Foundation pit drainage assembly for impurity removal and filtration

Abstract

The utility model discloses a foundation pit drainage assembly for impurity removal and filtration, and relates to the technical field of foundation pit drainage, the foundation pit drainage assembly comprises a fixed cylinder, a water pipe, a connecting pipe and a first filter screen cylinder, the inner wall of the first filter screen cylinder is fixedly connected with a second filter screen cylinder, and the second filter screen cylinder is sleeved on the outer wall of the connecting pipe; the second filter screen cylinder is in threaded connection with the connecting pipe, sealing rubber rings are fixedly connected to the connecting positions of the first filter screen cylinder and the fixing cylinder and the connecting positions of the second filter screen cylinder and the fixing cylinder, and a cleaning mechanism used for cleaning the outer wall of the first filter screen cylinder and the outer wall of the second filter screen cylinder is arranged on the fixing cylinder. Through the cleaning mechanism, the outer walls of the first filter screen cylinder and the second filter screen cylinder can be automatically cleaned when the amount of water pumped by the water pump is reduced due to the fact that meshes in the first filter screen cylinder and the second filter screen cylinder are blocked by impurities such as gravel, and therefore the drainage efficiency of the foundation pit can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundation pit drainage, specifically is the base pit drainage assembly of impurity filtration. BACKGROUND

[0002] The foundation pit refers to the space below the ground surface excavated for the construction of the foundation and basement of a building (including a structure), and is an engineering project that needs to be constructed in advance before the foundation construction, foundation treatment and underground building construction. In the construction process, in order to maintain the stability of the foundation pit, control the underground water level, improve the construction conditions, ensure the engineering quality and prevent geological disasters, drainage operation needs to be carried out on the foundation pit.

[0003] The existing foundation pit drainage usually adopts the water pump and pipeline mode to extract the accumulated water in the foundation pit. However, in the extraction process, impurities such as sand and grass carried in the water will enter the pipeline together, causing blockage of the pipeline and damage to the water pump. Therefore, a filter screen cylinder is usually installed at the end of the pipeline to filter the impurities in the water, thereby avoiding damage to the water pump. However, long-term use will cause the impurities to block the mesh holes of the filter screen cylinder, thereby affecting the efficiency of the drainage. In order to further improve the efficiency of the foundation pit drainage, based on this, the base pit drainage assembly of impurity filtration is provided, which can eliminate the disadvantages of the existing device. SUMMARY

[0004] The utility model aims at providing the base pit drainage assembly of impurity filtration to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The base pit drainage assembly of impurity filtration comprises a fixed cylinder, the top end of the fixed cylinder is fixedly connected with a water delivery pipe, the bottom end of the fixed cylinder is fixedly connected with a connecting pipe, the inner cavities of the water delivery pipe and the connecting pipe are mutually penetrated with the inner cavity of the fixed cylinder, the bottom end of the fixed cylinder is provided with a first filter screen cylinder, the first filter screen cylinder is located on the outer side of the connecting pipe, the inner wall of the first filter screen cylinder is fixedly connected with a second filter screen cylinder, the second filter screen cylinder is sleeved on the outer wall of the connecting pipe, the second filter screen cylinder is threadedly connected with the connecting pipe, the first filter screen cylinder and the second filter screen cylinder are fixedly connected with sealing rubber rings at the joint positions with the fixed cylinder, and the fixed cylinder is provided with a cleaning mechanism for cleaning the outer walls of the first filter screen cylinder and the second filter screen cylinder.

[0007] On the basis of the above-mentioned technical scheme, the utility model also provides the following optional technical scheme:

[0008] In an optional scheme, the cleaning mechanism comprises a lifting assembly arranged on the fixed cylinder.

