Water quality detection sampling device

Abstract

The utility model discloses a water quality detection sampling device which comprises a base, the top of the base is fixedly connected with a top plate through a plurality of stand columns, a hanging ring is fixedly installed in the center of the top of the top plate, a plurality of sampling barrels are detachably installed on the top plate in a penetrating mode, and pressing valves are installed at the lower ends of the sampling barrels in a penetrating mode; according to the water sampling device, when the device sinks to a first required depth, the speed reduction stepping motor is started to drive the rod body to rotate, so that the frustum body block moves to the position under the pressing valve at the bottom of the first sampling barrel, the pressing valve can be triggered, and water enters the sampling barrel; then the deceleration stepping motor is started to drive the frustum block and the pressing valve to be staggered, the pressing valve can be closed, sampling of one depth is completed, then the device continues to be put down to the subsequent sampling depth, the operation is repeated at each sampling depth, multi-depth water body sampling can be completed in the same sampling water area, operation is easy and convenient, and the sampling efficiency is improved. And the sampling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to a sampling device, specifically a water quality testing sampling device. Background Technology

[0002] Water quality testing is a fundamental task in water pollution control engineering and is of great significance. In order to obtain various water quality data, it is often necessary to use sampling equipment to sample the water body to assist in subsequent testing.

[0003] A search revealed that patent CN222027985U discloses a water quality testing sampling device. Its outer protective unit protects the water sampling tube body, preventing collisions that could affect the device's safety and sampling efficiency. Furthermore, the suction and blocking units effectively contain the sampled water within the sampling tube body. Additionally, the filter unit prevents impurities in the water from entering the sampling device, thus avoiding water quality issues or clogging, thereby improving the device's efficiency and practicality.

[0004] While the above solution can protect the sampling tube and prevent the sampling device from being blocked, it can only sample water at a single depth each time it is deployed. However, water quality testing often requires sampling at multiple depths in the same water area. Therefore, when using this device for sampling, multiple deployments are required to meet the needs of multi-depth sampling, which is inefficient and needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a water quality testing and sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water quality testing and sampling device includes a base, a top plate fixedly connected to the top of the base by multiple columns, a lifting ring fixedly installed at the center of the top of the top plate, multiple sampling buckets detachably installed on the top plate, a press valve installed at the lower end of each sampling bucket, and the lower end of the press valve penetrating the top surface of the base, a reduction stepper motor fixedly installed on the top of the base, a rod fixedly connected to the output shaft of the reduction stepper motor, a frustum block fixedly installed on the top of the rod, multiple press valves evenly distributed in a circle on the moving path of the frustum block, and the frustum block and press valves being compatible, and a counterweight connected to the bottom of the base by multiple suspension ropes.

[0008] As a further embodiment of this utility model: the sampling bucket includes a bucket body, the pressing valve is fixedly installed at the bottom center of the bucket body, the top of the bucket body is threadedly connected to a bucket lid, the top of the top plate has multiple perforations distributed in a circular pattern, the diameter of the perforations is adapted to the outer diameter of the bucket lid, the outer peripheral wall of the top plate and the corresponding position of each perforation are fitted with a hand-tightening bolt through a threaded hole, the outer peripheral wall of the bucket lid and the corresponding position of the hand-tightening bolt are provided with an annular groove, and the threaded end of the hand-tightening bolt is located in the corresponding annular groove.

[0009] As a further embodiment of this utility model, a one-way valve is fixedly installed at the top of the bucket lid.

[0010] As a further embodiment of this utility model: the pressing valve includes a valve block fixedly installed at the center of the bottom of the barrel, a valve rod slidably installed at the center of the bottom of the valve block, a valve plate fixedly connected to the top of the valve rod, a rubber pad fixedly connected to the bottom surface of the valve plate, multiple through holes through the valve block corresponding to the rubber pad, a spherical block fixedly connected to the bottom of the valve rod, and a spring sleeved on the outer wall of the valve rod between the valve block and the spherical block.

[0011] As a further embodiment of this utility model: a positioning groove is provided on the top of the base, the inner diameter of the positioning groove is adapted to the outer diameter of the bottom of the barrel, and a positioning hole is provided through the center of the positioning groove, the inner diameter of the positioning hole is adapted to the outer diameter of the valve block.

[0012] As a further embodiment of this utility model: a guide groove is provided on the inner side of the base corresponding to the rod body, and the end of the rod body is located in the guide groove.

[0013] As a further improvement of this utility model, a filter screen is detachably connected to the lower opening of the base by a number of screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, when the device sinks to the first required depth, a deceleration stepper motor is activated to drive the rod to rotate, so that the truncated cone block moves directly below the pressing valve at the bottom of the first sampling bucket. This triggers the pressing valve, allowing water to enter the sampling bucket. Then, the deceleration stepper motor is activated to drive the truncated cone block to deviate from the pressing valve, thus closing the pressing valve and completing sampling at one depth. The device is then lowered to subsequent sampling depths, and the above operation is repeated at each sampling depth. This allows for water sampling at multiple depths within the same sampling area, making the operation simple and convenient and greatly improving sampling efficiency. Attached Figure Description

[0016] Figure 1This is a cross-sectional structural diagram of a water quality testing and sampling device.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 This is a schematic diagram of the top structure of the base in a water quality testing and sampling device.

