Precipitation device for underground building construction

Abstract

The utility model provides a dewatering device for underground building construction, which comprises a vehicle body and a filter box with a filter chamber and a slag discharge chamber which are communicated with each other, a circular truncated cone-shaped filter cartridge is arranged in the filter chamber, a water purification cavity is formed between the filter cartridge and the filter chamber, a water inlet is arranged at the large-diameter end of the filter cartridge close to the slag discharge chamber, and a water outlet is arranged at the small-diameter end of the filter cartridge. The water purification cavity is provided with a water outlet; the water pumping unit comprises a first driving mechanism, a water pumping head and a water pump, the first driving mechanism can drive the water pumping head to move in the three-dimensional space, a first pipeline is arranged between the output end of the water pumping head and the water inlet, a filtering mechanism is arranged in the water pumping head, and a second pipeline is arranged between the water suction end of the water pump and the water outlet; and the plugging unit comprises a plugging plate which is in sealing connection with the filter box, and one part of the plugging plate extends into the space between the filter chamber and the slag discharging chamber, can slide relative to the filter box and seals and isolates the filter chamber and the slag discharging chamber. The dewatering device for underground building construction has the advantages of being high in construction efficiency and capable of adapting to complex terrain environments.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a dewatering device for underground building construction. Background Art

[0002] Underground construction refers to construction where the main body is located underground, such as an underground station. The construction of underground buildings needs to be carried out in the underground part, but due to the high groundwater level, construction will be difficult. Therefore, dewatering operations are required before construction to lower the groundwater to a reasonable level before subsequent operations can be carried out.

[0003] like Figure 1 As shown, an existing dewatering device 9 for underground station construction includes a frame 90, a water pumping box 91, a water outlet pipe 92, a water pump 93, a filter plate 94, a filter cartridge 95 and a hydraulic cylinder 96. The water pumping box 91 is a hollow cylindrical structure. The water pump 93 is installed on the frame 90 and connects the top of the water pumping box 91 with the water outlet pipe 92. The bottom of the water pumping box 91 is evenly spaced along its radial direction with multiple groups of water inlet holes. Any group of water inlet holes includes multiple first water inlet holes evenly distributed along the circumferential direction of the water pumping box 91, and any two adjacent groups of water inlet holes are staggered. The filter plate 94 is horizontally fixed in the water pumping box 91 and is sealed with the inner wall of the water pumping box 91. The filter plate 94 is evenly spaced with multiple second water inlet holes, and the size of any second water inlet hole is smaller than the size of any first water inlet hole. The filter cartridge 95 is coaxially fixed in the water pumping box 91 and is located above the filter plate 94. The filter cartridge 95 is a hollow truncated cone structure with a large upper portion and a small lower portion and an open upper end. The upper end of the filter cartridge 95 is sealed and connected to the inner side wall of the water pumping box 91. The filter cartridge 95 is evenly spaced and provided with a plurality of third water inlet holes. The size of any third water inlet hole is smaller than the size of any second water inlet hole. The hydraulic cylinder 96 is connected between the water pumping box 91 and the frame 90. The hydraulic cylinder can drive the water pumping box 91 to move into the borehole 97.

[0004] The dewatering device 9 for underground station construction can drive the pumping box 91 into the groundwater through the hydraulic cylinder 96, and can filter the groundwater through the filter plate 94 and the filter cartridge 95 to effectively reduce the occurrence of blockage problems; however, the disadvantages of the dewatering device 9 for underground station construction are that the pumping box 91 can only move up and down vertically, and in the process of underground construction, various complex ground surfaces are often encountered, resulting in the underground station construction The dewatering device 9 is sometimes unable to move near the groundwater, making the operation of the underground station construction The dewatering device 9 is more troublesome; in addition, after a certain period of use, the filter plate 94 and the filter cartridge 95 will be blocked by mud and sand, and when cleaning the mud and sand, it is necessary to control the underground station construction The dewatering device 9 is stopped, affecting the construction efficiency. Summary of the invention

[0005] In order to solve the above problems, the main purpose of the utility model is to provide a dewatering device for underground building construction which has high construction efficiency and can adapt to complex terrain environments.

[0006] In order to achieve the main purpose of the utility model, the utility model provides a dewatering device for underground building construction, which includes a vehicle body, a pumping unit and a blocking unit. The vehicle body is provided with a filter box, the filter box has a filter chamber and a slag discharge chamber that are horizontally distributed and interconnected, a filter cartridge is provided in the filter chamber, the filter cartridge is in a truncated cone shape, a clean water cavity is formed between the outer periphery of the filter cartridge and the filter chamber, the large diameter end of the filter cartridge is close to the slag discharge chamber and is connected to the slag discharge chamber, the filter chamber is provided with a water inlet at the small diameter end of the filter cartridge, the water inlet is connected to the inside of the filter cartridge, the clean water cavity has a water outlet, and the pumping unit is provided with a filter box. The unit includes a first driving mechanism, a pumping head and a water pump. The first driving mechanism is installed on the vehicle body. The execution end of the first driving mechanism is connected to the pumping head. The first driving mechanism drives the pumping head to move in a three-dimensional space. A first pipeline is provided between the output end of the pumping head and the water inlet. A filtering mechanism is provided in the pumping head. A second pipeline is provided between the water suction end and the water outlet of the water pump. The blocking unit includes a blocking plate. The blocking plate is sealingly connected to the filter box. A part of the blocking plate extends between the filter chamber and the slag discharge chamber. The blocking plate can slide relative to the filter box and seal and isolate the filter chamber and the slag discharge chamber.

