A collection device for surface water detection

Abstract

This utility model relates to the field of sampling equipment technology, specifically a surface water sampling device. It includes a pushing assembly comprising a sampling rod, a servo motor fixedly mounted at the top of the sampling rod, and a support assembly fitted onto the bottom of the servo motor. The support assembly includes an annular base fitted onto the bottom of the annular base, with four corners of a limiting seat threaded onto the support rod. A connecting rod is hinged between the limiting seat and the gripping seat. A filtering assembly includes a sealing box, with a pump unit mounted at the bottom of the sealing box. A filter sleeve is fitted onto the bottom of the pump unit, and a spiral filter plate is fitted onto the outer wall of the bottom end of the pump unit. This utility model, through precise control of the servo motor, ensures that the sampling rod accurately reaches the predetermined water sample collection position. The coordinated operation of the annular base, square fixing seat, gripping seat, support rod, limiting seat, and connecting rod allows the device to remain stable on uneven terrain.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, and in particular to a sampling device for surface water detection. Background Technology

[0002] Surface water refers to the total amount of dynamic and static water on the land surface, also known as "terrestrial water". It includes various liquid and solid water bodies, mainly rivers, lakes, swamps, glaciers, ice caps, etc. Water quality sampling and testing is an indispensable step in water quality monitoring, especially for water quality monitoring of domestic water and monitoring of sewage discharge standards.

[0003] Existing technology, such as the surface water detection sampling device disclosed in patent number CN223192617U, includes a sampling rod, with a first guide roller installed at one end and a handle installed at the other end. A through hole is provided inside the sampling rod near the handle. This invention utilizes the cooperation of a pull ring and a locking ring to limit the movement of the piston rod and the pull block. When the upper side of the connecting rope moves to the left, the lower side of the connecting rope pulls the pull ring to the right, causing the pull ring to pull the piston rod synchronously. This allows the pumping pipe to pump water from the water below, drawing the water sample into the collection cylinder for temporary storage. The sampling operation is simple and convenient. Simultaneously, the use of an L-shaped movable plate, a ring rope, and a fixed rod allows for limiting and fixing the pulling distance and position of the connecting rope, thereby ensuring the stability of the collection cylinder. The sampling is stable, but this scheme has the problem of insufficient reliability in fixing the L-shaped movable plate. Although the L-shaped movable plate is fixed by the mutual attraction of the first and second magnetic blocks, as well as the ring rope and fixing rod, in actual use, the attraction of the magnetic blocks may be weakened by environmental factors such as temperature and humidity, resulting in the L-shaped movable plate not being firmly fixed. This, in turn, affects the limiting and fixing effect of the moving distance of the connecting rope, reduces the stability of water sample collection, and the connection between the pull ring and the piston rod is prone to loosening: the pull ring is sleeved on the outside of the piston rod and is prevented from detaching by pulling down the locking ring. However, this connection method is not stable enough. During the process of pulling the connecting rope to make the pull ring pull the piston rod, the locking ring may loosen due to excessive pulling force or improper operation, causing the pull ring to detach from the piston rod, affecting the normal sampling process. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: A surface water sampling device includes a pushing assembly comprising a sampling rod and a servo motor. The servo motor is fixedly mounted on the top of the sampling rod, and a support assembly is sleeved on the bottom of the servo motor. The support assembly includes an annular base, a square fixing seat, a gripping seat, a support rod, a limiting seat, and a connecting rod. The annular base is sleeved on the bottom of the sampling rod. Several sets of square fixing seats are welded to the periphery of the annular base. A telescopic rod is fixedly mounted inside the annular base. The gripping seat is fixedly mounted on the top of the telescopic rod. One end of several sets of support rods is fixedly mounted on the upper surface of the annular base. The four corners of the limiting seat are threaded to the support rod. The connecting rod is hinged between the limiting seat and the gripping seat. A filter assembly is fixedly mounted on the bottom of the sampling rod. The filter assembly includes a sealing box. A pump unit is mounted on the bottom of the sealing box. A filter sleeve is sleeved on the bottom of the pump unit. A spiral filter plate is sleeved on the outer wall of the bottom end of the pump unit.

