Foundation pit drainage device for building construction

Abstract

The embodiment of the invention provides a foundation pit drainage device for building construction, and relates to the technical field of building construction. The foundation pit drainage device for building construction comprises a support part, a lifting drainage part and a water filtering part. The vertical frame is installed above the bottom frame. The lifting assembly is installed on the top in the vertical frame to suspend the bracket piece, and the lifting assembly is installed on the bracket piece. The bottom plate is fixed to the bottom of the water filtering cover, the annular plate is fixed to the outer edge of the top of the water filtering cover and connected with the bottom of the bracket piece, and the bottom of the bracket piece is provided with a flow guide opening communicated with a bottom water inlet of the sewage pump. A water filtering cover in the water filtering part is of an inverted-cone-shaped structure, resistance borne by the water filtering cover and a bottom plate at the bottom when the water filtering cover and the bottom plate are inserted into soil is small, and in other words, the water filtering cover and the bottom plate are more easily inserted into a sediment layer at the bottom of the foundation pit. And water stains in the sediment layer enter through the meshes in the water filtering cover and then are pumped by the sewage pump, so that the sewage pump can stably discharge collected water out of the foundation pit, and a good anti-blocking effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a foundation pit drainage device for building construction. Background Art

[0002] Foundation pit drainage can keep the interior of the foundation pit dry and stable, thereby ensuring the quality and progress of the foundation pit project. If there is too much water in the foundation pit, it may cause a series of problems such as soil softening and slope instability, which will affect the stability of the entire project.

[0003] At present, the commonly used method of foundation pit drainage is to place the sewage pump directly in the foundation pit for foundation pit drainage operation. Since the interior of the foundation pit is prone to excessive mud, sand and other debris during long-term use, it is easy to cause the sewage pump to have difficulty in drainage or even blockage, thus affecting the normal drainage operation of the foundation pit. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a foundation pit drainage device for construction to solve the problem that excessive silt and other debris are likely to appear inside the foundation pit during long-term use, which may cause drainage difficulties or even blockage of the sewage pump.

[0005] According to an embodiment of the present application, a foundation pit drainage device for construction includes: a support part, a lifting drainage part and a water filtering part.

[0006] The support part includes a base frame and a vertical frame, and the vertical frame is installed above the base frame;

[0007] The lifting and drainage part includes a bracket, a lifting assembly and a sewage pump, wherein the lifting assembly is installed on the top suspension bracket in the vertical frame, and the lifting assembly is installed on the bracket;

[0008] The water filtering part includes a water filtering cover with an inverted cone structure, a bottom plate and a ring plate. The bottom plate is fixed to the bottom of the water filtering cover, and the ring plate is fixed to the outer edge of the top of the water filtering cover and connected to the bottom of the bracket. The bottom of the bracket is provided with a guide port connected to the water inlet at the bottom of the sewage pump.

[0009] The drainage device is placed in the foundation pit as a whole, and the base frame and the vertical frame in the bracket part stably support the lifting drainage part and the water filter part. The lifting assembly in the lifting drainage part drives the sewage pump on the bracket to perform lifting operations. When the water level inside the foundation pit is high, the water inlet port at the bottom of the lifted sewage pump is located above the mud layer at the bottom of the foundation pit, and the impurities in the foundation pit water are blocked by the water filter cover, so that the sewage pump is less likely to be difficult to drain and blocked during drainage operations. When the collected water inside the foundation pit is close to the mud layer at the bottom, the lifting assembly continues to lower the sewage pump on the bracket, so that the water filter part at the bottom of the bracket penetrates into the mud layer at the bottom of the foundation pit. Since the water filter cover in the water filter part is an inverted cone structure, the water filter cover and the bottom plate at the bottom encounter less resistance when penetrating into the soil, that is, the water filter cover and the bottom plate are more likely to penetrate into the mud layer at the bottom of the foundation pit. The water stains in the mud layer enter through the mesh holes on the water filter cover and are then pumped out by the sewage pump, which enables the sewage pump to stably discharge the collected water in the foundation pit and has a good anti-blocking effect.

[0010] In some embodiments of the present application, the support portion further includes insertion members, and four groups of the insertion members are respectively installed at the four corners of the base frame.

[0011] In some embodiments of the present application, the tying piece includes a seat sleeve, a tying rod and a nut, the seat sleeve is fixed on the base frame, the tying rod vertically moves through the base frame, the tying rod is threaded through the seat sleeve, and the nut is arranged on the top end of the tying rod.