[0007] As can be seen from the above, since the pumping unit can drive the pumping head to move in three-dimensional space through the first driving mechanism, the underground construction dewatering device can be parked at a suitable position first, and then the first driving mechanism can be used to drive the pumping head to the operating position for pumping operations. This design enables the underground construction dewatering device to adapt to various complex ground conditions and improve operational flexibility, safety and reliability; and the groundwater extracted by the pumping unit is first filtered once by the filtering mechanism in the pumping head, and then enters the filter box and is filtered twice by the filter cartridge, so as to further retain the silt in the groundwater in the filter cartridge, and under the action of the filter cartridge, it flows to the slag discharge chamber to wait for cleaning. The groundwater after the secondary filtration is pumped and discharged to the designated position by the water pump through the outlet of the clean water chamber. The design of the filter cartridge can further filter out the silt in the groundwater to prevent the silt from clogging the water pump, thereby extending the service life of the water pump. In addition, by setting up a sealing unit, when it is necessary to clear the mud and sand in the slag discharge chamber, the sealing plate is controlled to seal and isolate the filter chamber and the slag discharge chamber, so that when the mud and sand in the slag discharge chamber are cleared, the water pump can continue to perform reliable pumping and filtering operations through the filter chamber, and the slag discharge chamber can simultaneously perform mud and sand cleaning, so that the precipitation device for underground construction does not have to stop working during the mud and sand cleaning process, thereby improving construction efficiency; when the mud and sand in the slag discharge chamber are cleaned, the sealing plate is reset, so that the mud and sand in the filter cartridge can continue to flow to the slag discharge chamber, so that the filter cartridge is not blocked, thereby ensuring the filtering effect of the filter cartridge.

[0008] A preferred solution is that the filter cartridge is rotatably connected to the filter box around its first axis; the dewatering device for underground building construction also includes a driving unit, which can drive the filter cartridge to rotate.

[0009] As can be seen from the above, by providing a driving unit to drive the filter cartridge to rotate, it is beneficial for the sediment filtered by the filter cartridge to move to the slag discharge chamber, and better prevents the filter cartridge from being blocked, thereby improving the filtering effect of the filter cartridge.

[0010] Another preferred scheme is that the filtering mechanism includes a filter cover, a cleaning brush, a sealing cover and a spiral rod, the filter cover has an axial interface, the axial interface passes through the top of the pumping head and is connected to the first pipeline, the axial interface is rotatably connected to the pumping head around its own second axis, there is a gap between the filter cover and the pumping head, the cleaning brush is arranged in the gap and is adjacent to the outer peripheral wall of the filter cover, the sealing cover is installed at the bottom of the pumping head, the sealing cover is sleeved on the bottom of the filter cover and can rotate relative to the filter cover around the second axis, a filter hole group is provided on the sealing cover, the filter hole group is connected to the interior of the filter cover, the spiral rod is located in the filter cover, the spiral rod has spiral blades and a rotating shaft, the rotating shaft is rotatably connected to the filter cover around the second axis, and the rotating shaft is fixedly connected to the sealing cover.

[0011] It can be seen from the above that during the operation of the dewatering device for underground construction, when groundwater enters the interior of the filter cover, the spiral rod is pushed by the flow of water to drive the pumping head, the sealing cover and the cleaning brush to rotate synchronously, and the rotating cleaning brush realizes real-time cleaning of the outer surface of the filter cover, thereby preventing the filter cover from being blocked by the mixed mud and sand in the groundwater, so that the groundwater can be continuously and smoothly pumped into the filter box.

[0012] Another preferred solution is that the first driving mechanism includes a column, a first telescopic arm, a second telescopic arm and a first motor, the column is mounted on the vehicle body, the column is parallel to the height direction of the vehicle body, the first telescopic arm is rotatably mounted on the column around a third axis of the column, the first telescopic arm is perpendicular to the column, the second telescopic arm is mounted on the first end of the first telescopic arm, the second telescopic arm is parallel to the column, the pumping head is mounted on the second end of the second telescopic arm, the first motor is connected between the column and the first telescopic arm, and the first motor drives the first telescopic arm to rotate relative to the column.

[0013] As can be seen from the above, through the cooperation between the column, the first telescopic arm, the second telescopic arm and the first motor, the pumping head can be moved to any position within a certain range of three-dimensional space, thereby reducing the impact of complex ground conditions on the dewatering device for underground construction.

[0014] Another preferred solution is that the filter box is provided with a slag cleaning port at the slag discharge chamber, the slag cleaning port is arranged close to the bottom of the filter box, a door panel is installed at the slag cleaning port, and the door panel can seal or open the slag cleaning port.

[0015] It can be seen from the above that the location of the slag cleaning port enables the staff to clean the mud and sand in the slag discharge chamber more conveniently and thoroughly; the setting of the door panel ensures the sealing of the filter box, so that the precipitation device used in underground construction can reliably extract groundwater.

[0016] A further solution is that the blocking unit also includes a trigger mechanism and a limiting mechanism, the trigger mechanism is located in the slag discharge chamber, the trigger mechanism is located at the lower side of the filter cylinder, the trigger mechanism includes a bearing assembly and a first elastic assembly, a sealed cavity is formed between the bearing assembly and the lower part of the slag discharge chamber, the first elastic assembly is located in the sealed cavity, the first elastic assembly forces the bearing assembly to move toward the top of the slag discharge chamber, the limiting mechanism includes a trigger member and a linkage assembly, the trigger member is slidably connected to the filter box in the height direction of the vehicle body, the lower part of the trigger member has a trigger block, the trigger block extends into the sealed cavity and is located below the bearing assembly, a limiting block is provided above the blocking plate, the linkage assembly is connected to the trigger member, the linkage assembly can be connected to the limiting block to prevent the blocking plate from sealing and isolating the filter chamber and the slag discharge chamber, and the bearing assembly can drive the trigger block to move to the bottom of the vehicle body to release the linkage assembly from the limiting block.

[0017] As can be seen from the above, the trigger mechanism receives the mud and sand in the slag discharge chamber through the load-bearing component, and the first elastic component is used to adjust the weight of the mud and sand that triggers the limiting mechanism, so that when the weight of the mud and sand on the load-bearing component is greater than the set value, the load-bearing component drives the trigger member to move to the bottom of the vehicle body through the trigger block, and then the trigger member controls the linkage component to limit the sealing plate, so that the sealing plate moves into the filter box under the action of gravity to seal and isolate the filter chamber and the slag discharge chamber, thereby realizing the automatic sealing operation of the sealing plate and improving the reliability of the precipitation device used in underground construction.

[0018] A further solution is that a driving block is provided on the trigger member, and a first guide surface is provided at the bottom of the driving block; the linkage component includes a limit member and a second elastic component, the limit member is slidably mounted on the filter box in the horizontal direction, the limit member is provided with a receiving block, the receiving block has a second guide surface matching the first guide surface, the top of the limit member has a limit arm, the limit arm is adjacent to the bottom of the limit block, the second elastic component is connected between the limit member and the filter box, and the second elastic component forces the limit member to move toward the trigger member; when the bearing component can drive the trigger block to move toward the bottom of the vehicle body, the trigger member drives the limit member to move back to the trigger member through the first guide surface and the second guide surface, so that the limit arm is disengaged from the limit block.

[0019] As can be seen from the above, when the bearing assembly drives the trigger member to move downward, the trigger member, through the cooperation of the first guide surface of the driving block and the second guide surface of the receiving block, pushes the limit member to move back toward the trigger member, so that the limit arm of the limit member is separated from the support of the limit block of the trigger plate, thereby causing the trigger plate to move into the filter box under the action of gravity.

[0020] A further solution is that the supporting component includes a material receiving platform and a sliding drawer, the material receiving platform is connected to the first elastic component, the sliding drawer is located at the top of the material receiving platform, and the sliding drawer is slidably connected to the material receiving platform along the insertion direction of the slag cleaning port.

[0021] As can be seen from the above, the sliding drawer plate mainly plays the role of receiving mud and sand, and the sliding design between the sliding drawer plate and the material receiving platform makes the cleaning of mud and sand on the bearing component more convenient and quick.

[0022] A further solution is that the dewatering device for underground building construction also includes a lifting unit, which can drive the sealing plate to move outside the filter box, so that the sealing plate releases the sealing isolation between the filter chamber and the slag discharge chamber.

[0023] As can be seen from the above, the lifting unit is used to realize automatic resetting of the blocking plate, so as to reduce the labor intensity of the workers, improve the automation level of the dewatering device used in underground construction, and improve the safety of the operation.

[0024] A further solution is that the top of the blocking plate has a clamped portion; the lifting unit includes a second driving mechanism and a clamping mechanism, the clamping mechanism is connected to the execution end of the second driving mechanism, the second driving mechanism can drive the clamping mechanism to move relative to the clamped portion in the height direction of the vehicle body, and the clamping mechanism can clamp or release the clamped portion.

[0025] It can be seen from the above that when the second driving mechanism drives the clamping mechanism to move to the clamped part of the sealing plate, the clamping mechanism clamps the clamped part; when the second driving mechanism drives the clamping mechanism to move back to the filter box, the sealing plate is lifted by the clamping mechanism to release the sealing isolation between the filter chamber and the slag discharge chamber; when the clamping mechanism releases the clamped part, the sealing plate moves to the specified position under the action of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of the utility model of a dewatering device for underground building construction.

[0027] Figure 2 It is a cross-sectional view of an embodiment of the dewatering device for underground building construction of the utility model with some components omitted.

[0028] Figure 3 It is a structural diagram of a filter cartridge of an embodiment of the utility model of a precipitation device for underground building construction.

[0029] Figure 4 It is a cross-sectional view of a pumping head of an embodiment of the utility model of a dewatering device for underground building construction.

[0030] Figure 5 It is a structural diagram of the bearing components of an embodiment of the utility model of a dewatering device for underground building construction.

[0031] Figure 6 yes Figure 2 Enlarged view of point A in the middle.

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0033] Reference Figure 1 and Figure 2 The dewatering device 100 for underground construction includes a vehicle body 1, a pumping unit 2, a blocking unit 3, a driving unit 4, a lifting unit 5 and a controller. The controller is electrically connected to the pumping unit 2, the driving unit 4 and the lifting unit 5 respectively.

[0034] Combination Figure 3 The vehicle body 1 is provided with a filter box 11, which has a filter chamber 111 and a slag discharge chamber 112, which are arranged horizontally and connected to each other. A filter cartridge 12 is provided in the filter chamber 111, which is truncated cone-shaped, and the first axis of the filter cartridge 12 is parallel to the distribution direction of the filter chamber 111 and the slag discharge chamber 112. The outer periphery of the filter cartridge 12 and the filter chamber 111 form a clean water cavity 1111; wherein the large diameter end of the filter cartridge 12 is arranged close to the slag discharge chamber 112, and correspondingly, the small diameter end of the filter cartridge 12 is arranged away from the slag discharge chamber 112. The interior of the filter cartridge 12 is connected to the clean water chamber 1111 and the slag discharge chamber 112. When groundwater mixed with mud and sand enters the interior of the filter cartridge 12 in the filter box 11, the groundwater will flow to the clean water chamber 1111 through the filter mesh structure of the filter cartridge 12, while the mud and sand in the groundwater will be blocked by the filter mesh structure of the filter cartridge 12 inside the filter cartridge 12. Through the structural and layout design of the filter cartridge 12, the mud and sand blocked in the filter cartridge 12 will flow along the inner wall of the filter cartridge 12 to the slag discharge chamber 112 for sedimentation, so that the mud and sand can be cleaned up later.

[0035] Preferably, the filter cartridge 12 can rotate relative to the filter box 11 around its first axis, so as to facilitate the movement of the silt filtered by the filter cartridge 12 to the slag discharge chamber 112, and better prevent the filter cartridge 12 from being blocked, thereby improving the filtering effect of the filter cartridge 12. Among them, the drive unit 4 is used to drive the filter cartridge 12 to rotate, so as to realize the automation of the rotation of the filter cartridge 12. In addition, a wheel set 13 is provided at the bottom of the vehicle body 1, so that the movement of the precipitation device 100 for underground construction construction is more convenient.

