CN211573509U - Engineering supervision is with stake hole aperture and hole depth detection device - Google Patents
Engineering supervision is with stake hole aperture and hole depth detection device Download PDFInfo
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- CN211573509U CN211573509U CN202020033451.6U CN202020033451U CN211573509U CN 211573509 U CN211573509 U CN 211573509U CN 202020033451 U CN202020033451 U CN 202020033451U CN 211573509 U CN211573509 U CN 211573509U
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Abstract
Engineering supervision is with stake hole aperture and hole depth detection device, landing leg and the level setting including four perpendicular settings are equipped with the frame in the landing leg upper end, the lower extreme of every landing leg all is equipped with an universal wheel, the center department of frame is provided with electric block, the last lifting hook that winding wire rope lifted by crane the end of electric block is connected with the pneumatic flexible caliber, be equipped with battery and air pump on the frame, the main trachea of passing through of air pump with there be the pneumatic flexible caliber to be connected, be equipped with the relief pressure valve along the air current direction on the main trachea in proper order, check valve and discharge valve, the battery is electric block and air pump power supply. The utility model relates to a novelty, compact structure, can once only measure aperture, the hole depth in stake hole and the circularity in stake hole, but the reading once only, it is higher to measure vertical accuracy to have higher fail safe nature.
Description
Technical Field
The utility model belongs to the technical field of civil engineering detects, concretely relates to engineering is managed with stake hole aperture and hole depth detection device.
Background
When foundation construction of civil engineering (including buildings, bridges and viaducts) is carried out, a foundation pit is generally dug firstly, pile holes are formed at the bottom of the foundation pit, reinforcement cages are arranged in the pile holes after the pile holes are formed, and then concrete is poured to form a column foundation. The strength of the pile foundation depends on the aperture and the depth of the pile hole, and the aperture of the pile hole is required to be measured after the pile hole is formed and responsible for supervision and management of construction quality. At present, supervision generally adopts a measuring tape to measure the aperture in different directions, for a plurality of numerical values, the largest numerical value is taken as the diameter of a pile hole, and for the depth, a cord is adopted to connect the cord to fall downwards along the pile hole until the cord falls to the bottom of the pile hole, and then the length of the cord in the pile hole is measured. The mode for detecting the aperture and the hole depth is simple to operate, particularly, the size of the aperture cannot determine the circle center, so that the detection result is inaccurate, and in addition, supervision personnel carry out manual operation on the edge of the pile hole, so that the method has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a engineering supervision is with stake hole aperture and hole depth detection device that detects numerical value accuracy, fail safe nature is strong.
In order to solve the technical problem, the utility model adopts the following technical scheme: engineering supervision is with stake hole aperture and hole depth detection device, landing leg and the level setting including four perpendicular settings are equipped with the frame in the landing leg upper end, the lower extreme of every landing leg all is equipped with an universal wheel, the center department of frame is provided with electric block, the last lifting hook that winding wire rope lifted by crane the end of electric block is connected with the pneumatic flexible caliber, be equipped with battery and air pump on the frame, the main trachea of passing through of air pump with there be the pneumatic flexible caliber to be connected, be equipped with the relief pressure valve along the air current direction on the main trachea in proper order, check valve and discharge valve, the battery is electric block and air pump power supply.
The pneumatic telescopic measurer comprises a vertically arranged sleeve, the upper end of the sleeve is hung on a lifting hook through a connecting piece, four cylinders are uniformly arranged on the periphery of the lower part of the sleeve along the circumferential direction, the cylinder body ends of the four cylinders are rotatably connected to the front side, the rear side, the left side and the right side of the outside of the sleeve through hinges, and limiting baffles are horizontally arranged below the four hinges at the outer circular part of the sleeve; when the four cylinders rotate to the horizontal state, the central lines of the four cylinders all extend along the radial direction of the sleeve, and the bottoms of the cylinder bodies of the four cylinders are supported on the upper surface of the limiting baffle; an arc-shaped plate is fixedly arranged at the outer end of a piston rod of each air cylinder, an air guide pipe is arranged on the outer side of the sleeve pipe along the vertical direction, the upper end of the air guide pipe is connected with an air outlet of the main air pipe, the lower end of the air guide pipe is connected with a five-way pipe joint, and the other four interfaces of the five-way pipe joint are respectively connected with the lower part of a cylinder body of the air cylinder through a branch hose; the sleeve is internally provided with a tape measure telescopic device which is respectively connected with the four arc-shaped plates.
