CN115030671B - Multifunctional adjustable protective cover and application method thereof - Google Patents
Multifunctional adjustable protective cover and application method thereof Download PDFInfo
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- CN115030671B CN115030671B CN202210677926.9A CN202210677926A CN115030671B CN 115030671 B CN115030671 B CN 115030671B CN 202210677926 A CN202210677926 A CN 202210677926A CN 115030671 B CN115030671 B CN 115030671B
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- horizontal arc
- stay bar
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- protective
- arc
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- 230000001681 protective effect Effects 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000005070 sampling Methods 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a multifunctional adjustable protective cover and a use method thereof. The first horizontal arc stay bar, the second horizontal arc stay bar and the telescopic vertical stay bar form a reliable and stable keel frame; the protective device consists of a perforated protective cover, a first protective screen and a second protective screen; the second protective screen adjusts the gradient and the radius through the rotating shaft and the sliding seat; the protection cover with the hole is provided with a detection hole and a drill lifting rope hole; the detection device consists of an automatic lifting control system, a measuring rope, a sampling small barrel and a double-pulley support, and can realize automatic lifting sampling and measuring the specific gravity, sand content and hole depth of slurry; the multifunctional adjustable protective cover device is simple in structure, low in cost, free of influencing normal construction during use, capable of effectively keeping the construction site clean, avoiding pollution and realizing green construction.
Description
Technical Field
The invention relates to the field of foundation engineering, in particular to a multifunctional adjustable protective cover and a use method thereof.
Background
Pile foundations are widely applied to engineering fields such as high-rise buildings, bridges, high-speed rails and the like, and slurry is generally used for wall protection in order to ensure drilling quality and prevent collapse in the process of constructing the pile foundations by adopting an impact drilling process. However, the drill bit can splash around the slurry with the hole slag suspended therein in the impact hole forming process, so that the environmental pollution of the construction site is serious. In the prior art, a simple protective cover is usually adopted to enclose the drilling hole in order to prevent mud from splashing, but the method has the following defects: 1) The common protective cover is generally larger than the diameter of a drilled hole, the hole between the steel protective cylinder and the cover wall is larger, splashed slurry slides down along the cover wall of the protective cover after colliding with the protective cover, and the protective cover is not sealed tightly, so that the slurry overflows to cause larger pollution; 2) When carrying out hole depth measurement and mud sampling in the drilling construction process, need the manual work to open or remove simple protection casing, complex operation inefficiency influences the construction progress. In summary, the multifunctional adjustable protective cover which is convenient to install, green and environment-friendly and integrates hole depth measurement and sampling is an urgent problem to be solved in engineering.
Disclosure of Invention
The invention aims to provide the multifunctional adjustable protective cover which has a simple structure and low cost, does not influence normal construction during use, can effectively keep the construction site clean, avoids pollution and realizes green construction, and the use method thereof.
In order to achieve the above purpose, the multifunctional adjustable protective cover comprises a keel frame, a protective device and a detection device;
the keel frame comprises at least three groups of telescopic vertical supporting rods, and a first horizontal arc supporting rod and a second horizontal arc supporting rod which are respectively arranged at the top and the middle of the telescopic vertical supporting rods;
the protection device comprises a protection cover with holes, a first protection screen and a second protection screen, wherein the protection cover is arranged at the top of the first horizontal arc stay bar, the first protection screen is arranged between the first horizontal arc stay bar and the second horizontal arc stay bar, and the second protection screen is arranged at the bottom of the second horizontal arc stay bar;
the detection device comprises a double-pulley support fixed on the first horizontal arc-shaped supporting rod and a measuring rope which bypasses the double pulleys, one end of the measuring rope is connected and fixed on an automatic lifting control system outside the keel frame, and the other end of the measuring rope is connected with a measuring hammer or a sampling small barrel which penetrates through a detection hole of the protection cover with a hole;
the lower end of the second horizontal arc-shaped supporting rod is provided with a double-row sliding rail, the width of the sliding rail is 20mm, and the top end of the second protective screen is provided with a sliding seat which is adaptive to the double-row sliding rail;
the second protective screen adopts four arc structures with radian of 120 degrees to form a second protective screen with the diameter of 2000-3000 mm, the second protective screen is connected with double rows of sliding rails at the bottom of the second horizontal arc stay bar through sliding seats, and each row of sliding rails is respectively connected with 2 arc structures with the radian of 120 degrees;
the middle parts of the four arc structures of 120 degrees of the second protective screen are respectively provided with a rotating shaft, the arc structures of 120 degrees on the upper parts of the rotating shafts are connected with double rows of sliding rails on the bottom of the second horizontal arc stay bars through sliding seats, and the lower parts of the rotating shafts are rotating ends.
