CN111678505A - Freely-adjustable cantilever arm for contact measurement and operation method thereof - Google Patents
Freely-adjustable cantilever arm for contact measurement and operation method thereof Download PDFInfo
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- CN111678505A CN111678505A CN202010497578.8A CN202010497578A CN111678505A CN 111678505 A CN111678505 A CN 111678505A CN 202010497578 A CN202010497578 A CN 202010497578A CN 111678505 A CN111678505 A CN 111678505A
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- 238000005259 measurement Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 56
- 239000010959 steel Substances 0.000 claims description 56
- 238000013016 damping Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 7
- 238000000691 measurement method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
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Abstract
The invention belongs to the technical field of underground control measurement, and particularly relates to a freely-adjustable cantilever arm for contact measurement and an operation method thereof.
Description
Technical Field
The invention belongs to the technical field of underground control measurement, and particularly relates to a freely-adjustable cantilever arm for contact measurement and an operation method thereof.
Background
The connection measurement is to transmit a plane coordinate system and an elevation system of the ground to the ground, so that the ground and the underground can adopt the same coordinate reference and elevation reference for measurement, the connection measurement is generally applied to the aspect of mine vertical shaft penetration, and in underground engineering, in order to establish a unified coordinate system and elevation reference between the ground and the underground, the coordinate system and the elevation reference of the ground are transmitted to the ground through the drift, the inclined shaft and the vertical shaft; the method has the main functions of ensuring the correct construction of underground engineering according to design drawings and ensuring the penetration of tunnels (roadways); determining the relative position relationship between underground engineering (especially underground mining engineering) and ground buildings (structures), railways, rivers, lakes and the like to ensure the safety of the underground engineering and ground facilities; in summary, the prior art has the problems that in the existing contact measurement method, due to the fact that operation is complex, observation is difficult, workload is high, observation time is long, and construction progress and positioning lofting quality are affected.
Disclosure of Invention
The invention provides a freely-adjustable cantilever arm for contact measurement and an operation method thereof, and aims to solve the problems that the workload is large, the observation time is long, and the construction progress and the positioning lofting quality are influenced in the existing contact measurement method in the prior art due to the fact that the operation is complicated and the observation is difficult in the existing contact measurement method.
The technical problem solved by the invention is realized by adopting the following technical scheme: the utility model provides an arm of freely adjusting and hanging for contact measurement, includes flexible regulation main part device, flexible regulation main part device front end is connected steel wire weight device, flexible regulation main part device rear end is passed through the omnidirectional rotation device and is connected in wall body fixing device, flexible regulation main part device is including main telescopic adjusting rod and oblique telescopic adjusting rod, oblique telescopic adjusting rod passes through main telescopic adjusting rod of slip adjusting device diagonal bracing.
Furthermore, the sliding adjusting device comprises a sliding sleeve and a sleeve rotating shaft which is connected with the sliding sleeve in a rotating mode, the sliding sleeve is sleeved on the outer surface of the main telescopic adjusting rod in a sliding mode, and the sleeve rotating shaft is connected to the front end of the inclined telescopic adjusting rod.
Further, the omnidirectional rotating device comprises a vertical rotating device, the vertical rotating device comprises a main rotating shaft and an inclined rotating shaft, the rear end of the main telescopic adjusting rod is connected to one end of the horizontal rotating rod through the main rotating shaft in a rotating mode, and the inclined telescopic adjusting rod is connected to the other end of the horizontal rotating rod through the inclined rotating shaft in a rotating mode.
Furthermore, the omnidirectional rotating device also comprises a horizontal rotating device, the horizontal rotating device comprises a horizontal rotating rod, the outer surface of the horizontal rotating rod is limited in the upper hoop and the lower hoop on one side of the auxiliary splint, and the bottom end of the horizontal rotating rod is supported by the tray.
Further, the wall fixing device comprises an inverted U-shaped frame formed by connecting the main clamping plate to the auxiliary clamping plate through the adjusting rod device, and the inverted U-shaped frame is fixed on the wall through the fixed spiral buckling of the main clamping plate on one side of the wall.
Furthermore, the adjusting rod device adopts a telescopic length adjusting rod.
Further, the steel wire heavy hammer device comprises a heavy hammer, the heavy hammer is hung in a steel wire threading hole in the front end of the main telescopic adjusting rod through a steel wire, and the heavy hammer is arranged in the damping liquid barrel.
Furthermore, the aperture diameter of the steel wire threading hole is phi 0.5 mm.
Meanwhile, the invention also provides an operation method of the freely-adjustable cantilever arm for linkage measurement, which comprises the following steps:
s1: assembling the freely adjustable cantilever arm;
s2: assembling steel wires of the steel wire heavy hammer device: the steel wire penetrates through the assembled steel wire threading hole of the freely adjustable cantilever arm, and the length of the steel wire is adjusted to enable the bottom end of the steel wire to fall to the ground;
s3: fixing the wall fixing device: fixing an inverted U-shaped frame formed by connecting the main clamping plate to the auxiliary clamping plate through an adjusting rod device on a wall body by using a fixed screw;
s4: adjusting the telescopic adjusting main body device: the main telescopic adjusting rod is adjusted to be in a proper length, the inclined telescopic adjusting rod is adjusted in height according to needs, the sliding sleeve is fixed after the inclined telescopic adjusting rod is adjusted, the horizontal position of the main telescopic adjusting rod is determined by adjusting the rotating horizontal rotating rod, and the main telescopic adjusting rod is fixedly locked through the fixed screw.
S5: assembling a steel wire heavy hammer device: fixing the weight on the bottom end of the steel wire, adjusting the height of the steel wire, placing the fixed weight into a damping liquid barrel, and observing when the weight is static.
The invention has the beneficial effects that:
the invention adopts the structure that the front end of a telescopic adjusting main body device is connected with a steel wire heavy hammer device, the rear end of the telescopic adjusting main body device is connected with a wall fixing device through an omnidirectional rotating device, a main telescopic adjusting rod is connected with an inclined telescopic adjusting rod (telescopic adjusting main body device), the rear end of the inclined telescopic adjusting rod is provided with a rotating device, the rotating device is welded with a left rotating rod and a right rotating rod, a tray is arranged below the left rotating rod and the right rotating rod, the left rotating rod and the right rotating rod are fixed by a hoop and a clamping plate, the rear end of the main telescopic adjusting rod is provided with a rotating device, the rotating device is welded with the left rotating rod and the right rotating rod (omnidirectional rotating device), the clamping plate is connected with an auxiliary telescopic rod, a wall fixing screw (wall fixing device) is arranged above and below one side of the clamping plate, the weight is placed into the damping liquid barrel, and damping liquid (steel wire weight device) is filled into the damping liquid barrel.
Drawings
FIG. 1 is a schematic view of the overall structure of a free-adjustment cantilever arm for link measurement according to the present invention;
FIG. 2 is an enlarged partial view of the sliding sleeve of the free adjustment cantilever arm for linkage measurement of the present invention;
FIG. 3 is a partially enlarged view of a wire threading hole of a freely adjustable cantilever arm for linkage measurement according to the present invention;
FIG. 4 is a flow chart of a method of operation of a free-standing cantilever arm for link measurements in accordance with the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the figure: 1-telescopic adjustment main body device, 2-steel wire weight device, 3-omnidirectional rotating device, 4-wall body fixing device, 5-main telescopic adjusting rod, 6-inclined telescopic adjusting rod, 7-sliding sleeve, 8-sleeve rotating shaft, 9-main rotating shaft, 10-inclined rotating shaft, 11-horizontal rotating rod, 12-upper hoop, 13-lower hoop, 14-tray, 15-main splint, 16-auxiliary splint, 17-telescopic adjustment length rod, 18-fixed screw, 19-weight, 20-steel wire, 21-steel wire threading hole and 22-damping liquid barrel;
s101, assembling a freely adjustable cantilever arm;
s102, assembling steel wires of the steel wire heavy hammer device;
s103, fixing a wall fixing device;
s104, adjusting the telescopic adjusting main body device;
s105, assembling a heavy hammer of the steel wire heavy hammer device;
example (b):
example (b): as shown in fig. 1, a freely adjustable cantilever arm for contact measurement includes a telescopic main body device 1, the front end of the telescopic main body device 1 is connected to a steel wire weight device 2, and the rear end of the telescopic main body device 1 is connected to a wall fixing device 4 through an omnidirectional rotating device 3.
