Foundation pit drainage device

Abstract

The utility model discloses a foundation pit drainage device which comprises a foundation pit body, a slope top drainage ditch is arranged at the top of the foundation pit body, a slope toe drainage ditch is arranged at the bottom of the foundation pit body, a water collecting tank is arranged at the corner of the left rear side of the slope toe drainage ditch, and two through openings are provided with through opening filter screens. A slope toe drainage ditch first-layer filter screen and a slope toe drainage ditch second-layer filter screen are installed on the upper middle portion and the lower middle portion of an inner cavity of the slope toe drainage ditch respectively, and through double-layer filtering of the slope toe drainage ditch first-layer filter screen and the slope toe drainage ditch second-layer filter screen, filtering treatment can be conducted through the through opening filter screen; double filtering treatment of impurity discharging and sludge discharging is added, rapid drainage of the deep foundation pit is facilitated, the underwater electricity storage box and the multiple rotating blades are designed, water accumulation cannot be caused, drainage is facilitated, scouring of water flow to the foundation pit can be reduced through the additionally-arranged downstream plate grooves, and damage caused by water flow scouring of the foundation pit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a foundation pit drainage device. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane dimensions. When the construction project is excavating the foundation pit, if the groundwater level is high and the base surface height is below the groundwater level, it is necessary to dewater it to ensure subsequent construction. The foundation pit drainage is mainly divided into open drainage method and well point dewatering method, among which the open drainage method is the most common and applied. During the drainage process inside the deep foundation pit, there are a lot of impurities and sludge in the water, which makes it difficult to discharge and easy to accumulate when filtering water in the deep foundation pit drainage, which is not conducive to the rapid drainage of the deep foundation pit. The existing foundation pit drainage device is relatively simple in removing impurities and sludge, which is not conducive to drainage efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a foundation pit drainage device to solve the problem that a large amount of impurities and sludge exist in the water during the drainage process inside the deep foundation pit proposed in the above-mentioned background technology, making it difficult to discharge and easy to accumulate when filtering water in the deep foundation pit drainage, thereby being not conducive to the rapid drainage of the deep foundation pit. The existing foundation pit drainage device has a relatively simple method for discharging impurities and sludge, which is not conducive to the efficiency of drainage.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit drainage device, including a foundation pit body, a slope top drainage ditch is arranged on the top of the foundation pit body, a slope foot drainage ditch is arranged on the bottom of the foundation pit body, the slope top drainage ditch is provided with a slope top drainage ditch inner cavity, the slope foot drainage ditch is provided with a slope foot drainage ditch inner cavity, a water collecting pool is provided at the left rear corner of the slope foot drainage ditch, and openings are provided at the left rear corner of the slope foot drainage ditch on the rear and left sides of the water collecting pool, and opening filter screens are installed on the two openings, and the inner cavity of the slope foot drainage ditch is provided with a water collecting pool. The first layer filter screen of the slope foot drainage ditch and the second layer filter screen of the slope foot drainage ditch are respectively installed in the upper and middle parts of the cavity. The bottom four corners of the first layer filter screen of the slope foot drainage ditch and the top four corners of the second layer filter screen of the slope foot drainage ditch are fixedly connected with pads, and multiple pads are fixedly engaged with the upper and lower ends of the corresponding connecting hanging rods. The front left end of the water collection pool is connected with one end of the connecting pipe, and the other end of the connecting pipe is connected with the rear side of the submersible pump. The front side of the submersible pump is connected with one end of the through pipe, and the other end of the through pipe extends to the upper left front side of the slope top drainage ditch.

[0005] As a preferred technical solution of the utility model, a connecting waterproof shaft is installed on the right front side of the interior of the water collecting pool, and a plurality of rotating blades are installed on the connecting waterproof shaft. The interior of the connecting waterproof shaft is electrically connected to the interior of the inner wire of the casing, and the inner wire of the casing is electrically connected to the underwater power storage box.

