CN207894405U - A kind of telescopic levelling rod - Google Patents
A kind of telescopic levelling rod Download PDFInfo
- Publication number
- CN207894405U CN207894405U CN201820107888.2U CN201820107888U CN207894405U CN 207894405 U CN207894405 U CN 207894405U CN 201820107888 U CN201820107888 U CN 201820107888U CN 207894405 U CN207894405 U CN 207894405U
- Authority
- CN
- China
- Prior art keywords
- mobile jib
- secondary bar
- levelling rod
- measurement range
- steel ruler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A kind of telescopic levelling rod is used for engineering measurement field, is particularly suitable for the leveling observation of the larger measuring point of height difference.Its skeleton is made of mobile jib and secondary bar, and secondary bar is sheathed in mobile jib, and secondary bar is equipped with sliding handle, and rail plate that can be manually by secondary bar along mobile jib slides.When secondary bar generation slides up and down, flexible steel ruler generates corresponding rotation by shaft, so as to increase or reduce measurement range.When measurement range is in mobile jib measurement range, without adjusting levelling rod height, directly measure, if more than the measurement range of mobile jib, it can freely raise secondary bar and increase measurement range, reduce turning point number and carry the quantity of levelling rod, under the premise of ensureing levelling rod precision, it is easy to operate simple, it is easy to carry, it is brought convenience for the work of survey crew.
Description
Technical field
The utility model is a kind of instrument for being related to engineering measurement field, is particularly suitable for the level of the larger measuring point of height difference
Observation.
Background technology
In engineering construction field, the measurement of higher degree at control point occupies consequence, directly influences engineering structure
Safety and stability.Currently, the prefered method of the measurement of higher degree is still the measurement of the level, existing levelling rod is usually all independent
Two meters or independent three meters of levelling rods.In the slightly larger area of hypsography, multiple turning point is needed using two meters of levelling rods, is held
It is also easy to produce large error, or even the case where cannot be satisfied measurement request occurs, and three meters of levelling rod length are longer, are not easy to utilize
Car carries, and the space occupied is larger.Therefore, it is necessary to be improved to its structure, keep levelling rod more convenient and practical.
Invention content
The purpose of this utility model is that：For the area slightly larger in hypsography, two meters of water when measuring point height difference is larger
Object staff needs multiple turning point, easy tos produce error, or even cannot be satisfied measurement request, and three meters of levelling rod length are longer, are not easy to
The problem of carrying, reducing measurement efficiency, the utility model provide a kind of scalable levelling rod.The levelling rod deft design, is convenient for
It measures and carries.
To achieve the goals above, the technical solution adopted in the utility model is as follows.
The levelling rod skeleton is made of mobile jib and secondary bar, and secondary bar is sheathed in mobile jib.
Lower end is fixed on mobile jib pedestal on the outside of flexible steel ruler, and edge is fixed on mobile jib, and in secondary bar groove 13,
It is all around moved with ensureing that steel ruler does not generate, groove 13 can be slided up and down with steel ruler.Steel ruler, which bypasses, to be located at the top of secondary bar
Shaft is connect with the spring inside mobile jib, and spring bottom is fixed on mobile jib pedestal, to generate pulling force to steel ruler, steel ruler is made to protect
Hold vertical tension.
Secondary bar is equipped with sliding handle, and rail plate that can be manually by secondary bar along mobile jib slides.It glides when in secondary bar generation
When dynamic, flexible steel ruler generates corresponding rotation by shaft, so as to increase or reduce measurement range.
The mobile jib setting fastening screw, is inserted into the fastening grooves 12 of secondary bar, for braking internal secondary bar, and protects just
Secondary bar is not generated and is moved forward and backward.
Two circular bubbles up and down are set on mobile jib, it is whether vertical for demarcating levelling rod.
The utility model has the beneficial effects that：When measurement range is in mobile jib measurement range, without adjusting levelling rod height,
Directly measure, if more than mobile jib measurement range, can freely raise secondary bar increase measurement range, reduce turning point number and
The quantity for carrying levelling rod, it is easy to operate simple under the premise of ensureing levelling rod precision, it is easy to carry, it is survey crew's
Work is brought convenience.
Description of the drawings
Front view when Fig. 1 is levelling rod contraction state, front view when Fig. 2 is levelling rod elongation certain length.
Left view when Fig. 3 is levelling rod contraction state, left view when Fig. 4 is levelling rod elongation certain length.
Rear view when Fig. 5 is levelling rod contraction state, rear view when Fig. 6 is levelling rod elongation certain length.
Fig. 7 is A-A sectional views in Fig. 2.
