CN111879284A - Ground subsidence measuring device - Google Patents
Ground subsidence measuring device Download PDFInfo
- Publication number
- CN111879284A CN111879284A CN202010731759.2A CN202010731759A CN111879284A CN 111879284 A CN111879284 A CN 111879284A CN 202010731759 A CN202010731759 A CN 202010731759A CN 111879284 A CN111879284 A CN 111879284A
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- supporting arm
- subsidence
- hollow sleeve
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- supporting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- 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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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a ground subsidence measuring device relates to road measurement's technical field, and it is including placing the cavity sleeve pipe in subsidence department, it is connected with a plurality of to support the peripheral subaerial support arm structure in subsidence department with the cavity sleeve pipe to rotate on the cavity sleeve pipe, be provided with the bearing structure of fixed support arm structure corner between the cavity sleeve pipe support arm structure, cavity sleeve pipe top is provided with the sounding structure of measuring the depth of subsidence department degree of depth and measures the diameter measuring structure of subsidence department internal diameter, cavity sleeve pipe top is equipped with the actuating mechanism that drives sounding structure and diameter measuring structure and move in vertical direction, the last equal fixedly connected with transmission actuating mechanism power's of sounding structure and diameter measuring structure transmission structure. The volume of the subsidence position is calculated by measuring the depth and the width of the subsidence position, and the volume has the effect of calculating the required material of the subsidence position.
Description
Technical Field
The application relates to the technical field of road measurement, in particular to a ground subsidence measuring device.
Background
The road fall subsidence phenomenon has been paid more and more attention to the safety influence of vehicles running at high speed, and in the current industry, for the measurement of road subsidence, a professional measurer usually operates civil engineering measuring instruments such as a theodolite and a level gauge and performs measurement in a manual operation mode to obtain the fall subsidence condition and the fall subsidence value of each road section.
With the development of science and technology, the aspect of road measuring equipment is continuously developed and advanced, wherein the road settlement measuring device is widely used, but the road settlement measuring device on the market still has the defects of complex structure, troublesome measurement and carrying, and incapability of completing the measurement in a short time.
Disclosure of Invention
To the not enough that prior art exists, this application aims at providing a ground subsidence measuring device, through the degree of depth and the width of measuring the position of subsiding, calculates the volume of position of subsiding, and it has the effect of calculating the required material in position of subsiding.
The above object of the present application is achieved by the following technical solutions:
the utility model provides a ground subsidence measuring device, is including placing the cavity sleeve pipe in the subsidence department, it is connected with a plurality of to rotate on the cavity sleeve pipe and supports the peripheral subaerial support arm structure in the subsidence department with the cavity sleeve pipe, be provided with the bearing structure of fixed support arm structure corner between the cavity sleeve pipe support arm structure, cavity sleeve pipe top is provided with the sounding structure of measuring the depth of subsidence department degree of depth and measures the diameter measuring structure of subsidence department internal diameter, cavity sleeve pipe top is equipped with the actuating mechanism who drives sounding structure and diameter measuring structure and move in vertical direction, equal fixedly connected with transmits the transmission structure of actuating mechanism power on sounding structure and the diameter measuring structure.
By adopting the technical scheme, the supporting arm structure is rotatably arranged on the hollow sleeve, the hollow sleeve is supported at the sunken part by the supporting arm structure, the supporting arm structure is propped open by the supporting arm structure, the depth measuring structure measures the depth of the sunken part, the diameter measuring structure measures the inner diameter of the sunken part, the volume of the sunken part is calculated according to a formula, the driving mechanism drives the transmission structure, the transmission structure transmits power to the depth measuring structure and the diameter measuring structure, the supporting arm structure is propped open by the supporting structure when the sunken part is measured, and the depth measuring structure and the diameter measuring structure are unfolded by the driving mechanism; when the measurement is completed, the supporting structure is retracted, the supporting arm structure is retracted, the depth measuring structure and the diameter measuring structure are retracted by the driving mechanism, the purpose of carrying is achieved, the size of the subsidence position is calculated by measuring the depth and the width of the subsidence position, and the depth measuring mechanism has the effect of calculating materials required by the subsidence position.