[0005] As an improvement to the above technical solution, a cross mounting base is fixedly installed at the top of the support rod, and handrail seats are fixedly inserted into the upper ends of the two sets of support rods. The handrail seats are fixedly installed with the servo motor.

[0006] As an improvement to the above technical solution, a coupling is fixedly installed between the sampling rod and the servo motor.

[0007] As an improvement to the above technical solution, the lower end surface of the support rod is threaded, and limiting nuts are fixedly installed at the four corners of the limiting seat, and the limiting nuts are screwed into the threads.

[0008] As an improvement to the above technical solution, several sets of insert rods are fixedly installed at the bottom of the gripping seat.

[0009] The beneficial effects of this utility model are: 1. This utility model ensures that the sampling rod accurately reaches the predetermined water sample collection position through the precise control of the servo motor. The rational design of the support components, including the coordinated action of the annular base, square fixed seat, gripping seat, support rod, limiting seat, and connecting rod, enables the device to remain stable on different terrains. Even on uneven ground, the stability of the device can be ensured by adjusting the angle of the telescopic rod and connecting rod, reducing shaking and movement during the collection process and improving the collection effect. The dual filtration design of the filter sleeve and spiral filter plate in the filtration component can effectively remove impurities and particles of different sizes from the water sample. The filter sleeve performs preliminary filtration, intercepting larger impurities; the spiral filter plate performs secondary filtration, further removing fine impurities, improving the quality of the collected water sample and reducing the interference of impurities on subsequent water quality test results. The sealing box protects the pumping unit, and the rational selection and design of each component can reduce the damage and wear of the device during the collection process. For example, the filter sleeve and spiral filter plate can prevent impurities from entering the pumping unit, extending the service life of the pumping unit and reducing the maintenance cost of the device. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the driving component of this utility model; Figure 3 This is a structural diagram of the support component of this utility model; Figure 4 This is a structural diagram of the pumping unit of this utility model.

[0011] Reference numerals: 1. Pushing assembly; 11. Sampling rod; 12. Servo motor; 13. Coupling; 2. Support assembly; 21. Annular base; 22. Square fixing seat; 221. Telescopic rod; 23. Ground gripping seat; 231. Insert rod; 24. Support rod; 241. Thread; 25. Limiting seat; 251. Limiting nut; 26. Connecting rod; 27. Cross mounting seat; 28. Handrail seat; 3. Filter assembly; 31. Sealing box; 32. Pumping unit; 321. Filter sleeve; 322. Spiral filter plate. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0013] Please see Figure 1-4 This utility model provides a technical solution: A surface water sampling device includes a pushing component 1, which comprises a sampling rod 11 and a servo motor 12. The servo motor 12 is fixedly installed at the top of the sampling rod 11, and a support component 2 is sleeved on the bottom of the servo motor 12. The support component 2 includes an annular base 21, a square fixing seat 22, a gripping seat 23, a support rod 24, a limiting seat 25, and a connecting rod 26. The annular base 21 is sleeved on the bottom of the sampling rod 11, and several sets of square fixing seats 22 are welded to the periphery of the annular base 21. A telescopic rod 2 is fixedly installed inside the annular base 21. 21. The gripping seat 23 is fixedly installed at the top of the telescopic rod 221. One end of several sets of support rods 24 is fixedly installed on the upper surface of the annular base 21. The four corners of the limiting seat 25 are threadedly installed with the support rods 24. The connecting rod 26 is hinged between the limiting seat 25 and the gripping seat 23. The bottom end of the sampling rod 11 is fixedly installed with a filter assembly 3. The filter assembly 3 includes a sealing box 31. A water pumping unit 32 is installed at the bottom of the sealing box 31. A filter sleeve 321 is sleeved at the bottom of the water pumping unit 32. A spiral filter plate 322 is sleeved on the outer wall of the bottom end of the water pumping unit 32.

