Foundation pit dewatering device

Abstract

The utility model relates to the technical field of foundation pit dewatering, and discloses a foundation pit dewatering device which comprises a water collecting well arranged at the bottom of a foundation pit body. The dewatering mechanism is arranged in the water collecting well and is matched with the filter material layer laid in the water collecting well; the dewatering mechanism is arranged, a first filter cartridge and a second filter cartridge are matched to filter sludge in a water collecting well, the dewatering effect of the device is improved, a mounting block drives a cleaning rod to clean sludge and impurities on the outer wall of the second filter cartridge and the inner wall of the first filter cartridge, water flow can be rapidly discharged, and the dewatering effect of the device is improved. A cleaning plate and a compression spring are matched to clean impurities blocked on the first filter cartridge, a motor drives two gears to be matched to enable a cleaning rod to rotate to clean the filter cartridge, and sludge and impurities blocked on the filter cartridge can be cleaned; the problem that according to an existing foundation pit dewatering device, sludge on a filter cartridge is inconvenient to clean is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit dewatering, and in particular relates to a foundation pit dewatering device. Background Art

[0002] The foundation pit is a pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, an excavation plan should be formulated based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage should be done well. If the excavation is not deep, the slope can be used to stabilize the soil slope. The slope size is determined according to relevant construction regulations. When excavating the foundation pit, due to the deep excavation depth of the foundation pit, when the excavation depth of the foundation pit is greater than the groundwater level, it is necessary to use a precipitation device to discharge the water flow in the foundation pit to meet the needs of later use.

[0003] During the foundation pit dewatering process, the methods of foundation pit drainage mainly include open ditch drainage and well point dewatering. Compared with open ditch drainage, well point dewatering has the advantages of convenient construction, no need for large-scale excavation of the bottom of the foundation pit, and the dewatering process can be achieved through multi-point distributed dewatering well points. It is widely used in deep foundation pit excavation. For example, a Chinese utility model with publication number CN220598554U discloses a foundation pit dewatering and anti-blocking device, which uses a movable plate inside the foundation pit body to intercept the garbage inside the foundation pit to the top of the movable plate after filtering through a filter screen, and then drives the adjusting block to move under the coordinated use of a first motor, a bidirectional screw, a rotating screw sleeve, an adjusting rod and a flip rod, and the adjusting block drives the movement of the movable plate during the movement process, thereby lifting out the garbage inside the foundation pit body and improving the cleaning effect of the garbage inside the foundation pit; however, when the device is used in well point dewatering, there are still problems such as: no corresponding cleaning component is set, and when the water flow in the foundation pit is drained, the sludge is easily clogged in the filter cartridge, which is inconvenient to clean the sludge on the filter cartridge, seriously affecting the dewatering effect of the device;

[0004] Therefore, the utility model designs a foundation pit dewatering device to solve the problems existing in the above-mentioned background technology. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a foundation pit dewatering device, which has the advantages of quickly cleaning the sludge and impurities blocked on the filter cartridge and improving the dewatering effect, thereby solving the problem of the inconvenience of cleaning the sludge on the filter cartridge in the existing foundation pit dewatering device.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of quickly cleaning the sludge and impurities blocked on the filter cylinder and improving the dewatering effect of the foundation pit, the utility model provides the following technical solutions:

[0009] A foundation pit dewatering device, comprising a water collection well, arranged at the bottom of the foundation pit body; a dewatering mechanism, arranged in the water collection well, adapted to the filter material layer laid in the water collection well, comprising a water pumping pipe, arranged at the upper end of a first filter cartridge, the lower end of which extends into a second filter cartridge and is connected to the upper port of the water collection well through a mounting assembly; a first filter cartridge, arranged inside the filter material layer; a second filter cartridge, arranged inside the first filter cartridge, and a cleaning assembly is arranged between the first filter cartridge and the second filter cartridge;

[0010] Based on the above characteristics: the first filter cartridge is used to perform secondary filtration on the groundwater, and the groundwater after the secondary filtration is filtered again when passing through the second filter cartridge, and finally enters the pumping pipe and is pumped out; at the same time, during the filtration process, the cleaning component is used to clean the sludge accumulated between the first filter cartridge and the second filter cartridge to ensure the filtering effect of the first filter cartridge and the second filter cartridge.

[0011] As a preferred solution of the foundation pit dewatering device described in the utility model:

[0012] The cleaning assembly includes a mounting block, which is rotatably arranged in the first filter cartridge and rotatably connected to the water pump, and a plurality of evenly distributed cleaning rods are arranged on the mounting block; two mutually meshing gears are respectively arranged on the mounting block and the motor; the motor is arranged in the first filter cartridge;

[0013] Based on the above characteristics: the cleaning rod mounting block and the cleaning rod are driven by a motor to rotate, so as to clean and scrape away the sludge accumulated on the first filter cartridge and the second filter cartridge, thereby preventing the sludge from clogging the filter holes on the first filter cartridge and the second filter cartridge, and quickly cleaning the sludge and impurities clogging the filter cartridges, thereby improving the precipitation effect of the device.

[0014] As a preferred solution of the foundation pit dewatering device described in the utility model:

[0015] A cleaning plate is movably provided on the outside of the cleaning rod, and the cleaning plate is movably connected to the cleaning rod through a compression spring;

[0016] Based on the above characteristics: the motor drives one gear to rotate, and the other gear is meshed with one of the gears to drive the cleaning rod on the outer wall of the mounting block to rotate to clean the sludge on the first filter cartridge and the second filter cartridge, and the cleaning plate cooperates with the compression spring to clean the sludge on the first filter cartridge.

[0017] As a preferred solution of the foundation pit dewatering device described in the utility model:

[0018] The cleaning plate is provided with a plurality of rubber protrusions on the outside thereof, and the rubber protrusions are adapted to the filter holes provided on the first filter cylinder;

[0019] Based on the above characteristics: the filter holes on the first filter cartridge are cleaned by utilizing the rubber protrusions, the sludge and impurities clogged on the filter cartridge are quickly cleaned, and the precipitation effect of the device is improved.

[0020] As a preferred solution of the foundation pit dewatering device described in the utility model:

[0021] The mounting assembly includes a mounting plate, which is arranged on the upper side of the bottom of the foundation pit body, and a clamping plate is arranged at the bottom end of the mounting plate, one end of the clamping plate is clamped into the water collection well; a fixing nut is adapted to the clamping plate; and a sealing ring is also arranged on the outer side of the clamping plate;

[0022] Based on the above features: the mounting plate is installed on the foundation pit body, the clamping plate and the sealing ring are matched and clamped in the water collection well, and the fixing nut is rotated to connect with the foundation pit body thread to fix the mounting plate, the water collection well can be quickly sealed and the mounting plate can be quickly fixed.

[0023] As a preferred solution of the foundation pit dewatering device described in the utility model:

[0024] The filter material layer is a sand and gravel layer.

[0025] Based on the above characteristics: the filter material layer is used to perform initial filtration on the water entering the water collection well to remove the silt.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the utility model provides a foundation pit dewatering device, which has the following beneficial effects:

[0028] 1. By setting up a precipitation mechanism, when the foundation pit is precipitated, the first filter cartridge cooperates with the second filter cartridge to filter the sludge in the water collection well, thereby improving the precipitation effect of the device;

[0029] 2. By setting a cleaning assembly, the mounting block drives the cleaning rod to clean the sludge and impurities on the outer wall of the second filter cartridge and the inner wall of the first filter cartridge, so as to clean the sludge in the filter holes and gaps and realize the rapid discharge of water flow; the cleaning plate cooperates with the compression spring to clean the impurities blocked in the filter holes on the first filter cartridge, thereby improving the precipitation effect of the device; the motor drives the two gears to cooperate to make the cleaning rod rotate to clean the filter cartridge, so as to quickly clean the sludge and impurities blocked on the filter cartridge and improve the precipitation effect of the device;

[0030] 3. By setting up the installation components, when the water collection well is sealed, the installation plate is fixed on the main body of the foundation pit. The installation plate is clamped in the water collection well by cooperating with the clamping plate, so it can be quickly installed and prevent leakage. The clamping plate is then clamped in the water collection well by cooperating with the sealing ring to improve the sealing of the device. The installation plate is fixed on the main body of the foundation pit by cooperating with the fixing nut, so the water collection well can be quickly sealed and the installation plate can be quickly fixed, thereby realizing the rapid installation and fixation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the foundation pit dewatering device of the utility model;

[0032] Figure 2 It is a structural schematic diagram of the installation assembly of the utility model;

[0033] Figure 3 It is a cross-sectional view of the precipitation mechanism of the utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the second filter cartridge of the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the first filter cartridge of the utility model;

[0036] Figure 6 It is a partial enlarged view of the precipitation mechanism A of the utility model.

