CN108680072B - Bridge road surface is with multi-functional folding chi - Google Patents
Bridge road surface is with multi-functional folding chi Download PDFInfo
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- CN108680072B CN108680072B CN201810804343.1A CN201810804343A CN108680072B CN 108680072 B CN108680072 B CN 108680072B CN 201810804343 A CN201810804343 A CN 201810804343A CN 108680072 B CN108680072 B CN 108680072B
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- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
- G01B3/06—Rulers with scales or marks for direct reading rigid folding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
- G01B3/563—Protractors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a multifunctional folding ruler for bridge pavement, which comprises a multi-element angle scale, wherein a liquid level ruler is internally arranged above the multi-element angle scale, a pavement support fixing lead seat is internally connected to the lower part of the multi-element angle scale, a second adjusting through hole is externally arranged below the multi-element angle scale, a second scale main body is externally connected to the second adjusting through hole, a second bridge measuring strip is embedded above the second scale main body, a second supporting block is externally connected to the right side of the second scale main body, a supporting block connecting hole is internally arranged below the second supporting block, a fixing connecting rod is internally arranged inside the supporting block connecting hole, and a first bridge measuring strip is embedded above the first scale main body. This multi-functional folding chi is used on bridge road surface can support this folding chi with the mode of three-point support, can not appear the uneven condition of supporting point distribution, and conveniently dismantle the scale with the change loss to can accomodate folding chi more firm, improve angle measurement's precision.
Description
Technical Field
The invention relates to the technical field of bridge construction tools, in particular to a multifunctional folding ruler for bridge pavement.
Background
The bridge is a structure which is generally erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like, in the construction process of the bridge, the used parts or road surfaces are often required to be measured, the precision of construction and the quality of the bridge road surfaces are conveniently improved, and a common measuring tool comprises a multifunctional folding ruler.
The current common multi-functional folding ruler in market is both but angle measurement, but the rotatory folding ruler of linear distance again, and this kind of multi-functional folding ruler exists to expand when placing on the bridge floor, and folding ruler only has one end contact ground, and the supporting point distributes unevenly, and rotatory folding position is the punching press and forms, inconvenient dismantles the unilateral dipperstick in order to change the loss to folding ruler is after long-term the use, if for folding state, is easy to receive the exogenic action and not hard up to scatter, influences the condition of accomodating.
Disclosure of Invention
The invention aims to provide a multifunctional folding ruler for bridge pavement, which solves the problems that the supporting points of the conventional multifunctional folding ruler on the market are unevenly distributed, the multifunctional folding ruler is inconvenient to detach and replace, and the multifunctional folding ruler is easy to loosen after being folded after long-time use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a bridge road surface is with multi-functional folding chi, includes many angle scales, many angle scales top internally mounted have liquid level bar, and many angle scales below internally connected have road surface to support fixed lead seat, many angle scales below externally mounted has the second to adjust the through-hole, and the second adjusts through-hole externally connected has the second scale main part, second scale main part top is embedded to have the second bridge measurement strip, and second scale main part right side externally connected has the second supporting shoe, the supporting shoe connecting hole has been seted up to second supporting shoe below inside, and supporting shoe connecting hole internally mounted has fixed connection pole, second scale main part left side below is connected with first scale main part, and first scale main part below externally mounted has road surface to support fixed lead seat, first scale main part right side internally mounted has first regulation through-hole, and first regulation through-hole internally connected has many angle scales, first scale main part left side below is installed first supporting shoe, and first scale main part left end inside has seted up fixed connection circular slot, first scale top is embedded to have first measurement strip.
Preferably, the first bridge measuring strip transverse bisector is perpendicular to the axis of the first adjusting through hole, the second bridge measuring strip transverse bisector is perpendicular to the axis of the second adjusting through hole, and the axes of the first adjusting through hole and the second adjusting through hole are coincident with the axis of the multi-element angle scale.
Preferably, the multiple angle disc and the road surface support fixed lead seat are of a T-shaped cylindrical structure, the inside of the small diameter end of the multiple angle disc is of an internal thread blind hole structure, the small diameter end of the road surface support fixed lead seat is of an external thread structure, and the multiple angle disc and the road surface support fixed lead seat are of a fixed structure through the thread structure.
Preferably, the liquid level is in a cross structure, the axis of the liquid level is coincident with the axis of the multi-element angle scale, and the top plane of the liquid level is coincident with the top plane of the multi-element angle scale.
Preferably, the heights of the bottom surfaces of the first supporting block, the road surface supporting and fixing lead seat and the second supporting block are equal, the second supporting block is of an L-shaped structure, and the width between the left end face of the lower side of the second supporting block and the left end face of the upper side of the second supporting block is not smaller than the width of the fixed connection round groove.
