A foundation pit dewatering device and construction method

Abstract

The present invention relates to the technical field of water conservancy construction, and discloses a foundation pit dewatering device and a construction method. The main body has a storage space inside. It also includes a sliding mechanism installed inside the storage space for sliding inside the storage space of the main body after the surface of the main body is blocked by soil. In the present invention, when multiple hollow tubes slide outward on the surface of the filter tube, while pushing the filter plate outward, they will also generate an outward supporting force on the gravel inside the channel. When multiple filter plates support outward, it can reduce the density change of the gravel caused by the scouring of the water flow when the water flow carries soil, resulting in the blockage between the gravel by the soil and affecting the flow rate of the water flow when it is pumped, thereby improving the dewatering rate of the dewatering.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy construction, and specifically relates to a foundation pit dewatering device and a construction method thereof. Background Technique

[0002] A foundation pit refers to the underground space excavated for the construction of building foundations and basements. A foundation pit belongs to a temporary project, and its function is to provide a space so that the masonry operation of the foundation can be carried out at the designated position according to the design;

[0003] Generally, when dewatering a foundation pit, a long passage needs to be dug around the foundation pit, and then the well pipe installed with a filter pipe is placed into the passage, and then the passage is filled with gravel around the pipe. After that, a water pump is installed inside the well pipe for dewatering. Since the soil around the passage is relatively moist, and the passage and the soil are mainly supported by gravel. When the pump extracts water, it is easy for the flowing water to drive the soil to squeeze the gravel, resulting in a decrease in the density between the gravels. At the same time, the soil will also block the gaps between the gravels as the water flows, affecting the extraction speed of the water pump for external water sources and the dewatering efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a foundation pit dewatering device and a construction method thereof to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is a foundation pit dewatering device, a main body, and a storage space is provided inside the main body. It further includes:

[0007] A sliding mechanism, which is installed inside the storage space and is used to slide inside the storage space of the main body after the surface of the main body is blocked by soil;

[0008] A pushing mechanism, which is installed on the top of the sliding mechanism and is used to push the soil outside the main body by the pushing mechanism when the sliding mechanism slides;

[0009] A rotating mechanism, which is rotatably installed inside the storage space and is used to rotate inside the storage space when the sliding mechanism rises;

[0010] Among them, after the main body is blocked by soil, the sliding mechanism can drive the rotating mechanism to rotate inside the storage space of the main body under the adsorption force and slide to realize the pushing of the soil outside the main body by the pushing mechanism when the sliding mechanism slides.

[0011] Further, a filter pipe is threadedly connected to the bottom of the main body. The main body includes:

[0012] Filter component, which is installed inside the filter pipe through a sliding member and is used for filtering water sources.

[0013] Precipitation component, which is slidably connected inside the filter component;

[0014] Among them, the precipitation component extracts external water through the filter component to achieve the flow of external water sources.

[0015] Furthermore, a sliding ring and a sliding disk are arranged inside the sliding mechanism. The sliding mechanism includes:

[0016] Limit component, which slides on the outer surface of the T-shaped plate through a lifting member; and

[0017] Rotating component, which is arranged on the top of the limit component.

[0018] Furthermore, the pushing mechanism includes a hollow tube rotatably connected inside each rotating component. The hollow tube slidably penetrates through the outer wall of the filter pipe. The pushing mechanism includes:

[0019] Pushing component, which is slidably arranged on the outer surface of the hollow tube; and

[0020] Cleaning component, which is rotatably arranged on the side wall of the pushing component through a rotating member;

[0021] Among them, the side wall of the pushing component can be slidably cleaned by the sliding of the cleaning component.

[0022] Furthermore, the rotating mechanism includes a plurality of fixing brackets fixedly connected to the top of the sliding disk. The rotating mechanism includes:

[0023] Connecting component, which is fixedly arranged on the top of the sliding disk; and

[0024] Transmission component, which is installed on the top of the connecting component through a support member.

[0025] Furthermore, the filter component includes an inner plate fixedly connected inside the filter pipe. A fixing disk is arranged outside the inner plate, and the fixing disk is fixedly connected to the outer surface of the filter pipe. A T-shaped plate is arranged at the bottom of the fixing disk;

[0026] Sliding member, which includes a T-shaped plate. The top of the T-shaped plate slidably penetrates to the bottom inner wall of the filter pipe. A plurality of holes are formed in the top of the inner plate. A limit spring is fixedly connected to the bottom inner wall of the T-shaped plate, and the top of the limit spring is fixedly connected to the bottom outer wall of the filter pipe. A plurality of limit springs two are rotatably connected to the top of the fixing disk;

[0027] Precipitation component, the precipitation component includes a water pump arranged on the top of the inner plate. The output end of the water pump is fixedly connected with a water outlet pipe. A vacuum plug is slidably connected to the outer surface of the water outlet pipe, and the top of the main body can be sealed through the vacuum plug.