[0012] In some embodiments of the present application, the tying piece further includes a lower cylinder shell, the lower cylinder shell is disposed at the bottom of the base frame, and the tying rod movably passes through the lower cylinder shell.

[0013] In some embodiments of the present application, the bracket member includes a back plate, a support plate and a hanger, the diversion port is located on the support plate, and the sewage pump is installed on the support plate, the back plate is fixed on the back of the support plate, and the hanger is fixed on the back of the back plate.

[0014] In some embodiments of the present application, the bracket member further includes a guide wheel, which is rotatably disposed on the back of the back panel, and a guide rail groove that cooperates with the guide wheel is disposed on the inner side of the stand.

[0015] In some embodiments of the present application, the lifting assembly includes a mounting plate, an electric hoist and a rope, the mounting plate is fixed on the top of the frame, the electric hoist is installed on the mounting plate, and the electric hoist winds up the rope.

[0016] In some embodiments of the present application, a lifting ring is provided on the hanger, and the bottom end of the rope is connected to the lifting ring.

[0017] The foundation pit drainage device for construction also includes an anti-blocking and cleaning part, which includes a motor, a transmission shaft, a connecting frame, a scraper member and an outer cover shell. The motor is installed at the bottom of the base plate, and the output shaft of the motor rotates and passes through the base plate. The bottom end of the transmission shaft is connected to the output shaft end of the transmission shaft, the scraper member is located on the inner wall of the water filter cover, and the connecting frame member connects the transmission shaft and the scraper member, and the outer cover shell is located outside the motor and fixed to the transmission shaft.

[0018] When the water filter cover and the outer cover shell at the bottom are inserted into the mud layer at the bottom of the foundation pit, the motor inside the outer cover shell drives the transmission shaft to rotate. The rotating transmission shaft will drive the scraper parts through the connecting frame to scrape and clean the impurities and mud protruding from the mesh holes on the inner wall of the water filter cover, thereby reducing the blockage of the mesh holes on the water filter cover. The fine sand and water stains in the foundation pit are more likely to flow into the water filter cover, thereby improving the overall drainage performance of the device.

[0019] In some embodiments of the present application, the anti-blocking and cleaning part also includes a sealing gasket, which is arranged between the bottom plate and the outer cover shell.

[0020] In some embodiments of the present application, the connecting frame member includes a sleeve, a support, a seat plate, a limit block, a counterweight block, a pulley, a connecting rope and a limit rod, the sleeve is fixedly mounted on the outside of the transmission shaft, one end of the support is fixed to the outer wall of the sleeve, the limit block is arranged on the side of the seat plate, one end of the seat plate is fixed to the scraper member, and the other end of the seat plate is movably inserted into the groove of the support, limit strip grooves are arranged on both sides of the support, the limit block is slidably arranged in the limit strip grooves, the pulley is rotatably arranged in the groove of the support, the counterweight block is located below the support, the bottom end of the connecting rope is connected with the top of the counterweight block, and the connecting rope passes through the pulley and is connected to the end of the seat plate away from the scraper member, the limit rod is fixed to the support, and the counterweight block is vertically provided with a guide hole, and the limit rod movably passes through the guide hole.

[0021] When the motor does not drive the transmission shaft to rotate, under the gravity of the counterweight, the counterweight drives the seat plate to move toward the side of the support through the pulley and the connecting rope, that is, a certain gap is left between the scraper and the water filter cover. When the motor drives the transmission shaft to rotate, the connection between the sleeve, the support and the seat plate will drive the scraper to rotate together. At this time, the rotating scraper generates a certain centrifugal force. Under the action of the centrifugal force, the scraper will drive the counterweight to move upward through the seat plate and the connecting rope, and at the same time, the scraper moves outward to fit the water filter cover. At this time, the scraper can better scrape and clean the impurities and sediment at the mesh inside the water filter cover. When the scraper is worn, the counterweight is brought upward under the action of centrifugal force, and the scraper can continue to move outward to contact the inner wall of the water filter cover, which plays a compensatory role and ensures that the scraper can have a good scraping and cleaning effect in long-term use. The connection between the counterweight, the connecting rope and the seat plate also ensures that when the scraper is rotating and scraping, if it encounters hard impurities protruding from the mesh, the scraper will slow down and move inward under the gravity of the counterweight, avoiding the hard impurities and preventing the motor from being forced to stop rotating, which has a good protective effect on the motor. The guide hole on the counterweight cooperates with the limit rod to ensure that the counterweight moves smoothly in the vertical direction.

