Locating underground water collecting device for frozen soil freezing and thawing area

Abstract

The utility model relates to the technical field of underground water sampling, and discloses a frozen soil freezing and thawing area positioning underground water collecting device which comprises an underground water collecting device body, and an auxiliary collecting mechanism is arranged at the bottom of the underground water collecting device body. By arranging an auxiliary collecting mechanism composed of an elastic collecting ring, a movable support, a cross-shaped rail, an adjusting plate and a sampling box, after the device enters a target water collecting layer of a frozen soil freezing and thawing area, the elastic collecting ring can be automatically unfolded to be attached and fixed to the surrounding stratum, the stability of the underground water collecting device body in the sampling process is improved, and the sampling efficiency is improved. The mechanism can adapt to a complex and irregular geological environment in a frozen soil freezing and thawing area, and can effectively prevent the underground water collecting device body from shaking or shifting even if the mechanism encounters soft stratum or underground water flow disturbance, so that the accurate and stable sampling position is ensured, and the sampling failure rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground water sampling technical field especially relates to a frozen soil freeze thaw zone positioning underground water collection device. BACKGROUND

[0002] In the field of environmental monitoring, geological exploration and water resources investigation, the collection of groundwater samples is an important link in the evaluation of groundwater quality, the study of groundwater dynamic changes and the judgment of the trend of underground pollution diffusion. However, in the frozen soil freeze thaw zone, due to the influence of seasonal temperature changes on the surface and underground soil layer, the soil layer is in a periodic freezing and thawing state, resulting in soft and unstable strata, and complex groundwater occurrence conditions, which brings many difficulties to groundwater sampling work.

[0003] In practice, the traditional groundwater sampling device is mostly of fixed structure. When the device is placed in the complex strata of the frozen soil freeze thaw zone, it is easily affected by factors such as strata loosening, collapse or underground water flow scouring, resulting in shaking or position deviation of the sampling device, making it difficult to accurately locate the sampling position. In addition, the existing sampling device mostly adopts single sampling mode. If water samples at different time periods or different depths are needed, the sampling device needs to be repeatedly pulled up and down, which not only is cumbersome to operate, but also easily causes disturbance to the underground water layer, affecting the accuracy of the water sample. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a frozen soil freeze thaw zone positioning underground water collection device, which solves the problems of inaccurate positioning, unstable sampling, cumbersome operation and disturbance to the water layer.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a frozen soil freeze thaw zone positioning underground water collection device, comprising an underground water collection device body, an auxiliary collection mechanism is arranged at the bottom of the underground water collection device body, the auxiliary collection mechanism comprises an elastic collection ring, a moving support, a cross rail, an adjusting plate and a sampling box, the outer wall of the sampling box is fixedly connected with the elastic collection ring, the inner wall of the cross rail is slidably connected with the moving support, and the bottom end of the adjusting plate is rotatably connected to the top end of the cross rail.

[0006] A multiple sampling mechanism is arranged in the middle of the underground water collection device body, the multiple sampling mechanism comprises a transmission plate, a storage bin, a sampling pipe and a one-way valve, the bottom end of the transmission plate is fixedly connected with a plurality of sampling pipes, and the bottom end of each of the plurality of sampling pipes is provided with a one-way valve.

[0007] Preferably, the top end of the underground water collection device body is fixedly connected with a fixed pipe, and the bottom end of the fixed pipe is connected with a connecting rope.

[0008] Preferably, the bottom end of the connecting rope is connected with an adapter, and the bottom end of the adapter is fixedly connected with the top end of the storage bin.

[0009] Preferably, the bottom end of the mobile support is fixedly connected to the bottom end of the elastic collection ring, the middle part of the cross rail is fixedly connected with a motor one, the output end of the motor one is fixedly connected with the bottom end of the adjusting plate, the top end of the adjusting plate is provided with a limiting slot, the inner wall of the limiting slot is slidably connected with a limiting column, and the bottom end of the limiting column is rotatably connected to the top end of the mobile support.

[0010] Preferably, the transmission plate is rotatably connected to the inner wall of the storage bin, and the bottom end of the adapter is fixedly connected with a motor two, and the output end of the motor two is fixedly connected with the top end of the transmission plate.

[0011] Preferably, the bottom end of the mobile support is fixedly connected to the bottom end of the elastic collection ring, the top end of the sampling box is fixedly connected with a water level detector, the sampling box is fixedly connected to the top of the cross rail, the outer wall of the mobile support is fixedly connected with a trigger switch, and the trigger switch is electrically connected with the motor one.

