CN113175300A - Observation hole drilling device for water pumping test - Google Patents
Observation hole drilling device for water pumping test Download PDFInfo
- Publication number
- CN113175300A CN113175300A CN202110445271.8A CN202110445271A CN113175300A CN 113175300 A CN113175300 A CN 113175300A CN 202110445271 A CN202110445271 A CN 202110445271A CN 113175300 A CN113175300 A CN 113175300A
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- Prior art keywords
- splash guard
- fixedly connected
- water pumping
- pumping test
- base
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- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 238000005086 pumping Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 33
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000007790 scraping Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims 2
- 239000004575 stone Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 239000002689 soil Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000010865 sewage Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides an observation hole drilling device for a water pumping test, and belongs to the technical field of water pumping test drilling. The observation hole drilling device for the water pumping test comprises a base, a drilling machine and a splash-proof material conveying mechanism. The drilling machine bottom with base top surface fixed connection, the rotatory auger of drilling machine output end fixedly connected with, rotatory auger bottom slide run through in the base, the defeated material mechanism of splashproof includes electric putter, splash guard, gallows, motor, action wheel, follows driving wheel, drive belt and doctor-bar, electric putter fixed connection in the base both sides, the electric putter output with splash guard top surface both sides fixed connection, the through-hole has been seted up at the splash guard top, rotatory auger bottom slide run through in the through-hole, the splash guard bottom is provided with the blotter. This application can block hard things such as the stone that storage device thrown out, avoids hard thing to damage equipment and injures operating personnel by a crashing object to the drilling security of device has been improved.
Description
Technical Field
The application relates to the technical field of water pumping test drilling, in particular to an observation hole drilling device for a water pumping test.
Background
The pumping test comprises the steps of pumping a certain amount of water from the pumping well, measuring the change of underground water levels at different time by the observation well at a certain distance, and analyzing the results of the pumping test by utilizing various underground water flow theoretical formulas or graphical methods thereof through the observation data. In order to calculate hydrogeological parameters, 2-3 observation holes are preferably arranged on one side of each water pumping hole in the direction of the flow of underground water. At present, when an observation hole is formed, a rotary auger of a drilling machine is inserted into the ground in a rotating mode, the rotary auger throws out soil while rotating at a high speed, and due to the fact that the soil is rich in sundries, thrown-out hard objects such as stones can damage equipment, and unsafe hidden dangers are brought to a drilling environment.
How to invent an observation hole drilling device for a water pumping test to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to make up for above not enough, this application provides an inspection hole drilling equipment for pumping test, aims at improving the problem that drilling equipment has the potential safety hazard.
The embodiment of the application provides a suction test is with inspection hole drilling equipment, including base, drilling machine and splashproof defeated material mechanism.
The bottom of the drilling machine is fixedly connected with the top surface of the base, the output end of the drilling machine is fixedly connected with a rotary auger, and the bottom end of the rotary auger slidably penetrates through the base.
The splash-proof material conveying mechanism comprises an electric push rod, a splash guard, a hanging bracket, a motor, a driving wheel, a driven wheel, a driving belt and a scraping blade, wherein the electric push rod is fixedly connected with two sides of the base, the output end of the electric push rod is fixedly connected with two sides of the top surface of the splash guard, the top of the splash guard is provided with a through hole, the bottom end of the rotary auger is slidably penetrated in the through hole, the bottom of the splash guard is provided with a cushion pad, one side of the bottom of the splash guard is provided with a through groove, the hanging bracket is fixedly connected with one side of the splash guard, the motor is fixedly connected with one side of the hanging bracket, the driving wheel and the driven wheel are respectively rotatably connected with two sides of the bottom of the hanging bracket, the output end of the motor is fixedly connected with one side of the driving wheel, the driving wheel is in transmission connection with the driven wheel through the driving belt, and the scraping blade is fixedly connected with the driving belt at intervals, the driven wheel is located in the through groove, and the transmission belt penetrates through the through groove in a rotating mode.
In the implementation process, during the use, according to the observation hole position of mark, with the device removal assigned position, then open electric putter and promote the splash guard downwards and make the blotter paste in the bottom surface, then stop electric putter, open the drilling machine and drive rotatory auger and rotate to ground internal rotation, the rotatory auger of high-speed rotation throws hard thing such as bottom surface soil and stone and strikes the splash guard inner wall and is hit down by the bullet, when the inside debris of protection casing is more, it drives the action wheel rotation to open the motor, the action wheel makes the drive belt and follows the driving wheel rotation in proper order, the doctor blade on the drive belt scrapes out debris through leading to the groove. This application can block hard things such as the stone that storage device thrown out, avoids hard thing to damage equipment and injures operating personnel by a crashing object to the drilling security of device has been improved.
In a specific embodiment, the bottom of the base is provided with a supporting leg, and the bottom end of the supporting leg is rotatably connected with a roller.
In the implementation process, the support legs are arranged to leave a contraction space for the splash guard, so that the splash guard is prevented from influencing the movement of the device.
In a specific embodiment, hydraulic oil cylinders are arranged at two ends of the bottom of the base, and a support plate is fixedly connected to the output end of each hydraulic oil cylinder.
In the implementation process, the hydraulic oil cylinder is opened to enable the support plate to support the ground, and the device is convenient to fix.
In a specific embodiment, a protective shell is arranged outside the electric push rod, the protective shell is fixedly connected inside the base, and the electric push rod is fixedly connected inside the protective shell.
In the implementation process, the protective shell prevents the electric push rod from being exposed outdoors, avoids insolation and rainwater corrosion, and prolongs the service life of the protective shell.
In a specific embodiment, the output end of the electric push rod is fixedly connected with a connecting block, and the connecting block is fixedly connected with two sides of the top surface of the splash guard.
In the implementation process, the connecting block is arranged to improve the connection stability of the electric push rod and the top surface of the splash guard.
In a specific embodiment, the driving wheel and the driven wheel are rotatably connected through a rotating shaft at two sides of the bottom of the hanger.
In the implementation process, the rotating shaft is arranged to improve the rotation stability of the driving wheel, the driven wheel and the hanging bracket.
In a specific embodiment, the inner splash guard wall is provided with an anti-sticking film, and the inner splash guard wall is inclined downwards.
In the implementation process, the anti-sticking film is arranged, so that soil is prevented from being stuck on the inner wall of the splash guard and being accumulated, and the scraping of the scraper blade is influenced.
In a specific embodiment, still include dust fall mechanism, dust fall mechanism is including breathing in cover, suction fan and dust fall case, breathe in cover fixed connection in splash guard top surface one side, suction fan and dust fall case fixed connection in base top surface one side, the suction fan input with breathe in cover one end intercommunication, the suction fan output with dust fall incasement bottom intercommunication.
In the implementation process, the suction fan is opened to suck dust generated by soil into the dust settling tank and the dust is adsorbed by water, so that the dust is prevented from polluting air.
In a specific embodiment, a filter screen is arranged at one end of the air suction cover facing to one side of the through hole.
In the implementation process, the filter screen is arranged to prevent soil and the like from being sucked into the suction fan to damage instruments.
In a specific embodiment, a blowdown valve is arranged on one side of the bottom of the dust settling tank, and an exhaust port is communicated with one side of the top of the dust settling tank.
In the implementation process, the sewage discharge valve is arranged to discharge sewage, and the dust falling box can be recycled.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an overall observation hole drilling device for a water pumping test according to an embodiment of the present disclosure;
fig. 2 is a partial structural schematic view of an anti-splash conveying mechanism of an observation hole drilling device for a water pumping test according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of an inner bottom structure of a splash guard of an observation hole drilling device for a water pumping test according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a portion of an air suction cover of an observation hole drilling device for a water pumping test according to an embodiment of the present application.
In the figure: 100-a base; 110-a leg; 120-a roller; 130-a hydraulic oil cylinder; 140-a support plate; 200-a drilling machine; 210-rotating the auger; 300-anti-splash material conveying mechanism; 310-an electric push rod; 311-a protective shell; 312-connecting block; 320-a splash guard; 321-a through hole; 322-a cushion pad; 323-through groove; 324-an anti-adhesive film; 330-a hanger; 340-a motor; 350-a driving wheel; 351-a rotating shaft; 360-driven wheel; 370-a conveyor belt; 380-scraping blade; 400-dust falling mechanism; 410-an air suction hood; 411-a filter screen; 420-a suction fan; 430-dust falling box; 431-a blowdown valve; 432-exhaust port.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1-4, the present application provides a technical solution: an observation hole drilling device for a water pumping test comprises a base 100, a drilling machine 200 and a splash-proof material conveying mechanism 300.
Referring to fig. 1, a supporting leg 110 is arranged at the bottom of a base 100, a roller 120 is rotatably connected to the bottom end of the supporting leg 110, the supporting leg 110 is arranged to leave a contraction space for a splash guard 320, so that the splash guard 320 is prevented from influencing the movement of the device, two ends of the bottom of the base 100 are provided with hydraulic cylinders 130, an output end of each hydraulic cylinder 130 is fixedly connected with a supporting plate 140, and the supporting plate 140 is supported by the supporting plate 140 when the hydraulic cylinders 130 are opened, so that the device can be conveniently fixed.
Referring to fig. 1, the bottom of the drilling machine 200 is fixedly connected to the top surface of the base 100, the output end of the drilling machine 200 is fixedly connected to the rotary auger 210, and the bottom end of the rotary auger 210 slidably penetrates through the base 100.