Because the front end of the telescopic adjusting main body device is connected with a steel wire heavy hammer device, the rear end of the telescopic adjusting main body device is connected with a wall fixing device through an omnidirectional rotating device, the main telescopic adjusting rod and an oblique telescopic adjusting rod are connected (telescopic adjusting main body device), the rear end of the oblique telescopic adjusting rod is provided with a rotating device, the rotating device is welded with a left rotating rod and a right rotating rod, a tray is arranged below the left rotating rod and the right rotating rod, the left rotating rod and the right rotating rod are fixed by a hoop and a splint, the rear end of the main telescopic adjusting rod is provided with the rotating device, the rotating device is welded with the left rotating rod and the right rotating rod (omnidirectional rotating device), the splint is connected with an auxiliary telescopic rod, a wall fixing screw (wall fixing device) is arranged above and below one side of the splint, the front end of the main, the weight is placed into the damping liquid barrel, and damping liquid (steel wire weight device) is filled into the damping liquid barrel.
The telescopic adjusting main body device 1 comprises a main telescopic adjusting rod 5 and an inclined telescopic adjusting rod 6, and the inclined telescopic adjusting rod 6 obliquely supports the main telescopic adjusting rod 5 through a sliding adjusting device.
Owing to adopt flexible regulation main part device includes main telescopic adjusting rod and oblique telescopic adjusting rod, oblique telescopic adjusting rod passes through the main telescopic adjusting rod of slip adjusting device diagonal bracing, because main telescopic adjusting rod be scalable regulation length pole, through the main telescopic adjusting rod of diagonal bracing, oblique telescopic adjusting rod be scalable regulation length pole, because main telescopic adjusting rod and oblique telescopic adjusting rod are telescopic adjusting rod, can conveniently adjust depth length, oblique telescopic adjusting rod front end be connected with rotating device, rotating device and main telescopic adjusting rod are connected, because the supporting role of oblique telescopic adjusting rod to main telescopic adjusting rod to form the triangle-shaped structure, such simple structure is convenient, fixed stable.
As shown in fig. 2, the sliding adjustment device includes a sliding sleeve 7 and a sleeve rotating shaft 8 rotatably connected to the sliding sleeve 7, the sliding sleeve 7 is slidably sleeved on the outer surface of the main telescopic adjusting rod 5, and the sleeve rotating shaft 8 is connected to the front end of the inclined telescopic adjusting rod 6.
Owing to adopt slide adjusting device includes the sliding sleeve and rotates the cover pivot of being connected rather than, slide in the sliding sleeve and cup joint in main telescopic adjusting rod surface, the cover pivot is connected in the front end of oblique telescopic adjusting rod, because be equipped with the sliding sleeve in the middle of the main telescopic adjusting rod, sliding sleeve and oblique telescopic adjusting rod are connected with rotating device, main telescopic adjusting rod in the middle of be equipped with the sliding sleeve, the sliding sleeve top is porose, clearing hole installation sliding sleeve mounting, the mounting is used for fixed sliding sleeve, the sliding sleeve below is equipped with rotating device, rotating device and oblique telescopic adjusting rod are connected, because the sliding connection effect of sliding sleeve and rather than the sliding sleeve of the cover pivot of rotating connection, can adjust oblique telescopic adjusting rod and highly adjust main telescopic adjusting rod as required.
The omnidirectional rotating device 3 comprises a vertical rotating device, the vertical rotating device comprises a main rotating shaft 9 and an inclined rotating shaft 10, the rear end of the main telescopic adjusting rod 5 is connected to one end of a horizontal rotating rod 11 through the main rotating shaft 9 in a rotating mode, and the inclined telescopic adjusting rod 6 is connected to the other end of the horizontal rotating rod 11 through the inclined rotating shaft 10 in a rotating mode.
The omni-directional rotating device 3 further includes a horizontal rotating device including a horizontal rotating rod 11, the outer surface of the horizontal rotating rod 11 is defined in an upper hoop 12 and a lower hoop 13 on one side of a sub-splint 16, and the bottom end thereof is supported by a tray 14.
Because the omnidirectional rotating device is adopted and also comprises a horizontal rotating device which comprises a horizontal rotating rod, the outer surface of the horizontal rotating rod is limited in an upper hoop and a lower hoop on one side of an auxiliary splint, the bottom end of the horizontal rotating rod is supported by a tray, the auxiliary splint is connected with the tray, the tray is used for supporting a left rotating rod and a right rotating rod, the auxiliary splint is connected with an upper hoop and a lower hoop, the two hoops are used for hooping the left rotating rod and the right rotating rod, the side direction of the upper hoop is provided with a hole, a fixing screw passes through the hole and is used for fixing the left rotating rod and the right rotating rod, the left rotating rod and the right rotating rod are connected with a rotating device and a rotating device, the rotating device is connected with a main telescopic adjusting rod, the rotating device is connected with an oblique telescopic adjusting rod, the left rotating rod and the right rotating, the main telescopic adjusting rod can be horizontally rotated left and right.
The wall fixing device 4 comprises an inverted U-shaped frame formed by connecting a main clamping plate 15 to an auxiliary clamping plate 16 through an adjusting rod device, and the inverted U-shaped frame is fastened and fixed on the wall through a fixing screw 18 of the main clamping plate 15 on one side of the wall.
Owing to adopt wall body fixing device includes to be connected in the type of falling U frame that the auxiliary splint formed through adjusting the pole device by the punch holder, the type of falling U frame is fixed in the wall body through the fixed spiral lock joint of wall body one side punch holder, because vice regulation pole be flexible regulation length pole, vice regulation pole both ends be connected with punch holder and auxiliary splint, the punch holder is equipped with two holes from top to bottom, the fixed spiral of downthehole installation, fixed spiral is used for the fixed of punch holder and wall body.
The adjusting rod device adopts a telescopic length adjusting rod 17.
Because the adjusting rod device adopts the telescopic adjusting length rod, the telescopic adjusting length rod can adjust the telescopic length, and the adjusting rod device can be suitable for walls with different specifications.
As shown in fig. 3, the wire weight device 2 includes a weight 19, the weight 19 is hung in a wire threading hole 21 at the front end of the main telescopic adjustment rod 5 through a wire 20, and the weight 19 is disposed in a damping fluid tank 22.
The aperture diameter of the steel wire threading hole 21 is phi 0.5 mm.
The heavy hammer is hung in a steel wire threading hole in the front end of the main telescopic adjusting rod through a steel wire, the heavy hammer is arranged in the damping liquid barrel, the aperture of the steel wire threading hole is phi 0.5mm, the steel wire threading hole is used for penetrating through the steel wire due to the fact that the steel wire threading hole with the diameter of phi 0.5mm is arranged in the front end of the main telescopic adjusting rod, the heavy hammer is fixed to the lower end of the steel wire, the heavy hammer is placed into the damping liquid barrel, and the damping liquid barrel is filled with damping liquid.
As shown in fig. 4, the present invention also provides a method of operating a freely adjustable cantilever arm for linked measurements, comprising:
s1: assembling the freely adjustable cantilever arm;
s2: the steel wire 20S 102 of the steel wire weight device 2: the steel wire 20 passes through the assembled steel wire threading hole 21 of the freely adjustable cantilever arm, and the length of the steel wire 20 is adjusted to ensure that the bottom end of the steel wire falls to the ground;
s3: fixing the wall fixing device 4S 103: an inverted U-shaped frame formed by connecting a main clamping plate 15 to an auxiliary clamping plate 16 through an adjusting rod device is fixed on a wall body by a fixing screw 18;
s4: adjusting the telescopic adjustment main body apparatus 1S 104: the main telescopic adjusting rod 5 is adjusted to a proper length, the inclined telescopic adjusting rod 6 is adjusted according to the needed height, the sliding sleeve 7 is fixed after the inclined telescopic adjusting rod 6 is adjusted, the horizontal position of the main telescopic adjusting rod 5 is determined by adjusting the rotating horizontal rotating rod 11, and the main telescopic adjusting rod is fixedly locked by the fixing screw 18.
S5: weight 19S 105 of the steel wire weight device 2: the weight 19 is fixed at the bottom end of the steel wire 20 and the height thereof is adjusted, the fixed weight 19 is placed into the damping liquid barrel 22, and the observation is started when the weight 19 is at rest.