[0014] In this implementation scheme, the sampling rod 11 of the drive component 1 serves as a key load-bearing and transmission component of the entire sampling device. It acts as a bridge connecting the servo motor 12 and the filter component 3, transmitting the power generated by the servo motor 12 to the filter component 3, driving it to move up and down to accurately reach surface water layers at different depths for water sample collection. Furthermore, its length can be adjusted according to actual sampling needs to adapt to surface water detection scenarios at different depths. The servo motor 12 provides precise and controllable power for the movement of the sampling rod 11. By precisely controlling the forward and reverse rotation and speed of the servo motor 12, accurate control of the lifting speed and position of the sampling rod 11 can be achieved, ensuring that the filter component 3 can accurately reach the predetermined water sample collection position, thus improving water sample collection efficiency. To ensure accuracy and reliability, the annular base 21 of the support component 2 is the basic support structure of the entire sampling device, providing a stable installation platform for other components. It can distribute the overall weight of the device, making it relatively stable on different terrains and reducing shaking caused by uneven ground, thus providing a stable operating environment for water sample collection. The square fixing seat 22 is welded to the outer perimeter of the annular base 21. Its function is to increase the contact area and friction between the annular base 21 and the ground. Through the combined action of multiple square fixing seats 22, the device can be more effectively fixed to the ground, preventing the device from moving or tipping over during the collection process and ensuring the smooth progress of the collection work. The gripping seat 23 is installed at the top of the telescopic rod 221 inside the annular base 21. 221 The height of the gripping seat 23 can be adjusted according to the actual ground conditions, so that the gripping seat 23 can better adapt to uneven ground, enhance the grip of the device on the ground, and further improve the stability of the device. One end of the support rod 24 is fixed to the upper surface of the annular base 21, providing support for the limiting seat 25. It, together with the limiting seat 25, the connecting rod 26 and the gripping seat 23, constitutes a stable support system, ensuring the relative position stability between the components of the device during the collection process, and ensuring the smooth lifting and lowering movement of the sampling rod 11. The limiting seat 25 is threaded to the support rod 24 at its four corners, and its position can be adjusted up and down along the support rod 24 to limit the lifting and lowering range of the sampling rod 11, preventing the sampling rod 11 from excessively lifting and lowering, which could damage the device or affect the collection effect. The position of the limiting seat 25 ensures that the filter assembly 3 collects water samples within a safe and effective range. The connecting rod 26 is hinged between the limiting seat 25 and the gripping seat 23, forming a movable connection structure. It can automatically adjust its angle according to the undulation of the ground, allowing the support assembly 2 to better adapt to different terrain conditions, further enhancing the stability and adaptability of the device. The sealing box 31 of the filter assembly 3 provides sealing protection for the pumping unit 32, preventing water and other impurities from entering the pumping unit 32, avoiding damage to the pumping unit 32 due to water ingress, extending the service life of the pumping unit 32, and ensuring its normal and stable operation. The pumping unit 32 is the core component of water sample collection, using its pumping function to draw surface water into the collection device.It provides sufficient suction to allow water samples to enter the device smoothly, providing samples for subsequent water quality testing. The filter sleeve 321 is fitted at the bottom of the pump unit 32, performing preliminary filtration of the water sample entering the pump unit 32. It can intercept larger impurities and particles, preventing these impurities from entering the pump unit 32 and causing blockages, ensuring the normal operation of the pump unit 32, and improving the quality of the collected water samples. The spiral filter plate 322 is fitted on the outer wall of the bottom end of the pump unit 32. Its spiral structure increases the filtration area, enabling secondary filtration of the water sample. It can further remove fine impurities and suspended solids from the water sample, making the collected water sample purer and reducing the interference of impurities on subsequent water quality testing results.