[0019] The components include: base 1, column 2, top plate 3, lifting ring 4, decelerated stepper motor 5, rod 6, truncated cone block 7, guide groove 8, filter screen 9, positioning groove 10, positioning hole 11, barrel body 12, barrel lid 13, one-way valve 14, through hole 15, hand-tightening bolt 16, annular groove 17, press valve 18, valve block 19, valve stem 20, spherical block 21, spring 22, valve plate 23, rubber pad 24, through hole 25, lifting rope 26, and counterweight block 27. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation in the specification, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0024] Please see Figures 1-3In this embodiment of the present invention, a water quality testing and sampling device includes a base 1. A top plate 3 is fixedly connected to the top of the base 1 via multiple columns 2. A lifting ring 4 is fixedly installed at the center of the top of the top plate 3. Multiple sampling buckets are detachably installed on the top plate 3. A press valve 18 is installed at the lower end of each sampling bucket, and the lower end of the press valve 18 penetrates the top surface of the base 1. A reduction stepper motor 5 is fixedly installed on the top of the base 1. The reduction stepper motor 5 is connected to a controller on shore via a tensile cable. The tensile cable is connected and fixed to the lifting ring 4, and then wound onto the winding and unwinding equipment on the shore. The tensile cable is connected to the controller through a conductive slip ring to avoid interfering with the operation of the winding and unwinding equipment. The output shaft of the deceleration stepper motor 5 is fixedly connected to a rod 6. A frustum block 7 is fixedly installed on the top of the rod 6. Multiple pressing valves 18 are evenly distributed in a circular pattern on the moving path of the frustum block 7, and the frustum block 7 and the pressing valves 18 are compatible. The bottom of the base 1 is connected to a counterweight 27 through multiple lifting ropes 26.

[0025] This utility model adopts the above-mentioned solution. In use, after the device is placed into the sampling water area, when the device sinks to the first required depth, the deceleration stepper motor 5 is started to drive the rod body 6 to rotate, so that the cone block 7 moves to the bottom of the first sampling bucket directly below the pressing valve 18, which triggers the pressing valve 18 to allow water to enter the sampling bucket. Then, the deceleration stepper motor 5 is started to drive the cone block 7 to be offset from the pressing valve 18, which closes the pressing valve 18, thus completing the sampling at one depth. Then, the device is lowered to the subsequent sampling depths, and the above operation is repeated at each sampling depth. This allows for water sampling at multiple depths in the same sampling water area. The operation is simple and convenient, greatly improving the sampling efficiency.

[0026] Specific combination Figure 1 In one embodiment of this utility model, the sampling bucket includes a bucket body 12, and a pressing valve 18 is fixedly installed at the bottom center of the bucket body 12. The top of the bucket body 12 is threadedly connected to a bucket lid 13. The top of the top plate 3 has a plurality of through holes 15 distributed in a circular pattern. The diameter of the through holes 15 is adapted to the outer diameter of the bucket lid 13. The outer peripheral wall of the top plate 3 and the corresponding positions of each through hole 15 are fitted with hand-tightening bolts 16 through threaded holes. The outer peripheral wall of the bucket lid 13 and the corresponding positions of the hand-tightening bolts 16 are provided with annular grooves 17. The threaded end of the hand-tightening bolts 16 is located in the corresponding annular grooves 17.

[0027] By using the hand-tightened bolts 16 and the annular groove 17, each bucket lid 13 can be positioned on the top plate 3, thereby achieving the positioning and installation of each sampling bucket. The operation is simple and convenient.

[0028] Specific combination Figure 1Furthermore, based on the previous embodiment, a one-way valve 14 is fixedly installed on the top of the bucket lid 13. With the setting of the one-way valve 14, when water enters the bucket body 12 through the press valve 18, the air in the bucket body 12 can be discharged by the one-way valve 14 to improve the water intake speed.

[0029] Specific combination Figure 2 In one embodiment of this utility model, the pressing valve 18 includes a valve block 19 fixedly installed at the center of the bottom of the barrel 12. A valve rod 20 is slidably installed at the center of the bottom of the valve block 19. A valve plate 23 is fixedly connected to the top of the valve rod 20. A rubber pad 24 is fixedly connected to the bottom surface of the valve plate 23. A plurality of through holes 25 are provided on the valve block 19 corresponding to the rubber pad 24. A spherical block 21 is fixedly connected to the bottom of the valve rod 20. A spring 22 is sleeved on the outer wall of the valve rod 20 between the valve block 19 and the spherical block 21.