The operation method comprises the steps that a steel wire penetrates through a steel wire threading hole, the length of the steel wire is adjusted to enable the steel wire to fall to the ground, a main clamping plate, an auxiliary adjusting rod, an auxiliary clamping plate and a wall body are fixed through a fixing screw, the main telescopic adjusting rod is adjusted to be in a proper length, an inclined telescopic adjusting rod is adjusted according to the requirement, a sliding sleeve is fixed after the inclined telescopic adjusting rod is adjusted, a left rotating rod and a right rotating rod are rotated according to left and right observation visual angles, the left rotating rod and the right rotating rod are fixed and locked through fixing screws after the main telescopic adjusting rod is adjusted, the height.
The working principle is as follows:
the invention connects a steel wire weight hammer device through the front end of the telescopic adjusting main body device, the rear end of the telescopic adjusting main body device is connected with a wall fixing device through an omnidirectional rotating device, because the main telescopic adjusting rod is connected with an inclined telescopic adjusting rod (telescopic adjusting main body device), the rear end of the inclined telescopic adjusting rod is provided with a rotating device, the rotating device is welded with a left rotating rod and a right rotating rod, a tray is arranged below the left rotating rod and the right rotating rod, the left rotating rod and the right rotating rod are fixed by a hoop and a clamping plate, the rear end of the main telescopic adjusting rod is provided with a rotating device, the rotating device is welded with the left rotating rod and the right rotating rod (omnidirectional rotating device), the clamping plate is connected with an auxiliary telescopic rod, a wall fixing screw (wall fixing device) is arranged above and below one side of the clamping plate, the front end, the invention solves the problems of large workload, long observation time and influence on construction progress and positioning lofting quality in the prior art because of complex operation and difficult observation in the prior contact measurement method, has simple structure, can adjust the cantilever arm left, right and up and down according to the condition of multiple changes of a construction site, is not influenced by construction machinery and construction materials, can provide a more spacious observation environment and faster observation speed, and effectively saves the construction time cost.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (9)
1. The utility model provides an arm of freely adjusting and hanging for contact measurement which characterized in that, includes flexible regulation main part device, flexible regulation main part device front end is connected steel wire weight device, flexible regulation main part device rear end is passed through the omnidirectional rotation device and is connected in wall body fixing device, flexible regulation main part device is including main telescopic adjusting pole and oblique telescopic adjusting pole, oblique telescopic adjusting pole passes through the main telescopic adjusting pole of slip adjusting device diagonal bracing.
2. The freely adjustable cantilever arm for linkage measurement as claimed in claim 1, wherein the sliding adjustment device comprises a sliding sleeve and a sleeve rotating shaft rotatably connected therewith, the sliding sleeve is slidably sleeved on the outer surface of the main telescopic adjusting rod, and the sleeve rotating shaft is connected to the front end of the inclined telescopic adjusting rod.
3. The freely adjustable cantilever arm for linkage measurement as claimed in claim 1, wherein the omni-directional rotation device comprises a vertical rotation device, the vertical rotation device comprises a main rotation shaft and a tilt rotation shaft, the rear end of the main telescopic adjusting rod is rotatably connected to one end of the horizontal rotation rod through the main rotation shaft, and the tilt telescopic adjusting rod is rotatably connected to the other end of the horizontal rotation rod through the tilt rotation shaft.
4. The free-adjustment cantilever arm for linkage measurement according to claim 3, wherein the omnidirectional rotation device further comprises a horizontal rotation device, the horizontal rotation device comprises a horizontal rotation rod, the outer surface of the horizontal rotation rod is defined in the upper hoop and the lower hoop on one side of the secondary splint, and the bottom end of the horizontal rotation rod is supported by the tray.
5. The freely adjustable cantilever arm for linkage measurement as claimed in claim 1, wherein the wall fixing device comprises an inverted U-shaped frame formed by connecting the main plate to the auxiliary plate through the adjusting rod device, and the inverted U-shaped frame is fastened and fixed to the wall through a fixing screw of the main plate on one side of the wall.
6. A freely adjustable cantilever arm for use in connection with measurements according to claim 5, wherein the adjustment lever means employs a telescopic length adjustment lever.
