Groundwater sampling device for gas station

Abstract

The utility model belongs to the technical field of underground water sampling devices, and particularly relates to a gas station underground water sampling device which comprises a well body assembly and a sampling assembly, wherein the well body assembly comprises a sampling well, a well lid arranged on the sampling well, and a sampling pump and a net bag which are arranged on the inner side of the well lid; the sampling assembly is arranged in the sampling well, and the sampling assembly comprises a fixing frame mounted in the sampling well. Through the sampling assembly, the sampling suction pipe can be guided into the sampling pipe group during sampling, then the sampling suction pipe enters the sample reserving pipe and reaches a sampling point along the supporting net plate, a water source reserved in the sample reserving pipe is sampled in cooperation with the sampling pump, and when sampling is completed or it is observed that the interior of the sample reserving pipe needs to be cleaned through a camera, the sampling suction pipe can be conveniently taken out. After sampling, the water is re-introduced into the lower part of the sample reserving pipe and is discharged by using the large caliber, so that the next sampling environment is convenient to reset, the surface water source can be sampled in time, and the pollution problem can be found in time after occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling devices, in particular to a groundwater sampling device for a gas station. Background Art

[0002] With the rapid development of economy, people's living standards are improving day by day, the number of motor vehicles is increasing sharply, and correspondingly, the number of motor vehicle gas stations is also increasing substantially. While these gas stations bring great convenience to people's work and life, they also bring a certain degree of pollution to the groundwater and soil in the stations.

[0003] Many gas stations not only provide refueling services, but also operate vehicle washing services. Various types of oils that are often contaminated on the ground of gas stations are washed by water and seep into the ground, causing potential pollution to the groundwater and soil around the gas stations. In addition, most gas stations use underground "direct buried" oil storage tanks. Due to poor management, some gas stations cause oil overflow when refueling in underground oil tanks, causing gasoline and diesel to directly seep into the ground and cause pollution. Therefore, it is necessary to monitor the groundwater and soil pollution in gas stations.

[0004] Existing groundwater sampling devices at gas stations generally take samples of deep groundwater in a unified manner. However, it takes a long time for the water around the oil tank and the roadside cleaning water to penetrate into the deep layer. If a problem occurs and the short-term pollution is large, the unified detection of deep groundwater is not comprehensive and cannot stop the pollution in time. Therefore, we propose a groundwater sampling device for gas stations, which can take samples of the water around the oil tank, under the cleaning ground and deep groundwater respectively, so as to find problems in time. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A gas station groundwater sampling device, comprising: a well assembly and a sampling assembly; wherein the well assembly comprises a sampling well, a well cover arranged on the sampling well, and a sampling pump and a net bag arranged inside the well cover; the sampling assembly is arranged in the sampling well, and the sampling assembly comprises a fixing frame installed in the sampling well, a sampling tube group fixed on the fixing frame, and a sampling mechanism connected to the sampling tube group for retaining samples; the sampling tube group comprises a ground sampling tube, an oil tank sampling tube and a deep sampling tube, and the sampling mechanism is respectively The bend is connected to the ground sampling tube and the oil tank sampling tube; the sample retention mechanism includes a sample retention tube located at the outermost layer, a seepage hole opened on the upper part of the sample retention tube, a soil-proof net arranged on the inner side of the sample retention tube, an inner support mesh plate installed on the inner side of the soil-proof mesh, a support mesh plate installed on the inner support mesh plate and located in the middle of the sample retention tube, a sampling straw placed on the support mesh plate, a guide ball connected to the end of the sampling straw, a sampling cylinder arranged on the sampling straw and located on the guide ball side, and a sampling hole opened on the sampling cylinder.

[0008] In a preferred example, the utility model can be further configured as follows: a fixing bolt for fixing the soil-proof net and the inner supporting net plate is inserted in the middle of the sample retaining tube.

[0009] In a preferred example, the utility model can be further configured as follows: an inclined water collecting plate is installed in the middle of the outer side of the sample retaining tube.

[0010] In a preferred example, the utility model can be further configured as follows: a camera is embedded at the front end of the guide ball.

[0011] In a preferred example, the utility model can be further configured as follows: a drainage hole is provided on the guide ball.

[0012] In a preferred example, the utility model can be further configured as follows: the supporting mesh plate is a V-shaped mesh plate structure.

[0013] The above technical solution of the utility model has the following beneficial technical effects:

[0014] The utility model uses a sampling component to guide the sampling straw into the sampling tube group during sampling, and then enter the sample tube and reach the sampling point along the supporting mesh plate, and cooperate with the sampling pump to sample the water source retained in the sample tube. When the sampling is completed or the camera observes that the sample tube needs to be cleaned, it is reintroduced into the lower part of the sample tube, and the large diameter is used for sewage discharge, which is convenient for resetting the next sampling environment. This solution can sample surface water sources in time and discover pollution problems in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a cross-sectional view of the groundwater sampling device for a gas station of the utility model;

[0016] Figure 2 This is a schematic diagram of the sample retention mechanism structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the sample retaining mechanism of the utility model.

[0018] Reference numerals:

[0019] 100, well assembly; 110, sampling well; 120, well cover; 130, sampling pump; 140, net bag;

[0020] 200, sampling assembly; 210, sampling tube group; 211, ground sampling tube; 212, oil tank sampling tube; 213, deep sampling tube; 220, fixing frame;

[0021] 300, sample retention mechanism; 310, sample retention tube; 311, fixing bolt; 312, water collecting plate; 320, water seepage hole; 330, soil-proof net; 340, inner supporting mesh plate; 350, supporting mesh plate; 360, sampling straw; 370, guide ball; 371, camera; 372, drainage hole; 380, sampling tube; 390, sampling hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] A gas station groundwater sampling device provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.

[0024] Combination Figure 1-3 As shown, the utility model provides a gas station groundwater sampling device, including: a well assembly 100 and a sampling assembly 200; wherein the well assembly 100 includes a sampling well 110, a well cover 120 arranged on the sampling well 110, and a sampling pump 130 and a net bag 140 arranged on the inner side of the well cover 120, and the net bag 140 is used to place the sampling tool.

[0025] Among them, the sampling component 200 is arranged in the sampling well 110, and the sampling component 200 includes a fixing frame 220 installed in the sampling well 110, a sampling tube group 210 fixed on the fixing frame 220, and a sample retaining mechanism 300 connected to the sampling tube group 210 for retaining samples; the sampling tube group 210 includes a ground sampling tube 211, an oil tank sampling tube 212 and a deep sampling tube 213, and the sample retaining mechanism 300 is respectively connected to the ground sampling tube 211 and the oil tank sampling tube 212 at the bend. The sample retaining mechanism 300 is arranged at the corner to facilitate the subsequent accurate placement of the sampling pipette 360 ​​on the upper side or the lower side of the supporting mesh plate 350, which has high practicality. The deep sampling tube 213 is used to detect deep groundwater pollution relatively slowly, and the surface bottom can be frequently detected, and the deep layer can be detected after a period of time.

[0026] Furthermore, the sample retention mechanism 300 includes a sample retention tube 310 located at the outermost layer, a seepage hole 320 opened on the upper part of the sample retention tube 310, a soil-proof net 330 arranged on the inner side of the sample retention tube 310, an inner support mesh plate 340 installed on the inner side of the soil-proof net 330, a support mesh plate 350 installed on the inner support mesh plate 340 and located in the middle of the sample retention tube 310, a sampling pipette 360 ​​placed on the support mesh plate 350, a guide ball 370 connected to the end of the sampling pipette 360, a sampling cylinder 380 arranged on the sampling pipette 360 ​​and located on the side of the guide ball 370, and a sampling cylinder 380 opened on the sampling pipette 360. The sampling hole 390 on the cylinder 380 can be used to guide the sampling pipette 360 ​​into the sampling tube group 210 through the sampling assembly 200 during sampling, and then enter the sample tube 310 and reach the sampling point along the supporting mesh plate 350, and cooperate with the sampling pump 130 to sample the water source retained in the sample tube 310. When the sampling is completed or the camera 371 is used to observe that the sample tube 310 needs to be cleaned, the sampling pipette 360 ​​is reintroduced into the lower part of the sample tube 310, and the large diameter of the drainage hole 372 is used to discharge sewage, so as to reset the next sampling environment. This solution can sample surface water sources in time and discover pollution problems in time.

