Automatic water quality sampler

Abstract

The utility model is applicable to the technical field of environmental protection and hydraulic engineering, and provides an automatic water quality sampler which comprises a sampling cylinder, a cavity is formed in the sampling cylinder, opposite through openings are formed in the top end and the bottom end of the sampling cylinder, and electromagnetic valves are arranged at the two opposite openings; the upper electromagnetic valve and the lower electromagnetic valve are arranged at the upper opening and the lower opening of the sampling cylinder, after sampling at the specified depth, the upper opening and the lower opening of the sampling cylinder are directly closed through the electromagnetic valves, and the situation that the actual depth of a sampled sample is affected due to the fact that the valves are opened due to possible secondary lowering action in the sampling process is avoided; the pressure sensor is arranged on the sampling cylinder, so that the water depth of the sampler can be detected in real time, the depth can be recorded as required, and the water depth can be measured while a water sample is collected; water sampling at a specified depth can be realized through a preset depth value, when the pressure sensor detects that the specified depth is reached, the electromagnetic valve is automatically controlled to be closed, and then water sampling at the specified depth is completed.

Description

Technical Field

[0001] The utility model relates to the technical fields of environmental protection and water conservancy engineering, in particular to a water quality automatic sampler. Background Art

[0002] During the water quality sampling process in the water environment, it is often necessary to collect water samples from the middle layer, the lower layer, and even the specified water depth to achieve stratified (multi-layer) sampling and monitoring research.

[0003] The patent document with the publication number of CN208076204U provides a water quality sampler, which includes a water collecting bucket, a handle, and a hanging ring. The handle is fixedly arranged at the upper end of the outer wall of the water collecting bucket, and the hanging ring is sleeved on the handle. A water passing hole is arranged at the bottom of the water collecting bucket, a filter screen is arranged in the water passing hole, a movable bottom plate matching the size of the water passing hole is arranged inside the water collecting bucket, and a limiting block is arranged above the bottom plate.

[0004] However, in this structure, during the daily sampling process, the depth reached by the water sampler is usually estimated roughly through a rope. There are two disadvantages: First, due to the water flow velocity, the rope may not be kept vertical, may be inclined, or even bent underwater. But because it is underwater, the sampling personnel cannot know the specific situation. Therefore, it is difficult to grasp the sampling depth during sampling. Second, for a conventional sampler, when the upper and lower valves have a lowering action during sampling, the valves will open. Therefore, in fact, the depth at which the last lowering action is located is collected, rather than necessarily the depth at the deepest part. Summary of the Utility Model

[0005] The utility model provides a water quality automatic sampler, aiming to solve the problems of synchronous measurement of the sampling depth during water quality sampling, and the problem that the ordinary sampler actually collects the depth at which the last lowering action is located, rather than necessarily the depth at the deepest part.

[0006] The utility model is realized as follows: A water quality automatic sampler includes a sampling cylinder. The inside of the sampling cylinder is a cavity. Both the top end and the bottom end of the sampling cylinder are provided with relatively through openings, and electromagnetic valves are arranged at both opposite openings.

[0007] The beneficial effect of adopting the above further scheme is: It ensures that the internal and external water pressures of the sampling cylinder are the same during sampling, prevents the sampling cylinder from being damaged by water pressure, and at the same time prevents the sampling cylinder from being affected by buoyancy and reducing the descending depth. By directly closing the upper and lower openings of the sampling cylinder with electromagnetic valves, the sampling result will not be affected due to the opening of the valves during the lowering action.

[0008] Preferably, the solenoid valve includes: an electromagnetic coil, which is arranged around the opening, and a number of magnetic limit buckles are provided on the outside of the electromagnetic coil, and the several magnetic limit buckles are fixedly connected to the sampling tube, and an electromagnetic block is provided on the inside of the electromagnetic coil, and the electromagnetic block is located directly above the electromagnetic coil.

[0009] The beneficial effect of adopting the above further solution is that the upper and lower openings of the sampling tube 1 are sealed, thereby completing the collection of sampled water.

[0010] Preferably, a handle is provided at the upper end of the sampling cylinder.

