CN207894346U - A kind of tunnel roof and floor range measurement bar - Google Patents
A kind of tunnel roof and floor range measurement bar Download PDFInfo
- Publication number
- CN207894346U CN207894346U CN201820028570.5U CN201820028570U CN207894346U CN 207894346 U CN207894346 U CN 207894346U CN 201820028570 U CN201820028570 U CN 201820028570U CN 207894346 U CN207894346 U CN 207894346U
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- Prior art keywords
- tape measure
- rod
- measuring staff
- bar
- tape
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model is related to lane surface displacement field of measuring technique more particularly to a kind of tunnel roof and floor range measurement bars.The device is made of measuring staff upper mechanism, measuring staff lower mechanisms.Measuring staff upper mechanism is withstood into back, measuring staff lower mechanisms are extended to bottom plate by rotating inner part threaded rod, smooth cord hangs up measurement hammer, it is made to fall to bottom plate naturally, and it is tunnel roof and floor distance to read tape measure registration in reading opening.The utility model is simple in structure, easy to operate, highly practical, solves the problems, such as to measure hardly possible in the case of back whitewashing, bottom plate ponding, and convenient reading, accuracy are high, reduce labor intensity, improve measurement efficiency.
Description
Technical field
The utility model is related to lane surface displacement field of measuring technique more particularly to a kind of tunnel roof and floor range measurements
Bar.
Background technology
Deformation of the surrounding rock in tunnel measurement is the important content of mine pressure monitoring, especially during coal working face back production, is surpassed
Preceding coverage constantly moves forward with the propulsion of working face, and by advanced pressure influence, back sinks obviously, and pucking is tight
Weight, causes tunnel roof to floor convergence excessive, and especially in complex geologic conditions region, tunnel residual altitude is unsatisfactory for end machinery
Safety affects the safe efficient production of mine, and therefore, roof and floor distance in tunnel is quickly and effectively measured to disclosing work
Make face strata pressure laws, instructs work on the spot significant.
Currently, existing tunnel roof and floor distance measurement method is mainly the following, one kind is beaten respectively in tunnel roof and floor
Enter Short bolt setting basic point, measure the distance between two basic points, the difference measured twice is tunnel roof to floor convergence；Another kind,
Between measuring staff is withstood on tunnel roof and floor, the variable quantity of measuring staff length is tunnel roof to floor convergence.Tunnel top in front of working face
The measurement of bottom plate distance is influenced constantly to change by the advance of the face, and when being measured using method one, each basic point cannot be abundant
It utilizes, not only increases process, also waste a large amount of anchor pole；When being measured using method two, measuring staff need to withstand on always tunnel top bottom
Between plate, working space is reduced, difficulty is brought to normal work, in addition, measuring staff cost is big, is spent high.In addition to this, in scene
Staff catches on anchor rod pallet board for convenience, by common steel tape top, bottom end close to bottom plate to tunnel roof and floor distance into
Row measures, and not only error is big for the method, but also can not be applicable in the tunnel of top plate whitewashing.
Utility model content
In order to solve above-mentioned problems of the prior art, the utility model proposes a kind of tunnel roof and floor distances to survey
Gauge rod, simple in structure, easy to operate, applicable ability is wide, improves the efficiency of measurement.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of tunnel roof and floor range measurement bar, which is characterized in that it is by measuring staff upper mechanism, measuring staff lower mechanisms group
At measuring staff lower mechanisms are located at below measuring staff upper mechanism, are connected through a screw thread.Wherein：
The measuring staff upper mechanism include top the body of rod and be located at top the body of rod in measuring unit, wherein：
The top body of rod is made of the symmetrical left half body of rod, the right half body of rod, is fixedly connected by fixed bolt；On
Square bar body is internally provided with tape measure storehouse and tape measure channel, and tape measure channel is respectively fixed with pulley in bending section and top horizontal section；On
Square bar body lower part, tape measure storehouse top are equipped with rectangle reading opening, and reading opening is penetrated through with internal tape measure channel, and centre is equipped with transparent glass
Glass plate posts cross-line on glass plate；
The measuring unit includes bend tape casing, tape measure, smooth thin line and measures hammer, the steel of tape measure and bend tape casing composition
Tape measure is fixed on by the left half body of rod and the extruding of the right half body of rod in tape measure storehouse；The initial graduation mark of tape measure is overlapped with cross-line, and
Its top is fixedly connected with smooth thin line one end；The smooth thin line other end passes through tape measure channel and setting inside the body of rod of top to exist
After pulley in tape measure channel, it is pierced by by body of rod top horizontal segment above measuring staff, end point is provided with hook, is used for and measurement
Hammer dismantling connection into shape；
The measuring staff lower mechanisms include external screw-thread bar and internal whorl bar, and internal whorl bar is hollow stem, and interior table
Face is equipped with screw thread；External screw-thread rod outer surface is equipped with screw thread, and both ends pass through screw thread with square bar on measuring staff and internal whorl bar respectively
It is detachably connected.
