CN104677339B - A kind of portable horizontal plane, vertical planar survey multifunction level meter - Google Patents
A kind of portable horizontal plane, vertical planar survey multifunction level meter Download PDFInfo
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- CN104677339B CN104677339B CN201510097861.0A CN201510097861A CN104677339B CN 104677339 B CN104677339 B CN 104677339B CN 201510097861 A CN201510097861 A CN 201510097861A CN 104677339 B CN104677339 B CN 104677339B
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- main body
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- 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
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
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- A Measuring Device Byusing Mechanical Method (AREA)
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Abstract
A kind of portable horizontal plane, vertical planar survey multifunction level meter, it is made up of main body, split left and right and extrusome, the split left and right is located at main body both sides, it is after extension and contraction control component is connected with main body, can be stretched up and down and left rotation and right rotation, extrusome is located in main body lower end, is connected in one with main body by way of flexible.Using the structural union for stretching, rotating be automatically positioned, horizon rule can be made to extend to nearly 3 times of main bodys by stretching（It is original）Length；Horizon rule is deformed into star-like, cross, T-shaped, yi word pattern etc. by rotating split left and right, directly can be used instead of existing angle square, square；Steeped by combining planar horizontal, measured in flat conditions that can be quickly to horizontal plane after star-like in rotation；Can quickly and easily to the overall leveling situation of perpendicular with reference to spirit bubble component.Suitable for the finishing measurement of various households or public place, the measurement of horizontal plane planarization and vertical plane planarization is particularly well-suited to.
Description
Technical field
The present invention relates to a kind of horizon rule for building, belong to horizon rule field of measuring technique.
Background technology
Use level chi is both needed in building, house ornamentation at present, with the popularization of laser type level meter, is lifted to a certain extent
The accuracy of measurement and the convenience of operation, to meet demand also show miniature horizon rule.But prior art is single,
Carry out there is following weak point when the aspects such as horizontal plane, perpendicular are measured：First, level meter is only applicable to general orientation
Levelling, routing, for the real-time operation during patch block etc. without special advantage；Second, existing miniature horizon rule measurement model
Enclose narrow, it is poor with property；3rd, it is difficult to make the level levelling of patch block quick judgement with horizon rule of the prior art；
4th, operation existing level chi can not be made to the overall leveling of vertical metope and fast and accurately judge；5th, existing level
Instrument is heavy, and high cost needs horizon rule to use cooperatively in operating process, and is difficult at will mobile use.
The content of the invention
The purpose of the present invention is directed to the shortcomings and deficiencies of prior art presence in technical background, there is provided a kind of flexible,
Angle square use can be worked as, the portable horizon rule of horizontal plane and vertical plane planarization can be quickly determined.
To achieve the above object, the present invention is adopted the following technical scheme that and is achieved：A kind of portable horizontal plane, vertical plane
Measurement multifunction level meter, is made up of main body, split left and right, extrusome three parts, and split left and right passes through extension and contraction control group
Part is connected in main body with flexible chute, and extrusome is connected in one by telescopic cavity with main body.
The profile of the main body is in " ten " font column, its upper end is arranged with can rotate, the spirit bubble component that adjusts and
Its mounting hole, is formed around the circular viewing hole of spirit bubble；The spirit bubble component by spirit bubble, rotate cylinder, regulation cylinder,
Cylindrical spring, fixed back-up ring, component top cover composition, the rotation cylinder are installed in main body and can be rotated, the rotation
Cylinder bottom be provided with cylindrical boss it is nested with main body after used for its rotation, it is described rotation cylinder end portion be provided with regulation circle
The mounting hole and fixing lug boss of post, the fixing lug boss are provided with the multiple positioning round orifice nested with regulation cylinder upper positioning column,
The position interior energy of the positioning round orifice makes regulation cylinder be positioned after realizing 45 ° or 135 ° rotations；The spirit bubble is installed on regulation
On cylinder, the insertion of regulation cylinder one end rotates the fixing lug boss of cylinder, by fixed back-up ring after other end periphery installation cylindrical spring
It is fixed on rotation cylinder；By to one end pushing fixed back-up ring and then just can promote regulation cylinder, make its locating dowel with
The positioning round orifice of solid boss is separated, then just can adjust after being rotated locating dowel in fixing lug boss with the position of positioning round orifice
Angle, you can change the anglec of rotation of regulation cylinder, and then change the angle of inclination of spirit bubble, realize that its 45 ° or 135 ° consolidate
It is fixed, for the measurement angled plane of tool.