The flexible tape extending device comprises a mounting box fixedly arranged in a sleeve, two lower scroll shafts arranged at left and right intervals and two upper scroll shafts arranged at front and back intervals are arranged in the mounting box in a rotating manner, the two lower scroll shafts are positioned below the two upper scroll shafts, the central line of the lower scroll shafts is horizontally arranged along the front and back direction, the central line of the upper scroll shafts is horizontally arranged along the left and right direction, torsion springs are respectively arranged between the lower scroll shafts, the upper scroll shafts and the lower scroll shafts, flexible tape measures are respectively wound on the mounting box and the sleeve, through holes corresponding to the two upper scroll shafts and the two lower scroll shafts are correspondingly formed in the mounting box and the sleeve, the flexible tape measures wound on the lower scroll shafts penetrate through the through holes at the lower parts and are correspondingly connected to the middle of the upper side edges of the arc plates at the left and right sides of the sleeve, the through holes, the upper side edges of the arc-shaped plates at the front side and the rear side are higher than the arc-shaped plates at the left side and the right side, 0 scale of the flexible tape measure corresponds to the outer arc surface of the arc-shaped plates, and each flexible tape measure extending out of the perforation part is parallel to one cylinder and is positioned above the cylinder.
The connecting piece includes that level and fixed connection are at the terminal pad of sleeve pipe upper end, is equipped with four connecting holes of evenly arranging along the sleeve pipe central line on the terminal pad, is equipped with a connection rope between two relative connecting holes, and the middle part of two connection ropes all articulates on the lifting hook.
The lower end of the sleeve is horizontally provided with a blocking plate.
The steel wire rope is provided with a hole depth measuring scale by adopting paint, and the 0 scale of the hole depth measuring scale is the lower surface of the blocking plate.
By adopting the technical scheme, when the utility model is used, four support legs are respectively arranged at the periphery of a pile hole, piston rods of four cylinders are under the action of a torsion spring, an upper scroll and a lower scroll pull an arc plate through a flexible tape measure to enable a telescopic rod to retract into a cylinder body, the four support legs are moved, a universal wheel moves on the ground to enable a sleeve to approximately align with the central line of the pile hole, then an electric hoist is started, a pneumatic telescopic measurer hung on a hook of a steel wire rope on the electric hoist moves downwards to enter the pile hole, the electric hoist is closed when the pneumatic telescopic measurer enters the pile hole by 50cm-100cm, then an air pump is started, the air pump inflates the cylinder bodies of the four cylinders through a pressure reducing valve, the air pressure in the cylinder bodies of the four cylinders is increased, the torsion forces of the four torsion springs are overcome, the four telescopic rods are driven to simultaneously extend along the radial, because the air pressure in the four cylinders is equal, the models of the four torsion springs are also the same, and therefore the extension lengths of the four telescopic rods are equal, namely the four telescopic rods can be automatically adjusted in the pile hole to enable the central line of the sleeve to coincide with the central line of the pile hole, after the steel wire rope on the telescopic rods is pulled to incline, the four support legs are moved to enable the steel wire rope to keep a vertical state, the air pump is closed until the four arc-shaped plates are in contact with the inner wall of the pile hole, the air pressure in the cylinder body is kept constant due to the arrangement of the one-way valves, then scales corresponding to the outer sides of the four flexible tape measures and the sleeve are observed, and if four numerical values are basically equal. And then the connecting disc is rotated by about 30-60 degrees, so that the four cylinders and the arc-shaped plates in the pile hole can be driven to rotate, the degree of the flexible measuring tape is read again, if the reading is basically unchanged, the roundness of the pile hole is qualified, and if the reading changes greatly, the roundness of the pile hole is unqualified. After the detection of stake hole aperture is accomplished, open discharge valve, the gaseous exhaust in the cylinder, under four torsion spring's effect, flexible tape measure is twined on two last spools and two lower reels, stimulates four arcs simultaneously, makes the telescopic link retract into the cylinder body of cylinder. Then start electric block and promote the stake hole top with pneumatic flexible caliber, upwards rotate four cylinders with the sleeve pipe after, it is integrative with the sleeve pipe to use the rope to bind four cylinder ligatures, then restart electric block, pneumatic flexible caliber is under the effect of self gravity, along the central line downstream in stake hole, when the closure plate of sleeve pipe lower extreme contacts bottom the stake hole, wire rope relaxes, read the hole depth measurement scale that wire rope and drill way plane correspond this moment, just so conveniently also measure the stake hole depth of depth. After the measurement is finished, the electric hoist is started to lift the pneumatic telescopic measurer to the ground.