In order to reduce the error of measurement, the pulley in tape measure channel is used to reduce smooth cord and tape measure channel inner surface
Friction；The initial scale of tape measure be when measure hammer naturally droop, smooth cord tense, initial graduation mark overlapped with cross-line when, on
Square bar body top horizontal segment upper surface and the vertical range for measuring hammer bottom end.
In use, top body of rod top horizontal segment is withstood back, extended under measuring staff by rotating inner part threaded rod
Portion mechanism makes it fall to bottom plate naturally to bottom plate after smooth cord hangs up measurement hammer, and reading steel tape registration in reading opening is
Tunnel roof and floor distance.
The beneficial effects of the utility model and advantage：The utility model realizes measuring rod pair by rotating inner part threaded rod
The fixation of tunnel roof and floor distance reduces process when arrangement basic point measures, overcomes and whitewash to top plate in work on the spot
Tunnel measures difficult problem；The setting that pulling tape measure is naturally drooped by measuring hammer, realizes tunnel roof and floor vertical range
Measurement, reduce due to upper and lower basic point arranges out of plumb and the error that generates, overcome due to roadway floor ponding, measure tired
Difficult problem；By the setting of reading opening, the vertical reading to tape measure is realized, measurement accuracy is improved, reduced reading and miss
Difference.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 2 is the internal structure schematic diagram at the A of Fig. 1.
Fig. 3 is the internal structure schematic diagram at the B of Fig. 1.
Fig. 4 is the internal structure schematic diagram at the C of Fig. 1.
Fig. 5 is the internal structure schematic diagram at the D of Fig. 1.
In figure：1- measuring staff upper mechanisms, the tops the 11- body of rod, the 111- left half bodies of rod, the 112- right half bodies of rod, 12- tape measures
Storehouse, 13- tape measures channel, 14- pulleys, 15- reading openings, 16- fixed bolts, 17- transparency glass plates, 18- cross-lines；
2- measuring staff lower mechanisms, 21- external screw-thread bars, 22- internal whorl bars；
3- measuring units, 31- bend tape casings, 32- tape measures, 33- smooth thin lines, 34- measure hammer.
Specific implementation mode
The utility model provides a kind of tunnel roof and floor range measurement bar, in order to make the purpose of this utility model, technology
Scheme and advantage become apparent from, are clear, and the utility model is further described below with reference to attached drawing and specific embodiment.
As shown in Fig. 1-5, a kind of tunnel roof and floor range measurement bar comprising measuring staff upper mechanism 1, measuring staff lower part machine
Structure 2, measuring staff lower mechanisms 2 are located at 1 lower section of measuring staff upper mechanism, are connected through a screw thread.Wherein：
Specifically, measuring staff upper mechanism 1 includes the top body of rod 11 and the measuring unit 3 being located in the body of rod 11 of top；
The top body of rod 11 forms 112 by the symmetrical left half body of rod 111, the right half body of rod, is fixed by fixed bolt 16
Connection；The top body of rod 11 is internally provided with tape measure storehouse 12 and tape measure channel 13, and tape measure channel 13 is in bending section and top horizontal section point
It is not fixed with pulley 14；11 lower part of the top body of rod, 12 top of tape measure storehouse are equipped with rectangle reading opening 15, reading opening 15 and internal tape measure
Channel 13 penetrates through, and centre is equipped with transparency glass plate 17, and cross-line 18 is posted on glass plate；
Measuring unit includes bend tape casing 31, tape measure 32, smooth thin line 33 and measures hammer 34, bend tape casing 31 and tape measure 32
The steel tape of composition is fixed on by the left half body of rod 111 and the extruding of the right half body of rod 112 in tape measure storehouse 12；32 initial scale of tape measure
Line is overlapped with cross-line 18, and its top is fixedly connected with 33 one end of smooth thin line；33 other end of smooth thin line passes through upper square bar
Behind 11 inside tape measure channel 13 of body and the pulley 14 being arranged in tape measure channel 13, worn by 11 top horizontal segment of the body of rod above measuring staff
Go out, end point is provided with hook, for hammering 34 dismantling connections into shape with measurement.
