Water quality detection sampling device

Abstract

The utility model discloses a water quality detection sampling device which comprises a sampling rod, an inner cavity of the sampling rod is in sliding connection with a telescopic rod, and one side of the sampling rod is fixedly connected with a sampling mechanism; the sampling mechanism comprises a winding roll, a rope is wound in an inner cavity of the winding roll, a line concentration roll is arranged at the bottom of the winding roll, one side of the line concentration roll is rotationally connected with the mounting plate, a control line is wound on the line concentration roll, the line concentration roll is further provided with a clockwork spring for automatically winding the control line, the other side of the rope is fixedly connected with a movable frame, and the bottom of the movable frame is movably connected with a sampling bottle; the top of the sampling bottle is movably connected with a bottle cap, the bottom of the sampling bottle is in threaded connection with a bottle body and is communicated with the bottle body, the top of the bottle cap is movably connected with the control line, the top of the bottle cap is fixedly connected with a guide rod, the guide rod can movably penetrate through the cross beam of the movable frame, and a reset spring penetrates through the guide rod and is arranged between the cross beam and the bottle cap. The sampling device solves the problem that a traditional device cannot collect representative water samples with different depths.

Description

Technical Field

[0001] This utility model belongs to the field of water quality testing technology, and in particular relates to a water quality testing sampling device. Background Technology

[0002] With the rapid development of modern agriculture, irrigation, as a key link in ensuring crop growth, has received increasing attention for its water quality. The quality of irrigation water directly affects crop yield, quality, and soil ecological health. High-quality irrigation water can provide crops with sufficient nutrients and promote their vigorous growth, while poor-quality water containing excessive harmful substances, such as heavy metals, pesticide residues, and pathogens, will not only inhibit the normal development of crops, leading to reduced yields or even crop failure, but may also cause soil compaction and decreased fertility, posing a serious threat to the sustainable development of agriculture.

[0003] To accurately control the quality of irrigation water, water quality testing is an essential step. In the water quality testing process, water sampling is the first and most fundamental task. Traditional sampling methods are often rudimentary, such as scooping water directly with a bucket. This method not only makes it difficult to collect representative water samples from different depths, but also easily introduces impurities during the sampling process, affecting the accuracy of the test results. In addition, in some complex aquatic environments, such as narrow irrigation ditches and deep reservoirs, conventional sampling tools are inconvenient to operate and cannot meet the actual needs.

[0004] To address these issues, we provide a water quality testing and sampling device. Utility Model Content

[0005] The purpose of this invention is to provide a water quality testing and sampling device. Through the cooperation of the sampling mechanism and the telescopic rod, it solves the problem that existing water quality testing and sampling devices cannot collect representative water samples at different depths and are not suitable for complex aquatic environments.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a water quality testing and sampling device, comprising a sampling rod, a telescopic rod slidably connected to the inner cavity of the sampling rod, and a sampling mechanism fixedly connected to one side of the sampling rod; the sampling mechanism includes a winding reel, a rope wound inside the winding reel, a cable collector at the bottom of the winding reel, a control line wound on the cable collector, the rope and control line being guided to the front end of the sampling rod, the cable collector also having a spring for automatically winding the control line, a movable frame fixedly connected to the other side of the rope, a sampling bottle movably connected to the bottom of the movable frame, a bottle cap movably connected to the top of the sampling bottle, a bottle body threadedly connected to and communicating with the bottom of the sampling bottle, a control line movably connected to the top of the bottle cap, a guide rod fixedly connected to the top of the bottle cap, the guide rod being movably inserted through the crossbeam of the movable frame, a return spring inserted inside the guide rod, and the return spring being disposed between the crossbeam and the bottle cap.

[0008] Preferably, the surface of the rope is provided with scale markings.

[0009] Preferably, a handle is provided on one side of the mounting plate, and one side of the handle is fixedly connected to the sampling rod. The handle can provide some protection for the hand and reduce the injury to the hand caused by collision.

[0010] Preferably, an anti-slip sleeve is provided on one side of the handle. The inner cavity of the anti-slip sleeve is fixedly connected to the sampling rod. The anti-slip sleeve is made of rubber, which can increase the friction between it and the hand and prevent the device from falling and being damaged due to slipping.

