Construction device for connecting underground reservoir artificial dam body and coal pillar dam body

Abstract

The present application relates to the technical field of underground reservoir dam body, specifically is a kind of underground reservoir artificial dam body and coal pillar dam body's connecting construction device, the present application includes dam body main body, the both sides of dam body main body are all fixedly connected with the side plate that is abutted with coal pillar dam body, the both sides of side plate are all movably clamped with waterproof cloth for wrapping coal pillar dam body, the top side of dam body main body is fixedly connected with connecting horizontal plate.The present application is set through waterproof cloth, on the one hand can effectively reduce the water seepage amount received in coal column, to make coal pillar dam body can keep dry within a certain extent, on the other hand when a small amount of water seepage occurs in coal pillar dam body, through the setting of water-permeable cloth, water in coal pillar dam body will be attracted by water-permeable cloth, then guided to water-absorbing expansion interlayer, water-absorbing expansion interlayer expands after absorbing water.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of underground reservoir dam body, in particular to a connecting construction device for underground reservoir artificial dam body and coal pillar dam body. BACKGROUND

[0002] The coal pillar is the part left unsampled on the mining face during coal mining for safety reasons, and the coal pillar dam body is a dam formed by the residual coal pillar after coal mining, which is usually cylindrical.

[0003] In the patent with publication number CN113338228A, an artificial dam body applied to an underground reservoir of a coal mine is disclosed, which includes a pressure relief wall, a support beam, a waterproof wall, a side slope dam, and a monitoring system. The waterproof wall is connected to the side slope dam, the waterproof wall is connected to the pressure relief wall, and the pressure relief wall is connected to the support beam.

[0004] However, the artificial dam body disclosed in the patent with publication number CN113338228A still has some drawbacks. In the prior art, the artificial dam body often needs to be connected to the coal pillar dam body. After being soaked in water for a long time, the coal pillar dam body will crumble, causing the connection between the artificial dam body and the coal pillar dam body to separate, which poses a certain safety hazard. In addition, after coal mining, the mine often contains harmful substances, so it is necessary to preliminarily filter and purify the impurities or harmful substances in the mine. SUMMARY

[0005] The present application relates to the field of underground reservoir dam body, in particular to a connecting construction device for underground reservoir artificial dam body and coal pillar dam body.

[0006] The present application relates to the field of underground reservoir dam body, in particular to a connecting construction device for underground reservoir artificial dam body and coal pillar dam body.

[0007] A connecting construction device for an underground reservoir artificial dam body and a coal pillar dam body, comprising a dam body main body, both sides of the dam body main body are fixedly connected with side plates abutting against the coal pillar dam body, waterproof cloth for wrapping the coal pillar dam body is movably clamped on both sides of the side plates, a connecting horizontal plate is fixedly connected to one side of the top of the dam body main body, a plurality of support columns for reinforcement are arranged on the bottom of the connecting horizontal plate, water level gauges for detecting the water level are arranged on the two support columns at both ends of the connecting horizontal plate, adsorption nets for adsorbing impurities and dust are slidably installed on the sides opposite to each other of the adjacent two support columns, mounting blocks for reinforcement are arranged on the bottom of the support columns, and two drainage openings for drainage are arranged on the dam body main body.

[0008] Preferably, the inside center of the support column is embedded with a support rod, one end of the support rod away from the connecting horizontal plate is fixedly connected with the mounting block, a circular groove is arranged at the bottom center of the support rod, two first through holes are communicated on both sides of the middle section of the circular groove, the circular groove penetrates the bottom of the support rod, a rectangular groove is arranged in the inside of the mounting block, the top center of the rectangular groove is communicated with the circular groove, a water-absorbing expansion resin is embedded at the center of the rectangular groove, and two second sliding plates are abutted on both sides of the water-absorbing expansion resin.

[0009] Preferably, the two second sliding plates are fixedly connected with plug-in plates at the center of the sides away from each other, the two plug-in plates are provided with inclined downward inclined grooves at the ends away from each other, the bottom of the mounting block is provided with a sharp end for inserting into the soil at the bottom of the underground reservoir, a ring body is slidably connected in the circular groove, a filter screen is fixedly sleeved on the top of the inner ring of the ring body, and the bottom wall plate of the ring body is abutted with the water-absorbing expansion resin. The ring body is used to block the first through hole.