[0028] Furthermore, a lifting member, the lifting member includes a sliding ring slidably connected to the outer surface of the T-shaped plate. A plurality of rotating plates are rotatably connected to the outer surface of the sliding ring, and the plurality of rotating plates are circumferentially arranged around the T-shaped plate;

[0029] A limiting component, the limiting component includes a sliding disk rotatably connected to one end of the plurality of rotating plates away from the sliding ring. A plurality of reset springs are fixedly connected to the bottom of the sliding disk, and the bottoms of the plurality of reset springs are fixedly connected to the bottom inner wall of the filter pipe;

[0030] Among them, the sliding ring is slidably connected to the outer surface of the T-shaped plate;

[0031] A rotating component, the rotating component includes a plurality of second rotating plates rotatably connected to the top outer wall of the sliding disk. The plurality of second rotating plates are symmetrically distributed, and several groups of second rotating plates are circumferentially arranged around the T-shaped plate.

[0032] Furthermore, a pushing component, the pushing component includes a filter plate slidably arranged on the outer surface of the hollow pipe. A rectangular groove is formed on the side wall of the filter plate. The hollow pipe is slidably connected to the inside of the rectangular groove, and a plurality of auxiliary teeth are fixedly connected to the inner wall of the rectangular groove;

[0033] Among them, the bottom of the filter plate is rotatably connected to the top of the limiting spring II

[0034] A rotating member, the rotating member includes a movable plate rotatably connected to the side wall of the filter plate. One end of the plurality of movable plates away from the filter plate is rotatably connected to a cleaning ring;

[0035] A cleaning component, the cleaning component includes a plurality of telescopic spring rods fixedly connected to the top of the cleaning ring. The tops of the plurality of telescopic spring rods are in contact with the bottom outer wall of the main body. A plurality of arc-shaped cleaning plates are slidably connected to the inside of the cleaning ring. An auxiliary spring is fixedly connected to the side wall of the arc-shaped cleaning plate, and one end of the auxiliary spring away from the arc-shaped cleaning plate is fixedly connected to the inner wall of the cleaning ring;

[0036] Among them, when the filter plate is pushed by the hollow pipe, the cleaning ring can slide on the side wall of the filter pipe to realize the cleaning of the soil.

[0037] Furthermore, a connecting component, the connecting component includes a central ring fixedly connected between a plurality of fixing frames. A plug rod is fixedly connected to the inner wall of the central ring. A central shaft is slidably connected to the inside of the central ring. A thread groove is formed on the outer surface of the central shaft, and the plug rod is slidably connected to the inside of the thread groove;

[0038] Wherein, the top of the central axis is rotatably connected to the bottom outer wall of the inner plate; and

[0039] A support member, which includes a cross-shaped toothed plate fixedly connected to the outer surface of the central axis. A second fixing frame is provided at the bottom of the cross-shaped toothed plate. The middle part of the second fixing frame is rotatably connected to the bottom of the central axis, and the top of the second fixing frame is fixedly connected to the bottom outer wall of the inner plate;

[0040] A transmission assembly, which includes a number of bevel gears meshed and connected to the outer surface of the cross-shaped toothed plate. One end of the bevel gear away from the cross-shaped toothed plate is fixedly connected with a gear rod. The end of the gear rod away from the bevel gear penetrates through the outer wall of the second fixing frame and extends into the interior of the hollow tube. A tension spring is fixedly connected to the side wall of the bevel gear;

[0041] Wherein, the rotation of the cross-shaped toothed plate can drive the bevel gear and the gear rod to rotate while sliding inside the hollow tube.

[0042] Furthermore, a usage method of a foundation pit dewatering device, a foundation pit dewatering device, the method includes the following steps:

[0043] S1: Excavate a channel: First, dig a cylindrical channel around the foundation pit as required. Then connect the filtering component to the main body. Subsequently, place the main body into the channel and fill the space between the main body and the channel with gravel;

[0044] S2: Place and seal: Then place the water pump with a water outlet pipe into the main body to make it contact with the inner plate. Subsequently, install a vacuum plug on the top of the main body to seal it;

[0045] S3: Extract precipitation: After completion, start the water pump. When the water pump works, it will extract the water in the soil through the filter pipe and discharge it out through the water outlet pipe to achieve the purpose of dewatering.

[0046] The present invention has the following beneficial effects:

[0047] 1. In the present invention, when the water pump pumps the water in the soil around the channel, the water flow in the soil will be pumped by the water pump through the filter pipe and discharged outward. When the water flows under pumping, it will flow through the filter plate. When the water flows further, it will carry soil and flow through the filter plate. When the surface of the filter plate is blocked by the soil carried by the water flow, a closed space will be formed inside the main body and the filter pipe. Then, when the water pump continues to pump, the negative pressure generated during the extraction of the rotating plate will transmit the adsorption force to the bottom of the inner plate through the multiple holes on the inner plate, and under the adsorption of the suction force, the sliding disk will slide upward. When the sliding disk slides upward, it will push the hollow pipe outward through multiple rotating plates II. When multiple hollow pipes slide outward on the surface of the filter pipe, while pushing the filter plate outward, they will also generate an outward supporting force on the stones inside the channel. When multiple filter plates support outward, it can reduce the density of the stones due to the scouring of the water flow when the water flow carries soil, resulting in blockage between the soil and the stones and affecting the flow rate of the water flow being pumped, thereby improving the precipitation rate of the precipitation.