Preferably, the fixed connecting rod is of an H-shaped structure, the diameter of the middle part of the fixed connecting rod is equal to the inner diameter of the connecting hole of the supporting block, the axes of the fixed connecting rod and the fixed connecting circular groove are respectively parallel to the transverse bisector of the first bridge measuring strip and the second bridge measuring strip, the height of the axis of the fixed connecting rod is equal to the height of the axis of the fixed connecting circular groove, and the diameter of the fixed connecting circular groove is equal to the outer diameter of the left side of the fixed connecting rod.
Preferably, the diameters of the first adjusting through hole and the second adjusting through hole are equal to the outer diameter of the small-diameter end of the multi-element angle scale, and the sum of the heights of the first adjusting through hole and the second adjusting through hole is equal to the height of the small-diameter end of the multi-element angle scale and the small-diameter end of the road surface supporting and fixing lead seat.
Compared with the prior art, the invention has the beneficial effects that: this multi-functional folding chi is used on bridge road surface can support this folding chi with the mode of three-point support, can not appear the uneven condition of supporting point distribution, and conveniently dismantle the scale with the change loss to can accomodate folding chi more firm, improve angle measurement's precision. The folding ruler is provided with the first bridge measuring strip and the second bridge measuring strip, and the transverse bisectors of the first bridge measuring strip and the second bridge measuring strip are perpendicular to the axes of the first adjusting through hole and the second adjusting through hole respectively, and the method for measuring angles by using the end faces of the ruler parallel to the axes of the multi-element angle scales as reference lines is more accurate for the common folding ruler by using the end faces of the ruler parallel to the axes of the multi-element angle scales.
Drawings
FIG. 1 is a schematic top view of a multifunctional folding ruler for bridge pavement;
FIG. 2 is a schematic view of the sectional structure A-A in FIG. 1 of the multifunctional folding ruler for bridge pavement of the present invention;
FIG. 3 is a schematic top view of a first scale body of the multifunctional folding ruler for bridge pavement;
FIG. 4 is a schematic top view of a second scale body of the multifunctional folding ruler for bridge pavement;
fig. 5 is a schematic diagram showing the folding state structure of the multifunctional folding ruler for bridge pavement.
In the figure: 1. the measuring device comprises a first scale main body, a first bridge measuring strip, a plurality of angle scales, a liquid level bar, a second scale main body, a second bridge measuring strip, a fixed connection circular groove, a first supporting block, a fixed connection rod, a second supporting block, a supporting block connecting hole, a second supporting block connecting hole, a second adjusting through hole, a first adjusting through hole, a road surface supporting and fixing lead seat and a second supporting block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a bridge road surface is with multi-functional folding chi, including many angle scales 3, many angle scales 3 top internally mounted have liquid level bar 4, and many angle scales 3 below internally connected have road surface support fixed lead seat 14, many angle scales 3 and road surface support fixed lead seat 14 are the cylindric structure of "T" shape, and many angle scales 3 minor diameter end inside is the internal thread blind hole structure, road surface support fixed lead seat 14 minor diameter end is the external screw thread structure, and many angle scales 3 pass through the screw thread structure and are fixed structure with road surface support fixed lead seat 14, this structure makes many angle scales 3 and road surface support fixed lead seat 14 can be in the same place through the screw thread structure and form "worker" font structure, conveniently fix first scale main part 1 and second scale main part 5 at the middle part of the "worker" font structure that many angle scales 3 and road surface support fixed lead seat 14 formed, the multi-element angle scale 3 and the road surface supporting and fixing lead seat 14 can be conveniently detached so as to replace the worn first scale main body 1 or second scale main body 5, reduce resource waste, the liquid level scale 4 is of a cross-shaped structure, the axis of the liquid level scale 4 is coincided with the axis of the multi-element angle scale 3, the top plane of the liquid level scale 4 is coincided with the top plane of the multi-element angle scale 3, the structure ensures that the cross-shaped liquid level scale 4 can be positioned in the middle part of the multi-element angle scale 3 to conveniently measure whether the multi-element angle scale 3 is placed or not, can play a role in measuring whether the levelness of the bridge road surface is qualified or not, the liquid level scale 4 does not protrude out of the surface of the multi-element angle scale 3, the liquid level scale 4 does not prevent the accumulation and storage of a plurality of folding scales, and a user can also use the multi-element angle scale 3 as a platform when using the folding scale, a second adjusting through hole 12 is arranged outside the lower part of the multi-element angle scale 3, a second scale main body 5 is connected outside the second adjusting