[0037] In the figure: 1. foundation pit body; 2. water collection well; 3. precipitation mechanism; 301. filter material layer; 302. suction pipe; 303. first filter cartridge; 304. second filter cartridge; 305. mounting block; 306. cleaning rod; 307. cleaning plate; 3071. rubber protrusion; 308. compression spring; 309. gear; 310. motor; 311. mounting assembly; 3111. mounting plate; 3112. clamping plate; 3113. sealing ring; 3114. fixing nut. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example 1: Please refer to Figure 1-6 , the utility model provides a technical solution:

[0040] A foundation pit dewatering device is arranged in a foundation pit body 1, comprising a water collection well 2 and a dewatering mechanism 3; wherein the water collection well 2 is arranged at the bottom of the foundation pit body 1; the dewatering mechanism 3 is arranged in the water collection well 2, and is used to efficiently discharge the water in the water collection well 2 and lower the water level at the bottom of the foundation pit body 1, and the dewatering mechanism 3 is also used in conjunction with a filter material layer 301 laid on the bottom and side walls of the water collection well 2, and the filter material layer 301 is used to perform initial filtration on the water entering the water collection well 2 to filter out sediment.

[0041] As a preferred embodiment, Figure 2 , Figure 3 Figure 4 and Figure 5 As shown, the precipitation mechanism 3 includes a pumping pipe 302, a first filter cartridge 303 and a second filter cartridge 304; wherein the pumping pipe 302 is arranged at the upper end outlet of the first filter cartridge 303, and the lower end extends into the second filter cartridge 304, and is connected to the upper port of the water collection well 2 through the mounting assembly 311; the first filter cartridge 303 is fixedly arranged on the inner side of the filter material layer 301 in the water collection well 2; the second filter cartridge 304 is arranged on the inner side of the first filter cartridge 303, and a cleaning assembly is arranged between the first filter cartridge 303 and the second filter cartridge 304; specifically, when in use, the first filter cartridge 303 is used to perform secondary filtration on groundwater, and the groundwater after the secondary filtration is filtered again when passing through the second filter cartridge 304, and finally enters the pumping pipe 302 and is pumped out; at the same time, during the filtering process, the cleaning assembly is used to clean the silt accumulated between the first filter cartridge 303 and the second filter cartridge 304 to ensure the filtering effect of the first filter cartridge 303 and the second filter cartridge 304.

[0042] As a preferred embodiment, Figure 2 and Figure 3 As shown, the filter material layer 301 preferably uses sand and gravel without soil or with a small amount of soil to ensure its primary filtering effect on the surrounding groundwater during use.

[0043] As a preferred embodiment, Figure 2 and Figure 3 As shown, the filter hole diameter of the first filter cartridge 303 is larger than the filter hole diameter of the second filter cartridge 304; when in use, it can effectively ensure the layered filtration of groundwater.

[0044] Example 2: Figure 2 , Figure 3 Figure 4 and Figure 5As shown, the cleaning assembly includes a mounting block 305, two gears 309, and a motor 310; wherein the mounting block 305 is rotatably mounted in the first filter cartridge 303, rotatably connected to the water suction pipe 302, and a plurality of evenly distributed cleaning rods 306 are fixedly connected to the outer wall of the mounting block 305; the two gears 309 are respectively arranged on the mounting block 305 and the motor 310, and mesh with each other; the motor 310 is fixedly arranged in the first filter cartridge 303, and is fixedly connected to any gear 309; specifically, when in use, the cleaning rod mounting block 305 and the cleaning rod 306 are driven to rotate by the motor 310, and the sludge accumulated on the first filter cartridge 303 and the second filter cartridge 304 is cleaned and scraped off, so as to prevent the sludge from clogging the filter holes on the first filter cartridge 303 and the second filter cartridge 304, and quickly clean the sludge and impurities clogged on the filter cartridges, thereby improving the precipitation effect of the device.

[0045] As a preferred embodiment, Figure 6 As shown, a cleaning plate 307 is movably provided on the outer side of the cleaning rod 306, and the cleaning plate 307 is movably connected to the cleaning rod 306 through a compression spring 308, and a plurality of rubber protrusions 3071 are provided on the outer side of the cleaning plate 307 to cooperate with the filter holes opened on the first filter cylinder 303; specifically, when in use, the motor 310 drives a gear 309 to rotate, and another gear 309 is meshed and connected with one of the gears 309 to drive the cleaning rod 306 on the outer wall of the mounting block 305 to rotate to clean the sludge on the first filter cylinder 303 and the second filter cylinder 304, the cleaning plate 307 cooperates with the compression spring 308 to clean the sludge on the first filter cylinder 303, and the rubber protrusions 3071 are used to clean the filter holes on the first filter cylinder 303, and the sludge and impurities blocked on the filter cylinder are quickly cleaned, thereby improving the precipitation effect of the device.