[0048] 2. In the present invention, when the sliding disk slides upward under the adsorption force, the upward sliding of the sliding disk will drive the fixed frame and the central ring to slide synchronously on the surface of the central axis. When the central ring slides upward, it will slide upward in the thread groove on the outer surface of the central axis through the insertion rod inside and drive the central axis to rotate during the sliding. When the central axis rotates, it will drive the cross tooth plate to rotate synchronously. When the cross tooth plate rotates, it will push the bevel gear and the gear rod to slide outward on the fixed frame II. When the gear rod slides outward under the rotation of the cross tooth plate, the gear rod will also rotate while sliding through the meshing of the bevel gear and the cross tooth plate during the rotation of the cross tooth plate. When the gear rod slides, it will slide into the interior of the rectangular groove through the fixed frame II and the hollow pipe and mesh with several auxiliary teeth inside the rectangular groove. Subsequently, after the gear rod meshes with the auxiliary teeth, it will slide backward and rotate on the surface of the auxiliary teeth. When the gear rod rotates, it will drive the filter plate to slide upward on the surface of the hollow pipe through the auxiliary teeth. Then, when the outer top end of the cross tooth plate turns past the side wall of the bevel gear, the bevel gear will be reset under the action of the tension spring and drive the gear rod to disengage from the auxiliary teeth. At this time, the filter plate will be pulled downward by the limit spring II. When the filter plate slides up and down, it will cause friction between the surface of the filter plate and the stones. By the friction between the filter plate and the stones, the blocked soil on the surface of the filter plate can be removed, prompting the soil to fall off from the surface of the filter plate, thereby restoring the water passing capacity of the filter plate, reducing the influence of the blockage of the soil on the filter plate on the water flow during the reset of the filter plate, and further reducing the influence of the long-term blockage of the filter plate by the soil on the water flow and improving the precipitation effect.

[0049] 3. In the present invention, when the filter plate is pushed outwards and reset by the hollow tube, it will slide back and forth. When the filter plate slides upwards, it will drive the cleaning ring to slide upwards under the reset of the movable plate and the telescopic spring rod. At the same time, when the filter plate slides outwards, the filter plate inside the cleaning ring will slide outwards under the elastic force of the auxiliary spring and contact the side wall of the filter plate. Subsequently, when the cleaning ring drives the arc-shaped cleaning plate extending outwards to slide upwards, it will scrape between the side wall of the filter plate and the side wall of the filter tube. Then, when the filter plate is reset, it will compress the arc-shaped cleaning plate and make it slide into the cleaning ring. Subsequently, when the movable plate is reset, it will push the cleaning ring to slide downwards through the movable plate. When the cleaning ring and the arc-shaped cleaning plate slide back and forth, they will scrape the soil on the movable plate and the side wall of the filter tube, reducing the situation where soil enters the inside of the filter tube through the gap between the filter plate and the filter tube with the water flow after the filter plate slides outwards, resulting in soil adhering to the surface of the filter tube. It also reduces the situation where the surface of the filter tube is blocked due to soil adhesion after the filter plate slides outwards. By sliding and cleaning the side walls of the filter tube and the filter plate, it can further enhance the cleaning of soil adhesion and at the same time enhance the outward flow rate of the water flow during precipitation, thereby further enhancing the precipitation efficiency.

[0050] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0053] Figure 2 It is a schematic diagram of the overall partial sectional structure of the present invention;

[0054] Figure 3 For the present invention Figure 2 The enlarged view at A in;

[0055] Figure 4 It is a schematic diagram of the main structure of the present invention;

[0056] Figure 5 It is a schematic diagram of the sliding mechanism of the present invention;

[0057] Figure 6 It is a schematic diagram of the pushing mechanism of the present invention;

[0058] Figure 7Schematic diagram of the rotating mechanism of the present invention;

[0059] Figure 8 Of the present invention Figure 9 Enlarged view at position B in;

[0060] Figure 9 Schematic diagram of the transmission component of the present invention;

[0061] Figure 10 Flow chart of the construction method of the present invention.