[0027] Specifically, a fixing bolt 311 for fixing the soil-proof net 330 and the inner supporting net plate 340 is inserted in the middle of the sample retaining tube 310. The fixing bolt 311 facilitates the installation of the sample retaining tube 310, which is more convenient.

[0028] Furthermore, an inclined water collecting plate 312 is installed in the middle of the outer side of the sample retaining tube 310 , which can collect water sources in the side range into the sample retaining tube 310 to accelerate sample retention. At the same time, the water collecting plate 312 can stabilize the sample retaining tube 310 .

[0029] On the other hand, a camera 371 is embedded in the front end of the guide ball 370, through which the situation in the sample tube 310 can be viewed, so as to facilitate sampling and cleaning.

[0030] It should be noted that a drainage hole 372 is provided on the guide ball 370. The drainage hole 372 has a large diameter and can discharge the settled water source when cleaning the sewage, and retain the sample again after cleaning.

[0031] Furthermore, the support mesh plate 350 is a V-shaped mesh plate structure, which is convenient for the sampling pipette 360 ​​to move on the support mesh plate 350, and the bottom of the support mesh plate 350 is slightly lower than the middle of the sample tube 310, which is just enough to sample the upper water source. Of course, all water sources can also be re-tested after subsequent sewage discharge, which is highly practical.

[0032] The working principle and use process of the utility model are as follows: first, when sampling, the sampling pipette 360 ​​is introduced into the sampling tube group 210, and then enters the sample tube 310 and reaches the sampling point along the supporting mesh plate 350, and cooperates with the sampling pump 130 to sample the water source retained in the sample tube 310. When the sampling is completed or the camera 371 is used to observe that the sample tube 310 needs to be cleaned, the sampling pipette 360 ​​is reintroduced into the lower part of the sample tube 310, and the large diameter of the drainage hole 372 is used to discharge sewage.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas station groundwater sampling device, characterized in that: include: A well assembly (100) comprises a sampling well (110), a well cover (120) arranged on the sampling well (110), and a sampling pump (130) and a net bag (140) arranged inside the well cover (120); A sampling assembly (200) is arranged in the sampling well (110), and the sampling assembly (200) comprises a fixing frame (220) installed in the sampling well (110), a sampling tube group (210) fixed on the fixing frame (220), and a sample retaining mechanism (300) connected to the sampling tube group (210) for retaining samples; The sampling tube group (210) comprises a surface sampling tube (211), an oil tank sampling tube (212) and a deep layer sampling tube (213), and the sample retaining mechanism (300) is connected to the surface sampling tube (211) and the oil tank sampling tube (212) at a bend, respectively; The sample retaining mechanism (300) comprises a sample retaining tube (310) located at the outermost layer, a water seepage hole (320) opened on the upper part of the sample retaining tube (310), a soil-proof net (330) arranged on the inner side of the sample retaining tube (310), an inner support net plate (340) installed on the inner side of the soil-proof net (330), a support net plate (350) installed on the inner support net plate (340) and located in the middle of the sample retaining tube (310), a sampling pipette (360) placed on the support net plate (350), a guide ball (370) connected to the end of the sampling pipette (360), a sampling cylinder (380) arranged on the sampling pipette (360) and located on the side of the guide ball (370), and a sampling hole (390) opened on the sampling cylinder (380).

2. The gas station groundwater sampling device according to claim 1, characterized in that: A fixing bolt (311) for fixing the soil-proof net (330) and the inner supporting net plate (340) is inserted in the middle of the sample retaining tube (310).

3. The gas station groundwater sampling device according to claim 1, characterized in that: An inclined water collecting plate (312) is installed in the middle of the outer side of the sample retaining tube (310).

4. The gas station groundwater sampling device according to claim 1, characterized in that: A camera (371) is embedded at the front end of the guide ball (370).

5. The gas station groundwater sampling device according to claim 1, characterized in that: The guide ball (370) is provided with a drainage hole (372).

6. The gas station groundwater sampling device according to claim 1, characterized in that: The supporting mesh plate (350) is a V-shaped mesh plate structure.

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