[0009] The lifting assembly comprises a lifting disc arranged in the fixed cylinder, the bottom end of the lifting disc is fixedly connected with a lifting slide cylinder, the lifting slide cylinder penetrates the fixed cylinder to the inside of the connecting pipe, and the lifting slide cylinder is in sliding connection with the fixed cylinder and the connecting pipe;

[0010] The lifting disc is provided with a connecting assembly;

[0011] The fixed cylinder is provided with a rotating assembly;

[0012] The lifting slide cylinder is provided with a reset assembly.

[0013] In an alternative, the connecting assembly comprises a plurality of first connecting slide rods fixedly connected at the bottom end of the lifting disc at equal intervals in the circumferential direction, a plurality of second connecting slide rods fixedly connected at the bottom end of the lifting disc at equal intervals in the circumferential direction, the first connecting slide rods and the second connecting slide rods all penetrate to the outside of the bottom end of the fixed cylinder, the first connecting slide rods and the second connecting slide rods are in sliding connection with the fixed cylinder, the first connecting slide rods are located outside the first filter screen cylinder, and the second connecting slide rods are located outside the second filter screen cylinder;

[0014] The first filter screen cylinder and the second filter screen cylinder are both provided with a cleaning assembly.

[0015] In an alternative, the cleaning assembly comprises a plurality of first annular scrapers vertically and equidistantly sleeved on the outer wall of the first filter screen cylinder, the first annular scrapers are fixedly connected with the first connecting slide rods, the outer wall of the second filter screen cylinder is vertically and equidistantly sleeved with a plurality of second annular scrapers, and the second annular scrapers are fixedly connected with the second connecting slide rods.

[0016] In an alternative, the rotating assembly comprises a support frame fixedly connected to the inner wall of the fixed cylinder, the support frame is located at the port of the water delivery pipe, the bottom end of the support frame is rotatably connected with a turbofan, the bottom end of the turbofan is fixedly connected with a connecting rotating rod, and the turbofan and the connecting rotating rod are located in the inner cavity of the lifting slide cylinder;

[0017] The connecting rotating rod is provided with a moving assembly.

[0018] In an alternative, the moving assembly is a sliding sleeve frame sleeved on the outer wall of the connecting rotating rod, the sliding sleeve frame is located in the inside of the lifting slide cylinder, and the sliding sleeve frame is fixedly connected with the lifting slide cylinder.

[0019] The sliding sleeve frame is provided with a guide assembly.

[0020] In an alternative: the guide assembly comprises a plurality of guide blocks fixedly connected on the inner wall of the sliding sleeve frame at equal intervals in the circumferential direction, the outer wall of each of the plurality of guide blocks is hemispherical, and each of the plurality of guide blocks penetrates into the interior of the connecting rotating rod, and the connecting rotating rod is provided with a guide groove for the sliding of the guide blocks at the position where the connecting rotating rod is connected with the plurality of guide blocks.

[0021] In an alternative: the reset assembly is a spring sleeved on the outer wall of the lifting sliding cylinder, one end of the spring is in contact with the outer wall of the lifting pressure disc, and the other end of the spring is in contact with the inner wall of the fixed cylinder.

[0022] Compared with the prior art, the utility model has the beneficial effects as follows:

[0023] The utility model discloses a cleaning mechanism, can when the mesh of first filter screen cylinder, second filter screen cylinder is blocked by sand and other impurities, causes the water amount of water pump to draw to reduce, to the outer wall of first filter screen cylinder, second filter screen cylinder automatic cleaning is carried out to the efficiency of the drainage of foundation pit can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structural schematic diagram of the utility model.

[0025] Figure 2 It is the fixed cylinder internal structure schematic diagram of the utility model.

[0026] Figure 3 It is the fixed cylinder and support frame connecting structure schematic diagram of the utility model.

[0027] Figure 4 It is the lifting sliding cylinder and sliding sleeve frame connecting structure schematic diagram of the utility model.