[0062] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0063] In the figure: 1, main body; 11, filtration component; 101, filtration pipe; 111, inner plate; 112, fixed disk; 113, T-shaped plate; 12, precipitation component; 121, water pump; 122, water outlet pipe; 123, vacuum plug; 2, sliding mechanism; 21, limiting component; 211, sliding ring; 212, rotating plate; 213, sliding disk; 22, rotating component; 221, rotating plate two; 3, pushing mechanism; 31, pushing component; 311, hollow pipe; 312, filter plate; 313, rectangular groove; 32, cleaning component; 321, movable plate; 322, cleaning ring; 323, telescopic spring rod; 324, arc-shaped cleaning plate; 4, rotating mechanism; 41, connection component; 411, fixed frame; 412, central ring; 413, central shaft; 42, transmission component; 421, cross-shaped tooth plate; 422, fixed frame two; 423, bevel gear; 424, gear rod. Detailed implementation manners

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0065] Please refer to Figure 1 - Figure 9 As shown, the present invention is a foundation pit dewatering device, including a main body 1. There is a storage space inside the main body 1, and further includes;

[0066] A sliding mechanism 2, which is installed inside the storage space and is used to slide inside the storage space of the main body 1 after the surface of the main body 1 is blocked by soil;

[0067] A pushing mechanism 3, which is installed on the top of the sliding mechanism 2 and is used to push the soil outside the main body 1 when the sliding mechanism 2 slides;

[0068] The rotating mechanism 4 is rotatably installed inside the storage space and is used to rotate inside the storage space when the sliding mechanism 2 ascends.

[0069] Among them, after the main body 1 is blocked by soil, the sliding mechanism 2 can drive the rotating mechanism 4 to rotate inside the storage space of the main body 1 under the adsorption force and slide to enable the pushing mechanism 3 to push the soil outside the main body 1 when sliding. When the pushing mechanism 3 pushes the external soil, an outward pushing force can be generated between the main body 1 and the stones.

[0070] A filter pipe 101 is threadedly connected to the bottom of the main body 1. The main body 1 includes:

[0071] A filtering component 11, which is installed inside the filter pipe 101 through a sliding member and is used for filtering water sources.

[0072] A precipitation component 12, which is slidably connected inside the filtering component 11.

[0073] Among them, the precipitation component 12 extracts external water through the filtering component 11 to realize the flow of external water sources, and achieves the purpose of precipitation by extracting external water sources.

[0074] A sliding ring 211 and a sliding disk 213 are arranged inside the sliding mechanism 2. The sliding mechanism 2 includes:

[0075] A limiting component 21, which slides on the outer surface of the T-shaped plate 113 through a lifting member; and

[0076] A rotating component 22, which is arranged on the top of the limiting component 21. When the filter pipe 101 is blocked, the limiting component 21 and the rotating component 22 will slide upward inside the filter pipe 101 under the strong negative pressure extraction of the water pump 121.

[0077] The pushing mechanism 3 includes a hollow pipe 311 rotatably connected inside each rotating component 22. The hollow pipe 311 slidably penetrates through the outer wall of the filter pipe 101. The pushing mechanism 3 includes:

[0078] A pushing component 31, which is slidably arranged on the outer surface of the hollow pipe 311; and

[0079] A cleaning component 32, which is rotatably arranged on the side wall of the pushing component 31 through a rotating member;

[0080] Among them, by the sliding of the cleaning component 32, the side wall of the pushing component 31 can be slidably cleaned. By cleaning the side wall of the pushing component 31, the situation that soil adheres to the side wall of the pushing component due to the flow of water carrying soil during the sliding of the pushing component can be reduced.

[0081] The rotating mechanism 4 includes several fixing brackets 411 fixedly connected to the top of the sliding disk 213. The rotating mechanism 4 includes:

[0082] The connecting component 41 is fixedly arranged on the top of the sliding disk 213; and

[0083] The transmission component 42 is installed on the top of the connecting component 41 through a support. When the transmission component 42 is restricted by the limiting component 21, it will drive the transmission component 42 to rotate during sliding.

[0084] The filtering component 11 includes an inner plate 111 fixedly connected inside the filtering tube 101. There is a fixing disk 112 outside the inner plate 111. The fixing disk 112 is fixedly connected to the outer surface of the filtering tube 101. There is a T-shaped plate 113 at the bottom of the fixing disk 112;

[0085] The sliding part includes the T-shaped plate 113. The top of the T-shaped plate 113 slides through to the bottom inner wall of the filtering tube 101. There are several holes opened at the top of the inner plate 111. The bottom inner wall of the T-shaped plate 113 is fixedly connected with a limiting spring. The top of the limiting spring is fixedly connected to the bottom outer wall of the filtering tube 101. There are several second limiting springs rotatably connected to the top of the fixing disk 112;

[0086] The precipitation component 12 includes a water pump 121 arranged on the top of the inner plate 111. The output end of the water pump 121 is fixedly connected with a water outlet pipe 122. A vacuum plug 123 is slidably connected to the outer surface of the water outlet pipe 122. The top of the main body 1 can be blocked by the vacuum plug 123. When the water pump 121 pumps the water in the soil around the channel, the water in the soil will be pumped by the water pump 121 through the filtering tube 101 and discharged outwards.