[0012] Preferably, the top end of the sampling box is fixedly connected with a plurality of connecting plates, the bottom end of the plurality of connecting plates is fixedly connected to the bottom end of the storage bin, and the bottom end of the storage bin is fixedly connected with a sampler.

[0013] Preferably, the bottom of the sampler is provided with a transmission pump, the water inlet of the transmission pump is arranged in the inside of the sampling box, the water outlet of the transmission pump is fixedly connected with the bottom end of the sampler, and the top end of the sampler penetrates the storage bin.

[0014] Beneficial effects

[0015] The utility model provides a kind of frozen soil freeze-thaw zone positioning underground water collection device. Compared with prior art, the following beneficial effects are achieved:

[0016] 1. In the utility model, the auxiliary collection mechanism is set, the auxiliary collection mechanism composed of the elastic collection ring, the mobile support, the cross rail, the adjusting plate and the sampling box is set, after the device enters the target water sampling layer of frozen soil freeze-thaw zone, the elastic collection ring can be automatically unfolded, fixed with surrounding stratum, improve the stability of underground water collection device body in sampling process, the mechanism can adapt to complex, irregular geological environment of frozen soil freeze-thaw zone, even if soft stratum or underground water flow disturbance is encountered, underground water collection device body can be effectively avoided to shake or deviate, so as to ensure that sampling position is accurate and stable, reduce sampling failure rate, meanwhile, the elastic collection ring has certain flexibility, can play the role of buffering when contacting different terrain, avoid that underground water collection device body is unevenly stressed and leads to deformation or damage, improve the adaptability and service life of underground water collection device body.

[0017] 2. The utility model discloses a plurality of sampling mechanism, through the setting transmission board, storage warehouse, sampling tube and check valve constitute the plurality of sampling mechanism of setting, realize a layout to complete multiple sampling tube batch, multiple groundwater sample collection, avoid the cumbersome operation of traditional sampling mode to need repeatedly to pull device to obtain multiple water sample, the mechanism can ensure the continuous collection of groundwater sample of different time points or different depth, and the data obtained is more complete and accurate, and it is helpful to analyze the dynamic change of groundwater in frozen soil freeze thaw zone, in addition, check valve can prevent water sample backflow in the sampling process, and water sample is transported to the inside of sampling tube in combination transmission pump, effectively avoid water sample mixture or pollution, improve the purity and representativeness of water sample collection, satisfy the demand of high accuracy water sample of scientific research or environmental monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional structure schematic diagram of the groundwater collection device in frozen soil freeze thaw zone is provided for the utility model;

[0019] Figure 2 A front side structure entity graph of the groundwater collection device in frozen soil freeze thaw zone is provided for the utility model;

[0020] Figure 3 A three-dimensional structure schematic diagram of the groundwater collection device in frozen soil freeze thaw zone is provided for the utility model; Figure 2 The enlarged view of A in the middle;

[0021] Figure 4 A structure schematic diagram of the sampling box part of the groundwater collection device in frozen soil freeze thaw zone is provided for the utility model;

[0022] Figure 5 The structure sectional view of the storage warehouse part of the groundwater collection device in frozen soil freeze thaw zone is provided for the utility model.

[0023] Legend:

[0024] 1, groundwater collection device body;2, connecting rope;3, adapter;4, plurality of sampling mechanism;401, storage warehouse;402, motor two;403, transmission board;404, sampling tube;405, check valve;5, fixed pipe fitting;6, auxiliary collection mechanism;601, connecting plate;602, elastic collection ring;603, mobile support;604, trigger switch;605, cross rail;606, motor one;607, adjusting plate;608, water level detector;609, sampling box;610, limit post;611, limit groove;7, sampler;8, transmission pump. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical scheme, specifically including the following embodiments:

[0027] Embodiment:

[0028] A frozen soil freeze-thaw zone positioning underground water collecting device, comprising an underground water collecting device body 1, an auxiliary collecting mechanism 6 is arranged at the bottom of the underground water collecting device body 1, the auxiliary collecting mechanism 6 comprises an elastic collecting ring 602, a movable support 603, a cross rail 605, an adjusting plate 607 and a sampling box 609, the outer wall of the sampling box 609 is fixedly connected with the elastic collecting ring 602, the inner wall of the cross rail 605 is slidably connected with the movable support 603, and the bottom end of the adjusting plate 607 is rotatably connected to the top end of the cross rail 605.

[0029] A multiple sampling mechanism 4 is arranged at the middle part of the underground water collecting device body 1, the multiple sampling mechanism 4 comprises a transmission plate 403, a storage bin 401, a sampling pipe 404 and a one-way valve 405, the bottom end of the transmission plate 403 is fixedly connected with a plurality of sampling pipes 404, and the bottom end of each sampling pipe 404 is provided with a one-way valve 405.

