CN209372047U - Underground theodolite centering wind-proof device - Google Patents
Underground theodolite centering wind-proof device Download PDFInfo
- Publication number
- CN209372047U CN209372047U CN201821924769.2U CN201821924769U CN209372047U CN 209372047 U CN209372047 U CN 209372047U CN 201821924769 U CN201821924769 U CN 201821924769U CN 209372047 U CN209372047 U CN 209372047U
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- CN
- China
- Prior art keywords
- cylindrical drum
- underground
- proof device
- wind
- theodolite
- 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
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- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
It is by several diameters 100-150mm the utility model discloses underground theodolite centering wind-proof device, the transparent hard plastic cylindrical drum of length 400mm forms, and there are the male screw of same diameter and flight lead and female screw in cylindrical drum both ends respectively.The production of this underground theodolite centering wind-proof device is simple, practical, solves the problems, such as that measuring instrument carries out the distinguished and admirable influence to accuracy of alignment of centring under point.
Description
Technical field
The utility model relates to mine construction fields, and in particular to underground theodolite centering wind-proof device.
Background technique
Existing coal mine down-hole tunnel wind speed is larger, and centering is difficult on Theodolite Measuring Point, does not take any protection typically now
Wind deflector is artificially arranged in measure, but since condition restriction effect is bad, influences measurement accuracy.
Utility model content
Of the existing technology in order to overcome the problems, such as, the utility model provides underground theodolite centering wind-proof device.
The utility model solves technical solution used by above-mentioned technical problem:
Underground theodolite centering wind-proof device, described device are a transparent hard plastic cylindrical drum；
The cylindrical drum diameter is 100-150mm；
The cylindrical drum length is 400mm；
There are the male screw of same diameter and flight lead and female screw in the cylindrical drum both ends respectively；
The cylindrical drum is several.
Compared with prior art, the utility model has the following beneficial effects:
1. transparent hard plastic cylindrical drum wind-proof device prevents distinguished and admirable shadow suitable for all measuring instruments progress centring under point
It rings.Since transparent hard plastic cylindrical drum has all obstructed the distinguished and admirable influence to plumb bob, vertical line from all directions, the perpendicular of plumb bob ensure that
Straight degree, to ensure that the precision of measurement；
2. structure is simple, cost is relatively low, and easy to make, practicability is stronger, can solve completely situation measuring instrument into
Row centring under point prevents distinguished and admirable influence.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- transparent hard plastic cylindrical drum；2- public affairs screw；Mother's 3- screw.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model discloses underground theodolite centering wind-proof device to be by several diameters be twice of centering plumb bob it is left
The right side is 100-150mm, and the transparent hard plastic cylindrical drum composition of length about 400mm, there are same diameter and silk in cylindrical drum both ends respectively
Away from male screw and female screw convenient for docking two-by-two.Centering plumb bob and vertical line are worn from transparent hard plastic cylindrical drum when use
It crosses, makes transparent hard plastic cylindrical drum up and down substantially close to measuring point and measuring instrument, due to the comprehensive resistance of transparent hard plastic cylindrical drum
Every the distinguished and admirable influence to plumb bob and vertical line, while its transparency has convenient for whether survey crew's observation plumb bob and vertical line are static,
Improve the precision of measurement centring under point.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (1)
1. underground theodolite centering wind-proof device, which is characterized in that described device is a transparent hard plastic cylindrical drum；
The cylindrical drum diameter is 100-150mm；
The cylindrical drum length is 400mm；
There are the male screw of same diameter and flight lead and female screw in the cylindrical drum both ends respectively；
The cylindrical drum is several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821924769.2U CN209372047U (en) | 2018-11-21 | 2018-11-21 | Underground theodolite centering wind-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821924769.2U CN209372047U (en) | 2018-11-21 | 2018-11-21 | Underground theodolite centering wind-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372047U true CN209372047U (en) | 2019-09-10 |
Family
ID=67833405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821924769.2U Expired - Fee Related CN209372047U (en) | 2018-11-21 | 2018-11-21 | Underground theodolite centering wind-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372047U (en) |
-
2018
- 2018-11-21 CN CN201821924769.2U patent/CN209372047U/en not_active Expired - Fee Related
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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: 20190910 Termination date: 20191121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |