CN117868188B - Miniature pumping and draining device for underground water of narrow foundation pit and application method of miniature pumping and draining device - Google Patents
Miniature pumping and draining device for underground water of narrow foundation pit and application method of miniature pumping and draining device Download PDFInfo
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- CN117868188B CN117868188B CN202410282028.2A CN202410282028A CN117868188B CN 117868188 B CN117868188 B CN 117868188B CN 202410282028 A CN202410282028 A CN 202410282028A CN 117868188 B CN117868188 B CN 117868188B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000005086 pumping Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000002689 soil Substances 0.000 claims abstract description 36
- 230000008093 supporting effect Effects 0.000 claims abstract description 33
- 238000005553 drilling Methods 0.000 claims description 137
- 238000003825 pressing Methods 0.000 claims description 99
- 230000002572 peristaltic effect Effects 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 16
- 239000003673 groundwater Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 3
- 239000011090 solid board Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of foundation pit drainage engineering and discloses a miniature pumping device for underground water of a narrow foundation pit and a use method thereof, the miniature pumping device comprises a soil ramming layer, a foundation pit retaining wall is arranged on the inner side of the soil ramming layer, a support frame is arranged above the foundation pit retaining wall, the bottom surface of the support frame is fixedly connected with support leg rods for supporting the support frame, and the inside of the front end and the back end of the support frame are slidably connected with extension hack rods for adjusting and stretching according to the width of the foundation pit.
Description
Technical Field
The invention relates to the technical field of foundation pit drainage engineering, in particular to a miniature pumping and draining device for underground water of a narrow foundation pit and a use method thereof.
Background
The soil layer bottom is tamped and exists the cavity that exists after the plant is rotten, and the rainwater can be through the downward infiltration of soil layer of ramming to enter into the cavity, leads to soil around the cavity to dissolve and makes the cavity enlarge, leads to the wall body fracture to avoid the cavity to lead to follow-up house foundation structure subsidence, needs to pump down the water in the cavity of basis below to through the mode of grout, increase the support strength of foundation below rammed earth, avoid appearing subsidence, and to comparatively narrow foundation ditch, construction workers hardly get into in the foundation ditch and bore holes and follow-up operation of pumping water.
The patent with the application number of CN202010548557.4 discloses a miniature pumping device for underground water of a narrow foundation pit and a construction method thereof, wherein the device comprises an outer drill rod, an inner drill rod, a drill rod adapter, an inner drill rod puller, a drainage adapter, a drainage hose and a water storage pumping device; and then the inner drill rod is pulled out to drain the soil body, then the geotechnical cloth is wrapped on the inner drill rod and inserted into the outer drill rod, the drill rod is connected with one end of a drainage hose through a drainage adapter, and the other end of the drainage hose is connected with a water tank of a water storage water pump arranged on one side of a retaining wall of a foundation pit, which is not affected by water seepage. The technical problem that the drainage hole is drilled in the pit wall of the foundation pit with rich underground water and narrow space is solved, and the technical problem that drainage of the foundation pit is limited by the geometric dimension of the foundation pit, the power and the lift of machines and tools and the like, and the drainage difficulty of accumulated water at the bottom of the pit is high is solved.
However, the above patent still cannot solve the problem that the constructor needs to bend down and drill holes and drain water when working in a narrow foundation pit, so that the construction difficulty is high, and therefore, it is necessary to design a miniature pumping and draining device for underground water in the narrow foundation pit, which can drill holes in the narrow foundation pit for subsequent drainage, and a using method thereof.
Disclosure of Invention
The invention aims to provide a miniature pumping device for underground water of a narrow foundation pit and a use method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a miniature drainage device of narrow foundation ditch groundwater, includes soil ramming layer, soil ramming layer's inboard is provided with the foundation ditch dado, the top of foundation ditch dado is provided with the support frame, support frame bottom surface fixedly connected with is used for playing the supporting leg pole of supporting effect to the support frame, the inside sliding connection at the front and back both ends of support frame has the extension hack lever that is used for according to foundation ditch width adjustment tensile, fixedly connected with chassis frame between the support frame front portion both ends, the top of chassis frame is provided with the drainage end shell, push rod spout has all been seted up to the left and right sides both ends top surface of hinge support frame seat, the inboard sliding connection of push rod spout has the through axle inserted bar, the through pole hole has been seted up to the inside of extension hack lever;
The inside of the drainage end shell is provided with a drilling mechanism, the drilling mechanism comprises a basic driving structure and a drilling structure, the basic driving structure comprises a tooth rotating supporting plate, a drilling gear, a gear shaft collar, a driving gear and a lifting gear, the tooth rotating supporting plate is fixedly connected to the upper surface of the underframe frame, the drilling gear is rotationally connected to the center of the top surface of the tooth rotating supporting plate, the gear shaft collar is fixedly connected to the inner wall of the shaft center of the drilling gear, the top surfaces of the front end and the rear end of the tooth rotating supporting plate are fixedly connected with fixing plates, the driving gear is rotationally connected with the top surface of the rear end fixing plate, the lifting gear is rotationally connected with the top surface of the front end fixing plate, the drilling structure is positioned above the basic driving structure, the drilling structure comprises a rotary drum slide bar, a pressing rotary drum, a lifting shaft rod, a linkage short rod, a side pressing sliding block, a positioning sliding rod and guide groove short rods, wherein the rotary drum slide bar is annularly distributed on the central inner wall of a gear shaft collar, the pressing rotary drum is slidably connected to the central inner wall of the gear shaft collar of the rotary drum slide bar, the lifting shaft rod is fixedly connected to the top surface of a lifting gear, the linkage short rod is fixedly connected to the rear side surface of the top end of the lifting shaft rod, the side pressing sliding block is slidably connected to the outer side of the rear end of the linkage short rod, the positioning sliding rod is slidably connected to the inner side of the top end of the lifting shaft rod, the bottom surface of a rear end fixing plate is downwards extended to form an annular structure, the annular structure is rotatably connected with the lifting gear, and two guide groove short rods are fixedly connected to the inner wall of the annular structure;
According to the technical scheme, the gear shaft collar is rotationally connected with the rotary tooth supporting plate, the driving gear and the lifting gear are both in meshed connection with the drilling gear, the rotary drum slide bar is in sliding connection with the pressurizing rotary drum, the positioning slide bar is fixedly connected with the top surface of the inner wall of the drainage end shell, a cavity which exists after the soil ramming layer is decomposed, rainwater can penetrate downwards into the cavity through the soil ramming layer, so that soil around the cavity is dissolved to expand the cavity, the subsequent house foundation structure settlement is avoided to cause wall cracking, water in the lower cavity of the foundation needs to be pumped, the supporting strength of ramming soil below the foundation is increased in a grouting mode, settlement is avoided, for a relatively narrow foundation pit, construction workers are difficult to enter into the foundation pit for drilling and subsequent water pumping operation, before working, a support frame is required to be placed above a foundation pit protecting wall, the support frame is turned over to two sides through extension frame rods, the support foot support at two sides of the foundation protecting wall, if the width dimension of the foundation pit is smaller than the length of the support frame seat, the extension frame rod is smaller than, the extension frame rod is required, the motor is required to be driven to be in a mode of adjusting the width dimension through the extension frame, the ring gear is required to be driven to be in a hole drilling device to be meshed with the lifting gear, the drilling device is required to be driven to be in a drilling device to be meshed with the top of the drilling gear, and the drilling device is required to be driven to be meshed with the lifting gear is driven to be driven to rotate through the lifting gear to the top of the lifting gear to rotate. Therefore, the lifting shaft rod slidingly bound by the positioning slide rod moves upwards or downwards under the action of the short rod of the guide groove, the lifting shaft rod moves through the linkage short rod and the edge pressing slide block, and the edge pressing slide block is matched with the top structure of the pressing rotary drum, so that the pressing rotary drum moves upwards or downwards while rotating.