[0028] Reference signs annotation: 1, fixed cylinder;201, spring;202, support frame;203, guide groove;204, turbofan;205, connecting rotating rod;206, guide block;207, lifting sliding cylinder;208, first annular scraper;209, first connecting sliding rod;2010, second connecting sliding rod;2011, second annular scraper;2012, sliding sleeve frame;2013, lifting pressure disc;3, water delivery pipe;4, first filter screen cylinder;5, second filter screen cylinder;6, connecting pipe. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed with the utility model by combining with the drawings and examples.

[0030] In one embodiment, as Figures 1-4As shown, the impurity-removing filtered foundation pit drainage assembly comprises a fixed cylinder 1, the top end of the fixed cylinder 1 is fixedly connected with a water delivery pipe 3, the bottom end of the fixed cylinder 1 is fixedly connected with a connecting pipe 6, the inner cavities of the water delivery pipe 3 and the connecting pipe 6 are mutually through with the inner cavity of the fixed cylinder 1, the bottom end of the fixed cylinder 1 is provided with a first filter screen cylinder 4, the first filter screen cylinder 4 is located outside the connecting pipe 6, the inner wall of the first filter screen cylinder 4 is fixedly connected with a second filter screen cylinder 5, the second filter screen cylinder 5 is sleeved on the outer wall of the connecting pipe 6, the second filter screen cylinder 5 is threadedly connected with the connecting pipe 6, the first filter screen cylinder 4 and the second filter screen cylinder 5 are fixedly connected with sealing rubber rings at the joint positions with the fixed cylinder 1, and the fixed cylinder 1 is provided with a cleaning mechanism for cleaning the outer walls of the first filter screen cylinder 4 and the second filter screen cylinder 5;

[0031] The cleaning mechanism comprises a lifting assembly arranged on the fixed cylinder 1;

[0032] The lifting assembly comprises a lifting pressure plate 2013 arranged inside the fixed cylinder 1, the bottom end of the lifting pressure plate 2013 is fixedly connected with a lifting sliding cylinder 207, the lifting sliding cylinder 207 penetrates through the fixed cylinder 1 to the inside of the connecting pipe 6, and the lifting sliding cylinder 207 is slidingly connected with the fixed cylinder 1 and the connecting pipe 6;

[0033] The lifting pressure plate 2013 is provided with a connecting assembly;

[0034] The fixed cylinder 1 is provided with a rotating assembly;

[0035] The lifting sliding cylinder 207 is provided with a reset assembly;

[0036] The reset assembly is a spring 201 sleeved on the outer wall of the lifting sliding cylinder 207, one end of the spring 201 is in contact with the outer wall of the lifting pressure plate 2013, and the other end of the spring 201 is in contact with the inner wall of the fixed cylinder 1;

[0037] In this embodiment, it needs to be particularly pointed out that the end of the water delivery pipe 3 away from the fixed cylinder 1 is fixedly connected with the input end of the water pump;

[0038] In use, the fixed cylinder 1 is placed in the foundation pit through the water delivery pipe 3, and it is ensured that the fixed cylinder 1 is completely immersed in water, then the water pump is started to perform the water pumping operation, at this time, the water in the foundation pit can be filtered through the first filter screen cylinder 4 and the second filter screen cylinder 5, then the filtered water passes through the lifting sliding cylinder 207 and the lifting pressure plate 2013 to the inner cavity of the water delivery pipe 3 in turn, and then the water can be delivered outside the foundation pit through the water delivery pipe 3, so that the drainage operation of the foundation pit can be performed, and the damage of the water pump caused by the impurities in the water can be effectively avoided through the impurity-removing filtration of the water;

[0039] In this process, the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be scraped and cleaned by the cleaning mechanism. At this time, the lifting pressure plate 2013 is retracted by moving the compression spring 201, so that the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be cleaned.

[0040] When the mesh holes on the first filter screen cylinder 4 and the second filter screen cylinder 5 are blocked by sand and other impurities, causing the water volume pumped by the water pump to decrease, the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be automatically cleaned by the cleaning mechanism. After that, the above operation is repeated, so that the efficiency of the foundation pit drainage can be further improved.