Specifically, measuring staff lower mechanisms 2 include external screw-thread bar 21 and internal whorl bar 22, and internal whorl bar 22 is hollow
Bar, and inner surface is equipped with screw thread；21 outer surface of external screw-thread bar be equipped with screw thread, both ends respectively with the top body of rod 11 and internal whorl
Bar 22 is detachably connected by screw thread.
In order to reduce the error of measurement, the pulley 14 in tape measure channel 13 is for reducing smooth cord 33 and tape measure channel 13
The friction of inner surface；32 initial scale of tape measure be when measure hammer 34 naturally droops, smooth cord 33 tenses, initial graduation mark with read
When number line 18 overlaps, 11 top horizontal segment upper surface of the top body of rod and the vertical range for measuring 34 bottom ends of hammer.
The application method of the utility model compaction apparatus, generallys include following steps：
（1）Top body of rod top horizontal segment is withstood into back, by rotating inner part threaded rod, makes measuring staff lower mechanisms
Bottom plate is withstood after extension；
（2）After smooth cord is hung up measurement hammer, it is made to fall to bottom plate naturally；
（3）It is tunnel roof and floor distance to read steel tape registration in reading opening.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the scope of protection of the utility model.
Claims (2)
1. a kind of tunnel roof and floor range measurement bar, which is characterized in that it is formed including measuring staff upper mechanism and measuring staff lower mechanisms,
Measuring staff lower mechanisms are located at below measuring staff upper mechanism, are connected through a screw thread；
The measuring staff upper mechanism include top the body of rod and be located at top the body of rod in measuring unit；
The top body of rod is made of the symmetrical left half body of rod, the right half body of rod, is fixedly connected by fixed bolt；Upper square bar
Body is internally provided with tape measure storehouse and tape measure channel, and tape measure channel is respectively fixed with pulley in bending section and top horizontal section；Upper square bar
Body lower part, tape measure storehouse top are equipped with rectangle reading opening, and reading opening is penetrated through with internal tape measure channel, and centre is equipped with transparent glass
Plate posts cross-line on glass plate；
The measuring unit includes bend tape casing, tape measure, smooth thin line and measures hammer, the steel tape of tape measure and bend tape casing composition
It is fixed in tape measure storehouse by the left half body of rod and the extruding of the right half body of rod；The initial graduation mark of tape measure is overlapped with cross-line, and it is pushed up
Portion is fixedly connected with smooth thin line one end；The smooth thin line other end passes through tape measure channel inside the body of rod of top and is arranged in tape measure
It after pulley in channel, is pierced by by body of rod top horizontal segment above measuring staff, end point is provided with hook, for being torn open with measurement hammer
Unload connection；
The measuring staff lower mechanisms include external screw-thread bar and internal whorl bar, and internal whorl bar is hollow stem, and inner surface is set
There is screw thread；External screw-thread rod outer surface is equipped with screw thread, and both ends are removable by screw thread with square bar on measuring staff and internal whorl bar respectively
Unload connection.
2. roof and floor range measurement bar in tunnel according to claim 1, it is characterised in that：Pulley in tape measure channel is used for
Reduce the friction of smooth cord and tape measure channel inner surface；The initial scale of tape measure is top body of rod top when measuring hammer to naturally droop
It holds horizontal segment upper surface and measures the vertical range of hammer bottom end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028570.5U CN207894346U (en) | 2018-01-09 | 2018-01-09 | A kind of tunnel roof and floor range measurement bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028570.5U CN207894346U (en) | 2018-01-09 | 2018-01-09 | A kind of tunnel roof and floor range measurement bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207894346U true CN207894346U (en) | 2018-09-21 |
Family
ID=63551515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820028570.5U Expired - Fee Related CN207894346U (en) | 2018-01-09 | 2018-01-09 | A kind of tunnel roof and floor range measurement bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207894346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514093A (en) * | 2019-09-23 | 2019-11-29 | 山东科技大学 | A kind of wide range roof to floor convergence tester and its application method |
-
2018
- 2018-01-09 CN CN201820028570.5U patent/CN207894346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514093A (en) * | 2019-09-23 | 2019-11-29 | 山东科技大学 | A kind of wide range roof to floor convergence tester and its application method |
| CN110514093B (en) * | 2019-09-23 | 2024-05-24 | 山东科技大学 | Wide-range top-bottom plate approaching amount tester and use method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20190109 |