[0011] Preferably, a first limiting plate is fixedly connected to one side of the sampling rod, a second limiting plate is fixedly connected to one side of the telescopic rod, and the other side of the rope and control line both pass through the inner cavities of the first and second limiting plates, which can restrict the movement of the rope and control line.

[0012] Preferably, the bottom of the sampling bottle is provided with a counterweight, one side of which is fixedly connected to the bottle body. There are four counterweights, which can ensure the balance of the bottle body in the water and enable it to descend vertically.

[0013] Preferably, the sampling rod has a damping sleeve inside, and the inner cavity of the damping sleeve is fixedly connected to the telescopic rod. The damping sleeve ensures that the telescopic rod can only be stretched manually, preventing it from automatically retracting into the sampling rod due to external factors.

[0014] Preferably, a slider is fixedly connected to one side of the telescopic rod, and a groove is provided in the inner cavity of the sampling rod. One side of the slider is slidably connected to the groove. There are four sliders and four grooves, which can limit the movement mode and range of motion of the telescopic rod and prevent the telescopic rod from rotating, causing the rope and control line to become entangled with it.

[0015] Preferably, a connecting rod is movably connected to the top of the sampling bottle, the top of the connecting rod is fixedly connected to the bottle cap, a filter screen is fixedly connected to the inner cavity of the sampling bottle, a limiting groove is opened on the top of the bottle cap, the bottom of the connecting rod is slidably connected to the limiting groove, and limiting blocks are provided on both the bottom of the connecting rod and the top of the inner cavity of the limiting groove to prevent the bottle cap from detaching from the sampling bottle due to excessive contraction of the control line. The filter screen can screen the water about to enter the bottle and filter out impurities and large particles.

[0016] The present invention has the following beneficial effects.

[0017] 1. The sampling mechanism of this utility model solves the problem that traditional devices cannot collect representative water samples at different depths, enabling it to accurately obtain water samples at different depths. The control line and bottle cap design allow users to manually operate the control line to ensure that the bottle cap is opened only at the target depth, avoiding contact with the upper water layer during sinking or floating, thereby accurately obtaining samples from specific water layers and improving the representativeness of monitoring data. Furthermore, both the reel and the cable collector are manually driven, requiring no electricity or complex machinery, making it suitable for field, high-flow-rate, or power-free environments. The sampling depth can also be adjusted by the rope length to meet different monitoring needs.

[0018] 2. The telescopic rod and sampling rod of this utility model enable the device to be adapted to different aquatic environments. For different scenarios such as irrigation channels, reservoirs, or groundwater wells, the rod length can be adjusted in real time according to the actual water surface width to ensure that the sampling bottle accurately reaches the target water surface. It is especially suitable for areas with frequent water level fluctuations. After being adjusted to the appropriate length, the sampling bottle can smoothly reach the target position. The damping sleeve ensures that the telescopic rod can only be moved by manual extension, preventing the telescopic rod from automatically retracting into the sampling rod during sampling, which would affect the accuracy of the sampling work. The filter screen can effectively filter out large particles of impurities such as silt, plant debris, and algae in the water, preventing them from entering the sampling bottle and interfering with subsequent testing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a three-dimensional view of a water quality testing and sampling device.

[0021] Figure 2 This is a three-dimensional diagram of the sampling mechanism in a water quality testing and sampling device.

[0022] Figure 3 This is an enlarged view of point A in a water quality testing and sampling device.

[0023] Figure 4This is a schematic diagram showing the connection between the telescopic rod and the sampling rod in a water quality testing and sampling device.

[0024] Figure 5 This is a three-dimensional view of a sampling bottle in a water quality testing and sampling device.

