Underground water supply influence test measuring device

Abstract

The utility model relates to the technical field of underground water recharge influence tests, in particular to an underground water recharge influence test measuring device which comprises an experiment box body and a filtering structure. A filter screen is laid at the upper end of a supporting plate, then a pressing plate is pressed above the supporting plate, the filter screen is located between the pressing plate and the supporting plate, at the moment, a connecting groove is matched with a connecting block, then the supporting plate and the pressing plate are fixed through bolts, and then the pressing plate is inserted into an experiment box body through a rectangular groove. Meanwhile, inserting blocks on the two sides are pulled to drive springs to be compressed along sliding grooves, when guide holes correspond to rectangular holes, the inserting blocks are loosened, the elastic force of the springs drives the inserting blocks to be connected with the rectangular holes, fixing of the supporting plate is achieved, and sand is filtered through a filter screen in the experiment process; the situation that in the water flowing process, some sandy soil flows into an external connecting pipe along with water, the connecting pipe is blocked, and water flowing is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater recharge influence tests, and particularly relates to a measurement device for groundwater recharge influence tests. Background Art

[0002] At present, the commonly used method is to drill wells and measure the groundwater level by using the water level in the well. However, such a statistical method has a large investment, slow results, and requires a long time. Therefore, it is necessary to design a measurement device for groundwater recharge influence tests.

[0003] For example, a measurement device for groundwater recharge influence tests with the authorization announcement number CN203572543U. In the above document, groundwater is collected inside the test box, and the water level is recorded by a water level probe. It is possible to compare the groundwater recharge time and the continuous process under different vegetation coverage rates. However, during the use of the groundwater recharge influence test measurement device in the above document, when water is irrigated into the sandy soil and then converges into the inside of the water collecting bucket through the pipeline, the groundwater recharge influence test device in the above document cannot filter the sandy soil, and the sandy soil easily flows into the pipeline along with the water, causing the pipeline to be blocked, thereby affecting the water flow inside the pipeline and further affecting the accuracy of the experimental data of the groundwater recharge influence test measurement. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the prior art cannot filter sandy soil, and a measurement device for groundwater recharge influence tests is proposed.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] Design a measurement device for groundwater recharge influence tests, including an experimental box body and a filtering structure;

[0007] A cavity is arranged inside the experimental box body, a rectangular groove is arranged on one side of the cavity and the rectangular groove penetrates through the experimental box body;

[0008] One side of the cavity adjacent to the rectangular groove is fixedly connected with support rods on both sides, which are used to support the filtering structure;

[0009] The other side of the cavity adjacent to the rectangular groove is fixedly connected with a partition board, which is used to support the sandy soil;

[0010] A filtering structure is arranged in the middle of the cavity to prevent the sandy soil from flowing along with the water during the water flow process, resulting in the blockage of the collection pipeline.

[0011] Preferably, the filtering structure includes a pressing plate, a supporting plate, a filter net, a limiting component, bolts and rubber gaskets;

[0012] The inner side of the pressing plate is in contact with the pressing plate and is used to fix the filter screen;

[0013] A filter screen is arranged between the pressing plate and the support plate and is used to filter sand;

[0014] The inner end of the support plate is fixedly connected to the rubber pad, and the end of the rubber pad is in close contact with the filter screen to ensure the stability of the fixed filter screen;

[0015] A limiting component is arranged on one side of the pressing plate, and the pressing plate and the experimental box body are limited by the limiting component;

[0016] A plurality of bolts are arranged at both ends of the support plate and are used to fix the support plate and the pressing plate.

[0017] Preferably, sliding grooves are respectively arranged on both sides of one end of the pressing plate, and a guiding hole is arranged at one end of the sliding groove and the guiding hole penetrates through the pressing plate for connecting the limiting component;

[0018] Connecting grooves are respectively arranged in the middle of both sides of the pressing plate, and the two connecting grooves on both sides are mirror images of each other for connecting the support plate;

[0019] Connecting holes are respectively arranged on both sides of the end of the connecting groove, and threads are arranged inside the connecting holes and can be matched and connected with the bolts.

[0020] Preferably, connecting blocks are respectively arranged on both sides of the support plate, and the size of the connecting blocks is the same as the size of the connecting grooves, and the connecting blocks can be matched with the connecting grooves;

[0021] Positioning holes are respectively arranged on both sides of the connecting block, and threads are arranged on one side of the positioning hole, and the positioning holes can be matched and connected with the bolts.

[0022] Preferably, the limiting component includes an insertion block and a spring;

[0023] The cross-sectional dimension of one side of the insertion block is the same as the dimension of the guiding hole, and the insertion block can move along the guiding hole;

[0024] The other side of the insertion block is matched with the sliding groove, and the insertion block can slide inside the sliding groove;

[0025] Both ends of the spring are fixedly connected to the insertion block and the sliding groove respectively, and the elastic force of the spring is used to limit the movement of the insertion block.

[0026] Preferably, a hexagonal groove is arranged at the end of the bolt, which is convenient to rotate the bolt by a wrench with a corresponding size to realize the disassembly of the bolt.

[0027] Preferably, the end of the support plate is in contact with the support rods on both sides, and the support plate is supported by the support rods on both sides.

[0028] Preferably, the conical surface on the side of the cavity away from the rectangular groove facilitates the collection of the water flowing out of the sandy soil and avoids water accumulation at the bottom of the experimental box body;

[0029] A plurality of round holes are arranged in a rectangular array in the middle of the partition board, which facilitates water flow and collection;

[0030] Rectangular holes are respectively arranged at both ends of the rectangular groove, and the two rectangular holes on both sides are mirror-symmetrically arranged. The rectangular holes are matched with the ends of the insertion blocks, and the movement of the pressing plate is restricted by the cooperation of the insertion blocks and the rectangular holes.

[0031] Preferably, the end of the experimental box body is fixedly connected with a connector, and the connector is matched with the experimental box. The connector is used to connect the drainage pipeline.

[0032] An experimental device for measuring the influence of groundwater recharge proposed by the present utility model has the beneficial effects that: by laying a filter net on the upper end of the support plate, and then pressing the pressing plate above the support plate, so that the filter net is located between the pressing plate and the support plate. At this time, the connecting groove is matched with the connecting block, and then the support plate and the pressing plate are fixed by bolts. Subsequently, the pressing plate is inserted into the interior of the experimental box body through the rectangular groove. At the same time, the insertion blocks on both sides are pulled to drive the spring to compress along the sliding groove. When the guiding hole corresponds to the rectangular hole, the insertion blocks are released, and the elastic force of the spring drives the insertion blocks to be connected with the rectangular holes, realizing the fixation of the support plate, so that during the experiment, the sandy soil is filtered by the filter net, avoiding some sandy soil flowing to the external connecting pipe along with the water during the water flow, resulting in the blockage of the connecting pipe and affecting the water flow, and further causing the deviation of the experimental data of the influence of groundwater recharge and affecting the accuracy of the data. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of the present utility model;

[0034] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0035] Figure 3 is a schematic structural diagram of the filtering structure in the present utility model;

[0036] Figure 4 is Figure 3 the structural decomposition diagram of;

[0037] Figure 5 is Figure 3 the schematic cross-sectional structural diagram of.

[0038] In the figure: 1. Experimental box body; 101. Cavity; 102. Rectangular groove; 103. Partition board; 1031. Round hole; 104. Conical surface; 105. Support rod; 106. Rectangular hole; 2. Filter structure; 201. Pressing plate; 2011. Slide groove; 2012. Guide hole; 2013. Connecting groove; 2014. Connecting hole; 202. Support plate; 2021. Connecting block; 2022. Positioning hole; 203. Filter net; 204. Limit component; 2041. Insert block; 2042. Spring; 205. Bolt; 206. Rubber pad; 3. Connector. Specific implementation mode

[0039] The present utility model will be further described below in conjunction with the accompanying drawings:

[0040] A groundwater recharge influence test measurement device proposed in the present utility model, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, includes an experimental box body 1 and a filter structure 2. A cavity 101 is arranged inside the experimental box body 1. A rectangular groove 102 is arranged on one side of the cavity 101 and the rectangular groove 102 penetrates through the experimental box body 1. The side of the cavity 101 adjacent to the rectangular groove 102 is fixedly connected to support rods 105 on both sides for supporting the filter structure 2. The other side of the cavity 101 adjacent to the rectangular groove 102 is fixedly connected to a partition board 103 for supporting sandy soil. A filter structure 2 is arranged in the middle of the cavity 101 to prevent the sandy soil from flowing along with the water during the water flow process, resulting in blockage of the collection pipeline.