[0022] In some embodiments of the present application, the scraper member includes a seat frame, a rotating shaft, an elastic sleeve, an outer shell tube and a convex nail. The seat frame is fixed to the end of the elastic sleeve away from the support, the rotating shaft is rotatably arranged on the inner side of the seat frame, the elastic sleeve is fixedly sleeved on the outside of the rotating shaft, the outer shell tube is sleeved on the outside of the elastic sleeve, a cavity layer is reserved between the inner wall of the outer shell tube and the outer wall of the elastic sleeve, circular openings are arranged at both ends of the outer shell tube, and the outer wall of the outer shell tube is arranged with evenly distributed convex nails.

[0023] When the output shaft of the motor drives the transmission shaft to rotate, the rotating transmission shaft drives the outer shell tube on the inner side of the seat frame in the scraper part through the sleeve, support, and seat plate to contact the inner wall of the water filter cover under the action of centrifugal force. The outer shell tube outside the rotating shaft rolls on the inner wall of the water filter cover, and the convex nails on the outer side of the outer shell tube can better clean the impurities and sediment in the mesh of the water filter cover when rolling, which has a better cleaning effect than the traditional scraper cleaning method. There is a cavity layer between the outer shell tube and the elastic sleeve, that is, when the outer shell tube is held by the inner wall of the water filter cover, the outer shell tube rotates eccentrically around the rotating shaft. This design makes the outer shell tube have a better protective effect when colliding with the elastic sleeve. At this time, the cooperation of the counterweight block, connecting rope, limit rod and seat plate still has a certain compensation effect on the outer shell tube in the scraper part, ensuring that the convex nails on the outside of the outer shell tube can clean the impurities and sediment in the mesh of the water filter cover for a long time and stably.

[0024] The beneficial effects of the present application are as follows: the present application obtains a foundation pit drainage device for construction through the above-mentioned design. When the collected water inside the foundation pit is close to the mud layer at the bottom, the lifting assembly continues to lower the sewage pump on the bracket, so that the water filter part at the bottom of the bracket penetrates into the mud layer at the bottom of the foundation pit. Since the water filter cover in the water filter part is an inverted cone structure, the water filter cover and the bottom plate at the bottom encounter less resistance when penetrating into the soil, that is, the water filter cover and the bottom plate are more likely to penetrate into the mud layer at the bottom of the foundation pit. The water stains in the mud layer enter through the mesh holes on the water filter cover and are then pumped out by the sewage pump, which can realize the stable discharge of the collected water in the foundation pit by the sewage pump and has a good anti-blocking effect.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic structural diagram of a foundation pit drainage device for construction according to an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the installation structure of the insertion member according to an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the structure of the lifting and draining part and the water filtering part according to an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of the structure of a bracket according to an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the structure of the water filtering part and the anti-blocking cleaning part according to an embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the cross section of the water filtering part and the anti-clogging cleaning part structure according to an embodiment of the present application;

[0033] Figure 7 is a schematic diagram of the structure of the connecting frame member and the scraper member according to an embodiment of the present application;

[0034] Figure 8 is a schematic diagram of a support structure according to an embodiment of the present application;

[0035] Fig. 9 is a schematic structural diagram of a scraper member according to another embodiment of the present application;

[0036] Fig.10 is a schematic diagram of the internal structure of a scraper member according to another embodiment of the present application;

[0037] Fig.11 According to another embodiment of the present application Fig.10 Schematic diagram of the partially enlarged structure of part A.

[0038] icon:

[0039] 10-bracket part; 110-base frame; 120-stand; 130-guide rail groove; 140-insertion piece; 141-seat cover; 142-tie rod; 143-nut; 144-lower shell; 20-lifting and drainage part; 210-bracket part; 211-back plate; 212-support plate; 213-flow guide port; 214-hanging bracket; 215-guide wheel; 220-lifting assembly; 221-mounting plate; 222-electric hoist; 223-rope; 230-sewage pump; 30-water filter part; 310-water filter cover; 320-bottom plate; 330-ring plate; 40-anti-blocking cleaning part; 410-motor; 420-transmission shaft; 430-connecting frame; 431-sleeve; 432-support; 433-seat plate; 434-limiting block; 435-limiting strip groove; 436-counterweight block; 437-pulley; 438-connecting rope; 439-limiting rod; 440-scraper member; 441-seat frame; 442-rotating shaft; 443-elastic sleeve; 444-housing tube; 445-convex nail; 446-cavity layer; 447-round mouth; 450-outer cover shell; 460-sealing gasket. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0041] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0043] A foundation pit drainage device for construction according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0044] See also Figure 1-Figure 11 According to an embodiment of the present application, a foundation pit drainage device for construction includes: a support part 10, a lifting drainage part 20 and a water filtering part 30.