[0025] In the attached diagram: 1. Sampling rod; 2. Telescopic rod; 3. Sampling mechanism; 301. Mounting plate; 302. Winding reel; 303. Rope; 304. Cable reel; 305. Control line; 306. Spring; 307. Movable frame; 308. Sampling bottle; 309. Bottle cap; 310. Bottle body; 311. Guide rod; 312. Return spring; 4. Handle; 5. Anti-slip sleeve; 6. First limiting plate; 7. Second limiting plate; 8. Counterweight; 9. Damping sleeve; 10. Sliding block; 11. Slide groove; 12. Connecting rod; 13. Filter screen. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5This utility model is a water quality testing and sampling device, including a sampling rod 1, a telescopic rod 2 slidably connected to the inner cavity of the sampling rod 1, a sampling mechanism 3 fixedly connected to one side of the sampling rod 1, the sampling mechanism 3 including a mounting plate 301, one side of the mounting plate 301 fixedly connected to the sampling rod 1, and a winding reel 302 rotatably connected to the other side of the mounting plate 301. A rope 303 is wound in the inner cavity of the winding reel 302, and a collecting reel 304 is provided at the bottom of the winding reel 302. One side of the collecting reel 304 is rotatably connected to the mounting plate 301, and a control line 305 is wound in the collecting reel 304. The rope 303 and the control line 305 are guided to the front end of the sampling rod 1. The collecting reel 304 is provided with a spring 306 for automatically winding the control line. A movable frame 307 is fixedly connected to the other side of the rope 303. A sampling bottle 308 is movably connected to the bottom of the movable frame 307, and a bottle cap 309 is movably connected to the top of the sampling bottle 308. The bottom of the sampling bottle 308 is threaded... A bottle body 310 is attached, and the top of the bottle cap 309 is movably connected to the control line 305. The end of the control line 305 can be movably connected to the bottle cap 309 using a hook. Of course, to prevent the hook from detaching, a closed-loop buckle can also be used to movably connect to the bottle cap 309. A guide rod 311 is fixedly connected to the top of the bottle cap 309. A guide hole is provided on the crossbeam of the movable frame 307 for the guide rod 311 to pass through. The guide rod 311 passes through the guide hole, and a limit block is provided at the end of the guide rod 311 corresponding to the crossbeam. A return spring 312 passes through the guide rod 311. The return spring 312 is located between the crossbeam and the bottle cap 309. One end of the return spring 312 is fixedly connected to the bottle cap 309, and the other end of the return spring 312 abuts against the bottom of the crossbeam to press the bottle cap 309 onto the sampling bottle 308, so that the bottle cap 309 has a sealing state of pressing onto the sampling bottle 308 and a collection state spaced apart from the sampling bottle 308. It is important to note that, to prevent the sampling bottle 308 from being pulled upwards while the control line 305 is being pulled, the length of the control line 305 pulled after reaching the target water level should not be too long. The tautness of the rope 303 should be used as a judgment indicator; when pulling the control line 305 causes the rope 303 to become slightly loose, further stretching of the control line 305 should be stopped to minimize water level errors. In practical applications, adjustments can be made based on the counterweight of the sampling bottle 308 and the elastic coefficient of the return spring 312.

[0028] Specifically: The two ends of the spring 306 are connected to the central shaft of the cable reel 304 and the cable reel 304, respectively. A handle is fixedly connected to one side of the cable reel 302 to control the winding of the rope 303 by the cable reel 302. This allows the operator to control the sampling bottle 308 to rise or fall by turning the handle, improving the convenience of the sampling mechanism 3. One side of the control line 305 passes through the top of the movable frame 307 and is fixedly connected to a hook or an openable hanging ring. The bottom of the hook is movably connected to the bottle cap 309, preventing the sampling bottle 308 from tilting due to force on one side of the bottle cap 309, which would prevent the bottle cap 309 from being opened to obtain the water sample. The top of the inner cavity of the sampling bottle 308 is funnel-shaped, making the bottle... After the cap 309 is opened, water can quickly flow into the bottle 310, improving the efficiency of the sampling work. The surface of the rope 303 is marked with meters so that the operator can observe the rope 303 to know the depth reached by the sampling bottle 308. A support block is fixedly connected to one side of the movable frame 307. One side of the support block is arc-shaped and fits against the control line 305, so that the control line 305 has a support point when it is wound up, so that the hook is subjected to a vertical upward force. The top of the guide rod 311 passes through the bottom of the movable frame 307 and extends to the top of the movable frame 307. The bottle 310 is connected to the sampling bottle so that the staff can rotate the bottle 310 to take out the water sample inside.

