CN108680072A - A kind of bridge pavement foldable multifunctional ruler - Google Patents
A kind of bridge pavement foldable multifunctional ruler Download PDFInfo
- Publication number
- CN108680072A CN108680072A CN201810804343.1A CN201810804343A CN108680072A CN 108680072 A CN108680072 A CN 108680072A CN 201810804343 A CN201810804343 A CN 201810804343A CN 108680072 A CN108680072 A CN 108680072A
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- China
- Prior art keywords
- polynary
- scale
- hole
- main body
- supporting block
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 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
Abstract
The present invention relates to a kind of bridge pavement foldable multifunctional rulers, including polynary angle scale, the polynary angle scale upper interior is equipped with liquid water leveling ruler, and polynary angle scale lower inner is connected with the fixed lead seat of road surface support, the polynary angle scale lower outer is equipped with the second adjusting through-hole, and second adjusting through-hole be externally connected to the second scale main body, it is embedded with the second bridge survey item above the second scale main body, and second scale main body right hand external be connected with the second supporting block, the second supporting block lower inner offers supporting block connecting hole, and fixed connecting rod is installed inside supporting block connecting hole, it is embedded with the first bridge survey item above the first scale main body.The bridge pavement can be supported this folding ruler in a manner of supported at three point with foldable multifunctional ruler, be not in the case where supporting point is unevenly distributed, and it is easy to disassemble to replace the scale of loss, and the more secured of folding ruler storage can be improved the precision of angle measurement.
Description
Technical field
The present invention relates to bridge construction appliance technology, specially a kind of bridge pavement foldable multifunctional ruler.
Background technology
Bridge refers generally to be erected in rivers,lakes and seas, the structures for making traffic etc. that can smoothly pass through, in applying for bridge
During work, it is often necessary to measure work, the precision and bridge that body is constructed convenient for raising to the part used or road surface
The quality on road surface, common survey tool include just foldable multifunctional ruler.
Common foldable multifunctional ruler is that not only can measure angle, but also can measure the rotary folding of air line distance currently on the market
Ruler, when such foldable multifunctional ruler is placed in the presence of expansion on bridge floor, folding ruler only has end thereof contacts ground, and supporting point is distributed not
, and rotary folding position is to be stamped and formed out, it has not been convenient to be dismantled to replace the unilateral measuring scale of loss, and folding ruler exists
After long-time service, if folded state, the case where being easy to be loosened and scattered by outer force effect, influence storage.
Invention content
The purpose of the present invention is to provide a kind of bridge pavement foldable multifunctional rulers, to solve to carry in above-mentioned background technology
The foldable multifunctional ruler supporting point common currently on the market gone out is unevenly distributed, it has not been convenient to be dismantled and be replaced, and for a long time
The problem of being easy to loosen when folding after use.
To achieve the above object, the present invention provides the following technical solutions:A kind of bridge pavement foldable multifunctional ruler, including
Polynary angle scale, the polynary angle scale upper interior is equipped with liquid water leveling ruler, and polynary angle scale lower inner is connected with
The fixed lead seat of road surface support, the polynary angle scale lower outer is equipped with the second adjusting through-hole, and second is adjusted outside through-hole
It is connected with the second scale main body, the second bridge survey item is embedded with above the second scale main body, and the second scale main body is right
Side is externally connected to the second supporting block, and the second supporting block lower inner offers supporting block connecting hole, and supporting block connects
Fixed connecting rod is installed, lower section is connected with the first scale main body, and the first scale on the left of the second scale main body inside hole
Main body lower outer is equipped with the fixed lead seat of road surface support, and it is logical that the first scale main body right side inside offers the first adjusting
Hole, and the first adjusting through-hole is internally connected with polynary angle scale, lower section is equipped with the first support on the left of the first scale main body
Block, and offered inside the first scale main body left end and be fixedly connected with circular groove, it is embedded with the first bridge above the first scale main body
Beam measures item.
Preferably, the transversally bisecting line of the first bridge survey item is mutually perpendicular to the first adjusting through-bore axis, the second bridge
Beam measures the transversally bisecting line of item and is mutually perpendicular to the second adjusting through-bore axis, and the axis of the first adjusting through-hole and the second adjusting through-hole
Line is overlapped with polynary angle disk axis.
