Underground water collecting device

Abstract

The utility model discloses an underground water collecting device, which relates to the technical field of water quality detection and comprises a collecting pipe and a base, a movable lifting floater is arranged between the base and the collecting pipe, a sliding column is arranged at the bottom of the collecting pipe, a baffle is arranged on the upper portion of the sliding column, the lifting floater comprises a conical floating column, and a floating ball is arranged on the conical portion of the conical floating column. The conical floating column is provided with a sliding groove corresponding to the sliding column, the conical floating column is provided with a side groove formed in the radial direction and a center groove formed in the axial direction, the center groove is communicated with the side groove, the center groove is provided with a filtering column, the base comprises a horn mouth corresponding to the conical part and a liquid inlet, and the liquid inlet and the floating ball are in floating clamping sealing fit. According to the underground water sampling device, underground water is convenient to sample, clean and clear underground water is obtained by filtering the underground water through the filtering column of the lifting floater, silt in an underground cave is prevented from entering the collecting pipe, the underground water does not need to be further purified, and the detection efficiency of underground water detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a groundwater collection device. Background Art

[0002] Groundwater refers to water that exists in the pores of rocks below the ground. In a narrow sense, it refers to water in saturated aquifers below the groundwater surface. Groundwater is an important component of water resources. Due to its stable water volume and good water quality, it is one of the important water sources for agricultural irrigation, industry, mining and cities. In the process of taking groundwater, it is necessary to sample and test groundwater to better understand the water quality and hydrology of groundwater. In the existing technology, the sampling and collection device is usually an ordinary sampling tube. In the process of groundwater sampling, impurities, silt, etc. in the groundwater will also be collected by the sampling tube. Therefore, after sampling, the groundwater sample needs to be further clarified to remove silt in order to detect the groundwater quality. Therefore, the existing groundwater sampling tube is troublesome to sample, very inconvenient, and needs to be purified later, which affects the detection efficiency of groundwater. Utility Model Content

[0003] The utility model aims to provide a groundwater sampling device, aiming to solve the problem that underground mud and sand are easily taken out when sampling groundwater, and sampling requires subsequent groundwater purification before detection.

[0004] The utility model provides a technical solution as follows: a groundwater collection device, comprising a hollow collection tube and a base arranged at the bottom of the collection tube, a movable lifting float is arranged between the base and the collection tube, a pair of sliding columns for positioning and lifting the lifting float is arranged at the bottom of the collection tube, a ring-shaped baffle is arranged on the upper part of the sliding column for limiting the upper end of the lifting float, the lifting float comprises a conical floating column, the bottom of the conical floating column has a conical portion, the conical portion is provided with a floating ball with a hollow structure inside, the conical floating column is provided with a sliding groove corresponding to the sliding column, the conical floating column is provided with radially arranged side grooves and axially arranged center grooves, and the center groove is connected with the side grooves, a filter column is installed on the center groove, the base comprises a bell mouth corresponding to the conical portion and a liquid inlet connected to the bell mouth, and a floating clamping sealing fit is formed between the liquid inlet and the floating ball. When sampling groundwater, the collection tube is inserted into the groundwater cave. The groundwater is squeezed by pressure to make the lifting float rise. The float ball of the lifting float opens the liquid inlet. The groundwater flows into the gap between the conical floating column and the collection tube through the liquid inlet, and passes through the side groove of the conical floating column and the filter column on the central groove to enter the interior of the collection tube. Therefore, the water sampled by the groundwater is filtered by the filter column, which prevents the mud and sand in the groundwater cave from entering the interior of the collection tube. When the collection tube is lifted, the lifting float falls back to the base due to the action of gravity and is clamped on the liquid inlet by the float ball to form a seal, which prevents the groundwater collected by the collection tube from flowing back to the outside from the liquid inlet.

[0005] Furthermore, the base is provided with a sealing ring groove on the inner wall of the liquid inlet near the bell mouth, and a sealing ring is provided on the sealing ring groove. When the lifting float falls on the base, the float is clamped on the liquid inlet, and a sealing effect is formed through the sealing ring.

[0006] Furthermore, a pair of lifting rope buckles are provided at the upper end of the collection tube, and lifting ropes are tied to the lifting rope buckles.

[0007] Furthermore, a water inlet channel is reserved between the conical floating column and the inside of the collection pipe for groundwater to enter from the side. When the lifting float rises, a water inlet channel with a certain gap is provided between the conical floating column and the inside of the collection pipe, and groundwater flows into the space between the collection pipe and the lifting float through the water inlet channel, and enters the inside of the collection pipe after being filtered through the filter column on the central groove through the side groove.

[0008] Furthermore, the baffle plate has a ring-shaped size that can block the water inlet channel. Furthermore, when the lifting float rises to the baffle plate, the baffle plate can block the water inlet channel from the side, preventing groundwater from directly entering the interior of the collection pipe from the water inlet channel between the lifting float and the collection pipe. Due to the shielding effect of the baffle plate, groundwater can only enter the interior of the collection pipe after passing through the water inlet channel between the lifting float and the collection pipe and then being filtered by the filter column on the central groove through the side groove, thereby ensuring that groundwater can be filtered in the process of entering the interior of the collection pipe.