[0030] When the frustum block 7 contacts the spherical block 21 and continues to move directly below the spherical block 21, it will push the valve rod 20 upward through the spherical block 21 and compress the spring 22, causing the rubber pad 24 to disengage from the through hole 25. At this time, water will quickly enter the tank 12 through the through hole 25 to achieve sampling. After the frustum block 7 disengages from the spherical block 21, the valve plate 23 and the rubber pad 24 will reset under the action of the spring 22 to block the through hole 25, thereby achieving automatic closure of the press valve 18 to prevent water from re-entering the tank 12.

[0031] Specific combination Figure 1-3 In one embodiment of the present invention, a positioning groove 10 is provided on the top of the base 1. The inner diameter of the positioning groove 10 is adapted to the outer diameter of the bottom end of the barrel 12. A positioning hole 11 is provided through the center of the positioning groove 10. The inner diameter of the positioning hole 11 is adapted to the outer diameter of the valve block 19.

[0032] By setting the positioning groove 10 and the positioning hole 11, the lower end of the barrel 12 and the press valve 18 can be positioned and installed on the base 1.

[0033] Specific combination Figure 2 In one embodiment of this utility model, a guide groove 8 is provided on the inner side of the base 1 corresponding to the rod 6. The end of the rod 6 is located in the guide groove 8. Through the cooperation between the rod 6 and the guide groove 8, the end of the rod 6 can be supported, thereby improving the stability of the rod 6 when the frustum block 7 contacts the spherical block 21 and compresses the spring 22.

[0034] Specific combination Figure 2In one embodiment of this utility model, a filter screen 9 is detachably connected to the lower opening of the base 1 by a number of screws. The filter screen 9 can filter the water entering the base 1 to a certain extent, thereby reducing the possibility that the pressure valve 18 will be blocked by impurities in the water.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water quality testing and sampling device, characterized in that: The base (1) is fixedly connected to a top plate (3) by multiple columns (2) at its top. A lifting ring (4) is fixedly installed at the center of the top of the top plate (3). Multiple sampling buckets are detachably installed on the top plate (3). A pressing valve (18) is installed at the bottom of the sampling bucket and the bottom of the pressing valve (18) penetrates the top surface of the base (1). A deceleration stepper motor (5) is fixedly installed on the top of the base (1). A rod (6) is fixedly connected to the output shaft of the deceleration stepper motor (5). A frustum block (7) is fixedly installed on the top of the rod (6). Multiple pressing valves (18) are evenly distributed in a circular pattern on the moving path of the frustum block (7). The frustum block (7) and the pressing valves (18) are compatible. A counterweight (27) is connected to the bottom of the base (1) by multiple hanging ropes (26).

2. The water quality testing and sampling device according to claim 1, characterized in that: The sampling bucket includes a bucket body (12), and the pressing valve (18) is fixedly installed at the bottom center of the bucket body (12). The top of the bucket body (12) is threadedly connected to a bucket lid (13). The top of the top plate (3) has multiple perforations (15) distributed in a circular pattern. The diameter of the perforations (15) is adapted to the outer diameter of the bucket lid (13). The outer peripheral wall of the top plate (3) and the corresponding positions of each perforation (15) are fitted with hand-tightening bolts (16) through threaded holes. The outer peripheral wall of the bucket lid (13) and the corresponding positions of the hand-tightening bolts (16) are provided with annular grooves (17). The threaded end of the hand-tightening bolts (16) is located in the corresponding annular grooves (17).

3. The water quality testing and sampling device according to claim 2, characterized in that: A one-way valve (14) is fixedly installed on the top of the bucket lid (13).

4. The water quality testing and sampling device according to claim 1, characterized in that: The press valve (18) includes a valve block (19) fixedly installed at the center of the bottom of the barrel (12). A valve rod (20) is slidably installed at the center of the bottom of the valve block (19). A valve plate (23) is fixedly connected to the top of the valve rod (20). A rubber pad (24) is fixedly connected to the bottom surface of the valve plate (23). Multiple through holes (25) are provided on the valve block (19) corresponding to the rubber pad (24). A spherical block (21) is fixedly connected to the bottom of the valve rod (20). A spring (22) is sleeved on the outer wall of the valve rod (20) between the valve block (19) and the spherical block (21).

5. A water quality testing and sampling device according to claim 1, characterized in that: The base (1) has a positioning groove (10) on its top. The inner diameter of the positioning groove (10) is adapted to the outer diameter of the bottom of the barrel (12). A positioning hole (11) is provided through the center of the positioning groove (10). The inner diameter of the positioning hole (11) is adapted to the outer diameter of the valve block (19).

6. The water quality testing and sampling device according to claim 1, characterized in that: A guide groove (8) is provided on the inner side of the base (1) at the corresponding position of the rod (6), and the end of the rod (6) is located in the guide groove (8).

7. A water quality testing and sampling device according to claim 1, characterized in that: A filter screen (9) is detachably connected to the lower opening of the base (1) by a number of screws.

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