Because the utility model discloses do not need too high atmospheric pressure, consequently set up the relief pressure valve on main trachea, the extension that also can make the telescopic link of setting up of relief pressure valve keeps the uniform velocity. The four flexible measuring tapes have the function of measuring the aperture of the pile hole and also have the function of drawing the arc-shaped plate through the torsion spring to enable the telescopic rod to retract into the cylinder body.
The arrangement of the connecting disc and the four hoisting connection points can improve the balance keeping effect of the pneumatic telescopic measurer.
Two upper reels and two lower reels arranged in a mounting box of the tape measure telescopic device are arranged in a vertically staggered manner, so that flexible tape measures wound on the upper reels and the lower reels cannot influence each other.
The four cylinders can be folded upwards, and even if the steel wire rope shakes during hole depth measurement, the pneumatic telescopic measurer can be ensured to move up and down smoothly in the pile hole. In addition, when the pneumatic telescopic measurer is taken down from the movable lifting hook, the volume of transportation and storage can be reduced.
The four supporting legs can provide walking support for a proctor in the detection process, so that the safety of detection operation is improved.
To sum up, the utility model relates to a novelty, compact structure, the circularity in aperture, the hole depth and the stake hole in stake hole that can once only measure the stake hole can once only read, and it is higher to measure vertical accuracy to have higher fail safe nature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of the pneumatic telescopic measurer of FIG. 1;
fig. 3 is a top view from a-a in fig. 2.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses an engineering is managed and is used stake hole aperture and hole depth detection device, landing leg 1 and the level setting including four perpendicular settings are equipped with frame 2 in landing leg 1 upper end, the lower extreme of every landing leg 1 all is equipped with an universal wheel 3, the center department of frame 2 is provided with electric block 4, winding wire rope 5 lifts by crane the lifting hook 6 of end on electric block 4 is connected with pneumatic flexible caliber 7, be equipped with battery 8 and air pump 9 on the frame 2, air pump 9 through main trachea 20 with have pneumatic flexible caliber 7 to be connected, be equipped with relief pressure valve 10 along the air current direction on the main trachea 20 in proper order, check valve 11 and discharge valve 12, battery 8 is the power supply of electric block 4 and air pump 9.
The pneumatic telescopic measurer 7 comprises a vertically arranged sleeve 13, the upper end of the sleeve 13 is hung on the lifting hook 6 through a connecting piece 14, four cylinders 15 are uniformly arranged on the periphery of the lower part of the sleeve 13 along the circumferential direction, the cylinder body end parts of the four cylinders 15 are rotatably connected to the front side, the rear side, the left side and the right side of the outer part of the sleeve 13 through hinges 16, and limit baffles 17 are horizontally arranged below the four hinges 16 on the outer circle part of the sleeve 13; when the four cylinders 15 rotate to the horizontal state, the center lines of the four cylinders 15 all extend along the radial direction of the sleeve 13, and the bottom parts of the cylinder bodies of the four cylinders 15 are supported on the upper surface of the limit baffle 17; an arc-shaped plate 18 is fixedly arranged at the outer end of a piston rod of each air cylinder 15, an air guide pipe 19 is arranged on the outer side of the sleeve 13 along the vertical direction, the upper end of the air guide pipe 19 is connected with an air outlet of a main air pipe 20, the lower end of the air guide pipe 19 is connected with a five-way pipe joint 21, and the other four interfaces of the five-way pipe joint 21 are respectively connected with the lower part of a cylinder body of the air cylinder 15 through branch hoses 22; the sleeve 13 is internally provided with a tape measure telescopic device which is respectively connected with the four arc-shaped plates 18.
The tape measure telescopic device comprises a mounting box 23 fixedly arranged in the sleeve 13, two lower reels 24 arranged at left and right intervals and two upper reels 25 arranged at front and back intervals are rotationally arranged in the mounting box 23, the two lower reels 24 are positioned below the two upper reels 25, the central line of the lower reel 24 is horizontally arranged along the front and back direction, the central line of the upper reel 25 is horizontally arranged along the left and right direction, torsion springs (not shown in the figure) are arranged between the lower reels 24 and the inner walls of the mounting box 23 as well as between the upper reels 25 and the upper reels 25, flexible tape measures 26 are wound on the upper reels 25 and the lower reels 24, through holes 27 corresponding to the two upper reels 25 and the two lower reels 24 are correspondingly arranged on the mounting box 23 and the sleeve, the flexible tape measures 26 wound on the lower reels 24 penetrate through the through holes 27 at the lower parts and are correspondingly connected to the middles of the upper side edges of the arc-shaped plates 18 at the left and the right sides of the sleeve 13, and the flexible tape measures 26 The upper sides of the front and rear arc plates 18 are higher than the left and right arc plates 18, the 0 scale of the flexible tape 26 corresponds to the outer arc surface of the arc plates 18, and each part of the flexible tape 26 extending out of the through hole 27 is parallel to one cylinder 15 and is positioned above the cylinder 15.
The connecting piece 14 comprises a connecting disc 28 which is horizontally and fixedly connected to the upper end of the sleeve 13, four connecting holes which are uniformly distributed along the central line of the sleeve 13 are formed in the connecting disc 28, a connecting rope 29 is arranged between two opposite connecting holes, and the middle parts of the two connecting ropes 29 are all hung on the lifting hook 6.
The lower end of the sleeve 13 is horizontally provided with a blocking plate 30.
The steel wire rope 5 is provided with a hole depth measuring scale by adopting paint, and the scale 0 of the hole depth measuring scale is the lower surface of the blocking plate 30.
When the utility model is used, four supporting legs 1 are respectively arranged at the periphery of a pile hole, piston rods of four cylinders 15 are under the action of a torsion spring, an upper scroll 25 and a lower scroll 24 pull an arc plate 18 through a flexible tape 26 to enable a telescopic rod to retract into a cylinder body, four supporting legs 1 are moved, a universal wheel 3 moves on the ground to enable a sleeve 13 to approximately align with the central line of the pile hole, then an electric hoist 4 is started, a pneumatic telescopic measurer 7 hung on a hook 6 of a steel wire rope 5 on the electric hoist 4 moves downwards to enter the pile hole, the electric hoist 4 is closed when 50cm-100cm enters the pile hole, then an air pump 9 is started, the air pump 9 is used for inflating the torsion cylinders of the four cylinders 15 through a pressure reducing valve 10, the air pressure in the cylinder bodies of the four cylinders 15 is increased, the torsion forces of the four springs are overcome, four telescopic rods are driven to simultaneously extend along the, the flexible tape measures 26 are pulled out outwards, air pressures in the four air cylinders 15 are equal, and models of the four torsion springs are also equal, so that the extending lengths of the four telescopic rods are equal, namely the four telescopic rods can be automatically adjusted in a pile hole to enable the center line of the sleeve 13 to coincide with the center line of the pile hole, after the steel wire rope 5 on the telescopic rods is pulled to incline, the four support legs 1 are moved to enable the steel wire rope 5 to keep a vertical state, after the four arc-shaped plates 18 are all in contact with the inner wall of the pile hole, the air pump 9 is closed, the air pressure in the cylinder body is kept constant due to the arrangement of the one-way valves 11, then scales corresponding to the four flexible tape measures 26 and the outer side of the sleeve 13 are observed, and if four numerical values are basically. And then the connecting disc is rotated by about 2830-60 degrees, so that the four cylinders 15 and the arc-shaped plates 18 in the pile hole can be driven to rotate, the degree of the flexible measuring tape 26 is read again, if the reading is basically unchanged, the roundness of the pile hole is qualified, and if the reading changes greatly, the roundness of the pile hole is unqualified. After the detection of the aperture of the pile hole is completed, the exhaust valve 12 is opened, the gas in the cylinder 15 is exhausted, the flexible tape 26 is wound on the two upper winding shafts 25 and the two lower winding shafts 24 under the action of the four torsion springs, and the four arc-shaped plates 18 are pulled simultaneously, so that the telescopic rod retracts into the cylinder body of the cylinder 15. Then start electric block 4 and promote pneumatic flexible caliber 7 to stake hole top, upwards rotate four cylinders 15 to contact back with sleeve pipe 13, use the rope to bind four cylinders 15 and integrative with sleeve pipe 13, then restart electric block 4, pneumatic flexible caliber 7 is under the effect of self gravity, along the central line downstream of stake hole, when closure plate 30 and the contact of stake hole bottom of sleeve pipe 13 lower extreme, wire rope 5 relaxs, read wire rope 5 and the hole depth measurement scale that the drill way plane corresponds this moment, just so very conveniently also measure the stake hole depth. After the measurement is finished, the electric hoist 4 is started to lift the pneumatic telescopic measurer 7 to the ground.