[0010] Preferably, the bottom of the water level gauge is fixedly connected with a foam plate, the two sides of the foam plate are fixedly connected with rectangular sliding blocks at the center, the rectangular sliding blocks are slidably connected with guide grooves, the two ends of the dam body are provided with guide grooves, the two support columns located at the two ends of the connecting horizontal plate are also provided with guide grooves on the side close to the dam body, the two foam plates are slidably installed between the support columns and the dam body through the four guide grooves, the two ends of the connecting horizontal plate are provided with rectangular sliding holes in the vertical direction at the center, the water level gauge is slidably connected in the rectangular sliding hole, the bottom center of the foam plate is fixedly connected with a gauze screen, the bottom of the gauze screen is fixedly connected with the bottom of the underground reservoir, and the length of the gauze screen is higher than the height of the dam body.

[0011] Preferably, the two support columns are provided with limiting grooves on the sides opposite to each other, and a settlement sliding rod is slidably connected in the limiting groove. The top of the settlement sliding rod is fixedly connected with an adsorption net, one end of the adsorption net away from the settlement sliding rod penetrates through the top wall plate of the connecting horizontal plate, a plurality of storage boxes are fixedly connected on the connecting horizontal plate, a winding roller is rotatably connected in the storage box, and one end of the adsorption net away from the settlement sliding rod is fixedly connected with the winding roller.

[0012] Preferably, the dam body is fixedly connected with three reinforcing ribs with triangular cross sections on the side away from the connecting horizontal plate, two drainage ports are arranged between adjacent two reinforcing ribs, a hollow rod is rotatably connected in the vertical direction at the center of the drainage port, and filter screens are fixedly connected on both sides of the hollow rod.

[0013] Preferably, the both ends of the hollow rod are abutted with water absorption expansion rubber, a hollow slot is arranged at the inside center of the hollow rod, a plurality of second through holes are communicated with the both sides of the hollow slot, the ends of the second through holes away from the hollow slot are abutted with the water filtering mesh plate, the dam body is fixedly connected with two mounting sliding rails with a U-shaped section on the side close to the connecting horizontal plate, and the plate valves are slidably connected in the mounting sliding rails.

[0014] Preferably, four embedding grooves are arranged in the inside of the dam body, the embedding grooves are respectively arranged at the top and bottom of the two water outlets, the hollow slot arranged in the inside of the hollow rod is communicated with the embedding grooves, the first sliding plates are slidably connected in the embedding grooves, and the reinforcing blocks are fixedly connected at the center of the sides of the two first sliding plates on the same horizontal line and away from each other.

[0015] Preferably, the side of the reinforcing block away from the first sliding plate is provided with a sharp head for being inserted into the coal column dam body, the end of the reinforcing block away from the first sliding plate penetrates through the side edge wall plate of the side plate, the side of the first sliding plate away from the reinforcing block is abutted with water absorption expansion rubber, and the four water absorption expansion rubbers are respectively abutted with the two end wall plates of the two hollow rods.

[0016] Preferably, the both sides of the side plate are provided with sliding clamping grooves with a T-shaped section, the sliding clamping grooves are slidably connected with the sliding clamping strips, the both ends of the waterproof cloth are fixedly connected with the sliding clamping strips, and the side of the waterproof cloth close to the coal column dam body is fixedly connected with the water permeable cloth.

[0017] The beneficial effects of the present application are as follows:

[0018] 1、The setting of the waterproof cloth can effectively reduce the water infiltration in the coal column, so that the coal column dam body can be kept dry to a certain extent, and when a small amount of water infiltrates in the coal column dam body, the water in the coal column dam body is attracted by the water permeable cloth and then guided to the water absorption expansion interlayer, the water absorption expansion interlayer expands after absorbing water, and the water absorption expansion interlayer can increase the clamping of the coal column after expansion due to the support of the waterproof cloth, so that the coal column is extruded, the space with gaps in the coal column is gradually extruded and solidified, and the coal column becomes more solid after being extruded, thereby effectively solving the problem that the coal column is prone to loosen after being contacted with water.