[0015] Workflow: Transport the assembled sampling device to the surface water sampling site. Select a relatively flat and easy-to-operate location to place the device. Adjust the length of the telescopic rod 221 according to the actual ground conditions to ensure that the gripping base 23 fully contacts the ground and that the device is placed stably. Connect the power supply to the water sampling device and start the servo motor 12. By controlling the forward and reverse rotation and speed of the servo motor 12, the sampling rod 11 is slowly lowered to immerse the filter assembly 3 in the surface water. During the descent, closely observe the movement of the sampling rod 11 to ensure a smooth descent. Once the filter assembly 3 reaches the appropriate water depth, start the water pump. Group 32 begins water sampling. The water sample passes through the spiral filter plate 322 and the filter sleeve 321 for double filtration before entering the pumping unit 32 and being collected. After collecting a certain amount of water sample, the servo motor 12 is controlled to slowly raise the sampling rod 11, lifting the filter assembly 3 out of the water. During the raising process, attention should also be paid to the smoothness of the movement of the sampling rod 11. Sample processing: The pumping unit 32 and the servo motor 12 are turned off, the power supply of the device is disconnected, and the collected water sample is transferred from the pumping unit 32 to a clean, sealed container. The collection time, location, and water depth are labeled for subsequent water quality testing and analysis.

[0016] Beneficial effects: The precise control of the servo motor 12 ensures that the sampling rod 11 accurately reaches the predetermined water sample collection position, avoiding the uncertainty and error of manual operation, improving the accuracy and consistency of water sample collection, and providing more reliable data support for subsequent water quality testing. The reasonable design of the support component 2, including the coordinated action of the annular base 21, square fixing seat 22, gripping seat 23, support rod 24, limiting seat 25, and connecting rod 26, enables the device to remain stable on different terrains. Even on uneven ground, the stability of the device can be ensured by adjusting the angle of the telescopic rod 221 and the connecting rod 26, reducing shaking and movement during the collection process and improving the collection effect. Filter component 3... The dual filtration design of the filter sleeve 321 and spiral filter plate 322 effectively removes impurities and particles of different sizes from the water sample. The filter sleeve 321 performs preliminary filtration, intercepting larger impurities; the spiral filter plate 322 performs secondary filtration, further removing fine impurities, thus improving the quality of the collected water sample and reducing the interference of impurities on subsequent water quality test results. The sealing box 31 protects the pumping unit 32, and the reasonable selection and design of various components can reduce the damage and wear of the device during the collection process. For example, the filter sleeve 321 and spiral filter plate 322 can prevent impurities from entering the pumping unit 32, extending the service life of the pumping unit 32 and reducing the maintenance cost of the device.

[0017] Specifically, a cross-shaped mounting base 27 is fixedly installed at the top of the support rod 24, and a handrail base 28 is fixedly inserted into the upper end of the two sets of support rods 24. The handrail base 28 is fixedly installed with the servo motor 12.

[0018] In this embodiment, the rational design of the support component 2, including the coordinated action of the annular base 21, square fixing seat 22, gripping seat 23, support rod 24, limiting seat 25, connecting rod 26, cross mounting seat 27, and handrail seat 28, enables the device to remain stable on different terrains. Even on uneven ground, the stability of the device can be ensured by adjusting the angles of the telescopic rod 221 and connecting rod 26, and by using the handrail seat 28 for auxiliary adjustment, reducing shaking and movement during the collection process and improving the collection effect. The design of the handrail seat 28 provides operators with a convenient part to hold and operate the device, making the movement, adjustment of position and angle of the device more convenient and safe. Operators can easily carry the device to the collection site and use the handrail seat 28 to assist in controlling the stability of the device during the collection process, improving collection efficiency. Especially in the field environment, it can save time and manpower and meet the needs of rapid detection. The cross mounting seat 27 provides an additional installation position for the device, and auxiliary equipment such as sensors for monitoring the status of the device and lighting equipment can be installed according to actual needs, increasing the functionality and expandability of the device, making it able to adapt to more different collection scenarios and needs.

[0019] Specifically, a coupling 13 is fixedly installed between the sampling rod 11 and the servo motor 12.

[0020] In this embodiment, the sampling rod 11 is installed at the connection between the sampling rod 11 and the servo motor 12, playing a key role in connecting and transmitting torque. It can compensate for the small axial, radial and angular displacements between the servo motor 12 and the sampling rod 11 caused by manufacturing or installation errors or deformation under force, ensuring smooth and reliable power transmission between the two, reducing vibration and impact, extending the service life of the servo motor 12 and the sampling rod 11, and improving the stability of the entire transmission system.

[0021] Specifically, the lower end surface of the support rod 24 is provided with a thread 241, and the four corners of the limiting seat 25 are fixedly installed with limiting nuts 251, which are threadedly engaged with the thread 241.

[0022] In this embodiment, the thread 241 on the lower end surface of the support rod 24 is threadedly engaged with the limiting nuts 251 fixed at the four corners of the limiting seat 25. By rotating the limiting nuts 251, the limiting seat 25 can move up and down and be fixed on the support rod 24. The operator can easily adjust the position of the limiting seat 25 by simply rotating the limiting nuts 251. No complicated tools or operating procedures are required, and it can quickly adapt to the collection needs of water samples at different depths.

[0023] Specifically, several sets of insert rods 231 are fixedly installed at the bottom of the gripping base 23.

[0024] In this embodiment, the gripping base 23 serves as the basic component for the entire device to contact and fix with the ground. By fixing several sets of insertion rods 231 at its bottom, the insertion rods 231 are inserted into the ground, such as soil or sand, to increase the friction and adhesion between the gripping base 23 and the ground, thereby ensuring the stability of the entire device during operation and preventing it from moving or tipping over due to external forces, such as wind or reaction forces during sampling.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A collection device for surface water testing, characterized by: The device includes a pushing component (1), which includes a sampling rod (11) and a servo motor (12). The servo motor (12) is fixedly installed at the top of the sampling rod (11). A support component (2) is sleeved on the bottom of the servo motor (12). The support component (2) includes an annular base (21), a square fixing seat (22), a gripping seat (23), a support rod (24), a limiting seat (25), and a connecting rod (26). The annular base (21) is sleeved on the bottom of the sampling rod (11). Several sets of square fixing seats (22) are welded to the periphery of the annular base (21). A telescopic rod (221) is fixedly installed inside the annular base (21). The base (23) is fixedly installed at the top of the telescopic rod (221). One end of each of the several sets of support rods (24) is fixedly installed on the upper surface of the annular base (21). The four corners of the limiting seat (25) are threadedly installed with the support rod (24). The connecting rod (26) is hinged between the limiting seat (25) and the gripping seat (23). The bottom end of the sampling rod (11) is fixedly installed with a filter assembly (3). The filter assembly (3) includes a sealing box (31). A water pump unit (32) is installed at the bottom of the sealing box (31). A filter sleeve (321) is sleeved on the bottom of the water pump unit (32). A spiral filter plate (322) is sleeved on the outer wall of the bottom end of the water pump unit (32).

2. The collecting device for surface water detection according to claim 1, characterized in that: A cross mounting base (27) is fixedly installed at the top of the support rod (24), and a handrail base (28) is fixedly inserted into the upper end of the two sets of support rods (24). The handrail base (28) is fixedly installed with the servo motor (12).

3. The device according to claim 1, characterized in that: A coupling (13) is fixedly installed between the sampling rod (11) and the servo motor (12).

4. The device according to claim 1, characterized in that: The lower end surface of the support rod (24) is provided with a thread (241), and the four corners of the limiting seat (25) are fixedly installed with limiting nuts (251), and the limiting nuts (251) are screwed into the thread (241).

5. The device according to claim 1, characterized in that: Several sets of insert rods (231) are fixedly installed at the bottom of the gripping seat (23).

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