[0045] The support part 10 is used to support the lifting and drainage part 20. The lifting and drainage part 20 can be lifted and lowered for drainage, and cooperates with the water filtering part 30 at the bottom to have a better anti-blocking and drainage effect.

[0046] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 The support part 10 includes a base frame 110 and a vertical frame 120. The vertical frame 120 is installed above the base frame 110, and the base frame 110 and the vertical frame 120 are fixed by welding. The lifting and drainage part 20 includes a bracket 210, a lifting assembly 220 and a sewage pump 230. The lifting assembly 220 is installed in the vertical frame 120 to suspend the bracket 210 at the top, and the lifting assembly 220 is installed on the bracket 210. The water filtering part 30 includes a water filtering cover 310 with an inverted cone structure, a bottom plate 320 and a ring plate 330. The bottom plate 320 is fixed to the bottom of the water filtering cover 310, and the ring plate 330 is fixed to the outer edge of the top of the water filtering cover 310 and connected to the bottom of the bracket 210. The bottom of the bracket 210 is provided with a guide port 213 connected to the bottom water inlet of the sewage pump 230.

[0047] The working principle of the foundation pit drainage device for construction is as follows: the drainage device is placed in the foundation pit as a whole, and the base frame 110 and the vertical frame 120 in the bracket part 10 stably support the lifting drainage part 20 and the water filtering part 30. The lifting assembly 220 in the lifting drainage part 20 drives the sewage pump 230 on the bracket 210 to perform lifting operations. When the water level inside the foundation pit is high, the water inlet port at the bottom of the lifted sewage pump 230 is located above the mud and sand layer at the bottom of the foundation pit, and the impurities in the foundation pit water are blocked by the water filter cover 310, so that the sewage pump 230 is less likely to be difficult to drain and blocked during drainage operations. When the collected water inside the foundation pit is close to the mud and sand layer at the bottom, the lifting assembly 220 continues to lower the sewage pump 230 on the bracket 210, so that the water filtering part 30 at the bottom of the bracket 210 is inserted into the mud and sand layer at the bottom of the foundation pit. Since the water filter cover 310 in the water filter part 30 is an inverted cone structure, the water filter cover 310 and the bottom plate 320 at the bottom encounter less resistance when penetrating into the soil, that is, the water filter cover 310 and the bottom plate 320 are more likely to penetrate into the mud layer at the bottom of the foundation pit. Water stains in the mud layer enter through the mesh on the water filter cover 310 and are then pumped out by the sewage pump 230, which enables the sewage pump 230 to stably discharge the collected water in the foundation pit and has a good anti-blocking effect.

[0048] For specific settings, see Figure 1 and Figure 2 The bracket part 10 also includes a tie-in piece 140, and four groups of tie-in pieces 140 are respectively installed at the four corners of the base frame 110. The tie-in piece 140 includes a seat cover 141, a tie rod 142 and a nut 143. The seat cover 141 is fixed to the base frame 110 by welding, and an internal thread is arranged inside the seat cover 141. The tie rod 142 is movable in the vertical position and penetrates the base frame 110, and the tie rod 142 is screwed through the seat cover 141, and the nut 143 is arranged at the top of the tie rod 142. Use a tool to rotate the nut 143 at the top of the tie rod 142 to adjust the height of the tie rod 142 under the base frame 110. When the device is lowered into the foundation pit, the tie rod 142 can be inserted into the mud and sand layer inside the foundation pit, so that the device can be stably placed in the foundation pit.

[0049] Furthermore, the tying member 140 further includes a lower cylinder shell 144, which is disposed at the bottom of the base frame 110, and the tying rod 142 movably penetrates the lower cylinder shell 144. When the device is not in use and is lifted to the ground, the nut 143 can be rotated to drive the tying rod 142 to rotate, and the bottom end of the tying rod 142 can be retracted into the lower cylinder shell 144, which can protect the tip of the bottom of the tying rod 142 to a certain extent.