Preferably, the polynary angle scale and the road surface fixed lead seat of support are "T"-shaped cylindrical-shaped structure, and polynary angle
It is blind screw hole structure inside disk smaller diameter end, support fixed lead seat smaller diameter end in road surface is external thread structure, and polynary
Angle scale is fixed structure by helicitic texture and the fixed lead seat of road surface support.
Preferably, the liquid water leveling ruler is " ten " character form structure, and liquid water leveling ruler axis and polynary angle disk axis
It overlaps, and liquid water leveling ruler top plan is overlapped with polynary angle scale top plan.
Preferably, the floor height of first supporting block, the fixed lead seat of road surface support and the second supporting block is equal, and
Second supporting block is " L " shape structure, and the width between the second supporting block downside left side and the second supporting block upside left side is not
Less than the width for being fixedly connected with circular groove.
Preferably, the fixed connecting rod is " H " shape structure, and fixed connecting rod mid diameter is equal to supporting block connecting hole
Internal diameter, fixed connecting rod and is fixedly connected with the axis of the circular groove transverse direction with the first bridge survey item and the second bridge survey item respectively
Bisector horizontal line, it is equal with the height for being fixedly connected with circular groove axis to be fixedly connected with rod axis, and be fixedly connected with circular groove diameter etc.
The outer diameter on the left of fixed connecting rod.
Preferably, the diameter of the first adjusting through-hole and the second adjusting through-hole is equal to outside polynary angle scale smaller diameter end
Diameter, and the sum of height of the first adjusting through-hole and the second adjusting through-hole fixes the small straight of lead seat with polynary angle scale and road surface support
Diameter end height is equal.
Compared with prior art, the beneficial effects of the invention are as follows:The bridge pavement foldable multifunctional ruler can be with 3 points
The mode of support is supported this folding ruler, is not in the case where supporting point is unevenly distributed, and easy to disassemble to replace damage
The scale of consumption, and the more secured of folding ruler storage can be improved the precision of angle measurement.This folding ruler is provided with
One bridge survey item and the second bridge survey item, and the transversally bisecting line of the first bridge survey item and the second bridge survey item is distinguished
Adjust through-hole and second with first and adjust that through-bore axis is vertical, because conventional polynary angle panel surface angle tag line can with it is more
The axis of first angle scale is vertical, and because the axis of the first adjusting through-hole and the second adjusting through-hole is vertical with polynary angle disk axis,
Therefore the first bridge survey item and the second bridge survey item can be overlapped with the angle tag line on polynary angle scale, then utilize first
Bridge survey item and the second bridge survey item carry out angle measurement and are utilized and polynary angle disk axis relative to common folding ruler
Parallel scale end face is more accurate as the method for datum line.
Description of the drawings
Fig. 1 is a kind of overlooking structure diagram of bridge pavement foldable multifunctional ruler of the present invention;
Fig. 2 is A-A schematic cross-sectional views in a kind of Fig. 1 of bridge pavement foldable multifunctional ruler of the present invention;
Fig. 3 is a kind of first scale main body overlooking structure diagram of bridge pavement foldable multifunctional ruler of the present invention;
Fig. 4 is a kind of second scale main body overlooking structure diagram of bridge pavement foldable multifunctional ruler of the present invention;
Fig. 5 is a kind of folded state structural schematic diagram of bridge pavement foldable multifunctional ruler of the present invention.