Referring to fig. 1, 2 and 3, the splash proof feeding mechanism 300 includes an electric push rod 310, a splash guard 320, a hanger 330, a motor 340, a driving wheel 350, a driven wheel 360, a transmission belt 370 and a scraper 380, the electric push rod 310 is fixedly connected to both sides of the base 100, an output end of the electric push rod 310 is fixedly connected to both sides of a top surface of the splash guard 320, a protective shell 311 is disposed outside the electric push rod 310, the protective shell 311 is fixedly connected to the inside of the base 100, the electric push rod 310 is fixedly connected to the inside of the protective shell 311, the protective shell 311 prevents the electric push rod 310 from being exposed outdoors, insolation and rain corrosion are avoided, the service life of the splash guard is prolonged, an output end of the electric push rod 310 is fixedly connected to a connection block 312, the connection block 312 is fixedly connected to both sides of the top surface of the splash guard 320, the connection block 312 is disposed to improve the connection stability between the electric push rod 310 and the top surface of the splash guard 320, a through hole 321 is formed at the top of the splash guard 320, the bottom end of the rotary auger 210 slidably penetrates through the through hole 321, the bottom of the splash guard 320 is provided with a cushion pad 322, one side of the bottom of the splash guard 320 is provided with a through groove 323, the hanger 330 is fixedly connected with one side of the splash guard 320, the inner wall of the splash guard 320 is provided with an anti-sticking film 324, the inner wall of the splash guard 320 inclines downwards and is provided with the anti-sticking film 324 to prevent soil from being stuck on the inner wall of the splash guard 320 and accumulating to influence the scraping of the scraping blade 380 off the soil, the motor 340 is fixedly connected with one side of the hanger 330, the driving wheel 350 and the driven wheel 360 are respectively rotatably connected with two sides of the bottom of the hanger 330, the output end of the motor 340 is fixedly connected with one side of the driving wheel 350, the driving wheel 350 is in transmission connection with the driven wheel 360 through a transmission belt 370, the driving wheel 350 and the driven wheel 360 are rotatably connected with two sides of the bottom of the hanger 330 through a rotating shaft 351 to improve the rotating stability of the driving wheel 350 and the driven wheel 360 and the hanger 330, the scraping blade 380 is fixedly connected with the transmission belt 370 at intervals, the driven wheel 360 is positioned in the through groove 323, and the transmission belt 370 is rotatably penetrated in the through groove 323.
Referring to fig. 1 and 4, the observation hole drilling device for the water pumping test further includes a dust settling mechanism 400, the dust settling mechanism 400 includes an air suction cover 410, a suction fan 420 and a dust settling tank 430, the air suction cover 410 is fixedly connected to one side of the top surface of the splash cover 320, the suction fan 420 and the dust settling tank 430 are fixedly connected to one side of the top surface of the base 100, an input end of the suction fan 420 is communicated with one end of the air suction cover 410, an output end of the suction fan 420 is communicated with the bottom of the dust settling tank 430, the suction fan 420 is opened to suck dust generated by soil into the dust settling tank 430 and adsorb the dust by water, thereby avoided dust polluted air, the one end of cover 410 towards through-hole 321 one side of breathing in is provided with filter screen 411, sets up filter screen 411 and avoids soil etc. to be inhaled suction fan 420 and damage the instrument, and dust fall case 430 bottom one side is provided with blowoff valve 431, and dust fall case 430 top one side intercommunication has gas vent 432, sets up blowoff valve 431 discharge sewage, can recycle dust fall case 430.
This observation hole drilling equipment for pumping test's theory of operation: when the device is used, the device is moved to a designated position according to the marked observation hole position, then the electric push rod 310 is opened to push the splash guard 320 downwards to enable the cushion pad 322 to be attached to the bottom surface, then the electric push rod 310 is stopped, the drilling machine 200 is opened to drive the rotary auger 210 to rotate towards the ground, the rotary auger 210 rotating at a high speed throws out soil on the bottom surface and hard objects such as stones and the like to impact the inner wall of the splash guard 320 to be knocked down, when the sundries in the shield are more, the motor 340 is opened to drive the driving wheel 350 to rotate, the driving wheel 350 sequentially enables the driving belt 370 and the driven wheel 360 to rotate, and the scraping blade 380 on the driving belt 370 scrapes the sundries through the through groove 323. This application can block hard things such as the stone that storage device thrown out, avoids hard thing to damage equipment and injures operating personnel by a crashing object to the drilling security of device has been improved.
It should be noted that the specific model specifications of the hydraulic cylinder 130, the drilling machine 200, the electric push rod 310, the motor 340 and the suction fan 420 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.