through hole 12, a second bridge measuring strip 6 is embedded above the second scale main body 5, a second supporting block 10 is connected outside the right side of the second scale main body 5, a supporting block connecting hole 11 is arranged inside the lower part of the second supporting block 10, a fixed connecting rod 9 is arranged inside the supporting block connecting hole 11, the fixed connecting rod 9 is of an H-shaped structure, the diameter of the middle part of the fixed connecting rod 9 is equal to the inner diameter of the supporting block connecting hole 11, the axes of the fixed connecting rod 9 and the fixed connecting circular groove 7 are respectively equal to the horizontal bisector flat line of the first bridge measuring strip 2 and the second bridge measuring strip 6, the height of the axis of the fixed connecting rod 9 is equal to the height of the axis of the fixed connecting circular groove 7, the diameter of the fixed connecting circular groove 7 is equal to the outer diameter of the left side of the fixed connecting rod 9, the structure ensures that the middle part of the fixed connecting rod 9 can slide along the connecting hole 11 of the supporting block, the axes of the fixed connecting rod 9 and the fixed connecting circular groove 7 are positioned on the same axis when the folding ruler is in a folded state, the left side of the fixed connecting rod 9 can be directly inserted into the inside of the fixed connecting circular groove 7, the auxiliary fixing effect on the first ruler main body 1 and the second ruler main body 5 is realized, the situation that the folding ruler is easy to scatter when folded after long-time use is prevented, the left side lower part of the second ruler main body 5 is connected with the first ruler main body 1, the pavement supporting and fixing lead seat 14 is externally arranged below the first ruler main body 1, the first adjusting through hole 13 is arranged inside the right side of the first ruler main body 1, the first adjusting through hole 13 is internally connected with the multi-element angle dial 3, the diameters of the first adjusting through hole 13 and the second adjusting through hole 12 are equal to the outer diameter of the small diameter end of the multi-element angle dial 3, the sum of the heights of the first adjusting through hole 13 and the second adjusting through hole 12 is equal to the heights of the small diameter ends of the multi-element angle disc 3 and the road surface support fixed lead seat 14, the structure ensures that the first adjusting through hole 13 and the second adjusting through hole 12 can rotate along the small diameter ends of the multi-element angle disc 3 to fold and unfold, the first adjusting through hole 13 and the second adjusting through hole 12 can not generate gaps between the small diameter ends of the multi-element angle disc 3 and the road surface support fixed lead seat 14 after being clamped outside the small diameter ends of the multi-element angle disc 3 and the road surface support fixed lead seat 14, so that the first supporting block 8 is arranged below the left side of the first scale main body 1, the inside of the left end of the first scale main body 1 is provided with a fixed connection round groove 7, the bottom surface heights of the first supporting block 8, the road surface support fixed lead seat 14 and the second supporting block 10 are equal, the second supporting block 10 is L-shaped, the width between the left end surface of the lower side of the second supporting block 10 and the left end surface of the upper side of the second supporting block 10 is not smaller than the width of the fixed connection circular groove 7, the structure enables the folding ruler to support the folding ruler in a uniformly distributed three-point supporting mode, the condition of uneven supporting points is avoided, the fixed connecting rod 9 can be conveniently pulled out from the fixed connection circular groove 7 through the width between the left end surface of the lower side of the second supporting block 10 and the left end surface of the upper side of the second supporting block 10, the second supporting block 10 can not prevent the rotation and folding of the first ruler body 1, the first bridge measuring strip 2 is embedded above the first ruler body 1, the transverse bisector of the first bridge measuring strip 2 is mutually perpendicular to the axis of the first adjusting through hole 13, the transverse bisector of the second bridge measuring strip 6 is mutually perpendicular to the axis of the second adjusting through hole 12, and the axes of the first adjusting through hole 13 and the second adjusting through hole 12 coincide with the axis of the multi-element angle scale 3, and the structure ensures that the transverse bisectors of the first bridge measuring strip 2 and the second bridge measuring strip 6 coincide with the axis of the multi-element angle scale 3 through the axes of the first adjusting through hole 13 and the second adjusting through hole 12, and the angle marking lines on the conventional multi-element angle scale 3 are perpendicular to the axis of the multi-element angle scale 3, so that the transverse bisectors of the first bridge measuring strip 2 and the second bridge measuring strip 6 coincide with the angle marking lines on the multi-element angle scale 3, and compared with the measuring results using the front end face and the rear end face of the scale which are parallel to the angle marking lines on the multi-element angle scale 3 as the reference in the conventional method, the measuring results are more accurate and visual.
The working principle of the embodiment is as follows: when the multifunctional folding ruler for bridge pavement is used, a user can hold one hand above the multi-element angle scale 3 of the folding ruler in a folded state, then put one hand on the right side of the fixed connecting rod 9, move the fixed connecting rod 9 rightward along the supporting block connecting hole 11 until the left side of the fixed connecting rod 9 is completely extracted outside the fixed connecting round groove 7, at the moment, the first ruler main body 1 and the second ruler main body 5 are not mutually fixed, then rotate the first ruler main body 1 and the second ruler main body 5 along the outer part of the lower end of the multi-element angle scale 3 through the first adjusting through hole 13 and the second adjusting through hole 12, when the linear distance measurement of the bridge pavement is needed, the first ruler main body 1 and the second ruler main body 5 can be rotated to be positioned on the same straight line for measurement, when in measurement, the first support block 8, the road surface support fixed lead seat 14 and the second support block 10 can be placed on a measurement plane to support, so that the first scale main body 1 and the second scale main body 5 are in a stable state, at the moment, linear measurement can be carried out, the horizontal condition of the bridge road surface can be observed through the liquid level ruler 4 at the same time, when the angle on the bridge road surface is required to be measured, the first scale main body 1 and the second scale main body 5 can be rotated to the mode that the first bridge measuring strip 2 and the second bridge measuring strip 6 coincide with the angle marking line corresponding to the surface of the multi-element angle scale 3 to measure the angle, the measurement accuracy is improved, after the first scale main body 1 or the second scale main body 5 is worn or damaged, a user can detach the multi-element angle scale 3 from the road surface support fixed lead seat 14 through a thread structure, then remove the first scale main part 1 of damage or second scale main part 5 from many first angular scales 3 in order to change, reduce the extravagant of resource, when this folding ruler was idle, can rotate first scale main part 1 to second scale main part 5 below, make first bridge measuring strip 2 and second bridge measuring strip 6 can be in inside the same vertical plane, then move fixed connecting rod 9 left along supporting shoe connecting hole 11, until fixed connecting rod 9 left side inserts completely in fixed connection circular slot 7 can, fixed connecting rod 9 plays the effect of reinforcing connection first scale main part 1 and second scale main part 5 this moment, make first scale main part 1 and second scale main part 5 can not scatter easily, thereby accomplish a series of works.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. The utility model provides a bridge road surface is with multi-functional folding chi, includes multiple angle scale (3), its characterized in that: the utility model discloses a multi-element angle scale (3) top internally mounted has liquid level bar (4), and multi-element angle scale (3) below internally connected has road surface support fixed lead seat (14), multi-element angle scale (3) below externally mounted has second regulation through-hole (12), and second regulation through-hole (12) externally connected has second scale main part (5), second scale main part (5) top is embedded has second bridge measuring strip (6), and second scale main part (5) right side external connection has second supporting shoe (10), supporting shoe connecting hole (11) have been seted up to second supporting shoe (10) below inside, and supporting shoe connecting hole (11) internally mounted has fixed connecting rod (9), second scale main part (5) left side below is connected with first scale main part (1), and first scale main part (1) below externally mounted has road surface support fixed lead seat (14), first scale main part (1) right side internally mounted has first regulation through-hole (13), and first regulation through-hole (13) internally connected with second scale main part (5) right side, first scale main part (3) right side internally connected with left side circular connecting groove (8) are seted up first scale main part (7), a first bridge measuring strip (2) is embedded above the first scale main body (1);
the transverse bisector of the first bridge measuring strip (2) is perpendicular to the axis of the first adjusting through hole (13), the transverse bisector of the second bridge measuring strip (6) is perpendicular to the axis of the second adjusting through hole (12), and the axes of the first adjusting through hole (13) and the second adjusting through hole (12) are coincident with the axis of the multi-element angle scale (3);
the diameters of the first adjusting through hole (13) and the second adjusting through hole (12) are equal to the outer diameter of the small diameter end of the multi-element angle scale (3), and the sum of the heights of the first adjusting through hole (13) and the second adjusting through hole (12) is equal to the height of the small diameter end of the multi-element angle scale (3) and the small diameter end of the road surface supporting and fixing lead seat (14).
2. The multifunctional folding ruler for bridge pavement according to claim 1, wherein: the multi-element angle scale (3) and the road surface support fixed lead seat (14) are of T-shaped cylindrical structures, the inside of the small-diameter end of the multi-element angle scale (3) is of an internal thread blind hole structure, the small-diameter end of the road surface support fixed lead seat (14) is of an external thread structure, and the multi-element angle scale (3) and the road surface support fixed lead seat (14) are of fixed structures through the thread structures.