Further, the top for rotating cylinder is provided with 4 cylindrical springs and spherical nose mounting hole, with spirit bubble group
Rotational positioning hole on part top cover is corresponding, after installing cylindrical spring and spherical nose, by the rotation of rotary motion cylindrical tip
Turning handle can be realized rotating 360 ° of cylinder rotations, so can drive adjust cylinder make spirit bubble also therewith 360 ° rotate, finally
Meet the measurement to perpendicular up rightness and horizontal plane planarization.
The inside of the end portion of the main body is telescopic cavity, and extrusome is placed for installing；The telescopic cavity
Bottom is provided with strong magnets mounting hole, for the fixation retracted when resetting to extrusome；The front and rear boss portion of the main body sets up separately
After having for the planar horizontal bubble and its mounting hole of detection level face flat conditions and for fixing 120 ° of split left and right rotation
The detent being automatically positioned.The profile of the extrusome matches with telescopic cavity, and telescopic section is provided with bar hole, when flexible
After body inserts telescopic cavity and mounting plane spirit bubble, being limited by its bar hole just can not extract out.
The left and right concave station part of the main body is provided with the flexible chute for being connected with split left and right and controls its flexible
Fixing hole, running fix pin mounting hole and spirit bubble mobile chute for split left and right telescopic moving and for controlling a left side
Automatic fixed location hole after right split rotation；In the middle part and bottom of flexible chute, its aperture is more than stretches the fixed hole position
Contracting chute diameter, split left and right controls its telescopic moving after being connected with main body through this fixing hole by extension and contraction control component；It is described fixed
The cylindrical hole that steady pin is nested is rotated in the Kong Weiyu split left and rights of position, it is distributed in the peripheral circumferential of fixing hole, when left and right
Can automatically be fixed when split is to both sides 45 ° or 90 ° or 120 ° of rotation, and then can be used as existing angle square, square and used；The shifting
The positioning plush copper of dynamic alignment pin is nested with the groove of split left and right, for guiding the flexible of split left and right and making its spinning reduction
Auto lock afterwards, for preventing split left and right autorotation.
The extension and contraction control component includes volute spring, boss with holes, fixing screws and nut, the length of the fixing screws
Degree is shorter than the front and rear width of split left and right, and installation is tightened distance of the back nut end face on rear side of split left and right and stretched equal in main body
The thickness of chute, the bar footpath of the fixing screws is identical with boss aperture with holes but less than chute diameter, the boss with holes
Two ends boss disk diameter is respectively equal to flexible chute and fixed bore dia, is installed in fixing screws, and volute spring is installed on two
Between boss with holes, extruding boss with holes is acted on by elastic force, make its big one end boss disk nested with fixing hole, and then prevented solid
Determine screw and split left and right prolongs flexible chute and moves, and then control the moving telescopic of split left and right, only press screw termination
Afterwards, big boss disk in boss with holes is moved to offside chute, cause its small boss disk nested with flexible chute, Jin Erfang
Can move split left and right, realize its longitudinal extension, the extension elongation for finally meeting split left and right is used, for being tested over long distances
The test of object level condition.
The bottom of the split left and right is provided with and is stretched in main body and the connecting hole for rotating, for installing extension and contraction control group
Part；The middle-end of the split left and right is provided with spirit bubble mounting hole and its peep hole；The inboard inwall of the split left and right is provided with
The groove nested with the running fix pin in main body, for ensuring the linearity in its telescopic process；The split left and right
Same plane is in by the front-back after stretching or rotation with main body.
The beneficial effects of the present invention are：First, by the two kinds of combinations of stretching of left and right turning arm and extrusome, can make
The entire length of horizon rule is extended for 2.8 times of original length, you can the accuracy of lifting measurement, in can meeting Code in Hazardous Special Locations again
Demand；Second, it is self-positioning with the 120 ° of rotations of left and right arm, three lines are formed with main body, in conjunction with planar horizontal bubble, can be fast
Speed carries out the horizontality measurement of horizontal plane, is particularly well-suited to paste the measurement of floor tile；3rd, with it is scalable with rotation it is left,
Right arm, can flexibly be combined into angle square, the square of different angles, you can carry out 45 °, 90 °, 120 ° of quick measurement, again may be used
Used instead of existing angle square, square；4th, location hole and detent are provided with, it is capable of achieving the convenient rotation of left and right arm, stretches
Contracting and positioning, can significantly lifting operation；5th, left and right arm is in same plane with main body, can be by main body near vertical plane
Test its it is vertical after, the planarization of perpendicular is judged by the gap between left and right arm and tested surface；6th, by level
Bubble carries out left rotation and right rotation and is adjusted with Plane Angle, you can save the quantity of spirit bubble needed for existing level chi, again can be in operation
Flexibly switching.
Brief description of the drawings
Fig. 1 is contour structures schematic diagram of the invention.
Fig. 2 is overall structure diagram of the invention.
Fig. 3 is flexible assembling schematic diagram of the invention.
Fig. 4 is spirit bubble assembling components schematic diagram of the invention.
Fig. 5 is spirit bubble component rotation schematic diagram of the invention.
Fig. 6 is integral telescopic schematic diagram of the invention.
Fig. 7 is integral-rotation schematic diagram of the invention.
Fig. 8 is use schematic diagram of the invention.
Fig. 9 is level measurement schematic diagram of the invention.
Figure 10 is vertical plane instrumentation plan of the invention.
Marked in figure：
1 is main body, and 2 is split left and right, and 3 is extrusome, and 4 is spirit bubble component；
To rotate cylinder, 4-2 is regulation cylinder to 4-1, and 4-2-1 is locating dowel, and 4-3 is component top cover, and 4-4 is spirit bubble,
4-5 is mounting hole, and 4-6 is fixing lug boss, and 4-6-1 is positioning round orifice, and 4-7 is cylindrical spring, and 4-8 fixes back-up ring, and 4-9 is cylinder
Spring, 4-10 is spherical nose, and 4-11 is rotational positioning hole；
5 steep for planar horizontal, and 6 is spirit bubble, and 7 is strong magnets installation cavity, and 8 is flexible chute, and 9 is extension and contraction control group
Part；
9-1 is screw, and 9-2 is boss with holes, and 9-3 is volute spring, and 9-4 is nut；
10 is fixing hole, and 11 is location hole, and 12 is detent, and 13 is rotation steady pin, and 14 is running fix pin；15 are
Groove, 16 is tested horizontal plane, and 17 is tested vertical plane, and 18 is gap.
Specific embodiment
The specific embodiment of each function of the invention is elaborated below by example combination accompanying drawing.
Such as Fig. 1, a kind of portable horizontal plane, vertical planar survey multifunction level meter are by main body 1, split left and right 2, flexible
Body 3 is constituted.The split left and right 2 is connected by extension and contraction control component 9 with main body 1, and extrusome 3 is connected by telescopic cavity with main body 1
It is connected into one.Spirit bubble component 4 is installed on the upper end of main body 1, and planar horizontal bubble 5 is installed on the lower end of main body, and spirit bubble 6 is installed
With the middle part of split left and right 2.
Such as Fig. 1, one is formed with main body 1 after split left and right 2 is to 1 spinning reduction of main body.As shown in Fig. 2 two figures of left and right
Respectively the front view and front view of horizon rule, the spirit bubble 6 on split left and right 2 can be directly passed through when that need to measure horizontal plane
The level condition of tested surface is read, can directly by the spirit bubble in spirit bubble component 4 when vertical plane vertical case need to be measured
4-4 reads the vertical case of tested surface.
As shown in figure 3, the connecting hole of split left and right 2 is connected by extension and contraction control component 9 with the fixing hole 10 in main body 1.
