A fast and convenient groundwater sampling device

Abstract

A fast and convenient groundwater sampling device, which relates to a groundwater collection device. It solves the problems of the existing groundwater collection device with complex structure, inconvenient field sampling and low efficiency. The middle part of the connecting rod of the push-pull opening and closing device of the present invention is arranged inside the funnel cylinder and the shower pipe. The shower pipe is arranged at the lower end of the funnel cylinder. The rubber valve is arranged between the shower pipe directly below and the counterweight chassis. The structure of the present invention is reasonably arranged, simple in structure, convenient to carry and store, improves the flexibility and convenience of field sampling work, and the setting of the counterweight chassis, exhaust port and shower pipe water inlet hole is beneficial for the sampling device to quickly sink in groundwater, thereby improving the sampling efficiency.

Description

Technical Field

[0001] The present invention relates to a groundwater collection device, and particularly to a fast and convenient groundwater sampling device. Background Art

[0002] Groundwater refers to the water stored in the rock voids below the ground surface. Narrowly speaking, it refers to the water in the saturated aquifer below the groundwater table. Due to its good water quality and stable water volume, groundwater is one of the important water sources for cities, industries, and agricultural irrigation. However, due to natural or human factors, groundwater salinization or pollution may occur. Therefore, before using groundwater, it is necessary to sample and detect the groundwater, and a groundwater sampling device is required. However, most of the existing groundwater sampling equipment has a complex structure, is inconvenient to carry, and is very inconvenient for field sampling. In actual applications, it is not convenient to adjust according to different terrains, resulting in low sampling efficiency. Summary of the Invention

[0003] In order to solve the problems of the existing groundwater collection device with a complex structure, inconvenient field sampling, and low efficiency, the present invention provides a fast and convenient groundwater sampling device. The technical solution to solve this problem is as follows:

[0004] A fast and convenient groundwater sampling device of the present invention is composed of a push-pull opening and closing device, a funnel tube, and a shower pipe. The middle part of the connecting rod of the push-pull opening and closing device is arranged inside the funnel tube and the shower pipe. The shower pipe is arranged at the lower end of the funnel tube. A rubber valve is arranged between the shower pipe and the counterweight chassis directly below it;

[0005] The push-pull opening and closing device is composed of a connecting rod, a push-pull ring, a fixing nut, a rubber valve, and a counterweight chassis. A connecting rod hole is opened at the center of the top of the rubber valve. The push-pull ring is arranged at the upper end of the connecting rod, and the push-pull ring is threadedly connected to the connecting rod. The rubber valve is arranged between the fixing nut and the counterweight chassis;

[0006] The funnel tube is composed of a tube cover, an exhaust port, and a support hole. The support hole is arranged at the center of the tube cover, and the exhaust port is arranged on both sides of the support hole;

[0007] A plurality of water inlet holes are opened on the wall of the shower pipe.

[0008] The beneficial effects of a fast and convenient groundwater sampling device of the present invention compared with the prior art are as follows: First, the structure is reasonably arranged, the structure is simple, it is convenient to carry and store, which is conducive to groundwater sampling work in the field, and improves the flexibility and convenience of field sampling work; Second, the counterweight chassis, exhaust port, and water inlet holes of the shower pipe are beneficial for the sampling device to quickly sink in groundwater. Together with the sample bottle, it can quickly collect and preserve groundwater samples, thereby improving the sampling efficiency. It is widely applicable to groundwater sampling. Brief Description of the Drawings

[0009] Figure 1 is the overall structural schematic diagram of the present invention, Figure 2 is Figure 1 the structural schematic diagram of the push-pull opening and closing device in Figure 3 is Figure 2 the structural schematic diagram of the connecting rod in Figure 4 is Figure 2 the structural schematic diagram of the push-pull ring in Figure 5 is the structural schematic diagram of the rubber valve in 2, Figure 6 is the state schematic diagram after the device sampling is completed, Figure 7 is the state schematic diagram when the sampling device places the water sample in the sample bottle. Embodiment

[0010] Embodiment 1. In combination with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 describe that this embodiment is composed of a push-pull opening and closing device 1, a funnel tube 2 and a shower tube 3. The middle part of the connecting rod 1-1 of the push-pull opening and closing device 1 is arranged inside the funnel tube 2 and the shower tube 3. The shower tube 3 is arranged at the lower end of the funnel tube 2. The rubber valve 1-4 is arranged between the lower part of the shower tube 3 and the counterweight chassis 1-5;

[0011] The described push-pull opening and closing device 1 is composed of a connecting rod 1-1, a push-pull ring 1-2, a fixing nut 1-3, a rubber valve 1-4 and a counterweight chassis 1-5. A connecting rod hole 1-4-1 is opened at the center of the top of the rubber valve 1-4. The push-pull ring 1-2 is arranged at the upper end of the connecting rod 1-1. The push-pull ring 1-2 is threadedly connected to the connecting rod 1-1. The rubber valve 1-4 is arranged between the fixing nut 1-3 and the counterweight chassis 1-5;

[0012] The described funnel tube 2 is composed of a tube cap 2-1, an exhaust port 2-2 and a support hole 2-3. The support hole 2-3 is arranged at the center of the tube cap 2-1. The exhaust port 2-2 is arranged on both sides of the support hole 2-3;

[0013] A number of water inlet holes 3-1 are opened on the tube wall of the described shower tube 3.

[0014] Embodiment 2. In combination with Figure 1 , Figure 2 describe that the counterweight chassis 1-5 in this embodiment adopts a stainless steel disc, and the diameter of the counterweight chassis 1-5 is larger than the outer diameters of the shower tube 3 and the rubber valve 1-4.

[0015] Embodiment 3. In combination with Figure 1 , Figure 2 describe that the inner diameter of the described shower tube 3 is larger than the outer diameter of the rubber valve 1-4 to make them closely cooperate.

[0016] Example 4, combination Figure 1 , Figure 3 , Figure 4 It is described that the push-pull ring 1-2 in this embodiment is a stainless steel ring, and a screw hole 1-2-1 is provided at the lower end of the push-pull ring 1-2. The connecting rod 1-1 and the push-pull ring 1-2 are connected through the thread 1-1-1 at the upper end of the connecting rod 1-1 and the internal thread hole 1-2-1 of the push-pull ring.

[0017] Example 5, combination Figure 1 , Figure 3 It is described that the lower thread 1-1-2 of the connecting rod 1-1 in this embodiment cooperates with the fixing nut 1-3 to position the rubber valve 1-4 between the weight chassis 1-5 and the fixing nut 1-3.

[0018] Example 6, combination Figure 1 , Figure 3 It is described that the connecting rod 1-1 in this embodiment is a solid stainless steel cylinder, and the connecting rod 1-1 moves up and down along the funnel tube 2 and the shower tube 3.

[0019] Example 7, combination Figure 1 , Figure 6 It is described that the shower tube 3 in this embodiment is fixedly connected to the funnel tube 2.

[0020] Example 8, combination Figure 1 , Figure 2 , Figure 5 It is described that the diameter of the fixing nut 1-3 in this embodiment is larger than the diameter of the connecting rod hole 1-4-1 of the rubber valve 1-4.

[0021] Example 9, combination Figure 1 , Figure 2 , Figure 3 It is described that the length of the connecting rod 1-1 in this embodiment is 25 cm and the diameter is 1 cm; the weight chassis 1-5 is a stainless steel disc with a diameter of 6 cm; the diameter of the rubber valve 1-4 is 4.5 cm, and the connecting rod hole 1-4-1 is 1 cm; the upper diameter of the funnel tube 2 is 20 cm, the lower diameter is 5 cm, the height is 15 cm, and the wall thickness is 0.5 cm; the height of the shower tube 3 is 5 cm, the diameter is 5 cm, the wall thickness is 0.5 cm, and the diameter of its water inlet hole 3-1 is 0.1 cm. The sample bottle 4 has a height of 20 cm and a diameter of 9 cm, and is externally provided with a scale of 0 to 500 mL.

[0022] Installation of the device:

[0023] First, insert the connecting rod hole 1-4-1 of the rubber valve 1-4 from the upper end of the connecting rod 1-1 to place the rubber valve 1-4 on the upper surface of the counterweight chassis 1-5. Then, position it with the fixing nut 1-3. Next, insert the shower pipe 3 and the funnel cylinder 2 from the upper end of the connecting rod 1-1. The upper end of the connecting rod 1-1 extends out from the support hole 2-3 at the upper end of the funnel cylinder 2. Then, connect the push-pull ring 1-2 to the upper end of the connecting rod 1-1. After connecting the push-pull ring 1-2 with the lifting rope, the installation of the device is completed.

[0024] Process of collecting groundwater samples by the device:

[0025] Push down the push-pull ring 1-2 to separate the rubber valve 1-4 from the shower pipe 3. The traction cord on the push-pull ring causes the device to fall to the sampling point. During the falling process, the self-weight of the funnel cylinder 2 is not sufficient to make the rubber valve 1-4 enter the shower pipe 3 (at this time, the friction between the rubber valve 1-4 and the shower pipe 3 is greater than the gravity of the funnel cylinder 2, and the presence of the counterweight chassis 1-5 makes one end of the shower pipe 3 of the device always vertically downward). When the device touches the water body, water enters the funnel cylinder 2 from the water inlet hole 3-1 of the shower pipe 3, and the exhaust port 2-2 provided on the lid 2-1 of the funnel cylinder 2 has the function of balancing the internal and external air pressures, accelerating the process of the device immersing in the water body. After the device is immersed in the water body, pull up the push-pull ring 1-2 through the cord. At this time, the friction between the rubber valve 1-4 and the shower pipe 3 is less than the gravity of the funnel cylinder 2 plus water, and the rubber valve 1-4 enters the shower pipe 3, making the water inlet hole 3-1 enter the sealed state. Lift the device out, and the groundwater sample collection is completed. Then, place the groundwater sample obtained by the device into the sample bottle 4. Push down the push-pull ring 1-2 to separate the rubber valve 1-4 from the shower pipe 3, and the water sample flows from the shower pipe 3 into the sample bottle 4 to complete the collection of the groundwater sample.

[0026] The above embodiments are only exemplary and do not limit the present invention. It should be pointed out that for those skilled in the art, under the inspiration of the technical solutions provided by the present invention, various other equivalent changes, modifications, substitutions, and variations should be regarded as within the protection scope of the present invention.

Claims

1. A fast and convenient groundwater sampling device, which consists of a push-pull opening and closing device, a funnel cylinder and a shower pipe, and is characterized in that: The middle part of the connecting rod of the push-pull opening and closing device is arranged inside the funnel cylinder and the shower pipe. The shower pipe is arranged at the lower end of the funnel cylinder. The rubber valve is arranged between the lower part directly below the shower pipe and the counterweight chassis. The push-pull opening and closing device consists of a connecting rod, a push-pull ring, a fixing nut, a rubber valve and a counterweight chassis. A connecting rod hole is opened at the center of the top end of the rubber valve. The push-pull ring is arranged at the upper end of the connecting rod and is threadedly connected with the connecting rod. The rubber valve is arranged between the fixing nut and the counterweight chassis. The funnel cylinder is composed of a cylinder cover, an exhaust port and a support hole. The support hole is arranged at the center of the cylinder cover, and the exhaust port is arranged on both sides of the support hole. A number of water inlet holes are opened on the pipe wall of the shower pipe. The push-pull ring is a stainless steel ring. A screw hole is arranged at the lower end of the push-pull ring. The connecting rod and the push-pull ring are connected through the external thread at the upper end of the connecting rod and the internal thread hole of the push-pull ring. The counterweight chassis is made of a stainless steel disc, and the diameter of the counterweight chassis is larger than the outer diameters of the shower pipe and the rubber valve.

2. The rapid and convenient groundwater sampling device according to claim 1, wherein: The lower thread of the connecting rod cooperates with the fixing nut to position the rubber valve between the counterweight chassis and the fixing nut.

3. A quick and convenient groundwater sampling device according to claim 1, characterized in that: The connecting rod moves up and down along the funnel cylinder and the shower pipe.

4. A rapid and convenient groundwater sampling device according to claim 1, characterized in that: The diameter of the fixing nut is larger than the diameter of the connecting rod hole of the rubber valve.

5. A rapid and convenient groundwater sampling device according to claim 1, characterized in that: The connecting rod is made of a solid stainless steel cylinder.

6. The rapid and convenient groundwater sampling device according to claim 1, characterized in that: The inner diameter of the shower pipe is larger than the outer diameter of the rubber valve.

7. A rapid and convenient groundwater sampling device according to claim 1, characterized in that: The shower pipe is fixedly connected with the funnel cylinder.

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