[0009] Furthermore, the radius of the float is greater than the height of the liquid inlet. When the float is clamped in the liquid inlet, the float protrudes on the end surface of the liquid inlet, so that during the sampling process, the float can be pressed into the collection tube, and the float slowly rises under the pressure of the groundwater, thereby realizing the rapid sampling of groundwater from the liquid inlet; after sampling, the float can also be pressed into the collection tube, and the groundwater inside the collection tube can flow out of the collection tube through the gap between the float and the liquid inlet.

[0010] The utility model is convenient for groundwater sampling. During the sampling process, clean and clear groundwater is filtered through the filter column with a lifting float, which prevents mud and sand in the underground cave from entering the collection tube. The groundwater collected by the collection device does not need to be further purified, thereby improving the detection efficiency of groundwater detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model.

[0012] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 3 for Figure 1 Main view.

[0014] Figure 4 for Figure 3 Schematic diagram of the cross section along the AA direction.

[0015] Figure 5 for Figure 4 A is a partial enlarged schematic diagram.

[0016] Figure 6 for Figure 3 Schematic diagram of the cross section along the BB direction.

[0017] Figure 7 This is a schematic diagram of the three-dimensional structure of the collection tube.

[0018] Figure 8 It is a schematic diagram of the three-dimensional structure of the lifting float.

[0019] Fig. 9 It is a schematic diagram of the three-dimensional decomposition structure of the lifting float.

[0020] Fig.10 This is a schematic diagram of the three-dimensional structure of the base.

[0021] Fig.11 for Fig.10 Schematic diagram of the internal cross section.

[0022] Among them: 1-collection tube, 11-lifting rope buckle, 12-sliding column, 13-baffle, 2-base, 21-trumpet, 22-liquid inlet, 23-sealing ring groove, 3-lifting rope, 4-lifting float, 41-conical floating column, 411-sliding groove, 412-side groove, 413-center groove, 414-conical part, 42-filter column, 43-floating ball, 5-sealing ring, 6-water inlet channel. DETAILED DESCRIPTION

[0023] The following is a brief description of the implementation of the present utility model in conjunction with the accompanying drawings.

[0024] A groundwater collection device, referring to 1- Figure 5 The utility model comprises a hollow collection tube 1 and a base 2 arranged at the bottom of the collection tube 1. A pair of lifting rope buckles 11 are arranged at the upper end of the collection tube 1. A lifting rope 3 is tied to the lifting rope buckle 11. The lifting rope 3 can further extend the use distance of the collection device. Especially in the case of a deep underground cave, the lifting rope 3 is used to push the collection device deeper into the underground cave, thereby improving the use range of the collection device. A movable lifting float 4 is arranged between the base 2 and the collection tube 1.

[0025] Reference Figure 7 A pair of sliding columns 12 are provided at the bottom of the collection tube 1 for positioning and lifting the lifting float 4. A ring-shaped baffle 13 is provided on the upper part of the sliding column 12 for limiting the upper end of the lifting float 4. Figure 8 , Fig. 9 The lifting float 4 includes a conical floating column 41, the bottom of which has a conical portion 414, a floating ball 43 with a hollow structure inside is provided on the conical portion 414, and the conical floating column 41 is provided with a sliding groove 411 corresponding to the sliding column 12. The lifting float 4 can better float up and down on the sliding column 12 of the collection tube 1 through the sliding cooperation of the sliding groove 411 and the sliding column 12, and the lifting float 4 is limited at the upper end by the annular baffle 13 to avoid the loss of groundwater in the collection tube 1 caused by the lifting float 4 rising up and causing the lifting float 4 to fall for too long after the sample is taken out.

[0026] The conical floating column 41 is provided with radially arranged side grooves 412 and axially arranged central grooves 413, and the central grooves 413 are connected with the side grooves 412, and a filter column 42 is installed on the central groove 413. Figure 6 A water inlet channel 6 is reserved between the conical floating column 41 and the inside of the collection tube 1 for groundwater to enter from the side. Since there is a certain gap between the conical floating column 41 and the inside of the collection tube 1, the groundwater 1 flows into the space between the collection tube 1 and the lifting float 4 through the water inlet channel 6, and enters the inside of the collection tube 1 after being filtered through the filter column 42 on the central groove 413 through the side groove 412. Therefore, the sampling of groundwater realizes sampling and filtering, and prevents the mud and sand in the groundwater cave from entering the inside of the collection tube 1. Of course, in order to better achieve the filtering effect of groundwater during the sampling process, The annular size of the baffle 13 can block the water inlet channel 6. Furthermore, when the lifting float 4 rises to the baffle 13, the baffle 13 can block the water inlet channel 6 from the side, preventing groundwater from directly entering the interior of the collection pipe 1 from the water inlet channel 6 between the lifting float 4 and the collection pipe 1. That is, due to the shielding effect of the baffle 13, groundwater can only pass through the water inlet channel 6 between the lifting float 4 and the collection pipe 1 and then enter the interior of the collection pipe 1 after being filtered by the filter column 42 on the central groove 413 through the side groove 412, thereby ensuring that groundwater can be filtered in the process of entering the interior of the collection pipe 1.