Because the utility model discloses do not need too high atmospheric pressure, consequently set up relief pressure valve 10 on main trachea 20, the extension of telescopic link also can be kept the constant speed to the setting of relief pressure valve 10. The four flexible measuring tapes 26 have the function of measuring the aperture of the pile hole and also have the function of retracting the telescopic rod into the cylinder body by pulling the arc-shaped plate 18 through the torsion springs.
The arrangement of the connecting disc 28 and the arrangement of four hoisting connecting points can improve the balance keeping effect of the pneumatic telescopic measurer 7.
The two upper reels 25 and the two lower reels 24 provided in the tape measure extension and retraction device mounting case 23 are staggered up and down so that the flexible tape measures 26 wound around the upper reels 25 and the lower reels 24 do not interfere with each other.
The four cylinders 15 can also be folded upwards, and even if the steel wire rope 5 shakes during hole depth measurement, the pneumatic telescopic measurer 7 can be ensured to move up and down smoothly in the pile hole. In addition, when the pneumatic telescopic measuring device 7 is taken down from the movable hook 6, the volume for transportation and storage can be reduced.
The four supporting legs 1 can provide walking support for a proctor in the detection process, so that the safety of detection operation is improved.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (6)
1. Engineering supervision is with stake hole aperture and hole depth detection device, its characterized in that: landing leg and the level setting including four perpendicular settings are equipped with the frame in the landing leg upper end, the lower extreme of every landing leg all is equipped with a universal wheel, the center department of frame is provided with electric block, electric block goes up the lifting hook of winding wire rope lifting end and is connected with the pneumatic flexible caliber, be equipped with battery and air pump on the frame, the air pump through main trachea with have the pneumatic flexible caliber to be connected, be equipped with the relief pressure valve along the air current direction on the main trachea in proper order, check valve and discharge valve, the battery is electric block and air pump power supply.
2. The pile hole aperture and hole depth detection device for engineering supervision according to claim 1, characterized in that: the pneumatic telescopic measurer comprises a vertically arranged sleeve, the upper end of the sleeve is hung on a lifting hook through a connecting piece, four cylinders are uniformly arranged on the periphery of the lower part of the sleeve along the circumferential direction, the cylinder body ends of the four cylinders are rotatably connected to the front side, the rear side, the left side and the right side of the outside of the sleeve through hinges, and limiting baffles are horizontally arranged below the four hinges at the outer circular part of the sleeve; when the four cylinders rotate to the horizontal state, the central lines of the four cylinders all extend along the radial direction of the sleeve, and the bottoms of the cylinder bodies of the four cylinders are supported on the upper surface of the limiting baffle; an arc-shaped plate is fixedly arranged at the outer end of a piston rod of each air cylinder, an air guide pipe is arranged on the outer side of the sleeve pipe along the vertical direction, the upper end of the air guide pipe is connected with an air outlet of the main air pipe, the lower end of the air guide pipe is connected with a five-way pipe joint, and the other four interfaces of the five-way pipe joint are respectively connected with the lower part of a cylinder body of the air cylinder through a branch hose; the sleeve is internally provided with a tape measure telescopic device which is respectively connected with the four arc-shaped plates.