[0029] Please see Figure 1-5 Based on the above implementation, a handle 4 is provided on one side of the mounting plate 301, and one side of the handle 4 is fixedly connected to the sampling rod 1. An anti-slip sleeve 5 is provided on one side of the handle 4, and the inner cavity of the anti-slip sleeve 5 is fixedly connected to the sampling rod 1. A first limiting plate 6 is fixedly connected to one side of the sampling rod 1, and a second limiting plate 7 is fixedly connected to one side of the telescopic rod 2. A counterweight 8 is provided at the bottom of the sampling bottle 308, and one side of the counterweight 8 is fixedly connected to the bottle body 310. A damping sleeve 9 is provided in the inner cavity of the sampling rod 1, and the inner cavity of the damping sleeve 9 is fixedly connected to the telescopic rod 2. A slider 10 is fixedly connected to one side of the telescopic rod 2. A sliding groove 11 is opened in the inner cavity of the sampling rod 1 along the axial direction, and one side of the slider 10 is slidably connected to the sliding groove 11 to avoid the rope from getting tangled when the telescopic rod 2 rotates. A connecting rod 12 is movably connected to the top of the sampling bottle 308, and the top of the connecting rod 12 is fixedly connected to the bottle cap 309. A filter screen 13 is fixedly connected to the inner cavity of the sampling bottle 308.

[0030] Specifically: the handle 4 provides some protection for the hand, reducing injury from collisions; the anti-slip sleeve 5 is made of rubber, increasing friction with the hand and preventing the device from slipping and falling; the rope 303 and control line 305 pass through the inner cavities of the first limiting plate 6 and the second limiting plate 7 on the other side, restricting their movement; two guide tubes are provided on the front of the second limiting plate 7 for the rope 303 and control line 305 to pass through; four counterweights 8 ensure the balance of the bottle 310 in the water, allowing it to descend vertically; the damping sleeve 9 ensures that the telescopic rod 2 can only be stretched manually, preventing it from automatically retracting into the sampling rod 1 due to external factors; four sliders 10 and four grooves 11 restrict the movement and range of motion of the telescopic rod 2, preventing it from rotating and causing the rope 303 and control line 305 to become entangled. A limiting groove is provided on the bottom surface of the bottle cap 309, and a connecting rod 12 is provided on the top surface of the sampling bottle 308. The connecting rod 12 is slidably connected to the limiting groove, and a limiting block is provided at the end of the connecting rod 12 located in the limiting groove to prevent the bottle cap 309 from detaching from the sampling bottle 308 due to excessive contraction of the control line 305. The filter screen 13 can screen the water that is about to enter the bottle body 310 and filter out impurities and large particles.

[0031] The working principle of this utility model is as follows: During use, the operator pulls the telescopic rod 2 to one side. The damping sleeve 9 increases the friction between the telescopic rod 2 and the sampling rod 1, causing the telescopic rod 2 to move slowly to one side. This prevents the telescopic rod 2 from automatically retracting due to external factors during sampling. The length of the telescopic rod 2 can be adjusted according to the width of different water areas. After adjusting to the appropriate length, the handle is manually turned. The handle drives the winding reel 302 to rotate, releasing the rope 303. The rope 303 is then released through the first limiting plate 6 and the second limiting plate 7. After preparation, it will follow the sampling bottle 308 vertically downwards. Under the action of the counterweight 8, the sampling bottle 308 will enter the water vertically. The sampling bottle 308 will cause the bottle body 310 and the bottle cap 309 to sink. The bottle cap 309 will cause the hook to sink, and the hook will cause the control line 305 to sink. The control line 305 will cause the coil 304 to rotate, and the coil 304 will cause the spring 306 to rotate. At this time, the spring 306 is wound up and stores torque. However, because the weight of the counterweight 8 is greater than the tension of the spring 306, and under the action of the return spring 312, the bottle cap 309 will sink. 09 will not be pulled up by the tension of the spring 306 during descent, allowing the bottle cap 309 to release the control line 305 and rope 303 synchronously. After reaching the designated depth, the operator manually pulls back the control line 305, and the cable reel 304 rotates to wind the control line 305. The control line 305 is located at the top center of the bottle cap 309 via the hook, and under the action of the support block, the bottle cap 309 is subjected to a vertical upward force, causing it to open and successfully obtain the water sample. The upward movement of the bottle cap 309 drives the guide rod 311 to move, at which point the return spring 3... When the device is in a compressed state (12), and sufficient water sample is collected, the operator releases the control line 305. The reset spring 312 automatically resets and presses the bottle cap 309 downwards to close it. The bottle cap 309 drives the control line 305 to descend, and the control line 305 drives the cable reel 304 to rotate. After the bottle cap 309 is closed, the cable reel 302 rotates in the opposite direction. The cable reel 302 drives the sampling bottle 308 to rise. When the sampling bottle 308 rises, the torque released by the spring 306 drives the cable reel 304 to rotate, so that the control line 305 is wound up synchronously with the rope 303.

