Underground water detection device

Abstract

According to the underground water detection device, ground nails and universal wheels are arranged at the bottoms of four table legs of a collection table, a through hole is formed in the middle of the table top of the collection table, the diameter of a sampling protection rod corresponds to the diameter of the through hole, the sampling protection rod is hollow, and a sampling protection rod drill bit is arranged at the bottom of the sampling protection rod; a water drawing window is arranged on the sampling protection rod drill bit, a rod body rack is arranged on the rod body portion of the sampling protection rod, and a control motor, a lifting gear, a sampling pump set and a controller are arranged on the table top of the collecting table. The sampling channel is established through the sampling protection rod, so that the sampling head is prevented from being polluted or blocked by foreign matters, multi-layer sampling can be carried out at the same position according to the length of the sampling protection rod, and the sampling equipment is backwashed through the water pump of the sampling pump set after sampling, so that the accuracy of each sampling is ensured, and the sampling efficiency is improved. Samples are prevented from polluting and blocking sampling equipment.

Description

Technical Field

[0001] The present application relates to the technical field of environmental detection equipment, and in particular to a groundwater detection device. Background Art

[0002] Groundwater is an important component of water resources and has a close relationship with human society. With its stable water supply conditions and good water quality, groundwater has become an important source of water for agricultural irrigation, industrial and mining enterprises, and urban domestic water.

[0003] Groundwater testing is an important part of ensuring groundwater safety. In the existing technology, a groundwater sampling device such as CN218349901U is connected to a sampling tube through a connecting pipe and is hoisted for sampling and testing.

[0004] This sampling method is prone to leaving contamination in the sampling tube during actual use, resulting in poor sampling accuracy. In addition, existing groundwater detection equipment may be blocked by foreign matter in the underground environment when extracting water samples, causing sampling failure. Utility Model Content

[0005] An embodiment of the present application provides a groundwater detection device to solve the problem in the prior art that groundwater detection equipment easily leaves contamination in the sampling tube during sampling, the sampling results are inaccurate, and the water sample may be blocked by foreign matter in the underground environment when being extracted, causing sampling failure.

[0006] In one aspect, an embodiment of the present application provides a groundwater detection device, comprising:

[0007] The collecting platform is a four-legged platform, and the bottoms of the four legs of the collecting platform are all provided with ground nails and universal wheels. A through hole is provided in the middle of the table top of the collecting platform, and the diameter of the sampling protection rod is set corresponding to the diameter of the through hole. There are multiple sampling protection rods, and the sampling protection rod is hollow. The bottom of the sampling protection rod is provided with a screw hole, and the top of the sampling protection rod is provided with a thread. The multiple sampling protection rods are screwed together through the screw hole and the thread. The screw hole at the bottom of the sampling protection rod is screwed with a sampling protection rod drill bit, and the sampling protection rod drill bit is provided with a water drawing window. The rod body of the sampling protection rod is provided with a rod body rack. A control motor, a lifting gear, a sampling pump group and a controller are provided on the table top of the collecting platform. The control motor is fixedly connected to the lifting gear through a control connecting rod, and the tooth pitch of the lifting gear corresponds to the rod body rack of the sampling protection rod.

[0008] The water-drawing window is provided with two layers, the outer hollow portion of the water-drawing window and the inner non-hollow portion of the water-drawing window have the same area, the inner layer of the water-drawing window is freely rotatable within the water-drawing window, and a tenon is provided inside the inner layer of the water-drawing window;

[0009] The sampling port and flushing port of the sampling pump group are respectively connected to a sampling tube, and a sampling head is fixedly provided at the end of the sampling tube, the diameter of the sampling head is set corresponding to the inner diameter of the sampling protection rod, and a notch is provided at the bottom of the sampling head corresponding to the tenon of the inner layer of the water drawing window;

[0010] The control motor and the sampling pump group are electrically connected to the controller.

[0011] In one possible implementation, the flushing port and the sampling port are both connected to the sampling tube via a snap, the sampling port is connected to the sample storage box via the sampling pump of the sampling pump group, and the flushing port is connected to the clean water tank via the flushing pump of the sampling pump group.

[0012] In a possible implementation, the four ground spikes are hung on the outer sides of the four legs of the collection platform through an upper fixing ring and a lower fixing ring. A notch and a hook channel are provided on the upper fixing ring. The width of the notch and the hook channel corresponds to the diameter of the hook on the ground spike.

[0013] In a possible implementation, a pedal is provided on the top of the ground spike, and the width of the pedal corresponds to the diameter of the ground spike.

[0014] In a possible implementation, the four universal wheels are fixedly disposed on inner sides of four legs of the collection platform.

[0015] In a possible implementation, brake pads are provided on each of the four universal wheels.

[0016] The groundwater detection device in this application has the following advantages:

[0017] (1) After reaching the groundwater layer to be tested, a sampling channel is established through the sampling protection rod to prevent the sampling head from being contaminated or blocked by foreign matter.

[0018] (2) The length of the sampling protection rod is set according to the sampling plan, and sampling can be carried out at multiple levels at the same location.

[0019] (3) The sampling equipment is backwashed after sampling through the water pump of the sampling pump group to ensure the accuracy of each sampling and avoid sample contamination and clogging of the sampling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A side view schematic diagram of a groundwater detection device provided in an embodiment of the present application;

[0022] Figure 2 A schematic top view of a groundwater detection device provided in an embodiment of the present application;

[0023] Figure 3 Schematic diagram of a ground spike for a groundwater detection device provided in an embodiment of the present application.

[0024] Explanation of the numbers in the figure: 1. Collection platform; 11. Control motor; 111. Control connecting rod; 113. Lifting gear; 12. Ground nail; 121. Upper fixing ring; 122. Lower fixing ring; 13. Universal wheel; 2. Sampling protection rod; 21. Water drawing window; 22. Sampling protection rod drill bit; 3. Sampling pump group; 31. Sampling port; 311. Sampling pump; 312. Sample storage box; 32. Flushing port; 321. Flushing pump; 322. Clean water tank; 33. Sampling tube; 34. Sampling head; 4. Controller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] Figure 1 A signal transmission diagram of a groundwater detection device provided in an embodiment of the present application; an embodiment of the present application provides a groundwater detection device, comprising:

[0027] The collecting platform 1 is a four-legged platform. The bottoms of the four legs of the collecting platform 1 are all provided with ground nails 12 and universal wheels 13. A through hole is provided in the middle of the table top of the collecting platform 1. The diameter of the sampling protection rod 2 corresponds to the diameter of the through hole. There are multiple sampling protection rods 2. The sampling protection rod 2 is hollow. The bottom of the sampling protection rod 2 is provided with a screw mouth. The top of the sampling protection rod 2 is provided with a thread. The multiple sampling protection rods 2 are screwed together through the screw mouth and the thread. The screw mouth at the bottom of the sampling protection rod 2 is screwed with a sampling protection rod drill bit 22. The sampling protection rod drill bit 22 is provided with a water drawing window 21. The rod body of the sampling protection rod 2 is provided with a rod body rack. The table top of the collecting platform 1 is provided with a control motor 11, a lifting gear 113, a sampling pump group 3 and a controller 4. The control motor 11 is fixedly connected to the lifting gear 113 through a control connecting rod 111. The tooth pitch of the lifting gear 113 corresponds to the rod body rack of the sampling protection rod 2.

[0028] The water-drawing window 21 is provided with two layers. The outer hollow portion of the water-drawing window 21 is equal in area to the inner non-hollow portion of the water-drawing window 21. The inner layer of the water-drawing window 21 is freely rotatable within the water-drawing window 21. A tenon is provided inside the inner layer of the water-drawing window 21.

[0029] The sampling port 31 and the flushing port 32 of the sampling pump group 3 are respectively connected to a sampling tube 33, and a sampling head 34 is fixedly provided at the end of the sampling tube 33. The diameter of the sampling head 34 corresponds to the inner diameter of the sampling protection rod 2, and the bottom of the sampling head 34 is provided with a notch corresponding to the tenon of the inner layer of the water drawing window 21;

[0030] The control motor 11 and the sampling pump group 3 are electrically connected to the controller 4 .

[0031] For example, when conducting groundwater detection operations, first open up a channel to the point to be detected, then set up the collection platform 1 directly above the channel, fix the collection platform 1 by the ground nails 12 and the universal wheels 13, and then assemble multiple sampling protection rods 2 according to the length of the channel and put them into the channel from the collection platform 1. The controller 4 controls the forward and reverse rotation of the control motor 11 to drive the lifting gear 113, and the lifting gear 113 drives the rack of the sampling protection rod 2, and then drives the sampling protection rod 2 to move up and down, and put the sampling protection rod 2 into the channel. The sampling protection rod 2 is hollow inside, which can prevent the sampling head 34 from contacting the channel wall and being contaminated when it descends through the channel. A sampling protection rod drill bit 22 is provided at the bottom of the sampling protection rod 2 for clearing the channel when the channel is blocked or obstructed. A water drawing window 21 is provided on the sampling protection rod drill bit 22. When the sampling protection rod 2 descends, the hollow parts of the inner and outer layers of the water drawing window 21 are in an interlaced state, closing the water drawing window 21. When the sampling protection rod 2 is lowered into place, the sampling head 34 is placed into the sampling through the sampling tube 33. The hollow part of the protection rod 2, when the sampling head 34 is lowered to the top of the sampling protection rod drill bit 22, the bottom notch of the sampling head 34 is engaged with the tenon of the inner layer of the water-drawing window 21. At this time, the sampling tube 33 is rotated to drive the sampling head 34 to rotate, and at the same time, the inner layer of the water-drawing window 21 is rotated. The inner and outer hollow layers of the water-drawing window 21 are in an overlapping state. The water-drawing window 21 is opened, and then the end of the sampling tube 33 outside the channel is connected to the sampling port 31. The sampling pump group 3 is driven to draw groundwater from the outside of the water-drawing window 21 through the sampling head 34 and The sampling tube 33 collects water into the sampling port 31. After the sampling is completed, the end of the sampling tube 33 is connected to the flushing port 32. The flushing port 32 flushes clean water into the sampling tube 33 through the sampling pump group 3 to backwash the sampling tube 33, the sampling head 34 and the water drawing window 21. At the same time, the inside of the sampling protection rod 2 is cleaned by pulling up the sampling head 34 to ensure that subsequent operations will not be contaminated by the sampling of this operation. Finally, the sampling tube 33 is rotated to drive the water drawing window 21 to close, and then the sampling head 34 is pulled out to end the sampling operation.

[0032] In a possible embodiment, the flushing port 32 and the sampling port 31 are both connected to the sampling tube 33 through a snap, the sampling port 31 is connected to the sample storage box 312 through the sampling pump 311 of the sampling pump group 3, and the flushing port 32 is connected to the clean water tank 322 through the flushing pump 321 of the sampling pump group 3.

[0033] Exemplarily, the sampling pump 311 connects to the sampling head 34 through the sampling port 31 to take samples and collects the samples into the sample storage box 312. After the sampling is completed, the flushing pump 321 backwashes the clean water in the clean water tank 322 through the flushing port 32 to the sampling tube 33, the sampling head 34 and the water drawing window 21 to complete the backwashing of the device.

[0034] In a possible embodiment, the four ground spikes 12 are hung on the outer sides of the four legs of the collection platform 1 through an upper fixing ring 121 and a lower fixing ring 122. The upper fixing ring 121 is provided with a notch and a hook channel. The width of the notch and the hook channel is set to correspond to the diameter of the hook on the ground spike 12.

[0035] A pedal is provided on the top of the ground nail 12 , and the width of the pedal corresponds to the diameter of the ground nail 12 .