[0087] The lifting part includes a sliding ring 211 slidably connected to the outer surface of the T-shaped plate 113, and several rotating plates 212 on the outer surface of the sliding ring 211. The several rotating plates 212 are circumferentially arranged around the T-shaped plate 113;

[0088] The limiting component 21 includes a sliding disk 213 rotatably connected to one end of several rotating plates 212 away from the sliding ring 211. The bottom of the sliding disk 213 is fixedly connected with several reset springs. The bottoms of the several reset springs are fixedly connected to the bottom inner wall of the filtering tube 101;

[0089] Among them, the sliding ring 211 is slidably connected to the outer surface of the T-shaped plate 113;

[0090] Rotating assembly 22, the rotating assembly 22 includes a plurality of second rotating plates 221 rotatably connected to the top outer wall of the sliding plate 213. The plurality of second rotating plates 221 are symmetrically distributed, and the plurality of groups of second rotating plates 221 are circumferentially arrayed with the T-shaped plate 113 as the center. The negative pressure generated when the rotating plate 212 is extracted will transfer the adsorption force to the bottom of the inner plate 111 through a plurality of holes on the inner plate 111 and cause the sliding plate 213 to slide upward under the adsorption of the suction force. When the sliding plate 213 slides upward, it will push the hollow tube 311 to slide outward through a plurality of second rotating plates 221.

[0091] Pushing assembly 31, the pushing assembly 31 includes a filter plate 312 slidably disposed on the outer surface of the hollow tube 311. A rectangular groove 313 is formed in the side wall of the filter plate 312, and the hollow tube 311 is slidably connected to the inside of the rectangular groove 313. A plurality of auxiliary teeth are fixedly connected to the inner wall of the rectangular groove 313;

[0092] Among them, the bottom of the filter plate 312 is rotatably connected to the top of the limiting spring two

[0093] Rotating member, the rotating member includes a movable plate 321 rotatably connected to the side wall of the filter plate 312. One end of a plurality of movable plates 321 away from the filter plate 312 is rotatably connected to a cleaning ring 322;

[0094] Cleaning assembly 32, the cleaning assembly 32 includes a plurality of telescopic spring rods 323 fixedly connected to the top of the cleaning ring 322. The tops of the plurality of telescopic spring rods 323 are in contact with the bottom outer wall of the main body 1. A plurality of arc-shaped cleaning plates 324 are slidably connected to the inside of the cleaning ring 322. An auxiliary spring is fixedly connected to the side wall of the arc-shaped cleaning plate 324, and one end of the auxiliary spring away from the arc-shaped cleaning plate 324 is fixedly connected to the inner wall of the cleaning ring 322;

[0095] Among them, when the filter plate 312 is pushed by the hollow tube 311, the cleaning ring 322 can slide on the side wall of the filter tube 101 to realize the cleaning of the soil. When a plurality of hollow tubes 311 slide outward on the surface of the filter tube 101, while pushing the filter plate 312 to slide outward, it will also generate an outward supporting force on the stones inside the channel.

[0096] Connecting assembly 41, the connecting assembly 41 includes a central ring 412 fixedly connected between a plurality of fixing frames 411. A plug rod is fixedly connected to the inner wall of the central ring 412. A central shaft 413 is slidably connected to the inside of the central ring 412. A thread groove is formed on the outer surface of the central shaft 413, and the plug rod is slidably connected to the inside of the thread groove;

[0097] Among them, the top of the central shaft 413 is rotatably connected to the bottom outer wall of the inner plate 111; and

[0098] Support member, the support member includes a cross tooth plate 421 fixedly connected to the outer surface of the central shaft 413. A second fixing bracket 422 is provided at the bottom of the cross tooth plate 421. The middle of the second fixing bracket 422 is rotatably connected to the bottom of the central shaft 413. The top of the second fixing bracket 422 is fixedly connected to the bottom outer wall of the inner plate 111;

[0099] Transmission assembly 42, the transmission assembly 42 includes a plurality of bevel gears 423 meshingly connected to the outer surface of the cross tooth plate 421. A gear rod 424 is fixedly connected to one end of the bevel gear 423 away from the cross tooth plate 421. One end of the gear rod 424 away from the bevel gear 423 penetrates through the outer wall of the second fixing bracket 422 and extends into the interior of the hollow tube 311. A tension spring is fixedly connected to the side wall of the bevel gear 423;

[0100] Among them, the rotation of the cross tooth plate 421 can drive the bevel gear 423 and the gear rod 424 to rotate while sliding inside the hollow tube 311. When the sliding disk 213 slides upward under the adsorption force, the upward sliding of the sliding disk 213 will drive the fixing bracket 411 and the central ring 412 to slide synchronously on the surface of the central shaft 413. When the central ring 412 slides upward, it will slide upward in the thread groove on the outer surface of the central shaft 413 through the internal insertion rod and drive the central shaft 413 to rotate during the sliding.

[0101] A usage method of a foundation pit dewatering device, a foundation pit dewatering device, the method includes the following steps:

[0102] S1: Excavate a passage: First, dig a cylindrical passage around the foundation pit as required. Then connect the filtering component 11 to the main body 1. Subsequently, place the main body 1 into the passage and fill the space between the main body 1 and the passage with gravel;

[0103] S2: Place and seal: Then place the water pump 121 with the water outlet pipe 122 into the main body 1 to make it contact with the inner plate 111. Subsequently, install the vacuum plug 123 on the top of the main body 1 to seal it;

[0104] S3: Extract dewatering: After completion, start the water pump 121. When the water pump 121 works, it will extract the water in the soil through the filter pipe 101 and discharge it outward through the water outlet pipe 122 to achieve the purpose of dewatering.