[0041] In one embodiment, as shown in Figures 2-4 The connecting assembly includes a plurality of first connecting slide rods 209 fixedly connected at the bottom end of the lifting pressure plate 2013 at equal intervals in the circumferential direction. The bottom end of the lifting pressure plate 2013 is fixedly connected with a plurality of second connecting slide rods 2010 at equal intervals in the circumferential direction. The first connecting slide rods 209 and the second connecting slide rods 2010 all penetrate to the outside of the bottom end of the fixed cylinder 1. The first connecting slide rods 209 and the second connecting slide rods 2010 are all in sliding connection with the fixed cylinder 1. The first connecting slide rods 209 are located outside the first filter screen cylinder 4, and the second connecting slide rods 2010 are located outside the second filter screen cylinder 5.

[0042] The first filter screen cylinder 4 and the second filter screen cylinder 5 are both provided with a cleaning assembly.

[0043] The cleaning assembly includes a plurality of first annular scrapers 208 slidingly sleeved on the outer wall of the first filter screen cylinder 4 at equal intervals in the vertical direction. The first annular scrapers 208 are fixedly connected with the first connecting slide rods 209. The outer wall of the second filter screen cylinder 5 is slidingly sleeved with a plurality of second annular scrapers 2011 at equal intervals in the vertical direction. The second annular scrapers 2011 are fixedly connected with the second connecting slide rods 2010. Through the cooperation of the connecting assembly and the cleaning assembly, the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be scraped and cleaned.

[0044] In one embodiment, as shown in Figures 2-4 The rotating assembly includes a support frame 202 fixedly connected to the inner wall of the fixed cylinder 1. The support frame 202 is located at the port of the water delivery pipe 3. The bottom end of the support frame 202 is rotatably connected with a turbofan 204. The bottom end of the turbofan 204 is fixedly connected with a connecting rotating rod 205. The turbofan 204 and the connecting rotating rod 205 are both located in the inner cavity of a lifting slide cylinder 207.

[0045] The connecting rotating rod 205 is provided with a moving assembly.

[0046] The moving assembly is a sliding sleeve 2012 sleeved on the outer wall of the connecting rotating rod 205, and the sliding sleeve 2012 is located in the interior of the lifting sliding cylinder 207 and is fixedly connected with the lifting sliding cylinder 207;

[0047] The sliding sleeve 2012 is provided with a guide assembly;

[0048] The guide assembly comprises a plurality of guide blocks 206 fixedly connected on the inner wall of the sliding sleeve 2012 at equal intervals in the circumferential direction, the outer wall of each guide block 206 is hemispherical, each guide block 206 penetrates into the interior of the connecting rotating rod 205, and the connecting rotating rod 205 is provided with a guide groove 203 for the sliding of the guide block 206 at the position where the connecting rotating rod 205 is connected with the guide block 206. Through the cooperation of the rotating assembly, the moving assembly and the guide assembly, when the mesh holes of the first filter screen cylinder 4 and the second filter screen cylinder 5 are blocked by impurities such as sand, the water quantity pumped by the water pump is reduced, and the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be cleaned through the movement of the reset.

[0049] The above embodiment discloses a filtering and impurity-removing foundation pit drainage assembly. In use, the fixed cylinder 1 is placed in the foundation pit through the water delivery pipe 3, and the fixed cylinder 1 is ensured to be completely immersed in water. Then the water pump is started to pump water. At this time, the water in the foundation pit is filtered through the first filter screen cylinder 4 and the second filter screen cylinder 5. Then the filtered water passes through the lifting sliding cylinder 207 and the lifting pressure disc 2013 in sequence to the inner cavity of the water delivery pipe 3. Then the water can be delivered outside the foundation pit through the water delivery pipe 3. In this way, the water in the foundation pit can be drained, and the damage of impurities in the water to the water pump can be effectively avoided through the filtering and impurity-removing of the water;