[0019] 2、The present application can effectively adsorb toxic substances and impurities in water by placing the adsorption net in the reservoir, thereby achieving the purpose of purification. After the adsorption net adsorbs for a period of time, the adsorption net can be pulled up by the winding roller, and then the adsorption net can be cleaned. By setting the sedimentation slide rod, when the adsorption net is placed in water, the end of the adsorption net away from the winding roller can sink to the bottom of the water, ensuring the adsorption capacity of the adsorption net. During installation of the device, the adsorption net is released from the storage box, which can adsorb dust generated during installation, so that the device can reduce dust during installation.

[0020] 3、The present application can increase the occupied space of the coal column after the reinforcing block is inserted into the coal column, which can discharge the gap in the coal column and achieve a similar effect to the waterproof cloth, making the internal space of the coal column more compact. On the other hand, after the coal column is inserted by the reinforcing block, the volume of the coal column also increases, which makes the connection between the coal column and the waterproof cloth more compact. At this time, the reinforcing block can ensure that the waterproof cloth is tightly wrapped outside the coal column, so that the coal column is wrapped more completely by the waterproof cloth, thereby further strengthening the clamping effect of the waterproof cloth on the coal column. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings;

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the overall structure of the present application;

[0024] Figure 3 is a schematic diagram of the connection structure of the side plate of the present application;

[0025] Figure 4 is a schematic diagram of the structure of the water level gauge of the present application;

[0026] Figure 5 is a schematic diagram of the structure of the water level gauge of the present application; Figure 4 is an enlarged schematic diagram of the A part structure shown in the present application;

[0027] Figure 6 is a schematic diagram of the structure of the dam body of the present application;

[0028] Figure 7 is an enlarged schematic diagram of the B part structure shown in the present application; Figure 6 ​

[0029] Figure 8 is a structural section view of the foam board of the present application;

[0030] Figure 9 is a connection structure diagram of the connecting cross plate of the present application;

[0031] Figure 10 is a structural section view of the mounting block of the present application;

[0032] Figure 11 is a partial section view of the water permeable cloth of the present application;

[0033] Figure 12 is an enlarged view of the C part structure shown in the present application; Figure 11

[0034] The reference signs in the drawings are as follows: 1, dam body; 3, storage box; 4, water level gauge; 5, side plate; 6, reinforcing block; 7, water permeable cloth; 8, adsorption net; 9, support column; 10, mounting block; 11, gauze; 12, foam board; 13, settlement sliding rod; 14, sliding clamping strip; 15, waterproof cloth; 16, hollow rod; 17, reinforcing rib; 18, drainage port; 19, connecting cross plate; 20, sliding clamping groove; 21, water-absorbing and swelling resin; 22, support rod; 23, ring body; 24, filter screen; 25, first through hole; 26, first sliding plate; 27, water-absorbing and swelling rubber; 28, hollow groove; 29, second through hole; 30, mounting sliding rail; 31, plate valve; 32, rectangular sliding hole; 33, guide groove; 34, limiting groove; 35, plug-in plate; 36, second sliding plate; 37, water-absorbing and swelling interlayer; 38, filter screen plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] As Figures 1-12 ​As shown, a kind of underground reservoir artificial dam and coal pillar dam connection construction device, including dam main body 1, the both sides of dam main body 1 are fixedly connected with the side plate 5 of abutment with coal pillar dam, the both sides of side plate 5 are movably clamped with waterproof cloth 15 for wrapping coal pillar dam, the top side of dam main body 1 is fixedly connected with connecting cross plate 19, the bottom of connecting cross plate 19 is provided with multiple support posts 9 for reinforcing, water level gauge 4 for detecting water level is set on the two support posts 9 at the both ends of connecting cross plate 19, the side of opposite two adjacent support posts 9 is slidably installed with adsorption net 8 for adsorbing impurities and dust, the bottom of support post 9 is provided with mounting block 10 for reinforcing, dam main body 1 is provided with two drainage outlets 18 for draining. Through the setting of two water level gauges 4, when monitoring water level, the readings of two water level gauges 4 are averaged, and the reading is the intersection point of connecting cross plate 19 and water level gauge 4.