The present application may be further configured in a preferred example to: the depth measurement structure comprises a rotating ring arranged on the driving mechanism, a scale band surrounding the rotating ring and a plumb instrument fixed at one end of the scale band.
Through adopting above-mentioned technical scheme, drive structure drives the swivel and rotates, and the rotation of swivel drives the scale band and expandes or packs up, and when expanding, the plumb appearance is under self action of gravity, and the plumb appearance straightens the scale band, and when the plumb appearance fell to the bottom of subsidence department, read out the numerical value on the scale band this moment, this numerical value just is the degree of depth of subsidence department.
The present application may be further configured in a preferred example to: the diameter measuring structure comprises a rotary disc arranged on the driving mechanism, a traction rope surrounding the rotary disc and a laser range finder fixed at one end of the traction rope.
By adopting the technical scheme, the driving mechanism drives the rotary table to rotate, the rotary table rotates to drive the traction rope to unfold or fold, and when the traction rope is unfolded, the radius of the inner wall of the subsidence part is measured by the laser range finder, and the measured data is averaged.
The present application may be further configured in a preferred example to: the support arm structure comprises a first support arm rotationally connected with the hollow sleeve, a second support arm telescopically connected in the first support arm, a third support arm telescopically connected in the second support arm and a fourth support arm telescopically connected in the third support arm; the first support arm, the second support arm, the third support arm and the fourth support arm are sequentially connected end to end.
Through adopting above-mentioned technical scheme, when measuring the volume of subsidence department, expand first support arm, second support arm, third support arm and fourth support arm in proper order, satisfy the needs that support to hollow sleeve to according to the unsmooth condition of earth's surface, adjust the extension length of support arm structure.
The present application may be further configured in a preferred example to: the supporting structure comprises a supporting rod, a plurality of first clamping pieces fixed on the outer wall of the hollow sleeve and a plurality of second clamping pieces fixed on the first supporting arm; the first clamping pieces are axially distributed along the hollow sleeve, and the second clamping pieces are axially distributed along the first supporting arm.
By adopting the technical scheme, one end of the supporting rod is clamped and fixed on the first clamping and fixing piece, the other end of the supporting rod is clamped and fixed on the second clamping and fixing piece, the supporting of the supporting arm structure is realized, and the angle of the supporting arm structure is adjusted according to the different positions of the first clamping and fixing piece and the second clamping and fixing piece which are clamped and fixed on the supporting rod.
The present application may be further configured in a preferred example to: an elastic part used for tightening the first supporting arm is arranged between the first supporting arm and the hollow sleeve.
Through adopting above-mentioned technical scheme, after the degree of depth and the internal diameter measurement of subsidence department, take off the bracing piece, the pulling force that the elastic component produced draws back first bracing arm to being close to cavity sleeve pipe one side for first bracing arm rotates, and then packs up first bracing arm.
The present application may be further configured in a preferred example to: the hollow sleeve pipe top fixedly connected with mount, be provided with the display screen that shows laser range finder measured data on the mount.
Through adopting above-mentioned technical scheme, the mount provides the mounting point for the display screen, and the display screen is used for showing the numerical value on laser range finder and the scale band, and then calculates the volume of subsidence department.
The present application may be further configured in a preferred example to: the driving mechanism comprises a driving motor, a driving shaft and a driving gear, the driving motor, the driving shaft and the driving gear are fixed on the side wall of the fixing frame, the driving shaft is coaxially fixed on a motor shaft of the driving motor, and the driving gear is fixed on the driving shaft.
Through adopting above-mentioned technical scheme, driving motor drives the driving shaft and rotates, and the rotation of driving shaft drives the driving gear and rotates.
The present application may be further configured in a preferred example to: the transmission structure comprises a driven shaft rotatably connected to the fixing frame, a driven gear connected to the driven shaft in a sliding mode and a fixing bolt, and the fixing bolt penetrates through the driven gear to abut against the driven shaft.
Through adopting above-mentioned technical scheme, the rotation of driving gear drives driven gear and rotates, and driven gear's rotation drives the driven shaft and rotates, and the rotation of driven shaft drives depth measurement structure and the work of diameter measurement structure.
The present application may be further configured in a preferred example to: and a level gauge for detecting the vertical placement of the hollow sleeve is arranged on the hollow sleeve.
Through adopting above-mentioned technical scheme, the spirit level is used for measuring the horizontal condition of cavity sleeve pipe, according to the demonstration of spirit level, adjusts support arm structure for cavity sleeve pipe is in vertical state.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the structure of the support arm structure and support structure of the present application;
fig. 3 is an exploded schematic view of the present application.
Reference numerals: 1. the earth surface; 11. a subsidence; 2. a support arm structure; 21. a first support arm; 22. a second support arm; 23. a third support arm; 24. a fourth support arm; 3. a hollow sleeve; 31. a level gauge; 4. a drive mechanism; 41. a drive motor; 42. a drive shaft; 43. a driving gear; 5. a sounding structure; 51. rotating the ring; 52. a scale band; 53. a plummet apparatus; 6. a support structure; 61. a support bar; 62. a first fastener; 63. a second fastener; 7. an elastic member; 8. a diameter measuring structure; 81. a turntable; 82. a hauling rope; 83. a laser range finder; 9. a fixed mount; 91. a display screen; 10. a transmission structure; 101. a driven shaft; 1011. a chute; 102. a driven gear; 103. fixing the bolt; 12. and (5) fixing the rod.
Detailed Description
The present application is described in further detail below with reference to the attached drawing figures.
With reference to fig. 1 and 2, a ground subsidence measuring device disclosed in the present application includes a hollow sleeve 3 disposed at a subsidence 11, the cross section of the hollow sleeve 3 is circular, a level gauge 31 for detecting the vertical position of the hollow sleeve 3 is mounted on the hollow sleeve 3, the level gauge 31 is a hollow cylinder, and liquid is contained in the cylinder, a plurality of supporting arm structures 2 for supporting the hollow sleeve 3 at the subsidence 11 are rotatably connected to the hollow sleeve 3, the supporting arm structures 2 are distributed on the outer wall of the hollow sleeve 3 in an array manner, the supporting arm structures 2 are supported on the surface of the ground 1, a supporting structure 6 for fixing the supporting arm structure 2 is clamped between the hollow sleeve 3 and the supporting arm structure 2, the top end of the hollow sleeve 3 is welded with a fixing frame 9, the fixing frame 9 is a rectangular frame, the top end of the fixing frame 9 is fixedly connected with a display screen 91 for displaying data through bolts, install actuating mechanism 4 on the mount 9, install the depth measurement structure 5 of measuring the 11 degree of depth of subsidence department and the structure 8 that measures the footpath of 11 internal diameters of subsidence department on the mount 9, equal fixedly connected with drive structure 10 on depth measurement structure 5 and the structure 8 that measures the footpath, two drive structure 10 are located actuating mechanism 4 both sides respectively, and actuating mechanism 4 drives depth measurement structure 5 and the structure 8 that measures the footpath through drive structure 10.
With reference to fig. 1 and 2, the support arm structure 2 includes a first support arm 21 rotatably connected to the hollow sleeve 3, a second support arm 22, a third support arm 23 and a fourth support arm 24, the fourth support arm 24 is telescopically connected to the third support arm 23, the third support arm 23 is telescopically connected to the second support arm 22, the second support arm 22 is telescopically connected to the first support arm 21, the cross sections of the first support arm 21, the second support arm 22, the third support arm 23 and the fourth support arm 24 are rectangular, and the area of the cross section is gradually reduced.
With reference to fig. 1 and 2, the first support arm 21 and the second support arm 22 are fixed by bolts, the bolts pass through the first support arm 21 and abut against the outer wall of the second support arm 22, the second support arm 22 and the third support arm 23 are fixed by bolts, the bolts pass through the second support arm 22 and abut against the outer wall of the third support arm 23, the third support arm 23 and the fourth support arm 24 are fixed by bolts, and the bolts pass through the third support arm 23 and abut against the outer wall of the fourth support arm 24; in the actual measurement process, the surface of the ground surface 1 is not horizontal, and the length of each supporting arm structure 2 required to be extended is determined according to the concave-convex condition of the surface of the ground surface 1 so as to realize that the hollow casing 3 is in a vertical state.