According to the technical scheme, the drilling assembly comprises an extension screw, a communication inner pipe, a drilling screw, a pressing top ring, a drill inner pipe, a liquid suction side hole and a side cone head, wherein the extension screw is in threaded connection with the bottom end of the pressing rotary drum, the communication inner pipe is fixedly connected with the inside of the extension screw, the drilling screw is in threaded connection with the bottom end of the extension screw, the pressing top ring is fixedly connected with the inner wall of the drilling screw, the pressing top ring is in sliding connection with the inner wall of the drilling screw, the drill inner pipe is fixedly connected with the bottom end of the pressing top ring, the liquid suction side hole is formed in the outer side surface of the bottom end of the drill inner pipe, the side cone head is fixedly connected with the bottom end of the drilling screw, the inner bottom end of the drill inner pipe is of a solid structure, the drill inner pipe is of a hollow structure, the drill inner pipe penetrates out the bottom surface from the top surface of the side cone head, the outside of the drill bit inner tube is provided with a spring, two ends of the spring are fixedly connected with a pressed top ring and the outer wall of the drill bit inner tube respectively, the inside of the drilling screw is fixedly connected with a communicating inner tube which is in sliding sleeve joint with the drill bit inner tube, when the pressing rotary drum rotates to drive the extending screw and the drilling screw connected with the bottom end to rotate, the extending screw contacts the bottom surface of the foundation pit retaining wall groove through the downward movement of the pressing rotary drum, when the drilling depth of the drilling screw does not reach the expected depth, the extending screw is detached from the pressing rotary drum, a new extending screw is added between the extending screw and the pressing rotary drum to increase the drilling depth, meanwhile, when the bottom end of the drill bit inner tube contacts the bottom surface of the foundation pit retaining wall and the pressing rotary drum presses downwards, the pressed top ring at the top end of the drill bit inner tube gradually approaches the pressing top ring and stretches the spring, until the pressurized top ring is attached to the pressurized top ring, thereby avoiding that surrounding soil or stones enter into the liquid-pumping side hole, in the drilling process of the drilling screw, the inner pipe of the drill bit keeps the state until the inner pipe of the drill bit reaches the cavity below the foundation pit retaining wall, at the moment, the tail end of the inner pipe of the drill bit is not blocked by surrounding soil, the spring recovers elasticity to enable the inner pipe of the drill bit to pop out from the bottom side of the side cone head, at the moment, the cavity is communicated with the communicating inner pipe through the liquid-pumping side hole on the side surface of the inner pipe of the drill bit, so that water accumulated in the cavity is directly pumped away through the liquid-pumping side hole on the side surface of the inner pipe of the drill bit, a plurality of steps of removing the drilling device and inserting a pipeline to arrange a water pump and supplying power are saved, and the construction efficiency can be improved.
According to the technical scheme, the right side surface of the drainage end shell is provided with a drainage mechanism, the drainage mechanism comprises a pipe collecting end shell, a collecting pipe rotary drum, a lifting connecting pipe, a conduit groove end, a peristaltic handle, a pipe rotating joint and a peristaltic pipe, the collecting pipe end shell is fixedly connected with the inner side of the drainage end shell, the collecting pipe rotary drum is rotationally connected with the inner side of the collecting pipe end shell, the lifting connecting pipe is wound on the outer side of the collecting pipe rotary drum, the conduit groove end is fixedly connected with the inner wall of the drainage end shell, one end of the lifting connecting pipe penetrates through the conduit groove end, the peristaltic handle is fixedly connected with the upper surface of a drilling gear, the pipe rotating joint is fixedly connected with the other end of the lifting connecting pipe, one end of the peristaltic pipe is fixedly connected with the bottom surface of the pipe rotating joint, the top surface of the inner part of the pressing rotary drum is fixedly connected with a rotary joint, and the top end of the rotary joint is rotationally connected with the tail end of the lifting connecting pipe, the top end of the pipe rotating movable joint is connected with an inclined fixing rod, the inclined fixing rod is fixedly connected with the top end of the pipe receiving shell, the peristaltic pipe bypasses the outer side of the peristaltic handle, the other end of the peristaltic pipe extends out of the rear side of the water discharging end shell, the front end and the rear end of the underframe frame are fixedly connected with hinged support seats, the top surfaces of the left end and the right end of the hinged support seats are respectively provided with a push rod sliding groove, the inner side of the push rod sliding groove is slidably connected with a shaft penetrating inserting rod, the inside of the extending frame rod is provided with a rod penetrating hole, the pressure-applying rotary drum pulls the lifting connecting pipe to move downwards through a rotary joint, so that the other end of the lifting connecting pipe slides along the pipe groove end and pulls the pipe receiving rotary drum to rotate so as to extend the lifting connecting pipe, the lifting connecting pipe coiled on the outer side of the pipe receiving rotary drum is communicated with a communicating inner pipe inside the extending screw through the rotary joint, and the other end of the lifting connecting pipe is communicated with the peristaltic pipe through the pipe rotating movable joint, finally, the water is discharged out of the water discharge end shell through the tail end of the peristaltic tube, the pipeline can be retracted according to the movement of the lifting connecting tube through the threaded coiling structure, water in the peristaltic tube can be prevented from flowing back through the spiral structure, meanwhile, when the inner tube of the drill bit is contracted inside the drilling screw, the liquid suction side hole on the side face of the inner tube of the drill bit is positioned inside the drilling screw, the pressing rotating tube drives to rotate through the drilling gear, the peristaltic tube is extruded by the peristaltic handle on the drilling gear in the rotating process, the lifting connecting tube and the connected inner air of the communicating tube are pumped out, negative pressure exists inside the communicating tube, when the bottom end of the inner tube of the drill bit is pulled out downwards from the bottom of the drilling screw, the negative pressure inside the communicating tube sucks water through the liquid suction side hole on the side face of the inner tube of the drill bit, air contained in the liquid is reduced, and the liquid suction rate is improved.
The application method of the miniature pumping device for the underground water of the narrow foundation pit comprises the following steps:
S1: before the construction worker is difficult to enter the foundation pit to perform drilling and subsequent water pumping operations, the hinge bracket seat is required to be placed above the foundation pit retaining wall, the support frame is turned and unfolded to two sides through the extension frame rods, the shaft penetrating inserted rod is pushed, the support foot rods at the bottom of the support frame are supported on the surface of the soil ramming layer at two sides of the foundation pit retaining wall, and if the width dimension of the foundation pit is smaller than the length of the hinge bracket seat, the extension frame rods are not required to be unfolded;
S2: the lifting gear rotates to drive a guide groove short rod at the inner side of the top annular structure to be in contact with the inner side of a guide spiral groove at the outer side of the lifting shaft rod, so that the lifting shaft rod moves through the linkage short rod and the edge pressing sliding block, the edge pressing sliding block is matched with the top structure of the pressing rotary drum, and therefore the pressing rotary drum moves upwards or downwards while rotating;
S3: when the bottom end of the inner pipe of the drill bit is in contact with the bottom surface of the foundation pit retaining wall and is pressed downwards through the pressing rotary drum until the inner pipe of the drill bit reaches a cavity below the foundation pit retaining wall, at the moment, the tail end of the inner pipe of the drill bit is not blocked by surrounding soil, the spring recovers elasticity to enable the inner pipe of the drill bit to pop out from the bottom side of the side cone, at the moment, the cavity is communicated with the communicating inner pipe through the liquid-pumping side hole on the side surface of the inner pipe of the drill bit, and therefore water accumulated in the cavity is directly pumped out through the liquid-pumping side hole on the side surface of the inner pipe of the drill bit;
S4: when the drilling depth of the drilling screw does not reach the expected depth, the extending screw is detached from the pressing rotary drum, and a new extending screw is arranged between the extending screw and the pressing rotary drum to increase the drilling depth.
S5: the peristaltic tube is extruded in the rotation process of the peristaltic handle on the drilling gear, the lifting connecting tube and the connected air inside the communicating inner tube are pumped out, negative pressure exists inside the communicating inner tube, when the bottom end of the inner tube of the drill bit protrudes downwards from the bottom of the drilling screw rod, the negative pressure inside the communicating inner tube sucks water through the liquid suction side hole on the side surface of the inner tube of the drill bit, and the air contained in the liquid is reduced.
S6: the lifting connecting pipe coiled on the outer side of the collecting pipe rotary drum is communicated with the inner communicating pipe in the extension screw rod through a rotary joint, the other end of the lifting connecting pipe is communicated with the peristaltic pipe through a pipe rotating joint, and finally water is discharged out of the water discharge end shell through the tail end of the peristaltic pipe.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, through the arrangement of the rotating tooth supporting plate, the drilling gear, the gear collar, the rotary drum slide bar, the pressing rotary drum, the driving gear, the fixing plate, the lifting gear, the lifting shaft lever, the linkage short rod, the edge pressing sliding block, the positioning sliding rod, the guide groove short rod and the driving motor, the supporting foot rod at the bottom of the supporting frame is supported on the surface of the soil ramming layer at two sides of the foundation pit retaining wall, if the width dimension of the foundation pit is smaller than the length of the hinge supporting frame seat, the extending hack lever is not required to be unfolded, and the structure can be adjusted according to the width dimension of the foundation pit, so that the device is suitable for a narrow foundation pit and a wider foundation pit, and simultaneously, the pressing rotary drum can move upwards or downwards while rotating, the drilling efficiency can be improved by simulating the downward pressing pressure of hands of workers when the pressing rotary drum moves downwards in the rotating process, and the joint of the pressing rotary drum and the drilling assembly can be pulled upwards when the pressing rotary drum moves upwards in the rotating process so as to be replaced or detached;
according to the invention, the extension screw rod, the communicating inner pipe, the drilling screw rod, the pressing top ring, the drill bit inner pipe, the liquid suction side hole and the side cone head are arranged, the extension screw rod is detached from the pressing rotary drum, a new extension screw rod is added between the extension screw rod and the pressing rotary drum to increase the drilling depth, meanwhile, the tail end of the drill bit inner pipe is not blocked by surrounding soil, the spring recovers elasticity to enable the drill bit inner pipe to pop out from the bottom side of the side cone head, at the moment, the cavity is communicated with the communicating inner pipe through the liquid suction side hole on the side surface of the drill bit inner pipe, so that water accumulated in the cavity is directly pumped away through the liquid suction side hole on the side surface of the drill bit inner pipe, a plurality of steps of removing the drilling device and inserting a pipeline to arrange a water pump and supplying power are saved, and the construction efficiency can be improved;
According to the invention, the pipe collecting end shell, the header rotary drum, the lifting connecting pipe, the conduit groove end, the peristaltic handle, the pipe rotating movable joint and the peristaltic pipe are arranged, water is discharged to the outer side of the water draining end shell through the tail end of the peristaltic pipe, the water in the peristaltic pipe can be prevented from flowing back through the spiral structure while the pipeline is retracted according to the movement of the pressure applying rotary drum through the threaded coiling structure of the lifting connecting pipe, meanwhile, the air in the lifting connecting pipe and the connected communicating inner pipe is pumped out, so that negative pressure exists in the communicating inner pipe, when the bottom end of the drill bit inner pipe protrudes downwards from the bottom of the drilling screw, the negative pressure in the communicating inner pipe sucks water through the liquid pumping side hole on the side surface of the drill bit inner pipe, the air in the liquid pumping is reduced, and the liquid pumping speed is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of the overall front perspective of the present invention;
FIG. 2 is a schematic view of the internal structure of the drain end housing of the present invention;
FIG. 3 is a schematic view of the structure of the borehole drainage mechanism of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;
FIG. 5 is a schematic view of the structure of the drilling assembly of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5B according to the present invention;