[0046] It is worth noting that the motor 310 and the gear 309 described in this embodiment are both existing technologies in the field. When in use, the model and power supply method can be selected according to specific needs.

[0047] Example 3: Figure 2As shown, the mounting assembly 311 includes a mounting plate 3111 arranged at the top of the foundation pit main body 1, a clamping plate 3112 is fixedly connected to the bottom end of the mounting plate 3111, one end of the clamping plate 3112 is clamped to the inner wall of the water collecting well 2, a sealing ring 3113 is fixedly connected to the outer wall of the clamping plate 3112, and a fixing nut 3114 is threadedly connected to the four corners of the top of the mounting plate 3111, one end of the fixing nut 3114 passes through the mounting plate 3111 and is threadedly connected to the foundation pit main body 1, the mounting plate 3111 is installed on the foundation pit main body 1, the clamping plate 3112 and the sealing ring 3113 are matched and clamped in the water collecting well 2, the fixing nut 3114 is rotated to be threadedly connected to the foundation pit main body 1 to fix the mounting plate 3111, the water collecting well 2 can be quickly sealed, and the mounting plate 3111 can be quickly fixed.

[0048] When the foundation pit dewatering device of the utility model is used:

[0049] The water flow in the water collection well 2 is extracted through the pumping pipe 302 and the first filter cartridge 303 and the second filter cartridge 304. The motor 310 is started by the controller to drive another gear 309 to engage with one of the gears 309, and drive the cleaning rod 306 on the outer wall of the mounting block 305 to rotate to clean the sludge on the first filter cartridge 303 and the second filter cartridge 304. The cleaning plate 307 cooperates with the compression spring 308 to clean the sludge in the filter holes on the first filter cartridge 303. The mounting plate 3111 is installed on the foundation pit main body 1 through the clamping plate 3112 and the sealing ring 3113. The fixing nut 3114 is rotated to be threadedly connected with the foundation pit main body 1 to fix the mounting plate 3111.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit dewatering device, characterized in that: include A water collection well (2) is arranged at the bottom of the foundation pit body (1); The precipitation mechanism (3) is arranged in the water collection well (2) and is adapted to the filter material layer (301) laid in the water collection well (2), and comprises A water extraction pipe (302) is arranged at the upper end of the first filter cartridge (303), the lower end of which extends into the second filter cartridge (304) and is connected to the upper port of the water collection well (2) through a mounting assembly (311); A first filter cartridge (303) is arranged inside the filter material layer (301); The second filter cartridge (304) is arranged inside the first filter cartridge (303), and a cleaning component is arranged between the first filter cartridge (303) and the second filter cartridge (304).

2. A foundation pit dewatering device according to claim 1, characterized in that: The cleaning component includes A mounting block (305) is rotatably disposed in the first filter cartridge (303) and is rotatably connected to the water extraction pipe (302), and a plurality of evenly distributed cleaning rods (306) are disposed on the mounting block (305); Two mutually meshing gears (309) are respectively arranged on the mounting block (305) and the motor (310); The motor (310) is arranged in the first filter cartridge (303).

3. A foundation pit dewatering device as claimed in claim 2, characterized in that: A cleaning plate (307) is also movably provided on the outer side of the cleaning rod (306), and the cleaning plate (307) is movably connected to the cleaning rod (306) via a compression spring (308).

4. A foundation pit dewatering device as claimed in claim 3, characterized in that: A plurality of rubber protrusions (3071) are arranged on the outside of the cleaning plate (307), and the rubber protrusions (3071) are adapted to the filter holes provided on the first filter cartridge (303).

5. A foundation pit dewatering device according to claim 1, characterized in that: The installation assembly (311) includes A mounting plate (3111) is arranged on the upper side of the bottom of the foundation pit body (1), and a clamping plate (3112) is arranged at the bottom end of the mounting plate (3111), and one end of the clamping plate (3112) is clamped into the water collection well (2); The fixing nut (3114) is matched with the clamping plate (3112).

6. A foundation pit dewatering device as claimed in claim 5, characterized in that: A sealing ring (3113) is also provided on the outer side of the clamping plate (3112).

7. A foundation pit dewatering device as claimed in claim 5, characterized in that: The filter material layer (301) is a sand and gravel layer.

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