The telescopic vertical stay bar is a double-layer sleeve with four groups of rectangular cross sections, the cross section area is 50mm multiplied by 50mm, the length of the inner sleeve and the outer sleeve is 1000 mm-1500 mm, the double-layer sleeve is uniformly provided with a plurality of screw holes with the diameter of 10mm, which are used for realizing the vertical lifting adjustment function of the telescopic vertical stay bar, and the bottom of the telescopic vertical stay bar is provided with a base with holes, which is used for being fixed with the ground.
The first horizontal arc stay bar is formed by connecting two half arcs with the radian of 180 degrees through a stainless steel spring hasp, and the diameter of the first horizontal arc stay bar is 2000-3000 mm.
The measuring rope is provided with scales.
The size of the protection cover with the hole is matched with that of the first horizontal arc stay bar, and a detection hole and a drill hanging rope hole are formed; the size of the detection hole is 200mm multiplied by 200mm, and the centroid distance of the detection hole is 300 mm-500 mm from the telescopic vertical stay bar; the size of the drill lifting rope hole is 500mm multiplied by 500mm, and the centroid is positioned at the center of the protection cover with the hole.
The double-pulley support is arranged on the periphery of the first horizontal arc-shaped supporting rod and on the same side with the automatic lifting control system, and the distance between the two pulleys is matched with the detection hole.
The invention discloses a construction method of a multifunctional adjustable protective cover, which comprises the following steps:
(1) And (3) prefabricated components: the method comprises the steps of pre-processing a first horizontal arc stay bar, a protection cover with holes, a double-pulley support, a first protection screen, a second horizontal arc stay bar, a telescopic vertical stay bar and a second protection screen;
(2) Assembling a keel frame: the first horizontal arc stay bar is connected to the top of the telescopic vertical stay bar, the second horizontal arc stay bar is connected to the middle of the telescopic vertical stay bar, and the four telescopic vertical stay bars are arranged at equal intervals;
(3) And (3) assembling a protective screen: the first protective screen is arranged at the bottom of the first horizontal arc stay bar and is connected into a closed curved surface through a stainless steel spring hasp; the second protective screen is connected with double rows of sliding rails at the bottom of the second horizontal arc-shaped supporting rod through a sliding seat, and each row of sliding rails is respectively connected with 2 second protective screens;
(4) Assembling the detection device: the double-pulley support is fixed on a first horizontal arc-shaped supporting rod, and the automatic lifting control system is fixed on the outer side of the telescopic vertical supporting rod and is positioned on the same side with the double-pulley support; the measuring rope is arranged around the double pulleys, one end of the measuring rope is fixedly connected with the automatic lifting control system, and the other end of the measuring rope penetrates through a detection hole of the protecting cover with holes to be connected with the measuring hammer or the sampling small barrel;
(5) The horizontal position of the device is adjusted, and the perforated base is fixed with the ground through a screw; rotating the rotating ends of the lower parts of the rotating shafts of the four arc-shaped structures with the angle of 120 degrees to enable the caliber below the second protective screen to be matched with the steel protective cylinder, at the moment, gaps can be formed between the second protective screens, and then the sliding seat is slid to adjust the overlapping parts of the arc-shaped structures with the angle of 120 degrees to make up the gaps; when the second protective screen is adjusted, the telescopic vertical supporting rod is adjusted, so that the vertical direction of the second protective screen is matched with the steel protective cylinder; and finally, starting an automatic lifting control system to perform hole depth measurement or sampling.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a multifunctional adjustable protective cover device which comprises a keel frame, a protective device and a detection device; the keel frame consists of a first horizontal arc stay bar, a second horizontal arc stay bar and a telescopic vertical stay bar, and the connection mode of the first horizontal arc stay bar, the second horizontal arc stay bar and the telescopic vertical stay bar is simple, and the formed structure is stable and reliable.
