection sampling device according to claim 3, wherein, The power assembly includes a plurality of second connecting blocks (321) symmetrically mounted on the surface of the sampling box (1), an elastic rope (322) wound around the second connecting blocks (321), and a plurality of pulleys (323) rotatably connected to the upper end of the sampling box (1). The end of the elastic rope (322) away from the second connecting block (321) passes around the pulley (323) and is wound around the first connecting block (313).

5. The multi-depth-adjustable water quality detection sampling device according to claim 4, wherein, The positioning mechanism is used to lock the position of the pumping mechanism. The positioning mechanism includes a reset component and a locking component. The reset component is used to control the downward movement of the piston assembly, and the locking component is used to lock the position of the piston assembly.

6. The multi-depth-adjustable water quality detection sampling device according to claim 5, wherein, The reset assembly includes a reset rod (411) mounted on the upper end of the piston plate (311), a limiting groove (412) formed on the surface of the reset rod (411), and a handle (413) mounted on the upper end of the reset rod (411). The reset rod (411) is slidably connected to the top plate (12).

7. The multi-depth-adjustable water quality detection sampling device according to claim 6, wherein, The locking assembly includes a through groove (421) formed on the surface of the sliding baffle (13), a plurality of fixing strips (422) installed on the upper end of the top plate (12), two springs (423) installed on the side of the fixing strips (422) near the sliding baffle (13), and a limiting plate (424) installed on the end of the springs (423) away from the fixing strips (422). The end of the limiting plate (424) near the reset rod (411) is inserted into the interior of the limiting groove (412), and the end of the limiting plate (424) away from the reset rod (411) is in contact with the sliding baffle (13).

8. The multi-depth-adjustable water quality detection sampling device according to claim 1, wherein, The sampling box (1) is equipped with a one-way water inlet assembly. The one-way water inlet assembly is used to supply water flow into the liquid storage chamber (11) in one direction. The one-way water inlet assembly includes multiple water inlet grooves (511) opened at the lower end of the sampling box (1), multiple one-way sealing grooves (512) opened inside the sampling box (1), and one-way sealing pads (513) installed inside the one-way sealing grooves (512).

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