[0050] In this process, the vortex fan 204 rotates in the inner cavity of the lifting sliding cylinder 207 under the impact of the water flow. At this time, the connecting rotating rod 205 is driven by the vortex fan 204 to rotate synchronously along the inner wall of the sliding sleeve 2012. At the same time, the sliding sleeve 2012 is extruded by the guide block 206 on the inner wall of the guide groove 203 to drive the lifting sliding cylinder 207 to descend along the inner wall of the fixed cylinder 1 and the connecting pipe 6. At this time, the lifting pressure disc 2013 is driven by the lifting sliding cylinder 207 to drive the first connecting sliding rod 209 and the second connecting sliding rod 2010 to slide synchronously along the inner wall of the fixed cylinder 1. At the same time, the first annular scraper 208 and the second annular scraper 2011 are respectively driven by the first connecting sliding rod 209 and the second connecting sliding rod 2010 to scratch and clean the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5. At this time, the lifting pressure disc 2013 is contracted through the moving extrusion spring 201, so that the outer wall of the first filter screen cylinder 4 and the second filter screen cylinder 5 can be cleaned.

[0051] When the guide block 206 contacts the inner wall of the bottom end of the guide groove 203, the connecting rotating rod 205 stops rotating under the block of the outer wall of the guide block 206 through the guide groove 203, so as to position the sliding sleeve frame 2012;

[0052] When the mesh holes of the first filter screen cylinder 4 and the second filter screen cylinder 5 are blocked by sand and other impurities, so that the water quantity pumped by the water pump is reduced, the spring 201 pushes the sliding sleeve frame 2012 to reset through rebounding, and the sliding sleeve frame 2012 extrudes the inner wall of the guide groove 203 through the lifting slide cylinder 207 under the driving of the lifting pressure plate 2013, so as to drive the vortex fan 204 to rotate reversely through the connecting rotating rod 205;

[0053] Meanwhile, the first connecting slide rod 209 and the second connecting slide rod 2010 are driven by the lifting pressure plate 2013 to reset the first annular scraper 208 and the second annular scraper 2011 respectively, so as to clean the outer walls of the first filter screen cylinder 4 and the second filter screen cylinder 5 through the first annular scraper 208 and the second annular scraper 2011 respectively, and then repeat the above operation, so as to further improve the efficiency of the foundation pit drainage.

[0054] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A foundation pit drainage assembly for impurity removal and filtration, comprising a fixed cylinder (1), a water delivery pipe (3) is fixedly connected to the top end of the fixed cylinder (1), a connecting pipe (6) is fixedly connected to the bottom end of the fixed cylinder (1), the inner cavities of the water delivery pipe (3) and the connecting pipe (6) are mutually through with the inner cavity of the fixed cylinder (1), a first filter screen cylinder (4) is arranged at the bottom end of the fixed cylinder (1), the first filter screen cylinder (4) is located outside the connecting pipe (6), an inner wall of the first filter screen cylinder (4) is fixedly connected with a second filter screen cylinder (5), the second filter screen cylinder (5) is sleeved on the outer wall of the connecting pipe (6), the second filter screen cylinder (5) is threadedly connected with the connecting pipe (6), and sealing rubber rings are fixedly connected to the positions where the first filter screen cylinder (4) and the second filter screen cylinder (5) are connected with the fixed cylinder (1), characterized in that, The fixed cylinder (1) is provided with a cleaning mechanism for cleaning the outer walls of the first filter screen cylinder (4) and the second filter screen cylinder (5).