[0030] Preferably, the top end of the underground water collecting device body 1 is fixedly connected with a fixed pipe 5, and the bottom end of the fixed pipe 5 is connected with a connecting rope 2.

[0031] Preferably, the bottom end of the connecting rope 2 is connected with an adapter 3, and the bottom end of the adapter 3 is fixedly connected with the top end of the storage bin 401.

[0032] Preferably, the bottom end of the movable support 603 is fixedly connected to the bottom end of the elastic collecting ring 602, the middle part of the cross rail 605 is fixedly connected with a motor one 606, the output end of the motor one 606 is fixedly connected with the bottom end of the adjusting plate 607, the top end of the adjusting plate 607 is provided with a limiting groove 611, the inner wall of the limiting groove 611 is slidably connected with a limiting column 610, and the bottom end of the limiting column 610 is rotatably connected to the top end of the movable support 603.

[0033] Preferably, the transmission plate 403 is rotatably connected to the inner wall of the storage bin 401, the bottom end of the adapter 3 is fixedly connected with a motor two 402, and the output end of the motor two 402 is fixedly connected with the top end of the transmission plate 403.

[0034] Preferably, the bottom end of the mobile support 603 is fixedly connected to the bottom end of the elastic collection ring 602, the top end of the sampling box 609 is fixedly connected with the water level detector 608, the sampling box 609 is fixedly connected to the top of the cross rail 605, the outer wall of the mobile support 603 is fixedly connected with the trigger switch 604, and the trigger switch 604 is electrically connected with the motor 1 606.

[0035] Preferably, the top end of the sampling box 609 is fixedly connected with a plurality of connecting plates 601, the bottom end of each of the plurality of connecting plates 601 is fixedly connected to the bottom end of the storage bin 401, and the bottom end of the storage bin 401 is fixedly connected with the sampler 7.

[0036] Preferably, the bottom of the sampler 7 is provided with a transmission pump 8, the water inlet of the transmission pump 8 is arranged in the interior of the sampling box 609, the water outlet of the transmission pump 8 is fixedly connected with the bottom end of the sampler 7, and the top end of the sampler 7 penetrates the storage bin 401.

[0037] In operation, the underground water collecting device body 1 is kept stable by the connecting rope 2 and the fixing pipe 5 during the process of being lowered to the target sampling position in the frozen soil freeze-thaw area. When the bottom of the underground water collecting device body 1 approaches the underground water layer position, the auxiliary collecting mechanism 6 where the sampling box 609 is located starts to work first to ensure the stability of the underground water collecting device body 1, avoiding the shaking or deviation of the underground water collecting device body 1 due to the loose geology or water flow disturbance in the frozen soil freeze-thaw area. When the sampling box 609 enters the target water layer, the water level detector 608 installed on the sampling box 609 senses the underground water and feeds back a signal to the trigger switch 604, which starts the motor one 606. The motor one 606 drives the adjusting plate 607 to rotate through the connection with the adjusting plate 607, thereby pushing the moving support 603 on the cross rail 605 to make a horizontal sliding movement, and the moving support 603 drives the elastic collecting ring 602 to open, so that the collecting ring expands outward to contact and tighten the surrounding soil layer, enhancing the stability of the underground water collecting device body 1 during sampling. If the device moves slightly due to water impact or soft stratum during sampling, the elastic collecting ring 602 can buffer and adapt to the terrain changes, avoiding the inclination or disengagement of the sampling box 609 from the target water layer position. The entire auxiliary collecting mechanism 6 ensures that the sampling box can stably and accurately collect underground water samples in the complex environment of the frozen soil freeze-thaw area. After the auxiliary collecting mechanism 6 completes stable positioning, the multiple sampling mechanism 4 starts to perform batch and multiple sampling of underground water samples. The multiple sampling mechanism 4 is composed of a storage bin 401, a transmission plate 403, multiple sampling tubes 404, and one-way valves 405. When sampling starts, the motor two 402 installed on the adapter 3 is started to drive the transmission plate 403 to rotate in the storage bin 401. The bottom end of the transmission plate 403 is connected to multiple sampling tubes 404. Under the drive of the motor two 402, the sampling tubes 404 enter the sampling state in a predetermined order. When the bottom end of a certain sampling tube 404 extends into the target water layer, the one-way valve 405 at the end automatically opens under the action of water pressure, and underground water enters the sampling tube 404. When the sampling tube 404 is filled with underground water, the one-way valve 405 automatically closes when it is lifted out of the water surface, preventing backflow and contamination of the water sample. After completing the sampling of a single sampling tube 404, the transmission plate 403 continues to rotate to drive the next sampling tube 404 into the sampling position, and the above sampling process is repeated until multiple sampling is completed. After sampling is completed, the underground water samples in the sampling tubes 404 are transported by the transmission pump 8. The transmission pump 8 is located at the bottom of the sampler 7, with its water inlet placed inside the sampling box 609 and its water outlet connected to the bottom end of the sampler 7. When the transmission pump 8 is started, it pumps the underground water samples in the sampling tubes 404 into the interior of the sampling tubes 404, realizing the centralized storage of water samples. Through the multiple sampling mechanism 4, multiple depths and different time periods of underground water sampling can be realized in one deployment process, continuous water quality data can be obtained, and subsequent water quality analysis is facilitated.The multiple sampling reduces the number of pulling of the groundwater collecting device body 1, improves the sampling efficiency, and reduces the operation difficulty and environmental influence.