7. The freely adjustable cantilever arm for linkage measurement as claimed in claim 1, wherein the wire weight device comprises a weight suspended by a wire in a wire passing hole at the front end of the main telescopic adjustment rod, the weight being disposed in the damping fluid barrel.
8. A freely adjustable cantilever arm for use in connection with measurements according to claim 7, wherein the wire threading hole has a diameter of 0.5 mm.
9. A method of operating a free-standing cantilever arm for linked measurements, comprising:
s1: assembling a freely adjustable cantilever arm according to claim 1 to claim 9;
s2: assembling steel wires of the steel wire heavy hammer device: the steel wire penetrates through the assembled steel wire threading hole of the freely adjustable cantilever arm, and the length of the steel wire is adjusted to enable the bottom end of the steel wire to fall to the ground;
s3: fixing the wall fixing device: fixing an inverted U-shaped frame formed by connecting the main clamping plate to the auxiliary clamping plate through an adjusting rod device on a wall body by using a fixed screw;
s4: adjusting the telescopic adjusting main body device: adjusting the main telescopic adjusting rod to a proper length, adjusting the inclined telescopic adjusting rod according to the required height, fixing the sliding sleeve after adjusting the inclined telescopic adjusting rod, determining the horizontal position of the main telescopic adjusting rod by adjusting the rotating horizontal rotating rod, and fixedly locking the main telescopic adjusting rod by a fixed screw;
s5: assembling a steel wire heavy hammer device: fixing the weight on the bottom end of the steel wire, adjusting the height of the steel wire, placing the fixed weight into a damping liquid barrel, and observing when the weight is static.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497578.8A CN111678505A (en) | 2020-06-04 | 2020-06-04 | Freely-adjustable cantilever arm for contact measurement and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497578.8A CN111678505A (en) | 2020-06-04 | 2020-06-04 | Freely-adjustable cantilever arm for contact measurement and operation method thereof |
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| Publication Number | Publication Date |
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| CN111678505A true CN111678505A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010497578.8A Pending CN111678505A (en) | 2020-06-04 | 2020-06-04 | Freely-adjustable cantilever arm for contact measurement and operation method thereof |
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| CN (1) | CN111678505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144540A (en) * | 2020-09-24 | 2020-12-29 | 中国五冶集团有限公司 | Foundation pit support guniting construction dustproof structure and using method thereof |
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| CN204255359U (en) * | 2014-12-24 | 2015-04-08 | 中国葛洲坝集团股份有限公司 | A kind of auxiliary support apparatus being applicable to the hidden measurement of biprism |
| CN109115193A (en) * | 2018-08-13 | 2019-01-01 | 中铁七局集团西安铁路工程有限公司 | A kind of adjustable connection survey device |
| CN209085571U (en) * | 2018-11-13 | 2019-07-09 | 北京市政建设集团有限责任公司 | A kind of detachable hanging steel wire device for connection survey |
| CN212206080U (en) * | 2020-06-04 | 2020-12-22 | 中铁六局集团呼和浩特铁路建设有限公司 | Freely-adjusted cantilever arm for contact measurement |
-
2020
- 2020-06-04 CN CN202010497578.8A patent/CN111678505A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204255359U (en) * | 2014-12-24 | 2015-04-08 | 中国葛洲坝集团股份有限公司 | A kind of auxiliary support apparatus being applicable to the hidden measurement of biprism |
| CN109115193A (en) * | 2018-08-13 | 2019-01-01 | 中铁七局集团西安铁路工程有限公司 | A kind of adjustable connection survey device |
| CN209085571U (en) * | 2018-11-13 | 2019-07-09 | 北京市政建设集团有限责任公司 | A kind of detachable hanging steel wire device for connection survey |
| CN212206080U (en) * | 2020-06-04 | 2020-12-22 | 中铁六局集团呼和浩特铁路建设有限公司 | Freely-adjusted cantilever arm for contact measurement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144540A (en) * | 2020-09-24 | 2020-12-29 | 中国五冶集团有限公司 | Foundation pit support guniting construction dustproof structure and using method thereof |
| CN112144540B (en) * | 2020-09-24 | 2022-02-11 | 中国五冶集团有限公司 | Foundation pit support guniting construction dustproof structure and using method thereof |
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