[0037] As shown in Figures 1-3 and Figure 5 The inside center of support post 9 is embedded with support rod 22, the end of support rod 22 away from connecting cross plate 19 is fixedly connected with mounting block 10, circular groove is formed in the bottom center of support rod 22, first through hole 25 is communicated on the both sides of the middle section of circular groove, circular groove penetrates the bottom of support rod 22, rectangular groove is formed in the inside of mounting block 10, the top center of rectangular groove is communicated with circular groove, water-absorbing swelling resin 21 is embedded in the center of rectangular groove, second sliding plate 36 is abutted on the both sides of water-absorbing swelling resin 21. The setting of support rod 22 and support post 9 can effectively support connecting cross plate 19.

[0038] As shown in Figure 5 and Figure 10 The center of the side of two second sliding plates 36 away from each other is fixedly connected with plug-in plate 35, obliquely downward inclined groove is formed in the end of two plug-in plates 35 away from each other, sharp end for inserting into the soil at the bottom of underground reservoir is formed in the bottom of mounting block 10, ring body 23 is slidably connected in circular groove, filter screen 24 is fixedly sleeved on the top of inner ring of ring body 23, the bottom wall plate of ring body 23 is abutted on water-absorbing swelling resin 21, and ring body 23 is used to block first through hole 25. The length of ring body 23 is greater than half of the length of circular groove, when the top of ring body 23 is abutted on the top of circular groove, the bottom of ring body 23 can block first through hole 25.

[0039] As shown in Figures 1-3 and Figure 8As shown, the bottom of the water level gauge 4 is fixedly connected with a foam plate 12, the two sides of the foam plate 12 are fixedly connected with a rectangular sliding block, the rectangular sliding block is slidingly connected with a guide groove 33, the two ends of the dam body 1 are provided with the guide groove 33, the side of the two pillars 9 close to the dam body 1 is also provided with the guide groove 33, the two foam plates 12 are slidingly installed between the pillars 9 and the dam body 1 through the four guide grooves 33, the two ends of the connecting plate 19 are provided with a rectangular sliding hole 32 in the vertical direction, the water level gauge 4 is slidingly connected in the rectangular sliding hole 32, the bottom of the foam plate 12 is fixedly connected with a gauze screen 11, the bottom of the gauze screen 11 is fixedly connected with the bottom of the underground reservoir, and the length of the gauze screen 11 is higher than the height of the dam body 1. The gauze screen 11 and the adsorption screen 8 are made of the same material.

[0040] As shown in Figures 1-3 and Figures 9-10 , the side opposite to each other of the two adjacent pillars 9 is provided with a limiting groove 34, the limiting groove 34 is slidingly connected with a settlement sliding rod 13, the top of the settlement sliding rod 13 is fixedly connected with the adsorption screen 8, the end of the adsorption screen 8 away from the settlement sliding rod 13 penetrates through the top wall plate of the connecting plate 19, a plurality of storage boxes 3 are fixedly connected on the connecting plate 19, a winding roller is rotatably connected in the storage box 3, and the end of the adsorption screen 8 away from the settlement sliding rod 13 is fixedly connected on the winding roller. The limiting groove 34 can effectively guide and limit the settlement sliding rod 13, so that the adsorption screen 8 can be located between the two adjacent pillars 9.

[0041] As shown in Figures 1-2 and Figure 6 , the side of the dam body 1 away from the connecting plate 19 is fixedly connected with three reinforcing ribs 17 with triangular cross sections, two drainage openings 18 are arranged between the two adjacent reinforcing ribs 17, the center of the drainage opening 18 is rotatably connected with a hollow rod 16 in the vertical direction, the two sides of the hollow rod 16 are fixedly connected with a water filter screen plate 38, and the end of the water filter screen plate 38 away from the hollow rod 16 is fixedly connected on the side wall plate of the drainage opening 18. The reinforcing rib 17 can improve the water pressure resistance of the device, so that the water pressure can be dispersed through the reinforcing rib 17.