In figure:1, the first scale main body, the 2, first bridge survey item, 3, polynary angle scale, 4, liquid water leveling ruler, 5, second
Scale main body, the 6, second bridge survey item, 7, be fixedly connected with circular groove, the 8, first supporting block, 9, fixed connecting rod, 10, second
Bracer, 11, supporting block connecting hole, 12, second adjusts through-hole, and 13, first adjusts through-hole, and 14, the fixed lead seat of road surface support.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution:A kind of bridge pavement foldable multifunctional ruler, including it is more
First angle scale 3,3 upper interior of polynary angle scale is equipped with liquid water leveling ruler 4, and 3 lower inner of polynary angle scale is connected with road
The fixed lead seat 14 of face support, polynary angle scale 3 and the fixed lead seat of road surface support 14 are "T"-shaped cylindrical-shaped structure, and polynary angle
It is blind screw hole structure inside 3 smaller diameter end of scale, support fixed 14 smaller diameter end of lead seat in road surface is external thread structure, and
Polynary angle scale 3 is fixed structure by helicitic texture and the fixed lead seat 14 of road surface support, this structure makes 3 He of polynary angle scale
Road surface support fixes lead seat 14 and can be fixed together to form I-shaped structure by helicitic texture, facilitates the first scale master
Body 1 and the second scale main body 5 are fixed on the I-shaped structure of polynary angle scale 3 and fixed 14 formation of lead seat of road surface support
Middle part, and polynary angle scale 3 and road surface support fix lead seat 14 and can easily disassemble, in order to replace the first of abrasion
Scale main body 1 or the second scale main body 5, reduce the wasting of resources, and liquid water leveling ruler 4 is " ten " character form structure, and liquid water leveling ruler 4
Axis is overlapped with 3 axis of polynary angle scale, and 4 top plan of liquid water leveling ruler is overlapped with 3 top plan of polynary angle scale, this
Structure makes the liquid water leveling ruler 4 of " ten " font be at 3 middle part of polynary angle scale and be put to be convenient for measuring polynary angle scale 3
When it is whether horizontal, the whether qualified effect of levelness for measuring bridge pavement can be played, and liquid water leveling ruler 4 will not protrude from
3 surface of polynary angle scale enables liquid water leveling ruler 4 not interfere the base product storage of multiple folding rulers, and user is using
Polynary angle scale 3 can also be used as platform for placing when this folding ruler, 3 lower outer of polynary angle scale is equipped with the second adjusting
Through-hole 12, and the second adjusting through-hole 12 is externally connected to the second scale main body 5,5 top of the second scale main body is embedded with the second bridge
Beam measures item 6, and 5 right hand external of the second scale main body is connected with the second supporting block 10, and 10 lower inner of the second supporting block opens up
There is supporting block connecting hole 11, and fixed connecting rod 9 is installed inside supporting block connecting hole 11, fixed connecting rod 9 is " H " shape knot
Structure, and 9 mid diameter of fixed connecting rod is equal to 11 internal diameter of supporting block connecting hole, fixed connecting rod 9 and the axis for being fixedly connected with circular groove 7
The line transversally bisecting line horizontal line with the first bridge survey item 2 and the second bridge survey item 6 respectively, 9 axis of fixed connecting rod with it is solid
Surely the height of connection 7 axis of circular groove is equal, and is fixedly connected with 7 diameter of circular groove and is equal to 9 left side outer diameter of fixed connecting rod, this structure
Enable fixed connecting rod 9 middle part along supporting block connecting hole 11 slide, and fixed connecting rod 9 be fixedly connected with circular groove 7
Axis can be on same axis when this folding ruler is in folded state, enable the left side of fixed connecting rod 9 can be direct
Insertion is fixedly connected inside circular groove 7, plays the role of that the first scale main body 1 and the second scale main body 5 is auxiliarily fixed, and prevents this
The case where folding ruler is easy to scatter when folding after long-time use, the left side of the second scale main body 5 lower section are connected with the
One scale main body 1, and 1 lower outer of the first scale main body is equipped with the fixed lead seat 14 of road surface support, 1 right side of the first scale main body
Inside offers the first adjusting through-hole 13, and the first adjusting through-hole 13 is internally connected with polynary angle scale 3, and first adjusts through-hole 13
It is equal to 3 smaller diameter end outer diameter of polynary angle scale with the diameter of the second adjusting through-hole 12, and first adjusts the tune of through-hole 13 and second
Save the sum of height of through-hole 12 supports the smaller diameter end height of fixed lead seat 14 to be equal with polynary angle scale 3 and road surface, this knot
Structure enables the first adjusting through-hole 13 and second to adjust through-hole 12 along the rotation of 3 smaller diameter end of polynary angle scale to be folded
With expansion, and the first adjusting through-hole 13 and second adjusts through-hole 12 and is being stuck in polynary angle scale 3 and the fixed lead seat of road surface support 14
Smaller diameter end outside after not will produce sky between polynary angle scale 3 and the larger diameter end of the fixed lead seat of road surface support 14
Gap, therefore will not move up and down, 1 left side lower section of the first scale main body is equipped with the first supporting block 8, and 1 left end of the first scale main body
Inside, which offers, is fixedly connected with circular groove 7, and the bottom surface of the first supporting block 8, the fixed lead seat 14 of road surface support and the second supporting block 10 is high
Degree is equal, and the second supporting block 10 is " L " shape structure, and 10 downside left side of the second supporting block and 10 upside of the second supporting block are left