3. The pile hole aperture and hole depth detection device for engineering supervision according to claim 2, characterized in that: the flexible tape extending device comprises a mounting box fixedly arranged in a sleeve, two lower scroll shafts arranged at left and right intervals and two upper scroll shafts arranged at front and back intervals are arranged in the mounting box in a rotating manner, the two lower scroll shafts are positioned below the two upper scroll shafts, the central line of the lower scroll shafts is horizontally arranged along the front and back direction, the central line of the upper scroll shafts is horizontally arranged along the left and right direction, torsion springs are respectively arranged between the lower scroll shafts, the upper scroll shafts and the lower scroll shafts, flexible tape measures are respectively wound on the mounting box and the sleeve, through holes corresponding to the two upper scroll shafts and the two lower scroll shafts are correspondingly formed in the mounting box and the sleeve, the flexible tape measures wound on the lower scroll shafts penetrate through the through holes at the lower parts and are correspondingly connected to the middle of the upper side edges of the arc plates at the left and right sides of the sleeve, the through holes, the upper side edges of the arc-shaped plates at the front side and the rear side are higher than the arc-shaped plates at the left side and the right side, 0 scale of the flexible tape measure corresponds to the outer arc surface of the arc-shaped plates, and each flexible tape measure extending out of the perforation part is parallel to one cylinder and is positioned above the cylinder.
4. The pile hole diameter and hole depth detection device for engineering supervision according to claim 2 or 3, characterized in that: the connecting piece includes that level and fixed connection are at the terminal pad of sleeve pipe upper end, is equipped with four connecting holes of evenly arranging along the sleeve pipe central line on the terminal pad, is equipped with a connection rope between two relative connecting holes, and the middle part of two connection ropes all articulates on the lifting hook.
5. The pile hole diameter and hole depth detection device for engineering supervision according to claim 2 or 3, characterized in that: the lower end of the sleeve is horizontally provided with a blocking plate.
6. The pile hole diameter and hole depth detection device for engineering supervision according to claim 5, characterized in that: the steel wire rope is provided with a hole depth measuring scale by adopting paint, and the 0 scale of the hole depth measuring scale is the lower surface of the blocking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020033451.6U CN211573509U (en) | 2020-01-08 | 2020-01-08 | Engineering supervision is with stake hole aperture and hole depth detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020033451.6U CN211573509U (en) | 2020-01-08 | 2020-01-08 | Engineering supervision is with stake hole aperture and hole depth detection device |
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| Publication Number | Publication Date |
|---|---|
| CN211573509U true CN211573509U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020033451.6U Expired - Fee Related CN211573509U (en) | 2020-01-08 | 2020-01-08 | Engineering supervision is with stake hole aperture and hole depth detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211573509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541491A (en) * | 2022-01-27 | 2022-05-27 | 中铁十六局集团南方工程有限公司 | Drilling quick measurement positioning auxiliary tool for pile-forming construction of foundation cement mixing pile |
| CN117889725A (en) * | 2024-03-15 | 2024-04-16 | 合肥工大共达工程检测试验有限公司 | Pile foundation hole fixed-point detection device and method for civil pile foundation construction |
-
2020
- 2020-01-08 CN CN202020033451.6U patent/CN211573509U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541491A (en) * | 2022-01-27 | 2022-05-27 | 中铁十六局集团南方工程有限公司 | Drilling quick measurement positioning auxiliary tool for pile-forming construction of foundation cement mixing pile |
| CN114541491B (en) * | 2022-01-27 | 2023-08-22 | 中铁十六局集团南方工程有限公司 | Drilling quick measuring and positioning auxiliary tool for pile forming construction of foundation cement mixing piles |
| CN117889725A (en) * | 2024-03-15 | 2024-04-16 | 合肥工大共达工程检测试验有限公司 | Pile foundation hole fixed-point detection device and method for civil pile foundation construction |
| CN117889725B (en) * | 2024-03-15 | 2024-07-05 | 合肥工大共达工程检测试验有限公司 | Pile foundation hole fixed-point detection device and method for civil pile foundation construction |
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