Right figure in Fig. 3 is the profile of flexible chute 8, in an initial condition, upper end boss 9- with holes in the extension and contraction control component 9
2 big boss disk is nested with fixing hole 10 in main body 1, and volute spring 9-3 is located in the telescopic cavity of main body 1（Two flexible chutes 8
Between）, its top contacts with this big boss side surface, and its bottom contacts with flexible chute 8, and small boss disk is located at split left and right 2
Connecting hole in, the big boss disk of the boss 9-2 with holes of lower end is nested with fixing hole 10, small boss disk be located at volute spring 9-3
It is interior, upper end boss 9-2 with holes is supported in the presence of spring force, make the fixing hole of its big boss disk and the bottom of flexible chute 8
10 preservations are relatively fixed, and then make split left and right 2 immovable, while can be rotated split left and right 2；When by split left and right
Screw 9-1 on 2 in extension and contraction control component 9 is pressed down on（See right figure in Fig. 3）, now upper end convex 9-2 platforms with holes are also under
Move, its big boss disk is separated with fixing hole, small boss disk is in fixing hole, similarly the small boss in the boss 9-2 with holes of lower end
Disk is in fixing hole 10, due to small boss disk diameter and the equal diameters of flexible chute 8, therefore by pulling split left and right 2
Just it can be made to prolong flexible chute 8 move, and then realize the flexible of split left and right 2, as shown in figure 4, split left and right 2 be provided with
The parallel groove 15 of flexible chute 8, and it is nested with the running fix pin 14 in main body 1 with installing, and then left and right point is extended contracting
Chute 8 and alignment pin 14 are moved in parallel, and are finally reached the effect such as Fig. 6, realize 2.8 times of stretchings.As shown in left in Figure 3, stretch
Contracting body 3 is arranged in main body 1 by the telescopic cavity of main body 1, on the magnet opening 7 in strong magnets installation and main body 1, when flexible
When the bottom of body 3 contacts with the bottom of main body 1, the suction of strong magnets is fixed to it.
As shown in figure 3, being provided with embedding with rotation steady pin 13 in split left and right 2 in the bottom of the left and right concave station part of main body 1
3 location holes of set, rotation steady pin 13 is made up of spring and round boss（See Fig. 3 right figures）, when split left and right 2 is rotated,
When 45 ° or 90 ° or 120 ° are rotated to, the spherical nose in rotation steady pin 13 is nested with location hole 11, and then is automatically positioned,
The final positioning for realizing 45 ° or 90 ° or 120 °（As shown in Figure 7）.Split left and right 2 is set to be stretched by aforesaid operations, when flexible
When control assembly 9 is moved to 1 middle part of main body, the screw 9-1 in component is nested with fixing hole 10 in flexible chute 8, due to fixation
Hole periphery is provided with 45 ° of location holes, now by left rotation and right rotation split left and right 2, you can by this horizon rule as 45° angle chi, 90 ° it is straight
Angle square is used, and specific design sketch is as shown in Figure 8.
As shown in Fig. 2 spirit bubble component is arranged on the upper end of main body 1.As shown in figure 4, spirit bubble component is by spirit bubble 4-
4th, cylinder 4-1, regulation cylinder 42, cylindrical spring 4-7, fixed back-up ring 4-8, component top cover 4-3 compositions are rotated.The rotation cylinder
1 can be rotated after its bottom cylindrical boss is nested with main body 1；Rotate the end portion of cylinder 1 and be provided with regulation cylinder
Mounting hole 4-5 and fixing lug boss 4-6, the fixing lug boss 4-6 are provided with nested with regulation cylinder 4-2 upper positioning columns 4-2-1
The position of multiple positioning round orifice 4-6-1, the positioning round orifice 4-6-1 can be such that regulation cylinder is positioned after realizing 45 ° or 135 ° rotations；
The spirit bubble 4-4 is installed on regulation cylinder 4-2, and the insertion of regulation cylinder 4-2 one end rotates the fixing lug boss 4-6 of cylinder 4-1
Afterwards, other end periphery is fixed on rotation cylinder 4-1 after installing cylindrical spring 4-7 by fixed back-up ring 4-8；Now, by one
The fixed back-up ring 4-8 of end extruding so promote regulation cylinder 4-2 final adjustment locating dowel 4-2-1 on fixing lug boss 4-6 with positioning
The position angle of circular hole 4-6-1, you can change the anglec of rotation of regulation cylinder 4-2, and then change the inclination angle of spirit bubble 4-4
Degree, finally realizes the fixation of its 45 ° or 135 °（As shown in Figure 5）, for measuring the angled plane of tool.Cylinder is rotated in Fig. 4
4-1 upper ends are provided with 4 cylindrical spring 4-9 and spherical nose 4-10 mounting holes, and spirit bubble component top cover 4-3 is provided with circular with this
Plush copper 4-10 nested rotational positioning hole 4-11, by the rotating handle on rotary motion cylinder 4-1, you can change it with main body 1
Relative position, and then realize 360 ° of the left and right rotation of spirit bubble（As shown in Figure 5）, and then meet quick measurement.