The power supply and the principle of the hydraulic cylinder 130, the drilling machine 200, the electric push rod 310, the motor 340 and the suction fan 420 are apparent to those skilled in the art and will not be described in detail herein.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An observation hole drilling device for a water pumping test is characterized by comprising
A base (100);
the bottom of the drilling machine (200) is fixedly connected with the top surface of the base (100), the output end of the drilling machine (200) is fixedly connected with a rotary packing auger (210), and the bottom end of the rotary packing auger (210) penetrates through the base (100) in a sliding manner;
defeated material mechanism of splashproof (300), defeated material mechanism of splashproof (300) includes electric putter (310), splash guard (320), gallows (330), motor (340), action wheel (350), follows driving wheel (360), drive belt (370) and doctor-bar (380), electric putter (310) fixed connection in base (100) both sides, electric putter (310) output with splash guard (320) top surface both sides fixed connection, through-hole (321) have been seted up at splash guard (320) top, rotatory auger (210) bottom slides and runs through in through-hole (321), splash guard (320) bottom is provided with blotter (322), and logical groove (323) have been seted up to splash guard (320) bottom one side, gallows (330) with splash guard (320) one side fixed connection, motor (340) with gallows (330) one side fixed connection, the driving wheel (350) and the driven wheel (360) are respectively connected with two sides of the bottom of the hanging bracket (330) in a rotating mode, the output end of the motor (340) is fixedly connected with one side of the driving wheel (350), the driving wheel (350) is in transmission connection with the driven wheel (360) through the transmission belt (370), the scraping blade (380) is fixedly connected onto the transmission belt (370) at intervals, the driven wheel (360) is located in the through groove (323), and the transmission belt (370) is rotatably penetrated in the through groove (323).
2. The observation hole drilling device for the water pumping test according to claim 1, wherein a leg (110) is arranged at the bottom of the base (100), and a roller (120) is rotatably connected to the bottom end of the leg (110).
3. The observation hole drilling device for the water pumping test is characterized in that hydraulic oil cylinders (130) are arranged at two ends of the bottom of the base (100), and supporting plates (140) are fixedly connected to output ends of the hydraulic oil cylinders (130).
4. The observation hole drilling device for the water pumping test according to claim 1, wherein a protective shell (311) is arranged outside the electric push rod (310), the protective shell (311) is fixedly connected inside the base (100), and the electric push rod (310) is fixedly connected inside the protective shell (311).
5. The observation hole drilling device for the water pumping test is characterized in that a connecting block (312) is fixedly connected to the output end of the electric push rod (310), and the connecting block (312) is fixedly connected with two sides of the top surface of the splash guard (320).
6. The observation hole drilling device for the water pumping test according to claim 1, wherein the driving wheel (350) and the driven wheel (360) are rotatably connected through a rotating shaft (351) on two sides of the bottom of the hanger (330).
7. The observation hole drilling device for the water pumping test is characterized in that an anti-sticking film (324) is arranged on the inner wall of the splash guard (320), and the inner wall of the splash guard (320) is inclined downwards.
8. The observation hole drilling device for the water pumping test is characterized by further comprising a dust falling mechanism (400), wherein the dust falling mechanism (400) comprises an air suction cover (410), a suction fan (420) and a dust falling box (430), the air suction cover (410) is fixedly connected to one side of the top surface of the splash cover (320), the suction fan (420) and the dust falling box (430) are fixedly connected to one side of the top surface of the base (100), the input end of the suction fan (420) is communicated with one end of the air suction cover (410), and the output end of the suction fan (420) is communicated with the bottom in the dust falling box (430).
9. The observation hole drilling device for the water pumping test according to claim 8, characterized in that the end of the air suction cover (410) facing to the side of the through hole (321) is provided with a filter screen (411).
10. The observation hole drilling device for the water pumping test is characterized in that a drain valve (431) is arranged on one side of the bottom of the dust falling box (430), and an exhaust port (432) is communicated with one side of the top of the dust falling box (430).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445271.8A CN113175300A (en) | 2021-04-23 | 2021-04-23 | Observation hole drilling device for water pumping test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445271.8A CN113175300A (en) | 2021-04-23 | 2021-04-23 | Observation hole drilling device for water pumping test |
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|---|---|
| CN113175300A true CN113175300A (en) | 2021-07-27 |
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| CN202110445271.8A Pending CN113175300A (en) | 2021-04-23 | 2021-04-23 | Observation hole drilling device for water pumping test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115095276A (en) * | 2022-07-16 | 2022-09-23 | 唐山中地工程勘察有限公司 | Drilling machine for geotechnical engineering investigation |
| CN115367009A (en) * | 2022-08-23 | 2022-11-22 | 三一重机有限公司 | Lower frame, traveling device and working machine |
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Application publication date: 20210727 |