[0050] For specific settings, see Figure 4The bracket member 210 includes a back plate 211, a support plate 212 and a hanger 214. The guide port 213 is located on the support plate 212, and the sewage pump 230 is installed on the support plate 212. The back plate 211 is fixed on the upper back of the support plate 212, and the hanger 214 is fixed on the back of the back plate 211. The bracket member 210 also includes a guide wheel 215, which is rotatably set on the back of the back plate 211, and a guide rail groove 130 that matches the guide wheel 215 is set on the inner side of the vertical frame 120. The lifting assembly 220 drives the hanger 214 to move in the vertical direction, that is, drives the sewage pump 230 on the support plate 212 to move in the vertical direction, so as to adjust the height of the sewage pump 230 in the vertical direction.

[0051] Specifically, the lifting assembly 220 includes a mounting plate 221, an electric hoist 222 and a rope 223. The mounting plate 221 is fixed to the top of the vertical frame 120, the electric hoist 222 is mounted on the mounting plate 221, and the electric hoist 222 winds up the rope 223. A lifting ring is provided on the hanger 214, and the bottom end of the rope 223 is connected to the lifting ring. The electric hoist 222 winds up the rope 223, and the rope 223 drives the hanger 214 to move in the vertical direction.

[0052] When a large number of impurities are attached to the mesh of the water filter cover 310 in the above-mentioned foundation pit drainage device for construction or the mesh is blocked by mud and sand, the drainage volume of the sewage pump 230 is reduced, affecting the drainage of the sewage pump 230.

[0053] See also Figure 5 and Figure 6 The foundation pit drainage device for construction also includes an anti-blocking cleaning part 40, which includes a motor 410, a transmission shaft 420, a connecting frame 430, a scraper 440 and an outer cover 450. The motor 410 is installed at the bottom of the bottom plate 320, and the output shaft of the motor 410 rotates through the bottom plate 320, and the bottom end of the transmission shaft 420 is connected to the output shaft end of the transmission shaft 420. The scraper 440 is located on the inner wall of the water filter cover 310, and the connecting frame 430 connects the transmission shaft 420 and the scraper 440, and the outer cover 450 is located outside the motor 410 and fixedly arranged with the transmission shaft 420.

[0054] When the water filter cover 310 and the outer cover shell 450 at the bottom are inserted into the mud layer at the bottom of the foundation pit, the motor 410 inside the outer cover shell 450 drives the transmission shaft 420 to rotate, and the rotating transmission shaft 420 will drive the scraper member 440 through the connecting frame member 430 to scrape and clean the impurities and mud protruding from the mesh holes on the inner wall of the water filter cover 310, thereby reducing the blockage of the mesh holes on the water filter cover 310, and the fine sand and water stains in the foundation pit are more likely to flow into the water filter cover 310, thereby improving the overall drainage performance of the device.

[0055] Furthermore, the anti-blocking cleaning part 40 further includes a sealing gasket 460, which is disposed between the bottom plate 320 and the outer cover 450. The sealing gasket 460 is disposed to improve the sealing between the bottom plate 320 and the outer cover 450, and the outer cover 450 is used to protect the motor 410 installed at the bottom of the bottom plate 320.

[0056] The connecting frame member 430 commonly used in the above-mentioned foundation pit drainage device for construction will support the scraper member 440 to fit the inner wall of the water filter cover 310. After the scraper member 440 is subjected to long-term wear, the gap between the scraper member 440 and the water filter cover 310 will become larger and larger, and the scraper member 440 will have a worse effect on cleaning impurities and sediment protruding from the mesh holes on the inner wall of the water filter cover 310.

[0057] In the above specific implementation, please refer to Figure 6 , Figure 7 and Figure 8 The connecting frame member 430 includes a sleeve 431, a support 432, a seat plate 433, a limit block 434, a counterweight 436, a pulley 437, a connecting rope 438 and a limit rod 439. The sleeve 431 is fixedly sleeved on the outside of the transmission shaft 420, one end of the support 432 is fixed to the outer wall of the sleeve 431, the limit block 434 is arranged on the side of the seat plate 433, one end of the seat plate 433 is fixed to the scraper member 440, and the other end of the seat plate 433 is movably inserted into the groove of the support 432, and both sides of the support 432 are provided with limit strip grooves 435, and the limit block 434 is slidably arranged inside the limit strip groove 435. The pulley 437 is rotatably set inside the groove of the support 432, the counterweight block 436 is located below the support 432, the bottom end of the connecting rope 438 is connected to the top of the counterweight block 436, and the connecting rope 438 passes through the pulley 437 and is connected to the end of the seat plate 433 away from the scraper member 440, the limiting rod 439 is fixed to the support 432, and the counterweight block 436 is provided with a guide hole in the vertical direction, and the limiting rod 439 movably passes through the guide hole.