[0105] During use, first dig a cylindrical channel around the foundation pit as required. Then connect the filtering component 11 to the main body 1. Subsequently, place the main body 1 inside the channel and fill the space between the main body 1 and the channel with gravel. Then place the water pump 121 with the water outlet pipe 122 inside the main body 1 to make it contact with the inner plate 111. Subsequently, install the vacuum plug 123 on the top of the main body 1 to seal it. After completion, start the water pump 121. When the water pump 121 works, it will extract the water in the soil through the filter pipe 101 and discharge it outward through the water outlet pipe 122 to achieve the purpose of dewatering.

[0106] When the water pump 121 extracts the water in the soil around the channel, the water in the soil will be extracted by the water pump 121 through the filter pipe 101 and discharged outward. When the water flows due to extraction, it will flow through the filter plate 312. When the water flows, it will carry soil and flow through the filter plate 312. When the surface of the filter plate 312 is blocked by the soil carried by the water flow, a sealed space will be formed inside the main body 1 and the filter pipe 101. Then, when the water pump 121 continues to extract, the negative pressure generated by the rotation of the rotating plate 212 during extraction will transmit the adsorption force to the bottom of the inner plate 111 through multiple holes on the inner plate 111, and under the adsorption of the suction force, the sliding disk 213 will slide upward. When the sliding disk 213 slides upward, it will push the hollow tube 311 outward through multiple second rotating plates 221. When multiple hollow tubes 311 slide outward on the surface of the filter pipe 101, while pushing the filter plate 312 outward, they will also generate an outward supporting force on the gravel inside the channel. When multiple filter plates 312 support outward, it can reduce the density change of the gravel caused by the scouring of the water flow when the water flow carries soil, resulting in the blockage between the gravel and the soil, affecting the flow rate of the water flow during extraction, thereby improving the dewatering rate.

[0107] Due to the large adsorption force of the water pump 121, when the sliding disk 213 slides under the influence of the adsorption force, it will push the filter plate 312 outward. When the filter plate 312 is pushed and slides outward, after multiple filter plates 312 support the gravel, the water flow will enter the interior of the filter pipe 101 through the gaps between multiple filter plates 312 and between the filter plate 312 and the filter pipe 101 for extraction. When the water flow enters the interior of the main body 1 through the gap, the sealed adsorption force inside the main body 1 will disappear at this time. After the sealed adsorption force disappears, the sliding disk 213 will be reset under the pulling action of the return spring. At this time, the filter plate 312 will be reset synchronously with the sliding disk 213.

[0108] When the sliding disc 213 slides upward under the adsorption force, the upward sliding of the sliding disc 213 will drive the fixed frame 411 and the central ring 412 to slide synchronously on the surface of the central shaft 413. When the central ring 412 slides upward, it will slide upward in the thread groove on the outer surface of the central shaft 413 through the internal insertion rod and drive the central shaft 413 to rotate during the sliding. When the central shaft 413 rotates, it will drive the cross tooth plate 421 to rotate synchronously. When the cross tooth plate 421 rotates, it will push the bevel gear 423 and the gear rod 424 to slide outward on the second fixed frame 422. When the gear rod 424 slides outward under the rotation of the cross tooth plate 421, the gear rod 424 will also rotate while sliding through the meshing of the bevel gear 423 and the cross tooth plate 421 when the cross tooth plate 421 rotates. When the gear rod 424 slides, it will slide into the interior of the rectangular groove 313 through the second fixed frame 422 and the hollow tube 311 and mesh with several auxiliary teeth inside the rectangular groove 313. Subsequently, after the gear rod 424 meshes with the auxiliary teeth, it will rotate while sliding backward on the surface of the auxiliary teeth. When the gear rod 424 rotates, it will drive the filter plate 312 to slide upward on the surface of the hollow tube 311. Subsequently, when the outer top end of the cross tooth plate 421 passes over the side wall of the bevel gear 423, the bevel gear 423 is reset under the action of the tension spring and drives the gear rod 424 to disengage from the auxiliary teeth. At this time, the filter plate 312 will be pulled downward by the second limit spring. When the filter plate 312 slides up and down, friction will occur between the surface of the filter plate 312 and the stones. Through the friction between the filter plate 312 and the stones, the blocked soil on the surface of the filter plate 312 can be removed, prompting the soil to fall off from the surface of the filter plate 312, thereby restoring the water passing capacity of the filter plate 312, reducing the influence on the water flow due to the blockage of the soil on the filter plate 312 during the reset of the filter plate 312, and further reducing the influence on the water flow when the filter plate 312 is blocked by soil for a long time, improving the precipitation effect.