Fig. 8 is the partial enlarged view of B in Fig. 7.
In figure, 1- mobile jibs, 2- mobile jib pedestals, 3- flexibility steel rulers, 4- secondary bars, 5- fastening screws, 6- shafts, 7- sliding hands
Handle, 8- springs, the upper circular bubbles of 9-, circular bubble under 10-, 11- rail plates, 12- fastening grooves, 13- secondary bar grooves.
Specific implementation mode
As shown in Fig. 1 ~ 8, a kind of telescopic levelling rod, including mobile jib 1, mobile jib pedestal 2, flexible steel ruler 3, secondary bar 4, tightly
Gu screw 5, shaft 6, sliding handle 7, spring 8, upper circular bubble 9, lower circular bubble 10.3 outside lower end of flexible steel ruler is fixed
On mobile jib pedestal 2, edge is fixed on mobile jib 1, and in secondary bar groove 13, is all around moved with ensureing that steel ruler does not generate
Dynamic, groove 13 can be slided up and down with steel ruler.Steel ruler bypasses the shaft 6 being located at the top of secondary bar, connects with the spring 8 inside mobile jib
It connects, spring bottom is fixed on mobile jib pedestal 2, to generate pulling force to steel ruler, so that steel ruler is kept vertical and is tensed.It can be secondary by pushing and pulling
Fastening screw 5 of the secondary bar in the rail plate sliding of mobile jib, mobile jib can be used for braking by the sliding handle 7 on bar manually
Internal secondary bar, upper circular bubble 9 and lower circular bubble 10, it is whether vertical for demarcating levelling rod.
Utility model works flow：Before use, levelling rod is adjusted into levelling rod height according to specific geographic environment first,
When measurement range is in mobile jib measurement range, without extending levelling rod, fastening screw 5 is tightened；When measurement range is measured in mobile jib
When other than range, fastening screw 5 is unclamped, pushes sliding handle 7, extends in levelling rod to measurement range, tightens fastening screw 5,
Secondary bar is kept no longer to slide.Select circular bubble appropriate that levelling rod blade is kept vertical according to measuring point height.Then water is used
Quasi- instrument focusing, reads the data on steel ruler.After use, fastening screw 5 is unclamped, ruler is retracted, and tighten fastening screw.
Any modification, replacement and improvement made within the spirit and principle of the present invention etc., belong to this reality
With novel protection domain.
Claims (1)
1. a kind of telescopic levelling rod, including mobile jib（1）, mobile jib pedestal（2）, flexible steel ruler（3）, secondary bar（4）, fastening screw
（5）, shaft（6）, sliding handle（7）, spring（8）, upper circular bubble（9）, lower circular bubble（10）, it is characterized in that：Levelling rod
Skeleton is made of mobile jib and secondary bar, and secondary bar is sheathed in mobile jib, and secondary bar is equipped with sliding handle, can be slided along the rail plate of mobile jib
Dynamic, lower end is fixed on mobile jib pedestal on the outside of flexible steel ruler, and edge is fixed on mobile jib, and is located at secondary bar groove（13）It is interior, it is secondary
Bar groove（13）It can be slided up and down with steel ruler, steel ruler bypasses the shaft being located at the top of secondary bar, is connect with the spring inside mobile jib,
Spring bottom is fixed on mobile jib pedestal, and when secondary bar generation slides up and down, flexible steel ruler generates corresponding rotation by shaft, from
And measurement range can be increased or reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820107888.2U CN207894405U (en) | 2018-01-23 | 2018-01-23 | A kind of telescopic levelling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820107888.2U CN207894405U (en) | 2018-01-23 | 2018-01-23 | A kind of telescopic levelling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207894405U true CN207894405U (en) | 2018-09-21 |
Family
ID=63545643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820107888.2U Expired - Fee Related CN207894405U (en) | 2018-01-23 | 2018-01-23 | A kind of telescopic levelling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207894405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017811A (en) * | 2018-12-29 | 2019-07-16 | 青岛理工大学 | Retractable electronic level indium steel chi |
| CN110307823A (en) * | 2019-06-19 | 2019-10-08 | 湘潭大学 | A kind of suspension type digital levelling instrument and measurement method |
-
2018
- 2018-01-23 CN CN201820107888.2U patent/CN207894405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017811A (en) * | 2018-12-29 | 2019-07-16 | 青岛理工大学 | Retractable electronic level indium steel chi |
| CN110307823A (en) * | 2019-06-19 | 2019-10-08 | 湘潭大学 | A kind of suspension type digital levelling instrument and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20200123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |