Underground water sampling and well washing device

Abstract

The utility model relates to the technical field of well washing, and discloses an underground water sampling and well washing device, the sampling device is composed of a box body, a rotating shaft, a door body, a connecting rod, a fixed shaft, a sliding block, a spring, a filter screen, a shaft rod, a spiral blade and a scraping plate, the box body is fixedly installed at the bottom of a telescopic pipe, the rotating shaft is rotatably installed in the box body, and the door body is installed in the box body. The door body is fixedly installed on the surface of the rotating shaft, one end of the connecting rod is hinged to the side face of the door body, the fixing shaft is fixedly installed in the box body, and the sliding block is installed on the surface of the fixing shaft in a sliding mode. According to the underground water sampling and well washing device, the water pump is driven, negative pressure is generated in the box body, the door body can be rotated, sampling water can enter the box body, vortex is generated when the sampling water passes through the circular-truncated-cone-shaped groove, a spiral blade can drive a shaft rod to rotate, and therefore a scraping plate rotates, impurities on the surface of a filter screen can be scraped away, the filter screen is prevented from being blocked by the impurities, and the service life of the underground water sampling and well washing device is prolonged. And the sampling efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water well washing, in particular to a groundwater sampling well washing device. Background Art

[0002] Well flushing refers to the process in which, due to engineering needs, during well repair operations, the well flushing medium is injected through the wellbore or drill pipe by pumping equipment to carry the substances (liquid, solid, gas phase) in the wellbore to the ground, thereby changing the medium properties in the wellbore to meet the operation requirements.

[0003] The patent with application number 202321176151.3 discloses a groundwater well washing sampling device, including a protective pipe, a sampling tube is arranged inside the protective pipe, a protective component is arranged between the sampling tube and the inner wall of the protective pipe, a telescopic tube is arranged at the lower part of the sampling tube, a float is arranged at the connection between the telescopic tube and the sampling tube, a sampling head is arranged at the lower end of the telescopic tube, a pressure plate is arranged at the top end of the sampling tube, the top end of the sampling tube is connected to the sampling bottle through a connecting pipe, and the sampling bottle is connected to a water pump.

[0004] The groundwater well washing sampling device adopts new components and a new connection relationship, abandons the traditional Bailer tube sampling and other sampling methods, uses a sampling head to go deep into the well, and is connected to a sampling bottle to ensure the efficiency of sampling. However, there are still areas for improvement. For example, when the sampling head of the device enters the water, the upper water will also enter the sampling bottle, affecting the accuracy of water sampling. After the device has been used for a period of time, the circular plate will become clogged, affecting the sampling efficiency and failing to meet current needs. Utility Model Content

[0005] The purpose of the utility model is to provide a groundwater sampling and well washing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a groundwater sampling and well washing device, comprising a water pump, a sampling bottle, a sampling tube, a protective component, a telescopic tube, and a sampling device, wherein the sampling bottle is arranged on the outside of the water pump, the sampling tube is arranged on the side of the sampling bottle, the protective component is arranged on the outside of the sampling tube, the telescopic tube is arranged at the bottom of the sampling tube, and the sampling device is arranged at the bottom of the telescopic tube.

[0007] The sampling device consists of a box body, a rotating shaft, a door body, a connecting rod, a fixed shaft, a slider, a spring, a filter screen, a shaft rod, a spiral blade, and a scraper. The box body is fixedly installed at the bottom of the telescopic tube, the rotating shaft is rotatably installed inside the box body, the door body is fixedly installed on the surface of the rotating shaft, one end of the connecting rod is hinged to the side of the door body, the fixed shaft is fixedly installed inside the box body, the slider is slidably installed on the surface of the fixed shaft, the spring is sleeved on the surface of the fixed shaft, the filter screen is fixedly installed inside the box body, the shaft rod is rotatably installed at the bottom of the filter screen, the spiral blade is fixedly installed on the surface of the shaft rod, and the scraper is fixedly installed on the surface of the shaft rod.

[0008] Preferably, a truncated cone-shaped groove which is smaller at the top and larger at the bottom is provided inside the box, and a filter screen is arranged in the middle of the truncated cone-shaped groove. This arrangement can generate vortex when the sampled water passes through the truncated cone-shaped groove, and can cause the spiral blade to rotate.

[0009] Preferably, the other end of the connecting rod connected to the door body is hinged to the slider, and this arrangement allows the connecting rod to drive the slider to move on the surface of the fixed axis through the rotation of the door body.

[0010] Preferably, one end of the spring is connected to the box body, and the other end of the spring is connected to the slider, and a spring is provided for resetting the slider.

[0011] Preferably, the scraper is in close contact with the filter screen, and the scraper is provided to scrape off the debris on the surface of the filter screen to prevent the debris from clogging the filter screen.

[0012] Preferably, a weight block is fixedly installed on the bottom of the box, and this arrangement ensures the vertical state of the box in the sampled water, which is conducive to the subsequent maintenance of the sampling depth of the sampled water.

[0013] Preferably, the water pump, sampling bottle, sampling tube, telescopic tube, and sampling device are connected in sequence. By driving the water pump, the sampled water can pass through the sampling device, telescopic tube, and sampling tube in sequence to reach the sampling bottle for centralized collection, thereby ensuring the sampling efficiency.

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

[0015] (1) The groundwater sampling and well washing device places the box at a specified depth in the sampling water through a telescopic tube. Under the action of the spring, the sealing between the door body and the box body is ensured, so that the sampling water will not enter the box body, avoiding subsequent influence on the detection result of the sampling water.

[0016] (2) The groundwater sampling and well washing device generates negative pressure in the box by driving the water pump, which can cause the door to rotate, and the sampling water will enter the interior of the box. When the sampling water passes through the truncated cone groove, eddy currents will be generated, which can cause the spiral blades to drive the shaft to rotate, thereby causing the scraper to rotate, and the debris on the surface of the filter can be scraped off to avoid the debris clogging the filter, thereby ensuring the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the box body, door body and telescopic tube structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting rod, the fixed shaft and the sliding block of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the filter screen, shaft rod and spiral blades of the utility model.

[0021] In the figure: 1. water pump; 2. sampling bottle; 3. sampling tube; 4. protective component; 5. telescopic tube; 6. sampling device; 601. box body; 602. rotating shaft; 603. door body; 604. connecting rod; 605. fixed shaft; 606. slider; 607. spring; 608. filter; 609. shaft; 610. spiral blade; 611. scraper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a groundwater sampling and well washing device, comprising a water pump 1, a sampling bottle 2, a sampling tube 3, a protective component 4, a telescopic tube 5, and a sampling device 6. The sampling bottle 2 is arranged outside the water pump 1, the sampling tube 3 is arranged on the side of the sampling bottle 2, the protective component 4 is arranged outside the sampling tube 3, the telescopic tube 5 is arranged at the bottom of the sampling tube 3, and the sampling device 6 is arranged at the bottom of the telescopic tube 5. The water pump 1, the sampling bottle 2, the sampling tube 3, the telescopic tube 5, and the sampling device 6 are connected in sequence. By driving the water pump 1, the sampled water can pass through the sampling device 6, the telescopic tube 5, and the sampling tube 3 in sequence to reach the sampling bottle 2 for centralized collection, thereby ensuring the sampling efficiency.

[0024] The sampling device 6 is composed of a box body 601, a rotating shaft 602, a door body 603, a connecting rod 604, a fixed shaft 605, a slider 606, a spring 607, a filter screen 608, a shaft 609, a spiral blade 610, and a scraper 611. The box body 601 is fixedly installed at the bottom of the telescopic tube 5. A weight block is fixedly installed at the bottom of the box body 601. This arrangement ensures that the box body 601 is in a vertical state in the sampled water, which is conducive to the subsequent maintenance of the sampling depth of the sampled water. The rotating shaft 602 is rotated to The door 603 is fixedly mounted on the surface of the rotating shaft 602, and a sealing strip is arranged between the door 603 and the box 601 to ensure the sealing between the door 603 and the box 601. One end of the connecting rod 604 is hinged to the side of the door 603, and the fixed shaft 605 is fixedly mounted inside the box 601. The slider 606 is slidably mounted on the surface of the fixed shaft 605. The other end of the connecting rod 604 connected to the door 603 is hinged to the slider 606. The door body 603 is arranged to rotate so that the connecting rod 604 can drive the slider 606 to move on the surface of the fixed shaft 605. The spring 607 is sleeved on the surface of the fixed shaft 605. One end of the spring 607 is connected to the box body 601, and the other end of the spring 607 is connected to the slider 606. The spring 607 is provided to reset the slider 606. The filter screen 608 is fixedly installed inside the box body 601. The box body 601 is provided with a truncated cone-shaped groove with a small top and a large bottom. The filter screen 608 is fixedly installed inside the box body 601. The box body 601 is provided with a truncated cone-shaped groove with a small top and a large bottom. 08 is arranged in the middle of the truncated cone shaped groove. This arrangement can generate a vortex when the sampled water passes through the truncated cone shaped groove, and can make the spiral blade 610 rotate. The shaft 609 is rotatably installed at the bottom of the filter screen 608. The spiral blade 610 is fixedly installed on the surface of the shaft 609. The scraper 611 is fixedly installed on the surface of the shaft 609. The scraper 611 is in close contact with the filter screen 608. The scraper 611 is arranged to scrape off the debris on the surface of the filter screen 608 to prevent the debris from clogging the filter screen 608.

[0025] When in use, the box 601 is placed at a specified depth in the sampled water through the telescopic tube 5. Under the action of the spring 607, the sealing between the door body 603 and the box body 601 is ensured, so that the sampled water will not enter the box body 601, avoiding subsequent influence on the detection result of the sampled water. The water pump 1 is driven to generate negative pressure in the box body 601, which can rotate the door body 603, so that the connecting rod 604 drives the slider 606 to move on the surface of the fixed shaft 605 and squeeze the spring 607, and the sampled water will enter the interior of the box body 601. When the sampled water passes through the truncated cone groove, eddy currents are generated, which can drive the spiral blade 610 to drive the shaft 609 to rotate, thereby rotating the scraper 611, and the debris on the surface of the filter screen 608 can be scraped off to avoid the debris clogging the filter screen 608. The sampled water then reaches the sampling bottle 2 through the telescopic tube 5 and the sampling tube 3 for centralized collection, thereby ensuring the sampling efficiency.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A groundwater sampling and well washing device, comprising a water pump (1), a sampling bottle (2), a sampling tube (3), a protective component (4), a telescopic tube (5), and a sampling device (6), characterized in that: The sampling bottle (2) is arranged outside the water pump (1), the sampling tube (3) is arranged on the side of the sampling bottle (2), the protection component (4) is arranged outside the sampling tube (3), the telescopic tube (5) is arranged at the bottom of the sampling tube (3), and the sampling device (6) is arranged at the bottom of the telescopic tube (5); The sampling device (6) is composed of a box (601), a rotating shaft (602), a door (603), a connecting rod (604), a fixed shaft (605), a slider (606), a spring (607), a filter (608), a shaft (609), a spiral blade (610), and a scraper (611). The box (601) is fixedly installed at the bottom of the telescopic tube (5), the rotating shaft (602) is rotatably installed inside the box (601), the door (603) is fixedly installed on the surface of the rotating shaft (602), and one end of the connecting rod (604) is fixedly installed on the surface of the rotating shaft (602). Hinged on the side of the door body (603), the fixed shaft (605) is fixedly installed inside the box body (601), the slider (606) is slidably installed on the surface of the fixed shaft (605), the spring (607) is sleeved on the surface of the fixed shaft (605), the filter (608) is fixedly installed inside the box body (601), the shaft (609) is rotatably installed on the bottom of the filter (608), the spiral blade (610) is fixedly installed on the surface of the shaft (609), and the scraper (611) is fixedly installed on the surface of the shaft (609).

2. A groundwater sampling and well washing device according to claim 1, characterized in that: A truncated cone-shaped groove which is smaller at the top and larger at the bottom is provided inside the box body (601), and a filter screen (608) is arranged in the middle of the truncated cone-shaped groove.

3. A groundwater sampling and well washing device according to claim 1, characterized in that: The other end of the connecting rod (604) connected to the door body (603) is hinged to the sliding block (606).

4. A groundwater sampling and well washing device according to claim 1, characterized in that: One end of the spring (607) is connected to the box body (601), and the other end of the spring (607) is connected to the slider (606).

5. A groundwater sampling and well washing device according to claim 1, characterized in that: The scraper (611) and the filter screen (608) are in close contact.

6. A groundwater sampling and well washing device according to claim 1, characterized in that: A load-bearing block is fixedly mounted on the bottom of the box body (601).

7. A groundwater sampling and well washing device according to claim 1, characterized in that: The water pump (1), the sampling bottle (2), the sampling tube (3), the telescopic tube (5), and the sampling device (6) are connected in sequence.

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