2. According to the invention, the second protective screen is tightly attached to the drilling steel protective wall through the telescopic vertical stay bar, the sliding rail and the rotating shaft, so that the sealing is compact, side leakage is avoided, and the drilling steel protective wall is applicable to different drilling apertures.
3. The detection device realizes the functions of hole depth measurement and slurry sampling through the automatic lifting control system, and the detection device is stable and reliable in operation, saves manpower and improves the construction efficiency.
4. The stainless steel spring is formed by connecting the stainless steel spring buckle and the bolt, and is convenient to install and detach.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the keel frame of fig. 1.
Fig. 3 is a schematic view of the telescoping vertical stay of fig. 1.
Fig. 4 is a schematic view of the connection of the second horizontal arc stay and the second shield in fig. 1.
Fig. 5 is a schematic view of the detection device of fig. 1.
Fig. 6 is a schematic view of the apertured shield cover of fig. 1.
In the figure, a first horizontal arc supporting rod, a 2-protection cover with holes, a 3-double pulley support, a 4-first protection screen, a 5-automatic lifting control system, a 6-second horizontal arc supporting rod, a 7-telescopic vertical supporting rod, a 8-second protection screen, a 9-rotating shaft, a 10-rope measuring device and a 11-sampling small barrel are arranged.
Detailed Description
The invention is described in further detail below with reference to the drawings.
As shown in fig. 1, the invention comprises a keel frame, a protective device and a detection device.
As shown in fig. 1 and 2, the keel frame is composed of a first horizontal arc-shaped stay bar 1, a second horizontal arc-shaped stay bar 6 and a telescopic vertical stay bar 7. The top parts of the four telescopic vertical supporting rods 7 are internally connected with a first horizontal arc supporting rod 1, and the middle parts of the four telescopic vertical supporting rods are internally connected with a second horizontal arc supporting rod 6.
As shown in fig. 3, the telescopic vertical stay bar 7 is a double-layer sleeve structure with a rectangular section of 50mm×50mm, the lengths of the inner sleeve and the outer sleeve are 1000 mm-1500 mm, the double-layer sleeve is uniformly provided with a plurality of screw holes with diameters of 10mm, which are arranged according to the requirement and are used for realizing the vertical lifting adjustment function of the telescopic vertical stay bar 7, and the bottom of the telescopic vertical stay bar 7 is provided with a base with holes, which is used for being fixed with the ground.
As shown in fig. 1, the protection device of the present invention comprises a perforated protection cover 2 arranged on the top of a first horizontal arc-shaped stay bar 1, a first protection screen 4 arranged between the first horizontal arc-shaped stay bar 1 and a second horizontal arc-shaped stay bar 6, and a second protection screen 8 arranged on the bottom of the second horizontal arc-shaped stay bar 6; the first horizontal arc stay bar 1 is formed by connecting two half arcs with the radian of 180 degrees through a stainless steel spring hasp, and the diameter of the first horizontal arc stay bar is 2000-3000 mm.