[0036] The driving unit 4 preferably includes a second motor 41, a first gear 42 and a second gear 43. The second motor 41 is installed on the filter box 11; the first gear 42 is coaxially arranged with the filter cartridge 12, and the first gear 42 is fixedly connected with the filter cartridge 12, so that the first gear 42 can rotate synchronously with the filter cartridge 12; the second gear 43 is installed on the output shaft of the second motor 41, and the second gear 43 is meshed with the first gear 42, so that the second motor 41 can drive the filter cartridge 12 to rotate through the first gear 42 and the second gear 43.

[0037] The filter chamber 111 is provided with a water inlet 1112 at the small diameter end of the filter cartridge 12, and the water inlet 1112 is connected to the interior of the filter cartridge 12, so that the extracted groundwater can enter the interior of the filter cartridge 12 in the filter chamber 111 through the water inlet 1112. The clean water cavity 1111 has a water outlet 1113, so that the groundwater filtered by the filter cartridge 12 and entering the clean water cavity 1111 can be discharged to a designated location through the water outlet 1113.

[0038] The pumping unit 2 includes a first driving mechanism 21, a pumping head 22 and a water pump 23. The first driving mechanism 21 is mounted on the vehicle body 1, and the execution end of the first driving mechanism 21 is connected to the pumping head 22 to control the movement of the pumping head 22 in a three-dimensional space. The pumping head 22 is used to extend into a designated position to cooperate with the water pump 23 to pump groundwater into the filter box 11.

[0039] Preferably, the first driving mechanism 21 includes a column 211, a first telescopic arm 212, a second telescopic arm 213, a first motor 214 and a counterweight 215. The column 211 is mounted on the vehicle body 1, and the column 211 is parallel to the height direction of the vehicle body 1. The first telescopic arm 212 is rotatably mounted on the column 211 around the third axis of the column 211, and the first telescopic arm 212 is perpendicular to the column 211. The second telescopic arm 213 is mounted on the first end of the first telescopic arm 212 (such as the piston rod of the first telescopic arm 212), the second telescopic arm 213 is parallel to the column 211, and the pumping head 22 is mounted on the second end of the second telescopic arm 213 (such as the piston rod of the second telescopic arm 213). The first motor 214 is preferably connected between the column 211 and the first telescopic arm 212 to drive the first telescopic arm 212 to rotate relative to the column 211; of course, as another optional solution, in other embodiments, the column 211 can be rotated relative to the vehicle body 1 around its third axis, and the column 211 and the first telescopic arm 212 are fixedly connected, and the first motor 214 is connected between the vehicle body 1 and the column 211 to drive the column 211 to rotate, but this arrangement will increase the load of the first motor 214. The counterweight block 215 is installed between the top of the column 211 and the vehicle body 1 to balance the first telescopic arm 212, the second telescopic arm 213 and the pumping head 22 to prevent the column 211 from tipping over. Through the structural design of the first driving mechanism 21, the pumping head 22 can be moved to any position within a certain range of three-dimensional space, thereby reducing the impact of complex ground conditions on the dewatering device 100 for underground construction. Preferably, the first telescopic arm 212 and the second telescopic arm 213 are oil cylinders.

[0040] Combination Figure 4 The pumping head 22 is connected to the water inlet 1112 on the filter box 11 through the first pipeline 231, so that the water extracted through the pumping head 22 can enter the filter box 11 through the first pipeline 231. Preferably, a filter mechanism 221 is provided in the pumping head 22, and the filter mechanism 221 includes a filter cover 2211, a cleaning brush 2212, a blocking cover 2213 and a spiral rod 2214. The filter cover 2211 has an axial interface 22111, and the axial interface 22111 passes through the top of the pumping head 22, and the axial interface 22111 is rotatably connected to the pumping head 22 around its second axis, so that the pumping head 22 can rotate relative to the filter cover 2211, and the pumping head 22 is connected to the first pipeline 231 through the axial interface 22111. The filter cover 2211 is preferably cylindrical, a second filter hole group is provided in the middle and lower part of the filter cover 2211, and the bottom of the filter cover 2211 is open; in addition, there is a gap between the filter cover 2211 and the pump head 22.

[0041] The cleaning brush 2212 extends along the axial direction of the filter cover 2211, and the height of the cleaning brush 2212 is close to that of the filter cover 2211. The cleaning brush 2212 is arranged in the gap, and the cleaning brush 2212 is adjacent to the outer peripheral wall of the filter cover 2211. The cleaning brush 2212 is used to sweep the outer periphery of the filter cover 2211 to remove the mud and sand on the outer surface of the filter cover 2211, so that the groundwater can better enter the filter cover 2211 through the second filter hole group on the filter cover 2211 without blocking the second filter hole group.

[0042] The plugging cover 2213 is fixedly mounted on the bottom of the pumping head 22, and is sleeved on the bottom of the filter cover 2211. The plugging cover 2213 can rotate relative to the filter cover 2211 around the second axis of the shaft interface 22111, and the plugging cover 2213 covers the bottom opening of the filter cover 2211. The filter cover 2211 is provided with a filter hole group 22131, and the filter hole group 22131 is connected to the inside of the filter cover 2211.

[0043] The spiral rod 2214 is disposed in the filter cover 2211 . The spiral rod 2214 has a spiral blade 22141 and a rotating shaft 22142 . The rotating shaft 22142 is rotatably connected to the filter cover 2211 around the second axis of the shaft interface 22111 , and the rotating shaft 22142 is fixedly connected to the blocking cover 2213 . During the operation of the dewatering device 100 for underground building construction, when groundwater enters the filter cover 2211 of the pumping head 22, the spiral blade 22141 of the spiral rod 2214 is driven by the flow of water to rotate the rotating shaft 22142, and then the rotating shaft 22142 drives the pumping head 22 and the cleaning brush 2212 to rotate synchronously through the sealing cover 2213, and the rotating cleaning brush 2212 realizes real-time cleaning of the outer surface of the filter cover 2211, thereby preventing the mixed mud and sand in the groundwater from clogging the second filter hole group of the filter cover 2211, so that the groundwater can be continuously and smoothly pumped into the filter box 11.