FIG. 7 is a schematic view of the structure of the drainage mechanism of the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7C in accordance with the present invention;
FIG. 9 is a schematic cross-sectional view of a hinge bracket seat according to the present invention;
In the figure: 1. a soil ramming layer; 2. a foundation pit retaining wall; 3. a support frame; 4. a hinge support stand; 41. a push rod chute; 42. penetrating the shaft inserted bar; 43. a rod penetrating hole; 5. a chassis frame; 6. a drain end housing; 7. a drilling mechanism; 71. a rotating tooth supporting plate; 72. drilling a gear; 73. a gear collar; 74. a drum slide; 75. a pressing rotary drum; 76. a drive gear; 77. a firmware plate; 78. a lifting gear; 781. a lifting shaft lever; 782. a linkage short rod; 783. edge pressing sliding blocks; 784. positioning a slide bar; 785. a guide slot short bar; 79. a driving motor; 8. a drilling assembly; 81. an extension screw; 82. the inner tube is communicated; 83. drilling a screw; 84. pressing a top ring; 85. a pressurized top ring; 86. a drill inner tube; 87. a liquid suction side hole; 88. a side cone head; 9. a drainage mechanism; 91. a tube-collecting end shell; 92. a manifold drum; 93. lifting connecting pipes; 94. a conduit slot end; 95. a peristaltic handle; 96. a pipe rotating movable joint; 97. a peristaltic tube; 10. an extension hack lever; 11. and supporting the leg bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, an embodiment of the invention is a miniature pumping device for groundwater in a narrow foundation pit, which comprises a soil ramming layer 1, wherein a foundation pit retaining wall 2 is arranged on the inner side of the soil ramming layer 1, a supporting frame 3 is arranged above the foundation pit retaining wall 2, a supporting leg rod 11 for supporting the supporting frame 3 is fixedly connected to the bottom surface of the supporting frame 3, an extension hack lever 10 for adjusting and stretching according to the width of the foundation pit is fixedly connected to the inner part of the front end and the rear end of the supporting frame 3, a underframe frame 5 is fixedly connected between the two ends of the front part of the supporting frame 3, a drainage end shell 6 is arranged above the underframe frame 5, push rod sliding grooves 41 are formed on the top surfaces of the left end and the right end of a hinge support frame seat 4, a penetrating shaft inserting rod 42 is slidingly connected to the inner side of the push rod sliding groove 41, and a penetrating rod hole 43 is formed in the extension hack lever 10;
The inside of the drainage end housing 6 is provided with a drilling mechanism 7, the drilling mechanism 7 comprises a basic driving structure and a drilling structure, the basic driving structure comprises a rotary tooth supporting plate 71, a drilling gear 72, a gear shaft ring 73, a driving gear 76 and a lifting gear 78, the rotary tooth supporting plate 71 is fixedly connected to the upper surface of the underframe frame 5, the drilling gear 72 is rotationally connected to the center of the top surface of the rotary tooth supporting plate 71, the gear shaft ring 73 is fixedly connected to the center inner wall of the drilling gear 72, the top surfaces of the front end and the rear end of the rotary tooth supporting plate 71 are fixedly connected with fixing plates 77, the driving gear 76 is rotationally connected with the top surface of the rear end fixing plate 77, the lifting gear 78 is rotationally connected with the top surface of the front end fixing plate 77, the drilling structure is positioned above the basic driving structure, the drilling structure comprises a rotary drum slide bar 74, a pressing rotary drum 75, a lifting shaft 781, a linkage short bar 783, a positioning slide bar 784 and a guide groove short bar 785, the annular array of the rotary drum 74 is distributed on the center inner wall of the rotary tooth supporting plate 71, the pressing rotary drum 75 is slidingly connected to the center inner wall of the gear shaft ring 73, the lifting short bar 781 is fixedly connected to the top surface of the lifting gear 78, the annular slide bar 783 is fixedly connected to the inner wall 783 of the annular slide bar 784 which is fixedly connected to the top surface of the annular slide bar 783, and the inner side of the annular slide bar 783 is fixedly connected to the top surface of the lifting structure, and the upper end of the lifting structure is fixedly connected to the bottom surface of the annular slide bar 783;
The gear collar 73 is rotationally connected with the gear rotating support plate 71, the driving gear 76 and the lifting gear 78 are both meshed with the drilling gear 72, the rotary drum slide bar 74 is in sliding connection with the pressing rotary drum 75, the positioning slide bar 784 is fixedly connected with the top surface of the inner wall of the drainage end shell 6, a cavity which exists after animal and plant is decomposed exists at the bottom of the soil compacting layer 1, rainwater can penetrate downwards into the cavity through the soil compacting layer 1, so that soil around the cavity dissolves rainwater to expand the cavity, the wall body is cracked due to the fact that the cavity is caused by the fact that a subsequent house foundation structure is settled, water in the cavity below the foundation needs to be pumped, the supporting strength of rammed soil below the foundation is increased in a grouting mode, settlement is avoided, and for a narrow foundation pit, construction workers hardly enter the foundation pit to drill and subsequently pump water, before working, the hinge support frame seat 4 needs to be placed above the retaining wall 2, if the width dimension of the foundation pit is smaller than the length of the hinge bracket seat 4, the extension bracket rod 10 is not required to be unfolded, the structure can be unfolded to be adjusted according to the width dimension of the foundation pit, so that the device is suitable for narrow foundation pits and wider foundation pits, meanwhile, before use, the drilling assembly 8 is required to be installed below the pressing rotary drum 75, the driving motor 79 drives the driving gear 76 to rotate together with the meshed drilling gear 72, the drilling gear 72 drives the lifting gear 78 to rotate, when the drilling gear 72 rotates, the rotary drum slide bar 74 at the inner side of the gear collar 73 drives the pressing rotary drum 75 to rotate, in the process, the lifting gear 78 rotates to drive the guide groove short bar 785 at the inner side of the top annular structure to be contacted with the inner side of the guide screw groove at the outer side of the lifting shaft 781, so that the lifting shaft 781 slidingly bound by the positioning slide bar 784 moves upwards or downwards under the motion of the guide groove short bar 785, the lifting shaft lever 781 moves through the linkage short rod 782 and the edge pressing sliding block 783, and the edge pressing sliding block 783 is matched with the top structure of the pressing rotary drum 75, so that the pressing rotary drum 75 moves upwards or downwards while rotating, when the pressing rotary drum 75 moves downwards in the rotating process, the pressure of downward pressing by hands of a worker can be simulated to improve the drilling efficiency, and when the pressing rotary drum 75 moves upwards in the rotating process, the joint of the pressing rotary drum 75 and the drilling assembly 8 can be pulled upwards for replacement or disassembly.
The working principle is that the hinge bracket seat 4 is placed above the foundation pit retaining wall 2, the supporting frame 3 is turned and unfolded to two sides through the extension frame rod 10, the penetrating shaft inserting rod 42 is pushed, the penetrating shaft inserting rod 42 penetrates through the hinge bracket seat 4 and is inserted into the penetrating rod hole 43 formed in the extension frame rod 10 to position the hinge bracket seat 4 and the extension frame rod 10, the supporting leg rod 11 at the bottom of the supporting frame 3 is supported on the surface of the soil ramming layer 1 at two sides of the foundation pit retaining wall 2, if the width dimension of the foundation pit is smaller than the length of the hinge bracket seat 4, the extension frame rod 10 is not required to be unfolded, and the structure can be adjusted according to the width dimension of the foundation pit, so that the device is suitable for narrow foundation pits and wide foundation pits, meanwhile, before use, the drilling assembly 8 is required to be installed below the pressing rotary drum 75, the driving motor 79 drives the driving gear 76 to rotate together with the meshed drilling gear 72, while the drilling gear 72 drives the lifting gear 78 to rotate, when the drilling gear 72 rotates, the pressing drum 75 is driven to rotate by the drum slide 74 at the inner side of the gear collar 73, in the process, the lifting gear 78 rotates to drive the guide groove short rod 785 at the inner side of the top annular structure to be in contact with the inner side of the guide screw groove at the outer side of the lifting shaft 781, so that the lifting shaft 781 slidingly restrained by the positioning slide rod 784 moves upwards or downwards under the action of the guide groove short rod 785, the lifting shaft 781 moves through the linkage short rod 782 and the edge pressing slide block 783, and because the edge pressing slide block 783 is matched with the top structure of the pressing drum 75, the pressing drum 75 moves upwards or downwards while rotating, when the pressing drum 75 moves downwards in the rotating process, the pressure of downward pressing of hands of workers can be simulated to improve the drilling efficiency, the pressure cylinder 75 can be pulled up at the junction with the drilling assembly 8 for replacement or removal.
Referring to fig. 1-9, in another embodiment of the present invention, the drilling assembly 8 includes an extension screw 81, a communicating inner tube 82, a drilling screw 83, a pressing top ring 84, a pressing top ring 85, a drill inner tube 86, a liquid suction side hole 87, and a side cone 88, the extension screw 81 is screwed on the bottom end of the pressing drum 75, the communicating inner tube 82 is fixedly connected inside the extension screw 81, the drilling screw 83 is screwed on the bottom end of the extension screw 81, the pressing top ring 84 is fixedly connected on the inner wall of the drilling screw 83, the pressing top ring 85 is slidingly connected on the inner wall of the drilling screw 83, the drill inner tube 86 is fixedly connected on the bottom end of the pressing top ring 85, the liquid suction side hole 87 is opened on the outer side surface of the bottom end of the drill inner tube 86, the side cone 88 is fixedly connected on the bottom end of the drilling screw 83, the inner bottom end of the drill inner tube 86 is of a solid structure, the upper end of the inner part of the drill bit inner tube 86 is of a hollow structure, the drill bit inner tube 86 penetrates through the bottom surface from the top surface of the side conical head 88, a spring is arranged on the outer side of the drill bit inner tube 86, two ends of the spring are fixedly connected with the pressed top ring 85 and the outer wall of the drill bit inner tube 86 respectively, the inner side of the drill bit inner tube 83 is fixedly connected with a communicating inner tube 82, the communicating inner tube 82 is in sliding sleeve joint with the drill bit inner tube 86, when the drilling depth of the drill bit inner tube 83 does not reach the expected depth, the depth of drilling is increased by detaching the extending screw 81 from the pressing rotary drum 75 and adding a new extending screw 81 between the extending screw 81 and the pressing rotary drum 75, in the drilling process of the drill bit inner tube 86 keeps the state until the drill bit inner tube 86 reaches the cavity below the foundation pit retaining wall 2, at the moment, the tail end of the drill bit inner tube 86 is not blocked by surrounding soil, the spring recovers elasticity to enable the drill bit inner tube 86 to pop out from the bottom side of the side cone head 88, at the moment, the cavity is communicated with the communicating inner tube 82 through the liquid suction side hole 87 on the side surface of the drill bit inner tube 86, so that water accumulated in the cavity is directly pumped away through the liquid suction side hole 87 on the side surface of the drill bit inner tube 86, a plurality of steps of removing a drilling device and inserting a pipeline to arrange a water pump and supplying power are saved, and the construction efficiency can be improved.