Referring to fig. 4, the bottom of the second horizontal arc stay bar 6 is provided with two rows of sliding rails, the width of the sliding rails is 20mm, the second protective screen 8 is formed by adopting four arc structures with radian of 120 degrees to form the second protective screen 8 with the diameter of 2000 mm-3000 mm, the middle parts of the four arc structures with the radian of 120 degrees are all provided with rotating shafts 9, the arc structures at the upper part of the rotating shafts 9 are connected with the bottom of the second horizontal arc stay bar 6 through sliding seats, the lower part of the rotating shafts 9 is a rotating end, each row of sliding rails is respectively connected with 2 arc structures with the angle of 120 degrees, after the aperture at the bottom of the second protective screen 8 is matched with a steel protective cylinder through the rotating shafts 9, gaps are generated between the arc structures with the angle of 120 degrees, and the overlapping parts of the arc structures with the angle of 120 degrees are adjusted through the sliding seats to compensate the gaps. The rotating end of the rotating shaft can rotate towards the upper direction or the lower direction of the inner side of the multifunctional adjustable protective cover. The limit above the inner side is that the rotation is right angle between the fixed end and the rotation end, and the gradient is zero. The limit below the outer side is that the angle between the fixed end and the rotating end is 180 degrees, and the gradient is 1. When the rotating ends of the four arc-shaped structures of 120 degrees simultaneously rotate towards the upper inner side, the gradient of the rotating ends is slowed down, so that the caliber of the lower side of the second protective screen 8 is reduced. When the rotating ends of the four arc-shaped structures of 120 degrees simultaneously rotate towards the outer side and the lower side, the gradient of the rotating ends becomes steep, and the caliber of the lower side of the second protective screen 8 becomes large. The rotating ends of the four arc-shaped structures with the angle of 120 degrees are adjusted according to the caliber of the rigid guard arm, so that the bottom caliber of the second protective screen 8 is matched with the caliber of the steel guard barrel.
As shown in fig. 1 and 5, the detecting device of the invention comprises a double-pulley support 3 fixed on the periphery of a first horizontal arc-shaped supporting rod 1 and a measuring rope 10 bypassing the double pulleys, wherein one end of the measuring rope 10 is connected and fixed on an automatic lifting control system 5 on the outer side of a keel frame, and the other end is connected with a measuring hammer or a sampling small barrel 11 penetrating through a detecting hole of a protecting cover 2 with a hole.
As shown in fig. 6, the perforated protective cover 2 is provided with a stainless steel keel in a shape of a groined in a circular ring, the size of the perforated protective cover 2 is matched with that of the first horizontal arc stay bar 1, and a detection hole and a drill hanging rope hole are arranged; the size of the detection hole is 200mm multiplied by 200mm, and the centroid distance of the telescopic vertical stay bar 7 is 300 mm-500 mm; the size of the drill lifting rope hole is 500mm multiplied by 500mm, and the centroid is positioned at the center of the protection cover 2 with the hole.
The invention also provides a specific construction mode of the multifunctional adjustable protective cover device, which comprises the following steps:
(1) And (3) prefabricated components: the method comprises the following steps of pre-processing a first horizontal arc stay bar 1, a perforated protective cover 2, a double-pulley support 3, a first protective screen 4, a second horizontal arc stay bar 6, a telescopic vertical stay bar 7 and a second protective screen 8;
(2) Assembling a keel frame: the first horizontal arc stay bar 1 is connected to the top of the telescopic vertical stay bar 7, the second horizontal arc stay bar 6 is connected to the middle part of the telescopic vertical stay bar 7, and the four telescopic vertical stay bars 7 are arranged at equal intervals;
(3) And (3) assembling a protective screen: the first protective screen 4 is arranged at the bottom of the first horizontal arc stay bar 1 and is connected into a closed curved surface through a stainless steel spring hasp; the second protective screen 8 is connected with double rows of sliding rails at the bottom of the second horizontal arc stay bar 6 through a sliding seat, and each row of sliding rails is respectively connected with 2 second protective screens 8;
(4) Assembling the detection device: the double-pulley support 3 is fixed on the first horizontal arc-shaped supporting rod 1, and the automatic lifting control system 5 is fixed on the outer side of the telescopic vertical supporting rod 7 and on the same side with the double-pulley support 3; the measuring rope is arranged around the double pulleys, one end of the measuring rope is fixedly connected with the automatic lifting control system, and the other end of the measuring rope penetrates through a detection hole of the protecting cover 2 with a hole to be connected with the measuring hammer or the sampling small barrel 11;
(5) The horizontal position of the device is adjusted, and the perforated base is fixed with the ground through a screw; rotating the rotating ends below the rotating shafts 9 of the four arc-shaped structures with the angle of 120 degrees to enable the caliber below the second protective screen 8 to be matched with the caliber of the steel protective cylinder, at the moment, gaps can be formed between the second protective screens 8, and then the sliding seat is slid to adjust the overlapping parts of the arc-shaped structures with the angle of 120 degrees to make up the gaps; when the second protective screen 8 is adjusted, the telescopic vertical stay bar 7 is adjusted, so that the vertical direction of the second protective screen 8 is matched with the steel protective cylinder; finally, the automatic lifting control system 5 is started to perform hole depth measurement or sampling work.