[0044] The water pump 23 is preferably installed on the filter box 11, and the water suction end of the water pump 23 is connected to the water outlet 1113 through the second pipeline 232. The water discharge end of the water pump 23 can discharge the water in the clean water chamber 1111 of the filter box 11 to a designated location through a third pipeline.

[0045] See also Figure 2, the blocking unit 3 includes a blocking plate 31, a trigger mechanism 32 and a limiting mechanism 33. The blocking plate 31 is sealed and connected to the filter box 11. The blocking plate 31 is preferably arranged at the upper part of the filter box 11, and the blocking plate 31 is slidably connected to the filter box 11 in the height direction of the vehicle body 1. A part of the blocking plate 31 extends into the filter box 11 and is located between the filter chamber 111 and the slag discharge chamber 112. The blocking plate 31 can slide into the filter box 11 to seal and isolate the filter chamber 111 and the slag discharge chamber 112. Preferably, a limiting block 311 and a clamped portion 312 are provided at the top of the blocking plate 31, and the limiting block 311 and the clamped portion 312 are always located outside the filter box 11. Among them, the clamped portion 312 is preferably in the shape of an arrow.

[0046] The filter box 11 is provided with a slag cleaning port 1121 at the slag discharge chamber 112, and the slag cleaning port 1121 is arranged near the bottom of the filter box 11. A door panel 1122 is installed at the slag cleaning port 1121, and the door panel 1122 is opened or closed to seal or open the slag cleaning port 1121. The location of the slag cleaning port 1121 enables the staff to clean the mud and sand in the slag discharge chamber 112 more conveniently and thoroughly; the setting of the door panel 1122 ensures the sealing of the filter box 11, so that the dewatering device 100 for underground construction can reliably extract groundwater.

[0047] The trigger mechanism 32 is located in the slag discharge chamber 112, and the trigger mechanism 32 is located at the lower side of the filter cartridge 12. The trigger mechanism 32 includes a bearing assembly 321 and a first elastic assembly 322. A sealed cavity 3210 is formed between the bearing assembly 321 and the lower part of the slag discharge chamber 112 to prevent the water in the filter chamber 111 and the slag discharge chamber 112 from entering the sealed cavity 3210, thereby ensuring the reliability of the water pump 23 in extracting groundwater. The first elastic assembly 322 is located in the sealed cavity 3210, and the first elastic assembly 322 forces the bearing assembly 321 to move toward the top of the slag discharge chamber 112. When the silt filtered by the filter cartridge 12 enters the slag discharge chamber 112 and falls onto the bearing assembly 321, as the amount of silt increases, the silt and the bearing assembly 321 gradually move toward the slag discharge port 1121, so that the first elastic assembly 322 is compressed by the assembly. Among them, the first elastic assembly 322 preferably includes more than two first compression springs.

[0048] Preferably, combined Figure 5The bearing assembly 321 includes a receiving platform 3211 and a sliding drawer 3212. The receiving platform 3211 is connected to the first elastic assembly 322. The sliding drawer 3212 is located at the top of the receiving platform 3211, and the sliding drawer 3212 is slidably connected to the receiving platform 3211 along the insertion direction of the slag removal port 1121. The sliding drawer 3212 mainly plays the role of receiving mud and sand, and the sliding design between the sliding drawer 3212 and the receiving platform 3211 makes it more convenient and quick to clean the mud and sand on the bearing assembly 321; for example, when it is necessary to clean the sediment on the bearing assembly 321, the sliding drawer 3212 is dragged out from the slag outlet 1121 for cleaning. Before dragging out the sliding drawer 3212, the receiving platform 3211 can be limited by an auxiliary tool to prevent the receiving platform 3211 from moving up after the sliding drawer 3212 is pulled out.

[0049] The limiting mechanism 33 includes a trigger member 331 and a linkage assembly 332. The trigger member 331 is slidably connected to the filter box 11 in the height direction of the vehicle body 1. The lower part of the trigger member 331 has a trigger block 3311. The trigger block 3311 extends into the sealing cavity 3210 and is located below the supporting assembly 321. The linkage assembly 332 is connected to the trigger member 331. The linkage assembly 332 can be connected to the limiting block 311 to block the sealing plate 31 from moving into the filter box 11, thereby preventing the sealing plate 31 from sealing and isolating the filter chamber 111 and the slag discharge chamber 112. The supporting assembly 321 can drive the trigger block 3311 to move to the bottom of the vehicle body 1 to release the linkage assembly 332 from the limiting block 311. The trigger mechanism 32 receives the mud and sand in the slag discharge chamber 112 through the bearing component 321, and the first elastic component 322 is used to adjust the weight of the mud and sand that triggers the limiting mechanism 33, so that when the weight of the mud and sand on the bearing component 321 is greater than the set value, the bearing component 321 drives the trigger member 331 to move toward the bottom of the vehicle body 1 through the trigger block 3311, and then the trigger member 331 controls the linkage component 332 to limit the sealing plate 31, so that the sealing plate 31 moves into the filter box 11 under the action of gravity, so as to seal and isolate the filter chamber 111 and the slag discharge chamber 112, thereby realizing the automated sealing operation of the sealing plate 31 and improving the reliability of the dewatering device 100 for underground building construction.

[0050] Preferably, in the present embodiment, a driving block 3312 is provided on the trigger member 331, and the driving block 3312 is preferably a triangular block, and the bottom of the driving block 3312 has a first guide surface. The linkage assembly 332 includes a limiter 3321 and a second elastic assembly 3322, and the limiter 3321 is slidably mounted on the filter box 11 in the horizontal direction, and a receiving block 33211 is provided on the limiter 3321, and the receiving block 33211 is preferably a triangular block, and the receiving block 33211 has a second guide surface, and the second guide surface is in contact with the first guide surface. Further, a convex block 32111 is provided at the bottom of the receiving platform 3211, and the convex block 32111 is used to cooperate with the trigger block 3311 of the trigger member 331, so that the bearing assembly 321 can better trigger the trigger member 331 to move toward the bottom of the vehicle body 1. Among them, the second elastic assembly 3322 preferably includes more than two second compression springs.