The right side surface of the drainage end shell 6 is provided with a drainage mechanism 9, the drainage mechanism 9 comprises a pipe collecting end shell 91, a header rotary drum 92, a lifting connecting pipe 93, a conduit groove end 94, a peristaltic handle 95, a pipe rotating joint 96 and a peristaltic pipe 97, the pipe collecting end shell 91 is fixedly connected with the inner side of the drainage end shell 6, the header rotary drum 92 is rotationally connected with the inner side of the pipe collecting end shell 91, the lifting connecting pipe 93 is wound on the outer side of the header rotary drum 92, the conduit groove end 94 is fixedly connected with the inner wall of the drainage end shell 6, one end of the lifting connecting pipe 93 penetrates through the interior of the conduit groove end 94, the peristaltic handle 95 is fixedly connected with the upper surface of a drilling gear 72, the pipe rotating joint 96 is fixedly connected with the other end of the lifting connecting pipe 93, one end of the peristaltic pipe 97 is fixedly connected with the bottom surface of the pipe rotating joint 96, the top surface inside the pressure rotary drum 75 is fixedly connected with a rotary joint, the top end of the rotary joint is rotationally connected with the tail end of the lifting connecting pipe 93, the top end of the rotary pipe movable joint 96 is connected with an inclined fixing rod, the inclined fixing rod is fixedly connected with the top end of the pipe collecting end shell 91, the peristaltic pipe 97 bypasses the outer side of the peristaltic handle 95, the other end of the peristaltic pipe 97 extends out of the rear side surface of the water draining end shell 6, the front end and the rear end of the underframe frame 5 are fixedly connected with hinged support frames 4, the top surfaces of the left end and the right end of the hinged support frames 4 are respectively provided with a push rod chute 41, the inner side of the push rod chute 41 is slidably connected with a penetrating shaft inserting rod 42, the inside of the extending hack lever 10 is provided with a penetrating rod hole 43, the spiral coiled structure can prevent water in the peristaltic pipe 97 from flowing back through a spiral structure when the lifting connecting pipe 93 moves to collect a pipeline according to the pressing rotary drum 75, meanwhile, when the drill bit inner pipe 86 is contracted inside the drilling screw 83, and the liquid pumping side holes 87 on the side surface of the drill bit inner pipe 86 are positioned inside the drilling screw 83, peristaltic tube 97 is extruded in the rotation process of peristaltic handle 95 on drilling gear 72, and lifting connecting tube 93 and the connected air in inner communicating tube 82 are extracted, so that negative pressure exists in inner communicating tube 82, water is sucked into inner communicating tube 82 through liquid suction side hole 87 on the side face of inner drill bit tube 86, air in the liquid is reduced, and the liquid suction rate is improved.
The drilling device comprises a working principle that when a pressure rotating drum 75 rotates to drive an extension screw 81 and a drilling screw 83 which are connected with the bottom end to rotate, the extension screw 81 contacts with the bottom surface in a groove of a foundation pit retaining wall 2 through downward movement of the pressure rotating drum 75, when the drilling depth of the drilling screw 83 does not reach the expected depth, the drilling depth is increased by detaching the extension screw 81 from the pressure rotating drum 75 and installing a section of new extension screw 81 between the section of extension screw 81 and the pressure rotating drum 75, meanwhile, when the bottom end of a drill bit inner tube 86 contacts with the bottom surface of the foundation pit retaining wall 2 and is pressed downwards through the pressure rotating drum 75, a pressure-receiving top ring 85 at the top end of the drill bit inner tube 86 gradually approaches to the pressure-receiving top ring 84 and stretches a spring until the pressure-receiving top ring 85 is attached to the pressure-receiving top ring 84, so that surrounding soil or stones are prevented from entering into a liquid-pumping side hole 87, and in the drilling process of the drilling screw 83, until the drill bit inner tube 86 reaches a cavity below the foundation pit retaining wall 2, the tail end of the drill bit inner tube 86 is not blocked by surrounding soil, and the spring recovers elasticity, the drill bit inner tube 86 ejects from the bottom side of the side cone 88, the drill bit inner tube 86 ejects the side hole 86 through the cavity liquid-receiving hole 86, and the liquid is directly connected with the side surface of the drill bit inner tube 87, and the water pump is pumped by the pump, and the side surface of the pump is arranged;
At this time, the pressure-exerting drum 75 pulls the lifting connecting tube 93 to move downwards through the rotary joint, thereby the other end of the lifting connecting tube 93 slides along the conduit groove end 94 and pulls the header drum 92 to rotate so as to prolong the lifting connecting tube 93, the lifting connecting tube 93 coiled on the outer side of the header drum 92 is communicated with the communicating inner tube 82 inside the extension screw 81 through the rotary joint, the other end of the lifting connecting tube 93 is communicated with the peristaltic tube 97 through the rotary joint, finally, water is discharged out of the outer side of the water discharge end shell 6 through the tail end of the peristaltic tube 97, the coiled structure of the lifting connecting tube 93 can prevent water in the peristaltic tube 97 from flowing back through the spiral structure while the pressure-exerting drum 75 moves to retract the pipeline, simultaneously, when the drill bit inner tube 86 is contracted inside the drilling screw 83, the liquid-sucking side hole 87 on the side surface of the drill bit inner tube 86 is positioned inside the drilling screw 83, at this moment, the pressure-exerting drum 75 is driven to rotate through the drilling gear 72, the peristaltic stem 95 is extruded in the rotating process on the drilling gear 72, the inner air inside the lifting connecting tube 93 and the communicating inner tube 82 is finally, negative pressure exists inside the communicating inner tube 86, when negative pressure is sucked from the bottom end of the drill bit inner tube 86, the water is sucked from the side hole of the drilling hole 86, and the water is sucked from the side of the drilling hole.