[0042] As shown in Figures 6-9As shown, the two ends of the hollow rod 16 are abutted with water absorption expansion rubber 27, the inside center of the hollow rod 16 is provided with a hollow groove 28, the two sides of the hollow groove 28 are communicated with a plurality of second through holes 29, the end of the second through hole 29 away from the hollow groove 28 is abutted with the water filter screen plate 38, the side of the dam body 1 close to the connecting horizontal plate 19 is fixedly connected with two mounting sliding rails 30 with "U" shaped cross section, the mounting sliding rails 30 are slidably connected with the plate valve 31, and the two plate valves 31 are respectively movably sealed on the two water outlets 18. The side of the water outlet 18 close to the plate valve 31 is provided with a sealing ring, which is used to prevent the leakage of the water outlet 18.

[0043] As shown in Figures 4-5 and Figure 10 , the inside of the dam body 1 is provided with four embedding grooves, the four embedding grooves are respectively located at the top and bottom of the two water outlets 18, the hollow groove 28 provided in the hollow rod 16 is communicated with the embedding groove, the embedding groove is slidably connected with the first sliding plate 26, and the two first sliding plates 26 on the same horizontal line are fixedly connected with the reinforcing block 6 at the side center away from each other. The setting of the reinforcing block 6 can improve the connection between the dam body 1 and the coal column dam body, and also promote the clamping of the waterproof cloth 15 to the coal column.

[0044] As shown in Figure 10 , the side of the reinforcing block 6 away from the first sliding plate 26 is provided with a sharp head, the sharp head is used for inserting into the coal column dam body, the end of the reinforcing block 6 away from the first sliding plate 26 penetrates the side edge wall plate of the side plate 5, the side of the first sliding plate 26 away from the reinforcing block 6 is abutted with the water absorption expansion rubber 27, the four water absorption expansion rubbers 27 are respectively abutted with the two end wall plates of the two hollow rods 16, and the water absorption expansion rubber 27 is arranged in the embedding groove. The water absorption expansion rubber 27 will not shrink after drying.

[0045] As shown in Figure 3 and Figures 11-12 , the two sides of the side plate 5 are provided with sliding clamping grooves 20 with "T" shaped cross section, the sliding clamping grooves 20 are slidably connected with the sliding clamping strips 14, the two ends of the waterproof cloth 15 are fixedly connected with the sliding clamping strips 14, the side of the waterproof cloth 15 close to the coal column dam body is fixedly connected with the water permeable cloth 7, the inside of the water permeable cloth 7 is embedded with the water absorption expansion interlayer 37, and the water absorption expansion interlayer 37 is used to reinforce the coal column dam body. The water permeable cloth 7 can absorb water on one hand, and can also reinforce the water absorption expansion interlayer 37 on the other hand, so as to avoid the irregular expansion of the water absorption expansion interlayer 37.

[0046] The dam body 1 is installed between two adjacent coal pillar dams before the underground reservoir is filled with water, and the two side plates 5 are abutted with the coal pillar dams on the side away from each other, and the reinforcing block 6 is inserted into the coal pillar dam, then the installation block 10 is inserted into the soil at the bottom of the underground reservoir, and then the waterproof cloth 15 is wrapped outside the coal pillar dam, so that the waterproof cloth 15 is located on the side of the coal pillar dam close to the center of the underground reservoir. Since the coal pillar dam is intentionally left in the unmined area during mining to support the ground, the coal pillar is mostly columnar, and the dam body 1 is arranged on both sides of the coal pillar, and the two ends of the waterproof cloth 15 are connected to the ends of the dam body 1 close to each other, and the two ends of the waterproof cloth 15 are respectively clamped in the two sliding clamping grooves 20 on the side of the two adjacent dam bodies 1 close to each other, so that the two dam bodies 1 on the side close to each other can wrap the coal pillar dam. During installation of the dam body 1, the adsorption net 8 is released from the storage box 3, so that the sinking slide rod 13 slides to the bottom of the limiting groove 34, and the adsorption net 8 can adsorb the dust generated during installation, so that the device can reduce dust.