[0036] For example, when the device is used on a non-hardened road surface, the collection platform 1 is fixed in place by a ground nail 12. The ground nail 12 is provided with a pedal. When in use, the hook of the ground nail 12 is moved from the notch on the upper fixing ring 121 to the hook channel of the upper fixing ring 121, and then the ground nail 12 is nailed into the ground by stepping on or hammering the pedal. After the operation is completed, the ground nail 12 is lifted out, and the hook is allowed to pass through the hook channel to the top of the upper fixing ring 121, and the ground nail 12 is rotated to hang the ground nail 12 on the notch of the upper fixing ring 121 through the hook, and then the device is transferred through the universal wheel 13.

[0037] In a possible embodiment, the four universal wheels 13 are fixedly disposed on the inner side surfaces of the four legs of the collection platform 1 , and brake pads are provided on the four universal wheels 13 .

[0038] For example, on a hardened road or a stone road, the collecting platform 1 is fixed by pressing the brake pads on the universal wheels 13 .

[0039] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0040] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A groundwater detection device, characterized in that: include: The collecting table (1) is a four-legged table. The bottoms of the four legs of the collecting table (1) are all provided with ground nails (12) and universal wheels (13). A through hole is provided in the middle of the table top of the collecting table (1). The diameter of the sampling protection rod (2) corresponds to the diameter of the through hole. A plurality of the sampling protection rods (2) are provided. The sampling protection rods (2) are hollow. A screw hole is provided at the bottom of the sampling protection rod (2). A thread is provided at the top of the sampling protection rod (2). A plurality of the sampling protection rods (2) are screwed together through the screw hole and the thread. The bottom of the rod (2) is screwed with a sampling protection rod drill bit (22), and the sampling protection rod drill bit (22) is provided with a water drawing window (21). The rod body of the sampling protection rod (2) is provided with a rod body rack. The table surface of the collection platform (1) is provided with a control motor (11), a lifting gear (113), a sampling pump group (3) and a controller (4). The control motor (11) is fixedly connected to the lifting gear (113) through a control connecting rod (111), and the tooth pitch of the lifting gear (113) corresponds to the setting of the rod body rack of the sampling protection rod (2); The water-drawing window (21) is provided with two layers, the outer hollow portion of the water-drawing window (21) and the inner non-hollow portion of the water-drawing window (21) are equal in area, the inner layer of the water-drawing window (21) is freely rotatable within the water-drawing window (21), and a tenon is provided inside the inner layer of the water-drawing window (21); The sampling port (31) and the flushing port (32) of the sampling pump group (3) are respectively connected to a sampling tube (33), and a sampling head (34) is fixedly provided at the end of the sampling tube (33), the diameter of the sampling head (34) is set to correspond to the inner diameter of the sampling protection rod (2), and a notch is provided at the bottom of the sampling head (34) corresponding to the inner layer of the water drawing window (21); The control motor (11) and the sampling pump group (3) are electrically connected to the controller (4).

2. A groundwater detection device according to claim 1, characterized in that: The flushing port (32) and the sampling port (31) are both connected to the sampling tube (33) via a snap fastener; the sampling port (31) is connected to the sample storage box (312) via the sampling pump (311) of the sampling pump group (3); and the flushing port (32) is connected to the clean water tank (322) via the flushing pump (321) of the sampling pump group (3).

3. The groundwater detection device according to claim 1, characterized in that: The four ground spikes (12) are hung on the outer side surfaces of the four legs of the collection platform (1) through an upper fixing ring (121) and a lower fixing ring (122); a notch and a hook channel are provided on the upper fixing ring (121); the widths of the notch and the hook channel are set to correspond to the diameter of the hook on the ground spike (12).

4. A groundwater detection device according to claim 3, characterized in that: A pedal is provided on the top of the ground nail (12), and the width of the pedal corresponds to the diameter of the ground nail (12).

5. The groundwater detection device according to claim 1, characterized in that: The four universal wheels (13) are fixedly arranged on the inner side surfaces of the four legs of the collection platform (1).

6. A groundwater detection device according to claim 5, characterized in that: Brake pads are provided on the four universal wheels (13).

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