As shown in figure 9, being illustrated by taking the measurement of the level condition to pasting floor tile as an example, pasted floor tile need to be quickly being measured
Horizontal plane level condition when, directly the split left and right 2 of horizon rule can be rotated to angle as shown in Figure 9, such as Fig. 3 institutes
Show, main body 1 is provided with detent 12, just can be automatically positioned when split left and right 2 is rotated to 120 ° and fixation, such as Fig. 2 right figures
Shown main body 1 is in same plane with split left and right 2, now, the horizon rule mutually in 120 ° is positioned in tested plane 16,
Steeped by the planar horizontal checked in main body, just can quick obtaining survey the level condition in face, therefore for the measurement of patch floor tile
Will it is very convenient with it is accurate.
As shown in Figure 10, illustrated by taking the measurement of the flat conditions of the perpendicular to Wall brick as an example, needed quickly
When measuring the overall parallel condition of perpendicular, the split left and right 2 of horizon rule directly can be rotated into such as Figure 10 left hand view institute
The angle shown, while the spirit bubble component in rotating mass 1 makes spirit bubble consistent with Figure 10；Main body 1 as shown in Figure 3 is provided with fixed
Position groove 12, just can be automatically positioned and fixation, main body 1 and left and right point as shown in Fig. 2 right figures when split left and right 2 is rotated to 90 °
Body 2 is in same plane, mutually will be close on tested vertical plane 17 in the main body 1 of 90 ° of horizon rule, and adjustment main body 1 makes level
Bubble is horizontal, when split left and right and measured surface have gap 18 or not usually, you can quick to judge measured surface not
It is smooth（Such as Figure 10 downsides figure）, finally realize convenient measurement and it is quick judge, for Wall brick measurement will it is very convenient with it is accurate
Really.
In sum, with the flexible connection mode with rotation combination, by stretching, rotating, adjusting the left side in horizon rule
Right split, extrusome and spirit bubble component etc., you can the limit of realizing horizon rule is flexible, it is accurate judge, it is quick to plane, vertically
Face measures, and is used instead of existing angle square, square.
Claims (3)
1. a kind of portable horizontal plane, vertical planar survey multifunction level meter, by main body, split left and right, the big portion of extrusome three
It is grouped into, split left and right is connected in main body by extension and contraction control component and flexible chute, extrusome passes through telescopic cavity and master
Body is connected in one；
The profile of the main body is in " ten " font column, and its upper end is arranged with can rotate, the spirit bubble component that adjusts and its peace
Dress hole, is formed around the circular viewing hole of spirit bubble；The spirit bubble component is by spirit bubble, rotation cylinder, regulation cylinder, cylindricality
Spring, fixed back-up ring, component top cover composition, the rotation cylinder are installed in main body and can be rotated, the rotation cylinder
End portion is provided with the mounting hole and fixing lug boss of regulation cylinder, and the fixing lug boss is provided with embedding with regulation cylinder upper positioning column
Multiple positioning round orifice of set, the position of the positioning round orifice can be such that regulation cylinder is positioned after realizing 45 ° or 135 ° rotations；The water
Flat bubble is installed on regulation cylinder, and the insertion of regulation cylinder one end rotates the fixing lug boss of cylinder, and cylindricality bullet is installed in other end periphery
It is fixed on rotation cylinder by fixed back-up ring after spring；
The top for rotating cylinder is provided with the rotation on 4 cylindrical springs and spherical nose mounting hole, with spirit bubble component top cover
Turn location hole corresponding, after cylindrical spring and spherical nose are installed, can be realized by the rotating handle of rotary motion cylindrical tip
Rotate 360 ° of rotations of cylinder.