[0011] The beneficial effect of adopting the above further solution is that the sampling tube is convenient to pick up and carry.

[0012] Preferably, the top end of the handle is fixedly connected with a hanging rope.

[0013] The beneficial effect of adopting the above further solution is that it is convenient to put the sampling tube into the water through the hanging rope, and it is also convenient to take out the sampling tube.

[0014] Preferably, a pressure sensor is provided on the outer side wall of the sampling cylinder.

[0015] The beneficial effect of adopting the above further solution is that the water depth can be measured simultaneously with the water sample collection.

[0016] Preferably, the sampling cylinder is provided with a waterproof control panel above the pressure sensor, and the solenoid valve and the pressure sensor are both electrically connected to the waterproof control panel.

[0017] The beneficial effect of adopting the above further solution is that when the pressure sensor detects that the specified depth has been reached, the solenoid valve is controlled to close, and the water quality sampling at the specified depth is completed.

[0018] Preferably, a drain pipe is provided on the bottom side wall of the sampling cylinder, and a valve is provided on the drain pipe.

[0019] The beneficial effect of adopting the above further solution is that the water sample is discharged for testing, which is convenient for staff to use.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. By setting upper and lower solenoid valves at the upper and lower openings of the sampling cylinder, after sampling at the specified depth, the upper and lower openings of the sampling cylinder are directly closed by the solenoid valves, and the sampling results will not be affected by the lowering action and the valve opening;

[0022] 2. Through the preset of the waterproof control panel, when the pressure sensor detects that it has reached the specified depth, the solenoid valve is controlled to close, and the water quality sampling at the specified depth is completed.

[0023] 3. By providing a pressure sensor on the sampling cylinder, the water depth of the sampler can be detected in real time, and the depth can be recorded as needed. When collecting water samples, the water depth can be measured simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural view of the present utility model;

[0025] Figure 2 is Figure 1 the side view structural schematic diagram (removing the solenoid valve);

[0026] Figure 3 is the internal structural schematic diagram of the present utility model;

[0027] Figure 4 is Figure 1 the explosion structural schematic diagram of the solenoid valve in

[0028] In the figure: 1. Sampling cylinder; 2. Solenoid valve; 21. Electromagnetic coil; 22. Magnet limit buckle; 23. Electromagnetic block; 3. Handle; 4. Suspension rope; 5. Pressure sensor; 6. Waterproof control panel; 7. Drain pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] Please refer to Figures 1-4 , the present utility model provides a technical solution for a water quality automatic sampler: including a sampling cylinder 1, the inside of the sampling cylinder 1 is a cavity, both the top and bottom ends of the sampling cylinder 1 are provided with relatively through openings, and solenoid valves 2 are provided at both opposite openings.

[0031] In this embodiment, by providing openings at the upper and lower ends of the sampling cylinder 1, and solenoid valves 2 are installed at both ends of the openings. When in use, the sampling cylinder 1 is placed in water, and both the upper and lower solenoid valves 2 are in the open state. Water enters through the openings at both ends of the sampling cylinder 1 and sinks to the specified depth. After reaching the specified depth required for sampling, the upper and lower solenoid valves 2 are closed to complete the water quality sampling at the specified depth. By providing openings at both the upper and lower ends, it can ensure that the internal and external water pressures of the sampling cylinder 1 are the same during sampling, prevent the sampling cylinder 1 from being damaged by water pressure, and at the same time prevent the sampling cylinder 1 from being affected by buoyancy and reducing the depth. By providing upper and lower solenoid valves 2 at the upper and lower openings of the sampling cylinder 1, after sampling at the specified depth, the upper and lower openings of the sampling cylinder 1 can be directly closed by the solenoid valves 2, and it will not cause the valve to open due to possible lowering actions during the sampling process, thus affecting the sampling result.

[0032] Furthermore, the solenoid valve 2 includes: an electromagnetic coil 21 disposed around the opening. A plurality of magnetic block limit buckles 22 are provided outside the electromagnetic coil 21, and the plurality of magnetic block limit buckles 22 are fixedly connected to the sampling cylinder 1. An electromagnetic block 23 is provided inside the electromagnetic coil 21, and the electromagnetic block 23 is located directly above the electromagnetic coil 21.