Claims (7)
1. A multifunctional adjustable protective cover is characterized in that: comprises a keel frame, a protection device and a detection device;
the keel frame comprises at least three groups of telescopic vertical supporting rods (7), and a first horizontal arc supporting rod (1) and a second horizontal arc supporting rod (6) which are respectively arranged at the top and the middle of the telescopic vertical supporting rods (7);
the protection device comprises a protection cover (2) with holes, which is arranged at the top of a first horizontal arc-shaped supporting rod (1), a first protection screen (4), which is arranged between the first horizontal arc-shaped supporting rod (1) and a second horizontal arc-shaped supporting rod (6), and a second protection screen (8), which is arranged at the bottom of the second horizontal arc-shaped supporting rod (6);
the detection device comprises a double-pulley support (3) fixed on a first horizontal arc-shaped supporting rod (1) and a measuring rope (10) which bypasses the double pulleys, one end of the measuring rope (10) is connected and fixed on an automatic lifting control system (5) at the outer side of a keel frame, and the other end of the measuring rope is connected with a measuring hammer or a sampling small barrel (11) penetrating through a detection hole of a perforated protective cover (2);
the lower end of the second horizontal arc-shaped supporting rod (6) is provided with a double-row sliding rail, the width of the sliding rail is 20mm, and the top end of the second protective screen (8) is provided with a sliding seat which is adaptive to the double-row sliding rail;
the second protective screen (8) adopts four arc structures with radian of 120 degrees to form a second protective screen (8) with the diameter of 2000-3000 mm, the second protective screen (8) is connected with double rows of sliding rails at the bottom of the second horizontal arc stay bar (6) through sliding seats, and each row of sliding rails is respectively connected with 2 arc structures with the radian of 120 degrees;
the middle parts of the four arc structures of 120 degrees of the second protective screen (8) are respectively provided with a rotating shaft (9), the arc structures of 120 degrees on the upper parts of the rotating shafts (9) are connected with double-row sliding rails at the bottom of the second horizontal arc supporting rod (6) through sliding seats, and the lower parts of the rotating shafts (9) are rotating ends.
2. The multifunctional adjustable shield according to claim 1, wherein: the telescopic vertical support rod (7) is a double-layer sleeve with four groups of rectangular cross sections, the cross section area is 50mm multiplied by 50mm, the length of the inner sleeve and the outer sleeve is 1000 mm-1500 mm, the double-layer sleeve is uniformly provided with a plurality of screw holes with the diameter of 10mm, which are used for realizing the vertical lifting adjustment function of the telescopic vertical support rod (7), and the bottom of the telescopic vertical support rod (7) is provided with a perforated base which is used for being fixed with the ground.
3. The multifunctional adjustable shield according to claim 1, wherein: the first horizontal arc stay bar (1) is formed by connecting two half arcs with radian of 180 degrees through a stainless steel spring hasp, and the diameter of the first horizontal arc stay bar is 2000-3000 mm.
4. The multifunctional adjustable shield according to claim 1, wherein: the measuring rope (10) is provided with scales.
5. The multifunctional adjustable shield according to claim 1, wherein: the size of the protection cover (2) with the hole is matched with that of the first horizontal arc stay bar (1), and a detection hole and a drill hanging rope hole are formed; the size of the detection hole is 200mm multiplied by 200mm, and the centroid distance of the detection hole is 300mm to 500mm from the telescopic vertical stay bar (7); the size of the drill lifting rope hole is 500mm multiplied by 500mm, and the centroid is positioned at the center of the protection cover (2) with the hole.
