CN206247989U - Instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width - Google Patents
Instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width Download PDFInfo
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- CN206247989U CN206247989U CN201621185952.6U CN201621185952U CN206247989U CN 206247989 U CN206247989 U CN 206247989U CN 201621185952 U CN201621185952 U CN 201621185952U CN 206247989 U CN206247989 U CN 206247989U
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- gusset plate
- instrument
- measuring staff
- bottom chord
- plate inner
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Abstract
The utility model discloses a kind of instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width, including being provided with externally threaded measuring staff, it is sheathed on measuring staff and covers the moving casing that at least part of screw thread and end are welded and fixed with measuring staff, and one end is provided with the fix bar of internal thread hole；The periphery of the moving casing has graduation mark.The instrument of the present embodiment is not limited to the measurement of gusset plate edge side, and the width dimensions for gusset plate inner side diverse location are capable of achieving to accurately measure, it is ensured that top-bottom chord welding assembly precision, economic, practical, reliable.
Description
Technical field
The utility model belongs to survey tool field, especially a kind of for measuring in steel truss girder bridge top-bottom chord gusset plate
Instrument wide.
Background technology
The top-bottom chord of steel truss girder bridge is connected with web member using plug-in type, the inboard width requirement to top-bottom chord gusset plate
Extremely strict, its inner width tolerance range is+1~+2mm.Current existing survey tool is limited only to the measurement of gusset plate edge,
Cannot then realize accurately measuring for the width dimensions of gusset plate inner side.
Utility model content
Utility model purpose：A kind of instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width is provided, to solve
The technical problem that prior art is present, realizes accurately measuring.
Technical scheme：It is a kind of for measuring the instrument of steel truss girder bridge top-bottom chord gusset plate inner width, including be provided with outer spiral shell
The measuring staff of line, is sheathed on measuring staff and covers the moving casing that at least part of screw thread and end are welded and fixed with measuring staff, and one end
It is provided with the fix bar of internal thread hole；The periphery of the moving casing has graduation mark.
In the further example, externally threaded pitch is 1mm on the measuring staff.The measuring staff and fix bar are steel
The body of rod, the moving casing is steel tube.One end of the fix bar coordinates with measuring staff and moving casing, if the other end is hinged with
Dry auxiliary locator.The two ends of the fix bar are respectively arranged with internal thread hole, each with one group of measuring staff and moving casing
Coordinate.
Beneficial effect：The instrument of the present embodiment is not limited to the measurement of gusset plate edge side, different for gusset plate inner side
The width dimensions of position are capable of achieving to accurately measure, it is ensured that top-bottom chord welding assembly precision, economic, practical, reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Fig. 3 is the structural representation of the utility model embodiment three.
Specific embodiment
As shown in figure 1, the utility model includes measuring staff 1, moving casing 2 and fix bar 3.Measuring staff movable part is M12x1
External screw thread, measuring staff and moving casing assembling after be welded as a whole, the termination of fix bar one is processed as M12x1 internal threads.It is living
During dynamic sleeve rotating one week, measurement bar will advance or retrogressing 1mm.There are ten lattices on moving casing periphery, more than 1mm by solid
Fixed pole high scale directly reads.Part less than 1mm is measured by the groove on moving casing periphery, can be read carefully and thoroughly to decimal point 1
Position, estimates reading to 2 significant digits.Bridge top-bottom chord gusset plate inner width theoretical size is 800mm, measurement range 800 ±
10mm。
As shown in Fig. 2 describing embodiment of the present utility model two.In this embodiment, the two ends of fix bar are provided with
The internal thread hole of longitudinal direction, uses cooperatively with one group of measuring staff and sleeve pipe respectively.Measuring staff is provided with the external screw thread being adapted to internal thread hole.
Casing pipe sleeve is on measuring staff and covers female thread portion, and end and the measuring staff of sleeve pipe are welded and fixed.Two groups of pitch of moving casing
I.e. scale value can be respectively used to accurate adjustment and coarse adjustment with difference.
As shown in figure 3, describing embodiment of the present utility model three.In this embodiment, in one end of fix bar is provided with
Screwed hole, uses cooperatively with measuring staff and moving casing.The other end rotates connection (being hinged) at least two groups auxiliary legs 4 (auxiliary
Positioner), by auxiliary locator, measuring staff can be made vertical with plane holding, it is to avoid deviation, so as to improve the standard of measurement
True property.
In a word, this survey tool is directed to the inboard width size design of bridge top-bottom chord gusset plate one kind based on base
This size, stroke is the survey tool of ± 10mm, and effectively top-bottom chord gusset plate inner width size is tested, and is rod member
Bridge location is installed and provides reliable guarantee, and operate flexibility and reliability, convenient and swift, is obtained very in the weldering production of bridge top-bottom chord group
Good application.There are welding deformation and two gusset plate profiles after being directed to existing lower boom complex structure, welding in the utility model
Size is larger, in order to ensure to be precisely controlled what two gusset plate inner distances were specially designed and produced in manufacturing.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various equivalents, and these equivalents belong to protection domain of the present utility model.
Claims (5)
1. a kind of instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width, it is characterised in that including being provided with outer spiral shell
The measuring staff of line（1）, it is sheathed on measuring staff and covers the moving casing that at least part of screw thread and end are welded and fixed with measuring staff（2）, with
And one end is provided with the fix bar of internal thread hole；The periphery of the moving casing has graduation mark.
2. it is used to measure the instrument of steel truss girder bridge top-bottom chord gusset plate inner width as claimed in claim 1, it is characterised in that institute
It is 1mm to state externally threaded pitch on measuring staff.
3. it is used to measure the instrument of steel truss girder bridge top-bottom chord gusset plate inner width as claimed in claim 1 or 2, its feature exists
In the measuring staff and fix bar are the steel body of rod, and the moving casing is steel tube.
4. the instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width described in claim 1 or 2, it is characterised in that
One end of the fix bar coordinates with measuring staff and moving casing, and the other end is hinged with several auxiliary locators.
5. it is used to measure the instrument of steel truss girder bridge top-bottom chord gusset plate inner width as claimed in claim 1, it is characterised in that institute
The two ends for stating fix bar are respectively arranged with internal thread hole, each coordinate with one group of measuring staff and moving casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185952.6U CN206247989U (en) | 2016-10-28 | 2016-10-28 | Instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185952.6U CN206247989U (en) | 2016-10-28 | 2016-10-28 | Instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206247989U true CN206247989U (en) | 2017-06-13 |
Family
ID=58996285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621185952.6U Active CN206247989U (en) | 2016-10-28 | 2016-10-28 | Instrument for measuring steel truss girder bridge top-bottom chord gusset plate inner width |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206247989U (en) |
-
2016
- 2016-10-28 CN CN201621185952.6U patent/CN206247989U/en active Active
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