[0041] The filter structure 2 includes a pressing plate 201, a support plate 202, a filter net 203, a limit component 204, a bolt 205 and a rubber pad 206. The inner side of the pressing plate 201 is attached to the pressing plate 201 for fixing the filter net 203. A filter net 203 is arranged between the pressing plate 201 and the support plate 202 for filtering sandy soil. The inner end of the support plate 202 is fixedly connected to the rubber pad 206, and the end of the rubber pad 206 is closely attached to the filter net 203 to ensure the stability of the fixed filter net 203. A limit component 204 is arranged on one side of the pressing plate 201 to limit between the pressing plate 201 and the experimental box body 1. A plurality of bolts 205 are arranged at both ends of the support plate 202 for fixing the support plate 202 and the pressing plate 201. By a person using a wrench of corresponding size to rotate the bolt 205, the bolt 205 is separated from the connecting hole 2014 and the positioning hole 2022, and then the pressing plate 201 and the support plate 202 are separated to realize the disassembly and replacement of the filter net 203. The material of the filter net 203 is a non-woven fabric material for filtering sandy soil.

[0042] On both sides of one end of the pressing plate 201, sliding grooves 2011 are respectively arranged. At one end of the sliding groove 2011, a guiding hole 2012 is arranged and the guiding hole 2012 penetrates through the pressing plate 201 for connecting the limiting component 204. In the middle of both sides of the pressing plate 201, connecting grooves 2013 are respectively arranged, and the two connecting grooves 2013 on both sides are mirror images of each other for connecting the supporting plate 202. At both sides of the end of the connecting groove 2013, connecting holes 2014 are respectively arranged, and threads are arranged inside the connecting holes 2014, which can be matched and connected with the bolts 205. On both sides of the supporting plate 202, connecting blocks 2021 are respectively arranged. The size of the connecting block 2021 is the same as that of the connecting groove 2013, and the connecting block 2021 can be matched with the connecting groove 2013. On both sides of the connecting block 2021, positioning holes 2022 are respectively arranged. One side of the positioning hole 2022 is provided with threads, and the positioning hole 2022 can be matched and connected with the bolts 205. The side of the pressing plate 201 adjacent to the limiting component 204 is in fit with the rectangular groove 102 to ensure the sealing between the pressing plate 201 and the rectangular groove 102.

[0043] The limiting component 204 includes an insertion block 2041 and a spring 2042. The cross-sectional dimension of one side of the insertion block 2041 is the same as that of the guiding hole 2012, and the insertion block 2041 can move along the guiding hole 2012. The other side of the insertion block 2041 is matched with the sliding groove 2011, and the insertion block 2041 can slide inside the sliding groove 2011. Both ends of the spring 2042 are fixedly connected with the insertion block 2041 and the sliding groove 2011 respectively. The elastic force of the spring 2042 is used to limit the movement of the insertion block 2041. The end of the bolt 205 is provided with a hexagonal groove, which is convenient to rotate the bolt 205 by a wrench with a corresponding size to realize the disassembly of the bolt 205. The end of the supporting plate 202 is in fit with the two supporting rods 105 on both sides, and the supporting plate 202 is supported by the two supporting rods 105 on both sides. By simultaneously moving the two insertion blocks 2041 on both sides to move inwards along the sliding groove 2011, the insertion block 2041 drives the spring 2042 to be compressed, and the insertion block 2041 is separated from the rectangular hole 106, so as to release the restriction on the pressing plate 201.

[0044] The conical surface 104 on the side of the cavity 101 far from the rectangular groove 102 is convenient for collecting the water flowing out of the sandy soil and avoiding water accumulation at the bottom of the experimental box body 1. A plurality of round holes 1031 are arranged in a rectangular array in the middle of the partition plate 103, which is convenient for water flow and collection. At both ends of the rectangular groove 102, rectangular holes 106 are respectively arranged, and the two rectangular holes 106 on both sides are mirror images of each other. The rectangular hole 106 is matched with the end of the insertion block 2041, and the movement of the pressing plate 201 is restricted by the cooperation of the insertion block 2041 and the rectangular hole 106. The end of the experimental box body 1 is fixedly connected with the connecting head 3, and the connecting head 3 is matched with the experimental box. The connecting head 3 is used for connecting the drainage pipeline.

[0045] Specifically, the personnel lay the filter screen on the upper end of the support plate, and then press the pressure plate above the support plate so that the filter screen is located between the pressure plate and the support plate. At this time, the connection groove and the connection block are matched, and then the support plate and the pressure plate are fixed by bolts. Subsequently, the pressure plate is inserted into the interior of the experimental box through the rectangular groove. At the same time, the plug blocks on both sides are pulled to drive the spring to compress along the sliding groove. When the guide hole corresponds to the rectangular hole, the plug blocks are released, and the elastic force of the spring drives the plug blocks to be connected with the rectangular hole, realizing the fixation of the support plate, so as to avoid some sand flowing into the external connecting pipe along with the water flow during the water flow process in the laboratory, resulting in the blockage of the connecting pipe and affecting the water flow, and further causing the deviation of the experimental data of groundwater recharge and affecting the accuracy of the data.

[0046] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details may be made within the scope of the claims.

Claims

1. An experimental measurement device for influencing groundwater recharge, characterized in that: It includes an experimental box body and a filtering structure; A cavity is arranged inside the experimental box body, and a rectangular groove is arranged on one side of the cavity and penetrates through the experimental box body; One side of the cavity close to the rectangular groove is fixedly connected to the support rods on both sides for supporting the filtering structure; The other side of the cavity close to the rectangular groove is fixedly connected to a partition board for supporting the sandy soil; A filtering structure is arranged in the middle of the cavity to prevent the sandy soil from flowing along with the water during the water flow process, resulting in blockage of the collection pipeline.

2. The groundwater recharge impact test measurement device according to claim 1, wherein: The filtering structure includes a pressing plate, a support plate, a filter net, a limiting component, bolts and rubber pads; The inner side of the pressing plate is attached to the pressing plate for fixing the filter net; A filter net is arranged between the pressing plate and the support plate for filtering the sandy soil; The inner end of the support plate is fixedly connected to the rubber pad, and the end of the rubber pad is closely attached to the filter net to ensure the stability of the fixed filter net; A limiting component is arranged on one side of the pressing plate to limit the position between the pressing plate and the experimental box body through the limiting component; A plurality of bolts are arranged at both ends of the support plate for fixing the support plate and the pressing plate.

3. The groundwater recharge impact test measurement device according to claim 2, wherein: Chutes are respectively arranged on both sides of one end of the pressing plate, and a guiding hole is arranged at one end of the chute and penetrates through the pressing plate for connecting the limiting component; Connection grooves are respectively arranged in the middle of both sides of the pressing plate, and the two connection grooves on both sides are mirror images of each other for connecting the support plate; Connection holes are respectively arranged on both sides of the end of the connection groove, and threads are arranged inside the connection holes, which can be matched and connected with the bolts.

4. The groundwater recharge impact test measurement device according to claim 2, characterized in that: Connection blocks are respectively arranged on both sides of the support plate, and the size of the connection blocks is the same as that of the connection grooves, and the connection blocks can be matched with the connection grooves; Positioning holes are respectively arranged on both sides of the connection block, and threads are arranged on one side of the positioning hole, and the positioning holes can be matched and connected with the bolts.

5. The groundwater recharge impact test measurement device according to claim 2, wherein: The limiting component includes a plug and a spring; The cross-sectional dimension of one side of the plug is the same as that of the guiding hole, and the plug can move along the guiding hole; The other side of the plug is matched with the chute, and the plug can slide inside the chute; Both ends of the spring are respectively fixedly connected to the plug and the chute, and the elastic force of the spring is used to limit the movement of the plug.

6. The groundwater recharge impact test measurement device according to claim 2, characterized in that: A hexagonal groove is arranged at the end of the bolt, which is convenient for turning the bolt with a wrench of corresponding size to realize the disassembly of the bolt.

7. The groundwater recharge impact test measurement device according to claim 2, characterized in that: The end of the support plate is attached to the support rods on both sides, and the support plate is supported by the support rods on both sides.

8. The groundwater recharge impact test measurement device according to claim 1, characterized in that: The conical surface on the side of the cavity far from the rectangular groove is convenient for collecting the water flowing out of the sandy soil and avoiding water accumulation at the bottom of the experimental box body; A plurality of round holes are arranged in a rectangular array in the middle of the partition board, which is convenient for water flow and collection; Rectangular holes are respectively arranged at both ends of the rectangular groove, and the two rectangular holes on both sides are mirror images of each other, and the rectangular holes are matched with the ends of the plugs, and the movement of the pressing plate is restricted by the cooperation of the plugs and the rectangular holes.

9. The groundwater recharge impact test measurement device according to claim 1, characterized in that: The end of the experimental box body is fixedly connected to a connector, and the connector is matched with the experimental box, and the connector is used for connecting the drainage pipeline.

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