Width between end face is not less than the width for being fixedly connected with circular groove 7, this structure enables this folding ruler with equally distributed three
Point-supported mode is supported this folding ruler, avoids the occurrence of the situation of supporting point unevenness, and 10 downside of the second supporting block is left
Width between end face and 10 upside left side of the second supporting block enables fixed connecting rod 9 can be easily from being fixedly connected with circular groove 7
Interior extraction, and the second supporting block 10 is enabled not interfere the rotary folding of the first scale main body 1,1 top of the first scale main body embeds
There are the first bridge survey item 2,2 transversally bisecting line of the first bridge survey item to be mutually perpendicular to the first adjusting 13 axis of through-hole, second
6 transversally bisecting line of bridge survey item is mutually perpendicular to the second adjusting 12 axis of through-hole, and first adjusts the adjusting of through-hole 13 and second
The axis of through-hole 12 is overlapped with 3 axis of polynary angle scale, this structure makes the first bridge survey item 2 and the second bridge survey item 6
Transversally bisecting line is overlapped by the first adjusting 13 axis of through-hole and the second adjusting 12 axis of through-hole with 3 axis of polynary angle scale, because
Angle tag line on conventional polynary angle scale 3 is vertical with 3 axis of polynary angle scale, therefore the first bridge survey item 2 and second
6 transversally bisecting line of bridge survey item is overlapped with the angle tag line on polynary angle scale 3, relative to use in conventional method with it is more
The parallel scale front/rear end of angle tag line on first angle scale 3 as benchmark measurement result more precisely with intuitively.
The operation principle of the present embodiment:When in use with foldable multifunctional ruler, user can be first by one for the bridge pavement
It is hand steered to hold above the polynary angle scale 3 of this folding ruler of folded state, then a hand is placed on the right side of fixed connecting rod 9 and will be consolidated
Determine connecting rod 9 to move right along supporting block connecting hole 11, until the left side of fixed connecting rod 9 is fully drawn out in being fixedly connected with circle
Outside slot 7, the first scale main body 1 and the second scale main body 5 will not be fixed with each other at this time, then by the first scale main body
1 and second scale main body 5 by first adjust through-hole 13 and second and adjust through-hole 12 and carried out along outside 3 lower end of polynary angle scale
Rotation can rotate the first scale main body 1 and the second scale main body 5 when needing the air line distance for carrying out bridge pavement to measure
It measures on the same line, when measurement can be by the first supporting block 8, fixed 14 and second support of lead seat of road surface support
Block 10 is placed on to measure and is supported in plane, to enable the first scale main body 1 and the second scale main body 5 be in stable state,
Line measurement can be carried out at this time, can also be observed the Realize of bridge pavement herein simultaneously by liquid water leveling ruler 4, be worked as needs
When being measured to the angle on bridge pavement, the first scale main body 1 and the second scale main body 5 rotation to the first bridge can be surveyed
The mode that amount item 2 and the second bridge survey item 6 angle tag line corresponding with 3 surface of polynary angle scale overlap surveys angle
Amount, improves the precision of measurement, and after the first scale main body 1 or the second scale main body 5 are worn or damage, user can lead to
Helicitic texture is crossed to split polynary angle scale 3 and the fixed lead seat of road surface support 14, then by the first scale main body 1 of damage or
Second scale main body 5 is moved up divided by is replaced from polynary angle scale 3, reduces the waste of resource, can when this folding ruler is idle
By the first scale main body 1 rotation to the lower section of the second scale main body 5, enable the first bridge survey item 2 and the second bridge survey item 6 can be with
Inside same perpendicular, then fixed connecting rod 9 is moved to the left along supporting block connecting hole 11, until being fixedly connected
9 left side of bar, which is fully inserted into, to be fixedly connected in circular groove 7, and fixed connecting rod 9 plays reinforcing connection 1 He of the first scale main body at this time
The effect of second scale main body 5 enables the first scale main body 1 and the second scale main body 5 not to scatter easily, a series of to complete
Work.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (7)
1. a kind of bridge pavement foldable multifunctional ruler, including polynary angle scale(3), it is characterised in that:The polynary angle scale
(3)Upper interior is equipped with liquid water leveling ruler(4), and polynary angle scale(3)Lower inner is connected with the fixed lead seat of road surface support
(14), the polynary angle scale(3)Lower outer is equipped with the second adjusting through-hole(12), and second adjusts through-hole(12)Outside connects
It is connected to the second scale main body(5), the second scale main body(5)Top is embedded with the second bridge survey item(6), and the second scale
Main body(5)Right hand external is connected with the second supporting block(10), second supporting block(10)Lower inner offers supporting block company
Connect hole(11), and supporting block connecting hole(11)Inside is equipped with fixed connecting rod(9), the second scale main body(5)Under left side
Side is connected with the first scale main body(1), and the first scale main body(1)Lower outer is equipped with the fixed lead seat of road surface support(14),
The first scale main body(1)The first adjusting through-hole is offered inside right side(13), and first adjusts through-hole(13)Inside connection
There is polynary angle scale(3), the first scale main body(1)The first supporting block is installed below left side(8), and the first scale main body
(1)It is offered inside left end and is fixedly connected with circular groove(7), the first scale main body(1)Top is embedded with the first bridge survey item
(2).
2. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:First bridge is surveyed
Measure item(2)Transversally bisecting line and first adjusts through-hole(13)Axis is mutually perpendicular to, the second bridge survey item(6)Transversally bisecting line with
Second adjusts through-hole(12)Axis is mutually perpendicular to, and first adjusts through-hole(13)Through-hole is adjusted with second(12)Axis with it is polynary
Angle scale(3)Axis overlaps.
3. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:The polynary angle scale
(3)Fixed lead seat is supported with road surface(14)It is "T"-shaped cylindrical-shaped structure, and polynary angle scale(3)It is interior inside smaller diameter end
Tapped blind hole structure, the fixed lead seat of road surface support(14)Smaller diameter end is external thread structure, and polynary angle scale(3)Pass through spiral shell
Line structure and the fixed lead seat of road surface support(14)For fixed structure.
4. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:The liquid water leveling ruler
(4)For " ten " character form structure, and liquid water leveling ruler(4)Axis and polynary angle scale(3)Axis overlaps, and liquid water leveling ruler
(4)Top plan and polynary angle scale(3)Top plan overlaps.
5. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:First supporting block
(8), the fixed lead seat of road surface support(14)With the second supporting block(10)Floor height be equal, and the second supporting block(10)For
" L " shape structure, the second supporting block(10)Downside left side and the second supporting block(10)Width between the left side of upside is not less than
It is fixedly connected with circular groove(7)Width.
6. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:The fixed connecting rod
(9)For " H " shape structure, and fixed connecting rod(9)Mid diameter is equal to supporting block connecting hole(11)Internal diameter, fixed connecting rod(9)
Be fixedly connected with circular groove(7)Axis respectively with the first bridge survey item(2)With the second bridge survey item(6)Transversally bisecting line
Horizontal line, fixed connecting rod(9)Axis be fixedly connected with circular groove(7)The height of axis is equal, and is fixedly connected with circular groove(7)Diameter
Equal to fixed connecting rod(9)Left side outer diameter.
7. a kind of bridge pavement foldable multifunctional ruler according to claim 1, it is characterised in that:First adjusting is logical
Hole(13)Through-hole is adjusted with second(12)Diameter be equal to polynary angle scale(3)Smaller diameter end outer diameter, and first adjusts through-hole
(13)Through-hole is adjusted with second(12)The sum of height and polynary angle scale(3)Fixed lead seat is supported with road surface(14)Minor diameter
End height is equal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810804343.1A CN108680072B (en) | 2018-07-20 | 2018-07-20 | Bridge road surface is with multi-functional folding chi |
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CN201810804343.1A CN108680072B (en) | 2018-07-20 | 2018-07-20 | Bridge road surface is with multi-functional folding chi |
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CN108680072A true CN108680072A (en) | 2018-10-19 |
CN108680072B CN108680072B (en) | 2024-04-16 |
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Cited By (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 |
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CN207365867U (en) * | 2017-11-14 | 2018-05-15 | 张丰羽 | A kind of civil engineering measuring scale |
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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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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