[0047] After the dam body 1 is installed, water is injected into the underground reservoir to effectively store water. After the underground reservoir is filled with water, the water flows into the circular groove through the first through hole 25, and then flows to the water-absorbing and expanding resin 21 through the filter screen 24. The water-absorbing and expanding resin 21 can effectively expand after being contacted with water. With the expansion of the water-absorbing and expanding resin 21, on the one hand, the ring body 23 is pushed upward, and on the other hand, the insertion plate 35 on both sides of the installation block 10 is pushed away from the water-absorbing and expanding resin 21. During movement of the insertion plate 35, the inclined groove on the side away from the second slide plate 36 of the insertion plate 35 moves towards the soil on the side of the underground reservoir, so that the insertion plate 35 can be inserted into the soil, so that the installation block 10 can increase the contact area with the soil through the insertion plate 35, improve the weight borne by the installation block 10, and achieve the purpose of reinforcing the installation block 10. When the ring body 23 moves upward, the ring body 23 gradually blocks the first through hole 25. After the first through hole 25 is blocked, on the one hand, it can avoid the situation that the water-absorbing and expanding resin 21 leaks from the first through hole 25 due to excessive expansion of the water-absorbing and expanding resin 21, and on the other hand, it can also avoid too much water flowing into the circular groove.

[0048] After the underground reservoir is injected with water, the water flow will gradually penetrate into the coal pillar. After the coal pillar is penetrated by water, the coal pillar will become loose, and there is a risk of collapse of the coal pillar. By arranging the waterproof cloth 15, on the one hand, the amount of water penetration into the coal pillar can be effectively reduced, so that the coal pillar dam body can maintain dryness to a certain extent. On the other hand, when a small amount of water penetrates into the coal pillar dam body, the water in the coal pillar dam body will be attracted by the water-permeable cloth 7 and then guided to the water-absorbing and expanding interlayer 37. After absorbing water, the water-absorbing and expanding interlayer 37 expands. Due to the support of the waterproof cloth 15, the water-absorbing and expanding interlayer 37 will increase the clamping of the coal pillar after expansion, so that the coal pillar is extruded, and the space with gaps in the coal pillar is gradually extruded to become solid. After the coal pillar is extruded, the coal pillar becomes more solid, effectively solving the problem that the coal pillar is easy to loosen after being in contact with water.

[0049] The waterproof cloth 15 can reinforce the coal pillar on the one hand, and reduce the contact area between the coal pillar and the water in the underground reservoir on the other hand, thereby reducing the amount of harmful substances in the coal pillar mixed into the water. After the reservoir is injected with water, the adsorption net 8 is placed in the reservoir, so that the adsorption net 8 can effectively adsorb toxic substances and impurities in the water, thereby achieving the purpose of purification. After the adsorption net 8 adsorbs for a period of time, the adsorption net 8 can be pulled up by the winding roller, and then the adsorption net 8 can be cleaned. By arranging the settling slide rod 13, when the adsorption net 8 is placed in the water, the end of the adsorption net 8 away from the winding roller can sink to the bottom of the water, ensuring the adsorption capacity of the adsorption net 8. By arranging the foam plate 12, the water in the reservoir will always exert a buoyancy on the foam plate 12, so that the foam plate 12 always floats above the reservoir. The water level in the reservoir can be monitored in real time by the water level gauge 4 at this time, and the gauze net 11 can also play a role in adsorbing impurities in the water at the bottom of the foam plate 12.

[0050] When the water in the reservoir is needed, the control plate valve 31 is slid upward so that the plate valve 31 no longer blocks the drain port 18, so that the water flow can flow out through the drain port 18. In the process of flowing out, the adsorption net 8 can play a role similar to filtering, so that the quality of the water discharged from the reservoir is guaranteed. At the same time, the water filtering net plate 38 arranged in the drain port 18 can play a role in secondary filtering of the water flow, further ensuring the quality of the water discharged from the reservoir, and avoiding the case that the discharged water contains a large amount of impurities and is polluted. In the process of draining, the water flow also enters the hollow groove 28 through the second through hole 29, and then acts on the water-absorbing and expanding rubber 27 through the hollow groove 28. The water-absorbing and expanding rubber 27 expands after absorbing water, and then the first sliding plate 26 drives the reinforcing block 6 to move towards the coal pillar, so that the connection between the coal pillar and the dam body main body 1 is more closely connected, improving the firmness of the dam body main body 1.