[0038] The above only describes the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the present application.

Claims

1. A groundwater sampling device for locating groundwater in frozen soil freeze-thaw zones, comprising a groundwater sampling device body (1), characterized in that: The bottom of the groundwater collection device body (1) is provided with an auxiliary collection mechanism (6). The auxiliary collection mechanism (6) includes an elastic collection ring (602), a movable support (603), a cross rail (605), an adjustment plate (607), and a sampling box (609). The outer wall of the sampling box (609) is fixedly connected to the elastic collection ring (602). The inner wall of the cross rail (605) is slidably connected to the movable support (603). The bottom end of the adjustment plate (607) is rotatably connected to the top end of the cross rail (605). The groundwater collection device body (1) is provided with a multiple sampling mechanism (4) in the middle. The multiple sampling mechanism (4) includes a transmission plate (403), a storage chamber (401), a sampling tube (404) and a one-way valve (405). Multiple sampling tubes (404) are fixedly connected to the bottom end of the transmission plate (403), and a one-way valve (405) is installed at the bottom end of each of the multiple sampling tubes (404).

2. The groundwater sampling device for frozen soil freeze-thaw zones according to claim 1, characterized in that: The top of the groundwater collection device body (1) is fixedly connected to a fixing pipe (5), and the bottom of the fixing pipe (5) is connected to a connecting rope (2).

3. The groundwater sampling device for frozen soil freeze-thaw zones according to claim 2, characterized in that: The bottom end of the connecting rope (2) is connected to an adapter (3), and the bottom end of the adapter (3) is fixedly connected to the top end of the storage compartment (401).

4. The groundwater sampling device for frozen soil freeze-thaw zones according to claim 3, characterized in that: The bottom end of the movable support (603) is fixedly connected to the bottom end of the elastic collection ring (602). The middle part of the cross rail (605) is fixedly connected to the motor (606). The output end of the motor (606) is fixedly connected to the bottom end of the adjustment plate (607). The top end of the adjustment plate (607) is provided with a limiting groove (611). The inner wall of the limiting groove (611) is slidably connected to a limiting post (610). The bottom end of the limiting post (610) is rotatably connected to the top end of the movable support (603).

5. A groundwater sampling device for frozen soil freeze-thaw zones according to claim 3, characterized in that: The transmission plate (403) is rotatably connected to the inner wall of the storage compartment (401), and the bottom end of the adapter (3) is fixedly connected to the second motor (402), and the output end of the second motor (402) is fixedly connected to the top end of the transmission plate (403).

6. The groundwater sampling device for frozen soil freeze-thaw zones according to claim 1, characterized in that: The bottom end of the movable support (603) is fixedly connected to the bottom end of the elastic collection ring (602). The top end of the sampling box (609) is fixedly connected to a water level detector (608). The sampling box (609) is fixedly connected to the top of the cross rail (605). The outer wall of the movable support (603) is fixedly connected to a trigger switch (604). The trigger switch (604) is electrically connected to the motor (606).

7. The groundwater sampling device for frozen soil freeze-thaw zones according to claim 1, characterized in that: The top of the sampling box (609) is fixedly connected to a plurality of connecting plates (601), and the bottom ends of the plurality of connecting plates (601) are fixedly connected to the bottom end of the storage compartment (401). The bottom end of the storage compartment (401) is fixedly connected to a sampler (7).

8. A groundwater sampling device for frozen soil freeze-thaw zones according to claim 7, characterized in that: The sampler (7) is provided with a transfer pump (8) at the bottom. The inlet of the transfer pump (8) is placed inside the sampling box (609). The outlet of the transfer pump (8) is fixedly connected to the bottom of the sampler (7). The top of the sampler (7) passes through the storage compartment (401).

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