[0051] The top of the limiting member 3321 has a limiting arm 33212, and the limiting arm 33212 can be adjacent to the bottom of the limiting block 311. The second elastic component 3322 is connected between the limiting member 3321 and the filter box 11, and the second elastic component 3322 is used to force the limiting member 3321 to move toward the trigger member 331, so that the limiting member 3321 blocks the trigger member 331 from moving toward the bottom of the vehicle body 1 through the receiving block 33211 and the driving block 3312, and the limiting arm 33212 is adjacent to the bottom of the limiting block 311 of the blocking plate 31, so as to block the blocking plate 31 from moving into the filter box 11. When the bearing assembly 321 can drive the trigger block 3311 to move toward the bottom of the vehicle body 1, the trigger member 331 moves downward, and the trigger member 331 pushes the limiting member 3321 to move back to the filter box 11 through the first guide surface of the driving block 3312 and the second guide surface of the receiving block 33211, so that the limiting arm 33212 of the limiting member 3321 is disengaged from the limiting block 311 of the sealing plate 31, and then the sealing plate 31 moves into the filter box 11 under the action of gravity, so as to seal and isolate the filter chamber 111 and the slag discharge chamber 112.

[0052] Combination Figure 6, the lifting unit 5 is installed on the vehicle body 1, and the lifting unit 5 is used to drive the blocking plate 31 to move outside the filter box 11, so that the blocking plate 31 releases the sealing isolation between the filter chamber 111 and the slag discharge chamber 112. The lifting unit 5 is used to realize automatic resetting of the blocking plate 31, so as to reduce the labor intensity of workers, improve the automation degree of the dewatering device 100 for underground construction, and improve the safety of operation. Preferably, the lifting unit 52 includes a second driving mechanism 51 and a clamping mechanism 52, and the clamping mechanism 52 is connected to the execution end of the second driving mechanism 51, so that the second driving mechanism 51 can drive the clamping mechanism 52 to move relative to the clamped part 312 in the height direction of the vehicle body 1, and the clamped part 312 can clamp or release the clamped part 312 of the blocking plate 31. Among them, the second driving mechanism 51 preferably adopts an oil cylinder.

[0053] The clamping mechanism 52 preferably includes a base plate 521, a guide column 522, a clamping arm 523, a connecting rod 524 and a tension spring 525. The base plate 521 is connected to the execution end of the second driving mechanism 51 (such as the piston rod of the second driving mechanism 51), so that the second driving mechanism 51 can control the entire clamping mechanism 52 to move in the height direction through the base plate 521.

[0054] The guide column 522 is slidably connected to the base plate 521 in height, and the first end (i.e., the bottom end) of the guide column 522 has a connecting portion 5221, and the connecting portion 5221 is located below the base plate 521. When the second driving mechanism 51 drives the clamping mechanism 52 to move back to the blocking plate 31, the second end (i.e., the top end) of the guide column 522 can move to contact the vehicle body 1, so that the guide column 522 remains stationary and the second driving mechanism 51 can continue to drive the base plate 521 to move back to the blocking plate 31.

[0055] There are two clamping arms 523, which are arranged in mirror symmetry. The first end of the clamping arm 523 has a hook portion 5231, and a clamping position is formed between the hook portions 5231 of the two clamping arms 523, which can clamp the clamped portion 312 of the blocking plate 31. The second end of the clamping arm 523 is hinged to the base plate 521, and there are two connecting rods 524, which correspond to the two clamping arms 523 one by one. The first end of the connecting rod 524 is hinged to the connecting portion 5221 of the guide column 522, and the second end of the connecting rod 524 is hinged to the clamping arm 523.

[0056] The tension spring 525 is connected between the two clamping arms 523, and the tension spring 525 forces the two clamping arms 523 to move toward each other. Preferably, the guide column 522, the two clamping arms 523, the two connecting rods 524 and the tension spring 525 form a set of clamping assemblies, and the number of the clamping assemblies can be more than two, and the more than two sets of clamping assemblies are distributed along the width direction of the blocking plate 31.

[0057] The working process of the dewatering device 100 for underground building construction is briefly described below:

[0058] When the dewatering device 100 for underground building construction is used, the dewatering device 100 for underground building construction is moved to a suitable position; then, the first driving mechanism 21 drives the pumping head 22 to move down to a specified position, such as the first motor 214 drives the column 211 to drive the first telescopic arm 212, the second telescopic arm 213 and the pumping head 22 to rotate, the first telescopic arm 212 is telescoped to drive the second telescopic arm 213 and the pumping head 22 to move horizontally, and the second telescopic arm 213 is telescoped to drive the bottom of the pumping head 22 to a suitable position.

[0059] Next, the water pump 23 is started, and the groundwater is pumped into the filter box 11 through the pumping head 22 and the first pipeline 231. During the pumping process, the mixed sediment in the groundwater is first filtered through the filter mechanism 221 of the pumping head 22. During the pumping process, the cleaning brush 2212 sweeps the periphery of the filter cover 2211 in real time under the action of the spiral rod 2214 to prevent the sediment from blocking the filter cover 2211. In addition, the driving unit 4 drives the filter cartridge 12 to rotate, and the filter cartridge 12 performs secondary filtration on the sediment in the groundwater. Under the action of the water pump 23, the groundwater after secondary filtration is pumped from the clean water cavity 1111 to the designated position through the second pipeline 232, and the sediment filtered after the secondary filtration falls onto the bearing assembly 321 in the slag discharge chamber 112 through the filter cartridge 12.