[0051] When the reinforcing block 6 moves towards the coal pillar, after the reinforcing block 6 is inserted into the coal pillar, the occupied space of the coal pillar is increased, on the one hand, the gap in the coal pillar can be discharged, similar to the function of the waterproof cloth 15, so that the internal space of the coal pillar becomes more compact, on the other hand, after the coal pillar is inserted by the reinforcing block 6, the volume of the coal pillar is also increased, after the volume of the coal pillar is increased, the connection between the waterproof cloth 15 is more closely, at this time, the reinforcing block 6 can ensure that the waterproof cloth 15 is tightly wrapped outside the coal pillar, so that the coal pillar is wrapped more completely by the waterproof cloth 15, and then the clamping effect of the waterproof cloth 15 on the coal pillar can be further strengthened. After the drainage work is completed, the plate valve 31 is blocked in the drainage port 18, after the plate valve 31 is blocked on the drainage port 18, the contact between the hollow rod 16 and the filter screen plate 38 and the water is disconnected, so that the hollow rod 16 and the filter screen plate 38 can be naturally dried.

[0052] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A connecting construction device for connecting an underground water reservoir artificial dam body and a coal pillar dam body, comprising a dam body main body (1), characterized in that, Both sides of the dam body (1) are fixedly connected with side plates (5) abutting against the coal pillar dam body, both sides of the side plate (5) are movably connected with waterproof cloth (15) for wrapping the coal pillar dam body, one side of the top of the dam body (1) is fixedly connected with a connecting horizontal plate (19), the bottom of the connecting horizontal plate (19) is provided with a plurality of supporting columns (9) for reinforcement, the two supporting columns (9) at both ends of the connecting horizontal plate (19) are provided with water level gauges (4) for detecting water level, the sides opposite to each other of the adjacent two supporting columns (9) are slidably provided with adsorption nets (8) for adsorbing impurities and dust, the bottom of the supporting column (9) is provided with a mounting block (10) for reinforcement, and the dam body (1) is provided with two drainage openings (18) for drainage. The inside center of the supporting column (9) is embedded with a supporting rod (22), one end of the supporting rod (22) away from the connecting horizontal plate (19) is fixedly connected with the mounting block (10), the bottom center of the supporting rod (22) is provided with a circular groove, the two sides of the middle section of the circular groove are communicated with first through holes (25), the circular groove penetrates the bottom of the supporting rod (22), the inside of the mounting block (10) is provided with a rectangular groove, the top center of the rectangular groove is communicated with the circular groove, the center of the rectangular groove is embedded with water-absorbing swelling resin (21), and the two sides of the water-absorbing swelling resin (21) are abutted with second sliding plates (36). The center of the side away from each other of the two second sliding plates (36) is fixedly connected with a plug-in plate (35), the end away from each other of the two plug-in plates (35) is provided with an inclined downward inclined groove, the bottom of the mounting block (10) is provided with a sharp end for inserting into the soil at the bottom of the underground reservoir, the circular groove is slidably connected with a ring body (23), the inner ring top of the ring body (23) is fixedly sleeved with a filter screen (24), the bottom wall plate of the ring body (23) abuts against the water-absorbing swelling resin (21), and the ring body (23) is used for plugging the first through hole (25).

2. The connecting construction device of the underground water reservoir artificial dam and the coal pillar dam according to claim 1, characterized in that, The bottom of the water level gauge (4) is fixedly connected with a foam plate (12), the two sides of the center of the foam plate (12) are fixedly connected with rectangular sliding blocks, the rectangular sliding blocks are slidably connected with guide grooves (33), the two ends of the dam body (1) are provided with guide grooves (33), the sides close to the dam body (1) of the two supporting columns (9) at both ends of the connecting horizontal plate (19) are also provided with guide grooves (33), the two foam plates (12) are slidably installed between the supporting columns (9) and the dam body (1) through the four guide grooves (33), the centers of the two ends of the connecting horizontal plate (19) are provided with rectangular sliding holes (32) in the vertical direction, the water level gauge (4) is slidably connected in the rectangular sliding hole (32), the bottom center of the foam plate (12) is fixedly connected with a gauze screen (11), the bottom of the gauze screen (11) is fixedly connected with the bottom of the underground reservoir, and the length of the gauze screen (11) is higher than the height of the dam body (1).