2. a kind of portable horizontal plane according to claim 1, vertical planar survey multifunction level meter, it is characterised in that
The front and rear projection section of the main body is provided with planar horizontal bubble and its mounting hole, Yi Jiyong for detection level face flat conditions
The detent being automatically positioned after 120 ° is rotated in fixed split left and right.
3. a kind of portable horizontal plane according to claim 1, vertical planar survey multifunction level meter, it is characterised in that
The left and right concave station part of the main body is provided with the flexible chute for being connected with split left and right and controls its flexible fixing hole, uses
In the running fix pin mounting hole and spirit bubble mobile chute of split left and right telescopic moving and for controlling split left and right to rotate
The location hole fixed automatically afterwards；The location hole is and the cylindrical hole that steady pin is nested is rotated in split left and right, and it is distributed in
In the peripheral circumferential of fixing hole, can be fixed automatically when split left and right rotates 45 ° or 90 ° or 120 ° to both sides, and then can be used as
Existing angle square is used；The positioning plush copper of the running fix pin is nested with the groove of split left and right, for guiding split left and right
It is flexible and make the auto lock after its spinning reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097861.0A CN104677339B (en) | 2015-03-05 | 2015-03-05 | A kind of portable horizontal plane, vertical planar survey multifunction level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097861.0A CN104677339B (en) | 2015-03-05 | 2015-03-05 | A kind of portable horizontal plane, vertical planar survey multifunction level meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104677339A CN104677339A (en) | 2015-06-03 |
| CN104677339B true CN104677339B (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097861.0A Expired - Fee Related CN104677339B (en) | 2015-03-05 | 2015-03-05 | A kind of portable horizontal plane, vertical planar survey multifunction level meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104677339B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524999A (en) * | 2015-09-11 | 2017-03-22 | 广西大学 | Mechanical sucking disc type level indicator |
| CN105318812A (en) * | 2015-12-02 | 2016-02-10 | 苏州莱测检测科技有限公司 | Right-angle detector |
| CN109141360B (en) * | 2018-09-27 | 2020-11-10 | 徐州市帝龙新型墙体材料有限公司 | Automatic measuring and positioning structure of sliding inclinometer and using method thereof |
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| CN2560920Y (en) * | 2002-08-15 | 2003-07-16 | 施福有 | Two-directional telescopic level ruler |
| CN203908548U (en) * | 2014-07-04 | 2014-10-29 | 宁波美成生物科技有限公司 | Triangular gradienter |
| CN203928921U (en) * | 2014-04-16 | 2014-11-05 | 国家电网公司 | Power matching network engineering measuring scale |
| CN204388850U (en) * | 2015-03-05 | 2015-06-10 | 曹进 | A kind of portable multi-function surveyor's staff |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6543148B2 (en) * | 1998-11-16 | 2003-04-08 | Michael F. Tufariello | Level with plumb alignment features |
| JP4019210B2 (en) * | 2002-02-26 | 2007-12-12 | 秀樹 圓山 | Horizontal ruler with clip |
| CN2804799Y (en) * | 2005-04-26 | 2006-08-09 | 曹五星 | Folding multi-purpose horizon measuring means |
| GB0606924D0 (en) * | 2006-04-07 | 2006-05-17 | Sparrow Paul A | Coloured-illuminated sonic level, set square and angle finder |
| KR20150000396U (en) * | 2013-07-17 | 2015-01-27 | 현대중공업 주식회사 | Rotatable ruler for level measurement |
| CN203837698U (en) * | 2014-05-27 | 2014-09-17 | 周贵英 | Level gauge allowing wide range measurement |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2560920Y (en) * | 2002-08-15 | 2003-07-16 | 施福有 | Two-directional telescopic level ruler |
| CN203928921U (en) * | 2014-04-16 | 2014-11-05 | 国家电网公司 | Power matching network engineering measuring scale |
| CN203908548U (en) * | 2014-07-04 | 2014-10-29 | 宁波美成生物科技有限公司 | Triangular gradienter |
| CN204388850U (en) * | 2015-03-05 | 2015-06-10 | 曹进 | A kind of portable multi-function surveyor's staff |
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| CN104677339A (en) | 2015-06-03 |
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Inventor after: Wu Minghua Inventor before: Cao Jin |
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