Underground water survey well casing filter screen sleeve

Abstract

The utility model discloses an underground water survey well casing filter screen sleeve, which relates to the technical field of underground water survey and comprises a fixing plate, the top end of the fixing plate is connected with a sampling rope through a hanging ring and a sampling hanging hook, and the bottom end of the fixing plate is provided with a sampling assembly. The sampling assembly is provided with a filter screen cylinder I, a filter screen cylinder II, a filter screen cylinder III and a plurality of collecting bottles, the filter screen cylinder I is fixedly mounted at the bottom end of the fixing plate, and combined bolt grooves are formed in the top ends of the collecting bottles; through the sampling assembly, underground water of different depths can be conveniently collected, the sampling efficiency is improved, the number of collected samples is conveniently adjusted, the use flexibility is high, and the problems that in a traditional underground water exploration well pipe filter screen sleeve, the filtering size of a sleeve is difficult to adjust according to the sampling amount, and the use flexibility is poor are solved. And when underground water samples with different heights are collected, the filter screen sleeve needs to be put back and forth to different depths.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater exploration, in particular to a groundwater exploration well pipe filter sleeve. Background Art

[0002] Groundwater exploration refers to the hydrogeological investigation and research work carried out to find out the hydrogeological conditions of a region. It aims to understand the causes, distribution and movement of groundwater and surface water, and provide a basis for the rational exploitation and utilization of water resources and construction. When exploring groundwater, it is necessary to use sampling sleeves to go deep underground to collect water, so as to detect the composition of groundwater at different depths, so that personnel can analyze and discuss appropriate usage methods.

[0003] When used, the existing groundwater exploration well pipe filter sleeve is usually an integrated setting, and it is difficult to adjust the filtering size of the sleeve according to the sampling volume. The flexibility of use is poor, and a single water inlet and sampling tube are usually set. When collecting groundwater samples at different heights, the filter sleeve needs to be lowered back and forth to different depths, which is a cumbersome operation. Utility Model Content

[0004] The main purpose of the utility model is to provide a groundwater exploration well pipe filter sleeve, which can effectively solve the problems in the background technology that it is difficult to adjust the filtering size of the sleeve according to the sampling volume, the flexibility of use is poor, and when collecting groundwater samples at different heights, the filter sleeve needs to be lowered back and forth to different depths.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A groundwater exploration well pipe filter sleeve comprises a fixed plate, the top of the fixed plate is connected to a sampling hook via a lifting ring with a sampling rope, and the bottom of the fixed plate is provided with a sampling assembly;

[0007] The sampling assembly comprises filter screen cartridge 1, filter screen cartridge 2, filter screen cartridge 3 and several collecting bottles, the filter screen cartridge 1 is fixedly mounted on the bottom end of the fixing plate, the top end of the collecting bottle is provided with a combination bolt groove, the bottom end of the collecting bottle is fixedly connected with a combination bolt column which matches the combination bolt groove, several collecting bottles are combined with the combination bolt groove through the combination bolt column, and the collecting bottle at the top is mounted at the center position of the bottom end of the fixing plate through the combination bolt groove, a water inlet pipe is provided at the upper position of the outer ring of the collecting bottle, and a waterproof solenoid valve is provided at the connection between the water inlet pipe and the collecting bottle, the top ends of the filter screen cartridge 2 and the filter screen cartridge 3 are both fixedly connected with a threaded connecting block, the bottom ends of the filter screen cartridge 1 and the filter screen cartridge 2 are both provided with an internal threaded groove which matches the threaded connecting block adaptively, the filter screen cartridge 3 is mounted on the bottom end of the filter screen cartridge 2 through the threaded connecting block, and the filter screen cartridge 2 is mounted on the bottom end of the filter screen cartridge 1 through the threaded connecting block.

[0008] As a further solution of the present utility model, one end of the water inlet pipe away from the collection bottle is tapered, and the water inlet pipe is inclined and installed on the outer ring of the collection bottle.

[0009] As a further solution of the present utility model, water passing holes are provided on the outer rings of the first filter screen cylinder, the second filter screen cylinder, and the third filter screen cylinder, and the inner walls of the first filter screen cylinder, the second filter screen cylinder, and the third filter screen cylinder do not contact the outer wall of the water inlet pipe.

[0010] As a further solution of the present utility model, the third filter screen cylinder is detachably connected to the second filter screen cylinder through a threaded connection block, and the outer ring of the threaded connection block is polygonally arranged.

[0011] As a further solution of the present utility model, several of the collection bottles are detachably connected through a combined bolt column and a combined bolt groove, and the height of the collection bottle is adaptively matched with that of the first filter screen cylinder, the second filter screen cylinder, and the third filter screen cylinder.

[0012] As a further solution of the present utility model, a wire inlet hole is provided at the outer ring position of the top end of the fixing plate, and the wire inlet hole is hollow cylindrical.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] By arranging the first filter screen cylinder, the second filter screen cylinder, the collection bottle, and the third filter screen cylinder to cooperate with each other, and by combining multiple collection bottles together, and after entering the water body, opening the waterproof solenoid valves in sequence according to the depth of the groundwater, it is convenient to collect groundwater at different depths, can meet the requirement of collecting groundwater at different depths at one time, is convenient to reduce the cumbersome steps of lowering the collection bottle back and forth for sampling, and improves the sampling efficiency;

[0015] During the use process, multiple collection bottles are combined with each other through a combined bolt groove and a combined bolt column, and the second filter screen cylinder, the first filter screen cylinder, and the third filter screen cylinder are combined with each other through a threaded connection block. Thus, according to the sampling requirements, the number of collection bottles can be added, which is convenient for adjusting the number of collected samples, and the use flexibility is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a groundwater exploration well pipe filter screen sleeve of the present utility model;

[0017] Figure 2 It is an exploded view of the second filter screen cylinder and the third filter screen cylinder in the overall structure of a groundwater exploration well pipe filter screen sleeve of the present utility model;

[0018] Figure 3This is a cross-sectional view of the internal structures of the second filter cylinder and the third filter cylinder in the overall structure of a groundwater exploration well pipe filter sleeve of the present utility model.

[0019] In the figure: 1, fixed plate; 2, sampling hook; 3, sampling rope; 4, sampling assembly; 5, first filter cylinder; 6, collection bottle; 7, second filter cylinder; 8, third filter cylinder; 9, threaded connection block; 10, combined bolt column; 11, combined bolt groove; 12, waterproof solenoid valve; 13, wire inlet hole. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] As Figures 1-3 shown, a groundwater exploration well pipe filter sleeve includes a fixed plate 1. The top end of the fixed plate 1 is connected with a sampling rope 3 through a suspension ring and a sampling hook 2, and a sampling assembly 4 is arranged at the bottom end of the fixed plate 1;

[0022] The sampling assembly 4 has a first filter cylinder 5, a second filter cylinder 7, a third filter cylinder 8 and a number of collection bottles 6. The first filter cylinder 5 is fixedly installed at the bottom end of the fixed plate 1. A combined bolt groove 11 is arranged at the top end of the collection bottle 6, and a combined bolt column 10 that is mutually matched with the combined bolt groove 11 is fixedly connected to the bottom end of the collection bottle 6. A number of collection bottles 6 are combined with each other through the combined bolt column 10 and the combined bolt groove 11, and the collection bottle 6 at the uppermost position is installed at the middle position at the bottom end of the fixed plate 1 through the combined bolt groove 11. A water inlet pipe is arranged at the upper position of the outer circle of the collection bottle 6, and a waterproof solenoid valve 12 is arranged at the connection between the water inlet pipe and the collection bottle 6. Threaded connection blocks 9 are fixedly connected to the top ends of the second filter cylinder 7 and the third filter cylinder 8, and internal thread grooves that are adaptively matched with the threaded connection blocks 9 are opened at the bottom ends of the first filter cylinder 5 and the second filter cylinder 7. The third filter cylinder 8 is installed at the bottom end of the second filter cylinder 7 through the threaded connection block 9, and the second filter cylinder 7 is installed at the bottom end of the first filter cylinder 5 through the threaded connection block 9.

[0023] In this embodiment, the end of the water inlet pipe away from the collection bottle 6 is tapered, and the water inlet pipe is obliquely installed on the outer circle of the collection bottle 6. The water inlet pipe is obliquely installed and the water inlet is tapered, which is convenient for water flow to enter the interior of the collection bottle 6.

[0024] In this embodiment, water passing holes are opened on the outer circles of the first filter cylinder 5, the second filter cylinder 7 and the third filter cylinder 8, and the inner walls of the first filter cylinder 5, the second filter cylinder 7 and the third filter cylinder 8 do not contact the outer wall of the water inlet pipe. By providing the first filter cylinder 5, the second filter cylinder 7 and the third filter cylinder 8, it is convenient to filter larger particulate matters and impurities in the groundwater and prevent them from entering the collection bottle 6.

[0025] In this embodiment, the third filter screen cylinder 8 is detachably connected to the second filter screen cylinder 7 through the threaded connection block 9. The outer ring of the threaded connection block 9 is polygonally arranged. By increasing or decreasing the second filter screen cylinder 7, after the first filter screen cylinder 5, the second filter screen cylinder 7 and the third filter screen cylinder 8 are combined, they always cover the outer ring of the collection bottle 6, which is convenient for protection and prevents larger stone particles from entering.

[0026] In this embodiment, a number of collection bottles 6 are detachably connected through the combined bolt columns 10 and the combined bolt grooves 11, and the height of the collection bottle 6 is adaptively matched with that of the first filter screen cylinder 5, the second filter screen cylinder 7, and the third filter screen cylinder 8. Personnel can add or remove the collection bottle 6 according to the sampling needs, which is convenient for adjusting the one-time sampling volume as needed, and has high flexibility in use.

[0027] In this embodiment, a wire inlet hole 13 is provided at the outer ring position near the top end of the fixing plate 1, and the wire inlet hole 13 is hollow cylindrical. Through the provided wire inlet hole 13, it is convenient to connect and thread the cable.

[0028] It should be noted that the present utility model is a groundwater exploration well pipe filter screen sleeve. When in use, first, the sampling rope 3 can be fixed at the winding roller of the exploration rack according to the needs. Then, the collection bottle 6 can be aligned with the appropriate sampling location, and the winding roller can be slowly rotated to slowly lower the collection bottle 6 into the groundwater. When lowering, it is necessary to ensure that the sampling rope 3 does not rotate and entangle with the other cables to avoid interference with subsequent winding.

[0029] When the collection bottle 6 is lowered to the appropriate sampling position, the waterproof solenoid valve 12 can be opened, so that the groundwater at this depth passes through the second filter screen cylinder 7, the third filter screen cylinder 8, and the first filter screen cylinder 5 for filtration and then enters the collection bottle 6, thus completing the sampling process.

[0030] After that, it can be continued to be lowered, and when reaching the appropriate sampling position, the groundwater can be sampled according to the above steps, which is convenient for sampling multiple groundwater samples at one time.

[0031] And before use, since the collection bottle 6 is connected to each other through the combined bolt columns 10 and the combined bolt grooves 11, and the third filter screen cylinder 8 is threadedly installed under the first filter screen cylinder 5 through the second filter screen cylinder 7, during the use process, the collection bottle 6 can be added or removed according to the sampling needs to adjust the one-time sampling volume. At the same time, after the collection bottle 6 is adjusted, by increasing or decreasing the second filter screen cylinder 7, the first filter screen cylinder 5, the second filter screen cylinder 7 and the third filter screen cylinder 8 always cover the outer ring of the collection bottle 6 to prevent larger stone particles from entering the collection bottle 6, avoid blocking the collection bottle 6, and at the same time can isolate and protect the collection bottle 6, reducing the probability of collision damage to the collection bottle 6.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A groundwater exploration well filter sleeve, comprising a fixing plate (1), the top of the fixing plate (1) being connected to a sampling hook (2) via a lifting ring with a sampling rope (3), characterized in that: A sampling assembly (4) is provided at the bottom end of the fixing plate (1); The sampling assembly (4) comprises a filter screen cartridge 1 (5), a filter screen cartridge 2 (7), a filter screen cartridge 3 (8) and a plurality of collecting bottles (6); the filter screen cartridge 1 (5) is fixedly mounted on the bottom end of the fixing plate (1); a combination bolt groove (11) is arranged at the top end of the collecting bottle (6); a combination bolt column (10) matching the combination bolt groove (11) is fixedly connected to the bottom end of the collecting bottle (6); the plurality of collecting bottles (6) are combined with the combination bolt groove (11) via the combination bolt column (10); and the collection bottle (6) at the top is mounted on the bottom end of the fixing plate (1) via the combination bolt groove (11). The collecting bottle (6) is provided with a water inlet pipe at an upper position of the outer ring, and a waterproof solenoid valve (12) is provided at the connection between the water inlet pipe and the collecting bottle (6). The top ends of the filter screen cylinder (2) (7) and the filter screen cylinder (3) (8) are fixedly connected with a threaded connection block (9). The bottom ends of the filter screen cylinder (1) (5) and the filter screen cylinder (2) (7) are provided with an internal thread groove that is adaptively matched with the threaded connection block (9). The filter screen cylinder (3) (8) is installed at the bottom end of the filter screen cylinder (2) (7) through the threaded connection block (9), and the filter screen cylinder (2) (7) is installed at the bottom end of the filter screen cylinder (1) (5) through the threaded connection block (9).

2. The underground water exploration well pipe filter sleeve according to claim 1, characterized in that: The end of the water inlet pipe away from the collecting bottle (6) is arranged in a conical shape, and the water inlet pipe is installed obliquely on the outer ring of the collecting bottle (6).

3. The underground water exploration well pipe filter sleeve according to claim 2, characterized in that: The outer circles of the filter screen cylinder 1 (5), the filter screen cylinder 2 (7) and the filter screen cylinder 3 (8) are all provided with water holes, and the inner walls of the filter screen cylinder 1 (5), the filter screen cylinder 2 (7) and the filter screen cylinder 3 (8) do not contact the outer wall of the water inlet pipe.

4. The underground water exploration well pipe filter sleeve according to claim 3, characterized in that: The filter screen cartridge three (8) is detachably connected to the filter screen cartridge two (7) via a threaded connection block (9), and the outer ring of the threaded connection block (9) is in a polygonal configuration.

5. The underground water exploration well pipe filter sleeve according to claim 1, characterized in that: A plurality of the collecting bottles (6) are detachably connected via a combination bolt column (10) and a combination bolt groove (11), and the height of the collecting bottle (6) is adaptively matched with the first filter screen cylinder (5), the second filter screen cylinder (7), and the third filter screen cylinder (8).

6. The underground water exploration well pipe filter sleeve according to claim 1, characterized in that: A wire entry hole (13) is provided at the top end of the fixing plate (1) near the outer ring, and the wire entry hole (13) is in the shape of a hollow cylinder.

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