[0006] As a preferred technical solution of the utility model, a plurality of plate grooves are equidistantly installed on the inner side of the foundation pit body, and the bottoms of the plurality of plate grooves are in contact with the top of the drainage ditch at the foot of the slope.

[0007] As a preferred technical solution of the utility model, the slope top drainage ditch is discharged in the form of an open ditch, and mesh spraying is used within the drainage ditch range around the top of the foundation pit body.

[0008] As a preferred technical solution of the utility model, filter connecting plates are installed on the edge sides of the two through-port filters, and the sides of the multiple filter connecting plates and the through-ports are detachably connected to the second fastening blind rivets, and connecting sleeves are installed on the top four sides of the first layer of filter of the slope foot drainage ditch, and the connecting sleeves and the four inner sides of the slope foot drainage ditch are detachably connected to the first fastening blind rivets.

[0009] As a preferred technical solution of the utility model, a slope top drainage ditch hanging net is installed on the upper part of the inner cavity of the slope top drainage ditch, and the rear side of the slope top drainage ditch is connected with two pipes 2.

[0010] As a preferred technical solution of the utility model, the front left end and the rear right end of the slope foot drainage ditch are both connected with a pipe 1.

[0011] As a preferred technical solution of the utility model, the underwater power storage box and the submersible pump are both sleeved with a sealed casing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The water in the inner cavity of the drainage ditch at the foot of the slope will be filtered through the first filter screen at the foot of the slope drainage ditch and the second filter screen at the foot of the slope drainage ditch. After the double filtration, it will pass through the two openings again, and then the filter screens on the two openings will also be filtered and flow into the water collection tank. In this way, the water inside the water collection tank is pumped out by the submersible pump and discharged to the outside of the foundation pit through the through pipe, thereby increasing the double filtration treatment of impurities and sludge, which is conducive to the rapid drainage of deep foundation pits;

[0014] 2. By designing an underwater power storage box and multiple rotating blades, the electricity inside the underwater power storage box is used to rotate the multiple rotating blades through the electrically connected waterproof shaft and the inner wire of the casing, so that the gathered water inside the collecting pool is mobilized, so that the water inside the collecting pool will not accumulate easily. At the same time, the water inside the inner cavity of the slope foot drainage ditch connected together will also be mobilized, and the filtered water will be stored in the collecting pool through the filtering of the through-mouth filter. When filtering water in the deep foundation pit drainage, water will not accumulate and be difficult to discharge.

[0015] 3. The drainage ditch on the top of the slope is in the form of an open ditch, which is simple, clear and convenient for maintenance. The drainage ditch around the top of the foundation pit is sprayed with a hanging net to prevent surface water from seeping in.

[0016] 4. By installing multiple grooves along the plate at equal intervals on the inner side of the foundation pit, when water flows into the foundation pit, the added grooves along the plate can reduce the scouring of the foundation pit by the water flow. When water flows in, the grooves along the plate can resist some of the scouring of the water flow, reducing the damage caused by the scouring of the water flow to the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top perspective view of the utility model;

[0018] Figure 2 It is the internal structure diagram of the utility model;

[0019] Figure 3 It is a detailed illustration of the utility model;

[0020] Figure 4 It is a right side sectional view of the utility model;

[0021] Figure 5 It is a rear perspective view of the utility model;

[0022] Figure 6 It is a main perspective view of the utility model.