3. The multifunctional folding ruler for bridge pavement according to claim 1, wherein: the liquid level bar (4) is of a cross-shaped structure, the axis of the liquid level bar (4) is coincided with the axis of the multi-element angle scale (3), and the top plane of the liquid level bar (4) is coincided with the top plane of the multi-element angle scale (3).
4. The multifunctional folding ruler for bridge pavement according to claim 1, wherein: the heights of the bottom surfaces of the first supporting block (8), the road surface supporting and fixing lead seat (14) and the second supporting block (10) are equal, the second supporting block (10) is of an L-shaped structure, and the width between the left end surface of the lower side of the second supporting block (10) and the left end surface of the upper side of the second supporting block (10) is not smaller than the width of the fixed connection circular groove (7).
5. The multifunctional folding ruler for bridge pavement according to claim 1, wherein: the fixed connecting rod (9) is of an H-shaped structure, the diameter of the middle of the fixed connecting rod (9) is equal to the inner diameter of a connecting hole (11) of the supporting block, the axes of the fixed connecting rod (9) and the fixed connecting circular groove (7) are respectively parallel to the transverse bisector of the first bridge measuring strip (2) and the second bridge measuring strip (6), the height of the axis of the fixed connecting rod (9) is equal to the height of the axis of the fixed connecting circular groove (7), and the diameter of the fixed connecting circular groove (7) is equal to the outer diameter of the left side of the fixed connecting rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804343.1A CN108680072B (en) | 2018-07-20 | 2018-07-20 | Bridge road surface is with multi-functional folding chi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804343.1A CN108680072B (en) | 2018-07-20 | 2018-07-20 | Bridge road surface is with multi-functional folding chi |
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| Publication Number | Publication Date |
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| CN108680072A CN108680072A (en) | 2018-10-19 |
| CN108680072B true CN108680072B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810804343.1A Active CN108680072B (en) | 2018-07-20 | 2018-07-20 | Bridge road surface is with multi-functional folding chi |
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| CN (1) | CN108680072B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645872A (en) * | 2019-08-19 | 2020-01-03 | 河南工业和信息化职业学院 | Portable measuring device for mining engineering |
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| CN206269698U (en) * | 2016-12-14 | 2017-06-20 | 重庆凯洲实业集团有限公司 | A kind of engineering survey chi |
| CN206656765U (en) * | 2017-04-28 | 2017-11-21 | 金志刚 | A kind of combination type multifunction water leveling ruler |
| CN207365867U (en) * | 2017-11-14 | 2018-05-15 | 张丰羽 | A kind of civil engineering measuring scale |
| CN207423174U (en) * | 2017-11-02 | 2018-05-29 | 孟新 | Protractor horizon rule |
| CN208458590U (en) * | 2018-07-20 | 2019-02-01 | 广东鸿翔工程检测咨询有限公司 | A kind of bridge pavement foldable multifunctional ruler |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138785Y (en) * | 1992-09-01 | 1993-07-21 | 姜宝玉 | Multifunctional straight folding ruler |
| CN2933900Y (en) * | 2006-08-02 | 2007-08-15 | 丁楠 | Multifunctional folding ruler |
| CN201086553Y (en) * | 2007-05-11 | 2008-07-16 | 田谊德 | Multi-functional ruler for drafting |
| CN201242431Y (en) * | 2008-06-23 | 2009-05-20 | 胡健文 | Horizontal angle rule |
| WO2011069628A1 (en) * | 2009-12-08 | 2011-06-16 | Holger Schuster | Folding rule comprising angle measuring device |
| CN202734692U (en) * | 2012-09-03 | 2013-02-13 | 张哲滔 | Portable measuring ruler |
| CN203110678U (en) * | 2013-03-01 | 2013-08-07 | 钟火军 | Multifunctional foldable ruler |
| CN204461264U (en) * | 2015-01-08 | 2015-07-08 | 谢瑾 | Special portable folding chi is surveyed and drawn in a kind of construction work |
| CN205537407U (en) * | 2016-04-08 | 2016-08-31 | 中冶建工集团有限公司 | A multifunctional measuring chi for in construction |
| CN206269698U (en) * | 2016-12-14 | 2017-06-20 | 重庆凯洲实业集团有限公司 | A kind of engineering survey chi |
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| CN208458590U (en) * | 2018-07-20 | 2019-02-01 | 广东鸿翔工程检测咨询有限公司 | A kind of bridge pavement foldable multifunctional ruler |
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| Publication number | Publication date |
|---|---|
| CN108680072A (en) | 2018-10-19 |
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