Referring to fig. 2, the supporting structure 6 includes a supporting rod 61, a plurality of first fastening members 62 fixed on the outer wall of the hollow sleeve 3 by welding and a plurality of second fastening members 63 fixed on the first supporting arm 21 by welding, fixing grooves are welded at both ends of the supporting rod 61, the cross-sectional shapes of the fixing grooves are U-shaped, the fixing grooves at both ends of the supporting rod 61 are respectively connected to the first fastening members 62 and the second fastening members 63 in a clamping manner, the plurality of first fastening members 62 are distributed at equal intervals along the axial direction of the hollow sleeve 3, the first fastening members 62 are cylinders welded on the hollow sleeve 3 by the fixing blocks, the plurality of second fastening members 63 are distributed at equal intervals along the axial direction of the first supporting arm 21, and the second fastening members 63 are cylinders.
With reference to fig. 1 and 2, in an actual measurement process, an included angle between the support arm structure 2 and the hollow sleeve 3 is adjusted according to different collapse diameters of the subsidence 11, so as to ensure that the diameter covered by the support arm structure 2 is larger than the diameter of the subsidence 11, and when one end of the support rod 61 is clamped on the first clamping piece 62 at the highest height and the other end of the support rod 61 is clamped on a second clamping piece 63 closest to one end of the hollow sleeve 3, the area covered by the support arm structure 2 is the largest; when one end of the supporting rod 61 is clamped on the first clamping piece 62 at the lowest height and the other end of the supporting rod 61 is clamped on the second clamping piece 63 farthest from one end of the hollow sleeve 3, the area covered by the supporting arm structure 2 is the smallest.
Referring to fig. 2, an elastic member 7 for tightening the first support arm 21 is disposed between the first support arm 21 and the hollow sleeve 3, the elastic member 7 is a spring, one end of the elastic member 7 is welded to the outer wall of the hollow sleeve 3, the other end of the elastic member 7 is welded to the first support arm 21, when the support arm structure 2 is required to be retracted, the support rod 61 is taken down from the first fastener 62 and the second fastener 63, and the elastic member 7 pulls the support arm structure 2 to rotate around the hollow sleeve 3, so that the support arm structure 2 is attached to the hollow sleeve 3.
Referring to fig. 1 and 3, the driving mechanism 4 includes a driving motor 41 fixed on the fixing frame 9 by bolts, a driving shaft 42, and a driving gear 43 interference-fitted on the driving shaft 42, the driving shaft 42 is coaxially fixed on a motor shaft of the driving motor 41, the driving shaft 42 is driven to rotate by the rotation of the driving motor 41, and the driving gear 43 is driven to rotate by the rotation of the driving shaft 42.
With reference to fig. 1 and 3, the transmission structure 10 includes a driven shaft 101 rotatably connected to the fixing frame 9 through a bearing, a driven gear 102 slidably connected to the driven shaft 101, and a fixing bolt 103, a sliding groove 1011 begins to be formed in the axial direction of the driven shaft 101, the fixing bolt 103 penetrates through the driven gear 102 to be abutted against and fixed in the sliding groove 1011, when the depth measuring structure 5 or the diameter measuring structure 8 is in an operating state, a fixing rod 12 is fixed to the depth measuring structure 5 or the diameter measuring structure 8 in a clamping manner, and the fixing rod 12 penetrates through the fixing frame 9 and the fixing frame. The depth measuring structure 5 or the diameter measuring structure 8 is fixed.
With reference to fig. 1 and 3, the depth measurement structure 5 includes a rotary ring 51 mounted on a driven shaft 101, a scale belt 52 surrounding the rotary ring 51, and a plumb bob 53 fixed at one end of the scale belt 52, a cross section of the rotary ring 51 is a circular ring, scale lines are marked on the scale belt 52, the plumb bob 53 keeps the scale belt 52 in a vertical state, when the driving gear 43 is engaged with the driven gear 102 on the depth measurement structure 5, the driving mechanism 4 drives the rotary ring 51 to rotate, the rotation of the rotary ring 51 drives the scale belt 52 to expand, whether the scale belt 52 is in a tensed state is observed, if the scale belt 52 is in a non-tensed state, it indicates that the plumb bob 53 has reached the lowest point of the subsidence 11, and at this time, a value on the scale belt 52 is read, that is the depth of the.
Referring to fig. 1 and 3, the diameter measuring structure 8 includes a rotary disc 81 mounted on another driven shaft 101, a pulling rope 82 surrounding the rotary disc 81, and a laser distance meter 83 fixed at one end of the pulling rope 82, when the driving gear 43 is meshed with the driven gear 102 on the diameter measuring structure 8, the driving mechanism 4 drives the rotary disc 81 to rotate, the rotation of the rotary disc 81 drives the pulling rope 82 to be tightened or unfolded, when the pulling rope 82 is unfolded, the height of the laser distance meter 83 is gradually reduced, when the pulling rope 82 is tightened, the height of the laser distance meter 83 is gradually increased, and during the ascending or descending process of the laser distance meter 83, the laser distance meter 83 measures the radius of the inner wall of the subsidence 11.
The implementation principle of the application is as follows: at first, according to the size in the 11 subsidence areas in subsidence of subsidence department, expand a plurality of support arm structure 2 on the hollow sleeve 3, bracing piece 61 struts support arm structure 2, according to the unsmooth condition of earth's surface 1, first support arm 21, second support arm 22, third support arm 23 and fourth support arm 24 stretch in proper order for the water column level in the spirit level 31 on the hollow sleeve 3, hollow sleeve 3 is in vertical state, and at this moment, as required, there are three kinds of selections: the first kind is that only start depth measurement structure 5, the second kind is that only start diameter measurement structure 8, the third kind is depth measurement structure 5 and diameter measurement structure 8 simultaneously, subsequently, start actuating mechanism 4, make scale band 52 and laser range finder 83 expanded, scale band 52 measures the 11 degree of depth of subsidence department, laser range finder 83 measures subsidence department 11 internal diameter, the average value is got to the data that laser range finder 83 measured, through the area formula, show the numerical value of calculating on display screen 91, the volume of subsidence department 11 also is the material volume that uses of required filling material promptly.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A surface subsidence measuring device which characterized in that: comprises a hollow sleeve (3) arranged at a subsidence (11), a plurality of supporting arm structures (2) which support the hollow sleeve (3) on the ground around the subsidence (11) are rotatably connected on the hollow sleeve (3), a supporting structure (6) for fixing the corner of the supporting arm structure (2) is arranged between the hollow sleeve (3) and the supporting arm structure (2), the top end of the hollow sleeve (3) is provided with a depth measuring structure (5) for measuring the depth of the subsidence (11) and a diameter measuring structure (8) for measuring the inner diameter of the subsidence (11), the top end of the hollow sleeve (3) is provided with a driving mechanism (4) for driving the depth measuring structure (5) and the diameter measuring structure (8) to move in the vertical direction, and the depth measuring structure (5) and the diameter measuring structure (8) are fixedly connected with transmission structures (10) for transmitting the power of the driving mechanism (4).
2. The ground subsidence measurement device of claim 1, wherein: the depth measuring structure (5) comprises a rotary ring (51) arranged on the driving mechanism (4), a scale band (52) surrounding the rotary ring (51) and a plumb instrument (53) fixed at one end of the scale band (52).
3. The ground subsidence measurement device of claim 1, wherein: the diameter measuring structure (8) comprises a rotary disc (81) arranged on the driving mechanism (4), a traction rope (82) surrounding the rotary disc (81) and a laser range finder (83) fixed at one end of the traction rope (82).
4. The ground subsidence measurement device of claim 1, wherein: the supporting arm structure (2) comprises a first supporting arm (21) rotatably connected with the hollow sleeve (3), a second supporting arm (22) telescopically connected in the first supporting arm (21), a third supporting arm (23) telescopically connected in the second supporting arm (22) and a fourth supporting arm (24) telescopically connected in the third supporting arm (23);
the first supporting arm (21), the second supporting arm (22), the third supporting arm (23) and the fourth supporting arm (24) are sequentially connected end to end.
5. The ground subsidence measurement device of claim 4, wherein: the supporting structure (6) comprises a supporting rod (61) for supporting the first supporting arm (21), a plurality of first clamping pieces (62) fixed on the outer wall of the hollow sleeve (3) and a plurality of second clamping pieces (63) fixed on the first supporting arm (21), one end of the supporting rod (61) is fixed with the first clamping pieces (62), and the other end of the supporting rod (61) is fixed with the second clamping pieces (63);
the plurality of first clamping pieces (62) are axially distributed along the hollow sleeve (3), and the plurality of second clamping pieces (63) are axially distributed along the first supporting arm (21).
6. The ground subsidence measurement device of claim 5, wherein: an elastic part (7) used for tightening the first supporting arm (21) is arranged between the first supporting arm (21) and the hollow sleeve (3).
7. The ground subsidence measurement device of claim 1, wherein: the hollow sleeve (3) top fixedly connected with mount (9), be provided with on mount (9) and show that the subsidence (11) radius data that are obtained by laser range finder (83) measurement display screen (91).
8. The ground subsidence measurement device of claim 1, wherein: the driving mechanism (4) comprises a driving motor (41), a driving shaft (42) and a driving gear (43) which are fixed on the side wall of the fixed frame (9), the driving shaft (42) is coaxially fixed on a motor shaft of the driving motor (41), and the driving gear (43) is fixed on the driving shaft (42).
9. The ground subsidence measurement device of claim 1, wherein: the transmission structure (10) comprises a driven shaft (101) rotatably connected to the fixed frame (9), a driven gear (102) connected to the driven shaft (101) in a sliding mode and a fixing bolt (103), and the fixing bolt (103) penetrates through the driven gear (102) to abut against the driven shaft (101).
10. The ground subsidence measurement device of claim 1, wherein: and the hollow sleeve (3) is provided with a level gauge (31) for detecting whether the hollow sleeve (3) is placed vertically or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731759.2A CN111879284A (en) | 2020-07-27 | 2020-07-27 | Ground subsidence measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731759.2A CN111879284A (en) | 2020-07-27 | 2020-07-27 | Ground subsidence measuring device |
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| Publication Number | Publication Date |
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| CN111879284A true CN111879284A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010731759.2A Pending CN111879284A (en) | 2020-07-27 | 2020-07-27 | Ground subsidence measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964066A (en) * | 2022-08-02 | 2022-08-30 | 深圳市海清视讯科技有限公司 | Measuring device and screening system |
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| CN206504693U (en) * | 2017-01-19 | 2017-09-19 | 中咨华科交通建设技术有限公司 | A kind of highway depression measurement apparatus |
| CN208803346U (en) * | 2018-09-12 | 2019-04-30 | 中建三局集团有限公司 | A kind of highway depression measuring device |
| CN209326645U (en) * | 2018-12-05 | 2019-08-30 | 河南省交科公路勘察设计有限公司 | A kind of Road Design multifunction measuring set |
| CN210220999U (en) * | 2019-09-30 | 2020-03-31 | 山西金恒爆破工程有限责任公司 | Depth measuring device for blast hole |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070022617A1 (en) * | 2005-02-09 | 2007-02-01 | John Wilkinson | Invert measuring device |
| CN206504693U (en) * | 2017-01-19 | 2017-09-19 | 中咨华科交通建设技术有限公司 | A kind of highway depression measurement apparatus |
| CN208803346U (en) * | 2018-09-12 | 2019-04-30 | 中建三局集团有限公司 | A kind of highway depression measuring device |
| CN209326645U (en) * | 2018-12-05 | 2019-08-30 | 河南省交科公路勘察设计有限公司 | A kind of Road Design multifunction measuring set |
| CN210220999U (en) * | 2019-09-30 | 2020-03-31 | 山西金恒爆破工程有限责任公司 | Depth measuring device for blast hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964066A (en) * | 2022-08-02 | 2022-08-30 | 深圳市海清视讯科技有限公司 | Measuring device and screening system |
| CN114964066B (en) * | 2022-08-02 | 2022-11-25 | 深圳市海清视讯科技有限公司 | Measuring device and screening system |
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| CB02 | Change of applicant information |
Address after: No. 930, Lingshi Road, Jing'an District, Shanghai 200040 Applicant after: Shanghai Geological and Mineral Engineering Survey (Group) Co.,Ltd. Address before: No. 930, Lingshi Road, Jing'an District, Shanghai 200040 Applicant before: SHANGHAI GEOLOGICAL & MINERAL ENGINEERING INVESTIGATION Co.,Ltd. |
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Application publication date: 20201103 |
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