[0023] In the figure: 1. foundation pit body; 2. drainage ditch on top of slope; 3. drainage ditch on foot of slope; 4. inner cavity of drainage ditch on top of slope; 5. inner cavity of drainage ditch on foot of slope; 6. through-port; 7. second layer filter screen of drainage ditch on foot of slope; 8. first layer filter screen of drainage ditch on foot of slope; 9. through-port filter screen; 10. connecting sleeve; 11. first fastening blind rivet; 12. water collecting tank; 13. filter screen connecting plate; 14. second fastening blind rivet; 15. connecting waterproof shaft rod; 16. rotating blade; 17. inner wire of casing; 18. underwater power storage box; 19. sealed shell; 20. submersible pump; 21. connecting pipe; 22. through-pipe; 23. hanging net of drainage ditch on top of slope; 24. plate groove; 25. pipe one; 26. pipe two; 27. pad; 28. connecting hanging rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-6The utility model provides a foundation pit drainage device, including a foundation pit body 1, a top drainage ditch 2 is arranged on the top of the foundation pit body 1, a foot drainage ditch 3 is arranged on the bottom of the foundation pit body 1, the top drainage ditch 2 is provided with a top drainage ditch inner cavity 4, the foot drainage ditch 3 is provided with a foot drainage ditch inner cavity 5, a water collecting tank 12 is opened at the left rear corner of the foot drainage ditch 3, and a through opening 6 is opened at the left rear corner of the foot drainage ditch 3, which is located on the rear and left sides of the water collecting tank 12, and the two through openings 6 are both installed with through-port filter screens 9, the first layer filter screen 8 of the foot drainage ditch and the second layer filter screen 7 of the foot drainage ditch are respectively installed in the middle upper part and the middle lower part of the inner cavity 5 of the foot drainage ditch, and the bottom four corners of the first layer filter screen 8 of the foot drainage ditch and the top four corners of the second layer filter screen 7 of the foot drainage ditch are fixedly connected with pads 2 7. Multiple pads 27 are fixedly connected with the upper and lower ends of the corresponding connecting hanging rods 28. The front left end of the water collecting tank 12 is connected with one end of the connecting pipe 21, and the other end of the connecting pipe 21 is connected with the rear side of the submersible pump 20. The front side of the submersible pump 20 is connected with one end of the through pipe 22, and the other end of the through pipe 22 extends to the upper left front side of the slope top drainage ditch 2. The water in the inner cavity 5 of the slope foot drainage ditch will pass through the double-layer filtration of the first layer of filter screen 8 of the slope foot drainage ditch and the second layer of filter screen 7 of the slope foot drainage ditch. After the double-layer filtration, it will pass through the two through ports 6 again, and then the through port filter screens 9 on the two through ports 6 will also be filtered and flow into the water collecting tank 12. In this way, the water inside the water collecting tank 12 is pumped out by the submersible pump 20 and discharged to the outside of the foundation pit through the through pipe 22.

[0026] A connecting waterproof shaft 15 is installed on the right front side of the interior of the water collecting pool 12, and a plurality of rotating blades 16 are installed on the connecting waterproof shaft 15. The interior of the connecting waterproof shaft 15 is electrically connected to the interior of the inner line 17 of the casing, and the inner line 17 of the casing is electrically connected to the underwater power storage box 18. The water in the water collecting pool 12 needs to be precipitated in the sedimentation well to meet the discharge standard before it can be discharged into the municipal drainage facilities to prevent environmental pollution. Therefore, an underwater power storage box 18 and a plurality of rotating blades 16 are designed. The electricity inside the underwater power storage box 18 is used to rotate the plurality of rotating blades 16 through the electrically connected connecting waterproof shaft 15 and the inner line 17 of the casing, so as to activate the collected water inside the water collecting pool 12. In this way, the water inside the water collecting pool 12 will not accumulate easily, and the water inside the inner cavity 5 of the slope foot drainage ditch connected together with the movement will also be activated, and the filtered water will be stored in the water collecting pool 12 through the filtration of the through-mouth filter 9.

[0027] A plurality of plate grooves 24 are evenly installed on the inner side of the foundation pit body 1, and the bottoms of the plurality of plate grooves 24 are in contact with the top of the drainage ditch 3 at the foot of the slope. By evenly installing a plurality of plate grooves 24 on the inner side of the foundation pit body 1, when water flows into the foundation pit body 1, the added plurality of plate grooves 24 can reduce the scouring of the foundation pit by the water flow, and the plate grooves 24 can resist some of the scouring by the water flow when water flows in.

[0028] The slope top drainage ditch 2 drains in the form of an open ditch, and a mesh spraying concrete is used within the drainage ditch range around the top of the foundation pit body 1. The slope top drainage ditch 2 drains in the form of an open ditch, which is simple and clear and convenient for maintenance. A mesh spraying concrete is used within the drainage ditch range around the top of the foundation pit body 1 to prevent surface water from seeping in.

[0029] Filter connecting plates 13 are installed on the edge sides of the two through-port filters 9, and multiple filter connecting plates 13 and the sides of the through-port 6 are detachably connected with the second fastening blind rivets 14. Connecting sleeves 10 are installed on the top four sides of the first layer of filter 8 of the slope foot drainage ditch, and the connecting sleeves 10 and the four inner sides of the slope foot drainage ditch 3 are detachably connected with the first fastening blind rivets 11. The through-port filter 9 is detachably installed on the through-port 6 through the filter connecting plates 13 and multiple second fastening blind rivets 14. The through-port filter 9 is used for filtering when water passes between the slope foot drainage ditch 3 and the water collection tank 12. The first layer of filter 8 of the slope foot drainage ditch is installed in the inner cavity 5 of the slope foot drainage ditch through the connecting sleeve 10 and multiple first fastening blind rivets 11.

[0030] A slope top drainage ditch hanging net 23 is installed on the upper part of the slope top drainage ditch inner cavity 4, and the slope top drainage ditch hanging net 23 is used to filter some larger impurities to prevent them from entering the slope top drainage ditch inner cavity 4. The rear side of the slope top drainage ditch 2 is connected with two pipes 26.

[0031] The front left end and the rear right end of the slope foot drainage ditch 3 are both connected with a pipe 25, which is convenient for connecting to other pipes that need to be used. The underwater power storage box 18 and the submersible pump 20 are both sleeved with a sealed shell 19 to increase the protection and sealing of the underwater power storage box 18 and the submersible pump 20. The underwater power storage box 18 is made of stainless steel with excellent acid and alkali resistance and corrosion resistance, and the submersible pump 20 is made of stainless steel.

[0032] In the utility model, the water in the inner cavity 5 of the drainage ditch at the foot of the slope will pass through the double-layer filtration of the first layer filter screen 8 of the drainage ditch at the foot of the slope and the second layer filter screen 7 of the drainage ditch at the foot of the slope, and will pass through the two through ports 6 again after the double-layer filtration, and then the through-port filter screens 9 on the two through ports 6 will also be filtered and flow into the water collection tank 12, so that the water inside the water collection tank 12 is pumped out by the submersible pump 20 and discharged to the outside of the foundation pit through the through pipe 22, thereby increasing the double filtration treatment of the impurities and sludge, which is conducive to the rapid drainage of the deep foundation pit;

[0033] The water in the water collection tank 12 needs to be precipitated in the sand settling well to meet the discharge standards before it can be discharged into the municipal drainage facilities to prevent environmental pollution. Therefore, an underwater power storage box 18 and multiple rotating blades 16 are designed. The electricity inside the underwater power storage box 18 is used to rotate the multiple rotating blades 16 through the electrically connected waterproof shaft 15 and the inner wire 17 of the casing, so that the gathered water inside the water collection tank 12 is activated. In this way, the water inside the water collection tank 12 will not accumulate easily. At the same time, the water inside the inner cavity 5 of the slope foot drainage ditch connected together will also be activated, and the filtered water will be stored in the water collection tank 12 through the filtration of the through-mouth filter screen 9. When the deep foundation pit is drained and the water is filtered, the water will not accumulate and be difficult to discharge.