The application method of the miniature pumping device for the underground water of the narrow foundation pit comprises the following steps:
S1: before the construction worker is difficult to enter the foundation pit to perform drilling and subsequent water pumping operations, the hinge support frame seat 4 is required to be placed above the foundation pit retaining wall 2, the support frame 3 is turned and unfolded to two sides through the extension frame rods 10, the shaft penetrating inserted rods 42 are pushed, the support leg rods 11 at the bottom of the support frame 3 are supported on the surface of the soil ramming layer 1 at two sides of the foundation pit retaining wall 2, and if the width dimension of the foundation pit is smaller than the length of the hinge support frame seat 4, the extension frame rods 10 are not required to be unfolded;
s2: the lifting gear 78 rotates to drive the guide groove short rod 785 at the inner side of the top annular structure to contact with the inner side of the guide screw groove at the outer side of the lifting shaft 781, so that the lifting shaft 781 moves through the linkage short rod 782 and the edge pressing sliding block 783, the edge pressing sliding block 783 is matched with the top structure of the pressing rotary drum 75, so that the pressing rotary drum 75 moves upwards or downwards while rotating, when the pressing rotary drum 75 moves downwards in the rotating process, the drilling efficiency can be improved by simulating the downward pressing pressure of hands of a worker, and when the pressing rotary drum 75 moves upwards in the rotating process, the joint of the pressing rotary drum 75 and the drilling assembly 8 can be pulled upwards;
s3: when the bottom end of the inner drill pipe 86 contacts the bottom surface of the foundation pit retaining wall 2 and is pressed downwards through the pressing rotary drum 75 until the inner drill pipe 86 reaches a cavity below the foundation pit retaining wall 2, at the moment, the tail end of the inner drill pipe 86 is not blocked by surrounding soil, the spring recovers elasticity to enable the inner drill pipe 86 to pop out from the bottom side of the side cone 88, at the moment, the cavity is communicated with the communicating inner pipe 82 through the liquid-pumping side hole 87 at the side surface of the inner drill pipe 86, so that water accumulated in the cavity is directly pumped out through the liquid-pumping side hole 87 at the side surface of the inner drill pipe 86;
S4: when the pressing rotary drum 75 rotates to drive the extension screw 81 and the drilling screw 83 which are connected with the bottom end to rotate, and the pressing rotary drum 75 moves downwards to enable the extension screw 81 to contact with the bottom surface in the groove of the foundation pit retaining wall 2 to drill, and when the drilling depth of the drilling screw 83 does not reach the expected depth, the extension screw 81 is detached from the pressing rotary drum 75, and a new section of extension screw 81 is installed between the section of extension screw 81 and the pressing rotary drum 75 to increase the drilling depth;
S5: the peristaltic stem 95 on the drilling gear 72 is extruded to squeeze the peristaltic tube 97 in the rotating process, the lifting connecting tube 93 and the air in the connected communicating inner tube 82 are extracted, negative pressure exists in the communicating inner tube 82, when the bottom end of the drill bit inner tube 86 protrudes downwards from the bottom of the drilling screw 83, the negative pressure in the communicating inner tube 82 sucks water through the liquid extraction side hole 87 on the side surface of the drill bit inner tube 86, and the air in the extracted liquid is reduced;
S6: the lifting connecting pipe 93 coiled outside the header drum 92 is communicated with the inner communicating pipe 82 inside the extension screw 81 through a rotary joint, while the other end of the lifting connecting pipe 93 is communicated with the peristaltic pipe 97 through a pipe rotating joint 96, and finally the water is discharged outside the water discharge end shell 6 through the tail end of the peristaltic pipe 97.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a miniature pumping device of narrow foundation ditch groundwater, includes soil rammer layer (1), its characterized in that: the soil compactor is characterized in that a foundation pit retaining wall (2) is arranged on the inner side of the soil compactor layer (1), a support frame (3) is arranged above the foundation pit retaining wall (2), a supporting foot rod (11) used for supporting the support frame (3) is fixedly connected to the bottom surface of the support frame (3), extension hack levers (10) used for adjusting stretching are slidingly connected to the inner parts of the front end and the rear end of the support frame (3), an underframe frame (5) is fixedly connected between the two ends of the front part of the support frame (3), a drainage end shell (6) is arranged above the underframe frame (5), and a drilling assembly (8) is arranged below the drainage end shell (6);
The inside of drainage end shell (6) is provided with drilling mechanism (7), drilling mechanism (7) include basic drive structure and drilling structure, basic drive structure includes commentaries on classics tooth layer board (71), drilling gear (72), gear collar (73), drive gear (76), elevating gear (78), commentaries on classics tooth layer board (71) fixed connection is in the upper surface of chassis frame (5), drilling gear (72) rotate and connect in the top surface center department of commentaries on classics tooth layer board (71), gear collar (73) fixed connection is at the axle center inner wall of drilling gear (72), both ends top surface around commentaries on classics tooth layer board (71) all are fixedly connected with firmware board (77), drive gear (76) are connected with the top surface rotation of rear end solid board (77), elevating gear (78) are connected with the top surface rotation of front end solid board (77), drilling structure is located basic drive structure's top, drilling structure includes rotary drum slider (74), rotary drum (75), elevating gear (781), short bar (783), short bar (784), the inner wall (73) of the rotary drum slider (74) is connected with the inner wall (73) of the annular slide bar (73), the lifting shaft rod (781) is fixedly connected to the top surface of the shaft center of the lifting gear (78), the linkage short rod (782) is fixedly connected to the rear side surface of the top end of the lifting shaft rod (781), the edge pressing sliding block (783) is slidably connected to the outer side of the rear end of the linkage short rod (782), the positioning sliding rod (784) is slidably connected to the inner side of the top end of the lifting shaft rod (781), the top surface of the lifting gear (78) extends upwards to form an annular structure, the annular structure is rotatably connected with the fixing plate (77), two guide groove short rods (785) are fixedly connected to the inner wall of the annular structure, and a driving motor (79) is arranged at the top end of an output shaft of the driving gear (76);
The gear collar (73) is rotationally connected with the gear rotating support plate (71), the driving gear (76) and the lifting gear (78) are both in meshed connection with the drilling gear (72), the rotary drum sliding bar (74) is in sliding connection with the pressing rotary drum (75), the positioning sliding bar (784) is fixedly connected with the top surface of the inner wall of the drainage end shell (6), the outer side surface of the lifting shaft lever (781) is provided with a guide screw groove, the guide screw groove is in sliding connection with the guide groove short bar (785), and the driving motor (79) is fixedly connected with the firmware plate (77);