[0033] In this embodiment, the structure of the solenoid valve 2 includes an electromagnetic coil 21, magnetic block limit buckles 22, and an electromagnetic block 23. When the sampling cylinder 1 descends for sampling, the electromagnetic coil 21 is not powered on. Under the action of water pressure, the electromagnetic block 23 is pushed up and opened, and water can enter the cylinder through the upper and lower openings of the sampling cylinder 1. The magnetic block limit buckles 22 prevent the electromagnetic block 23 from falling out. When the specified depth is reached, the electromagnetic coil 21 is powered on to adsorb the electromagnetic block 23 on the electromagnetic coil 21, sealing the upper and lower openings of the sampling cylinder 1 and completing the collection of the sampled water.

[0034] Generally, a handle 3 is provided at the upper end of the sampling cylinder 1.

[0035] In this embodiment, by providing a handle 3 on the sampling cylinder 1, it is convenient to pick up the sampling cylinder 1 and facilitate carrying.

[0036] Specifically, a suspension rope 4 is fixedly connected to the top end of the handle 3.

[0037] In this embodiment, by fixedly connecting a suspension rope 4 to the top end of the handle 3, it is convenient to put the sampling cylinder 1 into the water through the suspension rope 4 and also convenient to take out the sampling cylinder 1.

[0038] In addition, a pressure sensor 5 is provided on the outer side wall of the sampling cylinder 1.

[0039] In this embodiment, by providing a pressure sensor 5 on the sampling cylinder 1, the water depth of the sampler can be detected in real time, and the depth can be recorded as needed, enabling the measurement of the water depth while collecting water samples.

[0040] Additionally, a waterproof control panel 6 is provided above the pressure sensor 5 on the sampling cylinder 1. Both the solenoid valve 2 and the pressure sensor 5 are electrically connected to the waterproof control panel 6.

[0041] In this embodiment, by providing a waterproof control panel 6 on the sampling cylinder 1, where a storage battery is provided inside the sampling cylinder 1 to supply power to the device, the staff can preset through the waterproof control panel 6 to control the solenoid valve 2 to close when the pressure sensor 5 detects the specified depth, completing the water quality sampling at the specified depth.

[0042] It should be noted that a drain pipe 7 is provided on the bottom side wall of the sampling cylinder 1, and a valve is provided on the drain pipe 7.

[0043] In this embodiment, a drain pipe 7 is provided on the sampling cylinder 1. After the water quality sampling is completed, the water sample can be discharged for detection by opening the valve on the drain pipe 7, which is convenient for the staff to use.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water quality automatic sampler, characterized by: It includes a sampling cylinder (1) with a cavity inside. Both the top and bottom ends of the sampling cylinder (1) are provided with relatively through openings, and solenoid valves (2) are arranged at both opposite openings. The solenoid valve (2) includes: an electromagnetic coil (21) arranged around the opening. A number of magnetic block limit buckles (22) are arranged outside the electromagnetic coil (21), and the number of magnetic block limit buckles (22) is fixedly connected to the sampling cylinder (1). An electromagnetic block (23) is arranged inside the electromagnetic coil (21), and the electromagnetic block (23) is located directly above the electromagnetic coil (21).

2. The automatic water sampler according to claim 1, characterized in that: A handle (3) is arranged at the upper end of the sampling cylinder (1).

3. The automatic water sampler according to claim 2, characterized in that: A suspension rope (4) is fixedly connected to the top end of the handle (3).

4. The automatic water sampler according to claim 1, characterized in that: A pressure sensor (5) is arranged on the outer side wall of the sampling cylinder (1).

5. The automatic water sampler according to claim 4, characterized in that: A waterproof control panel (6) is arranged above the pressure sensor (5) on the sampling cylinder (1). The solenoid valve (2) and the pressure sensor (5) are both electrically connected to the waterproof control panel (6).

6. The automatic water quality sampler according to claim 1, characterized in that: A drain pipe (7) is arranged on the bottom side wall of the sampling cylinder (1), and a valve is arranged on the drain pipe (7).

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