[0109] When the filter plate 312 is pushed outward and reset by the hollow tube 311, it will slide back and forth. When the filter plate 312 slides upward, it will drive the cleaning ring 322 to slide upward under the reset of the movable plate 321 and the telescopic spring rod 323. At the same time, when the filter plate 312 slides outward, the filter plate 312 inside the cleaning ring 322 will slide outward under the elastic force of the auxiliary spring and contact the side wall of the filter plate 312. Subsequently, when the cleaning ring 322 drives the arc-shaped cleaning plate 324 extending outward to slide upward, it will scrape between the side wall of the filter plate 312 and the side wall of the filter tube 101. Then, when the filter plate 312 is reset, it will compress the arc-shaped cleaning plate 324 to make it slide into the cleaning ring 322. Subsequently, when the movable plate 321 is reset, it will push the cleaning ring 322 to slide downward through the movable plate 321. When the cleaning ring 322 and the arc-shaped cleaning plate 324 slide back and forth, they will scrape the soil on the side walls of the movable plate 321 and the filter tube 101, reducing the situation where soil enters the interior of the filter tube 101 through the gap between the filter plate 312 and the filter tube 101 along with the water flow when the filter plate 312 slides outward, resulting in soil adhering to the surface of the filter tube 101. It also reduces the situation where the surface of the filter tube 101 is blocked due to soil adhesion after the filter plate 312 slides outward. By sliding and cleaning the side walls of the filter tube 101 and the filter plate 312, it can further enhance the cleaning of soil adhesion and at the same time enhance the outward flow rate of water during precipitation, thereby further enhancing the precipitation efficiency.

[0110] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A foundation pit dewatering device, comprising a main body (1), wherein a storage space is provided inside the main body (1), and is characterized in that, Further comprising; A sliding mechanism (2), which is installed inside the storage space and is used to slide inside the storage space of the main body (1) after the surface of the main body (1) is blocked by soil; A pushing mechanism (3), which is installed on the top of the sliding mechanism (2) and is used to push the soil outside the main body (1) by the pushing mechanism (3) when the sliding mechanism (2) slides; A rotating mechanism (4), which is rotatably installed inside the storage space and is used to rotate inside the storage space when the sliding mechanism (2) rises; Wherein, after the main body (1) is blocked by soil, the sliding mechanism (2) can drive the rotating mechanism (4) to rotate inside the storage space of the main body (1) under the adsorption force and slide to realize the pushing of the soil outside the main body (1) by the pushing mechanism (3) when sliding; A filter pipe (101) is threadedly connected to the bottom of the main body (1); A sliding ring (211) and a sliding disk (213) are arranged inside the sliding mechanism (2), and the sliding mechanism (2) includes a rotating assembly (22); The pushing mechanism (3) includes a hollow pipe (311) rotatably connected inside each rotating assembly (22); A filtering component (11), which includes an inner plate (111) fixedly connected inside the filter pipe (101), a fixing disk (112) is arranged outside the inner plate (111), the fixing disk (112) is fixedly connected to the outer surface of the filter pipe (101), and a T-shaped plate (113) is arranged at the bottom of the fixing disk (112); A lifting member, which includes a sliding ring (211) slidably connected to the outer surface of the T-shaped plate (113), and a plurality of rotating plates (212) are rotatably connected to the outer surface of the sliding ring (211), and the plurality of rotating plates (212) are circumferentially arranged around the T-shaped plate (113); A pushing component (31), which includes a filter plate (312) slidably arranged on the outer surface of the hollow pipe (311), a rectangular groove (313) is formed on the side wall of the filter plate (312), and the hollow pipe (311) is slidably connected inside the rectangular groove (313).

2. The foundation pit dewatering device according to claim 1, characterized in that: The main body (1) includes: A filtering component (11), which is installed inside the filter pipe (101) through a sliding member and is used for filtering water; A precipitation component (12), which is slidably connected inside the filtering component (11); Wherein, the precipitation component (12) extracts external water through the filtering component (11) to realize the flow of external water sources.

3. The a foundation pit dewatering device according to claim 2, characterized in that: The sliding mechanism (2) includes: A limiting component (21), which slides on the outer surface of the T-shaped plate (113) through a lifting member; and The rotating assembly (22) is arranged on the top of the limiting component (21).

4. A foundation pit dewatering device according to claim 3, characterized in that: The hollow pipe (311) slidably penetrates through the outer wall of the filter pipe (101), and the pushing mechanism (3) includes: The pushing component (31) is slidably arranged on the outer surface of the hollow tube (311); and a cleaning component (32), the cleaning component (32) is rotatably arranged on the side wall of the pushing component (31) through a rotating member; wherein, the side wall of the pushing component (31) can be slidably cleaned by the sliding of the cleaning component (32).

5. A foundation pit dewatering device according to claim 4, characterized in that: The rotating mechanism (4) includes a plurality of fixing frames (411) fixedly connected to the top of the sliding disk (213), and the rotating mechanism (4) includes: a connecting component (41), the connecting component (41) is fixedly arranged on the top of the sliding disk (213); and a transmission component (42), the transmission component (42) is installed on the top of the connecting component (41) through a support member.