The drilling assembly (8) comprises an extension screw (81), a communicating inner pipe (82), a drilling screw (83), a pressure-applying top ring (84), a pressure-applying top ring (85), a drill inner pipe (86), a liquid-pumping side hole (87) and a side cone head (88), wherein the extension screw (81) is in threaded connection with the bottom end of the pressure-applying rotary drum (75), the communicating inner pipe (82) is fixedly connected with the inside of the extension screw (81), the drilling screw (83) is in threaded connection with the bottom end of the extension screw (81), and the pressure-applying top ring (84) is fixedly connected with the inner wall of the drilling screw (83);
the pressurized top ring (85) is slidably connected to the inner wall of the drilling screw (83), the drill bit inner pipe (86) is fixedly connected to the bottom end of the pressurized top ring (85), the liquid suction side hole (87) is formed in the outer side surface of the bottom end of the drill bit inner pipe (86), and the side cone head (88) is fixedly connected to the bottom end of the drilling screw (83);
the inner bottom end of the drill bit inner tube (86) is of a solid structure, the inner upper end of the drill bit inner tube (86) is of a hollow structure, the drill bit inner tube (86) penetrates out of the bottom surface from the top surface of the side cone head (88), a spring is arranged on the outer side of the drill bit inner tube (86), two ends of the spring are fixedly connected with a pressed top ring (85) and the outer wall of the drill bit inner tube (86) respectively, the inner side of the drilling screw (83) is fixedly connected with a communicating inner tube (82), and the communicating inner tube (82) is in sliding sleeve joint with the drill bit inner tube (86);
The right side of drainage end shell (6) is provided with drainage mechanism (9), drainage mechanism (9) are including receipts pipe end shell (91), collector drum (92), lift connecting pipe (93), pipe groove end (94), peristaltic handle (95), change tub articulated (96), peristaltic tube (97), receipts pipe end shell (91) fixed connection is in the inboard of drainage end shell (6), collector drum (92) rotate to be connected in the inboard of receipts pipe end shell (91), lift connecting pipe (93) twine in the outside of collector drum (92), pipe groove end (94) fixed connection is at the inner wall of drainage end shell (6), and lift connecting pipe (93) wherein one end passes from pipe groove end (94) inside, change tub articulated (96) fixed connection is at the other end of lift connecting pipe (93);
The peristaltic handle (95) is fixedly connected to the upper surface of the drilling gear (72), one end of the peristaltic tube (97) is fixedly connected to the bottom surface of the rotary tube movable joint (96), and the other end of the peristaltic tube (97) extends out of the rear side surface of the drainage end shell (6);
the pressure applying rotary drum (75) is fixedly connected with a rotary joint on the inner top surface, the top end of the rotary joint is rotationally connected with the tail end of the lifting connecting pipe (93), the top end of the pipe rotating movable joint (96) is connected with an inclined fixing rod, the inclined fixing rod is fixedly connected with the top end of the pipe collecting end shell (91), and the peristaltic pipe (97) bypasses the outer side of the peristaltic handle (95).
2. The miniature pumping device for groundwater in a narrow foundation pit according to claim 1, wherein: the novel telescopic hinge is characterized in that hinge support bases (4) are fixedly connected to the front end and the rear end of the underframe frame (5), push rod sliding grooves (41) are formed in the top surfaces of the left end and the right end of the hinge support bases (4), shaft penetrating inserted bars (42) are connected to the inner sides of the push rod sliding grooves (41) in a sliding mode, and rod penetrating holes (43) are formed in the extending hack rods (10).
3. The application method of the miniature pumping device for the groundwater of the narrow foundation pit according to claim 2, wherein the application method is characterized in that: comprising the following steps:
S1: before working, a hinged support seat (4) is required to be placed above a foundation pit retaining wall (2), a support frame (3) is turned and unfolded to two sides through an extension frame rod (10), a penetrating shaft inserting rod (42) is pushed, support foot rods (11) at the bottom of the support frame (3) are supported on the surfaces of soil ramming layers (1) at two sides of the foundation pit retaining wall (2), and if the width dimension of the foundation pit is smaller than the length of the hinged support seat (4), the extension frame rod (10) is not required to be unfolded;
S2: the lifting gear (78) rotates to drive a guide groove short rod (785) at the inner side of the top annular structure to be in contact with the inner side of a guide screw groove at the outer side of the lifting shaft lever (781), so that the lifting shaft lever (781) moves through the linkage short rod (782) and the edge pressing sliding block (783), the edge pressing sliding block (783) is matched with the top structure of the pressing rotary drum (75), so that the pressing rotary drum (75) moves upwards or downwards while rotating, when the pressing rotary drum (75) moves downwards in the rotating process, the drilling efficiency can be improved by simulating the downward pressing pressure of hands of workers, and when the pressing rotary drum (75) moves upwards in the rotating process, the joint of the pressing rotary drum (75) and the drilling assembly (8) can be pulled upwards;
S3: the bottom end of the inner drill pipe (86) is contacted with the bottom surface of the foundation pit retaining wall (2) and is pressed downwards through the pressing rotary drum (75) until the inner drill pipe (86) reaches a cavity below the foundation pit retaining wall (2), at the moment, the tail end of the inner drill pipe (86) is not blocked by surrounding soil, the spring recovers elasticity to enable the inner drill pipe (86) to pop out from the bottom side of the side cone head (88), at the moment, the cavity is communicated with the communicating inner pipe (82) through a liquid suction side hole (87) at the side surface of the inner drill pipe (86), and therefore water accumulated in the cavity is directly pumped out through the liquid suction side hole (87) at the side surface of the inner drill pipe (86);
S4: when the pressing rotary drum (75) rotates to drive the extending screw (81) and the drilling screw (83) which are connected with the bottom end to rotate, and the extending screw (81) is used for drilling holes on the bottom surface in the groove of the foundation pit retaining wall (2) in a contact mode through the pressing rotary drum (75), and when the drilling depth of the drilling screw (83) is less than the expected depth, the extending screw (81) is detached from the pressing rotary drum (75), and a new extending screw (81) is installed between the extending screw (81) and the pressing rotary drum (75) to increase the drilling depth;
S5: the peristaltic handle (95) on the drilling gear (72) extrudes the peristaltic tube (97) in the rotating process, the lifting connecting tube (93) and the connected inner communicating tube (82) are pumped out, negative pressure exists in the inner communicating tube (82), when the bottom end of the inner communicating tube (86) of the drill bit protrudes downwards from the bottom of the drilling screw (83), the negative pressure in the inner communicating tube (82) sucks water through the liquid pumping side hole (87) on the side surface of the inner communicating tube (86) of the drill bit, and the air in the liquid is reduced;
S6: the lifting connecting pipe (93) coiled on the outer side of the collecting pipe rotary drum (92) is communicated with the inner communicating pipe (82) inside the extension screw (81) through a rotary joint, the other end of the lifting connecting pipe (93) is communicated with the peristaltic pipe (97) through a pipe rotating joint (96), and finally water is discharged out of the outer side of the water draining end shell (6) through the tail end of the peristaltic pipe (97).
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| CN117868188A (en) | 2024-04-12 |
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