6. The multifunctional adjustable shield according to claim 1, wherein: the double-pulley support (3) is arranged on the periphery of the first horizontal arc-shaped supporting rod (1) and is on the same side as the automatic lifting control system (5), and the distance between the two pulleys is matched with the detection hole.
7. The construction method of a multifunctional adjustable shield according to any one of claims 1-6, comprising the steps of:
(1) And (3) prefabricated components: the method comprises the steps of pre-processing a first horizontal arc stay bar (1), a protection cover (2) with holes, a double-pulley support (3), a first protection screen (4), a second horizontal arc stay bar (6), a telescopic vertical stay bar (7) and a second protection screen (8);
(2) Assembling a keel frame: the first horizontal arc stay bar (1) is connected to the top of the telescopic vertical stay bar (7), the second horizontal arc stay bar (6) is connected to the middle of the telescopic vertical stay bar (7), and the four telescopic vertical stay bars (7) are arranged at equal intervals;
(3) And (3) assembling a protective screen: the first protective screen (4) is arranged at the bottom of the first horizontal arc-shaped supporting rod (1) and is connected into a closed curved surface through a stainless steel spring hasp; the second protective screen (8) is connected with double rows of sliding rails at the bottom of the second horizontal arc-shaped supporting rod (6) through a sliding seat, and each row of sliding rails is respectively connected with 2 second protective screens (8);
(4) Assembling the detection device: the double-pulley support (3) is fixed on the first horizontal arc-shaped supporting rod (1), and the automatic lifting control system (5) is fixed on the outer side of the telescopic vertical supporting rod (7) and is positioned on the same side with the double-pulley support (3); the measuring rope is arranged around the double pulleys, one end of the measuring rope is fixedly connected with the automatic lifting control system, and the other end of the measuring rope penetrates through a detection hole of the protection cover (2) with holes to be connected with a measuring hammer or a sampling small barrel (11);
(5) The horizontal position of the device is adjusted, and the perforated base is fixed with the ground through a screw; rotating the rotating ends of the lower parts of the rotating shafts (9) of the four arc-shaped structures with the angle of 120 degrees to enable the caliber below the second protective screen (8) to be matched with that of the steel protective cylinder, at the moment, gaps can be formed between the second protective screens (8), and then the sliding seat is used for adjusting the overlapping parts of the arc-shaped structures with the angle of 120 degrees to compensate the gaps; when the second protective screen (8) is adjusted, the telescopic vertical stay bar (7) is adjusted, so that the vertical direction of the second protective screen (8) is matched with the steel casing; finally, an automatic lifting control system (5) is started to conduct hole depth measurement or sampling work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210677926.9A CN115030671B (en) | 2022-06-16 | 2022-06-16 | Multifunctional adjustable protective cover and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210677926.9A CN115030671B (en) | 2022-06-16 | 2022-06-16 | Multifunctional adjustable protective cover and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115030671A CN115030671A (en) | 2022-09-09 |
| CN115030671B true CN115030671B (en) | 2023-07-25 |
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| CN202210677926.9A Active CN115030671B (en) | 2022-06-16 | 2022-06-16 | Multifunctional adjustable protective cover and application method thereof |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206124076U (en) * | 2016-10-12 | 2017-04-26 | 北京盛信鑫源新型建材有限公司 | Protection device for polyurethane insulation board laminator |
| CN109403953B (en) * | 2018-11-16 | 2022-10-14 | 中铁三局集团有限公司 | Device and method for quickly and accurately measuring perpendicularity of drilled pile body |
| CN209741939U (en) * | 2019-01-31 | 2019-12-06 | 中国一冶集团有限公司 | Novel pile foundation counter rope measuring device |
| CN212154697U (en) * | 2020-04-13 | 2020-12-15 | 中建三局集团有限公司 | Protective device for preventing slurry from splashing outwards in impact drilling construction |
| CN214275305U (en) * | 2021-01-22 | 2021-09-24 | 陕西延长中煤榆林能源化工有限公司 | Prevent splashing and keep apart safety cover |
| CN112796690B (en) * | 2021-01-26 | 2024-06-11 | 中铁大桥局集团第六工程有限公司 | Mud splash-proof device for construction of punched bored pile and construction method |
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