[0032] This utility model has the following beneficial effects:

[0033] 1. The sampling mechanism of this utility model solves the problem that traditional devices cannot collect representative water samples at different depths, enabling it to accurately obtain water samples at different depths. The control line and bottle cap design allow users to manually operate the control line to ensure that the bottle cap is opened only at the target depth, avoiding contact with the upper water layer during sinking or floating, thereby accurately obtaining samples from specific water layers and improving the representativeness of monitoring data. Furthermore, both the reel and the cable collector are manually driven, requiring no electricity or complex machinery, making it suitable for field, high-flow-rate, or power-free environments. The sampling depth can also be adjusted by the rope length to meet different monitoring needs.

[0034] 2. The telescopic rod and sampling rod of this utility model enable the device to be adapted to different aquatic environments. For different scenarios such as irrigation channels, reservoirs, or groundwater wells, the rod length can be adjusted in real time according to the actual water surface width to ensure that the sampling bottle accurately reaches the target water surface. It is especially suitable for areas with frequent water level fluctuations. After being adjusted to the appropriate length, the sampling bottle can smoothly reach the target position. The damping sleeve ensures that the telescopic rod can only be moved by manual extension, preventing the telescopic rod from automatically retracting into the sampling rod during sampling, which would affect the accuracy of the sampling work. The filter screen can effectively filter out large particles of impurities such as silt, plant debris, and algae in the water, preventing them from entering the sampling bottle and interfering with subsequent testing.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A water quality detection sampling device comprising a sampling rod, characterized in that: The sampling rod inner cavity is slidably connected with a telescopic rod, and one side of the sampling rod is fixedly connected with a sampling mechanism. The sampling mechanism comprises a winding reel, the winding reel inner cavity winds a rope, the winding reel bottom is provided with a winding disc, the winding disc winds a control line, the rope and the control line are guided to the front end of the sampling rod, the winding disc is further provided with a clock spring for automatically winding the control line, the other side of the rope is fixedly connected with a movable frame, the movable frame bottom is movably connected with a sampling bottle, the sampling bottle top is movably connected with a bottle cap, the sampling bottle bottom is threadedly connected with a bottle body and communicates with the bottle body, the bottle cap top is movably connected with the control line, the bottle cap top is fixedly connected with a guide rod, the guide rod can movably pass through a cross beam of the movable frame, the guide rod internally passes through a reset spring, and the reset spring is arranged between the cross beam and the bottle cap.

2. The water quality detection sampling device according to claim 1, characterized in that: The rope surface is provided with scale marks.

3. The water quality detection sampling device according to claim 1, characterized in that: The sampling mechanism further comprises a mounting plate, one side of the mounting plate is provided with a handle, and one side of the handle is fixedly connected with the sampling rod.

4. The water quality detection sampling device according to claim 3, characterized in that: One side of the handle is provided with an anti-skid sleeve, and the anti-skid sleeve inner cavity is fixedly connected with the sampling rod.

5. The water quality detection sampling device according to claim 1, characterized in that: One side of the sampling rod is fixedly connected with a first limiting plate, and one side of the telescopic rod is fixedly connected with a second limiting plate.

6. The water quality detection sampling device according to claim 1, characterized in that: The sampling bottle bottom is provided with a counterweight, and one side of the counterweight is fixedly connected with the bottle body.

7. The water quality detection sampling device according to claim 1, characterized in that: The sampling rod inner cavity is provided with a damping sleeve, and the damping sleeve inner cavity is fixedly connected with the telescopic rod.

8. The water quality detection sampling device according to claim 1, characterized in that: One side of the telescopic rod is fixedly connected with a sliding block, and the sampling rod inner cavity is provided with a sliding groove, and one side of the sliding block is slidably connected with the sliding groove.

9. The water quality detection sampling device according to claim 1, characterized in that: The sampling bottle top is movably connected with a connecting rod, the connecting rod top is fixedly connected with the bottle cap, and the sampling bottle inner cavity is fixedly connected with a filter screen.

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