[0058] When the motor 410 does not drive the transmission shaft 420 to rotate, under the gravity of the counterweight 436, the counterweight 436 drives the seat plate 433 to move toward the side of the support 432 through the cooperation of the pulley 437 and the connecting rope 438, that is, at this time, there is a certain gap between the scraper 440 and the water filter cover 310. When the motor 410 drives the transmission shaft 420 to rotate, the connection between the sleeve 431, the support 432, and the seat plate 433 will drive the scraper 440 to rotate together. At this time, the rotating scraper 440 generates a certain centrifugal force. Under the action of the centrifugal force, the scraper 440 will drive the counterweight 436 to move upward through the seat plate 433 and the connecting rope 438, and at the same time, the scraper 440 moves outward to fit the water filter cover 310. At this time, the scraper 440 can better scrape and clean the impurities and mud at the mesh inside the water filter cover 310. When the scraper member 440 is worn, the counterweight block 436 is pulled upward under the action of centrifugal force, and the scraper member 440 can continue to move outward to contact the inner wall of the water filter cover 310, playing a compensatory role, ensuring that the scraper member 440 can have a good scraping and cleaning effect in long-term use.

[0059] The connection arrangement of the counterweight block 436, the connecting rope 438 and the seat plate 433 also ensures that when the scraper member 440 is rotating to scrape and clean, if the scraper member 440 encounters hard impurities protruding from the mesh, the scraper member 440 will slow down and move inward under the gravity of the counterweight block 436, thereby avoiding the hard impurities and preventing the motor 410 from being forced to stop rotating, thereby having a good protective effect on the motor 410.

[0060] The guide hole on the counterweight block 436 cooperates with the limiting rod 439 to ensure that the counterweight block 436 moves smoothly in the vertical direction.

[0061] If the scraper member 440 in the above-mentioned foundation pit drainage device for construction adopts a conventional scraper to directly clean the impurities and sediment in the mesh of the water filter cover 310, the effect is poor.

[0062] This application also provides an implementation method, please refer to Fig. 9 , Fig.10 and Fig.11 The scraper member 440 includes a seat frame 441, a rotating shaft 442, an elastic sleeve 443, an outer shell tube 444 and a convex nail 445. The seat frame 441 is fixed to the end of the elastic sleeve 443 away from the support 432, the rotating shaft 442 is rotatably arranged inside the seat frame 441, the elastic sleeve 443 is fixedly sleeved outside the rotating shaft 442, and the outer shell tube 444 is sleeved outside the elastic sleeve 443. A cavity layer 446 is reserved between the inner wall of the outer shell tube 444 and the outer wall of the elastic sleeve 443, and circular openings 447 are arranged at both ends of the outer shell tube 444. The outer wall of the outer shell tube 444 is provided with evenly distributed convex nails 445.

[0063] When the output shaft end of the motor 410 drives the transmission shaft 420 to rotate, the rotating transmission shaft 420 drives the outer shell tube 444 inside the seat frame 441 of the scraper member 440 to contact the inner wall of the water filter cover 310 under the action of centrifugal force through the sleeve 431, the support 432, and the seat plate 433. The outer shell tube 444 outside the rotating shaft 442 rolls on the inner wall of the water filter cover 310, and the protruding nails 445 outside the outer shell tube 444 can better clean the impurities and mud in the mesh of the water filter cover 310 when rolling, which has a better cleaning effect than the traditional scraper cleaning method.

[0064] There is a cavity layer 446 between the outer shell tube 444 and the elastic sleeve 443, that is, when the outer shell tube 444 is attached to the inner wall of the water filter cover 310, the outer shell tube 444 rotates eccentrically around the rotating shaft 442. This design provides better protection when the outer shell tube 444 collides with the elastic sleeve 443.

[0065] Similarly, the cooperation of the counterweight block 436, the connecting rope 438, the limit rod 439 and the seat plate 433 still has a certain compensation effect on the outer shell tube 444 in the scraper member 440, ensuring that the protruding nails 445 on the outside of the outer shell tube 444 can clean the impurities and mud in the mesh holes of the water filter cover 310 in a long-term and stable manner.

[0066] It should be noted that the specific model specifications of the electric hoist 222, the sewage pump 230, and the motor 410 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail. The power supply and principle of the electric hoist 222, the sewage pump 230, and the motor 410 are clear to those skilled in the art and will not be described in detail here.

[0067] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0068] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A foundation pit drainage device for construction, characterized in that: include: A support part (10), the support part (10) comprising a base frame (110) and a stand frame (120), the stand frame (120) being installed above the base frame (110); A lifting drainage part (20), the lifting drainage part (20) comprising a bracket member (210), a lifting assembly (220) and a sewage pump (230), the lifting assembly (220) being installed on the top suspension bracket member (210) in the vertical frame (120), and the lifting assembly (220) being installed on the bracket member (210); A water filter portion (30), the water filter portion (30) comprising a water filter cover (310) of an inverted cone structure, a bottom plate (320) and a ring plate (330), the bottom plate (320) being fixed to the bottom of the water filter cover (310), the ring plate (330) being fixed to the top outer edge of the water filter cover (310) and connected to the bottom of a bracket member (210), and the bottom of the bracket member (210) being provided with a guide port (213) connected to the bottom water inlet of a sewage pump (230).

2. A foundation pit drainage device for construction according to claim 1, characterized in that: The support part (10) further comprises an inserting member (140), and four groups of the inserting members (140) are respectively installed at the four corners of the base frame (110).

3. A foundation pit drainage device for construction according to claim 2, characterized in that: The tying piece (140) comprises a seat cover (141), a tying rod (142) and a nut (143); the seat cover (141) is fixed on the base frame (110); the tying rod (142) is vertically movable and passes through the base frame (110); the tying rod (142) is threadedly connected to pass through the seat cover (141); and the nut (143) is arranged on the top end of the tying rod (142).

4. A foundation pit drainage device for construction according to claim 3, characterized in that: The tying piece (140) further comprises a lower cylinder shell (144), wherein the lower cylinder shell (144) is arranged at the bottom of the base frame (110), and the tying rod (142) movably passes through the lower cylinder shell (144).

5. A foundation pit drainage device for construction according to claim 1, characterized in that: The bracket member (210) comprises a back plate (211), a support plate (212) and a hanger (214); the guide port (213) is located on the support plate (212), and the sewage pump (230) is installed on the support plate (212); the back plate (211) is fixed to the back of the support plate (212), and the hanger (214) is fixed to the back of the back plate (211).

6. A foundation pit drainage device for construction according to claim 5, characterized in that: The bracket member (210) further comprises a guide wheel (215), wherein the guide wheel (215) is rotatably arranged on the back of the back plate (211), and a guide rail groove (130) matching with the guide wheel (215) is arranged on the inner side of the stand (120).

7. A foundation pit drainage device for construction according to claim 5, characterized in that: The lifting assembly (220) comprises a mounting plate (221), an electric hoist (222) and a rope (223); the mounting plate (221) is fixed to the top of the vertical frame (120); the electric hoist (222) is mounted on the mounting plate (221), and the electric hoist (222) winds up the rope (223).

8. A foundation pit drainage device for construction according to claim 7, characterized in that: The hanger (214) is provided with a lifting ring, and the bottom end of the rope (223) is connected to the lifting ring.

9. A foundation pit drainage device for construction according to claim 1, characterized in that: The invention also includes an anti-blocking cleaning part (40), which includes a motor (410), a transmission shaft (420), a connecting frame (430), a scraper member (440) and an outer cover shell (450). The motor (410) is installed at the bottom of the base plate (320), and the output shaft of the motor (410) rotates and passes through the base plate (320). The bottom end of the transmission shaft (420) is connected to the output shaft end of the transmission shaft (420). The scraper member (440) is located on the inner wall of the water filter cover (310), and the connecting frame member (430) connects the transmission shaft (420) and the scraper member (440). The outer cover shell (450) is located outside the motor (410) and is fixedly arranged with the transmission shaft (420).

10. A foundation pit drainage device for construction according to claim 9, characterized in that: The anti-blocking cleaning part (40) further comprises a sealing gasket (460), and the sealing gasket (460) is arranged between the bottom plate (320) and the outer cover shell (450).

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