6. The foundation pit dewatering device according to claim 5, characterized in that: The sliding member includes a T-shaped plate (113), the top of the T-shaped plate (113) slidably penetrates through the bottom inner wall of the filter tube (101), a plurality of holes are formed in the top of the inner plate (111), a limiting spring is fixedly connected to the bottom inner wall of the T-shaped plate (113), the top of the limiting spring is fixedly connected to the bottom outer wall of the filter tube (101), and a plurality of second limiting springs are rotatably connected to the top of the fixed disk (112); a precipitation component (12), the precipitation component (12) includes a water pump (121) arranged on the top of the inner plate (111), the output end of the water pump (121) is fixedly connected to a water outlet pipe (122), a vacuum plug (123) is slidably connected to the outer surface of the water outlet pipe (122), and the top of the main body (1) can be blocked by the vacuum plug (123).

7. The foundation pit dewatering device according to claim 6, characterized in that: The limiting component (21) includes a sliding disk (213) rotatably connected to one end of a plurality of the rotating plates (212) away from the sliding ring (211), a plurality of reset springs are fixedly connected to the bottom of the sliding disk (213), and the bottoms of the plurality of reset springs are fixedly connected to the bottom inner wall of the filter tube (101); wherein, the sliding ring (211) is slidably connected to the outer surface of the T-shaped plate (113); a rotating component (22), the rotating component (22) includes a plurality of second rotating plates (221) rotatably connected to the top outer wall of the sliding disk (213), the plurality of second rotating plates (221) are symmetrically distributed, and several groups of second rotating plates (221) are circumferentially arranged around the T-shaped plate (113).

8. A foundation pit dewatering device according to claim 7, characterized in that: A plurality of auxiliary teeth are fixedly connected to the inner wall of the rectangular groove (313); wherein, the bottom of the filter plate (312) is rotatably connected to the top of the second limiting spring, a rotating member, the rotating member includes a movable plate (321) rotatably connected to the side wall of the filter plate (312), and a cleaning ring (322) is rotatably connected to one end of the plurality of movable plates (321) away from the filter plate (312). Cleaning component (32), the cleaning component (32) includes a plurality of telescopic spring rods (323) fixedly connected to the top of the cleaning ring (322), the tops of the plurality of telescopic spring rods (323) are in contact with the bottom outer wall of the main body (1), and a plurality of arc-shaped cleaning plates (324) are slidably connected inside the cleaning ring (322). An auxiliary spring is fixedly connected to the side wall of the arc-shaped cleaning plate (324), and one end of the auxiliary spring away from the arc-shaped cleaning plate (324) is fixedly connected to the inner wall of the cleaning ring (322); Among them, when the filter plate (312) is pushed by the hollow tube (311), the cleaning ring (322) can slide on the side wall of the filter tube (101) to clean the soil.

9. The foundation pit dewatering device according to claim 8, wherein: Connecting component (41), the connecting component (41) includes a central ring (412) fixedly connected between a plurality of fixing frames (411). A plug rod is fixedly connected to the inner wall of the central ring (412). A central shaft (413) is slidably connected inside the central ring (412). Thread grooves are formed on the outer surface of the central shaft (413), and the plug rod is slidably connected inside the thread grooves; Among them, the top of the central shaft (413) is rotatably connected to the bottom outer wall of the inner plate (111); and Supporting member, the supporting member includes a cross-shaped tooth plate (421) fixedly connected to the outer surface of the central shaft (413). A second fixing frame (422) is arranged at the bottom of the cross-shaped tooth plate (421). The middle of the second fixing frame (422) is rotatably connected to the bottom of the central shaft (413), and the top of the second fixing frame (422) is fixedly connected to the bottom outer wall of the inner plate (111); Transmission component (42), the transmission component (42) includes a plurality of bevel gears (423) meshed with the outer surface of the cross-shaped tooth plate (421). A gear rod (424) is fixedly connected to one end of the bevel gear (423) away from the cross-shaped tooth plate (421). One end of the gear rod (424) away from the bevel gear (423) penetrates through the outer wall of the second fixing frame (422) and extends into the hollow tube (311). A tension spring is fixedly connected to the side wall of the bevel gear (423); Among them, the rotation of the cross-shaped tooth plate (421) can drive the bevel gear (423) and the gear rod (424) to rotate while sliding inside the hollow tube (311).

10. A method for using a foundation pit dewatering device, characterized in that: Adopt a foundation pit dewatering device as described in claim 9, and the method includes the following steps: S1: Excavate a channel: First, dig a cylindrical channel around the foundation pit as required. Then connect the filtering component (11) to the main body (1). Subsequently, place the main body (1) into the channel and fill the space between the main body (1) and the channel with gravel; S2: Place and seal: Then place the water pump (121) with the water outlet pipe (122) into the main body (1) so that it contacts the inner plate (111). Subsequently, install the vacuum plug (123) on the top of the main body (1) to seal it; S3: Extracting precipitation: After completion, start the water pump (121). When the water pump (121) is working, it will extract the water in the soil through the filter pipe (101) and discharge it outward through the water outlet pipe (122) to achieve the purpose of precipitation.

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