2. The decontamination filtered sump drainage assembly of claim 1, wherein, The cleaning mechanism comprises a lifting assembly arranged on the fixed cylinder (1). The lifting assembly comprises a lifting pressure plate (2013) arranged inside the fixed cylinder (1), the bottom end of the lifting pressure plate (2013) is fixedly connected with a lifting sliding cylinder (207), the lifting sliding cylinder (207) penetrates through the fixed cylinder (1) to the inside of the connecting pipe (6), and the lifting sliding cylinder (207) is in sliding connection with the fixed cylinder (1) and the connecting pipe (6). The lifting pressure plate (2013) is provided with a connecting assembly. The fixed cylinder (1) is provided with a rotating assembly. The lifting sliding cylinder (207) is provided with a reset assembly.

3. The decontamination filtered sump drainage assembly of claim 2, wherein, The connecting assembly comprises a plurality of first connecting sliding rods (209) fixedly connected at the bottom end of the lifting pressure plate (2013) at equal intervals in the circumferential direction, a plurality of second connecting sliding rods (2010) are fixedly connected at the bottom end of the lifting pressure plate (2013) at equal intervals in the circumferential direction, the first connecting sliding rods (209) and the second connecting sliding rods (2010) all penetrate to the outside of the bottom end of the fixed cylinder (1), the first connecting sliding rods (209) and the second connecting sliding rods (2010) are in sliding connection with the fixed cylinder (1), the first connecting sliding rods (209) are located outside the first filter screen cylinder (4), and the second connecting sliding rods (2010) are located outside the second filter screen cylinder (5). The first filter screen cylinder (4) and the second filter screen cylinder (5) are both provided with a cleaning assembly.

4. The debris-filtered excavation-drainage assembly of claim 3, wherein, The cleaning assembly comprises a plurality of first annular scrapers (208) vertically and equidistantly sleeved on the outer wall of the first filter screen cylinder (4), the first annular scrapers (208) are fixedly connected with the first connecting sliding rods (209), a plurality of second annular scrapers (2011) are vertically and equidistantly sleeved on the outer wall of the second filter screen cylinder (5), and the second annular scrapers (2011) are fixedly connected with the second connecting sliding rods (2010).

5. The debris-filtered excavation-drainage assembly of claim 2, wherein, The rotating assembly comprises a support frame (202) fixedly connected to the inner wall of the fixed cylinder (1), the support frame (202) is located at the port of the water delivery pipe (3), the bottom end of the support frame (202) is rotatably connected with a turbofan (204), the bottom end of the turbofan (204) is fixedly connected with a connecting rotating rod (205), and the turbofan (204) and the connecting rotating rod (205) are located in the inner cavity of the lifting sliding cylinder (207). The connecting rotating rod (205) is provided with a moving assembly.

6. The debris-filtered excavation-drainage assembly of claim 5, wherein, The moving assembly is a sliding sleeve frame (2012) sleeved on the outer wall of the connecting rotating rod (205), the sliding sleeve frame (2012) is located in the inside of the lifting sliding cylinder (207), and the sliding sleeve frame (2012) is fixedly connected with the lifting sliding cylinder (207). The sliding sleeve frame (2012) is provided with a guide assembly.

7. The debris-filtered excavation-drainage assembly of claim 6, wherein, The guiding assembly comprises a plurality of guiding blocks (206) fixedly connected on the inner wall of the sliding sleeve frame (2012) at equal intervals in the circumferential direction, the outer wall of each of the plurality of guiding blocks (206) is hemispherical, and each of the plurality of guiding blocks (206) penetrates into the inside of the connecting rotating rod (205), and the connecting rotating rod (205) is provided with a guiding groove (203) for the sliding of the guiding block (206) at the position where the connecting rotating rod (205) is connected with the plurality of guiding blocks (206).

8. The debris-filtered excavation-drainage assembly of claim 2, wherein, The reset assembly is a spring (201) sleeved on the outer wall of the lifting sliding cylinder (207), one end of the spring (201) is in contact with the outer wall of the lifting pressure plate (2013), and the other end of the spring (201) is in contact with the inner wall of the fixed cylinder (1).

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