[0034] The drainage ditch 2 on the top of the slope is in the form of an open ditch, which is simple, clear and convenient for maintenance. A hanging mesh is used within the drainage ditch around the top of the foundation pit body 1 to prevent surface water from seeping in. By installing multiple plate grooves 24 equidistantly on the inner side of the foundation pit body 1, when water flows into the foundation pit body 1, the added multiple plate grooves 24 can reduce the scouring of the foundation pit by the water flow. When water flows in, the plate grooves 24 can resist some of the scouring of the water flow, reducing the damage caused by the scouring of the foundation pit.

Claims

1. A foundation pit drainage device, comprising a foundation pit body (1), characterized in that: A slope top drainage ditch (2) is arranged at the top of the foundation pit body (1), a slope foot drainage ditch (3) is arranged at the bottom of the foundation pit body (1), the slope top drainage ditch (2) is provided with a slope top drainage ditch inner cavity (4), the slope foot drainage ditch (3) is provided with a slope foot drainage ditch inner cavity (5), a water collecting tank (12) is provided at the left rear corner of the slope foot drainage ditch (3), a through opening (6) is provided at the left rear corner of the slope foot drainage ditch (3) on the rear side and the left side of the water collecting tank (12), and through opening filters (9) are installed on the two through openings (6), and the middle upper part and the middle lower part of the slope foot drainage ditch inner cavity (5) are respectively installed with the slope foot drainage ditch first through opening (6). A first filter screen (8) and a second filter screen (7) at the foot of the slope drainage ditch, the bottom four corners of the first filter screen (8) at the foot of the slope drainage ditch and the top four corners of the second filter screen (7) at the foot of the slope drainage ditch are fixedly connected with pads (27), and a plurality of pads (27) are fixedly engaged with the upper and lower ends of corresponding connecting hanging rods (28), the front left end of the water collecting pool (12) is connected with one end of a connecting pipe (21), the other end of the connecting pipe (21) is connected with the rear side of a submersible pump (20), the front side of the submersible pump (20) is connected with one end of a through pipe (22), and the other end of the through pipe (22) extends to the upper left front side of the slope top drainage ditch (2).

2. The foundation pit drainage device according to claim 1, characterized in that: A connecting waterproof shaft (15) is installed on the right front side of the interior of the water collecting pool (12), and a plurality of rotating blades (16) are installed on the connecting waterproof shaft (15). The interior of the connecting waterproof shaft (15) is electrically connected to the interior of the casing inner wire (17), and the casing inner wire (17) is electrically connected to the underwater power storage box (18).

3. The foundation pit drainage device according to claim 1, characterized in that: A plurality of plate grooves (24) are equidistantly installed on the inner side of the foundation pit body (1), and the bottoms of the plurality of plate grooves (24) are in contact with the top of the drainage ditch (3) at the foot of the slope.

4. The foundation pit drainage device according to claim 1, characterized in that: The slope top drainage ditch (2) is used for drainage in the form of an open ditch, and mesh spraying of concrete is used within the drainage ditch range around the top of the foundation pit body (1).

5. The foundation pit drainage device according to claim 1, characterized in that: The edge sides of the two through-port filters (9) are both installed with filter connection plates (13), and the sides of the plurality of filter connection plates (13) and the through-port (6) are both detachably connected to the second fastening blind rivets (14). The top four sides of the first layer of filter (8) of the slope foot drainage ditch are both installed with connection sleeves (10), and the connection sleeves (10) and the four inner sides of the slope foot drainage ditch (3) are both detachably connected to the first fastening blind rivets (11).

6. The foundation pit drainage device according to claim 1, characterized in that: A slope top drainage ditch hanging net (23) is installed on the upper part of the inner cavity (4) of the slope top drainage ditch, and the rear side of the slope top drainage ditch (2) is connected to two pipes (26).

7. The foundation pit drainage device according to claim 1, characterized in that: The front left end and the rear right end of the slope foot drainage ditch (3) are both connected to a pipe 1 (25).

8. The foundation pit drainage device according to claim 2, characterized in that: The underwater electricity storage box (18) and the submersible pump (20) are both sleeved with a sealed housing (19).

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