[0027] Reference Fig.10 , Fig.11 The base 2 includes a bell mouth 21 corresponding to the conical portion 414 and a liquid inlet 22 connected to the bell mouth 21. The base 2 is provided with a sealing ring groove 23 on the inner wall of the liquid inlet 22 near the bell mouth 21. The sealing ring groove 23 is provided with a sealing ring 5. Figure 5 When the lifting float 4 falls on the base 2, a wedge fit is formed between the tapered portion 414 of the tapered floating column 41 and the bell mouth 21 of the base 2, and the float 43 is clamped on the liquid inlet 22, and a sealing effect is formed through the sealing ring 5, thereby achieving a sealing effect of the lifting float 4 on the liquid inlet 22. Therefore, the sealing of the liquid inlet 22 is guaranteed after the lifting float 4 falls to the base 2 by gravity, thereby preventing the sampled groundwater from leaking out from the liquid inlet 22.

[0028] According to the utility model, when sampling groundwater, the collection device inserts the collection tube 1 into the groundwater cave, and the groundwater is squeezed by pressure to make the lifting float 4 rise, and the float ball 43 of the lifting float 4 opens the liquid inlet 22, and the groundwater flows into the gap between the conical floating column 41 and the collection tube 1 through the liquid inlet 22 to form a water inlet channel 6, and enters the inside of the collection tube 1 after being filtered by the filter column 42 on the central groove 413 through the side groove 412 of the conical floating column 41, so that the water sampled by the groundwater is filtered by the filter column 42, and the mud and sand in the groundwater cave are prevented from entering the inside of the collection tube 1. When the collection tube 1 is lifted, the lifting float 4 falls back on the base 2 due to the action of gravity and is clamped on the liquid inlet 22 by the float ball 43 to form a seal, so that the groundwater collected by the collection tube 1 is prevented from flowing back to the outside from the liquid inlet 22.

[0029] In this embodiment, in order to more conveniently collect groundwater, the radius of the float 42 is greater than the height of the liquid inlet 22, and when the float 42 is stuck in the liquid inlet 22, the float 43 protrudes from the end surface of the liquid inlet 22, so that during the sampling process, the float 43 can be pressed into the collection tube 1 by external support, and the float 43 slowly rises under the pressure of the groundwater, thereby realizing rapid sampling of groundwater from the liquid inlet 22. In this way, when the groundwater pressure is not large, the float 43 can be better utilized. When the groundwater pressure is difficult to open the float 43 after the float 43 is stuck in the liquid inlet 22, the external force is used to help the groundwater open the float 43; similarly, after sampling, the float 43 can be pressed into the collection tube 1, and the groundwater inside the collection tube 1 flows out of the collection tube 1 through the gap between the float 43 and the liquid inlet 22, thereby realizing the removal of groundwater in the collection tube 1 for detection.

[0030] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A groundwater collection device, characterized in that: The utility model comprises a hollow collecting tube and a base arranged at the bottom of the collecting tube, a movable lifting float is arranged between the base and the collecting tube, a pair of sliding columns for positioning and lifting the lifting float is arranged at the bottom of the collecting tube, a ring-shaped baffle is arranged on the upper part of the sliding column for limiting the upper end of the lifting float, the lifting float comprises a conical floating column, the bottom of the conical floating column has a conical portion, the conical portion is provided with a floating ball with a hollow structure inside, the conical floating column is provided with a sliding groove corresponding to the sliding column, the conical floating column is provided with radially arranged side grooves and axially arranged center groove, and the center groove is connected with the side groove, and a filter column is installed on the center groove, the base comprises a bell mouth corresponding to the conical portion and a liquid inlet connected to the bell mouth, and a floating card-fitting sealing cooperation is formed between the liquid inlet and the floating ball.

2. A groundwater collection device according to claim 1, characterized in that: The base is provided with a sealing ring groove on the inner wall of the liquid inlet near the bell mouth, and a sealing ring is provided on the sealing ring groove.

3. A groundwater collection device according to claim 1, characterized in that: A pair of lifting rope buckles are provided at the upper end of the collection tube, and lifting ropes are tied to the lifting rope buckles.

4. A groundwater collection device according to claim 1, characterized in that: A water inlet channel is reserved between the conical floating column and the interior of the collection pipe for groundwater to enter from the side.

5. A groundwater collection device according to claim 4, characterized in that: The baffle has a ring-shaped size capable of shielding the water inlet channel.

6. A groundwater collection device according to claim 1, characterized in that: The radius of the float is greater than the height of the liquid inlet.

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