3. The connecting construction device of the underground water reservoir artificial dam and the coal pillar dam according to claim 2, characterized in that, The side opposite to each other of two adjacent support posts (9) is provided with a limiting groove (34), a settlement sliding rod (13) is slidably connected in the limiting groove (34), the top of the settlement sliding rod (13) is fixedly connected with an adsorption net (8), one end of the adsorption net (8) away from the settlement sliding rod (13) penetrates through the top wall plate of the connecting horizontal plate (19), a plurality of storage boxes (3) are fixedly connected on the connecting horizontal plate (19), a winding roller is rotatably connected in the storage box (3), and one end of the adsorption net (8) away from the settlement sliding rod (13) is fixedly connected on the winding roller.

4. The connecting construction device of the underground reservoir artificial dam and the coal pillar dam according to claim 1, characterized in that, The side, away from the connecting horizontal plate (19), of the dam body (1) is fixedly connected with three reinforcing ribs (17) with triangular cross sections, two water drainage openings (18) are arranged between two adjacent reinforcing ribs (17), and a hollow rod (16) is rotatably connected at the center of the water drainage opening (18) in the vertical direction. The two sides of the hollow rod (16) are fixedly connected with water filtering mesh plates (38), and one end of the water filtering mesh plate (38) away from the hollow rod (16) is fixedly connected to the side wall plate of the water drainage opening (18).

5. The connecting construction device of the underground water reservoir artificial dam and the coal pillar dam according to claim 4, characterized in that, The two ends of the hollow rod (16) are abutted with water absorption expansion rubbers (27), a hollow groove (28) is arranged at the inner center of the hollow rod (16), a plurality of second through holes (29) are communicated with the two sides of the hollow groove (28), one end of the second through hole (29) away from the hollow groove (28) is abutted with the water filtering mesh plate (38), the side, close to the connecting horizontal plate (19), of the dam body (1) is fixedly connected with two mounting sliding rails (30) with "U" shaped cross sections, plate valves (31) are slidably connected in the mounting sliding rails (30), and the two plate valves (31) are movably sealed on the two water drainage openings (18) respectively.

6. The connecting construction device of the underground water reservoir artificial dam and the coal pillar dam according to claim 5, characterized in that, The inside of the dam body (1) is provided with four embedding grooves, the four embedding grooves are arranged at the top and bottom of the two water drainage openings (18) respectively, the hollow groove (28) arranged in the hollow rod (16) is communicated with the embedding groove, a first sliding plate (26) is slidably connected in the embedding groove, and the center of the side, away from each other, of the two first sliding plates (26) on the same horizontal line is fixedly connected with a reinforcing block (6).

7. The connecting construction device of the underground water reservoir artificial dam and the coal pillar dam according to claim 6, characterized in that, The side, away from the first sliding plate (26), of the reinforcing block (6) is provided with a sharp head, the sharp head is used for being inserted into the coal column dam body, one end of the reinforcing block (6) away from the first sliding plate (26) penetrates through the side edge wall plate of the side plate (5), the side, away from the reinforcing block (6), of the first sliding plate (26) is abutted with a water absorption expansion rubber (27), the four water absorption expansion rubbers (27) are respectively abutted with the two end wall plates of the two hollow rods (16), and the water absorption expansion rubber (27) is arranged in the embedding groove.

8. The connecting construction device of the underground reservoir artificial dam and the coal pillar dam according to claim 1, characterized in that, The two sides of the side plate (5) are provided with sliding clamping grooves (20) with "T" shaped cross sections, sliding clamping strips (14) are slidably connected in the sliding clamping grooves (20), the two ends of the waterproof cloth (15) are fixedly connected with the sliding clamping strips (14), the side, close to the coal column dam body, of the waterproof cloth (15) is fixedly connected with a water permeable cloth (7), the inside of the water permeable cloth (7) is embedded with a water absorption expansion interlayer (37), and the water absorption expansion interlayer (37) is used for reinforcing the coal column dam body.

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