[0060] As the weight of the mud and sand increases, the bearing assembly 321 gradually moves toward the bottom of the vehicle body 1 and gradually compresses the first elastic assembly 322. When the protrusion 32111 of the bearing assembly 321 moves to the trigger block 3311 of the trigger member 331, as the weight of the mud and sand increases, the trigger member 331 is gradually driven to move toward the bottom of the vehicle body 1, and the limiting member 3321 gradually moves away from the trigger member 331, so that the limiting arm 33212 of the limiting member 3321 gradually disengages from the limiting block 311 of the blocking plate 31, and the second elastic assembly 3322 is gradually compressed.

[0061] When the weight of the silt on the bearing assembly 321 reaches a preset weight value, the limiting arm 33212 of the limiting member 3321 is disengaged from the limiting block 311 of the blocking plate 31 under the push of the trigger member 331, and the blocking plate 31 moves into the filter box 11 under the action of gravity to seal and isolate the filter chamber 111 and the slag discharge chamber 112. At this time, the dewatering device 100 for underground construction can still continue to pump out groundwater, and the door panel 1122 at the slag discharge port 1121 can be opened at this time to clean the silt in the slag discharge chamber 112. After the cleaning of the silt in the slag discharge chamber 112 is completed, the door panel 1122 is closed so that the door panel 1122 reseals the slag discharge port 1121.

[0062] Next, the second driving mechanism 51 of the lifting unit 5 drives the clamping mechanism 52 to move toward the blocking plate 31. When the clamping mechanism 52 moves to the clamped portion 312 of the blocking plate 31, as the second driving mechanism 51 drives the clamping mechanism 52 to move downward, the two clamping arms 523 of the clamping mechanism 52 move away from each other under the action of the arrow-shaped clamped portion 312. At this time, the tension spring 525 is stretched, and the guide column 522 slides relative to the base plate 521. When the hook 5231 of the clamping arm 523 passes over the clamped portion 312, the two clamping arms 523 move toward each other under the action of the tension spring 525, and the hook 5231 is fastened to the bottom of the arrow-shaped clamped portion 312.

[0063] Next, the second driving mechanism 51 of the lifting unit 5 drives the clamping mechanism 52 to move back toward the filter box 11 to pull the blocking plate 31 back toward the filter box 11, so that the blocking plate 31 releases the sealing isolation of the filter chamber 111 and the slag discharge chamber 112. During the movement of the blocking plate 31 back toward the filter box 11, the limit member 3321 is controlled to move back toward the trigger member 331 to prevent the limit arm 33212 from hindering the upward movement of the blocking plate 31. When the height of the limit block 311 of the blocking plate 31 is higher than the limit arm 33212, the control of the limit member 3321 can be released, so that the limit member 3321 moves toward the trigger member 331 under the action of the second elastic component 3322 until the limit member 3321 is in the initial position.

[0064] As the second driving mechanism 51 of the lifting unit 5 drives the clamping mechanism 52 to move away from the filter box 11, when the top end of the guide column 522 of the clamping mechanism 52 contacts the vehicle body 1, the vehicle body 1 limits the guide column 522 from continuing to move upward, while the base plate 521 continues to move upward under the drive of the second driving mechanism 51; at this time, the base plate 521 slides relative to the guide column 522, and as the base plate 521 moves upward, the two clamping arms 523 move away from each other, releasing the clamping of the clamped portion 312 of the sealing plate 31, so that the sealing plate 31 moves downward again under the action of gravity until the bottom of the limit block 311 contacts the limit arm 33212, so as to limit the sealing plate 31 from continuing to move downward.

[0065] In addition, a position sensor and an alarm may be provided in the sealing chamber 3210 , so that when the sealing plate 31 seals and isolates the filter chamber 111 and the slag discharge chamber 112 , the position sensor sends a detection signal to the controller, so that the controller controls the alarm to sound, thereby reminding the staff to clean the mud and sand in the slag discharge chamber 112 .

[0066] In summary, it can be seen that since the pumping unit 2 can drive the pumping head 22 to move in three-dimensional space through the first driving mechanism 21, the underground construction dewatering device 100 can be parked at a suitable position before the first driving mechanism 21 drives the pumping head 22 to be lowered to the working position for pumping. This design enables the underground construction dewatering device 100 to adapt to various complex ground conditions and improve the flexibility, safety and reliability of the operation. The groundwater extracted by the pumping unit 2 first passes through the pumping head 22. After the filtering mechanism 221 performs the first filtering, the groundwater enters the filter box 11 and is filtered twice by the filter cartridge 12 to further retain the silt in the groundwater in the filter cartridge 12, and under the action of the filter cartridge 12, it flows to the slag discharge chamber 112 to wait for cleaning. The groundwater after the second filtering is pumped and discharged to the designated location by the water pump 23 through the water outlet 1113 of the clean water chamber 1111. The design of the filter cartridge 12 can further filter out the silt in the groundwater to prevent the silt from clogging the water pump 23, thereby extending the service life of the water pump 23. In addition, by setting up the blocking unit 3, when it is necessary to clear the silt in the slag discharge chamber 112, the blocking plate 31 is controlled to seal and isolate the filter chamber 111 and the slag discharge chamber 112, so that when clearing the silt in the slag discharge chamber 112, the water pump 23 can continue to perform reliable water pumping and filtering operations through the filter chamber 111, and the slag discharge chamber 112 can simultaneously clear the silt, so that the precipitation device 100 for underground construction does not need to stop working during the silt cleaning process, thereby improving the construction efficiency; when the silt in the slag discharge chamber 112 is cleaned, the blocking plate 31 is reset, so that the silt in the filter cartridge 12 can continue to flow to the slag discharge chamber 112, so that the filter cartridge 12 is not blocked, thereby ensuring the filtering effect of the filter cartridge 12.

[0067] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dewatering device for underground building construction, characterized in that: include: A vehicle body, wherein a filter box is provided on the vehicle body, wherein the filter box has a filter chamber and a slag discharge chamber that are horizontally distributed and communicated with each other, wherein a filter cartridge is provided in the filter chamber, wherein the filter cartridge is truncated cone-shaped, wherein a clean water cavity is formed between the outer periphery of the filter cartridge and the filter chamber, wherein the large diameter end of the filter cartridge is close to the slag discharge chamber and communicated with the slag discharge chamber, wherein the filter chamber is provided with a water inlet at the small diameter end of the filter cartridge, wherein the water inlet is communicated with the interior of the filter cartridge, and wherein the clean water cavity has a water outlet; A pumping unit, the pumping unit comprising a first driving mechanism, a pumping head and a water pump, the first driving mechanism being mounted on the vehicle body, the execution end of the first driving mechanism being connected to the pumping head, the first driving mechanism driving the pumping head to move in a three-dimensional space, a first pipeline being arranged between the output end of the pumping head and the water inlet, a filtering mechanism being arranged in the pumping head, and a second pipeline being arranged between the water suction end of the water pump and the water outlet; A plugging unit, wherein the plugging unit comprises a plugging plate, wherein the plugging plate is sealed and connected to the filter box, wherein a portion of the plugging plate extends between the filter chamber and the slag discharge chamber, and wherein the plugging plate can slide relative to the filter box and seal and isolate the filter chamber and the slag discharge chamber.

2. The dewatering device for underground construction according to claim 1, characterized in that: The filter cartridge is rotatably connected to the filter box around its first axis; The dewatering device for underground building construction further comprises a driving unit, and the driving unit can drive the filter cartridge to rotate.

3. The dewatering device for underground building construction according to claim 1, characterized in that: The filtering mechanism comprises: A filter cover, wherein the filter cover has an axial interface, the axial interface passes through the top of the pumping head and is connected to the first pipeline, the axial interface is rotatably connected to the pumping head around its second axis, and there is a gap between the filter cover and the pumping head; a cleaning brush, the cleaning brush being disposed in the gap and adjacent to the outer peripheral wall of the filter housing; A plugging cover is installed at the bottom of the pumping head, and is sleeved on the bottom of the filter cover and can rotate relative to the filter cover around the second axis. A filter hole group is provided on the plugging cover, and the filter hole group is communicated with the interior of the filter cover; A spiral rod, wherein the spiral rod is located in the filter cover, the spiral rod has spiral blades and a rotating shaft, the rotating shaft is rotatably connected to the filter cover around the second axis, and the rotating shaft is fixedly connected to the blocking cover.

4. The dewatering device for underground building construction according to claim 1, characterized in that: The first driving mechanism comprises: A column, wherein the column is mounted on the vehicle body and is parallel to a height direction of the vehicle body; A first telescopic arm, wherein the first telescopic arm is rotatably mounted on the column around a third axis of the column, and the first telescopic arm is perpendicular to the column; A second telescopic arm, the second telescopic arm is mounted on the first end of the first telescopic arm, the second telescopic arm is parallel to the column, and the pumping head is mounted on the second end of the second telescopic arm; A first motor is connected between the column and the first telescopic arm, and the first motor drives the first telescopic arm to rotate relative to the column.

5. The dewatering device for underground building construction according to claim 1, characterized in that: The filter box is provided with a slag cleaning port at the slag discharge chamber, the slag cleaning port is arranged close to the bottom of the filter box, a door panel is installed at the slag cleaning port, and the door panel can seal or open the slag cleaning port.

6. The dewatering device for underground construction according to claim 5, characterized in that: The blocking unit further comprises: A trigger mechanism, the trigger mechanism is located in the slag discharge chamber, the trigger mechanism is located at the lower side of the filter cartridge, the trigger mechanism includes a bearing assembly and a first elastic assembly, a sealed cavity is formed between the bearing assembly and the lower part of the slag discharge chamber, the first elastic assembly is located in the sealed cavity, and the first elastic assembly forces the bearing assembly to move toward the top of the slag discharge chamber; A limiting mechanism, the limiting mechanism includes a trigger member and a linkage assembly, the trigger member is slidably connected to the filter box in the height direction of the vehicle body, the lower part of the trigger member is provided with a trigger block, the trigger block extends into the sealing cavity and is located below the bearing assembly, a limiting block is provided above the sealing plate, the linkage assembly is connected to the trigger member, the linkage assembly can be connected to the limiting block to prevent the sealing plate from sealing and isolating the filter chamber and the slag discharge chamber, and the bearing assembly can drive the trigger block to move toward the bottom of the vehicle body to release the connection between the linkage assembly and the limiting block.

7. The dewatering device for underground construction according to claim 6, characterized in that: The trigger member is provided with a driving block, and the bottom of the driving block has a first guide surface; The linkage assembly includes a limiter and a second elastic assembly, the limiter is slidably mounted on the filter box in a horizontal direction, a receiving block is provided on the limiter, the receiving block has a second guide surface matched with the first guide surface, the top of the limiter has a limiter arm, the limiter arm is adjacent to the bottom of the limiter block, the second elastic assembly is connected between the limiter and the filter box, and the second elastic assembly forces the limiter to move toward the trigger member; When the bearing assembly can drive the trigger block to move toward the bottom of the vehicle body, the trigger member drives the limiting member to move away from the trigger member through the first guide surface and the second guide surface, so that the limiting arm is separated from the limiting block.

8. The dewatering device for underground building construction according to claim 6, characterized in that: The bearing assembly comprises: A material receiving platform, the material receiving platform is connected to the first elastic component; A sliding drawer plate is located at the top of the material receiving platform, and the sliding drawer plate is slidably connected to the material receiving platform along the insertion direction of the slag cleaning port.

9. The dewatering device for underground building construction according to any one of claims 1 to 8, characterized in that: The dewatering device for underground building construction also includes a lifting unit, which can drive the sealing plate to move outside the filter box, so that the sealing plate releases the sealing isolation between the filter chamber and the slag discharge chamber.

10. The dewatering device for underground building construction according to claim 9, characterized in that: The top of the blocking plate has a clamped portion; The lifting unit includes a second driving mechanism and a clamping mechanism, wherein the clamping mechanism is connected to an execution end of the second driving mechanism, and the second driving mechanism can drive the clamping mechanism to move relative to the clamped part in the height direction of the vehicle body, and the clamping mechanism can clamp or release the clamped part.

Images